Clean up directory structure, improve README

Also this should make GitHub ignore the vendored code for the purpose
of detecting programming languages used in the repository. See
https://github.com/github-linguist/linguist/blob/main/docs/overrides.md#vendored-code

1 files changed, 0 insertions, 65227 deletions

diff --git a/priv/static/video.js/alt/video.debug.js b/priv/static/video.js/alt/video.debug.js
deleted file mode 100644
index 0a687f7..0000000
--- a/priv/static/video.js/alt/video.debug.js
+++ /dev/null
@@ -1,65227 +0,0 @@
-/**
- * @license
- * Video.js 8.12.0 <http://videojs.com/>
- * Copyright Brightcove, Inc. <https://www.brightcove.com/>
- * Available under Apache License Version 2.0
- * <https://github.com/videojs/video.js/blob/main/LICENSE>
- *
- * Includes vtt.js <https://github.com/mozilla/vtt.js>
- * Available under Apache License Version 2.0
- * <https://github.com/mozilla/vtt.js/blob/main/LICENSE>
- */
-
-(function (global, factory) {
-  typeof exports === 'object' && typeof module !== 'undefined' ? module.exports = factory() :
-  typeof define === 'function' && define.amd ? define(factory) :
-  (global = typeof globalThis !== 'undefined' ? globalThis : global || self, global.videojs = factory());
-})(this, (function () { 'use strict';
-
-  var version$5 = "8.12.0";
-
-  /**
-   * An Object that contains lifecycle hooks as keys which point to an array
-   * of functions that are run when a lifecycle is triggered
-   *
-   * @private
-   */
-  const hooks_ = {};
-
-  /**
-   * Get a list of hooks for a specific lifecycle
-   *
-   * @param  {string} type
-   *         the lifecycle to get hooks from
-   *
-   * @param  {Function|Function[]} [fn]
-   *         Optionally add a hook (or hooks) to the lifecycle that your are getting.
-   *
-   * @return {Array}
-   *         an array of hooks, or an empty array if there are none.
-   */
-  const hooks = function (type, fn) {
-    hooks_[type] = hooks_[type] || [];
-    if (fn) {
-      hooks_[type] = hooks_[type].concat(fn);
-    }
-    return hooks_[type];
-  };
-
-  /**
-   * Add a function hook to a specific videojs lifecycle.
-   *
-   * @param {string} type
-   *        the lifecycle to hook the function to.
-   *
-   * @param {Function|Function[]}
-   *        The function or array of functions to attach.
-   */
-  const hook = function (type, fn) {
-    hooks(type, fn);
-  };
-
-  /**
-   * Remove a hook from a specific videojs lifecycle.
-   *
-   * @param  {string} type
-   *         the lifecycle that the function hooked to
-   *
-   * @param  {Function} fn
-   *         The hooked function to remove
-   *
-   * @return {boolean}
-   *         The function that was removed or undef
-   */
-  const removeHook = function (type, fn) {
-    const index = hooks(type).indexOf(fn);
-    if (index <= -1) {
-      return false;
-    }
-    hooks_[type] = hooks_[type].slice();
-    hooks_[type].splice(index, 1);
-    return true;
-  };
-
-  /**
-   * Add a function hook that will only run once to a specific videojs lifecycle.
-   *
-   * @param {string} type
-   *        the lifecycle to hook the function to.
-   *
-   * @param {Function|Function[]}
-   *        The function or array of functions to attach.
-   */
-  const hookOnce = function (type, fn) {
-    hooks(type, [].concat(fn).map(original => {
-      const wrapper = (...args) => {
-        removeHook(type, wrapper);
-        return original(...args);
-      };
-      return wrapper;
-    }));
-  };
-
-  /**
-   * @file fullscreen-api.js
-   * @module fullscreen-api
-   */
-
-  /**
-   * Store the browser-specific methods for the fullscreen API.
-   *
-   * @type {Object}
-   * @see [Specification]{@link https://fullscreen.spec.whatwg.org}
-   * @see [Map Approach From Screenfull.js]{@link https://github.com/sindresorhus/screenfull.js}
-   */
-  const FullscreenApi = {
-    prefixed: true
-  };
-
-  // browser API methods
-  const apiMap = [['requestFullscreen', 'exitFullscreen', 'fullscreenElement', 'fullscreenEnabled', 'fullscreenchange', 'fullscreenerror', 'fullscreen'],
-  // WebKit
-  ['webkitRequestFullscreen', 'webkitExitFullscreen', 'webkitFullscreenElement', 'webkitFullscreenEnabled', 'webkitfullscreenchange', 'webkitfullscreenerror', '-webkit-full-screen']];
-  const specApi = apiMap[0];
-  let browserApi;
-
-  // determine the supported set of functions
-  for (let i = 0; i < apiMap.length; i++) {
-    // check for exitFullscreen function
-    if (apiMap[i][1] in document) {
-      browserApi = apiMap[i];
-      break;
-    }
-  }
-
-  // map the browser API names to the spec API names
-  if (browserApi) {
-    for (let i = 0; i < browserApi.length; i++) {
-      FullscreenApi[specApi[i]] = browserApi[i];
-    }
-    FullscreenApi.prefixed = browserApi[0] !== specApi[0];
-  }
-
-  /**
-   * @file create-logger.js
-   * @module create-logger
-   */
-
-  // This is the private tracking variable for the logging history.
-  let history = [];
-
-  /**
-   * Log messages to the console and history based on the type of message
-   *
-   * @private
-   * @param  {string} name
-   *         The name of the console method to use.
-   *
-   * @param  {Object} log
-   *         The arguments to be passed to the matching console method.
-   *
-   * @param {string} [styles]
-   *        styles for name
-   */
-  const LogByTypeFactory = (name, log, styles) => (type, level, args) => {
-    const lvl = log.levels[level];
-    const lvlRegExp = new RegExp(`^(${lvl})$`);
-    let resultName = name;
-    if (type !== 'log') {
-      // Add the type to the front of the message when it's not "log".
-      args.unshift(type.toUpperCase() + ':');
-    }
-    if (styles) {
-      resultName = `%c${name}`;
-      args.unshift(styles);
-    }
-
-    // Add console prefix after adding to history.
-    args.unshift(resultName + ':');
-
-    // Add a clone of the args at this point to history.
-    if (history) {
-      history.push([].concat(args));
-
-      // only store 1000 history entries
-      const splice = history.length - 1000;
-      history.splice(0, splice > 0 ? splice : 0);
-    }
-
-    // If there's no console then don't try to output messages, but they will
-    // still be stored in history.
-    if (!window.console) {
-      return;
-    }
-
-    // Was setting these once outside of this function, but containing them
-    // in the function makes it easier to test cases where console doesn't exist
-    // when the module is executed.
-    let fn = window.console[type];
-    if (!fn && type === 'debug') {
-      // Certain browsers don't have support for console.debug. For those, we
-      // should default to the closest comparable log.
-      fn = window.console.info || window.console.log;
-    }
-
-    // Bail out if there's no console or if this type is not allowed by the
-    // current logging level.
-    if (!fn || !lvl || !lvlRegExp.test(type)) {
-      return;
-    }
-    fn[Array.isArray(args) ? 'apply' : 'call'](window.console, args);
-  };
-  function createLogger$1(name, delimiter = ':', styles = '') {
-    // This is the private tracking variable for logging level.
-    let level = 'info';
-
-    // the curried logByType bound to the specific log and history
-    let logByType;
-
-    /**
-     * Logs plain debug messages. Similar to `console.log`.
-     *
-     * Due to [limitations](https://github.com/jsdoc3/jsdoc/issues/955#issuecomment-313829149)
-     * of our JSDoc template, we cannot properly document this as both a function
-     * and a namespace, so its function signature is documented here.
-     *
-     * #### Arguments
-     * ##### *args
-     * *[]
-     *
-     * Any combination of values that could be passed to `console.log()`.
-     *
-     * #### Return Value
-     *
-     * `undefined`
-     *
-     * @namespace
-     * @param    {...*} args
-     *           One or more messages or objects that should be logged.
-     */
-    const log = function (...args) {
-      logByType('log', level, args);
-    };
-
-    // This is the logByType helper that the logging methods below use
-    logByType = LogByTypeFactory(name, log, styles);
-
-    /**
-     * Create a new subLogger which chains the old name to the new name.
-     *
-     * For example, doing `videojs.log.createLogger('player')` and then using that logger will log the following:
-     * ```js
-     *  mylogger('foo');
-     *  // > VIDEOJS: player: foo
-     * ```
-     *
-     * @param {string} subName
-     *        The name to add call the new logger
-     * @param {string} [subDelimiter]
-     *        Optional delimiter
-     * @param {string} [subStyles]
-     *        Optional styles
-     * @return {Object}
-     */
-    log.createLogger = (subName, subDelimiter, subStyles) => {
-      const resultDelimiter = subDelimiter !== undefined ? subDelimiter : delimiter;
-      const resultStyles = subStyles !== undefined ? subStyles : styles;
-      const resultName = `${name} ${resultDelimiter} ${subName}`;
-      return createLogger$1(resultName, resultDelimiter, resultStyles);
-    };
-
-    /**
-     * Create a new logger.
-     *
-     * @param {string} newName
-     *        The name for the new logger
-     * @param {string} [newDelimiter]
-     *        Optional delimiter
-     * @param {string} [newStyles]
-     *        Optional styles
-     * @return {Object}
-     */
-    log.createNewLogger = (newName, newDelimiter, newStyles) => {
-      return createLogger$1(newName, newDelimiter, newStyles);
-    };
-
-    /**
-     * Enumeration of available logging levels, where the keys are the level names
-     * and the values are `|`-separated strings containing logging methods allowed
-     * in that logging level. These strings are used to create a regular expression
-     * matching the function name being called.
-     *
-     * Levels provided by Video.js are:
-     *
-     * - `off`: Matches no calls. Any value that can be cast to `false` will have
-     *   this effect. The most restrictive.
-     * - `all`: Matches only Video.js-provided functions (`debug`, `log`,
-     *   `log.warn`, and `log.error`).
-     * - `debug`: Matches `log.debug`, `log`, `log.warn`, and `log.error` calls.
-     * - `info` (default): Matches `log`, `log.warn`, and `log.error` calls.
-     * - `warn`: Matches `log.warn` and `log.error` calls.
-     * - `error`: Matches only `log.error` calls.
-     *
-     * @type {Object}
-     */
-    log.levels = {
-      all: 'debug|log|warn|error',
-      off: '',
-      debug: 'debug|log|warn|error',
-      info: 'log|warn|error',
-      warn: 'warn|error',
-      error: 'error',
-      DEFAULT: level
-    };
-
-    /**
-     * Get or set the current logging level.
-     *
-     * If a string matching a key from {@link module:log.levels} is provided, acts
-     * as a setter.
-     *
-     * @param  {'all'|'debug'|'info'|'warn'|'error'|'off'} [lvl]
-     *         Pass a valid level to set a new logging level.
-     *
-     * @return {string}
-     *         The current logging level.
-     */
-    log.level = lvl => {
-      if (typeof lvl === 'string') {
-        if (!log.levels.hasOwnProperty(lvl)) {
-          throw new Error(`"${lvl}" in not a valid log level`);
-        }
-        level = lvl;
-      }
-      return level;
-    };
-
-    /**
-     * Returns an array containing everything that has been logged to the history.
-     *
-     * This array is a shallow clone of the internal history record. However, its
-     * contents are _not_ cloned; so, mutating objects inside this array will
-     * mutate them in history.
-     *
-     * @return {Array}
-     */
-    log.history = () => history ? [].concat(history) : [];
-
-    /**
-     * Allows you to filter the history by the given logger name
-     *
-     * @param {string} fname
-     *        The name to filter by
-     *
-     * @return {Array}
-     *         The filtered list to return
-     */
-    log.history.filter = fname => {
-      return (history || []).filter(historyItem => {
-        // if the first item in each historyItem includes `fname`, then it's a match
-        return new RegExp(`.*${fname}.*`).test(historyItem[0]);
-      });
-    };
-
-    /**
-     * Clears the internal history tracking, but does not prevent further history
-     * tracking.
-     */
-    log.history.clear = () => {
-      if (history) {
-        history.length = 0;
-      }
-    };
-
-    /**
-     * Disable history tracking if it is currently enabled.
-     */
-    log.history.disable = () => {
-      if (history !== null) {
-        history.length = 0;
-        history = null;
-      }
-    };
-
-    /**
-     * Enable history tracking if it is currently disabled.
-     */
-    log.history.enable = () => {
-      if (history === null) {
-        history = [];
-      }
-    };
-
-    /**
-     * Logs error messages. Similar to `console.error`.
-     *
-     * @param {...*} args
-     *        One or more messages or objects that should be logged as an error
-     */
-    log.error = (...args) => logByType('error', level, args);
-
-    /**
-     * Logs warning messages. Similar to `console.warn`.
-     *
-     * @param {...*} args
-     *        One or more messages or objects that should be logged as a warning.
-     */
-    log.warn = (...args) => logByType('warn', level, args);
-
-    /**
-     * Logs debug messages. Similar to `console.debug`, but may also act as a comparable
-     * log if `console.debug` is not available
-     *
-     * @param {...*} args
-     *        One or more messages or objects that should be logged as debug.
-     */
-    log.debug = (...args) => logByType('debug', level, args);
-    return log;
-  }
-
-  /**
-   * @file log.js
-   * @module log
-   */
-  const log$1 = createLogger$1('VIDEOJS');
-  const createLogger = log$1.createLogger;
-
-  /**
-   * @file obj.js
-   * @module obj
-   */
-
-  /**
-   * @callback obj:EachCallback
-   *
-   * @param {*} value
-   *        The current key for the object that is being iterated over.
-   *
-   * @param {string} key
-   *        The current key-value for object that is being iterated over
-   */
-
-  /**
-   * @callback obj:ReduceCallback
-   *
-   * @param {*} accum
-   *        The value that is accumulating over the reduce loop.
-   *
-   * @param {*} value
-   *        The current key for the object that is being iterated over.
-   *
-   * @param {string} key
-   *        The current key-value for object that is being iterated over
-   *
-   * @return {*}
-   *         The new accumulated value.
-   */
-  const toString$1 = Object.prototype.toString;
-
-  /**
-   * Get the keys of an Object
-   *
-   * @param {Object}
-   *        The Object to get the keys from
-   *
-   * @return {string[]}
-   *         An array of the keys from the object. Returns an empty array if the
-   *         object passed in was invalid or had no keys.
-   *
-   * @private
-   */
-  const keys = function (object) {
-    return isObject$1(object) ? Object.keys(object) : [];
-  };
-
-  /**
-   * Array-like iteration for objects.
-   *
-   * @param {Object} object
-   *        The object to iterate over
-   *
-   * @param {obj:EachCallback} fn
-   *        The callback function which is called for each key in the object.
-   */
-  function each(object, fn) {
-    keys(object).forEach(key => fn(object[key], key));
-  }
-
-  /**
-   * Array-like reduce for objects.
-   *
-   * @param {Object} object
-   *        The Object that you want to reduce.
-   *
-   * @param {Function} fn
-   *         A callback function which is called for each key in the object. It
-   *         receives the accumulated value and the per-iteration value and key
-   *         as arguments.
-   *
-   * @param {*} [initial = 0]
-   *        Starting value
-   *
-   * @return {*}
-   *         The final accumulated value.
-   */
-  function reduce(object, fn, initial = 0) {
-    return keys(object).reduce((accum, key) => fn(accum, object[key], key), initial);
-  }
-
-  /**
-   * Returns whether a value is an object of any kind - including DOM nodes,
-   * arrays, regular expressions, etc. Not functions, though.
-   *
-   * This avoids the gotcha where using `typeof` on a `null` value
-   * results in `'object'`.
-   *
-   * @param  {Object} value
-   * @return {boolean}
-   */
-  function isObject$1(value) {
-    return !!value && typeof value === 'object';
-  }
-
-  /**
-   * Returns whether an object appears to be a "plain" object - that is, a
-   * direct instance of `Object`.
-   *
-   * @param  {Object} value
-   * @return {boolean}
-   */
-  function isPlain(value) {
-    return isObject$1(value) && toString$1.call(value) === '[object Object]' && value.constructor === Object;
-  }
-
-  /**
-   * Merge two objects recursively.
-   *
-   * Performs a deep merge like
-   * {@link https://lodash.com/docs/4.17.10#merge|lodash.merge}, but only merges
-   * plain objects (not arrays, elements, or anything else).
-   *
-   * Non-plain object values will be copied directly from the right-most
-   * argument.
-   *
-   * @param   {Object[]} sources
-   *          One or more objects to merge into a new object.
-   *
-   * @return {Object}
-   *          A new object that is the merged result of all sources.
-   */
-  function merge$2(...sources) {
-    const result = {};
-    sources.forEach(source => {
-      if (!source) {
-        return;
-      }
-      each(source, (value, key) => {
-        if (!isPlain(value)) {
-          result[key] = value;
-          return;
-        }
-        if (!isPlain(result[key])) {
-          result[key] = {};
-        }
-        result[key] = merge$2(result[key], value);
-      });
-    });
-    return result;
-  }
-
-  /**
-   * Returns an array of values for a given object
-   *
-   * @param  {Object} source - target object
-   * @return {Array<unknown>} - object values
-   */
-  function values$1(source = {}) {
-    const result = [];
-    for (const key in source) {
-      if (source.hasOwnProperty(key)) {
-        const value = source[key];
-        result.push(value);
-      }
-    }
-    return result;
-  }
-
-  /**
-   * Object.defineProperty but "lazy", which means that the value is only set after
-   * it is retrieved the first time, rather than being set right away.
-   *
-   * @param {Object} obj the object to set the property on
-   * @param {string} key the key for the property to set
-   * @param {Function} getValue the function used to get the value when it is needed.
-   * @param {boolean} setter whether a setter should be allowed or not
-   */
-  function defineLazyProperty(obj, key, getValue, setter = true) {
-    const set = value => Object.defineProperty(obj, key, {
-      value,
-      enumerable: true,
-      writable: true
-    });
-    const options = {
-      configurable: true,
-      enumerable: true,
-      get() {
-        const value = getValue();
-        set(value);
-        return value;
-      }
-    };
-    if (setter) {
-      options.set = set;
-    }
-    return Object.defineProperty(obj, key, options);
-  }
-
-  var Obj = /*#__PURE__*/Object.freeze({
-    __proto__: null,
-    each: each,
-    reduce: reduce,
-    isObject: isObject$1,
-    isPlain: isPlain,
-    merge: merge$2,
-    values: values$1,
-    defineLazyProperty: defineLazyProperty
-  });
-
-  /**
-   * @file browser.js
-   * @module browser
-   */
-
-  /**
-   * Whether or not this device is an iPod.
-   *
-   * @static
-   * @type {Boolean}
-   */
-  let IS_IPOD = false;
-
-  /**
-   * The detected iOS version - or `null`.
-   *
-   * @static
-   * @type {string|null}
-   */
-  let IOS_VERSION = null;
-
-  /**
-   * Whether or not this is an Android device.
-   *
-   * @static
-   * @type {Boolean}
-   */
-  let IS_ANDROID = false;
-
-  /**
-   * The detected Android version - or `null` if not Android or indeterminable.
-   *
-   * @static
-   * @type {number|string|null}
-   */
-  let ANDROID_VERSION;
-
-  /**
-   * Whether or not this is Mozilla Firefox.
-   *
-   * @static
-   * @type {Boolean}
-   */
-  let IS_FIREFOX = false;
-
-  /**
-   * Whether or not this is Microsoft Edge.
-   *
-   * @static
-   * @type {Boolean}
-   */
-  let IS_EDGE = false;
-
-  /**
-   * Whether or not this is any Chromium Browser
-   *
-   * @static
-   * @type {Boolean}
-   */
-  let IS_CHROMIUM = false;
-
-  /**
-   * Whether or not this is any Chromium browser that is not Edge.
-   *
-   * This will also be `true` for Chrome on iOS, which will have different support
-   * as it is actually Safari under the hood.
-   *
-   * Deprecated, as the behaviour to not match Edge was to prevent Legacy Edge's UA matching.
-   * IS_CHROMIUM should be used instead.
-   * "Chromium but not Edge" could be explicitly tested with IS_CHROMIUM && !IS_EDGE
-   *
-   * @static
-   * @deprecated
-   * @type {Boolean}
-   */
-  let IS_CHROME = false;
-
-  /**
-   * The detected Chromium version - or `null`.
-   *
-   * @static
-   * @type {number|null}
-   */
-  let CHROMIUM_VERSION = null;
-
-  /**
-   * The detected Google Chrome version - or `null`.
-   * This has always been the _Chromium_ version, i.e. would return on Chromium Edge.
-   * Deprecated, use CHROMIUM_VERSION instead.
-   *
-   * @static
-   * @deprecated
-   * @type {number|null}
-   */
-  let CHROME_VERSION = null;
-
-  /**
-   * The detected Internet Explorer version - or `null`.
-   *
-   * @static
-   * @deprecated
-   * @type {number|null}
-   */
-  let IE_VERSION = null;
-
-  /**
-   * Whether or not this is desktop Safari.
-   *
-   * @static
-   * @type {Boolean}
-   */
-  let IS_SAFARI = false;
-
-  /**
-   * Whether or not this is a Windows machine.
-   *
-   * @static
-   * @type {Boolean}
-   */
-  let IS_WINDOWS = false;
-
-  /**
-   * Whether or not this device is an iPad.
-   *
-   * @static
-   * @type {Boolean}
-   */
-  let IS_IPAD = false;
-
-  /**
-   * Whether or not this device is an iPhone.
-   *
-   * @static
-   * @type {Boolean}
-   */
-  // The Facebook app's UIWebView identifies as both an iPhone and iPad, so
-  // to identify iPhones, we need to exclude iPads.
-  // http://artsy.github.io/blog/2012/10/18/the-perils-of-ios-user-agent-sniffing/
-  let IS_IPHONE = false;
-
-  /**
-   * Whether or not this is a Tizen device.
-   *
-   * @static
-   * @type {Boolean}
-   */
-  let IS_TIZEN = false;
-
-  /**
-   * Whether or not this is a WebOS device.
-   *
-   * @static
-   * @type {Boolean}
-   */
-  let IS_WEBOS = false;
-
-  /**
-   * Whether or not this is a Smart TV (Tizen or WebOS) device.
-   *
-   * @static
-   * @type {Boolean}
-   */
-  let IS_SMART_TV = false;
-
-  /**
-   * Whether or not this device is touch-enabled.
-   *
-   * @static
-   * @const
-   * @type {Boolean}
-   */
-  const TOUCH_ENABLED = Boolean(isReal() && ('ontouchstart' in window || window.navigator.maxTouchPoints || window.DocumentTouch && window.document instanceof window.DocumentTouch));
-  const UAD = window.navigator && window.navigator.userAgentData;
-  if (UAD && UAD.platform && UAD.brands) {
-    // If userAgentData is present, use it instead of userAgent to avoid warnings
-    // Currently only implemented on Chromium
-    // userAgentData does not expose Android version, so ANDROID_VERSION remains `null`
-
-    IS_ANDROID = UAD.platform === 'Android';
-    IS_EDGE = Boolean(UAD.brands.find(b => b.brand === 'Microsoft Edge'));
-    IS_CHROMIUM = Boolean(UAD.brands.find(b => b.brand === 'Chromium'));
-    IS_CHROME = !IS_EDGE && IS_CHROMIUM;
-    CHROMIUM_VERSION = CHROME_VERSION = (UAD.brands.find(b => b.brand === 'Chromium') || {}).version || null;
-    IS_WINDOWS = UAD.platform === 'Windows';
-  }
-
-  // If the browser is not Chromium, either userAgentData is not present which could be an old Chromium browser,
-  //  or it's a browser that has added userAgentData since that we don't have tests for yet. In either case,
-  // the checks need to be made agiainst the regular userAgent string.
-  if (!IS_CHROMIUM) {
-    const USER_AGENT = window.navigator && window.navigator.userAgent || '';
-    IS_IPOD = /iPod/i.test(USER_AGENT);
-    IOS_VERSION = function () {
-      const match = USER_AGENT.match(/OS (\d+)_/i);
-      if (match && match[1]) {
-        return match[1];
-      }
-      return null;
-    }();
-    IS_ANDROID = /Android/i.test(USER_AGENT);
-    ANDROID_VERSION = function () {
-      // This matches Android Major.Minor.Patch versions
-      // ANDROID_VERSION is Major.Minor as a Number, if Minor isn't available, then only Major is returned
-      const match = USER_AGENT.match(/Android (\d+)(?:\.(\d+))?(?:\.(\d+))*/i);
-      if (!match) {
-        return null;
-      }
-      const major = match[1] && parseFloat(match[1]);
-      const minor = match[2] && parseFloat(match[2]);
-      if (major && minor) {
-        return parseFloat(match[1] + '.' + match[2]);
-      } else if (major) {
-        return major;
-      }
-      return null;
-    }();
-    IS_FIREFOX = /Firefox/i.test(USER_AGENT);
-    IS_EDGE = /Edg/i.test(USER_AGENT);
-    IS_CHROMIUM = /Chrome/i.test(USER_AGENT) || /CriOS/i.test(USER_AGENT);
-    IS_CHROME = !IS_EDGE && IS_CHROMIUM;
-    CHROMIUM_VERSION = CHROME_VERSION = function () {
-      const match = USER_AGENT.match(/(Chrome|CriOS)\/(\d+)/);
-      if (match && match[2]) {
-        return parseFloat(match[2]);
-      }
-      return null;
-    }();
-    IE_VERSION = function () {
-      const result = /MSIE\s(\d+)\.\d/.exec(USER_AGENT);
-      let version = result && parseFloat(result[1]);
-      if (!version && /Trident\/7.0/i.test(USER_AGENT) && /rv:11.0/.test(USER_AGENT)) {
-        // IE 11 has a different user agent string than other IE versions
-        version = 11.0;
-      }
-      return version;
-    }();
-    IS_TIZEN = /Tizen/i.test(USER_AGENT);
-    IS_WEBOS = /Web0S/i.test(USER_AGENT);
-    IS_SMART_TV = IS_TIZEN || IS_WEBOS;
-    IS_SAFARI = /Safari/i.test(USER_AGENT) && !IS_CHROME && !IS_ANDROID && !IS_EDGE && !IS_SMART_TV;
-    IS_WINDOWS = /Windows/i.test(USER_AGENT);
-    IS_IPAD = /iPad/i.test(USER_AGENT) || IS_SAFARI && TOUCH_ENABLED && !/iPhone/i.test(USER_AGENT);
-    IS_IPHONE = /iPhone/i.test(USER_AGENT) && !IS_IPAD;
-  }
-
-  /**
-   * Whether or not this is an iOS device.
-   *
-   * @static
-   * @const
-   * @type {Boolean}
-   */
-  const IS_IOS = IS_IPHONE || IS_IPAD || IS_IPOD;
-
-  /**
-   * Whether or not this is any flavor of Safari - including iOS.
-   *
-   * @static
-   * @const
-   * @type {Boolean}
-   */
-  const IS_ANY_SAFARI = (IS_SAFARI || IS_IOS) && !IS_CHROME;
-
-  var browser = /*#__PURE__*/Object.freeze({
-    __proto__: null,
-    get IS_IPOD () { return IS_IPOD; },
-    get IOS_VERSION () { return IOS_VERSION; },
-    get IS_ANDROID () { return IS_ANDROID; },
-    get ANDROID_VERSION () { return ANDROID_VERSION; },
-    get IS_FIREFOX () { return IS_FIREFOX; },
-    get IS_EDGE () { return IS_EDGE; },
-    get IS_CHROMIUM () { return IS_CHROMIUM; },
-    get IS_CHROME () { return IS_CHROME; },
-    get CHROMIUM_VERSION () { return CHROMIUM_VERSION; },
-    get CHROME_VERSION () { return CHROME_VERSION; },
-    get IE_VERSION () { return IE_VERSION; },
-    get IS_SAFARI () { return IS_SAFARI; },
-    get IS_WINDOWS () { return IS_WINDOWS; },
-    get IS_IPAD () { return IS_IPAD; },
-    get IS_IPHONE () { return IS_IPHONE; },
-    get IS_TIZEN () { return IS_TIZEN; },
-    get IS_WEBOS () { return IS_WEBOS; },
-    get IS_SMART_TV () { return IS_SMART_TV; },
-    TOUCH_ENABLED: TOUCH_ENABLED,
-    IS_IOS: IS_IOS,
-    IS_ANY_SAFARI: IS_ANY_SAFARI
-  });
-
-  /**
-   * @file dom.js
-   * @module dom
-   */
-
-  /**
-   * Detect if a value is a string with any non-whitespace characters.
-   *
-   * @private
-   * @param  {string} str
-   *         The string to check
-   *
-   * @return {boolean}
-   *         Will be `true` if the string is non-blank, `false` otherwise.
-   *
-   */
-  function isNonBlankString(str) {
-    // we use str.trim as it will trim any whitespace characters
-    // from the front or back of non-whitespace characters. aka
-    // Any string that contains non-whitespace characters will
-    // still contain them after `trim` but whitespace only strings
-    // will have a length of 0, failing this check.
-    return typeof str === 'string' && Boolean(str.trim());
-  }
-
-  /**
-   * Throws an error if the passed string has whitespace. This is used by
-   * class methods to be relatively consistent with the classList API.
-   *
-   * @private
-   * @param  {string} str
-   *         The string to check for whitespace.
-   *
-   * @throws {Error}
-   *         Throws an error if there is whitespace in the string.
-   */
-  function throwIfWhitespace(str) {
-    // str.indexOf instead of regex because str.indexOf is faster performance wise.
-    if (str.indexOf(' ') >= 0) {
-      throw new Error('class has illegal whitespace characters');
-    }
-  }
-
-  /**
-   * Whether the current DOM interface appears to be real (i.e. not simulated).
-   *
-   * @return {boolean}
-   *         Will be `true` if the DOM appears to be real, `false` otherwise.
-   */
-  function isReal() {
-    // Both document and window will never be undefined thanks to `global`.
-    return document === window.document;
-  }
-
-  /**
-   * Determines, via duck typing, whether or not a value is a DOM element.
-   *
-   * @param  {*} value
-   *         The value to check.
-   *
-   * @return {boolean}
-   *         Will be `true` if the value is a DOM element, `false` otherwise.
-   */
-  function isEl(value) {
-    return isObject$1(value) && value.nodeType === 1;
-  }
-
-  /**
-   * Determines if the current DOM is embedded in an iframe.
-   *
-   * @return {boolean}
-   *         Will be `true` if the DOM is embedded in an iframe, `false`
-   *         otherwise.
-   */
-  function isInFrame() {
-    // We need a try/catch here because Safari will throw errors when attempting
-    // to get either `parent` or `self`
-    try {
-      return window.parent !== window.self;
-    } catch (x) {
-      return true;
-    }
-  }
-
-  /**
-   * Creates functions to query the DOM using a given method.
-   *
-   * @private
-   * @param   {string} method
-   *          The method to create the query with.
-   *
-   * @return  {Function}
-   *          The query method
-   */
-  function createQuerier(method) {
-    return function (selector, context) {
-      if (!isNonBlankString(selector)) {
-        return document[method](null);
-      }
-      if (isNonBlankString(context)) {
-        context = document.querySelector(context);
-      }
-      const ctx = isEl(context) ? context : document;
-      return ctx[method] && ctx[method](selector);
-    };
-  }
-
-  /**
-   * Creates an element and applies properties, attributes, and inserts content.
-   *
-   * @param  {string} [tagName='div']
-   *         Name of tag to be created.
-   *
-   * @param  {Object} [properties={}]
-   *         Element properties to be applied.
-   *
-   * @param  {Object} [attributes={}]
-   *         Element attributes to be applied.
-   *
-   * @param {ContentDescriptor} [content]
-   *        A content descriptor object.
-   *
-   * @return {Element}
-   *         The element that was created.
-   */
-  function createEl(tagName = 'div', properties = {}, attributes = {}, content) {
-    const el = document.createElement(tagName);
-    Object.getOwnPropertyNames(properties).forEach(function (propName) {
-      const val = properties[propName];
-
-      // Handle textContent since it's not supported everywhere and we have a
-      // method for it.
-      if (propName === 'textContent') {
-        textContent(el, val);
-      } else if (el[propName] !== val || propName === 'tabIndex') {
-        el[propName] = val;
-      }
-    });
-    Object.getOwnPropertyNames(attributes).forEach(function (attrName) {
-      el.setAttribute(attrName, attributes[attrName]);
-    });
-    if (content) {
-      appendContent(el, content);
-    }
-    return el;
-  }
-
-  /**
-   * Injects text into an element, replacing any existing contents entirely.
-   *
-   * @param  {HTMLElement} el
-   *         The element to add text content into
-   *
-   * @param  {string} text
-   *         The text content to add.
-   *
-   * @return {Element}
-   *         The element with added text content.
-   */
-  function textContent(el, text) {
-    if (typeof el.textContent === 'undefined') {
-      el.innerText = text;
-    } else {
-      el.textContent = text;
-    }
-    return el;
-  }
-
-  /**
-   * Insert an element as the first child node of another
-   *
-   * @param {Element} child
-   *        Element to insert
-   *
-   * @param {Element} parent
-   *        Element to insert child into
-   */
-  function prependTo(child, parent) {
-    if (parent.firstChild) {
-      parent.insertBefore(child, parent.firstChild);
-    } else {
-      parent.appendChild(child);
-    }
-  }
-
-  /**
-   * Check if an element has a class name.
-   *
-   * @param  {Element} element
-   *         Element to check
-   *
-   * @param  {string} classToCheck
-   *         Class name to check for
-   *
-   * @return {boolean}
-   *         Will be `true` if the element has a class, `false` otherwise.
-   *
-   * @throws {Error}
-   *         Throws an error if `classToCheck` has white space.
-   */
-  function hasClass(element, classToCheck) {
-    throwIfWhitespace(classToCheck);
-    return element.classList.contains(classToCheck);
-  }
-
-  /**
-   * Add a class name to an element.
-   *
-   * @param  {Element} element
-   *         Element to add class name to.
-   *
-   * @param  {...string} classesToAdd
-   *         One or more class name to add.
-   *
-   * @return {Element}
-   *         The DOM element with the added class name.
-   */
-  function addClass(element, ...classesToAdd) {
-    element.classList.add(...classesToAdd.reduce((prev, current) => prev.concat(current.split(/\s+/)), []));
-    return element;
-  }
-
-  /**
-   * Remove a class name from an element.
-   *
-   * @param  {Element} element
-   *         Element to remove a class name from.
-   *
-   * @param  {...string} classesToRemove
-   *         One or more class name to remove.
-   *
-   * @return {Element}
-   *         The DOM element with class name removed.
-   */
-  function removeClass(element, ...classesToRemove) {
-    // Protect in case the player gets disposed
-    if (!element) {
-      log$1.warn("removeClass was called with an element that doesn't exist");
-      return null;
-    }
-    element.classList.remove(...classesToRemove.reduce((prev, current) => prev.concat(current.split(/\s+/)), []));
-    return element;
-  }
-
-  /**
-   * The callback definition for toggleClass.
-   *
-   * @callback module:dom~PredicateCallback
-   * @param    {Element} element
-   *           The DOM element of the Component.
-   *
-   * @param    {string} classToToggle
-   *           The `className` that wants to be toggled
-   *
-   * @return   {boolean|undefined}
-   *           If `true` is returned, the `classToToggle` will be added to the
-   *           `element`. If `false`, the `classToToggle` will be removed from
-   *           the `element`. If `undefined`, the callback will be ignored.
-   */
-
-  /**
-   * Adds or removes a class name to/from an element depending on an optional
-   * condition or the presence/absence of the class name.
-   *
-   * @param  {Element} element
-   *         The element to toggle a class name on.
-   *
-   * @param  {string} classToToggle
-   *         The class that should be toggled.
-   *
-   * @param  {boolean|module:dom~PredicateCallback} [predicate]
-   *         See the return value for {@link module:dom~PredicateCallback}
-   *
-   * @return {Element}
-   *         The element with a class that has been toggled.
-   */
-  function toggleClass(element, classToToggle, predicate) {
-    if (typeof predicate === 'function') {
-      predicate = predicate(element, classToToggle);
-    }
-    if (typeof predicate !== 'boolean') {
-      predicate = undefined;
-    }
-    classToToggle.split(/\s+/).forEach(className => element.classList.toggle(className, predicate));
-    return element;
-  }
-
-  /**
-   * Apply attributes to an HTML element.
-   *
-   * @param {Element} el
-   *        Element to add attributes to.
-   *
-   * @param {Object} [attributes]
-   *        Attributes to be applied.
-   */
-  function setAttributes(el, attributes) {
-    Object.getOwnPropertyNames(attributes).forEach(function (attrName) {
-      const attrValue = attributes[attrName];
-      if (attrValue === null || typeof attrValue === 'undefined' || attrValue === false) {
-        el.removeAttribute(attrName);
-      } else {
-        el.setAttribute(attrName, attrValue === true ? '' : attrValue);
-      }
-    });
-  }
-
-  /**
-   * Get an element's attribute values, as defined on the HTML tag.
-   *
-   * Attributes are not the same as properties. They're defined on the tag
-   * or with setAttribute.
-   *
-   * @param  {Element} tag
-   *         Element from which to get tag attributes.
-   *
-   * @return {Object}
-   *         All attributes of the element. Boolean attributes will be `true` or
-   *         `false`, others will be strings.
-   */
-  function getAttributes(tag) {
-    const obj = {};
-
-    // known boolean attributes
-    // we can check for matching boolean properties, but not all browsers
-    // and not all tags know about these attributes, so, we still want to check them manually
-    const knownBooleans = ['autoplay', 'controls', 'playsinline', 'loop', 'muted', 'default', 'defaultMuted'];
-    if (tag && tag.attributes && tag.attributes.length > 0) {
-      const attrs = tag.attributes;
-      for (let i = attrs.length - 1; i >= 0; i--) {
-        const attrName = attrs[i].name;
-        /** @type {boolean|string} */
-        let attrVal = attrs[i].value;
-
-        // check for known booleans
-        // the matching element property will return a value for typeof
-        if (knownBooleans.includes(attrName)) {
-          // the value of an included boolean attribute is typically an empty
-          // string ('') which would equal false if we just check for a false value.
-          // we also don't want support bad code like autoplay='false'
-          attrVal = attrVal !== null ? true : false;
-        }
-        obj[attrName] = attrVal;
-      }
-    }
-    return obj;
-  }
-
-  /**
-   * Get the value of an element's attribute.
-   *
-   * @param {Element} el
-   *        A DOM element.
-   *
-   * @param {string} attribute
-   *        Attribute to get the value of.
-   *
-   * @return {string}
-   *         The value of the attribute.
-   */
-  function getAttribute(el, attribute) {
-    return el.getAttribute(attribute);
-  }
-
-  /**
-   * Set the value of an element's attribute.
-   *
-   * @param {Element} el
-   *        A DOM element.
-   *
-   * @param {string} attribute
-   *        Attribute to set.
-   *
-   * @param {string} value
-   *        Value to set the attribute to.
-   */
-  function setAttribute(el, attribute, value) {
-    el.setAttribute(attribute, value);
-  }
-
-  /**
-   * Remove an element's attribute.
-   *
-   * @param {Element} el
-   *        A DOM element.
-   *
-   * @param {string} attribute
-   *        Attribute to remove.
-   */
-  function removeAttribute(el, attribute) {
-    el.removeAttribute(attribute);
-  }
-
-  /**
-   * Attempt to block the ability to select text.
-   */
-  function blockTextSelection() {
-    document.body.focus();
-    document.onselectstart = function () {
-      return false;
-    };
-  }
-
-  /**
-   * Turn off text selection blocking.
-   */
-  function unblockTextSelection() {
-    document.onselectstart = function () {
-      return true;
-    };
-  }
-
-  /**
-   * Identical to the native `getBoundingClientRect` function, but ensures that
-   * the method is supported at all (it is in all browsers we claim to support)
-   * and that the element is in the DOM before continuing.
-   *
-   * This wrapper function also shims properties which are not provided by some
-   * older browsers (namely, IE8).
-   *
-   * Additionally, some browsers do not support adding properties to a
-   * `ClientRect`/`DOMRect` object; so, we shallow-copy it with the standard
-   * properties (except `x` and `y` which are not widely supported). This helps
-   * avoid implementations where keys are non-enumerable.
-   *
-   * @param  {Element} el
-   *         Element whose `ClientRect` we want to calculate.
-   *
-   * @return {Object|undefined}
-   *         Always returns a plain object - or `undefined` if it cannot.
-   */
-  function getBoundingClientRect(el) {
-    if (el && el.getBoundingClientRect && el.parentNode) {
-      const rect = el.getBoundingClientRect();
-      const result = {};
-      ['bottom', 'height', 'left', 'right', 'top', 'width'].forEach(k => {
-        if (rect[k] !== undefined) {
-          result[k] = rect[k];
-        }
-      });
-      if (!result.height) {
-        result.height = parseFloat(computedStyle(el, 'height'));
-      }
-      if (!result.width) {
-        result.width = parseFloat(computedStyle(el, 'width'));
-      }
-      return result;
-    }
-  }
-
-  /**
-   * Represents the position of a DOM element on the page.
-   *
-   * @typedef  {Object} module:dom~Position
-   *
-   * @property {number} left
-   *           Pixels to the left.
-   *
-   * @property {number} top
-   *           Pixels from the top.
-   */
-
-  /**
-   * Get the position of an element in the DOM.
-   *
-   * Uses `getBoundingClientRect` technique from John Resig.
-   *
-   * @see http://ejohn.org/blog/getboundingclientrect-is-awesome/
-   *
-   * @param  {Element} el
-   *         Element from which to get offset.
-   *
-   * @return {module:dom~Position}
-   *         The position of the element that was passed in.
-   */
-  function findPosition(el) {
-    if (!el || el && !el.offsetParent) {
-      return {
-        left: 0,
-        top: 0,
-        width: 0,
-        height: 0
-      };
-    }
-    const width = el.offsetWidth;
-    const height = el.offsetHeight;
-    let left = 0;
-    let top = 0;
-    while (el.offsetParent && el !== document[FullscreenApi.fullscreenElement]) {
-      left += el.offsetLeft;
-      top += el.offsetTop;
-      el = el.offsetParent;
-    }
-    return {
-      left,
-      top,
-      width,
-      height
-    };
-  }
-
-  /**
-   * Represents x and y coordinates for a DOM element or mouse pointer.
-   *
-   * @typedef  {Object} module:dom~Coordinates
-   *
-   * @property {number} x
-   *           x coordinate in pixels
-   *
-   * @property {number} y
-   *           y coordinate in pixels
-   */
-
-  /**
-   * Get the pointer position within an element.
-   *
-   * The base on the coordinates are the bottom left of the element.
-   *
-   * @param  {Element} el
-   *         Element on which to get the pointer position on.
-   *
-   * @param  {Event} event
-   *         Event object.
-   *
-   * @return {module:dom~Coordinates}
-   *         A coordinates object corresponding to the mouse position.
-   *
-   */
-  function getPointerPosition(el, event) {
-    const translated = {
-      x: 0,
-      y: 0
-    };
-    if (IS_IOS) {
-      let item = el;
-      while (item && item.nodeName.toLowerCase() !== 'html') {
-        const transform = computedStyle(item, 'transform');
-        if (/^matrix/.test(transform)) {
-          const values = transform.slice(7, -1).split(/,\s/).map(Number);
-          translated.x += values[4];
-          translated.y += values[5];
-        } else if (/^matrix3d/.test(transform)) {
-          const values = transform.slice(9, -1).split(/,\s/).map(Number);
-          translated.x += values[12];
-          translated.y += values[13];
-        }
-        item = item.parentNode;
-      }
-    }
-    const position = {};
-    const boxTarget = findPosition(event.target);
-    const box = findPosition(el);
-    const boxW = box.width;
-    const boxH = box.height;
-    let offsetY = event.offsetY - (box.top - boxTarget.top);
-    let offsetX = event.offsetX - (box.left - boxTarget.left);
-    if (event.changedTouches) {
-      offsetX = event.changedTouches[0].pageX - box.left;
-      offsetY = event.changedTouches[0].pageY + box.top;
-      if (IS_IOS) {
-        offsetX -= translated.x;
-        offsetY -= translated.y;
-      }
-    }
-    position.y = 1 - Math.max(0, Math.min(1, offsetY / boxH));
-    position.x = Math.max(0, Math.min(1, offsetX / boxW));
-    return position;
-  }
-
-  /**
-   * Determines, via duck typing, whether or not a value is a text node.
-   *
-   * @param  {*} value
-   *         Check if this value is a text node.
-   *
-   * @return {boolean}
-   *         Will be `true` if the value is a text node, `false` otherwise.
-   */
-  function isTextNode$1(value) {
-    return isObject$1(value) && value.nodeType === 3;
-  }
-
-  /**
-   * Empties the contents of an element.
-   *
-   * @param  {Element} el
-   *         The element to empty children from
-   *
-   * @return {Element}
-   *         The element with no children
-   */
-  function emptyEl(el) {
-    while (el.firstChild) {
-      el.removeChild(el.firstChild);
-    }
-    return el;
-  }
-
-  /**
-   * This is a mixed value that describes content to be injected into the DOM
-   * via some method. It can be of the following types:
-   *
-   * Type       | Description
-   * -----------|-------------
-   * `string`   | The value will be normalized into a text node.
-   * `Element`  | The value will be accepted as-is.
-   * `Text`     | A TextNode. The value will be accepted as-is.
-   * `Array`    | A one-dimensional array of strings, elements, text nodes, or functions. These functions should return a string, element, or text node (any other return value, like an array, will be ignored).
-   * `Function` | A function, which is expected to return a string, element, text node, or array - any of the other possible values described above. This means that a content descriptor could be a function that returns an array of functions, but those second-level functions must return strings, elements, or text nodes.
-   *
-   * @typedef {string|Element|Text|Array|Function} ContentDescriptor
-   */
-
-  /**
-   * Normalizes content for eventual insertion into the DOM.
-   *
-   * This allows a wide range of content definition methods, but helps protect
-   * from falling into the trap of simply writing to `innerHTML`, which could
-   * be an XSS concern.
-   *
-   * The content for an element can be passed in multiple types and
-   * combinations, whose behavior is as follows:
-   *
-   * @param {ContentDescriptor} content
-   *        A content descriptor value.
-   *
-   * @return {Array}
-   *         All of the content that was passed in, normalized to an array of
-   *         elements or text nodes.
-   */
-  function normalizeContent(content) {
-    // First, invoke content if it is a function. If it produces an array,
-    // that needs to happen before normalization.
-    if (typeof content === 'function') {
-      content = content();
-    }
-
-    // Next up, normalize to an array, so one or many items can be normalized,
-    // filtered, and returned.
-    return (Array.isArray(content) ? content : [content]).map(value => {
-      // First, invoke value if it is a function to produce a new value,
-      // which will be subsequently normalized to a Node of some kind.
-      if (typeof value === 'function') {
-        value = value();
-      }
-      if (isEl(value) || isTextNode$1(value)) {
-        return value;
-      }
-      if (typeof value === 'string' && /\S/.test(value)) {
-        return document.createTextNode(value);
-      }
-    }).filter(value => value);
-  }
-
-  /**
-   * Normalizes and appends content to an element.
-   *
-   * @param  {Element} el
-   *         Element to append normalized content to.
-   *
-   * @param {ContentDescriptor} content
-   *        A content descriptor value.
-   *
-   * @return {Element}
-   *         The element with appended normalized content.
-   */
-  function appendContent(el, content) {
-    normalizeContent(content).forEach(node => el.appendChild(node));
-    return el;
-  }
-
-  /**
-   * Normalizes and inserts content into an element; this is identical to
-   * `appendContent()`, except it empties the element first.
-   *
-   * @param {Element} el
-   *        Element to insert normalized content into.
-   *
-   * @param {ContentDescriptor} content
-   *        A content descriptor value.
-   *
-   * @return {Element}
-   *         The element with inserted normalized content.
-   */
-  function insertContent(el, content) {
-    return appendContent(emptyEl(el), content);
-  }
-
-  /**
-   * Check if an event was a single left click.
-   *
-   * @param  {MouseEvent} event
-   *         Event object.
-   *
-   * @return {boolean}
-   *         Will be `true` if a single left click, `false` otherwise.
-   */
-  function isSingleLeftClick(event) {
-    // Note: if you create something draggable, be sure to
-    // call it on both `mousedown` and `mousemove` event,
-    // otherwise `mousedown` should be enough for a button
-
-    if (event.button === undefined && event.buttons === undefined) {
-      // Why do we need `buttons` ?
-      // Because, middle mouse sometimes have this:
-      // e.button === 0 and e.buttons === 4
-      // Furthermore, we want to prevent combination click, something like
-      // HOLD middlemouse then left click, that would be
-      // e.button === 0, e.buttons === 5
-      // just `button` is not gonna work
-
-      // Alright, then what this block does ?
-      // this is for chrome `simulate mobile devices`
-      // I want to support this as well
-
-      return true;
-    }
-    if (event.button === 0 && event.buttons === undefined) {
-      // Touch screen, sometimes on some specific device, `buttons`
-      // doesn't have anything (safari on ios, blackberry...)
-
-      return true;
-    }
-
-    // `mouseup` event on a single left click has
-    // `button` and `buttons` equal to 0
-    if (event.type === 'mouseup' && event.button === 0 && event.buttons === 0) {
-      return true;
-    }
-    if (event.button !== 0 || event.buttons !== 1) {
-      // This is the reason we have those if else block above
-      // if any special case we can catch and let it slide
-      // we do it above, when get to here, this definitely
-      // is-not-left-click
-
-      return false;
-    }
-    return true;
-  }
-
-  /**
-   * Finds a single DOM element matching `selector` within the optional
-   * `context` of another DOM element (defaulting to `document`).
-   *
-   * @param  {string} selector
-   *         A valid CSS selector, which will be passed to `querySelector`.
-   *
-   * @param  {Element|String} [context=document]
-   *         A DOM element within which to query. Can also be a selector
-   *         string in which case the first matching element will be used
-   *         as context. If missing (or no element matches selector), falls
-   *         back to `document`.
-   *
-   * @return {Element|null}
-   *         The element that was found or null.
-   */
-  const $ = createQuerier('querySelector');
-
-  /**
-   * Finds a all DOM elements matching `selector` within the optional
-   * `context` of another DOM element (defaulting to `document`).
-   *
-   * @param  {string} selector
-   *         A valid CSS selector, which will be passed to `querySelectorAll`.
-   *
-   * @param  {Element|String} [context=document]
-   *         A DOM element within which to query. Can also be a selector
-   *         string in which case the first matching element will be used
-   *         as context. If missing (or no element matches selector), falls
-   *         back to `document`.
-   *
-   * @return {NodeList}
-   *         A element list of elements that were found. Will be empty if none
-   *         were found.
-   *
-   */
-  const $$ = createQuerier('querySelectorAll');
-
-  /**
-   * A safe getComputedStyle.
-   *
-   * This is needed because in Firefox, if the player is loaded in an iframe with
-   * `display:none`, then `getComputedStyle` returns `null`, so, we do a
-   * null-check to make sure that the player doesn't break in these cases.
-   *
-   * @param    {Element} el
-   *           The element you want the computed style of
-   *
-   * @param    {string} prop
-   *           The property name you want
-   *
-   * @see      https://bugzilla.mozilla.org/show_bug.cgi?id=548397
-   */
-  function computedStyle(el, prop) {
-    if (!el || !prop) {
-      return '';
-    }
-    if (typeof window.getComputedStyle === 'function') {
-      let computedStyleValue;
-      try {
-        computedStyleValue = window.getComputedStyle(el);
-      } catch (e) {
-        return '';
-      }
-      return computedStyleValue ? computedStyleValue.getPropertyValue(prop) || computedStyleValue[prop] : '';
-    }
-    return '';
-  }
-
-  /**
-   * Copy document style sheets to another window.
-   *
-   * @param    {Window} win
-   *           The window element you want to copy the document style sheets to.
-   *
-   */
-  function copyStyleSheetsToWindow(win) {
-    [...document.styleSheets].forEach(styleSheet => {
-      try {
-        const cssRules = [...styleSheet.cssRules].map(rule => rule.cssText).join('');
-        const style = document.createElement('style');
-        style.textContent = cssRules;
-        win.document.head.appendChild(style);
-      } catch (e) {
-        const link = document.createElement('link');
-        link.rel = 'stylesheet';
-        link.type = styleSheet.type;
-        // For older Safari this has to be the string; on other browsers setting the MediaList works
-        link.media = styleSheet.media.mediaText;
-        link.href = styleSheet.href;
-        win.document.head.appendChild(link);
-      }
-    });
-  }
-
-  var Dom = /*#__PURE__*/Object.freeze({
-    __proto__: null,
-    isReal: isReal,
-    isEl: isEl,
-    isInFrame: isInFrame,
-    createEl: createEl,
-    textContent: textContent,
-    prependTo: prependTo,
-    hasClass: hasClass,
-    addClass: addClass,
-    removeClass: removeClass,
-    toggleClass: toggleClass,
-    setAttributes: setAttributes,
-    getAttributes: getAttributes,
-    getAttribute: getAttribute,
-    setAttribute: setAttribute,
-    removeAttribute: removeAttribute,
-    blockTextSelection: blockTextSelection,
-    unblockTextSelection: unblockTextSelection,
-    getBoundingClientRect: getBoundingClientRect,
-    findPosition: findPosition,
-    getPointerPosition: getPointerPosition,
-    isTextNode: isTextNode$1,
-    emptyEl: emptyEl,
-    normalizeContent: normalizeContent,
-    appendContent: appendContent,
-    insertContent: insertContent,
-    isSingleLeftClick: isSingleLeftClick,
-    $: $,
-    $$: $$,
-    computedStyle: computedStyle,
-    copyStyleSheetsToWindow: copyStyleSheetsToWindow
-  });
-
-  /**
-   * @file setup.js - Functions for setting up a player without
-   * user interaction based on the data-setup `attribute` of the video tag.
-   *
-   * @module setup
-   */
-  let _windowLoaded = false;
-  let videojs$1;
-
-  /**
-   * Set up any tags that have a data-setup `attribute` when the player is started.
-   */
-  const autoSetup = function () {
-    if (videojs$1.options.autoSetup === false) {
-      return;
-    }
-    const vids = Array.prototype.slice.call(document.getElementsByTagName('video'));
-    const audios = Array.prototype.slice.call(document.getElementsByTagName('audio'));
-    const divs = Array.prototype.slice.call(document.getElementsByTagName('video-js'));
-    const mediaEls = vids.concat(audios, divs);
-
-    // Check if any media elements exist
-    if (mediaEls && mediaEls.length > 0) {
-      for (let i = 0, e = mediaEls.length; i < e; i++) {
-        const mediaEl = mediaEls[i];
-
-        // Check if element exists, has getAttribute func.
-        if (mediaEl && mediaEl.getAttribute) {
-          // Make sure this player hasn't already been set up.
-          if (mediaEl.player === undefined) {
-            const options = mediaEl.getAttribute('data-setup');
-
-            // Check if data-setup attr exists.
-            // We only auto-setup if they've added the data-setup attr.
-            if (options !== null) {
-              // Create new video.js instance.
-              videojs$1(mediaEl);
-            }
-          }
-
-          // If getAttribute isn't defined, we need to wait for the DOM.
-        } else {
-          autoSetupTimeout(1);
-          break;
-        }
-      }
-
-      // No videos were found, so keep looping unless page is finished loading.
-    } else if (!_windowLoaded) {
-      autoSetupTimeout(1);
-    }
-  };
-
-  /**
-   * Wait until the page is loaded before running autoSetup. This will be called in
-   * autoSetup if `hasLoaded` returns false.
-   *
-   * @param {number} wait
-   *        How long to wait in ms
-   *
-   * @param {module:videojs} [vjs]
-   *        The videojs library function
-   */
-  function autoSetupTimeout(wait, vjs) {
-    // Protect against breakage in non-browser environments
-    if (!isReal()) {
-      return;
-    }
-    if (vjs) {
-      videojs$1 = vjs;
-    }
-    window.setTimeout(autoSetup, wait);
-  }
-
-  /**
-   * Used to set the internal tracking of window loaded state to true.
-   *
-   * @private
-   */
-  function setWindowLoaded() {
-    _windowLoaded = true;
-    window.removeEventListener('load', setWindowLoaded);
-  }
-  if (isReal()) {
-    if (document.readyState === 'complete') {
-      setWindowLoaded();
-    } else {
-      /**
-       * Listen for the load event on window, and set _windowLoaded to true.
-       *
-       * We use a standard event listener here to avoid incrementing the GUID
-       * before any players are created.
-       *
-       * @listens load
-       */
-      window.addEventListener('load', setWindowLoaded);
-    }
-  }
-
-  /**
-   * @file stylesheet.js
-   * @module stylesheet
-   */
-
-  /**
-   * Create a DOM style element given a className for it.
-   *
-   * @param {string} className
-   *        The className to add to the created style element.
-   *
-   * @return {Element}
-   *         The element that was created.
-   */
-  const createStyleElement = function (className) {
-    const style = document.createElement('style');
-    style.className = className;
-    return style;
-  };
-
-  /**
-   * Add text to a DOM element.
-   *
-   * @param {Element} el
-   *        The Element to add text content to.
-   *
-   * @param {string} content
-   *        The text to add to the element.
-   */
-  const setTextContent = function (el, content) {
-    if (el.styleSheet) {
-      el.styleSheet.cssText = content;
-    } else {
-      el.textContent = content;
-    }
-  };
-
-  /**
-   * @file dom-data.js
-   * @module dom-data
-   */
-
-  /**
-   * Element Data Store.
-   *
-   * Allows for binding data to an element without putting it directly on the
-   * element. Ex. Event listeners are stored here.
-   * (also from jsninja.com, slightly modified and updated for closure compiler)
-   *
-   * @type {Object}
-   * @private
-   */
-  var DomData = new WeakMap();
-
-  /**
-   * @file guid.js
-   * @module guid
-   */
-
-  // Default value for GUIDs. This allows us to reset the GUID counter in tests.
-  //
-  // The initial GUID is 3 because some users have come to rely on the first
-  // default player ID ending up as `vjs_video_3`.
-  //
-  // See: https://github.com/videojs/video.js/pull/6216
-  const _initialGuid = 3;
-
-  /**
-   * Unique ID for an element or function
-   *
-   * @type {Number}
-   */
-  let _guid = _initialGuid;
-
-  /**
-   * Get a unique auto-incrementing ID by number that has not been returned before.
-   *
-   * @return {number}
-   *         A new unique ID.
-   */
-  function newGUID() {
-    return _guid++;
-  }
-
-  /**
-   * @file events.js. An Event System (John Resig - Secrets of a JS Ninja http://jsninja.com/)
-   * (Original book version wasn't completely usable, so fixed some things and made Closure Compiler compatible)
-   * This should work very similarly to jQuery's events, however it's based off the book version which isn't as
-   * robust as jquery's, so there's probably some differences.
-   *
-   * @file events.js
-   * @module events
-   */
-
-  /**
-   * Clean up the listener cache and dispatchers
-   *
-   * @param {Element|Object} elem
-   *        Element to clean up
-   *
-   * @param {string} type
-   *        Type of event to clean up
-   */
-  function _cleanUpEvents(elem, type) {
-    if (!DomData.has(elem)) {
-      return;
-    }
-    const data = DomData.get(elem);
-
-    // Remove the events of a particular type if there are none left
-    if (data.handlers[type].length === 0) {
-      delete data.handlers[type];
-      // data.handlers[type] = null;
-      // Setting to null was causing an error with data.handlers
-
-      // Remove the meta-handler from the element
-      if (elem.removeEventListener) {
-        elem.removeEventListener(type, data.dispatcher, false);
-      } else if (elem.detachEvent) {
-        elem.detachEvent('on' + type, data.dispatcher);
-      }
-    }
-
-    // Remove the events object if there are no types left
-    if (Object.getOwnPropertyNames(data.handlers).length <= 0) {
-      delete data.handlers;
-      delete data.dispatcher;
-      delete data.disabled;
-    }
-
-    // Finally remove the element data if there is no data left
-    if (Object.getOwnPropertyNames(data).length === 0) {
-      DomData.delete(elem);
-    }
-  }
-
-  /**
-   * Loops through an array of event types and calls the requested method for each type.
-   *
-   * @param {Function} fn
-   *        The event method we want to use.
-   *
-   * @param {Element|Object} elem
-   *        Element or object to bind listeners to
-   *
-   * @param {string[]} types
-   *        Type of event to bind to.
-   *
-   * @param {Function} callback
-   *        Event listener.
-   */
-  function _handleMultipleEvents(fn, elem, types, callback) {
-    types.forEach(function (type) {
-      // Call the event method for each one of the types
-      fn(elem, type, callback);
-    });
-  }
-
-  /**
-   * Fix a native event to have standard property values
-   *
-   * @param {Object} event
-   *        Event object to fix.
-   *
-   * @return {Object}
-   *         Fixed event object.
-   */
-  function fixEvent(event) {
-    if (event.fixed_) {
-      return event;
-    }
-    function returnTrue() {
-      return true;
-    }
-    function returnFalse() {
-      return false;
-    }
-
-    // Test if fixing up is needed
-    // Used to check if !event.stopPropagation instead of isPropagationStopped
-    // But native events return true for stopPropagation, but don't have
-    // other expected methods like isPropagationStopped. Seems to be a problem
-    // with the Javascript Ninja code. So we're just overriding all events now.
-    if (!event || !event.isPropagationStopped || !event.isImmediatePropagationStopped) {
-      const old = event || window.event;
-      event = {};
-      // Clone the old object so that we can modify the values event = {};
-      // IE8 Doesn't like when you mess with native event properties
-      // Firefox returns false for event.hasOwnProperty('type') and other props
-      //  which makes copying more difficult.
-      // TODO: Probably best to create a whitelist of event props
-      for (const key in old) {
-        // Safari 6.0.3 warns you if you try to copy deprecated layerX/Y
-        // Chrome warns you if you try to copy deprecated keyboardEvent.keyLocation
-        // and webkitMovementX/Y
-        // Lighthouse complains if Event.path is copied
-        if (key !== 'layerX' && key !== 'layerY' && key !== 'keyLocation' && key !== 'webkitMovementX' && key !== 'webkitMovementY' && key !== 'path') {
-          // Chrome 32+ warns if you try to copy deprecated returnValue, but
-          // we still want to if preventDefault isn't supported (IE8).
-          if (!(key === 'returnValue' && old.preventDefault)) {
-            event[key] = old[key];
-          }
-        }
-      }
-
-      // The event occurred on this element
-      if (!event.target) {
-        event.target = event.srcElement || document;
-      }
-
-      // Handle which other element the event is related to
-      if (!event.relatedTarget) {
-        event.relatedTarget = event.fromElement === event.target ? event.toElement : event.fromElement;
-      }
-
-      // Stop the default browser action
-      event.preventDefault = function () {
-        if (old.preventDefault) {
-          old.preventDefault();
-        }
-        event.returnValue = false;
-        old.returnValue = false;
-        event.defaultPrevented = true;
-      };
-      event.defaultPrevented = false;
-
-      // Stop the event from bubbling
-      event.stopPropagation = function () {
-        if (old.stopPropagation) {
-          old.stopPropagation();
-        }
-        event.cancelBubble = true;
-        old.cancelBubble = true;
-        event.isPropagationStopped = returnTrue;
-      };
-      event.isPropagationStopped = returnFalse;
-
-      // Stop the event from bubbling and executing other handlers
-      event.stopImmediatePropagation = function () {
-        if (old.stopImmediatePropagation) {
-          old.stopImmediatePropagation();
-        }
-        event.isImmediatePropagationStopped = returnTrue;
-        event.stopPropagation();
-      };
-      event.isImmediatePropagationStopped = returnFalse;
-
-      // Handle mouse position
-      if (event.clientX !== null && event.clientX !== undefined) {
-        const doc = document.documentElement;
-        const body = document.body;
-        event.pageX = event.clientX + (doc && doc.scrollLeft || body && body.scrollLeft || 0) - (doc && doc.clientLeft || body && body.clientLeft || 0);
-        event.pageY = event.clientY + (doc && doc.scrollTop || body && body.scrollTop || 0) - (doc && doc.clientTop || body && body.clientTop || 0);
-      }
-
-      // Handle key presses
-      event.which = event.charCode || event.keyCode;
-
-      // Fix button for mouse clicks:
-      // 0 == left; 1 == middle; 2 == right
-      if (event.button !== null && event.button !== undefined) {
-        // The following is disabled because it does not pass videojs-standard
-        // and... yikes.
-        /* eslint-disable */
-        event.button = event.button & 1 ? 0 : event.button & 4 ? 1 : event.button & 2 ? 2 : 0;
-        /* eslint-enable */
-      }
-    }
-
-    event.fixed_ = true;
-    // Returns fixed-up instance
-    return event;
-  }
-
-  /**
-   * Whether passive event listeners are supported
-   */
-  let _supportsPassive;
-  const supportsPassive = function () {
-    if (typeof _supportsPassive !== 'boolean') {
-      _supportsPassive = false;
-      try {
-        const opts = Object.defineProperty({}, 'passive', {
-          get() {
-            _supportsPassive = true;
-          }
-        });
-        window.addEventListener('test', null, opts);
-        window.removeEventListener('test', null, opts);
-      } catch (e) {
-        // disregard
-      }
-    }
-    return _supportsPassive;
-  };
-
-  /**
-   * Touch events Chrome expects to be passive
-   */
-  const passiveEvents = ['touchstart', 'touchmove'];
-
-  /**
-   * Add an event listener to element
-   * It stores the handler function in a separate cache object
-   * and adds a generic handler to the element's event,
-   * along with a unique id (guid) to the element.
-   *
-   * @param {Element|Object} elem
-   *        Element or object to bind listeners to
-   *
-   * @param {string|string[]} type
-   *        Type of event to bind to.
-   *
-   * @param {Function} fn
-   *        Event listener.
-   */
-  function on(elem, type, fn) {
-    if (Array.isArray(type)) {
-      return _handleMultipleEvents(on, elem, type, fn);
-    }
-    if (!DomData.has(elem)) {
-      DomData.set(elem, {});
-    }
-    const data = DomData.get(elem);
-
-    // We need a place to store all our handler data
-    if (!data.handlers) {
-      data.handlers = {};
-    }
-    if (!data.handlers[type]) {
-      data.handlers[type] = [];
-    }
-    if (!fn.guid) {
-      fn.guid = newGUID();
-    }
-    data.handlers[type].push(fn);
-    if (!data.dispatcher) {
-      data.disabled = false;
-      data.dispatcher = function (event, hash) {
-        if (data.disabled) {
-          return;
-        }
-        event = fixEvent(event);
-        const handlers = data.handlers[event.type];
-        if (handlers) {
-          // Copy handlers so if handlers are added/removed during the process it doesn't throw everything off.
-          const handlersCopy = handlers.slice(0);
-          for (let m = 0, n = handlersCopy.length; m < n; m++) {
-            if (event.isImmediatePropagationStopped()) {
-              break;
-            } else {
-              try {
-                handlersCopy[m].call(elem, event, hash);
-              } catch (e) {
-                log$1.error(e);
-              }
-            }
-          }
-        }
-      };
-    }
-    if (data.handlers[type].length === 1) {
-      if (elem.addEventListener) {
-        let options = false;
-        if (supportsPassive() && passiveEvents.indexOf(type) > -1) {
-          options = {
-            passive: true
-          };
-        }
-        elem.addEventListener(type, data.dispatcher, options);
-      } else if (elem.attachEvent) {
-        elem.attachEvent('on' + type, data.dispatcher);
-      }
-    }
-  }
-
-  /**
-   * Removes event listeners from an element
-   *
-   * @param {Element|Object} elem
-   *        Object to remove listeners from.
-   *
-   * @param {string|string[]} [type]
-   *        Type of listener to remove. Don't include to remove all events from element.
-   *
-   * @param {Function} [fn]
-   *        Specific listener to remove. Don't include to remove listeners for an event
-   *        type.
-   */
-  function off(elem, type, fn) {
-    // Don't want to add a cache object through getElData if not needed
-    if (!DomData.has(elem)) {
-      return;
-    }
-    const data = DomData.get(elem);
-
-    // If no events exist, nothing to unbind
-    if (!data.handlers) {
-      return;
-    }
-    if (Array.isArray(type)) {
-      return _handleMultipleEvents(off, elem, type, fn);
-    }
-
-    // Utility function
-    const removeType = function (el, t) {
-      data.handlers[t] = [];
-      _cleanUpEvents(el, t);
-    };
-
-    // Are we removing all bound events?
-    if (type === undefined) {
-      for (const t in data.handlers) {
-        if (Object.prototype.hasOwnProperty.call(data.handlers || {}, t)) {
-          removeType(elem, t);
-        }
-      }
-      return;
-    }
-    const handlers = data.handlers[type];
-
-    // If no handlers exist, nothing to unbind
-    if (!handlers) {
-      return;
-    }
-
-    // If no listener was provided, remove all listeners for type
-    if (!fn) {
-      removeType(elem, type);
-      return;
-    }
-
-    // We're only removing a single handler
-    if (fn.guid) {
-      for (let n = 0; n < handlers.length; n++) {
-        if (handlers[n].guid === fn.guid) {
-          handlers.splice(n--, 1);
-        }
-      }
-    }
-    _cleanUpEvents(elem, type);
-  }
-
-  /**
-   * Trigger an event for an element
-   *
-   * @param {Element|Object} elem
-   *        Element to trigger an event on
-   *
-   * @param {EventTarget~Event|string} event
-   *        A string (the type) or an event object with a type attribute
-   *
-   * @param {Object} [hash]
-   *        data hash to pass along with the event
-   *
-   * @return {boolean|undefined}
-   *         Returns the opposite of `defaultPrevented` if default was
-   *         prevented. Otherwise, returns `undefined`
-   */
-  function trigger(elem, event, hash) {
-    // Fetches element data and a reference to the parent (for bubbling).
-    // Don't want to add a data object to cache for every parent,
-    // so checking hasElData first.
-    const elemData = DomData.has(elem) ? DomData.get(elem) : {};
-    const parent = elem.parentNode || elem.ownerDocument;
-    // type = event.type || event,
-    // handler;
-
-    // If an event name was passed as a string, creates an event out of it
-    if (typeof event === 'string') {
-      event = {
-        type: event,
-        target: elem
-      };
-    } else if (!event.target) {
-      event.target = elem;
-    }
-
-    // Normalizes the event properties.
-    event = fixEvent(event);
-
-    // If the passed element has a dispatcher, executes the established handlers.
-    if (elemData.dispatcher) {
-      elemData.dispatcher.call(elem, event, hash);
-    }
-
-    // Unless explicitly stopped or the event does not bubble (e.g. media events)
-    // recursively calls this function to bubble the event up the DOM.
-    if (parent && !event.isPropagationStopped() && event.bubbles === true) {
-      trigger.call(null, parent, event, hash);
-
-      // If at the top of the DOM, triggers the default action unless disabled.
-    } else if (!parent && !event.defaultPrevented && event.target && event.target[event.type]) {
-      if (!DomData.has(event.target)) {
-        DomData.set(event.target, {});
-      }
-      const targetData = DomData.get(event.target);
-
-      // Checks if the target has a default action for this event.
-      if (event.target[event.type]) {
-        // Temporarily disables event dispatching on the target as we have already executed the handler.
-        targetData.disabled = true;
-        // Executes the default action.
-        if (typeof event.target[event.type] === 'function') {
-          event.target[event.type]();
-        }
-        // Re-enables event dispatching.
-        targetData.disabled = false;
-      }
-    }
-
-    // Inform the triggerer if the default was prevented by returning false
-    return !event.defaultPrevented;
-  }
-
-  /**
-   * Trigger a listener only once for an event.
-   *
-   * @param {Element|Object} elem
-   *        Element or object to bind to.
-   *
-   * @param {string|string[]} type
-   *        Name/type of event
-   *
-   * @param {Event~EventListener} fn
-   *        Event listener function
-   */
-  function one(elem, type, fn) {
-    if (Array.isArray(type)) {
-      return _handleMultipleEvents(one, elem, type, fn);
-    }
-    const func = function () {
-      off(elem, type, func);
-      fn.apply(this, arguments);
-    };
-
-    // copy the guid to the new function so it can removed using the original function's ID
-    func.guid = fn.guid = fn.guid || newGUID();
-    on(elem, type, func);
-  }
-
-  /**
-   * Trigger a listener only once and then turn if off for all
-   * configured events
-   *
-   * @param {Element|Object} elem
-   *        Element or object to bind to.
-   *
-   * @param {string|string[]} type
-   *        Name/type of event
-   *
-   * @param {Event~EventListener} fn
-   *        Event listener function
-   */
-  function any(elem, type, fn) {
-    const func = function () {
-      off(elem, type, func);
-      fn.apply(this, arguments);
-    };
-
-    // copy the guid to the new function so it can removed using the original function's ID
-    func.guid = fn.guid = fn.guid || newGUID();
-
-    // multiple ons, but one off for everything
-    on(elem, type, func);
-  }
-
-  var Events = /*#__PURE__*/Object.freeze({
-    __proto__: null,
-    fixEvent: fixEvent,
-    on: on,
-    off: off,
-    trigger: trigger,
-    one: one,
-    any: any
-  });
-
-  /**
-   * @file fn.js
-   * @module fn
-   */
-  const UPDATE_REFRESH_INTERVAL = 30;
-
-  /**
-   * A private, internal-only function for changing the context of a function.
-   *
-   * It also stores a unique id on the function so it can be easily removed from
-   * events.
-   *
-   * @private
-   * @function
-   * @param    {*} context
-   *           The object to bind as scope.
-   *
-   * @param    {Function} fn
-   *           The function to be bound to a scope.
-   *
-   * @param    {number} [uid]
-   *           An optional unique ID for the function to be set
-   *
-   * @return   {Function}
-   *           The new function that will be bound into the context given
-   */
-  const bind_ = function (context, fn, uid) {
-    // Make sure the function has a unique ID
-    if (!fn.guid) {
-      fn.guid = newGUID();
-    }
-
-    // Create the new function that changes the context
-    const bound = fn.bind(context);
-
-    // Allow for the ability to individualize this function
-    // Needed in the case where multiple objects might share the same prototype
-    // IF both items add an event listener with the same function, then you try to remove just one
-    // it will remove both because they both have the same guid.
-    // when using this, you need to use the bind method when you remove the listener as well.
-    // currently used in text tracks
-    bound.guid = uid ? uid + '_' + fn.guid : fn.guid;
-    return bound;
-  };
-
-  /**
-   * Wraps the given function, `fn`, with a new function that only invokes `fn`
-   * at most once per every `wait` milliseconds.
-   *
-   * @function
-   * @param    {Function} fn
-   *           The function to be throttled.
-   *
-   * @param    {number}   wait
-   *           The number of milliseconds by which to throttle.
-   *
-   * @return   {Function}
-   */
-  const throttle = function (fn, wait) {
-    let last = window.performance.now();
-    const throttled = function (...args) {
-      const now = window.performance.now();
-      if (now - last >= wait) {
-        fn(...args);
-        last = now;
-      }
-    };
-    return throttled;
-  };
-
-  /**
-   * Creates a debounced function that delays invoking `func` until after `wait`
-   * milliseconds have elapsed since the last time the debounced function was
-   * invoked.
-   *
-   * Inspired by lodash and underscore implementations.
-   *
-   * @function
-   * @param    {Function} func
-   *           The function to wrap with debounce behavior.
-   *
-   * @param    {number} wait
-   *           The number of milliseconds to wait after the last invocation.
-   *
-   * @param    {boolean} [immediate]
-   *           Whether or not to invoke the function immediately upon creation.
-   *
-   * @param    {Object} [context=window]
-   *           The "context" in which the debounced function should debounce. For
-   *           example, if this function should be tied to a Video.js player,
-   *           the player can be passed here. Alternatively, defaults to the
-   *           global `window` object.
-   *
-   * @return   {Function}
-   *           A debounced function.
-   */
-  const debounce = function (func, wait, immediate, context = window) {
-    let timeout;
-    const cancel = () => {
-      context.clearTimeout(timeout);
-      timeout = null;
-    };
-
-    /* eslint-disable consistent-this */
-    const debounced = function () {
-      const self = this;
-      const args = arguments;
-      let later = function () {
-        timeout = null;
-        later = null;
-        if (!immediate) {
-          func.apply(self, args);
-        }
-      };
-      if (!timeout && immediate) {
-        func.apply(self, args);
-      }
-      context.clearTimeout(timeout);
-      timeout = context.setTimeout(later, wait);
-    };
-    /* eslint-enable consistent-this */
-
-    debounced.cancel = cancel;
-    return debounced;
-  };
-
-  var Fn = /*#__PURE__*/Object.freeze({
-    __proto__: null,
-    UPDATE_REFRESH_INTERVAL: UPDATE_REFRESH_INTERVAL,
-    bind_: bind_,
-    throttle: throttle,
-    debounce: debounce
-  });
-
-  /**
-   * @file src/js/event-target.js
-   */
-  let EVENT_MAP;
-
-  /**
-   * `EventTarget` is a class that can have the same API as the DOM `EventTarget`. It
-   * adds shorthand functions that wrap around lengthy functions. For example:
-   * the `on` function is a wrapper around `addEventListener`.
-   *
-   * @see [EventTarget Spec]{@link https://www.w3.org/TR/DOM-Level-2-Events/events.html#Events-EventTarget}
-   * @class EventTarget
-   */
-  class EventTarget$2 {
-    /**
-     * Adds an `event listener` to an instance of an `EventTarget`. An `event listener` is a
-     * function that will get called when an event with a certain name gets triggered.
-     *
-     * @param {string|string[]} type
-     *        An event name or an array of event names.
-     *
-     * @param {Function} fn
-     *        The function to call with `EventTarget`s
-     */
-    on(type, fn) {
-      // Remove the addEventListener alias before calling Events.on
-      // so we don't get into an infinite type loop
-      const ael = this.addEventListener;
-      this.addEventListener = () => {};
-      on(this, type, fn);
-      this.addEventListener = ael;
-    }
-    /**
-     * Removes an `event listener` for a specific event from an instance of `EventTarget`.
-     * This makes it so that the `event listener` will no longer get called when the
-     * named event happens.
-     *
-     * @param {string|string[]} type
-     *        An event name or an array of event names.
-     *
-     * @param {Function} fn
-     *        The function to remove.
-     */
-    off(type, fn) {
-      off(this, type, fn);
-    }
-    /**
-     * This function will add an `event listener` that gets triggered only once. After the
-     * first trigger it will get removed. This is like adding an `event listener`
-     * with {@link EventTarget#on} that calls {@link EventTarget#off} on itself.
-     *
-     * @param {string|string[]} type
-     *        An event name or an array of event names.
-     *
-     * @param {Function} fn
-     *        The function to be called once for each event name.
-     */
-    one(type, fn) {
-      // Remove the addEventListener aliasing Events.on
-      // so we don't get into an infinite type loop
-      const ael = this.addEventListener;
-      this.addEventListener = () => {};
-      one(this, type, fn);
-      this.addEventListener = ael;
-    }
-    /**
-     * This function will add an `event listener` that gets triggered only once and is
-     * removed from all events. This is like adding an array of `event listener`s
-     * with {@link EventTarget#on} that calls {@link EventTarget#off} on all events the
-     * first time it is triggered.
-     *
-     * @param {string|string[]} type
-     *        An event name or an array of event names.
-     *
-     * @param {Function} fn
-     *        The function to be called once for each event name.
-     */
-    any(type, fn) {
-      // Remove the addEventListener aliasing Events.on
-      // so we don't get into an infinite type loop
-      const ael = this.addEventListener;
-      this.addEventListener = () => {};
-      any(this, type, fn);
-      this.addEventListener = ael;
-    }
-    /**
-     * This function causes an event to happen. This will then cause any `event listeners`
-     * that are waiting for that event, to get called. If there are no `event listeners`
-     * for an event then nothing will happen.
-     *
-     * If the name of the `Event` that is being triggered is in `EventTarget.allowedEvents_`.
-     * Trigger will also call the `on` + `uppercaseEventName` function.
-     *
-     * Example:
-     * 'click' is in `EventTarget.allowedEvents_`, so, trigger will attempt to call
-     * `onClick` if it exists.
-     *
-     * @param {string|EventTarget~Event|Object} event
-     *        The name of the event, an `Event`, or an object with a key of type set to
-     *        an event name.
-     */
-    trigger(event) {
-      const type = event.type || event;
-
-      // deprecation
-      // In a future version we should default target to `this`
-      // similar to how we default the target to `elem` in
-      // `Events.trigger`. Right now the default `target` will be
-      // `document` due to the `Event.fixEvent` call.
-      if (typeof event === 'string') {
-        event = {
-          type
-        };
-      }
-      event = fixEvent(event);
-      if (this.allowedEvents_[type] && this['on' + type]) {
-        this['on' + type](event);
-      }
-      trigger(this, event);
-    }
-    queueTrigger(event) {
-      // only set up EVENT_MAP if it'll be used
-      if (!EVENT_MAP) {
-        EVENT_MAP = new Map();
-      }
-      const type = event.type || event;
-      let map = EVENT_MAP.get(this);
-      if (!map) {
-        map = new Map();
-        EVENT_MAP.set(this, map);
-      }
-      const oldTimeout = map.get(type);
-      map.delete(type);
-      window.clearTimeout(oldTimeout);
-      const timeout = window.setTimeout(() => {
-        map.delete(type);
-        // if we cleared out all timeouts for the current target, delete its map
-        if (map.size === 0) {
-          map = null;
-          EVENT_MAP.delete(this);
-        }
-        this.trigger(event);
-      }, 0);
-      map.set(type, timeout);
-    }
-  }
-
-  /**
-   * A Custom DOM event.
-   *
-   * @typedef {CustomEvent} Event
-   * @see [Properties]{@link https://developer.mozilla.org/en-US/docs/Web/API/CustomEvent}
-   */
-
-  /**
-   * All event listeners should follow the following format.
-   *
-   * @callback EventListener
-   * @this {EventTarget}
-   *
-   * @param {Event} event
-   *        the event that triggered this function
-   *
-   * @param {Object} [hash]
-   *        hash of data sent during the event
-   */
-
-  /**
-   * An object containing event names as keys and booleans as values.
-   *
-   * > NOTE: If an event name is set to a true value here {@link EventTarget#trigger}
-   *         will have extra functionality. See that function for more information.
-   *
-   * @property EventTarget.prototype.allowedEvents_
-   * @protected
-   */
-  EventTarget$2.prototype.allowedEvents_ = {};
-
-  /**
-   * An alias of {@link EventTarget#on}. Allows `EventTarget` to mimic
-   * the standard DOM API.
-   *
-   * @function
-   * @see {@link EventTarget#on}
-   */
-  EventTarget$2.prototype.addEventListener = EventTarget$2.prototype.on;
-
-  /**
-   * An alias of {@link EventTarget#off}. Allows `EventTarget` to mimic
-   * the standard DOM API.
-   *
-   * @function
-   * @see {@link EventTarget#off}
-   */
-  EventTarget$2.prototype.removeEventListener = EventTarget$2.prototype.off;
-
-  /**
-   * An alias of {@link EventTarget#trigger}. Allows `EventTarget` to mimic
-   * the standard DOM API.
-   *
-   * @function
-   * @see {@link EventTarget#trigger}
-   */
-  EventTarget$2.prototype.dispatchEvent = EventTarget$2.prototype.trigger;
-
-  /**
-   * @file mixins/evented.js
-   * @module evented
-   */
-  const objName = obj => {
-    if (typeof obj.name === 'function') {
-      return obj.name();
-    }
-    if (typeof obj.name === 'string') {
-      return obj.name;
-    }
-    if (obj.name_) {
-      return obj.name_;
-    }
-    if (obj.constructor && obj.constructor.name) {
-      return obj.constructor.name;
-    }
-    return typeof obj;
-  };
-
-  /**
-   * Returns whether or not an object has had the evented mixin applied.
-   *
-   * @param  {Object} object
-   *         An object to test.
-   *
-   * @return {boolean}
-   *         Whether or not the object appears to be evented.
-   */
-  const isEvented = object => object instanceof EventTarget$2 || !!object.eventBusEl_ && ['on', 'one', 'off', 'trigger'].every(k => typeof object[k] === 'function');
-
-  /**
-   * Adds a callback to run after the evented mixin applied.
-   *
-   * @param  {Object} target
-   *         An object to Add
-   * @param  {Function} callback
-   *         The callback to run.
-   */
-  const addEventedCallback = (target, callback) => {
-    if (isEvented(target)) {
-      callback();
-    } else {
-      if (!target.eventedCallbacks) {
-        target.eventedCallbacks = [];
-      }
-      target.eventedCallbacks.push(callback);
-    }
-  };
-
-  /**
-   * Whether a value is a valid event type - non-empty string or array.
-   *
-   * @private
-   * @param  {string|Array} type
-   *         The type value to test.
-   *
-   * @return {boolean}
-   *         Whether or not the type is a valid event type.
-   */
-  const isValidEventType = type =>
-  // The regex here verifies that the `type` contains at least one non-
-  // whitespace character.
-  typeof type === 'string' && /\S/.test(type) || Array.isArray(type) && !!type.length;
-
-  /**
-   * Validates a value to determine if it is a valid event target. Throws if not.
-   *
-   * @private
-   * @throws {Error}
-   *         If the target does not appear to be a valid event target.
-   *
-   * @param  {Object} target
-   *         The object to test.
-   *
-   * @param  {Object} obj
-   *         The evented object we are validating for
-   *
-   * @param  {string} fnName
-   *         The name of the evented mixin function that called this.
-   */
-  const validateTarget = (target, obj, fnName) => {
-    if (!target || !target.nodeName && !isEvented(target)) {
-      throw new Error(`Invalid target for ${objName(obj)}#${fnName}; must be a DOM node or evented object.`);
-    }
-  };
-
-  /**
-   * Validates a value to determine if it is a valid event target. Throws if not.
-   *
-   * @private
-   * @throws {Error}
-   *         If the type does not appear to be a valid event type.
-   *
-   * @param  {string|Array} type
-   *         The type to test.
-   *
-   * @param  {Object} obj
-  *         The evented object we are validating for
-   *
-   * @param  {string} fnName
-   *         The name of the evented mixin function that called this.
-   */
-  const validateEventType = (type, obj, fnName) => {
-    if (!isValidEventType(type)) {
-      throw new Error(`Invalid event type for ${objName(obj)}#${fnName}; must be a non-empty string or array.`);
-    }
-  };
-
-  /**
-   * Validates a value to determine if it is a valid listener. Throws if not.
-   *
-   * @private
-   * @throws {Error}
-   *         If the listener is not a function.
-   *
-   * @param  {Function} listener
-   *         The listener to test.
-   *
-   * @param  {Object} obj
-   *         The evented object we are validating for
-   *
-   * @param  {string} fnName
-   *         The name of the evented mixin function that called this.
-   */
-  const validateListener = (listener, obj, fnName) => {
-    if (typeof listener !== 'function') {
-      throw new Error(`Invalid listener for ${objName(obj)}#${fnName}; must be a function.`);
-    }
-  };
-
-  /**
-   * Takes an array of arguments given to `on()` or `one()`, validates them, and
-   * normalizes them into an object.
-   *
-   * @private
-   * @param  {Object} self
-   *         The evented object on which `on()` or `one()` was called. This
-   *         object will be bound as the `this` value for the listener.
-   *
-   * @param  {Array} args
-   *         An array of arguments passed to `on()` or `one()`.
-   *
-   * @param  {string} fnName
-   *         The name of the evented mixin function that called this.
-   *
-   * @return {Object}
-   *         An object containing useful values for `on()` or `one()` calls.
-   */
-  const normalizeListenArgs = (self, args, fnName) => {
-    // If the number of arguments is less than 3, the target is always the
-    // evented object itself.
-    const isTargetingSelf = args.length < 3 || args[0] === self || args[0] === self.eventBusEl_;
-    let target;
-    let type;
-    let listener;
-    if (isTargetingSelf) {
-      target = self.eventBusEl_;
-
-      // Deal with cases where we got 3 arguments, but we are still listening to
-      // the evented object itself.
-      if (args.length >= 3) {
-        args.shift();
-      }
-      [type, listener] = args;
-    } else {
-      [target, type, listener] = args;
-    }
-    validateTarget(target, self, fnName);
-    validateEventType(type, self, fnName);
-    validateListener(listener, self, fnName);
-    listener = bind_(self, listener);
-    return {
-      isTargetingSelf,
-      target,
-      type,
-      listener
-    };
-  };
-
-  /**
-   * Adds the listener to the event type(s) on the target, normalizing for
-   * the type of target.
-   *
-   * @private
-   * @param  {Element|Object} target
-   *         A DOM node or evented object.
-   *
-   * @param  {string} method
-   *         The event binding method to use ("on" or "one").
-   *
-   * @param  {string|Array} type
-   *         One or more event type(s).
-   *
-   * @param  {Function} listener
-   *         A listener function.
-   */
-  const listen = (target, method, type, listener) => {
-    validateTarget(target, target, method);
-    if (target.nodeName) {
-      Events[method](target, type, listener);
-    } else {
-      target[method](type, listener);
-    }
-  };
-
-  /**
-   * Contains methods that provide event capabilities to an object which is passed
-   * to {@link module:evented|evented}.
-   *
-   * @mixin EventedMixin
-   */
-  const EventedMixin = {
-    /**
-     * Add a listener to an event (or events) on this object or another evented
-     * object.
-     *
-     * @param  {string|Array|Element|Object} targetOrType
-     *         If this is a string or array, it represents the event type(s)
-     *         that will trigger the listener.
-     *
-     *         Another evented object can be passed here instead, which will
-     *         cause the listener to listen for events on _that_ object.
-     *
-     *         In either case, the listener's `this` value will be bound to
-     *         this object.
-     *
-     * @param  {string|Array|Function} typeOrListener
-     *         If the first argument was a string or array, this should be the
-     *         listener function. Otherwise, this is a string or array of event
-     *         type(s).
-     *
-     * @param  {Function} [listener]
-     *         If the first argument was another evented object, this will be
-     *         the listener function.
-     */
-    on(...args) {
-      const {
-        isTargetingSelf,
-        target,
-        type,
-        listener
-      } = normalizeListenArgs(this, args, 'on');
-      listen(target, 'on', type, listener);
-
-      // If this object is listening to another evented object.
-      if (!isTargetingSelf) {
-        // If this object is disposed, remove the listener.
-        const removeListenerOnDispose = () => this.off(target, type, listener);
-
-        // Use the same function ID as the listener so we can remove it later it
-        // using the ID of the original listener.
-        removeListenerOnDispose.guid = listener.guid;
-
-        // Add a listener to the target's dispose event as well. This ensures
-        // that if the target is disposed BEFORE this object, we remove the
-        // removal listener that was just added. Otherwise, we create a memory leak.
-        const removeRemoverOnTargetDispose = () => this.off('dispose', removeListenerOnDispose);
-
-        // Use the same function ID as the listener so we can remove it later
-        // it using the ID of the original listener.
-        removeRemoverOnTargetDispose.guid = listener.guid;
-        listen(this, 'on', 'dispose', removeListenerOnDispose);
-        listen(target, 'on', 'dispose', removeRemoverOnTargetDispose);
-      }
-    },
-    /**
-     * Add a listener to an event (or events) on this object or another evented
-     * object. The listener will be called once per event and then removed.
-     *
-     * @param  {string|Array|Element|Object} targetOrType
-     *         If this is a string or array, it represents the event type(s)
-     *         that will trigger the listener.
-     *
-     *         Another evented object can be passed here instead, which will
-     *         cause the listener to listen for events on _that_ object.
-     *
-     *         In either case, the listener's `this` value will be bound to
-     *         this object.
-     *
-     * @param  {string|Array|Function} typeOrListener
-     *         If the first argument was a string or array, this should be the
-     *         listener function. Otherwise, this is a string or array of event
-     *         type(s).
-     *
-     * @param  {Function} [listener]
-     *         If the first argument was another evented object, this will be
-     *         the listener function.
-     */
-    one(...args) {
-      const {
-        isTargetingSelf,
-        target,
-        type,
-        listener
-      } = normalizeListenArgs(this, args, 'one');
-
-      // Targeting this evented object.
-      if (isTargetingSelf) {
-        listen(target, 'one', type, listener);
-
-        // Targeting another evented object.
-      } else {
-        // TODO: This wrapper is incorrect! It should only
-        //       remove the wrapper for the event type that called it.
-        //       Instead all listeners are removed on the first trigger!
-        //       see https://github.com/videojs/video.js/issues/5962
-        const wrapper = (...largs) => {
-          this.off(target, type, wrapper);
-          listener.apply(null, largs);
-        };
-
-        // Use the same function ID as the listener so we can remove it later
-        // it using the ID of the original listener.
-        wrapper.guid = listener.guid;
-        listen(target, 'one', type, wrapper);
-      }
-    },
-    /**
-     * Add a listener to an event (or events) on this object or another evented
-     * object. The listener will only be called once for the first event that is triggered
-     * then removed.
-     *
-     * @param  {string|Array|Element|Object} targetOrType
-     *         If this is a string or array, it represents the event type(s)
-     *         that will trigger the listener.
-     *
-     *         Another evented object can be passed here instead, which will
-     *         cause the listener to listen for events on _that_ object.
-     *
-     *         In either case, the listener's `this` value will be bound to
-     *         this object.
-     *
-     * @param  {string|Array|Function} typeOrListener
-     *         If the first argument was a string or array, this should be the
-     *         listener function. Otherwise, this is a string or array of event
-     *         type(s).
-     *
-     * @param  {Function} [listener]
-     *         If the first argument was another evented object, this will be
-     *         the listener function.
-     */
-    any(...args) {
-      const {
-        isTargetingSelf,
-        target,
-        type,
-        listener
-      } = normalizeListenArgs(this, args, 'any');
-
-      // Targeting this evented object.
-      if (isTargetingSelf) {
-        listen(target, 'any', type, listener);
-
-        // Targeting another evented object.
-      } else {
-        const wrapper = (...largs) => {
-          this.off(target, type, wrapper);
-          listener.apply(null, largs);
-        };
-
-        // Use the same function ID as the listener so we can remove it later
-        // it using the ID of the original listener.
-        wrapper.guid = listener.guid;
-        listen(target, 'any', type, wrapper);
-      }
-    },
-    /**
-     * Removes listener(s) from event(s) on an evented object.
-     *
-     * @param  {string|Array|Element|Object} [targetOrType]
-     *         If this is a string or array, it represents the event type(s).
-     *
-     *         Another evented object can be passed here instead, in which case
-     *         ALL 3 arguments are _required_.
-     *
-     * @param  {string|Array|Function} [typeOrListener]
-     *         If the first argument was a string or array, this may be the
-     *         listener function. Otherwise, this is a string or array of event
-     *         type(s).
-     *
-     * @param  {Function} [listener]
-     *         If the first argument was another evented object, this will be
-     *         the listener function; otherwise, _all_ listeners bound to the
-     *         event type(s) will be removed.
-     */
-    off(targetOrType, typeOrListener, listener) {
-      // Targeting this evented object.
-      if (!targetOrType || isValidEventType(targetOrType)) {
-        off(this.eventBusEl_, targetOrType, typeOrListener);
-
-        // Targeting another evented object.
-      } else {
-        const target = targetOrType;
-        const type = typeOrListener;
-
-        // Fail fast and in a meaningful way!
-        validateTarget(target, this, 'off');
-        validateEventType(type, this, 'off');
-        validateListener(listener, this, 'off');
-
-        // Ensure there's at least a guid, even if the function hasn't been used
-        listener = bind_(this, listener);
-
-        // Remove the dispose listener on this evented object, which was given
-        // the same guid as the event listener in on().
-        this.off('dispose', listener);
-        if (target.nodeName) {
-          off(target, type, listener);
-          off(target, 'dispose', listener);
-        } else if (isEvented(target)) {
-          target.off(type, listener);
-          target.off('dispose', listener);
-        }
-      }
-    },
-    /**
-     * Fire an event on this evented object, causing its listeners to be called.
-     *
-     * @param   {string|Object} event
-     *          An event type or an object with a type property.
-     *
-     * @param   {Object} [hash]
-     *          An additional object to pass along to listeners.
-     *
-     * @return {boolean}
-     *          Whether or not the default behavior was prevented.
-     */
-    trigger(event, hash) {
-      validateTarget(this.eventBusEl_, this, 'trigger');
-      const type = event && typeof event !== 'string' ? event.type : event;
-      if (!isValidEventType(type)) {
-        throw new Error(`Invalid event type for ${objName(this)}#trigger; ` + 'must be a non-empty string or object with a type key that has a non-empty value.');
-      }
-      return trigger(this.eventBusEl_, event, hash);
-    }
-  };
-
-  /**
-   * Applies {@link module:evented~EventedMixin|EventedMixin} to a target object.
-   *
-   * @param  {Object} target
-   *         The object to which to add event methods.
-   *
-   * @param  {Object} [options={}]
-   *         Options for customizing the mixin behavior.
-   *
-   * @param  {string} [options.eventBusKey]
-   *         By default, adds a `eventBusEl_` DOM element to the target object,
-   *         which is used as an event bus. If the target object already has a
-   *         DOM element that should be used, pass its key here.
-   *
-   * @return {Object}
-   *         The target object.
-   */
-  function evented(target, options = {}) {
-    const {
-      eventBusKey
-    } = options;
-
-    // Set or create the eventBusEl_.
-    if (eventBusKey) {
-      if (!target[eventBusKey].nodeName) {
-        throw new Error(`The eventBusKey "${eventBusKey}" does not refer to an element.`);
-      }
-      target.eventBusEl_ = target[eventBusKey];
-    } else {
-      target.eventBusEl_ = createEl('span', {
-        className: 'vjs-event-bus'
-      });
-    }
-    Object.assign(target, EventedMixin);
-    if (target.eventedCallbacks) {
-      target.eventedCallbacks.forEach(callback => {
-        callback();
-      });
-    }
-
-    // When any evented object is disposed, it removes all its listeners.
-    target.on('dispose', () => {
-      target.off();
-      [target, target.el_, target.eventBusEl_].forEach(function (val) {
-        if (val && DomData.has(val)) {
-          DomData.delete(val);
-        }
-      });
-      window.setTimeout(() => {
-        target.eventBusEl_ = null;
-      }, 0);
-    });
-    return target;
-  }
-
-  /**
-   * @file mixins/stateful.js
-   * @module stateful
-   */
-
-  /**
-   * Contains methods that provide statefulness to an object which is passed
-   * to {@link module:stateful}.
-   *
-   * @mixin StatefulMixin
-   */
-  const StatefulMixin = {
-    /**
-     * A hash containing arbitrary keys and values representing the state of
-     * the object.
-     *
-     * @type {Object}
-     */
-    state: {},
-    /**
-     * Set the state of an object by mutating its
-     * {@link module:stateful~StatefulMixin.state|state} object in place.
-     *
-     * @fires   module:stateful~StatefulMixin#statechanged
-     * @param   {Object|Function} stateUpdates
-     *          A new set of properties to shallow-merge into the plugin state.
-     *          Can be a plain object or a function returning a plain object.
-     *
-     * @return {Object|undefined}
-     *          An object containing changes that occurred. If no changes
-     *          occurred, returns `undefined`.
-     */
-    setState(stateUpdates) {
-      // Support providing the `stateUpdates` state as a function.
-      if (typeof stateUpdates === 'function') {
-        stateUpdates = stateUpdates();
-      }
-      let changes;
-      each(stateUpdates, (value, key) => {
-        // Record the change if the value is different from what's in the
-        // current state.
-        if (this.state[key] !== value) {
-          changes = changes || {};
-          changes[key] = {
-            from: this.state[key],
-            to: value
-          };
-        }
-        this.state[key] = value;
-      });
-
-      // Only trigger "statechange" if there were changes AND we have a trigger
-      // function. This allows us to not require that the target object be an
-      // evented object.
-      if (changes && isEvented(this)) {
-        /**
-         * An event triggered on an object that is both
-         * {@link module:stateful|stateful} and {@link module:evented|evented}
-         * indicating that its state has changed.
-         *
-         * @event    module:stateful~StatefulMixin#statechanged
-         * @type     {Object}
-         * @property {Object} changes
-         *           A hash containing the properties that were changed and
-         *           the values they were changed `from` and `to`.
-         */
-        this.trigger({
-          changes,
-          type: 'statechanged'
-        });
-      }
-      return changes;
-    }
-  };
-
-  /**
-   * Applies {@link module:stateful~StatefulMixin|StatefulMixin} to a target
-   * object.
-   *
-   * If the target object is {@link module:evented|evented} and has a
-   * `handleStateChanged` method, that method will be automatically bound to the
-   * `statechanged` event on itself.
-   *
-   * @param   {Object} target
-   *          The object to be made stateful.
-   *
-   * @param   {Object} [defaultState]
-   *          A default set of properties to populate the newly-stateful object's
-   *          `state` property.
-   *
-   * @return {Object}
-   *          Returns the `target`.
-   */
-  function stateful(target, defaultState) {
-    Object.assign(target, StatefulMixin);
-
-    // This happens after the mixing-in because we need to replace the `state`
-    // added in that step.
-    target.state = Object.assign({}, target.state, defaultState);
-
-    // Auto-bind the `handleStateChanged` method of the target object if it exists.
-    if (typeof target.handleStateChanged === 'function' && isEvented(target)) {
-      target.on('statechanged', target.handleStateChanged);
-    }
-    return target;
-  }
-
-  /**
-   * @file str.js
-   * @module to-lower-case
-   */
-
-  /**
-   * Lowercase the first letter of a string.
-   *
-   * @param {string} string
-   *        String to be lowercased
-   *
-   * @return {string}
-   *         The string with a lowercased first letter
-   */
-  const toLowerCase = function (string) {
-    if (typeof string !== 'string') {
-      return string;
-    }
-    return string.replace(/./, w => w.toLowerCase());
-  };
-
-  /**
-   * Uppercase the first letter of a string.
-   *
-   * @param {string} string
-   *        String to be uppercased
-   *
-   * @return {string}
-   *         The string with an uppercased first letter
-   */
-  const toTitleCase$1 = function (string) {
-    if (typeof string !== 'string') {
-      return string;
-    }
-    return string.replace(/./, w => w.toUpperCase());
-  };
-
-  /**
-   * Compares the TitleCase versions of the two strings for equality.
-   *
-   * @param {string} str1
-   *        The first string to compare
-   *
-   * @param {string} str2
-   *        The second string to compare
-   *
-   * @return {boolean}
-   *         Whether the TitleCase versions of the strings are equal
-   */
-  const titleCaseEquals = function (str1, str2) {
-    return toTitleCase$1(str1) === toTitleCase$1(str2);
-  };
-
-  var Str = /*#__PURE__*/Object.freeze({
-    __proto__: null,
-    toLowerCase: toLowerCase,
-    toTitleCase: toTitleCase$1,
-    titleCaseEquals: titleCaseEquals
-  });
-
-  var commonjsGlobal = typeof globalThis !== 'undefined' ? globalThis : typeof window !== 'undefined' ? window : typeof global !== 'undefined' ? global : typeof self !== 'undefined' ? self : {};
-
-  function unwrapExports (x) {
-  	return x && x.__esModule && Object.prototype.hasOwnProperty.call(x, 'default') ? x['default'] : x;
-  }
-
-  function createCommonjsModule(fn, module) {
-  	return module = { exports: {} }, fn(module, module.exports), module.exports;
-  }
-
-  var keycode = createCommonjsModule(function (module, exports) {
-    // Source: http://jsfiddle.net/vWx8V/
-    // http://stackoverflow.com/questions/5603195/full-list-of-javascript-keycodes
-
-    /**
-     * Conenience method returns corresponding value for given keyName or keyCode.
-     *
-     * @param {Mixed} keyCode {Number} or keyName {String}
-     * @return {Mixed}
-     * @api public
-     */
-
-    function keyCode(searchInput) {
-      // Keyboard Events
-      if (searchInput && 'object' === typeof searchInput) {
-        var hasKeyCode = searchInput.which || searchInput.keyCode || searchInput.charCode;
-        if (hasKeyCode) searchInput = hasKeyCode;
-      }
-
-      // Numbers
-      if ('number' === typeof searchInput) return names[searchInput];
-
-      // Everything else (cast to string)
-      var search = String(searchInput);
-
-      // check codes
-      var foundNamedKey = codes[search.toLowerCase()];
-      if (foundNamedKey) return foundNamedKey;
-
-      // check aliases
-      var foundNamedKey = aliases[search.toLowerCase()];
-      if (foundNamedKey) return foundNamedKey;
-
-      // weird character?
-      if (search.length === 1) return search.charCodeAt(0);
-      return undefined;
-    }
-
-    /**
-     * Compares a keyboard event with a given keyCode or keyName.
-     *
-     * @param {Event} event Keyboard event that should be tested
-     * @param {Mixed} keyCode {Number} or keyName {String}
-     * @return {Boolean}
-     * @api public
-     */
-    keyCode.isEventKey = function isEventKey(event, nameOrCode) {
-      if (event && 'object' === typeof event) {
-        var keyCode = event.which || event.keyCode || event.charCode;
-        if (keyCode === null || keyCode === undefined) {
-          return false;
-        }
-        if (typeof nameOrCode === 'string') {
-          // check codes
-          var foundNamedKey = codes[nameOrCode.toLowerCase()];
-          if (foundNamedKey) {
-            return foundNamedKey === keyCode;
-          }
-
-          // check aliases
-          var foundNamedKey = aliases[nameOrCode.toLowerCase()];
-          if (foundNamedKey) {
-            return foundNamedKey === keyCode;
-          }
-        } else if (typeof nameOrCode === 'number') {
-          return nameOrCode === keyCode;
-        }
-        return false;
-      }
-    };
-    exports = module.exports = keyCode;
-
-    /**
-     * Get by name
-     *
-     *   exports.code['enter'] // => 13
-     */
-
-    var codes = exports.code = exports.codes = {
-      'backspace': 8,
-      'tab': 9,
-      'enter': 13,
-      'shift': 16,
-      'ctrl': 17,
-      'alt': 18,
-      'pause/break': 19,
-      'caps lock': 20,
-      'esc': 27,
-      'space': 32,
-      'page up': 33,
-      'page down': 34,
-      'end': 35,
-      'home': 36,
-      'left': 37,
-      'up': 38,
-      'right': 39,
-      'down': 40,
-      'insert': 45,
-      'delete': 46,
-      'command': 91,
-      'left command': 91,
-      'right command': 93,
-      'numpad *': 106,
-      'numpad +': 107,
-      'numpad -': 109,
-      'numpad .': 110,
-      'numpad /': 111,
-      'num lock': 144,
-      'scroll lock': 145,
-      'my computer': 182,
-      'my calculator': 183,
-      ';': 186,
-      '=': 187,
-      ',': 188,
-      '-': 189,
-      '.': 190,
-      '/': 191,
-      '`': 192,
-      '[': 219,
-      '\\': 220,
-      ']': 221,
-      "'": 222
-    };
-
-    // Helper aliases
-
-    var aliases = exports.aliases = {
-      'windows': 91,
-      '⇧': 16,
-      '⌥': 18,
-      '⌃': 17,
-      '⌘': 91,
-      'ctl': 17,
-      'control': 17,
-      'option': 18,
-      'pause': 19,
-      'break': 19,
-      'caps': 20,
-      'return': 13,
-      'escape': 27,
-      'spc': 32,
-      'spacebar': 32,
-      'pgup': 33,
-      'pgdn': 34,
-      'ins': 45,
-      'del': 46,
-      'cmd': 91
-    };
-
-    /*!
-     * Programatically add the following
-     */
-
-    // lower case chars
-    for (i = 97; i < 123; i++) codes[String.fromCharCode(i)] = i - 32;
-
-    // numbers
-    for (var i = 48; i < 58; i++) codes[i - 48] = i;
-
-    // function keys
-    for (i = 1; i < 13; i++) codes['f' + i] = i + 111;
-
-    // numpad keys
-    for (i = 0; i < 10; i++) codes['numpad ' + i] = i + 96;
-
-    /**
-     * Get by code
-     *
-     *   exports.name[13] // => 'Enter'
-     */
-
-    var names = exports.names = exports.title = {}; // title for backward compat
-
-    // Create reverse mapping
-    for (i in codes) names[codes[i]] = i;
-
-    // Add aliases
-    for (var alias in aliases) {
-      codes[alias] = aliases[alias];
-    }
-  });
-  keycode.code;
-  keycode.codes;
-  keycode.aliases;
-  keycode.names;
-  keycode.title;
-
-  /**
-   * Player Component - Base class for all UI objects
-   *
-   * @file component.js
-   */
-
-  /**
-   * Base class for all UI Components.
-   * Components are UI objects which represent both a javascript object and an element
-   * in the DOM. They can be children of other components, and can have
-   * children themselves.
-   *
-   * Components can also use methods from {@link EventTarget}
-   */
-  class Component$1 {
-    /**
-     * A callback that is called when a component is ready. Does not have any
-     * parameters and any callback value will be ignored.
-     *
-     * @callback ReadyCallback
-     * @this Component
-     */
-
-    /**
-     * Creates an instance of this class.
-     *
-     * @param { import('./player').default } player
-     *        The `Player` that this class should be attached to.
-     *
-     * @param {Object} [options]
-     *        The key/value store of component options.
-     *
-     * @param {Object[]} [options.children]
-     *        An array of children objects to initialize this component with. Children objects have
-     *        a name property that will be used if more than one component of the same type needs to be
-     *        added.
-     *
-     * @param  {string} [options.className]
-     *         A class or space separated list of classes to add the component
-     *
-     * @param {ReadyCallback} [ready]
-     *        Function that gets called when the `Component` is ready.
-     */
-    constructor(player, options, ready) {
-      // The component might be the player itself and we can't pass `this` to super
-      if (!player && this.play) {
-        this.player_ = player = this; // eslint-disable-line
-      } else {
-        this.player_ = player;
-      }
-      this.isDisposed_ = false;
-
-      // Hold the reference to the parent component via `addChild` method
-      this.parentComponent_ = null;
-
-      // Make a copy of prototype.options_ to protect against overriding defaults
-      this.options_ = merge$2({}, this.options_);
-
-      // Updated options with supplied options
-      options = this.options_ = merge$2(this.options_, options);
-
-      // Get ID from options or options element if one is supplied
-      this.id_ = options.id || options.el && options.el.id;
-
-      // If there was no ID from the options, generate one
-      if (!this.id_) {
-        // Don't require the player ID function in the case of mock players
-        const id = player && player.id && player.id() || 'no_player';
-        this.id_ = `${id}_component_${newGUID()}`;
-      }
-      this.name_ = options.name || null;
-
-      // Create element if one wasn't provided in options
-      if (options.el) {
-        this.el_ = options.el;
-      } else if (options.createEl !== false) {
-        this.el_ = this.createEl();
-      }
-      if (options.className && this.el_) {
-        options.className.split(' ').forEach(c => this.addClass(c));
-      }
-
-      // Remove the placeholder event methods. If the component is evented, the
-      // real methods are added next
-      ['on', 'off', 'one', 'any', 'trigger'].forEach(fn => {
-        this[fn] = undefined;
-      });
-
-      // if evented is anything except false, we want to mixin in evented
-      if (options.evented !== false) {
-        // Make this an evented object and use `el_`, if available, as its event bus
-        evented(this, {
-          eventBusKey: this.el_ ? 'el_' : null
-        });
-        this.handleLanguagechange = this.handleLanguagechange.bind(this);
-        this.on(this.player_, 'languagechange', this.handleLanguagechange);
-      }
-      stateful(this, this.constructor.defaultState);
-      this.children_ = [];
-      this.childIndex_ = {};
-      this.childNameIndex_ = {};
-      this.setTimeoutIds_ = new Set();
-      this.setIntervalIds_ = new Set();
-      this.rafIds_ = new Set();
-      this.namedRafs_ = new Map();
-      this.clearingTimersOnDispose_ = false;
-
-      // Add any child components in options
-      if (options.initChildren !== false) {
-        this.initChildren();
-      }
-
-      // Don't want to trigger ready here or it will go before init is actually
-      // finished for all children that run this constructor
-      this.ready(ready);
-      if (options.reportTouchActivity !== false) {
-        this.enableTouchActivity();
-      }
-    }
-
-    // `on`, `off`, `one`, `any` and `trigger` are here so tsc includes them in definitions.
-    // They are replaced or removed in the constructor
-
-    /**
-     * Adds an `event listener` to an instance of an `EventTarget`. An `event listener` is a
-     * function that will get called when an event with a certain name gets triggered.
-     *
-     * @param {string|string[]} type
-     *        An event name or an array of event names.
-     *
-     * @param {Function} fn
-     *        The function to call with `EventTarget`s
-     */
-    on(type, fn) {}
-
-    /**
-     * Removes an `event listener` for a specific event from an instance of `EventTarget`.
-     * This makes it so that the `event listener` will no longer get called when the
-     * named event happens.
-     *
-     * @param {string|string[]} type
-     *        An event name or an array of event names.
-     *
-     * @param {Function} [fn]
-     *        The function to remove. If not specified, all listeners managed by Video.js will be removed.
-     */
-    off(type, fn) {}
-
-    /**
-     * This function will add an `event listener` that gets triggered only once. After the
-     * first trigger it will get removed. This is like adding an `event listener`
-     * with {@link EventTarget#on} that calls {@link EventTarget#off} on itself.
-     *
-     * @param {string|string[]} type
-     *        An event name or an array of event names.
-     *
-     * @param {Function} fn
-     *        The function to be called once for each event name.
-     */
-    one(type, fn) {}
-
-    /**
-     * This function will add an `event listener` that gets triggered only once and is
-     * removed from all events. This is like adding an array of `event listener`s
-     * with {@link EventTarget#on} that calls {@link EventTarget#off} on all events the
-     * first time it is triggered.
-     *
-     * @param {string|string[]} type
-     *        An event name or an array of event names.
-     *
-     * @param {Function} fn
-     *        The function to be called once for each event name.
-     */
-    any(type, fn) {}
-
-    /**
-     * This function causes an event to happen. This will then cause any `event listeners`
-     * that are waiting for that event, to get called. If there are no `event listeners`
-     * for an event then nothing will happen.
-     *
-     * If the name of the `Event` that is being triggered is in `EventTarget.allowedEvents_`.
-     * Trigger will also call the `on` + `uppercaseEventName` function.
-     *
-     * Example:
-     * 'click' is in `EventTarget.allowedEvents_`, so, trigger will attempt to call
-     * `onClick` if it exists.
-     *
-     * @param {string|Event|Object} event
-     *        The name of the event, an `Event`, or an object with a key of type set to
-     *        an event name.
-     *
-     * @param {Object} [hash]
-     *        Optionally extra argument to pass through to an event listener
-     */
-    trigger(event, hash) {}
-
-    /**
-     * Dispose of the `Component` and all child components.
-     *
-     * @fires Component#dispose
-     *
-     * @param {Object} options
-     * @param {Element} options.originalEl element with which to replace player element
-     */
-    dispose(options = {}) {
-      // Bail out if the component has already been disposed.
-      if (this.isDisposed_) {
-        return;
-      }
-      if (this.readyQueue_) {
-        this.readyQueue_.length = 0;
-      }
-
-      /**
-       * Triggered when a `Component` is disposed.
-       *
-       * @event Component#dispose
-       * @type {Event}
-       *
-       * @property {boolean} [bubbles=false]
-       *           set to false so that the dispose event does not
-       *           bubble up
-       */
-      this.trigger({
-        type: 'dispose',
-        bubbles: false
-      });
-      this.isDisposed_ = true;
-
-      // Dispose all children.
-      if (this.children_) {
-        for (let i = this.children_.length - 1; i >= 0; i--) {
-          if (this.children_[i].dispose) {
-            this.children_[i].dispose();
-          }
-        }
-      }
-
-      // Delete child references
-      this.children_ = null;
-      this.childIndex_ = null;
-      this.childNameIndex_ = null;
-      this.parentComponent_ = null;
-      if (this.el_) {
-        // Remove element from DOM
-        if (this.el_.parentNode) {
-          if (options.restoreEl) {
-            this.el_.parentNode.replaceChild(options.restoreEl, this.el_);
-          } else {
-            this.el_.parentNode.removeChild(this.el_);
-          }
-        }
-        this.el_ = null;
-      }
-
-      // remove reference to the player after disposing of the element
-      this.player_ = null;
-    }
-
-    /**
-     * Determine whether or not this component has been disposed.
-     *
-     * @return {boolean}
-     *         If the component has been disposed, will be `true`. Otherwise, `false`.
-     */
-    isDisposed() {
-      return Boolean(this.isDisposed_);
-    }
-
-    /**
-     * Return the {@link Player} that the `Component` has attached to.
-     *
-     * @return { import('./player').default }
-     *         The player that this `Component` has attached to.
-     */
-    player() {
-      return this.player_;
-    }
-
-    /**
-     * Deep merge of options objects with new options.
-     * > Note: When both `obj` and `options` contain properties whose values are objects.
-     *         The two properties get merged using {@link module:obj.merge}
-     *
-     * @param {Object} obj
-     *        The object that contains new options.
-     *
-     * @return {Object}
-     *         A new object of `this.options_` and `obj` merged together.
-     */
-    options(obj) {
-      if (!obj) {
-        return this.options_;
-      }
-      this.options_ = merge$2(this.options_, obj);
-      return this.options_;
-    }
-
-    /**
-     * Get the `Component`s DOM element
-     *
-     * @return {Element}
-     *         The DOM element for this `Component`.
-     */
-    el() {
-      return this.el_;
-    }
-
-    /**
-     * Create the `Component`s DOM element.
-     *
-     * @param {string} [tagName]
-     *        Element's DOM node type. e.g. 'div'
-     *
-     * @param {Object} [properties]
-     *        An object of properties that should be set.
-     *
-     * @param {Object} [attributes]
-     *        An object of attributes that should be set.
-     *
-     * @return {Element}
-     *         The element that gets created.
-     */
-    createEl(tagName, properties, attributes) {
-      return createEl(tagName, properties, attributes);
-    }
-
-    /**
-     * Localize a string given the string in english.
-     *
-     * If tokens are provided, it'll try and run a simple token replacement on the provided string.
-     * The tokens it looks for look like `{1}` with the index being 1-indexed into the tokens array.
-     *
-     * If a `defaultValue` is provided, it'll use that over `string`,
-     * if a value isn't found in provided language files.
-     * This is useful if you want to have a descriptive key for token replacement
-     * but have a succinct localized string and not require `en.json` to be included.
-     *
-     * Currently, it is used for the progress bar timing.
-     * ```js
-     * {
-     *   "progress bar timing: currentTime={1} duration={2}": "{1} of {2}"
-     * }
-     * ```
-     * It is then used like so:
-     * ```js
-     * this.localize('progress bar timing: currentTime={1} duration{2}',
-     *               [this.player_.currentTime(), this.player_.duration()],
-     *               '{1} of {2}');
-     * ```
-     *
-     * Which outputs something like: `01:23 of 24:56`.
-     *
-     *
-     * @param {string} string
-     *        The string to localize and the key to lookup in the language files.
-     * @param {string[]} [tokens]
-     *        If the current item has token replacements, provide the tokens here.
-     * @param {string} [defaultValue]
-     *        Defaults to `string`. Can be a default value to use for token replacement
-     *        if the lookup key is needed to be separate.
-     *
-     * @return {string}
-     *         The localized string or if no localization exists the english string.
-     */
-    localize(string, tokens, defaultValue = string) {
-      const code = this.player_.language && this.player_.language();
-      const languages = this.player_.languages && this.player_.languages();
-      const language = languages && languages[code];
-      const primaryCode = code && code.split('-')[0];
-      const primaryLang = languages && languages[primaryCode];
-      let localizedString = defaultValue;
-      if (language && language[string]) {
-        localizedString = language[string];
-      } else if (primaryLang && primaryLang[string]) {
-        localizedString = primaryLang[string];
-      }
-      if (tokens) {
-        localizedString = localizedString.replace(/\{(\d+)\}/g, function (match, index) {
-          const value = tokens[index - 1];
-          let ret = value;
-          if (typeof value === 'undefined') {
-            ret = match;
-          }
-          return ret;
-        });
-      }
-      return localizedString;
-    }
-
-    /**
-     * Handles language change for the player in components. Should be overridden by sub-components.
-     *
-     * @abstract
-     */
-    handleLanguagechange() {}
-
-    /**
-     * Return the `Component`s DOM element. This is where children get inserted.
-     * This will usually be the the same as the element returned in {@link Component#el}.
-     *
-     * @return {Element}
-     *         The content element for this `Component`.
-     */
-    contentEl() {
-      return this.contentEl_ || this.el_;
-    }
-
-    /**
-     * Get this `Component`s ID
-     *
-     * @return {string}
-     *         The id of this `Component`
-     */
-    id() {
-      return this.id_;
-    }
-
-    /**
-     * Get the `Component`s name. The name gets used to reference the `Component`
-     * and is set during registration.
-     *
-     * @return {string}
-     *         The name of this `Component`.
-     */
-    name() {
-      return this.name_;
-    }
-
-    /**
-     * Get an array of all child components
-     *
-     * @return {Array}
-     *         The children
-     */
-    children() {
-      return this.children_;
-    }
-
-    /**
-     * Returns the child `Component` with the given `id`.
-     *
-     * @param {string} id
-     *        The id of the child `Component` to get.
-     *
-     * @return {Component|undefined}
-     *         The child `Component` with the given `id` or undefined.
-     */
-    getChildById(id) {
-      return this.childIndex_[id];
-    }
-
-    /**
-     * Returns the child `Component` with the given `name`.
-     *
-     * @param {string} name
-     *        The name of the child `Component` to get.
-     *
-     * @return {Component|undefined}
-     *         The child `Component` with the given `name` or undefined.
-     */
-    getChild(name) {
-      if (!name) {
-        return;
-      }
-      return this.childNameIndex_[name];
-    }
-
-    /**
-     * Returns the descendant `Component` following the givent
-     * descendant `names`. For instance ['foo', 'bar', 'baz'] would
-     * try to get 'foo' on the current component, 'bar' on the 'foo'
-     * component and 'baz' on the 'bar' component and return undefined
-     * if any of those don't exist.
-     *
-     * @param {...string[]|...string} names
-     *        The name of the child `Component` to get.
-     *
-     * @return {Component|undefined}
-     *         The descendant `Component` following the given descendant
-     *         `names` or undefined.
-     */
-    getDescendant(...names) {
-      // flatten array argument into the main array
-      names = names.reduce((acc, n) => acc.concat(n), []);
-      let currentChild = this;
-      for (let i = 0; i < names.length; i++) {
-        currentChild = currentChild.getChild(names[i]);
-        if (!currentChild || !currentChild.getChild) {
-          return;
-        }
-      }
-      return currentChild;
-    }
-
-    /**
-     * Adds an SVG icon element to another element or component.
-     *
-     * @param {string} iconName
-     *        The name of icon. A list of all the icon names can be found at 'sandbox/svg-icons.html'
-     *
-     * @param {Element} [el=this.el()]
-     *        Element to set the title on. Defaults to the current Component's element.
-     *
-     * @return {Element}
-     *        The newly created icon element.
-     */
-    setIcon(iconName, el = this.el()) {
-      // TODO: In v9 of video.js, we will want to remove font icons entirely.
-      // This means this check, as well as the others throughout the code, and
-      // the unecessary CSS for font icons, will need to be removed.
-      // See https://github.com/videojs/video.js/pull/8260 as to which components
-      // need updating.
-      if (!this.player_.options_.experimentalSvgIcons) {
-        return;
-      }
-      const xmlnsURL = 'http://www.w3.org/2000/svg';
-
-      // The below creates an element in the format of:
-      // <span><svg><use>....</use></svg></span>
-      const iconContainer = createEl('span', {
-        className: 'vjs-icon-placeholder vjs-svg-icon'
-      }, {
-        'aria-hidden': 'true'
-      });
-      const svgEl = document.createElementNS(xmlnsURL, 'svg');
-      svgEl.setAttributeNS(null, 'viewBox', '0 0 512 512');
-      const useEl = document.createElementNS(xmlnsURL, 'use');
-      svgEl.appendChild(useEl);
-      useEl.setAttributeNS(null, 'href', `#vjs-icon-${iconName}`);
-      iconContainer.appendChild(svgEl);
-
-      // Replace a pre-existing icon if one exists.
-      if (this.iconIsSet_) {
-        el.replaceChild(iconContainer, el.querySelector('.vjs-icon-placeholder'));
-      } else {
-        el.appendChild(iconContainer);
-      }
-      this.iconIsSet_ = true;
-      return iconContainer;
-    }
-
-    /**
-     * Add a child `Component` inside the current `Component`.
-     *
-     * @param {string|Component} child
-     *        The name or instance of a child to add.
-     *
-     * @param {Object} [options={}]
-     *        The key/value store of options that will get passed to children of
-     *        the child.
-     *
-     * @param {number} [index=this.children_.length]
-     *        The index to attempt to add a child into.
-     *
-     *
-     * @return {Component}
-     *         The `Component` that gets added as a child. When using a string the
-     *         `Component` will get created by this process.
-     */
-    addChild(child, options = {}, index = this.children_.length) {
-      let component;
-      let componentName;
-
-      // If child is a string, create component with options
-      if (typeof child === 'string') {
-        componentName = toTitleCase$1(child);
-        const componentClassName = options.componentClass || componentName;
-
-        // Set name through options
-        options.name = componentName;
-
-        // Create a new object & element for this controls set
-        // If there's no .player_, this is a player
-        const ComponentClass = Component$1.getComponent(componentClassName);
-        if (!ComponentClass) {
-          throw new Error(`Component ${componentClassName} does not exist`);
-        }
-
-        // data stored directly on the videojs object may be
-        // misidentified as a component to retain
-        // backwards-compatibility with 4.x. check to make sure the
-        // component class can be instantiated.
-        if (typeof ComponentClass !== 'function') {
-          return null;
-        }
-        component = new ComponentClass(this.player_ || this, options);
-
-        // child is a component instance
-      } else {
-        component = child;
-      }
-      if (component.parentComponent_) {
-        component.parentComponent_.removeChild(component);
-      }
-      this.children_.splice(index, 0, component);
-      component.parentComponent_ = this;
-      if (typeof component.id === 'function') {
-        this.childIndex_[component.id()] = component;
-      }
-
-      // If a name wasn't used to create the component, check if we can use the
-      // name function of the component
-      componentName = componentName || component.name && toTitleCase$1(component.name());
-      if (componentName) {
-        this.childNameIndex_[componentName] = component;
-        this.childNameIndex_[toLowerCase(componentName)] = component;
-      }
-
-      // Add the UI object's element to the container div (box)
-      // Having an element is not required
-      if (typeof component.el === 'function' && component.el()) {
-        // If inserting before a component, insert before that component's element
-        let refNode = null;
-        if (this.children_[index + 1]) {
-          // Most children are components, but the video tech is an HTML element
-          if (this.children_[index + 1].el_) {
-            refNode = this.children_[index + 1].el_;
-          } else if (isEl(this.children_[index + 1])) {
-            refNode = this.children_[index + 1];
-          }
-        }
-        this.contentEl().insertBefore(component.el(), refNode);
-      }
-
-      // Return so it can stored on parent object if desired.
-      return component;
-    }
-
-    /**
-     * Remove a child `Component` from this `Component`s list of children. Also removes
-     * the child `Component`s element from this `Component`s element.
-     *
-     * @param {Component} component
-     *        The child `Component` to remove.
-     */
-    removeChild(component) {
-      if (typeof component === 'string') {
-        component = this.getChild(component);
-      }
-      if (!component || !this.children_) {
-        return;
-      }
-      let childFound = false;
-      for (let i = this.children_.length - 1; i >= 0; i--) {
-        if (this.children_[i] === component) {
-          childFound = true;
-          this.children_.splice(i, 1);
-          break;
-        }
-      }
-      if (!childFound) {
-        return;
-      }
-      component.parentComponent_ = null;
-      this.childIndex_[component.id()] = null;
-      this.childNameIndex_[toTitleCase$1(component.name())] = null;
-      this.childNameIndex_[toLowerCase(component.name())] = null;
-      const compEl = component.el();
-      if (compEl && compEl.parentNode === this.contentEl()) {
-        this.contentEl().removeChild(component.el());
-      }
-    }
-
-    /**
-     * Add and initialize default child `Component`s based upon options.
-     */
-    initChildren() {
-      const children = this.options_.children;
-      if (children) {
-        // `this` is `parent`
-        const parentOptions = this.options_;
-        const handleAdd = child => {
-          const name = child.name;
-          let opts = child.opts;
-
-          // Allow options for children to be set at the parent options
-          // e.g. videojs(id, { controlBar: false });
-          // instead of videojs(id, { children: { controlBar: false });
-          if (parentOptions[name] !== undefined) {
-            opts = parentOptions[name];
-          }
-
-          // Allow for disabling default components
-          // e.g. options['children']['posterImage'] = false
-          if (opts === false) {
-            return;
-          }
-
-          // Allow options to be passed as a simple boolean if no configuration
-          // is necessary.
-          if (opts === true) {
-            opts = {};
-          }
-
-          // We also want to pass the original player options
-          // to each component as well so they don't need to
-          // reach back into the player for options later.
-          opts.playerOptions = this.options_.playerOptions;
-
-          // Create and add the child component.
-          // Add a direct reference to the child by name on the parent instance.
-          // If two of the same component are used, different names should be supplied
-          // for each
-          const newChild = this.addChild(name, opts);
-          if (newChild) {
-            this[name] = newChild;
-          }
-        };
-
-        // Allow for an array of children details to passed in the options
-        let workingChildren;
-        const Tech = Component$1.getComponent('Tech');
-        if (Array.isArray(children)) {
-          workingChildren = children;
-        } else {
-          workingChildren = Object.keys(children);
-        }
-        workingChildren
-        // children that are in this.options_ but also in workingChildren  would
-        // give us extra children we do not want. So, we want to filter them out.
-        .concat(Object.keys(this.options_).filter(function (child) {
-          return !workingChildren.some(function (wchild) {
-            if (typeof wchild === 'string') {
-              return child === wchild;
-            }
-            return child === wchild.name;
-          });
-        })).map(child => {
-          let name;
-          let opts;
-          if (typeof child === 'string') {
-            name = child;
-            opts = children[name] || this.options_[name] || {};
-          } else {
-            name = child.name;
-            opts = child;
-          }
-          return {
-            name,
-            opts
-          };
-        }).filter(child => {
-          // we have to make sure that child.name isn't in the techOrder since
-          // techs are registered as Components but can't aren't compatible
-          // See https://github.com/videojs/video.js/issues/2772
-          const c = Component$1.getComponent(child.opts.componentClass || toTitleCase$1(child.name));
-          return c && !Tech.isTech(c);
-        }).forEach(handleAdd);
-      }
-    }
-
-    /**
-     * Builds the default DOM class name. Should be overridden by sub-components.
-     *
-     * @return {string}
-     *         The DOM class name for this object.
-     *
-     * @abstract
-     */
-    buildCSSClass() {
-      // Child classes can include a function that does:
-      // return 'CLASS NAME' + this._super();
-      return '';
-    }
-
-    /**
-     * Bind a listener to the component's ready state.
-     * Different from event listeners in that if the ready event has already happened
-     * it will trigger the function immediately.
-     *
-     * @param {ReadyCallback} fn
-     *        Function that gets called when the `Component` is ready.
-     *
-     * @return {Component}
-     *         Returns itself; method can be chained.
-     */
-    ready(fn, sync = false) {
-      if (!fn) {
-        return;
-      }
-      if (!this.isReady_) {
-        this.readyQueue_ = this.readyQueue_ || [];
-        this.readyQueue_.push(fn);
-        return;
-      }
-      if (sync) {
-        fn.call(this);
-      } else {
-        // Call the function asynchronously by default for consistency
-        this.setTimeout(fn, 1);
-      }
-    }
-
-    /**
-     * Trigger all the ready listeners for this `Component`.
-     *
-     * @fires Component#ready
-     */
-    triggerReady() {
-      this.isReady_ = true;
-
-      // Ensure ready is triggered asynchronously
-      this.setTimeout(function () {
-        const readyQueue = this.readyQueue_;
-
-        // Reset Ready Queue
-        this.readyQueue_ = [];
-        if (readyQueue && readyQueue.length > 0) {
-          readyQueue.forEach(function (fn) {
-            fn.call(this);
-          }, this);
-        }
-
-        // Allow for using event listeners also
-        /**
-         * Triggered when a `Component` is ready.
-         *
-         * @event Component#ready
-         * @type {Event}
-         */
-        this.trigger('ready');
-      }, 1);
-    }
-
-    /**
-     * Find a single DOM element matching a `selector`. This can be within the `Component`s
-     * `contentEl()` or another custom context.
-     *
-     * @param {string} selector
-     *        A valid CSS selector, which will be passed to `querySelector`.
-     *
-     * @param {Element|string} [context=this.contentEl()]
-     *        A DOM element within which to query. Can also be a selector string in
-     *        which case the first matching element will get used as context. If
-     *        missing `this.contentEl()` gets used. If  `this.contentEl()` returns
-     *        nothing it falls back to `document`.
-     *
-     * @return {Element|null}
-     *         the dom element that was found, or null
-     *
-     * @see [Information on CSS Selectors](https://developer.mozilla.org/en-US/docs/Web/Guide/CSS/Getting_Started/Selectors)
-     */
-    $(selector, context) {
-      return $(selector, context || this.contentEl());
-    }
-
-    /**
-     * Finds all DOM element matching a `selector`. This can be within the `Component`s
-     * `contentEl()` or another custom context.
-     *
-     * @param {string} selector
-     *        A valid CSS selector, which will be passed to `querySelectorAll`.
-     *
-     * @param {Element|string} [context=this.contentEl()]
-     *        A DOM element within which to query. Can also be a selector string in
-     *        which case the first matching element will get used as context. If
-     *        missing `this.contentEl()` gets used. If  `this.contentEl()` returns
-     *        nothing it falls back to `document`.
-     *
-     * @return {NodeList}
-     *         a list of dom elements that were found
-     *
-     * @see [Information on CSS Selectors](https://developer.mozilla.org/en-US/docs/Web/Guide/CSS/Getting_Started/Selectors)
-     */
-    $$(selector, context) {
-      return $$(selector, context || this.contentEl());
-    }
-
-    /**
-     * Check if a component's element has a CSS class name.
-     *
-     * @param {string} classToCheck
-     *        CSS class name to check.
-     *
-     * @return {boolean}
-     *         - True if the `Component` has the class.
-     *         - False if the `Component` does not have the class`
-     */
-    hasClass(classToCheck) {
-      return hasClass(this.el_, classToCheck);
-    }
-
-    /**
-     * Add a CSS class name to the `Component`s element.
-     *
-     * @param {...string} classesToAdd
-     *        One or more CSS class name to add.
-     */
-    addClass(...classesToAdd) {
-      addClass(this.el_, ...classesToAdd);
-    }
-
-    /**
-     * Remove a CSS class name from the `Component`s element.
-     *
-     * @param {...string} classesToRemove
-     *        One or more CSS class name to remove.
-     */
-    removeClass(...classesToRemove) {
-      removeClass(this.el_, ...classesToRemove);
-    }
-
-    /**
-     * Add or remove a CSS class name from the component's element.
-     * - `classToToggle` gets added when {@link Component#hasClass} would return false.
-     * - `classToToggle` gets removed when {@link Component#hasClass} would return true.
-     *
-     * @param  {string} classToToggle
-     *         The class to add or remove based on (@link Component#hasClass}
-     *
-     * @param  {boolean|Dom~predicate} [predicate]
-     *         An {@link Dom~predicate} function or a boolean
-     */
-    toggleClass(classToToggle, predicate) {
-      toggleClass(this.el_, classToToggle, predicate);
-    }
-
-    /**
-     * Show the `Component`s element if it is hidden by removing the
-     * 'vjs-hidden' class name from it.
-     */
-    show() {
-      this.removeClass('vjs-hidden');
-    }
-
-    /**
-     * Hide the `Component`s element if it is currently showing by adding the
-     * 'vjs-hidden` class name to it.
-     */
-    hide() {
-      this.addClass('vjs-hidden');
-    }
-
-    /**
-     * Lock a `Component`s element in its visible state by adding the 'vjs-lock-showing'
-     * class name to it. Used during fadeIn/fadeOut.
-     *
-     * @private
-     */
-    lockShowing() {
-      this.addClass('vjs-lock-showing');
-    }
-
-    /**
-     * Unlock a `Component`s element from its visible state by removing the 'vjs-lock-showing'
-     * class name from it. Used during fadeIn/fadeOut.
-     *
-     * @private
-     */
-    unlockShowing() {
-      this.removeClass('vjs-lock-showing');
-    }
-
-    /**
-     * Get the value of an attribute on the `Component`s element.
-     *
-     * @param {string} attribute
-     *        Name of the attribute to get the value from.
-     *
-     * @return {string|null}
-     *         - The value of the attribute that was asked for.
-     *         - Can be an empty string on some browsers if the attribute does not exist
-     *           or has no value
-     *         - Most browsers will return null if the attribute does not exist or has
-     *           no value.
-     *
-     * @see [DOM API]{@link https://developer.mozilla.org/en-US/docs/Web/API/Element/getAttribute}
-     */
-    getAttribute(attribute) {
-      return getAttribute(this.el_, attribute);
-    }
-
-    /**
-     * Set the value of an attribute on the `Component`'s element
-     *
-     * @param {string} attribute
-     *        Name of the attribute to set.
-     *
-     * @param {string} value
-     *        Value to set the attribute to.
-     *
-     * @see [DOM API]{@link https://developer.mozilla.org/en-US/docs/Web/API/Element/setAttribute}
-     */
-    setAttribute(attribute, value) {
-      setAttribute(this.el_, attribute, value);
-    }
-
-    /**
-     * Remove an attribute from the `Component`s element.
-     *
-     * @param {string} attribute
-     *        Name of the attribute to remove.
-     *
-     * @see [DOM API]{@link https://developer.mozilla.org/en-US/docs/Web/API/Element/removeAttribute}
-     */
-    removeAttribute(attribute) {
-      removeAttribute(this.el_, attribute);
-    }
-
-    /**
-     * Get or set the width of the component based upon the CSS styles.
-     * See {@link Component#dimension} for more detailed information.
-     *
-     * @param {number|string} [num]
-     *        The width that you want to set postfixed with '%', 'px' or nothing.
-     *
-     * @param {boolean} [skipListeners]
-     *        Skip the componentresize event trigger
-     *
-     * @return {number|undefined}
-     *         The width when getting, zero if there is no width
-     */
-    width(num, skipListeners) {
-      return this.dimension('width', num, skipListeners);
-    }
-
-    /**
-     * Get or set the height of the component based upon the CSS styles.
-     * See {@link Component#dimension} for more detailed information.
-     *
-     * @param {number|string} [num]
-     *        The height that you want to set postfixed with '%', 'px' or nothing.
-     *
-     * @param {boolean} [skipListeners]
-     *        Skip the componentresize event trigger
-     *
-     * @return {number|undefined}
-     *         The height when getting, zero if there is no height
-     */
-    height(num, skipListeners) {
-      return this.dimension('height', num, skipListeners);
-    }
-
-    /**
-     * Set both the width and height of the `Component` element at the same time.
-     *
-     * @param  {number|string} width
-     *         Width to set the `Component`s element to.
-     *
-     * @param  {number|string} height
-     *         Height to set the `Component`s element to.
-     */
-    dimensions(width, height) {
-      // Skip componentresize listeners on width for optimization
-      this.width(width, true);
-      this.height(height);
-    }
-
-    /**
-     * Get or set width or height of the `Component` element. This is the shared code
-     * for the {@link Component#width} and {@link Component#height}.
-     *
-     * Things to know:
-     * - If the width or height in an number this will return the number postfixed with 'px'.
-     * - If the width/height is a percent this will return the percent postfixed with '%'
-     * - Hidden elements have a width of 0 with `window.getComputedStyle`. This function
-     *   defaults to the `Component`s `style.width` and falls back to `window.getComputedStyle`.
-     *   See [this]{@link http://www.foliotek.com/devblog/getting-the-width-of-a-hidden-element-with-jquery-using-width/}
-     *   for more information
-     * - If you want the computed style of the component, use {@link Component#currentWidth}
-     *   and {@link {Component#currentHeight}
-     *
-     * @fires Component#componentresize
-     *
-     * @param {string} widthOrHeight
-     8        'width' or 'height'
-     *
-     * @param  {number|string} [num]
-     8         New dimension
-     *
-     * @param  {boolean} [skipListeners]
-     *         Skip componentresize event trigger
-     *
-     * @return {number|undefined}
-     *         The dimension when getting or 0 if unset
-     */
-    dimension(widthOrHeight, num, skipListeners) {
-      if (num !== undefined) {
-        // Set to zero if null or literally NaN (NaN !== NaN)
-        if (num === null || num !== num) {
-          num = 0;
-        }
-
-        // Check if using css width/height (% or px) and adjust
-        if (('' + num).indexOf('%') !== -1 || ('' + num).indexOf('px') !== -1) {
-          this.el_.style[widthOrHeight] = num;
-        } else if (num === 'auto') {
-          this.el_.style[widthOrHeight] = '';
-        } else {
-          this.el_.style[widthOrHeight] = num + 'px';
-        }
-
-        // skipListeners allows us to avoid triggering the resize event when setting both width and height
-        if (!skipListeners) {
-          /**
-           * Triggered when a component is resized.
-           *
-           * @event Component#componentresize
-           * @type {Event}
-           */
-          this.trigger('componentresize');
-        }
-        return;
-      }
-
-      // Not setting a value, so getting it
-      // Make sure element exists
-      if (!this.el_) {
-        return 0;
-      }
-
-      // Get dimension value from style
-      const val = this.el_.style[widthOrHeight];
-      const pxIndex = val.indexOf('px');
-      if (pxIndex !== -1) {
-        // Return the pixel value with no 'px'
-        return parseInt(val.slice(0, pxIndex), 10);
-      }
-
-      // No px so using % or no style was set, so falling back to offsetWidth/height
-      // If component has display:none, offset will return 0
-      // TODO: handle display:none and no dimension style using px
-      return parseInt(this.el_['offset' + toTitleCase$1(widthOrHeight)], 10);
-    }
-
-    /**
-     * Get the computed width or the height of the component's element.
-     *
-     * Uses `window.getComputedStyle`.
-     *
-     * @param {string} widthOrHeight
-     *        A string containing 'width' or 'height'. Whichever one you want to get.
-     *
-     * @return {number}
-     *         The dimension that gets asked for or 0 if nothing was set
-     *         for that dimension.
-     */
-    currentDimension(widthOrHeight) {
-      let computedWidthOrHeight = 0;
-      if (widthOrHeight !== 'width' && widthOrHeight !== 'height') {
-        throw new Error('currentDimension only accepts width or height value');
-      }
-      computedWidthOrHeight = computedStyle(this.el_, widthOrHeight);
-
-      // remove 'px' from variable and parse as integer
-      computedWidthOrHeight = parseFloat(computedWidthOrHeight);
-
-      // if the computed value is still 0, it's possible that the browser is lying
-      // and we want to check the offset values.
-      // This code also runs wherever getComputedStyle doesn't exist.
-      if (computedWidthOrHeight === 0 || isNaN(computedWidthOrHeight)) {
-        const rule = `offset${toTitleCase$1(widthOrHeight)}`;
-        computedWidthOrHeight = this.el_[rule];
-      }
-      return computedWidthOrHeight;
-    }
-
-    /**
-     * An object that contains width and height values of the `Component`s
-     * computed style. Uses `window.getComputedStyle`.
-     *
-     * @typedef {Object} Component~DimensionObject
-     *
-     * @property {number} width
-     *           The width of the `Component`s computed style.
-     *
-     * @property {number} height
-     *           The height of the `Component`s computed style.
-     */
-
-    /**
-     * Get an object that contains computed width and height values of the
-     * component's element.
-     *
-     * Uses `window.getComputedStyle`.
-     *
-     * @return {Component~DimensionObject}
-     *         The computed dimensions of the component's element.
-     */
-    currentDimensions() {
-      return {
-        width: this.currentDimension('width'),
-        height: this.currentDimension('height')
-      };
-    }
-
-    /**
-     * Get the computed width of the component's element.
-     *
-     * Uses `window.getComputedStyle`.
-     *
-     * @return {number}
-     *         The computed width of the component's element.
-     */
-    currentWidth() {
-      return this.currentDimension('width');
-    }
-
-    /**
-     * Get the computed height of the component's element.
-     *
-     * Uses `window.getComputedStyle`.
-     *
-     * @return {number}
-     *         The computed height of the component's element.
-     */
-    currentHeight() {
-      return this.currentDimension('height');
-    }
-
-    /**
-     * Set the focus to this component
-     */
-    focus() {
-      this.el_.focus();
-    }
-
-    /**
-     * Remove the focus from this component
-     */
-    blur() {
-      this.el_.blur();
-    }
-
-    /**
-     * When this Component receives a `keydown` event which it does not process,
-     *  it passes the event to the Player for handling.
-     *
-     * @param {KeyboardEvent} event
-     *        The `keydown` event that caused this function to be called.
-     */
-    handleKeyDown(event) {
-      if (this.player_) {
-        // We only stop propagation here because we want unhandled events to fall
-        // back to the browser. Exclude Tab for focus trapping.
-        if (!keycode.isEventKey(event, 'Tab')) {
-          event.stopPropagation();
-        }
-        this.player_.handleKeyDown(event);
-      }
-    }
-
-    /**
-     * Many components used to have a `handleKeyPress` method, which was poorly
-     * named because it listened to a `keydown` event. This method name now
-     * delegates to `handleKeyDown`. This means anyone calling `handleKeyPress`
-     * will not see their method calls stop working.
-     *
-     * @param {KeyboardEvent} event
-     *        The event that caused this function to be called.
-     */
-    handleKeyPress(event) {
-      this.handleKeyDown(event);
-    }
-
-    /**
-     * Emit a 'tap' events when touch event support gets detected. This gets used to
-     * support toggling the controls through a tap on the video. They get enabled
-     * because every sub-component would have extra overhead otherwise.
-     *
-     * @protected
-     * @fires Component#tap
-     * @listens Component#touchstart
-     * @listens Component#touchmove
-     * @listens Component#touchleave
-     * @listens Component#touchcancel
-     * @listens Component#touchend
-      */
-    emitTapEvents() {
-      // Track the start time so we can determine how long the touch lasted
-      let touchStart = 0;
-      let firstTouch = null;
-
-      // Maximum movement allowed during a touch event to still be considered a tap
-      // Other popular libs use anywhere from 2 (hammer.js) to 15,
-      // so 10 seems like a nice, round number.
-      const tapMovementThreshold = 10;
-
-      // The maximum length a touch can be while still being considered a tap
-      const touchTimeThreshold = 200;
-      let couldBeTap;
-      this.on('touchstart', function (event) {
-        // If more than one finger, don't consider treating this as a click
-        if (event.touches.length === 1) {
-          // Copy pageX/pageY from the object
-          firstTouch = {
-            pageX: event.touches[0].pageX,
-            pageY: event.touches[0].pageY
-          };
-          // Record start time so we can detect a tap vs. "touch and hold"
-          touchStart = window.performance.now();
-          // Reset couldBeTap tracking
-          couldBeTap = true;
-        }
-      });
-      this.on('touchmove', function (event) {
-        // If more than one finger, don't consider treating this as a click
-        if (event.touches.length > 1) {
-          couldBeTap = false;
-        } else if (firstTouch) {
-          // Some devices will throw touchmoves for all but the slightest of taps.
-          // So, if we moved only a small distance, this could still be a tap
-          const xdiff = event.touches[0].pageX - firstTouch.pageX;
-          const ydiff = event.touches[0].pageY - firstTouch.pageY;
-          const touchDistance = Math.sqrt(xdiff * xdiff + ydiff * ydiff);
-          if (touchDistance > tapMovementThreshold) {
-            couldBeTap = false;
-          }
-        }
-      });
-      const noTap = function () {
-        couldBeTap = false;
-      };
-
-      // TODO: Listen to the original target. http://youtu.be/DujfpXOKUp8?t=13m8s
-      this.on('touchleave', noTap);
-      this.on('touchcancel', noTap);
-
-      // When the touch ends, measure how long it took and trigger the appropriate
-      // event
-      this.on('touchend', function (event) {
-        firstTouch = null;
-        // Proceed only if the touchmove/leave/cancel event didn't happen
-        if (couldBeTap === true) {
-          // Measure how long the touch lasted
-          const touchTime = window.performance.now() - touchStart;
-
-          // Make sure the touch was less than the threshold to be considered a tap
-          if (touchTime < touchTimeThreshold) {
-            // Don't let browser turn this into a click
-            event.preventDefault();
-            /**
-             * Triggered when a `Component` is tapped.
-             *
-             * @event Component#tap
-             * @type {MouseEvent}
-             */
-            this.trigger('tap');
-            // It may be good to copy the touchend event object and change the
-            // type to tap, if the other event properties aren't exact after
-            // Events.fixEvent runs (e.g. event.target)
-          }
-        }
-      });
-    }
-
-    /**
-     * This function reports user activity whenever touch events happen. This can get
-     * turned off by any sub-components that wants touch events to act another way.
-     *
-     * Report user touch activity when touch events occur. User activity gets used to
-     * determine when controls should show/hide. It is simple when it comes to mouse
-     * events, because any mouse event should show the controls. So we capture mouse
-     * events that bubble up to the player and report activity when that happens.
-     * With touch events it isn't as easy as `touchstart` and `touchend` toggle player
-     * controls. So touch events can't help us at the player level either.
-     *
-     * User activity gets checked asynchronously. So what could happen is a tap event
-     * on the video turns the controls off. Then the `touchend` event bubbles up to
-     * the player. Which, if it reported user activity, would turn the controls right
-     * back on. We also don't want to completely block touch events from bubbling up.
-     * Furthermore a `touchmove` event and anything other than a tap, should not turn
-     * controls back on.
-     *
-     * @listens Component#touchstart
-     * @listens Component#touchmove
-     * @listens Component#touchend
-     * @listens Component#touchcancel
-     */
-    enableTouchActivity() {
-      // Don't continue if the root player doesn't support reporting user activity
-      if (!this.player() || !this.player().reportUserActivity) {
-        return;
-      }
-
-      // listener for reporting that the user is active
-      const report = bind_(this.player(), this.player().reportUserActivity);
-      let touchHolding;
-      this.on('touchstart', function () {
-        report();
-        // For as long as the they are touching the device or have their mouse down,
-        // we consider them active even if they're not moving their finger or mouse.
-        // So we want to continue to update that they are active
-        this.clearInterval(touchHolding);
-        // report at the same interval as activityCheck
-        touchHolding = this.setInterval(report, 250);
-      });
-      const touchEnd = function (event) {
-        report();
-        // stop the interval that maintains activity if the touch is holding
-        this.clearInterval(touchHolding);
-      };
-      this.on('touchmove', report);
-      this.on('touchend', touchEnd);
-      this.on('touchcancel', touchEnd);
-    }
-
-    /**
-     * A callback that has no parameters and is bound into `Component`s context.
-     *
-     * @callback Component~GenericCallback
-     * @this Component
-     */
-
-    /**
-     * Creates a function that runs after an `x` millisecond timeout. This function is a
-     * wrapper around `window.setTimeout`. There are a few reasons to use this one
-     * instead though:
-     * 1. It gets cleared via  {@link Component#clearTimeout} when
-     *    {@link Component#dispose} gets called.
-     * 2. The function callback will gets turned into a {@link Component~GenericCallback}
-     *
-     * > Note: You can't use `window.clearTimeout` on the id returned by this function. This
-     *         will cause its dispose listener not to get cleaned up! Please use
-     *         {@link Component#clearTimeout} or {@link Component#dispose} instead.
-     *
-     * @param {Component~GenericCallback} fn
-     *        The function that will be run after `timeout`.
-     *
-     * @param {number} timeout
-     *        Timeout in milliseconds to delay before executing the specified function.
-     *
-     * @return {number}
-     *         Returns a timeout ID that gets used to identify the timeout. It can also
-     *         get used in {@link Component#clearTimeout} to clear the timeout that
-     *         was set.
-     *
-     * @listens Component#dispose
-     * @see [Similar to]{@link https://developer.mozilla.org/en-US/docs/Web/API/WindowTimers/setTimeout}
-     */
-    setTimeout(fn, timeout) {
-      // declare as variables so they are properly available in timeout function
-      // eslint-disable-next-line
-      var timeoutId;
-      fn = bind_(this, fn);
-      this.clearTimersOnDispose_();
-      timeoutId = window.setTimeout(() => {
-        if (this.setTimeoutIds_.has(timeoutId)) {
-          this.setTimeoutIds_.delete(timeoutId);
-        }
-        fn();
-      }, timeout);
-      this.setTimeoutIds_.add(timeoutId);
-      return timeoutId;
-    }
-
-    /**
-     * Clears a timeout that gets created via `window.setTimeout` or
-     * {@link Component#setTimeout}. If you set a timeout via {@link Component#setTimeout}
-     * use this function instead of `window.clearTimout`. If you don't your dispose
-     * listener will not get cleaned up until {@link Component#dispose}!
-     *
-     * @param {number} timeoutId
-     *        The id of the timeout to clear. The return value of
-     *        {@link Component#setTimeout} or `window.setTimeout`.
-     *
-     * @return {number}
-     *         Returns the timeout id that was cleared.
-     *
-     * @see [Similar to]{@link https://developer.mozilla.org/en-US/docs/Web/API/WindowTimers/clearTimeout}
-     */
-    clearTimeout(timeoutId) {
-      if (this.setTimeoutIds_.has(timeoutId)) {
-        this.setTimeoutIds_.delete(timeoutId);
-        window.clearTimeout(timeoutId);
-      }
-      return timeoutId;
-    }
-
-    /**
-     * Creates a function that gets run every `x` milliseconds. This function is a wrapper
-     * around `window.setInterval`. There are a few reasons to use this one instead though.
-     * 1. It gets cleared via  {@link Component#clearInterval} when
-     *    {@link Component#dispose} gets called.
-     * 2. The function callback will be a {@link Component~GenericCallback}
-     *
-     * @param {Component~GenericCallback} fn
-     *        The function to run every `x` seconds.
-     *
-     * @param {number} interval
-     *        Execute the specified function every `x` milliseconds.
-     *
-     * @return {number}
-     *         Returns an id that can be used to identify the interval. It can also be be used in
-     *         {@link Component#clearInterval} to clear the interval.
-     *
-     * @listens Component#dispose
-     * @see [Similar to]{@link https://developer.mozilla.org/en-US/docs/Web/API/WindowTimers/setInterval}
-     */
-    setInterval(fn, interval) {
-      fn = bind_(this, fn);
-      this.clearTimersOnDispose_();
-      const intervalId = window.setInterval(fn, interval);
-      this.setIntervalIds_.add(intervalId);
-      return intervalId;
-    }
-
-    /**
-     * Clears an interval that gets created via `window.setInterval` or
-     * {@link Component#setInterval}. If you set an interval via {@link Component#setInterval}
-     * use this function instead of `window.clearInterval`. If you don't your dispose
-     * listener will not get cleaned up until {@link Component#dispose}!
-     *
-     * @param {number} intervalId
-     *        The id of the interval to clear. The return value of
-     *        {@link Component#setInterval} or `window.setInterval`.
-     *
-     * @return {number}
-     *         Returns the interval id that was cleared.
-     *
-     * @see [Similar to]{@link https://developer.mozilla.org/en-US/docs/Web/API/WindowTimers/clearInterval}
-     */
-    clearInterval(intervalId) {
-      if (this.setIntervalIds_.has(intervalId)) {
-        this.setIntervalIds_.delete(intervalId);
-        window.clearInterval(intervalId);
-      }
-      return intervalId;
-    }
-
-    /**
-     * Queues up a callback to be passed to requestAnimationFrame (rAF), but
-     * with a few extra bonuses:
-     *
-     * - Supports browsers that do not support rAF by falling back to
-     *   {@link Component#setTimeout}.
-     *
-     * - The callback is turned into a {@link Component~GenericCallback} (i.e.
-     *   bound to the component).
-     *
-     * - Automatic cancellation of the rAF callback is handled if the component
-     *   is disposed before it is called.
-     *
-     * @param  {Component~GenericCallback} fn
-     *         A function that will be bound to this component and executed just
-     *         before the browser's next repaint.
-     *
-     * @return {number}
-     *         Returns an rAF ID that gets used to identify the timeout. It can
-     *         also be used in {@link Component#cancelAnimationFrame} to cancel
-     *         the animation frame callback.
-     *
-     * @listens Component#dispose
-     * @see [Similar to]{@link https://developer.mozilla.org/en-US/docs/Web/API/window/requestAnimationFrame}
-     */
-    requestAnimationFrame(fn) {
-      this.clearTimersOnDispose_();
-
-      // declare as variables so they are properly available in rAF function
-      // eslint-disable-next-line
-      var id;
-      fn = bind_(this, fn);
-      id = window.requestAnimationFrame(() => {
-        if (this.rafIds_.has(id)) {
-          this.rafIds_.delete(id);
-        }
-        fn();
-      });
-      this.rafIds_.add(id);
-      return id;
-    }
-
-    /**
-     * Request an animation frame, but only one named animation
-     * frame will be queued. Another will never be added until
-     * the previous one finishes.
-     *
-     * @param {string} name
-     *        The name to give this requestAnimationFrame
-     *
-     * @param  {Component~GenericCallback} fn
-     *         A function that will be bound to this component and executed just
-     *         before the browser's next repaint.
-     */
-    requestNamedAnimationFrame(name, fn) {
-      if (this.namedRafs_.has(name)) {
-        return;
-      }
-      this.clearTimersOnDispose_();
-      fn = bind_(this, fn);
-      const id = this.requestAnimationFrame(() => {
-        fn();
-        if (this.namedRafs_.has(name)) {
-          this.namedRafs_.delete(name);
-        }
-      });
-      this.namedRafs_.set(name, id);
-      return name;
-    }
-
-    /**
-     * Cancels a current named animation frame if it exists.
-     *
-     * @param {string} name
-     *        The name of the requestAnimationFrame to cancel.
-     */
-    cancelNamedAnimationFrame(name) {
-      if (!this.namedRafs_.has(name)) {
-        return;
-      }
-      this.cancelAnimationFrame(this.namedRafs_.get(name));
-      this.namedRafs_.delete(name);
-    }
-
-    /**
-     * Cancels a queued callback passed to {@link Component#requestAnimationFrame}
-     * (rAF).
-     *
-     * If you queue an rAF callback via {@link Component#requestAnimationFrame},
-     * use this function instead of `window.cancelAnimationFrame`. If you don't,
-     * your dispose listener will not get cleaned up until {@link Component#dispose}!
-     *
-     * @param {number} id
-     *        The rAF ID to clear. The return value of {@link Component#requestAnimationFrame}.
-     *
-     * @return {number}
-     *         Returns the rAF ID that was cleared.
-     *
-     * @see [Similar to]{@link https://developer.mozilla.org/en-US/docs/Web/API/window/cancelAnimationFrame}
-     */
-    cancelAnimationFrame(id) {
-      if (this.rafIds_.has(id)) {
-        this.rafIds_.delete(id);
-        window.cancelAnimationFrame(id);
-      }
-      return id;
-    }
-
-    /**
-     * A function to setup `requestAnimationFrame`, `setTimeout`,
-     * and `setInterval`, clearing on dispose.
-     *
-     * > Previously each timer added and removed dispose listeners on it's own.
-     * For better performance it was decided to batch them all, and use `Set`s
-     * to track outstanding timer ids.
-     *
-     * @private
-     */
-    clearTimersOnDispose_() {
-      if (this.clearingTimersOnDispose_) {
-        return;
-      }
-      this.clearingTimersOnDispose_ = true;
-      this.one('dispose', () => {
-        [['namedRafs_', 'cancelNamedAnimationFrame'], ['rafIds_', 'cancelAnimationFrame'], ['setTimeoutIds_', 'clearTimeout'], ['setIntervalIds_', 'clearInterval']].forEach(([idName, cancelName]) => {
-          // for a `Set` key will actually be the value again
-          // so forEach((val, val) =>` but for maps we want to use
-          // the key.
-          this[idName].forEach((val, key) => this[cancelName](key));
-        });
-        this.clearingTimersOnDispose_ = false;
-      });
-    }
-
-    /**
-     * Register a `Component` with `videojs` given the name and the component.
-     *
-     * > NOTE: {@link Tech}s should not be registered as a `Component`. {@link Tech}s
-     *         should be registered using {@link Tech.registerTech} or
-     *         {@link videojs:videojs.registerTech}.
-     *
-     * > NOTE: This function can also be seen on videojs as
-     *         {@link videojs:videojs.registerComponent}.
-     *
-     * @param {string} name
-     *        The name of the `Component` to register.
-     *
-     * @param {Component} ComponentToRegister
-     *        The `Component` class to register.
-     *
-     * @return {Component}
-     *         The `Component` that was registered.
-     */
-    static registerComponent(name, ComponentToRegister) {
-      if (typeof name !== 'string' || !name) {
-        throw new Error(`Illegal component name, "${name}"; must be a non-empty string.`);
-      }
-      const Tech = Component$1.getComponent('Tech');
-
-      // We need to make sure this check is only done if Tech has been registered.
-      const isTech = Tech && Tech.isTech(ComponentToRegister);
-      const isComp = Component$1 === ComponentToRegister || Component$1.prototype.isPrototypeOf(ComponentToRegister.prototype);
-      if (isTech || !isComp) {
-        let reason;
-        if (isTech) {
-          reason = 'techs must be registered using Tech.registerTech()';
-        } else {
-          reason = 'must be a Component subclass';
-        }
-        throw new Error(`Illegal component, "${name}"; ${reason}.`);
-      }
-      name = toTitleCase$1(name);
-      if (!Component$1.components_) {
-        Component$1.components_ = {};
-      }
-      const Player = Component$1.getComponent('Player');
-      if (name === 'Player' && Player && Player.players) {
-        const players = Player.players;
-        const playerNames = Object.keys(players);
-
-        // If we have players that were disposed, then their name will still be
-        // in Players.players. So, we must loop through and verify that the value
-        // for each item is not null. This allows registration of the Player component
-        // after all players have been disposed or before any were created.
-        if (players && playerNames.length > 0 && playerNames.map(pname => players[pname]).every(Boolean)) {
-          throw new Error('Can not register Player component after player has been created.');
-        }
-      }
-      Component$1.components_[name] = ComponentToRegister;
-      Component$1.components_[toLowerCase(name)] = ComponentToRegister;
-      return ComponentToRegister;
-    }
-
-    /**
-     * Get a `Component` based on the name it was registered with.
-     *
-     * @param {string} name
-     *        The Name of the component to get.
-     *
-     * @return {typeof Component}
-     *         The `Component` that got registered under the given name.
-     */
-    static getComponent(name) {
-      if (!name || !Component$1.components_) {
-        return;
-      }
-      return Component$1.components_[name];
-    }
-  }
-  Component$1.registerComponent('Component', Component$1);
-
-  /**
-   * @file time.js
-   * @module time
-   */
-
-  /**
-   * Returns the time for the specified index at the start or end
-   * of a TimeRange object.
-   *
-   * @typedef    {Function} TimeRangeIndex
-   *
-   * @param      {number} [index=0]
-   *             The range number to return the time for.
-   *
-   * @return     {number}
-   *             The time offset at the specified index.
-   *
-   * @deprecated The index argument must be provided.
-   *             In the future, leaving it out will throw an error.
-   */
-
-  /**
-   * An object that contains ranges of time, which mimics {@link TimeRanges}.
-   *
-   * @typedef  {Object} TimeRange
-   *
-   * @property {number} length
-   *           The number of time ranges represented by this object.
-   *
-   * @property {module:time~TimeRangeIndex} start
-   *           Returns the time offset at which a specified time range begins.
-   *
-   * @property {module:time~TimeRangeIndex} end
-   *           Returns the time offset at which a specified time range ends.
-   *
-   * @see https://developer.mozilla.org/en-US/docs/Web/API/TimeRanges
-   */
-
-  /**
-   * Check if any of the time ranges are over the maximum index.
-   *
-   * @private
-   * @param   {string} fnName
-   *          The function name to use for logging
-   *
-   * @param   {number} index
-   *          The index to check
-   *
-   * @param   {number} maxIndex
-   *          The maximum possible index
-   *
-   * @throws  {Error} if the timeRanges provided are over the maxIndex
-   */
-  function rangeCheck(fnName, index, maxIndex) {
-    if (typeof index !== 'number' || index < 0 || index > maxIndex) {
-      throw new Error(`Failed to execute '${fnName}' on 'TimeRanges': The index provided (${index}) is non-numeric or out of bounds (0-${maxIndex}).`);
-    }
-  }
-
-  /**
-   * Get the time for the specified index at the start or end
-   * of a TimeRange object.
-   *
-   * @private
-   * @param      {string} fnName
-   *             The function name to use for logging
-   *
-   * @param      {string} valueIndex
-   *             The property that should be used to get the time. should be
-   *             'start' or 'end'
-   *
-   * @param      {Array} ranges
-   *             An array of time ranges
-   *
-   * @param      {Array} [rangeIndex=0]
-   *             The index to start the search at
-   *
-   * @return     {number}
-   *             The time that offset at the specified index.
-   *
-   * @deprecated rangeIndex must be set to a value, in the future this will throw an error.
-   * @throws     {Error} if rangeIndex is more than the length of ranges
-   */
-  function getRange(fnName, valueIndex, ranges, rangeIndex) {
-    rangeCheck(fnName, rangeIndex, ranges.length - 1);
-    return ranges[rangeIndex][valueIndex];
-  }
-
-  /**
-   * Create a time range object given ranges of time.
-   *
-   * @private
-   * @param   {Array} [ranges]
-   *          An array of time ranges.
-   *
-   * @return  {TimeRange}
-   */
-  function createTimeRangesObj(ranges) {
-    let timeRangesObj;
-    if (ranges === undefined || ranges.length === 0) {
-      timeRangesObj = {
-        length: 0,
-        start() {
-          throw new Error('This TimeRanges object is empty');
-        },
-        end() {
-          throw new Error('This TimeRanges object is empty');
-        }
-      };
-    } else {
-      timeRangesObj = {
-        length: ranges.length,
-        start: getRange.bind(null, 'start', 0, ranges),
-        end: getRange.bind(null, 'end', 1, ranges)
-      };
-    }
-    if (window.Symbol && window.Symbol.iterator) {
-      timeRangesObj[window.Symbol.iterator] = () => (ranges || []).values();
-    }
-    return timeRangesObj;
-  }
-
-  /**
-   * Create a `TimeRange` object which mimics an
-   * {@link https://developer.mozilla.org/en-US/docs/Web/API/TimeRanges|HTML5 TimeRanges instance}.
-   *
-   * @param {number|Array[]} start
-   *        The start of a single range (a number) or an array of ranges (an
-   *        array of arrays of two numbers each).
-   *
-   * @param {number} end
-   *        The end of a single range. Cannot be used with the array form of
-   *        the `start` argument.
-   *
-   * @return {TimeRange}
-   */
-  function createTimeRanges$1(start, end) {
-    if (Array.isArray(start)) {
-      return createTimeRangesObj(start);
-    } else if (start === undefined || end === undefined) {
-      return createTimeRangesObj();
-    }
-    return createTimeRangesObj([[start, end]]);
-  }
-
-  /**
-   * Format seconds as a time string, H:MM:SS or M:SS. Supplying a guide (in
-   * seconds) will force a number of leading zeros to cover the length of the
-   * guide.
-   *
-   * @private
-   * @param  {number} seconds
-   *         Number of seconds to be turned into a string
-   *
-   * @param  {number} guide
-   *         Number (in seconds) to model the string after
-   *
-   * @return {string}
-   *         Time formatted as H:MM:SS or M:SS
-   */
-  const defaultImplementation = function (seconds, guide) {
-    seconds = seconds < 0 ? 0 : seconds;
-    let s = Math.floor(seconds % 60);
-    let m = Math.floor(seconds / 60 % 60);
-    let h = Math.floor(seconds / 3600);
-    const gm = Math.floor(guide / 60 % 60);
-    const gh = Math.floor(guide / 3600);
-
-    // handle invalid times
-    if (isNaN(seconds) || seconds === Infinity) {
-      // '-' is false for all relational operators (e.g. <, >=) so this setting
-      // will add the minimum number of fields specified by the guide
-      h = m = s = '-';
-    }
-
-    // Check if we need to show hours
-    h = h > 0 || gh > 0 ? h + ':' : '';
-
-    // If hours are showing, we may need to add a leading zero.
-    // Always show at least one digit of minutes.
-    m = ((h || gm >= 10) && m < 10 ? '0' + m : m) + ':';
-
-    // Check if leading zero is need for seconds
-    s = s < 10 ? '0' + s : s;
-    return h + m + s;
-  };
-
-  // Internal pointer to the current implementation.
-  let implementation = defaultImplementation;
-
-  /**
-   * Replaces the default formatTime implementation with a custom implementation.
-   *
-   * @param {Function} customImplementation
-   *        A function which will be used in place of the default formatTime
-   *        implementation. Will receive the current time in seconds and the
-   *        guide (in seconds) as arguments.
-   */
-  function setFormatTime(customImplementation) {
-    implementation = customImplementation;
-  }
-
-  /**
-   * Resets formatTime to the default implementation.
-   */
-  function resetFormatTime() {
-    implementation = defaultImplementation;
-  }
-
-  /**
-   * Delegates to either the default time formatting function or a custom
-   * function supplied via `setFormatTime`.
-   *
-   * Formats seconds as a time string (H:MM:SS or M:SS). Supplying a
-   * guide (in seconds) will force a number of leading zeros to cover the
-   * length of the guide.
-   *
-   * @example  formatTime(125, 600) === "02:05"
-   * @param    {number} seconds
-   *           Number of seconds to be turned into a string
-   *
-   * @param    {number} guide
-   *           Number (in seconds) to model the string after
-   *
-   * @return   {string}
-   *           Time formatted as H:MM:SS or M:SS
-   */
-  function formatTime(seconds, guide = seconds) {
-    return implementation(seconds, guide);
-  }
-
-  var Time = /*#__PURE__*/Object.freeze({
-    __proto__: null,
-    createTimeRanges: createTimeRanges$1,
-    createTimeRange: createTimeRanges$1,
-    setFormatTime: setFormatTime,
-    resetFormatTime: resetFormatTime,
-    formatTime: formatTime
-  });
-
-  /**
-   * @file buffer.js
-   * @module buffer
-   */
-
-  /**
-   * Compute the percentage of the media that has been buffered.
-   *
-   * @param { import('./time').TimeRange } buffered
-   *        The current `TimeRanges` object representing buffered time ranges
-   *
-   * @param {number} duration
-   *        Total duration of the media
-   *
-   * @return {number}
-   *         Percent buffered of the total duration in decimal form.
-   */
-  function bufferedPercent(buffered, duration) {
-    let bufferedDuration = 0;
-    let start;
-    let end;
-    if (!duration) {
-      return 0;
-    }
-    if (!buffered || !buffered.length) {
-      buffered = createTimeRanges$1(0, 0);
-    }
-    for (let i = 0; i < buffered.length; i++) {
-      start = buffered.start(i);
-      end = buffered.end(i);
-
-      // buffered end can be bigger than duration by a very small fraction
-      if (end > duration) {
-        end = duration;
-      }
-      bufferedDuration += end - start;
-    }
-    return bufferedDuration / duration;
-  }
-
-  /**
-   * @file media-error.js
-   */
-
-  /**
-   * A Custom `MediaError` class which mimics the standard HTML5 `MediaError` class.
-   *
-   * @param {number|string|Object|MediaError} value
-   *        This can be of multiple types:
-   *        - number: should be a standard error code
-   *        - string: an error message (the code will be 0)
-   *        - Object: arbitrary properties
-   *        - `MediaError` (native): used to populate a video.js `MediaError` object
-   *        - `MediaError` (video.js): will return itself if it's already a
-   *          video.js `MediaError` object.
-   *
-   * @see [MediaError Spec]{@link https://dev.w3.org/html5/spec-author-view/video.html#mediaerror}
-   * @see [Encrypted MediaError Spec]{@link https://www.w3.org/TR/2013/WD-encrypted-media-20130510/#error-codes}
-   *
-   * @class MediaError
-   */
-  function MediaError(value) {
-    // Allow redundant calls to this constructor to avoid having `instanceof`
-    // checks peppered around the code.
-    if (value instanceof MediaError) {
-      return value;
-    }
-    if (typeof value === 'number') {
-      this.code = value;
-    } else if (typeof value === 'string') {
-      // default code is zero, so this is a custom error
-      this.message = value;
-    } else if (isObject$1(value)) {
-      // We assign the `code` property manually because native `MediaError` objects
-      // do not expose it as an own/enumerable property of the object.
-      if (typeof value.code === 'number') {
-        this.code = value.code;
-      }
-      Object.assign(this, value);
-    }
-    if (!this.message) {
-      this.message = MediaError.defaultMessages[this.code] || '';
-    }
-  }
-
-  /**
-   * The error code that refers two one of the defined `MediaError` types
-   *
-   * @type {Number}
-   */
-  MediaError.prototype.code = 0;
-
-  /**
-   * An optional message that to show with the error. Message is not part of the HTML5
-   * video spec but allows for more informative custom errors.
-   *
-   * @type {String}
-   */
-  MediaError.prototype.message = '';
-
-  /**
-   * An optional status code that can be set by plugins to allow even more detail about
-   * the error. For example a plugin might provide a specific HTTP status code and an
-   * error message for that code. Then when the plugin gets that error this class will
-   * know how to display an error message for it. This allows a custom message to show
-   * up on the `Player` error overlay.
-   *
-   * @type {Array}
-   */
-  MediaError.prototype.status = null;
-
-  /**
-   * An object containing an error type, as well as other information regarding the error.
-   *
-   * @typedef {{errorType: string, [key: string]: any}} ErrorMetadata
-   */
-
-  /**
-   * An optional object to give more detail about the error. This can be used to give
-   * a higher level of specificity to an error versus the more generic MediaError codes.
-   * `metadata` expects an `errorType` string that should align with the values from videojs.Error.
-   *
-   * @type {ErrorMetadata}
-   */
-  MediaError.prototype.metadata = null;
-
-  /**
-   * Errors indexed by the W3C standard. The order **CANNOT CHANGE**! See the
-   * specification listed under {@link MediaError} for more information.
-   *
-   * @enum {array}
-   * @readonly
-   * @property {string} 0 - MEDIA_ERR_CUSTOM
-   * @property {string} 1 - MEDIA_ERR_ABORTED
-   * @property {string} 2 - MEDIA_ERR_NETWORK
-   * @property {string} 3 - MEDIA_ERR_DECODE
-   * @property {string} 4 - MEDIA_ERR_SRC_NOT_SUPPORTED
-   * @property {string} 5 - MEDIA_ERR_ENCRYPTED
-   */
-  MediaError.errorTypes = ['MEDIA_ERR_CUSTOM', 'MEDIA_ERR_ABORTED', 'MEDIA_ERR_NETWORK', 'MEDIA_ERR_DECODE', 'MEDIA_ERR_SRC_NOT_SUPPORTED', 'MEDIA_ERR_ENCRYPTED'];
-
-  /**
-   * The default `MediaError` messages based on the {@link MediaError.errorTypes}.
-   *
-   * @type {Array}
-   * @constant
-   */
-  MediaError.defaultMessages = {
-    1: 'You aborted the media playback',
-    2: 'A network error caused the media download to fail part-way.',
-    3: 'The media playback was aborted due to a corruption problem or because the media used features your browser did not support.',
-    4: 'The media could not be loaded, either because the server or network failed or because the format is not supported.',
-    5: 'The media is encrypted and we do not have the keys to decrypt it.'
-  };
-
-  /**
-   * W3C error code for any custom error.
-   *
-   * @member MediaError#MEDIA_ERR_CUSTOM
-   * @constant {number}
-   * @default 0
-   */
-  MediaError.MEDIA_ERR_CUSTOM = 0;
-
-  /**
-   * W3C error code for any custom error.
-   *
-   * @member MediaError.MEDIA_ERR_CUSTOM
-   * @constant {number}
-   * @default 0
-   */
-  MediaError.prototype.MEDIA_ERR_CUSTOM = 0;
-
-  /**
-   * W3C error code for media error aborted.
-   *
-   * @member MediaError#MEDIA_ERR_ABORTED
-   * @constant {number}
-   * @default 1
-   */
-  MediaError.MEDIA_ERR_ABORTED = 1;
-
-  /**
-   * W3C error code for media error aborted.
-   *
-   * @member MediaError.MEDIA_ERR_ABORTED
-   * @constant {number}
-   * @default 1
-   */
-  MediaError.prototype.MEDIA_ERR_ABORTED = 1;
-
-  /**
-   * W3C error code for any network error.
-   *
-   * @member MediaError#MEDIA_ERR_NETWORK
-   * @constant {number}
-   * @default 2
-   */
-  MediaError.MEDIA_ERR_NETWORK = 2;
-
-  /**
-   * W3C error code for any network error.
-   *
-   * @member MediaError.MEDIA_ERR_NETWORK
-   * @constant {number}
-   * @default 2
-   */
-  MediaError.prototype.MEDIA_ERR_NETWORK = 2;
-
-  /**
-   * W3C error code for any decoding error.
-   *
-   * @member MediaError#MEDIA_ERR_DECODE
-   * @constant {number}
-   * @default 3
-   */
-  MediaError.MEDIA_ERR_DECODE = 3;
-
-  /**
-   * W3C error code for any decoding error.
-   *
-   * @member MediaError.MEDIA_ERR_DECODE
-   * @constant {number}
-   * @default 3
-   */
-  MediaError.prototype.MEDIA_ERR_DECODE = 3;
-
-  /**
-   * W3C error code for any time that a source is not supported.
-   *
-   * @member MediaError#MEDIA_ERR_SRC_NOT_SUPPORTED
-   * @constant {number}
-   * @default 4
-   */
-  MediaError.MEDIA_ERR_SRC_NOT_SUPPORTED = 4;
-
-  /**
-   * W3C error code for any time that a source is not supported.
-   *
-   * @member MediaError.MEDIA_ERR_SRC_NOT_SUPPORTED
-   * @constant {number}
-   * @default 4
-   */
-  MediaError.prototype.MEDIA_ERR_SRC_NOT_SUPPORTED = 4;
-
-  /**
-   * W3C error code for any time that a source is encrypted.
-   *
-   * @member MediaError#MEDIA_ERR_ENCRYPTED
-   * @constant {number}
-   * @default 5
-   */
-  MediaError.MEDIA_ERR_ENCRYPTED = 5;
-
-  /**
-   * W3C error code for any time that a source is encrypted.
-   *
-   * @member MediaError.MEDIA_ERR_ENCRYPTED
-   * @constant {number}
-   * @default 5
-   */
-  MediaError.prototype.MEDIA_ERR_ENCRYPTED = 5;
-
-  var tuple = SafeParseTuple;
-  function SafeParseTuple(obj, reviver) {
-    var json;
-    var error = null;
-    try {
-      json = JSON.parse(obj, reviver);
-    } catch (err) {
-      error = err;
-    }
-    return [error, json];
-  }
-
-  /**
-   * Returns whether an object is `Promise`-like (i.e. has a `then` method).
-   *
-   * @param  {Object}  value
-   *         An object that may or may not be `Promise`-like.
-   *
-   * @return {boolean}
-   *         Whether or not the object is `Promise`-like.
-   */
-  function isPromise(value) {
-    return value !== undefined && value !== null && typeof value.then === 'function';
-  }
-
-  /**
-   * Silence a Promise-like object.
-   *
-   * This is useful for avoiding non-harmful, but potentially confusing "uncaught
-   * play promise" rejection error messages.
-   *
-   * @param  {Object} value
-   *         An object that may or may not be `Promise`-like.
-   */
-  function silencePromise(value) {
-    if (isPromise(value)) {
-      value.then(null, e => {});
-    }
-  }
-
-  /**
-   * @file text-track-list-converter.js Utilities for capturing text track state and
-   * re-creating tracks based on a capture.
-   *
-   * @module text-track-list-converter
-   */
-
-  /**
-   * Examine a single {@link TextTrack} and return a JSON-compatible javascript object that
-   * represents the {@link TextTrack}'s state.
-   *
-   * @param {TextTrack} track
-   *        The text track to query.
-   *
-   * @return {Object}
-   *         A serializable javascript representation of the TextTrack.
-   * @private
-   */
-  const trackToJson_ = function (track) {
-    const ret = ['kind', 'label', 'language', 'id', 'inBandMetadataTrackDispatchType', 'mode', 'src'].reduce((acc, prop, i) => {
-      if (track[prop]) {
-        acc[prop] = track[prop];
-      }
-      return acc;
-    }, {
-      cues: track.cues && Array.prototype.map.call(track.cues, function (cue) {
-        return {
-          startTime: cue.startTime,
-          endTime: cue.endTime,
-          text: cue.text,
-          id: cue.id
-        };
-      })
-    });
-    return ret;
-  };
-
-  /**
-   * Examine a {@link Tech} and return a JSON-compatible javascript array that represents the
-   * state of all {@link TextTrack}s currently configured. The return array is compatible with
-   * {@link text-track-list-converter:jsonToTextTracks}.
-   *
-   * @param { import('../tech/tech').default } tech
-   *        The tech object to query
-   *
-   * @return {Array}
-   *         A serializable javascript representation of the {@link Tech}s
-   *         {@link TextTrackList}.
-   */
-  const textTracksToJson = function (tech) {
-    const trackEls = tech.$$('track');
-    const trackObjs = Array.prototype.map.call(trackEls, t => t.track);
-    const tracks = Array.prototype.map.call(trackEls, function (trackEl) {
-      const json = trackToJson_(trackEl.track);
-      if (trackEl.src) {
-        json.src = trackEl.src;
-      }
-      return json;
-    });
-    return tracks.concat(Array.prototype.filter.call(tech.textTracks(), function (track) {
-      return trackObjs.indexOf(track) === -1;
-    }).map(trackToJson_));
-  };
-
-  /**
-   * Create a set of remote {@link TextTrack}s on a {@link Tech} based on an array of javascript
-   * object {@link TextTrack} representations.
-   *
-   * @param {Array} json
-   *        An array of `TextTrack` representation objects, like those that would be
-   *        produced by `textTracksToJson`.
-   *
-   * @param {Tech} tech
-   *        The `Tech` to create the `TextTrack`s on.
-   */
-  const jsonToTextTracks = function (json, tech) {
-    json.forEach(function (track) {
-      const addedTrack = tech.addRemoteTextTrack(track).track;
-      if (!track.src && track.cues) {
-        track.cues.forEach(cue => addedTrack.addCue(cue));
-      }
-    });
-    return tech.textTracks();
-  };
-  var textTrackConverter = {
-    textTracksToJson,
-    jsonToTextTracks,
-    trackToJson_
-  };
-
-  /**
-   * @file modal-dialog.js
-   */
-  const MODAL_CLASS_NAME = 'vjs-modal-dialog';
-
-  /**
-   * The `ModalDialog` displays over the video and its controls, which blocks
-   * interaction with the player until it is closed.
-   *
-   * Modal dialogs include a "Close" button and will close when that button
-   * is activated - or when ESC is pressed anywhere.
-   *
-   * @extends Component
-   */
-  class ModalDialog extends Component$1 {
-    /**
-     * Create an instance of this class.
-     *
-     * @param { import('./player').default } player
-     *        The `Player` that this class should be attached to.
-     *
-     * @param {Object} [options]
-     *        The key/value store of player options.
-     *
-     * @param { import('./utils/dom').ContentDescriptor} [options.content=undefined]
-     *        Provide customized content for this modal.
-     *
-     * @param {string} [options.description]
-     *        A text description for the modal, primarily for accessibility.
-     *
-     * @param {boolean} [options.fillAlways=false]
-     *        Normally, modals are automatically filled only the first time
-     *        they open. This tells the modal to refresh its content
-     *        every time it opens.
-     *
-     * @param {string} [options.label]
-     *        A text label for the modal, primarily for accessibility.
-     *
-     * @param {boolean} [options.pauseOnOpen=true]
-     *        If `true`, playback will will be paused if playing when
-     *        the modal opens, and resumed when it closes.
-     *
-     * @param {boolean} [options.temporary=true]
-     *        If `true`, the modal can only be opened once; it will be
-     *        disposed as soon as it's closed.
-     *
-     * @param {boolean} [options.uncloseable=false]
-     *        If `true`, the user will not be able to close the modal
-     *        through the UI in the normal ways. Programmatic closing is
-     *        still possible.
-     */
-    constructor(player, options) {
-      super(player, options);
-      this.handleKeyDown_ = e => this.handleKeyDown(e);
-      this.close_ = e => this.close(e);
-      this.opened_ = this.hasBeenOpened_ = this.hasBeenFilled_ = false;
-      this.closeable(!this.options_.uncloseable);
-      this.content(this.options_.content);
-
-      // Make sure the contentEl is defined AFTER any children are initialized
-      // because we only want the contents of the modal in the contentEl
-      // (not the UI elements like the close button).
-      this.contentEl_ = createEl('div', {
-        className: `${MODAL_CLASS_NAME}-content`
-      }, {
-        role: 'document'
-      });
-      this.descEl_ = createEl('p', {
-        className: `${MODAL_CLASS_NAME}-description vjs-control-text`,
-        id: this.el().getAttribute('aria-describedby')
-      });
-      textContent(this.descEl_, this.description());
-      this.el_.appendChild(this.descEl_);
-      this.el_.appendChild(this.contentEl_);
-    }
-
-    /**
-     * Create the `ModalDialog`'s DOM element
-     *
-     * @return {Element}
-     *         The DOM element that gets created.
-     */
-    createEl() {
-      return super.createEl('div', {
-        className: this.buildCSSClass(),
-        tabIndex: -1
-      }, {
-        'aria-describedby': `${this.id()}_description`,
-        'aria-hidden': 'true',
-        'aria-label': this.label(),
-        'role': 'dialog',
-        'aria-live': 'polite'
-      });
-    }
-    dispose() {
-      this.contentEl_ = null;
-      this.descEl_ = null;
-      this.previouslyActiveEl_ = null;
-      super.dispose();
-    }
-
-    /**
-     * Builds the default DOM `className`.
-     *
-     * @return {string}
-     *         The DOM `className` for this object.
-     */
-    buildCSSClass() {
-      return `${MODAL_CLASS_NAME} vjs-hidden ${super.buildCSSClass()}`;
-    }
-
-    /**
-     * Returns the label string for this modal. Primarily used for accessibility.
-     *
-     * @return {string}
-     *         the localized or raw label of this modal.
-     */
-    label() {
-      return this.localize(this.options_.label || 'Modal Window');
-    }
-
-    /**
-     * Returns the description string for this modal. Primarily used for
-     * accessibility.
-     *
-     * @return {string}
-     *         The localized or raw description of this modal.
-     */
-    description() {
-      let desc = this.options_.description || this.localize('This is a modal window.');
-
-      // Append a universal closeability message if the modal is closeable.
-      if (this.closeable()) {
-        desc += ' ' + this.localize('This modal can be closed by pressing the Escape key or activating the close button.');
-      }
-      return desc;
-    }
-
-    /**
-     * Opens the modal.
-     *
-     * @fires ModalDialog#beforemodalopen
-     * @fires ModalDialog#modalopen
-     */
-    open() {
-      if (this.opened_) {
-        if (this.options_.fillAlways) {
-          this.fill();
-        }
-        return;
-      }
-      const player = this.player();
-
-      /**
-        * Fired just before a `ModalDialog` is opened.
-        *
-        * @event ModalDialog#beforemodalopen
-        * @type {Event}
-        */
-      this.trigger('beforemodalopen');
-      this.opened_ = true;
-
-      // Fill content if the modal has never opened before and
-      // never been filled.
-      if (this.options_.fillAlways || !this.hasBeenOpened_ && !this.hasBeenFilled_) {
-        this.fill();
-      }
-
-      // If the player was playing, pause it and take note of its previously
-      // playing state.
-      this.wasPlaying_ = !player.paused();
-      if (this.options_.pauseOnOpen && this.wasPlaying_) {
-        player.pause();
-      }
-      this.on('keydown', this.handleKeyDown_);
-
-      // Hide controls and note if they were enabled.
-      this.hadControls_ = player.controls();
-      player.controls(false);
-      this.show();
-      this.conditionalFocus_();
-      this.el().setAttribute('aria-hidden', 'false');
-
-      /**
-        * Fired just after a `ModalDialog` is opened.
-        *
-        * @event ModalDialog#modalopen
-        * @type {Event}
-        */
-      this.trigger('modalopen');
-      this.hasBeenOpened_ = true;
-    }
-
-    /**
-     * If the `ModalDialog` is currently open or closed.
-     *
-     * @param  {boolean} [value]
-     *         If given, it will open (`true`) or close (`false`) the modal.
-     *
-     * @return {boolean}
-     *         the current open state of the modaldialog
-     */
-    opened(value) {
-      if (typeof value === 'boolean') {
-        this[value ? 'open' : 'close']();
-      }
-      return this.opened_;
-    }
-
-    /**
-     * Closes the modal, does nothing if the `ModalDialog` is
-     * not open.
-     *
-     * @fires ModalDialog#beforemodalclose
-     * @fires ModalDialog#modalclose
-     */
-    close() {
-      if (!this.opened_) {
-        return;
-      }
-      const player = this.player();
-
-      /**
-        * Fired just before a `ModalDialog` is closed.
-        *
-        * @event ModalDialog#beforemodalclose
-        * @type {Event}
-        */
-      this.trigger('beforemodalclose');
-      this.opened_ = false;
-      if (this.wasPlaying_ && this.options_.pauseOnOpen) {
-        player.play();
-      }
-      this.off('keydown', this.handleKeyDown_);
-      if (this.hadControls_) {
-        player.controls(true);
-      }
-      this.hide();
-      this.el().setAttribute('aria-hidden', 'true');
-
-      /**
-        * Fired just after a `ModalDialog` is closed.
-        *
-        * @event ModalDialog#modalclose
-        * @type {Event}
-        */
-      this.trigger('modalclose');
-      this.conditionalBlur_();
-      if (this.options_.temporary) {
-        this.dispose();
-      }
-    }
-
-    /**
-     * Check to see if the `ModalDialog` is closeable via the UI.
-     *
-     * @param  {boolean} [value]
-     *         If given as a boolean, it will set the `closeable` option.
-     *
-     * @return {boolean}
-     *         Returns the final value of the closable option.
-     */
-    closeable(value) {
-      if (typeof value === 'boolean') {
-        const closeable = this.closeable_ = !!value;
-        let close = this.getChild('closeButton');
-
-        // If this is being made closeable and has no close button, add one.
-        if (closeable && !close) {
-          // The close button should be a child of the modal - not its
-          // content element, so temporarily change the content element.
-          const temp = this.contentEl_;
-          this.contentEl_ = this.el_;
-          close = this.addChild('closeButton', {
-            controlText: 'Close Modal Dialog'
-          });
-          this.contentEl_ = temp;
-          this.on(close, 'close', this.close_);
-        }
-
-        // If this is being made uncloseable and has a close button, remove it.
-        if (!closeable && close) {
-          this.off(close, 'close', this.close_);
-          this.removeChild(close);
-          close.dispose();
-        }
-      }
-      return this.closeable_;
-    }
-
-    /**
-     * Fill the modal's content element with the modal's "content" option.
-     * The content element will be emptied before this change takes place.
-     */
-    fill() {
-      this.fillWith(this.content());
-    }
-
-    /**
-     * Fill the modal's content element with arbitrary content.
-     * The content element will be emptied before this change takes place.
-     *
-     * @fires ModalDialog#beforemodalfill
-     * @fires ModalDialog#modalfill
-     *
-     * @param { import('./utils/dom').ContentDescriptor} [content]
-     *        The same rules apply to this as apply to the `content` option.
-     */
-    fillWith(content) {
-      const contentEl = this.contentEl();
-      const parentEl = contentEl.parentNode;
-      const nextSiblingEl = contentEl.nextSibling;
-
-      /**
-        * Fired just before a `ModalDialog` is filled with content.
-        *
-        * @event ModalDialog#beforemodalfill
-        * @type {Event}
-        */
-      this.trigger('beforemodalfill');
-      this.hasBeenFilled_ = true;
-
-      // Detach the content element from the DOM before performing
-      // manipulation to avoid modifying the live DOM multiple times.
-      parentEl.removeChild(contentEl);
-      this.empty();
-      insertContent(contentEl, content);
-      /**
-       * Fired just after a `ModalDialog` is filled with content.
-       *
-       * @event ModalDialog#modalfill
-       * @type {Event}
-       */
-      this.trigger('modalfill');
-
-      // Re-inject the re-filled content element.
-      if (nextSiblingEl) {
-        parentEl.insertBefore(contentEl, nextSiblingEl);
-      } else {
-        parentEl.appendChild(contentEl);
-      }
-
-      // make sure that the close button is last in the dialog DOM
-      const closeButton = this.getChild('closeButton');
-      if (closeButton) {
-        parentEl.appendChild(closeButton.el_);
-      }
-    }
-
-    /**
-     * Empties the content element. This happens anytime the modal is filled.
-     *
-     * @fires ModalDialog#beforemodalempty
-     * @fires ModalDialog#modalempty
-     */
-    empty() {
-      /**
-      * Fired just before a `ModalDialog` is emptied.
-      *
-      * @event ModalDialog#beforemodalempty
-      * @type {Event}
-      */
-      this.trigger('beforemodalempty');
-      emptyEl(this.contentEl());
-
-      /**
-      * Fired just after a `ModalDialog` is emptied.
-      *
-      * @event ModalDialog#modalempty
-      * @type {Event}
-      */
-      this.trigger('modalempty');
-    }
-
-    /**
-     * Gets or sets the modal content, which gets normalized before being
-     * rendered into the DOM.
-     *
-     * This does not update the DOM or fill the modal, but it is called during
-     * that process.
-     *
-     * @param  { import('./utils/dom').ContentDescriptor} [value]
-     *         If defined, sets the internal content value to be used on the
-     *         next call(s) to `fill`. This value is normalized before being
-     *         inserted. To "clear" the internal content value, pass `null`.
-     *
-     * @return { import('./utils/dom').ContentDescriptor}
-     *         The current content of the modal dialog
-     */
-    content(value) {
-      if (typeof value !== 'undefined') {
-        this.content_ = value;
-      }
-      return this.content_;
-    }
-
-    /**
-     * conditionally focus the modal dialog if focus was previously on the player.
-     *
-     * @private
-     */
-    conditionalFocus_() {
-      const activeEl = document.activeElement;
-      const playerEl = this.player_.el_;
-      this.previouslyActiveEl_ = null;
-      if (playerEl.contains(activeEl) || playerEl === activeEl) {
-        this.previouslyActiveEl_ = activeEl;
-        this.focus();
-      }
-    }
-
-    /**
-     * conditionally blur the element and refocus the last focused element
-     *
-     * @private
-     */
-    conditionalBlur_() {
-      if (this.previouslyActiveEl_) {
-        this.previouslyActiveEl_.focus();
-        this.previouslyActiveEl_ = null;
-      }
-    }
-
-    /**
-     * Keydown handler. Attached when modal is focused.
-     *
-     * @listens keydown
-     */
-    handleKeyDown(event) {
-      // Do not allow keydowns to reach out of the modal dialog.
-      event.stopPropagation();
-      if (keycode.isEventKey(event, 'Escape') && this.closeable()) {
-        event.preventDefault();
-        this.close();
-        return;
-      }
-
-      // exit early if it isn't a tab key
-      if (!keycode.isEventKey(event, 'Tab')) {
-        return;
-      }
-      const focusableEls = this.focusableEls_();
-      const activeEl = this.el_.querySelector(':focus');
-      let focusIndex;
-      for (let i = 0; i < focusableEls.length; i++) {
-        if (activeEl === focusableEls[i]) {
-          focusIndex = i;
-          break;
-        }
-      }
-      if (document.activeElement === this.el_) {
-        focusIndex = 0;
-      }
-      if (event.shiftKey && focusIndex === 0) {
-        focusableEls[focusableEls.length - 1].focus();
-        event.preventDefault();
-      } else if (!event.shiftKey && focusIndex === focusableEls.length - 1) {
-        focusableEls[0].focus();
-        event.preventDefault();
-      }
-    }
-
-    /**
-     * get all focusable elements
-     *
-     * @private
-     */
-    focusableEls_() {
-      const allChildren = this.el_.querySelectorAll('*');
-      return Array.prototype.filter.call(allChildren, child => {
-        return (child instanceof window.HTMLAnchorElement || child instanceof window.HTMLAreaElement) && child.hasAttribute('href') || (child instanceof window.HTMLInputElement || child instanceof window.HTMLSelectElement || child instanceof window.HTMLTextAreaElement || child instanceof window.HTMLButtonElement) && !child.hasAttribute('disabled') || child instanceof window.HTMLIFrameElement || child instanceof window.HTMLObjectElement || child instanceof window.HTMLEmbedElement || child.hasAttribute('tabindex') && child.getAttribute('tabindex') !== -1 || child.hasAttribute('contenteditable');
-      });
-    }
-  }
-
-  /**
-   * Default options for `ModalDialog` default options.
-   *
-   * @type {Object}
-   * @private
-   */
-  ModalDialog.prototype.options_ = {
-    pauseOnOpen: true,
-    temporary: true
-  };
-  Component$1.registerComponent('ModalDialog', ModalDialog);
-
-  /**
-   * @file track-list.js
-   */
-
-  /**
-   * Common functionaliy between {@link TextTrackList}, {@link AudioTrackList}, and
-   * {@link VideoTrackList}
-   *
-   * @extends EventTarget
-   */
-  class TrackList extends EventTarget$2 {
-    /**
-     * Create an instance of this class
-     *
-     * @param { import('./track').default[] } tracks
-     *        A list of tracks to initialize the list with.
-     *
-     * @abstract
-     */
-    constructor(tracks = []) {
-      super();
-      this.tracks_ = [];
-
-      /**
-       * @memberof TrackList
-       * @member {number} length
-       *         The current number of `Track`s in the this Trackist.
-       * @instance
-       */
-      Object.defineProperty(this, 'length', {
-        get() {
-          return this.tracks_.length;
-        }
-      });
-      for (let i = 0; i < tracks.length; i++) {
-        this.addTrack(tracks[i]);
-      }
-    }
-
-    /**
-     * Add a {@link Track} to the `TrackList`
-     *
-     * @param { import('./track').default } track
-     *        The audio, video, or text track to add to the list.
-     *
-     * @fires TrackList#addtrack
-     */
-    addTrack(track) {
-      const index = this.tracks_.length;
-      if (!('' + index in this)) {
-        Object.defineProperty(this, index, {
-          get() {
-            return this.tracks_[index];
-          }
-        });
-      }
-
-      // Do not add duplicate tracks
-      if (this.tracks_.indexOf(track) === -1) {
-        this.tracks_.push(track);
-        /**
-         * Triggered when a track is added to a track list.
-         *
-         * @event TrackList#addtrack
-         * @type {Event}
-         * @property {Track} track
-         *           A reference to track that was added.
-         */
-        this.trigger({
-          track,
-          type: 'addtrack',
-          target: this
-        });
-      }
-
-      /**
-       * Triggered when a track label is changed.
-       *
-       * @event TrackList#addtrack
-       * @type {Event}
-       * @property {Track} track
-       *           A reference to track that was added.
-       */
-      track.labelchange_ = () => {
-        this.trigger({
-          track,
-          type: 'labelchange',
-          target: this
-        });
-      };
-      if (isEvented(track)) {
-        track.addEventListener('labelchange', track.labelchange_);
-      }
-    }
-
-    /**
-     * Remove a {@link Track} from the `TrackList`
-     *
-     * @param { import('./track').default } rtrack
-     *        The audio, video, or text track to remove from the list.
-     *
-     * @fires TrackList#removetrack
-     */
-    removeTrack(rtrack) {
-      let track;
-      for (let i = 0, l = this.length; i < l; i++) {
-        if (this[i] === rtrack) {
-          track = this[i];
-          if (track.off) {
-            track.off();
-          }
-          this.tracks_.splice(i, 1);
-          break;
-        }
-      }
-      if (!track) {
-        return;
-      }
-
-      /**
-       * Triggered when a track is removed from track list.
-       *
-       * @event TrackList#removetrack
-       * @type {Event}
-       * @property {Track} track
-       *           A reference to track that was removed.
-       */
-      this.trigger({
-        track,
-        type: 'removetrack',
-        target: this
-      });
-    }
-
-    /**
-     * Get a Track from the TrackList by a tracks id
-     *
-     * @param {string} id - the id of the track to get
-     * @method getTrackById
-     * @return { import('./track').default }
-     * @private
-     */
-    getTrackById(id) {
-      let result = null;
-      for (let i = 0, l = this.length; i < l; i++) {
-        const track = this[i];
-        if (track.id === id) {
-          result = track;
-          break;
-        }
-      }
-      return result;
-    }
-  }
-
-  /**
-   * Triggered when a different track is selected/enabled.
-   *
-   * @event TrackList#change
-   * @type {Event}
-   */
-
-  /**
-   * Events that can be called with on + eventName. See {@link EventHandler}.
-   *
-   * @property {Object} TrackList#allowedEvents_
-   * @protected
-   */
-  TrackList.prototype.allowedEvents_ = {
-    change: 'change',
-    addtrack: 'addtrack',
-    removetrack: 'removetrack',
-    labelchange: 'labelchange'
-  };
-
-  // emulate attribute EventHandler support to allow for feature detection
-  for (const event in TrackList.prototype.allowedEvents_) {
-    TrackList.prototype['on' + event] = null;
-  }
-
-  /**
-   * @file audio-track-list.js
-   */
-
-  /**
-   * Anywhere we call this function we diverge from the spec
-   * as we only support one enabled audiotrack at a time
-   *
-   * @param {AudioTrackList} list
-   *        list to work on
-   *
-   * @param { import('./audio-track').default } track
-   *        The track to skip
-   *
-   * @private
-   */
-  const disableOthers$1 = function (list, track) {
-    for (let i = 0; i < list.length; i++) {
-      if (!Object.keys(list[i]).length || track.id === list[i].id) {
-        continue;
-      }
-      // another audio track is enabled, disable it
-      list[i].enabled = false;
-    }
-  };
-
-  /**
-   * The current list of {@link AudioTrack} for a media file.
-   *
-   * @see [Spec]{@link https://html.spec.whatwg.org/multipage/embedded-content.html#audiotracklist}
-   * @extends TrackList
-   */
-  class AudioTrackList extends TrackList {
-    /**
-     * Create an instance of this class.
-     *
-     * @param { import('./audio-track').default[] } [tracks=[]]
-     *        A list of `AudioTrack` to instantiate the list with.
-     */
-    constructor(tracks = []) {
-      // make sure only 1 track is enabled
-      // sorted from last index to first index
-      for (let i = tracks.length - 1; i >= 0; i--) {
-        if (tracks[i].enabled) {
-          disableOthers$1(tracks, tracks[i]);
-          break;
-        }
-      }
-      super(tracks);
-      this.changing_ = false;
-    }
-
-    /**
-     * Add an {@link AudioTrack} to the `AudioTrackList`.
-     *
-     * @param { import('./audio-track').default } track
-     *        The AudioTrack to add to the list
-     *
-     * @fires TrackList#addtrack
-     */
-    addTrack(track) {
-      if (track.enabled) {
-        disableOthers$1(this, track);
-      }
-      super.addTrack(track);
-      // native tracks don't have this
-      if (!track.addEventListener) {
-        return;
-      }
-      track.enabledChange_ = () => {
-        // when we are disabling other tracks (since we don't support
-        // more than one track at a time) we will set changing_
-        // to true so that we don't trigger additional change events
-        if (this.changing_) {
-          return;
-        }
-        this.changing_ = true;
-        disableOthers$1(this, track);
-        this.changing_ = false;
-        this.trigger('change');
-      };
-
-      /**
-       * @listens AudioTrack#enabledchange
-       * @fires TrackList#change
-       */
-      track.addEventListener('enabledchange', track.enabledChange_);
-    }
-    removeTrack(rtrack) {
-      super.removeTrack(rtrack);
-      if (rtrack.removeEventListener && rtrack.enabledChange_) {
-        rtrack.removeEventListener('enabledchange', rtrack.enabledChange_);
-        rtrack.enabledChange_ = null;
-      }
-    }
-  }
-
-  /**
-   * @file video-track-list.js
-   */
-
-  /**
-   * Un-select all other {@link VideoTrack}s that are selected.
-   *
-   * @param {VideoTrackList} list
-   *        list to work on
-   *
-   * @param { import('./video-track').default } track
-   *        The track to skip
-   *
-   * @private
-   */
-  const disableOthers = function (list, track) {
-    for (let i = 0; i < list.length; i++) {
-      if (!Object.keys(list[i]).length || track.id === list[i].id) {
-        continue;
-      }
-      // another video track is enabled, disable it
-      list[i].selected = false;
-    }
-  };
-
-  /**
-   * The current list of {@link VideoTrack} for a video.
-   *
-   * @see [Spec]{@link https://html.spec.whatwg.org/multipage/embedded-content.html#videotracklist}
-   * @extends TrackList
-   */
-  class VideoTrackList extends TrackList {
-    /**
-     * Create an instance of this class.
-     *
-     * @param {VideoTrack[]} [tracks=[]]
-     *        A list of `VideoTrack` to instantiate the list with.
-     */
-    constructor(tracks = []) {
-      // make sure only 1 track is enabled
-      // sorted from last index to first index
-      for (let i = tracks.length - 1; i >= 0; i--) {
-        if (tracks[i].selected) {
-          disableOthers(tracks, tracks[i]);
-          break;
-        }
-      }
-      super(tracks);
-      this.changing_ = false;
-
-      /**
-       * @member {number} VideoTrackList#selectedIndex
-       *         The current index of the selected {@link VideoTrack`}.
-       */
-      Object.defineProperty(this, 'selectedIndex', {
-        get() {
-          for (let i = 0; i < this.length; i++) {
-            if (this[i].selected) {
-              return i;
-            }
-          }
-          return -1;
-        },
-        set() {}
-      });
-    }
-
-    /**
-     * Add a {@link VideoTrack} to the `VideoTrackList`.
-     *
-     * @param { import('./video-track').default } track
-     *        The VideoTrack to add to the list
-     *
-     * @fires TrackList#addtrack
-     */
-    addTrack(track) {
-      if (track.selected) {
-        disableOthers(this, track);
-      }
-      super.addTrack(track);
-      // native tracks don't have this
-      if (!track.addEventListener) {
-        return;
-      }
-      track.selectedChange_ = () => {
-        if (this.changing_) {
-          return;
-        }
-        this.changing_ = true;
-        disableOthers(this, track);
-        this.changing_ = false;
-        this.trigger('change');
-      };
-
-      /**
-       * @listens VideoTrack#selectedchange
-       * @fires TrackList#change
-       */
-      track.addEventListener('selectedchange', track.selectedChange_);
-    }
-    removeTrack(rtrack) {
-      super.removeTrack(rtrack);
-      if (rtrack.removeEventListener && rtrack.selectedChange_) {
-        rtrack.removeEventListener('selectedchange', rtrack.selectedChange_);
-        rtrack.selectedChange_ = null;
-      }
-    }
-  }
-
-  /**
-   * @file text-track-list.js
-   */
-
-  /**
-   * The current list of {@link TextTrack} for a media file.
-   *
-   * @see [Spec]{@link https://html.spec.whatwg.org/multipage/embedded-content.html#texttracklist}
-   * @extends TrackList
-   */
-  class TextTrackList extends TrackList {
-    /**
-     * Add a {@link TextTrack} to the `TextTrackList`
-     *
-     * @param { import('./text-track').default } track
-     *        The text track to add to the list.
-     *
-     * @fires TrackList#addtrack
-     */
-    addTrack(track) {
-      super.addTrack(track);
-      if (!this.queueChange_) {
-        this.queueChange_ = () => this.queueTrigger('change');
-      }
-      if (!this.triggerSelectedlanguagechange) {
-        this.triggerSelectedlanguagechange_ = () => this.trigger('selectedlanguagechange');
-      }
-
-      /**
-       * @listens TextTrack#modechange
-       * @fires TrackList#change
-       */
-      track.addEventListener('modechange', this.queueChange_);
-      const nonLanguageTextTrackKind = ['metadata', 'chapters'];
-      if (nonLanguageTextTrackKind.indexOf(track.kind) === -1) {
-        track.addEventListener('modechange', this.triggerSelectedlanguagechange_);
-      }
-    }
-    removeTrack(rtrack) {
-      super.removeTrack(rtrack);
-
-      // manually remove the event handlers we added
-      if (rtrack.removeEventListener) {
-        if (this.queueChange_) {
-          rtrack.removeEventListener('modechange', this.queueChange_);
-        }
-        if (this.selectedlanguagechange_) {
-          rtrack.removeEventListener('modechange', this.triggerSelectedlanguagechange_);
-        }
-      }
-    }
-  }
-
-  /**
-   * @file html-track-element-list.js
-   */
-
-  /**
-   * The current list of {@link HtmlTrackElement}s.
-   */
-  class HtmlTrackElementList {
-    /**
-     * Create an instance of this class.
-     *
-     * @param {HtmlTrackElement[]} [tracks=[]]
-     *        A list of `HtmlTrackElement` to instantiate the list with.
-     */
-    constructor(trackElements = []) {
-      this.trackElements_ = [];
-
-      /**
-       * @memberof HtmlTrackElementList
-       * @member {number} length
-       *         The current number of `Track`s in the this Trackist.
-       * @instance
-       */
-      Object.defineProperty(this, 'length', {
-        get() {
-          return this.trackElements_.length;
-        }
-      });
-      for (let i = 0, length = trackElements.length; i < length; i++) {
-        this.addTrackElement_(trackElements[i]);
-      }
-    }
-
-    /**
-     * Add an {@link HtmlTrackElement} to the `HtmlTrackElementList`
-     *
-     * @param {HtmlTrackElement} trackElement
-     *        The track element to add to the list.
-     *
-     * @private
-     */
-    addTrackElement_(trackElement) {
-      const index = this.trackElements_.length;
-      if (!('' + index in this)) {
-        Object.defineProperty(this, index, {
-          get() {
-            return this.trackElements_[index];
-          }
-        });
-      }
-
-      // Do not add duplicate elements
-      if (this.trackElements_.indexOf(trackElement) === -1) {
-        this.trackElements_.push(trackElement);
-      }
-    }
-
-    /**
-     * Get an {@link HtmlTrackElement} from the `HtmlTrackElementList` given an
-     * {@link TextTrack}.
-     *
-     * @param {TextTrack} track
-     *        The track associated with a track element.
-     *
-     * @return {HtmlTrackElement|undefined}
-     *         The track element that was found or undefined.
-     *
-     * @private
-     */
-    getTrackElementByTrack_(track) {
-      let trackElement_;
-      for (let i = 0, length = this.trackElements_.length; i < length; i++) {
-        if (track === this.trackElements_[i].track) {
-          trackElement_ = this.trackElements_[i];
-          break;
-        }
-      }
-      return trackElement_;
-    }
-
-    /**
-     * Remove a {@link HtmlTrackElement} from the `HtmlTrackElementList`
-     *
-     * @param {HtmlTrackElement} trackElement
-     *        The track element to remove from the list.
-     *
-     * @private
-     */
-    removeTrackElement_(trackElement) {
-      for (let i = 0, length = this.trackElements_.length; i < length; i++) {
-        if (trackElement === this.trackElements_[i]) {
-          if (this.trackElements_[i].track && typeof this.trackElements_[i].track.off === 'function') {
-            this.trackElements_[i].track.off();
-          }
-          if (typeof this.trackElements_[i].off === 'function') {
-            this.trackElements_[i].off();
-          }
-          this.trackElements_.splice(i, 1);
-          break;
-        }
-      }
-    }
-  }
-
-  /**
-   * @file text-track-cue-list.js
-   */
-
-  /**
-   * @typedef {Object} TextTrackCueList~TextTrackCue
-   *
-   * @property {string} id
-   *           The unique id for this text track cue
-   *
-   * @property {number} startTime
-   *           The start time for this text track cue
-   *
-   * @property {number} endTime
-   *           The end time for this text track cue
-   *
-   * @property {boolean} pauseOnExit
-   *           Pause when the end time is reached if true.
-   *
-   * @see [Spec]{@link https://html.spec.whatwg.org/multipage/embedded-content.html#texttrackcue}
-   */
-
-  /**
-   * A List of TextTrackCues.
-   *
-   * @see [Spec]{@link https://html.spec.whatwg.org/multipage/embedded-content.html#texttrackcuelist}
-   */
-  class TextTrackCueList {
-    /**
-     * Create an instance of this class..
-     *
-     * @param {Array} cues
-     *        A list of cues to be initialized with
-     */
-    constructor(cues) {
-      TextTrackCueList.prototype.setCues_.call(this, cues);
-
-      /**
-       * @memberof TextTrackCueList
-       * @member {number} length
-       *         The current number of `TextTrackCue`s in the TextTrackCueList.
-       * @instance
-       */
-      Object.defineProperty(this, 'length', {
-        get() {
-          return this.length_;
-        }
-      });
-    }
-
-    /**
-     * A setter for cues in this list. Creates getters
-     * an an index for the cues.
-     *
-     * @param {Array} cues
-     *        An array of cues to set
-     *
-     * @private
-     */
-    setCues_(cues) {
-      const oldLength = this.length || 0;
-      let i = 0;
-      const l = cues.length;
-      this.cues_ = cues;
-      this.length_ = cues.length;
-      const defineProp = function (index) {
-        if (!('' + index in this)) {
-          Object.defineProperty(this, '' + index, {
-            get() {
-              return this.cues_[index];
-            }
-          });
-        }
-      };
-      if (oldLength < l) {
-        i = oldLength;
-        for (; i < l; i++) {
-          defineProp.call(this, i);
-        }
-      }
-    }
-
-    /**
-     * Get a `TextTrackCue` that is currently in the `TextTrackCueList` by id.
-     *
-     * @param {string} id
-     *        The id of the cue that should be searched for.
-     *
-     * @return {TextTrackCueList~TextTrackCue|null}
-     *         A single cue or null if none was found.
-     */
-    getCueById(id) {
-      let result = null;
-      for (let i = 0, l = this.length; i < l; i++) {
-        const cue = this[i];
-        if (cue.id === id) {
-          result = cue;
-          break;
-        }
-      }
-      return result;
-    }
-  }
-
-  /**
-   * @file track-kinds.js
-   */
-
-  /**
-   * All possible `VideoTrackKind`s
-   *
-   * @see https://html.spec.whatwg.org/multipage/embedded-content.html#dom-videotrack-kind
-   * @typedef VideoTrack~Kind
-   * @enum
-   */
-  const VideoTrackKind = {
-    alternative: 'alternative',
-    captions: 'captions',
-    main: 'main',
-    sign: 'sign',
-    subtitles: 'subtitles',
-    commentary: 'commentary'
-  };
-
-  /**
-   * All possible `AudioTrackKind`s
-   *
-   * @see https://html.spec.whatwg.org/multipage/embedded-content.html#dom-audiotrack-kind
-   * @typedef AudioTrack~Kind
-   * @enum
-   */
-  const AudioTrackKind = {
-    'alternative': 'alternative',
-    'descriptions': 'descriptions',
-    'main': 'main',
-    'main-desc': 'main-desc',
-    'translation': 'translation',
-    'commentary': 'commentary'
-  };
-
-  /**
-   * All possible `TextTrackKind`s
-   *
-   * @see https://html.spec.whatwg.org/multipage/embedded-content.html#dom-texttrack-kind
-   * @typedef TextTrack~Kind
-   * @enum
-   */
-  const TextTrackKind = {
-    subtitles: 'subtitles',
-    captions: 'captions',
-    descriptions: 'descriptions',
-    chapters: 'chapters',
-    metadata: 'metadata'
-  };
-
-  /**
-   * All possible `TextTrackMode`s
-   *
-   * @see https://html.spec.whatwg.org/multipage/embedded-content.html#texttrackmode
-   * @typedef TextTrack~Mode
-   * @enum
-   */
-  const TextTrackMode = {
-    disabled: 'disabled',
-    hidden: 'hidden',
-    showing: 'showing'
-  };
-
-  /**
-   * @file track.js
-   */
-
-  /**
-   * A Track class that contains all of the common functionality for {@link AudioTrack},
-   * {@link VideoTrack}, and {@link TextTrack}.
-   *
-   * > Note: This class should not be used directly
-   *
-   * @see {@link https://html.spec.whatwg.org/multipage/embedded-content.html}
-   * @extends EventTarget
-   * @abstract
-   */
-  class Track extends EventTarget$2 {
-    /**
-     * Create an instance of this class.
-     *
-     * @param {Object} [options={}]
-     *        Object of option names and values
-     *
-     * @param {string} [options.kind='']
-     *        A valid kind for the track type you are creating.
-     *
-     * @param {string} [options.id='vjs_track_' + Guid.newGUID()]
-     *        A unique id for this AudioTrack.
-     *
-     * @param {string} [options.label='']
-     *        The menu label for this track.
-     *
-     * @param {string} [options.language='']
-     *        A valid two character language code.
-     *
-     * @abstract
-     */
-    constructor(options = {}) {
-      super();
-      const trackProps = {
-        id: options.id || 'vjs_track_' + newGUID(),
-        kind: options.kind || '',
-        language: options.language || ''
-      };
-      let label = options.label || '';
-
-      /**
-       * @memberof Track
-       * @member {string} id
-       *         The id of this track. Cannot be changed after creation.
-       * @instance
-       *
-       * @readonly
-       */
-
-      /**
-       * @memberof Track
-       * @member {string} kind
-       *         The kind of track that this is. Cannot be changed after creation.
-       * @instance
-       *
-       * @readonly
-       */
-
-      /**
-       * @memberof Track
-       * @member {string} language
-       *         The two letter language code for this track. Cannot be changed after
-       *         creation.
-       * @instance
-       *
-       * @readonly
-       */
-
-      for (const key in trackProps) {
-        Object.defineProperty(this, key, {
-          get() {
-            return trackProps[key];
-          },
-          set() {}
-        });
-      }
-
-      /**
-       * @memberof Track
-       * @member {string} label
-       *         The label of this track. Cannot be changed after creation.
-       * @instance
-       *
-       * @fires Track#labelchange
-       */
-      Object.defineProperty(this, 'label', {
-        get() {
-          return label;
-        },
-        set(newLabel) {
-          if (newLabel !== label) {
-            label = newLabel;
-
-            /**
-             * An event that fires when label changes on this track.
-             *
-             * > Note: This is not part of the spec!
-             *
-             * @event Track#labelchange
-             * @type {Event}
-             */
-            this.trigger('labelchange');
-          }
-        }
-      });
-    }
-  }
-
-  /**
-   * @file url.js
-   * @module url
-   */
-
-  /**
-   * @typedef {Object} url:URLObject
-   *
-   * @property {string} protocol
-   *           The protocol of the url that was parsed.
-   *
-   * @property {string} hostname
-   *           The hostname of the url that was parsed.
-   *
-   * @property {string} port
-   *           The port of the url that was parsed.
-   *
-   * @property {string} pathname
-   *           The pathname of the url that was parsed.
-   *
-   * @property {string} search
-   *           The search query of the url that was parsed.
-   *
-   * @property {string} hash
-   *           The hash of the url that was parsed.
-   *
-   * @property {string} host
-   *           The host of the url that was parsed.
-   */
-
-  /**
-   * Resolve and parse the elements of a URL.
-   *
-   * @function
-   * @param    {String} url
-   *           The url to parse
-   *
-   * @return   {url:URLObject}
-   *           An object of url details
-   */
-  const parseUrl = function (url) {
-    // This entire method can be replace with URL once we are able to drop IE11
-
-    const props = ['protocol', 'hostname', 'port', 'pathname', 'search', 'hash', 'host'];
-
-    // add the url to an anchor and let the browser parse the URL
-    const a = document.createElement('a');
-    a.href = url;
-
-    // Copy the specific URL properties to a new object
-    // This is also needed for IE because the anchor loses its
-    // properties when it's removed from the dom
-    const details = {};
-    for (let i = 0; i < props.length; i++) {
-      details[props[i]] = a[props[i]];
-    }
-
-    // IE adds the port to the host property unlike everyone else. If
-    // a port identifier is added for standard ports, strip it.
-    if (details.protocol === 'http:') {
-      details.host = details.host.replace(/:80$/, '');
-    }
-    if (details.protocol === 'https:') {
-      details.host = details.host.replace(/:443$/, '');
-    }
-    if (!details.protocol) {
-      details.protocol = window.location.protocol;
-    }
-
-    /* istanbul ignore if */
-    if (!details.host) {
-      details.host = window.location.host;
-    }
-    return details;
-  };
-
-  /**
-   * Get absolute version of relative URL.
-   *
-   * @function
-   * @param    {string} url
-   *           URL to make absolute
-   *
-   * @return   {string}
-   *           Absolute URL
-   *
-   * @see      http://stackoverflow.com/questions/470832/getting-an-absolute-url-from-a-relative-one-ie6-issue
-   */
-  const getAbsoluteURL = function (url) {
-    // Check if absolute URL
-    if (!url.match(/^https?:\/\//)) {
-      // Add the url to an anchor and let the browser parse it to convert to an absolute url
-      const a = document.createElement('a');
-      a.href = url;
-      url = a.href;
-    }
-    return url;
-  };
-
-  /**
-   * Returns the extension of the passed file name. It will return an empty string
-   * if passed an invalid path.
-   *
-   * @function
-   * @param    {string} path
-   *           The fileName path like '/path/to/file.mp4'
-   *
-   * @return  {string}
-   *           The extension in lower case or an empty string if no
-   *           extension could be found.
-   */
-  const getFileExtension = function (path) {
-    if (typeof path === 'string') {
-      const splitPathRe = /^(\/?)([\s\S]*?)((?:\.{1,2}|[^\/]+?)(\.([^\.\/\?]+)))(?:[\/]*|[\?].*)$/;
-      const pathParts = splitPathRe.exec(path);
-      if (pathParts) {
-        return pathParts.pop().toLowerCase();
-      }
-    }
-    return '';
-  };
-
-  /**
-   * Returns whether the url passed is a cross domain request or not.
-   *
-   * @function
-   * @param    {string} url
-   *           The url to check.
-   *
-   * @param    {Object} [winLoc]
-   *           the domain to check the url against, defaults to window.location
-   *
-   * @param    {string} [winLoc.protocol]
-   *           The window location protocol defaults to window.location.protocol
-   *
-   * @param    {string} [winLoc.host]
-   *           The window location host defaults to window.location.host
-   *
-   * @return   {boolean}
-   *           Whether it is a cross domain request or not.
-   */
-  const isCrossOrigin = function (url, winLoc = window.location) {
-    const urlInfo = parseUrl(url);
-
-    // IE8 protocol relative urls will return ':' for protocol
-    const srcProtocol = urlInfo.protocol === ':' ? winLoc.protocol : urlInfo.protocol;
-
-    // Check if url is for another domain/origin
-    // IE8 doesn't know location.origin, so we won't rely on it here
-    const crossOrigin = srcProtocol + urlInfo.host !== winLoc.protocol + winLoc.host;
-    return crossOrigin;
-  };
-
-  var Url = /*#__PURE__*/Object.freeze({
-    __proto__: null,
-    parseUrl: parseUrl,
-    getAbsoluteURL: getAbsoluteURL,
-    getFileExtension: getFileExtension,
-    isCrossOrigin: isCrossOrigin
-  });
-
-  var win;
-  if (typeof window !== "undefined") {
-    win = window;
-  } else if (typeof commonjsGlobal !== "undefined") {
-    win = commonjsGlobal;
-  } else if (typeof self !== "undefined") {
-    win = self;
-  } else {
-    win = {};
-  }
-  var window_1 = win;
-
-  var _extends_1 = createCommonjsModule(function (module) {
-    function _extends() {
-      module.exports = _extends = Object.assign ? Object.assign.bind() : function (target) {
-        for (var i = 1; i < arguments.length; i++) {
-          var source = arguments[i];
-          for (var key in source) {
-            if (Object.prototype.hasOwnProperty.call(source, key)) {
-              target[key] = source[key];
-            }
-          }
-        }
-        return target;
-      }, module.exports.__esModule = true, module.exports["default"] = module.exports;
-      return _extends.apply(this, arguments);
-    }
-    module.exports = _extends, module.exports.__esModule = true, module.exports["default"] = module.exports;
-  });
-  var _extends$1 = unwrapExports(_extends_1);
-
-  var isFunction_1 = isFunction;
-  var toString = Object.prototype.toString;
-  function isFunction(fn) {
-    if (!fn) {
-      return false;
-    }
-    var string = toString.call(fn);
-    return string === '[object Function]' || typeof fn === 'function' && string !== '[object RegExp]' || typeof window !== 'undefined' && (
-    // IE8 and below
-    fn === window.setTimeout || fn === window.alert || fn === window.confirm || fn === window.prompt);
-  }
-
-  var httpResponseHandler = function httpResponseHandler(callback, decodeResponseBody) {
-    if (decodeResponseBody === void 0) {
-      decodeResponseBody = false;
-    }
-    return function (err, response, responseBody) {
-      // if the XHR failed, return that error
-      if (err) {
-        callback(err);
-        return;
-      } // if the HTTP status code is 4xx or 5xx, the request also failed
-
-      if (response.statusCode >= 400 && response.statusCode <= 599) {
-        var cause = responseBody;
-        if (decodeResponseBody) {
-          if (window_1.TextDecoder) {
-            var charset = getCharset(response.headers && response.headers['content-type']);
-            try {
-              cause = new TextDecoder(charset).decode(responseBody);
-            } catch (e) {}
-          } else {
-            cause = String.fromCharCode.apply(null, new Uint8Array(responseBody));
-          }
-        }
-        callback({
-          cause: cause
-        });
-        return;
-      } // otherwise, request succeeded
-
-      callback(null, responseBody);
-    };
-  };
-  function getCharset(contentTypeHeader) {
-    if (contentTypeHeader === void 0) {
-      contentTypeHeader = '';
-    }
-    return contentTypeHeader.toLowerCase().split(';').reduce(function (charset, contentType) {
-      var _contentType$split = contentType.split('='),
-        type = _contentType$split[0],
-        value = _contentType$split[1];
-      if (type.trim() === 'charset') {
-        return value.trim();
-      }
-      return charset;
-    }, 'utf-8');
-  }
-  var httpHandler = httpResponseHandler;
-
-  createXHR.httpHandler = httpHandler;
-  /**
-   * @license
-   * slighly modified parse-headers 2.0.2 <https://github.com/kesla/parse-headers/>
-   * Copyright (c) 2014 David Björklund
-   * Available under the MIT license
-   * <https://github.com/kesla/parse-headers/blob/master/LICENCE>
-   */
-
-  var parseHeaders = function parseHeaders(headers) {
-    var result = {};
-    if (!headers) {
-      return result;
-    }
-    headers.trim().split('\n').forEach(function (row) {
-      var index = row.indexOf(':');
-      var key = row.slice(0, index).trim().toLowerCase();
-      var value = row.slice(index + 1).trim();
-      if (typeof result[key] === 'undefined') {
-        result[key] = value;
-      } else if (Array.isArray(result[key])) {
-        result[key].push(value);
-      } else {
-        result[key] = [result[key], value];
-      }
-    });
-    return result;
-  };
-  var lib = createXHR; // Allow use of default import syntax in TypeScript
-
-  var default_1 = createXHR;
-  createXHR.XMLHttpRequest = window_1.XMLHttpRequest || noop$1;
-  createXHR.XDomainRequest = "withCredentials" in new createXHR.XMLHttpRequest() ? createXHR.XMLHttpRequest : window_1.XDomainRequest;
-  forEachArray(["get", "put", "post", "patch", "head", "delete"], function (method) {
-    createXHR[method === "delete" ? "del" : method] = function (uri, options, callback) {
-      options = initParams(uri, options, callback);
-      options.method = method.toUpperCase();
-      return _createXHR(options);
-    };
-  });
-  function forEachArray(array, iterator) {
-    for (var i = 0; i < array.length; i++) {
-      iterator(array[i]);
-    }
-  }
-  function isEmpty(obj) {
-    for (var i in obj) {
-      if (obj.hasOwnProperty(i)) return false;
-    }
-    return true;
-  }
-  function initParams(uri, options, callback) {
-    var params = uri;
-    if (isFunction_1(options)) {
-      callback = options;
-      if (typeof uri === "string") {
-        params = {
-          uri: uri
-        };
-      }
-    } else {
-      params = _extends_1({}, options, {
-        uri: uri
-      });
-    }
-    params.callback = callback;
-    return params;
-  }
-  function createXHR(uri, options, callback) {
-    options = initParams(uri, options, callback);
-    return _createXHR(options);
-  }
-  function _createXHR(options) {
-    if (typeof options.callback === "undefined") {
-      throw new Error("callback argument missing");
-    }
-    var called = false;
-    var callback = function cbOnce(err, response, body) {
-      if (!called) {
-        called = true;
-        options.callback(err, response, body);
-      }
-    };
-    function readystatechange() {
-      if (xhr.readyState === 4) {
-        setTimeout(loadFunc, 0);
-      }
-    }
-    function getBody() {
-      // Chrome with requestType=blob throws errors arround when even testing access to responseText
-      var body = undefined;
-      if (xhr.response) {
-        body = xhr.response;
-      } else {
-        body = xhr.responseText || getXml(xhr);
-      }
-      if (isJson) {
-        try {
-          body = JSON.parse(body);
-        } catch (e) {}
-      }
-      return body;
-    }
-    function errorFunc(evt) {
-      clearTimeout(timeoutTimer);
-      if (!(evt instanceof Error)) {
-        evt = new Error("" + (evt || "Unknown XMLHttpRequest Error"));
-      }
-      evt.statusCode = 0;
-      return callback(evt, failureResponse);
-    } // will load the data & process the response in a special response object
-
-    function loadFunc() {
-      if (aborted) return;
-      var status;
-      clearTimeout(timeoutTimer);
-      if (options.useXDR && xhr.status === undefined) {
-        //IE8 CORS GET successful response doesn't have a status field, but body is fine
-        status = 200;
-      } else {
-        status = xhr.status === 1223 ? 204 : xhr.status;
-      }
-      var response = failureResponse;
-      var err = null;
-      if (status !== 0) {
-        response = {
-          body: getBody(),
-          statusCode: status,
-          method: method,
-          headers: {},
-          url: uri,
-          rawRequest: xhr
-        };
-        if (xhr.getAllResponseHeaders) {
-          //remember xhr can in fact be XDR for CORS in IE
-          response.headers = parseHeaders(xhr.getAllResponseHeaders());
-        }
-      } else {
-        err = new Error("Internal XMLHttpRequest Error");
-      }
-      return callback(err, response, response.body);
-    }
-    var xhr = options.xhr || null;
-    if (!xhr) {
-      if (options.cors || options.useXDR) {
-        xhr = new createXHR.XDomainRequest();
-      } else {
-        xhr = new createXHR.XMLHttpRequest();
-      }
-    }
-    var key;
-    var aborted;
-    var uri = xhr.url = options.uri || options.url;
-    var method = xhr.method = options.method || "GET";
-    var body = options.body || options.data;
-    var headers = xhr.headers = options.headers || {};
-    var sync = !!options.sync;
-    var isJson = false;
-    var timeoutTimer;
-    var failureResponse = {
-      body: undefined,
-      headers: {},
-      statusCode: 0,
-      method: method,
-      url: uri,
-      rawRequest: xhr
-    };
-    if ("json" in options && options.json !== false) {
-      isJson = true;
-      headers["accept"] || headers["Accept"] || (headers["Accept"] = "application/json"); //Don't override existing accept header declared by user
-
-      if (method !== "GET" && method !== "HEAD") {
-        headers["content-type"] || headers["Content-Type"] || (headers["Content-Type"] = "application/json"); //Don't override existing accept header declared by user
-
-        body = JSON.stringify(options.json === true ? body : options.json);
-      }
-    }
-    xhr.onreadystatechange = readystatechange;
-    xhr.onload = loadFunc;
-    xhr.onerror = errorFunc; // IE9 must have onprogress be set to a unique function.
-
-    xhr.onprogress = function () {// IE must die
-    };
-    xhr.onabort = function () {
-      aborted = true;
-    };
-    xhr.ontimeout = errorFunc;
-    xhr.open(method, uri, !sync, options.username, options.password); //has to be after open
-
-    if (!sync) {
-      xhr.withCredentials = !!options.withCredentials;
-    } // Cannot set timeout with sync request
-    // not setting timeout on the xhr object, because of old webkits etc. not handling that correctly
-    // both npm's request and jquery 1.x use this kind of timeout, so this is being consistent
-
-    if (!sync && options.timeout > 0) {
-      timeoutTimer = setTimeout(function () {
-        if (aborted) return;
-        aborted = true; //IE9 may still call readystatechange
-
-        xhr.abort("timeout");
-        var e = new Error("XMLHttpRequest timeout");
-        e.code = "ETIMEDOUT";
-        errorFunc(e);
-      }, options.timeout);
-    }
-    if (xhr.setRequestHeader) {
-      for (key in headers) {
-        if (headers.hasOwnProperty(key)) {
-          xhr.setRequestHeader(key, headers[key]);
-        }
-      }
-    } else if (options.headers && !isEmpty(options.headers)) {
-      throw new Error("Headers cannot be set on an XDomainRequest object");
-    }
-    if ("responseType" in options) {
-      xhr.responseType = options.responseType;
-    }
-    if ("beforeSend" in options && typeof options.beforeSend === "function") {
-      options.beforeSend(xhr);
-    } // Microsoft Edge browser sends "undefined" when send is called with undefined value.
-    // XMLHttpRequest spec says to pass null as body to indicate no body
-    // See https://github.com/naugtur/xhr/issues/100.
-
-    xhr.send(body || null);
-    return xhr;
-  }
-  function getXml(xhr) {
-    // xhr.responseXML will throw Exception "InvalidStateError" or "DOMException"
-    // See https://developer.mozilla.org/en-US/docs/Web/API/XMLHttpRequest/responseXML.
-    try {
-      if (xhr.responseType === "document") {
-        return xhr.responseXML;
-      }
-      var firefoxBugTakenEffect = xhr.responseXML && xhr.responseXML.documentElement.nodeName === "parsererror";
-      if (xhr.responseType === "" && !firefoxBugTakenEffect) {
-        return xhr.responseXML;
-      }
-    } catch (e) {}
-    return null;
-  }
-  function noop$1() {}
-  lib.default = default_1;
-
-  /**
-   * @file text-track.js
-   */
-
-  /**
-   * Takes a webvtt file contents and parses it into cues
-   *
-   * @param {string} srcContent
-   *        webVTT file contents
-   *
-   * @param {TextTrack} track
-   *        TextTrack to add cues to. Cues come from the srcContent.
-   *
-   * @private
-   */
-  const parseCues = function (srcContent, track) {
-    const parser = new window.WebVTT.Parser(window, window.vttjs, window.WebVTT.StringDecoder());
-    const errors = [];
-    parser.oncue = function (cue) {
-      track.addCue(cue);
-    };
-    parser.onparsingerror = function (error) {
-      errors.push(error);
-    };
-    parser.onflush = function () {
-      track.trigger({
-        type: 'loadeddata',
-        target: track
-      });
-    };
-    parser.parse(srcContent);
-    if (errors.length > 0) {
-      if (window.console && window.console.groupCollapsed) {
-        window.console.groupCollapsed(`Text Track parsing errors for ${track.src}`);
-      }
-      errors.forEach(error => log$1.error(error));
-      if (window.console && window.console.groupEnd) {
-        window.console.groupEnd();
-      }
-    }
-    parser.flush();
-  };
-
-  /**
-   * Load a `TextTrack` from a specified url.
-   *
-   * @param {string} src
-   *        Url to load track from.
-   *
-   * @param {TextTrack} track
-   *        Track to add cues to. Comes from the content at the end of `url`.
-   *
-   * @private
-   */
-  const loadTrack = function (src, track) {
-    const opts = {
-      uri: src
-    };
-    const crossOrigin = isCrossOrigin(src);
-    if (crossOrigin) {
-      opts.cors = crossOrigin;
-    }
-    const withCredentials = track.tech_.crossOrigin() === 'use-credentials';
-    if (withCredentials) {
-      opts.withCredentials = withCredentials;
-    }
-    lib(opts, bind_(this, function (err, response, responseBody) {
-      if (err) {
-        return log$1.error(err, response);
-      }
-      track.loaded_ = true;
-
-      // Make sure that vttjs has loaded, otherwise, wait till it finished loading
-      // NOTE: this is only used for the alt/video.novtt.js build
-      if (typeof window.WebVTT !== 'function') {
-        if (track.tech_) {
-          // to prevent use before define eslint error, we define loadHandler
-          // as a let here
-          track.tech_.any(['vttjsloaded', 'vttjserror'], event => {
-            if (event.type === 'vttjserror') {
-              log$1.error(`vttjs failed to load, stopping trying to process ${track.src}`);
-              return;
-            }
-            return parseCues(responseBody, track);
-          });
-        }
-      } else {
-        parseCues(responseBody, track);
-      }
-    }));
-  };
-
-  /**
-   * A representation of a single `TextTrack`.
-   *
-   * @see [Spec]{@link https://html.spec.whatwg.org/multipage/embedded-content.html#texttrack}
-   * @extends Track
-   */
-  class TextTrack extends Track {
-    /**
-     * Create an instance of this class.
-     *
-     * @param {Object} options={}
-     *        Object of option names and values
-     *
-     * @param { import('../tech/tech').default } options.tech
-     *        A reference to the tech that owns this TextTrack.
-     *
-     * @param {TextTrack~Kind} [options.kind='subtitles']
-     *        A valid text track kind.
-     *
-     * @param {TextTrack~Mode} [options.mode='disabled']
-     *        A valid text track mode.
-     *
-     * @param {string} [options.id='vjs_track_' + Guid.newGUID()]
-     *        A unique id for this TextTrack.
-     *
-     * @param {string} [options.label='']
-     *        The menu label for this track.
-     *
-     * @param {string} [options.language='']
-     *        A valid two character language code.
-     *
-     * @param {string} [options.srclang='']
-     *        A valid two character language code. An alternative, but deprioritized
-     *        version of `options.language`
-     *
-     * @param {string} [options.src]
-     *        A url to TextTrack cues.
-     *
-     * @param {boolean} [options.default]
-     *        If this track should default to on or off.
-     */
-    constructor(options = {}) {
-      if (!options.tech) {
-        throw new Error('A tech was not provided.');
-      }
-      const settings = merge$2(options, {
-        kind: TextTrackKind[options.kind] || 'subtitles',
-        language: options.language || options.srclang || ''
-      });
-      let mode = TextTrackMode[settings.mode] || 'disabled';
-      const default_ = settings.default;
-      if (settings.kind === 'metadata' || settings.kind === 'chapters') {
-        mode = 'hidden';
-      }
-      super(settings);
-      this.tech_ = settings.tech;
-      this.cues_ = [];
-      this.activeCues_ = [];
-      this.preload_ = this.tech_.preloadTextTracks !== false;
-      const cues = new TextTrackCueList(this.cues_);
-      const activeCues = new TextTrackCueList(this.activeCues_);
-      let changed = false;
-      this.timeupdateHandler = bind_(this, function (event = {}) {
-        if (this.tech_.isDisposed()) {
-          return;
-        }
-        if (!this.tech_.isReady_) {
-          if (event.type !== 'timeupdate') {
-            this.rvf_ = this.tech_.requestVideoFrameCallback(this.timeupdateHandler);
-          }
-          return;
-        }
-
-        // Accessing this.activeCues for the side-effects of updating itself
-        // due to its nature as a getter function. Do not remove or cues will
-        // stop updating!
-        // Use the setter to prevent deletion from uglify (pure_getters rule)
-        this.activeCues = this.activeCues;
-        if (changed) {
-          this.trigger('cuechange');
-          changed = false;
-        }
-        if (event.type !== 'timeupdate') {
-          this.rvf_ = this.tech_.requestVideoFrameCallback(this.timeupdateHandler);
-        }
-      });
-      const disposeHandler = () => {
-        this.stopTracking();
-      };
-      this.tech_.one('dispose', disposeHandler);
-      if (mode !== 'disabled') {
-        this.startTracking();
-      }
-      Object.defineProperties(this, {
-        /**
-         * @memberof TextTrack
-         * @member {boolean} default
-         *         If this track was set to be on or off by default. Cannot be changed after
-         *         creation.
-         * @instance
-         *
-         * @readonly
-         */
-        default: {
-          get() {
-            return default_;
-          },
-          set() {}
-        },
-        /**
-         * @memberof TextTrack
-         * @member {string} mode
-         *         Set the mode of this TextTrack to a valid {@link TextTrack~Mode}. Will
-         *         not be set if setting to an invalid mode.
-         * @instance
-         *
-         * @fires TextTrack#modechange
-         */
-        mode: {
-          get() {
-            return mode;
-          },
-          set(newMode) {
-            if (!TextTrackMode[newMode]) {
-              return;
-            }
-            if (mode === newMode) {
-              return;
-            }
-            mode = newMode;
-            if (!this.preload_ && mode !== 'disabled' && this.cues.length === 0) {
-              // On-demand load.
-              loadTrack(this.src, this);
-            }
-            this.stopTracking();
-            if (mode !== 'disabled') {
-              this.startTracking();
-            }
-            /**
-             * An event that fires when mode changes on this track. This allows
-             * the TextTrackList that holds this track to act accordingly.
-             *
-             * > Note: This is not part of the spec!
-             *
-             * @event TextTrack#modechange
-             * @type {Event}
-             */
-            this.trigger('modechange');
-          }
-        },
-        /**
-         * @memberof TextTrack
-         * @member {TextTrackCueList} cues
-         *         The text track cue list for this TextTrack.
-         * @instance
-         */
-        cues: {
-          get() {
-            if (!this.loaded_) {
-              return null;
-            }
-            return cues;
-          },
-          set() {}
-        },
-        /**
-         * @memberof TextTrack
-         * @member {TextTrackCueList} activeCues
-         *         The list text track cues that are currently active for this TextTrack.
-         * @instance
-         */
-        activeCues: {
-          get() {
-            if (!this.loaded_) {
-              return null;
-            }
-
-            // nothing to do
-            if (this.cues.length === 0) {
-              return activeCues;
-            }
-            const ct = this.tech_.currentTime();
-            const active = [];
-            for (let i = 0, l = this.cues.length; i < l; i++) {
-              const cue = this.cues[i];
-              if (cue.startTime <= ct && cue.endTime >= ct) {
-                active.push(cue);
-              }
-            }
-            changed = false;
-            if (active.length !== this.activeCues_.length) {
-              changed = true;
-            } else {
-              for (let i = 0; i < active.length; i++) {
-                if (this.activeCues_.indexOf(active[i]) === -1) {
-                  changed = true;
-                }
-              }
-            }
-            this.activeCues_ = active;
-            activeCues.setCues_(this.activeCues_);
-            return activeCues;
-          },
-          // /!\ Keep this setter empty (see the timeupdate handler above)
-          set() {}
-        }
-      });
-      if (settings.src) {
-        this.src = settings.src;
-        if (!this.preload_) {
-          // Tracks will load on-demand.
-          // Act like we're loaded for other purposes.
-          this.loaded_ = true;
-        }
-        if (this.preload_ || settings.kind !== 'subtitles' && settings.kind !== 'captions') {
-          loadTrack(this.src, this);
-        }
-      } else {
-        this.loaded_ = true;
-      }
-    }
-    startTracking() {
-      // More precise cues based on requestVideoFrameCallback with a requestAnimationFram fallback
-      this.rvf_ = this.tech_.requestVideoFrameCallback(this.timeupdateHandler);
-      // Also listen to timeupdate in case rVFC/rAF stops (window in background, audio in video el)
-      this.tech_.on('timeupdate', this.timeupdateHandler);
-    }
-    stopTracking() {
-      if (this.rvf_) {
-        this.tech_.cancelVideoFrameCallback(this.rvf_);
-        this.rvf_ = undefined;
-      }
-      this.tech_.off('timeupdate', this.timeupdateHandler);
-    }
-
-    /**
-     * Add a cue to the internal list of cues.
-     *
-     * @param {TextTrack~Cue} cue
-     *        The cue to add to our internal list
-     */
-    addCue(originalCue) {
-      let cue = originalCue;
-
-      // Testing if the cue is a VTTCue in a way that survives minification
-      if (!('getCueAsHTML' in cue)) {
-        cue = new window.vttjs.VTTCue(originalCue.startTime, originalCue.endTime, originalCue.text);
-        for (const prop in originalCue) {
-          if (!(prop in cue)) {
-            cue[prop] = originalCue[prop];
-          }
-        }
-
-        // make sure that `id` is copied over
-        cue.id = originalCue.id;
-        cue.originalCue_ = originalCue;
-      }
-      const tracks = this.tech_.textTracks();
-      for (let i = 0; i < tracks.length; i++) {
-        if (tracks[i] !== this) {
-          tracks[i].removeCue(cue);
-        }
-      }
-      this.cues_.push(cue);
-      this.cues.setCues_(this.cues_);
-    }
-
-    /**
-     * Remove a cue from our internal list
-     *
-     * @param {TextTrack~Cue} removeCue
-     *        The cue to remove from our internal list
-     */
-    removeCue(removeCue) {
-      let i = this.cues_.length;
-      while (i--) {
-        const cue = this.cues_[i];
-        if (cue === removeCue || cue.originalCue_ && cue.originalCue_ === removeCue) {
-          this.cues_.splice(i, 1);
-          this.cues.setCues_(this.cues_);
-          break;
-        }
-      }
-    }
-  }
-
-  /**
-   * cuechange - One or more cues in the track have become active or stopped being active.
-   * @protected
-   */
-  TextTrack.prototype.allowedEvents_ = {
-    cuechange: 'cuechange'
-  };
-
-  /**
-   * A representation of a single `AudioTrack`. If it is part of an {@link AudioTrackList}
-   * only one `AudioTrack` in the list will be enabled at a time.
-   *
-   * @see [Spec]{@link https://html.spec.whatwg.org/multipage/embedded-content.html#audiotrack}
-   * @extends Track
-   */
-  class AudioTrack extends Track {
-    /**
-     * Create an instance of this class.
-     *
-     * @param {Object} [options={}]
-     *        Object of option names and values
-     *
-     * @param {AudioTrack~Kind} [options.kind='']
-     *        A valid audio track kind
-     *
-     * @param {string} [options.id='vjs_track_' + Guid.newGUID()]
-     *        A unique id for this AudioTrack.
-     *
-     * @param {string} [options.label='']
-     *        The menu label for this track.
-     *
-     * @param {string} [options.language='']
-     *        A valid two character language code.
-     *
-     * @param {boolean} [options.enabled]
-     *        If this track is the one that is currently playing. If this track is part of
-     *        an {@link AudioTrackList}, only one {@link AudioTrack} will be enabled.
-     */
-    constructor(options = {}) {
-      const settings = merge$2(options, {
-        kind: AudioTrackKind[options.kind] || ''
-      });
-      super(settings);
-      let enabled = false;
-
-      /**
-       * @memberof AudioTrack
-       * @member {boolean} enabled
-       *         If this `AudioTrack` is enabled or not. When setting this will
-       *         fire {@link AudioTrack#enabledchange} if the state of enabled is changed.
-       * @instance
-       *
-       * @fires VideoTrack#selectedchange
-       */
-      Object.defineProperty(this, 'enabled', {
-        get() {
-          return enabled;
-        },
-        set(newEnabled) {
-          // an invalid or unchanged value
-          if (typeof newEnabled !== 'boolean' || newEnabled === enabled) {
-            return;
-          }
-          enabled = newEnabled;
-
-          /**
-           * An event that fires when enabled changes on this track. This allows
-           * the AudioTrackList that holds this track to act accordingly.
-           *
-           * > Note: This is not part of the spec! Native tracks will do
-           *         this internally without an event.
-           *
-           * @event AudioTrack#enabledchange
-           * @type {Event}
-           */
-          this.trigger('enabledchange');
-        }
-      });
-
-      // if the user sets this track to selected then
-      // set selected to that true value otherwise
-      // we keep it false
-      if (settings.enabled) {
-        this.enabled = settings.enabled;
-      }
-      this.loaded_ = true;
-    }
-  }
-
-  /**
-   * A representation of a single `VideoTrack`.
-   *
-   * @see [Spec]{@link https://html.spec.whatwg.org/multipage/embedded-content.html#videotrack}
-   * @extends Track
-   */
-  class VideoTrack extends Track {
-    /**
-     * Create an instance of this class.
-     *
-     * @param {Object} [options={}]
-     *        Object of option names and values
-     *
-     * @param {string} [options.kind='']
-     *        A valid {@link VideoTrack~Kind}
-     *
-     * @param {string} [options.id='vjs_track_' + Guid.newGUID()]
-     *        A unique id for this AudioTrack.
-     *
-     * @param {string} [options.label='']
-     *        The menu label for this track.
-     *
-     * @param {string} [options.language='']
-     *        A valid two character language code.
-     *
-     * @param {boolean} [options.selected]
-     *        If this track is the one that is currently playing.
-     */
-    constructor(options = {}) {
-      const settings = merge$2(options, {
-        kind: VideoTrackKind[options.kind] || ''
-      });
-      super(settings);
-      let selected = false;
-
-      /**
-       * @memberof VideoTrack
-       * @member {boolean} selected
-       *         If this `VideoTrack` is selected or not. When setting this will
-       *         fire {@link VideoTrack#selectedchange} if the state of selected changed.
-       * @instance
-       *
-       * @fires VideoTrack#selectedchange
-       */
-      Object.defineProperty(this, 'selected', {
-        get() {
-          return selected;
-        },
-        set(newSelected) {
-          // an invalid or unchanged value
-          if (typeof newSelected !== 'boolean' || newSelected === selected) {
-            return;
-          }
-          selected = newSelected;
-
-          /**
-           * An event that fires when selected changes on this track. This allows
-           * the VideoTrackList that holds this track to act accordingly.
-           *
-           * > Note: This is not part of the spec! Native tracks will do
-           *         this internally without an event.
-           *
-           * @event VideoTrack#selectedchange
-           * @type {Event}
-           */
-          this.trigger('selectedchange');
-        }
-      });
-
-      // if the user sets this track to selected then
-      // set selected to that true value otherwise
-      // we keep it false
-      if (settings.selected) {
-        this.selected = settings.selected;
-      }
-    }
-  }
-
-  /**
-   * @file html-track-element.js
-   */
-
-  /**
-   * A single track represented in the DOM.
-   *
-   * @see [Spec]{@link https://html.spec.whatwg.org/multipage/embedded-content.html#htmltrackelement}
-   * @extends EventTarget
-   */
-  class HTMLTrackElement extends EventTarget$2 {
-    /**
-     * Create an instance of this class.
-     *
-     * @param {Object} options={}
-     *        Object of option names and values
-     *
-     * @param { import('../tech/tech').default } options.tech
-     *        A reference to the tech that owns this HTMLTrackElement.
-     *
-     * @param {TextTrack~Kind} [options.kind='subtitles']
-     *        A valid text track kind.
-     *
-     * @param {TextTrack~Mode} [options.mode='disabled']
-     *        A valid text track mode.
-     *
-     * @param {string} [options.id='vjs_track_' + Guid.newGUID()]
-     *        A unique id for this TextTrack.
-     *
-     * @param {string} [options.label='']
-     *        The menu label for this track.
-     *
-     * @param {string} [options.language='']
-     *        A valid two character language code.
-     *
-     * @param {string} [options.srclang='']
-     *        A valid two character language code. An alternative, but deprioritized
-     *        version of `options.language`
-     *
-     * @param {string} [options.src]
-     *        A url to TextTrack cues.
-     *
-     * @param {boolean} [options.default]
-     *        If this track should default to on or off.
-     */
-    constructor(options = {}) {
-      super();
-      let readyState;
-      const track = new TextTrack(options);
-      this.kind = track.kind;
-      this.src = track.src;
-      this.srclang = track.language;
-      this.label = track.label;
-      this.default = track.default;
-      Object.defineProperties(this, {
-        /**
-         * @memberof HTMLTrackElement
-         * @member {HTMLTrackElement~ReadyState} readyState
-         *         The current ready state of the track element.
-         * @instance
-         */
-        readyState: {
-          get() {
-            return readyState;
-          }
-        },
-        /**
-         * @memberof HTMLTrackElement
-         * @member {TextTrack} track
-         *         The underlying TextTrack object.
-         * @instance
-         *
-         */
-        track: {
-          get() {
-            return track;
-          }
-        }
-      });
-      readyState = HTMLTrackElement.NONE;
-
-      /**
-       * @listens TextTrack#loadeddata
-       * @fires HTMLTrackElement#load
-       */
-      track.addEventListener('loadeddata', () => {
-        readyState = HTMLTrackElement.LOADED;
-        this.trigger({
-          type: 'load',
-          target: this
-        });
-      });
-    }
-  }
-
-  /**
-   * @protected
-   */
-  HTMLTrackElement.prototype.allowedEvents_ = {
-    load: 'load'
-  };
-
-  /**
-   * The text track not loaded state.
-   *
-   * @type {number}
-   * @static
-   */
-  HTMLTrackElement.NONE = 0;
-
-  /**
-   * The text track loading state.
-   *
-   * @type {number}
-   * @static
-   */
-  HTMLTrackElement.LOADING = 1;
-
-  /**
-   * The text track loaded state.
-   *
-   * @type {number}
-   * @static
-   */
-  HTMLTrackElement.LOADED = 2;
-
-  /**
-   * The text track failed to load state.
-   *
-   * @type {number}
-   * @static
-   */
-  HTMLTrackElement.ERROR = 3;
-
-  /*
-   * This file contains all track properties that are used in
-   * player.js, tech.js, html5.js and possibly other techs in the future.
-   */
-
-  const NORMAL = {
-    audio: {
-      ListClass: AudioTrackList,
-      TrackClass: AudioTrack,
-      capitalName: 'Audio'
-    },
-    video: {
-      ListClass: VideoTrackList,
-      TrackClass: VideoTrack,
-      capitalName: 'Video'
-    },
-    text: {
-      ListClass: TextTrackList,
-      TrackClass: TextTrack,
-      capitalName: 'Text'
-    }
-  };
-  Object.keys(NORMAL).forEach(function (type) {
-    NORMAL[type].getterName = `${type}Tracks`;
-    NORMAL[type].privateName = `${type}Tracks_`;
-  });
-  const REMOTE = {
-    remoteText: {
-      ListClass: TextTrackList,
-      TrackClass: TextTrack,
-      capitalName: 'RemoteText',
-      getterName: 'remoteTextTracks',
-      privateName: 'remoteTextTracks_'
-    },
-    remoteTextEl: {
-      ListClass: HtmlTrackElementList,
-      TrackClass: HTMLTrackElement,
-      capitalName: 'RemoteTextTrackEls',
-      getterName: 'remoteTextTrackEls',
-      privateName: 'remoteTextTrackEls_'
-    }
-  };
-  const ALL = Object.assign({}, NORMAL, REMOTE);
-  REMOTE.names = Object.keys(REMOTE);
-  NORMAL.names = Object.keys(NORMAL);
-  ALL.names = [].concat(REMOTE.names).concat(NORMAL.names);
-
-  var minDoc = {};
-
-  var topLevel = typeof commonjsGlobal !== 'undefined' ? commonjsGlobal : typeof window !== 'undefined' ? window : {};
-  var doccy;
-  if (typeof document !== 'undefined') {
-    doccy = document;
-  } else {
-    doccy = topLevel['__GLOBAL_DOCUMENT_CACHE@4'];
-    if (!doccy) {
-      doccy = topLevel['__GLOBAL_DOCUMENT_CACHE@4'] = minDoc;
-    }
-  }
-  var document_1 = doccy;
-
-  /**
-   * Copyright 2013 vtt.js Contributors
-   *
-   * Licensed under the Apache License, Version 2.0 (the "License");
-   * you may not use this file except in compliance with the License.
-   * You may obtain a copy of the License at
-   *
-   *   http://www.apache.org/licenses/LICENSE-2.0
-   *
-   * Unless required by applicable law or agreed to in writing, software
-   * distributed under the License is distributed on an "AS IS" BASIS,
-   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-   * See the License for the specific language governing permissions and
-   * limitations under the License.
-   */
-
-  /* -*- Mode: Java; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-  /* vim: set shiftwidth=2 tabstop=2 autoindent cindent expandtab: */
-
-  var _objCreate = Object.create || function () {
-    function F() {}
-    return function (o) {
-      if (arguments.length !== 1) {
-        throw new Error('Object.create shim only accepts one parameter.');
-      }
-      F.prototype = o;
-      return new F();
-    };
-  }();
-
-  // Creates a new ParserError object from an errorData object. The errorData
-  // object should have default code and message properties. The default message
-  // property can be overriden by passing in a message parameter.
-  // See ParsingError.Errors below for acceptable errors.
-  function ParsingError(errorData, message) {
-    this.name = "ParsingError";
-    this.code = errorData.code;
-    this.message = message || errorData.message;
-  }
-  ParsingError.prototype = _objCreate(Error.prototype);
-  ParsingError.prototype.constructor = ParsingError;
-
-  // ParsingError metadata for acceptable ParsingErrors.
-  ParsingError.Errors = {
-    BadSignature: {
-      code: 0,
-      message: "Malformed WebVTT signature."
-    },
-    BadTimeStamp: {
-      code: 1,
-      message: "Malformed time stamp."
-    }
-  };
-
-  // Try to parse input as a time stamp.
-  function parseTimeStamp(input) {
-    function computeSeconds(h, m, s, f) {
-      return (h | 0) * 3600 + (m | 0) * 60 + (s | 0) + (f | 0) / 1000;
-    }
-    var m = input.match(/^(\d+):(\d{1,2})(:\d{1,2})?\.(\d{3})/);
-    if (!m) {
-      return null;
-    }
-    if (m[3]) {
-      // Timestamp takes the form of [hours]:[minutes]:[seconds].[milliseconds]
-      return computeSeconds(m[1], m[2], m[3].replace(":", ""), m[4]);
-    } else if (m[1] > 59) {
-      // Timestamp takes the form of [hours]:[minutes].[milliseconds]
-      // First position is hours as it's over 59.
-      return computeSeconds(m[1], m[2], 0, m[4]);
-    } else {
-      // Timestamp takes the form of [minutes]:[seconds].[milliseconds]
-      return computeSeconds(0, m[1], m[2], m[4]);
-    }
-  }
-
-  // A settings object holds key/value pairs and will ignore anything but the first
-  // assignment to a specific key.
-  function Settings() {
-    this.values = _objCreate(null);
-  }
-  Settings.prototype = {
-    // Only accept the first assignment to any key.
-    set: function (k, v) {
-      if (!this.get(k) && v !== "") {
-        this.values[k] = v;
-      }
-    },
-    // Return the value for a key, or a default value.
-    // If 'defaultKey' is passed then 'dflt' is assumed to be an object with
-    // a number of possible default values as properties where 'defaultKey' is
-    // the key of the property that will be chosen; otherwise it's assumed to be
-    // a single value.
-    get: function (k, dflt, defaultKey) {
-      if (defaultKey) {
-        return this.has(k) ? this.values[k] : dflt[defaultKey];
-      }
-      return this.has(k) ? this.values[k] : dflt;
-    },
-    // Check whether we have a value for a key.
-    has: function (k) {
-      return k in this.values;
-    },
-    // Accept a setting if its one of the given alternatives.
-    alt: function (k, v, a) {
-      for (var n = 0; n < a.length; ++n) {
-        if (v === a[n]) {
-          this.set(k, v);
-          break;
-        }
-      }
-    },
-    // Accept a setting if its a valid (signed) integer.
-    integer: function (k, v) {
-      if (/^-?\d+$/.test(v)) {
-        // integer
-        this.set(k, parseInt(v, 10));
-      }
-    },
-    // Accept a setting if its a valid percentage.
-    percent: function (k, v) {
-      if (v.match(/^([\d]{1,3})(\.[\d]*)?%$/)) {
-        v = parseFloat(v);
-        if (v >= 0 && v <= 100) {
-          this.set(k, v);
-          return true;
-        }
-      }
-      return false;
-    }
-  };
-
-  // Helper function to parse input into groups separated by 'groupDelim', and
-  // interprete each group as a key/value pair separated by 'keyValueDelim'.
-  function parseOptions(input, callback, keyValueDelim, groupDelim) {
-    var groups = groupDelim ? input.split(groupDelim) : [input];
-    for (var i in groups) {
-      if (typeof groups[i] !== "string") {
-        continue;
-      }
-      var kv = groups[i].split(keyValueDelim);
-      if (kv.length !== 2) {
-        continue;
-      }
-      var k = kv[0].trim();
-      var v = kv[1].trim();
-      callback(k, v);
-    }
-  }
-  function parseCue(input, cue, regionList) {
-    // Remember the original input if we need to throw an error.
-    var oInput = input;
-    // 4.1 WebVTT timestamp
-    function consumeTimeStamp() {
-      var ts = parseTimeStamp(input);
-      if (ts === null) {
-        throw new ParsingError(ParsingError.Errors.BadTimeStamp, "Malformed timestamp: " + oInput);
-      }
-      // Remove time stamp from input.
-      input = input.replace(/^[^\sa-zA-Z-]+/, "");
-      return ts;
-    }
-
-    // 4.4.2 WebVTT cue settings
-    function consumeCueSettings(input, cue) {
-      var settings = new Settings();
-      parseOptions(input, function (k, v) {
-        switch (k) {
-          case "region":
-            // Find the last region we parsed with the same region id.
-            for (var i = regionList.length - 1; i >= 0; i--) {
-              if (regionList[i].id === v) {
-                settings.set(k, regionList[i].region);
-                break;
-              }
-            }
-            break;
-          case "vertical":
-            settings.alt(k, v, ["rl", "lr"]);
-            break;
-          case "line":
-            var vals = v.split(","),
-              vals0 = vals[0];
-            settings.integer(k, vals0);
-            settings.percent(k, vals0) ? settings.set("snapToLines", false) : null;
-            settings.alt(k, vals0, ["auto"]);
-            if (vals.length === 2) {
-              settings.alt("lineAlign", vals[1], ["start", "center", "end"]);
-            }
-            break;
-          case "position":
-            vals = v.split(",");
-            settings.percent(k, vals[0]);
-            if (vals.length === 2) {
-              settings.alt("positionAlign", vals[1], ["start", "center", "end"]);
-            }
-            break;
-          case "size":
-            settings.percent(k, v);
-            break;
-          case "align":
-            settings.alt(k, v, ["start", "center", "end", "left", "right"]);
-            break;
-        }
-      }, /:/, /\s/);
-
-      // Apply default values for any missing fields.
-      cue.region = settings.get("region", null);
-      cue.vertical = settings.get("vertical", "");
-      try {
-        cue.line = settings.get("line", "auto");
-      } catch (e) {}
-      cue.lineAlign = settings.get("lineAlign", "start");
-      cue.snapToLines = settings.get("snapToLines", true);
-      cue.size = settings.get("size", 100);
-      // Safari still uses the old middle value and won't accept center
-      try {
-        cue.align = settings.get("align", "center");
-      } catch (e) {
-        cue.align = settings.get("align", "middle");
-      }
-      try {
-        cue.position = settings.get("position", "auto");
-      } catch (e) {
-        cue.position = settings.get("position", {
-          start: 0,
-          left: 0,
-          center: 50,
-          middle: 50,
-          end: 100,
-          right: 100
-        }, cue.align);
-      }
-      cue.positionAlign = settings.get("positionAlign", {
-        start: "start",
-        left: "start",
-        center: "center",
-        middle: "center",
-        end: "end",
-        right: "end"
-      }, cue.align);
-    }
-    function skipWhitespace() {
-      input = input.replace(/^\s+/, "");
-    }
-
-    // 4.1 WebVTT cue timings.
-    skipWhitespace();
-    cue.startTime = consumeTimeStamp(); // (1) collect cue start time
-    skipWhitespace();
-    if (input.substr(0, 3) !== "-->") {
-      // (3) next characters must match "-->"
-      throw new ParsingError(ParsingError.Errors.BadTimeStamp, "Malformed time stamp (time stamps must be separated by '-->'): " + oInput);
-    }
-    input = input.substr(3);
-    skipWhitespace();
-    cue.endTime = consumeTimeStamp(); // (5) collect cue end time
-
-    // 4.1 WebVTT cue settings list.
-    skipWhitespace();
-    consumeCueSettings(input, cue);
-  }
-
-  // When evaluating this file as part of a Webpack bundle for server
-  // side rendering, `document` is an empty object.
-  var TEXTAREA_ELEMENT = document_1.createElement && document_1.createElement("textarea");
-  var TAG_NAME = {
-    c: "span",
-    i: "i",
-    b: "b",
-    u: "u",
-    ruby: "ruby",
-    rt: "rt",
-    v: "span",
-    lang: "span"
-  };
-
-  // 5.1 default text color
-  // 5.2 default text background color is equivalent to text color with bg_ prefix
-  var DEFAULT_COLOR_CLASS = {
-    white: 'rgba(255,255,255,1)',
-    lime: 'rgba(0,255,0,1)',
-    cyan: 'rgba(0,255,255,1)',
-    red: 'rgba(255,0,0,1)',
-    yellow: 'rgba(255,255,0,1)',
-    magenta: 'rgba(255,0,255,1)',
-    blue: 'rgba(0,0,255,1)',
-    black: 'rgba(0,0,0,1)'
-  };
-  var TAG_ANNOTATION = {
-    v: "title",
-    lang: "lang"
-  };
-  var NEEDS_PARENT = {
-    rt: "ruby"
-  };
-
-  // Parse content into a document fragment.
-  function parseContent(window, input) {
-    function nextToken() {
-      // Check for end-of-string.
-      if (!input) {
-        return null;
-      }
-
-      // Consume 'n' characters from the input.
-      function consume(result) {
-        input = input.substr(result.length);
-        return result;
-      }
-      var m = input.match(/^([^<]*)(<[^>]*>?)?/);
-      // If there is some text before the next tag, return it, otherwise return
-      // the tag.
-      return consume(m[1] ? m[1] : m[2]);
-    }
-    function unescape(s) {
-      TEXTAREA_ELEMENT.innerHTML = s;
-      s = TEXTAREA_ELEMENT.textContent;
-      TEXTAREA_ELEMENT.textContent = "";
-      return s;
-    }
-    function shouldAdd(current, element) {
-      return !NEEDS_PARENT[element.localName] || NEEDS_PARENT[element.localName] === current.localName;
-    }
-
-    // Create an element for this tag.
-    function createElement(type, annotation) {
-      var tagName = TAG_NAME[type];
-      if (!tagName) {
-        return null;
-      }
-      var element = window.document.createElement(tagName);
-      var name = TAG_ANNOTATION[type];
-      if (name && annotation) {
-        element[name] = annotation.trim();
-      }
-      return element;
-    }
-    var rootDiv = window.document.createElement("div"),
-      current = rootDiv,
-      t,
-      tagStack = [];
-    while ((t = nextToken()) !== null) {
-      if (t[0] === '<') {
-        if (t[1] === "/") {
-          // If the closing tag matches, move back up to the parent node.
-          if (tagStack.length && tagStack[tagStack.length - 1] === t.substr(2).replace(">", "")) {
-            tagStack.pop();
-            current = current.parentNode;
-          }
-          // Otherwise just ignore the end tag.
-          continue;
-        }
-        var ts = parseTimeStamp(t.substr(1, t.length - 2));
-        var node;
-        if (ts) {
-          // Timestamps are lead nodes as well.
-          node = window.document.createProcessingInstruction("timestamp", ts);
-          current.appendChild(node);
-          continue;
-        }
-        var m = t.match(/^<([^.\s/0-9>]+)(\.[^\s\\>]+)?([^>\\]+)?(\\?)>?$/);
-        // If we can't parse the tag, skip to the next tag.
-        if (!m) {
-          continue;
-        }
-        // Try to construct an element, and ignore the tag if we couldn't.
-        node = createElement(m[1], m[3]);
-        if (!node) {
-          continue;
-        }
-        // Determine if the tag should be added based on the context of where it
-        // is placed in the cuetext.
-        if (!shouldAdd(current, node)) {
-          continue;
-        }
-        // Set the class list (as a list of classes, separated by space).
-        if (m[2]) {
-          var classes = m[2].split('.');
-          classes.forEach(function (cl) {
-            var bgColor = /^bg_/.test(cl);
-            // slice out `bg_` if it's a background color
-            var colorName = bgColor ? cl.slice(3) : cl;
-            if (DEFAULT_COLOR_CLASS.hasOwnProperty(colorName)) {
-              var propName = bgColor ? 'background-color' : 'color';
-              var propValue = DEFAULT_COLOR_CLASS[colorName];
-              node.style[propName] = propValue;
-            }
-          });
-          node.className = classes.join(' ');
-        }
-        // Append the node to the current node, and enter the scope of the new
-        // node.
-        tagStack.push(m[1]);
-        current.appendChild(node);
-        current = node;
-        continue;
-      }
-
-      // Text nodes are leaf nodes.
-      current.appendChild(window.document.createTextNode(unescape(t)));
-    }
-    return rootDiv;
-  }
-
-  // This is a list of all the Unicode characters that have a strong
-  // right-to-left category. What this means is that these characters are
-  // written right-to-left for sure. It was generated by pulling all the strong
-  // right-to-left characters out of the Unicode data table. That table can
-  // found at: http://www.unicode.org/Public/UNIDATA/UnicodeData.txt
-  var strongRTLRanges = [[0x5be, 0x5be], [0x5c0, 0x5c0], [0x5c3, 0x5c3], [0x5c6, 0x5c6], [0x5d0, 0x5ea], [0x5f0, 0x5f4], [0x608, 0x608], [0x60b, 0x60b], [0x60d, 0x60d], [0x61b, 0x61b], [0x61e, 0x64a], [0x66d, 0x66f], [0x671, 0x6d5], [0x6e5, 0x6e6], [0x6ee, 0x6ef], [0x6fa, 0x70d], [0x70f, 0x710], [0x712, 0x72f], [0x74d, 0x7a5], [0x7b1, 0x7b1], [0x7c0, 0x7ea], [0x7f4, 0x7f5], [0x7fa, 0x7fa], [0x800, 0x815], [0x81a, 0x81a], [0x824, 0x824], [0x828, 0x828], [0x830, 0x83e], [0x840, 0x858], [0x85e, 0x85e], [0x8a0, 0x8a0], [0x8a2, 0x8ac], [0x200f, 0x200f], [0xfb1d, 0xfb1d], [0xfb1f, 0xfb28], [0xfb2a, 0xfb36], [0xfb38, 0xfb3c], [0xfb3e, 0xfb3e], [0xfb40, 0xfb41], [0xfb43, 0xfb44], [0xfb46, 0xfbc1], [0xfbd3, 0xfd3d], [0xfd50, 0xfd8f], [0xfd92, 0xfdc7], [0xfdf0, 0xfdfc], [0xfe70, 0xfe74], [0xfe76, 0xfefc], [0x10800, 0x10805], [0x10808, 0x10808], [0x1080a, 0x10835], [0x10837, 0x10838], [0x1083c, 0x1083c], [0x1083f, 0x10855], [0x10857, 0x1085f], [0x10900, 0x1091b], [0x10920, 0x10939], [0x1093f, 0x1093f], [0x10980, 0x109b7], [0x109be, 0x109bf], [0x10a00, 0x10a00], [0x10a10, 0x10a13], [0x10a15, 0x10a17], [0x10a19, 0x10a33], [0x10a40, 0x10a47], [0x10a50, 0x10a58], [0x10a60, 0x10a7f], [0x10b00, 0x10b35], [0x10b40, 0x10b55], [0x10b58, 0x10b72], [0x10b78, 0x10b7f], [0x10c00, 0x10c48], [0x1ee00, 0x1ee03], [0x1ee05, 0x1ee1f], [0x1ee21, 0x1ee22], [0x1ee24, 0x1ee24], [0x1ee27, 0x1ee27], [0x1ee29, 0x1ee32], [0x1ee34, 0x1ee37], [0x1ee39, 0x1ee39], [0x1ee3b, 0x1ee3b], [0x1ee42, 0x1ee42], [0x1ee47, 0x1ee47], [0x1ee49, 0x1ee49], [0x1ee4b, 0x1ee4b], [0x1ee4d, 0x1ee4f], [0x1ee51, 0x1ee52], [0x1ee54, 0x1ee54], [0x1ee57, 0x1ee57], [0x1ee59, 0x1ee59], [0x1ee5b, 0x1ee5b], [0x1ee5d, 0x1ee5d], [0x1ee5f, 0x1ee5f], [0x1ee61, 0x1ee62], [0x1ee64, 0x1ee64], [0x1ee67, 0x1ee6a], [0x1ee6c, 0x1ee72], [0x1ee74, 0x1ee77], [0x1ee79, 0x1ee7c], [0x1ee7e, 0x1ee7e], [0x1ee80, 0x1ee89], [0x1ee8b, 0x1ee9b], [0x1eea1, 0x1eea3], [0x1eea5, 0x1eea9], [0x1eeab, 0x1eebb], [0x10fffd, 0x10fffd]];
-  function isStrongRTLChar(charCode) {
-    for (var i = 0; i < strongRTLRanges.length; i++) {
-      var currentRange = strongRTLRanges[i];
-      if (charCode >= currentRange[0] && charCode <= currentRange[1]) {
-        return true;
-      }
-    }
-    return false;
-  }
-  function determineBidi(cueDiv) {
-    var nodeStack = [],
-      text = "",
-      charCode;
-    if (!cueDiv || !cueDiv.childNodes) {
-      return "ltr";
-    }
-    function pushNodes(nodeStack, node) {
-      for (var i = node.childNodes.length - 1; i >= 0; i--) {
-        nodeStack.push(node.childNodes[i]);
-      }
-    }
-    function nextTextNode(nodeStack) {
-      if (!nodeStack || !nodeStack.length) {
-        return null;
-      }
-      var node = nodeStack.pop(),
-        text = node.textContent || node.innerText;
-      if (text) {
-        // TODO: This should match all unicode type B characters (paragraph
-        // separator characters). See issue #115.
-        var m = text.match(/^.*(\n|\r)/);
-        if (m) {
-          nodeStack.length = 0;
-          return m[0];
-        }
-        return text;
-      }
-      if (node.tagName === "ruby") {
-        return nextTextNode(nodeStack);
-      }
-      if (node.childNodes) {
-        pushNodes(nodeStack, node);
-        return nextTextNode(nodeStack);
-      }
-    }
-    pushNodes(nodeStack, cueDiv);
-    while (text = nextTextNode(nodeStack)) {
-      for (var i = 0; i < text.length; i++) {
-        charCode = text.charCodeAt(i);
-        if (isStrongRTLChar(charCode)) {
-          return "rtl";
-        }
-      }
-    }
-    return "ltr";
-  }
-  function computeLinePos(cue) {
-    if (typeof cue.line === "number" && (cue.snapToLines || cue.line >= 0 && cue.line <= 100)) {
-      return cue.line;
-    }
-    if (!cue.track || !cue.track.textTrackList || !cue.track.textTrackList.mediaElement) {
-      return -1;
-    }
-    var track = cue.track,
-      trackList = track.textTrackList,
-      count = 0;
-    for (var i = 0; i < trackList.length && trackList[i] !== track; i++) {
-      if (trackList[i].mode === "showing") {
-        count++;
-      }
-    }
-    return ++count * -1;
-  }
-  function StyleBox() {}
-
-  // Apply styles to a div. If there is no div passed then it defaults to the
-  // div on 'this'.
-  StyleBox.prototype.applyStyles = function (styles, div) {
-    div = div || this.div;
-    for (var prop in styles) {
-      if (styles.hasOwnProperty(prop)) {
-        div.style[prop] = styles[prop];
-      }
-    }
-  };
-  StyleBox.prototype.formatStyle = function (val, unit) {
-    return val === 0 ? 0 : val + unit;
-  };
-
-  // Constructs the computed display state of the cue (a div). Places the div
-  // into the overlay which should be a block level element (usually a div).
-  function CueStyleBox(window, cue, styleOptions) {
-    StyleBox.call(this);
-    this.cue = cue;
-
-    // Parse our cue's text into a DOM tree rooted at 'cueDiv'. This div will
-    // have inline positioning and will function as the cue background box.
-    this.cueDiv = parseContent(window, cue.text);
-    var styles = {
-      color: "rgba(255, 255, 255, 1)",
-      backgroundColor: "rgba(0, 0, 0, 0.8)",
-      position: "relative",
-      left: 0,
-      right: 0,
-      top: 0,
-      bottom: 0,
-      display: "inline",
-      writingMode: cue.vertical === "" ? "horizontal-tb" : cue.vertical === "lr" ? "vertical-lr" : "vertical-rl",
-      unicodeBidi: "plaintext"
-    };
-    this.applyStyles(styles, this.cueDiv);
-
-    // Create an absolutely positioned div that will be used to position the cue
-    // div. Note, all WebVTT cue-setting alignments are equivalent to the CSS
-    // mirrors of them except middle instead of center on Safari.
-    this.div = window.document.createElement("div");
-    styles = {
-      direction: determineBidi(this.cueDiv),
-      writingMode: cue.vertical === "" ? "horizontal-tb" : cue.vertical === "lr" ? "vertical-lr" : "vertical-rl",
-      unicodeBidi: "plaintext",
-      textAlign: cue.align === "middle" ? "center" : cue.align,
-      font: styleOptions.font,
-      whiteSpace: "pre-line",
-      position: "absolute"
-    };
-    this.applyStyles(styles);
-    this.div.appendChild(this.cueDiv);
-
-    // Calculate the distance from the reference edge of the viewport to the text
-    // position of the cue box. The reference edge will be resolved later when
-    // the box orientation styles are applied.
-    var textPos = 0;
-    switch (cue.positionAlign) {
-      case "start":
-      case "line-left":
-        textPos = cue.position;
-        break;
-      case "center":
-        textPos = cue.position - cue.size / 2;
-        break;
-      case "end":
-      case "line-right":
-        textPos = cue.position - cue.size;
-        break;
-    }
-
-    // Horizontal box orientation; textPos is the distance from the left edge of the
-    // area to the left edge of the box and cue.size is the distance extending to
-    // the right from there.
-    if (cue.vertical === "") {
-      this.applyStyles({
-        left: this.formatStyle(textPos, "%"),
-        width: this.formatStyle(cue.size, "%")
-      });
-      // Vertical box orientation; textPos is the distance from the top edge of the
-      // area to the top edge of the box and cue.size is the height extending
-      // downwards from there.
-    } else {
-      this.applyStyles({
-        top: this.formatStyle(textPos, "%"),
-        height: this.formatStyle(cue.size, "%")
-      });
-    }
-    this.move = function (box) {
-      this.applyStyles({
-        top: this.formatStyle(box.top, "px"),
-        bottom: this.formatStyle(box.bottom, "px"),
-        left: this.formatStyle(box.left, "px"),
-        right: this.formatStyle(box.right, "px"),
-        height: this.formatStyle(box.height, "px"),
-        width: this.formatStyle(box.width, "px")
-      });
-    };
-  }
-  CueStyleBox.prototype = _objCreate(StyleBox.prototype);
-  CueStyleBox.prototype.constructor = CueStyleBox;
-
-  // Represents the co-ordinates of an Element in a way that we can easily
-  // compute things with such as if it overlaps or intersects with another Element.
-  // Can initialize it with either a StyleBox or another BoxPosition.
-  function BoxPosition(obj) {
-    // Either a BoxPosition was passed in and we need to copy it, or a StyleBox
-    // was passed in and we need to copy the results of 'getBoundingClientRect'
-    // as the object returned is readonly. All co-ordinate values are in reference
-    // to the viewport origin (top left).
-    var lh, height, width, top;
-    if (obj.div) {
-      height = obj.div.offsetHeight;
-      width = obj.div.offsetWidth;
-      top = obj.div.offsetTop;
-      var rects = (rects = obj.div.childNodes) && (rects = rects[0]) && rects.getClientRects && rects.getClientRects();
-      obj = obj.div.getBoundingClientRect();
-      // In certain cases the outter div will be slightly larger then the sum of
-      // the inner div's lines. This could be due to bold text, etc, on some platforms.
-      // In this case we should get the average line height and use that. This will
-      // result in the desired behaviour.
-      lh = rects ? Math.max(rects[0] && rects[0].height || 0, obj.height / rects.length) : 0;
-    }
-    this.left = obj.left;
-    this.right = obj.right;
-    this.top = obj.top || top;
-    this.height = obj.height || height;
-    this.bottom = obj.bottom || top + (obj.height || height);
-    this.width = obj.width || width;
-    this.lineHeight = lh !== undefined ? lh : obj.lineHeight;
-  }
-
-  // Move the box along a particular axis. Optionally pass in an amount to move
-  // the box. If no amount is passed then the default is the line height of the
-  // box.
-  BoxPosition.prototype.move = function (axis, toMove) {
-    toMove = toMove !== undefined ? toMove : this.lineHeight;
-    switch (axis) {
-      case "+x":
-        this.left += toMove;
-        this.right += toMove;
-        break;
-      case "-x":
-        this.left -= toMove;
-        this.right -= toMove;
-        break;
-      case "+y":
-        this.top += toMove;
-        this.bottom += toMove;
-        break;
-      case "-y":
-        this.top -= toMove;
-        this.bottom -= toMove;
-        break;
-    }
-  };
-
-  // Check if this box overlaps another box, b2.
-  BoxPosition.prototype.overlaps = function (b2) {
-    return this.left < b2.right && this.right > b2.left && this.top < b2.bottom && this.bottom > b2.top;
-  };
-
-  // Check if this box overlaps any other boxes in boxes.
-  BoxPosition.prototype.overlapsAny = function (boxes) {
-    for (var i = 0; i < boxes.length; i++) {
-      if (this.overlaps(boxes[i])) {
-        return true;
-      }
-    }
-    return false;
-  };
-
-  // Check if this box is within another box.
-  BoxPosition.prototype.within = function (container) {
-    return this.top >= container.top && this.bottom <= container.bottom && this.left >= container.left && this.right <= container.right;
-  };
-
-  // Check if this box is entirely within the container or it is overlapping
-  // on the edge opposite of the axis direction passed. For example, if "+x" is
-  // passed and the box is overlapping on the left edge of the container, then
-  // return true.
-  BoxPosition.prototype.overlapsOppositeAxis = function (container, axis) {
-    switch (axis) {
-      case "+x":
-        return this.left < container.left;
-      case "-x":
-        return this.right > container.right;
-      case "+y":
-        return this.top < container.top;
-      case "-y":
-        return this.bottom > container.bottom;
-    }
-  };
-
-  // Find the percentage of the area that this box is overlapping with another
-  // box.
-  BoxPosition.prototype.intersectPercentage = function (b2) {
-    var x = Math.max(0, Math.min(this.right, b2.right) - Math.max(this.left, b2.left)),
-      y = Math.max(0, Math.min(this.bottom, b2.bottom) - Math.max(this.top, b2.top)),
-      intersectArea = x * y;
-    return intersectArea / (this.height * this.width);
-  };
-
-  // Convert the positions from this box to CSS compatible positions using
-  // the reference container's positions. This has to be done because this
-  // box's positions are in reference to the viewport origin, whereas, CSS
-  // values are in referecne to their respective edges.
-  BoxPosition.prototype.toCSSCompatValues = function (reference) {
-    return {
-      top: this.top - reference.top,
-      bottom: reference.bottom - this.bottom,
-      left: this.left - reference.left,
-      right: reference.right - this.right,
-      height: this.height,
-      width: this.width
-    };
-  };
-
-  // Get an object that represents the box's position without anything extra.
-  // Can pass a StyleBox, HTMLElement, or another BoxPositon.
-  BoxPosition.getSimpleBoxPosition = function (obj) {
-    var height = obj.div ? obj.div.offsetHeight : obj.tagName ? obj.offsetHeight : 0;
-    var width = obj.div ? obj.div.offsetWidth : obj.tagName ? obj.offsetWidth : 0;
-    var top = obj.div ? obj.div.offsetTop : obj.tagName ? obj.offsetTop : 0;
-    obj = obj.div ? obj.div.getBoundingClientRect() : obj.tagName ? obj.getBoundingClientRect() : obj;
-    var ret = {
-      left: obj.left,
-      right: obj.right,
-      top: obj.top || top,
-      height: obj.height || height,
-      bottom: obj.bottom || top + (obj.height || height),
-      width: obj.width || width
-    };
-    return ret;
-  };
-
-  // Move a StyleBox to its specified, or next best, position. The containerBox
-  // is the box that contains the StyleBox, such as a div. boxPositions are
-  // a list of other boxes that the styleBox can't overlap with.
-  function moveBoxToLinePosition(window, styleBox, containerBox, boxPositions) {
-    // Find the best position for a cue box, b, on the video. The axis parameter
-    // is a list of axis, the order of which, it will move the box along. For example:
-    // Passing ["+x", "-x"] will move the box first along the x axis in the positive
-    // direction. If it doesn't find a good position for it there it will then move
-    // it along the x axis in the negative direction.
-    function findBestPosition(b, axis) {
-      var bestPosition,
-        specifiedPosition = new BoxPosition(b),
-        percentage = 1; // Highest possible so the first thing we get is better.
-
-      for (var i = 0; i < axis.length; i++) {
-        while (b.overlapsOppositeAxis(containerBox, axis[i]) || b.within(containerBox) && b.overlapsAny(boxPositions)) {
-          b.move(axis[i]);
-        }
-        // We found a spot where we aren't overlapping anything. This is our
-        // best position.
-        if (b.within(containerBox)) {
-          return b;
-        }
-        var p = b.intersectPercentage(containerBox);
-        // If we're outside the container box less then we were on our last try
-        // then remember this position as the best position.
-        if (percentage > p) {
-          bestPosition = new BoxPosition(b);
-          percentage = p;
-        }
-        // Reset the box position to the specified position.
-        b = new BoxPosition(specifiedPosition);
-      }
-      return bestPosition || specifiedPosition;
-    }
-    var boxPosition = new BoxPosition(styleBox),
-      cue = styleBox.cue,
-      linePos = computeLinePos(cue),
-      axis = [];
-
-    // If we have a line number to align the cue to.
-    if (cue.snapToLines) {
-      var size;
-      switch (cue.vertical) {
-        case "":
-          axis = ["+y", "-y"];
-          size = "height";
-          break;
-        case "rl":
-          axis = ["+x", "-x"];
-          size = "width";
-          break;
-        case "lr":
-          axis = ["-x", "+x"];
-          size = "width";
-          break;
-      }
-      var step = boxPosition.lineHeight,
-        position = step * Math.round(linePos),
-        maxPosition = containerBox[size] + step,
-        initialAxis = axis[0];
-
-      // If the specified intial position is greater then the max position then
-      // clamp the box to the amount of steps it would take for the box to
-      // reach the max position.
-      if (Math.abs(position) > maxPosition) {
-        position = position < 0 ? -1 : 1;
-        position *= Math.ceil(maxPosition / step) * step;
-      }
-
-      // If computed line position returns negative then line numbers are
-      // relative to the bottom of the video instead of the top. Therefore, we
-      // need to increase our initial position by the length or width of the
-      // video, depending on the writing direction, and reverse our axis directions.
-      if (linePos < 0) {
-        position += cue.vertical === "" ? containerBox.height : containerBox.width;
-        axis = axis.reverse();
-      }
-
-      // Move the box to the specified position. This may not be its best
-      // position.
-      boxPosition.move(initialAxis, position);
-    } else {
-      // If we have a percentage line value for the cue.
-      var calculatedPercentage = boxPosition.lineHeight / containerBox.height * 100;
-      switch (cue.lineAlign) {
-        case "center":
-          linePos -= calculatedPercentage / 2;
-          break;
-        case "end":
-          linePos -= calculatedPercentage;
-          break;
-      }
-
-      // Apply initial line position to the cue box.
-      switch (cue.vertical) {
-        case "":
-          styleBox.applyStyles({
-            top: styleBox.formatStyle(linePos, "%")
-          });
-          break;
-        case "rl":
-          styleBox.applyStyles({
-            left: styleBox.formatStyle(linePos, "%")
-          });
-          break;
-        case "lr":
-          styleBox.applyStyles({
-            right: styleBox.formatStyle(linePos, "%")
-          });
-          break;
-      }
-      axis = ["+y", "-x", "+x", "-y"];
-
-      // Get the box position again after we've applied the specified positioning
-      // to it.
-      boxPosition = new BoxPosition(styleBox);
-    }
-    var bestPosition = findBestPosition(boxPosition, axis);
-    styleBox.move(bestPosition.toCSSCompatValues(containerBox));
-  }
-  function WebVTT$1() {
-    // Nothing
-  }
-
-  // Helper to allow strings to be decoded instead of the default binary utf8 data.
-  WebVTT$1.StringDecoder = function () {
-    return {
-      decode: function (data) {
-        if (!data) {
-          return "";
-        }
-        if (typeof data !== "string") {
-          throw new Error("Error - expected string data.");
-        }
-        return decodeURIComponent(encodeURIComponent(data));
-      }
-    };
-  };
-  WebVTT$1.convertCueToDOMTree = function (window, cuetext) {
-    if (!window || !cuetext) {
-      return null;
-    }
-    return parseContent(window, cuetext);
-  };
-  var FONT_SIZE_PERCENT = 0.05;
-  var FONT_STYLE = "sans-serif";
-  var CUE_BACKGROUND_PADDING = "1.5%";
-
-  // Runs the processing model over the cues and regions passed to it.
-  // @param overlay A block level element (usually a div) that the computed cues
-  //                and regions will be placed into.
-  WebVTT$1.processCues = function (window, cues, overlay) {
-    if (!window || !cues || !overlay) {
-      return null;
-    }
-
-    // Remove all previous children.
-    while (overlay.firstChild) {
-      overlay.removeChild(overlay.firstChild);
-    }
-    var paddedOverlay = window.document.createElement("div");
-    paddedOverlay.style.position = "absolute";
-    paddedOverlay.style.left = "0";
-    paddedOverlay.style.right = "0";
-    paddedOverlay.style.top = "0";
-    paddedOverlay.style.bottom = "0";
-    paddedOverlay.style.margin = CUE_BACKGROUND_PADDING;
-    overlay.appendChild(paddedOverlay);
-
-    // Determine if we need to compute the display states of the cues. This could
-    // be the case if a cue's state has been changed since the last computation or
-    // if it has not been computed yet.
-    function shouldCompute(cues) {
-      for (var i = 0; i < cues.length; i++) {
-        if (cues[i].hasBeenReset || !cues[i].displayState) {
-          return true;
-        }
-      }
-      return false;
-    }
-
-    // We don't need to recompute the cues' display states. Just reuse them.
-    if (!shouldCompute(cues)) {
-      for (var i = 0; i < cues.length; i++) {
-        paddedOverlay.appendChild(cues[i].displayState);
-      }
-      return;
-    }
-    var boxPositions = [],
-      containerBox = BoxPosition.getSimpleBoxPosition(paddedOverlay),
-      fontSize = Math.round(containerBox.height * FONT_SIZE_PERCENT * 100) / 100;
-    var styleOptions = {
-      font: fontSize + "px " + FONT_STYLE
-    };
-    (function () {
-      var styleBox, cue;
-      for (var i = 0; i < cues.length; i++) {
-        cue = cues[i];
-
-        // Compute the intial position and styles of the cue div.
-        styleBox = new CueStyleBox(window, cue, styleOptions);
-        paddedOverlay.appendChild(styleBox.div);
-
-        // Move the cue div to it's correct line position.
-        moveBoxToLinePosition(window, styleBox, containerBox, boxPositions);
-
-        // Remember the computed div so that we don't have to recompute it later
-        // if we don't have too.
-        cue.displayState = styleBox.div;
-        boxPositions.push(BoxPosition.getSimpleBoxPosition(styleBox));
-      }
-    })();
-  };
-  WebVTT$1.Parser = function (window, vttjs, decoder) {
-    if (!decoder) {
-      decoder = vttjs;
-      vttjs = {};
-    }
-    if (!vttjs) {
-      vttjs = {};
-    }
-    this.window = window;
-    this.vttjs = vttjs;
-    this.state = "INITIAL";
-    this.buffer = "";
-    this.decoder = decoder || new TextDecoder("utf8");
-    this.regionList = [];
-  };
-  WebVTT$1.Parser.prototype = {
-    // If the error is a ParsingError then report it to the consumer if
-    // possible. If it's not a ParsingError then throw it like normal.
-    reportOrThrowError: function (e) {
-      if (e instanceof ParsingError) {
-        this.onparsingerror && this.onparsingerror(e);
-      } else {
-        throw e;
-      }
-    },
-    parse: function (data) {
-      var self = this;
-
-      // If there is no data then we won't decode it, but will just try to parse
-      // whatever is in buffer already. This may occur in circumstances, for
-      // example when flush() is called.
-      if (data) {
-        // Try to decode the data that we received.
-        self.buffer += self.decoder.decode(data, {
-          stream: true
-        });
-      }
-      function collectNextLine() {
-        var buffer = self.buffer;
-        var pos = 0;
-        while (pos < buffer.length && buffer[pos] !== '\r' && buffer[pos] !== '\n') {
-          ++pos;
-        }
-        var line = buffer.substr(0, pos);
-        // Advance the buffer early in case we fail below.
-        if (buffer[pos] === '\r') {
-          ++pos;
-        }
-        if (buffer[pos] === '\n') {
-          ++pos;
-        }
-        self.buffer = buffer.substr(pos);
-        return line;
-      }
-
-      // 3.4 WebVTT region and WebVTT region settings syntax
-      function parseRegion(input) {
-        var settings = new Settings();
-        parseOptions(input, function (k, v) {
-          switch (k) {
-            case "id":
-              settings.set(k, v);
-              break;
-            case "width":
-              settings.percent(k, v);
-              break;
-            case "lines":
-              settings.integer(k, v);
-              break;
-            case "regionanchor":
-            case "viewportanchor":
-              var xy = v.split(',');
-              if (xy.length !== 2) {
-                break;
-              }
-              // We have to make sure both x and y parse, so use a temporary
-              // settings object here.
-              var anchor = new Settings();
-              anchor.percent("x", xy[0]);
-              anchor.percent("y", xy[1]);
-              if (!anchor.has("x") || !anchor.has("y")) {
-                break;
-              }
-              settings.set(k + "X", anchor.get("x"));
-              settings.set(k + "Y", anchor.get("y"));
-              break;
-            case "scroll":
-              settings.alt(k, v, ["up"]);
-              break;
-          }
-        }, /=/, /\s/);
-
-        // Create the region, using default values for any values that were not
-        // specified.
-        if (settings.has("id")) {
-          var region = new (self.vttjs.VTTRegion || self.window.VTTRegion)();
-          region.width = settings.get("width", 100);
-          region.lines = settings.get("lines", 3);
-          region.regionAnchorX = settings.get("regionanchorX", 0);
-          region.regionAnchorY = settings.get("regionanchorY", 100);
-          region.viewportAnchorX = settings.get("viewportanchorX", 0);
-          region.viewportAnchorY = settings.get("viewportanchorY", 100);
-          region.scroll = settings.get("scroll", "");
-          // Register the region.
-          self.onregion && self.onregion(region);
-          // Remember the VTTRegion for later in case we parse any VTTCues that
-          // reference it.
-          self.regionList.push({
-            id: settings.get("id"),
-            region: region
-          });
-        }
-      }
-
-      // draft-pantos-http-live-streaming-20
-      // https://tools.ietf.org/html/draft-pantos-http-live-streaming-20#section-3.5
-      // 3.5 WebVTT
-      function parseTimestampMap(input) {
-        var settings = new Settings();
-        parseOptions(input, function (k, v) {
-          switch (k) {
-            case "MPEGT":
-              settings.integer(k + 'S', v);
-              break;
-            case "LOCA":
-              settings.set(k + 'L', parseTimeStamp(v));
-              break;
-          }
-        }, /[^\d]:/, /,/);
-        self.ontimestampmap && self.ontimestampmap({
-          "MPEGTS": settings.get("MPEGTS"),
-          "LOCAL": settings.get("LOCAL")
-        });
-      }
-
-      // 3.2 WebVTT metadata header syntax
-      function parseHeader(input) {
-        if (input.match(/X-TIMESTAMP-MAP/)) {
-          // This line contains HLS X-TIMESTAMP-MAP metadata
-          parseOptions(input, function (k, v) {
-            switch (k) {
-              case "X-TIMESTAMP-MAP":
-                parseTimestampMap(v);
-                break;
-            }
-          }, /=/);
-        } else {
-          parseOptions(input, function (k, v) {
-            switch (k) {
-              case "Region":
-                // 3.3 WebVTT region metadata header syntax
-                parseRegion(v);
-                break;
-            }
-          }, /:/);
-        }
-      }
-
-      // 5.1 WebVTT file parsing.
-      try {
-        var line;
-        if (self.state === "INITIAL") {
-          // We can't start parsing until we have the first line.
-          if (!/\r\n|\n/.test(self.buffer)) {
-            return this;
-          }
-          line = collectNextLine();
-          var m = line.match(/^WEBVTT([ \t].*)?$/);
-          if (!m || !m[0]) {
-            throw new ParsingError(ParsingError.Errors.BadSignature);
-          }
-          self.state = "HEADER";
-        }
-        var alreadyCollectedLine = false;
-        while (self.buffer) {
-          // We can't parse a line until we have the full line.
-          if (!/\r\n|\n/.test(self.buffer)) {
-            return this;
-          }
-          if (!alreadyCollectedLine) {
-            line = collectNextLine();
-          } else {
-            alreadyCollectedLine = false;
-          }
-          switch (self.state) {
-            case "HEADER":
-              // 13-18 - Allow a header (metadata) under the WEBVTT line.
-              if (/:/.test(line)) {
-                parseHeader(line);
-              } else if (!line) {
-                // An empty line terminates the header and starts the body (cues).
-                self.state = "ID";
-              }
-              continue;
-            case "NOTE":
-              // Ignore NOTE blocks.
-              if (!line) {
-                self.state = "ID";
-              }
-              continue;
-            case "ID":
-              // Check for the start of NOTE blocks.
-              if (/^NOTE($|[ \t])/.test(line)) {
-                self.state = "NOTE";
-                break;
-              }
-              // 19-29 - Allow any number of line terminators, then initialize new cue values.
-              if (!line) {
-                continue;
-              }
-              self.cue = new (self.vttjs.VTTCue || self.window.VTTCue)(0, 0, "");
-              // Safari still uses the old middle value and won't accept center
-              try {
-                self.cue.align = "center";
-              } catch (e) {
-                self.cue.align = "middle";
-              }
-              self.state = "CUE";
-              // 30-39 - Check if self line contains an optional identifier or timing data.
-              if (line.indexOf("-->") === -1) {
-                self.cue.id = line;
-                continue;
-              }
-            // Process line as start of a cue.
-            /*falls through*/
-            case "CUE":
-              // 40 - Collect cue timings and settings.
-              try {
-                parseCue(line, self.cue, self.regionList);
-              } catch (e) {
-                self.reportOrThrowError(e);
-                // In case of an error ignore rest of the cue.
-                self.cue = null;
-                self.state = "BADCUE";
-                continue;
-              }
-              self.state = "CUETEXT";
-              continue;
-            case "CUETEXT":
-              var hasSubstring = line.indexOf("-->") !== -1;
-              // 34 - If we have an empty line then report the cue.
-              // 35 - If we have the special substring '-->' then report the cue,
-              // but do not collect the line as we need to process the current
-              // one as a new cue.
-              if (!line || hasSubstring && (alreadyCollectedLine = true)) {
-                // We are done parsing self cue.
-                self.oncue && self.oncue(self.cue);
-                self.cue = null;
-                self.state = "ID";
-                continue;
-              }
-              if (self.cue.text) {
-                self.cue.text += "\n";
-              }
-              self.cue.text += line.replace(/\u2028/g, '\n').replace(/u2029/g, '\n');
-              continue;
-            case "BADCUE":
-              // BADCUE
-              // 54-62 - Collect and discard the remaining cue.
-              if (!line) {
-                self.state = "ID";
-              }
-              continue;
-          }
-        }
-      } catch (e) {
-        self.reportOrThrowError(e);
-
-        // If we are currently parsing a cue, report what we have.
-        if (self.state === "CUETEXT" && self.cue && self.oncue) {
-          self.oncue(self.cue);
-        }
-        self.cue = null;
-        // Enter BADWEBVTT state if header was not parsed correctly otherwise
-        // another exception occurred so enter BADCUE state.
-        self.state = self.state === "INITIAL" ? "BADWEBVTT" : "BADCUE";
-      }
-      return this;
-    },
-    flush: function () {
-      var self = this;
-      try {
-        // Finish decoding the stream.
-        self.buffer += self.decoder.decode();
-        // Synthesize the end of the current cue or region.
-        if (self.cue || self.state === "HEADER") {
-          self.buffer += "\n\n";
-          self.parse();
-        }
-        // If we've flushed, parsed, and we're still on the INITIAL state then
-        // that means we don't have enough of the stream to parse the first
-        // line.
-        if (self.state === "INITIAL") {
-          throw new ParsingError(ParsingError.Errors.BadSignature);
-        }
-      } catch (e) {
-        self.reportOrThrowError(e);
-      }
-      self.onflush && self.onflush();
-      return this;
-    }
-  };
-  var vtt = WebVTT$1;
-
-  /**
-   * Copyright 2013 vtt.js Contributors
-   *
-   * Licensed under the Apache License, Version 2.0 (the "License");
-   * you may not use this file except in compliance with the License.
-   * You may obtain a copy of the License at
-   *
-   *   http://www.apache.org/licenses/LICENSE-2.0
-   *
-   * Unless required by applicable law or agreed to in writing, software
-   * distributed under the License is distributed on an "AS IS" BASIS,
-   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-   * See the License for the specific language governing permissions and
-   * limitations under the License.
-   */
-
-  var autoKeyword = "auto";
-  var directionSetting = {
-    "": 1,
-    "lr": 1,
-    "rl": 1
-  };
-  var alignSetting = {
-    "start": 1,
-    "center": 1,
-    "end": 1,
-    "left": 1,
-    "right": 1,
-    "auto": 1,
-    "line-left": 1,
-    "line-right": 1
-  };
-  function findDirectionSetting(value) {
-    if (typeof value !== "string") {
-      return false;
-    }
-    var dir = directionSetting[value.toLowerCase()];
-    return dir ? value.toLowerCase() : false;
-  }
-  function findAlignSetting(value) {
-    if (typeof value !== "string") {
-      return false;
-    }
-    var align = alignSetting[value.toLowerCase()];
-    return align ? value.toLowerCase() : false;
-  }
-  function VTTCue(startTime, endTime, text) {
-    /**
-     * Shim implementation specific properties. These properties are not in
-     * the spec.
-     */
-
-    // Lets us know when the VTTCue's data has changed in such a way that we need
-    // to recompute its display state. This lets us compute its display state
-    // lazily.
-    this.hasBeenReset = false;
-
-    /**
-     * VTTCue and TextTrackCue properties
-     * http://dev.w3.org/html5/webvtt/#vttcue-interface
-     */
-
-    var _id = "";
-    var _pauseOnExit = false;
-    var _startTime = startTime;
-    var _endTime = endTime;
-    var _text = text;
-    var _region = null;
-    var _vertical = "";
-    var _snapToLines = true;
-    var _line = "auto";
-    var _lineAlign = "start";
-    var _position = "auto";
-    var _positionAlign = "auto";
-    var _size = 100;
-    var _align = "center";
-    Object.defineProperties(this, {
-      "id": {
-        enumerable: true,
-        get: function () {
-          return _id;
-        },
-        set: function (value) {
-          _id = "" + value;
-        }
-      },
-      "pauseOnExit": {
-        enumerable: true,
-        get: function () {
-          return _pauseOnExit;
-        },
-        set: function (value) {
-          _pauseOnExit = !!value;
-        }
-      },
-      "startTime": {
-        enumerable: true,
-        get: function () {
-          return _startTime;
-        },
-        set: function (value) {
-          if (typeof value !== "number") {
-            throw new TypeError("Start time must be set to a number.");
-          }
-          _startTime = value;
-          this.hasBeenReset = true;
-        }
-      },
-      "endTime": {
-        enumerable: true,
-        get: function () {
-          return _endTime;
-        },
-        set: function (value) {
-          if (typeof value !== "number") {
-            throw new TypeError("End time must be set to a number.");
-          }
-          _endTime = value;
-          this.hasBeenReset = true;
-        }
-      },
-      "text": {
-        enumerable: true,
-        get: function () {
-          return _text;
-        },
-        set: function (value) {
-          _text = "" + value;
-          this.hasBeenReset = true;
-        }
-      },
-      "region": {
-        enumerable: true,
-        get: function () {
-          return _region;
-        },
-        set: function (value) {
-          _region = value;
-          this.hasBeenReset = true;
-        }
-      },
-      "vertical": {
-        enumerable: true,
-        get: function () {
-          return _vertical;
-        },
-        set: function (value) {
-          var setting = findDirectionSetting(value);
-          // Have to check for false because the setting an be an empty string.
-          if (setting === false) {
-            throw new SyntaxError("Vertical: an invalid or illegal direction string was specified.");
-          }
-          _vertical = setting;
-          this.hasBeenReset = true;
-        }
-      },
-      "snapToLines": {
-        enumerable: true,
-        get: function () {
-          return _snapToLines;
-        },
-        set: function (value) {
-          _snapToLines = !!value;
-          this.hasBeenReset = true;
-        }
-      },
-      "line": {
-        enumerable: true,
-        get: function () {
-          return _line;
-        },
-        set: function (value) {
-          if (typeof value !== "number" && value !== autoKeyword) {
-            throw new SyntaxError("Line: an invalid number or illegal string was specified.");
-          }
-          _line = value;
-          this.hasBeenReset = true;
-        }
-      },
-      "lineAlign": {
-        enumerable: true,
-        get: function () {
-          return _lineAlign;
-        },
-        set: function (value) {
-          var setting = findAlignSetting(value);
-          if (!setting) {
-            console.warn("lineAlign: an invalid or illegal string was specified.");
-          } else {
-            _lineAlign = setting;
-            this.hasBeenReset = true;
-          }
-        }
-      },
-      "position": {
-        enumerable: true,
-        get: function () {
-          return _position;
-        },
-        set: function (value) {
-          if (value < 0 || value > 100) {
-            throw new Error("Position must be between 0 and 100.");
-          }
-          _position = value;
-          this.hasBeenReset = true;
-        }
-      },
-      "positionAlign": {
-        enumerable: true,
-        get: function () {
-          return _positionAlign;
-        },
-        set: function (value) {
-          var setting = findAlignSetting(value);
-          if (!setting) {
-            console.warn("positionAlign: an invalid or illegal string was specified.");
-          } else {
-            _positionAlign = setting;
-            this.hasBeenReset = true;
-          }
-        }
-      },
-      "size": {
-        enumerable: true,
-        get: function () {
-          return _size;
-        },
-        set: function (value) {
-          if (value < 0 || value > 100) {
-            throw new Error("Size must be between 0 and 100.");
-          }
-          _size = value;
-          this.hasBeenReset = true;
-        }
-      },
-      "align": {
-        enumerable: true,
-        get: function () {
-          return _align;
-        },
-        set: function (value) {
-          var setting = findAlignSetting(value);
-          if (!setting) {
-            throw new SyntaxError("align: an invalid or illegal alignment string was specified.");
-          }
-          _align = setting;
-          this.hasBeenReset = true;
-        }
-      }
-    });
-
-    /**
-     * Other <track> spec defined properties
-     */
-
-    // http://www.whatwg.org/specs/web-apps/current-work/multipage/the-video-element.html#text-track-cue-display-state
-    this.displayState = undefined;
-  }
-
-  /**
-   * VTTCue methods
-   */
-
-  VTTCue.prototype.getCueAsHTML = function () {
-    // Assume WebVTT.convertCueToDOMTree is on the global.
-    return WebVTT.convertCueToDOMTree(window, this.text);
-  };
-  var vttcue = VTTCue;
-
-  /**
-   * Copyright 2013 vtt.js Contributors
-   *
-   * Licensed under the Apache License, Version 2.0 (the "License");
-   * you may not use this file except in compliance with the License.
-   * You may obtain a copy of the License at
-   *
-   *   http://www.apache.org/licenses/LICENSE-2.0
-   *
-   * Unless required by applicable law or agreed to in writing, software
-   * distributed under the License is distributed on an "AS IS" BASIS,
-   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-   * See the License for the specific language governing permissions and
-   * limitations under the License.
-   */
-
-  var scrollSetting = {
-    "": true,
-    "up": true
-  };
-  function findScrollSetting(value) {
-    if (typeof value !== "string") {
-      return false;
-    }
-    var scroll = scrollSetting[value.toLowerCase()];
-    return scroll ? value.toLowerCase() : false;
-  }
-  function isValidPercentValue(value) {
-    return typeof value === "number" && value >= 0 && value <= 100;
-  }
-
-  // VTTRegion shim http://dev.w3.org/html5/webvtt/#vttregion-interface
-  function VTTRegion() {
-    var _width = 100;
-    var _lines = 3;
-    var _regionAnchorX = 0;
-    var _regionAnchorY = 100;
-    var _viewportAnchorX = 0;
-    var _viewportAnchorY = 100;
-    var _scroll = "";
-    Object.defineProperties(this, {
-      "width": {
-        enumerable: true,
-        get: function () {
-          return _width;
-        },
-        set: function (value) {
-          if (!isValidPercentValue(value)) {
-            throw new Error("Width must be between 0 and 100.");
-          }
-          _width = value;
-        }
-      },
-      "lines": {
-        enumerable: true,
-        get: function () {
-          return _lines;
-        },
-        set: function (value) {
-          if (typeof value !== "number") {
-            throw new TypeError("Lines must be set to a number.");
-          }
-          _lines = value;
-        }
-      },
-      "regionAnchorY": {
-        enumerable: true,
-        get: function () {
-          return _regionAnchorY;
-        },
-        set: function (value) {
-          if (!isValidPercentValue(value)) {
-            throw new Error("RegionAnchorX must be between 0 and 100.");
-          }
-          _regionAnchorY = value;
-        }
-      },
-      "regionAnchorX": {
-        enumerable: true,
-        get: function () {
-          return _regionAnchorX;
-        },
-        set: function (value) {
-          if (!isValidPercentValue(value)) {
-            throw new Error("RegionAnchorY must be between 0 and 100.");
-          }
-          _regionAnchorX = value;
-        }
-      },
-      "viewportAnchorY": {
-        enumerable: true,
-        get: function () {
-          return _viewportAnchorY;
-        },
-        set: function (value) {
-          if (!isValidPercentValue(value)) {
-            throw new Error("ViewportAnchorY must be between 0 and 100.");
-          }
-          _viewportAnchorY = value;
-        }
-      },
-      "viewportAnchorX": {
-        enumerable: true,
-        get: function () {
-          return _viewportAnchorX;
-        },
-        set: function (value) {
-          if (!isValidPercentValue(value)) {
-            throw new Error("ViewportAnchorX must be between 0 and 100.");
-          }
-          _viewportAnchorX = value;
-        }
-      },
-      "scroll": {
-        enumerable: true,
-        get: function () {
-          return _scroll;
-        },
-        set: function (value) {
-          var setting = findScrollSetting(value);
-          // Have to check for false as an empty string is a legal value.
-          if (setting === false) {
-            console.warn("Scroll: an invalid or illegal string was specified.");
-          } else {
-            _scroll = setting;
-          }
-        }
-      }
-    });
-  }
-  var vttregion = VTTRegion;
-
-  var browserIndex = createCommonjsModule(function (module) {
-    /**
-     * Copyright 2013 vtt.js Contributors
-     *
-     * Licensed under the Apache License, Version 2.0 (the "License");
-     * you may not use this file except in compliance with the License.
-     * You may obtain a copy of the License at
-     *
-     *   http://www.apache.org/licenses/LICENSE-2.0
-     *
-     * Unless required by applicable law or agreed to in writing, software
-     * distributed under the License is distributed on an "AS IS" BASIS,
-     * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-     * See the License for the specific language governing permissions and
-     * limitations under the License.
-     */
-
-    // Default exports for Node. Export the extended versions of VTTCue and
-    // VTTRegion in Node since we likely want the capability to convert back and
-    // forth between JSON. If we don't then it's not that big of a deal since we're
-    // off browser.
-
-    var vttjs = module.exports = {
-      WebVTT: vtt,
-      VTTCue: vttcue,
-      VTTRegion: vttregion
-    };
-    window_1.vttjs = vttjs;
-    window_1.WebVTT = vttjs.WebVTT;
-    var cueShim = vttjs.VTTCue;
-    var regionShim = vttjs.VTTRegion;
-    var nativeVTTCue = window_1.VTTCue;
-    var nativeVTTRegion = window_1.VTTRegion;
-    vttjs.shim = function () {
-      window_1.VTTCue = cueShim;
-      window_1.VTTRegion = regionShim;
-    };
-    vttjs.restore = function () {
-      window_1.VTTCue = nativeVTTCue;
-      window_1.VTTRegion = nativeVTTRegion;
-    };
-    if (!window_1.VTTCue) {
-      vttjs.shim();
-    }
-  });
-  browserIndex.WebVTT;
-  browserIndex.VTTCue;
-  browserIndex.VTTRegion;
-
-  /**
-   * @file tech.js
-   */
-
-  /**
-   * An Object containing a structure like: `{src: 'url', type: 'mimetype'}` or string
-   * that just contains the src url alone.
-   * * `var SourceObject = {src: 'http://ex.com/video.mp4', type: 'video/mp4'};`
-     * `var SourceString = 'http://example.com/some-video.mp4';`
-   *
-   * @typedef {Object|string} SourceObject
-   *
-   * @property {string} src
-   *           The url to the source
-   *
-   * @property {string} type
-   *           The mime type of the source
-   */
-
-  /**
-   * A function used by {@link Tech} to create a new {@link TextTrack}.
-   *
-   * @private
-   *
-   * @param {Tech} self
-   *        An instance of the Tech class.
-   *
-   * @param {string} kind
-   *        `TextTrack` kind (subtitles, captions, descriptions, chapters, or metadata)
-   *
-   * @param {string} [label]
-   *        Label to identify the text track
-   *
-   * @param {string} [language]
-   *        Two letter language abbreviation
-   *
-   * @param {Object} [options={}]
-   *        An object with additional text track options
-   *
-   * @return {TextTrack}
-   *          The text track that was created.
-   */
-  function createTrackHelper(self, kind, label, language, options = {}) {
-    const tracks = self.textTracks();
-    options.kind = kind;
-    if (label) {
-      options.label = label;
-    }
-    if (language) {
-      options.language = language;
-    }
-    options.tech = self;
-    const track = new ALL.text.TrackClass(options);
-    tracks.addTrack(track);
-    return track;
-  }
-
-  /**
-   * This is the base class for media playback technology controllers, such as
-   * {@link HTML5}
-   *
-   * @extends Component
-   */
-  class Tech extends Component$1 {
-    /**
-    * Create an instance of this Tech.
-    *
-    * @param {Object} [options]
-    *        The key/value store of player options.
-    *
-    * @param {Function} [ready]
-    *        Callback function to call when the `HTML5` Tech is ready.
-    */
-    constructor(options = {}, ready = function () {}) {
-      // we don't want the tech to report user activity automatically.
-      // This is done manually in addControlsListeners
-      options.reportTouchActivity = false;
-      super(null, options, ready);
-      this.onDurationChange_ = e => this.onDurationChange(e);
-      this.trackProgress_ = e => this.trackProgress(e);
-      this.trackCurrentTime_ = e => this.trackCurrentTime(e);
-      this.stopTrackingCurrentTime_ = e => this.stopTrackingCurrentTime(e);
-      this.disposeSourceHandler_ = e => this.disposeSourceHandler(e);
-      this.queuedHanders_ = new Set();
-
-      // keep track of whether the current source has played at all to
-      // implement a very limited played()
-      this.hasStarted_ = false;
-      this.on('playing', function () {
-        this.hasStarted_ = true;
-      });
-      this.on('loadstart', function () {
-        this.hasStarted_ = false;
-      });
-      ALL.names.forEach(name => {
-        const props = ALL[name];
-        if (options && options[props.getterName]) {
-          this[props.privateName] = options[props.getterName];
-        }
-      });
-
-      // Manually track progress in cases where the browser/tech doesn't report it.
-      if (!this.featuresProgressEvents) {
-        this.manualProgressOn();
-      }
-
-      // Manually track timeupdates in cases where the browser/tech doesn't report it.
-      if (!this.featuresTimeupdateEvents) {
-        this.manualTimeUpdatesOn();
-      }
-      ['Text', 'Audio', 'Video'].forEach(track => {
-        if (options[`native${track}Tracks`] === false) {
-          this[`featuresNative${track}Tracks`] = false;
-        }
-      });
-      if (options.nativeCaptions === false || options.nativeTextTracks === false) {
-        this.featuresNativeTextTracks = false;
-      } else if (options.nativeCaptions === true || options.nativeTextTracks === true) {
-        this.featuresNativeTextTracks = true;
-      }
-      if (!this.featuresNativeTextTracks) {
-        this.emulateTextTracks();
-      }
-      this.preloadTextTracks = options.preloadTextTracks !== false;
-      this.autoRemoteTextTracks_ = new ALL.text.ListClass();
-      this.initTrackListeners();
-
-      // Turn on component tap events only if not using native controls
-      if (!options.nativeControlsForTouch) {
-        this.emitTapEvents();
-      }
-      if (this.constructor) {
-        this.name_ = this.constructor.name || 'Unknown Tech';
-      }
-    }
-
-    /**
-     * A special function to trigger source set in a way that will allow player
-     * to re-trigger if the player or tech are not ready yet.
-     *
-     * @fires Tech#sourceset
-     * @param {string} src The source string at the time of the source changing.
-     */
-    triggerSourceset(src) {
-      if (!this.isReady_) {
-        // on initial ready we have to trigger source set
-        // 1ms after ready so that player can watch for it.
-        this.one('ready', () => this.setTimeout(() => this.triggerSourceset(src), 1));
-      }
-
-      /**
-       * Fired when the source is set on the tech causing the media element
-       * to reload.
-       *
-       * @see {@link Player#event:sourceset}
-       * @event Tech#sourceset
-       * @type {Event}
-       */
-      this.trigger({
-        src,
-        type: 'sourceset'
-      });
-    }
-
-    /* Fallbacks for unsupported event types
-    ================================================================================ */
-
-    /**
-     * Polyfill the `progress` event for browsers that don't support it natively.
-     *
-     * @see {@link Tech#trackProgress}
-     */
-    manualProgressOn() {
-      this.on('durationchange', this.onDurationChange_);
-      this.manualProgress = true;
-
-      // Trigger progress watching when a source begins loading
-      this.one('ready', this.trackProgress_);
-    }
-
-    /**
-     * Turn off the polyfill for `progress` events that was created in
-     * {@link Tech#manualProgressOn}
-     */
-    manualProgressOff() {
-      this.manualProgress = false;
-      this.stopTrackingProgress();
-      this.off('durationchange', this.onDurationChange_);
-    }
-
-    /**
-     * This is used to trigger a `progress` event when the buffered percent changes. It
-     * sets an interval function that will be called every 500 milliseconds to check if the
-     * buffer end percent has changed.
-     *
-     * > This function is called by {@link Tech#manualProgressOn}
-     *
-     * @param {Event} event
-     *        The `ready` event that caused this to run.
-     *
-     * @listens Tech#ready
-     * @fires Tech#progress
-     */
-    trackProgress(event) {
-      this.stopTrackingProgress();
-      this.progressInterval = this.setInterval(bind_(this, function () {
-        // Don't trigger unless buffered amount is greater than last time
-
-        const numBufferedPercent = this.bufferedPercent();
-        if (this.bufferedPercent_ !== numBufferedPercent) {
-          /**
-           * See {@link Player#progress}
-           *
-           * @event Tech#progress
-           * @type {Event}
-           */
-          this.trigger('progress');
-        }
-        this.bufferedPercent_ = numBufferedPercent;
-        if (numBufferedPercent === 1) {
-          this.stopTrackingProgress();
-        }
-      }), 500);
-    }
-
-    /**
-     * Update our internal duration on a `durationchange` event by calling
-     * {@link Tech#duration}.
-     *
-     * @param {Event} event
-     *        The `durationchange` event that caused this to run.
-     *
-     * @listens Tech#durationchange
-     */
-    onDurationChange(event) {
-      this.duration_ = this.duration();
-    }
-
-    /**
-     * Get and create a `TimeRange` object for buffering.
-     *
-     * @return { import('../utils/time').TimeRange }
-     *         The time range object that was created.
-     */
-    buffered() {
-      return createTimeRanges$1(0, 0);
-    }
-
-    /**
-     * Get the percentage of the current video that is currently buffered.
-     *
-     * @return {number}
-     *         A number from 0 to 1 that represents the decimal percentage of the
-     *         video that is buffered.
-     *
-     */
-    bufferedPercent() {
-      return bufferedPercent(this.buffered(), this.duration_);
-    }
-
-    /**
-     * Turn off the polyfill for `progress` events that was created in
-     * {@link Tech#manualProgressOn}
-     * Stop manually tracking progress events by clearing the interval that was set in
-     * {@link Tech#trackProgress}.
-     */
-    stopTrackingProgress() {
-      this.clearInterval(this.progressInterval);
-    }
-
-    /**
-     * Polyfill the `timeupdate` event for browsers that don't support it.
-     *
-     * @see {@link Tech#trackCurrentTime}
-     */
-    manualTimeUpdatesOn() {
-      this.manualTimeUpdates = true;
-      this.on('play', this.trackCurrentTime_);
-      this.on('pause', this.stopTrackingCurrentTime_);
-    }
-
-    /**
-     * Turn off the polyfill for `timeupdate` events that was created in
-     * {@link Tech#manualTimeUpdatesOn}
-     */
-    manualTimeUpdatesOff() {
-      this.manualTimeUpdates = false;
-      this.stopTrackingCurrentTime();
-      this.off('play', this.trackCurrentTime_);
-      this.off('pause', this.stopTrackingCurrentTime_);
-    }
-
-    /**
-     * Sets up an interval function to track current time and trigger `timeupdate` every
-     * 250 milliseconds.
-     *
-     * @listens Tech#play
-     * @triggers Tech#timeupdate
-     */
-    trackCurrentTime() {
-      if (this.currentTimeInterval) {
-        this.stopTrackingCurrentTime();
-      }
-      this.currentTimeInterval = this.setInterval(function () {
-        /**
-         * Triggered at an interval of 250ms to indicated that time is passing in the video.
-         *
-         * @event Tech#timeupdate
-         * @type {Event}
-         */
-        this.trigger({
-          type: 'timeupdate',
-          target: this,
-          manuallyTriggered: true
-        });
-
-        // 42 = 24 fps // 250 is what Webkit uses // FF uses 15
-      }, 250);
-    }
-
-    /**
-     * Stop the interval function created in {@link Tech#trackCurrentTime} so that the
-     * `timeupdate` event is no longer triggered.
-     *
-     * @listens {Tech#pause}
-     */
-    stopTrackingCurrentTime() {
-      this.clearInterval(this.currentTimeInterval);
-
-      // #1002 - if the video ends right before the next timeupdate would happen,
-      // the progress bar won't make it all the way to the end
-      this.trigger({
-        type: 'timeupdate',
-        target: this,
-        manuallyTriggered: true
-      });
-    }
-
-    /**
-     * Turn off all event polyfills, clear the `Tech`s {@link AudioTrackList},
-     * {@link VideoTrackList}, and {@link TextTrackList}, and dispose of this Tech.
-     *
-     * @fires Component#dispose
-     */
-    dispose() {
-      // clear out all tracks because we can't reuse them between techs
-      this.clearTracks(NORMAL.names);
-
-      // Turn off any manual progress or timeupdate tracking
-      if (this.manualProgress) {
-        this.manualProgressOff();
-      }
-      if (this.manualTimeUpdates) {
-        this.manualTimeUpdatesOff();
-      }
-      super.dispose();
-    }
-
-    /**
-     * Clear out a single `TrackList` or an array of `TrackLists` given their names.
-     *
-     * > Note: Techs without source handlers should call this between sources for `video`
-     *         & `audio` tracks. You don't want to use them between tracks!
-     *
-     * @param {string[]|string} types
-     *        TrackList names to clear, valid names are `video`, `audio`, and
-     *        `text`.
-     */
-    clearTracks(types) {
-      types = [].concat(types);
-      // clear out all tracks because we can't reuse them between techs
-      types.forEach(type => {
-        const list = this[`${type}Tracks`]() || [];
-        let i = list.length;
-        while (i--) {
-          const track = list[i];
-          if (type === 'text') {
-            this.removeRemoteTextTrack(track);
-          }
-          list.removeTrack(track);
-        }
-      });
-    }
-
-    /**
-     * Remove any TextTracks added via addRemoteTextTrack that are
-     * flagged for automatic garbage collection
-     */
-    cleanupAutoTextTracks() {
-      const list = this.autoRemoteTextTracks_ || [];
-      let i = list.length;
-      while (i--) {
-        const track = list[i];
-        this.removeRemoteTextTrack(track);
-      }
-    }
-
-    /**
-     * Reset the tech, which will removes all sources and reset the internal readyState.
-     *
-     * @abstract
-     */
-    reset() {}
-
-    /**
-     * Get the value of `crossOrigin` from the tech.
-     *
-     * @abstract
-     *
-     * @see {Html5#crossOrigin}
-     */
-    crossOrigin() {}
-
-    /**
-     * Set the value of `crossOrigin` on the tech.
-     *
-     * @abstract
-     *
-     * @param {string} crossOrigin the crossOrigin value
-     * @see {Html5#setCrossOrigin}
-     */
-    setCrossOrigin() {}
-
-    /**
-     * Get or set an error on the Tech.
-     *
-     * @param {MediaError} [err]
-     *        Error to set on the Tech
-     *
-     * @return {MediaError|null}
-     *         The current error object on the tech, or null if there isn't one.
-     */
-    error(err) {
-      if (err !== undefined) {
-        this.error_ = new MediaError(err);
-        this.trigger('error');
-      }
-      return this.error_;
-    }
-
-    /**
-     * Returns the `TimeRange`s that have been played through for the current source.
-     *
-     * > NOTE: This implementation is incomplete. It does not track the played `TimeRange`.
-     *         It only checks whether the source has played at all or not.
-     *
-     * @return { import('../utils/time').TimeRange }
-     *         - A single time range if this video has played
-     *         - An empty set of ranges if not.
-     */
-    played() {
-      if (this.hasStarted_) {
-        return createTimeRanges$1(0, 0);
-      }
-      return createTimeRanges$1();
-    }
-
-    /**
-     * Start playback
-     *
-     * @abstract
-     *
-     * @see {Html5#play}
-     */
-    play() {}
-
-    /**
-     * Set whether we are scrubbing or not
-     *
-     * @abstract
-     * @param {boolean} _isScrubbing
-     *                  - true for we are currently scrubbing
-     *                  - false for we are no longer scrubbing
-     *
-     * @see {Html5#setScrubbing}
-     */
-    setScrubbing(_isScrubbing) {}
-
-    /**
-     * Get whether we are scrubbing or not
-     *
-     * @abstract
-     *
-     * @see {Html5#scrubbing}
-     */
-    scrubbing() {}
-
-    /**
-     * Causes a manual time update to occur if {@link Tech#manualTimeUpdatesOn} was
-     * previously called.
-     *
-     * @param {number} _seconds
-     *        Set the current time of the media to this.
-     * @fires Tech#timeupdate
-     */
-    setCurrentTime(_seconds) {
-      // improve the accuracy of manual timeupdates
-      if (this.manualTimeUpdates) {
-        /**
-         * A manual `timeupdate` event.
-         *
-         * @event Tech#timeupdate
-         * @type {Event}
-         */
-        this.trigger({
-          type: 'timeupdate',
-          target: this,
-          manuallyTriggered: true
-        });
-      }
-    }
-
-    /**
-     * Turn on listeners for {@link VideoTrackList}, {@link {AudioTrackList}, and
-     * {@link TextTrackList} events.
-     *
-     * This adds {@link EventTarget~EventListeners} for `addtrack`, and  `removetrack`.
-     *
-     * @fires Tech#audiotrackchange
-     * @fires Tech#videotrackchange
-     * @fires Tech#texttrackchange
-     */
-    initTrackListeners() {
-      /**
-        * Triggered when tracks are added or removed on the Tech {@link AudioTrackList}
-        *
-        * @event Tech#audiotrackchange
-        * @type {Event}
-        */
-
-      /**
-        * Triggered when tracks are added or removed on the Tech {@link VideoTrackList}
-        *
-        * @event Tech#videotrackchange
-        * @type {Event}
-        */
-
-      /**
-        * Triggered when tracks are added or removed on the Tech {@link TextTrackList}
-        *
-        * @event Tech#texttrackchange
-        * @type {Event}
-        */
-      NORMAL.names.forEach(name => {
-        const props = NORMAL[name];
-        const trackListChanges = () => {
-          this.trigger(`${name}trackchange`);
-        };
-        const tracks = this[props.getterName]();
-        tracks.addEventListener('removetrack', trackListChanges);
-        tracks.addEventListener('addtrack', trackListChanges);
-        this.on('dispose', () => {
-          tracks.removeEventListener('removetrack', trackListChanges);
-          tracks.removeEventListener('addtrack', trackListChanges);
-        });
-      });
-    }
-
-    /**
-     * Emulate TextTracks using vtt.js if necessary
-     *
-     * @fires Tech#vttjsloaded
-     * @fires Tech#vttjserror
-     */
-    addWebVttScript_() {
-      if (window.WebVTT) {
-        return;
-      }
-
-      // Initially, Tech.el_ is a child of a dummy-div wait until the Component system
-      // signals that the Tech is ready at which point Tech.el_ is part of the DOM
-      // before inserting the WebVTT script
-      if (document.body.contains(this.el())) {
-        // load via require if available and vtt.js script location was not passed in
-        // as an option. novtt builds will turn the above require call into an empty object
-        // which will cause this if check to always fail.
-        if (!this.options_['vtt.js'] && isPlain(browserIndex) && Object.keys(browserIndex).length > 0) {
-          this.trigger('vttjsloaded');
-          return;
-        }
-
-        // load vtt.js via the script location option or the cdn of no location was
-        // passed in
-        const script = document.createElement('script');
-        script.src = this.options_['vtt.js'] || 'https://vjs.zencdn.net/vttjs/0.14.1/vtt.min.js';
-        script.onload = () => {
-          /**
-           * Fired when vtt.js is loaded.
-           *
-           * @event Tech#vttjsloaded
-           * @type {Event}
-           */
-          this.trigger('vttjsloaded');
-        };
-        script.onerror = () => {
-          /**
-           * Fired when vtt.js was not loaded due to an error
-           *
-           * @event Tech#vttjsloaded
-           * @type {Event}
-           */
-          this.trigger('vttjserror');
-        };
-        this.on('dispose', () => {
-          script.onload = null;
-          script.onerror = null;
-        });
-        // but have not loaded yet and we set it to true before the inject so that
-        // we don't overwrite the injected window.WebVTT if it loads right away
-        window.WebVTT = true;
-        this.el().parentNode.appendChild(script);
-      } else {
-        this.ready(this.addWebVttScript_);
-      }
-    }
-
-    /**
-     * Emulate texttracks
-     *
-     */
-    emulateTextTracks() {
-      const tracks = this.textTracks();
-      const remoteTracks = this.remoteTextTracks();
-      const handleAddTrack = e => tracks.addTrack(e.track);
-      const handleRemoveTrack = e => tracks.removeTrack(e.track);
-      remoteTracks.on('addtrack', handleAddTrack);
-      remoteTracks.on('removetrack', handleRemoveTrack);
-      this.addWebVttScript_();
-      const updateDisplay = () => this.trigger('texttrackchange');
-      const textTracksChanges = () => {
-        updateDisplay();
-        for (let i = 0; i < tracks.length; i++) {
-          const track = tracks[i];
-          track.removeEventListener('cuechange', updateDisplay);
-          if (track.mode === 'showing') {
-            track.addEventListener('cuechange', updateDisplay);
-          }
-        }
-      };
-      textTracksChanges();
-      tracks.addEventListener('change', textTracksChanges);
-      tracks.addEventListener('addtrack', textTracksChanges);
-      tracks.addEventListener('removetrack', textTracksChanges);
-      this.on('dispose', function () {
-        remoteTracks.off('addtrack', handleAddTrack);
-        remoteTracks.off('removetrack', handleRemoveTrack);
-        tracks.removeEventListener('change', textTracksChanges);
-        tracks.removeEventListener('addtrack', textTracksChanges);
-        tracks.removeEventListener('removetrack', textTracksChanges);
-        for (let i = 0; i < tracks.length; i++) {
-          const track = tracks[i];
-          track.removeEventListener('cuechange', updateDisplay);
-        }
-      });
-    }
-
-    /**
-     * Create and returns a remote {@link TextTrack} object.
-     *
-     * @param {string} kind
-     *        `TextTrack` kind (subtitles, captions, descriptions, chapters, or metadata)
-     *
-     * @param {string} [label]
-     *        Label to identify the text track
-     *
-     * @param {string} [language]
-     *        Two letter language abbreviation
-     *
-     * @return {TextTrack}
-     *         The TextTrack that gets created.
-     */
-    addTextTrack(kind, label, language) {
-      if (!kind) {
-        throw new Error('TextTrack kind is required but was not provided');
-      }
-      return createTrackHelper(this, kind, label, language);
-    }
-
-    /**
-     * Create an emulated TextTrack for use by addRemoteTextTrack
-     *
-     * This is intended to be overridden by classes that inherit from
-     * Tech in order to create native or custom TextTracks.
-     *
-     * @param {Object} options
-     *        The object should contain the options to initialize the TextTrack with.
-     *
-     * @param {string} [options.kind]
-     *        `TextTrack` kind (subtitles, captions, descriptions, chapters, or metadata).
-     *
-     * @param {string} [options.label].
-     *        Label to identify the text track
-     *
-     * @param {string} [options.language]
-     *        Two letter language abbreviation.
-     *
-     * @return {HTMLTrackElement}
-     *         The track element that gets created.
-     */
-    createRemoteTextTrack(options) {
-      const track = merge$2(options, {
-        tech: this
-      });
-      return new REMOTE.remoteTextEl.TrackClass(track);
-    }
-
-    /**
-     * Creates a remote text track object and returns an html track element.
-     *
-     * > Note: This can be an emulated {@link HTMLTrackElement} or a native one.
-     *
-     * @param {Object} options
-     *        See {@link Tech#createRemoteTextTrack} for more detailed properties.
-     *
-     * @param {boolean} [manualCleanup=false]
-     *        - When false: the TextTrack will be automatically removed from the video
-     *          element whenever the source changes
-     *        - When True: The TextTrack will have to be cleaned up manually
-     *
-     * @return {HTMLTrackElement}
-     *         An Html Track Element.
-     *
-     */
-    addRemoteTextTrack(options = {}, manualCleanup) {
-      const htmlTrackElement = this.createRemoteTextTrack(options);
-      if (typeof manualCleanup !== 'boolean') {
-        manualCleanup = false;
-      }
-
-      // store HTMLTrackElement and TextTrack to remote list
-      this.remoteTextTrackEls().addTrackElement_(htmlTrackElement);
-      this.remoteTextTracks().addTrack(htmlTrackElement.track);
-      if (manualCleanup === false) {
-        // create the TextTrackList if it doesn't exist
-        this.ready(() => this.autoRemoteTextTracks_.addTrack(htmlTrackElement.track));
-      }
-      return htmlTrackElement;
-    }
-
-    /**
-     * Remove a remote text track from the remote `TextTrackList`.
-     *
-     * @param {TextTrack} track
-     *        `TextTrack` to remove from the `TextTrackList`
-     */
-    removeRemoteTextTrack(track) {
-      const trackElement = this.remoteTextTrackEls().getTrackElementByTrack_(track);
-
-      // remove HTMLTrackElement and TextTrack from remote list
-      this.remoteTextTrackEls().removeTrackElement_(trackElement);
-      this.remoteTextTracks().removeTrack(track);
-      this.autoRemoteTextTracks_.removeTrack(track);
-    }
-
-    /**
-     * Gets available media playback quality metrics as specified by the W3C's Media
-     * Playback Quality API.
-     *
-     * @see [Spec]{@link https://wicg.github.io/media-playback-quality}
-     *
-     * @return {Object}
-     *         An object with supported media playback quality metrics
-     *
-     * @abstract
-     */
-    getVideoPlaybackQuality() {
-      return {};
-    }
-
-    /**
-     * Attempt to create a floating video window always on top of other windows
-     * so that users may continue consuming media while they interact with other
-     * content sites, or applications on their device.
-     *
-     * @see [Spec]{@link https://wicg.github.io/picture-in-picture}
-     *
-     * @return {Promise|undefined}
-     *         A promise with a Picture-in-Picture window if the browser supports
-     *         Promises (or one was passed in as an option). It returns undefined
-     *         otherwise.
-     *
-     * @abstract
-     */
-    requestPictureInPicture() {
-      return Promise.reject();
-    }
-
-    /**
-     * A method to check for the value of the 'disablePictureInPicture' <video> property.
-     * Defaults to true, as it should be considered disabled if the tech does not support pip
-     *
-     * @abstract
-     */
-    disablePictureInPicture() {
-      return true;
-    }
-
-    /**
-     * A method to set or unset the 'disablePictureInPicture' <video> property.
-     *
-     * @abstract
-     */
-    setDisablePictureInPicture() {}
-
-    /**
-     * A fallback implementation of requestVideoFrameCallback using requestAnimationFrame
-     *
-     * @param {function} cb
-     * @return {number} request id
-     */
-    requestVideoFrameCallback(cb) {
-      const id = newGUID();
-      if (!this.isReady_ || this.paused()) {
-        this.queuedHanders_.add(id);
-        this.one('playing', () => {
-          if (this.queuedHanders_.has(id)) {
-            this.queuedHanders_.delete(id);
-            cb();
-          }
-        });
-      } else {
-        this.requestNamedAnimationFrame(id, cb);
-      }
-      return id;
-    }
-
-    /**
-     * A fallback implementation of cancelVideoFrameCallback
-     *
-     * @param {number} id id of callback to be cancelled
-     */
-    cancelVideoFrameCallback(id) {
-      if (this.queuedHanders_.has(id)) {
-        this.queuedHanders_.delete(id);
-      } else {
-        this.cancelNamedAnimationFrame(id);
-      }
-    }
-
-    /**
-     * A method to set a poster from a `Tech`.
-     *
-     * @abstract
-     */
-    setPoster() {}
-
-    /**
-     * A method to check for the presence of the 'playsinline' <video> attribute.
-     *
-     * @abstract
-     */
-    playsinline() {}
-
-    /**
-     * A method to set or unset the 'playsinline' <video> attribute.
-     *
-     * @abstract
-     */
-    setPlaysinline() {}
-
-    /**
-     * Attempt to force override of native audio tracks.
-     *
-     * @param {boolean} override - If set to true native audio will be overridden,
-     * otherwise native audio will potentially be used.
-     *
-     * @abstract
-     */
-    overrideNativeAudioTracks(override) {}
-
-    /**
-     * Attempt to force override of native video tracks.
-     *
-     * @param {boolean} override - If set to true native video will be overridden,
-     * otherwise native video will potentially be used.
-     *
-     * @abstract
-     */
-    overrideNativeVideoTracks(override) {}
-
-    /**
-     * Check if the tech can support the given mime-type.
-     *
-     * The base tech does not support any type, but source handlers might
-     * overwrite this.
-     *
-     * @param  {string} _type
-     *         The mimetype to check for support
-     *
-     * @return {string}
-     *         'probably', 'maybe', or empty string
-     *
-     * @see [Spec]{@link https://developer.mozilla.org/en-US/docs/Web/API/HTMLMediaElement/canPlayType}
-     *
-     * @abstract
-     */
-    canPlayType(_type) {
-      return '';
-    }
-
-    /**
-     * Check if the type is supported by this tech.
-     *
-     * The base tech does not support any type, but source handlers might
-     * overwrite this.
-     *
-     * @param {string} _type
-     *        The media type to check
-     * @return {string} Returns the native video element's response
-     */
-    static canPlayType(_type) {
-      return '';
-    }
-
-    /**
-     * Check if the tech can support the given source
-     *
-     * @param {Object} srcObj
-     *        The source object
-     * @param {Object} options
-     *        The options passed to the tech
-     * @return {string} 'probably', 'maybe', or '' (empty string)
-     */
-    static canPlaySource(srcObj, options) {
-      return Tech.canPlayType(srcObj.type);
-    }
-
-    /*
-     * Return whether the argument is a Tech or not.
-     * Can be passed either a Class like `Html5` or a instance like `player.tech_`
-     *
-     * @param {Object} component
-     *        The item to check
-     *
-     * @return {boolean}
-     *         Whether it is a tech or not
-     *         - True if it is a tech
-     *         - False if it is not
-     */
-    static isTech(component) {
-      return component.prototype instanceof Tech || component instanceof Tech || component === Tech;
-    }
-
-    /**
-     * Registers a `Tech` into a shared list for videojs.
-     *
-     * @param {string} name
-     *        Name of the `Tech` to register.
-     *
-     * @param {Object} tech
-     *        The `Tech` class to register.
-     */
-    static registerTech(name, tech) {
-      if (!Tech.techs_) {
-        Tech.techs_ = {};
-      }
-      if (!Tech.isTech(tech)) {
-        throw new Error(`Tech ${name} must be a Tech`);
-      }
-      if (!Tech.canPlayType) {
-        throw new Error('Techs must have a static canPlayType method on them');
-      }
-      if (!Tech.canPlaySource) {
-        throw new Error('Techs must have a static canPlaySource method on them');
-      }
-      name = toTitleCase$1(name);
-      Tech.techs_[name] = tech;
-      Tech.techs_[toLowerCase(name)] = tech;
-      if (name !== 'Tech') {
-        // camel case the techName for use in techOrder
-        Tech.defaultTechOrder_.push(name);
-      }
-      return tech;
-    }
-
-    /**
-     * Get a `Tech` from the shared list by name.
-     *
-     * @param {string} name
-     *        `camelCase` or `TitleCase` name of the Tech to get
-     *
-     * @return {Tech|undefined}
-     *         The `Tech` or undefined if there was no tech with the name requested.
-     */
-    static getTech(name) {
-      if (!name) {
-        return;
-      }
-      if (Tech.techs_ && Tech.techs_[name]) {
-        return Tech.techs_[name];
-      }
-      name = toTitleCase$1(name);
-      if (window && window.videojs && window.videojs[name]) {
-        log$1.warn(`The ${name} tech was added to the videojs object when it should be registered using videojs.registerTech(name, tech)`);
-        return window.videojs[name];
-      }
-    }
-  }
-
-  /**
-   * Get the {@link VideoTrackList}
-   *
-   * @returns {VideoTrackList}
-   * @method Tech.prototype.videoTracks
-   */
-
-  /**
-   * Get the {@link AudioTrackList}
-   *
-   * @returns {AudioTrackList}
-   * @method Tech.prototype.audioTracks
-   */
-
-  /**
-   * Get the {@link TextTrackList}
-   *
-   * @returns {TextTrackList}
-   * @method Tech.prototype.textTracks
-   */
-
-  /**
-   * Get the remote element {@link TextTrackList}
-   *
-   * @returns {TextTrackList}
-   * @method Tech.prototype.remoteTextTracks
-   */
-
-  /**
-   * Get the remote element {@link HtmlTrackElementList}
-   *
-   * @returns {HtmlTrackElementList}
-   * @method Tech.prototype.remoteTextTrackEls
-   */
-
-  ALL.names.forEach(function (name) {
-    const props = ALL[name];
-    Tech.prototype[props.getterName] = function () {
-      this[props.privateName] = this[props.privateName] || new props.ListClass();
-      return this[props.privateName];
-    };
-  });
-
-  /**
-   * List of associated text tracks
-   *
-   * @type {TextTrackList}
-   * @private
-   * @property Tech#textTracks_
-   */
-
-  /**
-   * List of associated audio tracks.
-   *
-   * @type {AudioTrackList}
-   * @private
-   * @property Tech#audioTracks_
-   */
-
-  /**
-   * List of associated video tracks.
-   *
-   * @type {VideoTrackList}
-   * @private
-   * @property Tech#videoTracks_
-   */
-
-  /**
-   * Boolean indicating whether the `Tech` supports volume control.
-   *
-   * @type {boolean}
-   * @default
-   */
-  Tech.prototype.featuresVolumeControl = true;
-
-  /**
-   * Boolean indicating whether the `Tech` supports muting volume.
-   *
-   * @type {boolean}
-   * @default
-   */
-  Tech.prototype.featuresMuteControl = true;
-
-  /**
-   * Boolean indicating whether the `Tech` supports fullscreen resize control.
-   * Resizing plugins using request fullscreen reloads the plugin
-   *
-   * @type {boolean}
-   * @default
-   */
-  Tech.prototype.featuresFullscreenResize = false;
-
-  /**
-   * Boolean indicating whether the `Tech` supports changing the speed at which the video
-   * plays. Examples:
-   *   - Set player to play 2x (twice) as fast
-   *   - Set player to play 0.5x (half) as fast
-   *
-   * @type {boolean}
-   * @default
-   */
-  Tech.prototype.featuresPlaybackRate = false;
-
-  /**
-   * Boolean indicating whether the `Tech` supports the `progress` event.
-   * This will be used to determine if {@link Tech#manualProgressOn} should be called.
-   *
-   * @type {boolean}
-   * @default
-   */
-  Tech.prototype.featuresProgressEvents = false;
-
-  /**
-   * Boolean indicating whether the `Tech` supports the `sourceset` event.
-   *
-   * A tech should set this to `true` and then use {@link Tech#triggerSourceset}
-   * to trigger a {@link Tech#event:sourceset} at the earliest time after getting
-   * a new source.
-   *
-   * @type {boolean}
-   * @default
-   */
-  Tech.prototype.featuresSourceset = false;
-
-  /**
-   * Boolean indicating whether the `Tech` supports the `timeupdate` event.
-   * This will be used to determine if {@link Tech#manualTimeUpdates} should be called.
-   *
-   * @type {boolean}
-   * @default
-   */
-  Tech.prototype.featuresTimeupdateEvents = false;
-
-  /**
-   * Boolean indicating whether the `Tech` supports the native `TextTrack`s.
-   * This will help us integrate with native `TextTrack`s if the browser supports them.
-   *
-   * @type {boolean}
-   * @default
-   */
-  Tech.prototype.featuresNativeTextTracks = false;
-
-  /**
-   * Boolean indicating whether the `Tech` supports `requestVideoFrameCallback`.
-   *
-   * @type {boolean}
-   * @default
-   */
-  Tech.prototype.featuresVideoFrameCallback = false;
-
-  /**
-   * A functional mixin for techs that want to use the Source Handler pattern.
-   * Source handlers are scripts for handling specific formats.
-   * The source handler pattern is used for adaptive formats (HLS, DASH) that
-   * manually load video data and feed it into a Source Buffer (Media Source Extensions)
-   * Example: `Tech.withSourceHandlers.call(MyTech);`
-   *
-   * @param {Tech} _Tech
-   *        The tech to add source handler functions to.
-   *
-   * @mixes Tech~SourceHandlerAdditions
-   */
-  Tech.withSourceHandlers = function (_Tech) {
-    /**
-     * Register a source handler
-     *
-     * @param {Function} handler
-     *        The source handler class
-     *
-     * @param {number} [index]
-     *        Register it at the following index
-     */
-    _Tech.registerSourceHandler = function (handler, index) {
-      let handlers = _Tech.sourceHandlers;
-      if (!handlers) {
-        handlers = _Tech.sourceHandlers = [];
-      }
-      if (index === undefined) {
-        // add to the end of the list
-        index = handlers.length;
-      }
-      handlers.splice(index, 0, handler);
-    };
-
-    /**
-     * Check if the tech can support the given type. Also checks the
-     * Techs sourceHandlers.
-     *
-     * @param {string} type
-     *         The mimetype to check.
-     *
-     * @return {string}
-     *         'probably', 'maybe', or '' (empty string)
-     */
-    _Tech.canPlayType = function (type) {
-      const handlers = _Tech.sourceHandlers || [];
-      let can;
-      for (let i = 0; i < handlers.length; i++) {
-        can = handlers[i].canPlayType(type);
-        if (can) {
-          return can;
-        }
-      }
-      return '';
-    };
-
-    /**
-     * Returns the first source handler that supports the source.
-     *
-     * TODO: Answer question: should 'probably' be prioritized over 'maybe'
-     *
-     * @param {SourceObject} source
-     *        The source object
-     *
-     * @param {Object} options
-     *        The options passed to the tech
-     *
-     * @return {SourceHandler|null}
-     *          The first source handler that supports the source or null if
-     *          no SourceHandler supports the source
-     */
-    _Tech.selectSourceHandler = function (source, options) {
-      const handlers = _Tech.sourceHandlers || [];
-      let can;
-      for (let i = 0; i < handlers.length; i++) {
-        can = handlers[i].canHandleSource(source, options);
-        if (can) {
-          return handlers[i];
-        }
-      }
-      return null;
-    };
-
-    /**
-     * Check if the tech can support the given source.
-     *
-     * @param {SourceObject} srcObj
-     *        The source object
-     *
-     * @param {Object} options
-     *        The options passed to the tech
-     *
-     * @return {string}
-     *         'probably', 'maybe', or '' (empty string)
-     */
-    _Tech.canPlaySource = function (srcObj, options) {
-      const sh = _Tech.selectSourceHandler(srcObj, options);
-      if (sh) {
-        return sh.canHandleSource(srcObj, options);
-      }
-      return '';
-    };
-
-    /**
-     * When using a source handler, prefer its implementation of
-     * any function normally provided by the tech.
-     */
-    const deferrable = ['seekable', 'seeking', 'duration'];
-
-    /**
-     * A wrapper around {@link Tech#seekable} that will call a `SourceHandler`s seekable
-     * function if it exists, with a fallback to the Techs seekable function.
-     *
-     * @method _Tech.seekable
-     */
-
-    /**
-     * A wrapper around {@link Tech#duration} that will call a `SourceHandler`s duration
-     * function if it exists, otherwise it will fallback to the techs duration function.
-     *
-     * @method _Tech.duration
-     */
-
-    deferrable.forEach(function (fnName) {
-      const originalFn = this[fnName];
-      if (typeof originalFn !== 'function') {
-        return;
-      }
-      this[fnName] = function () {
-        if (this.sourceHandler_ && this.sourceHandler_[fnName]) {
-          return this.sourceHandler_[fnName].apply(this.sourceHandler_, arguments);
-        }
-        return originalFn.apply(this, arguments);
-      };
-    }, _Tech.prototype);
-
-    /**
-     * Create a function for setting the source using a source object
-     * and source handlers.
-     * Should never be called unless a source handler was found.
-     *
-     * @param {SourceObject} source
-     *        A source object with src and type keys
-     */
-    _Tech.prototype.setSource = function (source) {
-      let sh = _Tech.selectSourceHandler(source, this.options_);
-      if (!sh) {
-        // Fall back to a native source handler when unsupported sources are
-        // deliberately set
-        if (_Tech.nativeSourceHandler) {
-          sh = _Tech.nativeSourceHandler;
-        } else {
-          log$1.error('No source handler found for the current source.');
-        }
-      }
-
-      // Dispose any existing source handler
-      this.disposeSourceHandler();
-      this.off('dispose', this.disposeSourceHandler_);
-      if (sh !== _Tech.nativeSourceHandler) {
-        this.currentSource_ = source;
-      }
-      this.sourceHandler_ = sh.handleSource(source, this, this.options_);
-      this.one('dispose', this.disposeSourceHandler_);
-    };
-
-    /**
-     * Clean up any existing SourceHandlers and listeners when the Tech is disposed.
-     *
-     * @listens Tech#dispose
-     */
-    _Tech.prototype.disposeSourceHandler = function () {
-      // if we have a source and get another one
-      // then we are loading something new
-      // than clear all of our current tracks
-      if (this.currentSource_) {
-        this.clearTracks(['audio', 'video']);
-        this.currentSource_ = null;
-      }
-
-      // always clean up auto-text tracks
-      this.cleanupAutoTextTracks();
-      if (this.sourceHandler_) {
-        if (this.sourceHandler_.dispose) {
-          this.sourceHandler_.dispose();
-        }
-        this.sourceHandler_ = null;
-      }
-    };
-  };
-
-  // The base Tech class needs to be registered as a Component. It is the only
-  // Tech that can be registered as a Component.
-  Component$1.registerComponent('Tech', Tech);
-  Tech.registerTech('Tech', Tech);
-
-  /**
-   * A list of techs that should be added to techOrder on Players
-   *
-   * @private
-   */
-  Tech.defaultTechOrder_ = [];
-
-  /**
-   * @file middleware.js
-   * @module middleware
-   */
-  const middlewares = {};
-  const middlewareInstances = {};
-  const TERMINATOR = {};
-
-  /**
-   * A middleware object is a plain JavaScript object that has methods that
-   * match the {@link Tech} methods found in the lists of allowed
-   * {@link module:middleware.allowedGetters|getters},
-   * {@link module:middleware.allowedSetters|setters}, and
-   * {@link module:middleware.allowedMediators|mediators}.
-   *
-   * @typedef {Object} MiddlewareObject
-   */
-
-  /**
-   * A middleware factory function that should return a
-   * {@link module:middleware~MiddlewareObject|MiddlewareObject}.
-   *
-   * This factory will be called for each player when needed, with the player
-   * passed in as an argument.
-   *
-   * @callback MiddlewareFactory
-   * @param { import('../player').default } player
-   *        A Video.js player.
-   */
-
-  /**
-   * Define a middleware that the player should use by way of a factory function
-   * that returns a middleware object.
-   *
-   * @param  {string} type
-   *         The MIME type to match or `"*"` for all MIME types.
-   *
-   * @param  {MiddlewareFactory} middleware
-   *         A middleware factory function that will be executed for
-   *         matching types.
-   */
-  function use(type, middleware) {
-    middlewares[type] = middlewares[type] || [];
-    middlewares[type].push(middleware);
-  }
-
-  /**
-   * Asynchronously sets a source using middleware by recursing through any
-   * matching middlewares and calling `setSource` on each, passing along the
-   * previous returned value each time.
-   *
-   * @param  { import('../player').default } player
-   *         A {@link Player} instance.
-   *
-   * @param  {Tech~SourceObject} src
-   *         A source object.
-   *
-   * @param  {Function}
-   *         The next middleware to run.
-   */
-  function setSource(player, src, next) {
-    player.setTimeout(() => setSourceHelper(src, middlewares[src.type], next, player), 1);
-  }
-
-  /**
-   * When the tech is set, passes the tech to each middleware's `setTech` method.
-   *
-   * @param {Object[]} middleware
-   *        An array of middleware instances.
-   *
-   * @param { import('../tech/tech').default } tech
-   *        A Video.js tech.
-   */
-  function setTech(middleware, tech) {
-    middleware.forEach(mw => mw.setTech && mw.setTech(tech));
-  }
-
-  /**
-   * Calls a getter on the tech first, through each middleware
-   * from right to left to the player.
-   *
-   * @param  {Object[]} middleware
-   *         An array of middleware instances.
-   *
-   * @param  { import('../tech/tech').default } tech
-   *         The current tech.
-   *
-   * @param  {string} method
-   *         A method name.
-   *
-   * @return {*}
-   *         The final value from the tech after middleware has intercepted it.
-   */
-  function get(middleware, tech, method) {
-    return middleware.reduceRight(middlewareIterator(method), tech[method]());
-  }
-
-  /**
-   * Takes the argument given to the player and calls the setter method on each
-   * middleware from left to right to the tech.
-   *
-   * @param  {Object[]} middleware
-   *         An array of middleware instances.
-   *
-   * @param  { import('../tech/tech').default } tech
-   *         The current tech.
-   *
-   * @param  {string} method
-   *         A method name.
-   *
-   * @param  {*} arg
-   *         The value to set on the tech.
-   *
-   * @return {*}
-   *         The return value of the `method` of the `tech`.
-   */
-  function set(middleware, tech, method, arg) {
-    return tech[method](middleware.reduce(middlewareIterator(method), arg));
-  }
-
-  /**
-   * Takes the argument given to the player and calls the `call` version of the
-   * method on each middleware from left to right.
-   *
-   * Then, call the passed in method on the tech and return the result unchanged
-   * back to the player, through middleware, this time from right to left.
-   *
-   * @param  {Object[]} middleware
-   *         An array of middleware instances.
-   *
-   * @param  { import('../tech/tech').default } tech
-   *         The current tech.
-   *
-   * @param  {string} method
-   *         A method name.
-   *
-   * @param  {*} arg
-   *         The value to set on the tech.
-   *
-   * @return {*}
-   *         The return value of the `method` of the `tech`, regardless of the
-   *         return values of middlewares.
-   */
-  function mediate(middleware, tech, method, arg = null) {
-    const callMethod = 'call' + toTitleCase$1(method);
-    const middlewareValue = middleware.reduce(middlewareIterator(callMethod), arg);
-    const terminated = middlewareValue === TERMINATOR;
-    // deprecated. The `null` return value should instead return TERMINATOR to
-    // prevent confusion if a techs method actually returns null.
-    const returnValue = terminated ? null : tech[method](middlewareValue);
-    executeRight(middleware, method, returnValue, terminated);
-    return returnValue;
-  }
-
-  /**
-   * Enumeration of allowed getters where the keys are method names.
-   *
-   * @type {Object}
-   */
-  const allowedGetters = {
-    buffered: 1,
-    currentTime: 1,
-    duration: 1,
-    muted: 1,
-    played: 1,
-    paused: 1,
-    seekable: 1,
-    volume: 1,
-    ended: 1
-  };
-
-  /**
-   * Enumeration of allowed setters where the keys are method names.
-   *
-   * @type {Object}
-   */
-  const allowedSetters = {
-    setCurrentTime: 1,
-    setMuted: 1,
-    setVolume: 1
-  };
-
-  /**
-   * Enumeration of allowed mediators where the keys are method names.
-   *
-   * @type {Object}
-   */
-  const allowedMediators = {
-    play: 1,
-    pause: 1
-  };
-  function middlewareIterator(method) {
-    return (value, mw) => {
-      // if the previous middleware terminated, pass along the termination
-      if (value === TERMINATOR) {
-        return TERMINATOR;
-      }
-      if (mw[method]) {
-        return mw[method](value);
-      }
-      return value;
-    };
-  }
-  function executeRight(mws, method, value, terminated) {
-    for (let i = mws.length - 1; i >= 0; i--) {
-      const mw = mws[i];
-      if (mw[method]) {
-        mw[method](terminated, value);
-      }
-    }
-  }
-
-  /**
-   * Clear the middleware cache for a player.
-   *
-   * @param  { import('../player').default } player
-   *         A {@link Player} instance.
-   */
-  function clearCacheForPlayer(player) {
-    middlewareInstances[player.id()] = null;
-  }
-
-  /**
-   * {
-   *  [playerId]: [[mwFactory, mwInstance], ...]
-   * }
-   *
-   * @private
-   */
-  function getOrCreateFactory(player, mwFactory) {
-    const mws = middlewareInstances[player.id()];
-    let mw = null;
-    if (mws === undefined || mws === null) {
-      mw = mwFactory(player);
-      middlewareInstances[player.id()] = [[mwFactory, mw]];
-      return mw;
-    }
-    for (let i = 0; i < mws.length; i++) {
-      const [mwf, mwi] = mws[i];
-      if (mwf !== mwFactory) {
-        continue;
-      }
-      mw = mwi;
-    }
-    if (mw === null) {
-      mw = mwFactory(player);
-      mws.push([mwFactory, mw]);
-    }
-    return mw;
-  }
-  function setSourceHelper(src = {}, middleware = [], next, player, acc = [], lastRun = false) {
-    const [mwFactory, ...mwrest] = middleware;
-
-    // if mwFactory is a string, then we're at a fork in the road
-    if (typeof mwFactory === 'string') {
-      setSourceHelper(src, middlewares[mwFactory], next, player, acc, lastRun);
-
-      // if we have an mwFactory, call it with the player to get the mw,
-      // then call the mw's setSource method
-    } else if (mwFactory) {
-      const mw = getOrCreateFactory(player, mwFactory);
-
-      // if setSource isn't present, implicitly select this middleware
-      if (!mw.setSource) {
-        acc.push(mw);
-        return setSourceHelper(src, mwrest, next, player, acc, lastRun);
-      }
-      mw.setSource(Object.assign({}, src), function (err, _src) {
-        // something happened, try the next middleware on the current level
-        // make sure to use the old src
-        if (err) {
-          return setSourceHelper(src, mwrest, next, player, acc, lastRun);
-        }
-
-        // we've succeeded, now we need to go deeper
-        acc.push(mw);
-
-        // if it's the same type, continue down the current chain
-        // otherwise, we want to go down the new chain
-        setSourceHelper(_src, src.type === _src.type ? mwrest : middlewares[_src.type], next, player, acc, lastRun);
-      });
-    } else if (mwrest.length) {
-      setSourceHelper(src, mwrest, next, player, acc, lastRun);
-    } else if (lastRun) {
-      next(src, acc);
-    } else {
-      setSourceHelper(src, middlewares['*'], next, player, acc, true);
-    }
-  }
-
-  /**
-   * Mimetypes
-   *
-   * @see https://www.iana.org/assignments/media-types/media-types.xhtml
-   * @typedef Mimetypes~Kind
-   * @enum
-   */
-  const MimetypesKind = {
-    opus: 'video/ogg',
-    ogv: 'video/ogg',
-    mp4: 'video/mp4',
-    mov: 'video/mp4',
-    m4v: 'video/mp4',
-    mkv: 'video/x-matroska',
-    m4a: 'audio/mp4',
-    mp3: 'audio/mpeg',
-    aac: 'audio/aac',
-    caf: 'audio/x-caf',
-    flac: 'audio/flac',
-    oga: 'audio/ogg',
-    wav: 'audio/wav',
-    m3u8: 'application/x-mpegURL',
-    mpd: 'application/dash+xml',
-    jpg: 'image/jpeg',
-    jpeg: 'image/jpeg',
-    gif: 'image/gif',
-    png: 'image/png',
-    svg: 'image/svg+xml',
-    webp: 'image/webp'
-  };
-
-  /**
-   * Get the mimetype of a given src url if possible
-   *
-   * @param {string} src
-   *        The url to the src
-   *
-   * @return {string}
-   *         return the mimetype if it was known or empty string otherwise
-   */
-  const getMimetype = function (src = '') {
-    const ext = getFileExtension(src);
-    const mimetype = MimetypesKind[ext.toLowerCase()];
-    return mimetype || '';
-  };
-
-  /**
-   * Find the mime type of a given source string if possible. Uses the player
-   * source cache.
-   *
-   * @param { import('../player').default } player
-   *        The player object
-   *
-   * @param {string} src
-   *        The source string
-   *
-   * @return {string}
-   *         The type that was found
-   */
-  const findMimetype = (player, src) => {
-    if (!src) {
-      return '';
-    }
-
-    // 1. check for the type in the `source` cache
-    if (player.cache_.source.src === src && player.cache_.source.type) {
-      return player.cache_.source.type;
-    }
-
-    // 2. see if we have this source in our `currentSources` cache
-    const matchingSources = player.cache_.sources.filter(s => s.src === src);
-    if (matchingSources.length) {
-      return matchingSources[0].type;
-    }
-
-    // 3. look for the src url in source elements and use the type there
-    const sources = player.$$('source');
-    for (let i = 0; i < sources.length; i++) {
-      const s = sources[i];
-      if (s.type && s.src && s.src === src) {
-        return s.type;
-      }
-    }
-
-    // 4. finally fallback to our list of mime types based on src url extension
-    return getMimetype(src);
-  };
-
-  /**
-   * @module filter-source
-   */
-
-  /**
-   * Filter out single bad source objects or multiple source objects in an
-   * array. Also flattens nested source object arrays into a 1 dimensional
-   * array of source objects.
-   *
-   * @param {Tech~SourceObject|Tech~SourceObject[]} src
-   *        The src object to filter
-   *
-   * @return {Tech~SourceObject[]}
-   *         An array of sourceobjects containing only valid sources
-   *
-   * @private
-   */
-  const filterSource = function (src) {
-    // traverse array
-    if (Array.isArray(src)) {
-      let newsrc = [];
-      src.forEach(function (srcobj) {
-        srcobj = filterSource(srcobj);
-        if (Array.isArray(srcobj)) {
-          newsrc = newsrc.concat(srcobj);
-        } else if (isObject$1(srcobj)) {
-          newsrc.push(srcobj);
-        }
-      });
-      src = newsrc;
-    } else if (typeof src === 'string' && src.trim()) {
-      // convert string into object
-      src = [fixSource({
-        src
-      })];
-    } else if (isObject$1(src) && typeof src.src === 'string' && src.src && src.src.trim()) {
-      // src is already valid
-      src = [fixSource(src)];
-    } else {
-      // invalid source, turn it into an empty array
-      src = [];
-    }
-    return src;
-  };
-
-  /**
-   * Checks src mimetype, adding it when possible
-   *
-   * @param {Tech~SourceObject} src
-   *        The src object to check
-   * @return {Tech~SourceObject}
-   *        src Object with known type
-   */
-  function fixSource(src) {
-    if (!src.type) {
-      const mimetype = getMimetype(src.src);
-      if (mimetype) {
-        src.type = mimetype;
-      }
-    }
-    return src;
-  }
-
-  var icons = "<svg xmlns=\"http://www.w3.org/2000/svg\">\n  <defs>\n    <symbol viewBox=\"0 0 48 48\" id=\"vjs-icon-play\">\n      <path d=\"M16 10v28l22-14z\"></path>\n    </symbol>\n    <symbol viewBox=\"0 0 48 48\" id=\"vjs-icon-pause\">\n      <path d=\"M12 38h8V10h-8v28zm16-28v28h8V10h-8z\"></path>\n    </symbol>\n    <symbol viewBox=\"0 0 48 48\" id=\"vjs-icon-audio\">\n      <path d=\"M24 2C14.06 2 6 10.06 6 20v14c0 3.31 2.69 6 6 6h6V24h-8v-4c0-7.73 6.27-14 14-14s14 6.27 14 14v4h-8v16h6c3.31 0 6-2.69 6-6V20c0-9.94-8.06-18-18-18z\"></path>\n    </symbol>\n    <symbol viewBox=\"0 0 48 48\" id=\"vjs-icon-captions\">\n      <path d=\"M38 8H10c-2.21 0-4 1.79-4 4v24c0 2.21 1.79 4 4 4h28c2.21 0 4-1.79 4-4V12c0-2.21-1.79-4-4-4zM22 22h-3v-1h-4v6h4v-1h3v2a2 2 0 0 1-2 2h-6a2 2 0 0 1-2-2v-8a2 2 0 0 1 2-2h6a2 2 0 0 1 2 2v2zm14 0h-3v-1h-4v6h4v-1h3v2a2 2 0 0 1-2 2h-6a2 2 0 0 1-2-2v-8a2 2 0 0 1 2-2h6a2 2 0 0 1 2 2v2z\"></path>\n    </symbol>\n    <symbol viewBox=\"0 0 48 48\" id=\"vjs-icon-subtitles\">\n      <path d=\"M40 8H8c-2.21 0-4 1.79-4 4v24c0 2.21 1.79 4 4 4h32c2.21 0 4-1.79 4-4V12c0-2.21-1.79-4-4-4zM8 24h8v4H8v-4zm20 12H8v-4h20v4zm12 0h-8v-4h8v4zm0-8H20v-4h20v4z\"></path>\n    </symbol>\n    <symbol viewBox=\"0 0 48 48\" id=\"vjs-icon-fullscreen-enter\">\n      <path d=\"M14 28h-4v10h10v-4h-6v-6zm-4-8h4v-6h6v-4H10v10zm24 14h-6v4h10V28h-4v6zm-6-24v4h6v6h4V10H28z\"></path>\n    </symbol>\n    <symbol viewBox=\"0 0 48 48\" id=\"vjs-icon-fullscreen-exit\">\n      <path d=\"M10 32h6v6h4V28H10v4zm6-16h-6v4h10V10h-4v6zm12 22h4v-6h6v-4H28v10zm4-22v-6h-4v10h10v-4h-6z\"></path>\n    </symbol>\n    <symbol viewBox=\"0 0 48 48\" id=\"vjs-icon-play-circle\">\n      <path d=\"M20 33l12-9-12-9v18zm4-29C12.95 4 4 12.95 4 24s8.95 20 20 20 20-8.95 20-20S35.05 4 24 4zm0 36c-8.82 0-16-7.18-16-16S15.18 8 24 8s16 7.18 16 16-7.18 16-16 16z\"></path>\n    </symbol>\n    <symbol viewBox=\"0 0 48 48\" id=\"vjs-icon-volume-mute\">\n      <path d=\"M33 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id=\"vjs-icon-file-download\">\n      <path d=\"M10.8 40.55q-1.35 0-2.375-1T7.4 37.15v-7.7h3.4v7.7h26.35v-7.7h3.4v7.7q0 1.4-1 2.4t-2.4 1zM24 32.1L13.9 22.05l2.45-2.45 5.95 5.95V7.15h3.4v18.4l5.95-5.95 2.45 2.45z\"></path>\n    </symbol>\n    <symbol viewBox=\"0 0 48 48\" id=\"vjs-icon-file-download-done\">\n      <path d=\"M9.8 40.5v-3.45h28.4v3.45zm9.2-9.05L7.4 19.85l2.45-2.35L19 26.65l19.2-19.2 2.4 2.4z\"></path>\n    </symbol>\n    <symbol viewBox=\"0 0 48 48\" id=\"vjs-icon-file-download-off\">\n      <path d=\"M4.9 4.75L43.25 43.1 41 45.3l-4.75-4.75q-.05.05-.075.025-.025-.025-.075-.025H10.8q-1.35 0-2.375-1T7.4 37.15v-7.7h3.4v7.7h22.05l-7-7-1.85 1.8L13.9 21.9l1.85-1.85L2.7 7zm26.75 14.7l2.45 2.45-3.75 3.8-2.45-2.5zM25.7 7.15V21.1l-3.4-3.45V7.15z\"></path>\n    </symbol>\n    <symbol viewBox=\"0 0 48 48\" id=\"vjs-icon-share\">\n      <path d=\"M36 32.17c-1.52 0-2.89.59-3.93 1.54L17.82 25.4c.11-.45.18-.92.18-1.4s-.07-.95-.18-1.4l14.1-8.23c1.07 1 2.5 1.62 4.08 1.62 3.31 0 6-2.69 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-
-  /**
-   * @file loader.js
-   */
-
-  /**
-   * The `MediaLoader` is the `Component` that decides which playback technology to load
-   * when a player is initialized.
-   *
-   * @extends Component
-   */
-  class MediaLoader extends Component$1 {
-    /**
-     * Create an instance of this class.
-     *
-     * @param { import('../player').default } player
-     *        The `Player` that this class should attach to.
-     *
-     * @param {Object} [options]
-     *        The key/value store of player options.
-     *
-     * @param {Function} [ready]
-     *        The function that is run when this component is ready.
-     */
-    constructor(player, options, ready) {
-      // MediaLoader has no element
-      const options_ = merge$2({
-        createEl: false
-      }, options);
-      super(player, options_, ready);
-
-      // If there are no sources when the player is initialized,
-      // load the first supported playback technology.
-
-      if (!options.playerOptions.sources || options.playerOptions.sources.length === 0) {
-        for (let i = 0, j = options.playerOptions.techOrder; i < j.length; i++) {
-          const techName = toTitleCase$1(j[i]);
-          let tech = Tech.getTech(techName);
-
-          // Support old behavior of techs being registered as components.
-          // Remove once that deprecated behavior is removed.
-          if (!techName) {
-            tech = Component$1.getComponent(techName);
-          }
-
-          // Check if the browser supports this technology
-          if (tech && tech.isSupported()) {
-            player.loadTech_(techName);
-            break;
-          }
-        }
-      } else {
-        // Loop through playback technologies (e.g. HTML5) and check for support.
-        // Then load the best source.
-        // A few assumptions here:
-        //   All playback technologies respect preload false.
-        player.src(options.playerOptions.sources);
-      }
-    }
-  }
-  Component$1.registerComponent('MediaLoader', MediaLoader);
-
-  /**
-   * @file clickable-component.js
-   */
-
-  /**
-   * Component which is clickable or keyboard actionable, but is not a
-   * native HTML button.
-   *
-   * @extends Component
-   */
-  class ClickableComponent extends Component$1 {
-    /**
-     * Creates an instance of this class.
-     *
-     * @param  { import('./player').default } player
-     *         The `Player` that this class should be attached to.
-     *
-     * @param  {Object} [options]
-     *         The key/value store of component options.
-     *
-     * @param  {function} [options.clickHandler]
-     *         The function to call when the button is clicked / activated
-     *
-     * @param  {string} [options.controlText]
-     *         The text to set on the button
-     *
-     * @param  {string} [options.className]
-     *         A class or space separated list of classes to add the component
-     *
-     */
-    constructor(player, options) {
-      super(player, options);
-      if (this.options_.controlText) {
-        this.controlText(this.options_.controlText);
-      }
-      this.handleMouseOver_ = e => this.handleMouseOver(e);
-      this.handleMouseOut_ = e => this.handleMouseOut(e);
-      this.handleClick_ = e => this.handleClick(e);
-      this.handleKeyDown_ = e => this.handleKeyDown(e);
-      this.emitTapEvents();
-      this.enable();
-    }
-
-    /**
-     * Create the `ClickableComponent`s DOM element.
-     *
-     * @param {string} [tag=div]
-     *        The element's node type.
-     *
-     * @param {Object} [props={}]
-     *        An object of properties that should be set on the element.
-     *
-     * @param {Object} [attributes={}]
-     *        An object of attributes that should be set on the element.
-     *
-     * @return {Element}
-     *         The element that gets created.
-     */
-    createEl(tag = 'div', props = {}, attributes = {}) {
-      props = Object.assign({
-        className: this.buildCSSClass(),
-        tabIndex: 0
-      }, props);
-      if (tag === 'button') {
-        log$1.error(`Creating a ClickableComponent with an HTML element of ${tag} is not supported; use a Button instead.`);
-      }
-
-      // Add ARIA attributes for clickable element which is not a native HTML button
-      attributes = Object.assign({
-        role: 'button'
-      }, attributes);
-      this.tabIndex_ = props.tabIndex;
-      const el = createEl(tag, props, attributes);
-      if (!this.player_.options_.experimentalSvgIcons) {
-        el.appendChild(createEl('span', {
-          className: 'vjs-icon-placeholder'
-        }, {
-          'aria-hidden': true
-        }));
-      }
-      this.createControlTextEl(el);
-      return el;
-    }
-    dispose() {
-      // remove controlTextEl_ on dispose
-      this.controlTextEl_ = null;
-      super.dispose();
-    }
-
-    /**
-     * Create a control text element on this `ClickableComponent`
-     *
-     * @param {Element} [el]
-     *        Parent element for the control text.
-     *
-     * @return {Element}
-     *         The control text element that gets created.
-     */
-    createControlTextEl(el) {
-      this.controlTextEl_ = createEl('span', {
-        className: 'vjs-control-text'
-      }, {
-        // let the screen reader user know that the text of the element may change
-        'aria-live': 'polite'
-      });
-      if (el) {
-        el.appendChild(this.controlTextEl_);
-      }
-      this.controlText(this.controlText_, el);
-      return this.controlTextEl_;
-    }
-
-    /**
-     * Get or set the localize text to use for the controls on the `ClickableComponent`.
-     *
-     * @param {string} [text]
-     *        Control text for element.
-     *
-     * @param {Element} [el=this.el()]
-     *        Element to set the title on.
-     *
-     * @return {string}
-     *         - The control text when getting
-     */
-    controlText(text, el = this.el()) {
-      if (text === undefined) {
-        return this.controlText_ || 'Need Text';
-      }
-      const localizedText = this.localize(text);
-
-      /** @protected */
-      this.controlText_ = text;
-      textContent(this.controlTextEl_, localizedText);
-      if (!this.nonIconControl && !this.player_.options_.noUITitleAttributes) {
-        // Set title attribute if only an icon is shown
-        el.setAttribute('title', localizedText);
-      }
-    }
-
-    /**
-     * Builds the default DOM `className`.
-     *
-     * @return {string}
-     *         The DOM `className` for this object.
-     */
-    buildCSSClass() {
-      return `vjs-control vjs-button ${super.buildCSSClass()}`;
-    }
-
-    /**
-     * Enable this `ClickableComponent`
-     */
-    enable() {
-      if (!this.enabled_) {
-        this.enabled_ = true;
-        this.removeClass('vjs-disabled');
-        this.el_.setAttribute('aria-disabled', 'false');
-        if (typeof this.tabIndex_ !== 'undefined') {
-          this.el_.setAttribute('tabIndex', this.tabIndex_);
-        }
-        this.on(['tap', 'click'], this.handleClick_);
-        this.on('keydown', this.handleKeyDown_);
-      }
-    }
-
-    /**
-     * Disable this `ClickableComponent`
-     */
-    disable() {
-      this.enabled_ = false;
-      this.addClass('vjs-disabled');
-      this.el_.setAttribute('aria-disabled', 'true');
-      if (typeof this.tabIndex_ !== 'undefined') {
-        this.el_.removeAttribute('tabIndex');
-      }
-      this.off('mouseover', this.handleMouseOver_);
-      this.off('mouseout', this.handleMouseOut_);
-      this.off(['tap', 'click'], this.handleClick_);
-      this.off('keydown', this.handleKeyDown_);
-    }
-
-    /**
-     * Handles language change in ClickableComponent for the player in components
-     *
-     *
-     */
-    handleLanguagechange() {
-      this.controlText(this.controlText_);
-    }
-
-    /**
-     * Event handler that is called when a `ClickableComponent` receives a
-     * `click` or `tap` event.
-     *
-     * @param {Event} event
-     *        The `tap` or `click` event that caused this function to be called.
-     *
-     * @listens tap
-     * @listens click
-     * @abstract
-     */
-    handleClick(event) {
-      if (this.options_.clickHandler) {
-        this.options_.clickHandler.call(this, arguments);
-      }
-    }
-
-    /**
-     * Event handler that is called when a `ClickableComponent` receives a
-     * `keydown` event.
-     *
-     * By default, if the key is Space or Enter, it will trigger a `click` event.
-     *
-     * @param {KeyboardEvent} event
-     *        The `keydown` event that caused this function to be called.
-     *
-     * @listens keydown
-     */
-    handleKeyDown(event) {
-      // Support Space or Enter key operation to fire a click event. Also,
-      // prevent the event from propagating through the DOM and triggering
-      // Player hotkeys.
-      if (keycode.isEventKey(event, 'Space') || keycode.isEventKey(event, 'Enter')) {
-        event.preventDefault();
-        event.stopPropagation();
-        this.trigger('click');
-      } else {
-        // Pass keypress handling up for unsupported keys
-        super.handleKeyDown(event);
-      }
-    }
-  }
-  Component$1.registerComponent('ClickableComponent', ClickableComponent);
-
-  /**
-   * @file poster-image.js
-   */
-
-  /**
-   * A `ClickableComponent` that handles showing the poster image for the player.
-   *
-   * @extends ClickableComponent
-   */
-  class PosterImage extends ClickableComponent {
-    /**
-     * Create an instance of this class.
-     *
-     * @param { import('./player').default } player
-     *        The `Player` that this class should attach to.
-     *
-     * @param {Object} [options]
-     *        The key/value store of player options.
-     */
-    constructor(player, options) {
-      super(player, options);
-      this.update();
-      this.update_ = e => this.update(e);
-      player.on('posterchange', this.update_);
-    }
-
-    /**
-     * Clean up and dispose of the `PosterImage`.
-     */
-    dispose() {
-      this.player().off('posterchange', this.update_);
-      super.dispose();
-    }
-
-    /**
-     * Create the `PosterImage`s DOM element.
-     *
-     * @return {Element}
-     *         The element that gets created.
-     */
-    createEl() {
-      // The el is an empty div to keep position in the DOM
-      // A picture and img el will be inserted when a source is set
-      return createEl('div', {
-        className: 'vjs-poster'
-      });
-    }
-
-    /**
-     * Get or set the `PosterImage`'s crossOrigin option.
-     *
-     * @param {string|null} [value]
-     *        The value to set the crossOrigin to. If an argument is
-     *        given, must be one of `'anonymous'` or `'use-credentials'`, or 'null'.
-     *
-     * @return {string|null}
-     *         - The current crossOrigin value of the `Player` when getting.
-     *         - undefined when setting
-     */
-    crossOrigin(value) {
-      // `null` can be set to unset a value
-      if (typeof value === 'undefined') {
-        if (this.$('img')) {
-          // If the poster's element exists, give its value
-          return this.$('img').crossOrigin;
-        } else if (this.player_.tech_ && this.player_.tech_.isReady_) {
-          // If not but the tech is ready, query the tech
-          return this.player_.crossOrigin();
-        }
-        // Otherwise check options as the  poster is usually set before the state of crossorigin
-        // can be retrieved by the getter
-        return this.player_.options_.crossOrigin || this.player_.options_.crossorigin || null;
-      }
-      if (value !== null && value !== 'anonymous' && value !== 'use-credentials') {
-        this.player_.log.warn(`crossOrigin must be null,  "anonymous" or "use-credentials", given "${value}"`);
-        return;
-      }
-      if (this.$('img')) {
-        this.$('img').crossOrigin = value;
-      }
-      return;
-    }
-
-    /**
-     * An {@link EventTarget~EventListener} for {@link Player#posterchange} events.
-     *
-     * @listens Player#posterchange
-     *
-     * @param {Event} [event]
-     *        The `Player#posterchange` event that triggered this function.
-     */
-    update(event) {
-      const url = this.player().poster();
-      this.setSrc(url);
-
-      // If there's no poster source we should display:none on this component
-      // so it's not still clickable or right-clickable
-      if (url) {
-        this.show();
-      } else {
-        this.hide();
-      }
-    }
-
-    /**
-     * Set the source of the `PosterImage` depending on the display method. (Re)creates
-     * the inner picture and img elementss when needed.
-     *
-     * @param {string} [url]
-     *        The URL to the source for the `PosterImage`. If not specified or falsy,
-     *        any source and ant inner picture/img are removed.
-     */
-    setSrc(url) {
-      if (!url) {
-        this.el_.textContent = '';
-        return;
-      }
-      if (!this.$('img')) {
-        this.el_.appendChild(createEl('picture', {
-          className: 'vjs-poster',
-          // Don't want poster to be tabbable.
-          tabIndex: -1
-        }, {}, createEl('img', {
-          loading: 'lazy',
-          crossOrigin: this.crossOrigin()
-        }, {
-          alt: ''
-        })));
-      }
-      this.$('img').src = url;
-    }
-
-    /**
-     * An {@link EventTarget~EventListener} for clicks on the `PosterImage`. See
-     * {@link ClickableComponent#handleClick} for instances where this will be triggered.
-     *
-     * @listens tap
-     * @listens click
-     * @listens keydown
-     *
-     * @param {Event} event
-     +        The `click`, `tap` or `keydown` event that caused this function to be called.
-     */
-    handleClick(event) {
-      // We don't want a click to trigger playback when controls are disabled
-      if (!this.player_.controls()) {
-        return;
-      }
-      if (this.player_.tech(true)) {
-        this.player_.tech(true).focus();
-      }
-      if (this.player_.paused()) {
-        silencePromise(this.player_.play());
-      } else {
-        this.player_.pause();
-      }
-    }
-  }
-
-  /**
-   * Get or set the `PosterImage`'s crossorigin option. For the HTML5 player, this
-   * sets the `crossOrigin` property on the `<img>` tag to control the CORS
-   * behavior.
-   *
-   * @param {string|null} [value]
-   *        The value to set the `PosterImages`'s crossorigin to. If an argument is
-   *        given, must be one of `anonymous` or `use-credentials`.
-   *
-   * @return {string|null|undefined}
-   *         - The current crossorigin value of the `Player` when getting.
-   *         - undefined when setting
-   */
-  PosterImage.prototype.crossorigin = PosterImage.prototype.crossOrigin;
-  Component$1.registerComponent('PosterImage', PosterImage);
-
-  /**
-   * @file text-track-display.js
-   */
-  const darkGray = '#222';
-  const lightGray = '#ccc';
-  const fontMap = {
-    monospace: 'monospace',
-    sansSerif: 'sans-serif',
-    serif: 'serif',
-    monospaceSansSerif: '"Andale Mono", "Lucida Console", monospace',
-    monospaceSerif: '"Courier New", monospace',
-    proportionalSansSerif: 'sans-serif',
-    proportionalSerif: 'serif',
-    casual: '"Comic Sans MS", Impact, fantasy',
-    script: '"Monotype Corsiva", cursive',
-    smallcaps: '"Andale Mono", "Lucida Console", monospace, sans-serif'
-  };
-
-  /**
-   * Construct an rgba color from a given hex color code.
-   *
-   * @param {number} color
-   *        Hex number for color, like #f0e or #f604e2.
-   *
-   * @param {number} opacity
-   *        Value for opacity, 0.0 - 1.0.
-   *
-   * @return {string}
-   *         The rgba color that was created, like 'rgba(255, 0, 0, 0.3)'.
-   */
-  function constructColor(color, opacity) {
-    let hex;
-    if (color.length === 4) {
-      // color looks like "#f0e"
-      hex = color[1] + color[1] + color[2] + color[2] + color[3] + color[3];
-    } else if (color.length === 7) {
-      // color looks like "#f604e2"
-      hex = color.slice(1);
-    } else {
-      throw new Error('Invalid color code provided, ' + color + '; must be formatted as e.g. #f0e or #f604e2.');
-    }
-    return 'rgba(' + parseInt(hex.slice(0, 2), 16) + ',' + parseInt(hex.slice(2, 4), 16) + ',' + parseInt(hex.slice(4, 6), 16) + ',' + opacity + ')';
-  }
-
-  /**
-   * Try to update the style of a DOM element. Some style changes will throw an error,
-   * particularly in IE8. Those should be noops.
-   *
-   * @param {Element} el
-   *        The DOM element to be styled.
-   *
-   * @param {string} style
-   *        The CSS property on the element that should be styled.
-   *
-   * @param {string} rule
-   *        The style rule that should be applied to the property.
-   *
-   * @private
-   */
-  function tryUpdateStyle(el, style, rule) {
-    try {
-      el.style[style] = rule;
-    } catch (e) {
-      // Satisfies linter.
-      return;
-    }
-  }
-
-  /**
-   * Converts the CSS top/right/bottom/left property numeric value to string in pixels.
-   *
-   * @param {number} position
-   *        The CSS top/right/bottom/left property value.
-   *
-   * @return {string}
-   *          The CSS property value that was created, like '10px'.
-   *
-   * @private
-   */
-  function getCSSPositionValue(position) {
-    return position ? `${position}px` : '';
-  }
-
-  /**
-   * The component for displaying text track cues.
-   *
-   * @extends Component
-   */
-  class TextTrackDisplay extends Component$1 {
-    /**
-     * Creates an instance of this class.
-     *
-     * @param { import('../player').default } player
-     *        The `Player` that this class should be attached to.
-     *
-     * @param {Object} [options]
-     *        The key/value store of player options.
-     *
-     * @param {Function} [ready]
-     *        The function to call when `TextTrackDisplay` is ready.
-     */
-    constructor(player, options, ready) {
-      super(player, options, ready);
-      const updateDisplayTextHandler = e => this.updateDisplay(e);
-      const updateDisplayHandler = e => {
-        this.updateDisplayOverlay();
-        this.updateDisplay(e);
-      };
-      player.on('loadstart', e => this.toggleDisplay(e));
-      player.on('texttrackchange', updateDisplayTextHandler);
-      player.on('loadedmetadata', e => {
-        this.updateDisplayOverlay();
-        this.preselectTrack(e);
-      });
-
-      // This used to be called during player init, but was causing an error
-      // if a track should show by default and the display hadn't loaded yet.
-      // Should probably be moved to an external track loader when we support
-      // tracks that don't need a display.
-      player.ready(bind_(this, function () {
-        if (player.tech_ && player.tech_.featuresNativeTextTracks) {
-          this.hide();
-          return;
-        }
-        player.on('fullscreenchange', updateDisplayHandler);
-        player.on('playerresize', updateDisplayHandler);
-        const screenOrientation = window.screen.orientation || window;
-        const changeOrientationEvent = window.screen.orientation ? 'change' : 'orientationchange';
-        screenOrientation.addEventListener(changeOrientationEvent, updateDisplayHandler);
-        player.on('dispose', () => screenOrientation.removeEventListener(changeOrientationEvent, updateDisplayHandler));
-        const tracks = this.options_.playerOptions.tracks || [];
-        for (let i = 0; i < tracks.length; i++) {
-          this.player_.addRemoteTextTrack(tracks[i], true);
-        }
-        this.preselectTrack();
-      }));
-    }
-
-    /**
-    * Preselect a track following this precedence:
-    * - matches the previously selected {@link TextTrack}'s language and kind
-    * - matches the previously selected {@link TextTrack}'s language only
-    * - is the first default captions track
-    * - is the first default descriptions track
-    *
-    * @listens Player#loadstart
-    */
-    preselectTrack() {
-      const modes = {
-        captions: 1,
-        subtitles: 1
-      };
-      const trackList = this.player_.textTracks();
-      const userPref = this.player_.cache_.selectedLanguage;
-      let firstDesc;
-      let firstCaptions;
-      let preferredTrack;
-      for (let i = 0; i < trackList.length; i++) {
-        const track = trackList[i];
-        if (userPref && userPref.enabled && userPref.language && userPref.language === track.language && track.kind in modes) {
-          // Always choose the track that matches both language and kind
-          if (track.kind === userPref.kind) {
-            preferredTrack = track;
-            // or choose the first track that matches language
-          } else if (!preferredTrack) {
-            preferredTrack = track;
-          }
-
-          // clear everything if offTextTrackMenuItem was clicked
-        } else if (userPref && !userPref.enabled) {
-          preferredTrack = null;
-          firstDesc = null;
-          firstCaptions = null;
-        } else if (track.default) {
-          if (track.kind === 'descriptions' && !firstDesc) {
-            firstDesc = track;
-          } else if (track.kind in modes && !firstCaptions) {
-            firstCaptions = track;
-          }
-        }
-      }
-
-      // The preferredTrack matches the user preference and takes
-      // precedence over all the other tracks.
-      // So, display the preferredTrack before the first default track
-      // and the subtitles/captions track before the descriptions track
-      if (preferredTrack) {
-        preferredTrack.mode = 'showing';
-      } else if (firstCaptions) {
-        firstCaptions.mode = 'showing';
-      } else if (firstDesc) {
-        firstDesc.mode = 'showing';
-      }
-    }
-
-    /**
-     * Turn display of {@link TextTrack}'s from the current state into the other state.
-     * There are only two states:
-     * - 'shown'
-     * - 'hidden'
-     *
-     * @listens Player#loadstart
-     */
-    toggleDisplay() {
-      if (this.player_.tech_ && this.player_.tech_.featuresNativeTextTracks) {
-        this.hide();
-      } else {
-        this.show();
-      }
-    }
-
-    /**
-     * Create the {@link Component}'s DOM element.
-     *
-     * @return {Element}
-     *         The element that was created.
-     */
-    createEl() {
-      return super.createEl('div', {
-        className: 'vjs-text-track-display'
-      }, {
-        'translate': 'yes',
-        'aria-live': 'off',
-        'aria-atomic': 'true'
-      });
-    }
-
-    /**
-     * Clear all displayed {@link TextTrack}s.
-     */
-    clearDisplay() {
-      if (typeof window.WebVTT === 'function') {
-        window.WebVTT.processCues(window, [], this.el_);
-      }
-    }
-
-    /**
-     * Update the displayed TextTrack when a either a {@link Player#texttrackchange} or
-     * a {@link Player#fullscreenchange} is fired.
-     *
-     * @listens Player#texttrackchange
-     * @listens Player#fullscreenchange
-     */
-    updateDisplay() {
-      const tracks = this.player_.textTracks();
-      const allowMultipleShowingTracks = this.options_.allowMultipleShowingTracks;
-      this.clearDisplay();
-      if (allowMultipleShowingTracks) {
-        const showingTracks = [];
-        for (let i = 0; i < tracks.length; ++i) {
-          const track = tracks[i];
-          if (track.mode !== 'showing') {
-            continue;
-          }
-          showingTracks.push(track);
-        }
-        this.updateForTrack(showingTracks);
-        return;
-      }
-
-      //  Track display prioritization model: if multiple tracks are 'showing',
-      //  display the first 'subtitles' or 'captions' track which is 'showing',
-      //  otherwise display the first 'descriptions' track which is 'showing'
-
-      let descriptionsTrack = null;
-      let captionsSubtitlesTrack = null;
-      let i = tracks.length;
-      while (i--) {
-        const track = tracks[i];
-        if (track.mode === 'showing') {
-          if (track.kind === 'descriptions') {
-            descriptionsTrack = track;
-          } else {
-            captionsSubtitlesTrack = track;
-          }
-        }
-      }
-      if (captionsSubtitlesTrack) {
-        if (this.getAttribute('aria-live') !== 'off') {
-          this.setAttribute('aria-live', 'off');
-        }
-        this.updateForTrack(captionsSubtitlesTrack);
-      } else if (descriptionsTrack) {
-        if (this.getAttribute('aria-live') !== 'assertive') {
-          this.setAttribute('aria-live', 'assertive');
-        }
-        this.updateForTrack(descriptionsTrack);
-      }
-    }
-
-    /**
-     * Updates the displayed TextTrack to be sure it overlays the video when a either
-     * a {@link Player#texttrackchange} or a {@link Player#fullscreenchange} is fired.
-     */
-    updateDisplayOverlay() {
-      // inset-inline and inset-block are not supprted on old chrome, but these are
-      // only likely to be used on TV devices
-      if (!this.player_.videoHeight() || !window.CSS.supports('inset-inline: 10px')) {
-        return;
-      }
-      const playerWidth = this.player_.currentWidth();
-      const playerHeight = this.player_.currentHeight();
-      const playerAspectRatio = playerWidth / playerHeight;
-      const videoAspectRatio = this.player_.videoWidth() / this.player_.videoHeight();
-      let insetInlineMatch = 0;
-      let insetBlockMatch = 0;
-      if (Math.abs(playerAspectRatio - videoAspectRatio) > 0.1) {
-        if (playerAspectRatio > videoAspectRatio) {
-          insetInlineMatch = Math.round((playerWidth - playerHeight * videoAspectRatio) / 2);
-        } else {
-          insetBlockMatch = Math.round((playerHeight - playerWidth / videoAspectRatio) / 2);
-        }
-      }
-      tryUpdateStyle(this.el_, 'insetInline', getCSSPositionValue(insetInlineMatch));
-      tryUpdateStyle(this.el_, 'insetBlock', getCSSPositionValue(insetBlockMatch));
-    }
-
-    /**
-     * Style {@Link TextTrack} activeCues according to {@Link TextTrackSettings}.
-     *
-     * @param {TextTrack} track
-     *        Text track object containing active cues to style.
-     */
-    updateDisplayState(track) {
-      const overrides = this.player_.textTrackSettings.getValues();
-      const cues = track.activeCues;
-      let i = cues.length;
-      while (i--) {
-        const cue = cues[i];
-        if (!cue) {
-          continue;
-        }
-        const cueDiv = cue.displayState;
-        if (overrides.color) {
-          cueDiv.firstChild.style.color = overrides.color;
-        }
-        if (overrides.textOpacity) {
-          tryUpdateStyle(cueDiv.firstChild, 'color', constructColor(overrides.color || '#fff', overrides.textOpacity));
-        }
-        if (overrides.backgroundColor) {
-          cueDiv.firstChild.style.backgroundColor = overrides.backgroundColor;
-        }
-        if (overrides.backgroundOpacity) {
-          tryUpdateStyle(cueDiv.firstChild, 'backgroundColor', constructColor(overrides.backgroundColor || '#000', overrides.backgroundOpacity));
-        }
-        if (overrides.windowColor) {
-          if (overrides.windowOpacity) {
-            tryUpdateStyle(cueDiv, 'backgroundColor', constructColor(overrides.windowColor, overrides.windowOpacity));
-          } else {
-            cueDiv.style.backgroundColor = overrides.windowColor;
-          }
-        }
-        if (overrides.edgeStyle) {
-          if (overrides.edgeStyle === 'dropshadow') {
-            cueDiv.firstChild.style.textShadow = `2px 2px 3px ${darkGray}, 2px 2px 4px ${darkGray}, 2px 2px 5px ${darkGray}`;
-          } else if (overrides.edgeStyle === 'raised') {
-            cueDiv.firstChild.style.textShadow = `1px 1px ${darkGray}, 2px 2px ${darkGray}, 3px 3px ${darkGray}`;
-          } else if (overrides.edgeStyle === 'depressed') {
-            cueDiv.firstChild.style.textShadow = `1px 1px ${lightGray}, 0 1px ${lightGray}, -1px -1px ${darkGray}, 0 -1px ${darkGray}`;
-          } else if (overrides.edgeStyle === 'uniform') {
-            cueDiv.firstChild.style.textShadow = `0 0 4px ${darkGray}, 0 0 4px ${darkGray}, 0 0 4px ${darkGray}, 0 0 4px ${darkGray}`;
-          }
-        }
-        if (overrides.fontPercent && overrides.fontPercent !== 1) {
-          const fontSize = window.parseFloat(cueDiv.style.fontSize);
-          cueDiv.style.fontSize = fontSize * overrides.fontPercent + 'px';
-          cueDiv.style.height = 'auto';
-          cueDiv.style.top = 'auto';
-        }
-        if (overrides.fontFamily && overrides.fontFamily !== 'default') {
-          if (overrides.fontFamily === 'small-caps') {
-            cueDiv.firstChild.style.fontVariant = 'small-caps';
-          } else {
-            cueDiv.firstChild.style.fontFamily = fontMap[overrides.fontFamily];
-          }
-        }
-      }
-    }
-
-    /**
-     * Add an {@link TextTrack} to to the {@link Tech}s {@link TextTrackList}.
-     *
-     * @param {TextTrack|TextTrack[]} tracks
-     *        Text track object or text track array to be added to the list.
-     */
-    updateForTrack(tracks) {
-      if (!Array.isArray(tracks)) {
-        tracks = [tracks];
-      }
-      if (typeof window.WebVTT !== 'function' || tracks.every(track => {
-        return !track.activeCues;
-      })) {
-        return;
-      }
-      const cues = [];
-
-      // push all active track cues
-      for (let i = 0; i < tracks.length; ++i) {
-        const track = tracks[i];
-        for (let j = 0; j < track.activeCues.length; ++j) {
-          cues.push(track.activeCues[j]);
-        }
-      }
-
-      // removes all cues before it processes new ones
-      window.WebVTT.processCues(window, cues, this.el_);
-
-      // add unique class to each language text track & add settings styling if necessary
-      for (let i = 0; i < tracks.length; ++i) {
-        const track = tracks[i];
-        for (let j = 0; j < track.activeCues.length; ++j) {
-          const cueEl = track.activeCues[j].displayState;
-          addClass(cueEl, 'vjs-text-track-cue', 'vjs-text-track-cue-' + (track.language ? track.language : i));
-          if (track.language) {
-            setAttribute(cueEl, 'lang', track.language);
-          }
-        }
-        if (this.player_.textTrackSettings) {
-          this.updateDisplayState(track);
-        }
-      }
-    }
-  }
-  Component$1.registerComponent('TextTrackDisplay', TextTrackDisplay);
-
-  /**
-   * @file loading-spinner.js
-   */
-
-  /**
-   * A loading spinner for use during waiting/loading events.
-   *
-   * @extends Component
-   */
-  class LoadingSpinner extends Component$1 {
-    /**
-     * Create the `LoadingSpinner`s DOM element.
-     *
-     * @return {Element}
-     *         The dom element that gets created.
-     */
-    createEl() {
-      const isAudio = this.player_.isAudio();
-      const playerType = this.localize(isAudio ? 'Audio Player' : 'Video Player');
-      const controlText = createEl('span', {
-        className: 'vjs-control-text',
-        textContent: this.localize('{1} is loading.', [playerType])
-      });
-      const el = super.createEl('div', {
-        className: 'vjs-loading-spinner',
-        dir: 'ltr'
-      });
-      el.appendChild(controlText);
-      return el;
-    }
-
-    /**
-     * Update control text on languagechange
-     */
-    handleLanguagechange() {
-      this.$('.vjs-control-text').textContent = this.localize('{1} is loading.', [this.player_.isAudio() ? 'Audio Player' : 'Video Player']);
-    }
-  }
-  Component$1.registerComponent('LoadingSpinner', LoadingSpinner);
-
-  /**
-   * @file button.js
-   */
-
-  /**
-   * Base class for all buttons.
-   *
-   * @extends ClickableComponent
-   */
-  class Button extends ClickableComponent {
-    /**
-     * Create the `Button`s DOM element.
-     *
-     * @param {string} [tag="button"]
-     *        The element's node type. This argument is IGNORED: no matter what
-     *        is passed, it will always create a `button` element.
-     *
-     * @param {Object} [props={}]
-     *        An object of properties that should be set on the element.
-     *
-     * @param {Object} [attributes={}]
-     *        An object of attributes that should be set on the element.
-     *
-     * @return {Element}
-     *         The element that gets created.
-     */
-    createEl(tag, props = {}, attributes = {}) {
-      tag = 'button';
-      props = Object.assign({
-        className: this.buildCSSClass()
-      }, props);
-
-      // Add attributes for button element
-      attributes = Object.assign({
-        // Necessary since the default button type is "submit"
-        type: 'button'
-      }, attributes);
-      const el = createEl(tag, props, attributes);
-      if (!this.player_.options_.experimentalSvgIcons) {
-        el.appendChild(createEl('span', {
-          className: 'vjs-icon-placeholder'
-        }, {
-          'aria-hidden': true
-        }));
-      }
-      this.createControlTextEl(el);
-      return el;
-    }
-
-    /**
-     * Add a child `Component` inside of this `Button`.
-     *
-     * @param {string|Component} child
-     *        The name or instance of a child to add.
-     *
-     * @param {Object} [options={}]
-     *        The key/value store of options that will get passed to children of
-     *        the child.
-     *
-     * @return {Component}
-     *         The `Component` that gets added as a child. When using a string the
-     *         `Component` will get created by this process.
-     *
-     * @deprecated since version 5
-     */
-    addChild(child, options = {}) {
-      const className = this.constructor.name;
-      log$1.warn(`Adding an actionable (user controllable) child to a Button (${className}) is not supported; use a ClickableComponent instead.`);
-
-      // Avoid the error message generated by ClickableComponent's addChild method
-      return Component$1.prototype.addChild.call(this, child, options);
-    }
-
-    /**
-     * Enable the `Button` element so that it can be activated or clicked. Use this with
-     * {@link Button#disable}.
-     */
-    enable() {
-      super.enable();
-      this.el_.removeAttribute('disabled');
-    }
-
-    /**
-     * Disable the `Button` element so that it cannot be activated or clicked. Use this with
-     * {@link Button#enable}.
-     */
-    disable() {
-      super.disable();
-      this.el_.setAttribute('disabled', 'disabled');
-    }
-
-    /**
-     * This gets called when a `Button` has focus and `keydown` is triggered via a key
-     * press.
-     *
-     * @param {KeyboardEvent} event
-     *        The event that caused this function to get called.
-     *
-     * @listens keydown
-     */
-    handleKeyDown(event) {
-      // Ignore Space or Enter key operation, which is handled by the browser for
-      // a button - though not for its super class, ClickableComponent. Also,
-      // prevent the event from propagating through the DOM and triggering Player
-      // hotkeys. We do not preventDefault here because we _want_ the browser to
-      // handle it.
-      if (keycode.isEventKey(event, 'Space') || keycode.isEventKey(event, 'Enter')) {
-        event.stopPropagation();
-        return;
-      }
-
-      // Pass keypress handling up for unsupported keys
-      super.handleKeyDown(event);
-    }
-  }
-  Component$1.registerComponent('Button', Button);
-
-  /**
-   * @file big-play-button.js
-   */
-
-  /**
-   * The initial play button that shows before the video has played. The hiding of the
-   * `BigPlayButton` get done via CSS and `Player` states.
-   *
-   * @extends Button
-   */
-  class BigPlayButton extends Button {
-    constructor(player, options) {
-      super(player, options);
-      this.mouseused_ = false;
-      this.setIcon('play');
-      this.on('mousedown', e => this.handleMouseDown(e));
-    }
-
-    /**
-     * Builds the default DOM `className`.
-     *
-     * @return {string}
-     *         The DOM `className` for this object. Always returns 'vjs-big-play-button'.
-     */
-    buildCSSClass() {
-      return 'vjs-big-play-button';
-    }
-
-    /**
-     * This gets called when a `BigPlayButton` "clicked". See {@link ClickableComponent}
-     * for more detailed information on what a click can be.
-     *
-     * @param {KeyboardEvent|MouseEvent|TouchEvent} event
-     *        The `keydown`, `tap`, or `click` event that caused this function to be
-     *        called.
-     *
-     * @listens tap
-     * @listens click
-     */
-    handleClick(event) {
-      const playPromise = this.player_.play();
-
-      // exit early if clicked via the mouse
-      if (this.mouseused_ && 'clientX' in event && 'clientY' in event) {
-        silencePromise(playPromise);
-        if (this.player_.tech(true)) {
-          this.player_.tech(true).focus();
-        }
-        return;
-      }
-      const cb = this.player_.getChild('controlBar');
-      const playToggle = cb && cb.getChild('playToggle');
-      if (!playToggle) {
-        this.player_.tech(true).focus();
-        return;
-      }
-      const playFocus = () => playToggle.focus();
-      if (isPromise(playPromise)) {
-        playPromise.then(playFocus, () => {});
-      } else {
-        this.setTimeout(playFocus, 1);
-      }
-    }
-
-    /**
-     * Event handler that is called when a `BigPlayButton` receives a
-     * `keydown` event.
-     *
-     * @param {KeyboardEvent} event
-     *        The `keydown` event that caused this function to be called.
-     *
-     * @listens keydown
-     */
-    handleKeyDown(event) {
-      this.mouseused_ = false;
-      super.handleKeyDown(event);
-    }
-
-    /**
-     * Handle `mousedown` events on the `BigPlayButton`.
-     *
-     * @param {MouseEvent} event
-     *        `mousedown` or `touchstart` event that triggered this function
-     *
-     * @listens mousedown
-     */
-    handleMouseDown(event) {
-      this.mouseused_ = true;
-    }
-  }
-
-  /**
-   * The text that should display over the `BigPlayButton`s controls. Added to for localization.
-   *
-   * @type {string}
-   * @protected
-   */
-  BigPlayButton.prototype.controlText_ = 'Play Video';
-  Component$1.registerComponent('BigPlayButton', BigPlayButton);
-
-  /**
-   * @file close-button.js
-   */
-
-  /**
-   * The `CloseButton` is a `{@link Button}` that fires a `close` event when
-   * it gets clicked.
-   *
-   * @extends Button
-   */
-  class CloseButton extends Button {
-    /**
-    * Creates an instance of the this class.
-    *
-    * @param  { import('./player').default } player
-    *         The `Player` that this class should be attached to.
-    *
-    * @param  {Object} [options]
-    *         The key/value store of player options.
-    */
-    constructor(player, options) {
-      super(player, options);
-      this.setIcon('cancel');
-      this.controlText(options && options.controlText || this.localize('Close'));
-    }
-
-    /**
-    * Builds the default DOM `className`.
-    *
-    * @return {string}
-    *         The DOM `className` for this object.
-    */
-    buildCSSClass() {
-      return `vjs-close-button ${super.buildCSSClass()}`;
-    }
-
-    /**
-     * This gets called when a `CloseButton` gets clicked. See
-     * {@link ClickableComponent#handleClick} for more information on when
-     * this will be triggered
-     *
-     * @param {Event} event
-     *        The `keydown`, `tap`, or `click` event that caused this function to be
-     *        called.
-     *
-     * @listens tap
-     * @listens click
-     * @fires CloseButton#close
-     */
-    handleClick(event) {
-      /**
-       * Triggered when the a `CloseButton` is clicked.
-       *
-       * @event CloseButton#close
-       * @type {Event}
-       *
-       * @property {boolean} [bubbles=false]
-       *           set to false so that the close event does not
-       *           bubble up to parents if there is no listener
-       */
-      this.trigger({
-        type: 'close',
-        bubbles: false
-      });
-    }
-    /**
-     * Event handler that is called when a `CloseButton` receives a
-     * `keydown` event.
-     *
-     * By default, if the key is Esc, it will trigger a `click` event.
-     *
-     * @param {KeyboardEvent} event
-     *        The `keydown` event that caused this function to be called.
-     *
-     * @listens keydown
-     */
-    handleKeyDown(event) {
-      // Esc button will trigger `click` event
-      if (keycode.isEventKey(event, 'Esc')) {
-        event.preventDefault();
-        event.stopPropagation();
-        this.trigger('click');
-      } else {
-        // Pass keypress handling up for unsupported keys
-        super.handleKeyDown(event);
-      }
-    }
-  }
-  Component$1.registerComponent('CloseButton', CloseButton);
-
-  /**
-   * @file play-toggle.js
-   */
-
-  /**
-   * Button to toggle between play and pause.
-   *
-   * @extends Button
-   */
-  class PlayToggle extends Button {
-    /**
-     * Creates an instance of this class.
-     *
-     * @param { import('./player').default } player
-     *        The `Player` that this class should be attached to.
-     *
-     * @param {Object} [options={}]
-     *        The key/value store of player options.
-     */
-    constructor(player, options = {}) {
-      super(player, options);
-
-      // show or hide replay icon
-      options.replay = options.replay === undefined || options.replay;
-      this.setIcon('play');
-      this.on(player, 'play', e => this.handlePlay(e));
-      this.on(player, 'pause', e => this.handlePause(e));
-      if (options.replay) {
-        this.on(player, 'ended', e => this.handleEnded(e));
-      }
-    }
-
-    /**
-     * Builds the default DOM `className`.
-     *
-     * @return {string}
-     *         The DOM `className` for this object.
-     */
-    buildCSSClass() {
-      return `vjs-play-control ${super.buildCSSClass()}`;
-    }
-
-    /**
-     * This gets called when an `PlayToggle` is "clicked". See
-     * {@link ClickableComponent} for more detailed information on what a click can be.
-     *
-     * @param {Event} [event]
-     *        The `keydown`, `tap`, or `click` event that caused this function to be
-     *        called.
-     *
-     * @listens tap
-     * @listens click
-     */
-    handleClick(event) {
-      if (this.player_.paused()) {
-        silencePromise(this.player_.play());
-      } else {
-        this.player_.pause();
-      }
-    }
-
-    /**
-     * This gets called once after the video has ended and the user seeks so that
-     * we can change the replay button back to a play button.
-     *
-     * @param {Event} [event]
-     *        The event that caused this function to run.
-     *
-     * @listens Player#seeked
-     */
-    handleSeeked(event) {
-      this.removeClass('vjs-ended');
-      if (this.player_.paused()) {
-        this.handlePause(event);
-      } else {
-        this.handlePlay(event);
-      }
-    }
-
-    /**
-     * Add the vjs-playing class to the element so it can change appearance.
-     *
-     * @param {Event} [event]
-     *        The event that caused this function to run.
-     *
-     * @listens Player#play
-     */
-    handlePlay(event) {
-      this.removeClass('vjs-ended', 'vjs-paused');
-      this.addClass('vjs-playing');
-      // change the button text to "Pause"
-      this.setIcon('pause');
-      this.controlText('Pause');
-    }
-
-    /**
-     * Add the vjs-paused class to the element so it can change appearance.
-     *
-     * @param {Event} [event]
-     *        The event that caused this function to run.
-     *
-     * @listens Player#pause
-     */
-    handlePause(event) {
-      this.removeClass('vjs-playing');
-      this.addClass('vjs-paused');
-      // change the button text to "Play"
-      this.setIcon('play');
-      this.controlText('Play');
-    }
-
-    /**
-     * Add the vjs-ended class to the element so it can change appearance
-     *
-     * @param {Event} [event]
-     *        The event that caused this function to run.
-     *
-     * @listens Player#ended
-     */
-    handleEnded(event) {
-      this.removeClass('vjs-playing');
-      this.addClass('vjs-ended');
-      // change the button text to "Replay"
-      this.setIcon('replay');
-      this.controlText('Replay');
-
-      // on the next seek remove the replay button
-      this.one(this.player_, 'seeked', e => this.handleSeeked(e));
-    }
-  }
-
-  /**
-   * The text that should display over the `PlayToggle`s controls. Added for localization.
-   *
-   * @type {string}
-   * @protected
-   */
-  PlayToggle.prototype.controlText_ = 'Play';
-  Component$1.registerComponent('PlayToggle', PlayToggle);
-
-  /**
-   * @file time-display.js
-   */
-
-  /**
-   * Displays time information about the video
-   *
-   * @extends Component
-   */
-  class TimeDisplay extends Component$1 {
-    /**
-     * Creates an instance of this class.
-     *
-     * @param { import('../../player').default } player
-     *        The `Player` that this class should be attached to.
-     *
-     * @param {Object} [options]
-     *        The key/value store of player options.
-     */
-    constructor(player, options) {
-      super(player, options);
-      this.on(player, ['timeupdate', 'ended', 'seeking'], e => this.update(e));
-      this.updateTextNode_();
-    }
-
-    /**
-     * Create the `Component`'s DOM element
-     *
-     * @return {Element}
-     *         The element that was created.
-     */
-    createEl() {
-      const className = this.buildCSSClass();
-      const el = super.createEl('div', {
-        className: `${className} vjs-time-control vjs-control`
-      });
-      const span = createEl('span', {
-        className: 'vjs-control-text',
-        textContent: `${this.localize(this.labelText_)}\u00a0`
-      }, {
-        role: 'presentation'
-      });
-      el.appendChild(span);
-      this.contentEl_ = createEl('span', {
-        className: `${className}-display`
-      }, {
-        // span elements have no implicit role, but some screen readers (notably VoiceOver)
-        // treat them as a break between items in the DOM when using arrow keys
-        // (or left-to-right swipes on iOS) to read contents of a page. Using
-        // role='presentation' causes VoiceOver to NOT treat this span as a break.
-        role: 'presentation'
-      });
-      el.appendChild(this.contentEl_);
-      return el;
-    }
-    dispose() {
-      this.contentEl_ = null;
-      this.textNode_ = null;
-      super.dispose();
-    }
-
-    /**
-     * Updates the displayed time according to the `updateContent` function which is defined in the child class.
-     *
-     * @param {Event} [event]
-     *          The `timeupdate`, `ended` or `seeking` (if enableSmoothSeeking is true) event that caused this function to be called.
-     */
-    update(event) {
-      if (!this.player_.options_.enableSmoothSeeking && event.type === 'seeking') {
-        return;
-      }
-      this.updateContent(event);
-    }
-
-    /**
-     * Updates the time display text node with a new time
-     *
-     * @param {number} [time=0] the time to update to
-     *
-     * @private
-     */
-    updateTextNode_(time = 0) {
-      time = formatTime(time);
-      if (this.formattedTime_ === time) {
-        return;
-      }
-      this.formattedTime_ = time;
-      this.requestNamedAnimationFrame('TimeDisplay#updateTextNode_', () => {
-        if (!this.contentEl_) {
-          return;
-        }
-        let oldNode = this.textNode_;
-        if (oldNode && this.contentEl_.firstChild !== oldNode) {
-          oldNode = null;
-          log$1.warn('TimeDisplay#updateTextnode_: Prevented replacement of text node element since it was no longer a child of this node. Appending a new node instead.');
-        }
-        this.textNode_ = document.createTextNode(this.formattedTime_);
-        if (!this.textNode_) {
-          return;
-        }
-        if (oldNode) {
-          this.contentEl_.replaceChild(this.textNode_, oldNode);
-        } else {
-          this.contentEl_.appendChild(this.textNode_);
-        }
-      });
-    }
-
-    /**
-     * To be filled out in the child class, should update the displayed time
-     * in accordance with the fact that the current time has changed.
-     *
-     * @param {Event} [event]
-     *        The `timeupdate`  event that caused this to run.
-     *
-     * @listens Player#timeupdate
-     */
-    updateContent(event) {}
-  }
-
-  /**
-   * The text that is added to the `TimeDisplay` for screen reader users.
-   *
-   * @type {string}
-   * @private
-   */
-  TimeDisplay.prototype.labelText_ = 'Time';
-
-  /**
-   * The text that should display over the `TimeDisplay`s controls. Added to for localization.
-   *
-   * @type {string}
-   * @protected
-   *
-   * @deprecated in v7; controlText_ is not used in non-active display Components
-   */
-  TimeDisplay.prototype.controlText_ = 'Time';
-  Component$1.registerComponent('TimeDisplay', TimeDisplay);
-
-  /**
-   * @file current-time-display.js
-   */
-
-  /**
-   * Displays the current time
-   *
-   * @extends Component
-   */
-  class CurrentTimeDisplay extends TimeDisplay {
-    /**
-     * Builds the default DOM `className`.
-     *
-     * @return {string}
-     *         The DOM `className` for this object.
-     */
-    buildCSSClass() {
-      return 'vjs-current-time';
-    }
-
-    /**
-     * Update current time display
-     *
-     * @param {Event} [event]
-     *        The `timeupdate` event that caused this function to run.
-     *
-     * @listens Player#timeupdate
-     */
-    updateContent(event) {
-      // Allows for smooth scrubbing, when player can't keep up.
-      let time;
-      if (this.player_.ended()) {
-        time = this.player_.duration();
-      } else {
-        time = this.player_.scrubbing() ? this.player_.getCache().currentTime : this.player_.currentTime();
-      }
-      this.updateTextNode_(time);
-    }
-  }
-
-  /**
-   * The text that is added to the `CurrentTimeDisplay` for screen reader users.
-   *
-   * @type {string}
-   * @private
-   */
-  CurrentTimeDisplay.prototype.labelText_ = 'Current Time';
-
-  /**
-   * The text that should display over the `CurrentTimeDisplay`s controls. Added to for localization.
-   *
-   * @type {string}
-   * @protected
-   *
-   * @deprecated in v7; controlText_ is not used in non-active display Components
-   */
-  CurrentTimeDisplay.prototype.controlText_ = 'Current Time';
-  Component$1.registerComponent('CurrentTimeDisplay', CurrentTimeDisplay);
-
-  /**
-   * @file duration-display.js
-   */
-
-  /**
-   * Displays the duration
-   *
-   * @extends Component
-   */
-  class DurationDisplay extends TimeDisplay {
-    /**
-     * Creates an instance of this class.
-     *
-     * @param { import('../../player').default } player
-     *        The `Player` that this class should be attached to.
-     *
-     * @param {Object} [options]
-     *        The key/value store of player options.
-     */
-    constructor(player, options) {
-      super(player, options);
-      const updateContent = e => this.updateContent(e);
-
-      // we do not want to/need to throttle duration changes,
-      // as they should always display the changed duration as
-      // it has changed
-      this.on(player, 'durationchange', updateContent);
-
-      // Listen to loadstart because the player duration is reset when a new media element is loaded,
-      // but the durationchange on the user agent will not fire.
-      // @see [Spec]{@link https://www.w3.org/TR/2011/WD-html5-20110113/video.html#media-element-load-algorithm}
-      this.on(player, 'loadstart', updateContent);
-
-      // Also listen for timeupdate (in the parent) and loadedmetadata because removing those
-      // listeners could have broken dependent applications/libraries. These
-      // can likely be removed for 7.0.
-      this.on(player, 'loadedmetadata', updateContent);
-    }
-
-    /**
-     * Builds the default DOM `className`.
-     *
-     * @return {string}
-     *         The DOM `className` for this object.
-     */
-    buildCSSClass() {
-      return 'vjs-duration';
-    }
-
-    /**
-     * Update duration time display.
-     *
-     * @param {Event} [event]
-     *        The `durationchange`, `timeupdate`, or `loadedmetadata` event that caused
-     *        this function to be called.
-     *
-     * @listens Player#durationchange
-     * @listens Player#timeupdate
-     * @listens Player#loadedmetadata
-     */
-    updateContent(event) {
-      const duration = this.player_.duration();
-      this.updateTextNode_(duration);
-    }
-  }
-
-  /**
-   * The text that is added to the `DurationDisplay` for screen reader users.
-   *
-   * @type {string}
-   * @private
-   */
-  DurationDisplay.prototype.labelText_ = 'Duration';
-
-  /**
-   * The text that should display over the `DurationDisplay`s controls. Added to for localization.
-   *
-   * @type {string}
-   * @protected
-   *
-   * @deprecated in v7; controlText_ is not used in non-active display Components
-   */
-  DurationDisplay.prototype.controlText_ = 'Duration';
-  Component$1.registerComponent('DurationDisplay', DurationDisplay);
-
-  /**
-   * @file time-divider.js
-   */
-
-  /**
-   * The separator between the current time and duration.
-   * Can be hidden if it's not needed in the design.
-   *
-   * @extends Component
-   */
-  class TimeDivider extends Component$1 {
-    /**
-     * Create the component's DOM element
-     *
-     * @return {Element}
-     *         The element that was created.
-     */
-    createEl() {
-      const el = super.createEl('div', {
-        className: 'vjs-time-control vjs-time-divider'
-      }, {
-        // this element and its contents can be hidden from assistive techs since
-        // it is made extraneous by the announcement of the control text
-        // for the current time and duration displays
-        'aria-hidden': true
-      });
-      const div = super.createEl('div');
-      const span = super.createEl('span', {
-        textContent: '/'
-      });
-      div.appendChild(span);
-      el.appendChild(div);
-      return el;
-    }
-  }
-  Component$1.registerComponent('TimeDivider', TimeDivider);
-
-  /**
-   * @file remaining-time-display.js
-   */
-
-  /**
-   * Displays the time left in the video
-   *
-   * @extends Component
-   */
-  class RemainingTimeDisplay extends TimeDisplay {
-    /**
-     * Creates an instance of this class.
-     *
-     * @param { import('../../player').default } player
-     *        The `Player` that this class should be attached to.
-     *
-     * @param {Object} [options]
-     *        The key/value store of player options.
-     */
-    constructor(player, options) {
-      super(player, options);
-      this.on(player, 'durationchange', e => this.updateContent(e));
-    }
-
-    /**
-     * Builds the default DOM `className`.
-     *
-     * @return {string}
-     *         The DOM `className` for this object.
-     */
-    buildCSSClass() {
-      return 'vjs-remaining-time';
-    }
-
-    /**
-     * Create the `Component`'s DOM element with the "minus" character prepend to the time
-     *
-     * @return {Element}
-     *         The element that was created.
-     */
-    createEl() {
-      const el = super.createEl();
-      if (this.options_.displayNegative !== false) {
-        el.insertBefore(createEl('span', {}, {
-          'aria-hidden': true
-        }, '-'), this.contentEl_);
-      }
-      return el;
-    }
-
-    /**
-     * Update remaining time display.
-     *
-     * @param {Event} [event]
-     *        The `timeupdate` or `durationchange` event that caused this to run.
-     *
-     * @listens Player#timeupdate
-     * @listens Player#durationchange
-     */
-    updateContent(event) {
-      if (typeof this.player_.duration() !== 'number') {
-        return;
-      }
-      let time;
-
-      // @deprecated We should only use remainingTimeDisplay
-      // as of video.js 7
-      if (this.player_.ended()) {
-        time = 0;
-      } else if (this.player_.remainingTimeDisplay) {
-        time = this.player_.remainingTimeDisplay();
-      } else {
-        time = this.player_.remainingTime();
-      }
-      this.updateTextNode_(time);
-    }
-  }
-
-  /**
-   * The text that is added to the `RemainingTimeDisplay` for screen reader users.
-   *
-   * @type {string}
-   * @private
-   */
-  RemainingTimeDisplay.prototype.labelText_ = 'Remaining Time';
-
-  /**
-   * The text that should display over the `RemainingTimeDisplay`s controls. Added to for localization.
-   *
-   * @type {string}
-   * @protected
-   *
-   * @deprecated in v7; controlText_ is not used in non-active display Components
-   */
-  RemainingTimeDisplay.prototype.controlText_ = 'Remaining Time';
-  Component$1.registerComponent('RemainingTimeDisplay', RemainingTimeDisplay);
-
-  /**
-   * @file live-display.js
-   */
-
-  // TODO - Future make it click to snap to live
-
-  /**
-   * Displays the live indicator when duration is Infinity.
-   *
-   * @extends Component
-   */
-  class LiveDisplay extends Component$1 {
-    /**
-     * Creates an instance of this class.
-     *
-     * @param { import('./player').default } player
-     *        The `Player` that this class should be attached to.
-     *
-     * @param {Object} [options]
-     *        The key/value store of player options.
-     */
-    constructor(player, options) {
-      super(player, options);
-      this.updateShowing();
-      this.on(this.player(), 'durationchange', e => this.updateShowing(e));
-    }
-
-    /**
-     * Create the `Component`'s DOM element
-     *
-     * @return {Element}
-     *         The element that was created.
-     */
-    createEl() {
-      const el = super.createEl('div', {
-        className: 'vjs-live-control vjs-control'
-      });
-      this.contentEl_ = createEl('div', {
-        className: 'vjs-live-display'
-      }, {
-        'aria-live': 'off'
-      });
-      this.contentEl_.appendChild(createEl('span', {
-        className: 'vjs-control-text',
-        textContent: `${this.localize('Stream Type')}\u00a0`
-      }));
-      this.contentEl_.appendChild(document.createTextNode(this.localize('LIVE')));
-      el.appendChild(this.contentEl_);
-      return el;
-    }
-    dispose() {
-      this.contentEl_ = null;
-      super.dispose();
-    }
-
-    /**
-     * Check the duration to see if the LiveDisplay should be showing or not. Then show/hide
-     * it accordingly
-     *
-     * @param {Event} [event]
-     *        The {@link Player#durationchange} event that caused this function to run.
-     *
-     * @listens Player#durationchange
-     */
-    updateShowing(event) {
-      if (this.player().duration() === Infinity) {
-        this.show();
-      } else {
-        this.hide();
-      }
-    }
-  }
-  Component$1.registerComponent('LiveDisplay', LiveDisplay);
-
-  /**
-   * @file seek-to-live.js
-   */
-
-  /**
-   * Displays the live indicator when duration is Infinity.
-   *
-   * @extends Component
-   */
-  class SeekToLive extends Button {
-    /**
-     * Creates an instance of this class.
-     *
-     * @param { import('./player').default } player
-     *        The `Player` that this class should be attached to.
-     *
-     * @param {Object} [options]
-     *        The key/value store of player options.
-     */
-    constructor(player, options) {
-      super(player, options);
-      this.updateLiveEdgeStatus();
-      if (this.player_.liveTracker) {
-        this.updateLiveEdgeStatusHandler_ = e => this.updateLiveEdgeStatus(e);
-        this.on(this.player_.liveTracker, 'liveedgechange', this.updateLiveEdgeStatusHandler_);
-      }
-    }
-
-    /**
-     * Create the `Component`'s DOM element
-     *
-     * @return {Element}
-     *         The element that was created.
-     */
-    createEl() {
-      const el = super.createEl('button', {
-        className: 'vjs-seek-to-live-control vjs-control'
-      });
-      this.setIcon('circle', el);
-      this.textEl_ = createEl('span', {
-        className: 'vjs-seek-to-live-text',
-        textContent: this.localize('LIVE')
-      }, {
-        'aria-hidden': 'true'
-      });
-      el.appendChild(this.textEl_);
-      return el;
-    }
-
-    /**
-     * Update the state of this button if we are at the live edge
-     * or not
-     */
-    updateLiveEdgeStatus() {
-      // default to live edge
-      if (!this.player_.liveTracker || this.player_.liveTracker.atLiveEdge()) {
-        this.setAttribute('aria-disabled', true);
-        this.addClass('vjs-at-live-edge');
-        this.controlText('Seek to live, currently playing live');
-      } else {
-        this.setAttribute('aria-disabled', false);
-        this.removeClass('vjs-at-live-edge');
-        this.controlText('Seek to live, currently behind live');
-      }
-    }
-
-    /**
-     * On click bring us as near to the live point as possible.
-     * This requires that we wait for the next `live-seekable-change`
-     * event which will happen every segment length seconds.
-     */
-    handleClick() {
-      this.player_.liveTracker.seekToLiveEdge();
-    }
-
-    /**
-     * Dispose of the element and stop tracking
-     */
-    dispose() {
-      if (this.player_.liveTracker) {
-        this.off(this.player_.liveTracker, 'liveedgechange', this.updateLiveEdgeStatusHandler_);
-      }
-      this.textEl_ = null;
-      super.dispose();
-    }
-  }
-  /**
-   * The text that should display over the `SeekToLive`s control. Added for localization.
-   *
-   * @type {string}
-   * @protected
-   */
-  SeekToLive.prototype.controlText_ = 'Seek to live, currently playing live';
-  Component$1.registerComponent('SeekToLive', SeekToLive);
-
-  /**
-   * @file num.js
-   * @module num
-   */
-
-  /**
-   * Keep a number between a min and a max value
-   *
-   * @param {number} number
-   *        The number to clamp
-   *
-   * @param {number} min
-   *        The minimum value
-   * @param {number} max
-   *        The maximum value
-   *
-   * @return {number}
-   *         the clamped number
-   */
-  function clamp(number, min, max) {
-    number = Number(number);
-    return Math.min(max, Math.max(min, isNaN(number) ? min : number));
-  }
-
-  var Num = /*#__PURE__*/Object.freeze({
-    __proto__: null,
-    clamp: clamp
-  });
-
-  /**
-   * @file slider.js
-   */
-
-  /**
-   * The base functionality for a slider. Can be vertical or horizontal.
-   * For instance the volume bar or the seek bar on a video is a slider.
-   *
-   * @extends Component
-   */
-  class Slider extends Component$1 {
-    /**
-    * Create an instance of this class
-    *
-    * @param { import('../player').default } player
-    *        The `Player` that this class should be attached to.
-    *
-    * @param {Object} [options]
-    *        The key/value store of player options.
-    */
-    constructor(player, options) {
-      super(player, options);
-      this.handleMouseDown_ = e => this.handleMouseDown(e);
-      this.handleMouseUp_ = e => this.handleMouseUp(e);
-      this.handleKeyDown_ = e => this.handleKeyDown(e);
-      this.handleClick_ = e => this.handleClick(e);
-      this.handleMouseMove_ = e => this.handleMouseMove(e);
-      this.update_ = e => this.update(e);
-
-      // Set property names to bar to match with the child Slider class is looking for
-      this.bar = this.getChild(this.options_.barName);
-
-      // Set a horizontal or vertical class on the slider depending on the slider type
-      this.vertical(!!this.options_.vertical);
-      this.enable();
-    }
-
-    /**
-     * Are controls are currently enabled for this slider or not.
-     *
-     * @return {boolean}
-     *         true if controls are enabled, false otherwise
-     */
-    enabled() {
-      return this.enabled_;
-    }
-
-    /**
-     * Enable controls for this slider if they are disabled
-     */
-    enable() {
-      if (this.enabled()) {
-        return;
-      }
-      this.on('mousedown', this.handleMouseDown_);
-      this.on('touchstart', this.handleMouseDown_);
-      this.on('keydown', this.handleKeyDown_);
-      this.on('click', this.handleClick_);
-
-      // TODO: deprecated, controlsvisible does not seem to be fired
-      this.on(this.player_, 'controlsvisible', this.update);
-      if (this.playerEvent) {
-        this.on(this.player_, this.playerEvent, this.update);
-      }
-      this.removeClass('disabled');
-      this.setAttribute('tabindex', 0);
-      this.enabled_ = true;
-    }
-
-    /**
-     * Disable controls for this slider if they are enabled
-     */
-    disable() {
-      if (!this.enabled()) {
-        return;
-      }
-      const doc = this.bar.el_.ownerDocument;
-      this.off('mousedown', this.handleMouseDown_);
-      this.off('touchstart', this.handleMouseDown_);
-      this.off('keydown', this.handleKeyDown_);
-      this.off('click', this.handleClick_);
-      this.off(this.player_, 'controlsvisible', this.update_);
-      this.off(doc, 'mousemove', this.handleMouseMove_);
-      this.off(doc, 'mouseup', this.handleMouseUp_);
-      this.off(doc, 'touchmove', this.handleMouseMove_);
-      this.off(doc, 'touchend', this.handleMouseUp_);
-      this.removeAttribute('tabindex');
-      this.addClass('disabled');
-      if (this.playerEvent) {
-        this.off(this.player_, this.playerEvent, this.update);
-      }
-      this.enabled_ = false;
-    }
-
-    /**
-     * Create the `Slider`s DOM element.
-     *
-     * @param {string} type
-     *        Type of element to create.
-     *
-     * @param {Object} [props={}]
-     *        List of properties in Object form.
-     *
-     * @param {Object} [attributes={}]
-     *        list of attributes in Object form.
-     *
-     * @return {Element}
-     *         The element that gets created.
-     */
-    createEl(type, props = {}, attributes = {}) {
-      // Add the slider element class to all sub classes
-      props.className = props.className + ' vjs-slider';
-      props = Object.assign({
-        tabIndex: 0
-      }, props);
-      attributes = Object.assign({
-        'role': 'slider',
-        'aria-valuenow': 0,
-        'aria-valuemin': 0,
-        'aria-valuemax': 100
-      }, attributes);
-      return super.createEl(type, props, attributes);
-    }
-
-    /**
-     * Handle `mousedown` or `touchstart` events on the `Slider`.
-     *
-     * @param {MouseEvent} event
-     *        `mousedown` or `touchstart` event that triggered this function
-     *
-     * @listens mousedown
-     * @listens touchstart
-     * @fires Slider#slideractive
-     */
-    handleMouseDown(event) {
-      const doc = this.bar.el_.ownerDocument;
-      if (event.type === 'mousedown') {
-        event.preventDefault();
-      }
-      // Do not call preventDefault() on touchstart in Chrome
-      // to avoid console warnings. Use a 'touch-action: none' style
-      // instead to prevent unintended scrolling.
-      // https://developers.google.com/web/updates/2017/01/scrolling-intervention
-      if (event.type === 'touchstart' && !IS_CHROME) {
-        event.preventDefault();
-      }
-      blockTextSelection();
-      this.addClass('vjs-sliding');
-      /**
-       * Triggered when the slider is in an active state
-       *
-       * @event Slider#slideractive
-       * @type {MouseEvent}
-       */
-      this.trigger('slideractive');
-      this.on(doc, 'mousemove', this.handleMouseMove_);
-      this.on(doc, 'mouseup', this.handleMouseUp_);
-      this.on(doc, 'touchmove', this.handleMouseMove_);
-      this.on(doc, 'touchend', this.handleMouseUp_);
-      this.handleMouseMove(event, true);
-    }
-
-    /**
-     * Handle the `mousemove`, `touchmove`, and `mousedown` events on this `Slider`.
-     * The `mousemove` and `touchmove` events will only only trigger this function during
-     * `mousedown` and `touchstart`. This is due to {@link Slider#handleMouseDown} and
-     * {@link Slider#handleMouseUp}.
-     *
-     * @param {MouseEvent} event
-     *        `mousedown`, `mousemove`, `touchstart`, or `touchmove` event that triggered
-     *        this function
-     * @param {boolean} mouseDown this is a flag that should be set to true if `handleMouseMove` is called directly. It allows us to skip things that should not happen if coming from mouse down but should happen on regular mouse move handler. Defaults to false.
-     *
-     * @listens mousemove
-     * @listens touchmove
-     */
-    handleMouseMove(event) {}
-
-    /**
-     * Handle `mouseup` or `touchend` events on the `Slider`.
-     *
-     * @param {MouseEvent} event
-     *        `mouseup` or `touchend` event that triggered this function.
-     *
-     * @listens touchend
-     * @listens mouseup
-     * @fires Slider#sliderinactive
-     */
-    handleMouseUp(event) {
-      const doc = this.bar.el_.ownerDocument;
-      unblockTextSelection();
-      this.removeClass('vjs-sliding');
-      /**
-       * Triggered when the slider is no longer in an active state.
-       *
-       * @event Slider#sliderinactive
-       * @type {Event}
-       */
-      this.trigger('sliderinactive');
-      this.off(doc, 'mousemove', this.handleMouseMove_);
-      this.off(doc, 'mouseup', this.handleMouseUp_);
-      this.off(doc, 'touchmove', this.handleMouseMove_);
-      this.off(doc, 'touchend', this.handleMouseUp_);
-      this.update();
-    }
-
-    /**
-     * Update the progress bar of the `Slider`.
-     *
-     * @return {number}
-     *          The percentage of progress the progress bar represents as a
-     *          number from 0 to 1.
-     */
-    update() {
-      // In VolumeBar init we have a setTimeout for update that pops and update
-      // to the end of the execution stack. The player is destroyed before then
-      // update will cause an error
-      // If there's no bar...
-      if (!this.el_ || !this.bar) {
-        return;
-      }
-
-      // clamp progress between 0 and 1
-      // and only round to four decimal places, as we round to two below
-      const progress = this.getProgress();
-      if (progress === this.progress_) {
-        return progress;
-      }
-      this.progress_ = progress;
-      this.requestNamedAnimationFrame('Slider#update', () => {
-        // Set the new bar width or height
-        const sizeKey = this.vertical() ? 'height' : 'width';
-
-        // Convert to a percentage for css value
-        this.bar.el().style[sizeKey] = (progress * 100).toFixed(2) + '%';
-      });
-      return progress;
-    }
-
-    /**
-     * Get the percentage of the bar that should be filled
-     * but clamped and rounded.
-     *
-     * @return {number}
-     *         percentage filled that the slider is
-     */
-    getProgress() {
-      return Number(clamp(this.getPercent(), 0, 1).toFixed(4));
-    }
-
-    /**
-     * Calculate distance for slider
-     *
-     * @param {Event} event
-     *        The event that caused this function to run.
-     *
-     * @return {number}
-     *         The current position of the Slider.
-     *         - position.x for vertical `Slider`s
-     *         - position.y for horizontal `Slider`s
-     */
-    calculateDistance(event) {
-      const position = getPointerPosition(this.el_, event);
-      if (this.vertical()) {
-        return position.y;
-      }
-      return position.x;
-    }
-
-    /**
-     * Handle a `keydown` event on the `Slider`. Watches for left, right, up, and down
-     * arrow keys. This function will only be called when the slider has focus. See
-     * {@link Slider#handleFocus} and {@link Slider#handleBlur}.
-     *
-     * @param {KeyboardEvent} event
-     *        the `keydown` event that caused this function to run.
-     *
-     * @listens keydown
-     */
-    handleKeyDown(event) {
-      // Left and Down Arrows
-      if (keycode.isEventKey(event, 'Left') || keycode.isEventKey(event, 'Down')) {
-        event.preventDefault();
-        event.stopPropagation();
-        this.stepBack();
-
-        // Up and Right Arrows
-      } else if (keycode.isEventKey(event, 'Right') || keycode.isEventKey(event, 'Up')) {
-        event.preventDefault();
-        event.stopPropagation();
-        this.stepForward();
-      } else {
-        // Pass keydown handling up for unsupported keys
-        super.handleKeyDown(event);
-      }
-    }
-
-    /**
-     * Listener for click events on slider, used to prevent clicks
-     *   from bubbling up to parent elements like button menus.
-     *
-     * @param {Object} event
-     *        Event that caused this object to run
-     */
-    handleClick(event) {
-      event.stopPropagation();
-      event.preventDefault();
-    }
-
-    /**
-     * Get/set if slider is horizontal for vertical
-     *
-     * @param {boolean} [bool]
-     *        - true if slider is vertical,
-     *        - false is horizontal
-     *
-     * @return {boolean}
-     *         - true if slider is vertical, and getting
-     *         - false if the slider is horizontal, and getting
-     */
-    vertical(bool) {
-      if (bool === undefined) {
-        return this.vertical_ || false;
-      }
-      this.vertical_ = !!bool;
-      if (this.vertical_) {
-        this.addClass('vjs-slider-vertical');
-      } else {
-        this.addClass('vjs-slider-horizontal');
-      }
-    }
-  }
-  Component$1.registerComponent('Slider', Slider);
-
-  /**
-   * @file load-progress-bar.js
-   */
-
-  // get the percent width of a time compared to the total end
-  const percentify = (time, end) => clamp(time / end * 100, 0, 100).toFixed(2) + '%';
-
-  /**
-   * Shows loading progress
-   *
-   * @extends Component
-   */
-  class LoadProgressBar extends Component$1 {
-    /**
-     * Creates an instance of this class.
-     *
-     * @param { import('../../player').default } player
-     *        The `Player` that this class should be attached to.
-     *
-     * @param {Object} [options]
-     *        The key/value store of player options.
-     */
-    constructor(player, options) {
-      super(player, options);
-      this.partEls_ = [];
-      this.on(player, 'progress', e => this.update(e));
-    }
-
-    /**
-     * Create the `Component`'s DOM element
-     *
-     * @return {Element}
-     *         The element that was created.
-     */
-    createEl() {
-      const el = super.createEl('div', {
-        className: 'vjs-load-progress'
-      });
-      const wrapper = createEl('span', {
-        className: 'vjs-control-text'
-      });
-      const loadedText = createEl('span', {
-        textContent: this.localize('Loaded')
-      });
-      const separator = document.createTextNode(': ');
-      this.percentageEl_ = createEl('span', {
-        className: 'vjs-control-text-loaded-percentage',
-        textContent: '0%'
-      });
-      el.appendChild(wrapper);
-      wrapper.appendChild(loadedText);
-      wrapper.appendChild(separator);
-      wrapper.appendChild(this.percentageEl_);
-      return el;
-    }
-    dispose() {
-      this.partEls_ = null;
-      this.percentageEl_ = null;
-      super.dispose();
-    }
-
-    /**
-     * Update progress bar
-     *
-     * @param {Event} [event]
-     *        The `progress` event that caused this function to run.
-     *
-     * @listens Player#progress
-     */
-    update(event) {
-      this.requestNamedAnimationFrame('LoadProgressBar#update', () => {
-        const liveTracker = this.player_.liveTracker;
-        const buffered = this.player_.buffered();
-        const duration = liveTracker && liveTracker.isLive() ? liveTracker.seekableEnd() : this.player_.duration();
-        const bufferedEnd = this.player_.bufferedEnd();
-        const children = this.partEls_;
-        const percent = percentify(bufferedEnd, duration);
-        if (this.percent_ !== percent) {
-          // update the width of the progress bar
-          this.el_.style.width = percent;
-          // update the control-text
-          textContent(this.percentageEl_, percent);
-          this.percent_ = percent;
-        }
-
-        // add child elements to represent the individual buffered time ranges
-        for (let i = 0; i < buffered.length; i++) {
-          const start = buffered.start(i);
-          const end = buffered.end(i);
-          let part = children[i];
-          if (!part) {
-            part = this.el_.appendChild(createEl());
-            children[i] = part;
-          }
-
-          //  only update if changed
-          if (part.dataset.start === start && part.dataset.end === end) {
-            continue;
-          }
-          part.dataset.start = start;
-          part.dataset.end = end;
-
-          // set the percent based on the width of the progress bar (bufferedEnd)
-          part.style.left = percentify(start, bufferedEnd);
-          part.style.width = percentify(end - start, bufferedEnd);
-        }
-
-        // remove unused buffered range elements
-        for (let i = children.length; i > buffered.length; i--) {
-          this.el_.removeChild(children[i - 1]);
-        }
-        children.length = buffered.length;
-      });
-    }
-  }
-  Component$1.registerComponent('LoadProgressBar', LoadProgressBar);
-
-  /**
-   * @file time-tooltip.js
-   */
-
-  /**
-   * Time tooltips display a time above the progress bar.
-   *
-   * @extends Component
-   */
-  class TimeTooltip extends Component$1 {
-    /**
-     * Creates an instance of this class.
-     *
-     * @param { import('../../player').default } player
-     *        The {@link Player} that this class should be attached to.
-     *
-     * @param {Object} [options]
-     *        The key/value store of player options.
-     */
-    constructor(player, options) {
-      super(player, options);
-      this.update = throttle(bind_(this, this.update), UPDATE_REFRESH_INTERVAL);
-    }
-
-    /**
-     * Create the time tooltip DOM element
-     *
-     * @return {Element}
-     *         The element that was created.
-     */
-    createEl() {
-      return super.createEl('div', {
-        className: 'vjs-time-tooltip'
-      }, {
-        'aria-hidden': 'true'
-      });
-    }
-
-    /**
-     * Updates the position of the time tooltip relative to the `SeekBar`.
-     *
-     * @param {Object} seekBarRect
-     *        The `ClientRect` for the {@link SeekBar} element.
-     *
-     * @param {number} seekBarPoint
-     *        A number from 0 to 1, representing a horizontal reference point
-     *        from the left edge of the {@link SeekBar}
-     */
-    update(seekBarRect, seekBarPoint, content) {
-      const tooltipRect = findPosition(this.el_);
-      const playerRect = getBoundingClientRect(this.player_.el());
-      const seekBarPointPx = seekBarRect.width * seekBarPoint;
-
-      // do nothing if either rect isn't available
-      // for example, if the player isn't in the DOM for testing
-      if (!playerRect || !tooltipRect) {
-        return;
-      }
-
-      // This is the space left of the `seekBarPoint` available within the bounds
-      // of the player. We calculate any gap between the left edge of the player
-      // and the left edge of the `SeekBar` and add the number of pixels in the
-      // `SeekBar` before hitting the `seekBarPoint`
-      let spaceLeftOfPoint = seekBarRect.left - playerRect.left + seekBarPointPx;
-
-      // This is the space right of the `seekBarPoint` available within the bounds
-      // of the player. We calculate the number of pixels from the `seekBarPoint`
-      // to the right edge of the `SeekBar` and add to that any gap between the
-      // right edge of the `SeekBar` and the player.
-      let spaceRightOfPoint = seekBarRect.width - seekBarPointPx + (playerRect.right - seekBarRect.right);
-
-      // spaceRightOfPoint is always NaN for mouse time display
-      // because the seekbarRect does not have a right property. This causes
-      // the mouse tool tip to be truncated when it's close to the right edge of the player.
-      // In such cases, we ignore the `playerRect.right - seekBarRect.right` value when calculating.
-      // For the sake of consistency, we ignore seekBarRect.left - playerRect.left for the left edge.
-      if (!spaceRightOfPoint) {
-        spaceRightOfPoint = seekBarRect.width - seekBarPointPx;
-        spaceLeftOfPoint = seekBarPointPx;
-      }
-      // This is the number of pixels by which the tooltip will need to be pulled
-      // further to the right to center it over the `seekBarPoint`.
-      let pullTooltipBy = tooltipRect.width / 2;
-
-      // Adjust the `pullTooltipBy` distance to the left or right depending on
-      // the results of the space calculations above.
-      if (spaceLeftOfPoint < pullTooltipBy) {
-        pullTooltipBy += pullTooltipBy - spaceLeftOfPoint;
-      } else if (spaceRightOfPoint < pullTooltipBy) {
-        pullTooltipBy = spaceRightOfPoint;
-      }
-
-      // Due to the imprecision of decimal/ratio based calculations and varying
-      // rounding behaviors, there are cases where the spacing adjustment is off
-      // by a pixel or two. This adds insurance to these calculations.
-      if (pullTooltipBy < 0) {
-        pullTooltipBy = 0;
-      } else if (pullTooltipBy > tooltipRect.width) {
-        pullTooltipBy = tooltipRect.width;
-      }
-
-      // prevent small width fluctuations within 0.4px from
-      // changing the value below.
-      // This really helps for live to prevent the play
-      // progress time tooltip from jittering
-      pullTooltipBy = Math.round(pullTooltipBy);
-      this.el_.style.right = `-${pullTooltipBy}px`;
-      this.write(content);
-    }
-
-    /**
-     * Write the time to the tooltip DOM element.
-     *
-     * @param {string} content
-     *        The formatted time for the tooltip.
-     */
-    write(content) {
-      textContent(this.el_, content);
-    }
-
-    /**
-     * Updates the position of the time tooltip relative to the `SeekBar`.
-     *
-     * @param {Object} seekBarRect
-     *        The `ClientRect` for the {@link SeekBar} element.
-     *
-     * @param {number} seekBarPoint
-     *        A number from 0 to 1, representing a horizontal reference point
-     *        from the left edge of the {@link SeekBar}
-     *
-     * @param {number} time
-     *        The time to update the tooltip to, not used during live playback
-     *
-     * @param {Function} cb
-     *        A function that will be called during the request animation frame
-     *        for tooltips that need to do additional animations from the default
-     */
-    updateTime(seekBarRect, seekBarPoint, time, cb) {
-      this.requestNamedAnimationFrame('TimeTooltip#updateTime', () => {
-        let content;
-        const duration = this.player_.duration();
-        if (this.player_.liveTracker && this.player_.liveTracker.isLive()) {
-          const liveWindow = this.player_.liveTracker.liveWindow();
-          const secondsBehind = liveWindow - seekBarPoint * liveWindow;
-          content = (secondsBehind < 1 ? '' : '-') + formatTime(secondsBehind, liveWindow);
-        } else {
-          content = formatTime(time, duration);
-        }
-        this.update(seekBarRect, seekBarPoint, content);
-        if (cb) {
-          cb();
-        }
-      });
-    }
-  }
-  Component$1.registerComponent('TimeTooltip', TimeTooltip);
-
-  /**
-   * @file play-progress-bar.js
-   */
-
-  /**
-   * Used by {@link SeekBar} to display media playback progress as part of the
-   * {@link ProgressControl}.
-   *
-   * @extends Component
-   */
-  class PlayProgressBar extends Component$1 {
-    /**
-     * Creates an instance of this class.
-     *
-     * @param { import('../../player').default } player
-     *        The {@link Player} that this class should be attached to.
-     *
-     * @param {Object} [options]
-     *        The key/value store of player options.
-     */
-    constructor(player, options) {
-      super(player, options);
-      this.setIcon('circle');
-      this.update = throttle(bind_(this, this.update), UPDATE_REFRESH_INTERVAL);
-    }
-
-    /**
-     * Create the the DOM element for this class.
-     *
-     * @return {Element}
-     *         The element that was created.
-     */
-    createEl() {
-      return super.createEl('div', {
-        className: 'vjs-play-progress vjs-slider-bar'
-      }, {
-        'aria-hidden': 'true'
-      });
-    }
-
-    /**
-     * Enqueues updates to its own DOM as well as the DOM of its
-     * {@link TimeTooltip} child.
-     *
-     * @param {Object} seekBarRect
-     *        The `ClientRect` for the {@link SeekBar} element.
-     *
-     * @param {number} seekBarPoint
-     *        A number from 0 to 1, representing a horizontal reference point
-     *        from the left edge of the {@link SeekBar}
-     */
-    update(seekBarRect, seekBarPoint) {
-      const timeTooltip = this.getChild('timeTooltip');
-      if (!timeTooltip) {
-        return;
-      }
-      const time = this.player_.scrubbing() ? this.player_.getCache().currentTime : this.player_.currentTime();
-      timeTooltip.updateTime(seekBarRect, seekBarPoint, time);
-    }
-  }
-
-  /**
-   * Default options for {@link PlayProgressBar}.
-   *
-   * @type {Object}
-   * @private
-   */
-  PlayProgressBar.prototype.options_ = {
-    children: []
-  };
-
-  // Time tooltips should not be added to a player on mobile devices
-  if (!IS_IOS && !IS_ANDROID) {
-    PlayProgressBar.prototype.options_.children.push('timeTooltip');
-  }
-  Component$1.registerComponent('PlayProgressBar', PlayProgressBar);
-
-  /**
-   * @file mouse-time-display.js
-   */
-
-  /**
-   * The {@link MouseTimeDisplay} component tracks mouse movement over the
-   * {@link ProgressControl}. It displays an indicator and a {@link TimeTooltip}
-   * indicating the time which is represented by a given point in the
-   * {@link ProgressControl}.
-   *
-   * @extends Component
-   */
-  class MouseTimeDisplay extends Component$1 {
-    /**
-     * Creates an instance of this class.
-     *
-     * @param { import('../../player').default } player
-     *        The {@link Player} that this class should be attached to.
-     *
-     * @param {Object} [options]
-     *        The key/value store of player options.
-     */
-    constructor(player, options) {
-      super(player, options);
-      this.update = throttle(bind_(this, this.update), UPDATE_REFRESH_INTERVAL);
-    }
-
-    /**
-     * Create the DOM element for this class.
-     *
-     * @return {Element}
-     *         The element that was created.
-     */
-    createEl() {
-      return super.createEl('div', {
-        className: 'vjs-mouse-display'
-      });
-    }
-
-    /**
-     * Enqueues updates to its own DOM as well as the DOM of its
-     * {@link TimeTooltip} child.
-     *
-     * @param {Object} seekBarRect
-     *        The `ClientRect` for the {@link SeekBar} element.
-     *
-     * @param {number} seekBarPoint
-     *        A number from 0 to 1, representing a horizontal reference point
-     *        from the left edge of the {@link SeekBar}
-     */
-    update(seekBarRect, seekBarPoint) {
-      const time = seekBarPoint * this.player_.duration();
-      this.getChild('timeTooltip').updateTime(seekBarRect, seekBarPoint, time, () => {
-        this.el_.style.left = `${seekBarRect.width * seekBarPoint}px`;
-      });
-    }
-  }
-
-  /**
-   * Default options for `MouseTimeDisplay`
-   *
-   * @type {Object}
-   * @private
-   */
-  MouseTimeDisplay.prototype.options_ = {
-    children: ['timeTooltip']
-  };
-  Component$1.registerComponent('MouseTimeDisplay', MouseTimeDisplay);
-
-  /**
-   * @file seek-bar.js
-   */
-
-  // The number of seconds the `step*` functions move the timeline.
-  const STEP_SECONDS = 5;
-
-  // The multiplier of STEP_SECONDS that PgUp/PgDown move the timeline.
-  const PAGE_KEY_MULTIPLIER = 12;
-
-  /**
-   * Seek bar and container for the progress bars. Uses {@link PlayProgressBar}
-   * as its `bar`.
-   *
-   * @extends Slider
-   */
-  class SeekBar extends Slider {
-    /**
-     * Creates an instance of this class.
-     *
-     * @param { import('../../player').default } player
-     *        The `Player` that this class should be attached to.
-     *
-     * @param {Object} [options]
-     *        The key/value store of player options.
-     */
-    constructor(player, options) {
-      super(player, options);
-      this.setEventHandlers_();
-    }
-
-    /**
-     * Sets the event handlers
-     *
-     * @private
-     */
-    setEventHandlers_() {
-      this.update_ = bind_(this, this.update);
-      this.update = throttle(this.update_, UPDATE_REFRESH_INTERVAL);
-      this.on(this.player_, ['ended', 'durationchange', 'timeupdate'], this.update);
-      if (this.player_.liveTracker) {
-        this.on(this.player_.liveTracker, 'liveedgechange', this.update);
-      }
-
-      // when playing, let's ensure we smoothly update the play progress bar
-      // via an interval
-      this.updateInterval = null;
-      this.enableIntervalHandler_ = e => this.enableInterval_(e);
-      this.disableIntervalHandler_ = e => this.disableInterval_(e);
-      this.on(this.player_, ['playing'], this.enableIntervalHandler_);
-      this.on(this.player_, ['ended', 'pause', 'waiting'], this.disableIntervalHandler_);
-
-      // we don't need to update the play progress if the document is hidden,
-      // also, this causes the CPU to spike and eventually crash the page on IE11.
-      if ('hidden' in document && 'visibilityState' in document) {
-        this.on(document, 'visibilitychange', this.toggleVisibility_);
-      }
-    }
-    toggleVisibility_(e) {
-      if (document.visibilityState === 'hidden') {
-        this.cancelNamedAnimationFrame('SeekBar#update');
-        this.cancelNamedAnimationFrame('Slider#update');
-        this.disableInterval_(e);
-      } else {
-        if (!this.player_.ended() && !this.player_.paused()) {
-          this.enableInterval_();
-        }
-
-        // we just switched back to the page and someone may be looking, so, update ASAP
-        this.update();
-      }
-    }
-    enableInterval_() {
-      if (this.updateInterval) {
-        return;
-      }
-      this.updateInterval = this.setInterval(this.update, UPDATE_REFRESH_INTERVAL);
-    }
-    disableInterval_(e) {
-      if (this.player_.liveTracker && this.player_.liveTracker.isLive() && e && e.type !== 'ended') {
-        return;
-      }
-      if (!this.updateInterval) {
-        return;
-      }
-      this.clearInterval(this.updateInterval);
-      this.updateInterval = null;
-    }
-
-    /**
-     * Create the `Component`'s DOM element
-     *
-     * @return {Element}
-     *         The element that was created.
-     */
-    createEl() {
-      return super.createEl('div', {
-        className: 'vjs-progress-holder'
-      }, {
-        'aria-label': this.localize('Progress Bar')
-      });
-    }
-
-    /**
-     * This function updates the play progress bar and accessibility
-     * attributes to whatever is passed in.
-     *
-     * @param {Event} [event]
-     *        The `timeupdate` or `ended` event that caused this to run.
-     *
-     * @listens Player#timeupdate
-     *
-     * @return {number}
-     *          The current percent at a number from 0-1
-     */
-    update(event) {
-      // ignore updates while the tab is hidden
-      if (document.visibilityState === 'hidden') {
-        return;
-      }
-      const percent = super.update();
-      this.requestNamedAnimationFrame('SeekBar#update', () => {
-        const currentTime = this.player_.ended() ? this.player_.duration() : this.getCurrentTime_();
-        const liveTracker = this.player_.liveTracker;
-        let duration = this.player_.duration();
-        if (liveTracker && liveTracker.isLive()) {
-          duration = this.player_.liveTracker.liveCurrentTime();
-        }
-        if (this.percent_ !== percent) {
-          // machine readable value of progress bar (percentage complete)
-          this.el_.setAttribute('aria-valuenow', (percent * 100).toFixed(2));
-          this.percent_ = percent;
-        }
-        if (this.currentTime_ !== currentTime || this.duration_ !== duration) {
-          // human readable value of progress bar (time complete)
-          this.el_.setAttribute('aria-valuetext', this.localize('progress bar timing: currentTime={1} duration={2}', [formatTime(currentTime, duration), formatTime(duration, duration)], '{1} of {2}'));
-          this.currentTime_ = currentTime;
-          this.duration_ = duration;
-        }
-
-        // update the progress bar time tooltip with the current time
-        if (this.bar) {
-          this.bar.update(getBoundingClientRect(this.el()), this.getProgress());
-        }
-      });
-      return percent;
-    }
-
-    /**
-     * Prevent liveThreshold from causing seeks to seem like they
-     * are not happening from a user perspective.
-     *
-     * @param {number} ct
-     *        current time to seek to
-     */
-    userSeek_(ct) {
-      if (this.player_.liveTracker && this.player_.liveTracker.isLive()) {
-        this.player_.liveTracker.nextSeekedFromUser();
-      }
-      this.player_.currentTime(ct);
-    }
-
-    /**
-     * Get the value of current time but allows for smooth scrubbing,
-     * when player can't keep up.
-     *
-     * @return {number}
-     *         The current time value to display
-     *
-     * @private
-     */
-    getCurrentTime_() {
-      return this.player_.scrubbing() ? this.player_.getCache().currentTime : this.player_.currentTime();
-    }
-
-    /**
-     * Get the percentage of media played so far.
-     *
-     * @return {number}
-     *         The percentage of media played so far (0 to 1).
-     */
-    getPercent() {
-      const currentTime = this.getCurrentTime_();
-      let percent;
-      const liveTracker = this.player_.liveTracker;
-      if (liveTracker && liveTracker.isLive()) {
-        percent = (currentTime - liveTracker.seekableStart()) / liveTracker.liveWindow();
-
-        // prevent the percent from changing at the live edge
-        if (liveTracker.atLiveEdge()) {
-          percent = 1;
-        }
-      } else {
-        percent = currentTime / this.player_.duration();
-      }
-      return percent;
-    }
-
-    /**
-     * Handle mouse down on seek bar
-     *
-     * @param {MouseEvent} event
-     *        The `mousedown` event that caused this to run.
-     *
-     * @listens mousedown
-     */
-    handleMouseDown(event) {
-      if (!isSingleLeftClick(event)) {
-        return;
-      }
-
-      // Stop event propagation to prevent double fire in progress-control.js
-      event.stopPropagation();
-      this.videoWasPlaying = !this.player_.paused();
-      this.player_.pause();
-      super.handleMouseDown(event);
-    }
-
-    /**
-     * Handle mouse move on seek bar
-     *
-     * @param {MouseEvent} event
-     *        The `mousemove` event that caused this to run.
-     * @param {boolean} mouseDown this is a flag that should be set to true if `handleMouseMove` is called directly. It allows us to skip things that should not happen if coming from mouse down but should happen on regular mouse move handler. Defaults to false
-     *
-     * @listens mousemove
-     */
-    handleMouseMove(event, mouseDown = false) {
-      if (!isSingleLeftClick(event) || isNaN(this.player_.duration())) {
-        return;
-      }
-      if (!mouseDown && !this.player_.scrubbing()) {
-        this.player_.scrubbing(true);
-      }
-      let newTime;
-      const distance = this.calculateDistance(event);
-      const liveTracker = this.player_.liveTracker;
-      if (!liveTracker || !liveTracker.isLive()) {
-        newTime = distance * this.player_.duration();
-
-        // Don't let video end while scrubbing.
-        if (newTime === this.player_.duration()) {
-          newTime = newTime - 0.1;
-        }
-      } else {
-        if (distance >= 0.99) {
-          liveTracker.seekToLiveEdge();
-          return;
-        }
-        const seekableStart = liveTracker.seekableStart();
-        const seekableEnd = liveTracker.liveCurrentTime();
-        newTime = seekableStart + distance * liveTracker.liveWindow();
-
-        // Don't let video end while scrubbing.
-        if (newTime >= seekableEnd) {
-          newTime = seekableEnd;
-        }
-
-        // Compensate for precision differences so that currentTime is not less
-        // than seekable start
-        if (newTime <= seekableStart) {
-          newTime = seekableStart + 0.1;
-        }
-
-        // On android seekableEnd can be Infinity sometimes,
-        // this will cause newTime to be Infinity, which is
-        // not a valid currentTime.
-        if (newTime === Infinity) {
-          return;
-        }
-      }
-
-      // Set new time (tell player to seek to new time)
-      this.userSeek_(newTime);
-      if (this.player_.options_.enableSmoothSeeking) {
-        this.update();
-      }
-    }
-    enable() {
-      super.enable();
-      const mouseTimeDisplay = this.getChild('mouseTimeDisplay');
-      if (!mouseTimeDisplay) {
-        return;
-      }
-      mouseTimeDisplay.show();
-    }
-    disable() {
-      super.disable();
-      const mouseTimeDisplay = this.getChild('mouseTimeDisplay');
-      if (!mouseTimeDisplay) {
-        return;
-      }
-      mouseTimeDisplay.hide();
-    }
-
-    /**
-     * Handle mouse up on seek bar
-     *
-     * @param {MouseEvent} event
-     *        The `mouseup` event that caused this to run.
-     *
-     * @listens mouseup
-     */
-    handleMouseUp(event) {
-      super.handleMouseUp(event);
-
-      // Stop event propagation to prevent double fire in progress-control.js
-      if (event) {
-        event.stopPropagation();
-      }
-      this.player_.scrubbing(false);
-
-      /**
-       * Trigger timeupdate because we're done seeking and the time has changed.
-       * This is particularly useful for if the player is paused to time the time displays.
-       *
-       * @event Tech#timeupdate
-       * @type {Event}
-       */
-      this.player_.trigger({
-        type: 'timeupdate',
-        target: this,
-        manuallyTriggered: true
-      });
-      if (this.videoWasPlaying) {
-        silencePromise(this.player_.play());
-      } else {
-        // We're done seeking and the time has changed.
-        // If the player is paused, make sure we display the correct time on the seek bar.
-        this.update_();
-      }
-    }
-
-    /**
-     * Move more quickly fast forward for keyboard-only users
-     */
-    stepForward() {
-      this.userSeek_(this.player_.currentTime() + STEP_SECONDS);
-    }
-
-    /**
-     * Move more quickly rewind for keyboard-only users
-     */
-    stepBack() {
-      this.userSeek_(this.player_.currentTime() - STEP_SECONDS);
-    }
-
-    /**
-     * Toggles the playback state of the player
-     * This gets called when enter or space is used on the seekbar
-     *
-     * @param {KeyboardEvent} event
-     *        The `keydown` event that caused this function to be called
-     *
-     */
-    handleAction(event) {
-      if (this.player_.paused()) {
-        this.player_.play();
-      } else {
-        this.player_.pause();
-      }
-    }
-
-    /**
-     * Called when this SeekBar has focus and a key gets pressed down.
-     * Supports the following keys:
-     *
-     *   Space or Enter key fire a click event
-     *   Home key moves to start of the timeline
-     *   End key moves to end of the timeline
-     *   Digit "0" through "9" keys move to 0%, 10% ... 80%, 90% of the timeline
-     *   PageDown key moves back a larger step than ArrowDown
-     *   PageUp key moves forward a large step
-     *
-     * @param {KeyboardEvent} event
-     *        The `keydown` event that caused this function to be called.
-     *
-     * @listens keydown
-     */
-    handleKeyDown(event) {
-      const liveTracker = this.player_.liveTracker;
-      if (keycode.isEventKey(event, 'Space') || keycode.isEventKey(event, 'Enter')) {
-        event.preventDefault();
-        event.stopPropagation();
-        this.handleAction(event);
-      } else if (keycode.isEventKey(event, 'Home')) {
-        event.preventDefault();
-        event.stopPropagation();
-        this.userSeek_(0);
-      } else if (keycode.isEventKey(event, 'End')) {
-        event.preventDefault();
-        event.stopPropagation();
-        if (liveTracker && liveTracker.isLive()) {
-          this.userSeek_(liveTracker.liveCurrentTime());
-        } else {
-          this.userSeek_(this.player_.duration());
-        }
-      } else if (/^[0-9]$/.test(keycode(event))) {
-        event.preventDefault();
-        event.stopPropagation();
-        const gotoFraction = (keycode.codes[keycode(event)] - keycode.codes['0']) * 10.0 / 100.0;
-        if (liveTracker && liveTracker.isLive()) {
-          this.userSeek_(liveTracker.seekableStart() + liveTracker.liveWindow() * gotoFraction);
-        } else {
-          this.userSeek_(this.player_.duration() * gotoFraction);
-        }
-      } else if (keycode.isEventKey(event, 'PgDn')) {
-        event.preventDefault();
-        event.stopPropagation();
-        this.userSeek_(this.player_.currentTime() - STEP_SECONDS * PAGE_KEY_MULTIPLIER);
-      } else if (keycode.isEventKey(event, 'PgUp')) {
-        event.preventDefault();
-        event.stopPropagation();
-        this.userSeek_(this.player_.currentTime() + STEP_SECONDS * PAGE_KEY_MULTIPLIER);
-      } else {
-        // Pass keydown handling up for unsupported keys
-        super.handleKeyDown(event);
-      }
-    }
-    dispose() {
-      this.disableInterval_();
-      this.off(this.player_, ['ended', 'durationchange', 'timeupdate'], this.update);
-      if (this.player_.liveTracker) {
-        this.off(this.player_.liveTracker, 'liveedgechange', this.update);
-      }
-      this.off(this.player_, ['playing'], this.enableIntervalHandler_);
-      this.off(this.player_, ['ended', 'pause', 'waiting'], this.disableIntervalHandler_);
-
-      // we don't need to update the play progress if the document is hidden,
-      // also, this causes the CPU to spike and eventually crash the page on IE11.
-      if ('hidden' in document && 'visibilityState' in document) {
-        this.off(document, 'visibilitychange', this.toggleVisibility_);
-      }
-      super.dispose();
-    }
-  }
-
-  /**
-   * Default options for the `SeekBar`
-   *
-   * @type {Object}
-   * @private
-   */
-  SeekBar.prototype.options_ = {
-    children: ['loadProgressBar', 'playProgressBar'],
-    barName: 'playProgressBar'
-  };
-
-  // MouseTimeDisplay tooltips should not be added to a player on mobile devices
-  if (!IS_IOS && !IS_ANDROID) {
-    SeekBar.prototype.options_.children.splice(1, 0, 'mouseTimeDisplay');
-  }
-  Component$1.registerComponent('SeekBar', SeekBar);
-
-  /**
-   * @file progress-control.js
-   */
-
-  /**
-   * The Progress Control component contains the seek bar, load progress,
-   * and play progress.
-   *
-   * @extends Component
-   */
-  class ProgressControl extends Component$1 {
-    /**
-     * Creates an instance of this class.
-     *
-     * @param { import('../../player').default } player
-     *        The `Player` that this class should be attached to.
-     *
-     * @param {Object} [options]
-     *        The key/value store of player options.
-     */
-    constructor(player, options) {
-      super(player, options);
-      this.handleMouseMove = throttle(bind_(this, this.handleMouseMove), UPDATE_REFRESH_INTERVAL);
-      this.throttledHandleMouseSeek = throttle(bind_(this, this.handleMouseSeek), UPDATE_REFRESH_INTERVAL);
-      this.handleMouseUpHandler_ = e => this.handleMouseUp(e);
-      this.handleMouseDownHandler_ = e => this.handleMouseDown(e);
-      this.enable();
-    }
-
-    /**
-     * Create the `Component`'s DOM element
-     *
-     * @return {Element}
-     *         The element that was created.
-     */
-    createEl() {
-      return super.createEl('div', {
-        className: 'vjs-progress-control vjs-control'
-      });
-    }
-
-    /**
-     * When the mouse moves over the `ProgressControl`, the pointer position
-     * gets passed down to the `MouseTimeDisplay` component.
-     *
-     * @param {Event} event
-     *        The `mousemove` event that caused this function to run.
-     *
-     * @listen mousemove
-     */
-    handleMouseMove(event) {
-      const seekBar = this.getChild('seekBar');
-      if (!seekBar) {
-        return;
-      }
-      const playProgressBar = seekBar.getChild('playProgressBar');
-      const mouseTimeDisplay = seekBar.getChild('mouseTimeDisplay');
-      if (!playProgressBar && !mouseTimeDisplay) {
-        return;
-      }
-      const seekBarEl = seekBar.el();
-      const seekBarRect = findPosition(seekBarEl);
-      let seekBarPoint = getPointerPosition(seekBarEl, event).x;
-
-      // The default skin has a gap on either side of the `SeekBar`. This means
-      // that it's possible to trigger this behavior outside the boundaries of
-      // the `SeekBar`. This ensures we stay within it at all times.
-      seekBarPoint = clamp(seekBarPoint, 0, 1);
-      if (mouseTimeDisplay) {
-        mouseTimeDisplay.update(seekBarRect, seekBarPoint);
-      }
-      if (playProgressBar) {
-        playProgressBar.update(seekBarRect, seekBar.getProgress());
-      }
-    }
-
-    /**
-     * A throttled version of the {@link ProgressControl#handleMouseSeek} listener.
-     *
-     * @method ProgressControl#throttledHandleMouseSeek
-     * @param {Event} event
-     *        The `mousemove` event that caused this function to run.
-     *
-     * @listen mousemove
-     * @listen touchmove
-     */
-
-    /**
-     * Handle `mousemove` or `touchmove` events on the `ProgressControl`.
-     *
-     * @param {Event} event
-     *        `mousedown` or `touchstart` event that triggered this function
-     *
-     * @listens mousemove
-     * @listens touchmove
-     */
-    handleMouseSeek(event) {
-      const seekBar = this.getChild('seekBar');
-      if (seekBar) {
-        seekBar.handleMouseMove(event);
-      }
-    }
-
-    /**
-     * Are controls are currently enabled for this progress control.
-     *
-     * @return {boolean}
-     *         true if controls are enabled, false otherwise
-     */
-    enabled() {
-      return this.enabled_;
-    }
-
-    /**
-     * Disable all controls on the progress control and its children
-     */
-    disable() {
-      this.children().forEach(child => child.disable && child.disable());
-      if (!this.enabled()) {
-        return;
-      }
-      this.off(['mousedown', 'touchstart'], this.handleMouseDownHandler_);
-      this.off(this.el_, 'mousemove', this.handleMouseMove);
-      this.removeListenersAddedOnMousedownAndTouchstart();
-      this.addClass('disabled');
-      this.enabled_ = false;
-
-      // Restore normal playback state if controls are disabled while scrubbing
-      if (this.player_.scrubbing()) {
-        const seekBar = this.getChild('seekBar');
-        this.player_.scrubbing(false);
-        if (seekBar.videoWasPlaying) {
-          silencePromise(this.player_.play());
-        }
-      }
-    }
-
-    /**
-     * Enable all controls on the progress control and its children
-     */
-    enable() {
-      this.children().forEach(child => child.enable && child.enable());
-      if (this.enabled()) {
-        return;
-      }
-      this.on(['mousedown', 'touchstart'], this.handleMouseDownHandler_);
-      this.on(this.el_, 'mousemove', this.handleMouseMove);
-      this.removeClass('disabled');
-      this.enabled_ = true;
-    }
-
-    /**
-     * Cleanup listeners after the user finishes interacting with the progress controls
-     */
-    removeListenersAddedOnMousedownAndTouchstart() {
-      const doc = this.el_.ownerDocument;
-      this.off(doc, 'mousemove', this.throttledHandleMouseSeek);
-      this.off(doc, 'touchmove', this.throttledHandleMouseSeek);
-      this.off(doc, 'mouseup', this.handleMouseUpHandler_);
-      this.off(doc, 'touchend', this.handleMouseUpHandler_);
-    }
-
-    /**
-     * Handle `mousedown` or `touchstart` events on the `ProgressControl`.
-     *
-     * @param {Event} event
-     *        `mousedown` or `touchstart` event that triggered this function
-     *
-     * @listens mousedown
-     * @listens touchstart
-     */
-    handleMouseDown(event) {
-      const doc = this.el_.ownerDocument;
-      const seekBar = this.getChild('seekBar');
-      if (seekBar) {
-        seekBar.handleMouseDown(event);
-      }
-      this.on(doc, 'mousemove', this.throttledHandleMouseSeek);
-      this.on(doc, 'touchmove', this.throttledHandleMouseSeek);
-      this.on(doc, 'mouseup', this.handleMouseUpHandler_);
-      this.on(doc, 'touchend', this.handleMouseUpHandler_);
-    }
-
-    /**
-     * Handle `mouseup` or `touchend` events on the `ProgressControl`.
-     *
-     * @param {Event} event
-     *        `mouseup` or `touchend` event that triggered this function.
-     *
-     * @listens touchend
-     * @listens mouseup
-     */
-    handleMouseUp(event) {
-      const seekBar = this.getChild('seekBar');
-      if (seekBar) {
-        seekBar.handleMouseUp(event);
-      }
-      this.removeListenersAddedOnMousedownAndTouchstart();
-    }
-  }
-
-  /**
-   * Default options for `ProgressControl`
-   *
-   * @type {Object}
-   * @private
-   */
-  ProgressControl.prototype.options_ = {
-    children: ['seekBar']
-  };
-  Component$1.registerComponent('ProgressControl', ProgressControl);
-
-  /**
-   * @file picture-in-picture-toggle.js
-   */
-
-  /**
-   * Toggle Picture-in-Picture mode
-   *
-   * @extends Button
-   */
-  class PictureInPictureToggle extends Button {
-    /**
-     * Creates an instance of this class.
-     *
-     * @param { import('./player').default } player
-     *        The `Player` that this class should be attached to.
-     *
-     * @param {Object} [options]
-     *        The key/value store of player options.
-     *
-     * @listens Player#enterpictureinpicture
-     * @listens Player#leavepictureinpicture
-     */
-    constructor(player, options) {
-      super(player, options);
-      this.setIcon('picture-in-picture-enter');
-      this.on(player, ['enterpictureinpicture', 'leavepictureinpicture'], e => this.handlePictureInPictureChange(e));
-      this.on(player, ['disablepictureinpicturechanged', 'loadedmetadata'], e => this.handlePictureInPictureEnabledChange(e));
-      this.on(player, ['loadedmetadata', 'audioonlymodechange', 'audiopostermodechange'], () => this.handlePictureInPictureAudioModeChange());
-
-      // TODO: Deactivate button on player emptied event.
-      this.disable();
-    }
-
-    /**
-     * Builds the default DOM `className`.
-     *
-     * @return {string}
-     *         The DOM `className` for this object.
-     */
-    buildCSSClass() {
-      return `vjs-picture-in-picture-control vjs-hidden ${super.buildCSSClass()}`;
-    }
-
-    /**
-     * Displays or hides the button depending on the audio mode detection.
-     * Exits picture-in-picture if it is enabled when switching to audio mode.
-     */
-    handlePictureInPictureAudioModeChange() {
-      // This audio detection will not detect HLS or DASH audio-only streams because there was no reliable way to detect them at the time
-      const isSourceAudio = this.player_.currentType().substring(0, 5) === 'audio';
-      const isAudioMode = isSourceAudio || this.player_.audioPosterMode() || this.player_.audioOnlyMode();
-      if (!isAudioMode) {
-        this.show();
-        return;
-      }
-      if (this.player_.isInPictureInPicture()) {
-        this.player_.exitPictureInPicture();
-      }
-      this.hide();
-    }
-
-    /**
-     * Enables or disables button based on availability of a Picture-In-Picture mode.
-     *
-     * Enabled if
-     * - `player.options().enableDocumentPictureInPicture` is true and
-     *   window.documentPictureInPicture is available; or
-     * - `player.disablePictureInPicture()` is false and
-     *   element.requestPictureInPicture is available
-     */
-    handlePictureInPictureEnabledChange() {
-      if (document.pictureInPictureEnabled && this.player_.disablePictureInPicture() === false || this.player_.options_.enableDocumentPictureInPicture && 'documentPictureInPicture' in window) {
-        this.enable();
-      } else {
-        this.disable();
-      }
-    }
-
-    /**
-     * Handles enterpictureinpicture and leavepictureinpicture on the player and change control text accordingly.
-     *
-     * @param {Event} [event]
-     *        The {@link Player#enterpictureinpicture} or {@link Player#leavepictureinpicture} event that caused this function to be
-     *        called.
-     *
-     * @listens Player#enterpictureinpicture
-     * @listens Player#leavepictureinpicture
-     */
-    handlePictureInPictureChange(event) {
-      if (this.player_.isInPictureInPicture()) {
-        this.setIcon('picture-in-picture-exit');
-        this.controlText('Exit Picture-in-Picture');
-      } else {
-        this.setIcon('picture-in-picture-enter');
-        this.controlText('Picture-in-Picture');
-      }
-      this.handlePictureInPictureEnabledChange();
-    }
-
-    /**
-     * This gets called when an `PictureInPictureToggle` is "clicked". See
-     * {@link ClickableComponent} for more detailed information on what a click can be.
-     *
-     * @param {Event} [event]
-     *        The `keydown`, `tap`, or `click` event that caused this function to be
-     *        called.
-     *
-     * @listens tap
-     * @listens click
-     */
-    handleClick(event) {
-      if (!this.player_.isInPictureInPicture()) {
-        this.player_.requestPictureInPicture();
-      } else {
-        this.player_.exitPictureInPicture();
-      }
-    }
-
-    /**
-     * Show the `Component`s element if it is hidden by removing the
-     * 'vjs-hidden' class name from it only in browsers that support the Picture-in-Picture API.
-     */
-    show() {
-      // Does not allow to display the pictureInPictureToggle in browsers that do not support the Picture-in-Picture API, e.g. Firefox.
-      if (typeof document.exitPictureInPicture !== 'function') {
-        return;
-      }
-      super.show();
-    }
-  }
-
-  /**
-   * The text that should display over the `PictureInPictureToggle`s controls. Added for localization.
-   *
-   * @type {string}
-   * @protected
-   */
-  PictureInPictureToggle.prototype.controlText_ = 'Picture-in-Picture';
-  Component$1.registerComponent('PictureInPictureToggle', PictureInPictureToggle);
-
-  /**
-   * @file fullscreen-toggle.js
-   */
-
-  /**
-   * Toggle fullscreen video
-   *
-   * @extends Button
-   */
-  class FullscreenToggle extends Button {
-    /**
-     * Creates an instance of this class.
-     *
-     * @param { import('./player').default } player
-     *        The `Player` that this class should be attached to.
-     *
-     * @param {Object} [options]
-     *        The key/value store of player options.
-     */
-    constructor(player, options) {
-      super(player, options);
-      this.setIcon('fullscreen-enter');
-      this.on(player, 'fullscreenchange', e => this.handleFullscreenChange(e));
-      if (document[player.fsApi_.fullscreenEnabled] === false) {
-        this.disable();
-      }
-    }
-
-    /**
-     * Builds the default DOM `className`.
-     *
-     * @return {string}
-     *         The DOM `className` for this object.
-     */
-    buildCSSClass() {
-      return `vjs-fullscreen-control ${super.buildCSSClass()}`;
-    }
-
-    /**
-     * Handles fullscreenchange on the player and change control text accordingly.
-     *
-     * @param {Event} [event]
-     *        The {@link Player#fullscreenchange} event that caused this function to be
-     *        called.
-     *
-     * @listens Player#fullscreenchange
-     */
-    handleFullscreenChange(event) {
-      if (this.player_.isFullscreen()) {
-        this.controlText('Exit Fullscreen');
-        this.setIcon('fullscreen-exit');
-      } else {
-        this.controlText('Fullscreen');
-        this.setIcon('fullscreen-enter');
-      }
-    }
-
-    /**
-     * This gets called when an `FullscreenToggle` is "clicked". See
-     * {@link ClickableComponent} for more detailed information on what a click can be.
-     *
-     * @param {Event} [event]
-     *        The `keydown`, `tap`, or `click` event that caused this function to be
-     *        called.
-     *
-     * @listens tap
-     * @listens click
-     */
-    handleClick(event) {
-      if (!this.player_.isFullscreen()) {
-        this.player_.requestFullscreen();
-      } else {
-        this.player_.exitFullscreen();
-      }
-    }
-  }
-
-  /**
-   * The text that should display over the `FullscreenToggle`s controls. Added for localization.
-   *
-   * @type {string}
-   * @protected
-   */
-  FullscreenToggle.prototype.controlText_ = 'Fullscreen';
-  Component$1.registerComponent('FullscreenToggle', FullscreenToggle);
-
-  /**
-   * Check if volume control is supported and if it isn't hide the
-   * `Component` that was passed  using the `vjs-hidden` class.
-   *
-   * @param { import('../../component').default } self
-   *        The component that should be hidden if volume is unsupported
-   *
-   * @param { import('../../player').default } player
-   *        A reference to the player
-   *
-   * @private
-   */
-  const checkVolumeSupport = function (self, player) {
-    // hide volume controls when they're not supported by the current tech
-    if (player.tech_ && !player.tech_.featuresVolumeControl) {
-      self.addClass('vjs-hidden');
-    }
-    self.on(player, 'loadstart', function () {
-      if (!player.tech_.featuresVolumeControl) {
-        self.addClass('vjs-hidden');
-      } else {
-        self.removeClass('vjs-hidden');
-      }
-    });
-  };
-
-  /**
-   * @file volume-level.js
-   */
-
-  /**
-   * Shows volume level
-   *
-   * @extends Component
-   */
-  class VolumeLevel extends Component$1 {
-    /**
-     * Create the `Component`'s DOM element
-     *
-     * @return {Element}
-     *         The element that was created.
-     */
-    createEl() {
-      const el = super.createEl('div', {
-        className: 'vjs-volume-level'
-      });
-      this.setIcon('circle', el);
-      el.appendChild(super.createEl('span', {
-        className: 'vjs-control-text'
-      }));
-      return el;
-    }
-  }
-  Component$1.registerComponent('VolumeLevel', VolumeLevel);
-
-  /**
-   * @file volume-level-tooltip.js
-   */
-
-  /**
-   * Volume level tooltips display a volume above or side by side the volume bar.
-   *
-   * @extends Component
-   */
-  class VolumeLevelTooltip extends Component$1 {
-    /**
-     * Creates an instance of this class.
-     *
-     * @param { import('../../player').default } player
-     *        The {@link Player} that this class should be attached to.
-     *
-     * @param {Object} [options]
-     *        The key/value store of player options.
-     */
-    constructor(player, options) {
-      super(player, options);
-      this.update = throttle(bind_(this, this.update), UPDATE_REFRESH_INTERVAL);
-    }
-
-    /**
-     * Create the volume tooltip DOM element
-     *
-     * @return {Element}
-     *         The element that was created.
-     */
-    createEl() {
-      return super.createEl('div', {
-        className: 'vjs-volume-tooltip'
-      }, {
-        'aria-hidden': 'true'
-      });
-    }
-
-    /**
-     * Updates the position of the tooltip relative to the `VolumeBar` and
-     * its content text.
-     *
-     * @param {Object} rangeBarRect
-     *        The `ClientRect` for the {@link VolumeBar} element.
-     *
-     * @param {number} rangeBarPoint
-     *        A number from 0 to 1, representing a horizontal/vertical reference point
-     *        from the left edge of the {@link VolumeBar}
-     *
-     * @param {boolean} vertical
-     *        Referees to the Volume control position
-     *        in the control bar{@link VolumeControl}
-     *
-     */
-    update(rangeBarRect, rangeBarPoint, vertical, content) {
-      if (!vertical) {
-        const tooltipRect = getBoundingClientRect(this.el_);
-        const playerRect = getBoundingClientRect(this.player_.el());
-        const volumeBarPointPx = rangeBarRect.width * rangeBarPoint;
-        if (!playerRect || !tooltipRect) {
-          return;
-        }
-        const spaceLeftOfPoint = rangeBarRect.left - playerRect.left + volumeBarPointPx;
-        const spaceRightOfPoint = rangeBarRect.width - volumeBarPointPx + (playerRect.right - rangeBarRect.right);
-        let pullTooltipBy = tooltipRect.width / 2;
-        if (spaceLeftOfPoint < pullTooltipBy) {
-          pullTooltipBy += pullTooltipBy - spaceLeftOfPoint;
-        } else if (spaceRightOfPoint < pullTooltipBy) {
-          pullTooltipBy = spaceRightOfPoint;
-        }
-        if (pullTooltipBy < 0) {
-          pullTooltipBy = 0;
-        } else if (pullTooltipBy > tooltipRect.width) {
-          pullTooltipBy = tooltipRect.width;
-        }
-        this.el_.style.right = `-${pullTooltipBy}px`;
-      }
-      this.write(`${content}%`);
-    }
-
-    /**
-     * Write the volume to the tooltip DOM element.
-     *
-     * @param {string} content
-     *        The formatted volume for the tooltip.
-     */
-    write(content) {
-      textContent(this.el_, content);
-    }
-
-    /**
-     * Updates the position of the volume tooltip relative to the `VolumeBar`.
-     *
-     * @param {Object} rangeBarRect
-     *        The `ClientRect` for the {@link VolumeBar} element.
-     *
-     * @param {number} rangeBarPoint
-     *        A number from 0 to 1, representing a horizontal/vertical reference point
-     *        from the left edge of the {@link VolumeBar}
-     *
-     * @param {boolean} vertical
-     *        Referees to the Volume control position
-     *        in the control bar{@link VolumeControl}
-     *
-     * @param {number} volume
-     *        The volume level to update the tooltip to
-     *
-     * @param {Function} cb
-     *        A function that will be called during the request animation frame
-     *        for tooltips that need to do additional animations from the default
-     */
-    updateVolume(rangeBarRect, rangeBarPoint, vertical, volume, cb) {
-      this.requestNamedAnimationFrame('VolumeLevelTooltip#updateVolume', () => {
-        this.update(rangeBarRect, rangeBarPoint, vertical, volume.toFixed(0));
-        if (cb) {
-          cb();
-        }
-      });
-    }
-  }
-  Component$1.registerComponent('VolumeLevelTooltip', VolumeLevelTooltip);
-
-  /**
-   * @file mouse-volume-level-display.js
-   */
-
-  /**
-   * The {@link MouseVolumeLevelDisplay} component tracks mouse movement over the
-   * {@link VolumeControl}. It displays an indicator and a {@link VolumeLevelTooltip}
-   * indicating the volume level which is represented by a given point in the
-   * {@link VolumeBar}.
-   *
-   * @extends Component
-   */
-  class MouseVolumeLevelDisplay extends Component$1 {
-    /**
-     * Creates an instance of this class.
-     *
-     * @param { import('../../player').default } player
-     *        The {@link Player} that this class should be attached to.
-     *
-     * @param {Object} [options]
-     *        The key/value store of player options.
-     */
-    constructor(player, options) {
-      super(player, options);
-      this.update = throttle(bind_(this, this.update), UPDATE_REFRESH_INTERVAL);
-    }
-
-    /**
-     * Create the DOM element for this class.
-     *
-     * @return {Element}
-     *         The element that was created.
-     */
-    createEl() {
-      return super.createEl('div', {
-        className: 'vjs-mouse-display'
-      });
-    }
-
-    /**
-     * Enquires updates to its own DOM as well as the DOM of its
-     * {@link VolumeLevelTooltip} child.
-     *
-     * @param {Object} rangeBarRect
-     *        The `ClientRect` for the {@link VolumeBar} element.
-     *
-     * @param {number} rangeBarPoint
-     *        A number from 0 to 1, representing a horizontal/vertical reference point
-     *        from the left edge of the {@link VolumeBar}
-     *
-     * @param {boolean} vertical
-     *        Referees to the Volume control position
-     *        in the control bar{@link VolumeControl}
-     *
-     */
-    update(rangeBarRect, rangeBarPoint, vertical) {
-      const volume = 100 * rangeBarPoint;
-      this.getChild('volumeLevelTooltip').updateVolume(rangeBarRect, rangeBarPoint, vertical, volume, () => {
-        if (vertical) {
-          this.el_.style.bottom = `${rangeBarRect.height * rangeBarPoint}px`;
-        } else {
-          this.el_.style.left = `${rangeBarRect.width * rangeBarPoint}px`;
-        }
-      });
-    }
-  }
-
-  /**
-   * Default options for `MouseVolumeLevelDisplay`
-   *
-   * @type {Object}
-   * @private
-   */
-  MouseVolumeLevelDisplay.prototype.options_ = {
-    children: ['volumeLevelTooltip']
-  };
-  Component$1.registerComponent('MouseVolumeLevelDisplay', MouseVolumeLevelDisplay);
-
-  /**
-   * @file volume-bar.js
-   */
-
-  /**
-   * The bar that contains the volume level and can be clicked on to adjust the level
-   *
-   * @extends Slider
-   */
-  class VolumeBar extends Slider {
-    /**
-     * Creates an instance of this class.
-     *
-     * @param { import('../../player').default } player
-     *        The `Player` that this class should be attached to.
-     *
-     * @param {Object} [options]
-     *        The key/value store of player options.
-     */
-    constructor(player, options) {
-      super(player, options);
-      this.on('slideractive', e => this.updateLastVolume_(e));
-      this.on(player, 'volumechange', e => this.updateARIAAttributes(e));
-      player.ready(() => this.updateARIAAttributes());
-    }
-
-    /**
-     * Create the `Component`'s DOM element
-     *
-     * @return {Element}
-     *         The element that was created.
-     */
-    createEl() {
-      return super.createEl('div', {
-        className: 'vjs-volume-bar vjs-slider-bar'
-      }, {
-        'aria-label': this.localize('Volume Level'),
-        'aria-live': 'polite'
-      });
-    }
-
-    /**
-     * Handle mouse down on volume bar
-     *
-     * @param {Event} event
-     *        The `mousedown` event that caused this to run.
-     *
-     * @listens mousedown
-     */
-    handleMouseDown(event) {
-      if (!isSingleLeftClick(event)) {
-        return;
-      }
-      super.handleMouseDown(event);
-    }
-
-    /**
-     * Handle movement events on the {@link VolumeMenuButton}.
-     *
-     * @param {Event} event
-     *        The event that caused this function to run.
-     *
-     * @listens mousemove
-     */
-    handleMouseMove(event) {
-      const mouseVolumeLevelDisplay = this.getChild('mouseVolumeLevelDisplay');
-      if (mouseVolumeLevelDisplay) {
-        const volumeBarEl = this.el();
-        const volumeBarRect = getBoundingClientRect(volumeBarEl);
-        const vertical = this.vertical();
-        let volumeBarPoint = getPointerPosition(volumeBarEl, event);
-        volumeBarPoint = vertical ? volumeBarPoint.y : volumeBarPoint.x;
-        // The default skin has a gap on either side of the `VolumeBar`. This means
-        // that it's possible to trigger this behavior outside the boundaries of
-        // the `VolumeBar`. This ensures we stay within it at all times.
-        volumeBarPoint = clamp(volumeBarPoint, 0, 1);
-        mouseVolumeLevelDisplay.update(volumeBarRect, volumeBarPoint, vertical);
-      }
-      if (!isSingleLeftClick(event)) {
-        return;
-      }
-      this.checkMuted();
-      this.player_.volume(this.calculateDistance(event));
-    }
-
-    /**
-     * If the player is muted unmute it.
-     */
-    checkMuted() {
-      if (this.player_.muted()) {
-        this.player_.muted(false);
-      }
-    }
-
-    /**
-     * Get percent of volume level
-     *
-     * @return {number}
-     *         Volume level percent as a decimal number.
-     */
-    getPercent() {
-      if (this.player_.muted()) {
-        return 0;
-      }
-      return this.player_.volume();
-    }
-
-    /**
-     * Increase volume level for keyboard users
-     */
-    stepForward() {
-      this.checkMuted();
-      this.player_.volume(this.player_.volume() + 0.1);
-    }
-
-    /**
-     * Decrease volume level for keyboard users
-     */
-    stepBack() {
-      this.checkMuted();
-      this.player_.volume(this.player_.volume() - 0.1);
-    }
-
-    /**
-     * Update ARIA accessibility attributes
-     *
-     * @param {Event} [event]
-     *        The `volumechange` event that caused this function to run.
-     *
-     * @listens Player#volumechange
-     */
-    updateARIAAttributes(event) {
-      const ariaValue = this.player_.muted() ? 0 : this.volumeAsPercentage_();
-      this.el_.setAttribute('aria-valuenow', ariaValue);
-      this.el_.setAttribute('aria-valuetext', ariaValue + '%');
-    }
-
-    /**
-     * Returns the current value of the player volume as a percentage
-     *
-     * @private
-     */
-    volumeAsPercentage_() {
-      return Math.round(this.player_.volume() * 100);
-    }
-
-    /**
-     * When user starts dragging the VolumeBar, store the volume and listen for
-     * the end of the drag. When the drag ends, if the volume was set to zero,
-     * set lastVolume to the stored volume.
-     *
-     * @listens slideractive
-     * @private
-     */
-    updateLastVolume_() {
-      const volumeBeforeDrag = this.player_.volume();
-      this.one('sliderinactive', () => {
-        if (this.player_.volume() === 0) {
-          this.player_.lastVolume_(volumeBeforeDrag);
-        }
-      });
-    }
-  }
-
-  /**
-   * Default options for the `VolumeBar`
-   *
-   * @type {Object}
-   * @private
-   */
-  VolumeBar.prototype.options_ = {
-    children: ['volumeLevel'],
-    barName: 'volumeLevel'
-  };
-
-  // MouseVolumeLevelDisplay tooltip should not be added to a player on mobile devices
-  if (!IS_IOS && !IS_ANDROID) {
-    VolumeBar.prototype.options_.children.splice(0, 0, 'mouseVolumeLevelDisplay');
-  }
-
-  /**
-   * Call the update event for this Slider when this event happens on the player.
-   *
-   * @type {string}
-   */
-  VolumeBar.prototype.playerEvent = 'volumechange';
-  Component$1.registerComponent('VolumeBar', VolumeBar);
-
-  /**
-   * @file volume-control.js
-   */
-
-  /**
-   * The component for controlling the volume level
-   *
-   * @extends Component
-   */
-  class VolumeControl extends Component$1 {
-    /**
-     * Creates an instance of this class.
-     *
-     * @param { import('../../player').default } player
-     *        The `Player` that this class should be attached to.
-     *
-     * @param {Object} [options={}]
-     *        The key/value store of player options.
-     */
-    constructor(player, options = {}) {
-      options.vertical = options.vertical || false;
-
-      // Pass the vertical option down to the VolumeBar if
-      // the VolumeBar is turned on.
-      if (typeof options.volumeBar === 'undefined' || isPlain(options.volumeBar)) {
-        options.volumeBar = options.volumeBar || {};
-        options.volumeBar.vertical = options.vertical;
-      }
-      super(player, options);
-
-      // hide this control if volume support is missing
-      checkVolumeSupport(this, player);
-      this.throttledHandleMouseMove = throttle(bind_(this, this.handleMouseMove), UPDATE_REFRESH_INTERVAL);
-      this.handleMouseUpHandler_ = e => this.handleMouseUp(e);
-      this.on('mousedown', e => this.handleMouseDown(e));
-      this.on('touchstart', e => this.handleMouseDown(e));
-      this.on('mousemove', e => this.handleMouseMove(e));
-
-      // while the slider is active (the mouse has been pressed down and
-      // is dragging) or in focus we do not want to hide the VolumeBar
-      this.on(this.volumeBar, ['focus', 'slideractive'], () => {
-        this.volumeBar.addClass('vjs-slider-active');
-        this.addClass('vjs-slider-active');
-        this.trigger('slideractive');
-      });
-      this.on(this.volumeBar, ['blur', 'sliderinactive'], () => {
-        this.volumeBar.removeClass('vjs-slider-active');
-        this.removeClass('vjs-slider-active');
-        this.trigger('sliderinactive');
-      });
-    }
-
-    /**
-     * Create the `Component`'s DOM element
-     *
-     * @return {Element}
-     *         The element that was created.
-     */
-    createEl() {
-      let orientationClass = 'vjs-volume-horizontal';
-      if (this.options_.vertical) {
-        orientationClass = 'vjs-volume-vertical';
-      }
-      return super.createEl('div', {
-        className: `vjs-volume-control vjs-control ${orientationClass}`
-      });
-    }
-
-    /**
-     * Handle `mousedown` or `touchstart` events on the `VolumeControl`.
-     *
-     * @param {Event} event
-     *        `mousedown` or `touchstart` event that triggered this function
-     *
-     * @listens mousedown
-     * @listens touchstart
-     */
-    handleMouseDown(event) {
-      const doc = this.el_.ownerDocument;
-      this.on(doc, 'mousemove', this.throttledHandleMouseMove);
-      this.on(doc, 'touchmove', this.throttledHandleMouseMove);
-      this.on(doc, 'mouseup', this.handleMouseUpHandler_);
-      this.on(doc, 'touchend', this.handleMouseUpHandler_);
-    }
-
-    /**
-     * Handle `mouseup` or `touchend` events on the `VolumeControl`.
-     *
-     * @param {Event} event
-     *        `mouseup` or `touchend` event that triggered this function.
-     *
-     * @listens touchend
-     * @listens mouseup
-     */
-    handleMouseUp(event) {
-      const doc = this.el_.ownerDocument;
-      this.off(doc, 'mousemove', this.throttledHandleMouseMove);
-      this.off(doc, 'touchmove', this.throttledHandleMouseMove);
-      this.off(doc, 'mouseup', this.handleMouseUpHandler_);
-      this.off(doc, 'touchend', this.handleMouseUpHandler_);
-    }
-
-    /**
-     * Handle `mousedown` or `touchstart` events on the `VolumeControl`.
-     *
-     * @param {Event} event
-     *        `mousedown` or `touchstart` event that triggered this function
-     *
-     * @listens mousedown
-     * @listens touchstart
-     */
-    handleMouseMove(event) {
-      this.volumeBar.handleMouseMove(event);
-    }
-  }
-
-  /**
-   * Default options for the `VolumeControl`
-   *
-   * @type {Object}
-   * @private
-   */
-  VolumeControl.prototype.options_ = {
-    children: ['volumeBar']
-  };
-  Component$1.registerComponent('VolumeControl', VolumeControl);
-
-  /**
-   * Check if muting volume is supported and if it isn't hide the mute toggle
-   * button.
-   *
-   * @param { import('../../component').default } self
-   *        A reference to the mute toggle button
-   *
-   * @param { import('../../player').default } player
-   *        A reference to the player
-   *
-   * @private
-   */
-  const checkMuteSupport = function (self, player) {
-    // hide mute toggle button if it's not supported by the current tech
-    if (player.tech_ && !player.tech_.featuresMuteControl) {
-      self.addClass('vjs-hidden');
-    }
-    self.on(player, 'loadstart', function () {
-      if (!player.tech_.featuresMuteControl) {
-        self.addClass('vjs-hidden');
-      } else {
-        self.removeClass('vjs-hidden');
-      }
-    });
-  };
-
-  /**
-   * @file mute-toggle.js
-   */
-
-  /**
-   * A button component for muting the audio.
-   *
-   * @extends Button
-   */
-  class MuteToggle extends Button {
-    /**
-     * Creates an instance of this class.
-     *
-     * @param { import('./player').default } player
-     *        The `Player` that this class should be attached to.
-     *
-     * @param {Object} [options]
-     *        The key/value store of player options.
-     */
-    constructor(player, options) {
-      super(player, options);
-
-      // hide this control if volume support is missing
-      checkMuteSupport(this, player);
-      this.on(player, ['loadstart', 'volumechange'], e => this.update(e));
-    }
-
-    /**
-     * Builds the default DOM `className`.
-     *
-     * @return {string}
-     *         The DOM `className` for this object.
-     */
-    buildCSSClass() {
-      return `vjs-mute-control ${super.buildCSSClass()}`;
-    }
-
-    /**
-     * This gets called when an `MuteToggle` is "clicked". See
-     * {@link ClickableComponent} for more detailed information on what a click can be.
-     *
-     * @param {Event} [event]
-     *        The `keydown`, `tap`, or `click` event that caused this function to be
-     *        called.
-     *
-     * @listens tap
-     * @listens click
-     */
-    handleClick(event) {
-      const vol = this.player_.volume();
-      const lastVolume = this.player_.lastVolume_();
-      if (vol === 0) {
-        const volumeToSet = lastVolume < 0.1 ? 0.1 : lastVolume;
-        this.player_.volume(volumeToSet);
-        this.player_.muted(false);
-      } else {
-        this.player_.muted(this.player_.muted() ? false : true);
-      }
-    }
-
-    /**
-     * Update the `MuteToggle` button based on the state of `volume` and `muted`
-     * on the player.
-     *
-     * @param {Event} [event]
-     *        The {@link Player#loadstart} event if this function was called
-     *        through an event.
-     *
-     * @listens Player#loadstart
-     * @listens Player#volumechange
-     */
-    update(event) {
-      this.updateIcon_();
-      this.updateControlText_();
-    }
-
-    /**
-     * Update the appearance of the `MuteToggle` icon.
-     *
-     * Possible states (given `level` variable below):
-     * - 0: crossed out
-     * - 1: zero bars of volume
-     * - 2: one bar of volume
-     * - 3: two bars of volume
-     *
-     * @private
-     */
-    updateIcon_() {
-      const vol = this.player_.volume();
-      let level = 3;
-      this.setIcon('volume-high');
-
-      // in iOS when a player is loaded with muted attribute
-      // and volume is changed with a native mute button
-      // we want to make sure muted state is updated
-      if (IS_IOS && this.player_.tech_ && this.player_.tech_.el_) {
-        this.player_.muted(this.player_.tech_.el_.muted);
-      }
-      if (vol === 0 || this.player_.muted()) {
-        this.setIcon('volume-mute');
-        level = 0;
-      } else if (vol < 0.33) {
-        this.setIcon('volume-low');
-        level = 1;
-      } else if (vol < 0.67) {
-        this.setIcon('volume-medium');
-        level = 2;
-      }
-      removeClass(this.el_, [0, 1, 2, 3].reduce((str, i) => str + `${i ? ' ' : ''}vjs-vol-${i}`, ''));
-      addClass(this.el_, `vjs-vol-${level}`);
-    }
-
-    /**
-     * If `muted` has changed on the player, update the control text
-     * (`title` attribute on `vjs-mute-control` element and content of
-     * `vjs-control-text` element).
-     *
-     * @private
-     */
-    updateControlText_() {
-      const soundOff = this.player_.muted() || this.player_.volume() === 0;
-      const text = soundOff ? 'Unmute' : 'Mute';
-      if (this.controlText() !== text) {
-        this.controlText(text);
-      }
-    }
-  }
-
-  /**
-   * The text that should display over the `MuteToggle`s controls. Added for localization.
-   *
-   * @type {string}
-   * @protected
-   */
-  MuteToggle.prototype.controlText_ = 'Mute';
-  Component$1.registerComponent('MuteToggle', MuteToggle);
-
-  /**
-   * @file volume-control.js
-   */
-
-  /**
-   * A Component to contain the MuteToggle and VolumeControl so that
-   * they can work together.
-   *
-   * @extends Component
-   */
-  class VolumePanel extends Component$1 {
-    /**
-     * Creates an instance of this class.
-     *
-     * @param { import('./player').default } player
-     *        The `Player` that this class should be attached to.
-     *
-     * @param {Object} [options={}]
-     *        The key/value store of player options.
-     */
-    constructor(player, options = {}) {
-      if (typeof options.inline !== 'undefined') {
-        options.inline = options.inline;
-      } else {
-        options.inline = true;
-      }
-
-      // pass the inline option down to the VolumeControl as vertical if
-      // the VolumeControl is on.
-      if (typeof options.volumeControl === 'undefined' || isPlain(options.volumeControl)) {
-        options.volumeControl = options.volumeControl || {};
-        options.volumeControl.vertical = !options.inline;
-      }
-      super(player, options);
-
-      // this handler is used by mouse handler methods below
-      this.handleKeyPressHandler_ = e => this.handleKeyPress(e);
-      this.on(player, ['loadstart'], e => this.volumePanelState_(e));
-      this.on(this.muteToggle, 'keyup', e => this.handleKeyPress(e));
-      this.on(this.volumeControl, 'keyup', e => this.handleVolumeControlKeyUp(e));
-      this.on('keydown', e => this.handleKeyPress(e));
-      this.on('mouseover', e => this.handleMouseOver(e));
-      this.on('mouseout', e => this.handleMouseOut(e));
-
-      // while the slider is active (the mouse has been pressed down and
-      // is dragging) we do not want to hide the VolumeBar
-      this.on(this.volumeControl, ['slideractive'], this.sliderActive_);
-      this.on(this.volumeControl, ['sliderinactive'], this.sliderInactive_);
-    }
-
-    /**
-     * Add vjs-slider-active class to the VolumePanel
-     *
-     * @listens VolumeControl#slideractive
-     * @private
-     */
-    sliderActive_() {
-      this.addClass('vjs-slider-active');
-    }
-
-    /**
-     * Removes vjs-slider-active class to the VolumePanel
-     *
-     * @listens VolumeControl#sliderinactive
-     * @private
-     */
-    sliderInactive_() {
-      this.removeClass('vjs-slider-active');
-    }
-
-    /**
-     * Adds vjs-hidden or vjs-mute-toggle-only to the VolumePanel
-     * depending on MuteToggle and VolumeControl state
-     *
-     * @listens Player#loadstart
-     * @private
-     */
-    volumePanelState_() {
-      // hide volume panel if neither volume control or mute toggle
-      // are displayed
-      if (this.volumeControl.hasClass('vjs-hidden') && this.muteToggle.hasClass('vjs-hidden')) {
-        this.addClass('vjs-hidden');
-      }
-
-      // if only mute toggle is visible we don't want
-      // volume panel expanding when hovered or active
-      if (this.volumeControl.hasClass('vjs-hidden') && !this.muteToggle.hasClass('vjs-hidden')) {
-        this.addClass('vjs-mute-toggle-only');
-      }
-    }
-
-    /**
-     * Create the `Component`'s DOM element
-     *
-     * @return {Element}
-     *         The element that was created.
-     */
-    createEl() {
-      let orientationClass = 'vjs-volume-panel-horizontal';
-      if (!this.options_.inline) {
-        orientationClass = 'vjs-volume-panel-vertical';
-      }
-      return super.createEl('div', {
-        className: `vjs-volume-panel vjs-control ${orientationClass}`
-      });
-    }
-
-    /**
-     * Dispose of the `volume-panel` and all child components.
-     */
-    dispose() {
-      this.handleMouseOut();
-      super.dispose();
-    }
-
-    /**
-     * Handles `keyup` events on the `VolumeControl`, looking for ESC, which closes
-     * the volume panel and sets focus on `MuteToggle`.
-     *
-     * @param {Event} event
-     *        The `keyup` event that caused this function to be called.
-     *
-     * @listens keyup
-     */
-    handleVolumeControlKeyUp(event) {
-      if (keycode.isEventKey(event, 'Esc')) {
-        this.muteToggle.focus();
-      }
-    }
-
-    /**
-     * This gets called when a `VolumePanel` gains hover via a `mouseover` event.
-     * Turns on listening for `mouseover` event. When they happen it
-     * calls `this.handleMouseOver`.
-     *
-     * @param {Event} event
-     *        The `mouseover` event that caused this function to be called.
-     *
-     * @listens mouseover
-     */
-    handleMouseOver(event) {
-      this.addClass('vjs-hover');
-      on(document, 'keyup', this.handleKeyPressHandler_);
-    }
-
-    /**
-     * This gets called when a `VolumePanel` gains hover via a `mouseout` event.
-     * Turns on listening for `mouseout` event. When they happen it
-     * calls `this.handleMouseOut`.
-     *
-     * @param {Event} event
-     *        The `mouseout` event that caused this function to be called.
-     *
-     * @listens mouseout
-     */
-    handleMouseOut(event) {
-      this.removeClass('vjs-hover');
-      off(document, 'keyup', this.handleKeyPressHandler_);
-    }
-
-    /**
-     * Handles `keyup` event on the document or `keydown` event on the `VolumePanel`,
-     * looking for ESC, which hides the `VolumeControl`.
-     *
-     * @param {Event} event
-     *        The keypress that triggered this event.
-     *
-     * @listens keydown | keyup
-     */
-    handleKeyPress(event) {
-      if (keycode.isEventKey(event, 'Esc')) {
-        this.handleMouseOut();
-      }
-    }
-  }
-
-  /**
-   * Default options for the `VolumeControl`
-   *
-   * @type {Object}
-   * @private
-   */
-  VolumePanel.prototype.options_ = {
-    children: ['muteToggle', 'volumeControl']
-  };
-  Component$1.registerComponent('VolumePanel', VolumePanel);
-
-  /**
-   * Button to skip forward a configurable amount of time
-   * through a video. Renders in the control bar.
-   *
-   * e.g. options: {controlBar: {skipButtons: forward: 5}}
-   *
-   * @extends Button
-   */
-  class SkipForward extends Button {
-    constructor(player, options) {
-      super(player, options);
-      this.validOptions = [5, 10, 30];
-      this.skipTime = this.getSkipForwardTime();
-      if (this.skipTime && this.validOptions.includes(this.skipTime)) {
-        this.setIcon(`forward-${this.skipTime}`);
-        this.controlText(this.localize('Skip forward {1} seconds', [this.skipTime.toLocaleString(player.language())]));
-        this.show();
-      } else {
-        this.hide();
-      }
-    }
-    getSkipForwardTime() {
-      const playerOptions = this.options_.playerOptions;
-      return playerOptions.controlBar && playerOptions.controlBar.skipButtons && playerOptions.controlBar.skipButtons.forward;
-    }
-    buildCSSClass() {
-      return `vjs-skip-forward-${this.getSkipForwardTime()} ${super.buildCSSClass()}`;
-    }
-
-    /**
-     * On click, skips forward in the duration/seekable range by a configurable amount of seconds.
-     * If the time left in the duration/seekable range is less than the configured 'skip forward' time,
-     * skips to end of duration/seekable range.
-     *
-     * Handle a click on a `SkipForward` button
-     *
-     * @param {EventTarget~Event} event
-     *        The `click` event that caused this function
-     *        to be called
-     */
-    handleClick(event) {
-      if (isNaN(this.player_.duration())) {
-        return;
-      }
-      const currentVideoTime = this.player_.currentTime();
-      const liveTracker = this.player_.liveTracker;
-      const duration = liveTracker && liveTracker.isLive() ? liveTracker.seekableEnd() : this.player_.duration();
-      let newTime;
-      if (currentVideoTime + this.skipTime <= duration) {
-        newTime = currentVideoTime + this.skipTime;
-      } else {
-        newTime = duration;
-      }
-      this.player_.currentTime(newTime);
-    }
-
-    /**
-     * Update control text on languagechange
-     */
-    handleLanguagechange() {
-      this.controlText(this.localize('Skip forward {1} seconds', [this.skipTime]));
-    }
-  }
-  SkipForward.prototype.controlText_ = 'Skip Forward';
-  Component$1.registerComponent('SkipForward', SkipForward);
-
-  /**
-   * Button to skip backward a configurable amount of time
-   * through a video. Renders in the control bar.
-   *
-   *  * e.g. options: {controlBar: {skipButtons: backward: 5}}
-   *
-   * @extends Button
-   */
-  class SkipBackward extends Button {
-    constructor(player, options) {
-      super(player, options);
-      this.validOptions = [5, 10, 30];
-      this.skipTime = this.getSkipBackwardTime();
-      if (this.skipTime && this.validOptions.includes(this.skipTime)) {
-        this.setIcon(`replay-${this.skipTime}`);
-        this.controlText(this.localize('Skip backward {1} seconds', [this.skipTime.toLocaleString(player.language())]));
-        this.show();
-      } else {
-        this.hide();
-      }
-    }
-    getSkipBackwardTime() {
-      const playerOptions = this.options_.playerOptions;
-      return playerOptions.controlBar && playerOptions.controlBar.skipButtons && playerOptions.controlBar.skipButtons.backward;
-    }
-    buildCSSClass() {
-      return `vjs-skip-backward-${this.getSkipBackwardTime()} ${super.buildCSSClass()}`;
-    }
-
-    /**
-     * On click, skips backward in the video by a configurable amount of seconds.
-     * If the current time in the video is less than the configured 'skip backward' time,
-     * skips to beginning of video or seekable range.
-     *
-     * Handle a click on a `SkipBackward` button
-     *
-     * @param {EventTarget~Event} event
-     *        The `click` event that caused this function
-     *        to be called
-     */
-    handleClick(event) {
-      const currentVideoTime = this.player_.currentTime();
-      const liveTracker = this.player_.liveTracker;
-      const seekableStart = liveTracker && liveTracker.isLive() && liveTracker.seekableStart();
-      let newTime;
-      if (seekableStart && currentVideoTime - this.skipTime <= seekableStart) {
-        newTime = seekableStart;
-      } else if (currentVideoTime >= this.skipTime) {
-        newTime = currentVideoTime - this.skipTime;
-      } else {
-        newTime = 0;
-      }
-      this.player_.currentTime(newTime);
-    }
-
-    /**
-     * Update control text on languagechange
-     */
-    handleLanguagechange() {
-      this.controlText(this.localize('Skip backward {1} seconds', [this.skipTime]));
-    }
-  }
-  SkipBackward.prototype.controlText_ = 'Skip Backward';
-  Component$1.registerComponent('SkipBackward', SkipBackward);
-
-  /**
-   * @file menu.js
-   */
-
-  /**
-   * The Menu component is used to build popup menus, including subtitle and
-   * captions selection menus.
-   *
-   * @extends Component
-   */
-  class Menu extends Component$1 {
-    /**
-     * Create an instance of this class.
-     *
-     * @param { import('../player').default } player
-     *        the player that this component should attach to
-     *
-     * @param {Object} [options]
-     *        Object of option names and values
-     *
-     */
-    constructor(player, options) {
-      super(player, options);
-      if (options) {
-        this.menuButton_ = options.menuButton;
-      }
-      this.focusedChild_ = -1;
-      this.on('keydown', e => this.handleKeyDown(e));
-
-      // All the menu item instances share the same blur handler provided by the menu container.
-      this.boundHandleBlur_ = e => this.handleBlur(e);
-      this.boundHandleTapClick_ = e => this.handleTapClick(e);
-    }
-
-    /**
-     * Add event listeners to the {@link MenuItem}.
-     *
-     * @param {Object} component
-     *        The instance of the `MenuItem` to add listeners to.
-     *
-     */
-    addEventListenerForItem(component) {
-      if (!(component instanceof Component$1)) {
-        return;
-      }
-      this.on(component, 'blur', this.boundHandleBlur_);
-      this.on(component, ['tap', 'click'], this.boundHandleTapClick_);
-    }
-
-    /**
-     * Remove event listeners from the {@link MenuItem}.
-     *
-     * @param {Object} component
-     *        The instance of the `MenuItem` to remove listeners.
-     *
-     */
-    removeEventListenerForItem(component) {
-      if (!(component instanceof Component$1)) {
-        return;
-      }
-      this.off(component, 'blur', this.boundHandleBlur_);
-      this.off(component, ['tap', 'click'], this.boundHandleTapClick_);
-    }
-
-    /**
-     * This method will be called indirectly when the component has been added
-     * before the component adds to the new menu instance by `addItem`.
-     * In this case, the original menu instance will remove the component
-     * by calling `removeChild`.
-     *
-     * @param {Object} component
-     *        The instance of the `MenuItem`
-     */
-    removeChild(component) {
-      if (typeof component === 'string') {
-        component = this.getChild(component);
-      }
-      this.removeEventListenerForItem(component);
-      super.removeChild(component);
-    }
-
-    /**
-     * Add a {@link MenuItem} to the menu.
-     *
-     * @param {Object|string} component
-     *        The name or instance of the `MenuItem` to add.
-     *
-     */
-    addItem(component) {
-      const childComponent = this.addChild(component);
-      if (childComponent) {
-        this.addEventListenerForItem(childComponent);
-      }
-    }
-
-    /**
-     * Create the `Menu`s DOM element.
-     *
-     * @return {Element}
-     *         the element that was created
-     */
-    createEl() {
-      const contentElType = this.options_.contentElType || 'ul';
-      this.contentEl_ = createEl(contentElType, {
-        className: 'vjs-menu-content'
-      });
-      this.contentEl_.setAttribute('role', 'menu');
-      const el = super.createEl('div', {
-        append: this.contentEl_,
-        className: 'vjs-menu'
-      });
-      el.appendChild(this.contentEl_);
-
-      // Prevent clicks from bubbling up. Needed for Menu Buttons,
-      // where a click on the parent is significant
-      on(el, 'click', function (event) {
-        event.preventDefault();
-        event.stopImmediatePropagation();
-      });
-      return el;
-    }
-    dispose() {
-      this.contentEl_ = null;
-      this.boundHandleBlur_ = null;
-      this.boundHandleTapClick_ = null;
-      super.dispose();
-    }
-
-    /**
-     * Called when a `MenuItem` loses focus.
-     *
-     * @param {Event} event
-     *        The `blur` event that caused this function to be called.
-     *
-     * @listens blur
-     */
-    handleBlur(event) {
-      const relatedTarget = event.relatedTarget || document.activeElement;
-
-      // Close menu popup when a user clicks outside the menu
-      if (!this.children().some(element => {
-        return element.el() === relatedTarget;
-      })) {
-        const btn = this.menuButton_;
-        if (btn && btn.buttonPressed_ && relatedTarget !== btn.el().firstChild) {
-          btn.unpressButton();
-        }
-      }
-    }
-
-    /**
-     * Called when a `MenuItem` gets clicked or tapped.
-     *
-     * @param {Event} event
-     *        The `click` or `tap` event that caused this function to be called.
-     *
-     * @listens click,tap
-     */
-    handleTapClick(event) {
-      // Unpress the associated MenuButton, and move focus back to it
-      if (this.menuButton_) {
-        this.menuButton_.unpressButton();
-        const childComponents = this.children();
-        if (!Array.isArray(childComponents)) {
-          return;
-        }
-        const foundComponent = childComponents.filter(component => component.el() === event.target)[0];
-        if (!foundComponent) {
-          return;
-        }
-
-        // don't focus menu button if item is a caption settings item
-        // because focus will move elsewhere
-        if (foundComponent.name() !== 'CaptionSettingsMenuItem') {
-          this.menuButton_.focus();
-        }
-      }
-    }
-
-    /**
-     * Handle a `keydown` event on this menu. This listener is added in the constructor.
-     *
-     * @param {KeyboardEvent} event
-     *        A `keydown` event that happened on the menu.
-     *
-     * @listens keydown
-     */
-    handleKeyDown(event) {
-      // Left and Down Arrows
-      if (keycode.isEventKey(event, 'Left') || keycode.isEventKey(event, 'Down')) {
-        event.preventDefault();
-        event.stopPropagation();
-        this.stepForward();
-
-        // Up and Right Arrows
-      } else if (keycode.isEventKey(event, 'Right') || keycode.isEventKey(event, 'Up')) {
-        event.preventDefault();
-        event.stopPropagation();
-        this.stepBack();
-      }
-    }
-
-    /**
-     * Move to next (lower) menu item for keyboard users.
-     */
-    stepForward() {
-      let stepChild = 0;
-      if (this.focusedChild_ !== undefined) {
-        stepChild = this.focusedChild_ + 1;
-      }
-      this.focus(stepChild);
-    }
-
-    /**
-     * Move to previous (higher) menu item for keyboard users.
-     */
-    stepBack() {
-      let stepChild = 0;
-      if (this.focusedChild_ !== undefined) {
-        stepChild = this.focusedChild_ - 1;
-      }
-      this.focus(stepChild);
-    }
-
-    /**
-     * Set focus on a {@link MenuItem} in the `Menu`.
-     *
-     * @param {Object|string} [item=0]
-     *        Index of child item set focus on.
-     */
-    focus(item = 0) {
-      const children = this.children().slice();
-      const haveTitle = children.length && children[0].hasClass('vjs-menu-title');
-      if (haveTitle) {
-        children.shift();
-      }
-      if (children.length > 0) {
-        if (item < 0) {
-          item = 0;
-        } else if (item >= children.length) {
-          item = children.length - 1;
-        }
-        this.focusedChild_ = item;
-        children[item].el_.focus();
-      }
-    }
-  }
-  Component$1.registerComponent('Menu', Menu);
-
-  /**
-   * @file menu-button.js
-   */
-
-  /**
-   * A `MenuButton` class for any popup {@link Menu}.
-   *
-   * @extends Component
-   */
-  class MenuButton extends Component$1 {
-    /**
-     * Creates an instance of this class.
-     *
-     * @param { import('../player').default } player
-     *        The `Player` that this class should be attached to.
-     *
-     * @param {Object} [options={}]
-     *        The key/value store of player options.
-     */
-    constructor(player, options = {}) {
-      super(player, options);
-      this.menuButton_ = new Button(player, options);
-      this.menuButton_.controlText(this.controlText_);
-      this.menuButton_.el_.setAttribute('aria-haspopup', 'true');
-
-      // Add buildCSSClass values to the button, not the wrapper
-      const buttonClass = Button.prototype.buildCSSClass();
-      this.menuButton_.el_.className = this.buildCSSClass() + ' ' + buttonClass;
-      this.menuButton_.removeClass('vjs-control');
-      this.addChild(this.menuButton_);
-      this.update();
-      this.enabled_ = true;
-      const handleClick = e => this.handleClick(e);
-      this.handleMenuKeyUp_ = e => this.handleMenuKeyUp(e);
-      this.on(this.menuButton_, 'tap', handleClick);
-      this.on(this.menuButton_, 'click', handleClick);
-      this.on(this.menuButton_, 'keydown', e => this.handleKeyDown(e));
-      this.on(this.menuButton_, 'mouseenter', () => {
-        this.addClass('vjs-hover');
-        this.menu.show();
-        on(document, 'keyup', this.handleMenuKeyUp_);
-      });
-      this.on('mouseleave', e => this.handleMouseLeave(e));
-      this.on('keydown', e => this.handleSubmenuKeyDown(e));
-    }
-
-    /**
-     * Update the menu based on the current state of its items.
-     */
-    update() {
-      const menu = this.createMenu();
-      if (this.menu) {
-        this.menu.dispose();
-        this.removeChild(this.menu);
-      }
-      this.menu = menu;
-      this.addChild(menu);
-
-      /**
-       * Track the state of the menu button
-       *
-       * @type {Boolean}
-       * @private
-       */
-      this.buttonPressed_ = false;
-      this.menuButton_.el_.setAttribute('aria-expanded', 'false');
-      if (this.items && this.items.length <= this.hideThreshold_) {
-        this.hide();
-        this.menu.contentEl_.removeAttribute('role');
-      } else {
-        this.show();
-        this.menu.contentEl_.setAttribute('role', 'menu');
-      }
-    }
-
-    /**
-     * Create the menu and add all items to it.
-     *
-     * @return {Menu}
-     *         The constructed menu
-     */
-    createMenu() {
-      const menu = new Menu(this.player_, {
-        menuButton: this
-      });
-
-      /**
-       * Hide the menu if the number of items is less than or equal to this threshold. This defaults
-       * to 0 and whenever we add items which can be hidden to the menu we'll increment it. We list
-       * it here because every time we run `createMenu` we need to reset the value.
-       *
-       * @protected
-       * @type {Number}
-       */
-      this.hideThreshold_ = 0;
-
-      // Add a title list item to the top
-      if (this.options_.title) {
-        const titleEl = createEl('li', {
-          className: 'vjs-menu-title',
-          textContent: toTitleCase$1(this.options_.title),
-          tabIndex: -1
-        });
-        const titleComponent = new Component$1(this.player_, {
-          el: titleEl
-        });
-        menu.addItem(titleComponent);
-      }
-      this.items = this.createItems();
-      if (this.items) {
-        // Add menu items to the menu
-        for (let i = 0; i < this.items.length; i++) {
-          menu.addItem(this.items[i]);
-        }
-      }
-      return menu;
-    }
-
-    /**
-     * Create the list of menu items. Specific to each subclass.
-     *
-     * @abstract
-     */
-    createItems() {}
-
-    /**
-     * Create the `MenuButtons`s DOM element.
-     *
-     * @return {Element}
-     *         The element that gets created.
-     */
-    createEl() {
-      return super.createEl('div', {
-        className: this.buildWrapperCSSClass()
-      }, {});
-    }
-
-    /**
-     * Overwrites the `setIcon` method from `Component`.
-     * In this case, we want the icon to be appended to the menuButton.
-     *
-     * @param {string} name
-     *         The icon name to be added.
-     */
-    setIcon(name) {
-      super.setIcon(name, this.menuButton_.el_);
-    }
-
-    /**
-     * Allow sub components to stack CSS class names for the wrapper element
-     *
-     * @return {string}
-     *         The constructed wrapper DOM `className`
-     */
-    buildWrapperCSSClass() {
-      let menuButtonClass = 'vjs-menu-button';
-
-      // If the inline option is passed, we want to use different styles altogether.
-      if (this.options_.inline === true) {
-        menuButtonClass += '-inline';
-      } else {
-        menuButtonClass += '-popup';
-      }
-
-      // TODO: Fix the CSS so that this isn't necessary
-      const buttonClass = Button.prototype.buildCSSClass();
-      return `vjs-menu-button ${menuButtonClass} ${buttonClass} ${super.buildCSSClass()}`;
-    }
-
-    /**
-     * Builds the default DOM `className`.
-     *
-     * @return {string}
-     *         The DOM `className` for this object.
-     */
-    buildCSSClass() {
-      let menuButtonClass = 'vjs-menu-button';
-
-      // If the inline option is passed, we want to use different styles altogether.
-      if (this.options_.inline === true) {
-        menuButtonClass += '-inline';
-      } else {
-        menuButtonClass += '-popup';
-      }
-      return `vjs-menu-button ${menuButtonClass} ${super.buildCSSClass()}`;
-    }
-
-    /**
-     * Get or set the localized control text that will be used for accessibility.
-     *
-     * > NOTE: This will come from the internal `menuButton_` element.
-     *
-     * @param {string} [text]
-     *        Control text for element.
-     *
-     * @param {Element} [el=this.menuButton_.el()]
-     *        Element to set the title on.
-     *
-     * @return {string}
-     *         - The control text when getting
-     */
-    controlText(text, el = this.menuButton_.el()) {
-      return this.menuButton_.controlText(text, el);
-    }
-
-    /**
-     * Dispose of the `menu-button` and all child components.
-     */
-    dispose() {
-      this.handleMouseLeave();
-      super.dispose();
-    }
-
-    /**
-     * Handle a click on a `MenuButton`.
-     * See {@link ClickableComponent#handleClick} for instances where this is called.
-     *
-     * @param {Event} event
-     *        The `keydown`, `tap`, or `click` event that caused this function to be
-     *        called.
-     *
-     * @listens tap
-     * @listens click
-     */
-    handleClick(event) {
-      if (this.buttonPressed_) {
-        this.unpressButton();
-      } else {
-        this.pressButton();
-      }
-    }
-
-    /**
-     * Handle `mouseleave` for `MenuButton`.
-     *
-     * @param {Event} event
-     *        The `mouseleave` event that caused this function to be called.
-     *
-     * @listens mouseleave
-     */
-    handleMouseLeave(event) {
-      this.removeClass('vjs-hover');
-      off(document, 'keyup', this.handleMenuKeyUp_);
-    }
-
-    /**
-     * Set the focus to the actual button, not to this element
-     */
-    focus() {
-      this.menuButton_.focus();
-    }
-
-    /**
-     * Remove the focus from the actual button, not this element
-     */
-    blur() {
-      this.menuButton_.blur();
-    }
-
-    /**
-     * Handle tab, escape, down arrow, and up arrow keys for `MenuButton`. See
-     * {@link ClickableComponent#handleKeyDown} for instances where this is called.
-     *
-     * @param {Event} event
-     *        The `keydown` event that caused this function to be called.
-     *
-     * @listens keydown
-     */
-    handleKeyDown(event) {
-      // Escape or Tab unpress the 'button'
-      if (keycode.isEventKey(event, 'Esc') || keycode.isEventKey(event, 'Tab')) {
-        if (this.buttonPressed_) {
-          this.unpressButton();
-        }
-
-        // Don't preventDefault for Tab key - we still want to lose focus
-        if (!keycode.isEventKey(event, 'Tab')) {
-          event.preventDefault();
-          // Set focus back to the menu button's button
-          this.menuButton_.focus();
-        }
-        // Up Arrow or Down Arrow also 'press' the button to open the menu
-      } else if (keycode.isEventKey(event, 'Up') || keycode.isEventKey(event, 'Down')) {
-        if (!this.buttonPressed_) {
-          event.preventDefault();
-          this.pressButton();
-        }
-      }
-    }
-
-    /**
-     * Handle a `keyup` event on a `MenuButton`. The listener for this is added in
-     * the constructor.
-     *
-     * @param {Event} event
-     *        Key press event
-     *
-     * @listens keyup
-     */
-    handleMenuKeyUp(event) {
-      // Escape hides popup menu
-      if (keycode.isEventKey(event, 'Esc') || keycode.isEventKey(event, 'Tab')) {
-        this.removeClass('vjs-hover');
-      }
-    }
-
-    /**
-     * This method name now delegates to `handleSubmenuKeyDown`. This means
-     * anyone calling `handleSubmenuKeyPress` will not see their method calls
-     * stop working.
-     *
-     * @param {Event} event
-     *        The event that caused this function to be called.
-     */
-    handleSubmenuKeyPress(event) {
-      this.handleSubmenuKeyDown(event);
-    }
-
-    /**
-     * Handle a `keydown` event on a sub-menu. The listener for this is added in
-     * the constructor.
-     *
-     * @param {Event} event
-     *        Key press event
-     *
-     * @listens keydown
-     */
-    handleSubmenuKeyDown(event) {
-      // Escape or Tab unpress the 'button'
-      if (keycode.isEventKey(event, 'Esc') || keycode.isEventKey(event, 'Tab')) {
-        if (this.buttonPressed_) {
-          this.unpressButton();
-        }
-        // Don't preventDefault for Tab key - we still want to lose focus
-        if (!keycode.isEventKey(event, 'Tab')) {
-          event.preventDefault();
-          // Set focus back to the menu button's button
-          this.menuButton_.focus();
-        }
-      }
-    }
-
-    /**
-     * Put the current `MenuButton` into a pressed state.
-     */
-    pressButton() {
-      if (this.enabled_) {
-        this.buttonPressed_ = true;
-        this.menu.show();
-        this.menu.lockShowing();
-        this.menuButton_.el_.setAttribute('aria-expanded', 'true');
-
-        // set the focus into the submenu, except on iOS where it is resulting in
-        // undesired scrolling behavior when the player is in an iframe
-        if (IS_IOS && isInFrame()) {
-          // Return early so that the menu isn't focused
-          return;
-        }
-        this.menu.focus();
-      }
-    }
-
-    /**
-     * Take the current `MenuButton` out of a pressed state.
-     */
-    unpressButton() {
-      if (this.enabled_) {
-        this.buttonPressed_ = false;
-        this.menu.unlockShowing();
-        this.menu.hide();
-        this.menuButton_.el_.setAttribute('aria-expanded', 'false');
-      }
-    }
-
-    /**
-     * Disable the `MenuButton`. Don't allow it to be clicked.
-     */
-    disable() {
-      this.unpressButton();
-      this.enabled_ = false;
-      this.addClass('vjs-disabled');
-      this.menuButton_.disable();
-    }
-
-    /**
-     * Enable the `MenuButton`. Allow it to be clicked.
-     */
-    enable() {
-      this.enabled_ = true;
-      this.removeClass('vjs-disabled');
-      this.menuButton_.enable();
-    }
-  }
-  Component$1.registerComponent('MenuButton', MenuButton);
-
-  /**
-   * @file track-button.js
-   */
-
-  /**
-   * The base class for buttons that toggle specific  track types (e.g. subtitles).
-   *
-   * @extends MenuButton
-   */
-  class TrackButton extends MenuButton {
-    /**
-     * Creates an instance of this class.
-     *
-     * @param { import('./player').default } player
-     *        The `Player` that this class should be attached to.
-     *
-     * @param {Object} [options]
-     *        The key/value store of player options.
-     */
-    constructor(player, options) {
-      const tracks = options.tracks;
-      super(player, options);
-      if (this.items.length <= 1) {
-        this.hide();
-      }
-      if (!tracks) {
-        return;
-      }
-      const updateHandler = bind_(this, this.update);
-      tracks.addEventListener('removetrack', updateHandler);
-      tracks.addEventListener('addtrack', updateHandler);
-      tracks.addEventListener('labelchange', updateHandler);
-      this.player_.on('ready', updateHandler);
-      this.player_.on('dispose', function () {
-        tracks.removeEventListener('removetrack', updateHandler);
-        tracks.removeEventListener('addtrack', updateHandler);
-        tracks.removeEventListener('labelchange', updateHandler);
-      });
-    }
-  }
-  Component$1.registerComponent('TrackButton', TrackButton);
-
-  /**
-   * @file menu-keys.js
-   */
-
-  /**
-    * All keys used for operation of a menu (`MenuButton`, `Menu`, and `MenuItem`)
-    * Note that 'Enter' and 'Space' are not included here (otherwise they would
-    * prevent the `MenuButton` and `MenuItem` from being keyboard-clickable)
-   *
-    * @typedef MenuKeys
-    * @array
-    */
-  const MenuKeys = ['Tab', 'Esc', 'Up', 'Down', 'Right', 'Left'];
-
-  /**
-   * @file menu-item.js
-   */
-
-  /**
-   * The component for a menu item. `<li>`
-   *
-   * @extends ClickableComponent
-   */
-  class MenuItem extends ClickableComponent {
-    /**
-     * Creates an instance of the this class.
-     *
-     * @param { import('../player').default } player
-     *        The `Player` that this class should be attached to.
-     *
-     * @param {Object} [options={}]
-     *        The key/value store of player options.
-     *
-     */
-    constructor(player, options) {
-      super(player, options);
-      this.selectable = options.selectable;
-      this.isSelected_ = options.selected || false;
-      this.multiSelectable = options.multiSelectable;
-      this.selected(this.isSelected_);
-      if (this.selectable) {
-        if (this.multiSelectable) {
-          this.el_.setAttribute('role', 'menuitemcheckbox');
-        } else {
-          this.el_.setAttribute('role', 'menuitemradio');
-        }
-      } else {
-        this.el_.setAttribute('role', 'menuitem');
-      }
-    }
-
-    /**
-     * Create the `MenuItem's DOM element
-     *
-     * @param {string} [type=li]
-     *        Element's node type, not actually used, always set to `li`.
-     *
-     * @param {Object} [props={}]
-     *        An object of properties that should be set on the element
-     *
-     * @param {Object} [attrs={}]
-     *        An object of attributes that should be set on the element
-     *
-     * @return {Element}
-     *         The element that gets created.
-     */
-    createEl(type, props, attrs) {
-      // The control is textual, not just an icon
-      this.nonIconControl = true;
-      const el = super.createEl('li', Object.assign({
-        className: 'vjs-menu-item',
-        tabIndex: -1
-      }, props), attrs);
-
-      // swap icon with menu item text.
-      const menuItemEl = createEl('span', {
-        className: 'vjs-menu-item-text',
-        textContent: this.localize(this.options_.label)
-      });
-
-      // If using SVG icons, the element with vjs-icon-placeholder will be added separately.
-      if (this.player_.options_.experimentalSvgIcons) {
-        el.appendChild(menuItemEl);
-      } else {
-        el.replaceChild(menuItemEl, el.querySelector('.vjs-icon-placeholder'));
-      }
-      return el;
-    }
-
-    /**
-     * Ignore keys which are used by the menu, but pass any other ones up. See
-     * {@link ClickableComponent#handleKeyDown} for instances where this is called.
-     *
-     * @param {KeyboardEvent} event
-     *        The `keydown` event that caused this function to be called.
-     *
-     * @listens keydown
-     */
-    handleKeyDown(event) {
-      if (!MenuKeys.some(key => keycode.isEventKey(event, key))) {
-        // Pass keydown handling up for unused keys
-        super.handleKeyDown(event);
-      }
-    }
-
-    /**
-     * Any click on a `MenuItem` puts it into the selected state.
-     * See {@link ClickableComponent#handleClick} for instances where this is called.
-     *
-     * @param {Event} event
-     *        The `keydown`, `tap`, or `click` event that caused this function to be
-     *        called.
-     *
-     * @listens tap
-     * @listens click
-     */
-    handleClick(event) {
-      this.selected(true);
-    }
-
-    /**
-     * Set the state for this menu item as selected or not.
-     *
-     * @param {boolean} selected
-     *        if the menu item is selected or not
-     */
-    selected(selected) {
-      if (this.selectable) {
-        if (selected) {
-          this.addClass('vjs-selected');
-          this.el_.setAttribute('aria-checked', 'true');
-          // aria-checked isn't fully supported by browsers/screen readers,
-          // so indicate selected state to screen reader in the control text.
-          this.controlText(', selected');
-          this.isSelected_ = true;
-        } else {
-          this.removeClass('vjs-selected');
-          this.el_.setAttribute('aria-checked', 'false');
-          // Indicate un-selected state to screen reader
-          this.controlText('');
-          this.isSelected_ = false;
-        }
-      }
-    }
-  }
-  Component$1.registerComponent('MenuItem', MenuItem);
-
-  /**
-   * @file text-track-menu-item.js
-   */
-
-  /**
-   * The specific menu item type for selecting a language within a text track kind
-   *
-   * @extends MenuItem
-   */
-  class TextTrackMenuItem extends MenuItem {
-    /**
-     * Creates an instance of this class.
-     *
-     * @param { import('../../player').default } player
-     *        The `Player` that this class should be attached to.
-     *
-     * @param {Object} [options]
-     *        The key/value store of player options.
-     */
-    constructor(player, options) {
-      const track = options.track;
-      const tracks = player.textTracks();
-
-      // Modify options for parent MenuItem class's init.
-      options.label = track.label || track.language || 'Unknown';
-      options.selected = track.mode === 'showing';
-      super(player, options);
-      this.track = track;
-      // Determine the relevant kind(s) of tracks for this component and filter
-      // out empty kinds.
-      this.kinds = (options.kinds || [options.kind || this.track.kind]).filter(Boolean);
-      const changeHandler = (...args) => {
-        this.handleTracksChange.apply(this, args);
-      };
-      const selectedLanguageChangeHandler = (...args) => {
-        this.handleSelectedLanguageChange.apply(this, args);
-      };
-      player.on(['loadstart', 'texttrackchange'], changeHandler);
-      tracks.addEventListener('change', changeHandler);
-      tracks.addEventListener('selectedlanguagechange', selectedLanguageChangeHandler);
-      this.on('dispose', function () {
-        player.off(['loadstart', 'texttrackchange'], changeHandler);
-        tracks.removeEventListener('change', changeHandler);
-        tracks.removeEventListener('selectedlanguagechange', selectedLanguageChangeHandler);
-      });
-
-      // iOS7 doesn't dispatch change events to TextTrackLists when an
-      // associated track's mode changes. Without something like
-      // Object.observe() (also not present on iOS7), it's not
-      // possible to detect changes to the mode attribute and polyfill
-      // the change event. As a poor substitute, we manually dispatch
-      // change events whenever the controls modify the mode.
-      if (tracks.onchange === undefined) {
-        let event;
-        this.on(['tap', 'click'], function () {
-          if (typeof window.Event !== 'object') {
-            // Android 2.3 throws an Illegal Constructor error for window.Event
-            try {
-              event = new window.Event('change');
-            } catch (err) {
-              // continue regardless of error
-            }
-          }
-          if (!event) {
-            event = document.createEvent('Event');
-            event.initEvent('change', true, true);
-          }
-          tracks.dispatchEvent(event);
-        });
-      }
-
-      // set the default state based on current tracks
-      this.handleTracksChange();
-    }
-
-    /**
-     * This gets called when an `TextTrackMenuItem` is "clicked". See
-     * {@link ClickableComponent} for more detailed information on what a click can be.
-     *
-     * @param {Event} event
-     *        The `keydown`, `tap`, or `click` event that caused this function to be
-     *        called.
-     *
-     * @listens tap
-     * @listens click
-     */
-    handleClick(event) {
-      const referenceTrack = this.track;
-      const tracks = this.player_.textTracks();
-      super.handleClick(event);
-      if (!tracks) {
-        return;
-      }
-      for (let i = 0; i < tracks.length; i++) {
-        const track = tracks[i];
-
-        // If the track from the text tracks list is not of the right kind,
-        // skip it. We do not want to affect tracks of incompatible kind(s).
-        if (this.kinds.indexOf(track.kind) === -1) {
-          continue;
-        }
-
-        // If this text track is the component's track and it is not showing,
-        // set it to showing.
-        if (track === referenceTrack) {
-          if (track.mode !== 'showing') {
-            track.mode = 'showing';
-          }
-
-          // If this text track is not the component's track and it is not
-          // disabled, set it to disabled.
-        } else if (track.mode !== 'disabled') {
-          track.mode = 'disabled';
-        }
-      }
-    }
-
-    /**
-     * Handle text track list change
-     *
-     * @param {Event} event
-     *        The `change` event that caused this function to be called.
-     *
-     * @listens TextTrackList#change
-     */
-    handleTracksChange(event) {
-      const shouldBeSelected = this.track.mode === 'showing';
-
-      // Prevent redundant selected() calls because they may cause
-      // screen readers to read the appended control text unnecessarily
-      if (shouldBeSelected !== this.isSelected_) {
-        this.selected(shouldBeSelected);
-      }
-    }
-    handleSelectedLanguageChange(event) {
-      if (this.track.mode === 'showing') {
-        const selectedLanguage = this.player_.cache_.selectedLanguage;
-
-        // Don't replace the kind of track across the same language
-        if (selectedLanguage && selectedLanguage.enabled && selectedLanguage.language === this.track.language && selectedLanguage.kind !== this.track.kind) {
-          return;
-        }
-        this.player_.cache_.selectedLanguage = {
-          enabled: true,
-          language: this.track.language,
-          kind: this.track.kind
-        };
-      }
-    }
-    dispose() {
-      // remove reference to track object on dispose
-      this.track = null;
-      super.dispose();
-    }
-  }
-  Component$1.registerComponent('TextTrackMenuItem', TextTrackMenuItem);
-
-  /**
-   * @file off-text-track-menu-item.js
-   */
-
-  /**
-   * A special menu item for turning off a specific type of text track
-   *
-   * @extends TextTrackMenuItem
-   */
-  class OffTextTrackMenuItem extends TextTrackMenuItem {
-    /**
-     * Creates an instance of this class.
-     *
-     * @param { import('../../player').default } player
-     *        The `Player` that this class should be attached to.
-     *
-     * @param {Object} [options]
-     *        The key/value store of player options.
-     */
-    constructor(player, options) {
-      // Create pseudo track info
-      // Requires options['kind']
-      options.track = {
-        player,
-        // it is no longer necessary to store `kind` or `kinds` on the track itself
-        // since they are now stored in the `kinds` property of all instances of
-        // TextTrackMenuItem, but this will remain for backwards compatibility
-        kind: options.kind,
-        kinds: options.kinds,
-        default: false,
-        mode: 'disabled'
-      };
-      if (!options.kinds) {
-        options.kinds = [options.kind];
-      }
-      if (options.label) {
-        options.track.label = options.label;
-      } else {
-        options.track.label = options.kinds.join(' and ') + ' off';
-      }
-
-      // MenuItem is selectable
-      options.selectable = true;
-      // MenuItem is NOT multiSelectable (i.e. only one can be marked "selected" at a time)
-      options.multiSelectable = false;
-      super(player, options);
-    }
-
-    /**
-     * Handle text track change
-     *
-     * @param {Event} event
-     *        The event that caused this function to run
-     */
-    handleTracksChange(event) {
-      const tracks = this.player().textTracks();
-      let shouldBeSelected = true;
-      for (let i = 0, l = tracks.length; i < l; i++) {
-        const track = tracks[i];
-        if (this.options_.kinds.indexOf(track.kind) > -1 && track.mode === 'showing') {
-          shouldBeSelected = false;
-          break;
-        }
-      }
-
-      // Prevent redundant selected() calls because they may cause
-      // screen readers to read the appended control text unnecessarily
-      if (shouldBeSelected !== this.isSelected_) {
-        this.selected(shouldBeSelected);
-      }
-    }
-    handleSelectedLanguageChange(event) {
-      const tracks = this.player().textTracks();
-      let allHidden = true;
-      for (let i = 0, l = tracks.length; i < l; i++) {
-        const track = tracks[i];
-        if (['captions', 'descriptions', 'subtitles'].indexOf(track.kind) > -1 && track.mode === 'showing') {
-          allHidden = false;
-          break;
-        }
-      }
-      if (allHidden) {
-        this.player_.cache_.selectedLanguage = {
-          enabled: false
-        };
-      }
-    }
-
-    /**
-     * Update control text and label on languagechange
-     */
-    handleLanguagechange() {
-      this.$('.vjs-menu-item-text').textContent = this.player_.localize(this.options_.label);
-      super.handleLanguagechange();
-    }
-  }
-  Component$1.registerComponent('OffTextTrackMenuItem', OffTextTrackMenuItem);
-
-  /**
-   * @file text-track-button.js
-   */
-
-  /**
-   * The base class for buttons that toggle specific text track types (e.g. subtitles)
-   *
-   * @extends MenuButton
-   */
-  class TextTrackButton extends TrackButton {
-    /**
-     * Creates an instance of this class.
-     *
-     * @param { import('../../player').default } player
-     *        The `Player` that this class should be attached to.
-     *
-     * @param {Object} [options={}]
-     *        The key/value store of player options.
-     */
-    constructor(player, options = {}) {
-      options.tracks = player.textTracks();
-      super(player, options);
-    }
-
-    /**
-     * Create a menu item for each text track
-     *
-     * @param {TextTrackMenuItem[]} [items=[]]
-     *        Existing array of items to use during creation
-     *
-     * @return {TextTrackMenuItem[]}
-     *         Array of menu items that were created
-     */
-    createItems(items = [], TrackMenuItem = TextTrackMenuItem) {
-      // Label is an override for the [track] off label
-      // USed to localise captions/subtitles
-      let label;
-      if (this.label_) {
-        label = `${this.label_} off`;
-      }
-      // Add an OFF menu item to turn all tracks off
-      items.push(new OffTextTrackMenuItem(this.player_, {
-        kinds: this.kinds_,
-        kind: this.kind_,
-        label
-      }));
-      this.hideThreshold_ += 1;
-      const tracks = this.player_.textTracks();
-      if (!Array.isArray(this.kinds_)) {
-        this.kinds_ = [this.kind_];
-      }
-      for (let i = 0; i < tracks.length; i++) {
-        const track = tracks[i];
-
-        // only add tracks that are of an appropriate kind and have a label
-        if (this.kinds_.indexOf(track.kind) > -1) {
-          const item = new TrackMenuItem(this.player_, {
-            track,
-            kinds: this.kinds_,
-            kind: this.kind_,
-            // MenuItem is selectable
-            selectable: true,
-            // MenuItem is NOT multiSelectable (i.e. only one can be marked "selected" at a time)
-            multiSelectable: false
-          });
-          item.addClass(`vjs-${track.kind}-menu-item`);
-          items.push(item);
-        }
-      }
-      return items;
-    }
-  }
-  Component$1.registerComponent('TextTrackButton', TextTrackButton);
-
-  /**
-   * @file chapters-track-menu-item.js
-   */
-
-  /**
-   * The chapter track menu item
-   *
-   * @extends MenuItem
-   */
-  class ChaptersTrackMenuItem extends MenuItem {
-    /**
-     * Creates an instance of this class.
-     *
-     * @param { import('../../player').default } player
-     *        The `Player` that this class should be attached to.
-     *
-     * @param {Object} [options]
-     *        The key/value store of player options.
-     */
-    constructor(player, options) {
-      const track = options.track;
-      const cue = options.cue;
-      const currentTime = player.currentTime();
-
-      // Modify options for parent MenuItem class's init.
-      options.selectable = true;
-      options.multiSelectable = false;
-      options.label = cue.text;
-      options.selected = cue.startTime <= currentTime && currentTime < cue.endTime;
-      super(player, options);
-      this.track = track;
-      this.cue = cue;
-    }
-
-    /**
-     * This gets called when an `ChaptersTrackMenuItem` is "clicked". See
-     * {@link ClickableComponent} for more detailed information on what a click can be.
-     *
-     * @param {Event} [event]
-     *        The `keydown`, `tap`, or `click` event that caused this function to be
-     *        called.
-     *
-     * @listens tap
-     * @listens click
-     */
-    handleClick(event) {
-      super.handleClick();
-      this.player_.currentTime(this.cue.startTime);
-    }
-  }
-  Component$1.registerComponent('ChaptersTrackMenuItem', ChaptersTrackMenuItem);
-
-  /**
-   * @file chapters-button.js
-   */
-
-  /**
-   * The button component for toggling and selecting chapters
-   * Chapters act much differently than other text tracks
-   * Cues are navigation vs. other tracks of alternative languages
-   *
-   * @extends TextTrackButton
-   */
-  class ChaptersButton extends TextTrackButton {
-    /**
-     * Creates an instance of this class.
-     *
-     * @param { import('../../player').default } player
-     *        The `Player` that this class should be attached to.
-     *
-     * @param {Object} [options]
-     *        The key/value store of player options.
-     *
-     * @param {Function} [ready]
-     *        The function to call when this function is ready.
-     */
-    constructor(player, options, ready) {
-      super(player, options, ready);
-      this.setIcon('chapters');
-      this.selectCurrentItem_ = () => {
-        this.items.forEach(item => {
-          item.selected(this.track_.activeCues[0] === item.cue);
-        });
-      };
-    }
-
-    /**
-     * Builds the default DOM `className`.
-     *
-     * @return {string}
-     *         The DOM `className` for this object.
-     */
-    buildCSSClass() {
-      return `vjs-chapters-button ${super.buildCSSClass()}`;
-    }
-    buildWrapperCSSClass() {
-      return `vjs-chapters-button ${super.buildWrapperCSSClass()}`;
-    }
-
-    /**
-     * Update the menu based on the current state of its items.
-     *
-     * @param {Event} [event]
-     *        An event that triggered this function to run.
-     *
-     * @listens TextTrackList#addtrack
-     * @listens TextTrackList#removetrack
-     * @listens TextTrackList#change
-     */
-    update(event) {
-      if (event && event.track && event.track.kind !== 'chapters') {
-        return;
-      }
-      const track = this.findChaptersTrack();
-      if (track !== this.track_) {
-        this.setTrack(track);
-        super.update();
-      } else if (!this.items || track && track.cues && track.cues.length !== this.items.length) {
-        // Update the menu initially or if the number of cues has changed since set
-        super.update();
-      }
-    }
-
-    /**
-     * Set the currently selected track for the chapters button.
-     *
-     * @param {TextTrack} track
-     *        The new track to select. Nothing will change if this is the currently selected
-     *        track.
-     */
-    setTrack(track) {
-      if (this.track_ === track) {
-        return;
-      }
-      if (!this.updateHandler_) {
-        this.updateHandler_ = this.update.bind(this);
-      }
-
-      // here this.track_ refers to the old track instance
-      if (this.track_) {
-        const remoteTextTrackEl = this.player_.remoteTextTrackEls().getTrackElementByTrack_(this.track_);
-        if (remoteTextTrackEl) {
-          remoteTextTrackEl.removeEventListener('load', this.updateHandler_);
-        }
-        this.track_.removeEventListener('cuechange', this.selectCurrentItem_);
-        this.track_ = null;
-      }
-      this.track_ = track;
-
-      // here this.track_ refers to the new track instance
-      if (this.track_) {
-        this.track_.mode = 'hidden';
-        const remoteTextTrackEl = this.player_.remoteTextTrackEls().getTrackElementByTrack_(this.track_);
-        if (remoteTextTrackEl) {
-          remoteTextTrackEl.addEventListener('load', this.updateHandler_);
-        }
-        this.track_.addEventListener('cuechange', this.selectCurrentItem_);
-      }
-    }
-
-    /**
-     * Find the track object that is currently in use by this ChaptersButton
-     *
-     * @return {TextTrack|undefined}
-     *         The current track or undefined if none was found.
-     */
-    findChaptersTrack() {
-      const tracks = this.player_.textTracks() || [];
-      for (let i = tracks.length - 1; i >= 0; i--) {
-        // We will always choose the last track as our chaptersTrack
-        const track = tracks[i];
-        if (track.kind === this.kind_) {
-          return track;
-        }
-      }
-    }
-
-    /**
-     * Get the caption for the ChaptersButton based on the track label. This will also
-     * use the current tracks localized kind as a fallback if a label does not exist.
-     *
-     * @return {string}
-     *         The tracks current label or the localized track kind.
-     */
-    getMenuCaption() {
-      if (this.track_ && this.track_.label) {
-        return this.track_.label;
-      }
-      return this.localize(toTitleCase$1(this.kind_));
-    }
-
-    /**
-     * Create menu from chapter track
-     *
-     * @return { import('../../menu/menu').default }
-     *         New menu for the chapter buttons
-     */
-    createMenu() {
-      this.options_.title = this.getMenuCaption();
-      return super.createMenu();
-    }
-
-    /**
-     * Create a menu item for each text track
-     *
-     * @return  { import('./text-track-menu-item').default[] }
-     *         Array of menu items
-     */
-    createItems() {
-      const items = [];
-      if (!this.track_) {
-        return items;
-      }
-      const cues = this.track_.cues;
-      if (!cues) {
-        return items;
-      }
-      for (let i = 0, l = cues.length; i < l; i++) {
-        const cue = cues[i];
-        const mi = new ChaptersTrackMenuItem(this.player_, {
-          track: this.track_,
-          cue
-        });
-        items.push(mi);
-      }
-      return items;
-    }
-  }
-
-  /**
-   * `kind` of TextTrack to look for to associate it with this menu.
-   *
-   * @type {string}
-   * @private
-   */
-  ChaptersButton.prototype.kind_ = 'chapters';
-
-  /**
-   * The text that should display over the `ChaptersButton`s controls. Added for localization.
-   *
-   * @type {string}
-   * @protected
-   */
-  ChaptersButton.prototype.controlText_ = 'Chapters';
-  Component$1.registerComponent('ChaptersButton', ChaptersButton);
-
-  /**
-   * @file descriptions-button.js
-   */
-
-  /**
-   * The button component for toggling and selecting descriptions
-   *
-   * @extends TextTrackButton
-   */
-  class DescriptionsButton extends TextTrackButton {
-    /**
-     * Creates an instance of this class.
-     *
-     * @param { import('../../player').default } player
-     *        The `Player` that this class should be attached to.
-     *
-     * @param {Object} [options]
-     *        The key/value store of player options.
-     *
-     * @param {Function} [ready]
-     *        The function to call when this component is ready.
-     */
-    constructor(player, options, ready) {
-      super(player, options, ready);
-      this.setIcon('audio-description');
-      const tracks = player.textTracks();
-      const changeHandler = bind_(this, this.handleTracksChange);
-      tracks.addEventListener('change', changeHandler);
-      this.on('dispose', function () {
-        tracks.removeEventListener('change', changeHandler);
-      });
-    }
-
-    /**
-     * Handle text track change
-     *
-     * @param {Event} event
-     *        The event that caused this function to run
-     *
-     * @listens TextTrackList#change
-     */
-    handleTracksChange(event) {
-      const tracks = this.player().textTracks();
-      let disabled = false;
-
-      // Check whether a track of a different kind is showing
-      for (let i = 0, l = tracks.length; i < l; i++) {
-        const track = tracks[i];
-        if (track.kind !== this.kind_ && track.mode === 'showing') {
-          disabled = true;
-          break;
-        }
-      }
-
-      // If another track is showing, disable this menu button
-      if (disabled) {
-        this.disable();
-      } else {
-        this.enable();
-      }
-    }
-
-    /**
-     * Builds the default DOM `className`.
-     *
-     * @return {string}
-     *         The DOM `className` for this object.
-     */
-    buildCSSClass() {
-      return `vjs-descriptions-button ${super.buildCSSClass()}`;
-    }
-    buildWrapperCSSClass() {
-      return `vjs-descriptions-button ${super.buildWrapperCSSClass()}`;
-    }
-  }
-
-  /**
-   * `kind` of TextTrack to look for to associate it with this menu.
-   *
-   * @type {string}
-   * @private
-   */
-  DescriptionsButton.prototype.kind_ = 'descriptions';
-
-  /**
-   * The text that should display over the `DescriptionsButton`s controls. Added for localization.
-   *
-   * @type {string}
-   * @protected
-   */
-  DescriptionsButton.prototype.controlText_ = 'Descriptions';
-  Component$1.registerComponent('DescriptionsButton', DescriptionsButton);
-
-  /**
-   * @file subtitles-button.js
-   */
-
-  /**
-   * The button component for toggling and selecting subtitles
-   *
-   * @extends TextTrackButton
-   */
-  class SubtitlesButton extends TextTrackButton {
-    /**
-     * Creates an instance of this class.
-     *
-     * @param { import('../../player').default } player
-     *        The `Player` that this class should be attached to.
-     *
-     * @param {Object} [options]
-     *        The key/value store of player options.
-     *
-     * @param {Function} [ready]
-     *        The function to call when this component is ready.
-     */
-    constructor(player, options, ready) {
-      super(player, options, ready);
-      this.setIcon('subtitles');
-    }
-
-    /**
-     * Builds the default DOM `className`.
-     *
-     * @return {string}
-     *         The DOM `className` for this object.
-     */
-    buildCSSClass() {
-      return `vjs-subtitles-button ${super.buildCSSClass()}`;
-    }
-    buildWrapperCSSClass() {
-      return `vjs-subtitles-button ${super.buildWrapperCSSClass()}`;
-    }
-  }
-
-  /**
-   * `kind` of TextTrack to look for to associate it with this menu.
-   *
-   * @type {string}
-   * @private
-   */
-  SubtitlesButton.prototype.kind_ = 'subtitles';
-
-  /**
-   * The text that should display over the `SubtitlesButton`s controls. Added for localization.
-   *
-   * @type {string}
-   * @protected
-   */
-  SubtitlesButton.prototype.controlText_ = 'Subtitles';
-  Component$1.registerComponent('SubtitlesButton', SubtitlesButton);
-
-  /**
-   * @file caption-settings-menu-item.js
-   */
-
-  /**
-   * The menu item for caption track settings menu
-   *
-   * @extends TextTrackMenuItem
-   */
-  class CaptionSettingsMenuItem extends TextTrackMenuItem {
-    /**
-     * Creates an instance of this class.
-     *
-     * @param { import('../../player').default } player
-     *        The `Player` that this class should be attached to.
-     *
-     * @param {Object} [options]
-     *        The key/value store of player options.
-     */
-    constructor(player, options) {
-      options.track = {
-        player,
-        kind: options.kind,
-        label: options.kind + ' settings',
-        selectable: false,
-        default: false,
-        mode: 'disabled'
-      };
-
-      // CaptionSettingsMenuItem has no concept of 'selected'
-      options.selectable = false;
-      options.name = 'CaptionSettingsMenuItem';
-      super(player, options);
-      this.addClass('vjs-texttrack-settings');
-      this.controlText(', opens ' + options.kind + ' settings dialog');
-    }
-
-    /**
-     * This gets called when an `CaptionSettingsMenuItem` is "clicked". See
-     * {@link ClickableComponent} for more detailed information on what a click can be.
-     *
-     * @param {Event} [event]
-     *        The `keydown`, `tap`, or `click` event that caused this function to be
-     *        called.
-     *
-     * @listens tap
-     * @listens click
-     */
-    handleClick(event) {
-      this.player().getChild('textTrackSettings').open();
-    }
-
-    /**
-     * Update control text and label on languagechange
-     */
-    handleLanguagechange() {
-      this.$('.vjs-menu-item-text').textContent = this.player_.localize(this.options_.kind + ' settings');
-      super.handleLanguagechange();
-    }
-  }
-  Component$1.registerComponent('CaptionSettingsMenuItem', CaptionSettingsMenuItem);
-
-  /**
-   * @file captions-button.js
-   */
-
-  /**
-   * The button component for toggling and selecting captions
-   *
-   * @extends TextTrackButton
-   */
-  class CaptionsButton extends TextTrackButton {
-    /**
-     * Creates an instance of this class.
-     *
-     * @param { import('../../player').default } player
-     *        The `Player` that this class should be attached to.
-     *
-     * @param {Object} [options]
-     *        The key/value store of player options.
-     *
-     * @param {Function} [ready]
-     *        The function to call when this component is ready.
-     */
-    constructor(player, options, ready) {
-      super(player, options, ready);
-      this.setIcon('captions');
-    }
-
-    /**
-     * Builds the default DOM `className`.
-     *
-     * @return {string}
-     *         The DOM `className` for this object.
-     */
-    buildCSSClass() {
-      return `vjs-captions-button ${super.buildCSSClass()}`;
-    }
-    buildWrapperCSSClass() {
-      return `vjs-captions-button ${super.buildWrapperCSSClass()}`;
-    }
-
-    /**
-     * Create caption menu items
-     *
-     * @return {CaptionSettingsMenuItem[]}
-     *         The array of current menu items.
-     */
-    createItems() {
-      const items = [];
-      if (!(this.player().tech_ && this.player().tech_.featuresNativeTextTracks) && this.player().getChild('textTrackSettings')) {
-        items.push(new CaptionSettingsMenuItem(this.player_, {
-          kind: this.kind_
-        }));
-        this.hideThreshold_ += 1;
-      }
-      return super.createItems(items);
-    }
-  }
-
-  /**
-   * `kind` of TextTrack to look for to associate it with this menu.
-   *
-   * @type {string}
-   * @private
-   */
-  CaptionsButton.prototype.kind_ = 'captions';
-
-  /**
-   * The text that should display over the `CaptionsButton`s controls. Added for localization.
-   *
-   * @type {string}
-   * @protected
-   */
-  CaptionsButton.prototype.controlText_ = 'Captions';
-  Component$1.registerComponent('CaptionsButton', CaptionsButton);
-
-  /**
-   * @file subs-caps-menu-item.js
-   */
-
-  /**
-   * SubsCapsMenuItem has an [cc] icon to distinguish captions from subtitles
-   * in the SubsCapsMenu.
-   *
-   * @extends TextTrackMenuItem
-   */
-  class SubsCapsMenuItem extends TextTrackMenuItem {
-    createEl(type, props, attrs) {
-      const el = super.createEl(type, props, attrs);
-      const parentSpan = el.querySelector('.vjs-menu-item-text');
-      if (this.options_.track.kind === 'captions') {
-        if (this.player_.options_.experimentalSvgIcons) {
-          this.setIcon('captions', el);
-        } else {
-          parentSpan.appendChild(createEl('span', {
-            className: 'vjs-icon-placeholder'
-          }, {
-            'aria-hidden': true
-          }));
-        }
-        parentSpan.appendChild(createEl('span', {
-          className: 'vjs-control-text',
-          // space added as the text will visually flow with the
-          // label
-          textContent: ` ${this.localize('Captions')}`
-        }));
-      }
-      return el;
-    }
-  }
-  Component$1.registerComponent('SubsCapsMenuItem', SubsCapsMenuItem);
-
-  /**
-   * @file sub-caps-button.js
-   */
-
-  /**
-   * The button component for toggling and selecting captions and/or subtitles
-   *
-   * @extends TextTrackButton
-   */
-  class SubsCapsButton extends TextTrackButton {
-    /**
-     * Creates an instance of this class.
-     *
-     * @param { import('../../player').default } player
-     *        The `Player` that this class should be attached to.
-     *
-     * @param {Object} [options]
-     *        The key/value store of player options.
-     *
-     * @param {Function} [ready]
-     *        The function to call when this component is ready.
-     */
-    constructor(player, options = {}) {
-      super(player, options);
-
-      // Although North America uses "captions" in most cases for
-      // "captions and subtitles" other locales use "subtitles"
-      this.label_ = 'subtitles';
-      this.setIcon('subtitles');
-      if (['en', 'en-us', 'en-ca', 'fr-ca'].indexOf(this.player_.language_) > -1) {
-        this.label_ = 'captions';
-        this.setIcon('captions');
-      }
-      this.menuButton_.controlText(toTitleCase$1(this.label_));
-    }
-
-    /**
-     * Builds the default DOM `className`.
-     *
-     * @return {string}
-     *         The DOM `className` for this object.
-     */
-    buildCSSClass() {
-      return `vjs-subs-caps-button ${super.buildCSSClass()}`;
-    }
-    buildWrapperCSSClass() {
-      return `vjs-subs-caps-button ${super.buildWrapperCSSClass()}`;
-    }
-
-    /**
-     * Create caption/subtitles menu items
-     *
-     * @return {CaptionSettingsMenuItem[]}
-     *         The array of current menu items.
-     */
-    createItems() {
-      let items = [];
-      if (!(this.player().tech_ && this.player().tech_.featuresNativeTextTracks) && this.player().getChild('textTrackSettings')) {
-        items.push(new CaptionSettingsMenuItem(this.player_, {
-          kind: this.label_
-        }));
-        this.hideThreshold_ += 1;
-      }
-      items = super.createItems(items, SubsCapsMenuItem);
-      return items;
-    }
-  }
-
-  /**
-   * `kind`s of TextTrack to look for to associate it with this menu.
-   *
-   * @type {array}
-   * @private
-   */
-  SubsCapsButton.prototype.kinds_ = ['captions', 'subtitles'];
-
-  /**
-   * The text that should display over the `SubsCapsButton`s controls.
-   *
-   *
-   * @type {string}
-   * @protected
-   */
-  SubsCapsButton.prototype.controlText_ = 'Subtitles';
-  Component$1.registerComponent('SubsCapsButton', SubsCapsButton);
-
-  /**
-   * @file audio-track-menu-item.js
-   */
-
-  /**
-   * An {@link AudioTrack} {@link MenuItem}
-   *
-   * @extends MenuItem
-   */
-  class AudioTrackMenuItem extends MenuItem {
-    /**
-     * Creates an instance of this class.
-     *
-     * @param { import('../../player').default } player
-     *        The `Player` that this class should be attached to.
-     *
-     * @param {Object} [options]
-     *        The key/value store of player options.
-     */
-    constructor(player, options) {
-      const track = options.track;
-      const tracks = player.audioTracks();
-
-      // Modify options for parent MenuItem class's init.
-      options.label = track.label || track.language || 'Unknown';
-      options.selected = track.enabled;
-      super(player, options);
-      this.track = track;
-      this.addClass(`vjs-${track.kind}-menu-item`);
-      const changeHandler = (...args) => {
-        this.handleTracksChange.apply(this, args);
-      };
-      tracks.addEventListener('change', changeHandler);
-      this.on('dispose', () => {
-        tracks.removeEventListener('change', changeHandler);
-      });
-    }
-    createEl(type, props, attrs) {
-      const el = super.createEl(type, props, attrs);
-      const parentSpan = el.querySelector('.vjs-menu-item-text');
-      if (['main-desc', 'description'].indexOf(this.options_.track.kind) >= 0) {
-        parentSpan.appendChild(createEl('span', {
-          className: 'vjs-icon-placeholder'
-        }, {
-          'aria-hidden': true
-        }));
-        parentSpan.appendChild(createEl('span', {
-          className: 'vjs-control-text',
-          textContent: ' ' + this.localize('Descriptions')
-        }));
-      }
-      return el;
-    }
-
-    /**
-     * This gets called when an `AudioTrackMenuItem is "clicked". See {@link ClickableComponent}
-     * for more detailed information on what a click can be.
-     *
-     * @param {Event} [event]
-     *        The `keydown`, `tap`, or `click` event that caused this function to be
-     *        called.
-     *
-     * @listens tap
-     * @listens click
-     */
-    handleClick(event) {
-      super.handleClick(event);
-
-      // the audio track list will automatically toggle other tracks
-      // off for us.
-      this.track.enabled = true;
-
-      // when native audio tracks are used, we want to make sure that other tracks are turned off
-      if (this.player_.tech_.featuresNativeAudioTracks) {
-        const tracks = this.player_.audioTracks();
-        for (let i = 0; i < tracks.length; i++) {
-          const track = tracks[i];
-
-          // skip the current track since we enabled it above
-          if (track === this.track) {
-            continue;
-          }
-          track.enabled = track === this.track;
-        }
-      }
-    }
-
-    /**
-     * Handle any {@link AudioTrack} change.
-     *
-     * @param {Event} [event]
-     *        The {@link AudioTrackList#change} event that caused this to run.
-     *
-     * @listens AudioTrackList#change
-     */
-    handleTracksChange(event) {
-      this.selected(this.track.enabled);
-    }
-  }
-  Component$1.registerComponent('AudioTrackMenuItem', AudioTrackMenuItem);
-
-  /**
-   * @file audio-track-button.js
-   */
-
-  /**
-   * The base class for buttons that toggle specific {@link AudioTrack} types.
-   *
-   * @extends TrackButton
-   */
-  class AudioTrackButton extends TrackButton {
-    /**
-     * Creates an instance of this class.
-     *
-     * @param {Player} player
-     *        The `Player` that this class should be attached to.
-     *
-     * @param {Object} [options={}]
-     *        The key/value store of player options.
-     */
-    constructor(player, options = {}) {
-      options.tracks = player.audioTracks();
-      super(player, options);
-      this.setIcon('audio');
-    }
-
-    /**
-     * Builds the default DOM `className`.
-     *
-     * @return {string}
-     *         The DOM `className` for this object.
-     */
-    buildCSSClass() {
-      return `vjs-audio-button ${super.buildCSSClass()}`;
-    }
-    buildWrapperCSSClass() {
-      return `vjs-audio-button ${super.buildWrapperCSSClass()}`;
-    }
-
-    /**
-     * Create a menu item for each audio track
-     *
-     * @param {AudioTrackMenuItem[]} [items=[]]
-     *        An array of existing menu items to use.
-     *
-     * @return {AudioTrackMenuItem[]}
-     *         An array of menu items
-     */
-    createItems(items = []) {
-      // if there's only one audio track, there no point in showing it
-      this.hideThreshold_ = 1;
-      const tracks = this.player_.audioTracks();
-      for (let i = 0; i < tracks.length; i++) {
-        const track = tracks[i];
-        items.push(new AudioTrackMenuItem(this.player_, {
-          track,
-          // MenuItem is selectable
-          selectable: true,
-          // MenuItem is NOT multiSelectable (i.e. only one can be marked "selected" at a time)
-          multiSelectable: false
-        }));
-      }
-      return items;
-    }
-  }
-
-  /**
-   * The text that should display over the `AudioTrackButton`s controls. Added for localization.
-   *
-   * @type {string}
-   * @protected
-   */
-  AudioTrackButton.prototype.controlText_ = 'Audio Track';
-  Component$1.registerComponent('AudioTrackButton', AudioTrackButton);
-
-  /**
-   * @file playback-rate-menu-item.js
-   */
-
-  /**
-   * The specific menu item type for selecting a playback rate.
-   *
-   * @extends MenuItem
-   */
-  class PlaybackRateMenuItem extends MenuItem {
-    /**
-     * Creates an instance of this class.
-     *
-     * @param { import('../../player').default } player
-     *        The `Player` that this class should be attached to.
-     *
-     * @param {Object} [options]
-     *        The key/value store of player options.
-     */
-    constructor(player, options) {
-      const label = options.rate;
-      const rate = parseFloat(label, 10);
-
-      // Modify options for parent MenuItem class's init.
-      options.label = label;
-      options.selected = rate === player.playbackRate();
-      options.selectable = true;
-      options.multiSelectable = false;
-      super(player, options);
-      this.label = label;
-      this.rate = rate;
-      this.on(player, 'ratechange', e => this.update(e));
-    }
-
-    /**
-     * This gets called when an `PlaybackRateMenuItem` is "clicked". See
-     * {@link ClickableComponent} for more detailed information on what a click can be.
-     *
-     * @param {Event} [event]
-     *        The `keydown`, `tap`, or `click` event that caused this function to be
-     *        called.
-     *
-     * @listens tap
-     * @listens click
-     */
-    handleClick(event) {
-      super.handleClick();
-      this.player().playbackRate(this.rate);
-    }
-
-    /**
-     * Update the PlaybackRateMenuItem when the playbackrate changes.
-     *
-     * @param {Event} [event]
-     *        The `ratechange` event that caused this function to run.
-     *
-     * @listens Player#ratechange
-     */
-    update(event) {
-      this.selected(this.player().playbackRate() === this.rate);
-    }
-  }
-
-  /**
-   * The text that should display over the `PlaybackRateMenuItem`s controls. Added for localization.
-   *
-   * @type {string}
-   * @private
-   */
-  PlaybackRateMenuItem.prototype.contentElType = 'button';
-  Component$1.registerComponent('PlaybackRateMenuItem', PlaybackRateMenuItem);
-
-  /**
-   * @file playback-rate-menu-button.js
-   */
-
-  /**
-   * The component for controlling the playback rate.
-   *
-   * @extends MenuButton
-   */
-  class PlaybackRateMenuButton extends MenuButton {
-    /**
-     * Creates an instance of this class.
-     *
-     * @param { import('../../player').default } player
-     *        The `Player` that this class should be attached to.
-     *
-     * @param {Object} [options]
-     *        The key/value store of player options.
-     */
-    constructor(player, options) {
-      super(player, options);
-      this.menuButton_.el_.setAttribute('aria-describedby', this.labelElId_);
-      this.updateVisibility();
-      this.updateLabel();
-      this.on(player, 'loadstart', e => this.updateVisibility(e));
-      this.on(player, 'ratechange', e => this.updateLabel(e));
-      this.on(player, 'playbackrateschange', e => this.handlePlaybackRateschange(e));
-    }
-
-    /**
-     * Create the `Component`'s DOM element
-     *
-     * @return {Element}
-     *         The element that was created.
-     */
-    createEl() {
-      const el = super.createEl();
-      this.labelElId_ = 'vjs-playback-rate-value-label-' + this.id_;
-      this.labelEl_ = createEl('div', {
-        className: 'vjs-playback-rate-value',
-        id: this.labelElId_,
-        textContent: '1x'
-      });
-      el.appendChild(this.labelEl_);
-      return el;
-    }
-    dispose() {
-      this.labelEl_ = null;
-      super.dispose();
-    }
-
-    /**
-     * Builds the default DOM `className`.
-     *
-     * @return {string}
-     *         The DOM `className` for this object.
-     */
-    buildCSSClass() {
-      return `vjs-playback-rate ${super.buildCSSClass()}`;
-    }
-    buildWrapperCSSClass() {
-      return `vjs-playback-rate ${super.buildWrapperCSSClass()}`;
-    }
-
-    /**
-     * Create the list of menu items. Specific to each subclass.
-     *
-     */
-    createItems() {
-      const rates = this.playbackRates();
-      const items = [];
-      for (let i = rates.length - 1; i >= 0; i--) {
-        items.push(new PlaybackRateMenuItem(this.player(), {
-          rate: rates[i] + 'x'
-        }));
-      }
-      return items;
-    }
-
-    /**
-     * On playbackrateschange, update the menu to account for the new items.
-     *
-     * @listens Player#playbackrateschange
-     */
-    handlePlaybackRateschange(event) {
-      this.update();
-    }
-
-    /**
-     * Get possible playback rates
-     *
-     * @return {Array}
-     *         All possible playback rates
-     */
-    playbackRates() {
-      const player = this.player();
-      return player.playbackRates && player.playbackRates() || [];
-    }
-
-    /**
-     * Get whether playback rates is supported by the tech
-     * and an array of playback rates exists
-     *
-     * @return {boolean}
-     *         Whether changing playback rate is supported
-     */
-    playbackRateSupported() {
-      return this.player().tech_ && this.player().tech_.featuresPlaybackRate && this.playbackRates() && this.playbackRates().length > 0;
-    }
-
-    /**
-     * Hide playback rate controls when they're no playback rate options to select
-     *
-     * @param {Event} [event]
-     *        The event that caused this function to run.
-     *
-     * @listens Player#loadstart
-     */
-    updateVisibility(event) {
-      if (this.playbackRateSupported()) {
-        this.removeClass('vjs-hidden');
-      } else {
-        this.addClass('vjs-hidden');
-      }
-    }
-
-    /**
-     * Update button label when rate changed
-     *
-     * @param {Event} [event]
-     *        The event that caused this function to run.
-     *
-     * @listens Player#ratechange
-     */
-    updateLabel(event) {
-      if (this.playbackRateSupported()) {
-        this.labelEl_.textContent = this.player().playbackRate() + 'x';
-      }
-    }
-  }
-
-  /**
-   * The text that should display over the `PlaybackRateMenuButton`s controls.
-   *
-   * Added for localization.
-   *
-   * @type {string}
-   * @protected
-   */
-  PlaybackRateMenuButton.prototype.controlText_ = 'Playback Rate';
-  Component$1.registerComponent('PlaybackRateMenuButton', PlaybackRateMenuButton);
-
-  /**
-   * @file spacer.js
-   */
-
-  /**
-   * Just an empty spacer element that can be used as an append point for plugins, etc.
-   * Also can be used to create space between elements when necessary.
-   *
-   * @extends Component
-   */
-  class Spacer extends Component$1 {
-    /**
-    * Builds the default DOM `className`.
-    *
-    * @return {string}
-    *         The DOM `className` for this object.
-    */
-    buildCSSClass() {
-      return `vjs-spacer ${super.buildCSSClass()}`;
-    }
-
-    /**
-     * Create the `Component`'s DOM element
-     *
-     * @return {Element}
-     *         The element that was created.
-     */
-    createEl(tag = 'div', props = {}, attributes = {}) {
-      if (!props.className) {
-        props.className = this.buildCSSClass();
-      }
-      return super.createEl(tag, props, attributes);
-    }
-  }
-  Component$1.registerComponent('Spacer', Spacer);
-
-  /**
-   * @file custom-control-spacer.js
-   */
-
-  /**
-   * Spacer specifically meant to be used as an insertion point for new plugins, etc.
-   *
-   * @extends Spacer
-   */
-  class CustomControlSpacer extends Spacer {
-    /**
-     * Builds the default DOM `className`.
-     *
-     * @return {string}
-     *         The DOM `className` for this object.
-     */
-    buildCSSClass() {
-      return `vjs-custom-control-spacer ${super.buildCSSClass()}`;
-    }
-
-    /**
-     * Create the `Component`'s DOM element
-     *
-     * @return {Element}
-     *         The element that was created.
-     */
-    createEl() {
-      return super.createEl('div', {
-        className: this.buildCSSClass(),
-        // No-flex/table-cell mode requires there be some content
-        // in the cell to fill the remaining space of the table.
-        textContent: '\u00a0'
-      });
-    }
-  }
-  Component$1.registerComponent('CustomControlSpacer', CustomControlSpacer);
-
-  /**
-   * @file control-bar.js
-   */
-
-  /**
-   * Container of main controls.
-   *
-   * @extends Component
-   */
-  class ControlBar extends Component$1 {
-    /**
-     * Create the `Component`'s DOM element
-     *
-     * @return {Element}
-     *         The element that was created.
-     */
-    createEl() {
-      return super.createEl('div', {
-        className: 'vjs-control-bar',
-        dir: 'ltr'
-      });
-    }
-  }
-
-  /**
-   * Default options for `ControlBar`
-   *
-   * @type {Object}
-   * @private
-   */
-  ControlBar.prototype.options_ = {
-    children: ['playToggle', 'skipBackward', 'skipForward', 'volumePanel', 'currentTimeDisplay', 'timeDivider', 'durationDisplay', 'progressControl', 'liveDisplay', 'seekToLive', 'remainingTimeDisplay', 'customControlSpacer', 'playbackRateMenuButton', 'chaptersButton', 'descriptionsButton', 'subsCapsButton', 'audioTrackButton', 'pictureInPictureToggle', 'fullscreenToggle']
-  };
-  Component$1.registerComponent('ControlBar', ControlBar);
-
-  /**
-   * @file error-display.js
-   */
-
-  /**
-   * A display that indicates an error has occurred. This means that the video
-   * is unplayable.
-   *
-   * @extends ModalDialog
-   */
-  class ErrorDisplay extends ModalDialog {
-    /**
-     * Creates an instance of this class.
-     *
-     * @param  { import('./player').default } player
-     *         The `Player` that this class should be attached to.
-     *
-     * @param  {Object} [options]
-     *         The key/value store of player options.
-     */
-    constructor(player, options) {
-      super(player, options);
-      this.on(player, 'error', e => {
-        this.open(e);
-      });
-    }
-
-    /**
-     * Builds the default DOM `className`.
-     *
-     * @return {string}
-     *         The DOM `className` for this object.
-     *
-     * @deprecated Since version 5.
-     */
-    buildCSSClass() {
-      return `vjs-error-display ${super.buildCSSClass()}`;
-    }
-
-    /**
-     * Gets the localized error message based on the `Player`s error.
-     *
-     * @return {string}
-     *         The `Player`s error message localized or an empty string.
-     */
-    content() {
-      const error = this.player().error();
-      return error ? this.localize(error.message) : '';
-    }
-  }
-
-  /**
-   * The default options for an `ErrorDisplay`.
-   *
-   * @private
-   */
-  ErrorDisplay.prototype.options_ = Object.assign({}, ModalDialog.prototype.options_, {
-    pauseOnOpen: false,
-    fillAlways: true,
-    temporary: false,
-    uncloseable: true
-  });
-  Component$1.registerComponent('ErrorDisplay', ErrorDisplay);
-
-  /**
-   * @file text-track-settings.js
-   */
-  const LOCAL_STORAGE_KEY$1 = 'vjs-text-track-settings';
-  const COLOR_BLACK = ['#000', 'Black'];
-  const COLOR_BLUE = ['#00F', 'Blue'];
-  const COLOR_CYAN = ['#0FF', 'Cyan'];
-  const COLOR_GREEN = ['#0F0', 'Green'];
-  const COLOR_MAGENTA = ['#F0F', 'Magenta'];
-  const COLOR_RED = ['#F00', 'Red'];
-  const COLOR_WHITE = ['#FFF', 'White'];
-  const COLOR_YELLOW = ['#FF0', 'Yellow'];
-  const OPACITY_OPAQUE = ['1', 'Opaque'];
-  const OPACITY_SEMI = ['0.5', 'Semi-Transparent'];
-  const OPACITY_TRANS = ['0', 'Transparent'];
-
-  // Configuration for the various <select> elements in the DOM of this component.
-  //
-  // Possible keys include:
-  //
-  // `default`:
-  //   The default option index. Only needs to be provided if not zero.
-  // `parser`:
-  //   A function which is used to parse the value from the selected option in
-  //   a customized way.
-  // `selector`:
-  //   The selector used to find the associated <select> element.
-  const selectConfigs = {
-    backgroundColor: {
-      selector: '.vjs-bg-color > select',
-      id: 'captions-background-color-%s',
-      label: 'Color',
-      options: [COLOR_BLACK, COLOR_WHITE, COLOR_RED, COLOR_GREEN, COLOR_BLUE, COLOR_YELLOW, COLOR_MAGENTA, COLOR_CYAN]
-    },
-    backgroundOpacity: {
-      selector: '.vjs-bg-opacity > select',
-      id: 'captions-background-opacity-%s',
-      label: 'Opacity',
-      options: [OPACITY_OPAQUE, OPACITY_SEMI, OPACITY_TRANS]
-    },
-    color: {
-      selector: '.vjs-text-color > select',
-      id: 'captions-foreground-color-%s',
-      label: 'Color',
-      options: [COLOR_WHITE, COLOR_BLACK, COLOR_RED, COLOR_GREEN, COLOR_BLUE, COLOR_YELLOW, COLOR_MAGENTA, COLOR_CYAN]
-    },
-    edgeStyle: {
-      selector: '.vjs-edge-style > select',
-      id: '%s',
-      label: 'Text Edge Style',
-      options: [['none', 'None'], ['raised', 'Raised'], ['depressed', 'Depressed'], ['uniform', 'Uniform'], ['dropshadow', 'Drop shadow']]
-    },
-    fontFamily: {
-      selector: '.vjs-font-family > select',
-      id: 'captions-font-family-%s',
-      label: 'Font Family',
-      options: [['proportionalSansSerif', 'Proportional Sans-Serif'], ['monospaceSansSerif', 'Monospace Sans-Serif'], ['proportionalSerif', 'Proportional Serif'], ['monospaceSerif', 'Monospace Serif'], ['casual', 'Casual'], ['script', 'Script'], ['small-caps', 'Small Caps']]
-    },
-    fontPercent: {
-      selector: '.vjs-font-percent > select',
-      id: 'captions-font-size-%s',
-      label: 'Font Size',
-      options: [['0.50', '50%'], ['0.75', '75%'], ['1.00', '100%'], ['1.25', '125%'], ['1.50', '150%'], ['1.75', '175%'], ['2.00', '200%'], ['3.00', '300%'], ['4.00', '400%']],
-      default: 2,
-      parser: v => v === '1.00' ? null : Number(v)
-    },
-    textOpacity: {
-      selector: '.vjs-text-opacity > select',
-      id: 'captions-foreground-opacity-%s',
-      label: 'Opacity',
-      options: [OPACITY_OPAQUE, OPACITY_SEMI]
-    },
-    // Options for this object are defined below.
-    windowColor: {
-      selector: '.vjs-window-color > select',
-      id: 'captions-window-color-%s',
-      label: 'Color'
-    },
-    // Options for this object are defined below.
-    windowOpacity: {
-      selector: '.vjs-window-opacity > select',
-      id: 'captions-window-opacity-%s',
-      label: 'Opacity',
-      options: [OPACITY_TRANS, OPACITY_SEMI, OPACITY_OPAQUE]
-    }
-  };
-  selectConfigs.windowColor.options = selectConfigs.backgroundColor.options;
-
-  /**
-   * Get the actual value of an option.
-   *
-   * @param  {string} value
-   *         The value to get
-   *
-   * @param  {Function} [parser]
-   *         Optional function to adjust the value.
-   *
-   * @return {*}
-   *         - Will be `undefined` if no value exists
-   *         - Will be `undefined` if the given value is "none".
-   *         - Will be the actual value otherwise.
-   *
-   * @private
-   */
-  function parseOptionValue(value, parser) {
-    if (parser) {
-      value = parser(value);
-    }
-    if (value && value !== 'none') {
-      return value;
-    }
-  }
-
-  /**
-   * Gets the value of the selected <option> element within a <select> element.
-   *
-   * @param  {Element} el
-   *         the element to look in
-   *
-   * @param  {Function} [parser]
-   *         Optional function to adjust the value.
-   *
-   * @return {*}
-   *         - Will be `undefined` if no value exists
-   *         - Will be `undefined` if the given value is "none".
-   *         - Will be the actual value otherwise.
-   *
-   * @private
-   */
-  function getSelectedOptionValue(el, parser) {
-    const value = el.options[el.options.selectedIndex].value;
-    return parseOptionValue(value, parser);
-  }
-
-  /**
-   * Sets the selected <option> element within a <select> element based on a
-   * given value.
-   *
-   * @param {Element} el
-   *        The element to look in.
-   *
-   * @param {string} value
-   *        the property to look on.
-   *
-   * @param {Function} [parser]
-   *        Optional function to adjust the value before comparing.
-   *
-   * @private
-   */
-  function setSelectedOption(el, value, parser) {
-    if (!value) {
-      return;
-    }
-    for (let i = 0; i < el.options.length; i++) {
-      if (parseOptionValue(el.options[i].value, parser) === value) {
-        el.selectedIndex = i;
-        break;
-      }
-    }
-  }
-
-  /**
-   * Manipulate Text Tracks settings.
-   *
-   * @extends ModalDialog
-   */
-  class TextTrackSettings extends ModalDialog {
-    /**
-     * Creates an instance of this class.
-     *
-     * @param { import('../player').default } player
-     *         The `Player` that this class should be attached to.
-     *
-     * @param {Object} [options]
-     *         The key/value store of player options.
-     */
-    constructor(player, options) {
-      options.temporary = false;
-      super(player, options);
-      this.updateDisplay = this.updateDisplay.bind(this);
-
-      // fill the modal and pretend we have opened it
-      this.fill();
-      this.hasBeenOpened_ = this.hasBeenFilled_ = true;
-      this.endDialog = createEl('p', {
-        className: 'vjs-control-text',
-        textContent: this.localize('End of dialog window.')
-      });
-      this.el().appendChild(this.endDialog);
-      this.setDefaults();
-
-      // Grab `persistTextTrackSettings` from the player options if not passed in child options
-      if (options.persistTextTrackSettings === undefined) {
-        this.options_.persistTextTrackSettings = this.options_.playerOptions.persistTextTrackSettings;
-      }
-      this.on(this.$('.vjs-done-button'), 'click', () => {
-        this.saveSettings();
-        this.close();
-      });
-      this.on(this.$('.vjs-default-button'), 'click', () => {
-        this.setDefaults();
-        this.updateDisplay();
-      });
-      each(selectConfigs, config => {
-        this.on(this.$(config.selector), 'change', this.updateDisplay);
-      });
-      if (this.options_.persistTextTrackSettings) {
-        this.restoreSettings();
-      }
-    }
-    dispose() {
-      this.endDialog = null;
-      super.dispose();
-    }
-
-    /**
-     * Create a <select> element with configured options.
-     *
-     * @param {string} key
-     *        Configuration key to use during creation.
-     *
-     * @param {string} [legendId]
-     *        Id of associated <legend>.
-     *
-     * @param {string} [type=label]
-     *        Type of labelling element, `label` or `legend`
-     *
-     * @return {string}
-     *         An HTML string.
-     *
-     * @private
-     */
-    createElSelect_(key, legendId = '', type = 'label') {
-      const config = selectConfigs[key];
-      const id = config.id.replace('%s', this.id_);
-      const selectLabelledbyIds = [legendId, id].join(' ').trim();
-      const guid = `vjs_select_${newGUID()}`;
-      return [`<${type} id="${id}"${type === 'label' ? ` for="${guid}" class="vjs-label"` : ''}>`, this.localize(config.label), `</${type}>`, `<select aria-labelledby="${selectLabelledbyIds}" id="${guid}">`].concat(config.options.map(o => {
-        const optionId = id + '-' + o[1].replace(/\W+/g, '');
-        return [`<option id="${optionId}" value="${o[0]}" `, `aria-labelledby="${selectLabelledbyIds} ${optionId}">`, this.localize(o[1]), '</option>'].join('');
-      })).concat('</select>').join('');
-    }
-
-    /**
-     * Create foreground color element for the component
-     *
-     * @return {string}
-     *         An HTML string.
-     *
-     * @private
-     */
-    createElFgColor_() {
-      const legendId = `captions-text-legend-${this.id_}`;
-      return ['<fieldset class="vjs-fg vjs-track-setting">', `<legend id="${legendId}">`, this.localize('Text'), '</legend>', '<span class="vjs-text-color">', this.createElSelect_('color', legendId), '</span>', '<span class="vjs-text-opacity vjs-opacity">', this.createElSelect_('textOpacity', legendId), '</span>', '</fieldset>'].join('');
-    }
-
-    /**
-     * Create background color element for the component
-     *
-     * @return {string}
-     *         An HTML string.
-     *
-     * @private
-     */
-    createElBgColor_() {
-      const legendId = `captions-background-${this.id_}`;
-      return ['<fieldset class="vjs-bg vjs-track-setting">', `<legend id="${legendId}">`, this.localize('Text Background'), '</legend>', '<span class="vjs-bg-color">', this.createElSelect_('backgroundColor', legendId), '</span>', '<span class="vjs-bg-opacity vjs-opacity">', this.createElSelect_('backgroundOpacity', legendId), '</span>', '</fieldset>'].join('');
-    }
-
-    /**
-     * Create window color element for the component
-     *
-     * @return {string}
-     *         An HTML string.
-     *
-     * @private
-     */
-    createElWinColor_() {
-      const legendId = `captions-window-${this.id_}`;
-      return ['<fieldset class="vjs-window vjs-track-setting">', `<legend id="${legendId}">`, this.localize('Caption Area Background'), '</legend>', '<span class="vjs-window-color">', this.createElSelect_('windowColor', legendId), '</span>', '<span class="vjs-window-opacity vjs-opacity">', this.createElSelect_('windowOpacity', legendId), '</span>', '</fieldset>'].join('');
-    }
-
-    /**
-     * Create color elements for the component
-     *
-     * @return {Element}
-     *         The element that was created
-     *
-     * @private
-     */
-    createElColors_() {
-      return createEl('div', {
-        className: 'vjs-track-settings-colors',
-        innerHTML: [this.createElFgColor_(), this.createElBgColor_(), this.createElWinColor_()].join('')
-      });
-    }
-
-    /**
-     * Create font elements for the component
-     *
-     * @return {Element}
-     *         The element that was created.
-     *
-     * @private
-     */
-    createElFont_() {
-      return createEl('div', {
-        className: 'vjs-track-settings-font',
-        innerHTML: ['<fieldset class="vjs-font-percent vjs-track-setting">', this.createElSelect_('fontPercent', '', 'legend'), '</fieldset>', '<fieldset class="vjs-edge-style vjs-track-setting">', this.createElSelect_('edgeStyle', '', 'legend'), '</fieldset>', '<fieldset class="vjs-font-family vjs-track-setting">', this.createElSelect_('fontFamily', '', 'legend'), '</fieldset>'].join('')
-      });
-    }
-
-    /**
-     * Create controls for the component
-     *
-     * @return {Element}
-     *         The element that was created.
-     *
-     * @private
-     */
-    createElControls_() {
-      const defaultsDescription = this.localize('restore all settings to the default values');
-      return createEl('div', {
-        className: 'vjs-track-settings-controls',
-        innerHTML: [`<button type="button" class="vjs-default-button" title="${defaultsDescription}">`, this.localize('Reset'), `<span class="vjs-control-text"> ${defaultsDescription}</span>`, '</button>', `<button type="button" class="vjs-done-button">${this.localize('Done')}</button>`].join('')
-      });
-    }
-    content() {
-      return [this.createElColors_(), this.createElFont_(), this.createElControls_()];
-    }
-    label() {
-      return this.localize('Caption Settings Dialog');
-    }
-    description() {
-      return this.localize('Beginning of dialog window. Escape will cancel and close the window.');
-    }
-    buildCSSClass() {
-      return super.buildCSSClass() + ' vjs-text-track-settings';
-    }
-
-    /**
-     * Gets an object of text track settings (or null).
-     *
-     * @return {Object}
-     *         An object with config values parsed from the DOM or localStorage.
-     */
-    getValues() {
-      return reduce(selectConfigs, (accum, config, key) => {
-        const value = getSelectedOptionValue(this.$(config.selector), config.parser);
-        if (value !== undefined) {
-          accum[key] = value;
-        }
-        return accum;
-      }, {});
-    }
-
-    /**
-     * Sets text track settings from an object of values.
-     *
-     * @param {Object} values
-     *        An object with config values parsed from the DOM or localStorage.
-     */
-    setValues(values) {
-      each(selectConfigs, (config, key) => {
-        setSelectedOption(this.$(config.selector), values[key], config.parser);
-      });
-    }
-
-    /**
-     * Sets all `<select>` elements to their default values.
-     */
-    setDefaults() {
-      each(selectConfigs, config => {
-        const index = config.hasOwnProperty('default') ? config.default : 0;
-        this.$(config.selector).selectedIndex = index;
-      });
-    }
-
-    /**
-     * Restore texttrack settings from localStorage
-     */
-    restoreSettings() {
-      let values;
-      try {
-        values = JSON.parse(window.localStorage.getItem(LOCAL_STORAGE_KEY$1));
-      } catch (err) {
-        log$1.warn(err);
-      }
-      if (values) {
-        this.setValues(values);
-      }
-    }
-
-    /**
-     * Save text track settings to localStorage
-     */
-    saveSettings() {
-      if (!this.options_.persistTextTrackSettings) {
-        return;
-      }
-      const values = this.getValues();
-      try {
-        if (Object.keys(values).length) {
-          window.localStorage.setItem(LOCAL_STORAGE_KEY$1, JSON.stringify(values));
-        } else {
-          window.localStorage.removeItem(LOCAL_STORAGE_KEY$1);
-        }
-      } catch (err) {
-        log$1.warn(err);
-      }
-    }
-
-    /**
-     * Update display of text track settings
-     */
-    updateDisplay() {
-      const ttDisplay = this.player_.getChild('textTrackDisplay');
-      if (ttDisplay) {
-        ttDisplay.updateDisplay();
-      }
-    }
-
-    /**
-     * conditionally blur the element and refocus the captions button
-     *
-     * @private
-     */
-    conditionalBlur_() {
-      this.previouslyActiveEl_ = null;
-      const cb = this.player_.controlBar;
-      const subsCapsBtn = cb && cb.subsCapsButton;
-      const ccBtn = cb && cb.captionsButton;
-      if (subsCapsBtn) {
-        subsCapsBtn.focus();
-      } else if (ccBtn) {
-        ccBtn.focus();
-      }
-    }
-
-    /**
-     * Repopulate dialog with new localizations on languagechange
-     */
-    handleLanguagechange() {
-      this.fill();
-    }
-  }
-  Component$1.registerComponent('TextTrackSettings', TextTrackSettings);
-
-  /**
-   * @file resize-manager.js
-   */
-
-  /**
-   * A Resize Manager. It is in charge of triggering `playerresize` on the player in the right conditions.
-   *
-   * It'll either create an iframe and use a debounced resize handler on it or use the new {@link https://wicg.github.io/ResizeObserver/|ResizeObserver}.
-   *
-   * If the ResizeObserver is available natively, it will be used. A polyfill can be passed in as an option.
-   * If a `playerresize` event is not needed, the ResizeManager component can be removed from the player, see the example below.
-   *
-   * @example <caption>How to disable the resize manager</caption>
-   * const player = videojs('#vid', {
-   *   resizeManager: false
-   * });
-   *
-   * @see {@link https://wicg.github.io/ResizeObserver/|ResizeObserver specification}
-   *
-   * @extends Component
-   */
-  class ResizeManager extends Component$1 {
-    /**
-     * Create the ResizeManager.
-     *
-     * @param {Object} player
-     *        The `Player` that this class should be attached to.
-     *
-     * @param {Object} [options]
-     *        The key/value store of ResizeManager options.
-     *
-     * @param {Object} [options.ResizeObserver]
-     *        A polyfill for ResizeObserver can be passed in here.
-     *        If this is set to null it will ignore the native ResizeObserver and fall back to the iframe fallback.
-     */
-    constructor(player, options) {
-      let RESIZE_OBSERVER_AVAILABLE = options.ResizeObserver || window.ResizeObserver;
-
-      // if `null` was passed, we want to disable the ResizeObserver
-      if (options.ResizeObserver === null) {
-        RESIZE_OBSERVER_AVAILABLE = false;
-      }
-
-      // Only create an element when ResizeObserver isn't available
-      const options_ = merge$2({
-        createEl: !RESIZE_OBSERVER_AVAILABLE,
-        reportTouchActivity: false
-      }, options);
-      super(player, options_);
-      this.ResizeObserver = options.ResizeObserver || window.ResizeObserver;
-      this.loadListener_ = null;
-      this.resizeObserver_ = null;
-      this.debouncedHandler_ = debounce(() => {
-        this.resizeHandler();
-      }, 100, false, this);
-      if (RESIZE_OBSERVER_AVAILABLE) {
-        this.resizeObserver_ = new this.ResizeObserver(this.debouncedHandler_);
-        this.resizeObserver_.observe(player.el());
-      } else {
-        this.loadListener_ = () => {
-          if (!this.el_ || !this.el_.contentWindow) {
-            return;
-          }
-          const debouncedHandler_ = this.debouncedHandler_;
-          let unloadListener_ = this.unloadListener_ = function () {
-            off(this, 'resize', debouncedHandler_);
-            off(this, 'unload', unloadListener_);
-            unloadListener_ = null;
-          };
-
-          // safari and edge can unload the iframe before resizemanager dispose
-          // we have to dispose of event handlers correctly before that happens
-          on(this.el_.contentWindow, 'unload', unloadListener_);
-          on(this.el_.contentWindow, 'resize', debouncedHandler_);
-        };
-        this.one('load', this.loadListener_);
-      }
-    }
-    createEl() {
-      return super.createEl('iframe', {
-        className: 'vjs-resize-manager',
-        tabIndex: -1,
-        title: this.localize('No content')
-      }, {
-        'aria-hidden': 'true'
-      });
-    }
-
-    /**
-     * Called when a resize is triggered on the iframe or a resize is observed via the ResizeObserver
-     *
-     * @fires Player#playerresize
-     */
-    resizeHandler() {
-      /**
-       * Called when the player size has changed
-       *
-       * @event Player#playerresize
-       * @type {Event}
-       */
-      // make sure player is still around to trigger
-      // prevents this from causing an error after dispose
-      if (!this.player_ || !this.player_.trigger) {
-        return;
-      }
-      this.player_.trigger('playerresize');
-    }
-    dispose() {
-      if (this.debouncedHandler_) {
-        this.debouncedHandler_.cancel();
-      }
-      if (this.resizeObserver_) {
-        if (this.player_.el()) {
-          this.resizeObserver_.unobserve(this.player_.el());
-        }
-        this.resizeObserver_.disconnect();
-      }
-      if (this.loadListener_) {
-        this.off('load', this.loadListener_);
-      }
-      if (this.el_ && this.el_.contentWindow && this.unloadListener_) {
-        this.unloadListener_.call(this.el_.contentWindow);
-      }
-      this.ResizeObserver = null;
-      this.resizeObserver = null;
-      this.debouncedHandler_ = null;
-      this.loadListener_ = null;
-      super.dispose();
-    }
-  }
-  Component$1.registerComponent('ResizeManager', ResizeManager);
-
-  const defaults = {
-    trackingThreshold: 20,
-    liveTolerance: 15
-  };
-
-  /*
-    track when we are at the live edge, and other helpers for live playback */
-
-  /**
-   * A class for checking live current time and determining when the player
-   * is at or behind the live edge.
-   */
-  class LiveTracker extends Component$1 {
-    /**
-     * Creates an instance of this class.
-     *
-     * @param { import('./player').default } player
-     *        The `Player` that this class should be attached to.
-     *
-     * @param {Object} [options]
-     *        The key/value store of player options.
-     *
-     * @param {number} [options.trackingThreshold=20]
-     *        Number of seconds of live window (seekableEnd - seekableStart) that
-     *        media needs to have before the liveui will be shown.
-     *
-     * @param {number} [options.liveTolerance=15]
-     *        Number of seconds behind live that we have to be
-     *        before we will be considered non-live. Note that this will only
-     *        be used when playing at the live edge. This allows large seekable end
-     *        changes to not effect whether we are live or not.
-     */
-    constructor(player, options) {
-      // LiveTracker does not need an element
-      const options_ = merge$2(defaults, options, {
-        createEl: false
-      });
-      super(player, options_);
-      this.trackLiveHandler_ = () => this.trackLive_();
-      this.handlePlay_ = e => this.handlePlay(e);
-      this.handleFirstTimeupdate_ = e => this.handleFirstTimeupdate(e);
-      this.handleSeeked_ = e => this.handleSeeked(e);
-      this.seekToLiveEdge_ = e => this.seekToLiveEdge(e);
-      this.reset_();
-      this.on(this.player_, 'durationchange', e => this.handleDurationchange(e));
-      // we should try to toggle tracking on canplay as native playback engines, like Safari
-      // may not have the proper values for things like seekableEnd until then
-      this.on(this.player_, 'canplay', () => this.toggleTracking());
-    }
-
-    /**
-     * all the functionality for tracking when seek end changes
-     * and for tracking how far past seek end we should be
-     */
-    trackLive_() {
-      const seekable = this.player_.seekable();
-
-      // skip undefined seekable
-      if (!seekable || !seekable.length) {
-        return;
-      }
-      const newTime = Number(window.performance.now().toFixed(4));
-      const deltaTime = this.lastTime_ === -1 ? 0 : (newTime - this.lastTime_) / 1000;
-      this.lastTime_ = newTime;
-      this.pastSeekEnd_ = this.pastSeekEnd() + deltaTime;
-      const liveCurrentTime = this.liveCurrentTime();
-      const currentTime = this.player_.currentTime();
-
-      // we are behind live if any are true
-      // 1. the player is paused
-      // 2. the user seeked to a location 2 seconds away from live
-      // 3. the difference between live and current time is greater
-      //    liveTolerance which defaults to 15s
-      let isBehind = this.player_.paused() || this.seekedBehindLive_ || Math.abs(liveCurrentTime - currentTime) > this.options_.liveTolerance;
-
-      // we cannot be behind if
-      // 1. until we have not seen a timeupdate yet
-      // 2. liveCurrentTime is Infinity, which happens on Android and Native Safari
-      if (!this.timeupdateSeen_ || liveCurrentTime === Infinity) {
-        isBehind = false;
-      }
-      if (isBehind !== this.behindLiveEdge_) {
-        this.behindLiveEdge_ = isBehind;
-        this.trigger('liveedgechange');
-      }
-    }
-
-    /**
-     * handle a durationchange event on the player
-     * and start/stop tracking accordingly.
-     */
-    handleDurationchange() {
-      this.toggleTracking();
-    }
-
-    /**
-     * start/stop tracking
-     */
-    toggleTracking() {
-      if (this.player_.duration() === Infinity && this.liveWindow() >= this.options_.trackingThreshold) {
-        if (this.player_.options_.liveui) {
-          this.player_.addClass('vjs-liveui');
-        }
-        this.startTracking();
-      } else {
-        this.player_.removeClass('vjs-liveui');
-        this.stopTracking();
-      }
-    }
-
-    /**
-     * start tracking live playback
-     */
-    startTracking() {
-      if (this.isTracking()) {
-        return;
-      }
-
-      // If we haven't seen a timeupdate, we need to check whether playback
-      // began before this component started tracking. This can happen commonly
-      // when using autoplay.
-      if (!this.timeupdateSeen_) {
-        this.timeupdateSeen_ = this.player_.hasStarted();
-      }
-      this.trackingInterval_ = this.setInterval(this.trackLiveHandler_, UPDATE_REFRESH_INTERVAL);
-      this.trackLive_();
-      this.on(this.player_, ['play', 'pause'], this.trackLiveHandler_);
-      if (!this.timeupdateSeen_) {
-        this.one(this.player_, 'play', this.handlePlay_);
-        this.one(this.player_, 'timeupdate', this.handleFirstTimeupdate_);
-      } else {
-        this.on(this.player_, 'seeked', this.handleSeeked_);
-      }
-    }
-
-    /**
-     * handle the first timeupdate on the player if it wasn't already playing
-     * when live tracker started tracking.
-     */
-    handleFirstTimeupdate() {
-      this.timeupdateSeen_ = true;
-      this.on(this.player_, 'seeked', this.handleSeeked_);
-    }
-
-    /**
-     * Keep track of what time a seek starts, and listen for seeked
-     * to find where a seek ends.
-     */
-    handleSeeked() {
-      const timeDiff = Math.abs(this.liveCurrentTime() - this.player_.currentTime());
-      this.seekedBehindLive_ = this.nextSeekedFromUser_ && timeDiff > 2;
-      this.nextSeekedFromUser_ = false;
-      this.trackLive_();
-    }
-
-    /**
-     * handle the first play on the player, and make sure that we seek
-     * right to the live edge.
-     */
-    handlePlay() {
-      this.one(this.player_, 'timeupdate', this.seekToLiveEdge_);
-    }
-
-    /**
-     * Stop tracking, and set all internal variables to
-     * their initial value.
-     */
-    reset_() {
-      this.lastTime_ = -1;
-      this.pastSeekEnd_ = 0;
-      this.lastSeekEnd_ = -1;
-      this.behindLiveEdge_ = true;
-      this.timeupdateSeen_ = false;
-      this.seekedBehindLive_ = false;
-      this.nextSeekedFromUser_ = false;
-      this.clearInterval(this.trackingInterval_);
-      this.trackingInterval_ = null;
-      this.off(this.player_, ['play', 'pause'], this.trackLiveHandler_);
-      this.off(this.player_, 'seeked', this.handleSeeked_);
-      this.off(this.player_, 'play', this.handlePlay_);
-      this.off(this.player_, 'timeupdate', this.handleFirstTimeupdate_);
-      this.off(this.player_, 'timeupdate', this.seekToLiveEdge_);
-    }
-
-    /**
-     * The next seeked event is from the user. Meaning that any seek
-     * > 2s behind live will be considered behind live for real and
-     * liveTolerance will be ignored.
-     */
-    nextSeekedFromUser() {
-      this.nextSeekedFromUser_ = true;
-    }
-
-    /**
-     * stop tracking live playback
-     */
-    stopTracking() {
-      if (!this.isTracking()) {
-        return;
-      }
-      this.reset_();
-      this.trigger('liveedgechange');
-    }
-
-    /**
-     * A helper to get the player seekable end
-     * so that we don't have to null check everywhere
-     *
-     * @return {number}
-     *         The furthest seekable end or Infinity.
-     */
-    seekableEnd() {
-      const seekable = this.player_.seekable();
-      const seekableEnds = [];
-      let i = seekable ? seekable.length : 0;
-      while (i--) {
-        seekableEnds.push(seekable.end(i));
-      }
-
-      // grab the furthest seekable end after sorting, or if there are none
-      // default to Infinity
-      return seekableEnds.length ? seekableEnds.sort()[seekableEnds.length - 1] : Infinity;
-    }
-
-    /**
-     * A helper to get the player seekable start
-     * so that we don't have to null check everywhere
-     *
-     * @return {number}
-     *         The earliest seekable start or 0.
-     */
-    seekableStart() {
-      const seekable = this.player_.seekable();
-      const seekableStarts = [];
-      let i = seekable ? seekable.length : 0;
-      while (i--) {
-        seekableStarts.push(seekable.start(i));
-      }
-
-      // grab the first seekable start after sorting, or if there are none
-      // default to 0
-      return seekableStarts.length ? seekableStarts.sort()[0] : 0;
-    }
-
-    /**
-     * Get the live time window aka
-     * the amount of time between seekable start and
-     * live current time.
-     *
-     * @return {number}
-     *         The amount of seconds that are seekable in
-     *         the live video.
-     */
-    liveWindow() {
-      const liveCurrentTime = this.liveCurrentTime();
-
-      // if liveCurrenTime is Infinity then we don't have a liveWindow at all
-      if (liveCurrentTime === Infinity) {
-        return 0;
-      }
-      return liveCurrentTime - this.seekableStart();
-    }
-
-    /**
-     * Determines if the player is live, only checks if this component
-     * is tracking live playback or not
-     *
-     * @return {boolean}
-     *         Whether liveTracker is tracking
-     */
-    isLive() {
-      return this.isTracking();
-    }
-
-    /**
-     * Determines if currentTime is at the live edge and won't fall behind
-     * on each seekableendchange
-     *
-     * @return {boolean}
-     *         Whether playback is at the live edge
-     */
-    atLiveEdge() {
-      return !this.behindLiveEdge();
-    }
-
-    /**
-     * get what we expect the live current time to be
-     *
-     * @return {number}
-     *         The expected live current time
-     */
-    liveCurrentTime() {
-      return this.pastSeekEnd() + this.seekableEnd();
-    }
-
-    /**
-     * The number of seconds that have occurred after seekable end
-     * changed. This will be reset to 0 once seekable end changes.
-     *
-     * @return {number}
-     *         Seconds past the current seekable end
-     */
-    pastSeekEnd() {
-      const seekableEnd = this.seekableEnd();
-      if (this.lastSeekEnd_ !== -1 && seekableEnd !== this.lastSeekEnd_) {
-        this.pastSeekEnd_ = 0;
-      }
-      this.lastSeekEnd_ = seekableEnd;
-      return this.pastSeekEnd_;
-    }
-
-    /**
-     * If we are currently behind the live edge, aka currentTime will be
-     * behind on a seekableendchange
-     *
-     * @return {boolean}
-     *         If we are behind the live edge
-     */
-    behindLiveEdge() {
-      return this.behindLiveEdge_;
-    }
-
-    /**
-     * Whether live tracker is currently tracking or not.
-     */
-    isTracking() {
-      return typeof this.trackingInterval_ === 'number';
-    }
-
-    /**
-     * Seek to the live edge if we are behind the live edge
-     */
-    seekToLiveEdge() {
-      this.seekedBehindLive_ = false;
-      if (this.atLiveEdge()) {
-        return;
-      }
-      this.nextSeekedFromUser_ = false;
-      this.player_.currentTime(this.liveCurrentTime());
-    }
-
-    /**
-     * Dispose of liveTracker
-     */
-    dispose() {
-      this.stopTracking();
-      super.dispose();
-    }
-  }
-  Component$1.registerComponent('LiveTracker', LiveTracker);
-
-  /**
-   * Displays an element over the player which contains an optional title and
-   * description for the current content.
-   *
-   * Much of the code for this component originated in the now obsolete
-   * videojs-dock plugin: https://github.com/brightcove/videojs-dock/
-   *
-   * @extends Component
-   */
-  class TitleBar extends Component$1 {
-    constructor(player, options) {
-      super(player, options);
-      this.on('statechanged', e => this.updateDom_());
-      this.updateDom_();
-    }
-
-    /**
-     * Create the `TitleBar`'s DOM element
-     *
-     * @return {Element}
-     *         The element that was created.
-     */
-    createEl() {
-      this.els = {
-        title: createEl('div', {
-          className: 'vjs-title-bar-title',
-          id: `vjs-title-bar-title-${newGUID()}`
-        }),
-        description: createEl('div', {
-          className: 'vjs-title-bar-description',
-          id: `vjs-title-bar-description-${newGUID()}`
-        })
-      };
-      return createEl('div', {
-        className: 'vjs-title-bar'
-      }, {}, values$1(this.els));
-    }
-
-    /**
-     * Updates the DOM based on the component's state object.
-     */
-    updateDom_() {
-      const tech = this.player_.tech_;
-      const techEl = tech && tech.el_;
-      const techAriaAttrs = {
-        title: 'aria-labelledby',
-        description: 'aria-describedby'
-      };
-      ['title', 'description'].forEach(k => {
-        const value = this.state[k];
-        const el = this.els[k];
-        const techAriaAttr = techAriaAttrs[k];
-        emptyEl(el);
-        if (value) {
-          textContent(el, value);
-        }
-
-        // If there is a tech element available, update its ARIA attributes
-        // according to whether a title and/or description have been provided.
-        if (techEl) {
-          techEl.removeAttribute(techAriaAttr);
-          if (value) {
-            techEl.setAttribute(techAriaAttr, el.id);
-          }
-        }
-      });
-      if (this.state.title || this.state.description) {
-        this.show();
-      } else {
-        this.hide();
-      }
-    }
-
-    /**
-     * Update the contents of the title bar component with new title and
-     * description text.
-     *
-     * If both title and description are missing, the title bar will be hidden.
-     *
-     * If either title or description are present, the title bar will be visible.
-     *
-     * NOTE: Any previously set value will be preserved. To unset a previously
-     * set value, you must pass an empty string or null.
-     *
-     * For example:
-     *
-     * ```
-     * update({title: 'foo', description: 'bar'}) // title: 'foo', description: 'bar'
-     * update({description: 'bar2'}) // title: 'foo', description: 'bar2'
-     * update({title: ''}) // title: '', description: 'bar2'
-     * update({title: 'foo', description: null}) // title: 'foo', description: null
-     * ```
-     *
-     * @param  {Object} [options={}]
-     *         An options object. When empty, the title bar will be hidden.
-     *
-     * @param  {string} [options.title]
-     *         A title to display in the title bar.
-     *
-     * @param  {string} [options.description]
-     *         A description to display in the title bar.
-     */
-    update(options) {
-      this.setState(options);
-    }
-
-    /**
-     * Dispose the component.
-     */
-    dispose() {
-      const tech = this.player_.tech_;
-      const techEl = tech && tech.el_;
-      if (techEl) {
-        techEl.removeAttribute('aria-labelledby');
-        techEl.removeAttribute('aria-describedby');
-      }
-      super.dispose();
-      this.els = null;
-    }
-  }
-  Component$1.registerComponent('TitleBar', TitleBar);
-
-  /**
-   * This function is used to fire a sourceset when there is something
-   * similar to `mediaEl.load()` being called. It will try to find the source via
-   * the `src` attribute and then the `<source>` elements. It will then fire `sourceset`
-   * with the source that was found or empty string if we cannot know. If it cannot
-   * find a source then `sourceset` will not be fired.
-   *
-   * @param { import('./html5').default } tech
-   *        The tech object that sourceset was setup on
-   *
-   * @return {boolean}
-   *         returns false if the sourceset was not fired and true otherwise.
-   */
-  const sourcesetLoad = tech => {
-    const el = tech.el();
-
-    // if `el.src` is set, that source will be loaded.
-    if (el.hasAttribute('src')) {
-      tech.triggerSourceset(el.src);
-      return true;
-    }
-
-    /**
-     * Since there isn't a src property on the media element, source elements will be used for
-     * implementing the source selection algorithm. This happens asynchronously and
-     * for most cases were there is more than one source we cannot tell what source will
-     * be loaded, without re-implementing the source selection algorithm. At this time we are not
-     * going to do that. There are three special cases that we do handle here though:
-     *
-     * 1. If there are no sources, do not fire `sourceset`.
-     * 2. If there is only one `<source>` with a `src` property/attribute that is our `src`
-     * 3. If there is more than one `<source>` but all of them have the same `src` url.
-     *    That will be our src.
-     */
-    const sources = tech.$$('source');
-    const srcUrls = [];
-    let src = '';
-
-    // if there are no sources, do not fire sourceset
-    if (!sources.length) {
-      return false;
-    }
-
-    // only count valid/non-duplicate source elements
-    for (let i = 0; i < sources.length; i++) {
-      const url = sources[i].src;
-      if (url && srcUrls.indexOf(url) === -1) {
-        srcUrls.push(url);
-      }
-    }
-
-    // there were no valid sources
-    if (!srcUrls.length) {
-      return false;
-    }
-
-    // there is only one valid source element url
-    // use that
-    if (srcUrls.length === 1) {
-      src = srcUrls[0];
-    }
-    tech.triggerSourceset(src);
-    return true;
-  };
-
-  /**
-   * our implementation of an `innerHTML` descriptor for browsers
-   * that do not have one.
-   */
-  const innerHTMLDescriptorPolyfill = Object.defineProperty({}, 'innerHTML', {
-    get() {
-      return this.cloneNode(true).innerHTML;
-    },
-    set(v) {
-      // make a dummy node to use innerHTML on
-      const dummy = document.createElement(this.nodeName.toLowerCase());
-
-      // set innerHTML to the value provided
-      dummy.innerHTML = v;
-
-      // make a document fragment to hold the nodes from dummy
-      const docFrag = document.createDocumentFragment();
-
-      // copy all of the nodes created by the innerHTML on dummy
-      // to the document fragment
-      while (dummy.childNodes.length) {
-        docFrag.appendChild(dummy.childNodes[0]);
-      }
-
-      // remove content
-      this.innerText = '';
-
-      // now we add all of that html in one by appending the
-      // document fragment. This is how innerHTML does it.
-      window.Element.prototype.appendChild.call(this, docFrag);
-
-      // then return the result that innerHTML's setter would
-      return this.innerHTML;
-    }
-  });
-
-  /**
-   * Get a property descriptor given a list of priorities and the
-   * property to get.
-   */
-  const getDescriptor = (priority, prop) => {
-    let descriptor = {};
-    for (let i = 0; i < priority.length; i++) {
-      descriptor = Object.getOwnPropertyDescriptor(priority[i], prop);
-      if (descriptor && descriptor.set && descriptor.get) {
-        break;
-      }
-    }
-    descriptor.enumerable = true;
-    descriptor.configurable = true;
-    return descriptor;
-  };
-  const getInnerHTMLDescriptor = tech => getDescriptor([tech.el(), window.HTMLMediaElement.prototype, window.Element.prototype, innerHTMLDescriptorPolyfill], 'innerHTML');
-
-  /**
-   * Patches browser internal functions so that we can tell synchronously
-   * if a `<source>` was appended to the media element. For some reason this
-   * causes a `sourceset` if the the media element is ready and has no source.
-   * This happens when:
-   * - The page has just loaded and the media element does not have a source.
-   * - The media element was emptied of all sources, then `load()` was called.
-   *
-   * It does this by patching the following functions/properties when they are supported:
-   *
-   * - `append()` - can be used to add a `<source>` element to the media element
-   * - `appendChild()` - can be used to add a `<source>` element to the media element
-   * - `insertAdjacentHTML()` -  can be used to add a `<source>` element to the media element
-   * - `innerHTML` -  can be used to add a `<source>` element to the media element
-   *
-   * @param {Html5} tech
-   *        The tech object that sourceset is being setup on.
-   */
-  const firstSourceWatch = function (tech) {
-    const el = tech.el();
-
-    // make sure firstSourceWatch isn't setup twice.
-    if (el.resetSourceWatch_) {
-      return;
-    }
-    const old = {};
-    const innerDescriptor = getInnerHTMLDescriptor(tech);
-    const appendWrapper = appendFn => (...args) => {
-      const retval = appendFn.apply(el, args);
-      sourcesetLoad(tech);
-      return retval;
-    };
-    ['append', 'appendChild', 'insertAdjacentHTML'].forEach(k => {
-      if (!el[k]) {
-        return;
-      }
-
-      // store the old function
-      old[k] = el[k];
-
-      // call the old function with a sourceset if a source
-      // was loaded
-      el[k] = appendWrapper(old[k]);
-    });
-    Object.defineProperty(el, 'innerHTML', merge$2(innerDescriptor, {
-      set: appendWrapper(innerDescriptor.set)
-    }));
-    el.resetSourceWatch_ = () => {
-      el.resetSourceWatch_ = null;
-      Object.keys(old).forEach(k => {
-        el[k] = old[k];
-      });
-      Object.defineProperty(el, 'innerHTML', innerDescriptor);
-    };
-
-    // on the first sourceset, we need to revert our changes
-    tech.one('sourceset', el.resetSourceWatch_);
-  };
-
-  /**
-   * our implementation of a `src` descriptor for browsers
-   * that do not have one
-   */
-  const srcDescriptorPolyfill = Object.defineProperty({}, 'src', {
-    get() {
-      if (this.hasAttribute('src')) {
-        return getAbsoluteURL(window.Element.prototype.getAttribute.call(this, 'src'));
-      }
-      return '';
-    },
-    set(v) {
-      window.Element.prototype.setAttribute.call(this, 'src', v);
-      return v;
-    }
-  });
-  const getSrcDescriptor = tech => getDescriptor([tech.el(), window.HTMLMediaElement.prototype, srcDescriptorPolyfill], 'src');
-
-  /**
-   * setup `sourceset` handling on the `Html5` tech. This function
-   * patches the following element properties/functions:
-   *
-   * - `src` - to determine when `src` is set
-   * - `setAttribute()` - to determine when `src` is set
-   * - `load()` - this re-triggers the source selection algorithm, and can
-   *              cause a sourceset.
-   *
-   * If there is no source when we are adding `sourceset` support or during a `load()`
-   * we also patch the functions listed in `firstSourceWatch`.
-   *
-   * @param {Html5} tech
-   *        The tech to patch
-   */
-  const setupSourceset = function (tech) {
-    if (!tech.featuresSourceset) {
-      return;
-    }
-    const el = tech.el();
-
-    // make sure sourceset isn't setup twice.
-    if (el.resetSourceset_) {
-      return;
-    }
-    const srcDescriptor = getSrcDescriptor(tech);
-    const oldSetAttribute = el.setAttribute;
-    const oldLoad = el.load;
-    Object.defineProperty(el, 'src', merge$2(srcDescriptor, {
-      set: v => {
-        const retval = srcDescriptor.set.call(el, v);
-
-        // we use the getter here to get the actual value set on src
-        tech.triggerSourceset(el.src);
-        return retval;
-      }
-    }));
-    el.setAttribute = (n, v) => {
-      const retval = oldSetAttribute.call(el, n, v);
-      if (/src/i.test(n)) {
-        tech.triggerSourceset(el.src);
-      }
-      return retval;
-    };
-    el.load = () => {
-      const retval = oldLoad.call(el);
-
-      // if load was called, but there was no source to fire
-      // sourceset on. We have to watch for a source append
-      // as that can trigger a `sourceset` when the media element
-      // has no source
-      if (!sourcesetLoad(tech)) {
-        tech.triggerSourceset('');
-        firstSourceWatch(tech);
-      }
-      return retval;
-    };
-    if (el.currentSrc) {
-      tech.triggerSourceset(el.currentSrc);
-    } else if (!sourcesetLoad(tech)) {
-      firstSourceWatch(tech);
-    }
-    el.resetSourceset_ = () => {
-      el.resetSourceset_ = null;
-      el.load = oldLoad;
-      el.setAttribute = oldSetAttribute;
-      Object.defineProperty(el, 'src', srcDescriptor);
-      if (el.resetSourceWatch_) {
-        el.resetSourceWatch_();
-      }
-    };
-  };
-
-  /**
-   * @file html5.js
-   */
-
-  /**
-   * HTML5 Media Controller - Wrapper for HTML5 Media API
-   *
-   * @mixes Tech~SourceHandlerAdditions
-   * @extends Tech
-   */
-  class Html5 extends Tech {
-    /**
-    * Create an instance of this Tech.
-    *
-    * @param {Object} [options]
-    *        The key/value store of player options.
-    *
-    * @param {Function} [ready]
-    *        Callback function to call when the `HTML5` Tech is ready.
-    */
-    constructor(options, ready) {
-      super(options, ready);
-      const source = options.source;
-      let crossoriginTracks = false;
-      this.featuresVideoFrameCallback = this.featuresVideoFrameCallback && this.el_.tagName === 'VIDEO';
-
-      // Set the source if one is provided
-      // 1) Check if the source is new (if not, we want to keep the original so playback isn't interrupted)
-      // 2) Check to see if the network state of the tag was failed at init, and if so, reset the source
-      // anyway so the error gets fired.
-      if (source && (this.el_.currentSrc !== source.src || options.tag && options.tag.initNetworkState_ === 3)) {
-        this.setSource(source);
-      } else {
-        this.handleLateInit_(this.el_);
-      }
-
-      // setup sourceset after late sourceset/init
-      if (options.enableSourceset) {
-        this.setupSourcesetHandling_();
-      }
-      this.isScrubbing_ = false;
-      if (this.el_.hasChildNodes()) {
-        const nodes = this.el_.childNodes;
-        let nodesLength = nodes.length;
-        const removeNodes = [];
-        while (nodesLength--) {
-          const node = nodes[nodesLength];
-          const nodeName = node.nodeName.toLowerCase();
-          if (nodeName === 'track') {
-            if (!this.featuresNativeTextTracks) {
-              // Empty video tag tracks so the built-in player doesn't use them also.
-              // This may not be fast enough to stop HTML5 browsers from reading the tags
-              // so we'll need to turn off any default tracks if we're manually doing
-              // captions and subtitles. videoElement.textTracks
-              removeNodes.push(node);
-            } else {
-              // store HTMLTrackElement and TextTrack to remote list
-              this.remoteTextTrackEls().addTrackElement_(node);
-              this.remoteTextTracks().addTrack(node.track);
-              this.textTracks().addTrack(node.track);
-              if (!crossoriginTracks && !this.el_.hasAttribute('crossorigin') && isCrossOrigin(node.src)) {
-                crossoriginTracks = true;
-              }
-            }
-          }
-        }
-        for (let i = 0; i < removeNodes.length; i++) {
-          this.el_.removeChild(removeNodes[i]);
-        }
-      }
-      this.proxyNativeTracks_();
-      if (this.featuresNativeTextTracks && crossoriginTracks) {
-        log$1.warn('Text Tracks are being loaded from another origin but the crossorigin attribute isn\'t used.\n' + 'This may prevent text tracks from loading.');
-      }
-
-      // prevent iOS Safari from disabling metadata text tracks during native playback
-      this.restoreMetadataTracksInIOSNativePlayer_();
-
-      // Determine if native controls should be used
-      // Our goal should be to get the custom controls on mobile solid everywhere
-      // so we can remove this all together. Right now this will block custom
-      // controls on touch enabled laptops like the Chrome Pixel
-      if ((TOUCH_ENABLED || IS_IPHONE) && options.nativeControlsForTouch === true) {
-        this.setControls(true);
-      }
-
-      // on iOS, we want to proxy `webkitbeginfullscreen` and `webkitendfullscreen`
-      // into a `fullscreenchange` event
-      this.proxyWebkitFullscreen_();
-      this.triggerReady();
-    }
-
-    /**
-     * Dispose of `HTML5` media element and remove all tracks.
-     */
-    dispose() {
-      if (this.el_ && this.el_.resetSourceset_) {
-        this.el_.resetSourceset_();
-      }
-      Html5.disposeMediaElement(this.el_);
-      this.options_ = null;
-
-      // tech will handle clearing of the emulated track list
-      super.dispose();
-    }
-
-    /**
-     * Modify the media element so that we can detect when
-     * the source is changed. Fires `sourceset` just after the source has changed
-     */
-    setupSourcesetHandling_() {
-      setupSourceset(this);
-    }
-
-    /**
-     * When a captions track is enabled in the iOS Safari native player, all other
-     * tracks are disabled (including metadata tracks), which nulls all of their
-     * associated cue points. This will restore metadata tracks to their pre-fullscreen
-     * state in those cases so that cue points are not needlessly lost.
-     *
-     * @private
-     */
-    restoreMetadataTracksInIOSNativePlayer_() {
-      const textTracks = this.textTracks();
-      let metadataTracksPreFullscreenState;
-
-      // captures a snapshot of every metadata track's current state
-      const takeMetadataTrackSnapshot = () => {
-        metadataTracksPreFullscreenState = [];
-        for (let i = 0; i < textTracks.length; i++) {
-          const track = textTracks[i];
-          if (track.kind === 'metadata') {
-            metadataTracksPreFullscreenState.push({
-              track,
-              storedMode: track.mode
-            });
-          }
-        }
-      };
-
-      // snapshot each metadata track's initial state, and update the snapshot
-      // each time there is a track 'change' event
-      takeMetadataTrackSnapshot();
-      textTracks.addEventListener('change', takeMetadataTrackSnapshot);
-      this.on('dispose', () => textTracks.removeEventListener('change', takeMetadataTrackSnapshot));
-      const restoreTrackMode = () => {
-        for (let i = 0; i < metadataTracksPreFullscreenState.length; i++) {
-          const storedTrack = metadataTracksPreFullscreenState[i];
-          if (storedTrack.track.mode === 'disabled' && storedTrack.track.mode !== storedTrack.storedMode) {
-            storedTrack.track.mode = storedTrack.storedMode;
-          }
-        }
-        // we only want this handler to be executed on the first 'change' event
-        textTracks.removeEventListener('change', restoreTrackMode);
-      };
-
-      // when we enter fullscreen playback, stop updating the snapshot and
-      // restore all track modes to their pre-fullscreen state
-      this.on('webkitbeginfullscreen', () => {
-        textTracks.removeEventListener('change', takeMetadataTrackSnapshot);
-
-        // remove the listener before adding it just in case it wasn't previously removed
-        textTracks.removeEventListener('change', restoreTrackMode);
-        textTracks.addEventListener('change', restoreTrackMode);
-      });
-
-      // start updating the snapshot again after leaving fullscreen
-      this.on('webkitendfullscreen', () => {
-        // remove the listener before adding it just in case it wasn't previously removed
-        textTracks.removeEventListener('change', takeMetadataTrackSnapshot);
-        textTracks.addEventListener('change', takeMetadataTrackSnapshot);
-
-        // remove the restoreTrackMode handler in case it wasn't triggered during fullscreen playback
-        textTracks.removeEventListener('change', restoreTrackMode);
-      });
-    }
-
-    /**
-     * Attempt to force override of tracks for the given type
-     *
-     * @param {string} type - Track type to override, possible values include 'Audio',
-     * 'Video', and 'Text'.
-     * @param {boolean} override - If set to true native audio/video will be overridden,
-     * otherwise native audio/video will potentially be used.
-     * @private
-     */
-    overrideNative_(type, override) {
-      // If there is no behavioral change don't add/remove listeners
-      if (override !== this[`featuresNative${type}Tracks`]) {
-        return;
-      }
-      const lowerCaseType = type.toLowerCase();
-      if (this[`${lowerCaseType}TracksListeners_`]) {
-        Object.keys(this[`${lowerCaseType}TracksListeners_`]).forEach(eventName => {
-          const elTracks = this.el()[`${lowerCaseType}Tracks`];
-          elTracks.removeEventListener(eventName, this[`${lowerCaseType}TracksListeners_`][eventName]);
-        });
-      }
-      this[`featuresNative${type}Tracks`] = !override;
-      this[`${lowerCaseType}TracksListeners_`] = null;
-      this.proxyNativeTracksForType_(lowerCaseType);
-    }
-
-    /**
-     * Attempt to force override of native audio tracks.
-     *
-     * @param {boolean} override - If set to true native audio will be overridden,
-     * otherwise native audio will potentially be used.
-     */
-    overrideNativeAudioTracks(override) {
-      this.overrideNative_('Audio', override);
-    }
-
-    /**
-     * Attempt to force override of native video tracks.
-     *
-     * @param {boolean} override - If set to true native video will be overridden,
-     * otherwise native video will potentially be used.
-     */
-    overrideNativeVideoTracks(override) {
-      this.overrideNative_('Video', override);
-    }
-
-    /**
-     * Proxy native track list events for the given type to our track
-     * lists if the browser we are playing in supports that type of track list.
-     *
-     * @param {string} name - Track type; values include 'audio', 'video', and 'text'
-     * @private
-     */
-    proxyNativeTracksForType_(name) {
-      const props = NORMAL[name];
-      const elTracks = this.el()[props.getterName];
-      const techTracks = this[props.getterName]();
-      if (!this[`featuresNative${props.capitalName}Tracks`] || !elTracks || !elTracks.addEventListener) {
-        return;
-      }
-      const listeners = {
-        change: e => {
-          const event = {
-            type: 'change',
-            target: techTracks,
-            currentTarget: techTracks,
-            srcElement: techTracks
-          };
-          techTracks.trigger(event);
-
-          // if we are a text track change event, we should also notify the
-          // remote text track list. This can potentially cause a false positive
-          // if we were to get a change event on a non-remote track and
-          // we triggered the event on the remote text track list which doesn't
-          // contain that track. However, best practices mean looping through the
-          // list of tracks and searching for the appropriate mode value, so,
-          // this shouldn't pose an issue
-          if (name === 'text') {
-            this[REMOTE.remoteText.getterName]().trigger(event);
-          }
-        },
-        addtrack(e) {
-          techTracks.addTrack(e.track);
-        },
-        removetrack(e) {
-          techTracks.removeTrack(e.track);
-        }
-      };
-      const removeOldTracks = function () {
-        const removeTracks = [];
-        for (let i = 0; i < techTracks.length; i++) {
-          let found = false;
-          for (let j = 0; j < elTracks.length; j++) {
-            if (elTracks[j] === techTracks[i]) {
-              found = true;
-              break;
-            }
-          }
-          if (!found) {
-            removeTracks.push(techTracks[i]);
-          }
-        }
-        while (removeTracks.length) {
-          techTracks.removeTrack(removeTracks.shift());
-        }
-      };
-      this[props.getterName + 'Listeners_'] = listeners;
-      Object.keys(listeners).forEach(eventName => {
-        const listener = listeners[eventName];
-        elTracks.addEventListener(eventName, listener);
-        this.on('dispose', e => elTracks.removeEventListener(eventName, listener));
-      });
-
-      // Remove (native) tracks that are not used anymore
-      this.on('loadstart', removeOldTracks);
-      this.on('dispose', e => this.off('loadstart', removeOldTracks));
-    }
-
-    /**
-     * Proxy all native track list events to our track lists if the browser we are playing
-     * in supports that type of track list.
-     *
-     * @private
-     */
-    proxyNativeTracks_() {
-      NORMAL.names.forEach(name => {
-        this.proxyNativeTracksForType_(name);
-      });
-    }
-
-    /**
-     * Create the `Html5` Tech's DOM element.
-     *
-     * @return {Element}
-     *         The element that gets created.
-     */
-    createEl() {
-      let el = this.options_.tag;
-
-      // Check if this browser supports moving the element into the box.
-      // On the iPhone video will break if you move the element,
-      // So we have to create a brand new element.
-      // If we ingested the player div, we do not need to move the media element.
-      if (!el || !(this.options_.playerElIngest || this.movingMediaElementInDOM)) {
-        // If the original tag is still there, clone and remove it.
-        if (el) {
-          const clone = el.cloneNode(true);
-          if (el.parentNode) {
-            el.parentNode.insertBefore(clone, el);
-          }
-          Html5.disposeMediaElement(el);
-          el = clone;
-        } else {
-          el = document.createElement('video');
-
-          // determine if native controls should be used
-          const tagAttributes = this.options_.tag && getAttributes(this.options_.tag);
-          const attributes = merge$2({}, tagAttributes);
-          if (!TOUCH_ENABLED || this.options_.nativeControlsForTouch !== true) {
-            delete attributes.controls;
-          }
-          setAttributes(el, Object.assign(attributes, {
-            id: this.options_.techId,
-            class: 'vjs-tech'
-          }));
-        }
-        el.playerId = this.options_.playerId;
-      }
-      if (typeof this.options_.preload !== 'undefined') {
-        setAttribute(el, 'preload', this.options_.preload);
-      }
-      if (this.options_.disablePictureInPicture !== undefined) {
-        el.disablePictureInPicture = this.options_.disablePictureInPicture;
-      }
-
-      // Update specific tag settings, in case they were overridden
-      // `autoplay` has to be *last* so that `muted` and `playsinline` are present
-      // when iOS/Safari or other browsers attempt to autoplay.
-      const settingsAttrs = ['loop', 'muted', 'playsinline', 'autoplay'];
-      for (let i = 0; i < settingsAttrs.length; i++) {
-        const attr = settingsAttrs[i];
-        const value = this.options_[attr];
-        if (typeof value !== 'undefined') {
-          if (value) {
-            setAttribute(el, attr, attr);
-          } else {
-            removeAttribute(el, attr);
-          }
-          el[attr] = value;
-        }
-      }
-      return el;
-    }
-
-    /**
-     * This will be triggered if the loadstart event has already fired, before videojs was
-     * ready. Two known examples of when this can happen are:
-     * 1. If we're loading the playback object after it has started loading
-     * 2. The media is already playing the (often with autoplay on) then
-     *
-     * This function will fire another loadstart so that videojs can catchup.
-     *
-     * @fires Tech#loadstart
-     *
-     * @return {undefined}
-     *         returns nothing.
-     */
-    handleLateInit_(el) {
-      if (el.networkState === 0 || el.networkState === 3) {
-        // The video element hasn't started loading the source yet
-        // or didn't find a source
-        return;
-      }
-      if (el.readyState === 0) {
-        // NetworkState is set synchronously BUT loadstart is fired at the
-        // end of the current stack, usually before setInterval(fn, 0).
-        // So at this point we know loadstart may have already fired or is
-        // about to fire, and either way the player hasn't seen it yet.
-        // We don't want to fire loadstart prematurely here and cause a
-        // double loadstart so we'll wait and see if it happens between now
-        // and the next loop, and fire it if not.
-        // HOWEVER, we also want to make sure it fires before loadedmetadata
-        // which could also happen between now and the next loop, so we'll
-        // watch for that also.
-        let loadstartFired = false;
-        const setLoadstartFired = function () {
-          loadstartFired = true;
-        };
-        this.on('loadstart', setLoadstartFired);
-        const triggerLoadstart = function () {
-          // We did miss the original loadstart. Make sure the player
-          // sees loadstart before loadedmetadata
-          if (!loadstartFired) {
-            this.trigger('loadstart');
-          }
-        };
-        this.on('loadedmetadata', triggerLoadstart);
-        this.ready(function () {
-          this.off('loadstart', setLoadstartFired);
-          this.off('loadedmetadata', triggerLoadstart);
-          if (!loadstartFired) {
-            // We did miss the original native loadstart. Fire it now.
-            this.trigger('loadstart');
-          }
-        });
-        return;
-      }
-
-      // From here on we know that loadstart already fired and we missed it.
-      // The other readyState events aren't as much of a problem if we double
-      // them, so not going to go to as much trouble as loadstart to prevent
-      // that unless we find reason to.
-      const eventsToTrigger = ['loadstart'];
-
-      // loadedmetadata: newly equal to HAVE_METADATA (1) or greater
-      eventsToTrigger.push('loadedmetadata');
-
-      // loadeddata: newly increased to HAVE_CURRENT_DATA (2) or greater
-      if (el.readyState >= 2) {
-        eventsToTrigger.push('loadeddata');
-      }
-
-      // canplay: newly increased to HAVE_FUTURE_DATA (3) or greater
-      if (el.readyState >= 3) {
-        eventsToTrigger.push('canplay');
-      }
-
-      // canplaythrough: newly equal to HAVE_ENOUGH_DATA (4)
-      if (el.readyState >= 4) {
-        eventsToTrigger.push('canplaythrough');
-      }
-
-      // We still need to give the player time to add event listeners
-      this.ready(function () {
-        eventsToTrigger.forEach(function (type) {
-          this.trigger(type);
-        }, this);
-      });
-    }
-
-    /**
-     * Set whether we are scrubbing or not.
-     * This is used to decide whether we should use `fastSeek` or not.
-     * `fastSeek` is used to provide trick play on Safari browsers.
-     *
-     * @param {boolean} isScrubbing
-     *                  - true for we are currently scrubbing
-     *                  - false for we are no longer scrubbing
-     */
-    setScrubbing(isScrubbing) {
-      this.isScrubbing_ = isScrubbing;
-    }
-
-    /**
-     * Get whether we are scrubbing or not.
-     *
-     * @return {boolean} isScrubbing
-     *                  - true for we are currently scrubbing
-     *                  - false for we are no longer scrubbing
-     */
-    scrubbing() {
-      return this.isScrubbing_;
-    }
-
-    /**
-     * Set current time for the `HTML5` tech.
-     *
-     * @param {number} seconds
-     *        Set the current time of the media to this.
-     */
-    setCurrentTime(seconds) {
-      try {
-        if (this.isScrubbing_ && this.el_.fastSeek && IS_ANY_SAFARI) {
-          this.el_.fastSeek(seconds);
-        } else {
-          this.el_.currentTime = seconds;
-        }
-      } catch (e) {
-        log$1(e, 'Video is not ready. (Video.js)');
-        // this.warning(VideoJS.warnings.videoNotReady);
-      }
-    }
-
-    /**
-     * Get the current duration of the HTML5 media element.
-     *
-     * @return {number}
-     *         The duration of the media or 0 if there is no duration.
-     */
-    duration() {
-      // Android Chrome will report duration as Infinity for VOD HLS until after
-      // playback has started, which triggers the live display erroneously.
-      // Return NaN if playback has not started and trigger a durationupdate once
-      // the duration can be reliably known.
-      if (this.el_.duration === Infinity && IS_ANDROID && IS_CHROME && this.el_.currentTime === 0) {
-        // Wait for the first `timeupdate` with currentTime > 0 - there may be
-        // several with 0
-        const checkProgress = () => {
-          if (this.el_.currentTime > 0) {
-            // Trigger durationchange for genuinely live video
-            if (this.el_.duration === Infinity) {
-              this.trigger('durationchange');
-            }
-            this.off('timeupdate', checkProgress);
-          }
-        };
-        this.on('timeupdate', checkProgress);
-        return NaN;
-      }
-      return this.el_.duration || NaN;
-    }
-
-    /**
-     * Get the current width of the HTML5 media element.
-     *
-     * @return {number}
-     *         The width of the HTML5 media element.
-     */
-    width() {
-      return this.el_.offsetWidth;
-    }
-
-    /**
-     * Get the current height of the HTML5 media element.
-     *
-     * @return {number}
-     *         The height of the HTML5 media element.
-     */
-    height() {
-      return this.el_.offsetHeight;
-    }
-
-    /**
-     * Proxy iOS `webkitbeginfullscreen` and `webkitendfullscreen` into
-     * `fullscreenchange` event.
-     *
-     * @private
-     * @fires fullscreenchange
-     * @listens webkitendfullscreen
-     * @listens webkitbeginfullscreen
-     * @listens webkitbeginfullscreen
-     */
-    proxyWebkitFullscreen_() {
-      if (!('webkitDisplayingFullscreen' in this.el_)) {
-        return;
-      }
-      const endFn = function () {
-        this.trigger('fullscreenchange', {
-          isFullscreen: false
-        });
-        // Safari will sometimes set controls on the videoelement when existing fullscreen.
-        if (this.el_.controls && !this.options_.nativeControlsForTouch && this.controls()) {
-          this.el_.controls = false;
-        }
-      };
-      const beginFn = function () {
-        if ('webkitPresentationMode' in this.el_ && this.el_.webkitPresentationMode !== 'picture-in-picture') {
-          this.one('webkitendfullscreen', endFn);
-          this.trigger('fullscreenchange', {
-            isFullscreen: true,
-            // set a flag in case another tech triggers fullscreenchange
-            nativeIOSFullscreen: true
-          });
-        }
-      };
-      this.on('webkitbeginfullscreen', beginFn);
-      this.on('dispose', () => {
-        this.off('webkitbeginfullscreen', beginFn);
-        this.off('webkitendfullscreen', endFn);
-      });
-    }
-
-    /**
-     * Check if fullscreen is supported on the video el.
-     *
-     * @return {boolean}
-     *         - True if fullscreen is supported.
-     *         - False if fullscreen is not supported.
-     */
-    supportsFullScreen() {
-      return typeof this.el_.webkitEnterFullScreen === 'function';
-    }
-
-    /**
-     * Request that the `HTML5` Tech enter fullscreen.
-     */
-    enterFullScreen() {
-      const video = this.el_;
-      if (video.paused && video.networkState <= video.HAVE_METADATA) {
-        // attempt to prime the video element for programmatic access
-        // this isn't necessary on the desktop but shouldn't hurt
-        silencePromise(this.el_.play());
-
-        // playing and pausing synchronously during the transition to fullscreen
-        // can get iOS ~6.1 devices into a play/pause loop
-        this.setTimeout(function () {
-          video.pause();
-          try {
-            video.webkitEnterFullScreen();
-          } catch (e) {
-            this.trigger('fullscreenerror', e);
-          }
-        }, 0);
-      } else {
-        try {
-          video.webkitEnterFullScreen();
-        } catch (e) {
-          this.trigger('fullscreenerror', e);
-        }
-      }
-    }
-
-    /**
-     * Request that the `HTML5` Tech exit fullscreen.
-     */
-    exitFullScreen() {
-      if (!this.el_.webkitDisplayingFullscreen) {
-        this.trigger('fullscreenerror', new Error('The video is not fullscreen'));
-        return;
-      }
-      this.el_.webkitExitFullScreen();
-    }
-
-    /**
-     * Create a floating video window always on top of other windows so that users may
-     * continue consuming media while they interact with other content sites, or
-     * applications on their device.
-     *
-     * @see [Spec]{@link https://wicg.github.io/picture-in-picture}
-     *
-     * @return {Promise}
-     *         A promise with a Picture-in-Picture window.
-     */
-    requestPictureInPicture() {
-      return this.el_.requestPictureInPicture();
-    }
-
-    /**
-     * Native requestVideoFrameCallback if supported by browser/tech, or fallback
-     * Don't use rVCF on Safari when DRM is playing, as it doesn't fire
-     * Needs to be checked later than the constructor
-     * This will be a false positive for clear sources loaded after a Fairplay source
-     *
-     * @param {function} cb function to call
-     * @return {number} id of request
-     */
-    requestVideoFrameCallback(cb) {
-      if (this.featuresVideoFrameCallback && !this.el_.webkitKeys) {
-        return this.el_.requestVideoFrameCallback(cb);
-      }
-      return super.requestVideoFrameCallback(cb);
-    }
-
-    /**
-     * Native or fallback requestVideoFrameCallback
-     *
-     * @param {number} id request id to cancel
-     */
-    cancelVideoFrameCallback(id) {
-      if (this.featuresVideoFrameCallback && !this.el_.webkitKeys) {
-        this.el_.cancelVideoFrameCallback(id);
-      } else {
-        super.cancelVideoFrameCallback(id);
-      }
-    }
-
-    /**
-     * A getter/setter for the `Html5` Tech's source object.
-     * > Note: Please use {@link Html5#setSource}
-     *
-     * @param {Tech~SourceObject} [src]
-     *        The source object you want to set on the `HTML5` techs element.
-     *
-     * @return {Tech~SourceObject|undefined}
-     *         - The current source object when a source is not passed in.
-     *         - undefined when setting
-     *
-     * @deprecated Since version 5.
-     */
-    src(src) {
-      if (src === undefined) {
-        return this.el_.src;
-      }
-
-      // Setting src through `src` instead of `setSrc` will be deprecated
-      this.setSrc(src);
-    }
-
-    /**
-     * Reset the tech by removing all sources and then calling
-     * {@link Html5.resetMediaElement}.
-     */
-    reset() {
-      Html5.resetMediaElement(this.el_);
-    }
-
-    /**
-     * Get the current source on the `HTML5` Tech. Falls back to returning the source from
-     * the HTML5 media element.
-     *
-     * @return {Tech~SourceObject}
-     *         The current source object from the HTML5 tech. With a fallback to the
-     *         elements source.
-     */
-    currentSrc() {
-      if (this.currentSource_) {
-        return this.currentSource_.src;
-      }
-      return this.el_.currentSrc;
-    }
-
-    /**
-     * Set controls attribute for the HTML5 media Element.
-     *
-     * @param {string} val
-     *        Value to set the controls attribute to
-     */
-    setControls(val) {
-      this.el_.controls = !!val;
-    }
-
-    /**
-     * Create and returns a remote {@link TextTrack} object.
-     *
-     * @param {string} kind
-     *        `TextTrack` kind (subtitles, captions, descriptions, chapters, or metadata)
-     *
-     * @param {string} [label]
-     *        Label to identify the text track
-     *
-     * @param {string} [language]
-     *        Two letter language abbreviation
-     *
-     * @return {TextTrack}
-     *         The TextTrack that gets created.
-     */
-    addTextTrack(kind, label, language) {
-      if (!this.featuresNativeTextTracks) {
-        return super.addTextTrack(kind, label, language);
-      }
-      return this.el_.addTextTrack(kind, label, language);
-    }
-
-    /**
-     * Creates either native TextTrack or an emulated TextTrack depending
-     * on the value of `featuresNativeTextTracks`
-     *
-     * @param {Object} options
-     *        The object should contain the options to initialize the TextTrack with.
-     *
-     * @param {string} [options.kind]
-     *        `TextTrack` kind (subtitles, captions, descriptions, chapters, or metadata).
-     *
-     * @param {string} [options.label]
-     *        Label to identify the text track
-     *
-     * @param {string} [options.language]
-     *        Two letter language abbreviation.
-     *
-     * @param {boolean} [options.default]
-     *        Default this track to on.
-     *
-     * @param {string} [options.id]
-     *        The internal id to assign this track.
-     *
-     * @param {string} [options.src]
-     *        A source url for the track.
-     *
-     * @return {HTMLTrackElement}
-     *         The track element that gets created.
-     */
-    createRemoteTextTrack(options) {
-      if (!this.featuresNativeTextTracks) {
-        return super.createRemoteTextTrack(options);
-      }
-      const htmlTrackElement = document.createElement('track');
-      if (options.kind) {
-        htmlTrackElement.kind = options.kind;
-      }
-      if (options.label) {
-        htmlTrackElement.label = options.label;
-      }
-      if (options.language || options.srclang) {
-        htmlTrackElement.srclang = options.language || options.srclang;
-      }
-      if (options.default) {
-        htmlTrackElement.default = options.default;
-      }
-      if (options.id) {
-        htmlTrackElement.id = options.id;
-      }
-      if (options.src) {
-        htmlTrackElement.src = options.src;
-      }
-      return htmlTrackElement;
-    }
-
-    /**
-     * Creates a remote text track object and returns an html track element.
-     *
-     * @param {Object} options The object should contain values for
-     * kind, language, label, and src (location of the WebVTT file)
-     * @param {boolean} [manualCleanup=false] if set to true, the TextTrack
-     * will not be removed from the TextTrackList and HtmlTrackElementList
-     * after a source change
-     * @return {HTMLTrackElement} An Html Track Element.
-     * This can be an emulated {@link HTMLTrackElement} or a native one.
-     *
-     */
-    addRemoteTextTrack(options, manualCleanup) {
-      const htmlTrackElement = super.addRemoteTextTrack(options, manualCleanup);
-      if (this.featuresNativeTextTracks) {
-        this.el().appendChild(htmlTrackElement);
-      }
-      return htmlTrackElement;
-    }
-
-    /**
-     * Remove remote `TextTrack` from `TextTrackList` object
-     *
-     * @param {TextTrack} track
-     *        `TextTrack` object to remove
-     */
-    removeRemoteTextTrack(track) {
-      super.removeRemoteTextTrack(track);
-      if (this.featuresNativeTextTracks) {
-        const tracks = this.$$('track');
-        let i = tracks.length;
-        while (i--) {
-          if (track === tracks[i] || track === tracks[i].track) {
-            this.el().removeChild(tracks[i]);
-          }
-        }
-      }
-    }
-
-    /**
-     * Gets available media playback quality metrics as specified by the W3C's Media
-     * Playback Quality API.
-     *
-     * @see [Spec]{@link https://wicg.github.io/media-playback-quality}
-     *
-     * @return {Object}
-     *         An object with supported media playback quality metrics
-     */
-    getVideoPlaybackQuality() {
-      if (typeof this.el().getVideoPlaybackQuality === 'function') {
-        return this.el().getVideoPlaybackQuality();
-      }
-      const videoPlaybackQuality = {};
-      if (typeof this.el().webkitDroppedFrameCount !== 'undefined' && typeof this.el().webkitDecodedFrameCount !== 'undefined') {
-        videoPlaybackQuality.droppedVideoFrames = this.el().webkitDroppedFrameCount;
-        videoPlaybackQuality.totalVideoFrames = this.el().webkitDecodedFrameCount;
-      }
-      if (window.performance) {
-        videoPlaybackQuality.creationTime = window.performance.now();
-      }
-      return videoPlaybackQuality;
-    }
-  }
-
-  /* HTML5 Support Testing ---------------------------------------------------- */
-
-  /**
-   * Element for testing browser HTML5 media capabilities
-   *
-   * @type {Element}
-   * @constant
-   * @private
-   */
-  defineLazyProperty(Html5, 'TEST_VID', function () {
-    if (!isReal()) {
-      return;
-    }
-    const video = document.createElement('video');
-    const track = document.createElement('track');
-    track.kind = 'captions';
-    track.srclang = 'en';
-    track.label = 'English';
-    video.appendChild(track);
-    return video;
-  });
-
-  /**
-   * Check if HTML5 media is supported by this browser/device.
-   *
-   * @return {boolean}
-   *         - True if HTML5 media is supported.
-   *         - False if HTML5 media is not supported.
-   */
-  Html5.isSupported = function () {
-    // IE with no Media Player is a LIAR! (#984)
-    try {
-      Html5.TEST_VID.volume = 0.5;
-    } catch (e) {
-      return false;
-    }
-    return !!(Html5.TEST_VID && Html5.TEST_VID.canPlayType);
-  };
-
-  /**
-   * Check if the tech can support the given type
-   *
-   * @param {string} type
-   *        The mimetype to check
-   * @return {string} 'probably', 'maybe', or '' (empty string)
-   */
-  Html5.canPlayType = function (type) {
-    return Html5.TEST_VID.canPlayType(type);
-  };
-
-  /**
-   * Check if the tech can support the given source
-   *
-   * @param {Object} srcObj
-   *        The source object
-   * @param {Object} options
-   *        The options passed to the tech
-   * @return {string} 'probably', 'maybe', or '' (empty string)
-   */
-  Html5.canPlaySource = function (srcObj, options) {
-    return Html5.canPlayType(srcObj.type);
-  };
-
-  /**
-   * Check if the volume can be changed in this browser/device.
-   * Volume cannot be changed in a lot of mobile devices.
-   * Specifically, it can't be changed from 1 on iOS.
-   *
-   * @return {boolean}
-   *         - True if volume can be controlled
-   *         - False otherwise
-   */
-  Html5.canControlVolume = function () {
-    // IE will error if Windows Media Player not installed #3315
-    try {
-      const volume = Html5.TEST_VID.volume;
-      Html5.TEST_VID.volume = volume / 2 + 0.1;
-      const canControl = volume !== Html5.TEST_VID.volume;
-
-      // With the introduction of iOS 15, there are cases where the volume is read as
-      // changed but reverts back to its original state at the start of the next tick.
-      // To determine whether volume can be controlled on iOS,
-      // a timeout is set and the volume is checked asynchronously.
-      // Since `features` doesn't currently work asynchronously, the value is manually set.
-      if (canControl && IS_IOS) {
-        window.setTimeout(() => {
-          if (Html5 && Html5.prototype) {
-            Html5.prototype.featuresVolumeControl = volume !== Html5.TEST_VID.volume;
-          }
-        });
-
-        // default iOS to false, which will be updated in the timeout above.
-        return false;
-      }
-      return canControl;
-    } catch (e) {
-      return false;
-    }
-  };
-
-  /**
-   * Check if the volume can be muted in this browser/device.
-   * Some devices, e.g. iOS, don't allow changing volume
-   * but permits muting/unmuting.
-   *
-   * @return {boolean}
-   *      - True if volume can be muted
-   *      - False otherwise
-   */
-  Html5.canMuteVolume = function () {
-    try {
-      const muted = Html5.TEST_VID.muted;
-
-      // in some versions of iOS muted property doesn't always
-      // work, so we want to set both property and attribute
-      Html5.TEST_VID.muted = !muted;
-      if (Html5.TEST_VID.muted) {
-        setAttribute(Html5.TEST_VID, 'muted', 'muted');
-      } else {
-        removeAttribute(Html5.TEST_VID, 'muted', 'muted');
-      }
-      return muted !== Html5.TEST_VID.muted;
-    } catch (e) {
-      return false;
-    }
-  };
-
-  /**
-   * Check if the playback rate can be changed in this browser/device.
-   *
-   * @return {boolean}
-   *         - True if playback rate can be controlled
-   *         - False otherwise
-   */
-  Html5.canControlPlaybackRate = function () {
-    // Playback rate API is implemented in Android Chrome, but doesn't do anything
-    // https://github.com/videojs/video.js/issues/3180
-    if (IS_ANDROID && IS_CHROME && CHROME_VERSION < 58) {
-      return false;
-    }
-    // IE will error if Windows Media Player not installed #3315
-    try {
-      const playbackRate = Html5.TEST_VID.playbackRate;
-      Html5.TEST_VID.playbackRate = playbackRate / 2 + 0.1;
-      return playbackRate !== Html5.TEST_VID.playbackRate;
-    } catch (e) {
-      return false;
-    }
-  };
-
-  /**
-   * Check if we can override a video/audio elements attributes, with
-   * Object.defineProperty.
-   *
-   * @return {boolean}
-   *         - True if builtin attributes can be overridden
-   *         - False otherwise
-   */
-  Html5.canOverrideAttributes = function () {
-    // if we cannot overwrite the src/innerHTML property, there is no support
-    // iOS 7 safari for instance cannot do this.
-    try {
-      const noop = () => {};
-      Object.defineProperty(document.createElement('video'), 'src', {
-        get: noop,
-        set: noop
-      });
-      Object.defineProperty(document.createElement('audio'), 'src', {
-        get: noop,
-        set: noop
-      });
-      Object.defineProperty(document.createElement('video'), 'innerHTML', {
-        get: noop,
-        set: noop
-      });
-      Object.defineProperty(document.createElement('audio'), 'innerHTML', {
-        get: noop,
-        set: noop
-      });
-    } catch (e) {
-      return false;
-    }
-    return true;
-  };
-
-  /**
-   * Check to see if native `TextTrack`s are supported by this browser/device.
-   *
-   * @return {boolean}
-   *         - True if native `TextTrack`s are supported.
-   *         - False otherwise
-   */
-  Html5.supportsNativeTextTracks = function () {
-    return IS_ANY_SAFARI || IS_IOS && IS_CHROME;
-  };
-
-  /**
-   * Check to see if native `VideoTrack`s are supported by this browser/device
-   *
-   * @return {boolean}
-   *        - True if native `VideoTrack`s are supported.
-   *        - False otherwise
-   */
-  Html5.supportsNativeVideoTracks = function () {
-    return !!(Html5.TEST_VID && Html5.TEST_VID.videoTracks);
-  };
-
-  /**
-   * Check to see if native `AudioTrack`s are supported by this browser/device
-   *
-   * @return {boolean}
-   *        - True if native `AudioTrack`s are supported.
-   *        - False otherwise
-   */
-  Html5.supportsNativeAudioTracks = function () {
-    return !!(Html5.TEST_VID && Html5.TEST_VID.audioTracks);
-  };
-
-  /**
-   * An array of events available on the Html5 tech.
-   *
-   * @private
-   * @type {Array}
-   */
-  Html5.Events = ['loadstart', 'suspend', 'abort', 'error', 'emptied', 'stalled', 'loadedmetadata', 'loadeddata', 'canplay', 'canplaythrough', 'playing', 'waiting', 'seeking', 'seeked', 'ended', 'durationchange', 'timeupdate', 'progress', 'play', 'pause', 'ratechange', 'resize', 'volumechange'];
-
-  /**
-   * Boolean indicating whether the `Tech` supports volume control.
-   *
-   * @type {boolean}
-   * @default {@link Html5.canControlVolume}
-   */
-  /**
-   * Boolean indicating whether the `Tech` supports muting volume.
-   *
-   * @type {boolean}
-   * @default {@link Html5.canMuteVolume}
-   */
-
-  /**
-   * Boolean indicating whether the `Tech` supports changing the speed at which the media
-   * plays. Examples:
-   *   - Set player to play 2x (twice) as fast
-   *   - Set player to play 0.5x (half) as fast
-   *
-   * @type {boolean}
-   * @default {@link Html5.canControlPlaybackRate}
-   */
-
-  /**
-   * Boolean indicating whether the `Tech` supports the `sourceset` event.
-   *
-   * @type {boolean}
-   * @default
-   */
-  /**
-   * Boolean indicating whether the `HTML5` tech currently supports native `TextTrack`s.
-   *
-   * @type {boolean}
-   * @default {@link Html5.supportsNativeTextTracks}
-   */
-  /**
-   * Boolean indicating whether the `HTML5` tech currently supports native `VideoTrack`s.
-   *
-   * @type {boolean}
-   * @default {@link Html5.supportsNativeVideoTracks}
-   */
-  /**
-   * Boolean indicating whether the `HTML5` tech currently supports native `AudioTrack`s.
-   *
-   * @type {boolean}
-   * @default {@link Html5.supportsNativeAudioTracks}
-   */
-  [['featuresMuteControl', 'canMuteVolume'], ['featuresPlaybackRate', 'canControlPlaybackRate'], ['featuresSourceset', 'canOverrideAttributes'], ['featuresNativeTextTracks', 'supportsNativeTextTracks'], ['featuresNativeVideoTracks', 'supportsNativeVideoTracks'], ['featuresNativeAudioTracks', 'supportsNativeAudioTracks']].forEach(function ([key, fn]) {
-    defineLazyProperty(Html5.prototype, key, () => Html5[fn](), true);
-  });
-  Html5.prototype.featuresVolumeControl = Html5.canControlVolume();
-
-  /**
-   * Boolean indicating whether the `HTML5` tech currently supports the media element
-   * moving in the DOM. iOS breaks if you move the media element, so this is set this to
-   * false there. Everywhere else this should be true.
-   *
-   * @type {boolean}
-   * @default
-   */
-  Html5.prototype.movingMediaElementInDOM = !IS_IOS;
-
-  // TODO: Previous comment: No longer appears to be used. Can probably be removed.
-  //       Is this true?
-  /**
-   * Boolean indicating whether the `HTML5` tech currently supports automatic media resize
-   * when going into fullscreen.
-   *
-   * @type {boolean}
-   * @default
-   */
-  Html5.prototype.featuresFullscreenResize = true;
-
-  /**
-   * Boolean indicating whether the `HTML5` tech currently supports the progress event.
-   * If this is false, manual `progress` events will be triggered instead.
-   *
-   * @type {boolean}
-   * @default
-   */
-  Html5.prototype.featuresProgressEvents = true;
-
-  /**
-   * Boolean indicating whether the `HTML5` tech currently supports the timeupdate event.
-   * If this is false, manual `timeupdate` events will be triggered instead.
-   *
-   * @default
-   */
-  Html5.prototype.featuresTimeupdateEvents = true;
-
-  /**
-   * Whether the HTML5 el supports `requestVideoFrameCallback`
-   *
-   * @type {boolean}
-   */
-  Html5.prototype.featuresVideoFrameCallback = !!(Html5.TEST_VID && Html5.TEST_VID.requestVideoFrameCallback);
-  Html5.disposeMediaElement = function (el) {
-    if (!el) {
-      return;
-    }
-    if (el.parentNode) {
-      el.parentNode.removeChild(el);
-    }
-
-    // remove any child track or source nodes to prevent their loading
-    while (el.hasChildNodes()) {
-      el.removeChild(el.firstChild);
-    }
-
-    // remove any src reference. not setting `src=''` because that causes a warning
-    // in firefox
-    el.removeAttribute('src');
-
-    // force the media element to update its loading state by calling load()
-    // however IE on Windows 7N has a bug that throws an error so need a try/catch (#793)
-    if (typeof el.load === 'function') {
-      // wrapping in an iife so it's not deoptimized (#1060#discussion_r10324473)
-      (function () {
-        try {
-          el.load();
-        } catch (e) {
-          // not supported
-        }
-      })();
-    }
-  };
-  Html5.resetMediaElement = function (el) {
-    if (!el) {
-      return;
-    }
-    const sources = el.querySelectorAll('source');
-    let i = sources.length;
-    while (i--) {
-      el.removeChild(sources[i]);
-    }
-
-    // remove any src reference.
-    // not setting `src=''` because that throws an error
-    el.removeAttribute('src');
-    if (typeof el.load === 'function') {
-      // wrapping in an iife so it's not deoptimized (#1060#discussion_r10324473)
-      (function () {
-        try {
-          el.load();
-        } catch (e) {
-          // satisfy linter
-        }
-      })();
-    }
-  };
-
-  /* Native HTML5 element property wrapping ----------------------------------- */
-  // Wrap native boolean attributes with getters that check both property and attribute
-  // The list is as followed:
-  // muted, defaultMuted, autoplay, controls, loop, playsinline
-  [
-  /**
-   * Get the value of `muted` from the media element. `muted` indicates
-   * that the volume for the media should be set to silent. This does not actually change
-   * the `volume` attribute.
-   *
-   * @method Html5#muted
-   * @return {boolean}
-   *         - True if the value of `volume` should be ignored and the audio set to silent.
-   *         - False if the value of `volume` should be used.
-   *
-   * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-muted}
-   */
-  'muted',
-  /**
-   * Get the value of `defaultMuted` from the media element. `defaultMuted` indicates
-   * whether the media should start muted or not. Only changes the default state of the
-   * media. `muted` and `defaultMuted` can have different values. {@link Html5#muted} indicates the
-   * current state.
-   *
-   * @method Html5#defaultMuted
-   * @return {boolean}
-   *         - The value of `defaultMuted` from the media element.
-   *         - True indicates that the media should start muted.
-   *         - False indicates that the media should not start muted
-   *
-   * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-defaultmuted}
-   */
-  'defaultMuted',
-  /**
-   * Get the value of `autoplay` from the media element. `autoplay` indicates
-   * that the media should start to play as soon as the page is ready.
-   *
-   * @method Html5#autoplay
-   * @return {boolean}
-   *         - The value of `autoplay` from the media element.
-   *         - True indicates that the media should start as soon as the page loads.
-   *         - False indicates that the media should not start as soon as the page loads.
-   *
-   * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#attr-media-autoplay}
-   */
-  'autoplay',
-  /**
-   * Get the value of `controls` from the media element. `controls` indicates
-   * whether the native media controls should be shown or hidden.
-   *
-   * @method Html5#controls
-   * @return {boolean}
-   *         - The value of `controls` from the media element.
-   *         - True indicates that native controls should be showing.
-   *         - False indicates that native controls should be hidden.
-   *
-   * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#attr-media-controls}
-   */
-  'controls',
-  /**
-   * Get the value of `loop` from the media element. `loop` indicates
-   * that the media should return to the start of the media and continue playing once
-   * it reaches the end.
-   *
-   * @method Html5#loop
-   * @return {boolean}
-   *         - The value of `loop` from the media element.
-   *         - True indicates that playback should seek back to start once
-   *           the end of a media is reached.
-   *         - False indicates that playback should not loop back to the start when the
-   *           end of the media is reached.
-   *
-   * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#attr-media-loop}
-   */
-  'loop',
-  /**
-   * Get the value of `playsinline` from the media element. `playsinline` indicates
-   * to the browser that non-fullscreen playback is preferred when fullscreen
-   * playback is the native default, such as in iOS Safari.
-   *
-   * @method Html5#playsinline
-   * @return {boolean}
-   *         - The value of `playsinline` from the media element.
-   *         - True indicates that the media should play inline.
-   *         - False indicates that the media should not play inline.
-   *
-   * @see [Spec]{@link https://html.spec.whatwg.org/#attr-video-playsinline}
-   */
-  'playsinline'].forEach(function (prop) {
-    Html5.prototype[prop] = function () {
-      return this.el_[prop] || this.el_.hasAttribute(prop);
-    };
-  });
-
-  // Wrap native boolean attributes with setters that set both property and attribute
-  // The list is as followed:
-  // setMuted, setDefaultMuted, setAutoplay, setLoop, setPlaysinline
-  // setControls is special-cased above
-  [
-  /**
-   * Set the value of `muted` on the media element. `muted` indicates that the current
-   * audio level should be silent.
-   *
-   * @method Html5#setMuted
-   * @param {boolean} muted
-   *        - True if the audio should be set to silent
-   *        - False otherwise
-   *
-   * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-muted}
-   */
-  'muted',
-  /**
-   * Set the value of `defaultMuted` on the media element. `defaultMuted` indicates that the current
-   * audio level should be silent, but will only effect the muted level on initial playback..
-   *
-   * @method Html5.prototype.setDefaultMuted
-   * @param {boolean} defaultMuted
-   *        - True if the audio should be set to silent
-   *        - False otherwise
-   *
-   * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-defaultmuted}
-   */
-  'defaultMuted',
-  /**
-   * Set the value of `autoplay` on the media element. `autoplay` indicates
-   * that the media should start to play as soon as the page is ready.
-   *
-   * @method Html5#setAutoplay
-   * @param {boolean} autoplay
-   *         - True indicates that the media should start as soon as the page loads.
-   *         - False indicates that the media should not start as soon as the page loads.
-   *
-   * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#attr-media-autoplay}
-   */
-  'autoplay',
-  /**
-   * Set the value of `loop` on the media element. `loop` indicates
-   * that the media should return to the start of the media and continue playing once
-   * it reaches the end.
-   *
-   * @method Html5#setLoop
-   * @param {boolean} loop
-   *         - True indicates that playback should seek back to start once
-   *           the end of a media is reached.
-   *         - False indicates that playback should not loop back to the start when the
-   *           end of the media is reached.
-   *
-   * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#attr-media-loop}
-   */
-  'loop',
-  /**
-   * Set the value of `playsinline` from the media element. `playsinline` indicates
-   * to the browser that non-fullscreen playback is preferred when fullscreen
-   * playback is the native default, such as in iOS Safari.
-   *
-   * @method Html5#setPlaysinline
-   * @param {boolean} playsinline
-   *         - True indicates that the media should play inline.
-   *         - False indicates that the media should not play inline.
-   *
-   * @see [Spec]{@link https://html.spec.whatwg.org/#attr-video-playsinline}
-   */
-  'playsinline'].forEach(function (prop) {
-    Html5.prototype['set' + toTitleCase$1(prop)] = function (v) {
-      this.el_[prop] = v;
-      if (v) {
-        this.el_.setAttribute(prop, prop);
-      } else {
-        this.el_.removeAttribute(prop);
-      }
-    };
-  });
-
-  // Wrap native properties with a getter
-  // The list is as followed
-  // paused, currentTime, buffered, volume, poster, preload, error, seeking
-  // seekable, ended, playbackRate, defaultPlaybackRate, disablePictureInPicture
-  // played, networkState, readyState, videoWidth, videoHeight, crossOrigin
-  [
-  /**
-   * Get the value of `paused` from the media element. `paused` indicates whether the media element
-   * is currently paused or not.
-   *
-   * @method Html5#paused
-   * @return {boolean}
-   *         The value of `paused` from the media element.
-   *
-   * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-paused}
-   */
-  'paused',
-  /**
-   * Get the value of `currentTime` from the media element. `currentTime` indicates
-   * the current second that the media is at in playback.
-   *
-   * @method Html5#currentTime
-   * @return {number}
-   *         The value of `currentTime` from the media element.
-   *
-   * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-currenttime}
-   */
-  'currentTime',
-  /**
-   * Get the value of `buffered` from the media element. `buffered` is a `TimeRange`
-   * object that represents the parts of the media that are already downloaded and
-   * available for playback.
-   *
-   * @method Html5#buffered
-   * @return {TimeRange}
-   *         The value of `buffered` from the media element.
-   *
-   * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-buffered}
-   */
-  'buffered',
-  /**
-   * Get the value of `volume` from the media element. `volume` indicates
-   * the current playback volume of audio for a media. `volume` will be a value from 0
-   * (silent) to 1 (loudest and default).
-   *
-   * @method Html5#volume
-   * @return {number}
-   *         The value of `volume` from the media element. Value will be between 0-1.
-   *
-   * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-a-volume}
-   */
-  'volume',
-  /**
-   * Get the value of `poster` from the media element. `poster` indicates
-   * that the url of an image file that can/will be shown when no media data is available.
-   *
-   * @method Html5#poster
-   * @return {string}
-   *         The value of `poster` from the media element. Value will be a url to an
-   *         image.
-   *
-   * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#attr-video-poster}
-   */
-  'poster',
-  /**
-   * Get the value of `preload` from the media element. `preload` indicates
-   * what should download before the media is interacted with. It can have the following
-   * values:
-   * - none: nothing should be downloaded
-   * - metadata: poster and the first few frames of the media may be downloaded to get
-   *   media dimensions and other metadata
-   * - auto: allow the media and metadata for the media to be downloaded before
-   *    interaction
-   *
-   * @method Html5#preload
-   * @return {string}
-   *         The value of `preload` from the media element. Will be 'none', 'metadata',
-   *         or 'auto'.
-   *
-   * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#attr-media-preload}
-   */
-  'preload',
-  /**
-   * Get the value of the `error` from the media element. `error` indicates any
-   * MediaError that may have occurred during playback. If error returns null there is no
-   * current error.
-   *
-   * @method Html5#error
-   * @return {MediaError|null}
-   *         The value of `error` from the media element. Will be `MediaError` if there
-   *         is a current error and null otherwise.
-   *
-   * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-error}
-   */
-  'error',
-  /**
-   * Get the value of `seeking` from the media element. `seeking` indicates whether the
-   * media is currently seeking to a new position or not.
-   *
-   * @method Html5#seeking
-   * @return {boolean}
-   *         - The value of `seeking` from the media element.
-   *         - True indicates that the media is currently seeking to a new position.
-   *         - False indicates that the media is not seeking to a new position at this time.
-   *
-   * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-seeking}
-   */
-  'seeking',
-  /**
-   * Get the value of `seekable` from the media element. `seekable` returns a
-   * `TimeRange` object indicating ranges of time that can currently be `seeked` to.
-   *
-   * @method Html5#seekable
-   * @return {TimeRange}
-   *         The value of `seekable` from the media element. A `TimeRange` object
-   *         indicating the current ranges of time that can be seeked to.
-   *
-   * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-seekable}
-   */
-  'seekable',
-  /**
-   * Get the value of `ended` from the media element. `ended` indicates whether
-   * the media has reached the end or not.
-   *
-   * @method Html5#ended
-   * @return {boolean}
-   *         - The value of `ended` from the media element.
-   *         - True indicates that the media has ended.
-   *         - False indicates that the media has not ended.
-   *
-   * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-ended}
-   */
-  'ended',
-  /**
-   * Get the value of `playbackRate` from the media element. `playbackRate` indicates
-   * the rate at which the media is currently playing back. Examples:
-   *   - if playbackRate is set to 2, media will play twice as fast.
-   *   - if playbackRate is set to 0.5, media will play half as fast.
-   *
-   * @method Html5#playbackRate
-   * @return {number}
-   *         The value of `playbackRate` from the media element. A number indicating
-   *         the current playback speed of the media, where 1 is normal speed.
-   *
-   * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-playbackrate}
-   */
-  'playbackRate',
-  /**
-   * Get the value of `defaultPlaybackRate` from the media element. `defaultPlaybackRate` indicates
-   * the rate at which the media is currently playing back. This value will not indicate the current
-   * `playbackRate` after playback has started, use {@link Html5#playbackRate} for that.
-   *
-   * Examples:
-   *   - if defaultPlaybackRate is set to 2, media will play twice as fast.
-   *   - if defaultPlaybackRate is set to 0.5, media will play half as fast.
-   *
-   * @method Html5.prototype.defaultPlaybackRate
-   * @return {number}
-   *         The value of `defaultPlaybackRate` from the media element. A number indicating
-   *         the current playback speed of the media, where 1 is normal speed.
-   *
-   * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-playbackrate}
-   */
-  'defaultPlaybackRate',
-  /**
-   * Get the value of 'disablePictureInPicture' from the video element.
-   *
-   * @method Html5#disablePictureInPicture
-   * @return {boolean} value
-   *         - The value of `disablePictureInPicture` from the video element.
-   *         - True indicates that the video can't be played in Picture-In-Picture mode
-   *         - False indicates that the video can be played in Picture-In-Picture mode
-   *
-   * @see [Spec]{@link https://w3c.github.io/picture-in-picture/#disable-pip}
-   */
-  'disablePictureInPicture',
-  /**
-   * Get the value of `played` from the media element. `played` returns a `TimeRange`
-   * object representing points in the media timeline that have been played.
-   *
-   * @method Html5#played
-   * @return {TimeRange}
-   *         The value of `played` from the media element. A `TimeRange` object indicating
-   *         the ranges of time that have been played.
-   *
-   * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-played}
-   */
-  'played',
-  /**
-   * Get the value of `networkState` from the media element. `networkState` indicates
-   * the current network state. It returns an enumeration from the following list:
-   * - 0: NETWORK_EMPTY
-   * - 1: NETWORK_IDLE
-   * - 2: NETWORK_LOADING
-   * - 3: NETWORK_NO_SOURCE
-   *
-   * @method Html5#networkState
-   * @return {number}
-   *         The value of `networkState` from the media element. This will be a number
-   *         from the list in the description.
-   *
-   * @see [Spec] {@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-networkstate}
-   */
-  'networkState',
-  /**
-   * Get the value of `readyState` from the media element. `readyState` indicates
-   * the current state of the media element. It returns an enumeration from the
-   * following list:
-   * - 0: HAVE_NOTHING
-   * - 1: HAVE_METADATA
-   * - 2: HAVE_CURRENT_DATA
-   * - 3: HAVE_FUTURE_DATA
-   * - 4: HAVE_ENOUGH_DATA
-   *
-   * @method Html5#readyState
-   * @return {number}
-   *         The value of `readyState` from the media element. This will be a number
-   *         from the list in the description.
-   *
-   * @see [Spec] {@link https://www.w3.org/TR/html5/embedded-content-0.html#ready-states}
-   */
-  'readyState',
-  /**
-   * Get the value of `videoWidth` from the video element. `videoWidth` indicates
-   * the current width of the video in css pixels.
-   *
-   * @method Html5#videoWidth
-   * @return {number}
-   *         The value of `videoWidth` from the video element. This will be a number
-   *         in css pixels.
-   *
-   * @see [Spec] {@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-video-videowidth}
-   */
-  'videoWidth',
-  /**
-   * Get the value of `videoHeight` from the video element. `videoHeight` indicates
-   * the current height of the video in css pixels.
-   *
-   * @method Html5#videoHeight
-   * @return {number}
-   *         The value of `videoHeight` from the video element. This will be a number
-   *         in css pixels.
-   *
-   * @see [Spec] {@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-video-videowidth}
-   */
-  'videoHeight',
-  /**
-   * Get the value of `crossOrigin` from the media element. `crossOrigin` indicates
-   * to the browser that should sent the cookies along with the requests for the
-   * different assets/playlists
-   *
-   * @method Html5#crossOrigin
-   * @return {string}
-   *         - anonymous indicates that the media should not sent cookies.
-   *         - use-credentials indicates that the media should sent cookies along the requests.
-   *
-   * @see [Spec]{@link https://html.spec.whatwg.org/#attr-media-crossorigin}
-   */
-  'crossOrigin'].forEach(function (prop) {
-    Html5.prototype[prop] = function () {
-      return this.el_[prop];
-    };
-  });
-
-  // Wrap native properties with a setter in this format:
-  // set + toTitleCase(name)
-  // The list is as follows:
-  // setVolume, setSrc, setPoster, setPreload, setPlaybackRate, setDefaultPlaybackRate,
-  // setDisablePictureInPicture, setCrossOrigin
-  [
-  /**
-   * Set the value of `volume` on the media element. `volume` indicates the current
-   * audio level as a percentage in decimal form. This means that 1 is 100%, 0.5 is 50%, and
-   * so on.
-   *
-   * @method Html5#setVolume
-   * @param {number} percentAsDecimal
-   *        The volume percent as a decimal. Valid range is from 0-1.
-   *
-   * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-a-volume}
-   */
-  'volume',
-  /**
-   * Set the value of `src` on the media element. `src` indicates the current
-   * {@link Tech~SourceObject} for the media.
-   *
-   * @method Html5#setSrc
-   * @param {Tech~SourceObject} src
-   *        The source object to set as the current source.
-   *
-   * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-src}
-   */
-  'src',
-  /**
-   * Set the value of `poster` on the media element. `poster` is the url to
-   * an image file that can/will be shown when no media data is available.
-   *
-   * @method Html5#setPoster
-   * @param {string} poster
-   *        The url to an image that should be used as the `poster` for the media
-   *        element.
-   *
-   * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#attr-media-poster}
-   */
-  'poster',
-  /**
-   * Set the value of `preload` on the media element. `preload` indicates
-   * what should download before the media is interacted with. It can have the following
-   * values:
-   * - none: nothing should be downloaded
-   * - metadata: poster and the first few frames of the media may be downloaded to get
-   *   media dimensions and other metadata
-   * - auto: allow the media and metadata for the media to be downloaded before
-   *    interaction
-   *
-   * @method Html5#setPreload
-   * @param {string} preload
-   *         The value of `preload` to set on the media element. Must be 'none', 'metadata',
-   *         or 'auto'.
-   *
-   * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#attr-media-preload}
-   */
-  'preload',
-  /**
-   * Set the value of `playbackRate` on the media element. `playbackRate` indicates
-   * the rate at which the media should play back. Examples:
-   *   - if playbackRate is set to 2, media will play twice as fast.
-   *   - if playbackRate is set to 0.5, media will play half as fast.
-   *
-   * @method Html5#setPlaybackRate
-   * @return {number}
-   *         The value of `playbackRate` from the media element. A number indicating
-   *         the current playback speed of the media, where 1 is normal speed.
-   *
-   * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-playbackrate}
-   */
-  'playbackRate',
-  /**
-   * Set the value of `defaultPlaybackRate` on the media element. `defaultPlaybackRate` indicates
-   * the rate at which the media should play back upon initial startup. Changing this value
-   * after a video has started will do nothing. Instead you should used {@link Html5#setPlaybackRate}.
-   *
-   * Example Values:
-   *   - if playbackRate is set to 2, media will play twice as fast.
-   *   - if playbackRate is set to 0.5, media will play half as fast.
-   *
-   * @method Html5.prototype.setDefaultPlaybackRate
-   * @return {number}
-   *         The value of `defaultPlaybackRate` from the media element. A number indicating
-   *         the current playback speed of the media, where 1 is normal speed.
-   *
-   * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-defaultplaybackrate}
-   */
-  'defaultPlaybackRate',
-  /**
-   * Prevents the browser from suggesting a Picture-in-Picture context menu
-   * or to request Picture-in-Picture automatically in some cases.
-   *
-   * @method Html5#setDisablePictureInPicture
-   * @param {boolean} value
-   *         The true value will disable Picture-in-Picture mode.
-   *
-   * @see [Spec]{@link https://w3c.github.io/picture-in-picture/#disable-pip}
-   */
-  'disablePictureInPicture',
-  /**
-   * Set the value of `crossOrigin` from the media element. `crossOrigin` indicates
-   * to the browser that should sent the cookies along with the requests for the
-   * different assets/playlists
-   *
-   * @method Html5#setCrossOrigin
-   * @param {string} crossOrigin
-   *         - anonymous indicates that the media should not sent cookies.
-   *         - use-credentials indicates that the media should sent cookies along the requests.
-   *
-   * @see [Spec]{@link https://html.spec.whatwg.org/#attr-media-crossorigin}
-   */
-  'crossOrigin'].forEach(function (prop) {
-    Html5.prototype['set' + toTitleCase$1(prop)] = function (v) {
-      this.el_[prop] = v;
-    };
-  });
-
-  // wrap native functions with a function
-  // The list is as follows:
-  // pause, load, play
-  [
-  /**
-   * A wrapper around the media elements `pause` function. This will call the `HTML5`
-   * media elements `pause` function.
-   *
-   * @method Html5#pause
-   * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-pause}
-   */
-  'pause',
-  /**
-   * A wrapper around the media elements `load` function. This will call the `HTML5`s
-   * media element `load` function.
-   *
-   * @method Html5#load
-   * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-load}
-   */
-  'load',
-  /**
-   * A wrapper around the media elements `play` function. This will call the `HTML5`s
-   * media element `play` function.
-   *
-   * @method Html5#play
-   * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-play}
-   */
-  'play'].forEach(function (prop) {
-    Html5.prototype[prop] = function () {
-      return this.el_[prop]();
-    };
-  });
-  Tech.withSourceHandlers(Html5);
-
-  /**
-   * Native source handler for Html5, simply passes the source to the media element.
-   *
-   * @property {Tech~SourceObject} source
-   *        The source object
-   *
-   * @property {Html5} tech
-   *        The instance of the HTML5 tech.
-   */
-  Html5.nativeSourceHandler = {};
-
-  /**
-   * Check if the media element can play the given mime type.
-   *
-   * @param {string} type
-   *        The mimetype to check
-   *
-   * @return {string}
-   *         'probably', 'maybe', or '' (empty string)
-   */
-  Html5.nativeSourceHandler.canPlayType = function (type) {
-    // IE without MediaPlayer throws an error (#519)
-    try {
-      return Html5.TEST_VID.canPlayType(type);
-    } catch (e) {
-      return '';
-    }
-  };
-
-  /**
-   * Check if the media element can handle a source natively.
-   *
-   * @param {Tech~SourceObject} source
-   *         The source object
-   *
-   * @param {Object} [options]
-   *         Options to be passed to the tech.
-   *
-   * @return {string}
-   *         'probably', 'maybe', or '' (empty string).
-   */
-  Html5.nativeSourceHandler.canHandleSource = function (source, options) {
-    // If a type was provided we should rely on that
-    if (source.type) {
-      return Html5.nativeSourceHandler.canPlayType(source.type);
-
-      // If no type, fall back to checking 'video/[EXTENSION]'
-    } else if (source.src) {
-      const ext = getFileExtension(source.src);
-      return Html5.nativeSourceHandler.canPlayType(`video/${ext}`);
-    }
-    return '';
-  };
-
-  /**
-   * Pass the source to the native media element.
-   *
-   * @param {Tech~SourceObject} source
-   *        The source object
-   *
-   * @param {Html5} tech
-   *        The instance of the Html5 tech
-   *
-   * @param {Object} [options]
-   *        The options to pass to the source
-   */
-  Html5.nativeSourceHandler.handleSource = function (source, tech, options) {
-    tech.setSrc(source.src);
-  };
-
-  /**
-   * A noop for the native dispose function, as cleanup is not needed.
-   */
-  Html5.nativeSourceHandler.dispose = function () {};
-
-  // Register the native source handler
-  Html5.registerSourceHandler(Html5.nativeSourceHandler);
-  Tech.registerTech('Html5', Html5);
-
-  /**
-   * @file player.js
-   */
-
-  // The following tech events are simply re-triggered
-  // on the player when they happen
-  const TECH_EVENTS_RETRIGGER = [
-  /**
-   * Fired while the user agent is downloading media data.
-   *
-   * @event Player#progress
-   * @type {Event}
-   */
-  /**
-   * Retrigger the `progress` event that was triggered by the {@link Tech}.
-   *
-   * @private
-   * @method Player#handleTechProgress_
-   * @fires Player#progress
-   * @listens Tech#progress
-   */
-  'progress',
-  /**
-   * Fires when the loading of an audio/video is aborted.
-   *
-   * @event Player#abort
-   * @type {Event}
-   */
-  /**
-   * Retrigger the `abort` event that was triggered by the {@link Tech}.
-   *
-   * @private
-   * @method Player#handleTechAbort_
-   * @fires Player#abort
-   * @listens Tech#abort
-   */
-  'abort',
-  /**
-   * Fires when the browser is intentionally not getting media data.
-   *
-   * @event Player#suspend
-   * @type {Event}
-   */
-  /**
-   * Retrigger the `suspend` event that was triggered by the {@link Tech}.
-   *
-   * @private
-   * @method Player#handleTechSuspend_
-   * @fires Player#suspend
-   * @listens Tech#suspend
-   */
-  'suspend',
-  /**
-   * Fires when the current playlist is empty.
-   *
-   * @event Player#emptied
-   * @type {Event}
-   */
-  /**
-   * Retrigger the `emptied` event that was triggered by the {@link Tech}.
-   *
-   * @private
-   * @method Player#handleTechEmptied_
-   * @fires Player#emptied
-   * @listens Tech#emptied
-   */
-  'emptied',
-  /**
-   * Fires when the browser is trying to get media data, but data is not available.
-   *
-   * @event Player#stalled
-   * @type {Event}
-   */
-  /**
-   * Retrigger the `stalled` event that was triggered by the {@link Tech}.
-   *
-   * @private
-   * @method Player#handleTechStalled_
-   * @fires Player#stalled
-   * @listens Tech#stalled
-   */
-  'stalled',
-  /**
-   * Fires when the browser has loaded meta data for the audio/video.
-   *
-   * @event Player#loadedmetadata
-   * @type {Event}
-   */
-  /**
-   * Retrigger the `loadedmetadata` event that was triggered by the {@link Tech}.
-   *
-   * @private
-   * @method Player#handleTechLoadedmetadata_
-   * @fires Player#loadedmetadata
-   * @listens Tech#loadedmetadata
-   */
-  'loadedmetadata',
-  /**
-   * Fires when the browser has loaded the current frame of the audio/video.
-   *
-   * @event Player#loadeddata
-   * @type {event}
-   */
-  /**
-   * Retrigger the `loadeddata` event that was triggered by the {@link Tech}.
-   *
-   * @private
-   * @method Player#handleTechLoaddeddata_
-   * @fires Player#loadeddata
-   * @listens Tech#loadeddata
-   */
-  'loadeddata',
-  /**
-   * Fires when the current playback position has changed.
-   *
-   * @event Player#timeupdate
-   * @type {event}
-   */
-  /**
-   * Retrigger the `timeupdate` event that was triggered by the {@link Tech}.
-   *
-   * @private
-   * @method Player#handleTechTimeUpdate_
-   * @fires Player#timeupdate
-   * @listens Tech#timeupdate
-   */
-  'timeupdate',
-  /**
-   * Fires when the video's intrinsic dimensions change
-   *
-   * @event Player#resize
-   * @type {event}
-   */
-  /**
-   * Retrigger the `resize` event that was triggered by the {@link Tech}.
-   *
-   * @private
-   * @method Player#handleTechResize_
-   * @fires Player#resize
-   * @listens Tech#resize
-   */
-  'resize',
-  /**
-   * Fires when the volume has been changed
-   *
-   * @event Player#volumechange
-   * @type {event}
-   */
-  /**
-   * Retrigger the `volumechange` event that was triggered by the {@link Tech}.
-   *
-   * @private
-   * @method Player#handleTechVolumechange_
-   * @fires Player#volumechange
-   * @listens Tech#volumechange
-   */
-  'volumechange',
-  /**
-   * Fires when the text track has been changed
-   *
-   * @event Player#texttrackchange
-   * @type {event}
-   */
-  /**
-   * Retrigger the `texttrackchange` event that was triggered by the {@link Tech}.
-   *
-   * @private
-   * @method Player#handleTechTexttrackchange_
-   * @fires Player#texttrackchange
-   * @listens Tech#texttrackchange
-   */
-  'texttrackchange'];
-
-  // events to queue when playback rate is zero
-  // this is a hash for the sole purpose of mapping non-camel-cased event names
-  // to camel-cased function names
-  const TECH_EVENTS_QUEUE = {
-    canplay: 'CanPlay',
-    canplaythrough: 'CanPlayThrough',
-    playing: 'Playing',
-    seeked: 'Seeked'
-  };
-  const BREAKPOINT_ORDER = ['tiny', 'xsmall', 'small', 'medium', 'large', 'xlarge', 'huge'];
-  const BREAKPOINT_CLASSES = {};
-
-  // grep: vjs-layout-tiny
-  // grep: vjs-layout-x-small
-  // grep: vjs-layout-small
-  // grep: vjs-layout-medium
-  // grep: vjs-layout-large
-  // grep: vjs-layout-x-large
-  // grep: vjs-layout-huge
-  BREAKPOINT_ORDER.forEach(k => {
-    const v = k.charAt(0) === 'x' ? `x-${k.substring(1)}` : k;
-    BREAKPOINT_CLASSES[k] = `vjs-layout-${v}`;
-  });
-  const DEFAULT_BREAKPOINTS = {
-    tiny: 210,
-    xsmall: 320,
-    small: 425,
-    medium: 768,
-    large: 1440,
-    xlarge: 2560,
-    huge: Infinity
-  };
-
-  /**
-   * An instance of the `Player` class is created when any of the Video.js setup methods
-   * are used to initialize a video.
-   *
-   * After an instance has been created it can be accessed globally in three ways:
-   * 1. By calling `videojs.getPlayer('example_video_1');`
-   * 2. By calling `videojs('example_video_1');` (not recommended)
-   * 2. By using it directly via `videojs.players.example_video_1;`
-   *
-   * @extends Component
-   * @global
-   */
-  class Player extends Component$1 {
-    /**
-     * Create an instance of this class.
-     *
-     * @param {Element} tag
-     *        The original video DOM element used for configuring options.
-     *
-     * @param {Object} [options]
-     *        Object of option names and values.
-     *
-     * @param {Function} [ready]
-     *        Ready callback function.
-     */
-    constructor(tag, options, ready) {
-      // Make sure tag ID exists
-      // also here.. probably better
-      tag.id = tag.id || options.id || `vjs_video_${newGUID()}`;
-
-      // Set Options
-      // The options argument overrides options set in the video tag
-      // which overrides globally set options.
-      // This latter part coincides with the load order
-      // (tag must exist before Player)
-      options = Object.assign(Player.getTagSettings(tag), options);
-
-      // Delay the initialization of children because we need to set up
-      // player properties first, and can't use `this` before `super()`
-      options.initChildren = false;
-
-      // Same with creating the element
-      options.createEl = false;
-
-      // don't auto mixin the evented mixin
-      options.evented = false;
-
-      // we don't want the player to report touch activity on itself
-      // see enableTouchActivity in Component
-      options.reportTouchActivity = false;
-
-      // If language is not set, get the closest lang attribute
-      if (!options.language) {
-        const closest = tag.closest('[lang]');
-        if (closest) {
-          options.language = closest.getAttribute('lang');
-        }
-      }
-
-      // Run base component initializing with new options
-      super(null, options, ready);
-
-      // Create bound methods for document listeners.
-      this.boundDocumentFullscreenChange_ = e => this.documentFullscreenChange_(e);
-      this.boundFullWindowOnEscKey_ = e => this.fullWindowOnEscKey(e);
-      this.boundUpdateStyleEl_ = e => this.updateStyleEl_(e);
-      this.boundApplyInitTime_ = e => this.applyInitTime_(e);
-      this.boundUpdateCurrentBreakpoint_ = e => this.updateCurrentBreakpoint_(e);
-      this.boundHandleTechClick_ = e => this.handleTechClick_(e);
-      this.boundHandleTechDoubleClick_ = e => this.handleTechDoubleClick_(e);
-      this.boundHandleTechTouchStart_ = e => this.handleTechTouchStart_(e);
-      this.boundHandleTechTouchMove_ = e => this.handleTechTouchMove_(e);
-      this.boundHandleTechTouchEnd_ = e => this.handleTechTouchEnd_(e);
-      this.boundHandleTechTap_ = e => this.handleTechTap_(e);
-
-      // default isFullscreen_ to false
-      this.isFullscreen_ = false;
-
-      // create logger
-      this.log = createLogger(this.id_);
-
-      // Hold our own reference to fullscreen api so it can be mocked in tests
-      this.fsApi_ = FullscreenApi;
-
-      // Tracks when a tech changes the poster
-      this.isPosterFromTech_ = false;
-
-      // Holds callback info that gets queued when playback rate is zero
-      // and a seek is happening
-      this.queuedCallbacks_ = [];
-
-      // Turn off API access because we're loading a new tech that might load asynchronously
-      this.isReady_ = false;
-
-      // Init state hasStarted_
-      this.hasStarted_ = false;
-
-      // Init state userActive_
-      this.userActive_ = false;
-
-      // Init debugEnabled_
-      this.debugEnabled_ = false;
-
-      // Init state audioOnlyMode_
-      this.audioOnlyMode_ = false;
-
-      // Init state audioPosterMode_
-      this.audioPosterMode_ = false;
-
-      // Init state audioOnlyCache_
-      this.audioOnlyCache_ = {
-        playerHeight: null,
-        hiddenChildren: []
-      };
-
-      // if the global option object was accidentally blown away by
-      // someone, bail early with an informative error
-      if (!this.options_ || !this.options_.techOrder || !this.options_.techOrder.length) {
-        throw new Error('No techOrder specified. Did you overwrite ' + 'videojs.options instead of just changing the ' + 'properties you want to override?');
-      }
-
-      // Store the original tag used to set options
-      this.tag = tag;
-
-      // Store the tag attributes used to restore html5 element
-      this.tagAttributes = tag && getAttributes(tag);
-
-      // Update current language
-      this.language(this.options_.language);
-
-      // Update Supported Languages
-      if (options.languages) {
-        // Normalise player option languages to lowercase
-        const languagesToLower = {};
-        Object.getOwnPropertyNames(options.languages).forEach(function (name) {
-          languagesToLower[name.toLowerCase()] = options.languages[name];
-        });
-        this.languages_ = languagesToLower;
-      } else {
-        this.languages_ = Player.prototype.options_.languages;
-      }
-      this.resetCache_();
-
-      // Set poster
-      /** @type string */
-      this.poster_ = options.poster || '';
-
-      // Set controls
-      /** @type {boolean} */
-      this.controls_ = !!options.controls;
-
-      // Original tag settings stored in options
-      // now remove immediately so native controls don't flash.
-      // May be turned back on by HTML5 tech if nativeControlsForTouch is true
-      tag.controls = false;
-      tag.removeAttribute('controls');
-      this.changingSrc_ = false;
-      this.playCallbacks_ = [];
-      this.playTerminatedQueue_ = [];
-
-      // the attribute overrides the option
-      if (tag.hasAttribute('autoplay')) {
-        this.autoplay(true);
-      } else {
-        // otherwise use the setter to validate and
-        // set the correct value.
-        this.autoplay(this.options_.autoplay);
-      }
-
-      // check plugins
-      if (options.plugins) {
-        Object.keys(options.plugins).forEach(name => {
-          if (typeof this[name] !== 'function') {
-            throw new Error(`plugin "${name}" does not exist`);
-          }
-        });
-      }
-
-      /*
-       * Store the internal state of scrubbing
-       *
-       * @private
-       * @return {Boolean} True if the user is scrubbing
-       */
-      this.scrubbing_ = false;
-      this.el_ = this.createEl();
-
-      // Make this an evented object and use `el_` as its event bus.
-      evented(this, {
-        eventBusKey: 'el_'
-      });
-
-      // listen to document and player fullscreenchange handlers so we receive those events
-      // before a user can receive them so we can update isFullscreen appropriately.
-      // make sure that we listen to fullscreenchange events before everything else to make sure that
-      // our isFullscreen method is updated properly for internal components as well as external.
-      if (this.fsApi_.requestFullscreen) {
-        on(document, this.fsApi_.fullscreenchange, this.boundDocumentFullscreenChange_);
-        this.on(this.fsApi_.fullscreenchange, this.boundDocumentFullscreenChange_);
-      }
-      if (this.fluid_) {
-        this.on(['playerreset', 'resize'], this.boundUpdateStyleEl_);
-      }
-      // We also want to pass the original player options to each component and plugin
-      // as well so they don't need to reach back into the player for options later.
-      // We also need to do another copy of this.options_ so we don't end up with
-      // an infinite loop.
-      const playerOptionsCopy = merge$2(this.options_);
-
-      // Load plugins
-      if (options.plugins) {
-        Object.keys(options.plugins).forEach(name => {
-          this[name](options.plugins[name]);
-        });
-      }
-
-      // Enable debug mode to fire debugon event for all plugins.
-      if (options.debug) {
-        this.debug(true);
-      }
-      this.options_.playerOptions = playerOptionsCopy;
-      this.middleware_ = [];
-      this.playbackRates(options.playbackRates);
-      if (options.experimentalSvgIcons) {
-        // Add SVG Sprite to the DOM
-        const parser = new window.DOMParser();
-        const parsedSVG = parser.parseFromString(icons, 'image/svg+xml');
-        const errorNode = parsedSVG.querySelector('parsererror');
-        if (errorNode) {
-          log$1.warn('Failed to load SVG Icons. Falling back to Font Icons.');
-          this.options_.experimentalSvgIcons = null;
-        } else {
-          const sprite = parsedSVG.documentElement;
-          sprite.style.display = 'none';
-          this.el_.appendChild(sprite);
-          this.addClass('vjs-svg-icons-enabled');
-        }
-      }
-      this.initChildren();
-
-      // Set isAudio based on whether or not an audio tag was used
-      this.isAudio(tag.nodeName.toLowerCase() === 'audio');
-
-      // Update controls className. Can't do this when the controls are initially
-      // set because the element doesn't exist yet.
-      if (this.controls()) {
-        this.addClass('vjs-controls-enabled');
-      } else {
-        this.addClass('vjs-controls-disabled');
-      }
-
-      // Set ARIA label and region role depending on player type
-      this.el_.setAttribute('role', 'region');
-      if (this.isAudio()) {
-        this.el_.setAttribute('aria-label', this.localize('Audio Player'));
-      } else {
-        this.el_.setAttribute('aria-label', this.localize('Video Player'));
-      }
-      if (this.isAudio()) {
-        this.addClass('vjs-audio');
-      }
-
-      // TODO: Make this smarter. Toggle user state between touching/mousing
-      // using events, since devices can have both touch and mouse events.
-      // TODO: Make this check be performed again when the window switches between monitors
-      // (See https://github.com/videojs/video.js/issues/5683)
-      if (TOUCH_ENABLED) {
-        this.addClass('vjs-touch-enabled');
-      }
-
-      // iOS Safari has broken hover handling
-      if (!IS_IOS) {
-        this.addClass('vjs-workinghover');
-      }
-
-      // Make player easily findable by ID
-      Player.players[this.id_] = this;
-
-      // Add a major version class to aid css in plugins
-      const majorVersion = version$5.split('.')[0];
-      this.addClass(`vjs-v${majorVersion}`);
-
-      // When the player is first initialized, trigger activity so components
-      // like the control bar show themselves if needed
-      this.userActive(true);
-      this.reportUserActivity();
-      this.one('play', e => this.listenForUserActivity_(e));
-      this.on('keydown', e => this.handleKeyDown(e));
-      this.on('languagechange', e => this.handleLanguagechange(e));
-      this.breakpoints(this.options_.breakpoints);
-      this.responsive(this.options_.responsive);
-
-      // Calling both the audio mode methods after the player is fully
-      // setup to be able to listen to the events triggered by them
-      this.on('ready', () => {
-        // Calling the audioPosterMode method first so that
-        // the audioOnlyMode can take precedence when both options are set to true
-        this.audioPosterMode(this.options_.audioPosterMode);
-        this.audioOnlyMode(this.options_.audioOnlyMode);
-      });
-    }
-
-    /**
-     * Destroys the video player and does any necessary cleanup.
-     *
-     * This is especially helpful if you are dynamically adding and removing videos
-     * to/from the DOM.
-     *
-     * @fires Player#dispose
-     */
-    dispose() {
-      /**
-       * Called when the player is being disposed of.
-       *
-       * @event Player#dispose
-       * @type {Event}
-       */
-      this.trigger('dispose');
-      // prevent dispose from being called twice
-      this.off('dispose');
-
-      // Make sure all player-specific document listeners are unbound. This is
-      off(document, this.fsApi_.fullscreenchange, this.boundDocumentFullscreenChange_);
-      off(document, 'keydown', this.boundFullWindowOnEscKey_);
-      if (this.styleEl_ && this.styleEl_.parentNode) {
-        this.styleEl_.parentNode.removeChild(this.styleEl_);
-        this.styleEl_ = null;
-      }
-
-      // Kill reference to this player
-      Player.players[this.id_] = null;
-      if (this.tag && this.tag.player) {
-        this.tag.player = null;
-      }
-      if (this.el_ && this.el_.player) {
-        this.el_.player = null;
-      }
-      if (this.tech_) {
-        this.tech_.dispose();
-        this.isPosterFromTech_ = false;
-        this.poster_ = '';
-      }
-      if (this.playerElIngest_) {
-        this.playerElIngest_ = null;
-      }
-      if (this.tag) {
-        this.tag = null;
-      }
-      clearCacheForPlayer(this);
-
-      // remove all event handlers for track lists
-      // all tracks and track listeners are removed on
-      // tech dispose
-      ALL.names.forEach(name => {
-        const props = ALL[name];
-        const list = this[props.getterName]();
-
-        // if it is not a native list
-        // we have to manually remove event listeners
-        if (list && list.off) {
-          list.off();
-        }
-      });
-
-      // the actual .el_ is removed here, or replaced if
-      super.dispose({
-        restoreEl: this.options_.restoreEl
-      });
-    }
-
-    /**
-     * Create the `Player`'s DOM element.
-     *
-     * @return {Element}
-     *         The DOM element that gets created.
-     */
-    createEl() {
-      let tag = this.tag;
-      let el;
-      let playerElIngest = this.playerElIngest_ = tag.parentNode && tag.parentNode.hasAttribute && tag.parentNode.hasAttribute('data-vjs-player');
-      const divEmbed = this.tag.tagName.toLowerCase() === 'video-js';
-      if (playerElIngest) {
-        el = this.el_ = tag.parentNode;
-      } else if (!divEmbed) {
-        el = this.el_ = super.createEl('div');
-      }
-
-      // Copy over all the attributes from the tag, including ID and class
-      // ID will now reference player box, not the video tag
-      const attrs = getAttributes(tag);
-      if (divEmbed) {
-        el = this.el_ = tag;
-        tag = this.tag = document.createElement('video');
-        while (el.children.length) {
-          tag.appendChild(el.firstChild);
-        }
-        if (!hasClass(el, 'video-js')) {
-          addClass(el, 'video-js');
-        }
-        el.appendChild(tag);
-        playerElIngest = this.playerElIngest_ = el;
-        // move properties over from our custom `video-js` element
-        // to our new `video` element. This will move things like
-        // `src` or `controls` that were set via js before the player
-        // was initialized.
-        Object.keys(el).forEach(k => {
-          try {
-            tag[k] = el[k];
-          } catch (e) {
-            // we got a a property like outerHTML which we can't actually copy, ignore it
-          }
-        });
-      }
-
-      // set tabindex to -1 to remove the video element from the focus order
-      tag.setAttribute('tabindex', '-1');
-      attrs.tabindex = '-1';
-
-      // Workaround for #4583 on Chrome (on Windows) with JAWS.
-      // See https://github.com/FreedomScientific/VFO-standards-support/issues/78
-      // Note that we can't detect if JAWS is being used, but this ARIA attribute
-      // doesn't change behavior of Chrome if JAWS is not being used
-      if (IS_CHROME && IS_WINDOWS) {
-        tag.setAttribute('role', 'application');
-        attrs.role = 'application';
-      }
-
-      // Remove width/height attrs from tag so CSS can make it 100% width/height
-      tag.removeAttribute('width');
-      tag.removeAttribute('height');
-      if ('width' in attrs) {
-        delete attrs.width;
-      }
-      if ('height' in attrs) {
-        delete attrs.height;
-      }
-      Object.getOwnPropertyNames(attrs).forEach(function (attr) {
-        // don't copy over the class attribute to the player element when we're in a div embed
-        // the class is already set up properly in the divEmbed case
-        // and we want to make sure that the `video-js` class doesn't get lost
-        if (!(divEmbed && attr === 'class')) {
-          el.setAttribute(attr, attrs[attr]);
-        }
-        if (divEmbed) {
-          tag.setAttribute(attr, attrs[attr]);
-        }
-      });
-
-      // Update tag id/class for use as HTML5 playback tech
-      // Might think we should do this after embedding in container so .vjs-tech class
-      // doesn't flash 100% width/height, but class only applies with .video-js parent
-      tag.playerId = tag.id;
-      tag.id += '_html5_api';
-      tag.className = 'vjs-tech';
-
-      // Make player findable on elements
-      tag.player = el.player = this;
-      // Default state of video is paused
-      this.addClass('vjs-paused');
-      const deviceClassNames = ['IS_SMART_TV', 'IS_TIZEN', 'IS_WEBOS', 'IS_ANDROID', 'IS_IPAD', 'IS_IPHONE'].filter(key => browser[key]).map(key => {
-        return 'vjs-device-' + key.substring(3).toLowerCase().replace(/\_/g, '-');
-      });
-      this.addClass(...deviceClassNames);
-
-      // Add a style element in the player that we'll use to set the width/height
-      // of the player in a way that's still overridable by CSS, just like the
-      // video element
-      if (window.VIDEOJS_NO_DYNAMIC_STYLE !== true) {
-        this.styleEl_ = createStyleElement('vjs-styles-dimensions');
-        const defaultsStyleEl = $('.vjs-styles-defaults');
-        const head = $('head');
-        head.insertBefore(this.styleEl_, defaultsStyleEl ? defaultsStyleEl.nextSibling : head.firstChild);
-      }
-      this.fill_ = false;
-      this.fluid_ = false;
-
-      // Pass in the width/height/aspectRatio options which will update the style el
-      this.width(this.options_.width);
-      this.height(this.options_.height);
-      this.fill(this.options_.fill);
-      this.fluid(this.options_.fluid);
-      this.aspectRatio(this.options_.aspectRatio);
-      // support both crossOrigin and crossorigin to reduce confusion and issues around the name
-      this.crossOrigin(this.options_.crossOrigin || this.options_.crossorigin);
-
-      // Hide any links within the video/audio tag,
-      // because IE doesn't hide them completely from screen readers.
-      const links = tag.getElementsByTagName('a');
-      for (let i = 0; i < links.length; i++) {
-        const linkEl = links.item(i);
-        addClass(linkEl, 'vjs-hidden');
-        linkEl.setAttribute('hidden', 'hidden');
-      }
-
-      // insertElFirst seems to cause the networkState to flicker from 3 to 2, so
-      // keep track of the original for later so we can know if the source originally failed
-      tag.initNetworkState_ = tag.networkState;
-
-      // Wrap video tag in div (el/box) container
-      if (tag.parentNode && !playerElIngest) {
-        tag.parentNode.insertBefore(el, tag);
-      }
-
-      // insert the tag as the first child of the player element
-      // then manually add it to the children array so that this.addChild
-      // will work properly for other components
-      //
-      // Breaks iPhone, fixed in HTML5 setup.
-      prependTo(tag, el);
-      this.children_.unshift(tag);
-
-      // Set lang attr on player to ensure CSS :lang() in consistent with player
-      // if it's been set to something different to the doc
-      this.el_.setAttribute('lang', this.language_);
-      this.el_.setAttribute('translate', 'no');
-      this.el_ = el;
-      return el;
-    }
-
-    /**
-     * Get or set the `Player`'s crossOrigin option. For the HTML5 player, this
-     * sets the `crossOrigin` property on the `<video>` tag to control the CORS
-     * behavior.
-     *
-     * @see [Video Element Attributes]{@link https://developer.mozilla.org/en-US/docs/Web/HTML/Element/video#attr-crossorigin}
-     *
-     * @param {string|null} [value]
-     *        The value to set the `Player`'s crossOrigin to. If an argument is
-     *        given, must be one of `'anonymous'` or `'use-credentials'`, or 'null'.
-     *
-     * @return {string|null|undefined}
-     *         - The current crossOrigin value of the `Player` when getting.
-     *         - undefined when setting
-     */
-    crossOrigin(value) {
-      // `null` can be set to unset a value
-      if (typeof value === 'undefined') {
-        return this.techGet_('crossOrigin');
-      }
-      if (value !== null && value !== 'anonymous' && value !== 'use-credentials') {
-        log$1.warn(`crossOrigin must be null,  "anonymous" or "use-credentials", given "${value}"`);
-        return;
-      }
-      this.techCall_('setCrossOrigin', value);
-      if (this.posterImage) {
-        this.posterImage.crossOrigin(value);
-      }
-      return;
-    }
-
-    /**
-     * A getter/setter for the `Player`'s width. Returns the player's configured value.
-     * To get the current width use `currentWidth()`.
-     *
-     * @param {number|string} [value]
-     *        CSS value to set the `Player`'s width to.
-     *
-     * @return {number|undefined}
-     *         - The current width of the `Player` when getting.
-     *         - Nothing when setting
-     */
-    width(value) {
-      return this.dimension('width', value);
-    }
-
-    /**
-     * A getter/setter for the `Player`'s height. Returns the player's configured value.
-     * To get the current height use `currentheight()`.
-     *
-     * @param {number|string} [value]
-     *        CSS value to set the `Player`'s height to.
-     *
-     * @return {number|undefined}
-     *         - The current height of the `Player` when getting.
-     *         - Nothing when setting
-     */
-    height(value) {
-      return this.dimension('height', value);
-    }
-
-    /**
-     * A getter/setter for the `Player`'s width & height.
-     *
-     * @param {string} dimension
-     *        This string can be:
-     *        - 'width'
-     *        - 'height'
-     *
-     * @param {number|string} [value]
-     *        Value for dimension specified in the first argument.
-     *
-     * @return {number}
-     *         The dimension arguments value when getting (width/height).
-     */
-    dimension(dimension, value) {
-      const privDimension = dimension + '_';
-      if (value === undefined) {
-        return this[privDimension] || 0;
-      }
-      if (value === '' || value === 'auto') {
-        // If an empty string is given, reset the dimension to be automatic
-        this[privDimension] = undefined;
-        this.updateStyleEl_();
-        return;
-      }
-      const parsedVal = parseFloat(value);
-      if (isNaN(parsedVal)) {
-        log$1.error(`Improper value "${value}" supplied for for ${dimension}`);
-        return;
-      }
-      this[privDimension] = parsedVal;
-      this.updateStyleEl_();
-    }
-
-    /**
-     * A getter/setter/toggler for the vjs-fluid `className` on the `Player`.
-     *
-     * Turning this on will turn off fill mode.
-     *
-     * @param {boolean} [bool]
-     *        - A value of true adds the class.
-     *        - A value of false removes the class.
-     *        - No value will be a getter.
-     *
-     * @return {boolean|undefined}
-     *         - The value of fluid when getting.
-     *         - `undefined` when setting.
-     */
-    fluid(bool) {
-      if (bool === undefined) {
-        return !!this.fluid_;
-      }
-      this.fluid_ = !!bool;
-      if (isEvented(this)) {
-        this.off(['playerreset', 'resize'], this.boundUpdateStyleEl_);
-      }
-      if (bool) {
-        this.addClass('vjs-fluid');
-        this.fill(false);
-        addEventedCallback(this, () => {
-          this.on(['playerreset', 'resize'], this.boundUpdateStyleEl_);
-        });
-      } else {
-        this.removeClass('vjs-fluid');
-      }
-      this.updateStyleEl_();
-    }
-
-    /**
-     * A getter/setter/toggler for the vjs-fill `className` on the `Player`.
-     *
-     * Turning this on will turn off fluid mode.
-     *
-     * @param {boolean} [bool]
-     *        - A value of true adds the class.
-     *        - A value of false removes the class.
-     *        - No value will be a getter.
-     *
-     * @return {boolean|undefined}
-     *         - The value of fluid when getting.
-     *         - `undefined` when setting.
-     */
-    fill(bool) {
-      if (bool === undefined) {
-        return !!this.fill_;
-      }
-      this.fill_ = !!bool;
-      if (bool) {
-        this.addClass('vjs-fill');
-        this.fluid(false);
-      } else {
-        this.removeClass('vjs-fill');
-      }
-    }
-
-    /**
-     * Get/Set the aspect ratio
-     *
-     * @param {string} [ratio]
-     *        Aspect ratio for player
-     *
-     * @return {string|undefined}
-     *         returns the current aspect ratio when getting
-     */
-
-    /**
-     * A getter/setter for the `Player`'s aspect ratio.
-     *
-     * @param {string} [ratio]
-     *        The value to set the `Player`'s aspect ratio to.
-     *
-     * @return {string|undefined}
-     *         - The current aspect ratio of the `Player` when getting.
-     *         - undefined when setting
-     */
-    aspectRatio(ratio) {
-      if (ratio === undefined) {
-        return this.aspectRatio_;
-      }
-
-      // Check for width:height format
-      if (!/^\d+\:\d+$/.test(ratio)) {
-        throw new Error('Improper value supplied for aspect ratio. The format should be width:height, for example 16:9.');
-      }
-      this.aspectRatio_ = ratio;
-
-      // We're assuming if you set an aspect ratio you want fluid mode,
-      // because in fixed mode you could calculate width and height yourself.
-      this.fluid(true);
-      this.updateStyleEl_();
-    }
-
-    /**
-     * Update styles of the `Player` element (height, width and aspect ratio).
-     *
-     * @private
-     * @listens Tech#loadedmetadata
-     */
-    updateStyleEl_() {
-      if (window.VIDEOJS_NO_DYNAMIC_STYLE === true) {
-        const width = typeof this.width_ === 'number' ? this.width_ : this.options_.width;
-        const height = typeof this.height_ === 'number' ? this.height_ : this.options_.height;
-        const techEl = this.tech_ && this.tech_.el();
-        if (techEl) {
-          if (width >= 0) {
-            techEl.width = width;
-          }
-          if (height >= 0) {
-            techEl.height = height;
-          }
-        }
-        return;
-      }
-      let width;
-      let height;
-      let aspectRatio;
-      let idClass;
-
-      // The aspect ratio is either used directly or to calculate width and height.
-      if (this.aspectRatio_ !== undefined && this.aspectRatio_ !== 'auto') {
-        // Use any aspectRatio that's been specifically set
-        aspectRatio = this.aspectRatio_;
-      } else if (this.videoWidth() > 0) {
-        // Otherwise try to get the aspect ratio from the video metadata
-        aspectRatio = this.videoWidth() + ':' + this.videoHeight();
-      } else {
-        // Or use a default. The video element's is 2:1, but 16:9 is more common.
-        aspectRatio = '16:9';
-      }
-
-      // Get the ratio as a decimal we can use to calculate dimensions
-      const ratioParts = aspectRatio.split(':');
-      const ratioMultiplier = ratioParts[1] / ratioParts[0];
-      if (this.width_ !== undefined) {
-        // Use any width that's been specifically set
-        width = this.width_;
-      } else if (this.height_ !== undefined) {
-        // Or calculate the width from the aspect ratio if a height has been set
-        width = this.height_ / ratioMultiplier;
-      } else {
-        // Or use the video's metadata, or use the video el's default of 300
-        width = this.videoWidth() || 300;
-      }
-      if (this.height_ !== undefined) {
-        // Use any height that's been specifically set
-        height = this.height_;
-      } else {
-        // Otherwise calculate the height from the ratio and the width
-        height = width * ratioMultiplier;
-      }
-
-      // Ensure the CSS class is valid by starting with an alpha character
-      if (/^[^a-zA-Z]/.test(this.id())) {
-        idClass = 'dimensions-' + this.id();
-      } else {
-        idClass = this.id() + '-dimensions';
-      }
-
-      // Ensure the right class is still on the player for the style element
-      this.addClass(idClass);
-      setTextContent(this.styleEl_, `
-      .${idClass} {
-        width: ${width}px;
-        height: ${height}px;
-      }
-
-      .${idClass}.vjs-fluid:not(.vjs-audio-only-mode) {
-        padding-top: ${ratioMultiplier * 100}%;
-      }
-    `);
-    }
-
-    /**
-     * Load/Create an instance of playback {@link Tech} including element
-     * and API methods. Then append the `Tech` element in `Player` as a child.
-     *
-     * @param {string} techName
-     *        name of the playback technology
-     *
-     * @param {string} source
-     *        video source
-     *
-     * @private
-     */
-    loadTech_(techName, source) {
-      // Pause and remove current playback technology
-      if (this.tech_) {
-        this.unloadTech_();
-      }
-      const titleTechName = toTitleCase$1(techName);
-      const camelTechName = techName.charAt(0).toLowerCase() + techName.slice(1);
-
-      // get rid of the HTML5 video tag as soon as we are using another tech
-      if (titleTechName !== 'Html5' && this.tag) {
-        Tech.getTech('Html5').disposeMediaElement(this.tag);
-        this.tag.player = null;
-        this.tag = null;
-      }
-      this.techName_ = titleTechName;
-
-      // Turn off API access because we're loading a new tech that might load asynchronously
-      this.isReady_ = false;
-      let autoplay = this.autoplay();
-
-      // if autoplay is a string (or `true` with normalizeAutoplay: true) we pass false to the tech
-      // because the player is going to handle autoplay on `loadstart`
-      if (typeof this.autoplay() === 'string' || this.autoplay() === true && this.options_.normalizeAutoplay) {
-        autoplay = false;
-      }
-
-      // Grab tech-specific options from player options and add source and parent element to use.
-      const techOptions = {
-        source,
-        autoplay,
-        'nativeControlsForTouch': this.options_.nativeControlsForTouch,
-        'playerId': this.id(),
-        'techId': `${this.id()}_${camelTechName}_api`,
-        'playsinline': this.options_.playsinline,
-        'preload': this.options_.preload,
-        'loop': this.options_.loop,
-        'disablePictureInPicture': this.options_.disablePictureInPicture,
-        'muted': this.options_.muted,
-        'poster': this.poster(),
-        'language': this.language(),
-        'playerElIngest': this.playerElIngest_ || false,
-        'vtt.js': this.options_['vtt.js'],
-        'canOverridePoster': !!this.options_.techCanOverridePoster,
-        'enableSourceset': this.options_.enableSourceset
-      };
-      ALL.names.forEach(name => {
-        const props = ALL[name];
-        techOptions[props.getterName] = this[props.privateName];
-      });
-      Object.assign(techOptions, this.options_[titleTechName]);
-      Object.assign(techOptions, this.options_[camelTechName]);
-      Object.assign(techOptions, this.options_[techName.toLowerCase()]);
-      if (this.tag) {
-        techOptions.tag = this.tag;
-      }
-      if (source && source.src === this.cache_.src && this.cache_.currentTime > 0) {
-        techOptions.startTime = this.cache_.currentTime;
-      }
-
-      // Initialize tech instance
-      const TechClass = Tech.getTech(techName);
-      if (!TechClass) {
-        throw new Error(`No Tech named '${titleTechName}' exists! '${titleTechName}' should be registered using videojs.registerTech()'`);
-      }
-      this.tech_ = new TechClass(techOptions);
-
-      // player.triggerReady is always async, so don't need this to be async
-      this.tech_.ready(bind_(this, this.handleTechReady_), true);
-      textTrackConverter.jsonToTextTracks(this.textTracksJson_ || [], this.tech_);
-
-      // Listen to all HTML5-defined events and trigger them on the player
-      TECH_EVENTS_RETRIGGER.forEach(event => {
-        this.on(this.tech_, event, e => this[`handleTech${toTitleCase$1(event)}_`](e));
-      });
-      Object.keys(TECH_EVENTS_QUEUE).forEach(event => {
-        this.on(this.tech_, event, eventObj => {
-          if (this.tech_.playbackRate() === 0 && this.tech_.seeking()) {
-            this.queuedCallbacks_.push({
-              callback: this[`handleTech${TECH_EVENTS_QUEUE[event]}_`].bind(this),
-              event: eventObj
-            });
-            return;
-          }
-          this[`handleTech${TECH_EVENTS_QUEUE[event]}_`](eventObj);
-        });
-      });
-      this.on(this.tech_, 'loadstart', e => this.handleTechLoadStart_(e));
-      this.on(this.tech_, 'sourceset', e => this.handleTechSourceset_(e));
-      this.on(this.tech_, 'waiting', e => this.handleTechWaiting_(e));
-      this.on(this.tech_, 'ended', e => this.handleTechEnded_(e));
-      this.on(this.tech_, 'seeking', e => this.handleTechSeeking_(e));
-      this.on(this.tech_, 'play', e => this.handleTechPlay_(e));
-      this.on(this.tech_, 'pause', e => this.handleTechPause_(e));
-      this.on(this.tech_, 'durationchange', e => this.handleTechDurationChange_(e));
-      this.on(this.tech_, 'fullscreenchange', (e, data) => this.handleTechFullscreenChange_(e, data));
-      this.on(this.tech_, 'fullscreenerror', (e, err) => this.handleTechFullscreenError_(e, err));
-      this.on(this.tech_, 'enterpictureinpicture', e => this.handleTechEnterPictureInPicture_(e));
-      this.on(this.tech_, 'leavepictureinpicture', e => this.handleTechLeavePictureInPicture_(e));
-      this.on(this.tech_, 'error', e => this.handleTechError_(e));
-      this.on(this.tech_, 'posterchange', e => this.handleTechPosterChange_(e));
-      this.on(this.tech_, 'textdata', e => this.handleTechTextData_(e));
-      this.on(this.tech_, 'ratechange', e => this.handleTechRateChange_(e));
-      this.on(this.tech_, 'loadedmetadata', this.boundUpdateStyleEl_);
-      this.usingNativeControls(this.techGet_('controls'));
-      if (this.controls() && !this.usingNativeControls()) {
-        this.addTechControlsListeners_();
-      }
-
-      // Add the tech element in the DOM if it was not already there
-      // Make sure to not insert the original video element if using Html5
-      if (this.tech_.el().parentNode !== this.el() && (titleTechName !== 'Html5' || !this.tag)) {
-        prependTo(this.tech_.el(), this.el());
-      }
-
-      // Get rid of the original video tag reference after the first tech is loaded
-      if (this.tag) {
-        this.tag.player = null;
-        this.tag = null;
-      }
-    }
-
-    /**
-     * Unload and dispose of the current playback {@link Tech}.
-     *
-     * @private
-     */
-    unloadTech_() {
-      // Save the current text tracks so that we can reuse the same text tracks with the next tech
-      ALL.names.forEach(name => {
-        const props = ALL[name];
-        this[props.privateName] = this[props.getterName]();
-      });
-      this.textTracksJson_ = textTrackConverter.textTracksToJson(this.tech_);
-      this.isReady_ = false;
-      this.tech_.dispose();
-      this.tech_ = false;
-      if (this.isPosterFromTech_) {
-        this.poster_ = '';
-        this.trigger('posterchange');
-      }
-      this.isPosterFromTech_ = false;
-    }
-
-    /**
-     * Return a reference to the current {@link Tech}.
-     * It will print a warning by default about the danger of using the tech directly
-     * but any argument that is passed in will silence the warning.
-     *
-     * @param {*} [safety]
-     *        Anything passed in to silence the warning
-     *
-     * @return {Tech}
-     *         The Tech
-     */
-    tech(safety) {
-      if (safety === undefined) {
-        log$1.warn('Using the tech directly can be dangerous. I hope you know what you\'re doing.\n' + 'See https://github.com/videojs/video.js/issues/2617 for more info.\n');
-      }
-      return this.tech_;
-    }
-
-    /**
-     * An object that contains Video.js version.
-     *
-     * @typedef {Object} PlayerVersion
-     *
-     * @property {string} 'video.js' - Video.js version
-     */
-
-    /**
-     * Returns an object with Video.js version.
-     *
-     * @return {PlayerVersion}
-     *          An object with Video.js version.
-     */
-    version() {
-      return {
-        'video.js': version$5
-      };
-    }
-
-    /**
-     * Set up click and touch listeners for the playback element
-     *
-     * - On desktops: a click on the video itself will toggle playback
-     * - On mobile devices: a click on the video toggles controls
-     *   which is done by toggling the user state between active and
-     *   inactive
-     * - A tap can signal that a user has become active or has become inactive
-     *   e.g. a quick tap on an iPhone movie should reveal the controls. Another
-     *   quick tap should hide them again (signaling the user is in an inactive
-     *   viewing state)
-     * - In addition to this, we still want the user to be considered inactive after
-     *   a few seconds of inactivity.
-     *
-     * > Note: the only part of iOS interaction we can't mimic with this setup
-     * is a touch and hold on the video element counting as activity in order to
-     * keep the controls showing, but that shouldn't be an issue. A touch and hold
-     * on any controls will still keep the user active
-     *
-     * @private
-     */
-    addTechControlsListeners_() {
-      // Make sure to remove all the previous listeners in case we are called multiple times.
-      this.removeTechControlsListeners_();
-      this.on(this.tech_, 'click', this.boundHandleTechClick_);
-      this.on(this.tech_, 'dblclick', this.boundHandleTechDoubleClick_);
-
-      // If the controls were hidden we don't want that to change without a tap event
-      // so we'll check if the controls were already showing before reporting user
-      // activity
-      this.on(this.tech_, 'touchstart', this.boundHandleTechTouchStart_);
-      this.on(this.tech_, 'touchmove', this.boundHandleTechTouchMove_);
-      this.on(this.tech_, 'touchend', this.boundHandleTechTouchEnd_);
-
-      // The tap listener needs to come after the touchend listener because the tap
-      // listener cancels out any reportedUserActivity when setting userActive(false)
-      this.on(this.tech_, 'tap', this.boundHandleTechTap_);
-    }
-
-    /**
-     * Remove the listeners used for click and tap controls. This is needed for
-     * toggling to controls disabled, where a tap/touch should do nothing.
-     *
-     * @private
-     */
-    removeTechControlsListeners_() {
-      // We don't want to just use `this.off()` because there might be other needed
-      // listeners added by techs that extend this.
-      this.off(this.tech_, 'tap', this.boundHandleTechTap_);
-      this.off(this.tech_, 'touchstart', this.boundHandleTechTouchStart_);
-      this.off(this.tech_, 'touchmove', this.boundHandleTechTouchMove_);
-      this.off(this.tech_, 'touchend', this.boundHandleTechTouchEnd_);
-      this.off(this.tech_, 'click', this.boundHandleTechClick_);
-      this.off(this.tech_, 'dblclick', this.boundHandleTechDoubleClick_);
-    }
-
-    /**
-     * Player waits for the tech to be ready
-     *
-     * @private
-     */
-    handleTechReady_() {
-      this.triggerReady();
-
-      // Keep the same volume as before
-      if (this.cache_.volume) {
-        this.techCall_('setVolume', this.cache_.volume);
-      }
-
-      // Look if the tech found a higher resolution poster while loading
-      this.handleTechPosterChange_();
-
-      // Update the duration if available
-      this.handleTechDurationChange_();
-    }
-
-    /**
-     * Retrigger the `loadstart` event that was triggered by the {@link Tech}.
-     *
-     * @fires Player#loadstart
-     * @listens Tech#loadstart
-     * @private
-     */
-    handleTechLoadStart_() {
-      // TODO: Update to use `emptied` event instead. See #1277.
-
-      this.removeClass('vjs-ended', 'vjs-seeking');
-
-      // reset the error state
-      this.error(null);
-
-      // Update the duration
-      this.handleTechDurationChange_();
-      if (!this.paused()) {
-        /**
-         * Fired when the user agent begins looking for media data
-         *
-         * @event Player#loadstart
-         * @type {Event}
-         */
-        this.trigger('loadstart');
-      } else {
-        // reset the hasStarted state
-        this.hasStarted(false);
-        this.trigger('loadstart');
-      }
-
-      // autoplay happens after loadstart for the browser,
-      // so we mimic that behavior
-      this.manualAutoplay_(this.autoplay() === true && this.options_.normalizeAutoplay ? 'play' : this.autoplay());
-    }
-
-    /**
-     * Handle autoplay string values, rather than the typical boolean
-     * values that should be handled by the tech. Note that this is not
-     * part of any specification. Valid values and what they do can be
-     * found on the autoplay getter at Player#autoplay()
-     */
-    manualAutoplay_(type) {
-      if (!this.tech_ || typeof type !== 'string') {
-        return;
-      }
-
-      // Save original muted() value, set muted to true, and attempt to play().
-      // On promise rejection, restore muted from saved value
-      const resolveMuted = () => {
-        const previouslyMuted = this.muted();
-        this.muted(true);
-        const restoreMuted = () => {
-          this.muted(previouslyMuted);
-        };
-
-        // restore muted on play terminatation
-        this.playTerminatedQueue_.push(restoreMuted);
-        const mutedPromise = this.play();
-        if (!isPromise(mutedPromise)) {
-          return;
-        }
-        return mutedPromise.catch(err => {
-          restoreMuted();
-          throw new Error(`Rejection at manualAutoplay. Restoring muted value. ${err ? err : ''}`);
-        });
-      };
-      let promise;
-
-      // if muted defaults to true
-      // the only thing we can do is call play
-      if (type === 'any' && !this.muted()) {
-        promise = this.play();
-        if (isPromise(promise)) {
-          promise = promise.catch(resolveMuted);
-        }
-      } else if (type === 'muted' && !this.muted()) {
-        promise = resolveMuted();
-      } else {
-        promise = this.play();
-      }
-      if (!isPromise(promise)) {
-        return;
-      }
-      return promise.then(() => {
-        this.trigger({
-          type: 'autoplay-success',
-          autoplay: type
-        });
-      }).catch(() => {
-        this.trigger({
-          type: 'autoplay-failure',
-          autoplay: type
-        });
-      });
-    }
-
-    /**
-     * Update the internal source caches so that we return the correct source from
-     * `src()`, `currentSource()`, and `currentSources()`.
-     *
-     * > Note: `currentSources` will not be updated if the source that is passed in exists
-     *         in the current `currentSources` cache.
-     *
-     *
-     * @param {Tech~SourceObject} srcObj
-     *        A string or object source to update our caches to.
-     */
-    updateSourceCaches_(srcObj = '') {
-      let src = srcObj;
-      let type = '';
-      if (typeof src !== 'string') {
-        src = srcObj.src;
-        type = srcObj.type;
-      }
-
-      // make sure all the caches are set to default values
-      // to prevent null checking
-      this.cache_.source = this.cache_.source || {};
-      this.cache_.sources = this.cache_.sources || [];
-
-      // try to get the type of the src that was passed in
-      if (src && !type) {
-        type = findMimetype(this, src);
-      }
-
-      // update `currentSource` cache always
-      this.cache_.source = merge$2({}, srcObj, {
-        src,
-        type
-      });
-      const matchingSources = this.cache_.sources.filter(s => s.src && s.src === src);
-      const sourceElSources = [];
-      const sourceEls = this.$$('source');
-      const matchingSourceEls = [];
-      for (let i = 0; i < sourceEls.length; i++) {
-        const sourceObj = getAttributes(sourceEls[i]);
-        sourceElSources.push(sourceObj);
-        if (sourceObj.src && sourceObj.src === src) {
-          matchingSourceEls.push(sourceObj.src);
-        }
-      }
-
-      // if we have matching source els but not matching sources
-      // the current source cache is not up to date
-      if (matchingSourceEls.length && !matchingSources.length) {
-        this.cache_.sources = sourceElSources;
-        // if we don't have matching source or source els set the
-        // sources cache to the `currentSource` cache
-      } else if (!matchingSources.length) {
-        this.cache_.sources = [this.cache_.source];
-      }
-
-      // update the tech `src` cache
-      this.cache_.src = src;
-    }
-
-    /**
-     * *EXPERIMENTAL* Fired when the source is set or changed on the {@link Tech}
-     * causing the media element to reload.
-     *
-     * It will fire for the initial source and each subsequent source.
-     * This event is a custom event from Video.js and is triggered by the {@link Tech}.
-     *
-     * The event object for this event contains a `src` property that will contain the source
-     * that was available when the event was triggered. This is generally only necessary if Video.js
-     * is switching techs while the source was being changed.
-     *
-     * It is also fired when `load` is called on the player (or media element)
-     * because the {@link https://html.spec.whatwg.org/multipage/media.html#dom-media-load|specification for `load`}
-     * says that the resource selection algorithm needs to be aborted and restarted.
-     * In this case, it is very likely that the `src` property will be set to the
-     * empty string `""` to indicate we do not know what the source will be but
-     * that it is changing.
-     *
-     * *This event is currently still experimental and may change in minor releases.*
-     * __To use this, pass `enableSourceset` option to the player.__
-     *
-     * @event Player#sourceset
-     * @type {Event}
-     * @prop {string} src
-     *                The source url available when the `sourceset` was triggered.
-     *                It will be an empty string if we cannot know what the source is
-     *                but know that the source will change.
-     */
-    /**
-     * Retrigger the `sourceset` event that was triggered by the {@link Tech}.
-     *
-     * @fires Player#sourceset
-     * @listens Tech#sourceset
-     * @private
-     */
-    handleTechSourceset_(event) {
-      // only update the source cache when the source
-      // was not updated using the player api
-      if (!this.changingSrc_) {
-        let updateSourceCaches = src => this.updateSourceCaches_(src);
-        const playerSrc = this.currentSource().src;
-        const eventSrc = event.src;
-
-        // if we have a playerSrc that is not a blob, and a tech src that is a blob
-        if (playerSrc && !/^blob:/.test(playerSrc) && /^blob:/.test(eventSrc)) {
-          // if both the tech source and the player source were updated we assume
-          // something like @videojs/http-streaming did the sourceset and skip updating the source cache.
-          if (!this.lastSource_ || this.lastSource_.tech !== eventSrc && this.lastSource_.player !== playerSrc) {
-            updateSourceCaches = () => {};
-          }
-        }
-
-        // update the source to the initial source right away
-        // in some cases this will be empty string
-        updateSourceCaches(eventSrc);
-
-        // if the `sourceset` `src` was an empty string
-        // wait for a `loadstart` to update the cache to `currentSrc`.
-        // If a sourceset happens before a `loadstart`, we reset the state
-        if (!event.src) {
-          this.tech_.any(['sourceset', 'loadstart'], e => {
-            // if a sourceset happens before a `loadstart` there
-            // is nothing to do as this `handleTechSourceset_`
-            // will be called again and this will be handled there.
-            if (e.type === 'sourceset') {
-              return;
-            }
-            const techSrc = this.techGet_('currentSrc');
-            this.lastSource_.tech = techSrc;
-            this.updateSourceCaches_(techSrc);
-          });
-        }
-      }
-      this.lastSource_ = {
-        player: this.currentSource().src,
-        tech: event.src
-      };
-      this.trigger({
-        src: event.src,
-        type: 'sourceset'
-      });
-    }
-
-    /**
-     * Add/remove the vjs-has-started class
-     *
-     *
-     * @param {boolean} request
-     *        - true: adds the class
-     *        - false: remove the class
-     *
-     * @return {boolean}
-     *         the boolean value of hasStarted_
-     */
-    hasStarted(request) {
-      if (request === undefined) {
-        // act as getter, if we have no request to change
-        return this.hasStarted_;
-      }
-      if (request === this.hasStarted_) {
-        return;
-      }
-      this.hasStarted_ = request;
-      if (this.hasStarted_) {
-        this.addClass('vjs-has-started');
-      } else {
-        this.removeClass('vjs-has-started');
-      }
-    }
-
-    /**
-     * Fired whenever the media begins or resumes playback
-     *
-     * @see [Spec]{@link https://html.spec.whatwg.org/multipage/embedded-content.html#dom-media-play}
-     * @fires Player#play
-     * @listens Tech#play
-     * @private
-     */
-    handleTechPlay_() {
-      this.removeClass('vjs-ended', 'vjs-paused');
-      this.addClass('vjs-playing');
-
-      // hide the poster when the user hits play
-      this.hasStarted(true);
-      /**
-       * Triggered whenever an {@link Tech#play} event happens. Indicates that
-       * playback has started or resumed.
-       *
-       * @event Player#play
-       * @type {Event}
-       */
-      this.trigger('play');
-    }
-
-    /**
-     * Retrigger the `ratechange` event that was triggered by the {@link Tech}.
-     *
-     * If there were any events queued while the playback rate was zero, fire
-     * those events now.
-     *
-     * @private
-     * @method Player#handleTechRateChange_
-     * @fires Player#ratechange
-     * @listens Tech#ratechange
-     */
-    handleTechRateChange_() {
-      if (this.tech_.playbackRate() > 0 && this.cache_.lastPlaybackRate === 0) {
-        this.queuedCallbacks_.forEach(queued => queued.callback(queued.event));
-        this.queuedCallbacks_ = [];
-      }
-      this.cache_.lastPlaybackRate = this.tech_.playbackRate();
-      /**
-       * Fires when the playing speed of the audio/video is changed
-       *
-       * @event Player#ratechange
-       * @type {event}
-       */
-      this.trigger('ratechange');
-    }
-
-    /**
-     * Retrigger the `waiting` event that was triggered by the {@link Tech}.
-     *
-     * @fires Player#waiting
-     * @listens Tech#waiting
-     * @private
-     */
-    handleTechWaiting_() {
-      this.addClass('vjs-waiting');
-      /**
-       * A readyState change on the DOM element has caused playback to stop.
-       *
-       * @event Player#waiting
-       * @type {Event}
-       */
-      this.trigger('waiting');
-
-      // Browsers may emit a timeupdate event after a waiting event. In order to prevent
-      // premature removal of the waiting class, wait for the time to change.
-      const timeWhenWaiting = this.currentTime();
-      const timeUpdateListener = () => {
-        if (timeWhenWaiting !== this.currentTime()) {
-          this.removeClass('vjs-waiting');
-          this.off('timeupdate', timeUpdateListener);
-        }
-      };
-      this.on('timeupdate', timeUpdateListener);
-    }
-
-    /**
-     * Retrigger the `canplay` event that was triggered by the {@link Tech}.
-     * > Note: This is not consistent between browsers. See #1351
-     *
-     * @fires Player#canplay
-     * @listens Tech#canplay
-     * @private
-     */
-    handleTechCanPlay_() {
-      this.removeClass('vjs-waiting');
-      /**
-       * The media has a readyState of HAVE_FUTURE_DATA or greater.
-       *
-       * @event Player#canplay
-       * @type {Event}
-       */
-      this.trigger('canplay');
-    }
-
-    /**
-     * Retrigger the `canplaythrough` event that was triggered by the {@link Tech}.
-     *
-     * @fires Player#canplaythrough
-     * @listens Tech#canplaythrough
-     * @private
-     */
-    handleTechCanPlayThrough_() {
-      this.removeClass('vjs-waiting');
-      /**
-       * The media has a readyState of HAVE_ENOUGH_DATA or greater. This means that the
-       * entire media file can be played without buffering.
-       *
-       * @event Player#canplaythrough
-       * @type {Event}
-       */
-      this.trigger('canplaythrough');
-    }
-
-    /**
-     * Retrigger the `playing` event that was triggered by the {@link Tech}.
-     *
-     * @fires Player#playing
-     * @listens Tech#playing
-     * @private
-     */
-    handleTechPlaying_() {
-      this.removeClass('vjs-waiting');
-      /**
-       * The media is no longer blocked from playback, and has started playing.
-       *
-       * @event Player#playing
-       * @type {Event}
-       */
-      this.trigger('playing');
-    }
-
-    /**
-     * Retrigger the `seeking` event that was triggered by the {@link Tech}.
-     *
-     * @fires Player#seeking
-     * @listens Tech#seeking
-     * @private
-     */
-    handleTechSeeking_() {
-      this.addClass('vjs-seeking');
-      /**
-       * Fired whenever the player is jumping to a new time
-       *
-       * @event Player#seeking
-       * @type {Event}
-       */
-      this.trigger('seeking');
-    }
-
-    /**
-     * Retrigger the `seeked` event that was triggered by the {@link Tech}.
-     *
-     * @fires Player#seeked
-     * @listens Tech#seeked
-     * @private
-     */
-    handleTechSeeked_() {
-      this.removeClass('vjs-seeking', 'vjs-ended');
-      /**
-       * Fired when the player has finished jumping to a new time
-       *
-       * @event Player#seeked
-       * @type {Event}
-       */
-      this.trigger('seeked');
-    }
-
-    /**
-     * Retrigger the `pause` event that was triggered by the {@link Tech}.
-     *
-     * @fires Player#pause
-     * @listens Tech#pause
-     * @private
-     */
-    handleTechPause_() {
-      this.removeClass('vjs-playing');
-      this.addClass('vjs-paused');
-      /**
-       * Fired whenever the media has been paused
-       *
-       * @event Player#pause
-       * @type {Event}
-       */
-      this.trigger('pause');
-    }
-
-    /**
-     * Retrigger the `ended` event that was triggered by the {@link Tech}.
-     *
-     * @fires Player#ended
-     * @listens Tech#ended
-     * @private
-     */
-    handleTechEnded_() {
-      this.addClass('vjs-ended');
-      this.removeClass('vjs-waiting');
-      if (this.options_.loop) {
-        this.currentTime(0);
-        this.play();
-      } else if (!this.paused()) {
-        this.pause();
-      }
-
-      /**
-       * Fired when the end of the media resource is reached (currentTime == duration)
-       *
-       * @event Player#ended
-       * @type {Event}
-       */
-      this.trigger('ended');
-    }
-
-    /**
-     * Fired when the duration of the media resource is first known or changed
-     *
-     * @listens Tech#durationchange
-     * @private
-     */
-    handleTechDurationChange_() {
-      this.duration(this.techGet_('duration'));
-    }
-
-    /**
-     * Handle a click on the media element to play/pause
-     *
-     * @param {Event} event
-     *        the event that caused this function to trigger
-     *
-     * @listens Tech#click
-     * @private
-     */
-    handleTechClick_(event) {
-      // When controls are disabled a click should not toggle playback because
-      // the click is considered a control
-      if (!this.controls_) {
-        return;
-      }
-      if (this.options_ === undefined || this.options_.userActions === undefined || this.options_.userActions.click === undefined || this.options_.userActions.click !== false) {
-        if (this.options_ !== undefined && this.options_.userActions !== undefined && typeof this.options_.userActions.click === 'function') {
-          this.options_.userActions.click.call(this, event);
-        } else if (this.paused()) {
-          silencePromise(this.play());
-        } else {
-          this.pause();
-        }
-      }
-    }
-
-    /**
-     * Handle a double-click on the media element to enter/exit fullscreen
-     *
-     * @param {Event} event
-     *        the event that caused this function to trigger
-     *
-     * @listens Tech#dblclick
-     * @private
-     */
-    handleTechDoubleClick_(event) {
-      if (!this.controls_) {
-        return;
-      }
-
-      // we do not want to toggle fullscreen state
-      // when double-clicking inside a control bar or a modal
-      const inAllowedEls = Array.prototype.some.call(this.$$('.vjs-control-bar, .vjs-modal-dialog'), el => el.contains(event.target));
-      if (!inAllowedEls) {
-        /*
-         * options.userActions.doubleClick
-         *
-         * If `undefined` or `true`, double-click toggles fullscreen if controls are present
-         * Set to `false` to disable double-click handling
-         * Set to a function to substitute an external double-click handler
-         */
-        if (this.options_ === undefined || this.options_.userActions === undefined || this.options_.userActions.doubleClick === undefined || this.options_.userActions.doubleClick !== false) {
-          if (this.options_ !== undefined && this.options_.userActions !== undefined && typeof this.options_.userActions.doubleClick === 'function') {
-            this.options_.userActions.doubleClick.call(this, event);
-          } else if (this.isFullscreen()) {
-            this.exitFullscreen();
-          } else {
-            this.requestFullscreen();
-          }
-        }
-      }
-    }
-
-    /**
-     * Handle a tap on the media element. It will toggle the user
-     * activity state, which hides and shows the controls.
-     *
-     * @listens Tech#tap
-     * @private
-     */
-    handleTechTap_() {
-      this.userActive(!this.userActive());
-    }
-
-    /**
-     * Handle touch to start
-     *
-     * @listens Tech#touchstart
-     * @private
-     */
-    handleTechTouchStart_() {
-      this.userWasActive = this.userActive();
-    }
-
-    /**
-     * Handle touch to move
-     *
-     * @listens Tech#touchmove
-     * @private
-     */
-    handleTechTouchMove_() {
-      if (this.userWasActive) {
-        this.reportUserActivity();
-      }
-    }
-
-    /**
-     * Handle touch to end
-     *
-     * @param {Event} event
-     *        the touchend event that triggered
-     *        this function
-     *
-     * @listens Tech#touchend
-     * @private
-     */
-    handleTechTouchEnd_(event) {
-      // Stop the mouse events from also happening
-      if (event.cancelable) {
-        event.preventDefault();
-      }
-    }
-
-    /**
-     * @private
-     */
-    toggleFullscreenClass_() {
-      if (this.isFullscreen()) {
-        this.addClass('vjs-fullscreen');
-      } else {
-        this.removeClass('vjs-fullscreen');
-      }
-    }
-
-    /**
-     * when the document fschange event triggers it calls this
-     */
-    documentFullscreenChange_(e) {
-      const targetPlayer = e.target.player;
-
-      // if another player was fullscreen
-      // do a null check for targetPlayer because older firefox's would put document as e.target
-      if (targetPlayer && targetPlayer !== this) {
-        return;
-      }
-      const el = this.el();
-      let isFs = document[this.fsApi_.fullscreenElement] === el;
-      if (!isFs && el.matches) {
-        isFs = el.matches(':' + this.fsApi_.fullscreen);
-      }
-      this.isFullscreen(isFs);
-    }
-
-    /**
-     * Handle Tech Fullscreen Change
-     *
-     * @param {Event} event
-     *        the fullscreenchange event that triggered this function
-     *
-     * @param {Object} data
-     *        the data that was sent with the event
-     *
-     * @private
-     * @listens Tech#fullscreenchange
-     * @fires Player#fullscreenchange
-     */
-    handleTechFullscreenChange_(event, data) {
-      if (data) {
-        if (data.nativeIOSFullscreen) {
-          this.addClass('vjs-ios-native-fs');
-          this.tech_.one('webkitendfullscreen', () => {
-            this.removeClass('vjs-ios-native-fs');
-          });
-        }
-        this.isFullscreen(data.isFullscreen);
-      }
-    }
-    handleTechFullscreenError_(event, err) {
-      this.trigger('fullscreenerror', err);
-    }
-
-    /**
-     * @private
-     */
-    togglePictureInPictureClass_() {
-      if (this.isInPictureInPicture()) {
-        this.addClass('vjs-picture-in-picture');
-      } else {
-        this.removeClass('vjs-picture-in-picture');
-      }
-    }
-
-    /**
-     * Handle Tech Enter Picture-in-Picture.
-     *
-     * @param {Event} event
-     *        the enterpictureinpicture event that triggered this function
-     *
-     * @private
-     * @listens Tech#enterpictureinpicture
-     */
-    handleTechEnterPictureInPicture_(event) {
-      this.isInPictureInPicture(true);
-    }
-
-    /**
-     * Handle Tech Leave Picture-in-Picture.
-     *
-     * @param {Event} event
-     *        the leavepictureinpicture event that triggered this function
-     *
-     * @private
-     * @listens Tech#leavepictureinpicture
-     */
-    handleTechLeavePictureInPicture_(event) {
-      this.isInPictureInPicture(false);
-    }
-
-    /**
-     * Fires when an error occurred during the loading of an audio/video.
-     *
-     * @private
-     * @listens Tech#error
-     */
-    handleTechError_() {
-      const error = this.tech_.error();
-      if (error) {
-        this.error(error);
-      }
-    }
-
-    /**
-     * Retrigger the `textdata` event that was triggered by the {@link Tech}.
-     *
-     * @fires Player#textdata
-     * @listens Tech#textdata
-     * @private
-     */
-    handleTechTextData_() {
-      let data = null;
-      if (arguments.length > 1) {
-        data = arguments[1];
-      }
-
-      /**
-       * Fires when we get a textdata event from tech
-       *
-       * @event Player#textdata
-       * @type {Event}
-       */
-      this.trigger('textdata', data);
-    }
-
-    /**
-     * Get object for cached values.
-     *
-     * @return {Object}
-     *         get the current object cache
-     */
-    getCache() {
-      return this.cache_;
-    }
-
-    /**
-     * Resets the internal cache object.
-     *
-     * Using this function outside the player constructor or reset method may
-     * have unintended side-effects.
-     *
-     * @private
-     */
-    resetCache_() {
-      this.cache_ = {
-        // Right now, the currentTime is not _really_ cached because it is always
-        // retrieved from the tech (see: currentTime). However, for completeness,
-        // we set it to zero here to ensure that if we do start actually caching
-        // it, we reset it along with everything else.
-        currentTime: 0,
-        initTime: 0,
-        inactivityTimeout: this.options_.inactivityTimeout,
-        duration: NaN,
-        lastVolume: 1,
-        lastPlaybackRate: this.defaultPlaybackRate(),
-        media: null,
-        src: '',
-        source: {},
-        sources: [],
-        playbackRates: [],
-        volume: 1
-      };
-    }
-
-    /**
-     * Pass values to the playback tech
-     *
-     * @param {string} [method]
-     *        the method to call
-     *
-     * @param {Object} [arg]
-     *        the argument to pass
-     *
-     * @private
-     */
-    techCall_(method, arg) {
-      // If it's not ready yet, call method when it is
-
-      this.ready(function () {
-        if (method in allowedSetters) {
-          return set(this.middleware_, this.tech_, method, arg);
-        } else if (method in allowedMediators) {
-          return mediate(this.middleware_, this.tech_, method, arg);
-        }
-        try {
-          if (this.tech_) {
-            this.tech_[method](arg);
-          }
-        } catch (e) {
-          log$1(e);
-          throw e;
-        }
-      }, true);
-    }
-
-    /**
-     * Mediate attempt to call playback tech method
-     * and return the value of the method called.
-     *
-     * @param {string} method
-     *        Tech method
-     *
-     * @return {*}
-     *         Value returned by the tech method called, undefined if tech
-     *         is not ready or tech method is not present
-     *
-     * @private
-     */
-    techGet_(method) {
-      if (!this.tech_ || !this.tech_.isReady_) {
-        return;
-      }
-      if (method in allowedGetters) {
-        return get(this.middleware_, this.tech_, method);
-      } else if (method in allowedMediators) {
-        return mediate(this.middleware_, this.tech_, method);
-      }
-
-      // Log error when playback tech object is present but method
-      // is undefined or unavailable
-      try {
-        return this.tech_[method]();
-      } catch (e) {
-        // When building additional tech libs, an expected method may not be defined yet
-        if (this.tech_[method] === undefined) {
-          log$1(`Video.js: ${method} method not defined for ${this.techName_} playback technology.`, e);
-          throw e;
-        }
-
-        // When a method isn't available on the object it throws a TypeError
-        if (e.name === 'TypeError') {
-          log$1(`Video.js: ${method} unavailable on ${this.techName_} playback technology element.`, e);
-          this.tech_.isReady_ = false;
-          throw e;
-        }
-
-        // If error unknown, just log and throw
-        log$1(e);
-        throw e;
-      }
-    }
-
-    /**
-     * Attempt to begin playback at the first opportunity.
-     *
-     * @return {Promise|undefined}
-     *         Returns a promise if the browser supports Promises (or one
-     *         was passed in as an option). This promise will be resolved on
-     *         the return value of play. If this is undefined it will fulfill the
-     *         promise chain otherwise the promise chain will be fulfilled when
-     *         the promise from play is fulfilled.
-     */
-    play() {
-      return new Promise(resolve => {
-        this.play_(resolve);
-      });
-    }
-
-    /**
-     * The actual logic for play, takes a callback that will be resolved on the
-     * return value of play. This allows us to resolve to the play promise if there
-     * is one on modern browsers.
-     *
-     * @private
-     * @param {Function} [callback]
-     *        The callback that should be called when the techs play is actually called
-     */
-    play_(callback = silencePromise) {
-      this.playCallbacks_.push(callback);
-      const isSrcReady = Boolean(!this.changingSrc_ && (this.src() || this.currentSrc()));
-      const isSafariOrIOS = Boolean(IS_ANY_SAFARI || IS_IOS);
-
-      // treat calls to play_ somewhat like the `one` event function
-      if (this.waitToPlay_) {
-        this.off(['ready', 'loadstart'], this.waitToPlay_);
-        this.waitToPlay_ = null;
-      }
-
-      // if the player/tech is not ready or the src itself is not ready
-      // queue up a call to play on `ready` or `loadstart`
-      if (!this.isReady_ || !isSrcReady) {
-        this.waitToPlay_ = e => {
-          this.play_();
-        };
-        this.one(['ready', 'loadstart'], this.waitToPlay_);
-
-        // if we are in Safari, there is a high chance that loadstart will trigger after the gesture timeperiod
-        // in that case, we need to prime the video element by calling load so it'll be ready in time
-        if (!isSrcReady && isSafariOrIOS) {
-          this.load();
-        }
-        return;
-      }
-
-      // If the player/tech is ready and we have a source, we can attempt playback.
-      const val = this.techGet_('play');
-
-      // For native playback, reset the progress bar if we get a play call from a replay.
-      const isNativeReplay = isSafariOrIOS && this.hasClass('vjs-ended');
-      if (isNativeReplay) {
-        this.resetProgressBar_();
-      }
-      // play was terminated if the returned value is null
-      if (val === null) {
-        this.runPlayTerminatedQueue_();
-      } else {
-        this.runPlayCallbacks_(val);
-      }
-    }
-
-    /**
-     * These functions will be run when if play is terminated. If play
-     * runPlayCallbacks_ is run these function will not be run. This allows us
-     * to differentiate between a terminated play and an actual call to play.
-     */
-    runPlayTerminatedQueue_() {
-      const queue = this.playTerminatedQueue_.slice(0);
-      this.playTerminatedQueue_ = [];
-      queue.forEach(function (q) {
-        q();
-      });
-    }
-
-    /**
-     * When a callback to play is delayed we have to run these
-     * callbacks when play is actually called on the tech. This function
-     * runs the callbacks that were delayed and accepts the return value
-     * from the tech.
-     *
-     * @param {undefined|Promise} val
-     *        The return value from the tech.
-     */
-    runPlayCallbacks_(val) {
-      const callbacks = this.playCallbacks_.slice(0);
-      this.playCallbacks_ = [];
-      // clear play terminatedQueue since we finished a real play
-      this.playTerminatedQueue_ = [];
-      callbacks.forEach(function (cb) {
-        cb(val);
-      });
-    }
-
-    /**
-     * Pause the video playback
-     */
-    pause() {
-      this.techCall_('pause');
-    }
-
-    /**
-     * Check if the player is paused or has yet to play
-     *
-     * @return {boolean}
-     *         - false: if the media is currently playing
-     *         - true: if media is not currently playing
-     */
-    paused() {
-      // The initial state of paused should be true (in Safari it's actually false)
-      return this.techGet_('paused') === false ? false : true;
-    }
-
-    /**
-     * Get a TimeRange object representing the current ranges of time that the user
-     * has played.
-     *
-     * @return { import('./utils/time').TimeRange }
-     *         A time range object that represents all the increments of time that have
-     *         been played.
-     */
-    played() {
-      return this.techGet_('played') || createTimeRanges$1(0, 0);
-    }
-
-    /**
-     * Sets or returns whether or not the user is "scrubbing". Scrubbing is
-     * when the user has clicked the progress bar handle and is
-     * dragging it along the progress bar.
-     *
-     * @param {boolean} [isScrubbing]
-     *        whether the user is or is not scrubbing
-     *
-     * @return {boolean|undefined}
-     *         - The value of scrubbing when getting
-     *         - Nothing when setting
-     */
-    scrubbing(isScrubbing) {
-      if (typeof isScrubbing === 'undefined') {
-        return this.scrubbing_;
-      }
-      this.scrubbing_ = !!isScrubbing;
-      this.techCall_('setScrubbing', this.scrubbing_);
-      if (isScrubbing) {
-        this.addClass('vjs-scrubbing');
-      } else {
-        this.removeClass('vjs-scrubbing');
-      }
-    }
-
-    /**
-     * Get or set the current time (in seconds)
-     *
-     * @param {number|string} [seconds]
-     *        The time to seek to in seconds
-     *
-     * @return {number|undefined}
-     *         - the current time in seconds when getting
-     *         - Nothing when setting
-     */
-    currentTime(seconds) {
-      if (seconds === undefined) {
-        // cache last currentTime and return. default to 0 seconds
-        //
-        // Caching the currentTime is meant to prevent a massive amount of reads on the tech's
-        // currentTime when scrubbing, but may not provide much performance benefit after all.
-        // Should be tested. Also something has to read the actual current time or the cache will
-        // never get updated.
-        this.cache_.currentTime = this.techGet_('currentTime') || 0;
-        return this.cache_.currentTime;
-      }
-      if (seconds < 0) {
-        seconds = 0;
-      }
-      if (!this.isReady_ || this.changingSrc_ || !this.tech_ || !this.tech_.isReady_) {
-        this.cache_.initTime = seconds;
-        this.off('canplay', this.boundApplyInitTime_);
-        this.one('canplay', this.boundApplyInitTime_);
-        return;
-      }
-      this.techCall_('setCurrentTime', seconds);
-      this.cache_.initTime = 0;
-      if (isFinite(seconds)) {
-        this.cache_.currentTime = Number(seconds);
-      }
-    }
-
-    /**
-     * Apply the value of initTime stored in cache as currentTime.
-     *
-     * @private
-     */
-    applyInitTime_() {
-      this.currentTime(this.cache_.initTime);
-    }
-
-    /**
-     * Normally gets the length in time of the video in seconds;
-     * in all but the rarest use cases an argument will NOT be passed to the method
-     *
-     * > **NOTE**: The video must have started loading before the duration can be
-     * known, and depending on preload behaviour may not be known until the video starts
-     * playing.
-     *
-     * @fires Player#durationchange
-     *
-     * @param {number} [seconds]
-     *        The duration of the video to set in seconds
-     *
-     * @return {number|undefined}
-     *         - The duration of the video in seconds when getting
-     *         - Nothing when setting
-     */
-    duration(seconds) {
-      if (seconds === undefined) {
-        // return NaN if the duration is not known
-        return this.cache_.duration !== undefined ? this.cache_.duration : NaN;
-      }
-      seconds = parseFloat(seconds);
-
-      // Standardize on Infinity for signaling video is live
-      if (seconds < 0) {
-        seconds = Infinity;
-      }
-      if (seconds !== this.cache_.duration) {
-        // Cache the last set value for optimized scrubbing
-        this.cache_.duration = seconds;
-        if (seconds === Infinity) {
-          this.addClass('vjs-live');
-        } else {
-          this.removeClass('vjs-live');
-        }
-        if (!isNaN(seconds)) {
-          // Do not fire durationchange unless the duration value is known.
-          // @see [Spec]{@link https://www.w3.org/TR/2011/WD-html5-20110113/video.html#media-element-load-algorithm}
-
-          /**
-           * @event Player#durationchange
-           * @type {Event}
-           */
-          this.trigger('durationchange');
-        }
-      }
-    }
-
-    /**
-     * Calculates how much time is left in the video. Not part
-     * of the native video API.
-     *
-     * @return {number}
-     *         The time remaining in seconds
-     */
-    remainingTime() {
-      return this.duration() - this.currentTime();
-    }
-
-    /**
-     * A remaining time function that is intended to be used when
-     * the time is to be displayed directly to the user.
-     *
-     * @return {number}
-     *         The rounded time remaining in seconds
-     */
-    remainingTimeDisplay() {
-      return Math.floor(this.duration()) - Math.floor(this.currentTime());
-    }
-
-    //
-    // Kind of like an array of portions of the video that have been downloaded.
-
-    /**
-     * Get a TimeRange object with an array of the times of the video
-     * that have been downloaded. If you just want the percent of the
-     * video that's been downloaded, use bufferedPercent.
-     *
-     * @see [Buffered Spec]{@link http://dev.w3.org/html5/spec/video.html#dom-media-buffered}
-     *
-     * @return { import('./utils/time').TimeRange }
-     *         A mock {@link TimeRanges} object (following HTML spec)
-     */
-    buffered() {
-      let buffered = this.techGet_('buffered');
-      if (!buffered || !buffered.length) {
-        buffered = createTimeRanges$1(0, 0);
-      }
-      return buffered;
-    }
-
-    /**
-     * Get the TimeRanges of the media that are currently available
-     * for seeking to.
-     *
-     * @see [Seekable Spec]{@link https://html.spec.whatwg.org/multipage/media.html#dom-media-seekable}
-     *
-     * @return { import('./utils/time').TimeRange }
-     *         A mock {@link TimeRanges} object (following HTML spec)
-     */
-    seekable() {
-      let seekable = this.techGet_('seekable');
-      if (!seekable || !seekable.length) {
-        seekable = createTimeRanges$1(0, 0);
-      }
-      return seekable;
-    }
-
-    /**
-     * Returns whether the player is in the "seeking" state.
-     *
-     * @return {boolean} True if the player is in the seeking state, false if not.
-     */
-    seeking() {
-      return this.techGet_('seeking');
-    }
-
-    /**
-     * Returns whether the player is in the "ended" state.
-     *
-     * @return {boolean} True if the player is in the ended state, false if not.
-     */
-    ended() {
-      return this.techGet_('ended');
-    }
-
-    /**
-     * Returns the current state of network activity for the element, from
-     * the codes in the list below.
-     * - NETWORK_EMPTY (numeric value 0)
-     *   The element has not yet been initialised. All attributes are in
-     *   their initial states.
-     * - NETWORK_IDLE (numeric value 1)
-     *   The element's resource selection algorithm is active and has
-     *   selected a resource, but it is not actually using the network at
-     *   this time.
-     * - NETWORK_LOADING (numeric value 2)
-     *   The user agent is actively trying to download data.
-     * - NETWORK_NO_SOURCE (numeric value 3)
-     *   The element's resource selection algorithm is active, but it has
-     *   not yet found a resource to use.
-     *
-     * @see https://html.spec.whatwg.org/multipage/embedded-content.html#network-states
-     * @return {number} the current network activity state
-     */
-    networkState() {
-      return this.techGet_('networkState');
-    }
-
-    /**
-     * Returns a value that expresses the current state of the element
-     * with respect to rendering the current playback position, from the
-     * codes in the list below.
-     * - HAVE_NOTHING (numeric value 0)
-     *   No information regarding the media resource is available.
-     * - HAVE_METADATA (numeric value 1)
-     *   Enough of the resource has been obtained that the duration of the
-     *   resource is available.
-     * - HAVE_CURRENT_DATA (numeric value 2)
-     *   Data for the immediate current playback position is available.
-     * - HAVE_FUTURE_DATA (numeric value 3)
-     *   Data for the immediate current playback position is available, as
-     *   well as enough data for the user agent to advance the current
-     *   playback position in the direction of playback.
-     * - HAVE_ENOUGH_DATA (numeric value 4)
-     *   The user agent estimates that enough data is available for
-     *   playback to proceed uninterrupted.
-     *
-     * @see https://html.spec.whatwg.org/multipage/embedded-content.html#dom-media-readystate
-     * @return {number} the current playback rendering state
-     */
-    readyState() {
-      return this.techGet_('readyState');
-    }
-
-    /**
-     * Get the percent (as a decimal) of the video that's been downloaded.
-     * This method is not a part of the native HTML video API.
-     *
-     * @return {number}
-     *         A decimal between 0 and 1 representing the percent
-     *         that is buffered 0 being 0% and 1 being 100%
-     */
-    bufferedPercent() {
-      return bufferedPercent(this.buffered(), this.duration());
-    }
-
-    /**
-     * Get the ending time of the last buffered time range
-     * This is used in the progress bar to encapsulate all time ranges.
-     *
-     * @return {number}
-     *         The end of the last buffered time range
-     */
-    bufferedEnd() {
-      const buffered = this.buffered();
-      const duration = this.duration();
-      let end = buffered.end(buffered.length - 1);
-      if (end > duration) {
-        end = duration;
-      }
-      return end;
-    }
-
-    /**
-     * Get or set the current volume of the media
-     *
-     * @param  {number} [percentAsDecimal]
-     *         The new volume as a decimal percent:
-     *         - 0 is muted/0%/off
-     *         - 1.0 is 100%/full
-     *         - 0.5 is half volume or 50%
-     *
-     * @return {number|undefined}
-     *         The current volume as a percent when getting
-     */
-    volume(percentAsDecimal) {
-      let vol;
-      if (percentAsDecimal !== undefined) {
-        // Force value to between 0 and 1
-        vol = Math.max(0, Math.min(1, percentAsDecimal));
-        this.cache_.volume = vol;
-        this.techCall_('setVolume', vol);
-        if (vol > 0) {
-          this.lastVolume_(vol);
-        }
-        return;
-      }
-
-      // Default to 1 when returning current volume.
-      vol = parseFloat(this.techGet_('volume'));
-      return isNaN(vol) ? 1 : vol;
-    }
-
-    /**
-     * Get the current muted state, or turn mute on or off
-     *
-     * @param {boolean} [muted]
-     *        - true to mute
-     *        - false to unmute
-     *
-     * @return {boolean|undefined}
-     *         - true if mute is on and getting
-     *         - false if mute is off and getting
-     *         - nothing if setting
-     */
-    muted(muted) {
-      if (muted !== undefined) {
-        this.techCall_('setMuted', muted);
-        return;
-      }
-      return this.techGet_('muted') || false;
-    }
-
-    /**
-     * Get the current defaultMuted state, or turn defaultMuted on or off. defaultMuted
-     * indicates the state of muted on initial playback.
-     *
-     * ```js
-     *   var myPlayer = videojs('some-player-id');
-     *
-     *   myPlayer.src("http://www.example.com/path/to/video.mp4");
-     *
-     *   // get, should be false
-     *   console.log(myPlayer.defaultMuted());
-     *   // set to true
-     *   myPlayer.defaultMuted(true);
-     *   // get should be true
-     *   console.log(myPlayer.defaultMuted());
-     * ```
-     *
-     * @param {boolean} [defaultMuted]
-     *        - true to mute
-     *        - false to unmute
-     *
-     * @return {boolean|undefined}
-     *         - true if defaultMuted is on and getting
-     *         - false if defaultMuted is off and getting
-     *         - Nothing when setting
-     */
-    defaultMuted(defaultMuted) {
-      if (defaultMuted !== undefined) {
-        this.techCall_('setDefaultMuted', defaultMuted);
-      }
-      return this.techGet_('defaultMuted') || false;
-    }
-
-    /**
-     * Get the last volume, or set it
-     *
-     * @param  {number} [percentAsDecimal]
-     *         The new last volume as a decimal percent:
-     *         - 0 is muted/0%/off
-     *         - 1.0 is 100%/full
-     *         - 0.5 is half volume or 50%
-     *
-     * @return {number|undefined}
-     *         - The current value of lastVolume as a percent when getting
-     *         - Nothing when setting
-     *
-     * @private
-     */
-    lastVolume_(percentAsDecimal) {
-      if (percentAsDecimal !== undefined && percentAsDecimal !== 0) {
-        this.cache_.lastVolume = percentAsDecimal;
-        return;
-      }
-      return this.cache_.lastVolume;
-    }
-
-    /**
-     * Check if current tech can support native fullscreen
-     * (e.g. with built in controls like iOS)
-     *
-     * @return {boolean}
-     *         if native fullscreen is supported
-     */
-    supportsFullScreen() {
-      return this.techGet_('supportsFullScreen') || false;
-    }
-
-    /**
-     * Check if the player is in fullscreen mode or tell the player that it
-     * is or is not in fullscreen mode.
-     *
-     * > NOTE: As of the latest HTML5 spec, isFullscreen is no longer an official
-     * property and instead document.fullscreenElement is used. But isFullscreen is
-     * still a valuable property for internal player workings.
-     *
-     * @param  {boolean} [isFS]
-     *         Set the players current fullscreen state
-     *
-     * @return {boolean|undefined}
-     *         - true if fullscreen is on and getting
-     *         - false if fullscreen is off and getting
-     *         - Nothing when setting
-     */
-    isFullscreen(isFS) {
-      if (isFS !== undefined) {
-        const oldValue = this.isFullscreen_;
-        this.isFullscreen_ = Boolean(isFS);
-
-        // if we changed fullscreen state and we're in prefixed mode, trigger fullscreenchange
-        // this is the only place where we trigger fullscreenchange events for older browsers
-        // fullWindow mode is treated as a prefixed event and will get a fullscreenchange event as well
-        if (this.isFullscreen_ !== oldValue && this.fsApi_.prefixed) {
-          /**
-             * @event Player#fullscreenchange
-             * @type {Event}
-             */
-          this.trigger('fullscreenchange');
-        }
-        this.toggleFullscreenClass_();
-        return;
-      }
-      return this.isFullscreen_;
-    }
-
-    /**
-     * Increase the size of the video to full screen
-     * In some browsers, full screen is not supported natively, so it enters
-     * "full window mode", where the video fills the browser window.
-     * In browsers and devices that support native full screen, sometimes the
-     * browser's default controls will be shown, and not the Video.js custom skin.
-     * This includes most mobile devices (iOS, Android) and older versions of
-     * Safari.
-     *
-     * @param  {Object} [fullscreenOptions]
-     *         Override the player fullscreen options
-     *
-     * @fires Player#fullscreenchange
-     */
-    requestFullscreen(fullscreenOptions) {
-      if (this.isInPictureInPicture()) {
-        this.exitPictureInPicture();
-      }
-      const self = this;
-      return new Promise((resolve, reject) => {
-        function offHandler() {
-          self.off('fullscreenerror', errorHandler);
-          self.off('fullscreenchange', changeHandler);
-        }
-        function changeHandler() {
-          offHandler();
-          resolve();
-        }
-        function errorHandler(e, err) {
-          offHandler();
-          reject(err);
-        }
-        self.one('fullscreenchange', changeHandler);
-        self.one('fullscreenerror', errorHandler);
-        const promise = self.requestFullscreenHelper_(fullscreenOptions);
-        if (promise) {
-          promise.then(offHandler, offHandler);
-          promise.then(resolve, reject);
-        }
-      });
-    }
-    requestFullscreenHelper_(fullscreenOptions) {
-      let fsOptions;
-
-      // Only pass fullscreen options to requestFullscreen in spec-compliant browsers.
-      // Use defaults or player configured option unless passed directly to this method.
-      if (!this.fsApi_.prefixed) {
-        fsOptions = this.options_.fullscreen && this.options_.fullscreen.options || {};
-        if (fullscreenOptions !== undefined) {
-          fsOptions = fullscreenOptions;
-        }
-      }
-
-      // This method works as follows:
-      // 1. if a fullscreen api is available, use it
-      //   1. call requestFullscreen with potential options
-      //   2. if we got a promise from above, use it to update isFullscreen()
-      // 2. otherwise, if the tech supports fullscreen, call `enterFullScreen` on it.
-      //   This is particularly used for iPhone, older iPads, and non-safari browser on iOS.
-      // 3. otherwise, use "fullWindow" mode
-      if (this.fsApi_.requestFullscreen) {
-        const promise = this.el_[this.fsApi_.requestFullscreen](fsOptions);
-
-        // Even on browsers with promise support this may not return a promise
-        if (promise) {
-          promise.then(() => this.isFullscreen(true), () => this.isFullscreen(false));
-        }
-        return promise;
-      } else if (this.tech_.supportsFullScreen() && !this.options_.preferFullWindow === true) {
-        // we can't take the video.js controls fullscreen but we can go fullscreen
-        // with native controls
-        this.techCall_('enterFullScreen');
-      } else {
-        // fullscreen isn't supported so we'll just stretch the video element to
-        // fill the viewport
-        this.enterFullWindow();
-      }
-    }
-
-    /**
-     * Return the video to its normal size after having been in full screen mode
-     *
-     * @fires Player#fullscreenchange
-     */
-    exitFullscreen() {
-      const self = this;
-      return new Promise((resolve, reject) => {
-        function offHandler() {
-          self.off('fullscreenerror', errorHandler);
-          self.off('fullscreenchange', changeHandler);
-        }
-        function changeHandler() {
-          offHandler();
-          resolve();
-        }
-        function errorHandler(e, err) {
-          offHandler();
-          reject(err);
-        }
-        self.one('fullscreenchange', changeHandler);
-        self.one('fullscreenerror', errorHandler);
-        const promise = self.exitFullscreenHelper_();
-        if (promise) {
-          promise.then(offHandler, offHandler);
-          // map the promise to our resolve/reject methods
-          promise.then(resolve, reject);
-        }
-      });
-    }
-    exitFullscreenHelper_() {
-      if (this.fsApi_.requestFullscreen) {
-        const promise = document[this.fsApi_.exitFullscreen]();
-
-        // Even on browsers with promise support this may not return a promise
-        if (promise) {
-          // we're splitting the promise here, so, we want to catch the
-          // potential error so that this chain doesn't have unhandled errors
-          silencePromise(promise.then(() => this.isFullscreen(false)));
-        }
-        return promise;
-      } else if (this.tech_.supportsFullScreen() && !this.options_.preferFullWindow === true) {
-        this.techCall_('exitFullScreen');
-      } else {
-        this.exitFullWindow();
-      }
-    }
-
-    /**
-     * When fullscreen isn't supported we can stretch the
-     * video container to as wide as the browser will let us.
-     *
-     * @fires Player#enterFullWindow
-     */
-    enterFullWindow() {
-      this.isFullscreen(true);
-      this.isFullWindow = true;
-
-      // Storing original doc overflow value to return to when fullscreen is off
-      this.docOrigOverflow = document.documentElement.style.overflow;
-
-      // Add listener for esc key to exit fullscreen
-      on(document, 'keydown', this.boundFullWindowOnEscKey_);
-
-      // Hide any scroll bars
-      document.documentElement.style.overflow = 'hidden';
-
-      // Apply fullscreen styles
-      addClass(document.body, 'vjs-full-window');
-
-      /**
-       * @event Player#enterFullWindow
-       * @type {Event}
-       */
-      this.trigger('enterFullWindow');
-    }
-
-    /**
-     * Check for call to either exit full window or
-     * full screen on ESC key
-     *
-     * @param {string} event
-     *        Event to check for key press
-     */
-    fullWindowOnEscKey(event) {
-      if (keycode.isEventKey(event, 'Esc')) {
-        if (this.isFullscreen() === true) {
-          if (!this.isFullWindow) {
-            this.exitFullscreen();
-          } else {
-            this.exitFullWindow();
-          }
-        }
-      }
-    }
-
-    /**
-     * Exit full window
-     *
-     * @fires Player#exitFullWindow
-     */
-    exitFullWindow() {
-      this.isFullscreen(false);
-      this.isFullWindow = false;
-      off(document, 'keydown', this.boundFullWindowOnEscKey_);
-
-      // Unhide scroll bars.
-      document.documentElement.style.overflow = this.docOrigOverflow;
-
-      // Remove fullscreen styles
-      removeClass(document.body, 'vjs-full-window');
-
-      // Resize the box, controller, and poster to original sizes
-      // this.positionAll();
-      /**
-       * @event Player#exitFullWindow
-       * @type {Event}
-       */
-      this.trigger('exitFullWindow');
-    }
-
-    /**
-     * Get or set disable Picture-in-Picture mode.
-     *
-     * @param {boolean} [value]
-     *                  - true will disable Picture-in-Picture mode
-     *                  - false will enable Picture-in-Picture mode
-     */
-    disablePictureInPicture(value) {
-      if (value === undefined) {
-        return this.techGet_('disablePictureInPicture');
-      }
-      this.techCall_('setDisablePictureInPicture', value);
-      this.options_.disablePictureInPicture = value;
-      this.trigger('disablepictureinpicturechanged');
-    }
-
-    /**
-     * Check if the player is in Picture-in-Picture mode or tell the player that it
-     * is or is not in Picture-in-Picture mode.
-     *
-     * @param  {boolean} [isPiP]
-     *         Set the players current Picture-in-Picture state
-     *
-     * @return {boolean|undefined}
-     *         - true if Picture-in-Picture is on and getting
-     *         - false if Picture-in-Picture is off and getting
-     *         - nothing if setting
-     */
-    isInPictureInPicture(isPiP) {
-      if (isPiP !== undefined) {
-        this.isInPictureInPicture_ = !!isPiP;
-        this.togglePictureInPictureClass_();
-        return;
-      }
-      return !!this.isInPictureInPicture_;
-    }
-
-    /**
-     * Create a floating video window always on top of other windows so that users may
-     * continue consuming media while they interact with other content sites, or
-     * applications on their device.
-     *
-     * This can use document picture-in-picture or element picture in picture
-     *
-     * Set `enableDocumentPictureInPicture` to `true` to use docPiP on a supported browser
-     * Else set `disablePictureInPicture` to `false` to disable elPiP on a supported browser
-     *
-     *
-     * @see [Spec]{@link https://w3c.github.io/picture-in-picture/}
-     * @see [Spec]{@link https://wicg.github.io/document-picture-in-picture/}
-     *
-     * @fires Player#enterpictureinpicture
-     *
-     * @return {Promise}
-     *         A promise with a Picture-in-Picture window.
-     */
-    requestPictureInPicture() {
-      if (this.options_.enableDocumentPictureInPicture && window.documentPictureInPicture) {
-        const pipContainer = document.createElement(this.el().tagName);
-        pipContainer.classList = this.el().classList;
-        pipContainer.classList.add('vjs-pip-container');
-        if (this.posterImage) {
-          pipContainer.appendChild(this.posterImage.el().cloneNode(true));
-        }
-        if (this.titleBar) {
-          pipContainer.appendChild(this.titleBar.el().cloneNode(true));
-        }
-        pipContainer.appendChild(createEl('p', {
-          className: 'vjs-pip-text'
-        }, {}, this.localize('Playing in picture-in-picture')));
-        return window.documentPictureInPicture.requestWindow({
-          // The aspect ratio won't be correct, Chrome bug https://crbug.com/1407629
-          width: this.videoWidth(),
-          height: this.videoHeight()
-        }).then(pipWindow => {
-          copyStyleSheetsToWindow(pipWindow);
-          this.el_.parentNode.insertBefore(pipContainer, this.el_);
-          pipWindow.document.body.appendChild(this.el_);
-          pipWindow.document.body.classList.add('vjs-pip-window');
-          this.player_.isInPictureInPicture(true);
-          this.player_.trigger({
-            type: 'enterpictureinpicture',
-            pipWindow
-          });
-
-          // Listen for the PiP closing event to move the video back.
-          pipWindow.addEventListener('pagehide', event => {
-            const pipVideo = event.target.querySelector('.video-js');
-            pipContainer.parentNode.replaceChild(pipVideo, pipContainer);
-            this.player_.isInPictureInPicture(false);
-            this.player_.trigger('leavepictureinpicture');
-          });
-          return pipWindow;
-        });
-      }
-      if ('pictureInPictureEnabled' in document && this.disablePictureInPicture() === false) {
-        /**
-         * This event fires when the player enters picture in picture mode
-         *
-         * @event Player#enterpictureinpicture
-         * @type {Event}
-         */
-        return this.techGet_('requestPictureInPicture');
-      }
-      return Promise.reject('No PiP mode is available');
-    }
-
-    /**
-     * Exit Picture-in-Picture mode.
-     *
-     * @see [Spec]{@link https://wicg.github.io/picture-in-picture}
-     *
-     * @fires Player#leavepictureinpicture
-     *
-     * @return {Promise}
-     *         A promise.
-     */
-    exitPictureInPicture() {
-      if (window.documentPictureInPicture && window.documentPictureInPicture.window) {
-        // With documentPictureInPicture, Player#leavepictureinpicture is fired in the pagehide handler
-        window.documentPictureInPicture.window.close();
-        return Promise.resolve();
-      }
-      if ('pictureInPictureEnabled' in document) {
-        /**
-         * This event fires when the player leaves picture in picture mode
-         *
-         * @event Player#leavepictureinpicture
-         * @type {Event}
-         */
-        return document.exitPictureInPicture();
-      }
-    }
-
-    /**
-     * Called when this Player has focus and a key gets pressed down, or when
-     * any Component of this player receives a key press that it doesn't handle.
-     * This allows player-wide hotkeys (either as defined below, or optionally
-     * by an external function).
-     *
-     * @param {KeyboardEvent} event
-     *        The `keydown` event that caused this function to be called.
-     *
-     * @listens keydown
-     */
-    handleKeyDown(event) {
-      const {
-        userActions
-      } = this.options_;
-
-      // Bail out if hotkeys are not configured.
-      if (!userActions || !userActions.hotkeys) {
-        return;
-      }
-
-      // Function that determines whether or not to exclude an element from
-      // hotkeys handling.
-      const excludeElement = el => {
-        const tagName = el.tagName.toLowerCase();
-
-        // The first and easiest test is for `contenteditable` elements.
-        if (el.isContentEditable) {
-          return true;
-        }
-
-        // Inputs matching these types will still trigger hotkey handling as
-        // they are not text inputs.
-        const allowedInputTypes = ['button', 'checkbox', 'hidden', 'radio', 'reset', 'submit'];
-        if (tagName === 'input') {
-          return allowedInputTypes.indexOf(el.type) === -1;
-        }
-
-        // The final test is by tag name. These tags will be excluded entirely.
-        const excludedTags = ['textarea'];
-        return excludedTags.indexOf(tagName) !== -1;
-      };
-
-      // Bail out if the user is focused on an interactive form element.
-      if (excludeElement(this.el_.ownerDocument.activeElement)) {
-        return;
-      }
-      if (typeof userActions.hotkeys === 'function') {
-        userActions.hotkeys.call(this, event);
-      } else {
-        this.handleHotkeys(event);
-      }
-    }
-
-    /**
-     * Called when this Player receives a hotkey keydown event.
-     * Supported player-wide hotkeys are:
-     *
-     *   f          - toggle fullscreen
-     *   m          - toggle mute
-     *   k or Space - toggle play/pause
-     *
-     * @param {Event} event
-     *        The `keydown` event that caused this function to be called.
-     */
-    handleHotkeys(event) {
-      const hotkeys = this.options_.userActions ? this.options_.userActions.hotkeys : {};
-
-      // set fullscreenKey, muteKey, playPauseKey from `hotkeys`, use defaults if not set
-      const {
-        fullscreenKey = keydownEvent => keycode.isEventKey(keydownEvent, 'f'),
-        muteKey = keydownEvent => keycode.isEventKey(keydownEvent, 'm'),
-        playPauseKey = keydownEvent => keycode.isEventKey(keydownEvent, 'k') || keycode.isEventKey(keydownEvent, 'Space')
-      } = hotkeys;
-      if (fullscreenKey.call(this, event)) {
-        event.preventDefault();
-        event.stopPropagation();
-        const FSToggle = Component$1.getComponent('FullscreenToggle');
-        if (document[this.fsApi_.fullscreenEnabled] !== false) {
-          FSToggle.prototype.handleClick.call(this, event);
-        }
-      } else if (muteKey.call(this, event)) {
-        event.preventDefault();
-        event.stopPropagation();
-        const MuteToggle = Component$1.getComponent('MuteToggle');
-        MuteToggle.prototype.handleClick.call(this, event);
-      } else if (playPauseKey.call(this, event)) {
-        event.preventDefault();
-        event.stopPropagation();
-        const PlayToggle = Component$1.getComponent('PlayToggle');
-        PlayToggle.prototype.handleClick.call(this, event);
-      }
-    }
-
-    /**
-     * Check whether the player can play a given mimetype
-     *
-     * @see https://www.w3.org/TR/2011/WD-html5-20110113/video.html#dom-navigator-canplaytype
-     *
-     * @param {string} type
-     *        The mimetype to check
-     *
-     * @return {string}
-     *         'probably', 'maybe', or '' (empty string)
-     */
-    canPlayType(type) {
-      let can;
-
-      // Loop through each playback technology in the options order
-      for (let i = 0, j = this.options_.techOrder; i < j.length; i++) {
-        const techName = j[i];
-        let tech = Tech.getTech(techName);
-
-        // Support old behavior of techs being registered as components.
-        // Remove once that deprecated behavior is removed.
-        if (!tech) {
-          tech = Component$1.getComponent(techName);
-        }
-
-        // Check if the current tech is defined before continuing
-        if (!tech) {
-          log$1.error(`The "${techName}" tech is undefined. Skipped browser support check for that tech.`);
-          continue;
-        }
-
-        // Check if the browser supports this technology
-        if (tech.isSupported()) {
-          can = tech.canPlayType(type);
-          if (can) {
-            return can;
-          }
-        }
-      }
-      return '';
-    }
-
-    /**
-     * Select source based on tech-order or source-order
-     * Uses source-order selection if `options.sourceOrder` is truthy. Otherwise,
-     * defaults to tech-order selection
-     *
-     * @param {Array} sources
-     *        The sources for a media asset
-     *
-     * @return {Object|boolean}
-     *         Object of source and tech order or false
-     */
-    selectSource(sources) {
-      // Get only the techs specified in `techOrder` that exist and are supported by the
-      // current platform
-      const techs = this.options_.techOrder.map(techName => {
-        return [techName, Tech.getTech(techName)];
-      }).filter(([techName, tech]) => {
-        // Check if the current tech is defined before continuing
-        if (tech) {
-          // Check if the browser supports this technology
-          return tech.isSupported();
-        }
-        log$1.error(`The "${techName}" tech is undefined. Skipped browser support check for that tech.`);
-        return false;
-      });
-
-      // Iterate over each `innerArray` element once per `outerArray` element and execute
-      // `tester` with both. If `tester` returns a non-falsy value, exit early and return
-      // that value.
-      const findFirstPassingTechSourcePair = function (outerArray, innerArray, tester) {
-        let found;
-        outerArray.some(outerChoice => {
-          return innerArray.some(innerChoice => {
-            found = tester(outerChoice, innerChoice);
-            if (found) {
-              return true;
-            }
-          });
-        });
-        return found;
-      };
-      let foundSourceAndTech;
-      const flip = fn => (a, b) => fn(b, a);
-      const finder = ([techName, tech], source) => {
-        if (tech.canPlaySource(source, this.options_[techName.toLowerCase()])) {
-          return {
-            source,
-            tech: techName
-          };
-        }
-      };
-
-      // Depending on the truthiness of `options.sourceOrder`, we swap the order of techs and sources
-      // to select from them based on their priority.
-      if (this.options_.sourceOrder) {
-        // Source-first ordering
-        foundSourceAndTech = findFirstPassingTechSourcePair(sources, techs, flip(finder));
-      } else {
-        // Tech-first ordering
-        foundSourceAndTech = findFirstPassingTechSourcePair(techs, sources, finder);
-      }
-      return foundSourceAndTech || false;
-    }
-
-    /**
-     * Executes source setting and getting logic
-     *
-     * @param {Tech~SourceObject|Tech~SourceObject[]|string} [source]
-     *        A SourceObject, an array of SourceObjects, or a string referencing
-     *        a URL to a media source. It is _highly recommended_ that an object
-     *        or array of objects is used here, so that source selection
-     *        algorithms can take the `type` into account.
-     *
-     *        If not provided, this method acts as a getter.
-     * @param {boolean} [isRetry]
-     *        Indicates whether this is being called internally as a result of a retry
-     *
-     * @return {string|undefined}
-     *         If the `source` argument is missing, returns the current source
-     *         URL. Otherwise, returns nothing/undefined.
-     */
-    handleSrc_(source, isRetry) {
-      // getter usage
-      if (typeof source === 'undefined') {
-        return this.cache_.src || '';
-      }
-
-      // Reset retry behavior for new source
-      if (this.resetRetryOnError_) {
-        this.resetRetryOnError_();
-      }
-
-      // filter out invalid sources and turn our source into
-      // an array of source objects
-      const sources = filterSource(source);
-
-      // if a source was passed in then it is invalid because
-      // it was filtered to a zero length Array. So we have to
-      // show an error
-      if (!sources.length) {
-        this.setTimeout(function () {
-          this.error({
-            code: 4,
-            message: this.options_.notSupportedMessage
-          });
-        }, 0);
-        return;
-      }
-
-      // initial sources
-      this.changingSrc_ = true;
-
-      // Only update the cached source list if we are not retrying a new source after error,
-      // since in that case we want to include the failed source(s) in the cache
-      if (!isRetry) {
-        this.cache_.sources = sources;
-      }
-      this.updateSourceCaches_(sources[0]);
-
-      // middlewareSource is the source after it has been changed by middleware
-      setSource(this, sources[0], (middlewareSource, mws) => {
-        this.middleware_ = mws;
-
-        // since sourceSet is async we have to update the cache again after we select a source since
-        // the source that is selected could be out of order from the cache update above this callback.
-        if (!isRetry) {
-          this.cache_.sources = sources;
-        }
-        this.updateSourceCaches_(middlewareSource);
-        const err = this.src_(middlewareSource);
-        if (err) {
-          if (sources.length > 1) {
-            return this.handleSrc_(sources.slice(1));
-          }
-          this.changingSrc_ = false;
-
-          // We need to wrap this in a timeout to give folks a chance to add error event handlers
-          this.setTimeout(function () {
-            this.error({
-              code: 4,
-              message: this.options_.notSupportedMessage
-            });
-          }, 0);
-
-          // we could not find an appropriate tech, but let's still notify the delegate that this is it
-          // this needs a better comment about why this is needed
-          this.triggerReady();
-          return;
-        }
-        setTech(mws, this.tech_);
-      });
-
-      // Try another available source if this one fails before playback.
-      if (sources.length > 1) {
-        const retry = () => {
-          // Remove the error modal
-          this.error(null);
-          this.handleSrc_(sources.slice(1), true);
-        };
-        const stopListeningForErrors = () => {
-          this.off('error', retry);
-        };
-        this.one('error', retry);
-        this.one('playing', stopListeningForErrors);
-        this.resetRetryOnError_ = () => {
-          this.off('error', retry);
-          this.off('playing', stopListeningForErrors);
-        };
-      }
-    }
-
-    /**
-     * Get or set the video source.
-     *
-     * @param {Tech~SourceObject|Tech~SourceObject[]|string} [source]
-     *        A SourceObject, an array of SourceObjects, or a string referencing
-     *        a URL to a media source. It is _highly recommended_ that an object
-     *        or array of objects is used here, so that source selection
-     *        algorithms can take the `type` into account.
-     *
-     *        If not provided, this method acts as a getter.
-     *
-     * @return {string|undefined}
-     *         If the `source` argument is missing, returns the current source
-     *         URL. Otherwise, returns nothing/undefined.
-     */
-    src(source) {
-      return this.handleSrc_(source, false);
-    }
-
-    /**
-     * Set the source object on the tech, returns a boolean that indicates whether
-     * there is a tech that can play the source or not
-     *
-     * @param {Tech~SourceObject} source
-     *        The source object to set on the Tech
-     *
-     * @return {boolean}
-     *         - True if there is no Tech to playback this source
-     *         - False otherwise
-     *
-     * @private
-     */
-    src_(source) {
-      const sourceTech = this.selectSource([source]);
-      if (!sourceTech) {
-        return true;
-      }
-      if (!titleCaseEquals(sourceTech.tech, this.techName_)) {
-        this.changingSrc_ = true;
-        // load this technology with the chosen source
-        this.loadTech_(sourceTech.tech, sourceTech.source);
-        this.tech_.ready(() => {
-          this.changingSrc_ = false;
-        });
-        return false;
-      }
-
-      // wait until the tech is ready to set the source
-      // and set it synchronously if possible (#2326)
-      this.ready(function () {
-        // The setSource tech method was added with source handlers
-        // so older techs won't support it
-        // We need to check the direct prototype for the case where subclasses
-        // of the tech do not support source handlers
-        if (this.tech_.constructor.prototype.hasOwnProperty('setSource')) {
-          this.techCall_('setSource', source);
-        } else {
-          this.techCall_('src', source.src);
-        }
-        this.changingSrc_ = false;
-      }, true);
-      return false;
-    }
-
-    /**
-     * Begin loading the src data.
-     */
-    load() {
-      // Workaround to use the load method with the VHS.
-      // Does not cover the case when the load method is called directly from the mediaElement.
-      if (this.tech_ && this.tech_.vhs) {
-        this.src(this.currentSource());
-        return;
-      }
-      this.techCall_('load');
-    }
-
-    /**
-     * Reset the player. Loads the first tech in the techOrder,
-     * removes all the text tracks in the existing `tech`,
-     * and calls `reset` on the `tech`.
-     */
-    reset() {
-      if (this.paused()) {
-        this.doReset_();
-      } else {
-        const playPromise = this.play();
-        silencePromise(playPromise.then(() => this.doReset_()));
-      }
-    }
-    doReset_() {
-      if (this.tech_) {
-        this.tech_.clearTracks('text');
-      }
-      this.removeClass('vjs-playing');
-      this.addClass('vjs-paused');
-      this.resetCache_();
-      this.poster('');
-      this.loadTech_(this.options_.techOrder[0], null);
-      this.techCall_('reset');
-      this.resetControlBarUI_();
-      this.error(null);
-      if (this.titleBar) {
-        this.titleBar.update({
-          title: undefined,
-          description: undefined
-        });
-      }
-      if (isEvented(this)) {
-        this.trigger('playerreset');
-      }
-    }
-
-    /**
-     * Reset Control Bar's UI by calling sub-methods that reset
-     * all of Control Bar's components
-     */
-    resetControlBarUI_() {
-      this.resetProgressBar_();
-      this.resetPlaybackRate_();
-      this.resetVolumeBar_();
-    }
-
-    /**
-     * Reset tech's progress so progress bar is reset in the UI
-     */
-    resetProgressBar_() {
-      this.currentTime(0);
-      const {
-        currentTimeDisplay,
-        durationDisplay,
-        progressControl,
-        remainingTimeDisplay
-      } = this.controlBar || {};
-      const {
-        seekBar
-      } = progressControl || {};
-      if (currentTimeDisplay) {
-        currentTimeDisplay.updateContent();
-      }
-      if (durationDisplay) {
-        durationDisplay.updateContent();
-      }
-      if (remainingTimeDisplay) {
-        remainingTimeDisplay.updateContent();
-      }
-      if (seekBar) {
-        seekBar.update();
-        if (seekBar.loadProgressBar) {
-          seekBar.loadProgressBar.update();
-        }
-      }
-    }
-
-    /**
-     * Reset Playback ratio
-     */
-    resetPlaybackRate_() {
-      this.playbackRate(this.defaultPlaybackRate());
-      this.handleTechRateChange_();
-    }
-
-    /**
-     * Reset Volume bar
-     */
-    resetVolumeBar_() {
-      this.volume(1.0);
-      this.trigger('volumechange');
-    }
-
-    /**
-     * Returns all of the current source objects.
-     *
-     * @return {Tech~SourceObject[]}
-     *         The current source objects
-     */
-    currentSources() {
-      const source = this.currentSource();
-      const sources = [];
-
-      // assume `{}` or `{ src }`
-      if (Object.keys(source).length !== 0) {
-        sources.push(source);
-      }
-      return this.cache_.sources || sources;
-    }
-
-    /**
-     * Returns the current source object.
-     *
-     * @return {Tech~SourceObject}
-     *         The current source object
-     */
-    currentSource() {
-      return this.cache_.source || {};
-    }
-
-    /**
-     * Returns the fully qualified URL of the current source value e.g. http://mysite.com/video.mp4
-     * Can be used in conjunction with `currentType` to assist in rebuilding the current source object.
-     *
-     * @return {string}
-     *         The current source
-     */
-    currentSrc() {
-      return this.currentSource() && this.currentSource().src || '';
-    }
-
-    /**
-     * Get the current source type e.g. video/mp4
-     * This can allow you rebuild the current source object so that you could load the same
-     * source and tech later
-     *
-     * @return {string}
-     *         The source MIME type
-     */
-    currentType() {
-      return this.currentSource() && this.currentSource().type || '';
-    }
-
-    /**
-     * Get or set the preload attribute
-     *
-     * @param {'none'|'auto'|'metadata'} [value]
-     *        Preload mode to pass to tech
-     *
-     * @return {string|undefined}
-     *         - The preload attribute value when getting
-     *         - Nothing when setting
-     */
-    preload(value) {
-      if (value !== undefined) {
-        this.techCall_('setPreload', value);
-        this.options_.preload = value;
-        return;
-      }
-      return this.techGet_('preload');
-    }
-
-    /**
-     * Get or set the autoplay option. When this is a boolean it will
-     * modify the attribute on the tech. When this is a string the attribute on
-     * the tech will be removed and `Player` will handle autoplay on loadstarts.
-     *
-     * @param {boolean|'play'|'muted'|'any'} [value]
-     *        - true: autoplay using the browser behavior
-     *        - false: do not autoplay
-     *        - 'play': call play() on every loadstart
-     *        - 'muted': call muted() then play() on every loadstart
-     *        - 'any': call play() on every loadstart. if that fails call muted() then play().
-     *        - *: values other than those listed here will be set `autoplay` to true
-     *
-     * @return {boolean|string|undefined}
-     *         - The current value of autoplay when getting
-     *         - Nothing when setting
-     */
-    autoplay(value) {
-      // getter usage
-      if (value === undefined) {
-        return this.options_.autoplay || false;
-      }
-      let techAutoplay;
-
-      // if the value is a valid string set it to that, or normalize `true` to 'play', if need be
-      if (typeof value === 'string' && /(any|play|muted)/.test(value) || value === true && this.options_.normalizeAutoplay) {
-        this.options_.autoplay = value;
-        this.manualAutoplay_(typeof value === 'string' ? value : 'play');
-        techAutoplay = false;
-
-        // any falsy value sets autoplay to false in the browser,
-        // lets do the same
-      } else if (!value) {
-        this.options_.autoplay = false;
-
-        // any other value (ie truthy) sets autoplay to true
-      } else {
-        this.options_.autoplay = true;
-      }
-      techAutoplay = typeof techAutoplay === 'undefined' ? this.options_.autoplay : techAutoplay;
-
-      // if we don't have a tech then we do not queue up
-      // a setAutoplay call on tech ready. We do this because the
-      // autoplay option will be passed in the constructor and we
-      // do not need to set it twice
-      if (this.tech_) {
-        this.techCall_('setAutoplay', techAutoplay);
-      }
-    }
-
-    /**
-     * Set or unset the playsinline attribute.
-     * Playsinline tells the browser that non-fullscreen playback is preferred.
-     *
-     * @param {boolean} [value]
-     *        - true means that we should try to play inline by default
-     *        - false means that we should use the browser's default playback mode,
-     *          which in most cases is inline. iOS Safari is a notable exception
-     *          and plays fullscreen by default.
-     *
-     * @return {string|undefined}
-     *         - the current value of playsinline
-     *         - Nothing when setting
-     *
-     * @see [Spec]{@link https://html.spec.whatwg.org/#attr-video-playsinline}
-     */
-    playsinline(value) {
-      if (value !== undefined) {
-        this.techCall_('setPlaysinline', value);
-        this.options_.playsinline = value;
-      }
-      return this.techGet_('playsinline');
-    }
-
-    /**
-     * Get or set the loop attribute on the video element.
-     *
-     * @param {boolean} [value]
-     *        - true means that we should loop the video
-     *        - false means that we should not loop the video
-     *
-     * @return {boolean|undefined}
-     *         - The current value of loop when getting
-     *         - Nothing when setting
-     */
-    loop(value) {
-      if (value !== undefined) {
-        this.techCall_('setLoop', value);
-        this.options_.loop = value;
-        return;
-      }
-      return this.techGet_('loop');
-    }
-
-    /**
-     * Get or set the poster image source url
-     *
-     * @fires Player#posterchange
-     *
-     * @param {string} [src]
-     *        Poster image source URL
-     *
-     * @return {string|undefined}
-     *         - The current value of poster when getting
-     *         - Nothing when setting
-     */
-    poster(src) {
-      if (src === undefined) {
-        return this.poster_;
-      }
-
-      // The correct way to remove a poster is to set as an empty string
-      // other falsey values will throw errors
-      if (!src) {
-        src = '';
-      }
-      if (src === this.poster_) {
-        return;
-      }
-
-      // update the internal poster variable
-      this.poster_ = src;
-
-      // update the tech's poster
-      this.techCall_('setPoster', src);
-      this.isPosterFromTech_ = false;
-
-      // alert components that the poster has been set
-      /**
-       * This event fires when the poster image is changed on the player.
-       *
-       * @event Player#posterchange
-       * @type {Event}
-       */
-      this.trigger('posterchange');
-    }
-
-    /**
-     * Some techs (e.g. YouTube) can provide a poster source in an
-     * asynchronous way. We want the poster component to use this
-     * poster source so that it covers up the tech's controls.
-     * (YouTube's play button). However we only want to use this
-     * source if the player user hasn't set a poster through
-     * the normal APIs.
-     *
-     * @fires Player#posterchange
-     * @listens Tech#posterchange
-     * @private
-     */
-    handleTechPosterChange_() {
-      if ((!this.poster_ || this.options_.techCanOverridePoster) && this.tech_ && this.tech_.poster) {
-        const newPoster = this.tech_.poster() || '';
-        if (newPoster !== this.poster_) {
-          this.poster_ = newPoster;
-          this.isPosterFromTech_ = true;
-
-          // Let components know the poster has changed
-          this.trigger('posterchange');
-        }
-      }
-    }
-
-    /**
-     * Get or set whether or not the controls are showing.
-     *
-     * @fires Player#controlsenabled
-     *
-     * @param {boolean} [bool]
-     *        - true to turn controls on
-     *        - false to turn controls off
-     *
-     * @return {boolean|undefined}
-     *         - The current value of controls when getting
-     *         - Nothing when setting
-     */
-    controls(bool) {
-      if (bool === undefined) {
-        return !!this.controls_;
-      }
-      bool = !!bool;
-
-      // Don't trigger a change event unless it actually changed
-      if (this.controls_ === bool) {
-        return;
-      }
-      this.controls_ = bool;
-      if (this.usingNativeControls()) {
-        this.techCall_('setControls', bool);
-      }
-      if (this.controls_) {
-        this.removeClass('vjs-controls-disabled');
-        this.addClass('vjs-controls-enabled');
-        /**
-         * @event Player#controlsenabled
-         * @type {Event}
-         */
-        this.trigger('controlsenabled');
-        if (!this.usingNativeControls()) {
-          this.addTechControlsListeners_();
-        }
-      } else {
-        this.removeClass('vjs-controls-enabled');
-        this.addClass('vjs-controls-disabled');
-        /**
-         * @event Player#controlsdisabled
-         * @type {Event}
-         */
-        this.trigger('controlsdisabled');
-        if (!this.usingNativeControls()) {
-          this.removeTechControlsListeners_();
-        }
-      }
-    }
-
-    /**
-     * Toggle native controls on/off. Native controls are the controls built into
-     * devices (e.g. default iPhone controls) or other techs
-     * (e.g. Vimeo Controls)
-     * **This should only be set by the current tech, because only the tech knows
-     * if it can support native controls**
-     *
-     * @fires Player#usingnativecontrols
-     * @fires Player#usingcustomcontrols
-     *
-     * @param {boolean} [bool]
-     *        - true to turn native controls on
-     *        - false to turn native controls off
-     *
-     * @return {boolean|undefined}
-     *         - The current value of native controls when getting
-     *         - Nothing when setting
-     */
-    usingNativeControls(bool) {
-      if (bool === undefined) {
-        return !!this.usingNativeControls_;
-      }
-      bool = !!bool;
-
-      // Don't trigger a change event unless it actually changed
-      if (this.usingNativeControls_ === bool) {
-        return;
-      }
-      this.usingNativeControls_ = bool;
-      if (this.usingNativeControls_) {
-        this.addClass('vjs-using-native-controls');
-
-        /**
-         * player is using the native device controls
-         *
-         * @event Player#usingnativecontrols
-         * @type {Event}
-         */
-        this.trigger('usingnativecontrols');
-      } else {
-        this.removeClass('vjs-using-native-controls');
-
-        /**
-         * player is using the custom HTML controls
-         *
-         * @event Player#usingcustomcontrols
-         * @type {Event}
-         */
-        this.trigger('usingcustomcontrols');
-      }
-    }
-
-    /**
-     * Set or get the current MediaError
-     *
-     * @fires Player#error
-     *
-     * @param  {MediaError|string|number} [err]
-     *         A MediaError or a string/number to be turned
-     *         into a MediaError
-     *
-     * @return {MediaError|null|undefined}
-     *         - The current MediaError when getting (or null)
-     *         - Nothing when setting
-     */
-    error(err) {
-      if (err === undefined) {
-        return this.error_ || null;
-      }
-
-      // allow hooks to modify error object
-      hooks('beforeerror').forEach(hookFunction => {
-        const newErr = hookFunction(this, err);
-        if (!(isObject$1(newErr) && !Array.isArray(newErr) || typeof newErr === 'string' || typeof newErr === 'number' || newErr === null)) {
-          this.log.error('please return a value that MediaError expects in beforeerror hooks');
-          return;
-        }
-        err = newErr;
-      });
-
-      // Suppress the first error message for no compatible source until
-      // user interaction
-      if (this.options_.suppressNotSupportedError && err && err.code === 4) {
-        const triggerSuppressedError = function () {
-          this.error(err);
-        };
-        this.options_.suppressNotSupportedError = false;
-        this.any(['click', 'touchstart'], triggerSuppressedError);
-        this.one('loadstart', function () {
-          this.off(['click', 'touchstart'], triggerSuppressedError);
-        });
-        return;
-      }
-
-      // restoring to default
-      if (err === null) {
-        this.error_ = null;
-        this.removeClass('vjs-error');
-        if (this.errorDisplay) {
-          this.errorDisplay.close();
-        }
-        return;
-      }
-      this.error_ = new MediaError(err);
-
-      // add the vjs-error classname to the player
-      this.addClass('vjs-error');
-
-      // log the name of the error type and any message
-      // IE11 logs "[object object]" and required you to expand message to see error object
-      log$1.error(`(CODE:${this.error_.code} ${MediaError.errorTypes[this.error_.code]})`, this.error_.message, this.error_);
-
-      /**
-       * @event Player#error
-       * @type {Event}
-       */
-      this.trigger('error');
-
-      // notify hooks of the per player error
-      hooks('error').forEach(hookFunction => hookFunction(this, this.error_));
-      return;
-    }
-
-    /**
-     * Report user activity
-     *
-     * @param {Object} event
-     *        Event object
-     */
-    reportUserActivity(event) {
-      this.userActivity_ = true;
-    }
-
-    /**
-     * Get/set if user is active
-     *
-     * @fires Player#useractive
-     * @fires Player#userinactive
-     *
-     * @param {boolean} [bool]
-     *        - true if the user is active
-     *        - false if the user is inactive
-     *
-     * @return {boolean|undefined}
-     *         - The current value of userActive when getting
-     *         - Nothing when setting
-     */
-    userActive(bool) {
-      if (bool === undefined) {
-        return this.userActive_;
-      }
-      bool = !!bool;
-      if (bool === this.userActive_) {
-        return;
-      }
-      this.userActive_ = bool;
-      if (this.userActive_) {
-        this.userActivity_ = true;
-        this.removeClass('vjs-user-inactive');
-        this.addClass('vjs-user-active');
-        /**
-         * @event Player#useractive
-         * @type {Event}
-         */
-        this.trigger('useractive');
-        return;
-      }
-
-      // Chrome/Safari/IE have bugs where when you change the cursor it can
-      // trigger a mousemove event. This causes an issue when you're hiding
-      // the cursor when the user is inactive, and a mousemove signals user
-      // activity. Making it impossible to go into inactive mode. Specifically
-      // this happens in fullscreen when we really need to hide the cursor.
-      //
-      // When this gets resolved in ALL browsers it can be removed
-      // https://code.google.com/p/chromium/issues/detail?id=103041
-      if (this.tech_) {
-        this.tech_.one('mousemove', function (e) {
-          e.stopPropagation();
-          e.preventDefault();
-        });
-      }
-      this.userActivity_ = false;
-      this.removeClass('vjs-user-active');
-      this.addClass('vjs-user-inactive');
-      /**
-       * @event Player#userinactive
-       * @type {Event}
-       */
-      this.trigger('userinactive');
-    }
-
-    /**
-     * Listen for user activity based on timeout value
-     *
-     * @private
-     */
-    listenForUserActivity_() {
-      let mouseInProgress;
-      let lastMoveX;
-      let lastMoveY;
-      const handleActivity = bind_(this, this.reportUserActivity);
-      const handleMouseMove = function (e) {
-        // #1068 - Prevent mousemove spamming
-        // Chrome Bug: https://code.google.com/p/chromium/issues/detail?id=366970
-        if (e.screenX !== lastMoveX || e.screenY !== lastMoveY) {
-          lastMoveX = e.screenX;
-          lastMoveY = e.screenY;
-          handleActivity();
-        }
-      };
-      const handleMouseDown = function () {
-        handleActivity();
-        // For as long as the they are touching the device or have their mouse down,
-        // we consider them active even if they're not moving their finger or mouse.
-        // So we want to continue to update that they are active
-        this.clearInterval(mouseInProgress);
-        // Setting userActivity=true now and setting the interval to the same time
-        // as the activityCheck interval (250) should ensure we never miss the
-        // next activityCheck
-        mouseInProgress = this.setInterval(handleActivity, 250);
-      };
-      const handleMouseUpAndMouseLeave = function (event) {
-        handleActivity();
-        // Stop the interval that maintains activity if the mouse/touch is down
-        this.clearInterval(mouseInProgress);
-      };
-
-      // Any mouse movement will be considered user activity
-      this.on('mousedown', handleMouseDown);
-      this.on('mousemove', handleMouseMove);
-      this.on('mouseup', handleMouseUpAndMouseLeave);
-      this.on('mouseleave', handleMouseUpAndMouseLeave);
-      const controlBar = this.getChild('controlBar');
-
-      // Fixes bug on Android & iOS where when tapping progressBar (when control bar is displayed)
-      // controlBar would no longer be hidden by default timeout.
-      if (controlBar && !IS_IOS && !IS_ANDROID) {
-        controlBar.on('mouseenter', function (event) {
-          if (this.player().options_.inactivityTimeout !== 0) {
-            this.player().cache_.inactivityTimeout = this.player().options_.inactivityTimeout;
-          }
-          this.player().options_.inactivityTimeout = 0;
-        });
-        controlBar.on('mouseleave', function (event) {
-          this.player().options_.inactivityTimeout = this.player().cache_.inactivityTimeout;
-        });
-      }
-
-      // Listen for keyboard navigation
-      // Shouldn't need to use inProgress interval because of key repeat
-      this.on('keydown', handleActivity);
-      this.on('keyup', handleActivity);
-
-      // Run an interval every 250 milliseconds instead of stuffing everything into
-      // the mousemove/touchmove function itself, to prevent performance degradation.
-      // `this.reportUserActivity` simply sets this.userActivity_ to true, which
-      // then gets picked up by this loop
-      // http://ejohn.org/blog/learning-from-twitter/
-      let inactivityTimeout;
-
-      /** @this Player */
-      const activityCheck = function () {
-        // Check to see if mouse/touch activity has happened
-        if (!this.userActivity_) {
-          return;
-        }
-
-        // Reset the activity tracker
-        this.userActivity_ = false;
-
-        // If the user state was inactive, set the state to active
-        this.userActive(true);
-
-        // Clear any existing inactivity timeout to start the timer over
-        this.clearTimeout(inactivityTimeout);
-        const timeout = this.options_.inactivityTimeout;
-        if (timeout <= 0) {
-          return;
-        }
-
-        // In <timeout> milliseconds, if no more activity has occurred the
-        // user will be considered inactive
-        inactivityTimeout = this.setTimeout(function () {
-          // Protect against the case where the inactivityTimeout can trigger just
-          // before the next user activity is picked up by the activity check loop
-          // causing a flicker
-          if (!this.userActivity_) {
-            this.userActive(false);
-          }
-        }, timeout);
-      };
-      this.setInterval(activityCheck, 250);
-    }
-
-    /**
-     * Gets or sets the current playback rate. A playback rate of
-     * 1.0 represents normal speed and 0.5 would indicate half-speed
-     * playback, for instance.
-     *
-     * @see https://html.spec.whatwg.org/multipage/embedded-content.html#dom-media-playbackrate
-     *
-     * @param {number} [rate]
-     *       New playback rate to set.
-     *
-     * @return {number|undefined}
-     *         - The current playback rate when getting or 1.0
-     *         - Nothing when setting
-     */
-    playbackRate(rate) {
-      if (rate !== undefined) {
-        // NOTE: this.cache_.lastPlaybackRate is set from the tech handler
-        // that is registered above
-        this.techCall_('setPlaybackRate', rate);
-        return;
-      }
-      if (this.tech_ && this.tech_.featuresPlaybackRate) {
-        return this.cache_.lastPlaybackRate || this.techGet_('playbackRate');
-      }
-      return 1.0;
-    }
-
-    /**
-     * Gets or sets the current default playback rate. A default playback rate of
-     * 1.0 represents normal speed and 0.5 would indicate half-speed playback, for instance.
-     * defaultPlaybackRate will only represent what the initial playbackRate of a video was, not
-     * not the current playbackRate.
-     *
-     * @see https://html.spec.whatwg.org/multipage/embedded-content.html#dom-media-defaultplaybackrate
-     *
-     * @param {number} [rate]
-     *       New default playback rate to set.
-     *
-     * @return {number|undefined}
-     *         - The default playback rate when getting or 1.0
-     *         - Nothing when setting
-     */
-    defaultPlaybackRate(rate) {
-      if (rate !== undefined) {
-        return this.techCall_('setDefaultPlaybackRate', rate);
-      }
-      if (this.tech_ && this.tech_.featuresPlaybackRate) {
-        return this.techGet_('defaultPlaybackRate');
-      }
-      return 1.0;
-    }
-
-    /**
-     * Gets or sets the audio flag
-     *
-     * @param {boolean} [bool]
-     *        - true signals that this is an audio player
-     *        - false signals that this is not an audio player
-     *
-     * @return {boolean|undefined}
-     *         - The current value of isAudio when getting
-     *         - Nothing when setting
-     */
-    isAudio(bool) {
-      if (bool !== undefined) {
-        this.isAudio_ = !!bool;
-        return;
-      }
-      return !!this.isAudio_;
-    }
-    enableAudioOnlyUI_() {
-      // Update styling immediately to show the control bar so we can get its height
-      this.addClass('vjs-audio-only-mode');
-      const playerChildren = this.children();
-      const controlBar = this.getChild('ControlBar');
-      const controlBarHeight = controlBar && controlBar.currentHeight();
-
-      // Hide all player components except the control bar. Control bar components
-      // needed only for video are hidden with CSS
-      playerChildren.forEach(child => {
-        if (child === controlBar) {
-          return;
-        }
-        if (child.el_ && !child.hasClass('vjs-hidden')) {
-          child.hide();
-          this.audioOnlyCache_.hiddenChildren.push(child);
-        }
-      });
-      this.audioOnlyCache_.playerHeight = this.currentHeight();
-
-      // Set the player height the same as the control bar
-      this.height(controlBarHeight);
-      this.trigger('audioonlymodechange');
-    }
-    disableAudioOnlyUI_() {
-      this.removeClass('vjs-audio-only-mode');
-
-      // Show player components that were previously hidden
-      this.audioOnlyCache_.hiddenChildren.forEach(child => child.show());
-
-      // Reset player height
-      this.height(this.audioOnlyCache_.playerHeight);
-      this.trigger('audioonlymodechange');
-    }
-
-    /**
-     * Get the current audioOnlyMode state or set audioOnlyMode to true or false.
-     *
-     * Setting this to `true` will hide all player components except the control bar,
-     * as well as control bar components needed only for video.
-     *
-     * @param {boolean} [value]
-     *         The value to set audioOnlyMode to.
-     *
-     * @return {Promise|boolean}
-     *        A Promise is returned when setting the state, and a boolean when getting
-     *        the present state
-     */
-    audioOnlyMode(value) {
-      if (typeof value !== 'boolean' || value === this.audioOnlyMode_) {
-        return this.audioOnlyMode_;
-      }
-      this.audioOnlyMode_ = value;
-
-      // Enable Audio Only Mode
-      if (value) {
-        const exitPromises = [];
-
-        // Fullscreen and PiP are not supported in audioOnlyMode, so exit if we need to.
-        if (this.isInPictureInPicture()) {
-          exitPromises.push(this.exitPictureInPicture());
-        }
-        if (this.isFullscreen()) {
-          exitPromises.push(this.exitFullscreen());
-        }
-        if (this.audioPosterMode()) {
-          exitPromises.push(this.audioPosterMode(false));
-        }
-        return Promise.all(exitPromises).then(() => this.enableAudioOnlyUI_());
-      }
-
-      // Disable Audio Only Mode
-      return Promise.resolve().then(() => this.disableAudioOnlyUI_());
-    }
-    enablePosterModeUI_() {
-      // Hide the video element and show the poster image to enable posterModeUI
-      const tech = this.tech_ && this.tech_;
-      tech.hide();
-      this.addClass('vjs-audio-poster-mode');
-      this.trigger('audiopostermodechange');
-    }
-    disablePosterModeUI_() {
-      // Show the video element and hide the poster image to disable posterModeUI
-      const tech = this.tech_ && this.tech_;
-      tech.show();
-      this.removeClass('vjs-audio-poster-mode');
-      this.trigger('audiopostermodechange');
-    }
-
-    /**
-     * Get the current audioPosterMode state or set audioPosterMode to true or false
-     *
-     * @param {boolean} [value]
-     *         The value to set audioPosterMode to.
-     *
-     * @return {Promise|boolean}
-     *         A Promise is returned when setting the state, and a boolean when getting
-     *        the present state
-     */
-    audioPosterMode(value) {
-      if (typeof value !== 'boolean' || value === this.audioPosterMode_) {
-        return this.audioPosterMode_;
-      }
-      this.audioPosterMode_ = value;
-      if (value) {
-        if (this.audioOnlyMode()) {
-          const audioOnlyModePromise = this.audioOnlyMode(false);
-          return audioOnlyModePromise.then(() => {
-            // enable audio poster mode after audio only mode is disabled
-            this.enablePosterModeUI_();
-          });
-        }
-        return Promise.resolve().then(() => {
-          // enable audio poster mode
-          this.enablePosterModeUI_();
-        });
-      }
-      return Promise.resolve().then(() => {
-        // disable audio poster mode
-        this.disablePosterModeUI_();
-      });
-    }
-
-    /**
-     * A helper method for adding a {@link TextTrack} to our
-     * {@link TextTrackList}.
-     *
-     * In addition to the W3C settings we allow adding additional info through options.
-     *
-     * @see http://www.w3.org/html/wg/drafts/html/master/embedded-content-0.html#dom-media-addtexttrack
-     *
-     * @param {string} [kind]
-     *        the kind of TextTrack you are adding
-     *
-     * @param {string} [label]
-     *        the label to give the TextTrack label
-     *
-     * @param {string} [language]
-     *        the language to set on the TextTrack
-     *
-     * @return {TextTrack|undefined}
-     *         the TextTrack that was added or undefined
-     *         if there is no tech
-     */
-    addTextTrack(kind, label, language) {
-      if (this.tech_) {
-        return this.tech_.addTextTrack(kind, label, language);
-      }
-    }
-
-    /**
-     * Create a remote {@link TextTrack} and an {@link HTMLTrackElement}.
-     *
-     * @param {Object} options
-     *        Options to pass to {@link HTMLTrackElement} during creation. See
-     *        {@link HTMLTrackElement} for object properties that you should use.
-     *
-     * @param {boolean} [manualCleanup=false] if set to true, the TextTrack will not be removed
-     *                                        from the TextTrackList and HtmlTrackElementList
-     *                                        after a source change
-     *
-     * @return { import('./tracks/html-track-element').default }
-     *         the HTMLTrackElement that was created and added
-     *         to the HtmlTrackElementList and the remote
-     *         TextTrackList
-     *
-     */
-    addRemoteTextTrack(options, manualCleanup) {
-      if (this.tech_) {
-        return this.tech_.addRemoteTextTrack(options, manualCleanup);
-      }
-    }
-
-    /**
-     * Remove a remote {@link TextTrack} from the respective
-     * {@link TextTrackList} and {@link HtmlTrackElementList}.
-     *
-     * @param {Object} track
-     *        Remote {@link TextTrack} to remove
-     *
-     * @return {undefined}
-     *         does not return anything
-     */
-    removeRemoteTextTrack(obj = {}) {
-      let {
-        track
-      } = obj;
-      if (!track) {
-        track = obj;
-      }
-
-      // destructure the input into an object with a track argument, defaulting to arguments[0]
-      // default the whole argument to an empty object if nothing was passed in
-
-      if (this.tech_) {
-        return this.tech_.removeRemoteTextTrack(track);
-      }
-    }
-
-    /**
-     * Gets available media playback quality metrics as specified by the W3C's Media
-     * Playback Quality API.
-     *
-     * @see [Spec]{@link https://wicg.github.io/media-playback-quality}
-     *
-     * @return {Object|undefined}
-     *         An object with supported media playback quality metrics or undefined if there
-     *         is no tech or the tech does not support it.
-     */
-    getVideoPlaybackQuality() {
-      return this.techGet_('getVideoPlaybackQuality');
-    }
-
-    /**
-     * Get video width
-     *
-     * @return {number}
-     *         current video width
-     */
-    videoWidth() {
-      return this.tech_ && this.tech_.videoWidth && this.tech_.videoWidth() || 0;
-    }
-
-    /**
-     * Get video height
-     *
-     * @return {number}
-     *         current video height
-     */
-    videoHeight() {
-      return this.tech_ && this.tech_.videoHeight && this.tech_.videoHeight() || 0;
-    }
-
-    /**
-     * Set or get the player's language code.
-     *
-     * Changing the language will trigger
-     * [languagechange]{@link Player#event:languagechange}
-     * which Components can use to update control text.
-     * ClickableComponent will update its control text by default on
-     * [languagechange]{@link Player#event:languagechange}.
-     *
-     * @fires Player#languagechange
-     *
-     * @param {string} [code]
-     *        the language code to set the player to
-     *
-     * @return {string|undefined}
-     *         - The current language code when getting
-     *         - Nothing when setting
-     */
-    language(code) {
-      if (code === undefined) {
-        return this.language_;
-      }
-      if (this.language_ !== String(code).toLowerCase()) {
-        this.language_ = String(code).toLowerCase();
-
-        // during first init, it's possible some things won't be evented
-        if (isEvented(this)) {
-          /**
-          * fires when the player language change
-          *
-          * @event Player#languagechange
-          * @type {Event}
-          */
-          this.trigger('languagechange');
-        }
-      }
-    }
-
-    /**
-     * Get the player's language dictionary
-     * Merge every time, because a newly added plugin might call videojs.addLanguage() at any time
-     * Languages specified directly in the player options have precedence
-     *
-     * @return {Array}
-     *         An array of of supported languages
-     */
-    languages() {
-      return merge$2(Player.prototype.options_.languages, this.languages_);
-    }
-
-    /**
-     * returns a JavaScript object representing the current track
-     * information. **DOES not return it as JSON**
-     *
-     * @return {Object}
-     *         Object representing the current of track info
-     */
-    toJSON() {
-      const options = merge$2(this.options_);
-      const tracks = options.tracks;
-      options.tracks = [];
-      for (let i = 0; i < tracks.length; i++) {
-        let track = tracks[i];
-
-        // deep merge tracks and null out player so no circular references
-        track = merge$2(track);
-        track.player = undefined;
-        options.tracks[i] = track;
-      }
-      return options;
-    }
-
-    /**
-     * Creates a simple modal dialog (an instance of the {@link ModalDialog}
-     * component) that immediately overlays the player with arbitrary
-     * content and removes itself when closed.
-     *
-     * @param {string|Function|Element|Array|null} content
-     *        Same as {@link ModalDialog#content}'s param of the same name.
-     *        The most straight-forward usage is to provide a string or DOM
-     *        element.
-     *
-     * @param {Object} [options]
-     *        Extra options which will be passed on to the {@link ModalDialog}.
-     *
-     * @return {ModalDialog}
-     *         the {@link ModalDialog} that was created
-     */
-    createModal(content, options) {
-      options = options || {};
-      options.content = content || '';
-      const modal = new ModalDialog(this, options);
-      this.addChild(modal);
-      modal.on('dispose', () => {
-        this.removeChild(modal);
-      });
-      modal.open();
-      return modal;
-    }
-
-    /**
-     * Change breakpoint classes when the player resizes.
-     *
-     * @private
-     */
-    updateCurrentBreakpoint_() {
-      if (!this.responsive()) {
-        return;
-      }
-      const currentBreakpoint = this.currentBreakpoint();
-      const currentWidth = this.currentWidth();
-      for (let i = 0; i < BREAKPOINT_ORDER.length; i++) {
-        const candidateBreakpoint = BREAKPOINT_ORDER[i];
-        const maxWidth = this.breakpoints_[candidateBreakpoint];
-        if (currentWidth <= maxWidth) {
-          // The current breakpoint did not change, nothing to do.
-          if (currentBreakpoint === candidateBreakpoint) {
-            return;
-          }
-
-          // Only remove a class if there is a current breakpoint.
-          if (currentBreakpoint) {
-            this.removeClass(BREAKPOINT_CLASSES[currentBreakpoint]);
-          }
-          this.addClass(BREAKPOINT_CLASSES[candidateBreakpoint]);
-          this.breakpoint_ = candidateBreakpoint;
-          break;
-        }
-      }
-    }
-
-    /**
-     * Removes the current breakpoint.
-     *
-     * @private
-     */
-    removeCurrentBreakpoint_() {
-      const className = this.currentBreakpointClass();
-      this.breakpoint_ = '';
-      if (className) {
-        this.removeClass(className);
-      }
-    }
-
-    /**
-     * Get or set breakpoints on the player.
-     *
-     * Calling this method with an object or `true` will remove any previous
-     * custom breakpoints and start from the defaults again.
-     *
-     * @param  {Object|boolean} [breakpoints]
-     *         If an object is given, it can be used to provide custom
-     *         breakpoints. If `true` is given, will set default breakpoints.
-     *         If this argument is not given, will simply return the current
-     *         breakpoints.
-     *
-     * @param  {number} [breakpoints.tiny]
-     *         The maximum width for the "vjs-layout-tiny" class.
-     *
-     * @param  {number} [breakpoints.xsmall]
-     *         The maximum width for the "vjs-layout-x-small" class.
-     *
-     * @param  {number} [breakpoints.small]
-     *         The maximum width for the "vjs-layout-small" class.
-     *
-     * @param  {number} [breakpoints.medium]
-     *         The maximum width for the "vjs-layout-medium" class.
-     *
-     * @param  {number} [breakpoints.large]
-     *         The maximum width for the "vjs-layout-large" class.
-     *
-     * @param  {number} [breakpoints.xlarge]
-     *         The maximum width for the "vjs-layout-x-large" class.
-     *
-     * @param  {number} [breakpoints.huge]
-     *         The maximum width for the "vjs-layout-huge" class.
-     *
-     * @return {Object}
-     *         An object mapping breakpoint names to maximum width values.
-     */
-    breakpoints(breakpoints) {
-      // Used as a getter.
-      if (breakpoints === undefined) {
-        return Object.assign(this.breakpoints_);
-      }
-      this.breakpoint_ = '';
-      this.breakpoints_ = Object.assign({}, DEFAULT_BREAKPOINTS, breakpoints);
-
-      // When breakpoint definitions change, we need to update the currently
-      // selected breakpoint.
-      this.updateCurrentBreakpoint_();
-
-      // Clone the breakpoints before returning.
-      return Object.assign(this.breakpoints_);
-    }
-
-    /**
-     * Get or set a flag indicating whether or not this player should adjust
-     * its UI based on its dimensions.
-     *
-     * @param  {boolean} [value]
-     *         Should be `true` if the player should adjust its UI based on its
-     *         dimensions; otherwise, should be `false`.
-     *
-     * @return {boolean|undefined}
-     *         Will be `true` if this player should adjust its UI based on its
-     *         dimensions; otherwise, will be `false`.
-     *         Nothing if setting
-     */
-    responsive(value) {
-      // Used as a getter.
-      if (value === undefined) {
-        return this.responsive_;
-      }
-      value = Boolean(value);
-      const current = this.responsive_;
-
-      // Nothing changed.
-      if (value === current) {
-        return;
-      }
-
-      // The value actually changed, set it.
-      this.responsive_ = value;
-
-      // Start listening for breakpoints and set the initial breakpoint if the
-      // player is now responsive.
-      if (value) {
-        this.on('playerresize', this.boundUpdateCurrentBreakpoint_);
-        this.updateCurrentBreakpoint_();
-
-        // Stop listening for breakpoints if the player is no longer responsive.
-      } else {
-        this.off('playerresize', this.boundUpdateCurrentBreakpoint_);
-        this.removeCurrentBreakpoint_();
-      }
-      return value;
-    }
-
-    /**
-     * Get current breakpoint name, if any.
-     *
-     * @return {string}
-     *         If there is currently a breakpoint set, returns a the key from the
-     *         breakpoints object matching it. Otherwise, returns an empty string.
-     */
-    currentBreakpoint() {
-      return this.breakpoint_;
-    }
-
-    /**
-     * Get the current breakpoint class name.
-     *
-     * @return {string}
-     *         The matching class name (e.g. `"vjs-layout-tiny"` or
-     *         `"vjs-layout-large"`) for the current breakpoint. Empty string if
-     *         there is no current breakpoint.
-     */
-    currentBreakpointClass() {
-      return BREAKPOINT_CLASSES[this.breakpoint_] || '';
-    }
-
-    /**
-     * An object that describes a single piece of media.
-     *
-     * Properties that are not part of this type description will be retained; so,
-     * this can be viewed as a generic metadata storage mechanism as well.
-     *
-     * @see      {@link https://wicg.github.io/mediasession/#the-mediametadata-interface}
-     * @typedef  {Object} Player~MediaObject
-     *
-     * @property {string} [album]
-     *           Unused, except if this object is passed to the `MediaSession`
-     *           API.
-     *
-     * @property {string} [artist]
-     *           Unused, except if this object is passed to the `MediaSession`
-     *           API.
-     *
-     * @property {Object[]} [artwork]
-     *           Unused, except if this object is passed to the `MediaSession`
-     *           API. If not specified, will be populated via the `poster`, if
-     *           available.
-     *
-     * @property {string} [poster]
-     *           URL to an image that will display before playback.
-     *
-     * @property {Tech~SourceObject|Tech~SourceObject[]|string} [src]
-     *           A single source object, an array of source objects, or a string
-     *           referencing a URL to a media source. It is _highly recommended_
-     *           that an object or array of objects is used here, so that source
-     *           selection algorithms can take the `type` into account.
-     *
-     * @property {string} [title]
-     *           Unused, except if this object is passed to the `MediaSession`
-     *           API.
-     *
-     * @property {Object[]} [textTracks]
-     *           An array of objects to be used to create text tracks, following
-     *           the {@link https://www.w3.org/TR/html50/embedded-content-0.html#the-track-element|native track element format}.
-     *           For ease of removal, these will be created as "remote" text
-     *           tracks and set to automatically clean up on source changes.
-     *
-     *           These objects may have properties like `src`, `kind`, `label`,
-     *           and `language`, see {@link Tech#createRemoteTextTrack}.
-     */
-
-    /**
-     * Populate the player using a {@link Player~MediaObject|MediaObject}.
-     *
-     * @param  {Player~MediaObject} media
-     *         A media object.
-     *
-     * @param  {Function} ready
-     *         A callback to be called when the player is ready.
-     */
-    loadMedia(media, ready) {
-      if (!media || typeof media !== 'object') {
-        return;
-      }
-      const crossOrigin = this.crossOrigin();
-      this.reset();
-
-      // Clone the media object so it cannot be mutated from outside.
-      this.cache_.media = merge$2(media);
-      const {
-        artist,
-        artwork,
-        description,
-        poster,
-        src,
-        textTracks,
-        title
-      } = this.cache_.media;
-
-      // If `artwork` is not given, create it using `poster`.
-      if (!artwork && poster) {
-        this.cache_.media.artwork = [{
-          src: poster,
-          type: getMimetype(poster)
-        }];
-      }
-      if (crossOrigin) {
-        this.crossOrigin(crossOrigin);
-      }
-      if (src) {
-        this.src(src);
-      }
-      if (poster) {
-        this.poster(poster);
-      }
-      if (Array.isArray(textTracks)) {
-        textTracks.forEach(tt => this.addRemoteTextTrack(tt, false));
-      }
-      if (this.titleBar) {
-        this.titleBar.update({
-          title,
-          description: description || artist || ''
-        });
-      }
-      this.ready(ready);
-    }
-
-    /**
-     * Get a clone of the current {@link Player~MediaObject} for this player.
-     *
-     * If the `loadMedia` method has not been used, will attempt to return a
-     * {@link Player~MediaObject} based on the current state of the player.
-     *
-     * @return {Player~MediaObject}
-     */
-    getMedia() {
-      if (!this.cache_.media) {
-        const poster = this.poster();
-        const src = this.currentSources();
-        const textTracks = Array.prototype.map.call(this.remoteTextTracks(), tt => ({
-          kind: tt.kind,
-          label: tt.label,
-          language: tt.language,
-          src: tt.src
-        }));
-        const media = {
-          src,
-          textTracks
-        };
-        if (poster) {
-          media.poster = poster;
-          media.artwork = [{
-            src: media.poster,
-            type: getMimetype(media.poster)
-          }];
-        }
-        return media;
-      }
-      return merge$2(this.cache_.media);
-    }
-
-    /**
-     * Gets tag settings
-     *
-     * @param {Element} tag
-     *        The player tag
-     *
-     * @return {Object}
-     *         An object containing all of the settings
-     *         for a player tag
-     */
-    static getTagSettings(tag) {
-      const baseOptions = {
-        sources: [],
-        tracks: []
-      };
-      const tagOptions = getAttributes(tag);
-      const dataSetup = tagOptions['data-setup'];
-      if (hasClass(tag, 'vjs-fill')) {
-        tagOptions.fill = true;
-      }
-      if (hasClass(tag, 'vjs-fluid')) {
-        tagOptions.fluid = true;
-      }
-
-      // Check if data-setup attr exists.
-      if (dataSetup !== null) {
-        // Parse options JSON
-        // If empty string, make it a parsable json object.
-        const [err, data] = tuple(dataSetup || '{}');
-        if (err) {
-          log$1.error(err);
-        }
-        Object.assign(tagOptions, data);
-      }
-      Object.assign(baseOptions, tagOptions);
-
-      // Get tag children settings
-      if (tag.hasChildNodes()) {
-        const children = tag.childNodes;
-        for (let i = 0, j = children.length; i < j; i++) {
-          const child = children[i];
-          // Change case needed: http://ejohn.org/blog/nodename-case-sensitivity/
-          const childName = child.nodeName.toLowerCase();
-          if (childName === 'source') {
-            baseOptions.sources.push(getAttributes(child));
-          } else if (childName === 'track') {
-            baseOptions.tracks.push(getAttributes(child));
-          }
-        }
-      }
-      return baseOptions;
-    }
-
-    /**
-     * Set debug mode to enable/disable logs at info level.
-     *
-     * @param {boolean} enabled
-     * @fires Player#debugon
-     * @fires Player#debugoff
-     * @return {boolean|undefined}
-     */
-    debug(enabled) {
-      if (enabled === undefined) {
-        return this.debugEnabled_;
-      }
-      if (enabled) {
-        this.trigger('debugon');
-        this.previousLogLevel_ = this.log.level;
-        this.log.level('debug');
-        this.debugEnabled_ = true;
-      } else {
-        this.trigger('debugoff');
-        this.log.level(this.previousLogLevel_);
-        this.previousLogLevel_ = undefined;
-        this.debugEnabled_ = false;
-      }
-    }
-
-    /**
-     * Set or get current playback rates.
-     * Takes an array and updates the playback rates menu with the new items.
-     * Pass in an empty array to hide the menu.
-     * Values other than arrays are ignored.
-     *
-     * @fires Player#playbackrateschange
-     * @param {number[]} [newRates]
-     *                   The new rates that the playback rates menu should update to.
-     *                   An empty array will hide the menu
-     * @return {number[]} When used as a getter will return the current playback rates
-     */
-    playbackRates(newRates) {
-      if (newRates === undefined) {
-        return this.cache_.playbackRates;
-      }
-
-      // ignore any value that isn't an array
-      if (!Array.isArray(newRates)) {
-        return;
-      }
-
-      // ignore any arrays that don't only contain numbers
-      if (!newRates.every(rate => typeof rate === 'number')) {
-        return;
-      }
-      this.cache_.playbackRates = newRates;
-
-      /**
-      * fires when the playback rates in a player are changed
-      *
-      * @event Player#playbackrateschange
-      * @type {Event}
-      */
-      this.trigger('playbackrateschange');
-    }
-  }
-
-  /**
-   * Get the {@link VideoTrackList}
-   *
-   * @link https://html.spec.whatwg.org/multipage/embedded-content.html#videotracklist
-   *
-   * @return {VideoTrackList}
-   *         the current video track list
-   *
-   * @method Player.prototype.videoTracks
-   */
-
-  /**
-   * Get the {@link AudioTrackList}
-   *
-   * @link https://html.spec.whatwg.org/multipage/embedded-content.html#audiotracklist
-   *
-   * @return {AudioTrackList}
-   *         the current audio track list
-   *
-   * @method Player.prototype.audioTracks
-   */
-
-  /**
-   * Get the {@link TextTrackList}
-   *
-   * @link http://www.w3.org/html/wg/drafts/html/master/embedded-content-0.html#dom-media-texttracks
-   *
-   * @return {TextTrackList}
-   *         the current text track list
-   *
-   * @method Player.prototype.textTracks
-   */
-
-  /**
-   * Get the remote {@link TextTrackList}
-   *
-   * @return {TextTrackList}
-   *         The current remote text track list
-   *
-   * @method Player.prototype.remoteTextTracks
-   */
-
-  /**
-   * Get the remote {@link HtmlTrackElementList} tracks.
-   *
-   * @return {HtmlTrackElementList}
-   *         The current remote text track element list
-   *
-   * @method Player.prototype.remoteTextTrackEls
-   */
-
-  ALL.names.forEach(function (name) {
-    const props = ALL[name];
-    Player.prototype[props.getterName] = function () {
-      if (this.tech_) {
-        return this.tech_[props.getterName]();
-      }
-
-      // if we have not yet loadTech_, we create {video,audio,text}Tracks_
-      // these will be passed to the tech during loading
-      this[props.privateName] = this[props.privateName] || new props.ListClass();
-      return this[props.privateName];
-    };
-  });
-
-  /**
-   * Get or set the `Player`'s crossorigin option. For the HTML5 player, this
-   * sets the `crossOrigin` property on the `<video>` tag to control the CORS
-   * behavior.
-   *
-   * @see [Video Element Attributes]{@link https://developer.mozilla.org/en-US/docs/Web/HTML/Element/video#attr-crossorigin}
-   *
-   * @param {string} [value]
-   *        The value to set the `Player`'s crossorigin to. If an argument is
-   *        given, must be one of `anonymous` or `use-credentials`.
-   *
-   * @return {string|undefined}
-   *         - The current crossorigin value of the `Player` when getting.
-   *         - undefined when setting
-   */
-  Player.prototype.crossorigin = Player.prototype.crossOrigin;
-
-  /**
-   * Global enumeration of players.
-   *
-   * The keys are the player IDs and the values are either the {@link Player}
-   * instance or `null` for disposed players.
-   *
-   * @type {Object}
-   */
-  Player.players = {};
-  const navigator = window.navigator;
-
-  /*
-   * Player instance options, surfaced using options
-   * options = Player.prototype.options_
-   * Make changes in options, not here.
-   *
-   * @type {Object}
-   * @private
-   */
-  Player.prototype.options_ = {
-    // Default order of fallback technology
-    techOrder: Tech.defaultTechOrder_,
-    html5: {},
-    // enable sourceset by default
-    enableSourceset: true,
-    // default inactivity timeout
-    inactivityTimeout: 2000,
-    // default playback rates
-    playbackRates: [],
-    // Add playback rate selection by adding rates
-    // 'playbackRates': [0.5, 1, 1.5, 2],
-    liveui: false,
-    // Included control sets
-    children: ['mediaLoader', 'posterImage', 'titleBar', 'textTrackDisplay', 'loadingSpinner', 'bigPlayButton', 'liveTracker', 'controlBar', 'errorDisplay', 'textTrackSettings', 'resizeManager'],
-    language: navigator && (navigator.languages && navigator.languages[0] || navigator.userLanguage || navigator.language) || 'en',
-    // locales and their language translations
-    languages: {},
-    // Default message to show when a video cannot be played.
-    notSupportedMessage: 'No compatible source was found for this media.',
-    normalizeAutoplay: false,
-    fullscreen: {
-      options: {
-        navigationUI: 'hide'
-      }
-    },
-    breakpoints: {},
-    responsive: false,
-    audioOnlyMode: false,
-    audioPosterMode: false,
-    // Default smooth seeking to false
-    enableSmoothSeeking: false
-  };
-  TECH_EVENTS_RETRIGGER.forEach(function (event) {
-    Player.prototype[`handleTech${toTitleCase$1(event)}_`] = function () {
-      return this.trigger(event);
-    };
-  });
-
-  /**
-   * Fired when the player has initial duration and dimension information
-   *
-   * @event Player#loadedmetadata
-   * @type {Event}
-   */
-
-  /**
-   * Fired when the player has downloaded data at the current playback position
-   *
-   * @event Player#loadeddata
-   * @type {Event}
-   */
-
-  /**
-   * Fired when the current playback position has changed *
-   * During playback this is fired every 15-250 milliseconds, depending on the
-   * playback technology in use.
-   *
-   * @event Player#timeupdate
-   * @type {Event}
-   */
-
-  /**
-   * Fired when the volume changes
-   *
-   * @event Player#volumechange
-   * @type {Event}
-   */
-
-  /**
-   * Reports whether or not a player has a plugin available.
-   *
-   * This does not report whether or not the plugin has ever been initialized
-   * on this player. For that, [usingPlugin]{@link Player#usingPlugin}.
-   *
-   * @method Player#hasPlugin
-   * @param  {string}  name
-   *         The name of a plugin.
-   *
-   * @return {boolean}
-   *         Whether or not this player has the requested plugin available.
-   */
-
-  /**
-   * Reports whether or not a player is using a plugin by name.
-   *
-   * For basic plugins, this only reports whether the plugin has _ever_ been
-   * initialized on this player.
-   *
-   * @method Player#usingPlugin
-   * @param  {string} name
-   *         The name of a plugin.
-   *
-   * @return {boolean}
-   *         Whether or not this player is using the requested plugin.
-   */
-
-  Component$1.registerComponent('Player', Player);
-
-  /**
-   * @file plugin.js
-   */
-
-  /**
-   * The base plugin name.
-   *
-   * @private
-   * @constant
-   * @type {string}
-   */
-  const BASE_PLUGIN_NAME = 'plugin';
-
-  /**
-   * The key on which a player's active plugins cache is stored.
-   *
-   * @private
-   * @constant
-   * @type     {string}
-   */
-  const PLUGIN_CACHE_KEY = 'activePlugins_';
-
-  /**
-   * Stores registered plugins in a private space.
-   *
-   * @private
-   * @type    {Object}
-   */
-  const pluginStorage = {};
-
-  /**
-   * Reports whether or not a plugin has been registered.
-   *
-   * @private
-   * @param   {string} name
-   *          The name of a plugin.
-   *
-   * @return {boolean}
-   *          Whether or not the plugin has been registered.
-   */
-  const pluginExists = name => pluginStorage.hasOwnProperty(name);
-
-  /**
-   * Get a single registered plugin by name.
-   *
-   * @private
-   * @param   {string} name
-   *          The name of a plugin.
-   *
-   * @return {typeof Plugin|Function|undefined}
-   *          The plugin (or undefined).
-   */
-  const getPlugin = name => pluginExists(name) ? pluginStorage[name] : undefined;
-
-  /**
-   * Marks a plugin as "active" on a player.
-   *
-   * Also, ensures that the player has an object for tracking active plugins.
-   *
-   * @private
-   * @param   {Player} player
-   *          A Video.js player instance.
-   *
-   * @param   {string} name
-   *          The name of a plugin.
-   */
-  const markPluginAsActive = (player, name) => {
-    player[PLUGIN_CACHE_KEY] = player[PLUGIN_CACHE_KEY] || {};
-    player[PLUGIN_CACHE_KEY][name] = true;
-  };
-
-  /**
-   * Triggers a pair of plugin setup events.
-   *
-   * @private
-   * @param  {Player} player
-   *         A Video.js player instance.
-   *
-   * @param  {PluginEventHash} hash
-   *         A plugin event hash.
-   *
-   * @param  {boolean} [before]
-   *         If true, prefixes the event name with "before". In other words,
-   *         use this to trigger "beforepluginsetup" instead of "pluginsetup".
-   */
-  const triggerSetupEvent = (player, hash, before) => {
-    const eventName = (before ? 'before' : '') + 'pluginsetup';
-    player.trigger(eventName, hash);
-    player.trigger(eventName + ':' + hash.name, hash);
-  };
-
-  /**
-   * Takes a basic plugin function and returns a wrapper function which marks
-   * on the player that the plugin has been activated.
-   *
-   * @private
-   * @param   {string} name
-   *          The name of the plugin.
-   *
-   * @param   {Function} plugin
-   *          The basic plugin.
-   *
-   * @return {Function}
-   *          A wrapper function for the given plugin.
-   */
-  const createBasicPlugin = function (name, plugin) {
-    const basicPluginWrapper = function () {
-      // We trigger the "beforepluginsetup" and "pluginsetup" events on the player
-      // regardless, but we want the hash to be consistent with the hash provided
-      // for advanced plugins.
-      //
-      // The only potentially counter-intuitive thing here is the `instance` in
-      // the "pluginsetup" event is the value returned by the `plugin` function.
-      triggerSetupEvent(this, {
-        name,
-        plugin,
-        instance: null
-      }, true);
-      const instance = plugin.apply(this, arguments);
-      markPluginAsActive(this, name);
-      triggerSetupEvent(this, {
-        name,
-        plugin,
-        instance
-      });
-      return instance;
-    };
-    Object.keys(plugin).forEach(function (prop) {
-      basicPluginWrapper[prop] = plugin[prop];
-    });
-    return basicPluginWrapper;
-  };
-
-  /**
-   * Takes a plugin sub-class and returns a factory function for generating
-   * instances of it.
-   *
-   * This factory function will replace itself with an instance of the requested
-   * sub-class of Plugin.
-   *
-   * @private
-   * @param   {string} name
-   *          The name of the plugin.
-   *
-   * @param   {Plugin} PluginSubClass
-   *          The advanced plugin.
-   *
-   * @return {Function}
-   */
-  const createPluginFactory = (name, PluginSubClass) => {
-    // Add a `name` property to the plugin prototype so that each plugin can
-    // refer to itself by name.
-    PluginSubClass.prototype.name = name;
-    return function (...args) {
-      triggerSetupEvent(this, {
-        name,
-        plugin: PluginSubClass,
-        instance: null
-      }, true);
-      const instance = new PluginSubClass(...[this, ...args]);
-
-      // The plugin is replaced by a function that returns the current instance.
-      this[name] = () => instance;
-      triggerSetupEvent(this, instance.getEventHash());
-      return instance;
-    };
-  };
-
-  /**
-   * Parent class for all advanced plugins.
-   *
-   * @mixes   module:evented~EventedMixin
-   * @mixes   module:stateful~StatefulMixin
-   * @fires   Player#beforepluginsetup
-   * @fires   Player#beforepluginsetup:$name
-   * @fires   Player#pluginsetup
-   * @fires   Player#pluginsetup:$name
-   * @listens Player#dispose
-   * @throws  {Error}
-   *          If attempting to instantiate the base {@link Plugin} class
-   *          directly instead of via a sub-class.
-   */
-  class Plugin {
-    /**
-     * Creates an instance of this class.
-     *
-     * Sub-classes should call `super` to ensure plugins are properly initialized.
-     *
-     * @param {Player} player
-     *        A Video.js player instance.
-     */
-    constructor(player) {
-      if (this.constructor === Plugin) {
-        throw new Error('Plugin must be sub-classed; not directly instantiated.');
-      }
-      this.player = player;
-      if (!this.log) {
-        this.log = this.player.log.createLogger(this.name);
-      }
-
-      // Make this object evented, but remove the added `trigger` method so we
-      // use the prototype version instead.
-      evented(this);
-      delete this.trigger;
-      stateful(this, this.constructor.defaultState);
-      markPluginAsActive(player, this.name);
-
-      // Auto-bind the dispose method so we can use it as a listener and unbind
-      // it later easily.
-      this.dispose = this.dispose.bind(this);
-
-      // If the player is disposed, dispose the plugin.
-      player.on('dispose', this.dispose);
-    }
-
-    /**
-     * Get the version of the plugin that was set on <pluginName>.VERSION
-     */
-    version() {
-      return this.constructor.VERSION;
-    }
-
-    /**
-     * Each event triggered by plugins includes a hash of additional data with
-     * conventional properties.
-     *
-     * This returns that object or mutates an existing hash.
-     *
-     * @param   {Object} [hash={}]
-     *          An object to be used as event an event hash.
-     *
-     * @return {PluginEventHash}
-     *          An event hash object with provided properties mixed-in.
-     */
-    getEventHash(hash = {}) {
-      hash.name = this.name;
-      hash.plugin = this.constructor;
-      hash.instance = this;
-      return hash;
-    }
-
-    /**
-     * Triggers an event on the plugin object and overrides
-     * {@link module:evented~EventedMixin.trigger|EventedMixin.trigger}.
-     *
-     * @param   {string|Object} event
-     *          An event type or an object with a type property.
-     *
-     * @param   {Object} [hash={}]
-     *          Additional data hash to merge with a
-     *          {@link PluginEventHash|PluginEventHash}.
-     *
-     * @return {boolean}
-     *          Whether or not default was prevented.
-     */
-    trigger(event, hash = {}) {
-      return trigger(this.eventBusEl_, event, this.getEventHash(hash));
-    }
-
-    /**
-     * Handles "statechanged" events on the plugin. No-op by default, override by
-     * subclassing.
-     *
-     * @abstract
-     * @param    {Event} e
-     *           An event object provided by a "statechanged" event.
-     *
-     * @param    {Object} e.changes
-     *           An object describing changes that occurred with the "statechanged"
-     *           event.
-     */
-    handleStateChanged(e) {}
-
-    /**
-     * Disposes a plugin.
-     *
-     * Subclasses can override this if they want, but for the sake of safety,
-     * it's probably best to subscribe the "dispose" event.
-     *
-     * @fires Plugin#dispose
-     */
-    dispose() {
-      const {
-        name,
-        player
-      } = this;
-
-      /**
-       * Signals that a advanced plugin is about to be disposed.
-       *
-       * @event Plugin#dispose
-       * @type  {Event}
-       */
-      this.trigger('dispose');
-      this.off();
-      player.off('dispose', this.dispose);
-
-      // Eliminate any possible sources of leaking memory by clearing up
-      // references between the player and the plugin instance and nulling out
-      // the plugin's state and replacing methods with a function that throws.
-      player[PLUGIN_CACHE_KEY][name] = false;
-      this.player = this.state = null;
-
-      // Finally, replace the plugin name on the player with a new factory
-      // function, so that the plugin is ready to be set up again.
-      player[name] = createPluginFactory(name, pluginStorage[name]);
-    }
-
-    /**
-     * Determines if a plugin is a basic plugin (i.e. not a sub-class of `Plugin`).
-     *
-     * @param   {string|Function} plugin
-     *          If a string, matches the name of a plugin. If a function, will be
-     *          tested directly.
-     *
-     * @return {boolean}
-     *          Whether or not a plugin is a basic plugin.
-     */
-    static isBasic(plugin) {
-      const p = typeof plugin === 'string' ? getPlugin(plugin) : plugin;
-      return typeof p === 'function' && !Plugin.prototype.isPrototypeOf(p.prototype);
-    }
-
-    /**
-     * Register a Video.js plugin.
-     *
-     * @param   {string} name
-     *          The name of the plugin to be registered. Must be a string and
-     *          must not match an existing plugin or a method on the `Player`
-     *          prototype.
-     *
-     * @param   {typeof Plugin|Function} plugin
-     *          A sub-class of `Plugin` or a function for basic plugins.
-     *
-     * @return {typeof Plugin|Function}
-     *          For advanced plugins, a factory function for that plugin. For
-     *          basic plugins, a wrapper function that initializes the plugin.
-     */
-    static registerPlugin(name, plugin) {
-      if (typeof name !== 'string') {
-        throw new Error(`Illegal plugin name, "${name}", must be a string, was ${typeof name}.`);
-      }
-      if (pluginExists(name)) {
-        log$1.warn(`A plugin named "${name}" already exists. You may want to avoid re-registering plugins!`);
-      } else if (Player.prototype.hasOwnProperty(name)) {
-        throw new Error(`Illegal plugin name, "${name}", cannot share a name with an existing player method!`);
-      }
-      if (typeof plugin !== 'function') {
-        throw new Error(`Illegal plugin for "${name}", must be a function, was ${typeof plugin}.`);
-      }
-      pluginStorage[name] = plugin;
-
-      // Add a player prototype method for all sub-classed plugins (but not for
-      // the base Plugin class).
-      if (name !== BASE_PLUGIN_NAME) {
-        if (Plugin.isBasic(plugin)) {
-          Player.prototype[name] = createBasicPlugin(name, plugin);
-        } else {
-          Player.prototype[name] = createPluginFactory(name, plugin);
-        }
-      }
-      return plugin;
-    }
-
-    /**
-     * De-register a Video.js plugin.
-     *
-     * @param  {string} name
-     *         The name of the plugin to be de-registered. Must be a string that
-     *         matches an existing plugin.
-     *
-     * @throws {Error}
-     *         If an attempt is made to de-register the base plugin.
-     */
-    static deregisterPlugin(name) {
-      if (name === BASE_PLUGIN_NAME) {
-        throw new Error('Cannot de-register base plugin.');
-      }
-      if (pluginExists(name)) {
-        delete pluginStorage[name];
-        delete Player.prototype[name];
-      }
-    }
-
-    /**
-     * Gets an object containing multiple Video.js plugins.
-     *
-     * @param   {Array} [names]
-     *          If provided, should be an array of plugin names. Defaults to _all_
-     *          plugin names.
-     *
-     * @return {Object|undefined}
-     *          An object containing plugin(s) associated with their name(s) or
-     *          `undefined` if no matching plugins exist).
-     */
-    static getPlugins(names = Object.keys(pluginStorage)) {
-      let result;
-      names.forEach(name => {
-        const plugin = getPlugin(name);
-        if (plugin) {
-          result = result || {};
-          result[name] = plugin;
-        }
-      });
-      return result;
-    }
-
-    /**
-     * Gets a plugin's version, if available
-     *
-     * @param   {string} name
-     *          The name of a plugin.
-     *
-     * @return {string}
-     *          The plugin's version or an empty string.
-     */
-    static getPluginVersion(name) {
-      const plugin = getPlugin(name);
-      return plugin && plugin.VERSION || '';
-    }
-  }
-
-  /**
-   * Gets a plugin by name if it exists.
-   *
-   * @static
-   * @method   getPlugin
-   * @memberOf Plugin
-   * @param    {string} name
-   *           The name of a plugin.
-   *
-   * @returns  {typeof Plugin|Function|undefined}
-   *           The plugin (or `undefined`).
-   */
-  Plugin.getPlugin = getPlugin;
-
-  /**
-   * The name of the base plugin class as it is registered.
-   *
-   * @type {string}
-   */
-  Plugin.BASE_PLUGIN_NAME = BASE_PLUGIN_NAME;
-  Plugin.registerPlugin(BASE_PLUGIN_NAME, Plugin);
-
-  /**
-   * Documented in player.js
-   *
-   * @ignore
-   */
-  Player.prototype.usingPlugin = function (name) {
-    return !!this[PLUGIN_CACHE_KEY] && this[PLUGIN_CACHE_KEY][name] === true;
-  };
-
-  /**
-   * Documented in player.js
-   *
-   * @ignore
-   */
-  Player.prototype.hasPlugin = function (name) {
-    return !!pluginExists(name);
-  };
-
-  /**
-   * Signals that a plugin is about to be set up on a player.
-   *
-   * @event    Player#beforepluginsetup
-   * @type     {PluginEventHash}
-   */
-
-  /**
-   * Signals that a plugin is about to be set up on a player - by name. The name
-   * is the name of the plugin.
-   *
-   * @event    Player#beforepluginsetup:$name
-   * @type     {PluginEventHash}
-   */
-
-  /**
-   * Signals that a plugin has just been set up on a player.
-   *
-   * @event    Player#pluginsetup
-   * @type     {PluginEventHash}
-   */
-
-  /**
-   * Signals that a plugin has just been set up on a player - by name. The name
-   * is the name of the plugin.
-   *
-   * @event    Player#pluginsetup:$name
-   * @type     {PluginEventHash}
-   */
-
-  /**
-   * @typedef  {Object} PluginEventHash
-   *
-   * @property {string} instance
-   *           For basic plugins, the return value of the plugin function. For
-   *           advanced plugins, the plugin instance on which the event is fired.
-   *
-   * @property {string} name
-   *           The name of the plugin.
-   *
-   * @property {string} plugin
-   *           For basic plugins, the plugin function. For advanced plugins, the
-   *           plugin class/constructor.
-   */
-
-  /**
-   * @file deprecate.js
-   * @module deprecate
-   */
-
-  /**
-   * Decorate a function with a deprecation message the first time it is called.
-   *
-   * @param  {string}   message
-   *         A deprecation message to log the first time the returned function
-   *         is called.
-   *
-   * @param  {Function} fn
-   *         The function to be deprecated.
-   *
-   * @return {Function}
-   *         A wrapper function that will log a deprecation warning the first
-   *         time it is called. The return value will be the return value of
-   *         the wrapped function.
-   */
-  function deprecate(message, fn) {
-    let warned = false;
-    return function (...args) {
-      if (!warned) {
-        log$1.warn(message);
-      }
-      warned = true;
-      return fn.apply(this, args);
-    };
-  }
-
-  /**
-   * Internal function used to mark a function as deprecated in the next major
-   * version with consistent messaging.
-   *
-   * @param  {number}   major   The major version where it will be removed
-   * @param  {string}   oldName The old function name
-   * @param  {string}   newName The new function name
-   * @param  {Function} fn      The function to deprecate
-   * @return {Function}         The decorated function
-   */
-  function deprecateForMajor(major, oldName, newName, fn) {
-    return deprecate(`${oldName} is deprecated and will be removed in ${major}.0; please use ${newName} instead.`, fn);
-  }
-
-  var VjsErrors = {
-    UnsupportedSidxContainer: 'unsupported-sidx-container-error',
-    DashManifestSidxParsingError: 'dash-manifest-sidx-parsing-error',
-    HlsPlaylistRequestError: 'hls-playlist-request-error',
-    SegmentUnsupportedMediaFormat: 'segment-unsupported-media-format-error',
-    UnsupportedMediaInitialization: 'unsupported-media-initialization-error',
-    SegmentSwitchError: 'segment-switch-error',
-    SegmentExceedsSourceBufferQuota: 'segment-exceeds-source-buffer-quota-error',
-    SegmentAppendError: 'segment-append-error',
-    VttLoadError: 'vtt-load-error',
-    VttCueParsingError: 'vtt-cue-parsing-error',
-    // Errors used in contrib-ads:
-    AdsBeforePrerollError: 'ads-before-preroll-error',
-    AdsPrerollError: 'ads-preroll-error',
-    AdsMidrollError: 'ads-midroll-error',
-    AdsPostrollError: 'ads-postroll-error',
-    AdsMacroReplacementFailed: 'ads-macro-replacement-failed',
-    AdsResumeContentFailed: 'ads-resume-content-failed',
-    // Errors used in contrib-eme:
-    EMEFailedToRequestMediaKeySystemAccess: 'eme-failed-request-media-key-system-access',
-    EMEFailedToCreateMediaKeys: 'eme-failed-create-media-keys',
-    EMEFailedToAttachMediaKeysToVideoElement: 'eme-failed-attach-media-keys-to-video',
-    EMEFailedToCreateMediaKeySession: 'eme-failed-create-media-key-session',
-    EMEFailedToSetServerCertificate: 'eme-failed-set-server-certificate',
-    EMEFailedToGenerateLicenseRequest: 'eme-failed-generate-license-request',
-    EMEFailedToUpdateSessionWithReceivedLicenseKeys: 'eme-failed-update-session',
-    EMEFailedToCloseSession: 'eme-failed-close-session',
-    EMEFailedToRemoveKeysFromSession: 'eme-failed-remove-keys',
-    EMEFailedToLoadSessionBySessionId: 'eme-failed-load-session'
-  };
-
-  /**
-   * @file video.js
-   * @module videojs
-   */
-
-  /**
-   * Normalize an `id` value by trimming off a leading `#`
-   *
-   * @private
-   * @param   {string} id
-   *          A string, maybe with a leading `#`.
-   *
-   * @return {string}
-   *          The string, without any leading `#`.
-   */
-  const normalizeId = id => id.indexOf('#') === 0 ? id.slice(1) : id;
-
-  /**
-   * A callback that is called when a component is ready. Does not have any
-   * parameters and any callback value will be ignored. See: {@link Component~ReadyCallback}
-   *
-   * @callback ReadyCallback
-   */
-
-  /**
-   * The `videojs()` function doubles as the main function for users to create a
-   * {@link Player} instance as well as the main library namespace.
-   *
-   * It can also be used as a getter for a pre-existing {@link Player} instance.
-   * However, we _strongly_ recommend using `videojs.getPlayer()` for this
-   * purpose because it avoids any potential for unintended initialization.
-   *
-   * Due to [limitations](https://github.com/jsdoc3/jsdoc/issues/955#issuecomment-313829149)
-   * of our JSDoc template, we cannot properly document this as both a function
-   * and a namespace, so its function signature is documented here.
-   *
-   * #### Arguments
-   * ##### id
-   * string|Element, **required**
-   *
-   * Video element or video element ID.
-   *
-   * ##### options
-   * Object, optional
-   *
-   * Options object for providing settings.
-   * See: [Options Guide](https://docs.videojs.com/tutorial-options.html).
-   *
-   * ##### ready
-   * {@link Component~ReadyCallback}, optional
-   *
-   * A function to be called when the {@link Player} and {@link Tech} are ready.
-   *
-   * #### Return Value
-   *
-   * The `videojs()` function returns a {@link Player} instance.
-   *
-   * @namespace
-   *
-   * @borrows AudioTrack as AudioTrack
-   * @borrows Component.getComponent as getComponent
-   * @borrows module:events.on as on
-   * @borrows module:events.one as one
-   * @borrows module:events.off as off
-   * @borrows module:events.trigger as trigger
-   * @borrows EventTarget as EventTarget
-   * @borrows module:middleware.use as use
-   * @borrows Player.players as players
-   * @borrows Plugin.registerPlugin as registerPlugin
-   * @borrows Plugin.deregisterPlugin as deregisterPlugin
-   * @borrows Plugin.getPlugins as getPlugins
-   * @borrows Plugin.getPlugin as getPlugin
-   * @borrows Plugin.getPluginVersion as getPluginVersion
-   * @borrows Tech.getTech as getTech
-   * @borrows Tech.registerTech as registerTech
-   * @borrows TextTrack as TextTrack
-   * @borrows VideoTrack as VideoTrack
-   *
-   * @param  {string|Element} id
-   *         Video element or video element ID.
-   *
-   * @param  {Object} [options]
-   *         Options object for providing settings.
-   *         See: [Options Guide](https://docs.videojs.com/tutorial-options.html).
-   *
-   * @param  {ReadyCallback} [ready]
-   *         A function to be called when the {@link Player} and {@link Tech} are
-   *         ready.
-   *
-   * @return {Player}
-   *         The `videojs()` function returns a {@link Player|Player} instance.
-   */
-  function videojs(id, options, ready) {
-    let player = videojs.getPlayer(id);
-    if (player) {
-      if (options) {
-        log$1.warn(`Player "${id}" is already initialised. Options will not be applied.`);
-      }
-      if (ready) {
-        player.ready(ready);
-      }
-      return player;
-    }
-    const el = typeof id === 'string' ? $('#' + normalizeId(id)) : id;
-    if (!isEl(el)) {
-      throw new TypeError('The element or ID supplied is not valid. (videojs)');
-    }
-
-    // document.body.contains(el) will only check if el is contained within that one document.
-    // This causes problems for elements in iframes.
-    // Instead, use the element's ownerDocument instead of the global document.
-    // This will make sure that the element is indeed in the dom of that document.
-    // Additionally, check that the document in question has a default view.
-    // If the document is no longer attached to the dom, the defaultView of the document will be null.
-    // If element is inside Shadow DOM (e.g. is part of a Custom element), ownerDocument.body
-    // always returns false. Instead, use the Shadow DOM root.
-    const inShadowDom = 'getRootNode' in el ? el.getRootNode() instanceof window.ShadowRoot : false;
-    const rootNode = inShadowDom ? el.getRootNode() : el.ownerDocument.body;
-    if (!el.ownerDocument.defaultView || !rootNode.contains(el)) {
-      log$1.warn('The element supplied is not included in the DOM');
-    }
-    options = options || {};
-
-    // Store a copy of the el before modification, if it is to be restored in destroy()
-    // If div ingest, store the parent div
-    if (options.restoreEl === true) {
-      options.restoreEl = (el.parentNode && el.parentNode.hasAttribute('data-vjs-player') ? el.parentNode : el).cloneNode(true);
-    }
-    hooks('beforesetup').forEach(hookFunction => {
-      const opts = hookFunction(el, merge$2(options));
-      if (!isObject$1(opts) || Array.isArray(opts)) {
-        log$1.error('please return an object in beforesetup hooks');
-        return;
-      }
-      options = merge$2(options, opts);
-    });
-
-    // We get the current "Player" component here in case an integration has
-    // replaced it with a custom player.
-    const PlayerComponent = Component$1.getComponent('Player');
-    player = new PlayerComponent(el, options, ready);
-    hooks('setup').forEach(hookFunction => hookFunction(player));
-    return player;
-  }
-  videojs.hooks_ = hooks_;
-  videojs.hooks = hooks;
-  videojs.hook = hook;
-  videojs.hookOnce = hookOnce;
-  videojs.removeHook = removeHook;
-
-  // Add default styles
-  if (window.VIDEOJS_NO_DYNAMIC_STYLE !== true && isReal()) {
-    let style = $('.vjs-styles-defaults');
-    if (!style) {
-      style = createStyleElement('vjs-styles-defaults');
-      const head = $('head');
-      if (head) {
-        head.insertBefore(style, head.firstChild);
-      }
-      setTextContent(style, `
-      .video-js {
-        width: 300px;
-        height: 150px;
-      }
-
-      .vjs-fluid:not(.vjs-audio-only-mode) {
-        padding-top: 56.25%
-      }
-    `);
-    }
-  }
-
-  // Run Auto-load players
-  // You have to wait at least once in case this script is loaded after your
-  // video in the DOM (weird behavior only with minified version)
-  autoSetupTimeout(1, videojs);
-
-  /**
-   * Current Video.js version. Follows [semantic versioning](https://semver.org/).
-   *
-   * @type {string}
-   */
-  videojs.VERSION = version$5;
-
-  /**
-   * The global options object. These are the settings that take effect
-   * if no overrides are specified when the player is created.
-   *
-   * @type {Object}
-   */
-  videojs.options = Player.prototype.options_;
-
-  /**
-   * Get an object with the currently created players, keyed by player ID
-   *
-   * @return {Object}
-   *         The created players
-   */
-  videojs.getPlayers = () => Player.players;
-
-  /**
-   * Get a single player based on an ID or DOM element.
-   *
-   * This is useful if you want to check if an element or ID has an associated
-   * Video.js player, but not create one if it doesn't.
-   *
-   * @param   {string|Element} id
-   *          An HTML element - `<video>`, `<audio>`, or `<video-js>` -
-   *          or a string matching the `id` of such an element.
-   *
-   * @return {Player|undefined}
-   *          A player instance or `undefined` if there is no player instance
-   *          matching the argument.
-   */
-  videojs.getPlayer = id => {
-    const players = Player.players;
-    let tag;
-    if (typeof id === 'string') {
-      const nId = normalizeId(id);
-      const player = players[nId];
-      if (player) {
-        return player;
-      }
-      tag = $('#' + nId);
-    } else {
-      tag = id;
-    }
-    if (isEl(tag)) {
-      const {
-        player,
-        playerId
-      } = tag;
-
-      // Element may have a `player` property referring to an already created
-      // player instance. If so, return that.
-      if (player || players[playerId]) {
-        return player || players[playerId];
-      }
-    }
-  };
-
-  /**
-   * Returns an array of all current players.
-   *
-   * @return {Array}
-   *         An array of all players. The array will be in the order that
-   *         `Object.keys` provides, which could potentially vary between
-   *         JavaScript engines.
-   *
-   */
-  videojs.getAllPlayers = () =>
-  // Disposed players leave a key with a `null` value, so we need to make sure
-  // we filter those out.
-  Object.keys(Player.players).map(k => Player.players[k]).filter(Boolean);
-  videojs.players = Player.players;
-  videojs.getComponent = Component$1.getComponent;
-
-  /**
-   * Register a component so it can referred to by name. Used when adding to other
-   * components, either through addChild `component.addChild('myComponent')` or through
-   * default children options  `{ children: ['myComponent'] }`.
-   *
-   * > NOTE: You could also just initialize the component before adding.
-   * `component.addChild(new MyComponent());`
-   *
-   * @param {string} name
-   *        The class name of the component
-   *
-   * @param {typeof Component} comp
-   *        The component class
-   *
-   * @return {typeof Component}
-   *         The newly registered component
-   */
-  videojs.registerComponent = (name, comp) => {
-    if (Tech.isTech(comp)) {
-      log$1.warn(`The ${name} tech was registered as a component. It should instead be registered using videojs.registerTech(name, tech)`);
-    }
-    return Component$1.registerComponent.call(Component$1, name, comp);
-  };
-  videojs.getTech = Tech.getTech;
-  videojs.registerTech = Tech.registerTech;
-  videojs.use = use;
-
-  /**
-   * An object that can be returned by a middleware to signify
-   * that the middleware is being terminated.
-   *
-   * @type {object}
-   * @property {object} middleware.TERMINATOR
-   */
-  Object.defineProperty(videojs, 'middleware', {
-    value: {},
-    writeable: false,
-    enumerable: true
-  });
-  Object.defineProperty(videojs.middleware, 'TERMINATOR', {
-    value: TERMINATOR,
-    writeable: false,
-    enumerable: true
-  });
-
-  /**
-   * A reference to the {@link module:browser|browser utility module} as an object.
-   *
-   * @type {Object}
-   * @see  {@link module:browser|browser}
-   */
-  videojs.browser = browser;
-
-  /**
-   * A reference to the {@link module:obj|obj utility module} as an object.
-   *
-   * @type {Object}
-   * @see  {@link module:obj|obj}
-   */
-  videojs.obj = Obj;
-
-  /**
-   * Deprecated reference to the {@link module:obj.merge|merge function}
-   *
-   * @type {Function}
-   * @see {@link module:obj.merge|merge}
-   * @deprecated Deprecated and will be removed in 9.0. Please use videojs.obj.merge instead.
-   */
-  videojs.mergeOptions = deprecateForMajor(9, 'videojs.mergeOptions', 'videojs.obj.merge', merge$2);
-
-  /**
-   * Deprecated reference to the {@link module:obj.defineLazyProperty|defineLazyProperty function}
-   *
-   * @type {Function}
-   * @see {@link module:obj.defineLazyProperty|defineLazyProperty}
-   * @deprecated Deprecated and will be removed in 9.0. Please use videojs.obj.defineLazyProperty instead.
-   */
-  videojs.defineLazyProperty = deprecateForMajor(9, 'videojs.defineLazyProperty', 'videojs.obj.defineLazyProperty', defineLazyProperty);
-
-  /**
-   * Deprecated reference to the {@link module:fn.bind_|fn.bind_ function}
-   *
-   * @type {Function}
-   * @see {@link module:fn.bind_|fn.bind_}
-   * @deprecated Deprecated and will be removed in 9.0. Please use native Function.prototype.bind instead.
-   */
-  videojs.bind = deprecateForMajor(9, 'videojs.bind', 'native Function.prototype.bind', bind_);
-  videojs.registerPlugin = Plugin.registerPlugin;
-  videojs.deregisterPlugin = Plugin.deregisterPlugin;
-
-  /**
-   * Deprecated method to register a plugin with Video.js
-   *
-   * @deprecated Deprecated and will be removed in 9.0. Use videojs.registerPlugin() instead.
-   *
-   * @param {string} name
-   *        The plugin name
-  *
-   * @param {typeof Plugin|Function} plugin
-   *         The plugin sub-class or function
-   *
-   * @return {typeof Plugin|Function}
-   */
-  videojs.plugin = (name, plugin) => {
-    log$1.warn('videojs.plugin() is deprecated; use videojs.registerPlugin() instead');
-    return Plugin.registerPlugin(name, plugin);
-  };
-  videojs.getPlugins = Plugin.getPlugins;
-  videojs.getPlugin = Plugin.getPlugin;
-  videojs.getPluginVersion = Plugin.getPluginVersion;
-
-  /**
-   * Adding languages so that they're available to all players.
-   * Example: `videojs.addLanguage('es', { 'Hello': 'Hola' });`
-   *
-   * @param {string} code
-   *        The language code or dictionary property
-   *
-   * @param {Object} data
-   *        The data values to be translated
-   *
-   * @return {Object}
-   *         The resulting language dictionary object
-   */
-  videojs.addLanguage = function (code, data) {
-    code = ('' + code).toLowerCase();
-    videojs.options.languages = merge$2(videojs.options.languages, {
-      [code]: data
-    });
-    return videojs.options.languages[code];
-  };
-
-  /**
-   * A reference to the {@link module:log|log utility module} as an object.
-   *
-   * @type {Function}
-   * @see  {@link module:log|log}
-   */
-  videojs.log = log$1;
-  videojs.createLogger = createLogger;
-
-  /**
-   * A reference to the {@link module:time|time utility module} as an object.
-   *
-   * @type {Object}
-   * @see {@link module:time|time}
-   */
-  videojs.time = Time;
-
-  /**
-   * Deprecated reference to the {@link module:time.createTimeRanges|createTimeRanges function}
-   *
-   * @type {Function}
-   * @see {@link module:time.createTimeRanges|createTimeRanges}
-   * @deprecated Deprecated and will be removed in 9.0. Please use videojs.time.createTimeRanges instead.
-   */
-  videojs.createTimeRange = deprecateForMajor(9, 'videojs.createTimeRange', 'videojs.time.createTimeRanges', createTimeRanges$1);
-
-  /**
-   * Deprecated reference to the {@link module:time.createTimeRanges|createTimeRanges function}
-   *
-   * @type {Function}
-   * @see {@link module:time.createTimeRanges|createTimeRanges}
-   * @deprecated Deprecated and will be removed in 9.0. Please use videojs.time.createTimeRanges instead.
-   */
-  videojs.createTimeRanges = deprecateForMajor(9, 'videojs.createTimeRanges', 'videojs.time.createTimeRanges', createTimeRanges$1);
-
-  /**
-   * Deprecated reference to the {@link module:time.formatTime|formatTime function}
-   *
-   * @type {Function}
-   * @see {@link module:time.formatTime|formatTime}
-   * @deprecated Deprecated and will be removed in 9.0. Please use videojs.time.format instead.
-   */
-  videojs.formatTime = deprecateForMajor(9, 'videojs.formatTime', 'videojs.time.formatTime', formatTime);
-
-  /**
-   * Deprecated reference to the {@link module:time.setFormatTime|setFormatTime function}
-   *
-   * @type {Function}
-   * @see {@link module:time.setFormatTime|setFormatTime}
-   * @deprecated Deprecated and will be removed in 9.0. Please use videojs.time.setFormat instead.
-   */
-  videojs.setFormatTime = deprecateForMajor(9, 'videojs.setFormatTime', 'videojs.time.setFormatTime', setFormatTime);
-
-  /**
-   * Deprecated reference to the {@link module:time.resetFormatTime|resetFormatTime function}
-   *
-   * @type {Function}
-   * @see {@link module:time.resetFormatTime|resetFormatTime}
-   * @deprecated Deprecated and will be removed in 9.0. Please use videojs.time.resetFormat instead.
-   */
-  videojs.resetFormatTime = deprecateForMajor(9, 'videojs.resetFormatTime', 'videojs.time.resetFormatTime', resetFormatTime);
-
-  /**
-   * Deprecated reference to the {@link module:url.parseUrl|Url.parseUrl function}
-   *
-   * @type {Function}
-   * @see {@link module:url.parseUrl|parseUrl}
-   * @deprecated Deprecated and will be removed in 9.0. Please use videojs.url.parseUrl instead.
-   */
-  videojs.parseUrl = deprecateForMajor(9, 'videojs.parseUrl', 'videojs.url.parseUrl', parseUrl);
-
-  /**
-   * Deprecated reference to the {@link module:url.isCrossOrigin|Url.isCrossOrigin function}
-   *
-   * @type {Function}
-   * @see {@link module:url.isCrossOrigin|isCrossOrigin}
-   * @deprecated Deprecated and will be removed in 9.0. Please use videojs.url.isCrossOrigin instead.
-   */
-  videojs.isCrossOrigin = deprecateForMajor(9, 'videojs.isCrossOrigin', 'videojs.url.isCrossOrigin', isCrossOrigin);
-  videojs.EventTarget = EventTarget$2;
-  videojs.any = any;
-  videojs.on = on;
-  videojs.one = one;
-  videojs.off = off;
-  videojs.trigger = trigger;
-
-  /**
-   * A cross-browser XMLHttpRequest wrapper.
-   *
-   * @function
-   * @param    {Object} options
-   *           Settings for the request.
-   *
-   * @return   {XMLHttpRequest|XDomainRequest}
-   *           The request object.
-   *
-   * @see      https://github.com/Raynos/xhr
-   */
-  videojs.xhr = lib;
-  videojs.TextTrack = TextTrack;
-  videojs.AudioTrack = AudioTrack;
-  videojs.VideoTrack = VideoTrack;
-  ['isEl', 'isTextNode', 'createEl', 'hasClass', 'addClass', 'removeClass', 'toggleClass', 'setAttributes', 'getAttributes', 'emptyEl', 'appendContent', 'insertContent'].forEach(k => {
-    videojs[k] = function () {
-      log$1.warn(`videojs.${k}() is deprecated; use videojs.dom.${k}() instead`);
-      return Dom[k].apply(null, arguments);
-    };
-  });
-  videojs.computedStyle = deprecateForMajor(9, 'videojs.computedStyle', 'videojs.dom.computedStyle', computedStyle);
-
-  /**
-   * A reference to the {@link module:dom|DOM utility module} as an object.
-   *
-   * @type {Object}
-   * @see {@link module:dom|dom}
-   */
-  videojs.dom = Dom;
-
-  /**
-   * A reference to the {@link module:fn|fn utility module} as an object.
-   *
-   * @type {Object}
-   * @see {@link module:fn|fn}
-   */
-  videojs.fn = Fn;
-
-  /**
-   * A reference to the {@link module:num|num utility module} as an object.
-   *
-   * @type {Object}
-   * @see {@link module:num|num}
-   */
-  videojs.num = Num;
-
-  /**
-   * A reference to the {@link module:str|str utility module} as an object.
-   *
-   * @type {Object}
-   * @see {@link module:str|str}
-   */
-  videojs.str = Str;
-
-  /**
-   * A reference to the {@link module:url|URL utility module} as an object.
-   *
-   * @type {Object}
-   * @see {@link module:url|url}
-   */
-  videojs.url = Url;
-
-  // The list of possible error types to occur in video.js
-  videojs.Error = VjsErrors;
-
-  createCommonjsModule(function (module, exports) {
-    /*! @name videojs-contrib-quality-levels @version 4.1.0 @license Apache-2.0 */
-    (function (global, factory) {
-      module.exports = factory(videojs) ;
-    })(commonjsGlobal, function (videojs) {
-
-      function _interopDefaultLegacy(e) {
-        return e && typeof e === 'object' && 'default' in e ? e : {
-          'default': e
-        };
-      }
-      var videojs__default = /*#__PURE__*/_interopDefaultLegacy(videojs);
-
-      /**
-       * A single QualityLevel.
-       *
-       * interface QualityLevel {
-       *   readonly attribute DOMString id;
-       *            attribute DOMString label;
-       *   readonly attribute long width;
-       *   readonly attribute long height;
-       *   readonly attribute long bitrate;
-       *            attribute boolean enabled;
-       * };
-       *
-       * @class QualityLevel
-       */
-      class QualityLevel {
-        /**
-         * Creates a QualityLevel
-         *
-         * @param {Representation|Object} representation The representation of the quality level
-         * @param {string}   representation.id        Unique id of the QualityLevel
-         * @param {number=}  representation.width     Resolution width of the QualityLevel
-         * @param {number=}  representation.height    Resolution height of the QualityLevel
-         * @param {number}   representation.bandwidth Bitrate of the QualityLevel
-         * @param {number=}  representation.frameRate Frame-rate of the QualityLevel
-         * @param {Function} representation.enabled   Callback to enable/disable QualityLevel
-         */
-        constructor(representation) {
-          let level = this; // eslint-disable-line
-
-          level.id = representation.id;
-          level.label = level.id;
-          level.width = representation.width;
-          level.height = representation.height;
-          level.bitrate = representation.bandwidth;
-          level.frameRate = representation.frameRate;
-          level.enabled_ = representation.enabled;
-          Object.defineProperty(level, 'enabled', {
-            /**
-             * Get whether the QualityLevel is enabled.
-             *
-             * @return {boolean} True if the QualityLevel is enabled.
-             */
-            get() {
-              return level.enabled_();
-            },
-            /**
-             * Enable or disable the QualityLevel.
-             *
-             * @param {boolean} enable true to enable QualityLevel, false to disable.
-             */
-            set(enable) {
-              level.enabled_(enable);
-            }
-          });
-          return level;
-        }
-      }
-
-      /**
-       * A list of QualityLevels.
-       *
-       * interface QualityLevelList : EventTarget {
-       *   getter QualityLevel (unsigned long index);
-       *   readonly attribute unsigned long length;
-       *   readonly attribute long selectedIndex;
-       *
-       *   void addQualityLevel(QualityLevel qualityLevel)
-       *   void removeQualityLevel(QualityLevel remove)
-       *   QualityLevel? getQualityLevelById(DOMString id);
-       *
-       *   attribute EventHandler onchange;
-       *   attribute EventHandler onaddqualitylevel;
-       *   attribute EventHandler onremovequalitylevel;
-       * };
-       *
-       * @extends videojs.EventTarget
-       * @class QualityLevelList
-       */
-      class QualityLevelList extends videojs__default["default"].EventTarget {
-        /**
-         * Creates a QualityLevelList.
-         */
-        constructor() {
-          super();
-          let list = this; // eslint-disable-line
-
-          list.levels_ = [];
-          list.selectedIndex_ = -1;
-
-          /**
-           * Get the index of the currently selected QualityLevel.
-           *
-           * @returns {number} The index of the selected QualityLevel. -1 if none selected.
-           * @readonly
-           */
-          Object.defineProperty(list, 'selectedIndex', {
-            get() {
-              return list.selectedIndex_;
-            }
-          });
-
-          /**
-           * Get the length of the list of QualityLevels.
-           *
-           * @returns {number} The length of the list.
-           * @readonly
-           */
-          Object.defineProperty(list, 'length', {
-            get() {
-              return list.levels_.length;
-            }
-          });
-          list[Symbol.iterator] = () => list.levels_.values();
-          return list;
-        }
-
-        /**
-         * Adds a quality level to the list.
-         *
-         * @param {Representation|Object} representation The representation of the quality level
-         * @param {string}   representation.id        Unique id of the QualityLevel
-         * @param {number=}  representation.width     Resolution width of the QualityLevel
-         * @param {number=}  representation.height    Resolution height of the QualityLevel
-         * @param {number}   representation.bandwidth Bitrate of the QualityLevel
-         * @param {number=}  representation.frameRate Frame-rate of the QualityLevel
-         * @param {Function} representation.enabled   Callback to enable/disable QualityLevel
-         * @return {QualityLevel} the QualityLevel added to the list
-         * @method addQualityLevel
-         */
-        addQualityLevel(representation) {
-          let qualityLevel = this.getQualityLevelById(representation.id);
-
-          // Do not add duplicate quality levels
-          if (qualityLevel) {
-            return qualityLevel;
-          }
-          const index = this.levels_.length;
-          qualityLevel = new QualityLevel(representation);
-          if (!('' + index in this)) {
-            Object.defineProperty(this, index, {
-              get() {
-                return this.levels_[index];
-              }
-            });
-          }
-          this.levels_.push(qualityLevel);
-          this.trigger({
-            qualityLevel,
-            type: 'addqualitylevel'
-          });
-          return qualityLevel;
-        }
-
-        /**
-         * Removes a quality level from the list.
-         *
-         * @param {QualityLevel} qualityLevel The QualityLevel to remove from the list.
-         * @return {QualityLevel|null} the QualityLevel removed or null if nothing removed
-         * @method removeQualityLevel
-         */
-        removeQualityLevel(qualityLevel) {
-          let removed = null;
-          for (let i = 0, l = this.length; i < l; i++) {
-            if (this[i] === qualityLevel) {
-              removed = this.levels_.splice(i, 1)[0];
-              if (this.selectedIndex_ === i) {
-                this.selectedIndex_ = -1;
-              } else if (this.selectedIndex_ > i) {
-                this.selectedIndex_--;
-              }
-              break;
-            }
-          }
-          if (removed) {
-            this.trigger({
-              qualityLevel,
-              type: 'removequalitylevel'
-            });
-          }
-          return removed;
-        }
-
-        /**
-         * Searches for a QualityLevel with the given id.
-         *
-         * @param {string} id The id of the QualityLevel to find.
-         * @return {QualityLevel|null} The QualityLevel with id, or null if not found.
-         * @method getQualityLevelById
-         */
-        getQualityLevelById(id) {
-          for (let i = 0, l = this.length; i < l; i++) {
-            const level = this[i];
-            if (level.id === id) {
-              return level;
-            }
-          }
-          return null;
-        }
-
-        /**
-         * Resets the list of QualityLevels to empty
-         *
-         * @method dispose
-         */
-        dispose() {
-          this.selectedIndex_ = -1;
-          this.levels_.length = 0;
-        }
-      }
-
-      /**
-       * change - The selected QualityLevel has changed.
-       * addqualitylevel - A QualityLevel has been added to the QualityLevelList.
-       * removequalitylevel - A QualityLevel has been removed from the QualityLevelList.
-       */
-      QualityLevelList.prototype.allowedEvents_ = {
-        change: 'change',
-        addqualitylevel: 'addqualitylevel',
-        removequalitylevel: 'removequalitylevel'
-      };
-
-      // emulate attribute EventHandler support to allow for feature detection
-      for (const event in QualityLevelList.prototype.allowedEvents_) {
-        QualityLevelList.prototype['on' + event] = null;
-      }
-      var version = "4.1.0";
-
-      /**
-       * Initialization function for the qualityLevels plugin. Sets up the QualityLevelList and
-       * event handlers.
-       *
-       * @param {Player} player Player object.
-       * @param {Object} options Plugin options object.
-       * @return {QualityLevelList} a list of QualityLevels
-       */
-      const initPlugin = function (player, options) {
-        const originalPluginFn = player.qualityLevels;
-        const qualityLevelList = new QualityLevelList();
-        const disposeHandler = function () {
-          qualityLevelList.dispose();
-          player.qualityLevels = originalPluginFn;
-          player.off('dispose', disposeHandler);
-        };
-        player.on('dispose', disposeHandler);
-        player.qualityLevels = () => qualityLevelList;
-        player.qualityLevels.VERSION = version;
-        return qualityLevelList;
-      };
-
-      /**
-       * A video.js plugin.
-       *
-       * In the plugin function, the value of `this` is a video.js `Player`
-       * instance. You cannot rely on the player being in a "ready" state here,
-       * depending on how the plugin is invoked. This may or may not be important
-       * to you; if not, remove the wait for "ready"!
-       *
-       * @param {Object} options Plugin options object
-       * @return {QualityLevelList} a list of QualityLevels
-       */
-      const qualityLevels = function (options) {
-        return initPlugin(this, videojs__default["default"].obj.merge({}, options));
-      };
-
-      // Register the plugin with video.js.
-      videojs__default["default"].registerPlugin('qualityLevels', qualityLevels);
-
-      // Include the version number.
-      qualityLevels.VERSION = version;
-      return qualityLevels;
-    });
-  });
-
-  var urlToolkit = createCommonjsModule(function (module, exports) {
-    // see https://tools.ietf.org/html/rfc1808
-
-    (function (root) {
-      var URL_REGEX = /^(?=((?:[a-zA-Z0-9+\-.]+:)?))\1(?=((?:\/\/[^\/?#]*)?))\2(?=((?:(?:[^?#\/]*\/)*[^;?#\/]*)?))\3((?:;[^?#]*)?)(\?[^#]*)?(#[^]*)?$/;
-      var FIRST_SEGMENT_REGEX = /^(?=([^\/?#]*))\1([^]*)$/;
-      var SLASH_DOT_REGEX = /(?:\/|^)\.(?=\/)/g;
-      var SLASH_DOT_DOT_REGEX = /(?:\/|^)\.\.\/(?!\.\.\/)[^\/]*(?=\/)/g;
-      var URLToolkit = {
-        // If opts.alwaysNormalize is true then the path will always be normalized even when it starts with / or //
-        // E.g
-        // With opts.alwaysNormalize = false (default, spec compliant)
-        // http://a.com/b/cd + /e/f/../g => http://a.com/e/f/../g
-        // With opts.alwaysNormalize = true (not spec compliant)
-        // http://a.com/b/cd + /e/f/../g => http://a.com/e/g
-        buildAbsoluteURL: function (baseURL, relativeURL, opts) {
-          opts = opts || {};
-          // remove any remaining space and CRLF
-          baseURL = baseURL.trim();
-          relativeURL = relativeURL.trim();
-          if (!relativeURL) {
-            // 2a) If the embedded URL is entirely empty, it inherits the
-            // entire base URL (i.e., is set equal to the base URL)
-            // and we are done.
-            if (!opts.alwaysNormalize) {
-              return baseURL;
-            }
-            var basePartsForNormalise = URLToolkit.parseURL(baseURL);
-            if (!basePartsForNormalise) {
-              throw new Error('Error trying to parse base URL.');
-            }
-            basePartsForNormalise.path = URLToolkit.normalizePath(basePartsForNormalise.path);
-            return URLToolkit.buildURLFromParts(basePartsForNormalise);
-          }
-          var relativeParts = URLToolkit.parseURL(relativeURL);
-          if (!relativeParts) {
-            throw new Error('Error trying to parse relative URL.');
-          }
-          if (relativeParts.scheme) {
-            // 2b) If the embedded URL starts with a scheme name, it is
-            // interpreted as an absolute URL and we are done.
-            if (!opts.alwaysNormalize) {
-              return relativeURL;
-            }
-            relativeParts.path = URLToolkit.normalizePath(relativeParts.path);
-            return URLToolkit.buildURLFromParts(relativeParts);
-          }
-          var baseParts = URLToolkit.parseURL(baseURL);
-          if (!baseParts) {
-            throw new Error('Error trying to parse base URL.');
-          }
-          if (!baseParts.netLoc && baseParts.path && baseParts.path[0] !== '/') {
-            // If netLoc missing and path doesn't start with '/', assume everthing before the first '/' is the netLoc
-            // This causes 'example.com/a' to be handled as '//example.com/a' instead of '/example.com/a'
-            var pathParts = FIRST_SEGMENT_REGEX.exec(baseParts.path);
-            baseParts.netLoc = pathParts[1];
-            baseParts.path = pathParts[2];
-          }
-          if (baseParts.netLoc && !baseParts.path) {
-            baseParts.path = '/';
-          }
-          var builtParts = {
-            // 2c) Otherwise, the embedded URL inherits the scheme of
-            // the base URL.
-            scheme: baseParts.scheme,
-            netLoc: relativeParts.netLoc,
-            path: null,
-            params: relativeParts.params,
-            query: relativeParts.query,
-            fragment: relativeParts.fragment
-          };
-          if (!relativeParts.netLoc) {
-            // 3) If the embedded URL's <net_loc> is non-empty, we skip to
-            // Step 7.  Otherwise, the embedded URL inherits the <net_loc>
-            // (if any) of the base URL.
-            builtParts.netLoc = baseParts.netLoc;
-            // 4) If the embedded URL path is preceded by a slash "/", the
-            // path is not relative and we skip to Step 7.
-            if (relativeParts.path[0] !== '/') {
-              if (!relativeParts.path) {
-                // 5) If the embedded URL path is empty (and not preceded by a
-                // slash), then the embedded URL inherits the base URL path
-                builtParts.path = baseParts.path;
-                // 5a) if the embedded URL's <params> is non-empty, we skip to
-                // step 7; otherwise, it inherits the <params> of the base
-                // URL (if any) and
-                if (!relativeParts.params) {
-                  builtParts.params = baseParts.params;
-                  // 5b) if the embedded URL's <query> is non-empty, we skip to
-                  // step 7; otherwise, it inherits the <query> of the base
-                  // URL (if any) and we skip to step 7.
-                  if (!relativeParts.query) {
-                    builtParts.query = baseParts.query;
-                  }
-                }
-              } else {
-                // 6) The last segment of the base URL's path (anything
-                // following the rightmost slash "/", or the entire path if no
-                // slash is present) is removed and the embedded URL's path is
-                // appended in its place.
-                var baseURLPath = baseParts.path;
-                var newPath = baseURLPath.substring(0, baseURLPath.lastIndexOf('/') + 1) + relativeParts.path;
-                builtParts.path = URLToolkit.normalizePath(newPath);
-              }
-            }
-          }
-          if (builtParts.path === null) {
-            builtParts.path = opts.alwaysNormalize ? URLToolkit.normalizePath(relativeParts.path) : relativeParts.path;
-          }
-          return URLToolkit.buildURLFromParts(builtParts);
-        },
-        parseURL: function (url) {
-          var parts = URL_REGEX.exec(url);
-          if (!parts) {
-            return null;
-          }
-          return {
-            scheme: parts[1] || '',
-            netLoc: parts[2] || '',
-            path: parts[3] || '',
-            params: parts[4] || '',
-            query: parts[5] || '',
-            fragment: parts[6] || ''
-          };
-        },
-        normalizePath: function (path) {
-          // The following operations are
-          // then applied, in order, to the new path:
-          // 6a) All occurrences of "./", where "." is a complete path
-          // segment, are removed.
-          // 6b) If the path ends with "." as a complete path segment,
-          // that "." is removed.
-          path = path.split('').reverse().join('').replace(SLASH_DOT_REGEX, '');
-          // 6c) All occurrences of "<segment>/../", where <segment> is a
-          // complete path segment not equal to "..", are removed.
-          // Removal of these path segments is performed iteratively,
-          // removing the leftmost matching pattern on each iteration,
-          // until no matching pattern remains.
-          // 6d) If the path ends with "<segment>/..", where <segment> is a
-          // complete path segment not equal to "..", that
-          // "<segment>/.." is removed.
-          while (path.length !== (path = path.replace(SLASH_DOT_DOT_REGEX, '')).length) {}
-          return path.split('').reverse().join('');
-        },
-        buildURLFromParts: function (parts) {
-          return parts.scheme + parts.netLoc + parts.path + parts.params + parts.query + parts.fragment;
-        }
-      };
-      module.exports = URLToolkit;
-    })();
-  });
-
-  var DEFAULT_LOCATION = 'http://example.com';
-  var resolveUrl$1 = function resolveUrl(baseUrl, relativeUrl) {
-    // return early if we don't need to resolve
-    if (/^[a-z]+:/i.test(relativeUrl)) {
-      return relativeUrl;
-    } // if baseUrl is a data URI, ignore it and resolve everything relative to window.location
-
-    if (/^data:/.test(baseUrl)) {
-      baseUrl = window.location && window.location.href || '';
-    } // IE11 supports URL but not the URL constructor
-    // feature detect the behavior we want
-
-    var nativeURL = typeof window.URL === 'function';
-    var protocolLess = /^\/\//.test(baseUrl); // remove location if window.location isn't available (i.e. we're in node)
-    // and if baseUrl isn't an absolute url
-
-    var removeLocation = !window.location && !/\/\//i.test(baseUrl); // if the base URL is relative then combine with the current location
-
-    if (nativeURL) {
-      baseUrl = new window.URL(baseUrl, window.location || DEFAULT_LOCATION);
-    } else if (!/\/\//i.test(baseUrl)) {
-      baseUrl = urlToolkit.buildAbsoluteURL(window.location && window.location.href || '', baseUrl);
-    }
-    if (nativeURL) {
-      var newUrl = new URL(relativeUrl, baseUrl); // if we're a protocol-less url, remove the protocol
-      // and if we're location-less, remove the location
-      // otherwise, return the url unmodified
-
-      if (removeLocation) {
-        return newUrl.href.slice(DEFAULT_LOCATION.length);
-      } else if (protocolLess) {
-        return newUrl.href.slice(newUrl.protocol.length);
-      }
-      return newUrl.href;
-    }
-    return urlToolkit.buildAbsoluteURL(baseUrl, relativeUrl);
-  };
-
-  /**
-   * @file stream.js
-   */
-
-  /**
-   * A lightweight readable stream implemention that handles event dispatching.
-   *
-   * @class Stream
-   */
-  var Stream = /*#__PURE__*/function () {
-    function Stream() {
-      this.listeners = {};
-    }
-    /**
-     * Add a listener for a specified event type.
-     *
-     * @param {string} type the event name
-     * @param {Function} listener the callback to be invoked when an event of
-     * the specified type occurs
-     */
-
-    var _proto = Stream.prototype;
-    _proto.on = function on(type, listener) {
-      if (!this.listeners[type]) {
-        this.listeners[type] = [];
-      }
-      this.listeners[type].push(listener);
-    }
-    /**
-     * Remove a listener for a specified event type.
-     *
-     * @param {string} type the event name
-     * @param {Function} listener  a function previously registered for this
-     * type of event through `on`
-     * @return {boolean} if we could turn it off or not
-     */;
-
-    _proto.off = function off(type, listener) {
-      if (!this.listeners[type]) {
-        return false;
-      }
-      var index = this.listeners[type].indexOf(listener); // TODO: which is better?
-      // In Video.js we slice listener functions
-      // on trigger so that it does not mess up the order
-      // while we loop through.
-      //
-      // Here we slice on off so that the loop in trigger
-      // can continue using it's old reference to loop without
-      // messing up the order.
-
-      this.listeners[type] = this.listeners[type].slice(0);
-      this.listeners[type].splice(index, 1);
-      return index > -1;
-    }
-    /**
-     * Trigger an event of the specified type on this stream. Any additional
-     * arguments to this function are passed as parameters to event listeners.
-     *
-     * @param {string} type the event name
-     */;
-
-    _proto.trigger = function trigger(type) {
-      var callbacks = this.listeners[type];
-      if (!callbacks) {
-        return;
-      } // Slicing the arguments on every invocation of this method
-      // can add a significant amount of overhead. Avoid the
-      // intermediate object creation for the common case of a
-      // single callback argument
-
-      if (arguments.length === 2) {
-        var length = callbacks.length;
-        for (var i = 0; i < length; ++i) {
-          callbacks[i].call(this, arguments[1]);
-        }
-      } else {
-        var args = Array.prototype.slice.call(arguments, 1);
-        var _length = callbacks.length;
-        for (var _i = 0; _i < _length; ++_i) {
-          callbacks[_i].apply(this, args);
-        }
-      }
-    }
-    /**
-     * Destroys the stream and cleans up.
-     */;
-
-    _proto.dispose = function dispose() {
-      this.listeners = {};
-    }
-    /**
-     * Forwards all `data` events on this stream to the destination stream. The
-     * destination stream should provide a method `push` to receive the data
-     * events as they arrive.
-     *
-     * @param {Stream} destination the stream that will receive all `data` events
-     * @see http://nodejs.org/api/stream.html#stream_readable_pipe_destination_options
-     */;
-
-    _proto.pipe = function pipe(destination) {
-      this.on('data', function (data) {
-        destination.push(data);
-      });
-    };
-    return Stream;
-  }();
-
-  var atob$1 = function atob(s) {
-    return window.atob ? window.atob(s) : Buffer.from(s, 'base64').toString('binary');
-  };
-  function decodeB64ToUint8Array$1(b64Text) {
-    var decodedString = atob$1(b64Text);
-    var array = new Uint8Array(decodedString.length);
-    for (var i = 0; i < decodedString.length; i++) {
-      array[i] = decodedString.charCodeAt(i);
-    }
-    return array;
-  }
-
-  /*! @name m3u8-parser @version 7.1.0 @license Apache-2.0 */
-
-  /**
-   * @file m3u8/line-stream.js
-   */
-  /**
-   * A stream that buffers string input and generates a `data` event for each
-   * line.
-   *
-   * @class LineStream
-   * @extends Stream
-   */
-
-  class LineStream extends Stream {
-    constructor() {
-      super();
-      this.buffer = '';
-    }
-    /**
-     * Add new data to be parsed.
-     *
-     * @param {string} data the text to process
-     */
-
-    push(data) {
-      let nextNewline;
-      this.buffer += data;
-      nextNewline = this.buffer.indexOf('\n');
-      for (; nextNewline > -1; nextNewline = this.buffer.indexOf('\n')) {
-        this.trigger('data', this.buffer.substring(0, nextNewline));
-        this.buffer = this.buffer.substring(nextNewline + 1);
-      }
-    }
-  }
-  const TAB = String.fromCharCode(0x09);
-  const parseByterange = function (byterangeString) {
-    // optionally match and capture 0+ digits before `@`
-    // optionally match and capture 0+ digits after `@`
-    const match = /([0-9.]*)?@?([0-9.]*)?/.exec(byterangeString || '');
-    const result = {};
-    if (match[1]) {
-      result.length = parseInt(match[1], 10);
-    }
-    if (match[2]) {
-      result.offset = parseInt(match[2], 10);
-    }
-    return result;
-  };
-  /**
-   * "forgiving" attribute list psuedo-grammar:
-   * attributes -> keyvalue (',' keyvalue)*
-   * keyvalue   -> key '=' value
-   * key        -> [^=]*
-   * value      -> '"' [^"]* '"' | [^,]*
-   */
-
-  const attributeSeparator = function () {
-    const key = '[^=]*';
-    const value = '"[^"]*"|[^,]*';
-    const keyvalue = '(?:' + key + ')=(?:' + value + ')';
-    return new RegExp('(?:^|,)(' + keyvalue + ')');
-  };
-  /**
-   * Parse attributes from a line given the separator
-   *
-   * @param {string} attributes the attribute line to parse
-   */
-
-  const parseAttributes$1 = function (attributes) {
-    const result = {};
-    if (!attributes) {
-      return result;
-    } // split the string using attributes as the separator
-
-    const attrs = attributes.split(attributeSeparator());
-    let i = attrs.length;
-    let attr;
-    while (i--) {
-      // filter out unmatched portions of the string
-      if (attrs[i] === '') {
-        continue;
-      } // split the key and value
-
-      attr = /([^=]*)=(.*)/.exec(attrs[i]).slice(1); // trim whitespace and remove optional quotes around the value
-
-      attr[0] = attr[0].replace(/^\s+|\s+$/g, '');
-      attr[1] = attr[1].replace(/^\s+|\s+$/g, '');
-      attr[1] = attr[1].replace(/^['"](.*)['"]$/g, '$1');
-      result[attr[0]] = attr[1];
-    }
-    return result;
-  };
-  /**
-   * A line-level M3U8 parser event stream. It expects to receive input one
-   * line at a time and performs a context-free parse of its contents. A stream
-   * interpretation of a manifest can be useful if the manifest is expected to
-   * be too large to fit comfortably into memory or the entirety of the input
-   * is not immediately available. Otherwise, it's probably much easier to work
-   * with a regular `Parser` object.
-   *
-   * Produces `data` events with an object that captures the parser's
-   * interpretation of the input. That object has a property `tag` that is one
-   * of `uri`, `comment`, or `tag`. URIs only have a single additional
-   * property, `line`, which captures the entirety of the input without
-   * interpretation. Comments similarly have a single additional property
-   * `text` which is the input without the leading `#`.
-   *
-   * Tags always have a property `tagType` which is the lower-cased version of
-   * the M3U8 directive without the `#EXT` or `#EXT-X-` prefix. For instance,
-   * `#EXT-X-MEDIA-SEQUENCE` becomes `media-sequence` when parsed. Unrecognized
-   * tags are given the tag type `unknown` and a single additional property
-   * `data` with the remainder of the input.
-   *
-   * @class ParseStream
-   * @extends Stream
-   */
-
-  class ParseStream extends Stream {
-    constructor() {
-      super();
-      this.customParsers = [];
-      this.tagMappers = [];
-    }
-    /**
-     * Parses an additional line of input.
-     *
-     * @param {string} line a single line of an M3U8 file to parse
-     */
-
-    push(line) {
-      let match;
-      let event; // strip whitespace
-
-      line = line.trim();
-      if (line.length === 0) {
-        // ignore empty lines
-        return;
-      } // URIs
-
-      if (line[0] !== '#') {
-        this.trigger('data', {
-          type: 'uri',
-          uri: line
-        });
-        return;
-      } // map tags
-
-      const newLines = this.tagMappers.reduce((acc, mapper) => {
-        const mappedLine = mapper(line); // skip if unchanged
-
-        if (mappedLine === line) {
-          return acc;
-        }
-        return acc.concat([mappedLine]);
-      }, [line]);
-      newLines.forEach(newLine => {
-        for (let i = 0; i < this.customParsers.length; i++) {
-          if (this.customParsers[i].call(this, newLine)) {
-            return;
-          }
-        } // Comments
-
-        if (newLine.indexOf('#EXT') !== 0) {
-          this.trigger('data', {
-            type: 'comment',
-            text: newLine.slice(1)
-          });
-          return;
-        } // strip off any carriage returns here so the regex matching
-        // doesn't have to account for them.
-
-        newLine = newLine.replace('\r', ''); // Tags
-
-        match = /^#EXTM3U/.exec(newLine);
-        if (match) {
-          this.trigger('data', {
-            type: 'tag',
-            tagType: 'm3u'
-          });
-          return;
-        }
-        match = /^#EXTINF:([0-9\.]*)?,?(.*)?$/.exec(newLine);
-        if (match) {
-          event = {
-            type: 'tag',
-            tagType: 'inf'
-          };
-          if (match[1]) {
-            event.duration = parseFloat(match[1]);
-          }
-          if (match[2]) {
-            event.title = match[2];
-          }
-          this.trigger('data', event);
-          return;
-        }
-        match = /^#EXT-X-TARGETDURATION:([0-9.]*)?/.exec(newLine);
-        if (match) {
-          event = {
-            type: 'tag',
-            tagType: 'targetduration'
-          };
-          if (match[1]) {
-            event.duration = parseInt(match[1], 10);
-          }
-          this.trigger('data', event);
-          return;
-        }
-        match = /^#EXT-X-VERSION:([0-9.]*)?/.exec(newLine);
-        if (match) {
-          event = {
-            type: 'tag',
-            tagType: 'version'
-          };
-          if (match[1]) {
-            event.version = parseInt(match[1], 10);
-          }
-          this.trigger('data', event);
-          return;
-        }
-        match = /^#EXT-X-MEDIA-SEQUENCE:(\-?[0-9.]*)?/.exec(newLine);
-        if (match) {
-          event = {
-            type: 'tag',
-            tagType: 'media-sequence'
-          };
-          if (match[1]) {
-            event.number = parseInt(match[1], 10);
-          }
-          this.trigger('data', event);
-          return;
-        }
-        match = /^#EXT-X-DISCONTINUITY-SEQUENCE:(\-?[0-9.]*)?/.exec(newLine);
-        if (match) {
-          event = {
-            type: 'tag',
-            tagType: 'discontinuity-sequence'
-          };
-          if (match[1]) {
-            event.number = parseInt(match[1], 10);
-          }
-          this.trigger('data', event);
-          return;
-        }
-        match = /^#EXT-X-PLAYLIST-TYPE:(.*)?$/.exec(newLine);
-        if (match) {
-          event = {
-            type: 'tag',
-            tagType: 'playlist-type'
-          };
-          if (match[1]) {
-            event.playlistType = match[1];
-          }
-          this.trigger('data', event);
-          return;
-        }
-        match = /^#EXT-X-BYTERANGE:(.*)?$/.exec(newLine);
-        if (match) {
-          event = _extends$1(parseByterange(match[1]), {
-            type: 'tag',
-            tagType: 'byterange'
-          });
-          this.trigger('data', event);
-          return;
-        }
-        match = /^#EXT-X-ALLOW-CACHE:(YES|NO)?/.exec(newLine);
-        if (match) {
-          event = {
-            type: 'tag',
-            tagType: 'allow-cache'
-          };
-          if (match[1]) {
-            event.allowed = !/NO/.test(match[1]);
-          }
-          this.trigger('data', event);
-          return;
-        }
-        match = /^#EXT-X-MAP:(.*)$/.exec(newLine);
-        if (match) {
-          event = {
-            type: 'tag',
-            tagType: 'map'
-          };
-          if (match[1]) {
-            const attributes = parseAttributes$1(match[1]);
-            if (attributes.URI) {
-              event.uri = attributes.URI;
-            }
-            if (attributes.BYTERANGE) {
-              event.byterange = parseByterange(attributes.BYTERANGE);
-            }
-          }
-          this.trigger('data', event);
-          return;
-        }
-        match = /^#EXT-X-STREAM-INF:(.*)$/.exec(newLine);
-        if (match) {
-          event = {
-            type: 'tag',
-            tagType: 'stream-inf'
-          };
-          if (match[1]) {
-            event.attributes = parseAttributes$1(match[1]);
-            if (event.attributes.RESOLUTION) {
-              const split = event.attributes.RESOLUTION.split('x');
-              const resolution = {};
-              if (split[0]) {
-                resolution.width = parseInt(split[0], 10);
-              }
-              if (split[1]) {
-                resolution.height = parseInt(split[1], 10);
-              }
-              event.attributes.RESOLUTION = resolution;
-            }
-            if (event.attributes.BANDWIDTH) {
-              event.attributes.BANDWIDTH = parseInt(event.attributes.BANDWIDTH, 10);
-            }
-            if (event.attributes['FRAME-RATE']) {
-              event.attributes['FRAME-RATE'] = parseFloat(event.attributes['FRAME-RATE']);
-            }
-            if (event.attributes['PROGRAM-ID']) {
-              event.attributes['PROGRAM-ID'] = parseInt(event.attributes['PROGRAM-ID'], 10);
-            }
-          }
-          this.trigger('data', event);
-          return;
-        }
-        match = /^#EXT-X-MEDIA:(.*)$/.exec(newLine);
-        if (match) {
-          event = {
-            type: 'tag',
-            tagType: 'media'
-          };
-          if (match[1]) {
-            event.attributes = parseAttributes$1(match[1]);
-          }
-          this.trigger('data', event);
-          return;
-        }
-        match = /^#EXT-X-ENDLIST/.exec(newLine);
-        if (match) {
-          this.trigger('data', {
-            type: 'tag',
-            tagType: 'endlist'
-          });
-          return;
-        }
-        match = /^#EXT-X-DISCONTINUITY/.exec(newLine);
-        if (match) {
-          this.trigger('data', {
-            type: 'tag',
-            tagType: 'discontinuity'
-          });
-          return;
-        }
-        match = /^#EXT-X-PROGRAM-DATE-TIME:(.*)$/.exec(newLine);
-        if (match) {
-          event = {
-            type: 'tag',
-            tagType: 'program-date-time'
-          };
-          if (match[1]) {
-            event.dateTimeString = match[1];
-            event.dateTimeObject = new Date(match[1]);
-          }
-          this.trigger('data', event);
-          return;
-        }
-        match = /^#EXT-X-KEY:(.*)$/.exec(newLine);
-        if (match) {
-          event = {
-            type: 'tag',
-            tagType: 'key'
-          };
-          if (match[1]) {
-            event.attributes = parseAttributes$1(match[1]); // parse the IV string into a Uint32Array
-
-            if (event.attributes.IV) {
-              if (event.attributes.IV.substring(0, 2).toLowerCase() === '0x') {
-                event.attributes.IV = event.attributes.IV.substring(2);
-              }
-              event.attributes.IV = event.attributes.IV.match(/.{8}/g);
-              event.attributes.IV[0] = parseInt(event.attributes.IV[0], 16);
-              event.attributes.IV[1] = parseInt(event.attributes.IV[1], 16);
-              event.attributes.IV[2] = parseInt(event.attributes.IV[2], 16);
-              event.attributes.IV[3] = parseInt(event.attributes.IV[3], 16);
-              event.attributes.IV = new Uint32Array(event.attributes.IV);
-            }
-          }
-          this.trigger('data', event);
-          return;
-        }
-        match = /^#EXT-X-START:(.*)$/.exec(newLine);
-        if (match) {
-          event = {
-            type: 'tag',
-            tagType: 'start'
-          };
-          if (match[1]) {
-            event.attributes = parseAttributes$1(match[1]);
-            event.attributes['TIME-OFFSET'] = parseFloat(event.attributes['TIME-OFFSET']);
-            event.attributes.PRECISE = /YES/.test(event.attributes.PRECISE);
-          }
-          this.trigger('data', event);
-          return;
-        }
-        match = /^#EXT-X-CUE-OUT-CONT:(.*)?$/.exec(newLine);
-        if (match) {
-          event = {
-            type: 'tag',
-            tagType: 'cue-out-cont'
-          };
-          if (match[1]) {
-            event.data = match[1];
-          } else {
-            event.data = '';
-          }
-          this.trigger('data', event);
-          return;
-        }
-        match = /^#EXT-X-CUE-OUT:(.*)?$/.exec(newLine);
-        if (match) {
-          event = {
-            type: 'tag',
-            tagType: 'cue-out'
-          };
-          if (match[1]) {
-            event.data = match[1];
-          } else {
-            event.data = '';
-          }
-          this.trigger('data', event);
-          return;
-        }
-        match = /^#EXT-X-CUE-IN:(.*)?$/.exec(newLine);
-        if (match) {
-          event = {
-            type: 'tag',
-            tagType: 'cue-in'
-          };
-          if (match[1]) {
-            event.data = match[1];
-          } else {
-            event.data = '';
-          }
-          this.trigger('data', event);
-          return;
-        }
-        match = /^#EXT-X-SKIP:(.*)$/.exec(newLine);
-        if (match && match[1]) {
-          event = {
-            type: 'tag',
-            tagType: 'skip'
-          };
-          event.attributes = parseAttributes$1(match[1]);
-          if (event.attributes.hasOwnProperty('SKIPPED-SEGMENTS')) {
-            event.attributes['SKIPPED-SEGMENTS'] = parseInt(event.attributes['SKIPPED-SEGMENTS'], 10);
-          }
-          if (event.attributes.hasOwnProperty('RECENTLY-REMOVED-DATERANGES')) {
-            event.attributes['RECENTLY-REMOVED-DATERANGES'] = event.attributes['RECENTLY-REMOVED-DATERANGES'].split(TAB);
-          }
-          this.trigger('data', event);
-          return;
-        }
-        match = /^#EXT-X-PART:(.*)$/.exec(newLine);
-        if (match && match[1]) {
-          event = {
-            type: 'tag',
-            tagType: 'part'
-          };
-          event.attributes = parseAttributes$1(match[1]);
-          ['DURATION'].forEach(function (key) {
-            if (event.attributes.hasOwnProperty(key)) {
-              event.attributes[key] = parseFloat(event.attributes[key]);
-            }
-          });
-          ['INDEPENDENT', 'GAP'].forEach(function (key) {
-            if (event.attributes.hasOwnProperty(key)) {
-              event.attributes[key] = /YES/.test(event.attributes[key]);
-            }
-          });
-          if (event.attributes.hasOwnProperty('BYTERANGE')) {
-            event.attributes.byterange = parseByterange(event.attributes.BYTERANGE);
-          }
-          this.trigger('data', event);
-          return;
-        }
-        match = /^#EXT-X-SERVER-CONTROL:(.*)$/.exec(newLine);
-        if (match && match[1]) {
-          event = {
-            type: 'tag',
-            tagType: 'server-control'
-          };
-          event.attributes = parseAttributes$1(match[1]);
-          ['CAN-SKIP-UNTIL', 'PART-HOLD-BACK', 'HOLD-BACK'].forEach(function (key) {
-            if (event.attributes.hasOwnProperty(key)) {
-              event.attributes[key] = parseFloat(event.attributes[key]);
-            }
-          });
-          ['CAN-SKIP-DATERANGES', 'CAN-BLOCK-RELOAD'].forEach(function (key) {
-            if (event.attributes.hasOwnProperty(key)) {
-              event.attributes[key] = /YES/.test(event.attributes[key]);
-            }
-          });
-          this.trigger('data', event);
-          return;
-        }
-        match = /^#EXT-X-PART-INF:(.*)$/.exec(newLine);
-        if (match && match[1]) {
-          event = {
-            type: 'tag',
-            tagType: 'part-inf'
-          };
-          event.attributes = parseAttributes$1(match[1]);
-          ['PART-TARGET'].forEach(function (key) {
-            if (event.attributes.hasOwnProperty(key)) {
-              event.attributes[key] = parseFloat(event.attributes[key]);
-            }
-          });
-          this.trigger('data', event);
-          return;
-        }
-        match = /^#EXT-X-PRELOAD-HINT:(.*)$/.exec(newLine);
-        if (match && match[1]) {
-          event = {
-            type: 'tag',
-            tagType: 'preload-hint'
-          };
-          event.attributes = parseAttributes$1(match[1]);
-          ['BYTERANGE-START', 'BYTERANGE-LENGTH'].forEach(function (key) {
-            if (event.attributes.hasOwnProperty(key)) {
-              event.attributes[key] = parseInt(event.attributes[key], 10);
-              const subkey = key === 'BYTERANGE-LENGTH' ? 'length' : 'offset';
-              event.attributes.byterange = event.attributes.byterange || {};
-              event.attributes.byterange[subkey] = event.attributes[key]; // only keep the parsed byterange object.
-
-              delete event.attributes[key];
-            }
-          });
-          this.trigger('data', event);
-          return;
-        }
-        match = /^#EXT-X-RENDITION-REPORT:(.*)$/.exec(newLine);
-        if (match && match[1]) {
-          event = {
-            type: 'tag',
-            tagType: 'rendition-report'
-          };
-          event.attributes = parseAttributes$1(match[1]);
-          ['LAST-MSN', 'LAST-PART'].forEach(function (key) {
-            if (event.attributes.hasOwnProperty(key)) {
-              event.attributes[key] = parseInt(event.attributes[key], 10);
-            }
-          });
-          this.trigger('data', event);
-          return;
-        }
-        match = /^#EXT-X-DATERANGE:(.*)$/.exec(newLine);
-        if (match && match[1]) {
-          event = {
-            type: 'tag',
-            tagType: 'daterange'
-          };
-          event.attributes = parseAttributes$1(match[1]);
-          ['ID', 'CLASS'].forEach(function (key) {
-            if (event.attributes.hasOwnProperty(key)) {
-              event.attributes[key] = String(event.attributes[key]);
-            }
-          });
-          ['START-DATE', 'END-DATE'].forEach(function (key) {
-            if (event.attributes.hasOwnProperty(key)) {
-              event.attributes[key] = new Date(event.attributes[key]);
-            }
-          });
-          ['DURATION', 'PLANNED-DURATION'].forEach(function (key) {
-            if (event.attributes.hasOwnProperty(key)) {
-              event.attributes[key] = parseFloat(event.attributes[key]);
-            }
-          });
-          ['END-ON-NEXT'].forEach(function (key) {
-            if (event.attributes.hasOwnProperty(key)) {
-              event.attributes[key] = /YES/i.test(event.attributes[key]);
-            }
-          });
-          ['SCTE35-CMD', ' SCTE35-OUT', 'SCTE35-IN'].forEach(function (key) {
-            if (event.attributes.hasOwnProperty(key)) {
-              event.attributes[key] = event.attributes[key].toString(16);
-            }
-          });
-          const clientAttributePattern = /^X-([A-Z]+-)+[A-Z]+$/;
-          for (const key in event.attributes) {
-            if (!clientAttributePattern.test(key)) {
-              continue;
-            }
-            const isHexaDecimal = /[0-9A-Fa-f]{6}/g.test(event.attributes[key]);
-            const isDecimalFloating = /^\d+(\.\d+)?$/.test(event.attributes[key]);
-            event.attributes[key] = isHexaDecimal ? event.attributes[key].toString(16) : isDecimalFloating ? parseFloat(event.attributes[key]) : String(event.attributes[key]);
-          }
-          this.trigger('data', event);
-          return;
-        }
-        match = /^#EXT-X-INDEPENDENT-SEGMENTS/.exec(newLine);
-        if (match) {
-          this.trigger('data', {
-            type: 'tag',
-            tagType: 'independent-segments'
-          });
-          return;
-        }
-        match = /^#EXT-X-CONTENT-STEERING:(.*)$/.exec(newLine);
-        if (match) {
-          event = {
-            type: 'tag',
-            tagType: 'content-steering'
-          };
-          event.attributes = parseAttributes$1(match[1]);
-          this.trigger('data', event);
-          return;
-        } // unknown tag type
-
-        this.trigger('data', {
-          type: 'tag',
-          data: newLine.slice(4)
-        });
-      });
-    }
-    /**
-     * Add a parser for custom headers
-     *
-     * @param {Object}   options              a map of options for the added parser
-     * @param {RegExp}   options.expression   a regular expression to match the custom header
-     * @param {string}   options.customType   the custom type to register to the output
-     * @param {Function} [options.dataParser] function to parse the line into an object
-     * @param {boolean}  [options.segment]    should tag data be attached to the segment object
-     */
-
-    addParser({
-      expression,
-      customType,
-      dataParser,
-      segment
-    }) {
-      if (typeof dataParser !== 'function') {
-        dataParser = line => line;
-      }
-      this.customParsers.push(line => {
-        const match = expression.exec(line);
-        if (match) {
-          this.trigger('data', {
-            type: 'custom',
-            data: dataParser(line),
-            customType,
-            segment
-          });
-          return true;
-        }
-      });
-    }
-    /**
-     * Add a custom header mapper
-     *
-     * @param {Object}   options
-     * @param {RegExp}   options.expression   a regular expression to match the custom header
-     * @param {Function} options.map          function to translate tag into a different tag
-     */
-
-    addTagMapper({
-      expression,
-      map
-    }) {
-      const mapFn = line => {
-        if (expression.test(line)) {
-          return map(line);
-        }
-        return line;
-      };
-      this.tagMappers.push(mapFn);
-    }
-  }
-  const camelCase = str => str.toLowerCase().replace(/-(\w)/g, a => a[1].toUpperCase());
-  const camelCaseKeys = function (attributes) {
-    const result = {};
-    Object.keys(attributes).forEach(function (key) {
-      result[camelCase(key)] = attributes[key];
-    });
-    return result;
-  }; // set SERVER-CONTROL hold back based upon targetDuration and partTargetDuration
-  // we need this helper because defaults are based upon targetDuration and
-  // partTargetDuration being set, but they may not be if SERVER-CONTROL appears before
-  // target durations are set.
-
-  const setHoldBack = function (manifest) {
-    const {
-      serverControl,
-      targetDuration,
-      partTargetDuration
-    } = manifest;
-    if (!serverControl) {
-      return;
-    }
-    const tag = '#EXT-X-SERVER-CONTROL';
-    const hb = 'holdBack';
-    const phb = 'partHoldBack';
-    const minTargetDuration = targetDuration && targetDuration * 3;
-    const minPartDuration = partTargetDuration && partTargetDuration * 2;
-    if (targetDuration && !serverControl.hasOwnProperty(hb)) {
-      serverControl[hb] = minTargetDuration;
-      this.trigger('info', {
-        message: `${tag} defaulting HOLD-BACK to targetDuration * 3 (${minTargetDuration}).`
-      });
-    }
-    if (minTargetDuration && serverControl[hb] < minTargetDuration) {
-      this.trigger('warn', {
-        message: `${tag} clamping HOLD-BACK (${serverControl[hb]}) to targetDuration * 3 (${minTargetDuration})`
-      });
-      serverControl[hb] = minTargetDuration;
-    } // default no part hold back to part target duration * 3
-
-    if (partTargetDuration && !serverControl.hasOwnProperty(phb)) {
-      serverControl[phb] = partTargetDuration * 3;
-      this.trigger('info', {
-        message: `${tag} defaulting PART-HOLD-BACK to partTargetDuration * 3 (${serverControl[phb]}).`
-      });
-    } // if part hold back is too small default it to part target duration * 2
-
-    if (partTargetDuration && serverControl[phb] < minPartDuration) {
-      this.trigger('warn', {
-        message: `${tag} clamping PART-HOLD-BACK (${serverControl[phb]}) to partTargetDuration * 2 (${minPartDuration}).`
-      });
-      serverControl[phb] = minPartDuration;
-    }
-  };
-  /**
-   * A parser for M3U8 files. The current interpretation of the input is
-   * exposed as a property `manifest` on parser objects. It's just two lines to
-   * create and parse a manifest once you have the contents available as a string:
-   *
-   * ```js
-   * var parser = new m3u8.Parser();
-   * parser.push(xhr.responseText);
-   * ```
-   *
-   * New input can later be applied to update the manifest object by calling
-   * `push` again.
-   *
-   * The parser attempts to create a usable manifest object even if the
-   * underlying input is somewhat nonsensical. It emits `info` and `warning`
-   * events during the parse if it encounters input that seems invalid or
-   * requires some property of the manifest object to be defaulted.
-   *
-   * @class Parser
-   * @extends Stream
-   */
-
-  class Parser extends Stream {
-    constructor() {
-      super();
-      this.lineStream = new LineStream();
-      this.parseStream = new ParseStream();
-      this.lineStream.pipe(this.parseStream);
-      this.lastProgramDateTime = null;
-      /* eslint-disable consistent-this */
-
-      const self = this;
-      /* eslint-enable consistent-this */
-
-      const uris = [];
-      let currentUri = {}; // if specified, the active EXT-X-MAP definition
-
-      let currentMap; // if specified, the active decryption key
-
-      let key;
-      let hasParts = false;
-      const noop = function () {};
-      const defaultMediaGroups = {
-        'AUDIO': {},
-        'VIDEO': {},
-        'CLOSED-CAPTIONS': {},
-        'SUBTITLES': {}
-      }; // This is the Widevine UUID from DASH IF IOP. The same exact string is
-      // used in MPDs with Widevine encrypted streams.
-
-      const widevineUuid = 'urn:uuid:edef8ba9-79d6-4ace-a3c8-27dcd51d21ed'; // group segments into numbered timelines delineated by discontinuities
-
-      let currentTimeline = 0; // the manifest is empty until the parse stream begins delivering data
-
-      this.manifest = {
-        allowCache: true,
-        discontinuityStarts: [],
-        dateRanges: [],
-        segments: []
-      }; // keep track of the last seen segment's byte range end, as segments are not required
-      // to provide the offset, in which case it defaults to the next byte after the
-      // previous segment
-
-      let lastByterangeEnd = 0; // keep track of the last seen part's byte range end.
-
-      let lastPartByterangeEnd = 0;
-      const dateRangeTags = {};
-      this.on('end', () => {
-        // only add preloadSegment if we don't yet have a uri for it.
-        // and we actually have parts/preloadHints
-        if (currentUri.uri || !currentUri.parts && !currentUri.preloadHints) {
-          return;
-        }
-        if (!currentUri.map && currentMap) {
-          currentUri.map = currentMap;
-        }
-        if (!currentUri.key && key) {
-          currentUri.key = key;
-        }
-        if (!currentUri.timeline && typeof currentTimeline === 'number') {
-          currentUri.timeline = currentTimeline;
-        }
-        this.manifest.preloadSegment = currentUri;
-      }); // update the manifest with the m3u8 entry from the parse stream
-
-      this.parseStream.on('data', function (entry) {
-        let mediaGroup;
-        let rendition;
-        ({
-          tag() {
-            // switch based on the tag type
-            (({
-              version() {
-                if (entry.version) {
-                  this.manifest.version = entry.version;
-                }
-              },
-              'allow-cache'() {
-                this.manifest.allowCache = entry.allowed;
-                if (!('allowed' in entry)) {
-                  this.trigger('info', {
-                    message: 'defaulting allowCache to YES'
-                  });
-                  this.manifest.allowCache = true;
-                }
-              },
-              byterange() {
-                const byterange = {};
-                if ('length' in entry) {
-                  currentUri.byterange = byterange;
-                  byterange.length = entry.length;
-                  if (!('offset' in entry)) {
-                    /*
-                     * From the latest spec (as of this writing):
-                     * https://tools.ietf.org/html/draft-pantos-http-live-streaming-23#section-4.3.2.2
-                     *
-                     * Same text since EXT-X-BYTERANGE's introduction in draft 7:
-                     * https://tools.ietf.org/html/draft-pantos-http-live-streaming-07#section-3.3.1)
-                     *
-                     * "If o [offset] is not present, the sub-range begins at the next byte
-                     * following the sub-range of the previous media segment."
-                     */
-                    entry.offset = lastByterangeEnd;
-                  }
-                }
-                if ('offset' in entry) {
-                  currentUri.byterange = byterange;
-                  byterange.offset = entry.offset;
-                }
-                lastByterangeEnd = byterange.offset + byterange.length;
-              },
-              endlist() {
-                this.manifest.endList = true;
-              },
-              inf() {
-                if (!('mediaSequence' in this.manifest)) {
-                  this.manifest.mediaSequence = 0;
-                  this.trigger('info', {
-                    message: 'defaulting media sequence to zero'
-                  });
-                }
-                if (!('discontinuitySequence' in this.manifest)) {
-                  this.manifest.discontinuitySequence = 0;
-                  this.trigger('info', {
-                    message: 'defaulting discontinuity sequence to zero'
-                  });
-                }
-                if (entry.title) {
-                  currentUri.title = entry.title;
-                }
-                if (entry.duration > 0) {
-                  currentUri.duration = entry.duration;
-                }
-                if (entry.duration === 0) {
-                  currentUri.duration = 0.01;
-                  this.trigger('info', {
-                    message: 'updating zero segment duration to a small value'
-                  });
-                }
-                this.manifest.segments = uris;
-              },
-              key() {
-                if (!entry.attributes) {
-                  this.trigger('warn', {
-                    message: 'ignoring key declaration without attribute list'
-                  });
-                  return;
-                } // clear the active encryption key
-
-                if (entry.attributes.METHOD === 'NONE') {
-                  key = null;
-                  return;
-                }
-                if (!entry.attributes.URI) {
-                  this.trigger('warn', {
-                    message: 'ignoring key declaration without URI'
-                  });
-                  return;
-                }
-                if (entry.attributes.KEYFORMAT === 'com.apple.streamingkeydelivery') {
-                  this.manifest.contentProtection = this.manifest.contentProtection || {}; // TODO: add full support for this.
-
-                  this.manifest.contentProtection['com.apple.fps.1_0'] = {
-                    attributes: entry.attributes
-                  };
-                  return;
-                }
-                if (entry.attributes.KEYFORMAT === 'com.microsoft.playready') {
-                  this.manifest.contentProtection = this.manifest.contentProtection || {}; // TODO: add full support for this.
-
-                  this.manifest.contentProtection['com.microsoft.playready'] = {
-                    uri: entry.attributes.URI
-                  };
-                  return;
-                } // check if the content is encrypted for Widevine
-                // Widevine/HLS spec: https://storage.googleapis.com/wvdocs/Widevine_DRM_HLS.pdf
-
-                if (entry.attributes.KEYFORMAT === widevineUuid) {
-                  const VALID_METHODS = ['SAMPLE-AES', 'SAMPLE-AES-CTR', 'SAMPLE-AES-CENC'];
-                  if (VALID_METHODS.indexOf(entry.attributes.METHOD) === -1) {
-                    this.trigger('warn', {
-                      message: 'invalid key method provided for Widevine'
-                    });
-                    return;
-                  }
-                  if (entry.attributes.METHOD === 'SAMPLE-AES-CENC') {
-                    this.trigger('warn', {
-                      message: 'SAMPLE-AES-CENC is deprecated, please use SAMPLE-AES-CTR instead'
-                    });
-                  }
-                  if (entry.attributes.URI.substring(0, 23) !== 'data:text/plain;base64,') {
-                    this.trigger('warn', {
-                      message: 'invalid key URI provided for Widevine'
-                    });
-                    return;
-                  }
-                  if (!(entry.attributes.KEYID && entry.attributes.KEYID.substring(0, 2) === '0x')) {
-                    this.trigger('warn', {
-                      message: 'invalid key ID provided for Widevine'
-                    });
-                    return;
-                  } // if Widevine key attributes are valid, store them as `contentProtection`
-                  // on the manifest to emulate Widevine tag structure in a DASH mpd
-
-                  this.manifest.contentProtection = this.manifest.contentProtection || {};
-                  this.manifest.contentProtection['com.widevine.alpha'] = {
-                    attributes: {
-                      schemeIdUri: entry.attributes.KEYFORMAT,
-                      // remove '0x' from the key id string
-                      keyId: entry.attributes.KEYID.substring(2)
-                    },
-                    // decode the base64-encoded PSSH box
-                    pssh: decodeB64ToUint8Array$1(entry.attributes.URI.split(',')[1])
-                  };
-                  return;
-                }
-                if (!entry.attributes.METHOD) {
-                  this.trigger('warn', {
-                    message: 'defaulting key method to AES-128'
-                  });
-                } // setup an encryption key for upcoming segments
-
-                key = {
-                  method: entry.attributes.METHOD || 'AES-128',
-                  uri: entry.attributes.URI
-                };
-                if (typeof entry.attributes.IV !== 'undefined') {
-                  key.iv = entry.attributes.IV;
-                }
-              },
-              'media-sequence'() {
-                if (!isFinite(entry.number)) {
-                  this.trigger('warn', {
-                    message: 'ignoring invalid media sequence: ' + entry.number
-                  });
-                  return;
-                }
-                this.manifest.mediaSequence = entry.number;
-              },
-              'discontinuity-sequence'() {
-                if (!isFinite(entry.number)) {
-                  this.trigger('warn', {
-                    message: 'ignoring invalid discontinuity sequence: ' + entry.number
-                  });
-                  return;
-                }
-                this.manifest.discontinuitySequence = entry.number;
-                currentTimeline = entry.number;
-              },
-              'playlist-type'() {
-                if (!/VOD|EVENT/.test(entry.playlistType)) {
-                  this.trigger('warn', {
-                    message: 'ignoring unknown playlist type: ' + entry.playlist
-                  });
-                  return;
-                }
-                this.manifest.playlistType = entry.playlistType;
-              },
-              map() {
-                currentMap = {};
-                if (entry.uri) {
-                  currentMap.uri = entry.uri;
-                }
-                if (entry.byterange) {
-                  currentMap.byterange = entry.byterange;
-                }
-                if (key) {
-                  currentMap.key = key;
-                }
-              },
-              'stream-inf'() {
-                this.manifest.playlists = uris;
-                this.manifest.mediaGroups = this.manifest.mediaGroups || defaultMediaGroups;
-                if (!entry.attributes) {
-                  this.trigger('warn', {
-                    message: 'ignoring empty stream-inf attributes'
-                  });
-                  return;
-                }
-                if (!currentUri.attributes) {
-                  currentUri.attributes = {};
-                }
-                _extends$1(currentUri.attributes, entry.attributes);
-              },
-              media() {
-                this.manifest.mediaGroups = this.manifest.mediaGroups || defaultMediaGroups;
-                if (!(entry.attributes && entry.attributes.TYPE && entry.attributes['GROUP-ID'] && entry.attributes.NAME)) {
-                  this.trigger('warn', {
-                    message: 'ignoring incomplete or missing media group'
-                  });
-                  return;
-                } // find the media group, creating defaults as necessary
-
-                const mediaGroupType = this.manifest.mediaGroups[entry.attributes.TYPE];
-                mediaGroupType[entry.attributes['GROUP-ID']] = mediaGroupType[entry.attributes['GROUP-ID']] || {};
-                mediaGroup = mediaGroupType[entry.attributes['GROUP-ID']]; // collect the rendition metadata
-
-                rendition = {
-                  default: /yes/i.test(entry.attributes.DEFAULT)
-                };
-                if (rendition.default) {
-                  rendition.autoselect = true;
-                } else {
-                  rendition.autoselect = /yes/i.test(entry.attributes.AUTOSELECT);
-                }
-                if (entry.attributes.LANGUAGE) {
-                  rendition.language = entry.attributes.LANGUAGE;
-                }
-                if (entry.attributes.URI) {
-                  rendition.uri = entry.attributes.URI;
-                }
-                if (entry.attributes['INSTREAM-ID']) {
-                  rendition.instreamId = entry.attributes['INSTREAM-ID'];
-                }
-                if (entry.attributes.CHARACTERISTICS) {
-                  rendition.characteristics = entry.attributes.CHARACTERISTICS;
-                }
-                if (entry.attributes.FORCED) {
-                  rendition.forced = /yes/i.test(entry.attributes.FORCED);
-                } // insert the new rendition
-
-                mediaGroup[entry.attributes.NAME] = rendition;
-              },
-              discontinuity() {
-                currentTimeline += 1;
-                currentUri.discontinuity = true;
-                this.manifest.discontinuityStarts.push(uris.length);
-              },
-              'program-date-time'() {
-                if (typeof this.manifest.dateTimeString === 'undefined') {
-                  // PROGRAM-DATE-TIME is a media-segment tag, but for backwards
-                  // compatibility, we add the first occurence of the PROGRAM-DATE-TIME tag
-                  // to the manifest object
-                  // TODO: Consider removing this in future major version
-                  this.manifest.dateTimeString = entry.dateTimeString;
-                  this.manifest.dateTimeObject = entry.dateTimeObject;
-                }
-                currentUri.dateTimeString = entry.dateTimeString;
-                currentUri.dateTimeObject = entry.dateTimeObject;
-                const {
-                  lastProgramDateTime
-                } = this;
-                this.lastProgramDateTime = new Date(entry.dateTimeString).getTime(); // We should extrapolate Program Date Time backward only during first program date time occurrence.
-                // Once we have at least one program date time point, we can always extrapolate it forward using lastProgramDateTime reference.
-
-                if (lastProgramDateTime === null) {
-                  // Extrapolate Program Date Time backward
-                  // Since it is first program date time occurrence we're assuming that
-                  // all this.manifest.segments have no program date time info
-                  this.manifest.segments.reduceRight((programDateTime, segment) => {
-                    segment.programDateTime = programDateTime - segment.duration * 1000;
-                    return segment.programDateTime;
-                  }, this.lastProgramDateTime);
-                }
-              },
-              targetduration() {
-                if (!isFinite(entry.duration) || entry.duration < 0) {
-                  this.trigger('warn', {
-                    message: 'ignoring invalid target duration: ' + entry.duration
-                  });
-                  return;
-                }
-                this.manifest.targetDuration = entry.duration;
-                setHoldBack.call(this, this.manifest);
-              },
-              start() {
-                if (!entry.attributes || isNaN(entry.attributes['TIME-OFFSET'])) {
-                  this.trigger('warn', {
-                    message: 'ignoring start declaration without appropriate attribute list'
-                  });
-                  return;
-                }
-                this.manifest.start = {
-                  timeOffset: entry.attributes['TIME-OFFSET'],
-                  precise: entry.attributes.PRECISE
-                };
-              },
-              'cue-out'() {
-                currentUri.cueOut = entry.data;
-              },
-              'cue-out-cont'() {
-                currentUri.cueOutCont = entry.data;
-              },
-              'cue-in'() {
-                currentUri.cueIn = entry.data;
-              },
-              'skip'() {
-                this.manifest.skip = camelCaseKeys(entry.attributes);
-                this.warnOnMissingAttributes_('#EXT-X-SKIP', entry.attributes, ['SKIPPED-SEGMENTS']);
-              },
-              'part'() {
-                hasParts = true; // parts are always specifed before a segment
-
-                const segmentIndex = this.manifest.segments.length;
-                const part = camelCaseKeys(entry.attributes);
-                currentUri.parts = currentUri.parts || [];
-                currentUri.parts.push(part);
-                if (part.byterange) {
-                  if (!part.byterange.hasOwnProperty('offset')) {
-                    part.byterange.offset = lastPartByterangeEnd;
-                  }
-                  lastPartByterangeEnd = part.byterange.offset + part.byterange.length;
-                }
-                const partIndex = currentUri.parts.length - 1;
-                this.warnOnMissingAttributes_(`#EXT-X-PART #${partIndex} for segment #${segmentIndex}`, entry.attributes, ['URI', 'DURATION']);
-                if (this.manifest.renditionReports) {
-                  this.manifest.renditionReports.forEach((r, i) => {
-                    if (!r.hasOwnProperty('lastPart')) {
-                      this.trigger('warn', {
-                        message: `#EXT-X-RENDITION-REPORT #${i} lacks required attribute(s): LAST-PART`
-                      });
-                    }
-                  });
-                }
-              },
-              'server-control'() {
-                const attrs = this.manifest.serverControl = camelCaseKeys(entry.attributes);
-                if (!attrs.hasOwnProperty('canBlockReload')) {
-                  attrs.canBlockReload = false;
-                  this.trigger('info', {
-                    message: '#EXT-X-SERVER-CONTROL defaulting CAN-BLOCK-RELOAD to false'
-                  });
-                }
-                setHoldBack.call(this, this.manifest);
-                if (attrs.canSkipDateranges && !attrs.hasOwnProperty('canSkipUntil')) {
-                  this.trigger('warn', {
-                    message: '#EXT-X-SERVER-CONTROL lacks required attribute CAN-SKIP-UNTIL which is required when CAN-SKIP-DATERANGES is set'
-                  });
-                }
-              },
-              'preload-hint'() {
-                // parts are always specifed before a segment
-                const segmentIndex = this.manifest.segments.length;
-                const hint = camelCaseKeys(entry.attributes);
-                const isPart = hint.type && hint.type === 'PART';
-                currentUri.preloadHints = currentUri.preloadHints || [];
-                currentUri.preloadHints.push(hint);
-                if (hint.byterange) {
-                  if (!hint.byterange.hasOwnProperty('offset')) {
-                    // use last part byterange end or zero if not a part.
-                    hint.byterange.offset = isPart ? lastPartByterangeEnd : 0;
-                    if (isPart) {
-                      lastPartByterangeEnd = hint.byterange.offset + hint.byterange.length;
-                    }
-                  }
-                }
-                const index = currentUri.preloadHints.length - 1;
-                this.warnOnMissingAttributes_(`#EXT-X-PRELOAD-HINT #${index} for segment #${segmentIndex}`, entry.attributes, ['TYPE', 'URI']);
-                if (!hint.type) {
-                  return;
-                } // search through all preload hints except for the current one for
-                // a duplicate type.
-
-                for (let i = 0; i < currentUri.preloadHints.length - 1; i++) {
-                  const otherHint = currentUri.preloadHints[i];
-                  if (!otherHint.type) {
-                    continue;
-                  }
-                  if (otherHint.type === hint.type) {
-                    this.trigger('warn', {
-                      message: `#EXT-X-PRELOAD-HINT #${index} for segment #${segmentIndex} has the same TYPE ${hint.type} as preload hint #${i}`
-                    });
-                  }
-                }
-              },
-              'rendition-report'() {
-                const report = camelCaseKeys(entry.attributes);
-                this.manifest.renditionReports = this.manifest.renditionReports || [];
-                this.manifest.renditionReports.push(report);
-                const index = this.manifest.renditionReports.length - 1;
-                const required = ['LAST-MSN', 'URI'];
-                if (hasParts) {
-                  required.push('LAST-PART');
-                }
-                this.warnOnMissingAttributes_(`#EXT-X-RENDITION-REPORT #${index}`, entry.attributes, required);
-              },
-              'part-inf'() {
-                this.manifest.partInf = camelCaseKeys(entry.attributes);
-                this.warnOnMissingAttributes_('#EXT-X-PART-INF', entry.attributes, ['PART-TARGET']);
-                if (this.manifest.partInf.partTarget) {
-                  this.manifest.partTargetDuration = this.manifest.partInf.partTarget;
-                }
-                setHoldBack.call(this, this.manifest);
-              },
-              'daterange'() {
-                this.manifest.dateRanges.push(camelCaseKeys(entry.attributes));
-                const index = this.manifest.dateRanges.length - 1;
-                this.warnOnMissingAttributes_(`#EXT-X-DATERANGE #${index}`, entry.attributes, ['ID', 'START-DATE']);
-                const dateRange = this.manifest.dateRanges[index];
-                if (dateRange.endDate && dateRange.startDate && new Date(dateRange.endDate) < new Date(dateRange.startDate)) {
-                  this.trigger('warn', {
-                    message: 'EXT-X-DATERANGE END-DATE must be equal to or later than the value of the START-DATE'
-                  });
-                }
-                if (dateRange.duration && dateRange.duration < 0) {
-                  this.trigger('warn', {
-                    message: 'EXT-X-DATERANGE DURATION must not be negative'
-                  });
-                }
-                if (dateRange.plannedDuration && dateRange.plannedDuration < 0) {
-                  this.trigger('warn', {
-                    message: 'EXT-X-DATERANGE PLANNED-DURATION must not be negative'
-                  });
-                }
-                const endOnNextYes = !!dateRange.endOnNext;
-                if (endOnNextYes && !dateRange.class) {
-                  this.trigger('warn', {
-                    message: 'EXT-X-DATERANGE with an END-ON-NEXT=YES attribute must have a CLASS attribute'
-                  });
-                }
-                if (endOnNextYes && (dateRange.duration || dateRange.endDate)) {
-                  this.trigger('warn', {
-                    message: 'EXT-X-DATERANGE with an END-ON-NEXT=YES attribute must not contain DURATION or END-DATE attributes'
-                  });
-                }
-                if (dateRange.duration && dateRange.endDate) {
-                  const startDate = dateRange.startDate;
-                  const newDateInSeconds = startDate.getTime() + dateRange.duration * 1000;
-                  this.manifest.dateRanges[index].endDate = new Date(newDateInSeconds);
-                }
-                if (!dateRangeTags[dateRange.id]) {
-                  dateRangeTags[dateRange.id] = dateRange;
-                } else {
-                  for (const attribute in dateRangeTags[dateRange.id]) {
-                    if (!!dateRange[attribute] && JSON.stringify(dateRangeTags[dateRange.id][attribute]) !== JSON.stringify(dateRange[attribute])) {
-                      this.trigger('warn', {
-                        message: 'EXT-X-DATERANGE tags with the same ID in a playlist must have the same attributes values'
-                      });
-                      break;
-                    }
-                  } // if tags with the same ID do not have conflicting attributes, merge them
-
-                  const dateRangeWithSameId = this.manifest.dateRanges.findIndex(dateRangeToFind => dateRangeToFind.id === dateRange.id);
-                  this.manifest.dateRanges[dateRangeWithSameId] = _extends$1(this.manifest.dateRanges[dateRangeWithSameId], dateRange);
-                  dateRangeTags[dateRange.id] = _extends$1(dateRangeTags[dateRange.id], dateRange); // after merging, delete the duplicate dateRange that was added last
-
-                  this.manifest.dateRanges.pop();
-                }
-              },
-              'independent-segments'() {
-                this.manifest.independentSegments = true;
-              },
-              'content-steering'() {
-                this.manifest.contentSteering = camelCaseKeys(entry.attributes);
-                this.warnOnMissingAttributes_('#EXT-X-CONTENT-STEERING', entry.attributes, ['SERVER-URI']);
-              }
-            })[entry.tagType] || noop).call(self);
-          },
-          uri() {
-            currentUri.uri = entry.uri;
-            uris.push(currentUri); // if no explicit duration was declared, use the target duration
-
-            if (this.manifest.targetDuration && !('duration' in currentUri)) {
-              this.trigger('warn', {
-                message: 'defaulting segment duration to the target duration'
-              });
-              currentUri.duration = this.manifest.targetDuration;
-            } // annotate with encryption information, if necessary
-
-            if (key) {
-              currentUri.key = key;
-            }
-            currentUri.timeline = currentTimeline; // annotate with initialization segment information, if necessary
-
-            if (currentMap) {
-              currentUri.map = currentMap;
-            } // reset the last byterange end as it needs to be 0 between parts
-
-            lastPartByterangeEnd = 0; // Once we have at least one program date time we can always extrapolate it forward
-
-            if (this.lastProgramDateTime !== null) {
-              currentUri.programDateTime = this.lastProgramDateTime;
-              this.lastProgramDateTime += currentUri.duration * 1000;
-            } // prepare for the next URI
-
-            currentUri = {};
-          },
-          comment() {// comments are not important for playback
-          },
-          custom() {
-            // if this is segment-level data attach the output to the segment
-            if (entry.segment) {
-              currentUri.custom = currentUri.custom || {};
-              currentUri.custom[entry.customType] = entry.data; // if this is manifest-level data attach to the top level manifest object
-            } else {
-              this.manifest.custom = this.manifest.custom || {};
-              this.manifest.custom[entry.customType] = entry.data;
-            }
-          }
-        })[entry.type].call(self);
-      });
-    }
-    warnOnMissingAttributes_(identifier, attributes, required) {
-      const missing = [];
-      required.forEach(function (key) {
-        if (!attributes.hasOwnProperty(key)) {
-          missing.push(key);
-        }
-      });
-      if (missing.length) {
-        this.trigger('warn', {
-          message: `${identifier} lacks required attribute(s): ${missing.join(', ')}`
-        });
-      }
-    }
-    /**
-     * Parse the input string and update the manifest object.
-     *
-     * @param {string} chunk a potentially incomplete portion of the manifest
-     */
-
-    push(chunk) {
-      this.lineStream.push(chunk);
-    }
-    /**
-     * Flush any remaining input. This can be handy if the last line of an M3U8
-     * manifest did not contain a trailing newline but the file has been
-     * completely received.
-     */
-
-    end() {
-      // flush any buffered input
-      this.lineStream.push('\n');
-      if (this.manifest.dateRanges.length && this.lastProgramDateTime === null) {
-        this.trigger('warn', {
-          message: 'A playlist with EXT-X-DATERANGE tag must contain atleast one EXT-X-PROGRAM-DATE-TIME tag'
-        });
-      }
-      this.lastProgramDateTime = null;
-      this.trigger('end');
-    }
-    /**
-     * Add an additional parser for non-standard tags
-     *
-     * @param {Object}   options              a map of options for the added parser
-     * @param {RegExp}   options.expression   a regular expression to match the custom header
-     * @param {string}   options.customType   the custom type to register to the output
-     * @param {Function} [options.dataParser] function to parse the line into an object
-     * @param {boolean}  [options.segment]    should tag data be attached to the segment object
-     */
-
-    addParser(options) {
-      this.parseStream.addParser(options);
-    }
-    /**
-     * Add a custom header mapper
-     *
-     * @param {Object}   options
-     * @param {RegExp}   options.expression   a regular expression to match the custom header
-     * @param {Function} options.map          function to translate tag into a different tag
-     */
-
-    addTagMapper(options) {
-      this.parseStream.addTagMapper(options);
-    }
-  }
-
-  var regexs = {
-    // to determine mime types
-    mp4: /^(av0?1|avc0?[1234]|vp0?9|flac|opus|mp3|mp4a|mp4v|stpp.ttml.im1t)/,
-    webm: /^(vp0?[89]|av0?1|opus|vorbis)/,
-    ogg: /^(vp0?[89]|theora|flac|opus|vorbis)/,
-    // to determine if a codec is audio or video
-    video: /^(av0?1|avc0?[1234]|vp0?[89]|hvc1|hev1|theora|mp4v)/,
-    audio: /^(mp4a|flac|vorbis|opus|ac-[34]|ec-3|alac|mp3|speex|aac)/,
-    text: /^(stpp.ttml.im1t)/,
-    // mux.js support regex
-    muxerVideo: /^(avc0?1)/,
-    muxerAudio: /^(mp4a)/,
-    // match nothing as muxer does not support text right now.
-    // there cannot never be a character before the start of a string
-    // so this matches nothing.
-    muxerText: /a^/
-  };
-  var mediaTypes = ['video', 'audio', 'text'];
-  var upperMediaTypes = ['Video', 'Audio', 'Text'];
-  /**
-   * Replace the old apple-style `avc1.<dd>.<dd>` codec string with the standard
-   * `avc1.<hhhhhh>`
-   *
-   * @param {string} codec
-   *        Codec string to translate
-   * @return {string}
-   *         The translated codec string
-   */
-
-  var translateLegacyCodec = function translateLegacyCodec(codec) {
-    if (!codec) {
-      return codec;
-    }
-    return codec.replace(/avc1\.(\d+)\.(\d+)/i, function (orig, profile, avcLevel) {
-      var profileHex = ('00' + Number(profile).toString(16)).slice(-2);
-      var avcLevelHex = ('00' + Number(avcLevel).toString(16)).slice(-2);
-      return 'avc1.' + profileHex + '00' + avcLevelHex;
-    });
-  };
-  /**
-   * @typedef {Object} ParsedCodecInfo
-   * @property {number} codecCount
-   *           Number of codecs parsed
-   * @property {string} [videoCodec]
-   *           Parsed video codec (if found)
-   * @property {string} [videoObjectTypeIndicator]
-   *           Video object type indicator (if found)
-   * @property {string|null} audioProfile
-   *           Audio profile
-   */
-
-  /**
-   * Parses a codec string to retrieve the number of codecs specified, the video codec and
-   * object type indicator, and the audio profile.
-   *
-   * @param {string} [codecString]
-   *        The codec string to parse
-   * @return {ParsedCodecInfo}
-   *         Parsed codec info
-   */
-
-  var parseCodecs = function parseCodecs(codecString) {
-    if (codecString === void 0) {
-      codecString = '';
-    }
-    var codecs = codecString.split(',');
-    var result = [];
-    codecs.forEach(function (codec) {
-      codec = codec.trim();
-      var codecType;
-      mediaTypes.forEach(function (name) {
-        var match = regexs[name].exec(codec.toLowerCase());
-        if (!match || match.length <= 1) {
-          return;
-        }
-        codecType = name; // maintain codec case
-
-        var type = codec.substring(0, match[1].length);
-        var details = codec.replace(type, '');
-        result.push({
-          type: type,
-          details: details,
-          mediaType: name
-        });
-      });
-      if (!codecType) {
-        result.push({
-          type: codec,
-          details: '',
-          mediaType: 'unknown'
-        });
-      }
-    });
-    return result;
-  };
-  /**
-   * Returns a ParsedCodecInfo object for the default alternate audio playlist if there is
-   * a default alternate audio playlist for the provided audio group.
-   *
-   * @param {Object} master
-   *        The master playlist
-   * @param {string} audioGroupId
-   *        ID of the audio group for which to find the default codec info
-   * @return {ParsedCodecInfo}
-   *         Parsed codec info
-   */
-
-  var codecsFromDefault = function codecsFromDefault(master, audioGroupId) {
-    if (!master.mediaGroups.AUDIO || !audioGroupId) {
-      return null;
-    }
-    var audioGroup = master.mediaGroups.AUDIO[audioGroupId];
-    if (!audioGroup) {
-      return null;
-    }
-    for (var name in audioGroup) {
-      var audioType = audioGroup[name];
-      if (audioType.default && audioType.playlists) {
-        // codec should be the same for all playlists within the audio type
-        return parseCodecs(audioType.playlists[0].attributes.CODECS);
-      }
-    }
-    return null;
-  };
-  var isAudioCodec = function isAudioCodec(codec) {
-    if (codec === void 0) {
-      codec = '';
-    }
-    return regexs.audio.test(codec.trim().toLowerCase());
-  };
-  var isTextCodec = function isTextCodec(codec) {
-    if (codec === void 0) {
-      codec = '';
-    }
-    return regexs.text.test(codec.trim().toLowerCase());
-  };
-  var getMimeForCodec = function getMimeForCodec(codecString) {
-    if (!codecString || typeof codecString !== 'string') {
-      return;
-    }
-    var codecs = codecString.toLowerCase().split(',').map(function (c) {
-      return translateLegacyCodec(c.trim());
-    }); // default to video type
-
-    var type = 'video'; // only change to audio type if the only codec we have is
-    // audio
-
-    if (codecs.length === 1 && isAudioCodec(codecs[0])) {
-      type = 'audio';
-    } else if (codecs.length === 1 && isTextCodec(codecs[0])) {
-      // text uses application/<container> for now
-      type = 'application';
-    } // default the container to mp4
-
-    var container = 'mp4'; // every codec must be able to go into the container
-    // for that container to be the correct one
-
-    if (codecs.every(function (c) {
-      return regexs.mp4.test(c);
-    })) {
-      container = 'mp4';
-    } else if (codecs.every(function (c) {
-      return regexs.webm.test(c);
-    })) {
-      container = 'webm';
-    } else if (codecs.every(function (c) {
-      return regexs.ogg.test(c);
-    })) {
-      container = 'ogg';
-    }
-    return type + "/" + container + ";codecs=\"" + codecString + "\"";
-  };
-  var browserSupportsCodec = function browserSupportsCodec(codecString) {
-    if (codecString === void 0) {
-      codecString = '';
-    }
-    return window.MediaSource && window.MediaSource.isTypeSupported && window.MediaSource.isTypeSupported(getMimeForCodec(codecString)) || false;
-  };
-  var muxerSupportsCodec = function muxerSupportsCodec(codecString) {
-    if (codecString === void 0) {
-      codecString = '';
-    }
-    return codecString.toLowerCase().split(',').every(function (codec) {
-      codec = codec.trim(); // any match is supported.
-
-      for (var i = 0; i < upperMediaTypes.length; i++) {
-        var type = upperMediaTypes[i];
-        if (regexs["muxer" + type].test(codec)) {
-          return true;
-        }
-      }
-      return false;
-    });
-  };
-  var DEFAULT_AUDIO_CODEC = 'mp4a.40.2';
-  var DEFAULT_VIDEO_CODEC = 'avc1.4d400d';
-
-  var MPEGURL_REGEX = /^(audio|video|application)\/(x-|vnd\.apple\.)?mpegurl/i;
-  var DASH_REGEX = /^application\/dash\+xml/i;
-  /**
-   * Returns a string that describes the type of source based on a video source object's
-   * media type.
-   *
-   * @see {@link https://dev.w3.org/html5/pf-summary/video.html#dom-source-type|Source Type}
-   *
-   * @param {string} type
-   *        Video source object media type
-   * @return {('hls'|'dash'|'vhs-json'|null)}
-   *         VHS source type string
-   */
-
-  var simpleTypeFromSourceType = function simpleTypeFromSourceType(type) {
-    if (MPEGURL_REGEX.test(type)) {
-      return 'hls';
-    }
-    if (DASH_REGEX.test(type)) {
-      return 'dash';
-    } // Denotes the special case of a manifest object passed to http-streaming instead of a
-    // source URL.
-    //
-    // See https://en.wikipedia.org/wiki/Media_type for details on specifying media types.
-    //
-    // In this case, vnd stands for vendor, video.js for the organization, VHS for this
-    // project, and the +json suffix identifies the structure of the media type.
-
-    if (type === 'application/vnd.videojs.vhs+json') {
-      return 'vhs-json';
-    }
-    return null;
-  };
-
-  // const log2 = Math.log2 ? Math.log2 : (x) => (Math.log(x) / Math.log(2));
-  // we used to do this with log2 but BigInt does not support builtin math
-  // Math.ceil(log2(x));
-
-  var countBits = function countBits(x) {
-    return x.toString(2).length;
-  }; // count the number of whole bytes it would take to represent a number
-
-  var countBytes = function countBytes(x) {
-    return Math.ceil(countBits(x) / 8);
-  };
-  var isArrayBufferView = function isArrayBufferView(obj) {
-    if (ArrayBuffer.isView === 'function') {
-      return ArrayBuffer.isView(obj);
-    }
-    return obj && obj.buffer instanceof ArrayBuffer;
-  };
-  var isTypedArray = function isTypedArray(obj) {
-    return isArrayBufferView(obj);
-  };
-  var toUint8 = function toUint8(bytes) {
-    if (bytes instanceof Uint8Array) {
-      return bytes;
-    }
-    if (!Array.isArray(bytes) && !isTypedArray(bytes) && !(bytes instanceof ArrayBuffer)) {
-      // any non-number or NaN leads to empty uint8array
-      // eslint-disable-next-line
-      if (typeof bytes !== 'number' || typeof bytes === 'number' && bytes !== bytes) {
-        bytes = 0;
-      } else {
-        bytes = [bytes];
-      }
-    }
-    return new Uint8Array(bytes && bytes.buffer || bytes, bytes && bytes.byteOffset || 0, bytes && bytes.byteLength || 0);
-  };
-  var BigInt = window.BigInt || Number;
-  var BYTE_TABLE = [BigInt('0x1'), BigInt('0x100'), BigInt('0x10000'), BigInt('0x1000000'), BigInt('0x100000000'), BigInt('0x10000000000'), BigInt('0x1000000000000'), BigInt('0x100000000000000'), BigInt('0x10000000000000000')];
-  (function () {
-    var a = new Uint16Array([0xFFCC]);
-    var b = new Uint8Array(a.buffer, a.byteOffset, a.byteLength);
-    if (b[0] === 0xFF) {
-      return 'big';
-    }
-    if (b[0] === 0xCC) {
-      return 'little';
-    }
-    return 'unknown';
-  })();
-  var bytesToNumber = function bytesToNumber(bytes, _temp) {
-    var _ref = _temp === void 0 ? {} : _temp,
-      _ref$signed = _ref.signed,
-      signed = _ref$signed === void 0 ? false : _ref$signed,
-      _ref$le = _ref.le,
-      le = _ref$le === void 0 ? false : _ref$le;
-    bytes = toUint8(bytes);
-    var fn = le ? 'reduce' : 'reduceRight';
-    var obj = bytes[fn] ? bytes[fn] : Array.prototype[fn];
-    var number = obj.call(bytes, function (total, byte, i) {
-      var exponent = le ? i : Math.abs(i + 1 - bytes.length);
-      return total + BigInt(byte) * BYTE_TABLE[exponent];
-    }, BigInt(0));
-    if (signed) {
-      var max = BYTE_TABLE[bytes.length] / BigInt(2) - BigInt(1);
-      number = BigInt(number);
-      if (number > max) {
-        number -= max;
-        number -= max;
-        number -= BigInt(2);
-      }
-    }
-    return Number(number);
-  };
-  var numberToBytes = function numberToBytes(number, _temp2) {
-    var _ref2 = _temp2 === void 0 ? {} : _temp2,
-      _ref2$le = _ref2.le,
-      le = _ref2$le === void 0 ? false : _ref2$le;
-
-    // eslint-disable-next-line
-    if (typeof number !== 'bigint' && typeof number !== 'number' || typeof number === 'number' && number !== number) {
-      number = 0;
-    }
-    number = BigInt(number);
-    var byteCount = countBytes(number);
-    var bytes = new Uint8Array(new ArrayBuffer(byteCount));
-    for (var i = 0; i < byteCount; i++) {
-      var byteIndex = le ? i : Math.abs(i + 1 - bytes.length);
-      bytes[byteIndex] = Number(number / BYTE_TABLE[i] & BigInt(0xFF));
-      if (number < 0) {
-        bytes[byteIndex] = Math.abs(~bytes[byteIndex]);
-        bytes[byteIndex] -= i === 0 ? 1 : 2;
-      }
-    }
-    return bytes;
-  };
-  var stringToBytes = function stringToBytes(string, stringIsBytes) {
-    if (typeof string !== 'string' && string && typeof string.toString === 'function') {
-      string = string.toString();
-    }
-    if (typeof string !== 'string') {
-      return new Uint8Array();
-    } // If the string already is bytes, we don't have to do this
-    // otherwise we do this so that we split multi length characters
-    // into individual bytes
-
-    if (!stringIsBytes) {
-      string = unescape(encodeURIComponent(string));
-    }
-    var view = new Uint8Array(string.length);
-    for (var i = 0; i < string.length; i++) {
-      view[i] = string.charCodeAt(i);
-    }
-    return view;
-  };
-  var concatTypedArrays = function concatTypedArrays() {
-    for (var _len = arguments.length, buffers = new Array(_len), _key = 0; _key < _len; _key++) {
-      buffers[_key] = arguments[_key];
-    }
-    buffers = buffers.filter(function (b) {
-      return b && (b.byteLength || b.length) && typeof b !== 'string';
-    });
-    if (buffers.length <= 1) {
-      // for 0 length we will return empty uint8
-      // for 1 length we return the first uint8
-      return toUint8(buffers[0]);
-    }
-    var totalLen = buffers.reduce(function (total, buf, i) {
-      return total + (buf.byteLength || buf.length);
-    }, 0);
-    var tempBuffer = new Uint8Array(totalLen);
-    var offset = 0;
-    buffers.forEach(function (buf) {
-      buf = toUint8(buf);
-      tempBuffer.set(buf, offset);
-      offset += buf.byteLength;
-    });
-    return tempBuffer;
-  };
-  /**
-   * Check if the bytes "b" are contained within bytes "a".
-   *
-   * @param {Uint8Array|Array} a
-   *        Bytes to check in
-   *
-   * @param {Uint8Array|Array} b
-   *        Bytes to check for
-   *
-   * @param {Object} options
-   *        options
-   *
-   * @param {Array|Uint8Array} [offset=0]
-   *        offset to use when looking at bytes in a
-   *
-   * @param {Array|Uint8Array} [mask=[]]
-   *        mask to use on bytes before comparison.
-   *
-   * @return {boolean}
-   *         If all bytes in b are inside of a, taking into account
-   *         bit masks.
-   */
-
-  var bytesMatch = function bytesMatch(a, b, _temp3) {
-    var _ref3 = _temp3 === void 0 ? {} : _temp3,
-      _ref3$offset = _ref3.offset,
-      offset = _ref3$offset === void 0 ? 0 : _ref3$offset,
-      _ref3$mask = _ref3.mask,
-      mask = _ref3$mask === void 0 ? [] : _ref3$mask;
-    a = toUint8(a);
-    b = toUint8(b); // ie 11 does not support uint8 every
-
-    var fn = b.every ? b.every : Array.prototype.every;
-    return b.length && a.length - offset >= b.length &&
-    // ie 11 doesn't support every on uin8
-    fn.call(b, function (bByte, i) {
-      var aByte = mask[i] ? mask[i] & a[offset + i] : a[offset + i];
-      return bByte === aByte;
-    });
-  };
-
-  /**
-   * Loops through all supported media groups in master and calls the provided
-   * callback for each group
-   *
-   * @param {Object} master
-   *        The parsed master manifest object
-   * @param {string[]} groups
-   *        The media groups to call the callback for
-   * @param {Function} callback
-   *        Callback to call for each media group
-   */
-  var forEachMediaGroup$1 = function forEachMediaGroup(master, groups, callback) {
-    groups.forEach(function (mediaType) {
-      for (var groupKey in master.mediaGroups[mediaType]) {
-        for (var labelKey in master.mediaGroups[mediaType][groupKey]) {
-          var mediaProperties = master.mediaGroups[mediaType][groupKey][labelKey];
-          callback(mediaProperties, mediaType, groupKey, labelKey);
-        }
-      }
-    });
-  };
-
-  var atob = function atob(s) {
-    return window.atob ? window.atob(s) : Buffer.from(s, 'base64').toString('binary');
-  };
-  function decodeB64ToUint8Array(b64Text) {
-    var decodedString = atob(b64Text);
-    var array = new Uint8Array(decodedString.length);
-    for (var i = 0; i < decodedString.length; i++) {
-      array[i] = decodedString.charCodeAt(i);
-    }
-    return array;
-  }
-
-  /**
-   * Ponyfill for `Array.prototype.find` which is only available in ES6 runtimes.
-   *
-   * Works with anything that has a `length` property and index access properties, including NodeList.
-   *
-   * @template {unknown} T
-   * @param {Array<T> | ({length:number, [number]: T})} list
-   * @param {function (item: T, index: number, list:Array<T> | ({length:number, [number]: T})):boolean} predicate
-   * @param {Partial<Pick<ArrayConstructor['prototype'], 'find'>>?} ac `Array.prototype` by default,
-   * 				allows injecting a custom implementation in tests
-   * @returns {T | undefined}
-   *
-   * @see https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/find
-   * @see https://tc39.es/ecma262/multipage/indexed-collections.html#sec-array.prototype.find
-   */
-  function find$1(list, predicate, ac) {
-    if (ac === undefined) {
-      ac = Array.prototype;
-    }
-    if (list && typeof ac.find === 'function') {
-      return ac.find.call(list, predicate);
-    }
-    for (var i = 0; i < list.length; i++) {
-      if (Object.prototype.hasOwnProperty.call(list, i)) {
-        var item = list[i];
-        if (predicate.call(undefined, item, i, list)) {
-          return item;
-        }
-      }
-    }
-  }
-
-  /**
-   * "Shallow freezes" an object to render it immutable.
-   * Uses `Object.freeze` if available,
-   * otherwise the immutability is only in the type.
-   *
-   * Is used to create "enum like" objects.
-   *
-   * @template T
-   * @param {T} object the object to freeze
-   * @param {Pick<ObjectConstructor, 'freeze'> = Object} oc `Object` by default,
-   * 				allows to inject custom object constructor for tests
-   * @returns {Readonly<T>}
-   *
-   * @see https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/freeze
-   */
-  function freeze(object, oc) {
-    if (oc === undefined) {
-      oc = Object;
-    }
-    return oc && typeof oc.freeze === 'function' ? oc.freeze(object) : object;
-  }
-
-  /**
-   * Since we can not rely on `Object.assign` we provide a simplified version
-   * that is sufficient for our needs.
-   *
-   * @param {Object} target
-   * @param {Object | null | undefined} source
-   *
-   * @returns {Object} target
-   * @throws TypeError if target is not an object
-   *
-   * @see https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/assign
-   * @see https://tc39.es/ecma262/multipage/fundamental-objects.html#sec-object.assign
-   */
-  function assign(target, source) {
-    if (target === null || typeof target !== 'object') {
-      throw new TypeError('target is not an object');
-    }
-    for (var key in source) {
-      if (Object.prototype.hasOwnProperty.call(source, key)) {
-        target[key] = source[key];
-      }
-    }
-    return target;
-  }
-
-  /**
-   * All mime types that are allowed as input to `DOMParser.parseFromString`
-   *
-   * @see https://developer.mozilla.org/en-US/docs/Web/API/DOMParser/parseFromString#Argument02 MDN
-   * @see https://html.spec.whatwg.org/multipage/dynamic-markup-insertion.html#domparsersupportedtype WHATWG HTML Spec
-   * @see DOMParser.prototype.parseFromString
-   */
-  var MIME_TYPE = freeze({
-    /**
-     * `text/html`, the only mime type that triggers treating an XML document as HTML.
-     *
-     * @see DOMParser.SupportedType.isHTML
-     * @see https://www.iana.org/assignments/media-types/text/html IANA MimeType registration
-     * @see https://en.wikipedia.org/wiki/HTML Wikipedia
-     * @see https://developer.mozilla.org/en-US/docs/Web/API/DOMParser/parseFromString MDN
-     * @see https://html.spec.whatwg.org/multipage/dynamic-markup-insertion.html#dom-domparser-parsefromstring WHATWG HTML Spec
-     */
-    HTML: 'text/html',
-    /**
-     * Helper method to check a mime type if it indicates an HTML document
-     *
-     * @param {string} [value]
-     * @returns {boolean}
-     *
-     * @see https://www.iana.org/assignments/media-types/text/html IANA MimeType registration
-     * @see https://en.wikipedia.org/wiki/HTML Wikipedia
-     * @see https://developer.mozilla.org/en-US/docs/Web/API/DOMParser/parseFromString MDN
-     * @see https://html.spec.whatwg.org/multipage/dynamic-markup-insertion.html#dom-domparser-parsefromstring 	 */
-    isHTML: function (value) {
-      return value === MIME_TYPE.HTML;
-    },
-    /**
-     * `application/xml`, the standard mime type for XML documents.
-     *
-     * @see https://www.iana.org/assignments/media-types/application/xml IANA MimeType registration
-     * @see https://tools.ietf.org/html/rfc7303#section-9.1 RFC 7303
-     * @see https://en.wikipedia.org/wiki/XML_and_MIME Wikipedia
-     */
-    XML_APPLICATION: 'application/xml',
-    /**
-     * `text/html`, an alias for `application/xml`.
-     *
-     * @see https://tools.ietf.org/html/rfc7303#section-9.2 RFC 7303
-     * @see https://www.iana.org/assignments/media-types/text/xml IANA MimeType registration
-     * @see https://en.wikipedia.org/wiki/XML_and_MIME Wikipedia
-     */
-    XML_TEXT: 'text/xml',
-    /**
-     * `application/xhtml+xml`, indicates an XML document that has the default HTML namespace,
-     * but is parsed as an XML document.
-     *
-     * @see https://www.iana.org/assignments/media-types/application/xhtml+xml IANA MimeType registration
-     * @see https://dom.spec.whatwg.org/#dom-domimplementation-createdocument WHATWG DOM Spec
-     * @see https://en.wikipedia.org/wiki/XHTML Wikipedia
-     */
-    XML_XHTML_APPLICATION: 'application/xhtml+xml',
-    /**
-     * `image/svg+xml`,
-     *
-     * @see https://www.iana.org/assignments/media-types/image/svg+xml IANA MimeType registration
-     * @see https://www.w3.org/TR/SVG11/ W3C SVG 1.1
-     * @see https://en.wikipedia.org/wiki/Scalable_Vector_Graphics Wikipedia
-     */
-    XML_SVG_IMAGE: 'image/svg+xml'
-  });
-
-  /**
-   * Namespaces that are used in this code base.
-   *
-   * @see http://www.w3.org/TR/REC-xml-names
-   */
-  var NAMESPACE$3 = freeze({
-    /**
-     * The XHTML namespace.
-     *
-     * @see http://www.w3.org/1999/xhtml
-     */
-    HTML: 'http://www.w3.org/1999/xhtml',
-    /**
-     * Checks if `uri` equals `NAMESPACE.HTML`.
-     *
-     * @param {string} [uri]
-     *
-     * @see NAMESPACE.HTML
-     */
-    isHTML: function (uri) {
-      return uri === NAMESPACE$3.HTML;
-    },
-    /**
-     * The SVG namespace.
-     *
-     * @see http://www.w3.org/2000/svg
-     */
-    SVG: 'http://www.w3.org/2000/svg',
-    /**
-     * The `xml:` namespace.
-     *
-     * @see http://www.w3.org/XML/1998/namespace
-     */
-    XML: 'http://www.w3.org/XML/1998/namespace',
-    /**
-     * The `xmlns:` namespace
-     *
-     * @see https://www.w3.org/2000/xmlns/
-     */
-    XMLNS: 'http://www.w3.org/2000/xmlns/'
-  });
-  var assign_1 = assign;
-  var find_1 = find$1;
-  var freeze_1 = freeze;
-  var MIME_TYPE_1 = MIME_TYPE;
-  var NAMESPACE_1 = NAMESPACE$3;
-  var conventions = {
-    assign: assign_1,
-    find: find_1,
-    freeze: freeze_1,
-    MIME_TYPE: MIME_TYPE_1,
-    NAMESPACE: NAMESPACE_1
-  };
-
-  var find = conventions.find;
-  var NAMESPACE$2 = conventions.NAMESPACE;
-
-  /**
-   * A prerequisite for `[].filter`, to drop elements that are empty
-   * @param {string} input
-   * @returns {boolean}
-   */
-  function notEmptyString(input) {
-    return input !== '';
-  }
-  /**
-   * @see https://infra.spec.whatwg.org/#split-on-ascii-whitespace
-   * @see https://infra.spec.whatwg.org/#ascii-whitespace
-   *
-   * @param {string} input
-   * @returns {string[]} (can be empty)
-   */
-  function splitOnASCIIWhitespace(input) {
-    // U+0009 TAB, U+000A LF, U+000C FF, U+000D CR, U+0020 SPACE
-    return input ? input.split(/[\t\n\f\r ]+/).filter(notEmptyString) : [];
-  }
-
-  /**
-   * Adds element as a key to current if it is not already present.
-   *
-   * @param {Record<string, boolean | undefined>} current
-   * @param {string} element
-   * @returns {Record<string, boolean | undefined>}
-   */
-  function orderedSetReducer(current, element) {
-    if (!current.hasOwnProperty(element)) {
-      current[element] = true;
-    }
-    return current;
-  }
-
-  /**
-   * @see https://infra.spec.whatwg.org/#ordered-set
-   * @param {string} input
-   * @returns {string[]}
-   */
-  function toOrderedSet(input) {
-    if (!input) return [];
-    var list = splitOnASCIIWhitespace(input);
-    return Object.keys(list.reduce(orderedSetReducer, {}));
-  }
-
-  /**
-   * Uses `list.indexOf` to implement something like `Array.prototype.includes`,
-   * which we can not rely on being available.
-   *
-   * @param {any[]} list
-   * @returns {function(any): boolean}
-   */
-  function arrayIncludes(list) {
-    return function (element) {
-      return list && list.indexOf(element) !== -1;
-    };
-  }
-  function copy(src, dest) {
-    for (var p in src) {
-      if (Object.prototype.hasOwnProperty.call(src, p)) {
-        dest[p] = src[p];
-      }
-    }
-  }
-
-  /**
-  ^\w+\.prototype\.([_\w]+)\s*=\s*((?:.*\{\s*?[\r\n][\s\S]*?^})|\S.*?(?=[;\r\n]));?
-  ^\w+\.prototype\.([_\w]+)\s*=\s*(\S.*?(?=[;\r\n]));?
-   */
-  function _extends(Class, Super) {
-    var pt = Class.prototype;
-    if (!(pt instanceof Super)) {
-      function t() {}
-      t.prototype = Super.prototype;
-      t = new t();
-      copy(pt, t);
-      Class.prototype = pt = t;
-    }
-    if (pt.constructor != Class) {
-      if (typeof Class != 'function') {
-        console.error("unknown Class:" + Class);
-      }
-      pt.constructor = Class;
-    }
-  }
-
-  // Node Types
-  var NodeType = {};
-  var ELEMENT_NODE = NodeType.ELEMENT_NODE = 1;
-  var ATTRIBUTE_NODE = NodeType.ATTRIBUTE_NODE = 2;
-  var TEXT_NODE = NodeType.TEXT_NODE = 3;
-  var CDATA_SECTION_NODE = NodeType.CDATA_SECTION_NODE = 4;
-  var ENTITY_REFERENCE_NODE = NodeType.ENTITY_REFERENCE_NODE = 5;
-  var ENTITY_NODE = NodeType.ENTITY_NODE = 6;
-  var PROCESSING_INSTRUCTION_NODE = NodeType.PROCESSING_INSTRUCTION_NODE = 7;
-  var COMMENT_NODE = NodeType.COMMENT_NODE = 8;
-  var DOCUMENT_NODE = NodeType.DOCUMENT_NODE = 9;
-  var DOCUMENT_TYPE_NODE = NodeType.DOCUMENT_TYPE_NODE = 10;
-  var DOCUMENT_FRAGMENT_NODE = NodeType.DOCUMENT_FRAGMENT_NODE = 11;
-  var NOTATION_NODE = NodeType.NOTATION_NODE = 12;
-
-  // ExceptionCode
-  var ExceptionCode = {};
-  var ExceptionMessage = {};
-  ExceptionCode.INDEX_SIZE_ERR = (ExceptionMessage[1] = "Index size error", 1);
-  ExceptionCode.DOMSTRING_SIZE_ERR = (ExceptionMessage[2] = "DOMString size error", 2);
-  var HIERARCHY_REQUEST_ERR = ExceptionCode.HIERARCHY_REQUEST_ERR = (ExceptionMessage[3] = "Hierarchy request error", 3);
-  ExceptionCode.WRONG_DOCUMENT_ERR = (ExceptionMessage[4] = "Wrong document", 4);
-  ExceptionCode.INVALID_CHARACTER_ERR = (ExceptionMessage[5] = "Invalid character", 5);
-  ExceptionCode.NO_DATA_ALLOWED_ERR = (ExceptionMessage[6] = "No data allowed", 6);
-  ExceptionCode.NO_MODIFICATION_ALLOWED_ERR = (ExceptionMessage[7] = "No modification allowed", 7);
-  var NOT_FOUND_ERR = ExceptionCode.NOT_FOUND_ERR = (ExceptionMessage[8] = "Not found", 8);
-  ExceptionCode.NOT_SUPPORTED_ERR = (ExceptionMessage[9] = "Not supported", 9);
-  var INUSE_ATTRIBUTE_ERR = ExceptionCode.INUSE_ATTRIBUTE_ERR = (ExceptionMessage[10] = "Attribute in use", 10);
-  //level2
-  ExceptionCode.INVALID_STATE_ERR = (ExceptionMessage[11] = "Invalid state", 11);
-  ExceptionCode.SYNTAX_ERR = (ExceptionMessage[12] = "Syntax error", 12);
-  ExceptionCode.INVALID_MODIFICATION_ERR = (ExceptionMessage[13] = "Invalid modification", 13);
-  ExceptionCode.NAMESPACE_ERR = (ExceptionMessage[14] = "Invalid namespace", 14);
-  ExceptionCode.INVALID_ACCESS_ERR = (ExceptionMessage[15] = "Invalid access", 15);
-
-  /**
-   * DOM Level 2
-   * Object DOMException
-   * @see http://www.w3.org/TR/2000/REC-DOM-Level-2-Core-20001113/ecma-script-binding.html
-   * @see http://www.w3.org/TR/REC-DOM-Level-1/ecma-script-language-binding.html
-   */
-  function DOMException(code, message) {
-    if (message instanceof Error) {
-      var error = message;
-    } else {
-      error = this;
-      Error.call(this, ExceptionMessage[code]);
-      this.message = ExceptionMessage[code];
-      if (Error.captureStackTrace) Error.captureStackTrace(this, DOMException);
-    }
-    error.code = code;
-    if (message) this.message = this.message + ": " + message;
-    return error;
-  }
-  DOMException.prototype = Error.prototype;
-  copy(ExceptionCode, DOMException);
-
-  /**
-   * @see http://www.w3.org/TR/2000/REC-DOM-Level-2-Core-20001113/core.html#ID-536297177
-   * The NodeList interface provides the abstraction of an ordered collection of nodes, without defining or constraining how this collection is implemented. NodeList objects in the DOM are live.
-   * The items in the NodeList are accessible via an integral index, starting from 0.
-   */
-  function NodeList() {}
-  NodeList.prototype = {
-    /**
-     * The number of nodes in the list. The range of valid child node indices is 0 to length-1 inclusive.
-     * @standard level1
-     */
-    length: 0,
-    /**
-     * Returns the indexth item in the collection. If index is greater than or equal to the number of nodes in the list, this returns null.
-     * @standard level1
-     * @param index  unsigned long
-     *   Index into the collection.
-     * @return Node
-     * 	The node at the indexth position in the NodeList, or null if that is not a valid index.
-     */
-    item: function (index) {
-      return index >= 0 && index < this.length ? this[index] : null;
-    },
-    toString: function (isHTML, nodeFilter) {
-      for (var buf = [], i = 0; i < this.length; i++) {
-        serializeToString(this[i], buf, isHTML, nodeFilter);
-      }
-      return buf.join('');
-    },
-    /**
-     * @private
-     * @param {function (Node):boolean} predicate
-     * @returns {Node[]}
-     */
-    filter: function (predicate) {
-      return Array.prototype.filter.call(this, predicate);
-    },
-    /**
-     * @private
-     * @param {Node} item
-     * @returns {number}
-     */
-    indexOf: function (item) {
-      return Array.prototype.indexOf.call(this, item);
-    }
-  };
-  function LiveNodeList(node, refresh) {
-    this._node = node;
-    this._refresh = refresh;
-    _updateLiveList(this);
-  }
-  function _updateLiveList(list) {
-    var inc = list._node._inc || list._node.ownerDocument._inc;
-    if (list._inc !== inc) {
-      var ls = list._refresh(list._node);
-      __set__(list, 'length', ls.length);
-      if (!list.$$length || ls.length < list.$$length) {
-        for (var i = ls.length; (i in list); i++) {
-          if (Object.prototype.hasOwnProperty.call(list, i)) {
-            delete list[i];
-          }
-        }
-      }
-      copy(ls, list);
-      list._inc = inc;
-    }
-  }
-  LiveNodeList.prototype.item = function (i) {
-    _updateLiveList(this);
-    return this[i] || null;
-  };
-  _extends(LiveNodeList, NodeList);
-
-  /**
-   * Objects implementing the NamedNodeMap interface are used
-   * to represent collections of nodes that can be accessed by name.
-   * Note that NamedNodeMap does not inherit from NodeList;
-   * NamedNodeMaps are not maintained in any particular order.
-   * Objects contained in an object implementing NamedNodeMap may also be accessed by an ordinal index,
-   * but this is simply to allow convenient enumeration of the contents of a NamedNodeMap,
-   * and does not imply that the DOM specifies an order to these Nodes.
-   * NamedNodeMap objects in the DOM are live.
-   * used for attributes or DocumentType entities
-   */
-  function NamedNodeMap() {}
-  function _findNodeIndex(list, node) {
-    var i = list.length;
-    while (i--) {
-      if (list[i] === node) {
-        return i;
-      }
-    }
-  }
-  function _addNamedNode(el, list, newAttr, oldAttr) {
-    if (oldAttr) {
-      list[_findNodeIndex(list, oldAttr)] = newAttr;
-    } else {
-      list[list.length++] = newAttr;
-    }
-    if (el) {
-      newAttr.ownerElement = el;
-      var doc = el.ownerDocument;
-      if (doc) {
-        oldAttr && _onRemoveAttribute(doc, el, oldAttr);
-        _onAddAttribute(doc, el, newAttr);
-      }
-    }
-  }
-  function _removeNamedNode(el, list, attr) {
-    //console.log('remove attr:'+attr)
-    var i = _findNodeIndex(list, attr);
-    if (i >= 0) {
-      var lastIndex = list.length - 1;
-      while (i < lastIndex) {
-        list[i] = list[++i];
-      }
-      list.length = lastIndex;
-      if (el) {
-        var doc = el.ownerDocument;
-        if (doc) {
-          _onRemoveAttribute(doc, el, attr);
-          attr.ownerElement = null;
-        }
-      }
-    } else {
-      throw new DOMException(NOT_FOUND_ERR, new Error(el.tagName + '@' + attr));
-    }
-  }
-  NamedNodeMap.prototype = {
-    length: 0,
-    item: NodeList.prototype.item,
-    getNamedItem: function (key) {
-      //		if(key.indexOf(':')>0 || key == 'xmlns'){
-      //			return null;
-      //		}
-      //console.log()
-      var i = this.length;
-      while (i--) {
-        var attr = this[i];
-        //console.log(attr.nodeName,key)
-        if (attr.nodeName == key) {
-          return attr;
-        }
-      }
-    },
-    setNamedItem: function (attr) {
-      var el = attr.ownerElement;
-      if (el && el != this._ownerElement) {
-        throw new DOMException(INUSE_ATTRIBUTE_ERR);
-      }
-      var oldAttr = this.getNamedItem(attr.nodeName);
-      _addNamedNode(this._ownerElement, this, attr, oldAttr);
-      return oldAttr;
-    },
-    /* returns Node */
-    setNamedItemNS: function (attr) {
-      // raises: WRONG_DOCUMENT_ERR,NO_MODIFICATION_ALLOWED_ERR,INUSE_ATTRIBUTE_ERR
-      var el = attr.ownerElement,
-        oldAttr;
-      if (el && el != this._ownerElement) {
-        throw new DOMException(INUSE_ATTRIBUTE_ERR);
-      }
-      oldAttr = this.getNamedItemNS(attr.namespaceURI, attr.localName);
-      _addNamedNode(this._ownerElement, this, attr, oldAttr);
-      return oldAttr;
-    },
-    /* returns Node */
-    removeNamedItem: function (key) {
-      var attr = this.getNamedItem(key);
-      _removeNamedNode(this._ownerElement, this, attr);
-      return attr;
-    },
-    // raises: NOT_FOUND_ERR,NO_MODIFICATION_ALLOWED_ERR
-
-    //for level2
-    removeNamedItemNS: function (namespaceURI, localName) {
-      var attr = this.getNamedItemNS(namespaceURI, localName);
-      _removeNamedNode(this._ownerElement, this, attr);
-      return attr;
-    },
-    getNamedItemNS: function (namespaceURI, localName) {
-      var i = this.length;
-      while (i--) {
-        var node = this[i];
-        if (node.localName == localName && node.namespaceURI == namespaceURI) {
-          return node;
-        }
-      }
-      return null;
-    }
-  };
-
-  /**
-   * The DOMImplementation interface represents an object providing methods
-   * which are not dependent on any particular document.
-   * Such an object is returned by the `Document.implementation` property.
-   *
-   * __The individual methods describe the differences compared to the specs.__
-   *
-   * @constructor
-   *
-   * @see https://developer.mozilla.org/en-US/docs/Web/API/DOMImplementation MDN
-   * @see https://www.w3.org/TR/REC-DOM-Level-1/level-one-core.html#ID-102161490 DOM Level 1 Core (Initial)
-   * @see https://www.w3.org/TR/DOM-Level-2-Core/core.html#ID-102161490 DOM Level 2 Core
-   * @see https://www.w3.org/TR/DOM-Level-3-Core/core.html#ID-102161490 DOM Level 3 Core
-   * @see https://dom.spec.whatwg.org/#domimplementation DOM Living Standard
-   */
-  function DOMImplementation$1() {}
-  DOMImplementation$1.prototype = {
-    /**
-     * The DOMImplementation.hasFeature() method returns a Boolean flag indicating if a given feature is supported.
-     * The different implementations fairly diverged in what kind of features were reported.
-     * The latest version of the spec settled to force this method to always return true, where the functionality was accurate and in use.
-     *
-     * @deprecated It is deprecated and modern browsers return true in all cases.
-     *
-     * @param {string} feature
-     * @param {string} [version]
-     * @returns {boolean} always true
-     *
-     * @see https://developer.mozilla.org/en-US/docs/Web/API/DOMImplementation/hasFeature MDN
-     * @see https://www.w3.org/TR/REC-DOM-Level-1/level-one-core.html#ID-5CED94D7 DOM Level 1 Core
-     * @see https://dom.spec.whatwg.org/#dom-domimplementation-hasfeature DOM Living Standard
-     */
-    hasFeature: function (feature, version) {
-      return true;
-    },
-    /**
-     * Creates an XML Document object of the specified type with its document element.
-     *
-     * __It behaves slightly different from the description in the living standard__:
-     * - There is no interface/class `XMLDocument`, it returns a `Document` instance.
-     * - `contentType`, `encoding`, `mode`, `origin`, `url` fields are currently not declared.
-     * - this implementation is not validating names or qualified names
-     *   (when parsing XML strings, the SAX parser takes care of that)
-     *
-     * @param {string|null} namespaceURI
-     * @param {string} qualifiedName
-     * @param {DocumentType=null} doctype
-     * @returns {Document}
-     *
-     * @see https://developer.mozilla.org/en-US/docs/Web/API/DOMImplementation/createDocument MDN
-     * @see https://www.w3.org/TR/DOM-Level-2-Core/core.html#Level-2-Core-DOM-createDocument DOM Level 2 Core (initial)
-     * @see https://dom.spec.whatwg.org/#dom-domimplementation-createdocument  DOM Level 2 Core
-     *
-     * @see https://dom.spec.whatwg.org/#validate-and-extract DOM: Validate and extract
-     * @see https://www.w3.org/TR/xml/#NT-NameStartChar XML Spec: Names
-     * @see https://www.w3.org/TR/xml-names/#ns-qualnames XML Namespaces: Qualified names
-     */
-    createDocument: function (namespaceURI, qualifiedName, doctype) {
-      var doc = new Document();
-      doc.implementation = this;
-      doc.childNodes = new NodeList();
-      doc.doctype = doctype || null;
-      if (doctype) {
-        doc.appendChild(doctype);
-      }
-      if (qualifiedName) {
-        var root = doc.createElementNS(namespaceURI, qualifiedName);
-        doc.appendChild(root);
-      }
-      return doc;
-    },
-    /**
-     * Returns a doctype, with the given `qualifiedName`, `publicId`, and `systemId`.
-     *
-     * __This behavior is slightly different from the in the specs__:
-     * - this implementation is not validating names or qualified names
-     *   (when parsing XML strings, the SAX parser takes care of that)
-     *
-     * @param {string} qualifiedName
-     * @param {string} [publicId]
-     * @param {string} [systemId]
-     * @returns {DocumentType} which can either be used with `DOMImplementation.createDocument` upon document creation
-     * 				  or can be put into the document via methods like `Node.insertBefore()` or `Node.replaceChild()`
-     *
-     * @see https://developer.mozilla.org/en-US/docs/Web/API/DOMImplementation/createDocumentType MDN
-     * @see https://www.w3.org/TR/DOM-Level-2-Core/core.html#Level-2-Core-DOM-createDocType DOM Level 2 Core
-     * @see https://dom.spec.whatwg.org/#dom-domimplementation-createdocumenttype DOM Living Standard
-     *
-     * @see https://dom.spec.whatwg.org/#validate-and-extract DOM: Validate and extract
-     * @see https://www.w3.org/TR/xml/#NT-NameStartChar XML Spec: Names
-     * @see https://www.w3.org/TR/xml-names/#ns-qualnames XML Namespaces: Qualified names
-     */
-    createDocumentType: function (qualifiedName, publicId, systemId) {
-      var node = new DocumentType();
-      node.name = qualifiedName;
-      node.nodeName = qualifiedName;
-      node.publicId = publicId || '';
-      node.systemId = systemId || '';
-      return node;
-    }
-  };
-
-  /**
-   * @see http://www.w3.org/TR/2000/REC-DOM-Level-2-Core-20001113/core.html#ID-1950641247
-   */
-
-  function Node() {}
-  Node.prototype = {
-    firstChild: null,
-    lastChild: null,
-    previousSibling: null,
-    nextSibling: null,
-    attributes: null,
-    parentNode: null,
-    childNodes: null,
-    ownerDocument: null,
-    nodeValue: null,
-    namespaceURI: null,
-    prefix: null,
-    localName: null,
-    // Modified in DOM Level 2:
-    insertBefore: function (newChild, refChild) {
-      //raises
-      return _insertBefore(this, newChild, refChild);
-    },
-    replaceChild: function (newChild, oldChild) {
-      //raises
-      _insertBefore(this, newChild, oldChild, assertPreReplacementValidityInDocument);
-      if (oldChild) {
-        this.removeChild(oldChild);
-      }
-    },
-    removeChild: function (oldChild) {
-      return _removeChild(this, oldChild);
-    },
-    appendChild: function (newChild) {
-      return this.insertBefore(newChild, null);
-    },
-    hasChildNodes: function () {
-      return this.firstChild != null;
-    },
-    cloneNode: function (deep) {
-      return cloneNode(this.ownerDocument || this, this, deep);
-    },
-    // Modified in DOM Level 2:
-    normalize: function () {
-      var child = this.firstChild;
-      while (child) {
-        var next = child.nextSibling;
-        if (next && next.nodeType == TEXT_NODE && child.nodeType == TEXT_NODE) {
-          this.removeChild(next);
-          child.appendData(next.data);
-        } else {
-          child.normalize();
-          child = next;
-        }
-      }
-    },
-    // Introduced in DOM Level 2:
-    isSupported: function (feature, version) {
-      return this.ownerDocument.implementation.hasFeature(feature, version);
-    },
-    // Introduced in DOM Level 2:
-    hasAttributes: function () {
-      return this.attributes.length > 0;
-    },
-    /**
-     * Look up the prefix associated to the given namespace URI, starting from this node.
-     * **The default namespace declarations are ignored by this method.**
-     * See Namespace Prefix Lookup for details on the algorithm used by this method.
-     *
-     * _Note: The implementation seems to be incomplete when compared to the algorithm described in the specs._
-     *
-     * @param {string | null} namespaceURI
-     * @returns {string | null}
-     * @see https://www.w3.org/TR/DOM-Level-3-Core/core.html#Node3-lookupNamespacePrefix
-     * @see https://www.w3.org/TR/DOM-Level-3-Core/namespaces-algorithms.html#lookupNamespacePrefixAlgo
-     * @see https://dom.spec.whatwg.org/#dom-node-lookupprefix
-     * @see https://github.com/xmldom/xmldom/issues/322
-     */
-    lookupPrefix: function (namespaceURI) {
-      var el = this;
-      while (el) {
-        var map = el._nsMap;
-        //console.dir(map)
-        if (map) {
-          for (var n in map) {
-            if (Object.prototype.hasOwnProperty.call(map, n) && map[n] === namespaceURI) {
-              return n;
-            }
-          }
-        }
-        el = el.nodeType == ATTRIBUTE_NODE ? el.ownerDocument : el.parentNode;
-      }
-      return null;
-    },
-    // Introduced in DOM Level 3:
-    lookupNamespaceURI: function (prefix) {
-      var el = this;
-      while (el) {
-        var map = el._nsMap;
-        //console.dir(map)
-        if (map) {
-          if (Object.prototype.hasOwnProperty.call(map, prefix)) {
-            return map[prefix];
-          }
-        }
-        el = el.nodeType == ATTRIBUTE_NODE ? el.ownerDocument : el.parentNode;
-      }
-      return null;
-    },
-    // Introduced in DOM Level 3:
-    isDefaultNamespace: function (namespaceURI) {
-      var prefix = this.lookupPrefix(namespaceURI);
-      return prefix == null;
-    }
-  };
-  function _xmlEncoder(c) {
-    return c == '<' && '&lt;' || c == '>' && '&gt;' || c == '&' && '&amp;' || c == '"' && '&quot;' || '&#' + c.charCodeAt() + ';';
-  }
-  copy(NodeType, Node);
-  copy(NodeType, Node.prototype);
-
-  /**
-   * @param callback return true for continue,false for break
-   * @return boolean true: break visit;
-   */
-  function _visitNode(node, callback) {
-    if (callback(node)) {
-      return true;
-    }
-    if (node = node.firstChild) {
-      do {
-        if (_visitNode(node, callback)) {
-          return true;
-        }
-      } while (node = node.nextSibling);
-    }
-  }
-  function Document() {
-    this.ownerDocument = this;
-  }
-  function _onAddAttribute(doc, el, newAttr) {
-    doc && doc._inc++;
-    var ns = newAttr.namespaceURI;
-    if (ns === NAMESPACE$2.XMLNS) {
-      //update namespace
-      el._nsMap[newAttr.prefix ? newAttr.localName : ''] = newAttr.value;
-    }
-  }
-  function _onRemoveAttribute(doc, el, newAttr, remove) {
-    doc && doc._inc++;
-    var ns = newAttr.namespaceURI;
-    if (ns === NAMESPACE$2.XMLNS) {
-      //update namespace
-      delete el._nsMap[newAttr.prefix ? newAttr.localName : ''];
-    }
-  }
-
-  /**
-   * Updates `el.childNodes`, updating the indexed items and it's `length`.
-   * Passing `newChild` means it will be appended.
-   * Otherwise it's assumed that an item has been removed,
-   * and `el.firstNode` and it's `.nextSibling` are used
-   * to walk the current list of child nodes.
-   *
-   * @param {Document} doc
-   * @param {Node} el
-   * @param {Node} [newChild]
-   * @private
-   */
-  function _onUpdateChild(doc, el, newChild) {
-    if (doc && doc._inc) {
-      doc._inc++;
-      //update childNodes
-      var cs = el.childNodes;
-      if (newChild) {
-        cs[cs.length++] = newChild;
-      } else {
-        var child = el.firstChild;
-        var i = 0;
-        while (child) {
-          cs[i++] = child;
-          child = child.nextSibling;
-        }
-        cs.length = i;
-        delete cs[cs.length];
-      }
-    }
-  }
-
-  /**
-   * Removes the connections between `parentNode` and `child`
-   * and any existing `child.previousSibling` or `child.nextSibling`.
-   *
-   * @see https://github.com/xmldom/xmldom/issues/135
-   * @see https://github.com/xmldom/xmldom/issues/145
-   *
-   * @param {Node} parentNode
-   * @param {Node} child
-   * @returns {Node} the child that was removed.
-   * @private
-   */
-  function _removeChild(parentNode, child) {
-    var previous = child.previousSibling;
-    var next = child.nextSibling;
-    if (previous) {
-      previous.nextSibling = next;
-    } else {
-      parentNode.firstChild = next;
-    }
-    if (next) {
-      next.previousSibling = previous;
-    } else {
-      parentNode.lastChild = previous;
-    }
-    child.parentNode = null;
-    child.previousSibling = null;
-    child.nextSibling = null;
-    _onUpdateChild(parentNode.ownerDocument, parentNode);
-    return child;
-  }
-
-  /**
-   * Returns `true` if `node` can be a parent for insertion.
-   * @param {Node} node
-   * @returns {boolean}
-   */
-  function hasValidParentNodeType(node) {
-    return node && (node.nodeType === Node.DOCUMENT_NODE || node.nodeType === Node.DOCUMENT_FRAGMENT_NODE || node.nodeType === Node.ELEMENT_NODE);
-  }
-
-  /**
-   * Returns `true` if `node` can be inserted according to it's `nodeType`.
-   * @param {Node} node
-   * @returns {boolean}
-   */
-  function hasInsertableNodeType(node) {
-    return node && (isElementNode(node) || isTextNode(node) || isDocTypeNode(node) || node.nodeType === Node.DOCUMENT_FRAGMENT_NODE || node.nodeType === Node.COMMENT_NODE || node.nodeType === Node.PROCESSING_INSTRUCTION_NODE);
-  }
-
-  /**
-   * Returns true if `node` is a DOCTYPE node
-   * @param {Node} node
-   * @returns {boolean}
-   */
-  function isDocTypeNode(node) {
-    return node && node.nodeType === Node.DOCUMENT_TYPE_NODE;
-  }
-
-  /**
-   * Returns true if the node is an element
-   * @param {Node} node
-   * @returns {boolean}
-   */
-  function isElementNode(node) {
-    return node && node.nodeType === Node.ELEMENT_NODE;
-  }
-  /**
-   * Returns true if `node` is a text node
-   * @param {Node} node
-   * @returns {boolean}
-   */
-  function isTextNode(node) {
-    return node && node.nodeType === Node.TEXT_NODE;
-  }
-
-  /**
-   * Check if en element node can be inserted before `child`, or at the end if child is falsy,
-   * according to the presence and position of a doctype node on the same level.
-   *
-   * @param {Document} doc The document node
-   * @param {Node} child the node that would become the nextSibling if the element would be inserted
-   * @returns {boolean} `true` if an element can be inserted before child
-   * @private
-   * https://dom.spec.whatwg.org/#concept-node-ensure-pre-insertion-validity
-   */
-  function isElementInsertionPossible(doc, child) {
-    var parentChildNodes = doc.childNodes || [];
-    if (find(parentChildNodes, isElementNode) || isDocTypeNode(child)) {
-      return false;
-    }
-    var docTypeNode = find(parentChildNodes, isDocTypeNode);
-    return !(child && docTypeNode && parentChildNodes.indexOf(docTypeNode) > parentChildNodes.indexOf(child));
-  }
-
-  /**
-   * Check if en element node can be inserted before `child`, or at the end if child is falsy,
-   * according to the presence and position of a doctype node on the same level.
-   *
-   * @param {Node} doc The document node
-   * @param {Node} child the node that would become the nextSibling if the element would be inserted
-   * @returns {boolean} `true` if an element can be inserted before child
-   * @private
-   * https://dom.spec.whatwg.org/#concept-node-ensure-pre-insertion-validity
-   */
-  function isElementReplacementPossible(doc, child) {
-    var parentChildNodes = doc.childNodes || [];
-    function hasElementChildThatIsNotChild(node) {
-      return isElementNode(node) && node !== child;
-    }
-    if (find(parentChildNodes, hasElementChildThatIsNotChild)) {
-      return false;
-    }
-    var docTypeNode = find(parentChildNodes, isDocTypeNode);
-    return !(child && docTypeNode && parentChildNodes.indexOf(docTypeNode) > parentChildNodes.indexOf(child));
-  }
-
-  /**
-   * @private
-   * Steps 1-5 of the checks before inserting and before replacing a child are the same.
-   *
-   * @param {Node} parent the parent node to insert `node` into
-   * @param {Node} node the node to insert
-   * @param {Node=} child the node that should become the `nextSibling` of `node`
-   * @returns {Node}
-   * @throws DOMException for several node combinations that would create a DOM that is not well-formed.
-   * @throws DOMException if `child` is provided but is not a child of `parent`.
-   * @see https://dom.spec.whatwg.org/#concept-node-ensure-pre-insertion-validity
-   * @see https://dom.spec.whatwg.org/#concept-node-replace
-   */
-  function assertPreInsertionValidity1to5(parent, node, child) {
-    // 1. If `parent` is not a Document, DocumentFragment, or Element node, then throw a "HierarchyRequestError" DOMException.
-    if (!hasValidParentNodeType(parent)) {
-      throw new DOMException(HIERARCHY_REQUEST_ERR, 'Unexpected parent node type ' + parent.nodeType);
-    }
-    // 2. If `node` is a host-including inclusive ancestor of `parent`, then throw a "HierarchyRequestError" DOMException.
-    // not implemented!
-    // 3. If `child` is non-null and its parent is not `parent`, then throw a "NotFoundError" DOMException.
-    if (child && child.parentNode !== parent) {
-      throw new DOMException(NOT_FOUND_ERR, 'child not in parent');
-    }
-    if (
-    // 4. If `node` is not a DocumentFragment, DocumentType, Element, or CharacterData node, then throw a "HierarchyRequestError" DOMException.
-    !hasInsertableNodeType(node) ||
-    // 5. If either `node` is a Text node and `parent` is a document,
-    // the sax parser currently adds top level text nodes, this will be fixed in 0.9.0
-    // || (node.nodeType === Node.TEXT_NODE && parent.nodeType === Node.DOCUMENT_NODE)
-    // or `node` is a doctype and `parent` is not a document, then throw a "HierarchyRequestError" DOMException.
-    isDocTypeNode(node) && parent.nodeType !== Node.DOCUMENT_NODE) {
-      throw new DOMException(HIERARCHY_REQUEST_ERR, 'Unexpected node type ' + node.nodeType + ' for parent node type ' + parent.nodeType);
-    }
-  }
-
-  /**
-   * @private
-   * Step 6 of the checks before inserting and before replacing a child are different.
-   *
-   * @param {Document} parent the parent node to insert `node` into
-   * @param {Node} node the node to insert
-   * @param {Node | undefined} child the node that should become the `nextSibling` of `node`
-   * @returns {Node}
-   * @throws DOMException for several node combinations that would create a DOM that is not well-formed.
-   * @throws DOMException if `child` is provided but is not a child of `parent`.
-   * @see https://dom.spec.whatwg.org/#concept-node-ensure-pre-insertion-validity
-   * @see https://dom.spec.whatwg.org/#concept-node-replace
-   */
-  function assertPreInsertionValidityInDocument(parent, node, child) {
-    var parentChildNodes = parent.childNodes || [];
-    var nodeChildNodes = node.childNodes || [];
-
-    // DocumentFragment
-    if (node.nodeType === Node.DOCUMENT_FRAGMENT_NODE) {
-      var nodeChildElements = nodeChildNodes.filter(isElementNode);
-      // If node has more than one element child or has a Text node child.
-      if (nodeChildElements.length > 1 || find(nodeChildNodes, isTextNode)) {
-        throw new DOMException(HIERARCHY_REQUEST_ERR, 'More than one element or text in fragment');
-      }
-      // Otherwise, if `node` has one element child and either `parent` has an element child,
-      // `child` is a doctype, or `child` is non-null and a doctype is following `child`.
-      if (nodeChildElements.length === 1 && !isElementInsertionPossible(parent, child)) {
-        throw new DOMException(HIERARCHY_REQUEST_ERR, 'Element in fragment can not be inserted before doctype');
-      }
-    }
-    // Element
-    if (isElementNode(node)) {
-      // `parent` has an element child, `child` is a doctype,
-      // or `child` is non-null and a doctype is following `child`.
-      if (!isElementInsertionPossible(parent, child)) {
-        throw new DOMException(HIERARCHY_REQUEST_ERR, 'Only one element can be added and only after doctype');
-      }
-    }
-    // DocumentType
-    if (isDocTypeNode(node)) {
-      // `parent` has a doctype child,
-      if (find(parentChildNodes, isDocTypeNode)) {
-        throw new DOMException(HIERARCHY_REQUEST_ERR, 'Only one doctype is allowed');
-      }
-      var parentElementChild = find(parentChildNodes, isElementNode);
-      // `child` is non-null and an element is preceding `child`,
-      if (child && parentChildNodes.indexOf(parentElementChild) < parentChildNodes.indexOf(child)) {
-        throw new DOMException(HIERARCHY_REQUEST_ERR, 'Doctype can only be inserted before an element');
-      }
-      // or `child` is null and `parent` has an element child.
-      if (!child && parentElementChild) {
-        throw new DOMException(HIERARCHY_REQUEST_ERR, 'Doctype can not be appended since element is present');
-      }
-    }
-  }
-
-  /**
-   * @private
-   * Step 6 of the checks before inserting and before replacing a child are different.
-   *
-   * @param {Document} parent the parent node to insert `node` into
-   * @param {Node} node the node to insert
-   * @param {Node | undefined} child the node that should become the `nextSibling` of `node`
-   * @returns {Node}
-   * @throws DOMException for several node combinations that would create a DOM that is not well-formed.
-   * @throws DOMException if `child` is provided but is not a child of `parent`.
-   * @see https://dom.spec.whatwg.org/#concept-node-ensure-pre-insertion-validity
-   * @see https://dom.spec.whatwg.org/#concept-node-replace
-   */
-  function assertPreReplacementValidityInDocument(parent, node, child) {
-    var parentChildNodes = parent.childNodes || [];
-    var nodeChildNodes = node.childNodes || [];
-
-    // DocumentFragment
-    if (node.nodeType === Node.DOCUMENT_FRAGMENT_NODE) {
-      var nodeChildElements = nodeChildNodes.filter(isElementNode);
-      // If `node` has more than one element child or has a Text node child.
-      if (nodeChildElements.length > 1 || find(nodeChildNodes, isTextNode)) {
-        throw new DOMException(HIERARCHY_REQUEST_ERR, 'More than one element or text in fragment');
-      }
-      // Otherwise, if `node` has one element child and either `parent` has an element child that is not `child` or a doctype is following `child`.
-      if (nodeChildElements.length === 1 && !isElementReplacementPossible(parent, child)) {
-        throw new DOMException(HIERARCHY_REQUEST_ERR, 'Element in fragment can not be inserted before doctype');
-      }
-    }
-    // Element
-    if (isElementNode(node)) {
-      // `parent` has an element child that is not `child` or a doctype is following `child`.
-      if (!isElementReplacementPossible(parent, child)) {
-        throw new DOMException(HIERARCHY_REQUEST_ERR, 'Only one element can be added and only after doctype');
-      }
-    }
-    // DocumentType
-    if (isDocTypeNode(node)) {
-      function hasDoctypeChildThatIsNotChild(node) {
-        return isDocTypeNode(node) && node !== child;
-      }
-
-      // `parent` has a doctype child that is not `child`,
-      if (find(parentChildNodes, hasDoctypeChildThatIsNotChild)) {
-        throw new DOMException(HIERARCHY_REQUEST_ERR, 'Only one doctype is allowed');
-      }
-      var parentElementChild = find(parentChildNodes, isElementNode);
-      // or an element is preceding `child`.
-      if (child && parentChildNodes.indexOf(parentElementChild) < parentChildNodes.indexOf(child)) {
-        throw new DOMException(HIERARCHY_REQUEST_ERR, 'Doctype can only be inserted before an element');
-      }
-    }
-  }
-
-  /**
-   * @private
-   * @param {Node} parent the parent node to insert `node` into
-   * @param {Node} node the node to insert
-   * @param {Node=} child the node that should become the `nextSibling` of `node`
-   * @returns {Node}
-   * @throws DOMException for several node combinations that would create a DOM that is not well-formed.
-   * @throws DOMException if `child` is provided but is not a child of `parent`.
-   * @see https://dom.spec.whatwg.org/#concept-node-ensure-pre-insertion-validity
-   */
-  function _insertBefore(parent, node, child, _inDocumentAssertion) {
-    // To ensure pre-insertion validity of a node into a parent before a child, run these steps:
-    assertPreInsertionValidity1to5(parent, node, child);
-
-    // If parent is a document, and any of the statements below, switched on the interface node implements,
-    // are true, then throw a "HierarchyRequestError" DOMException.
-    if (parent.nodeType === Node.DOCUMENT_NODE) {
-      (_inDocumentAssertion || assertPreInsertionValidityInDocument)(parent, node, child);
-    }
-    var cp = node.parentNode;
-    if (cp) {
-      cp.removeChild(node); //remove and update
-    }
-
-    if (node.nodeType === DOCUMENT_FRAGMENT_NODE) {
-      var newFirst = node.firstChild;
-      if (newFirst == null) {
-        return node;
-      }
-      var newLast = node.lastChild;
-    } else {
-      newFirst = newLast = node;
-    }
-    var pre = child ? child.previousSibling : parent.lastChild;
-    newFirst.previousSibling = pre;
-    newLast.nextSibling = child;
-    if (pre) {
-      pre.nextSibling = newFirst;
-    } else {
-      parent.firstChild = newFirst;
-    }
-    if (child == null) {
-      parent.lastChild = newLast;
-    } else {
-      child.previousSibling = newLast;
-    }
-    do {
-      newFirst.parentNode = parent;
-    } while (newFirst !== newLast && (newFirst = newFirst.nextSibling));
-    _onUpdateChild(parent.ownerDocument || parent, parent);
-    //console.log(parent.lastChild.nextSibling == null)
-    if (node.nodeType == DOCUMENT_FRAGMENT_NODE) {
-      node.firstChild = node.lastChild = null;
-    }
-    return node;
-  }
-
-  /**
-   * Appends `newChild` to `parentNode`.
-   * If `newChild` is already connected to a `parentNode` it is first removed from it.
-   *
-   * @see https://github.com/xmldom/xmldom/issues/135
-   * @see https://github.com/xmldom/xmldom/issues/145
-   * @param {Node} parentNode
-   * @param {Node} newChild
-   * @returns {Node}
-   * @private
-   */
-  function _appendSingleChild(parentNode, newChild) {
-    if (newChild.parentNode) {
-      newChild.parentNode.removeChild(newChild);
-    }
-    newChild.parentNode = parentNode;
-    newChild.previousSibling = parentNode.lastChild;
-    newChild.nextSibling = null;
-    if (newChild.previousSibling) {
-      newChild.previousSibling.nextSibling = newChild;
-    } else {
-      parentNode.firstChild = newChild;
-    }
-    parentNode.lastChild = newChild;
-    _onUpdateChild(parentNode.ownerDocument, parentNode, newChild);
-    return newChild;
-  }
-  Document.prototype = {
-    //implementation : null,
-    nodeName: '#document',
-    nodeType: DOCUMENT_NODE,
-    /**
-     * The DocumentType node of the document.
-     *
-     * @readonly
-     * @type DocumentType
-     */
-    doctype: null,
-    documentElement: null,
-    _inc: 1,
-    insertBefore: function (newChild, refChild) {
-      //raises
-      if (newChild.nodeType == DOCUMENT_FRAGMENT_NODE) {
-        var child = newChild.firstChild;
-        while (child) {
-          var next = child.nextSibling;
-          this.insertBefore(child, refChild);
-          child = next;
-        }
-        return newChild;
-      }
-      _insertBefore(this, newChild, refChild);
-      newChild.ownerDocument = this;
-      if (this.documentElement === null && newChild.nodeType === ELEMENT_NODE) {
-        this.documentElement = newChild;
-      }
-      return newChild;
-    },
-    removeChild: function (oldChild) {
-      if (this.documentElement == oldChild) {
-        this.documentElement = null;
-      }
-      return _removeChild(this, oldChild);
-    },
-    replaceChild: function (newChild, oldChild) {
-      //raises
-      _insertBefore(this, newChild, oldChild, assertPreReplacementValidityInDocument);
-      newChild.ownerDocument = this;
-      if (oldChild) {
-        this.removeChild(oldChild);
-      }
-      if (isElementNode(newChild)) {
-        this.documentElement = newChild;
-      }
-    },
-    // Introduced in DOM Level 2:
-    importNode: function (importedNode, deep) {
-      return importNode(this, importedNode, deep);
-    },
-    // Introduced in DOM Level 2:
-    getElementById: function (id) {
-      var rtv = null;
-      _visitNode(this.documentElement, function (node) {
-        if (node.nodeType == ELEMENT_NODE) {
-          if (node.getAttribute('id') == id) {
-            rtv = node;
-            return true;
-          }
-        }
-      });
-      return rtv;
-    },
-    /**
-     * The `getElementsByClassName` method of `Document` interface returns an array-like object
-     * of all child elements which have **all** of the given class name(s).
-     *
-     * Returns an empty list if `classeNames` is an empty string or only contains HTML white space characters.
-     *
-     *
-     * Warning: This is a live LiveNodeList.
-     * Changes in the DOM will reflect in the array as the changes occur.
-     * If an element selected by this array no longer qualifies for the selector,
-     * it will automatically be removed. Be aware of this for iteration purposes.
-     *
-     * @param {string} classNames is a string representing the class name(s) to match; multiple class names are separated by (ASCII-)whitespace
-     *
-     * @see https://developer.mozilla.org/en-US/docs/Web/API/Document/getElementsByClassName
-     * @see https://dom.spec.whatwg.org/#concept-getelementsbyclassname
-     */
-    getElementsByClassName: function (classNames) {
-      var classNamesSet = toOrderedSet(classNames);
-      return new LiveNodeList(this, function (base) {
-        var ls = [];
-        if (classNamesSet.length > 0) {
-          _visitNode(base.documentElement, function (node) {
-            if (node !== base && node.nodeType === ELEMENT_NODE) {
-              var nodeClassNames = node.getAttribute('class');
-              // can be null if the attribute does not exist
-              if (nodeClassNames) {
-                // before splitting and iterating just compare them for the most common case
-                var matches = classNames === nodeClassNames;
-                if (!matches) {
-                  var nodeClassNamesSet = toOrderedSet(nodeClassNames);
-                  matches = classNamesSet.every(arrayIncludes(nodeClassNamesSet));
-                }
-                if (matches) {
-                  ls.push(node);
-                }
-              }
-            }
-          });
-        }
-        return ls;
-      });
-    },
-    //document factory method:
-    createElement: function (tagName) {
-      var node = new Element();
-      node.ownerDocument = this;
-      node.nodeName = tagName;
-      node.tagName = tagName;
-      node.localName = tagName;
-      node.childNodes = new NodeList();
-      var attrs = node.attributes = new NamedNodeMap();
-      attrs._ownerElement = node;
-      return node;
-    },
-    createDocumentFragment: function () {
-      var node = new DocumentFragment();
-      node.ownerDocument = this;
-      node.childNodes = new NodeList();
-      return node;
-    },
-    createTextNode: function (data) {
-      var node = new Text();
-      node.ownerDocument = this;
-      node.appendData(data);
-      return node;
-    },
-    createComment: function (data) {
-      var node = new Comment();
-      node.ownerDocument = this;
-      node.appendData(data);
-      return node;
-    },
-    createCDATASection: function (data) {
-      var node = new CDATASection();
-      node.ownerDocument = this;
-      node.appendData(data);
-      return node;
-    },
-    createProcessingInstruction: function (target, data) {
-      var node = new ProcessingInstruction();
-      node.ownerDocument = this;
-      node.tagName = node.nodeName = node.target = target;
-      node.nodeValue = node.data = data;
-      return node;
-    },
-    createAttribute: function (name) {
-      var node = new Attr();
-      node.ownerDocument = this;
-      node.name = name;
-      node.nodeName = name;
-      node.localName = name;
-      node.specified = true;
-      return node;
-    },
-    createEntityReference: function (name) {
-      var node = new EntityReference();
-      node.ownerDocument = this;
-      node.nodeName = name;
-      return node;
-    },
-    // Introduced in DOM Level 2:
-    createElementNS: function (namespaceURI, qualifiedName) {
-      var node = new Element();
-      var pl = qualifiedName.split(':');
-      var attrs = node.attributes = new NamedNodeMap();
-      node.childNodes = new NodeList();
-      node.ownerDocument = this;
-      node.nodeName = qualifiedName;
-      node.tagName = qualifiedName;
-      node.namespaceURI = namespaceURI;
-      if (pl.length == 2) {
-        node.prefix = pl[0];
-        node.localName = pl[1];
-      } else {
-        //el.prefix = null;
-        node.localName = qualifiedName;
-      }
-      attrs._ownerElement = node;
-      return node;
-    },
-    // Introduced in DOM Level 2:
-    createAttributeNS: function (namespaceURI, qualifiedName) {
-      var node = new Attr();
-      var pl = qualifiedName.split(':');
-      node.ownerDocument = this;
-      node.nodeName = qualifiedName;
-      node.name = qualifiedName;
-      node.namespaceURI = namespaceURI;
-      node.specified = true;
-      if (pl.length == 2) {
-        node.prefix = pl[0];
-        node.localName = pl[1];
-      } else {
-        //el.prefix = null;
-        node.localName = qualifiedName;
-      }
-      return node;
-    }
-  };
-  _extends(Document, Node);
-  function Element() {
-    this._nsMap = {};
-  }
-  Element.prototype = {
-    nodeType: ELEMENT_NODE,
-    hasAttribute: function (name) {
-      return this.getAttributeNode(name) != null;
-    },
-    getAttribute: function (name) {
-      var attr = this.getAttributeNode(name);
-      return attr && attr.value || '';
-    },
-    getAttributeNode: function (name) {
-      return this.attributes.getNamedItem(name);
-    },
-    setAttribute: function (name, value) {
-      var attr = this.ownerDocument.createAttribute(name);
-      attr.value = attr.nodeValue = "" + value;
-      this.setAttributeNode(attr);
-    },
-    removeAttribute: function (name) {
-      var attr = this.getAttributeNode(name);
-      attr && this.removeAttributeNode(attr);
-    },
-    //four real opeartion method
-    appendChild: function (newChild) {
-      if (newChild.nodeType === DOCUMENT_FRAGMENT_NODE) {
-        return this.insertBefore(newChild, null);
-      } else {
-        return _appendSingleChild(this, newChild);
-      }
-    },
-    setAttributeNode: function (newAttr) {
-      return this.attributes.setNamedItem(newAttr);
-    },
-    setAttributeNodeNS: function (newAttr) {
-      return this.attributes.setNamedItemNS(newAttr);
-    },
-    removeAttributeNode: function (oldAttr) {
-      //console.log(this == oldAttr.ownerElement)
-      return this.attributes.removeNamedItem(oldAttr.nodeName);
-    },
-    //get real attribute name,and remove it by removeAttributeNode
-    removeAttributeNS: function (namespaceURI, localName) {
-      var old = this.getAttributeNodeNS(namespaceURI, localName);
-      old && this.removeAttributeNode(old);
-    },
-    hasAttributeNS: function (namespaceURI, localName) {
-      return this.getAttributeNodeNS(namespaceURI, localName) != null;
-    },
-    getAttributeNS: function (namespaceURI, localName) {
-      var attr = this.getAttributeNodeNS(namespaceURI, localName);
-      return attr && attr.value || '';
-    },
-    setAttributeNS: function (namespaceURI, qualifiedName, value) {
-      var attr = this.ownerDocument.createAttributeNS(namespaceURI, qualifiedName);
-      attr.value = attr.nodeValue = "" + value;
-      this.setAttributeNode(attr);
-    },
-    getAttributeNodeNS: function (namespaceURI, localName) {
-      return this.attributes.getNamedItemNS(namespaceURI, localName);
-    },
-    getElementsByTagName: function (tagName) {
-      return new LiveNodeList(this, function (base) {
-        var ls = [];
-        _visitNode(base, function (node) {
-          if (node !== base && node.nodeType == ELEMENT_NODE && (tagName === '*' || node.tagName == tagName)) {
-            ls.push(node);
-          }
-        });
-        return ls;
-      });
-    },
-    getElementsByTagNameNS: function (namespaceURI, localName) {
-      return new LiveNodeList(this, function (base) {
-        var ls = [];
-        _visitNode(base, function (node) {
-          if (node !== base && node.nodeType === ELEMENT_NODE && (namespaceURI === '*' || node.namespaceURI === namespaceURI) && (localName === '*' || node.localName == localName)) {
-            ls.push(node);
-          }
-        });
-        return ls;
-      });
-    }
-  };
-  Document.prototype.getElementsByTagName = Element.prototype.getElementsByTagName;
-  Document.prototype.getElementsByTagNameNS = Element.prototype.getElementsByTagNameNS;
-  _extends(Element, Node);
-  function Attr() {}
-  Attr.prototype.nodeType = ATTRIBUTE_NODE;
-  _extends(Attr, Node);
-  function CharacterData() {}
-  CharacterData.prototype = {
-    data: '',
-    substringData: function (offset, count) {
-      return this.data.substring(offset, offset + count);
-    },
-    appendData: function (text) {
-      text = this.data + text;
-      this.nodeValue = this.data = text;
-      this.length = text.length;
-    },
-    insertData: function (offset, text) {
-      this.replaceData(offset, 0, text);
-    },
-    appendChild: function (newChild) {
-      throw new Error(ExceptionMessage[HIERARCHY_REQUEST_ERR]);
-    },
-    deleteData: function (offset, count) {
-      this.replaceData(offset, count, "");
-    },
-    replaceData: function (offset, count, text) {
-      var start = this.data.substring(0, offset);
-      var end = this.data.substring(offset + count);
-      text = start + text + end;
-      this.nodeValue = this.data = text;
-      this.length = text.length;
-    }
-  };
-  _extends(CharacterData, Node);
-  function Text() {}
-  Text.prototype = {
-    nodeName: "#text",
-    nodeType: TEXT_NODE,
-    splitText: function (offset) {
-      var text = this.data;
-      var newText = text.substring(offset);
-      text = text.substring(0, offset);
-      this.data = this.nodeValue = text;
-      this.length = text.length;
-      var newNode = this.ownerDocument.createTextNode(newText);
-      if (this.parentNode) {
-        this.parentNode.insertBefore(newNode, this.nextSibling);
-      }
-      return newNode;
-    }
-  };
-  _extends(Text, CharacterData);
-  function Comment() {}
-  Comment.prototype = {
-    nodeName: "#comment",
-    nodeType: COMMENT_NODE
-  };
-  _extends(Comment, CharacterData);
-  function CDATASection() {}
-  CDATASection.prototype = {
-    nodeName: "#cdata-section",
-    nodeType: CDATA_SECTION_NODE
-  };
-  _extends(CDATASection, CharacterData);
-  function DocumentType() {}
-  DocumentType.prototype.nodeType = DOCUMENT_TYPE_NODE;
-  _extends(DocumentType, Node);
-  function Notation() {}
-  Notation.prototype.nodeType = NOTATION_NODE;
-  _extends(Notation, Node);
-  function Entity() {}
-  Entity.prototype.nodeType = ENTITY_NODE;
-  _extends(Entity, Node);
-  function EntityReference() {}
-  EntityReference.prototype.nodeType = ENTITY_REFERENCE_NODE;
-  _extends(EntityReference, Node);
-  function DocumentFragment() {}
-  DocumentFragment.prototype.nodeName = "#document-fragment";
-  DocumentFragment.prototype.nodeType = DOCUMENT_FRAGMENT_NODE;
-  _extends(DocumentFragment, Node);
-  function ProcessingInstruction() {}
-  ProcessingInstruction.prototype.nodeType = PROCESSING_INSTRUCTION_NODE;
-  _extends(ProcessingInstruction, Node);
-  function XMLSerializer() {}
-  XMLSerializer.prototype.serializeToString = function (node, isHtml, nodeFilter) {
-    return nodeSerializeToString.call(node, isHtml, nodeFilter);
-  };
-  Node.prototype.toString = nodeSerializeToString;
-  function nodeSerializeToString(isHtml, nodeFilter) {
-    var buf = [];
-    var refNode = this.nodeType == 9 && this.documentElement || this;
-    var prefix = refNode.prefix;
-    var uri = refNode.namespaceURI;
-    if (uri && prefix == null) {
-      //console.log(prefix)
-      var prefix = refNode.lookupPrefix(uri);
-      if (prefix == null) {
-        //isHTML = true;
-        var visibleNamespaces = [{
-          namespace: uri,
-          prefix: null
-        }
-        //{namespace:uri,prefix:''}
-        ];
-      }
-    }
-
-    serializeToString(this, buf, isHtml, nodeFilter, visibleNamespaces);
-    //console.log('###',this.nodeType,uri,prefix,buf.join(''))
-    return buf.join('');
-  }
-  function needNamespaceDefine(node, isHTML, visibleNamespaces) {
-    var prefix = node.prefix || '';
-    var uri = node.namespaceURI;
-    // According to [Namespaces in XML 1.0](https://www.w3.org/TR/REC-xml-names/#ns-using) ,
-    // and more specifically https://www.w3.org/TR/REC-xml-names/#nsc-NoPrefixUndecl :
-    // > In a namespace declaration for a prefix [...], the attribute value MUST NOT be empty.
-    // in a similar manner [Namespaces in XML 1.1](https://www.w3.org/TR/xml-names11/#ns-using)
-    // and more specifically https://www.w3.org/TR/xml-names11/#nsc-NSDeclared :
-    // > [...] Furthermore, the attribute value [...] must not be an empty string.
-    // so serializing empty namespace value like xmlns:ds="" would produce an invalid XML document.
-    if (!uri) {
-      return false;
-    }
-    if (prefix === "xml" && uri === NAMESPACE$2.XML || uri === NAMESPACE$2.XMLNS) {
-      return false;
-    }
-    var i = visibleNamespaces.length;
-    while (i--) {
-      var ns = visibleNamespaces[i];
-      // get namespace prefix
-      if (ns.prefix === prefix) {
-        return ns.namespace !== uri;
-      }
-    }
-    return true;
-  }
-  /**
-   * Well-formed constraint: No < in Attribute Values
-   * > The replacement text of any entity referred to directly or indirectly
-   * > in an attribute value must not contain a <.
-   * @see https://www.w3.org/TR/xml11/#CleanAttrVals
-   * @see https://www.w3.org/TR/xml11/#NT-AttValue
-   *
-   * Literal whitespace other than space that appear in attribute values
-   * are serialized as their entity references, so they will be preserved.
-   * (In contrast to whitespace literals in the input which are normalized to spaces)
-   * @see https://www.w3.org/TR/xml11/#AVNormalize
-   * @see https://w3c.github.io/DOM-Parsing/#serializing-an-element-s-attributes
-   */
-  function addSerializedAttribute(buf, qualifiedName, value) {
-    buf.push(' ', qualifiedName, '="', value.replace(/[<>&"\t\n\r]/g, _xmlEncoder), '"');
-  }
-  function serializeToString(node, buf, isHTML, nodeFilter, visibleNamespaces) {
-    if (!visibleNamespaces) {
-      visibleNamespaces = [];
-    }
-    if (nodeFilter) {
-      node = nodeFilter(node);
-      if (node) {
-        if (typeof node == 'string') {
-          buf.push(node);
-          return;
-        }
-      } else {
-        return;
-      }
-      //buf.sort.apply(attrs, attributeSorter);
-    }
-
-    switch (node.nodeType) {
-      case ELEMENT_NODE:
-        var attrs = node.attributes;
-        var len = attrs.length;
-        var child = node.firstChild;
-        var nodeName = node.tagName;
-        isHTML = NAMESPACE$2.isHTML(node.namespaceURI) || isHTML;
-        var prefixedNodeName = nodeName;
-        if (!isHTML && !node.prefix && node.namespaceURI) {
-          var defaultNS;
-          // lookup current default ns from `xmlns` attribute
-          for (var ai = 0; ai < attrs.length; ai++) {
-            if (attrs.item(ai).name === 'xmlns') {
-              defaultNS = attrs.item(ai).value;
-              break;
-            }
-          }
-          if (!defaultNS) {
-            // lookup current default ns in visibleNamespaces
-            for (var nsi = visibleNamespaces.length - 1; nsi >= 0; nsi--) {
-              var namespace = visibleNamespaces[nsi];
-              if (namespace.prefix === '' && namespace.namespace === node.namespaceURI) {
-                defaultNS = namespace.namespace;
-                break;
-              }
-            }
-          }
-          if (defaultNS !== node.namespaceURI) {
-            for (var nsi = visibleNamespaces.length - 1; nsi >= 0; nsi--) {
-              var namespace = visibleNamespaces[nsi];
-              if (namespace.namespace === node.namespaceURI) {
-                if (namespace.prefix) {
-                  prefixedNodeName = namespace.prefix + ':' + nodeName;
-                }
-                break;
-              }
-            }
-          }
-        }
-        buf.push('<', prefixedNodeName);
-        for (var i = 0; i < len; i++) {
-          // add namespaces for attributes
-          var attr = attrs.item(i);
-          if (attr.prefix == 'xmlns') {
-            visibleNamespaces.push({
-              prefix: attr.localName,
-              namespace: attr.value
-            });
-          } else if (attr.nodeName == 'xmlns') {
-            visibleNamespaces.push({
-              prefix: '',
-              namespace: attr.value
-            });
-          }
-        }
-        for (var i = 0; i < len; i++) {
-          var attr = attrs.item(i);
-          if (needNamespaceDefine(attr, isHTML, visibleNamespaces)) {
-            var prefix = attr.prefix || '';
-            var uri = attr.namespaceURI;
-            addSerializedAttribute(buf, prefix ? 'xmlns:' + prefix : "xmlns", uri);
-            visibleNamespaces.push({
-              prefix: prefix,
-              namespace: uri
-            });
-          }
-          serializeToString(attr, buf, isHTML, nodeFilter, visibleNamespaces);
-        }
-
-        // add namespace for current node
-        if (nodeName === prefixedNodeName && needNamespaceDefine(node, isHTML, visibleNamespaces)) {
-          var prefix = node.prefix || '';
-          var uri = node.namespaceURI;
-          addSerializedAttribute(buf, prefix ? 'xmlns:' + prefix : "xmlns", uri);
-          visibleNamespaces.push({
-            prefix: prefix,
-            namespace: uri
-          });
-        }
-        if (child || isHTML && !/^(?:meta|link|img|br|hr|input)$/i.test(nodeName)) {
-          buf.push('>');
-          //if is cdata child node
-          if (isHTML && /^script$/i.test(nodeName)) {
-            while (child) {
-              if (child.data) {
-                buf.push(child.data);
-              } else {
-                serializeToString(child, buf, isHTML, nodeFilter, visibleNamespaces.slice());
-              }
-              child = child.nextSibling;
-            }
-          } else {
-            while (child) {
-              serializeToString(child, buf, isHTML, nodeFilter, visibleNamespaces.slice());
-              child = child.nextSibling;
-            }
-          }
-          buf.push('</', prefixedNodeName, '>');
-        } else {
-          buf.push('/>');
-        }
-        // remove added visible namespaces
-        //visibleNamespaces.length = startVisibleNamespaces;
-        return;
-      case DOCUMENT_NODE:
-      case DOCUMENT_FRAGMENT_NODE:
-        var child = node.firstChild;
-        while (child) {
-          serializeToString(child, buf, isHTML, nodeFilter, visibleNamespaces.slice());
-          child = child.nextSibling;
-        }
-        return;
-      case ATTRIBUTE_NODE:
-        return addSerializedAttribute(buf, node.name, node.value);
-      case TEXT_NODE:
-        /**
-         * The ampersand character (&) and the left angle bracket (<) must not appear in their literal form,
-         * except when used as markup delimiters, or within a comment, a processing instruction, or a CDATA section.
-         * If they are needed elsewhere, they must be escaped using either numeric character references or the strings
-         * `&amp;` and `&lt;` respectively.
-         * The right angle bracket (>) may be represented using the string " &gt; ", and must, for compatibility,
-         * be escaped using either `&gt;` or a character reference when it appears in the string `]]>` in content,
-         * when that string is not marking the end of a CDATA section.
-         *
-         * In the content of elements, character data is any string of characters
-         * which does not contain the start-delimiter of any markup
-         * and does not include the CDATA-section-close delimiter, `]]>`.
-         *
-         * @see https://www.w3.org/TR/xml/#NT-CharData
-         * @see https://w3c.github.io/DOM-Parsing/#xml-serializing-a-text-node
-         */
-        return buf.push(node.data.replace(/[<&>]/g, _xmlEncoder));
-      case CDATA_SECTION_NODE:
-        return buf.push('<![CDATA[', node.data, ']]>');
-      case COMMENT_NODE:
-        return buf.push("<!--", node.data, "-->");
-      case DOCUMENT_TYPE_NODE:
-        var pubid = node.publicId;
-        var sysid = node.systemId;
-        buf.push('<!DOCTYPE ', node.name);
-        if (pubid) {
-          buf.push(' PUBLIC ', pubid);
-          if (sysid && sysid != '.') {
-            buf.push(' ', sysid);
-          }
-          buf.push('>');
-        } else if (sysid && sysid != '.') {
-          buf.push(' SYSTEM ', sysid, '>');
-        } else {
-          var sub = node.internalSubset;
-          if (sub) {
-            buf.push(" [", sub, "]");
-          }
-          buf.push(">");
-        }
-        return;
-      case PROCESSING_INSTRUCTION_NODE:
-        return buf.push("<?", node.target, " ", node.data, "?>");
-      case ENTITY_REFERENCE_NODE:
-        return buf.push('&', node.nodeName, ';');
-      //case ENTITY_NODE:
-      //case NOTATION_NODE:
-      default:
-        buf.push('??', node.nodeName);
-    }
-  }
-  function importNode(doc, node, deep) {
-    var node2;
-    switch (node.nodeType) {
-      case ELEMENT_NODE:
-        node2 = node.cloneNode(false);
-        node2.ownerDocument = doc;
-      //var attrs = node2.attributes;
-      //var len = attrs.length;
-      //for(var i=0;i<len;i++){
-      //node2.setAttributeNodeNS(importNode(doc,attrs.item(i),deep));
-      //}
-      case DOCUMENT_FRAGMENT_NODE:
-        break;
-      case ATTRIBUTE_NODE:
-        deep = true;
-        break;
-      //case ENTITY_REFERENCE_NODE:
-      //case PROCESSING_INSTRUCTION_NODE:
-      ////case TEXT_NODE:
-      //case CDATA_SECTION_NODE:
-      //case COMMENT_NODE:
-      //	deep = false;
-      //	break;
-      //case DOCUMENT_NODE:
-      //case DOCUMENT_TYPE_NODE:
-      //cannot be imported.
-      //case ENTITY_NODE:
-      //case NOTATION_NODE：
-      //can not hit in level3
-      //default:throw e;
-    }
-
-    if (!node2) {
-      node2 = node.cloneNode(false); //false
-    }
-
-    node2.ownerDocument = doc;
-    node2.parentNode = null;
-    if (deep) {
-      var child = node.firstChild;
-      while (child) {
-        node2.appendChild(importNode(doc, child, deep));
-        child = child.nextSibling;
-      }
-    }
-    return node2;
-  }
-  //
-  //var _relationMap = {firstChild:1,lastChild:1,previousSibling:1,nextSibling:1,
-  //					attributes:1,childNodes:1,parentNode:1,documentElement:1,doctype,};
-  function cloneNode(doc, node, deep) {
-    var node2 = new node.constructor();
-    for (var n in node) {
-      if (Object.prototype.hasOwnProperty.call(node, n)) {
-        var v = node[n];
-        if (typeof v != "object") {
-          if (v != node2[n]) {
-            node2[n] = v;
-          }
-        }
-      }
-    }
-    if (node.childNodes) {
-      node2.childNodes = new NodeList();
-    }
-    node2.ownerDocument = doc;
-    switch (node2.nodeType) {
-      case ELEMENT_NODE:
-        var attrs = node.attributes;
-        var attrs2 = node2.attributes = new NamedNodeMap();
-        var len = attrs.length;
-        attrs2._ownerElement = node2;
-        for (var i = 0; i < len; i++) {
-          node2.setAttributeNode(cloneNode(doc, attrs.item(i), true));
-        }
-        break;
-      case ATTRIBUTE_NODE:
-        deep = true;
-    }
-    if (deep) {
-      var child = node.firstChild;
-      while (child) {
-        node2.appendChild(cloneNode(doc, child, deep));
-        child = child.nextSibling;
-      }
-    }
-    return node2;
-  }
-  function __set__(object, key, value) {
-    object[key] = value;
-  }
-  //do dynamic
-  try {
-    if (Object.defineProperty) {
-      Object.defineProperty(LiveNodeList.prototype, 'length', {
-        get: function () {
-          _updateLiveList(this);
-          return this.$$length;
-        }
-      });
-      Object.defineProperty(Node.prototype, 'textContent', {
-        get: function () {
-          return getTextContent(this);
-        },
-        set: function (data) {
-          switch (this.nodeType) {
-            case ELEMENT_NODE:
-            case DOCUMENT_FRAGMENT_NODE:
-              while (this.firstChild) {
-                this.removeChild(this.firstChild);
-              }
-              if (data || String(data)) {
-                this.appendChild(this.ownerDocument.createTextNode(data));
-              }
-              break;
-            default:
-              this.data = data;
-              this.value = data;
-              this.nodeValue = data;
-          }
-        }
-      });
-      function getTextContent(node) {
-        switch (node.nodeType) {
-          case ELEMENT_NODE:
-          case DOCUMENT_FRAGMENT_NODE:
-            var buf = [];
-            node = node.firstChild;
-            while (node) {
-              if (node.nodeType !== 7 && node.nodeType !== 8) {
-                buf.push(getTextContent(node));
-              }
-              node = node.nextSibling;
-            }
-            return buf.join('');
-          default:
-            return node.nodeValue;
-        }
-      }
-      __set__ = function (object, key, value) {
-        //console.log(value)
-        object['$$' + key] = value;
-      };
-    }
-  } catch (e) {//ie8
-  }
-
-  //if(typeof require == 'function'){
-  var DocumentType_1 = DocumentType;
-  var DOMException_1 = DOMException;
-  var DOMImplementation_1 = DOMImplementation$1;
-  var Element_1 = Element;
-  var Node_1 = Node;
-  var NodeList_1 = NodeList;
-  var XMLSerializer_1 = XMLSerializer;
-  //}
-
-  var dom = {
-    DocumentType: DocumentType_1,
-    DOMException: DOMException_1,
-    DOMImplementation: DOMImplementation_1,
-    Element: Element_1,
-    Node: Node_1,
-    NodeList: NodeList_1,
-    XMLSerializer: XMLSerializer_1
-  };
-
-  var entities = createCommonjsModule(function (module, exports) {
-
-    var freeze = conventions.freeze;
-
-    /**
-     * The entities that are predefined in every XML document.
-     *
-     * @see https://www.w3.org/TR/2006/REC-xml11-20060816/#sec-predefined-ent W3C XML 1.1
-     * @see https://www.w3.org/TR/2008/REC-xml-20081126/#sec-predefined-ent W3C XML 1.0
-     * @see https://en.wikipedia.org/wiki/List_of_XML_and_HTML_character_entity_references#Predefined_entities_in_XML Wikipedia
-     */
-    exports.XML_ENTITIES = freeze({
-      amp: '&',
-      apos: "'",
-      gt: '>',
-      lt: '<',
-      quot: '"'
-    });
-
-    /**
-     * A map of all entities that are detected in an HTML document.
-     * They contain all entries from `XML_ENTITIES`.
-     *
-     * @see XML_ENTITIES
-     * @see DOMParser.parseFromString
-     * @see DOMImplementation.prototype.createHTMLDocument
-     * @see https://html.spec.whatwg.org/#named-character-references WHATWG HTML(5) Spec
-     * @see https://html.spec.whatwg.org/entities.json JSON
-     * @see https://www.w3.org/TR/xml-entity-names/ W3C XML Entity Names
-     * @see https://www.w3.org/TR/html4/sgml/entities.html W3C HTML4/SGML
-     * @see https://en.wikipedia.org/wiki/List_of_XML_and_HTML_character_entity_references#Character_entity_references_in_HTML Wikipedia (HTML)
-     * @see https://en.wikipedia.org/wiki/List_of_XML_and_HTML_character_entity_references#Entities_representing_special_characters_in_XHTML Wikpedia (XHTML)
-     */
-    exports.HTML_ENTITIES = freeze({
-      Aacute: '\u00C1',
-      aacute: '\u00E1',
-      Abreve: '\u0102',
-      abreve: '\u0103',
-      ac: '\u223E',
-      acd: '\u223F',
-      acE: '\u223E\u0333',
-      Acirc: '\u00C2',
-      acirc: '\u00E2',
-      acute: '\u00B4',
-      Acy: '\u0410',
-      acy: '\u0430',
-      AElig: '\u00C6',
-      aelig: '\u00E6',
-      af: '\u2061',
-      Afr: '\uD835\uDD04',
-      afr: '\uD835\uDD1E',
-      Agrave: '\u00C0',
-      agrave: '\u00E0',
-      alefsym: '\u2135',
-      aleph: '\u2135',
-      Alpha: '\u0391',
-      alpha: '\u03B1',
-      Amacr: '\u0100',
-      amacr: '\u0101',
-      amalg: '\u2A3F',
-      AMP: '\u0026',
-      amp: '\u0026',
-      And: '\u2A53',
-      and: '\u2227',
-      andand: '\u2A55',
-      andd: '\u2A5C',
-      andslope: '\u2A58',
-      andv: '\u2A5A',
-      ang: '\u2220',
-      ange: '\u29A4',
-      angle: '\u2220',
-      angmsd: '\u2221',
-      angmsdaa: '\u29A8',
-      angmsdab: '\u29A9',
-      angmsdac: '\u29AA',
-      angmsdad: '\u29AB',
-      angmsdae: '\u29AC',
-      angmsdaf: '\u29AD',
-      angmsdag: '\u29AE',
-      angmsdah: '\u29AF',
-      angrt: '\u221F',
-      angrtvb: '\u22BE',
-      angrtvbd: '\u299D',
-      angsph: '\u2222',
-      angst: '\u00C5',
-      angzarr: '\u237C',
-      Aogon: '\u0104',
-      aogon: '\u0105',
-      Aopf: '\uD835\uDD38',
-      aopf: '\uD835\uDD52',
-      ap: '\u2248',
-      apacir: '\u2A6F',
-      apE: '\u2A70',
-      ape: '\u224A',
-      apid: '\u224B',
-      apos: '\u0027',
-      ApplyFunction: '\u2061',
-      approx: '\u2248',
-      approxeq: '\u224A',
-      Aring: '\u00C5',
-      aring: '\u00E5',
-      Ascr: '\uD835\uDC9C',
-      ascr: '\uD835\uDCB6',
-      Assign: '\u2254',
-      ast: '\u002A',
-      asymp: '\u2248',
-      asympeq: '\u224D',
-      Atilde: '\u00C3',
-      atilde: '\u00E3',
-      Auml: '\u00C4',
-      auml: '\u00E4',
-      awconint: '\u2233',
-      awint: '\u2A11',
-      backcong: '\u224C',
-      backepsilon: '\u03F6',
-      backprime: '\u2035',
-      backsim: '\u223D',
-      backsimeq: '\u22CD',
-      Backslash: '\u2216',
-      Barv: '\u2AE7',
-      barvee: '\u22BD',
-      Barwed: '\u2306',
-      barwed: '\u2305',
-      barwedge: '\u2305',
-      bbrk: '\u23B5',
-      bbrktbrk: '\u23B6',
-      bcong: '\u224C',
-      Bcy: '\u0411',
-      bcy: '\u0431',
-      bdquo: '\u201E',
-      becaus: '\u2235',
-      Because: '\u2235',
-      because: '\u2235',
-      bemptyv: '\u29B0',
-      bepsi: '\u03F6',
-      bernou: '\u212C',
-      Bernoullis: '\u212C',
-      Beta: '\u0392',
-      beta: '\u03B2',
-      beth: '\u2136',
-      between: '\u226C',
-      Bfr: '\uD835\uDD05',
-      bfr: '\uD835\uDD1F',
-      bigcap: '\u22C2',
-      bigcirc: '\u25EF',
-      bigcup: '\u22C3',
-      bigodot: '\u2A00',
-      bigoplus: '\u2A01',
-      bigotimes: '\u2A02',
-      bigsqcup: '\u2A06',
-      bigstar: '\u2605',
-      bigtriangledown: '\u25BD',
-      bigtriangleup: '\u25B3',
-      biguplus: '\u2A04',
-      bigvee: '\u22C1',
-      bigwedge: '\u22C0',
-      bkarow: '\u290D',
-      blacklozenge: '\u29EB',
-      blacksquare: '\u25AA',
-      blacktriangle: '\u25B4',
-      blacktriangledown: '\u25BE',
-      blacktriangleleft: '\u25C2',
-      blacktriangleright: '\u25B8',
-      blank: '\u2423',
-      blk12: '\u2592',
-      blk14: '\u2591',
-      blk34: '\u2593',
-      block: '\u2588',
-      bne: '\u003D\u20E5',
-      bnequiv: '\u2261\u20E5',
-      bNot: '\u2AED',
-      bnot: '\u2310',
-      Bopf: '\uD835\uDD39',
-      bopf: '\uD835\uDD53',
-      bot: '\u22A5',
-      bottom: '\u22A5',
-      bowtie: '\u22C8',
-      boxbox: '\u29C9',
-      boxDL: '\u2557',
-      boxDl: '\u2556',
-      boxdL: '\u2555',
-      boxdl: '\u2510',
-      boxDR: '\u2554',
-      boxDr: '\u2553',
-      boxdR: '\u2552',
-      boxdr: '\u250C',
-      boxH: '\u2550',
-      boxh: '\u2500',
-      boxHD: '\u2566',
-      boxHd: '\u2564',
-      boxhD: '\u2565',
-      boxhd: '\u252C',
-      boxHU: '\u2569',
-      boxHu: '\u2567',
-      boxhU: '\u2568',
-      boxhu: '\u2534',
-      boxminus: '\u229F',
-      boxplus: '\u229E',
-      boxtimes: '\u22A0',
-      boxUL: '\u255D',
-      boxUl: '\u255C',
-      boxuL: '\u255B',
-      boxul: '\u2518',
-      boxUR: '\u255A',
-      boxUr: '\u2559',
-      boxuR: '\u2558',
-      boxur: '\u2514',
-      boxV: '\u2551',
-      boxv: '\u2502',
-      boxVH: '\u256C',
-      boxVh: '\u256B',
-      boxvH: '\u256A',
-      boxvh: '\u253C',
-      boxVL: '\u2563',
-      boxVl: '\u2562',
-      boxvL: '\u2561',
-      boxvl: '\u2524',
-      boxVR: '\u2560',
-      boxVr: '\u255F',
-      boxvR: '\u255E',
-      boxvr: '\u251C',
-      bprime: '\u2035',
-      Breve: '\u02D8',
-      breve: '\u02D8',
-      brvbar: '\u00A6',
-      Bscr: '\u212C',
-      bscr: '\uD835\uDCB7',
-      bsemi: '\u204F',
-      bsim: '\u223D',
-      bsime: '\u22CD',
-      bsol: '\u005C',
-      bsolb: '\u29C5',
-      bsolhsub: '\u27C8',
-      bull: '\u2022',
-      bullet: '\u2022',
-      bump: '\u224E',
-      bumpE: '\u2AAE',
-      bumpe: '\u224F',
-      Bumpeq: '\u224E',
-      bumpeq: '\u224F',
-      Cacute: '\u0106',
-      cacute: '\u0107',
-      Cap: '\u22D2',
-      cap: '\u2229',
-      capand: '\u2A44',
-      capbrcup: '\u2A49',
-      capcap: '\u2A4B',
-      capcup: '\u2A47',
-      capdot: '\u2A40',
-      CapitalDifferentialD: '\u2145',
-      caps: '\u2229\uFE00',
-      caret: '\u2041',
-      caron: '\u02C7',
-      Cayleys: '\u212D',
-      ccaps: '\u2A4D',
-      Ccaron: '\u010C',
-      ccaron: '\u010D',
-      Ccedil: '\u00C7',
-      ccedil: '\u00E7',
-      Ccirc: '\u0108',
-      ccirc: '\u0109',
-      Cconint: '\u2230',
-      ccups: '\u2A4C',
-      ccupssm: '\u2A50',
-      Cdot: '\u010A',
-      cdot: '\u010B',
-      cedil: '\u00B8',
-      Cedilla: '\u00B8',
-      cemptyv: '\u29B2',
-      cent: '\u00A2',
-      CenterDot: '\u00B7',
-      centerdot: '\u00B7',
-      Cfr: '\u212D',
-      cfr: '\uD835\uDD20',
-      CHcy: '\u0427',
-      chcy: '\u0447',
-      check: '\u2713',
-      checkmark: '\u2713',
-      Chi: '\u03A7',
-      chi: '\u03C7',
-      cir: '\u25CB',
-      circ: '\u02C6',
-      circeq: '\u2257',
-      circlearrowleft: '\u21BA',
-      circlearrowright: '\u21BB',
-      circledast: '\u229B',
-      circledcirc: '\u229A',
-      circleddash: '\u229D',
-      CircleDot: '\u2299',
-      circledR: '\u00AE',
-      circledS: '\u24C8',
-      CircleMinus: '\u2296',
-      CirclePlus: '\u2295',
-      CircleTimes: '\u2297',
-      cirE: '\u29C3',
-      cire: '\u2257',
-      cirfnint: '\u2A10',
-      cirmid: '\u2AEF',
-      cirscir: '\u29C2',
-      ClockwiseContourIntegral: '\u2232',
-      CloseCurlyDoubleQuote: '\u201D',
-      CloseCurlyQuote: '\u2019',
-      clubs: '\u2663',
-      clubsuit: '\u2663',
-      Colon: '\u2237',
-      colon: '\u003A',
-      Colone: '\u2A74',
-      colone: '\u2254',
-      coloneq: '\u2254',
-      comma: '\u002C',
-      commat: '\u0040',
-      comp: '\u2201',
-      compfn: '\u2218',
-      complement: '\u2201',
-      complexes: '\u2102',
-      cong: '\u2245',
-      congdot: '\u2A6D',
-      Congruent: '\u2261',
-      Conint: '\u222F',
-      conint: '\u222E',
-      ContourIntegral: '\u222E',
-      Copf: '\u2102',
-      copf: '\uD835\uDD54',
-      coprod: '\u2210',
-      Coproduct: '\u2210',
-      COPY: '\u00A9',
-      copy: '\u00A9',
-      copysr: '\u2117',
-      CounterClockwiseContourIntegral: '\u2233',
-      crarr: '\u21B5',
-      Cross: '\u2A2F',
-      cross: '\u2717',
-      Cscr: '\uD835\uDC9E',
-      cscr: '\uD835\uDCB8',
-      csub: '\u2ACF',
-      csube: '\u2AD1',
-      csup: '\u2AD0',
-      csupe: '\u2AD2',
-      ctdot: '\u22EF',
-      cudarrl: '\u2938',
-      cudarrr: '\u2935',
-      cuepr: '\u22DE',
-      cuesc: '\u22DF',
-      cularr: '\u21B6',
-      cularrp: '\u293D',
-      Cup: '\u22D3',
-      cup: '\u222A',
-      cupbrcap: '\u2A48',
-      CupCap: '\u224D',
-      cupcap: '\u2A46',
-      cupcup: '\u2A4A',
-      cupdot: '\u228D',
-      cupor: '\u2A45',
-      cups: '\u222A\uFE00',
-      curarr: '\u21B7',
-      curarrm: '\u293C',
-      curlyeqprec: '\u22DE',
-      curlyeqsucc: '\u22DF',
-      curlyvee: '\u22CE',
-      curlywedge: '\u22CF',
-      curren: '\u00A4',
-      curvearrowleft: '\u21B6',
-      curvearrowright: '\u21B7',
-      cuvee: '\u22CE',
-      cuwed: '\u22CF',
-      cwconint: '\u2232',
-      cwint: '\u2231',
-      cylcty: '\u232D',
-      Dagger: '\u2021',
-      dagger: '\u2020',
-      daleth: '\u2138',
-      Darr: '\u21A1',
-      dArr: '\u21D3',
-      darr: '\u2193',
-      dash: '\u2010',
-      Dashv: '\u2AE4',
-      dashv: '\u22A3',
-      dbkarow: '\u290F',
-      dblac: '\u02DD',
-      Dcaron: '\u010E',
-      dcaron: '\u010F',
-      Dcy: '\u0414',
-      dcy: '\u0434',
-      DD: '\u2145',
-      dd: '\u2146',
-      ddagger: '\u2021',
-      ddarr: '\u21CA',
-      DDotrahd: '\u2911',
-      ddotseq: '\u2A77',
-      deg: '\u00B0',
-      Del: '\u2207',
-      Delta: '\u0394',
-      delta: '\u03B4',
-      demptyv: '\u29B1',
-      dfisht: '\u297F',
-      Dfr: '\uD835\uDD07',
-      dfr: '\uD835\uDD21',
-      dHar: '\u2965',
-      dharl: '\u21C3',
-      dharr: '\u21C2',
-      DiacriticalAcute: '\u00B4',
-      DiacriticalDot: '\u02D9',
-      DiacriticalDoubleAcute: '\u02DD',
-      DiacriticalGrave: '\u0060',
-      DiacriticalTilde: '\u02DC',
-      diam: '\u22C4',
-      Diamond: '\u22C4',
-      diamond: '\u22C4',
-      diamondsuit: '\u2666',
-      diams: '\u2666',
-      die: '\u00A8',
-      DifferentialD: '\u2146',
-      digamma: '\u03DD',
-      disin: '\u22F2',
-      div: '\u00F7',
-      divide: '\u00F7',
-      divideontimes: '\u22C7',
-      divonx: '\u22C7',
-      DJcy: '\u0402',
-      djcy: '\u0452',
-      dlcorn: '\u231E',
-      dlcrop: '\u230D',
-      dollar: '\u0024',
-      Dopf: '\uD835\uDD3B',
-      dopf: '\uD835\uDD55',
-      Dot: '\u00A8',
-      dot: '\u02D9',
-      DotDot: '\u20DC',
-      doteq: '\u2250',
-      doteqdot: '\u2251',
-      DotEqual: '\u2250',
-      dotminus: '\u2238',
-      dotplus: '\u2214',
-      dotsquare: '\u22A1',
-      doublebarwedge: '\u2306',
-      DoubleContourIntegral: '\u222F',
-      DoubleDot: '\u00A8',
-      DoubleDownArrow: '\u21D3',
-      DoubleLeftArrow: '\u21D0',
-      DoubleLeftRightArrow: '\u21D4',
-      DoubleLeftTee: '\u2AE4',
-      DoubleLongLeftArrow: '\u27F8',
-      DoubleLongLeftRightArrow: '\u27FA',
-      DoubleLongRightArrow: '\u27F9',
-      DoubleRightArrow: '\u21D2',
-      DoubleRightTee: '\u22A8',
-      DoubleUpArrow: '\u21D1',
-      DoubleUpDownArrow: '\u21D5',
-      DoubleVerticalBar: '\u2225',
-      DownArrow: '\u2193',
-      Downarrow: '\u21D3',
-      downarrow: '\u2193',
-      DownArrowBar: '\u2913',
-      DownArrowUpArrow: '\u21F5',
-      DownBreve: '\u0311',
-      downdownarrows: '\u21CA',
-      downharpoonleft: '\u21C3',
-      downharpoonright: '\u21C2',
-      DownLeftRightVector: '\u2950',
-      DownLeftTeeVector: '\u295E',
-      DownLeftVector: '\u21BD',
-      DownLeftVectorBar: '\u2956',
-      DownRightTeeVector: '\u295F',
-      DownRightVector: '\u21C1',
-      DownRightVectorBar: '\u2957',
-      DownTee: '\u22A4',
-      DownTeeArrow: '\u21A7',
-      drbkarow: '\u2910',
-      drcorn: '\u231F',
-      drcrop: '\u230C',
-      Dscr: '\uD835\uDC9F',
-      dscr: '\uD835\uDCB9',
-      DScy: '\u0405',
-      dscy: '\u0455',
-      dsol: '\u29F6',
-      Dstrok: '\u0110',
-      dstrok: '\u0111',
-      dtdot: '\u22F1',
-      dtri: '\u25BF',
-      dtrif: '\u25BE',
-      duarr: '\u21F5',
-      duhar: '\u296F',
-      dwangle: '\u29A6',
-      DZcy: '\u040F',
-      dzcy: '\u045F',
-      dzigrarr: '\u27FF',
-      Eacute: '\u00C9',
-      eacute: '\u00E9',
-      easter: '\u2A6E',
-      Ecaron: '\u011A',
-      ecaron: '\u011B',
-      ecir: '\u2256',
-      Ecirc: '\u00CA',
-      ecirc: '\u00EA',
-      ecolon: '\u2255',
-      Ecy: '\u042D',
-      ecy: '\u044D',
-      eDDot: '\u2A77',
-      Edot: '\u0116',
-      eDot: '\u2251',
-      edot: '\u0117',
-      ee: '\u2147',
-      efDot: '\u2252',
-      Efr: '\uD835\uDD08',
-      efr: '\uD835\uDD22',
-      eg: '\u2A9A',
-      Egrave: '\u00C8',
-      egrave: '\u00E8',
-      egs: '\u2A96',
-      egsdot: '\u2A98',
-      el: '\u2A99',
-      Element: '\u2208',
-      elinters: '\u23E7',
-      ell: '\u2113',
-      els: '\u2A95',
-      elsdot: '\u2A97',
-      Emacr: '\u0112',
-      emacr: '\u0113',
-      empty: '\u2205',
-      emptyset: '\u2205',
-      EmptySmallSquare: '\u25FB',
-      emptyv: '\u2205',
-      EmptyVerySmallSquare: '\u25AB',
-      emsp: '\u2003',
-      emsp13: '\u2004',
-      emsp14: '\u2005',
-      ENG: '\u014A',
-      eng: '\u014B',
-      ensp: '\u2002',
-      Eogon: '\u0118',
-      eogon: '\u0119',
-      Eopf: '\uD835\uDD3C',
-      eopf: '\uD835\uDD56',
-      epar: '\u22D5',
-      eparsl: '\u29E3',
-      eplus: '\u2A71',
-      epsi: '\u03B5',
-      Epsilon: '\u0395',
-      epsilon: '\u03B5',
-      epsiv: '\u03F5',
-      eqcirc: '\u2256',
-      eqcolon: '\u2255',
-      eqsim: '\u2242',
-      eqslantgtr: '\u2A96',
-      eqslantless: '\u2A95',
-      Equal: '\u2A75',
-      equals: '\u003D',
-      EqualTilde: '\u2242',
-      equest: '\u225F',
-      Equilibrium: '\u21CC',
-      equiv: '\u2261',
-      equivDD: '\u2A78',
-      eqvparsl: '\u29E5',
-      erarr: '\u2971',
-      erDot: '\u2253',
-      Escr: '\u2130',
-      escr: '\u212F',
-      esdot: '\u2250',
-      Esim: '\u2A73',
-      esim: '\u2242',
-      Eta: '\u0397',
-      eta: '\u03B7',
-      ETH: '\u00D0',
-      eth: '\u00F0',
-      Euml: '\u00CB',
-      euml: '\u00EB',
-      euro: '\u20AC',
-      excl: '\u0021',
-      exist: '\u2203',
-      Exists: '\u2203',
-      expectation: '\u2130',
-      ExponentialE: '\u2147',
-      exponentiale: '\u2147',
-      fallingdotseq: '\u2252',
-      Fcy: '\u0424',
-      fcy: '\u0444',
-      female: '\u2640',
-      ffilig: '\uFB03',
-      fflig: '\uFB00',
-      ffllig: '\uFB04',
-      Ffr: '\uD835\uDD09',
-      ffr: '\uD835\uDD23',
-      filig: '\uFB01',
-      FilledSmallSquare: '\u25FC',
-      FilledVerySmallSquare: '\u25AA',
-      fjlig: '\u0066\u006A',
-      flat: '\u266D',
-      fllig: '\uFB02',
-      fltns: '\u25B1',
-      fnof: '\u0192',
-      Fopf: '\uD835\uDD3D',
-      fopf: '\uD835\uDD57',
-      ForAll: '\u2200',
-      forall: '\u2200',
-      fork: '\u22D4',
-      forkv: '\u2AD9',
-      Fouriertrf: '\u2131',
-      fpartint: '\u2A0D',
-      frac12: '\u00BD',
-      frac13: '\u2153',
-      frac14: '\u00BC',
-      frac15: '\u2155',
-      frac16: '\u2159',
-      frac18: '\u215B',
-      frac23: '\u2154',
-      frac25: '\u2156',
-      frac34: '\u00BE',
-      frac35: '\u2157',
-      frac38: '\u215C',
-      frac45: '\u2158',
-      frac56: '\u215A',
-      frac58: '\u215D',
-      frac78: '\u215E',
-      frasl: '\u2044',
-      frown: '\u2322',
-      Fscr: '\u2131',
-      fscr: '\uD835\uDCBB',
-      gacute: '\u01F5',
-      Gamma: '\u0393',
-      gamma: '\u03B3',
-      Gammad: '\u03DC',
-      gammad: '\u03DD',
-      gap: '\u2A86',
-      Gbreve: '\u011E',
-      gbreve: '\u011F',
-      Gcedil: '\u0122',
-      Gcirc: '\u011C',
-      gcirc: '\u011D',
-      Gcy: '\u0413',
-      gcy: '\u0433',
-      Gdot: '\u0120',
-      gdot: '\u0121',
-      gE: '\u2267',
-      ge: '\u2265',
-      gEl: '\u2A8C',
-      gel: '\u22DB',
-      geq: '\u2265',
-      geqq: '\u2267',
-      geqslant: '\u2A7E',
-      ges: '\u2A7E',
-      gescc: '\u2AA9',
-      gesdot: '\u2A80',
-      gesdoto: '\u2A82',
-      gesdotol: '\u2A84',
-      gesl: '\u22DB\uFE00',
-      gesles: '\u2A94',
-      Gfr: '\uD835\uDD0A',
-      gfr: '\uD835\uDD24',
-      Gg: '\u22D9',
-      gg: '\u226B',
-      ggg: '\u22D9',
-      gimel: '\u2137',
-      GJcy: '\u0403',
-      gjcy: '\u0453',
-      gl: '\u2277',
-      gla: '\u2AA5',
-      glE: '\u2A92',
-      glj: '\u2AA4',
-      gnap: '\u2A8A',
-      gnapprox: '\u2A8A',
-      gnE: '\u2269',
-      gne: '\u2A88',
-      gneq: '\u2A88',
-      gneqq: '\u2269',
-      gnsim: '\u22E7',
-      Gopf: '\uD835\uDD3E',
-      gopf: '\uD835\uDD58',
-      grave: '\u0060',
-      GreaterEqual: '\u2265',
-      GreaterEqualLess: '\u22DB',
-      GreaterFullEqual: '\u2267',
-      GreaterGreater: '\u2AA2',
-      GreaterLess: '\u2277',
-      GreaterSlantEqual: '\u2A7E',
-      GreaterTilde: '\u2273',
-      Gscr: '\uD835\uDCA2',
-      gscr: '\u210A',
-      gsim: '\u2273',
-      gsime: '\u2A8E',
-      gsiml: '\u2A90',
-      Gt: '\u226B',
-      GT: '\u003E',
-      gt: '\u003E',
-      gtcc: '\u2AA7',
-      gtcir: '\u2A7A',
-      gtdot: '\u22D7',
-      gtlPar: '\u2995',
-      gtquest: '\u2A7C',
-      gtrapprox: '\u2A86',
-      gtrarr: '\u2978',
-      gtrdot: '\u22D7',
-      gtreqless: '\u22DB',
-      gtreqqless: '\u2A8C',
-      gtrless: '\u2277',
-      gtrsim: '\u2273',
-      gvertneqq: '\u2269\uFE00',
-      gvnE: '\u2269\uFE00',
-      Hacek: '\u02C7',
-      hairsp: '\u200A',
-      half: '\u00BD',
-      hamilt: '\u210B',
-      HARDcy: '\u042A',
-      hardcy: '\u044A',
-      hArr: '\u21D4',
-      harr: '\u2194',
-      harrcir: '\u2948',
-      harrw: '\u21AD',
-      Hat: '\u005E',
-      hbar: '\u210F',
-      Hcirc: '\u0124',
-      hcirc: '\u0125',
-      hearts: '\u2665',
-      heartsuit: '\u2665',
-      hellip: '\u2026',
-      hercon: '\u22B9',
-      Hfr: '\u210C',
-      hfr: '\uD835\uDD25',
-      HilbertSpace: '\u210B',
-      hksearow: '\u2925',
-      hkswarow: '\u2926',
-      hoarr: '\u21FF',
-      homtht: '\u223B',
-      hookleftarrow: '\u21A9',
-      hookrightarrow: '\u21AA',
-      Hopf: '\u210D',
-      hopf: '\uD835\uDD59',
-      horbar: '\u2015',
-      HorizontalLine: '\u2500',
-      Hscr: '\u210B',
-      hscr: '\uD835\uDCBD',
-      hslash: '\u210F',
-      Hstrok: '\u0126',
-      hstrok: '\u0127',
-      HumpDownHump: '\u224E',
-      HumpEqual: '\u224F',
-      hybull: '\u2043',
-      hyphen: '\u2010',
-      Iacute: '\u00CD',
-      iacute: '\u00ED',
-      ic: '\u2063',
-      Icirc: '\u00CE',
-      icirc: '\u00EE',
-      Icy: '\u0418',
-      icy: '\u0438',
-      Idot: '\u0130',
-      IEcy: '\u0415',
-      iecy: '\u0435',
-      iexcl: '\u00A1',
-      iff: '\u21D4',
-      Ifr: '\u2111',
-      ifr: '\uD835\uDD26',
-      Igrave: '\u00CC',
-      igrave: '\u00EC',
-      ii: '\u2148',
-      iiiint: '\u2A0C',
-      iiint: '\u222D',
-      iinfin: '\u29DC',
-      iiota: '\u2129',
-      IJlig: '\u0132',
-      ijlig: '\u0133',
-      Im: '\u2111',
-      Imacr: '\u012A',
-      imacr: '\u012B',
-      image: '\u2111',
-      ImaginaryI: '\u2148',
-      imagline: '\u2110',
-      imagpart: '\u2111',
-      imath: '\u0131',
-      imof: '\u22B7',
-      imped: '\u01B5',
-      Implies: '\u21D2',
-      in: '\u2208',
-      incare: '\u2105',
-      infin: '\u221E',
-      infintie: '\u29DD',
-      inodot: '\u0131',
-      Int: '\u222C',
-      int: '\u222B',
-      intcal: '\u22BA',
-      integers: '\u2124',
-      Integral: '\u222B',
-      intercal: '\u22BA',
-      Intersection: '\u22C2',
-      intlarhk: '\u2A17',
-      intprod: '\u2A3C',
-      InvisibleComma: '\u2063',
-      InvisibleTimes: '\u2062',
-      IOcy: '\u0401',
-      iocy: '\u0451',
-      Iogon: '\u012E',
-      iogon: '\u012F',
-      Iopf: '\uD835\uDD40',
-      iopf: '\uD835\uDD5A',
-      Iota: '\u0399',
-      iota: '\u03B9',
-      iprod: '\u2A3C',
-      iquest: '\u00BF',
-      Iscr: '\u2110',
-      iscr: '\uD835\uDCBE',
-      isin: '\u2208',
-      isindot: '\u22F5',
-      isinE: '\u22F9',
-      isins: '\u22F4',
-      isinsv: '\u22F3',
-      isinv: '\u2208',
-      it: '\u2062',
-      Itilde: '\u0128',
-      itilde: '\u0129',
-      Iukcy: '\u0406',
-      iukcy: '\u0456',
-      Iuml: '\u00CF',
-      iuml: '\u00EF',
-      Jcirc: '\u0134',
-      jcirc: '\u0135',
-      Jcy: '\u0419',
-      jcy: '\u0439',
-      Jfr: '\uD835\uDD0D',
-      jfr: '\uD835\uDD27',
-      jmath: '\u0237',
-      Jopf: '\uD835\uDD41',
-      jopf: '\uD835\uDD5B',
-      Jscr: '\uD835\uDCA5',
-      jscr: '\uD835\uDCBF',
-      Jsercy: '\u0408',
-      jsercy: '\u0458',
-      Jukcy: '\u0404',
-      jukcy: '\u0454',
-      Kappa: '\u039A',
-      kappa: '\u03BA',
-      kappav: '\u03F0',
-      Kcedil: '\u0136',
-      kcedil: '\u0137',
-      Kcy: '\u041A',
-      kcy: '\u043A',
-      Kfr: '\uD835\uDD0E',
-      kfr: '\uD835\uDD28',
-      kgreen: '\u0138',
-      KHcy: '\u0425',
-      khcy: '\u0445',
-      KJcy: '\u040C',
-      kjcy: '\u045C',
-      Kopf: '\uD835\uDD42',
-      kopf: '\uD835\uDD5C',
-      Kscr: '\uD835\uDCA6',
-      kscr: '\uD835\uDCC0',
-      lAarr: '\u21DA',
-      Lacute: '\u0139',
-      lacute: '\u013A',
-      laemptyv: '\u29B4',
-      lagran: '\u2112',
-      Lambda: '\u039B',
-      lambda: '\u03BB',
-      Lang: '\u27EA',
-      lang: '\u27E8',
-      langd: '\u2991',
-      langle: '\u27E8',
-      lap: '\u2A85',
-      Laplacetrf: '\u2112',
-      laquo: '\u00AB',
-      Larr: '\u219E',
-      lArr: '\u21D0',
-      larr: '\u2190',
-      larrb: '\u21E4',
-      larrbfs: '\u291F',
-      larrfs: '\u291D',
-      larrhk: '\u21A9',
-      larrlp: '\u21AB',
-      larrpl: '\u2939',
-      larrsim: '\u2973',
-      larrtl: '\u21A2',
-      lat: '\u2AAB',
-      lAtail: '\u291B',
-      latail: '\u2919',
-      late: '\u2AAD',
-      lates: '\u2AAD\uFE00',
-      lBarr: '\u290E',
-      lbarr: '\u290C',
-      lbbrk: '\u2772',
-      lbrace: '\u007B',
-      lbrack: '\u005B',
-      lbrke: '\u298B',
-      lbrksld: '\u298F',
-      lbrkslu: '\u298D',
-      Lcaron: '\u013D',
-      lcaron: '\u013E',
-      Lcedil: '\u013B',
-      lcedil: '\u013C',
-      lceil: '\u2308',
-      lcub: '\u007B',
-      Lcy: '\u041B',
-      lcy: '\u043B',
-      ldca: '\u2936',
-      ldquo: '\u201C',
-      ldquor: '\u201E',
-      ldrdhar: '\u2967',
-      ldrushar: '\u294B',
-      ldsh: '\u21B2',
-      lE: '\u2266',
-      le: '\u2264',
-      LeftAngleBracket: '\u27E8',
-      LeftArrow: '\u2190',
-      Leftarrow: '\u21D0',
-      leftarrow: '\u2190',
-      LeftArrowBar: '\u21E4',
-      LeftArrowRightArrow: '\u21C6',
-      leftarrowtail: '\u21A2',
-      LeftCeiling: '\u2308',
-      LeftDoubleBracket: '\u27E6',
-      LeftDownTeeVector: '\u2961',
-      LeftDownVector: '\u21C3',
-      LeftDownVectorBar: '\u2959',
-      LeftFloor: '\u230A',
-      leftharpoondown: '\u21BD',
-      leftharpoonup: '\u21BC',
-      leftleftarrows: '\u21C7',
-      LeftRightArrow: '\u2194',
-      Leftrightarrow: '\u21D4',
-      leftrightarrow: '\u2194',
-      leftrightarrows: '\u21C6',
-      leftrightharpoons: '\u21CB',
-      leftrightsquigarrow: '\u21AD',
-      LeftRightVector: '\u294E',
-      LeftTee: '\u22A3',
-      LeftTeeArrow: '\u21A4',
-      LeftTeeVector: '\u295A',
-      leftthreetimes: '\u22CB',
-      LeftTriangle: '\u22B2',
-      LeftTriangleBar: '\u29CF',
-      LeftTriangleEqual: '\u22B4',
-      LeftUpDownVector: '\u2951',
-      LeftUpTeeVector: '\u2960',
-      LeftUpVector: '\u21BF',
-      LeftUpVectorBar: '\u2958',
-      LeftVector: '\u21BC',
-      LeftVectorBar: '\u2952',
-      lEg: '\u2A8B',
-      leg: '\u22DA',
-      leq: '\u2264',
-      leqq: '\u2266',
-      leqslant: '\u2A7D',
-      les: '\u2A7D',
-      lescc: '\u2AA8',
-      lesdot: '\u2A7F',
-      lesdoto: '\u2A81',
-      lesdotor: '\u2A83',
-      lesg: '\u22DA\uFE00',
-      lesges: '\u2A93',
-      lessapprox: '\u2A85',
-      lessdot: '\u22D6',
-      lesseqgtr: '\u22DA',
-      lesseqqgtr: '\u2A8B',
-      LessEqualGreater: '\u22DA',
-      LessFullEqual: '\u2266',
-      LessGreater: '\u2276',
-      lessgtr: '\u2276',
-      LessLess: '\u2AA1',
-      lesssim: '\u2272',
-      LessSlantEqual: '\u2A7D',
-      LessTilde: '\u2272',
-      lfisht: '\u297C',
-      lfloor: '\u230A',
-      Lfr: '\uD835\uDD0F',
-      lfr: '\uD835\uDD29',
-      lg: '\u2276',
-      lgE: '\u2A91',
-      lHar: '\u2962',
-      lhard: '\u21BD',
-      lharu: '\u21BC',
-      lharul: '\u296A',
-      lhblk: '\u2584',
-      LJcy: '\u0409',
-      ljcy: '\u0459',
-      Ll: '\u22D8',
-      ll: '\u226A',
-      llarr: '\u21C7',
-      llcorner: '\u231E',
-      Lleftarrow: '\u21DA',
-      llhard: '\u296B',
-      lltri: '\u25FA',
-      Lmidot: '\u013F',
-      lmidot: '\u0140',
-      lmoust: '\u23B0',
-      lmoustache: '\u23B0',
-      lnap: '\u2A89',
-      lnapprox: '\u2A89',
-      lnE: '\u2268',
-      lne: '\u2A87',
-      lneq: '\u2A87',
-      lneqq: '\u2268',
-      lnsim: '\u22E6',
-      loang: '\u27EC',
-      loarr: '\u21FD',
-      lobrk: '\u27E6',
-      LongLeftArrow: '\u27F5',
-      Longleftarrow: '\u27F8',
-      longleftarrow: '\u27F5',
-      LongLeftRightArrow: '\u27F7',
-      Longleftrightarrow: '\u27FA',
-      longleftrightarrow: '\u27F7',
-      longmapsto: '\u27FC',
-      LongRightArrow: '\u27F6',
-      Longrightarrow: '\u27F9',
-      longrightarrow: '\u27F6',
-      looparrowleft: '\u21AB',
-      looparrowright: '\u21AC',
-      lopar: '\u2985',
-      Lopf: '\uD835\uDD43',
-      lopf: '\uD835\uDD5D',
-      loplus: '\u2A2D',
-      lotimes: '\u2A34',
-      lowast: '\u2217',
-      lowbar: '\u005F',
-      LowerLeftArrow: '\u2199',
-      LowerRightArrow: '\u2198',
-      loz: '\u25CA',
-      lozenge: '\u25CA',
-      lozf: '\u29EB',
-      lpar: '\u0028',
-      lparlt: '\u2993',
-      lrarr: '\u21C6',
-      lrcorner: '\u231F',
-      lrhar: '\u21CB',
-      lrhard: '\u296D',
-      lrm: '\u200E',
-      lrtri: '\u22BF',
-      lsaquo: '\u2039',
-      Lscr: '\u2112',
-      lscr: '\uD835\uDCC1',
-      Lsh: '\u21B0',
-      lsh: '\u21B0',
-      lsim: '\u2272',
-      lsime: '\u2A8D',
-      lsimg: '\u2A8F',
-      lsqb: '\u005B',
-      lsquo: '\u2018',
-      lsquor: '\u201A',
-      Lstrok: '\u0141',
-      lstrok: '\u0142',
-      Lt: '\u226A',
-      LT: '\u003C',
-      lt: '\u003C',
-      ltcc: '\u2AA6',
-      ltcir: '\u2A79',
-      ltdot: '\u22D6',
-      lthree: '\u22CB',
-      ltimes: '\u22C9',
-      ltlarr: '\u2976',
-      ltquest: '\u2A7B',
-      ltri: '\u25C3',
-      ltrie: '\u22B4',
-      ltrif: '\u25C2',
-      ltrPar: '\u2996',
-      lurdshar: '\u294A',
-      luruhar: '\u2966',
-      lvertneqq: '\u2268\uFE00',
-      lvnE: '\u2268\uFE00',
-      macr: '\u00AF',
-      male: '\u2642',
-      malt: '\u2720',
-      maltese: '\u2720',
-      Map: '\u2905',
-      map: '\u21A6',
-      mapsto: '\u21A6',
-      mapstodown: '\u21A7',
-      mapstoleft: '\u21A4',
-      mapstoup: '\u21A5',
-      marker: '\u25AE',
-      mcomma: '\u2A29',
-      Mcy: '\u041C',
-      mcy: '\u043C',
-      mdash: '\u2014',
-      mDDot: '\u223A',
-      measuredangle: '\u2221',
-      MediumSpace: '\u205F',
-      Mellintrf: '\u2133',
-      Mfr: '\uD835\uDD10',
-      mfr: '\uD835\uDD2A',
-      mho: '\u2127',
-      micro: '\u00B5',
-      mid: '\u2223',
-      midast: '\u002A',
-      midcir: '\u2AF0',
-      middot: '\u00B7',
-      minus: '\u2212',
-      minusb: '\u229F',
-      minusd: '\u2238',
-      minusdu: '\u2A2A',
-      MinusPlus: '\u2213',
-      mlcp: '\u2ADB',
-      mldr: '\u2026',
-      mnplus: '\u2213',
-      models: '\u22A7',
-      Mopf: '\uD835\uDD44',
-      mopf: '\uD835\uDD5E',
-      mp: '\u2213',
-      Mscr: '\u2133',
-      mscr: '\uD835\uDCC2',
-      mstpos: '\u223E',
-      Mu: '\u039C',
-      mu: '\u03BC',
-      multimap: '\u22B8',
-      mumap: '\u22B8',
-      nabla: '\u2207',
-      Nacute: '\u0143',
-      nacute: '\u0144',
-      nang: '\u2220\u20D2',
-      nap: '\u2249',
-      napE: '\u2A70\u0338',
-      napid: '\u224B\u0338',
-      napos: '\u0149',
-      napprox: '\u2249',
-      natur: '\u266E',
-      natural: '\u266E',
-      naturals: '\u2115',
-      nbsp: '\u00A0',
-      nbump: '\u224E\u0338',
-      nbumpe: '\u224F\u0338',
-      ncap: '\u2A43',
-      Ncaron: '\u0147',
-      ncaron: '\u0148',
-      Ncedil: '\u0145',
-      ncedil: '\u0146',
-      ncong: '\u2247',
-      ncongdot: '\u2A6D\u0338',
-      ncup: '\u2A42',
-      Ncy: '\u041D',
-      ncy: '\u043D',
-      ndash: '\u2013',
-      ne: '\u2260',
-      nearhk: '\u2924',
-      neArr: '\u21D7',
-      nearr: '\u2197',
-      nearrow: '\u2197',
-      nedot: '\u2250\u0338',
-      NegativeMediumSpace: '\u200B',
-      NegativeThickSpace: '\u200B',
-      NegativeThinSpace: '\u200B',
-      NegativeVeryThinSpace: '\u200B',
-      nequiv: '\u2262',
-      nesear: '\u2928',
-      nesim: '\u2242\u0338',
-      NestedGreaterGreater: '\u226B',
-      NestedLessLess: '\u226A',
-      NewLine: '\u000A',
-      nexist: '\u2204',
-      nexists: '\u2204',
-      Nfr: '\uD835\uDD11',
-      nfr: '\uD835\uDD2B',
-      ngE: '\u2267\u0338',
-      nge: '\u2271',
-      ngeq: '\u2271',
-      ngeqq: '\u2267\u0338',
-      ngeqslant: '\u2A7E\u0338',
-      nges: '\u2A7E\u0338',
-      nGg: '\u22D9\u0338',
-      ngsim: '\u2275',
-      nGt: '\u226B\u20D2',
-      ngt: '\u226F',
-      ngtr: '\u226F',
-      nGtv: '\u226B\u0338',
-      nhArr: '\u21CE',
-      nharr: '\u21AE',
-      nhpar: '\u2AF2',
-      ni: '\u220B',
-      nis: '\u22FC',
-      nisd: '\u22FA',
-      niv: '\u220B',
-      NJcy: '\u040A',
-      njcy: '\u045A',
-      nlArr: '\u21CD',
-      nlarr: '\u219A',
-      nldr: '\u2025',
-      nlE: '\u2266\u0338',
-      nle: '\u2270',
-      nLeftarrow: '\u21CD',
-      nleftarrow: '\u219A',
-      nLeftrightarrow: '\u21CE',
-      nleftrightarrow: '\u21AE',
-      nleq: '\u2270',
-      nleqq: '\u2266\u0338',
-      nleqslant: '\u2A7D\u0338',
-      nles: '\u2A7D\u0338',
-      nless: '\u226E',
-      nLl: '\u22D8\u0338',
-      nlsim: '\u2274',
-      nLt: '\u226A\u20D2',
-      nlt: '\u226E',
-      nltri: '\u22EA',
-      nltrie: '\u22EC',
-      nLtv: '\u226A\u0338',
-      nmid: '\u2224',
-      NoBreak: '\u2060',
-      NonBreakingSpace: '\u00A0',
-      Nopf: '\u2115',
-      nopf: '\uD835\uDD5F',
-      Not: '\u2AEC',
-      not: '\u00AC',
-      NotCongruent: '\u2262',
-      NotCupCap: '\u226D',
-      NotDoubleVerticalBar: '\u2226',
-      NotElement: '\u2209',
-      NotEqual: '\u2260',
-      NotEqualTilde: '\u2242\u0338',
-      NotExists: '\u2204',
-      NotGreater: '\u226F',
-      NotGreaterEqual: '\u2271',
-      NotGreaterFullEqual: '\u2267\u0338',
-      NotGreaterGreater: '\u226B\u0338',
-      NotGreaterLess: '\u2279',
-      NotGreaterSlantEqual: '\u2A7E\u0338',
-      NotGreaterTilde: '\u2275',
-      NotHumpDownHump: '\u224E\u0338',
-      NotHumpEqual: '\u224F\u0338',
-      notin: '\u2209',
-      notindot: '\u22F5\u0338',
-      notinE: '\u22F9\u0338',
-      notinva: '\u2209',
-      notinvb: '\u22F7',
-      notinvc: '\u22F6',
-      NotLeftTriangle: '\u22EA',
-      NotLeftTriangleBar: '\u29CF\u0338',
-      NotLeftTriangleEqual: '\u22EC',
-      NotLess: '\u226E',
-      NotLessEqual: '\u2270',
-      NotLessGreater: '\u2278',
-      NotLessLess: '\u226A\u0338',
-      NotLessSlantEqual: '\u2A7D\u0338',
-      NotLessTilde: '\u2274',
-      NotNestedGreaterGreater: '\u2AA2\u0338',
-      NotNestedLessLess: '\u2AA1\u0338',
-      notni: '\u220C',
-      notniva: '\u220C',
-      notnivb: '\u22FE',
-      notnivc: '\u22FD',
-      NotPrecedes: '\u2280',
-      NotPrecedesEqual: '\u2AAF\u0338',
-      NotPrecedesSlantEqual: '\u22E0',
-      NotReverseElement: '\u220C',
-      NotRightTriangle: '\u22EB',
-      NotRightTriangleBar: '\u29D0\u0338',
-      NotRightTriangleEqual: '\u22ED',
-      NotSquareSubset: '\u228F\u0338',
-      NotSquareSubsetEqual: '\u22E2',
-      NotSquareSuperset: '\u2290\u0338',
-      NotSquareSupersetEqual: '\u22E3',
-      NotSubset: '\u2282\u20D2',
-      NotSubsetEqual: '\u2288',
-      NotSucceeds: '\u2281',
-      NotSucceedsEqual: '\u2AB0\u0338',
-      NotSucceedsSlantEqual: '\u22E1',
-      NotSucceedsTilde: '\u227F\u0338',
-      NotSuperset: '\u2283\u20D2',
-      NotSupersetEqual: '\u2289',
-      NotTilde: '\u2241',
-      NotTildeEqual: '\u2244',
-      NotTildeFullEqual: '\u2247',
-      NotTildeTilde: '\u2249',
-      NotVerticalBar: '\u2224',
-      npar: '\u2226',
-      nparallel: '\u2226',
-      nparsl: '\u2AFD\u20E5',
-      npart: '\u2202\u0338',
-      npolint: '\u2A14',
-      npr: '\u2280',
-      nprcue: '\u22E0',
-      npre: '\u2AAF\u0338',
-      nprec: '\u2280',
-      npreceq: '\u2AAF\u0338',
-      nrArr: '\u21CF',
-      nrarr: '\u219B',
-      nrarrc: '\u2933\u0338',
-      nrarrw: '\u219D\u0338',
-      nRightarrow: '\u21CF',
-      nrightarrow: '\u219B',
-      nrtri: '\u22EB',
-      nrtrie: '\u22ED',
-      nsc: '\u2281',
-      nsccue: '\u22E1',
-      nsce: '\u2AB0\u0338',
-      Nscr: '\uD835\uDCA9',
-      nscr: '\uD835\uDCC3',
-      nshortmid: '\u2224',
-      nshortparallel: '\u2226',
-      nsim: '\u2241',
-      nsime: '\u2244',
-      nsimeq: '\u2244',
-      nsmid: '\u2224',
-      nspar: '\u2226',
-      nsqsube: '\u22E2',
-      nsqsupe: '\u22E3',
-      nsub: '\u2284',
-      nsubE: '\u2AC5\u0338',
-      nsube: '\u2288',
-      nsubset: '\u2282\u20D2',
-      nsubseteq: '\u2288',
-      nsubseteqq: '\u2AC5\u0338',
-      nsucc: '\u2281',
-      nsucceq: '\u2AB0\u0338',
-      nsup: '\u2285',
-      nsupE: '\u2AC6\u0338',
-      nsupe: '\u2289',
-      nsupset: '\u2283\u20D2',
-      nsupseteq: '\u2289',
-      nsupseteqq: '\u2AC6\u0338',
-      ntgl: '\u2279',
-      Ntilde: '\u00D1',
-      ntilde: '\u00F1',
-      ntlg: '\u2278',
-      ntriangleleft: '\u22EA',
-      ntrianglelefteq: '\u22EC',
-      ntriangleright: '\u22EB',
-      ntrianglerighteq: '\u22ED',
-      Nu: '\u039D',
-      nu: '\u03BD',
-      num: '\u0023',
-      numero: '\u2116',
-      numsp: '\u2007',
-      nvap: '\u224D\u20D2',
-      nVDash: '\u22AF',
-      nVdash: '\u22AE',
-      nvDash: '\u22AD',
-      nvdash: '\u22AC',
-      nvge: '\u2265\u20D2',
-      nvgt: '\u003E\u20D2',
-      nvHarr: '\u2904',
-      nvinfin: '\u29DE',
-      nvlArr: '\u2902',
-      nvle: '\u2264\u20D2',
-      nvlt: '\u003C\u20D2',
-      nvltrie: '\u22B4\u20D2',
-      nvrArr: '\u2903',
-      nvrtrie: '\u22B5\u20D2',
-      nvsim: '\u223C\u20D2',
-      nwarhk: '\u2923',
-      nwArr: '\u21D6',
-      nwarr: '\u2196',
-      nwarrow: '\u2196',
-      nwnear: '\u2927',
-      Oacute: '\u00D3',
-      oacute: '\u00F3',
-      oast: '\u229B',
-      ocir: '\u229A',
-      Ocirc: '\u00D4',
-      ocirc: '\u00F4',
-      Ocy: '\u041E',
-      ocy: '\u043E',
-      odash: '\u229D',
-      Odblac: '\u0150',
-      odblac: '\u0151',
-      odiv: '\u2A38',
-      odot: '\u2299',
-      odsold: '\u29BC',
-      OElig: '\u0152',
-      oelig: '\u0153',
-      ofcir: '\u29BF',
-      Ofr: '\uD835\uDD12',
-      ofr: '\uD835\uDD2C',
-      ogon: '\u02DB',
-      Ograve: '\u00D2',
-      ograve: '\u00F2',
-      ogt: '\u29C1',
-      ohbar: '\u29B5',
-      ohm: '\u03A9',
-      oint: '\u222E',
-      olarr: '\u21BA',
-      olcir: '\u29BE',
-      olcross: '\u29BB',
-      oline: '\u203E',
-      olt: '\u29C0',
-      Omacr: '\u014C',
-      omacr: '\u014D',
-      Omega: '\u03A9',
-      omega: '\u03C9',
-      Omicron: '\u039F',
-      omicron: '\u03BF',
-      omid: '\u29B6',
-      ominus: '\u2296',
-      Oopf: '\uD835\uDD46',
-      oopf: '\uD835\uDD60',
-      opar: '\u29B7',
-      OpenCurlyDoubleQuote: '\u201C',
-      OpenCurlyQuote: '\u2018',
-      operp: '\u29B9',
-      oplus: '\u2295',
-      Or: '\u2A54',
-      or: '\u2228',
-      orarr: '\u21BB',
-      ord: '\u2A5D',
-      order: '\u2134',
-      orderof: '\u2134',
-      ordf: '\u00AA',
-      ordm: '\u00BA',
-      origof: '\u22B6',
-      oror: '\u2A56',
-      orslope: '\u2A57',
-      orv: '\u2A5B',
-      oS: '\u24C8',
-      Oscr: '\uD835\uDCAA',
-      oscr: '\u2134',
-      Oslash: '\u00D8',
-      oslash: '\u00F8',
-      osol: '\u2298',
-      Otilde: '\u00D5',
-      otilde: '\u00F5',
-      Otimes: '\u2A37',
-      otimes: '\u2297',
-      otimesas: '\u2A36',
-      Ouml: '\u00D6',
-      ouml: '\u00F6',
-      ovbar: '\u233D',
-      OverBar: '\u203E',
-      OverBrace: '\u23DE',
-      OverBracket: '\u23B4',
-      OverParenthesis: '\u23DC',
-      par: '\u2225',
-      para: '\u00B6',
-      parallel: '\u2225',
-      parsim: '\u2AF3',
-      parsl: '\u2AFD',
-      part: '\u2202',
-      PartialD: '\u2202',
-      Pcy: '\u041F',
-      pcy: '\u043F',
-      percnt: '\u0025',
-      period: '\u002E',
-      permil: '\u2030',
-      perp: '\u22A5',
-      pertenk: '\u2031',
-      Pfr: '\uD835\uDD13',
-      pfr: '\uD835\uDD2D',
-      Phi: '\u03A6',
-      phi: '\u03C6',
-      phiv: '\u03D5',
-      phmmat: '\u2133',
-      phone: '\u260E',
-      Pi: '\u03A0',
-      pi: '\u03C0',
-      pitchfork: '\u22D4',
-      piv: '\u03D6',
-      planck: '\u210F',
-      planckh: '\u210E',
-      plankv: '\u210F',
-      plus: '\u002B',
-      plusacir: '\u2A23',
-      plusb: '\u229E',
-      pluscir: '\u2A22',
-      plusdo: '\u2214',
-      plusdu: '\u2A25',
-      pluse: '\u2A72',
-      PlusMinus: '\u00B1',
-      plusmn: '\u00B1',
-      plussim: '\u2A26',
-      plustwo: '\u2A27',
-      pm: '\u00B1',
-      Poincareplane: '\u210C',
-      pointint: '\u2A15',
-      Popf: '\u2119',
-      popf: '\uD835\uDD61',
-      pound: '\u00A3',
-      Pr: '\u2ABB',
-      pr: '\u227A',
-      prap: '\u2AB7',
-      prcue: '\u227C',
-      prE: '\u2AB3',
-      pre: '\u2AAF',
-      prec: '\u227A',
-      precapprox: '\u2AB7',
-      preccurlyeq: '\u227C',
-      Precedes: '\u227A',
-      PrecedesEqual: '\u2AAF',
-      PrecedesSlantEqual: '\u227C',
-      PrecedesTilde: '\u227E',
-      preceq: '\u2AAF',
-      precnapprox: '\u2AB9',
-      precneqq: '\u2AB5',
-      precnsim: '\u22E8',
-      precsim: '\u227E',
-      Prime: '\u2033',
-      prime: '\u2032',
-      primes: '\u2119',
-      prnap: '\u2AB9',
-      prnE: '\u2AB5',
-      prnsim: '\u22E8',
-      prod: '\u220F',
-      Product: '\u220F',
-      profalar: '\u232E',
-      profline: '\u2312',
-      profsurf: '\u2313',
-      prop: '\u221D',
-      Proportion: '\u2237',
-      Proportional: '\u221D',
-      propto: '\u221D',
-      prsim: '\u227E',
-      prurel: '\u22B0',
-      Pscr: '\uD835\uDCAB',
-      pscr: '\uD835\uDCC5',
-      Psi: '\u03A8',
-      psi: '\u03C8',
-      puncsp: '\u2008',
-      Qfr: '\uD835\uDD14',
-      qfr: '\uD835\uDD2E',
-      qint: '\u2A0C',
-      Qopf: '\u211A',
-      qopf: '\uD835\uDD62',
-      qprime: '\u2057',
-      Qscr: '\uD835\uDCAC',
-      qscr: '\uD835\uDCC6',
-      quaternions: '\u210D',
-      quatint: '\u2A16',
-      quest: '\u003F',
-      questeq: '\u225F',
-      QUOT: '\u0022',
-      quot: '\u0022',
-      rAarr: '\u21DB',
-      race: '\u223D\u0331',
-      Racute: '\u0154',
-      racute: '\u0155',
-      radic: '\u221A',
-      raemptyv: '\u29B3',
-      Rang: '\u27EB',
-      rang: '\u27E9',
-      rangd: '\u2992',
-      range: '\u29A5',
-      rangle: '\u27E9',
-      raquo: '\u00BB',
-      Rarr: '\u21A0',
-      rArr: '\u21D2',
-      rarr: '\u2192',
-      rarrap: '\u2975',
-      rarrb: '\u21E5',
-      rarrbfs: '\u2920',
-      rarrc: '\u2933',
-      rarrfs: '\u291E',
-      rarrhk: '\u21AA',
-      rarrlp: '\u21AC',
-      rarrpl: '\u2945',
-      rarrsim: '\u2974',
-      Rarrtl: '\u2916',
-      rarrtl: '\u21A3',
-      rarrw: '\u219D',
-      rAtail: '\u291C',
-      ratail: '\u291A',
-      ratio: '\u2236',
-      rationals: '\u211A',
-      RBarr: '\u2910',
-      rBarr: '\u290F',
-      rbarr: '\u290D',
-      rbbrk: '\u2773',
-      rbrace: '\u007D',
-      rbrack: '\u005D',
-      rbrke: '\u298C',
-      rbrksld: '\u298E',
-      rbrkslu: '\u2990',
-      Rcaron: '\u0158',
-      rcaron: '\u0159',
-      Rcedil: '\u0156',
-      rcedil: '\u0157',
-      rceil: '\u2309',
-      rcub: '\u007D',
-      Rcy: '\u0420',
-      rcy: '\u0440',
-      rdca: '\u2937',
-      rdldhar: '\u2969',
-      rdquo: '\u201D',
-      rdquor: '\u201D',
-      rdsh: '\u21B3',
-      Re: '\u211C',
-      real: '\u211C',
-      realine: '\u211B',
-      realpart: '\u211C',
-      reals: '\u211D',
-      rect: '\u25AD',
-      REG: '\u00AE',
-      reg: '\u00AE',
-      ReverseElement: '\u220B',
-      ReverseEquilibrium: '\u21CB',
-      ReverseUpEquilibrium: '\u296F',
-      rfisht: '\u297D',
-      rfloor: '\u230B',
-      Rfr: '\u211C',
-      rfr: '\uD835\uDD2F',
-      rHar: '\u2964',
-      rhard: '\u21C1',
-      rharu: '\u21C0',
-      rharul: '\u296C',
-      Rho: '\u03A1',
-      rho: '\u03C1',
-      rhov: '\u03F1',
-      RightAngleBracket: '\u27E9',
-      RightArrow: '\u2192',
-      Rightarrow: '\u21D2',
-      rightarrow: '\u2192',
-      RightArrowBar: '\u21E5',
-      RightArrowLeftArrow: '\u21C4',
-      rightarrowtail: '\u21A3',
-      RightCeiling: '\u2309',
-      RightDoubleBracket: '\u27E7',
-      RightDownTeeVector: '\u295D',
-      RightDownVector: '\u21C2',
-      RightDownVectorBar: '\u2955',
-      RightFloor: '\u230B',
-      rightharpoondown: '\u21C1',
-      rightharpoonup: '\u21C0',
-      rightleftarrows: '\u21C4',
-      rightleftharpoons: '\u21CC',
-      rightrightarrows: '\u21C9',
-      rightsquigarrow: '\u219D',
-      RightTee: '\u22A2',
-      RightTeeArrow: '\u21A6',
-      RightTeeVector: '\u295B',
-      rightthreetimes: '\u22CC',
-      RightTriangle: '\u22B3',
-      RightTriangleBar: '\u29D0',
-      RightTriangleEqual: '\u22B5',
-      RightUpDownVector: '\u294F',
-      RightUpTeeVector: '\u295C',
-      RightUpVector: '\u21BE',
-      RightUpVectorBar: '\u2954',
-      RightVector: '\u21C0',
-      RightVectorBar: '\u2953',
-      ring: '\u02DA',
-      risingdotseq: '\u2253',
-      rlarr: '\u21C4',
-      rlhar: '\u21CC',
-      rlm: '\u200F',
-      rmoust: '\u23B1',
-      rmoustache: '\u23B1',
-      rnmid: '\u2AEE',
-      roang: '\u27ED',
-      roarr: '\u21FE',
-      robrk: '\u27E7',
-      ropar: '\u2986',
-      Ropf: '\u211D',
-      ropf: '\uD835\uDD63',
-      roplus: '\u2A2E',
-      rotimes: '\u2A35',
-      RoundImplies: '\u2970',
-      rpar: '\u0029',
-      rpargt: '\u2994',
-      rppolint: '\u2A12',
-      rrarr: '\u21C9',
-      Rrightarrow: '\u21DB',
-      rsaquo: '\u203A',
-      Rscr: '\u211B',
-      rscr: '\uD835\uDCC7',
-      Rsh: '\u21B1',
-      rsh: '\u21B1',
-      rsqb: '\u005D',
-      rsquo: '\u2019',
-      rsquor: '\u2019',
-      rthree: '\u22CC',
-      rtimes: '\u22CA',
-      rtri: '\u25B9',
-      rtrie: '\u22B5',
-      rtrif: '\u25B8',
-      rtriltri: '\u29CE',
-      RuleDelayed: '\u29F4',
-      ruluhar: '\u2968',
-      rx: '\u211E',
-      Sacute: '\u015A',
-      sacute: '\u015B',
-      sbquo: '\u201A',
-      Sc: '\u2ABC',
-      sc: '\u227B',
-      scap: '\u2AB8',
-      Scaron: '\u0160',
-      scaron: '\u0161',
-      sccue: '\u227D',
-      scE: '\u2AB4',
-      sce: '\u2AB0',
-      Scedil: '\u015E',
-      scedil: '\u015F',
-      Scirc: '\u015C',
-      scirc: '\u015D',
-      scnap: '\u2ABA',
-      scnE: '\u2AB6',
-      scnsim: '\u22E9',
-      scpolint: '\u2A13',
-      scsim: '\u227F',
-      Scy: '\u0421',
-      scy: '\u0441',
-      sdot: '\u22C5',
-      sdotb: '\u22A1',
-      sdote: '\u2A66',
-      searhk: '\u2925',
-      seArr: '\u21D8',
-      searr: '\u2198',
-      searrow: '\u2198',
-      sect: '\u00A7',
-      semi: '\u003B',
-      seswar: '\u2929',
-      setminus: '\u2216',
-      setmn: '\u2216',
-      sext: '\u2736',
-      Sfr: '\uD835\uDD16',
-      sfr: '\uD835\uDD30',
-      sfrown: '\u2322',
-      sharp: '\u266F',
-      SHCHcy: '\u0429',
-      shchcy: '\u0449',
-      SHcy: '\u0428',
-      shcy: '\u0448',
-      ShortDownArrow: '\u2193',
-      ShortLeftArrow: '\u2190',
-      shortmid: '\u2223',
-      shortparallel: '\u2225',
-      ShortRightArrow: '\u2192',
-      ShortUpArrow: '\u2191',
-      shy: '\u00AD',
-      Sigma: '\u03A3',
-      sigma: '\u03C3',
-      sigmaf: '\u03C2',
-      sigmav: '\u03C2',
-      sim: '\u223C',
-      simdot: '\u2A6A',
-      sime: '\u2243',
-      simeq: '\u2243',
-      simg: '\u2A9E',
-      simgE: '\u2AA0',
-      siml: '\u2A9D',
-      simlE: '\u2A9F',
-      simne: '\u2246',
-      simplus: '\u2A24',
-      simrarr: '\u2972',
-      slarr: '\u2190',
-      SmallCircle: '\u2218',
-      smallsetminus: '\u2216',
-      smashp: '\u2A33',
-      smeparsl: '\u29E4',
-      smid: '\u2223',
-      smile: '\u2323',
-      smt: '\u2AAA',
-      smte: '\u2AAC',
-      smtes: '\u2AAC\uFE00',
-      SOFTcy: '\u042C',
-      softcy: '\u044C',
-      sol: '\u002F',
-      solb: '\u29C4',
-      solbar: '\u233F',
-      Sopf: '\uD835\uDD4A',
-      sopf: '\uD835\uDD64',
-      spades: '\u2660',
-      spadesuit: '\u2660',
-      spar: '\u2225',
-      sqcap: '\u2293',
-      sqcaps: '\u2293\uFE00',
-      sqcup: '\u2294',
-      sqcups: '\u2294\uFE00',
-      Sqrt: '\u221A',
-      sqsub: '\u228F',
-      sqsube: '\u2291',
-      sqsubset: '\u228F',
-      sqsubseteq: '\u2291',
-      sqsup: '\u2290',
-      sqsupe: '\u2292',
-      sqsupset: '\u2290',
-      sqsupseteq: '\u2292',
-      squ: '\u25A1',
-      Square: '\u25A1',
-      square: '\u25A1',
-      SquareIntersection: '\u2293',
-      SquareSubset: '\u228F',
-      SquareSubsetEqual: '\u2291',
-      SquareSuperset: '\u2290',
-      SquareSupersetEqual: '\u2292',
-      SquareUnion: '\u2294',
-      squarf: '\u25AA',
-      squf: '\u25AA',
-      srarr: '\u2192',
-      Sscr: '\uD835\uDCAE',
-      sscr: '\uD835\uDCC8',
-      ssetmn: '\u2216',
-      ssmile: '\u2323',
-      sstarf: '\u22C6',
-      Star: '\u22C6',
-      star: '\u2606',
-      starf: '\u2605',
-      straightepsilon: '\u03F5',
-      straightphi: '\u03D5',
-      strns: '\u00AF',
-      Sub: '\u22D0',
-      sub: '\u2282',
-      subdot: '\u2ABD',
-      subE: '\u2AC5',
-      sube: '\u2286',
-      subedot: '\u2AC3',
-      submult: '\u2AC1',
-      subnE: '\u2ACB',
-      subne: '\u228A',
-      subplus: '\u2ABF',
-      subrarr: '\u2979',
-      Subset: '\u22D0',
-      subset: '\u2282',
-      subseteq: '\u2286',
-      subseteqq: '\u2AC5',
-      SubsetEqual: '\u2286',
-      subsetneq: '\u228A',
-      subsetneqq: '\u2ACB',
-      subsim: '\u2AC7',
-      subsub: '\u2AD5',
-      subsup: '\u2AD3',
-      succ: '\u227B',
-      succapprox: '\u2AB8',
-      succcurlyeq: '\u227D',
-      Succeeds: '\u227B',
-      SucceedsEqual: '\u2AB0',
-      SucceedsSlantEqual: '\u227D',
-      SucceedsTilde: '\u227F',
-      succeq: '\u2AB0',
-      succnapprox: '\u2ABA',
-      succneqq: '\u2AB6',
-      succnsim: '\u22E9',
-      succsim: '\u227F',
-      SuchThat: '\u220B',
-      Sum: '\u2211',
-      sum: '\u2211',
-      sung: '\u266A',
-      Sup: '\u22D1',
-      sup: '\u2283',
-      sup1: '\u00B9',
-      sup2: '\u00B2',
-      sup3: '\u00B3',
-      supdot: '\u2ABE',
-      supdsub: '\u2AD8',
-      supE: '\u2AC6',
-      supe: '\u2287',
-      supedot: '\u2AC4',
-      Superset: '\u2283',
-      SupersetEqual: '\u2287',
-      suphsol: '\u27C9',
-      suphsub: '\u2AD7',
-      suplarr: '\u297B',
-      supmult: '\u2AC2',
-      supnE: '\u2ACC',
-      supne: '\u228B',
-      supplus: '\u2AC0',
-      Supset: '\u22D1',
-      supset: '\u2283',
-      supseteq: '\u2287',
-      supseteqq: '\u2AC6',
-      supsetneq: '\u228B',
-      supsetneqq: '\u2ACC',
-      supsim: '\u2AC8',
-      supsub: '\u2AD4',
-      supsup: '\u2AD6',
-      swarhk: '\u2926',
-      swArr: '\u21D9',
-      swarr: '\u2199',
-      swarrow: '\u2199',
-      swnwar: '\u292A',
-      szlig: '\u00DF',
-      Tab: '\u0009',
-      target: '\u2316',
-      Tau: '\u03A4',
-      tau: '\u03C4',
-      tbrk: '\u23B4',
-      Tcaron: '\u0164',
-      tcaron: '\u0165',
-      Tcedil: '\u0162',
-      tcedil: '\u0163',
-      Tcy: '\u0422',
-      tcy: '\u0442',
-      tdot: '\u20DB',
-      telrec: '\u2315',
-      Tfr: '\uD835\uDD17',
-      tfr: '\uD835\uDD31',
-      there4: '\u2234',
-      Therefore: '\u2234',
-      therefore: '\u2234',
-      Theta: '\u0398',
-      theta: '\u03B8',
-      thetasym: '\u03D1',
-      thetav: '\u03D1',
-      thickapprox: '\u2248',
-      thicksim: '\u223C',
-      ThickSpace: '\u205F\u200A',
-      thinsp: '\u2009',
-      ThinSpace: '\u2009',
-      thkap: '\u2248',
-      thksim: '\u223C',
-      THORN: '\u00DE',
-      thorn: '\u00FE',
-      Tilde: '\u223C',
-      tilde: '\u02DC',
-      TildeEqual: '\u2243',
-      TildeFullEqual: '\u2245',
-      TildeTilde: '\u2248',
-      times: '\u00D7',
-      timesb: '\u22A0',
-      timesbar: '\u2A31',
-      timesd: '\u2A30',
-      tint: '\u222D',
-      toea: '\u2928',
-      top: '\u22A4',
-      topbot: '\u2336',
-      topcir: '\u2AF1',
-      Topf: '\uD835\uDD4B',
-      topf: '\uD835\uDD65',
-      topfork: '\u2ADA',
-      tosa: '\u2929',
-      tprime: '\u2034',
-      TRADE: '\u2122',
-      trade: '\u2122',
-      triangle: '\u25B5',
-      triangledown: '\u25BF',
-      triangleleft: '\u25C3',
-      trianglelefteq: '\u22B4',
-      triangleq: '\u225C',
-      triangleright: '\u25B9',
-      trianglerighteq: '\u22B5',
-      tridot: '\u25EC',
-      trie: '\u225C',
-      triminus: '\u2A3A',
-      TripleDot: '\u20DB',
-      triplus: '\u2A39',
-      trisb: '\u29CD',
-      tritime: '\u2A3B',
-      trpezium: '\u23E2',
-      Tscr: '\uD835\uDCAF',
-      tscr: '\uD835\uDCC9',
-      TScy: '\u0426',
-      tscy: '\u0446',
-      TSHcy: '\u040B',
-      tshcy: '\u045B',
-      Tstrok: '\u0166',
-      tstrok: '\u0167',
-      twixt: '\u226C',
-      twoheadleftarrow: '\u219E',
-      twoheadrightarrow: '\u21A0',
-      Uacute: '\u00DA',
-      uacute: '\u00FA',
-      Uarr: '\u219F',
-      uArr: '\u21D1',
-      uarr: '\u2191',
-      Uarrocir: '\u2949',
-      Ubrcy: '\u040E',
-      ubrcy: '\u045E',
-      Ubreve: '\u016C',
-      ubreve: '\u016D',
-      Ucirc: '\u00DB',
-      ucirc: '\u00FB',
-      Ucy: '\u0423',
-      ucy: '\u0443',
-      udarr: '\u21C5',
-      Udblac: '\u0170',
-      udblac: '\u0171',
-      udhar: '\u296E',
-      ufisht: '\u297E',
-      Ufr: '\uD835\uDD18',
-      ufr: '\uD835\uDD32',
-      Ugrave: '\u00D9',
-      ugrave: '\u00F9',
-      uHar: '\u2963',
-      uharl: '\u21BF',
-      uharr: '\u21BE',
-      uhblk: '\u2580',
-      ulcorn: '\u231C',
-      ulcorner: '\u231C',
-      ulcrop: '\u230F',
-      ultri: '\u25F8',
-      Umacr: '\u016A',
-      umacr: '\u016B',
-      uml: '\u00A8',
-      UnderBar: '\u005F',
-      UnderBrace: '\u23DF',
-      UnderBracket: '\u23B5',
-      UnderParenthesis: '\u23DD',
-      Union: '\u22C3',
-      UnionPlus: '\u228E',
-      Uogon: '\u0172',
-      uogon: '\u0173',
-      Uopf: '\uD835\uDD4C',
-      uopf: '\uD835\uDD66',
-      UpArrow: '\u2191',
-      Uparrow: '\u21D1',
-      uparrow: '\u2191',
-      UpArrowBar: '\u2912',
-      UpArrowDownArrow: '\u21C5',
-      UpDownArrow: '\u2195',
-      Updownarrow: '\u21D5',
-      updownarrow: '\u2195',
-      UpEquilibrium: '\u296E',
-      upharpoonleft: '\u21BF',
-      upharpoonright: '\u21BE',
-      uplus: '\u228E',
-      UpperLeftArrow: '\u2196',
-      UpperRightArrow: '\u2197',
-      Upsi: '\u03D2',
-      upsi: '\u03C5',
-      upsih: '\u03D2',
-      Upsilon: '\u03A5',
-      upsilon: '\u03C5',
-      UpTee: '\u22A5',
-      UpTeeArrow: '\u21A5',
-      upuparrows: '\u21C8',
-      urcorn: '\u231D',
-      urcorner: '\u231D',
-      urcrop: '\u230E',
-      Uring: '\u016E',
-      uring: '\u016F',
-      urtri: '\u25F9',
-      Uscr: '\uD835\uDCB0',
-      uscr: '\uD835\uDCCA',
-      utdot: '\u22F0',
-      Utilde: '\u0168',
-      utilde: '\u0169',
-      utri: '\u25B5',
-      utrif: '\u25B4',
-      uuarr: '\u21C8',
-      Uuml: '\u00DC',
-      uuml: '\u00FC',
-      uwangle: '\u29A7',
-      vangrt: '\u299C',
-      varepsilon: '\u03F5',
-      varkappa: '\u03F0',
-      varnothing: '\u2205',
-      varphi: '\u03D5',
-      varpi: '\u03D6',
-      varpropto: '\u221D',
-      vArr: '\u21D5',
-      varr: '\u2195',
-      varrho: '\u03F1',
-      varsigma: '\u03C2',
-      varsubsetneq: '\u228A\uFE00',
-      varsubsetneqq: '\u2ACB\uFE00',
-      varsupsetneq: '\u228B\uFE00',
-      varsupsetneqq: '\u2ACC\uFE00',
-      vartheta: '\u03D1',
-      vartriangleleft: '\u22B2',
-      vartriangleright: '\u22B3',
-      Vbar: '\u2AEB',
-      vBar: '\u2AE8',
-      vBarv: '\u2AE9',
-      Vcy: '\u0412',
-      vcy: '\u0432',
-      VDash: '\u22AB',
-      Vdash: '\u22A9',
-      vDash: '\u22A8',
-      vdash: '\u22A2',
-      Vdashl: '\u2AE6',
-      Vee: '\u22C1',
-      vee: '\u2228',
-      veebar: '\u22BB',
-      veeeq: '\u225A',
-      vellip: '\u22EE',
-      Verbar: '\u2016',
-      verbar: '\u007C',
-      Vert: '\u2016',
-      vert: '\u007C',
-      VerticalBar: '\u2223',
-      VerticalLine: '\u007C',
-      VerticalSeparator: '\u2758',
-      VerticalTilde: '\u2240',
-      VeryThinSpace: '\u200A',
-      Vfr: '\uD835\uDD19',
-      vfr: '\uD835\uDD33',
-      vltri: '\u22B2',
-      vnsub: '\u2282\u20D2',
-      vnsup: '\u2283\u20D2',
-      Vopf: '\uD835\uDD4D',
-      vopf: '\uD835\uDD67',
-      vprop: '\u221D',
-      vrtri: '\u22B3',
-      Vscr: '\uD835\uDCB1',
-      vscr: '\uD835\uDCCB',
-      vsubnE: '\u2ACB\uFE00',
-      vsubne: '\u228A\uFE00',
-      vsupnE: '\u2ACC\uFE00',
-      vsupne: '\u228B\uFE00',
-      Vvdash: '\u22AA',
-      vzigzag: '\u299A',
-      Wcirc: '\u0174',
-      wcirc: '\u0175',
-      wedbar: '\u2A5F',
-      Wedge: '\u22C0',
-      wedge: '\u2227',
-      wedgeq: '\u2259',
-      weierp: '\u2118',
-      Wfr: '\uD835\uDD1A',
-      wfr: '\uD835\uDD34',
-      Wopf: '\uD835\uDD4E',
-      wopf: '\uD835\uDD68',
-      wp: '\u2118',
-      wr: '\u2240',
-      wreath: '\u2240',
-      Wscr: '\uD835\uDCB2',
-      wscr: '\uD835\uDCCC',
-      xcap: '\u22C2',
-      xcirc: '\u25EF',
-      xcup: '\u22C3',
-      xdtri: '\u25BD',
-      Xfr: '\uD835\uDD1B',
-      xfr: '\uD835\uDD35',
-      xhArr: '\u27FA',
-      xharr: '\u27F7',
-      Xi: '\u039E',
-      xi: '\u03BE',
-      xlArr: '\u27F8',
-      xlarr: '\u27F5',
-      xmap: '\u27FC',
-      xnis: '\u22FB',
-      xodot: '\u2A00',
-      Xopf: '\uD835\uDD4F',
-      xopf: '\uD835\uDD69',
-      xoplus: '\u2A01',
-      xotime: '\u2A02',
-      xrArr: '\u27F9',
-      xrarr: '\u27F6',
-      Xscr: '\uD835\uDCB3',
-      xscr: '\uD835\uDCCD',
-      xsqcup: '\u2A06',
-      xuplus: '\u2A04',
-      xutri: '\u25B3',
-      xvee: '\u22C1',
-      xwedge: '\u22C0',
-      Yacute: '\u00DD',
-      yacute: '\u00FD',
-      YAcy: '\u042F',
-      yacy: '\u044F',
-      Ycirc: '\u0176',
-      ycirc: '\u0177',
-      Ycy: '\u042B',
-      ycy: '\u044B',
-      yen: '\u00A5',
-      Yfr: '\uD835\uDD1C',
-      yfr: '\uD835\uDD36',
-      YIcy: '\u0407',
-      yicy: '\u0457',
-      Yopf: '\uD835\uDD50',
-      yopf: '\uD835\uDD6A',
-      Yscr: '\uD835\uDCB4',
-      yscr: '\uD835\uDCCE',
-      YUcy: '\u042E',
-      yucy: '\u044E',
-      Yuml: '\u0178',
-      yuml: '\u00FF',
-      Zacute: '\u0179',
-      zacute: '\u017A',
-      Zcaron: '\u017D',
-      zcaron: '\u017E',
-      Zcy: '\u0417',
-      zcy: '\u0437',
-      Zdot: '\u017B',
-      zdot: '\u017C',
-      zeetrf: '\u2128',
-      ZeroWidthSpace: '\u200B',
-      Zeta: '\u0396',
-      zeta: '\u03B6',
-      Zfr: '\u2128',
-      zfr: '\uD835\uDD37',
-      ZHcy: '\u0416',
-      zhcy: '\u0436',
-      zigrarr: '\u21DD',
-      Zopf: '\u2124',
-      zopf: '\uD835\uDD6B',
-      Zscr: '\uD835\uDCB5',
-      zscr: '\uD835\uDCCF',
-      zwj: '\u200D',
-      zwnj: '\u200C'
-    });
-
-    /**
-     * @deprecated use `HTML_ENTITIES` instead
-     * @see HTML_ENTITIES
-     */
-    exports.entityMap = exports.HTML_ENTITIES;
-  });
-  entities.XML_ENTITIES;
-  entities.HTML_ENTITIES;
-  entities.entityMap;
-
-  var NAMESPACE$1 = conventions.NAMESPACE;
-
-  //[4]   	NameStartChar	   ::=   	":" | [A-Z] | "_" | [a-z] | [#xC0-#xD6] | [#xD8-#xF6] | [#xF8-#x2FF] | [#x370-#x37D] | [#x37F-#x1FFF] | [#x200C-#x200D] | [#x2070-#x218F] | [#x2C00-#x2FEF] | [#x3001-#xD7FF] | [#xF900-#xFDCF] | [#xFDF0-#xFFFD] | [#x10000-#xEFFFF]
-  //[4a]   	NameChar	   ::=   	NameStartChar | "-" | "." | [0-9] | #xB7 | [#x0300-#x036F] | [#x203F-#x2040]
-  //[5]   	Name	   ::=   	NameStartChar (NameChar)*
-  var nameStartChar = /[A-Z_a-z\xC0-\xD6\xD8-\xF6\u00F8-\u02FF\u0370-\u037D\u037F-\u1FFF\u200C-\u200D\u2070-\u218F\u2C00-\u2FEF\u3001-\uD7FF\uF900-\uFDCF\uFDF0-\uFFFD]/; //\u10000-\uEFFFF
-  var nameChar = new RegExp("[\\-\\.0-9" + nameStartChar.source.slice(1, -1) + "\\u00B7\\u0300-\\u036F\\u203F-\\u2040]");
-  var tagNamePattern = new RegExp('^' + nameStartChar.source + nameChar.source + '*(?:\:' + nameStartChar.source + nameChar.source + '*)?$');
-  //var tagNamePattern = /^[a-zA-Z_][\w\-\.]*(?:\:[a-zA-Z_][\w\-\.]*)?$/
-  //var handlers = 'resolveEntity,getExternalSubset,characters,endDocument,endElement,endPrefixMapping,ignorableWhitespace,processingInstruction,setDocumentLocator,skippedEntity,startDocument,startElement,startPrefixMapping,notationDecl,unparsedEntityDecl,error,fatalError,warning,attributeDecl,elementDecl,externalEntityDecl,internalEntityDecl,comment,endCDATA,endDTD,endEntity,startCDATA,startDTD,startEntity'.split(',')
-
-  //S_TAG,	S_ATTR,	S_EQ,	S_ATTR_NOQUOT_VALUE
-  //S_ATTR_SPACE,	S_ATTR_END,	S_TAG_SPACE, S_TAG_CLOSE
-  var S_TAG = 0; //tag name offerring
-  var S_ATTR = 1; //attr name offerring
-  var S_ATTR_SPACE = 2; //attr name end and space offer
-  var S_EQ = 3; //=space?
-  var S_ATTR_NOQUOT_VALUE = 4; //attr value(no quot value only)
-  var S_ATTR_END = 5; //attr value end and no space(quot end)
-  var S_TAG_SPACE = 6; //(attr value end || tag end ) && (space offer)
-  var S_TAG_CLOSE = 7; //closed el<el />
-
-  /**
-   * Creates an error that will not be caught by XMLReader aka the SAX parser.
-   *
-   * @param {string} message
-   * @param {any?} locator Optional, can provide details about the location in the source
-   * @constructor
-   */
-  function ParseError$1(message, locator) {
-    this.message = message;
-    this.locator = locator;
-    if (Error.captureStackTrace) Error.captureStackTrace(this, ParseError$1);
-  }
-  ParseError$1.prototype = new Error();
-  ParseError$1.prototype.name = ParseError$1.name;
-  function XMLReader$1() {}
-  XMLReader$1.prototype = {
-    parse: function (source, defaultNSMap, entityMap) {
-      var domBuilder = this.domBuilder;
-      domBuilder.startDocument();
-      _copy(defaultNSMap, defaultNSMap = {});
-      parse$1(source, defaultNSMap, entityMap, domBuilder, this.errorHandler);
-      domBuilder.endDocument();
-    }
-  };
-  function parse$1(source, defaultNSMapCopy, entityMap, domBuilder, errorHandler) {
-    function fixedFromCharCode(code) {
-      // String.prototype.fromCharCode does not supports
-      // > 2 bytes unicode chars directly
-      if (code > 0xffff) {
-        code -= 0x10000;
-        var surrogate1 = 0xd800 + (code >> 10),
-          surrogate2 = 0xdc00 + (code & 0x3ff);
-        return String.fromCharCode(surrogate1, surrogate2);
-      } else {
-        return String.fromCharCode(code);
-      }
-    }
-    function entityReplacer(a) {
-      var k = a.slice(1, -1);
-      if (Object.hasOwnProperty.call(entityMap, k)) {
-        return entityMap[k];
-      } else if (k.charAt(0) === '#') {
-        return fixedFromCharCode(parseInt(k.substr(1).replace('x', '0x')));
-      } else {
-        errorHandler.error('entity not found:' + a);
-        return a;
-      }
-    }
-    function appendText(end) {
-      //has some bugs
-      if (end > start) {
-        var xt = source.substring(start, end).replace(/&#?\w+;/g, entityReplacer);
-        locator && position(start);
-        domBuilder.characters(xt, 0, end - start);
-        start = end;
-      }
-    }
-    function position(p, m) {
-      while (p >= lineEnd && (m = linePattern.exec(source))) {
-        lineStart = m.index;
-        lineEnd = lineStart + m[0].length;
-        locator.lineNumber++;
-        //console.log('line++:',locator,startPos,endPos)
-      }
-
-      locator.columnNumber = p - lineStart + 1;
-    }
-    var lineStart = 0;
-    var lineEnd = 0;
-    var linePattern = /.*(?:\r\n?|\n)|.*$/g;
-    var locator = domBuilder.locator;
-    var parseStack = [{
-      currentNSMap: defaultNSMapCopy
-    }];
-    var closeMap = {};
-    var start = 0;
-    while (true) {
-      try {
-        var tagStart = source.indexOf('<', start);
-        if (tagStart < 0) {
-          if (!source.substr(start).match(/^\s*$/)) {
-            var doc = domBuilder.doc;
-            var text = doc.createTextNode(source.substr(start));
-            doc.appendChild(text);
-            domBuilder.currentElement = text;
-          }
-          return;
-        }
-        if (tagStart > start) {
-          appendText(tagStart);
-        }
-        switch (source.charAt(tagStart + 1)) {
-          case '/':
-            var end = source.indexOf('>', tagStart + 3);
-            var tagName = source.substring(tagStart + 2, end).replace(/[ \t\n\r]+$/g, '');
-            var config = parseStack.pop();
-            if (end < 0) {
-              tagName = source.substring(tagStart + 2).replace(/[\s<].*/, '');
-              errorHandler.error("end tag name: " + tagName + ' is not complete:' + config.tagName);
-              end = tagStart + 1 + tagName.length;
-            } else if (tagName.match(/\s</)) {
-              tagName = tagName.replace(/[\s<].*/, '');
-              errorHandler.error("end tag name: " + tagName + ' maybe not complete');
-              end = tagStart + 1 + tagName.length;
-            }
-            var localNSMap = config.localNSMap;
-            var endMatch = config.tagName == tagName;
-            var endIgnoreCaseMach = endMatch || config.tagName && config.tagName.toLowerCase() == tagName.toLowerCase();
-            if (endIgnoreCaseMach) {
-              domBuilder.endElement(config.uri, config.localName, tagName);
-              if (localNSMap) {
-                for (var prefix in localNSMap) {
-                  if (Object.prototype.hasOwnProperty.call(localNSMap, prefix)) {
-                    domBuilder.endPrefixMapping(prefix);
-                  }
-                }
-              }
-              if (!endMatch) {
-                errorHandler.fatalError("end tag name: " + tagName + ' is not match the current start tagName:' + config.tagName); // No known test case
-              }
-            } else {
-              parseStack.push(config);
-            }
-            end++;
-            break;
-          // end elment
-          case '?':
-            // <?...?>
-            locator && position(tagStart);
-            end = parseInstruction(source, tagStart, domBuilder);
-            break;
-          case '!':
-            // <!doctype,<![CDATA,<!--
-            locator && position(tagStart);
-            end = parseDCC(source, tagStart, domBuilder, errorHandler);
-            break;
-          default:
-            locator && position(tagStart);
-            var el = new ElementAttributes();
-            var currentNSMap = parseStack[parseStack.length - 1].currentNSMap;
-            //elStartEnd
-            var end = parseElementStartPart(source, tagStart, el, currentNSMap, entityReplacer, errorHandler);
-            var len = el.length;
-            if (!el.closed && fixSelfClosed(source, end, el.tagName, closeMap)) {
-              el.closed = true;
-              if (!entityMap.nbsp) {
-                errorHandler.warning('unclosed xml attribute');
-              }
-            }
-            if (locator && len) {
-              var locator2 = copyLocator(locator, {});
-              //try{//attribute position fixed
-              for (var i = 0; i < len; i++) {
-                var a = el[i];
-                position(a.offset);
-                a.locator = copyLocator(locator, {});
-              }
-              domBuilder.locator = locator2;
-              if (appendElement$1(el, domBuilder, currentNSMap)) {
-                parseStack.push(el);
-              }
-              domBuilder.locator = locator;
-            } else {
-              if (appendElement$1(el, domBuilder, currentNSMap)) {
-                parseStack.push(el);
-              }
-            }
-            if (NAMESPACE$1.isHTML(el.uri) && !el.closed) {
-              end = parseHtmlSpecialContent(source, end, el.tagName, entityReplacer, domBuilder);
-            } else {
-              end++;
-            }
-        }
-      } catch (e) {
-        if (e instanceof ParseError$1) {
-          throw e;
-        }
-        errorHandler.error('element parse error: ' + e);
-        end = -1;
-      }
-      if (end > start) {
-        start = end;
-      } else {
-        //TODO: 这里有可能sax回退，有位置错误风险
-        appendText(Math.max(tagStart, start) + 1);
-      }
-    }
-  }
-  function copyLocator(f, t) {
-    t.lineNumber = f.lineNumber;
-    t.columnNumber = f.columnNumber;
-    return t;
-  }
-
-  /**
-   * @see #appendElement(source,elStartEnd,el,selfClosed,entityReplacer,domBuilder,parseStack);
-   * @return end of the elementStartPart(end of elementEndPart for selfClosed el)
-   */
-  function parseElementStartPart(source, start, el, currentNSMap, entityReplacer, errorHandler) {
-    /**
-     * @param {string} qname
-     * @param {string} value
-     * @param {number} startIndex
-     */
-    function addAttribute(qname, value, startIndex) {
-      if (el.attributeNames.hasOwnProperty(qname)) {
-        errorHandler.fatalError('Attribute ' + qname + ' redefined');
-      }
-      el.addValue(qname,
-      // @see https://www.w3.org/TR/xml/#AVNormalize
-      // since the xmldom sax parser does not "interpret" DTD the following is not implemented:
-      // - recursive replacement of (DTD) entity references
-      // - trimming and collapsing multiple spaces into a single one for attributes that are not of type CDATA
-      value.replace(/[\t\n\r]/g, ' ').replace(/&#?\w+;/g, entityReplacer), startIndex);
-    }
-    var attrName;
-    var value;
-    var p = ++start;
-    var s = S_TAG; //status
-    while (true) {
-      var c = source.charAt(p);
-      switch (c) {
-        case '=':
-          if (s === S_ATTR) {
-            //attrName
-            attrName = source.slice(start, p);
-            s = S_EQ;
-          } else if (s === S_ATTR_SPACE) {
-            s = S_EQ;
-          } else {
-            //fatalError: equal must after attrName or space after attrName
-            throw new Error('attribute equal must after attrName'); // No known test case
-          }
-
-          break;
-        case '\'':
-        case '"':
-          if (s === S_EQ || s === S_ATTR //|| s == S_ATTR_SPACE
-          ) {
-            //equal
-            if (s === S_ATTR) {
-              errorHandler.warning('attribute value must after "="');
-              attrName = source.slice(start, p);
-            }
-            start = p + 1;
-            p = source.indexOf(c, start);
-            if (p > 0) {
-              value = source.slice(start, p);
-              addAttribute(attrName, value, start - 1);
-              s = S_ATTR_END;
-            } else {
-              //fatalError: no end quot match
-              throw new Error('attribute value no end \'' + c + '\' match');
-            }
-          } else if (s == S_ATTR_NOQUOT_VALUE) {
-            value = source.slice(start, p);
-            addAttribute(attrName, value, start);
-            errorHandler.warning('attribute "' + attrName + '" missed start quot(' + c + ')!!');
-            start = p + 1;
-            s = S_ATTR_END;
-          } else {
-            //fatalError: no equal before
-            throw new Error('attribute value must after "="'); // No known test case
-          }
-
-          break;
-        case '/':
-          switch (s) {
-            case S_TAG:
-              el.setTagName(source.slice(start, p));
-            case S_ATTR_END:
-            case S_TAG_SPACE:
-            case S_TAG_CLOSE:
-              s = S_TAG_CLOSE;
-              el.closed = true;
-            case S_ATTR_NOQUOT_VALUE:
-            case S_ATTR:
-              break;
-            case S_ATTR_SPACE:
-              el.closed = true;
-              break;
-            //case S_EQ:
-            default:
-              throw new Error("attribute invalid close char('/')");
-            // No known test case
-          }
-
-          break;
-        case '':
-          //end document
-          errorHandler.error('unexpected end of input');
-          if (s == S_TAG) {
-            el.setTagName(source.slice(start, p));
-          }
-          return p;
-        case '>':
-          switch (s) {
-            case S_TAG:
-              el.setTagName(source.slice(start, p));
-            case S_ATTR_END:
-            case S_TAG_SPACE:
-            case S_TAG_CLOSE:
-              break;
-            //normal
-            case S_ATTR_NOQUOT_VALUE: //Compatible state
-            case S_ATTR:
-              value = source.slice(start, p);
-              if (value.slice(-1) === '/') {
-                el.closed = true;
-                value = value.slice(0, -1);
-              }
-            case S_ATTR_SPACE:
-              if (s === S_ATTR_SPACE) {
-                value = attrName;
-              }
-              if (s == S_ATTR_NOQUOT_VALUE) {
-                errorHandler.warning('attribute "' + value + '" missed quot(")!');
-                addAttribute(attrName, value, start);
-              } else {
-                if (!NAMESPACE$1.isHTML(currentNSMap['']) || !value.match(/^(?:disabled|checked|selected)$/i)) {
-                  errorHandler.warning('attribute "' + value + '" missed value!! "' + value + '" instead!!');
-                }
-                addAttribute(value, value, start);
-              }
-              break;
-            case S_EQ:
-              throw new Error('attribute value missed!!');
-          }
-          //			console.log(tagName,tagNamePattern,tagNamePattern.test(tagName))
-          return p;
-        /*xml space '\x20' | #x9 | #xD | #xA; */
-        case '\u0080':
-          c = ' ';
-        default:
-          if (c <= ' ') {
-            //space
-            switch (s) {
-              case S_TAG:
-                el.setTagName(source.slice(start, p)); //tagName
-                s = S_TAG_SPACE;
-                break;
-              case S_ATTR:
-                attrName = source.slice(start, p);
-                s = S_ATTR_SPACE;
-                break;
-              case S_ATTR_NOQUOT_VALUE:
-                var value = source.slice(start, p);
-                errorHandler.warning('attribute "' + value + '" missed quot(")!!');
-                addAttribute(attrName, value, start);
-              case S_ATTR_END:
-                s = S_TAG_SPACE;
-                break;
-              //case S_TAG_SPACE:
-              //case S_EQ:
-              //case S_ATTR_SPACE:
-              //	void();break;
-              //case S_TAG_CLOSE:
-              //ignore warning
-            }
-          } else {
-            //not space
-            //S_TAG,	S_ATTR,	S_EQ,	S_ATTR_NOQUOT_VALUE
-            //S_ATTR_SPACE,	S_ATTR_END,	S_TAG_SPACE, S_TAG_CLOSE
-            switch (s) {
-              //case S_TAG:void();break;
-              //case S_ATTR:void();break;
-              //case S_ATTR_NOQUOT_VALUE:void();break;
-              case S_ATTR_SPACE:
-                el.tagName;
-                if (!NAMESPACE$1.isHTML(currentNSMap['']) || !attrName.match(/^(?:disabled|checked|selected)$/i)) {
-                  errorHandler.warning('attribute "' + attrName + '" missed value!! "' + attrName + '" instead2!!');
-                }
-                addAttribute(attrName, attrName, start);
-                start = p;
-                s = S_ATTR;
-                break;
-              case S_ATTR_END:
-                errorHandler.warning('attribute space is required"' + attrName + '"!!');
-              case S_TAG_SPACE:
-                s = S_ATTR;
-                start = p;
-                break;
-              case S_EQ:
-                s = S_ATTR_NOQUOT_VALUE;
-                start = p;
-                break;
-              case S_TAG_CLOSE:
-                throw new Error("elements closed character '/' and '>' must be connected to");
-            }
-          }
-      } //end outer switch
-      //console.log('p++',p)
-      p++;
-    }
-  }
-  /**
-   * @return true if has new namespace define
-   */
-  function appendElement$1(el, domBuilder, currentNSMap) {
-    var tagName = el.tagName;
-    var localNSMap = null;
-    //var currentNSMap = parseStack[parseStack.length-1].currentNSMap;
-    var i = el.length;
-    while (i--) {
-      var a = el[i];
-      var qName = a.qName;
-      var value = a.value;
-      var nsp = qName.indexOf(':');
-      if (nsp > 0) {
-        var prefix = a.prefix = qName.slice(0, nsp);
-        var localName = qName.slice(nsp + 1);
-        var nsPrefix = prefix === 'xmlns' && localName;
-      } else {
-        localName = qName;
-        prefix = null;
-        nsPrefix = qName === 'xmlns' && '';
-      }
-      //can not set prefix,because prefix !== ''
-      a.localName = localName;
-      //prefix == null for no ns prefix attribute
-      if (nsPrefix !== false) {
-        //hack!!
-        if (localNSMap == null) {
-          localNSMap = {};
-          //console.log(currentNSMap,0)
-          _copy(currentNSMap, currentNSMap = {});
-          //console.log(currentNSMap,1)
-        }
-
-        currentNSMap[nsPrefix] = localNSMap[nsPrefix] = value;
-        a.uri = NAMESPACE$1.XMLNS;
-        domBuilder.startPrefixMapping(nsPrefix, value);
-      }
-    }
-    var i = el.length;
-    while (i--) {
-      a = el[i];
-      var prefix = a.prefix;
-      if (prefix) {
-        //no prefix attribute has no namespace
-        if (prefix === 'xml') {
-          a.uri = NAMESPACE$1.XML;
-        }
-        if (prefix !== 'xmlns') {
-          a.uri = currentNSMap[prefix || ''];
-
-          //{console.log('###'+a.qName,domBuilder.locator.systemId+'',currentNSMap,a.uri)}
-        }
-      }
-    }
-
-    var nsp = tagName.indexOf(':');
-    if (nsp > 0) {
-      prefix = el.prefix = tagName.slice(0, nsp);
-      localName = el.localName = tagName.slice(nsp + 1);
-    } else {
-      prefix = null; //important!!
-      localName = el.localName = tagName;
-    }
-    //no prefix element has default namespace
-    var ns = el.uri = currentNSMap[prefix || ''];
-    domBuilder.startElement(ns, localName, tagName, el);
-    //endPrefixMapping and startPrefixMapping have not any help for dom builder
-    //localNSMap = null
-    if (el.closed) {
-      domBuilder.endElement(ns, localName, tagName);
-      if (localNSMap) {
-        for (prefix in localNSMap) {
-          if (Object.prototype.hasOwnProperty.call(localNSMap, prefix)) {
-            domBuilder.endPrefixMapping(prefix);
-          }
-        }
-      }
-    } else {
-      el.currentNSMap = currentNSMap;
-      el.localNSMap = localNSMap;
-      //parseStack.push(el);
-      return true;
-    }
-  }
-  function parseHtmlSpecialContent(source, elStartEnd, tagName, entityReplacer, domBuilder) {
-    if (/^(?:script|textarea)$/i.test(tagName)) {
-      var elEndStart = source.indexOf('</' + tagName + '>', elStartEnd);
-      var text = source.substring(elStartEnd + 1, elEndStart);
-      if (/[&<]/.test(text)) {
-        if (/^script$/i.test(tagName)) {
-          //if(!/\]\]>/.test(text)){
-          //lexHandler.startCDATA();
-          domBuilder.characters(text, 0, text.length);
-          //lexHandler.endCDATA();
-          return elEndStart;
-          //}
-        } //}else{//text area
-        text = text.replace(/&#?\w+;/g, entityReplacer);
-        domBuilder.characters(text, 0, text.length);
-        return elEndStart;
-        //}
-      }
-    }
-
-    return elStartEnd + 1;
-  }
-  function fixSelfClosed(source, elStartEnd, tagName, closeMap) {
-    //if(tagName in closeMap){
-    var pos = closeMap[tagName];
-    if (pos == null) {
-      //console.log(tagName)
-      pos = source.lastIndexOf('</' + tagName + '>');
-      if (pos < elStartEnd) {
-        //忘记闭合
-        pos = source.lastIndexOf('</' + tagName);
-      }
-      closeMap[tagName] = pos;
-    }
-    return pos < elStartEnd;
-    //}
-  }
-
-  function _copy(source, target) {
-    for (var n in source) {
-      if (Object.prototype.hasOwnProperty.call(source, n)) {
-        target[n] = source[n];
-      }
-    }
-  }
-  function parseDCC(source, start, domBuilder, errorHandler) {
-    //sure start with '<!'
-    var next = source.charAt(start + 2);
-    switch (next) {
-      case '-':
-        if (source.charAt(start + 3) === '-') {
-          var end = source.indexOf('-->', start + 4);
-          //append comment source.substring(4,end)//<!--
-          if (end > start) {
-            domBuilder.comment(source, start + 4, end - start - 4);
-            return end + 3;
-          } else {
-            errorHandler.error("Unclosed comment");
-            return -1;
-          }
-        } else {
-          //error
-          return -1;
-        }
-      default:
-        if (source.substr(start + 3, 6) == 'CDATA[') {
-          var end = source.indexOf(']]>', start + 9);
-          domBuilder.startCDATA();
-          domBuilder.characters(source, start + 9, end - start - 9);
-          domBuilder.endCDATA();
-          return end + 3;
-        }
-        //<!DOCTYPE
-        //startDTD(java.lang.String name, java.lang.String publicId, java.lang.String systemId)
-        var matchs = split(source, start);
-        var len = matchs.length;
-        if (len > 1 && /!doctype/i.test(matchs[0][0])) {
-          var name = matchs[1][0];
-          var pubid = false;
-          var sysid = false;
-          if (len > 3) {
-            if (/^public$/i.test(matchs[2][0])) {
-              pubid = matchs[3][0];
-              sysid = len > 4 && matchs[4][0];
-            } else if (/^system$/i.test(matchs[2][0])) {
-              sysid = matchs[3][0];
-            }
-          }
-          var lastMatch = matchs[len - 1];
-          domBuilder.startDTD(name, pubid, sysid);
-          domBuilder.endDTD();
-          return lastMatch.index + lastMatch[0].length;
-        }
-    }
-    return -1;
-  }
-  function parseInstruction(source, start, domBuilder) {
-    var end = source.indexOf('?>', start);
-    if (end) {
-      var match = source.substring(start, end).match(/^<\?(\S*)\s*([\s\S]*?)\s*$/);
-      if (match) {
-        match[0].length;
-        domBuilder.processingInstruction(match[1], match[2]);
-        return end + 2;
-      } else {
-        //error
-        return -1;
-      }
-    }
-    return -1;
-  }
-  function ElementAttributes() {
-    this.attributeNames = {};
-  }
-  ElementAttributes.prototype = {
-    setTagName: function (tagName) {
-      if (!tagNamePattern.test(tagName)) {
-        throw new Error('invalid tagName:' + tagName);
-      }
-      this.tagName = tagName;
-    },
-    addValue: function (qName, value, offset) {
-      if (!tagNamePattern.test(qName)) {
-        throw new Error('invalid attribute:' + qName);
-      }
-      this.attributeNames[qName] = this.length;
-      this[this.length++] = {
-        qName: qName,
-        value: value,
-        offset: offset
-      };
-    },
-    length: 0,
-    getLocalName: function (i) {
-      return this[i].localName;
-    },
-    getLocator: function (i) {
-      return this[i].locator;
-    },
-    getQName: function (i) {
-      return this[i].qName;
-    },
-    getURI: function (i) {
-      return this[i].uri;
-    },
-    getValue: function (i) {
-      return this[i].value;
-    }
-    //	,getIndex:function(uri, localName)){
-    //		if(localName){
-    //
-    //		}else{
-    //			var qName = uri
-    //		}
-    //	},
-    //	getValue:function(){return this.getValue(this.getIndex.apply(this,arguments))},
-    //	getType:function(uri,localName){}
-    //	getType:function(i){},
-  };
-
-  function split(source, start) {
-    var match;
-    var buf = [];
-    var reg = /'[^']+'|"[^"]+"|[^\s<>\/=]+=?|(\/?\s*>|<)/g;
-    reg.lastIndex = start;
-    reg.exec(source); //skip <
-    while (match = reg.exec(source)) {
-      buf.push(match);
-      if (match[1]) return buf;
-    }
-  }
-  var XMLReader_1 = XMLReader$1;
-  var ParseError_1 = ParseError$1;
-  var sax = {
-    XMLReader: XMLReader_1,
-    ParseError: ParseError_1
-  };
-
-  var DOMImplementation = dom.DOMImplementation;
-  var NAMESPACE = conventions.NAMESPACE;
-  var ParseError = sax.ParseError;
-  var XMLReader = sax.XMLReader;
-
-  /**
-   * Normalizes line ending according to https://www.w3.org/TR/xml11/#sec-line-ends:
-   *
-   * > XML parsed entities are often stored in computer files which,
-   * > for editing convenience, are organized into lines.
-   * > These lines are typically separated by some combination
-   * > of the characters CARRIAGE RETURN (#xD) and LINE FEED (#xA).
-   * >
-   * > To simplify the tasks of applications, the XML processor must behave
-   * > as if it normalized all line breaks in external parsed entities (including the document entity)
-   * > on input, before parsing, by translating all of the following to a single #xA character:
-   * >
-   * > 1. the two-character sequence #xD #xA
-   * > 2. the two-character sequence #xD #x85
-   * > 3. the single character #x85
-   * > 4. the single character #x2028
-   * > 5. any #xD character that is not immediately followed by #xA or #x85.
-   *
-   * @param {string} input
-   * @returns {string}
-   */
-  function normalizeLineEndings(input) {
-    return input.replace(/\r[\n\u0085]/g, '\n').replace(/[\r\u0085\u2028]/g, '\n');
-  }
-
-  /**
-   * @typedef Locator
-   * @property {number} [columnNumber]
-   * @property {number} [lineNumber]
-   */
-
-  /**
-   * @typedef DOMParserOptions
-   * @property {DOMHandler} [domBuilder]
-   * @property {Function} [errorHandler]
-   * @property {(string) => string} [normalizeLineEndings] used to replace line endings before parsing
-   * 						defaults to `normalizeLineEndings`
-   * @property {Locator} [locator]
-   * @property {Record<string, string>} [xmlns]
-   *
-   * @see normalizeLineEndings
-   */
-
-  /**
-   * The DOMParser interface provides the ability to parse XML or HTML source code
-   * from a string into a DOM `Document`.
-   *
-   * _xmldom is different from the spec in that it allows an `options` parameter,
-   * to override the default behavior._
-   *
-   * @param {DOMParserOptions} [options]
-   * @constructor
-   *
-   * @see https://developer.mozilla.org/en-US/docs/Web/API/DOMParser
-   * @see https://html.spec.whatwg.org/multipage/dynamic-markup-insertion.html#dom-parsing-and-serialization
-   */
-  function DOMParser$1(options) {
-    this.options = options || {
-      locator: {}
-    };
-  }
-  DOMParser$1.prototype.parseFromString = function (source, mimeType) {
-    var options = this.options;
-    var sax = new XMLReader();
-    var domBuilder = options.domBuilder || new DOMHandler(); //contentHandler and LexicalHandler
-    var errorHandler = options.errorHandler;
-    var locator = options.locator;
-    var defaultNSMap = options.xmlns || {};
-    var isHTML = /\/x?html?$/.test(mimeType); //mimeType.toLowerCase().indexOf('html') > -1;
-    var entityMap = isHTML ? entities.HTML_ENTITIES : entities.XML_ENTITIES;
-    if (locator) {
-      domBuilder.setDocumentLocator(locator);
-    }
-    sax.errorHandler = buildErrorHandler(errorHandler, domBuilder, locator);
-    sax.domBuilder = options.domBuilder || domBuilder;
-    if (isHTML) {
-      defaultNSMap[''] = NAMESPACE.HTML;
-    }
-    defaultNSMap.xml = defaultNSMap.xml || NAMESPACE.XML;
-    var normalize = options.normalizeLineEndings || normalizeLineEndings;
-    if (source && typeof source === 'string') {
-      sax.parse(normalize(source), defaultNSMap, entityMap);
-    } else {
-      sax.errorHandler.error('invalid doc source');
-    }
-    return domBuilder.doc;
-  };
-  function buildErrorHandler(errorImpl, domBuilder, locator) {
-    if (!errorImpl) {
-      if (domBuilder instanceof DOMHandler) {
-        return domBuilder;
-      }
-      errorImpl = domBuilder;
-    }
-    var errorHandler = {};
-    var isCallback = errorImpl instanceof Function;
-    locator = locator || {};
-    function build(key) {
-      var fn = errorImpl[key];
-      if (!fn && isCallback) {
-        fn = errorImpl.length == 2 ? function (msg) {
-          errorImpl(key, msg);
-        } : errorImpl;
-      }
-      errorHandler[key] = fn && function (msg) {
-        fn('[xmldom ' + key + ']\t' + msg + _locator(locator));
-      } || function () {};
-    }
-    build('warning');
-    build('error');
-    build('fatalError');
-    return errorHandler;
-  }
-
-  //console.log('#\n\n\n\n\n\n\n####')
-  /**
-   * +ContentHandler+ErrorHandler
-   * +LexicalHandler+EntityResolver2
-   * -DeclHandler-DTDHandler
-   *
-   * DefaultHandler:EntityResolver, DTDHandler, ContentHandler, ErrorHandler
-   * DefaultHandler2:DefaultHandler,LexicalHandler, DeclHandler, EntityResolver2
-   * @link http://www.saxproject.org/apidoc/org/xml/sax/helpers/DefaultHandler.html
-   */
-  function DOMHandler() {
-    this.cdata = false;
-  }
-  function position(locator, node) {
-    node.lineNumber = locator.lineNumber;
-    node.columnNumber = locator.columnNumber;
-  }
-  /**
-   * @see org.xml.sax.ContentHandler#startDocument
-   * @link http://www.saxproject.org/apidoc/org/xml/sax/ContentHandler.html
-   */
-  DOMHandler.prototype = {
-    startDocument: function () {
-      this.doc = new DOMImplementation().createDocument(null, null, null);
-      if (this.locator) {
-        this.doc.documentURI = this.locator.systemId;
-      }
-    },
-    startElement: function (namespaceURI, localName, qName, attrs) {
-      var doc = this.doc;
-      var el = doc.createElementNS(namespaceURI, qName || localName);
-      var len = attrs.length;
-      appendElement(this, el);
-      this.currentElement = el;
-      this.locator && position(this.locator, el);
-      for (var i = 0; i < len; i++) {
-        var namespaceURI = attrs.getURI(i);
-        var value = attrs.getValue(i);
-        var qName = attrs.getQName(i);
-        var attr = doc.createAttributeNS(namespaceURI, qName);
-        this.locator && position(attrs.getLocator(i), attr);
-        attr.value = attr.nodeValue = value;
-        el.setAttributeNode(attr);
-      }
-    },
-    endElement: function (namespaceURI, localName, qName) {
-      var current = this.currentElement;
-      current.tagName;
-      this.currentElement = current.parentNode;
-    },
-    startPrefixMapping: function (prefix, uri) {},
-    endPrefixMapping: function (prefix) {},
-    processingInstruction: function (target, data) {
-      var ins = this.doc.createProcessingInstruction(target, data);
-      this.locator && position(this.locator, ins);
-      appendElement(this, ins);
-    },
-    ignorableWhitespace: function (ch, start, length) {},
-    characters: function (chars, start, length) {
-      chars = _toString.apply(this, arguments);
-      //console.log(chars)
-      if (chars) {
-        if (this.cdata) {
-          var charNode = this.doc.createCDATASection(chars);
-        } else {
-          var charNode = this.doc.createTextNode(chars);
-        }
-        if (this.currentElement) {
-          this.currentElement.appendChild(charNode);
-        } else if (/^\s*$/.test(chars)) {
-          this.doc.appendChild(charNode);
-          //process xml
-        }
-
-        this.locator && position(this.locator, charNode);
-      }
-    },
-    skippedEntity: function (name) {},
-    endDocument: function () {
-      this.doc.normalize();
-    },
-    setDocumentLocator: function (locator) {
-      if (this.locator = locator) {
-        // && !('lineNumber' in locator)){
-        locator.lineNumber = 0;
-      }
-    },
-    //LexicalHandler
-    comment: function (chars, start, length) {
-      chars = _toString.apply(this, arguments);
-      var comm = this.doc.createComment(chars);
-      this.locator && position(this.locator, comm);
-      appendElement(this, comm);
-    },
-    startCDATA: function () {
-      //used in characters() methods
-      this.cdata = true;
-    },
-    endCDATA: function () {
-      this.cdata = false;
-    },
-    startDTD: function (name, publicId, systemId) {
-      var impl = this.doc.implementation;
-      if (impl && impl.createDocumentType) {
-        var dt = impl.createDocumentType(name, publicId, systemId);
-        this.locator && position(this.locator, dt);
-        appendElement(this, dt);
-        this.doc.doctype = dt;
-      }
-    },
-    /**
-     * @see org.xml.sax.ErrorHandler
-     * @link http://www.saxproject.org/apidoc/org/xml/sax/ErrorHandler.html
-     */
-    warning: function (error) {
-      console.warn('[xmldom warning]\t' + error, _locator(this.locator));
-    },
-    error: function (error) {
-      console.error('[xmldom error]\t' + error, _locator(this.locator));
-    },
-    fatalError: function (error) {
-      throw new ParseError(error, this.locator);
-    }
-  };
-  function _locator(l) {
-    if (l) {
-      return '\n@' + (l.systemId || '') + '#[line:' + l.lineNumber + ',col:' + l.columnNumber + ']';
-    }
-  }
-  function _toString(chars, start, length) {
-    if (typeof chars == 'string') {
-      return chars.substr(start, length);
-    } else {
-      //java sax connect width xmldom on rhino(what about: "? && !(chars instanceof String)")
-      if (chars.length >= start + length || start) {
-        return new java.lang.String(chars, start, length) + '';
-      }
-      return chars;
-    }
-  }
-
-  /*
-   * @link http://www.saxproject.org/apidoc/org/xml/sax/ext/LexicalHandler.html
-   * used method of org.xml.sax.ext.LexicalHandler:
-   *  #comment(chars, start, length)
-   *  #startCDATA()
-   *  #endCDATA()
-   *  #startDTD(name, publicId, systemId)
-   *
-   *
-   * IGNORED method of org.xml.sax.ext.LexicalHandler:
-   *  #endDTD()
-   *  #startEntity(name)
-   *  #endEntity(name)
-   *
-   *
-   * @link http://www.saxproject.org/apidoc/org/xml/sax/ext/DeclHandler.html
-   * IGNORED method of org.xml.sax.ext.DeclHandler
-   * 	#attributeDecl(eName, aName, type, mode, value)
-   *  #elementDecl(name, model)
-   *  #externalEntityDecl(name, publicId, systemId)
-   *  #internalEntityDecl(name, value)
-   * @link http://www.saxproject.org/apidoc/org/xml/sax/ext/EntityResolver2.html
-   * IGNORED method of org.xml.sax.EntityResolver2
-   *  #resolveEntity(String name,String publicId,String baseURI,String systemId)
-   *  #resolveEntity(publicId, systemId)
-   *  #getExternalSubset(name, baseURI)
-   * @link http://www.saxproject.org/apidoc/org/xml/sax/DTDHandler.html
-   * IGNORED method of org.xml.sax.DTDHandler
-   *  #notationDecl(name, publicId, systemId) {};
-   *  #unparsedEntityDecl(name, publicId, systemId, notationName) {};
-   */
-  "endDTD,startEntity,endEntity,attributeDecl,elementDecl,externalEntityDecl,internalEntityDecl,resolveEntity,getExternalSubset,notationDecl,unparsedEntityDecl".replace(/\w+/g, function (key) {
-    DOMHandler.prototype[key] = function () {
-      return null;
-    };
-  });
-
-  /* Private static helpers treated below as private instance methods, so don't need to add these to the public API; we might use a Relator to also get rid of non-standard public properties */
-  function appendElement(hander, node) {
-    if (!hander.currentElement) {
-      hander.doc.appendChild(node);
-    } else {
-      hander.currentElement.appendChild(node);
-    }
-  } //appendChild and setAttributeNS are preformance key
-
-  var __DOMHandler = DOMHandler;
-  var normalizeLineEndings_1 = normalizeLineEndings;
-  var DOMParser_1 = DOMParser$1;
-  var domParser = {
-    __DOMHandler: __DOMHandler,
-    normalizeLineEndings: normalizeLineEndings_1,
-    DOMParser: DOMParser_1
-  };
-
-  var DOMParser = domParser.DOMParser;
-
-  /*! @name mpd-parser @version 1.3.0 @license Apache-2.0 */
-  const isObject = obj => {
-    return !!obj && typeof obj === 'object';
-  };
-  const merge$1 = (...objects) => {
-    return objects.reduce((result, source) => {
-      if (typeof source !== 'object') {
-        return result;
-      }
-      Object.keys(source).forEach(key => {
-        if (Array.isArray(result[key]) && Array.isArray(source[key])) {
-          result[key] = result[key].concat(source[key]);
-        } else if (isObject(result[key]) && isObject(source[key])) {
-          result[key] = merge$1(result[key], source[key]);
-        } else {
-          result[key] = source[key];
-        }
-      });
-      return result;
-    }, {});
-  };
-  const values = o => Object.keys(o).map(k => o[k]);
-  const range = (start, end) => {
-    const result = [];
-    for (let i = start; i < end; i++) {
-      result.push(i);
-    }
-    return result;
-  };
-  const flatten = lists => lists.reduce((x, y) => x.concat(y), []);
-  const from = list => {
-    if (!list.length) {
-      return [];
-    }
-    const result = [];
-    for (let i = 0; i < list.length; i++) {
-      result.push(list[i]);
-    }
-    return result;
-  };
-  const findIndexes = (l, key) => l.reduce((a, e, i) => {
-    if (e[key]) {
-      a.push(i);
-    }
-    return a;
-  }, []);
-  /**
-   * Returns a union of the included lists provided each element can be identified by a key.
-   *
-   * @param {Array} list - list of lists to get the union of
-   * @param {Function} keyFunction - the function to use as a key for each element
-   *
-   * @return {Array} the union of the arrays
-   */
-
-  const union = (lists, keyFunction) => {
-    return values(lists.reduce((acc, list) => {
-      list.forEach(el => {
-        acc[keyFunction(el)] = el;
-      });
-      return acc;
-    }, {}));
-  };
-  var errors = {
-    INVALID_NUMBER_OF_PERIOD: 'INVALID_NUMBER_OF_PERIOD',
-    INVALID_NUMBER_OF_CONTENT_STEERING: 'INVALID_NUMBER_OF_CONTENT_STEERING',
-    DASH_EMPTY_MANIFEST: 'DASH_EMPTY_MANIFEST',
-    DASH_INVALID_XML: 'DASH_INVALID_XML',
-    NO_BASE_URL: 'NO_BASE_URL',
-    MISSING_SEGMENT_INFORMATION: 'MISSING_SEGMENT_INFORMATION',
-    SEGMENT_TIME_UNSPECIFIED: 'SEGMENT_TIME_UNSPECIFIED',
-    UNSUPPORTED_UTC_TIMING_SCHEME: 'UNSUPPORTED_UTC_TIMING_SCHEME'
-  };
-
-  /**
-   * @typedef {Object} SingleUri
-   * @property {string} uri - relative location of segment
-   * @property {string} resolvedUri - resolved location of segment
-   * @property {Object} byterange - Object containing information on how to make byte range
-   *   requests following byte-range-spec per RFC2616.
-   * @property {String} byterange.length - length of range request
-   * @property {String} byterange.offset - byte offset of range request
-   *
-   * @see https://www.w3.org/Protocols/rfc2616/rfc2616-sec14.html#sec14.35.1
-   */
-
-  /**
-   * Converts a URLType node (5.3.9.2.3 Table 13) to a segment object
-   * that conforms to how m3u8-parser is structured
-   *
-   * @see https://github.com/videojs/m3u8-parser
-   *
-   * @param {string} baseUrl - baseUrl provided by <BaseUrl> nodes
-   * @param {string} source - source url for segment
-   * @param {string} range - optional range used for range calls,
-   *   follows  RFC 2616, Clause 14.35.1
-   * @return {SingleUri} full segment information transformed into a format similar
-   *   to m3u8-parser
-   */
-
-  const urlTypeToSegment = ({
-    baseUrl = '',
-    source = '',
-    range = '',
-    indexRange = ''
-  }) => {
-    const segment = {
-      uri: source,
-      resolvedUri: resolveUrl$1(baseUrl || '', source)
-    };
-    if (range || indexRange) {
-      const rangeStr = range ? range : indexRange;
-      const ranges = rangeStr.split('-'); // default to parsing this as a BigInt if possible
-
-      let startRange = window.BigInt ? window.BigInt(ranges[0]) : parseInt(ranges[0], 10);
-      let endRange = window.BigInt ? window.BigInt(ranges[1]) : parseInt(ranges[1], 10); // convert back to a number if less than MAX_SAFE_INTEGER
-
-      if (startRange < Number.MAX_SAFE_INTEGER && typeof startRange === 'bigint') {
-        startRange = Number(startRange);
-      }
-      if (endRange < Number.MAX_SAFE_INTEGER && typeof endRange === 'bigint') {
-        endRange = Number(endRange);
-      }
-      let length;
-      if (typeof endRange === 'bigint' || typeof startRange === 'bigint') {
-        length = window.BigInt(endRange) - window.BigInt(startRange) + window.BigInt(1);
-      } else {
-        length = endRange - startRange + 1;
-      }
-      if (typeof length === 'bigint' && length < Number.MAX_SAFE_INTEGER) {
-        length = Number(length);
-      } // byterange should be inclusive according to
-      // RFC 2616, Clause 14.35.1
-
-      segment.byterange = {
-        length,
-        offset: startRange
-      };
-    }
-    return segment;
-  };
-  const byteRangeToString = byterange => {
-    // `endRange` is one less than `offset + length` because the HTTP range
-    // header uses inclusive ranges
-    let endRange;
-    if (typeof byterange.offset === 'bigint' || typeof byterange.length === 'bigint') {
-      endRange = window.BigInt(byterange.offset) + window.BigInt(byterange.length) - window.BigInt(1);
-    } else {
-      endRange = byterange.offset + byterange.length - 1;
-    }
-    return `${byterange.offset}-${endRange}`;
-  };
-
-  /**
-   * parse the end number attribue that can be a string
-   * number, or undefined.
-   *
-   * @param {string|number|undefined} endNumber
-   *        The end number attribute.
-   *
-   * @return {number|null}
-   *          The result of parsing the end number.
-   */
-
-  const parseEndNumber = endNumber => {
-    if (endNumber && typeof endNumber !== 'number') {
-      endNumber = parseInt(endNumber, 10);
-    }
-    if (isNaN(endNumber)) {
-      return null;
-    }
-    return endNumber;
-  };
-  /**
-   * Functions for calculating the range of available segments in static and dynamic
-   * manifests.
-   */
-
-  const segmentRange = {
-    /**
-     * Returns the entire range of available segments for a static MPD
-     *
-     * @param {Object} attributes
-     *        Inheritied MPD attributes
-     * @return {{ start: number, end: number }}
-     *         The start and end numbers for available segments
-     */
-    static(attributes) {
-      const {
-        duration,
-        timescale = 1,
-        sourceDuration,
-        periodDuration
-      } = attributes;
-      const endNumber = parseEndNumber(attributes.endNumber);
-      const segmentDuration = duration / timescale;
-      if (typeof endNumber === 'number') {
-        return {
-          start: 0,
-          end: endNumber
-        };
-      }
-      if (typeof periodDuration === 'number') {
-        return {
-          start: 0,
-          end: periodDuration / segmentDuration
-        };
-      }
-      return {
-        start: 0,
-        end: sourceDuration / segmentDuration
-      };
-    },
-    /**
-     * Returns the current live window range of available segments for a dynamic MPD
-     *
-     * @param {Object} attributes
-     *        Inheritied MPD attributes
-     * @return {{ start: number, end: number }}
-     *         The start and end numbers for available segments
-     */
-    dynamic(attributes) {
-      const {
-        NOW,
-        clientOffset,
-        availabilityStartTime,
-        timescale = 1,
-        duration,
-        periodStart = 0,
-        minimumUpdatePeriod = 0,
-        timeShiftBufferDepth = Infinity
-      } = attributes;
-      const endNumber = parseEndNumber(attributes.endNumber); // clientOffset is passed in at the top level of mpd-parser and is an offset calculated
-      // after retrieving UTC server time.
-
-      const now = (NOW + clientOffset) / 1000; // WC stands for Wall Clock.
-      // Convert the period start time to EPOCH.
-
-      const periodStartWC = availabilityStartTime + periodStart; // Period end in EPOCH is manifest's retrieval time + time until next update.
-
-      const periodEndWC = now + minimumUpdatePeriod;
-      const periodDuration = periodEndWC - periodStartWC;
-      const segmentCount = Math.ceil(periodDuration * timescale / duration);
-      const availableStart = Math.floor((now - periodStartWC - timeShiftBufferDepth) * timescale / duration);
-      const availableEnd = Math.floor((now - periodStartWC) * timescale / duration);
-      return {
-        start: Math.max(0, availableStart),
-        end: typeof endNumber === 'number' ? endNumber : Math.min(segmentCount, availableEnd)
-      };
-    }
-  };
-  /**
-   * Maps a range of numbers to objects with information needed to build the corresponding
-   * segment list
-   *
-   * @name toSegmentsCallback
-   * @function
-   * @param {number} number
-   *        Number of the segment
-   * @param {number} index
-   *        Index of the number in the range list
-   * @return {{ number: Number, duration: Number, timeline: Number, time: Number }}
-   *         Object with segment timing and duration info
-   */
-
-  /**
-   * Returns a callback for Array.prototype.map for mapping a range of numbers to
-   * information needed to build the segment list.
-   *
-   * @param {Object} attributes
-   *        Inherited MPD attributes
-   * @return {toSegmentsCallback}
-   *         Callback map function
-   */
-
-  const toSegments = attributes => number => {
-    const {
-      duration,
-      timescale = 1,
-      periodStart,
-      startNumber = 1
-    } = attributes;
-    return {
-      number: startNumber + number,
-      duration: duration / timescale,
-      timeline: periodStart,
-      time: number * duration
-    };
-  };
-  /**
-   * Returns a list of objects containing segment timing and duration info used for
-   * building the list of segments. This uses the @duration attribute specified
-   * in the MPD manifest to derive the range of segments.
-   *
-   * @param {Object} attributes
-   *        Inherited MPD attributes
-   * @return {{number: number, duration: number, time: number, timeline: number}[]}
-   *         List of Objects with segment timing and duration info
-   */
-
-  const parseByDuration = attributes => {
-    const {
-      type,
-      duration,
-      timescale = 1,
-      periodDuration,
-      sourceDuration
-    } = attributes;
-    const {
-      start,
-      end
-    } = segmentRange[type](attributes);
-    const segments = range(start, end).map(toSegments(attributes));
-    if (type === 'static') {
-      const index = segments.length - 1; // section is either a period or the full source
-
-      const sectionDuration = typeof periodDuration === 'number' ? periodDuration : sourceDuration; // final segment may be less than full segment duration
-
-      segments[index].duration = sectionDuration - duration / timescale * index;
-    }
-    return segments;
-  };
-
-  /**
-   * Translates SegmentBase into a set of segments.
-   * (DASH SPEC Section 5.3.9.3.2) contains a set of <SegmentURL> nodes.  Each
-   * node should be translated into segment.
-   *
-   * @param {Object} attributes
-   *   Object containing all inherited attributes from parent elements with attribute
-   *   names as keys
-   * @return {Object.<Array>} list of segments
-   */
-
-  const segmentsFromBase = attributes => {
-    const {
-      baseUrl,
-      initialization = {},
-      sourceDuration,
-      indexRange = '',
-      periodStart,
-      presentationTime,
-      number = 0,
-      duration
-    } = attributes; // base url is required for SegmentBase to work, per spec (Section 5.3.9.2.1)
-
-    if (!baseUrl) {
-      throw new Error(errors.NO_BASE_URL);
-    }
-    const initSegment = urlTypeToSegment({
-      baseUrl,
-      source: initialization.sourceURL,
-      range: initialization.range
-    });
-    const segment = urlTypeToSegment({
-      baseUrl,
-      source: baseUrl,
-      indexRange
-    });
-    segment.map = initSegment; // If there is a duration, use it, otherwise use the given duration of the source
-    // (since SegmentBase is only for one total segment)
-
-    if (duration) {
-      const segmentTimeInfo = parseByDuration(attributes);
-      if (segmentTimeInfo.length) {
-        segment.duration = segmentTimeInfo[0].duration;
-        segment.timeline = segmentTimeInfo[0].timeline;
-      }
-    } else if (sourceDuration) {
-      segment.duration = sourceDuration;
-      segment.timeline = periodStart;
-    } // If presentation time is provided, these segments are being generated by SIDX
-    // references, and should use the time provided. For the general case of SegmentBase,
-    // there should only be one segment in the period, so its presentation time is the same
-    // as its period start.
-
-    segment.presentationTime = presentationTime || periodStart;
-    segment.number = number;
-    return [segment];
-  };
-  /**
-   * Given a playlist, a sidx box, and a baseUrl, update the segment list of the playlist
-   * according to the sidx information given.
-   *
-   * playlist.sidx has metadadata about the sidx where-as the sidx param
-   * is the parsed sidx box itself.
-   *
-   * @param {Object} playlist the playlist to update the sidx information for
-   * @param {Object} sidx the parsed sidx box
-   * @return {Object} the playlist object with the updated sidx information
-   */
-
-  const addSidxSegmentsToPlaylist$1 = (playlist, sidx, baseUrl) => {
-    // Retain init segment information
-    const initSegment = playlist.sidx.map ? playlist.sidx.map : null; // Retain source duration from initial main manifest parsing
-
-    const sourceDuration = playlist.sidx.duration; // Retain source timeline
-
-    const timeline = playlist.timeline || 0;
-    const sidxByteRange = playlist.sidx.byterange;
-    const sidxEnd = sidxByteRange.offset + sidxByteRange.length; // Retain timescale of the parsed sidx
-
-    const timescale = sidx.timescale; // referenceType 1 refers to other sidx boxes
-
-    const mediaReferences = sidx.references.filter(r => r.referenceType !== 1);
-    const segments = [];
-    const type = playlist.endList ? 'static' : 'dynamic';
-    const periodStart = playlist.sidx.timeline;
-    let presentationTime = periodStart;
-    let number = playlist.mediaSequence || 0; // firstOffset is the offset from the end of the sidx box
-
-    let startIndex; // eslint-disable-next-line
-
-    if (typeof sidx.firstOffset === 'bigint') {
-      startIndex = window.BigInt(sidxEnd) + sidx.firstOffset;
-    } else {
-      startIndex = sidxEnd + sidx.firstOffset;
-    }
-    for (let i = 0; i < mediaReferences.length; i++) {
-      const reference = sidx.references[i]; // size of the referenced (sub)segment
-
-      const size = reference.referencedSize; // duration of the referenced (sub)segment, in  the  timescale
-      // this will be converted to seconds when generating segments
-
-      const duration = reference.subsegmentDuration; // should be an inclusive range
-
-      let endIndex; // eslint-disable-next-line
-
-      if (typeof startIndex === 'bigint') {
-        endIndex = startIndex + window.BigInt(size) - window.BigInt(1);
-      } else {
-        endIndex = startIndex + size - 1;
-      }
-      const indexRange = `${startIndex}-${endIndex}`;
-      const attributes = {
-        baseUrl,
-        timescale,
-        timeline,
-        periodStart,
-        presentationTime,
-        number,
-        duration,
-        sourceDuration,
-        indexRange,
-        type
-      };
-      const segment = segmentsFromBase(attributes)[0];
-      if (initSegment) {
-        segment.map = initSegment;
-      }
-      segments.push(segment);
-      if (typeof startIndex === 'bigint') {
-        startIndex += window.BigInt(size);
-      } else {
-        startIndex += size;
-      }
-      presentationTime += duration / timescale;
-      number++;
-    }
-    playlist.segments = segments;
-    return playlist;
-  };
-  const SUPPORTED_MEDIA_TYPES = ['AUDIO', 'SUBTITLES']; // allow one 60fps frame as leniency (arbitrarily chosen)
-
-  const TIME_FUDGE = 1 / 60;
-  /**
-   * Given a list of timelineStarts, combines, dedupes, and sorts them.
-   *
-   * @param {TimelineStart[]} timelineStarts - list of timeline starts
-   *
-   * @return {TimelineStart[]} the combined and deduped timeline starts
-   */
-
-  const getUniqueTimelineStarts = timelineStarts => {
-    return union(timelineStarts, ({
-      timeline
-    }) => timeline).sort((a, b) => a.timeline > b.timeline ? 1 : -1);
-  };
-  /**
-   * Finds the playlist with the matching NAME attribute.
-   *
-   * @param {Array} playlists - playlists to search through
-   * @param {string} name - the NAME attribute to search for
-   *
-   * @return {Object|null} the matching playlist object, or null
-   */
-
-  const findPlaylistWithName = (playlists, name) => {
-    for (let i = 0; i < playlists.length; i++) {
-      if (playlists[i].attributes.NAME === name) {
-        return playlists[i];
-      }
-    }
-    return null;
-  };
-  /**
-   * Gets a flattened array of media group playlists.
-   *
-   * @param {Object} manifest - the main manifest object
-   *
-   * @return {Array} the media group playlists
-   */
-
-  const getMediaGroupPlaylists = manifest => {
-    let mediaGroupPlaylists = [];
-    forEachMediaGroup$1(manifest, SUPPORTED_MEDIA_TYPES, (properties, type, group, label) => {
-      mediaGroupPlaylists = mediaGroupPlaylists.concat(properties.playlists || []);
-    });
-    return mediaGroupPlaylists;
-  };
-  /**
-   * Updates the playlist's media sequence numbers.
-   *
-   * @param {Object} config - options object
-   * @param {Object} config.playlist - the playlist to update
-   * @param {number} config.mediaSequence - the mediaSequence number to start with
-   */
-
-  const updateMediaSequenceForPlaylist = ({
-    playlist,
-    mediaSequence
-  }) => {
-    playlist.mediaSequence = mediaSequence;
-    playlist.segments.forEach((segment, index) => {
-      segment.number = playlist.mediaSequence + index;
-    });
-  };
-  /**
-   * Updates the media and discontinuity sequence numbers of newPlaylists given oldPlaylists
-   * and a complete list of timeline starts.
-   *
-   * If no matching playlist is found, only the discontinuity sequence number of the playlist
-   * will be updated.
-   *
-   * Since early available timelines are not supported, at least one segment must be present.
-   *
-   * @param {Object} config - options object
-   * @param {Object[]} oldPlaylists - the old playlists to use as a reference
-   * @param {Object[]} newPlaylists - the new playlists to update
-   * @param {Object} timelineStarts - all timelineStarts seen in the stream to this point
-   */
-
-  const updateSequenceNumbers = ({
-    oldPlaylists,
-    newPlaylists,
-    timelineStarts
-  }) => {
-    newPlaylists.forEach(playlist => {
-      playlist.discontinuitySequence = timelineStarts.findIndex(function ({
-        timeline
-      }) {
-        return timeline === playlist.timeline;
-      }); // Playlists NAMEs come from DASH Representation IDs, which are mandatory
-      // (see ISO_23009-1-2012 5.3.5.2).
-      //
-      // If the same Representation existed in a prior Period, it will retain the same NAME.
-
-      const oldPlaylist = findPlaylistWithName(oldPlaylists, playlist.attributes.NAME);
-      if (!oldPlaylist) {
-        // Since this is a new playlist, the media sequence values can start from 0 without
-        // consequence.
-        return;
-      } // TODO better support for live SIDX
-      //
-      // As of this writing, mpd-parser does not support multiperiod SIDX (in live or VOD).
-      // This is evident by a playlist only having a single SIDX reference. In a multiperiod
-      // playlist there would need to be multiple SIDX references. In addition, live SIDX is
-      // not supported when the SIDX properties change on refreshes.
-      //
-      // In the future, if support needs to be added, the merging logic here can be called
-      // after SIDX references are resolved. For now, exit early to prevent exceptions being
-      // thrown due to undefined references.
-
-      if (playlist.sidx) {
-        return;
-      } // Since we don't yet support early available timelines, we don't need to support
-      // playlists with no segments.
-
-      const firstNewSegment = playlist.segments[0];
-      const oldMatchingSegmentIndex = oldPlaylist.segments.findIndex(function (oldSegment) {
-        return Math.abs(oldSegment.presentationTime - firstNewSegment.presentationTime) < TIME_FUDGE;
-      }); // No matching segment from the old playlist means the entire playlist was refreshed.
-      // In this case the media sequence should account for this update, and the new segments
-      // should be marked as discontinuous from the prior content, since the last prior
-      // timeline was removed.
-
-      if (oldMatchingSegmentIndex === -1) {
-        updateMediaSequenceForPlaylist({
-          playlist,
-          mediaSequence: oldPlaylist.mediaSequence + oldPlaylist.segments.length
-        });
-        playlist.segments[0].discontinuity = true;
-        playlist.discontinuityStarts.unshift(0); // No matching segment does not necessarily mean there's missing content.
-        //
-        // If the new playlist's timeline is the same as the last seen segment's timeline,
-        // then a discontinuity can be added to identify that there's potentially missing
-        // content. If there's no missing content, the discontinuity should still be rather
-        // harmless. It's possible that if segment durations are accurate enough, that the
-        // existence of a gap can be determined using the presentation times and durations,
-        // but if the segment timing info is off, it may introduce more problems than simply
-        // adding the discontinuity.
-        //
-        // If the new playlist's timeline is different from the last seen segment's timeline,
-        // then a discontinuity can be added to identify that this is the first seen segment
-        // of a new timeline. However, the logic at the start of this function that
-        // determined the disconinuity sequence by timeline index is now off by one (the
-        // discontinuity of the newest timeline hasn't yet fallen off the manifest...since
-        // we added it), so the disconinuity sequence must be decremented.
-        //
-        // A period may also have a duration of zero, so the case of no segments is handled
-        // here even though we don't yet support early available periods.
-
-        if (!oldPlaylist.segments.length && playlist.timeline > oldPlaylist.timeline || oldPlaylist.segments.length && playlist.timeline > oldPlaylist.segments[oldPlaylist.segments.length - 1].timeline) {
-          playlist.discontinuitySequence--;
-        }
-        return;
-      } // If the first segment matched with a prior segment on a discontinuity (it's matching
-      // on the first segment of a period), then the discontinuitySequence shouldn't be the
-      // timeline's matching one, but instead should be the one prior, and the first segment
-      // of the new manifest should be marked with a discontinuity.
-      //
-      // The reason for this special case is that discontinuity sequence shows how many
-      // discontinuities have fallen off of the playlist, and discontinuities are marked on
-      // the first segment of a new "timeline." Because of this, while DASH will retain that
-      // Period while the "timeline" exists, HLS keeps track of it via the discontinuity
-      // sequence, and that first segment is an indicator, but can be removed before that
-      // timeline is gone.
-
-      const oldMatchingSegment = oldPlaylist.segments[oldMatchingSegmentIndex];
-      if (oldMatchingSegment.discontinuity && !firstNewSegment.discontinuity) {
-        firstNewSegment.discontinuity = true;
-        playlist.discontinuityStarts.unshift(0);
-        playlist.discontinuitySequence--;
-      }
-      updateMediaSequenceForPlaylist({
-        playlist,
-        mediaSequence: oldPlaylist.segments[oldMatchingSegmentIndex].number
-      });
-    });
-  };
-  /**
-   * Given an old parsed manifest object and a new parsed manifest object, updates the
-   * sequence and timing values within the new manifest to ensure that it lines up with the
-   * old.
-   *
-   * @param {Array} oldManifest - the old main manifest object
-   * @param {Array} newManifest - the new main manifest object
-   *
-   * @return {Object} the updated new manifest object
-   */
-
-  const positionManifestOnTimeline = ({
-    oldManifest,
-    newManifest
-  }) => {
-    // Starting from v4.1.2 of the IOP, section 4.4.3.3 states:
-    //
-    // "MPD@availabilityStartTime and Period@start shall not be changed over MPD updates."
-    //
-    // This was added from https://github.com/Dash-Industry-Forum/DASH-IF-IOP/issues/160
-    //
-    // Because of this change, and the difficulty of supporting periods with changing start
-    // times, periods with changing start times are not supported. This makes the logic much
-    // simpler, since periods with the same start time can be considerred the same period
-    // across refreshes.
-    //
-    // To give an example as to the difficulty of handling periods where the start time may
-    // change, if a single period manifest is refreshed with another manifest with a single
-    // period, and both the start and end times are increased, then the only way to determine
-    // if it's a new period or an old one that has changed is to look through the segments of
-    // each playlist and determine the presentation time bounds to find a match. In addition,
-    // if the period start changed to exceed the old period end, then there would be no
-    // match, and it would not be possible to determine whether the refreshed period is a new
-    // one or the old one.
-    const oldPlaylists = oldManifest.playlists.concat(getMediaGroupPlaylists(oldManifest));
-    const newPlaylists = newManifest.playlists.concat(getMediaGroupPlaylists(newManifest)); // Save all seen timelineStarts to the new manifest. Although this potentially means that
-    // there's a "memory leak" in that it will never stop growing, in reality, only a couple
-    // of properties are saved for each seen Period. Even long running live streams won't
-    // generate too many Periods, unless the stream is watched for decades. In the future,
-    // this can be optimized by mapping to discontinuity sequence numbers for each timeline,
-    // but it may not become an issue, and the additional info can be useful for debugging.
-
-    newManifest.timelineStarts = getUniqueTimelineStarts([oldManifest.timelineStarts, newManifest.timelineStarts]);
-    updateSequenceNumbers({
-      oldPlaylists,
-      newPlaylists,
-      timelineStarts: newManifest.timelineStarts
-    });
-    return newManifest;
-  };
-  const generateSidxKey = sidx => sidx && sidx.uri + '-' + byteRangeToString(sidx.byterange);
-  const mergeDiscontiguousPlaylists = playlists => {
-    // Break out playlists into groups based on their baseUrl
-    const playlistsByBaseUrl = playlists.reduce(function (acc, cur) {
-      if (!acc[cur.attributes.baseUrl]) {
-        acc[cur.attributes.baseUrl] = [];
-      }
-      acc[cur.attributes.baseUrl].push(cur);
-      return acc;
-    }, {});
-    let allPlaylists = [];
-    Object.values(playlistsByBaseUrl).forEach(playlistGroup => {
-      const mergedPlaylists = values(playlistGroup.reduce((acc, playlist) => {
-        // assuming playlist IDs are the same across periods
-        // TODO: handle multiperiod where representation sets are not the same
-        // across periods
-        const name = playlist.attributes.id + (playlist.attributes.lang || '');
-        if (!acc[name]) {
-          // First Period
-          acc[name] = playlist;
-          acc[name].attributes.timelineStarts = [];
-        } else {
-          // Subsequent Periods
-          if (playlist.segments) {
-            // first segment of subsequent periods signal a discontinuity
-            if (playlist.segments[0]) {
-              playlist.segments[0].discontinuity = true;
-            }
-            acc[name].segments.push(...playlist.segments);
-          } // bubble up contentProtection, this assumes all DRM content
-          // has the same contentProtection
-
-          if (playlist.attributes.contentProtection) {
-            acc[name].attributes.contentProtection = playlist.attributes.contentProtection;
-          }
-        }
-        acc[name].attributes.timelineStarts.push({
-          // Although they represent the same number, it's important to have both to make it
-          // compatible with HLS potentially having a similar attribute.
-          start: playlist.attributes.periodStart,
-          timeline: playlist.attributes.periodStart
-        });
-        return acc;
-      }, {}));
-      allPlaylists = allPlaylists.concat(mergedPlaylists);
-    });
-    return allPlaylists.map(playlist => {
-      playlist.discontinuityStarts = findIndexes(playlist.segments || [], 'discontinuity');
-      return playlist;
-    });
-  };
-  const addSidxSegmentsToPlaylist = (playlist, sidxMapping) => {
-    const sidxKey = generateSidxKey(playlist.sidx);
-    const sidxMatch = sidxKey && sidxMapping[sidxKey] && sidxMapping[sidxKey].sidx;
-    if (sidxMatch) {
-      addSidxSegmentsToPlaylist$1(playlist, sidxMatch, playlist.sidx.resolvedUri);
-    }
-    return playlist;
-  };
-  const addSidxSegmentsToPlaylists = (playlists, sidxMapping = {}) => {
-    if (!Object.keys(sidxMapping).length) {
-      return playlists;
-    }
-    for (const i in playlists) {
-      playlists[i] = addSidxSegmentsToPlaylist(playlists[i], sidxMapping);
-    }
-    return playlists;
-  };
-  const formatAudioPlaylist = ({
-    attributes,
-    segments,
-    sidx,
-    mediaSequence,
-    discontinuitySequence,
-    discontinuityStarts
-  }, isAudioOnly) => {
-    const playlist = {
-      attributes: {
-        NAME: attributes.id,
-        BANDWIDTH: attributes.bandwidth,
-        CODECS: attributes.codecs,
-        ['PROGRAM-ID']: 1
-      },
-      uri: '',
-      endList: attributes.type === 'static',
-      timeline: attributes.periodStart,
-      resolvedUri: attributes.baseUrl || '',
-      targetDuration: attributes.duration,
-      discontinuitySequence,
-      discontinuityStarts,
-      timelineStarts: attributes.timelineStarts,
-      mediaSequence,
-      segments
-    };
-    if (attributes.contentProtection) {
-      playlist.contentProtection = attributes.contentProtection;
-    }
-    if (attributes.serviceLocation) {
-      playlist.attributes.serviceLocation = attributes.serviceLocation;
-    }
-    if (sidx) {
-      playlist.sidx = sidx;
-    }
-    if (isAudioOnly) {
-      playlist.attributes.AUDIO = 'audio';
-      playlist.attributes.SUBTITLES = 'subs';
-    }
-    return playlist;
-  };
-  const formatVttPlaylist = ({
-    attributes,
-    segments,
-    mediaSequence,
-    discontinuityStarts,
-    discontinuitySequence
-  }) => {
-    if (typeof segments === 'undefined') {
-      // vtt tracks may use single file in BaseURL
-      segments = [{
-        uri: attributes.baseUrl,
-        timeline: attributes.periodStart,
-        resolvedUri: attributes.baseUrl || '',
-        duration: attributes.sourceDuration,
-        number: 0
-      }]; // targetDuration should be the same duration as the only segment
-
-      attributes.duration = attributes.sourceDuration;
-    }
-    const m3u8Attributes = {
-      NAME: attributes.id,
-      BANDWIDTH: attributes.bandwidth,
-      ['PROGRAM-ID']: 1
-    };
-    if (attributes.codecs) {
-      m3u8Attributes.CODECS = attributes.codecs;
-    }
-    const vttPlaylist = {
-      attributes: m3u8Attributes,
-      uri: '',
-      endList: attributes.type === 'static',
-      timeline: attributes.periodStart,
-      resolvedUri: attributes.baseUrl || '',
-      targetDuration: attributes.duration,
-      timelineStarts: attributes.timelineStarts,
-      discontinuityStarts,
-      discontinuitySequence,
-      mediaSequence,
-      segments
-    };
-    if (attributes.serviceLocation) {
-      vttPlaylist.attributes.serviceLocation = attributes.serviceLocation;
-    }
-    return vttPlaylist;
-  };
-  const organizeAudioPlaylists = (playlists, sidxMapping = {}, isAudioOnly = false) => {
-    let mainPlaylist;
-    const formattedPlaylists = playlists.reduce((a, playlist) => {
-      const role = playlist.attributes.role && playlist.attributes.role.value || '';
-      const language = playlist.attributes.lang || '';
-      let label = playlist.attributes.label || 'main';
-      if (language && !playlist.attributes.label) {
-        const roleLabel = role ? ` (${role})` : '';
-        label = `${playlist.attributes.lang}${roleLabel}`;
-      }
-      if (!a[label]) {
-        a[label] = {
-          language,
-          autoselect: true,
-          default: role === 'main',
-          playlists: [],
-          uri: ''
-        };
-      }
-      const formatted = addSidxSegmentsToPlaylist(formatAudioPlaylist(playlist, isAudioOnly), sidxMapping);
-      a[label].playlists.push(formatted);
-      if (typeof mainPlaylist === 'undefined' && role === 'main') {
-        mainPlaylist = playlist;
-        mainPlaylist.default = true;
-      }
-      return a;
-    }, {}); // if no playlists have role "main", mark the first as main
-
-    if (!mainPlaylist) {
-      const firstLabel = Object.keys(formattedPlaylists)[0];
-      formattedPlaylists[firstLabel].default = true;
-    }
-    return formattedPlaylists;
-  };
-  const organizeVttPlaylists = (playlists, sidxMapping = {}) => {
-    return playlists.reduce((a, playlist) => {
-      const label = playlist.attributes.label || playlist.attributes.lang || 'text';
-      if (!a[label]) {
-        a[label] = {
-          language: label,
-          default: false,
-          autoselect: false,
-          playlists: [],
-          uri: ''
-        };
-      }
-      a[label].playlists.push(addSidxSegmentsToPlaylist(formatVttPlaylist(playlist), sidxMapping));
-      return a;
-    }, {});
-  };
-  const organizeCaptionServices = captionServices => captionServices.reduce((svcObj, svc) => {
-    if (!svc) {
-      return svcObj;
-    }
-    svc.forEach(service => {
-      const {
-        channel,
-        language
-      } = service;
-      svcObj[language] = {
-        autoselect: false,
-        default: false,
-        instreamId: channel,
-        language
-      };
-      if (service.hasOwnProperty('aspectRatio')) {
-        svcObj[language].aspectRatio = service.aspectRatio;
-      }
-      if (service.hasOwnProperty('easyReader')) {
-        svcObj[language].easyReader = service.easyReader;
-      }
-      if (service.hasOwnProperty('3D')) {
-        svcObj[language]['3D'] = service['3D'];
-      }
-    });
-    return svcObj;
-  }, {});
-  const formatVideoPlaylist = ({
-    attributes,
-    segments,
-    sidx,
-    discontinuityStarts
-  }) => {
-    const playlist = {
-      attributes: {
-        NAME: attributes.id,
-        AUDIO: 'audio',
-        SUBTITLES: 'subs',
-        RESOLUTION: {
-          width: attributes.width,
-          height: attributes.height
-        },
-        CODECS: attributes.codecs,
-        BANDWIDTH: attributes.bandwidth,
-        ['PROGRAM-ID']: 1
-      },
-      uri: '',
-      endList: attributes.type === 'static',
-      timeline: attributes.periodStart,
-      resolvedUri: attributes.baseUrl || '',
-      targetDuration: attributes.duration,
-      discontinuityStarts,
-      timelineStarts: attributes.timelineStarts,
-      segments
-    };
-    if (attributes.frameRate) {
-      playlist.attributes['FRAME-RATE'] = attributes.frameRate;
-    }
-    if (attributes.contentProtection) {
-      playlist.contentProtection = attributes.contentProtection;
-    }
-    if (attributes.serviceLocation) {
-      playlist.attributes.serviceLocation = attributes.serviceLocation;
-    }
-    if (sidx) {
-      playlist.sidx = sidx;
-    }
-    return playlist;
-  };
-  const videoOnly = ({
-    attributes
-  }) => attributes.mimeType === 'video/mp4' || attributes.mimeType === 'video/webm' || attributes.contentType === 'video';
-  const audioOnly = ({
-    attributes
-  }) => attributes.mimeType === 'audio/mp4' || attributes.mimeType === 'audio/webm' || attributes.contentType === 'audio';
-  const vttOnly = ({
-    attributes
-  }) => attributes.mimeType === 'text/vtt' || attributes.contentType === 'text';
-  /**
-   * Contains start and timeline properties denoting a timeline start. For DASH, these will
-   * be the same number.
-   *
-   * @typedef {Object} TimelineStart
-   * @property {number} start - the start time of the timeline
-   * @property {number} timeline - the timeline number
-   */
-
-  /**
-   * Adds appropriate media and discontinuity sequence values to the segments and playlists.
-   *
-   * Throughout mpd-parser, the `number` attribute is used in relation to `startNumber`, a
-   * DASH specific attribute used in constructing segment URI's from templates. However, from
-   * an HLS perspective, the `number` attribute on a segment would be its `mediaSequence`
-   * value, which should start at the original media sequence value (or 0) and increment by 1
-   * for each segment thereafter. Since DASH's `startNumber` values are independent per
-   * period, it doesn't make sense to use it for `number`. Instead, assume everything starts
-   * from a 0 mediaSequence value and increment from there.
-   *
-   * Note that VHS currently doesn't use the `number` property, but it can be helpful for
-   * debugging and making sense of the manifest.
-   *
-   * For live playlists, to account for values increasing in manifests when periods are
-   * removed on refreshes, merging logic should be used to update the numbers to their
-   * appropriate values (to ensure they're sequential and increasing).
-   *
-   * @param {Object[]} playlists - the playlists to update
-   * @param {TimelineStart[]} timelineStarts - the timeline starts for the manifest
-   */
-
-  const addMediaSequenceValues = (playlists, timelineStarts) => {
-    // increment all segments sequentially
-    playlists.forEach(playlist => {
-      playlist.mediaSequence = 0;
-      playlist.discontinuitySequence = timelineStarts.findIndex(function ({
-        timeline
-      }) {
-        return timeline === playlist.timeline;
-      });
-      if (!playlist.segments) {
-        return;
-      }
-      playlist.segments.forEach((segment, index) => {
-        segment.number = index;
-      });
-    });
-  };
-  /**
-   * Given a media group object, flattens all playlists within the media group into a single
-   * array.
-   *
-   * @param {Object} mediaGroupObject - the media group object
-   *
-   * @return {Object[]}
-   *         The media group playlists
-   */
-
-  const flattenMediaGroupPlaylists = mediaGroupObject => {
-    if (!mediaGroupObject) {
-      return [];
-    }
-    return Object.keys(mediaGroupObject).reduce((acc, label) => {
-      const labelContents = mediaGroupObject[label];
-      return acc.concat(labelContents.playlists);
-    }, []);
-  };
-  const toM3u8 = ({
-    dashPlaylists,
-    locations,
-    contentSteering,
-    sidxMapping = {},
-    previousManifest,
-    eventStream
-  }) => {
-    if (!dashPlaylists.length) {
-      return {};
-    } // grab all main manifest attributes
-
-    const {
-      sourceDuration: duration,
-      type,
-      suggestedPresentationDelay,
-      minimumUpdatePeriod
-    } = dashPlaylists[0].attributes;
-    const videoPlaylists = mergeDiscontiguousPlaylists(dashPlaylists.filter(videoOnly)).map(formatVideoPlaylist);
-    const audioPlaylists = mergeDiscontiguousPlaylists(dashPlaylists.filter(audioOnly));
-    const vttPlaylists = mergeDiscontiguousPlaylists(dashPlaylists.filter(vttOnly));
-    const captions = dashPlaylists.map(playlist => playlist.attributes.captionServices).filter(Boolean);
-    const manifest = {
-      allowCache: true,
-      discontinuityStarts: [],
-      segments: [],
-      endList: true,
-      mediaGroups: {
-        AUDIO: {},
-        VIDEO: {},
-        ['CLOSED-CAPTIONS']: {},
-        SUBTITLES: {}
-      },
-      uri: '',
-      duration,
-      playlists: addSidxSegmentsToPlaylists(videoPlaylists, sidxMapping)
-    };
-    if (minimumUpdatePeriod >= 0) {
-      manifest.minimumUpdatePeriod = minimumUpdatePeriod * 1000;
-    }
-    if (locations) {
-      manifest.locations = locations;
-    }
-    if (contentSteering) {
-      manifest.contentSteering = contentSteering;
-    }
-    if (type === 'dynamic') {
-      manifest.suggestedPresentationDelay = suggestedPresentationDelay;
-    }
-    if (eventStream && eventStream.length > 0) {
-      manifest.eventStream = eventStream;
-    }
-    const isAudioOnly = manifest.playlists.length === 0;
-    const organizedAudioGroup = audioPlaylists.length ? organizeAudioPlaylists(audioPlaylists, sidxMapping, isAudioOnly) : null;
-    const organizedVttGroup = vttPlaylists.length ? organizeVttPlaylists(vttPlaylists, sidxMapping) : null;
-    const formattedPlaylists = videoPlaylists.concat(flattenMediaGroupPlaylists(organizedAudioGroup), flattenMediaGroupPlaylists(organizedVttGroup));
-    const playlistTimelineStarts = formattedPlaylists.map(({
-      timelineStarts
-    }) => timelineStarts);
-    manifest.timelineStarts = getUniqueTimelineStarts(playlistTimelineStarts);
-    addMediaSequenceValues(formattedPlaylists, manifest.timelineStarts);
-    if (organizedAudioGroup) {
-      manifest.mediaGroups.AUDIO.audio = organizedAudioGroup;
-    }
-    if (organizedVttGroup) {
-      manifest.mediaGroups.SUBTITLES.subs = organizedVttGroup;
-    }
-    if (captions.length) {
-      manifest.mediaGroups['CLOSED-CAPTIONS'].cc = organizeCaptionServices(captions);
-    }
-    if (previousManifest) {
-      return positionManifestOnTimeline({
-        oldManifest: previousManifest,
-        newManifest: manifest
-      });
-    }
-    return manifest;
-  };
-
-  /**
-   * Calculates the R (repetition) value for a live stream (for the final segment
-   * in a manifest where the r value is negative 1)
-   *
-   * @param {Object} attributes
-   *        Object containing all inherited attributes from parent elements with attribute
-   *        names as keys
-   * @param {number} time
-   *        current time (typically the total time up until the final segment)
-   * @param {number} duration
-   *        duration property for the given <S />
-   *
-   * @return {number}
-   *        R value to reach the end of the given period
-   */
-  const getLiveRValue = (attributes, time, duration) => {
-    const {
-      NOW,
-      clientOffset,
-      availabilityStartTime,
-      timescale = 1,
-      periodStart = 0,
-      minimumUpdatePeriod = 0
-    } = attributes;
-    const now = (NOW + clientOffset) / 1000;
-    const periodStartWC = availabilityStartTime + periodStart;
-    const periodEndWC = now + minimumUpdatePeriod;
-    const periodDuration = periodEndWC - periodStartWC;
-    return Math.ceil((periodDuration * timescale - time) / duration);
-  };
-  /**
-   * Uses information provided by SegmentTemplate.SegmentTimeline to determine segment
-   * timing and duration
-   *
-   * @param {Object} attributes
-   *        Object containing all inherited attributes from parent elements with attribute
-   *        names as keys
-   * @param {Object[]} segmentTimeline
-   *        List of objects representing the attributes of each S element contained within
-   *
-   * @return {{number: number, duration: number, time: number, timeline: number}[]}
-   *         List of Objects with segment timing and duration info
-   */
-
-  const parseByTimeline = (attributes, segmentTimeline) => {
-    const {
-      type,
-      minimumUpdatePeriod = 0,
-      media = '',
-      sourceDuration,
-      timescale = 1,
-      startNumber = 1,
-      periodStart: timeline
-    } = attributes;
-    const segments = [];
-    let time = -1;
-    for (let sIndex = 0; sIndex < segmentTimeline.length; sIndex++) {
-      const S = segmentTimeline[sIndex];
-      const duration = S.d;
-      const repeat = S.r || 0;
-      const segmentTime = S.t || 0;
-      if (time < 0) {
-        // first segment
-        time = segmentTime;
-      }
-      if (segmentTime && segmentTime > time) {
-        // discontinuity
-        // TODO: How to handle this type of discontinuity
-        // timeline++ here would treat it like HLS discontuity and content would
-        // get appended without gap
-        // E.G.
-        //  <S t="0" d="1" />
-        //  <S d="1" />
-        //  <S d="1" />
-        //  <S t="5" d="1" />
-        // would have $Time$ values of [0, 1, 2, 5]
-        // should this be appened at time positions [0, 1, 2, 3],(#EXT-X-DISCONTINUITY)
-        // or [0, 1, 2, gap, gap, 5]? (#EXT-X-GAP)
-        // does the value of sourceDuration consider this when calculating arbitrary
-        // negative @r repeat value?
-        // E.G. Same elements as above with this added at the end
-        //  <S d="1" r="-1" />
-        //  with a sourceDuration of 10
-        // Would the 2 gaps be included in the time duration calculations resulting in
-        // 8 segments with $Time$ values of [0, 1, 2, 5, 6, 7, 8, 9] or 10 segments
-        // with $Time$ values of [0, 1, 2, 5, 6, 7, 8, 9, 10, 11] ?
-        time = segmentTime;
-      }
-      let count;
-      if (repeat < 0) {
-        const nextS = sIndex + 1;
-        if (nextS === segmentTimeline.length) {
-          // last segment
-          if (type === 'dynamic' && minimumUpdatePeriod > 0 && media.indexOf('$Number$') > 0) {
-            count = getLiveRValue(attributes, time, duration);
-          } else {
-            // TODO: This may be incorrect depending on conclusion of TODO above
-            count = (sourceDuration * timescale - time) / duration;
-          }
-        } else {
-          count = (segmentTimeline[nextS].t - time) / duration;
-        }
-      } else {
-        count = repeat + 1;
-      }
-      const end = startNumber + segments.length + count;
-      let number = startNumber + segments.length;
-      while (number < end) {
-        segments.push({
-          number,
-          duration: duration / timescale,
-          time,
-          timeline
-        });
-        time += duration;
-        number++;
-      }
-    }
-    return segments;
-  };
-  const identifierPattern = /\$([A-z]*)(?:(%0)([0-9]+)d)?\$/g;
-  /**
-   * Replaces template identifiers with corresponding values. To be used as the callback
-   * for String.prototype.replace
-   *
-   * @name replaceCallback
-   * @function
-   * @param {string} match
-   *        Entire match of identifier
-   * @param {string} identifier
-   *        Name of matched identifier
-   * @param {string} format
-   *        Format tag string. Its presence indicates that padding is expected
-   * @param {string} width
-   *        Desired length of the replaced value. Values less than this width shall be left
-   *        zero padded
-   * @return {string}
-   *         Replacement for the matched identifier
-   */
-
-  /**
-   * Returns a function to be used as a callback for String.prototype.replace to replace
-   * template identifiers
-   *
-   * @param {Obect} values
-   *        Object containing values that shall be used to replace known identifiers
-   * @param {number} values.RepresentationID
-   *        Value of the Representation@id attribute
-   * @param {number} values.Number
-   *        Number of the corresponding segment
-   * @param {number} values.Bandwidth
-   *        Value of the Representation@bandwidth attribute.
-   * @param {number} values.Time
-   *        Timestamp value of the corresponding segment
-   * @return {replaceCallback}
-   *         Callback to be used with String.prototype.replace to replace identifiers
-   */
-
-  const identifierReplacement = values => (match, identifier, format, width) => {
-    if (match === '$$') {
-      // escape sequence
-      return '$';
-    }
-    if (typeof values[identifier] === 'undefined') {
-      return match;
-    }
-    const value = '' + values[identifier];
-    if (identifier === 'RepresentationID') {
-      // Format tag shall not be present with RepresentationID
-      return value;
-    }
-    if (!format) {
-      width = 1;
-    } else {
-      width = parseInt(width, 10);
-    }
-    if (value.length >= width) {
-      return value;
-    }
-    return `${new Array(width - value.length + 1).join('0')}${value}`;
-  };
-  /**
-   * Constructs a segment url from a template string
-   *
-   * @param {string} url
-   *        Template string to construct url from
-   * @param {Obect} values
-   *        Object containing values that shall be used to replace known identifiers
-   * @param {number} values.RepresentationID
-   *        Value of the Representation@id attribute
-   * @param {number} values.Number
-   *        Number of the corresponding segment
-   * @param {number} values.Bandwidth
-   *        Value of the Representation@bandwidth attribute.
-   * @param {number} values.Time
-   *        Timestamp value of the corresponding segment
-   * @return {string}
-   *         Segment url with identifiers replaced
-   */
-
-  const constructTemplateUrl = (url, values) => url.replace(identifierPattern, identifierReplacement(values));
-  /**
-   * Generates a list of objects containing timing and duration information about each
-   * segment needed to generate segment uris and the complete segment object
-   *
-   * @param {Object} attributes
-   *        Object containing all inherited attributes from parent elements with attribute
-   *        names as keys
-   * @param {Object[]|undefined} segmentTimeline
-   *        List of objects representing the attributes of each S element contained within
-   *        the SegmentTimeline element
-   * @return {{number: number, duration: number, time: number, timeline: number}[]}
-   *         List of Objects with segment timing and duration info
-   */
-
-  const parseTemplateInfo = (attributes, segmentTimeline) => {
-    if (!attributes.duration && !segmentTimeline) {
-      // if neither @duration or SegmentTimeline are present, then there shall be exactly
-      // one media segment
-      return [{
-        number: attributes.startNumber || 1,
-        duration: attributes.sourceDuration,
-        time: 0,
-        timeline: attributes.periodStart
-      }];
-    }
-    if (attributes.duration) {
-      return parseByDuration(attributes);
-    }
-    return parseByTimeline(attributes, segmentTimeline);
-  };
-  /**
-   * Generates a list of segments using information provided by the SegmentTemplate element
-   *
-   * @param {Object} attributes
-   *        Object containing all inherited attributes from parent elements with attribute
-   *        names as keys
-   * @param {Object[]|undefined} segmentTimeline
-   *        List of objects representing the attributes of each S element contained within
-   *        the SegmentTimeline element
-   * @return {Object[]}
-   *         List of segment objects
-   */
-
-  const segmentsFromTemplate = (attributes, segmentTimeline) => {
-    const templateValues = {
-      RepresentationID: attributes.id,
-      Bandwidth: attributes.bandwidth || 0
-    };
-    const {
-      initialization = {
-        sourceURL: '',
-        range: ''
-      }
-    } = attributes;
-    const mapSegment = urlTypeToSegment({
-      baseUrl: attributes.baseUrl,
-      source: constructTemplateUrl(initialization.sourceURL, templateValues),
-      range: initialization.range
-    });
-    const segments = parseTemplateInfo(attributes, segmentTimeline);
-    return segments.map(segment => {
-      templateValues.Number = segment.number;
-      templateValues.Time = segment.time;
-      const uri = constructTemplateUrl(attributes.media || '', templateValues); // See DASH spec section 5.3.9.2.2
-      // - if timescale isn't present on any level, default to 1.
-
-      const timescale = attributes.timescale || 1; // - if presentationTimeOffset isn't present on any level, default to 0
-
-      const presentationTimeOffset = attributes.presentationTimeOffset || 0;
-      const presentationTime =
-      // Even if the @t attribute is not specified for the segment, segment.time is
-      // calculated in mpd-parser prior to this, so it's assumed to be available.
-      attributes.periodStart + (segment.time - presentationTimeOffset) / timescale;
-      const map = {
-        uri,
-        timeline: segment.timeline,
-        duration: segment.duration,
-        resolvedUri: resolveUrl$1(attributes.baseUrl || '', uri),
-        map: mapSegment,
-        number: segment.number,
-        presentationTime
-      };
-      return map;
-    });
-  };
-
-  /**
-   * Converts a <SegmentUrl> (of type URLType from the DASH spec 5.3.9.2 Table 14)
-   * to an object that matches the output of a segment in videojs/mpd-parser
-   *
-   * @param {Object} attributes
-   *   Object containing all inherited attributes from parent elements with attribute
-   *   names as keys
-   * @param {Object} segmentUrl
-   *   <SegmentURL> node to translate into a segment object
-   * @return {Object} translated segment object
-   */
-
-  const SegmentURLToSegmentObject = (attributes, segmentUrl) => {
-    const {
-      baseUrl,
-      initialization = {}
-    } = attributes;
-    const initSegment = urlTypeToSegment({
-      baseUrl,
-      source: initialization.sourceURL,
-      range: initialization.range
-    });
-    const segment = urlTypeToSegment({
-      baseUrl,
-      source: segmentUrl.media,
-      range: segmentUrl.mediaRange
-    });
-    segment.map = initSegment;
-    return segment;
-  };
-  /**
-   * Generates a list of segments using information provided by the SegmentList element
-   * SegmentList (DASH SPEC Section 5.3.9.3.2) contains a set of <SegmentURL> nodes.  Each
-   * node should be translated into segment.
-   *
-   * @param {Object} attributes
-   *   Object containing all inherited attributes from parent elements with attribute
-   *   names as keys
-   * @param {Object[]|undefined} segmentTimeline
-   *        List of objects representing the attributes of each S element contained within
-   *        the SegmentTimeline element
-   * @return {Object.<Array>} list of segments
-   */
-
-  const segmentsFromList = (attributes, segmentTimeline) => {
-    const {
-      duration,
-      segmentUrls = [],
-      periodStart
-    } = attributes; // Per spec (5.3.9.2.1) no way to determine segment duration OR
-    // if both SegmentTimeline and @duration are defined, it is outside of spec.
-
-    if (!duration && !segmentTimeline || duration && segmentTimeline) {
-      throw new Error(errors.SEGMENT_TIME_UNSPECIFIED);
-    }
-    const segmentUrlMap = segmentUrls.map(segmentUrlObject => SegmentURLToSegmentObject(attributes, segmentUrlObject));
-    let segmentTimeInfo;
-    if (duration) {
-      segmentTimeInfo = parseByDuration(attributes);
-    }
-    if (segmentTimeline) {
-      segmentTimeInfo = parseByTimeline(attributes, segmentTimeline);
-    }
-    const segments = segmentTimeInfo.map((segmentTime, index) => {
-      if (segmentUrlMap[index]) {
-        const segment = segmentUrlMap[index]; // See DASH spec section 5.3.9.2.2
-        // - if timescale isn't present on any level, default to 1.
-
-        const timescale = attributes.timescale || 1; // - if presentationTimeOffset isn't present on any level, default to 0
-
-        const presentationTimeOffset = attributes.presentationTimeOffset || 0;
-        segment.timeline = segmentTime.timeline;
-        segment.duration = segmentTime.duration;
-        segment.number = segmentTime.number;
-        segment.presentationTime = periodStart + (segmentTime.time - presentationTimeOffset) / timescale;
-        return segment;
-      } // Since we're mapping we should get rid of any blank segments (in case
-      // the given SegmentTimeline is handling for more elements than we have
-      // SegmentURLs for).
-    }).filter(segment => segment);
-    return segments;
-  };
-  const generateSegments = ({
-    attributes,
-    segmentInfo
-  }) => {
-    let segmentAttributes;
-    let segmentsFn;
-    if (segmentInfo.template) {
-      segmentsFn = segmentsFromTemplate;
-      segmentAttributes = merge$1(attributes, segmentInfo.template);
-    } else if (segmentInfo.base) {
-      segmentsFn = segmentsFromBase;
-      segmentAttributes = merge$1(attributes, segmentInfo.base);
-    } else if (segmentInfo.list) {
-      segmentsFn = segmentsFromList;
-      segmentAttributes = merge$1(attributes, segmentInfo.list);
-    }
-    const segmentsInfo = {
-      attributes
-    };
-    if (!segmentsFn) {
-      return segmentsInfo;
-    }
-    const segments = segmentsFn(segmentAttributes, segmentInfo.segmentTimeline); // The @duration attribute will be used to determin the playlist's targetDuration which
-    // must be in seconds. Since we've generated the segment list, we no longer need
-    // @duration to be in @timescale units, so we can convert it here.
-
-    if (segmentAttributes.duration) {
-      const {
-        duration,
-        timescale = 1
-      } = segmentAttributes;
-      segmentAttributes.duration = duration / timescale;
-    } else if (segments.length) {
-      // if there is no @duration attribute, use the largest segment duration as
-      // as target duration
-      segmentAttributes.duration = segments.reduce((max, segment) => {
-        return Math.max(max, Math.ceil(segment.duration));
-      }, 0);
-    } else {
-      segmentAttributes.duration = 0;
-    }
-    segmentsInfo.attributes = segmentAttributes;
-    segmentsInfo.segments = segments; // This is a sidx box without actual segment information
-
-    if (segmentInfo.base && segmentAttributes.indexRange) {
-      segmentsInfo.sidx = segments[0];
-      segmentsInfo.segments = [];
-    }
-    return segmentsInfo;
-  };
-  const toPlaylists = representations => representations.map(generateSegments);
-  const findChildren = (element, name) => from(element.childNodes).filter(({
-    tagName
-  }) => tagName === name);
-  const getContent = element => element.textContent.trim();
-
-  /**
-   * Converts the provided string that may contain a division operation to a number.
-   *
-   * @param {string} value - the provided string value
-   *
-   * @return {number} the parsed string value
-   */
-  const parseDivisionValue = value => {
-    return parseFloat(value.split('/').reduce((prev, current) => prev / current));
-  };
-  const parseDuration = str => {
-    const SECONDS_IN_YEAR = 365 * 24 * 60 * 60;
-    const SECONDS_IN_MONTH = 30 * 24 * 60 * 60;
-    const SECONDS_IN_DAY = 24 * 60 * 60;
-    const SECONDS_IN_HOUR = 60 * 60;
-    const SECONDS_IN_MIN = 60; // P10Y10M10DT10H10M10.1S
-
-    const durationRegex = /P(?:(\d*)Y)?(?:(\d*)M)?(?:(\d*)D)?(?:T(?:(\d*)H)?(?:(\d*)M)?(?:([\d.]*)S)?)?/;
-    const match = durationRegex.exec(str);
-    if (!match) {
-      return 0;
-    }
-    const [year, month, day, hour, minute, second] = match.slice(1);
-    return parseFloat(year || 0) * SECONDS_IN_YEAR + parseFloat(month || 0) * SECONDS_IN_MONTH + parseFloat(day || 0) * SECONDS_IN_DAY + parseFloat(hour || 0) * SECONDS_IN_HOUR + parseFloat(minute || 0) * SECONDS_IN_MIN + parseFloat(second || 0);
-  };
-  const parseDate = str => {
-    // Date format without timezone according to ISO 8601
-    // YYY-MM-DDThh:mm:ss.ssssss
-    const dateRegex = /^\d+-\d+-\d+T\d+:\d+:\d+(\.\d+)?$/; // If the date string does not specifiy a timezone, we must specifiy UTC. This is
-    // expressed by ending with 'Z'
-
-    if (dateRegex.test(str)) {
-      str += 'Z';
-    }
-    return Date.parse(str);
-  };
-  const parsers = {
-    /**
-     * Specifies the duration of the entire Media Presentation. Format is a duration string
-     * as specified in ISO 8601
-     *
-     * @param {string} value
-     *        value of attribute as a string
-     * @return {number}
-     *         The duration in seconds
-     */
-    mediaPresentationDuration(value) {
-      return parseDuration(value);
-    },
-    /**
-     * Specifies the Segment availability start time for all Segments referred to in this
-     * MPD. For a dynamic manifest, it specifies the anchor for the earliest availability
-     * time. Format is a date string as specified in ISO 8601
-     *
-     * @param {string} value
-     *        value of attribute as a string
-     * @return {number}
-     *         The date as seconds from unix epoch
-     */
-    availabilityStartTime(value) {
-      return parseDate(value) / 1000;
-    },
-    /**
-     * Specifies the smallest period between potential changes to the MPD. Format is a
-     * duration string as specified in ISO 8601
-     *
-     * @param {string} value
-     *        value of attribute as a string
-     * @return {number}
-     *         The duration in seconds
-     */
-    minimumUpdatePeriod(value) {
-      return parseDuration(value);
-    },
-    /**
-     * Specifies the suggested presentation delay. Format is a
-     * duration string as specified in ISO 8601
-     *
-     * @param {string} value
-     *        value of attribute as a string
-     * @return {number}
-     *         The duration in seconds
-     */
-    suggestedPresentationDelay(value) {
-      return parseDuration(value);
-    },
-    /**
-     * specifices the type of mpd. Can be either "static" or "dynamic"
-     *
-     * @param {string} value
-     *        value of attribute as a string
-     *
-     * @return {string}
-     *         The type as a string
-     */
-    type(value) {
-      return value;
-    },
-    /**
-     * Specifies the duration of the smallest time shifting buffer for any Representation
-     * in the MPD. Format is a duration string as specified in ISO 8601
-     *
-     * @param {string} value
-     *        value of attribute as a string
-     * @return {number}
-     *         The duration in seconds
-     */
-    timeShiftBufferDepth(value) {
-      return parseDuration(value);
-    },
-    /**
-     * Specifies the PeriodStart time of the Period relative to the availabilityStarttime.
-     * Format is a duration string as specified in ISO 8601
-     *
-     * @param {string} value
-     *        value of attribute as a string
-     * @return {number}
-     *         The duration in seconds
-     */
-    start(value) {
-      return parseDuration(value);
-    },
-    /**
-     * Specifies the width of the visual presentation
-     *
-     * @param {string} value
-     *        value of attribute as a string
-     * @return {number}
-     *         The parsed width
-     */
-    width(value) {
-      return parseInt(value, 10);
-    },
-    /**
-     * Specifies the height of the visual presentation
-     *
-     * @param {string} value
-     *        value of attribute as a string
-     * @return {number}
-     *         The parsed height
-     */
-    height(value) {
-      return parseInt(value, 10);
-    },
-    /**
-     * Specifies the bitrate of the representation
-     *
-     * @param {string} value
-     *        value of attribute as a string
-     * @return {number}
-     *         The parsed bandwidth
-     */
-    bandwidth(value) {
-      return parseInt(value, 10);
-    },
-    /**
-     * Specifies the frame rate of the representation
-     *
-     * @param {string} value
-     *        value of attribute as a string
-     * @return {number}
-     *         The parsed frame rate
-     */
-    frameRate(value) {
-      return parseDivisionValue(value);
-    },
-    /**
-     * Specifies the number of the first Media Segment in this Representation in the Period
-     *
-     * @param {string} value
-     *        value of attribute as a string
-     * @return {number}
-     *         The parsed number
-     */
-    startNumber(value) {
-      return parseInt(value, 10);
-    },
-    /**
-     * Specifies the timescale in units per seconds
-     *
-     * @param {string} value
-     *        value of attribute as a string
-     * @return {number}
-     *         The parsed timescale
-     */
-    timescale(value) {
-      return parseInt(value, 10);
-    },
-    /**
-     * Specifies the presentationTimeOffset.
-     *
-     * @param {string} value
-     *        value of the attribute as a string
-     *
-     * @return {number}
-     *         The parsed presentationTimeOffset
-     */
-    presentationTimeOffset(value) {
-      return parseInt(value, 10);
-    },
-    /**
-     * Specifies the constant approximate Segment duration
-     * NOTE: The <Period> element also contains an @duration attribute. This duration
-     *       specifies the duration of the Period. This attribute is currently not
-     *       supported by the rest of the parser, however we still check for it to prevent
-     *       errors.
-     *
-     * @param {string} value
-     *        value of attribute as a string
-     * @return {number}
-     *         The parsed duration
-     */
-    duration(value) {
-      const parsedValue = parseInt(value, 10);
-      if (isNaN(parsedValue)) {
-        return parseDuration(value);
-      }
-      return parsedValue;
-    },
-    /**
-     * Specifies the Segment duration, in units of the value of the @timescale.
-     *
-     * @param {string} value
-     *        value of attribute as a string
-     * @return {number}
-     *         The parsed duration
-     */
-    d(value) {
-      return parseInt(value, 10);
-    },
-    /**
-     * Specifies the MPD start time, in @timescale units, the first Segment in the series
-     * starts relative to the beginning of the Period
-     *
-     * @param {string} value
-     *        value of attribute as a string
-     * @return {number}
-     *         The parsed time
-     */
-    t(value) {
-      return parseInt(value, 10);
-    },
-    /**
-     * Specifies the repeat count of the number of following contiguous Segments with the
-     * same duration expressed by the value of @d
-     *
-     * @param {string} value
-     *        value of attribute as a string
-     * @return {number}
-     *         The parsed number
-     */
-    r(value) {
-      return parseInt(value, 10);
-    },
-    /**
-     * Specifies the presentationTime.
-     *
-     * @param {string} value
-     *        value of the attribute as a string
-     *
-     * @return {number}
-     *         The parsed presentationTime
-     */
-    presentationTime(value) {
-      return parseInt(value, 10);
-    },
-    /**
-     * Default parser for all other attributes. Acts as a no-op and just returns the value
-     * as a string
-     *
-     * @param {string} value
-     *        value of attribute as a string
-     * @return {string}
-     *         Unparsed value
-     */
-    DEFAULT(value) {
-      return value;
-    }
-  };
-  /**
-   * Gets all the attributes and values of the provided node, parses attributes with known
-   * types, and returns an object with attribute names mapped to values.
-   *
-   * @param {Node} el
-   *        The node to parse attributes from
-   * @return {Object}
-   *         Object with all attributes of el parsed
-   */
-
-  const parseAttributes = el => {
-    if (!(el && el.attributes)) {
-      return {};
-    }
-    return from(el.attributes).reduce((a, e) => {
-      const parseFn = parsers[e.name] || parsers.DEFAULT;
-      a[e.name] = parseFn(e.value);
-      return a;
-    }, {});
-  };
-  const keySystemsMap = {
-    'urn:uuid:1077efec-c0b2-4d02-ace3-3c1e52e2fb4b': 'org.w3.clearkey',
-    'urn:uuid:edef8ba9-79d6-4ace-a3c8-27dcd51d21ed': 'com.widevine.alpha',
-    'urn:uuid:9a04f079-9840-4286-ab92-e65be0885f95': 'com.microsoft.playready',
-    'urn:uuid:f239e769-efa3-4850-9c16-a903c6932efb': 'com.adobe.primetime',
-    // ISO_IEC 23009-1_2022 5.8.5.2.2 The mp4 Protection Scheme
-    'urn:mpeg:dash:mp4protection:2011': 'mp4protection'
-  };
-  /**
-   * Builds a list of urls that is the product of the reference urls and BaseURL values
-   *
-   * @param {Object[]} references
-   *        List of objects containing the reference URL as well as its attributes
-   * @param {Node[]} baseUrlElements
-   *        List of BaseURL nodes from the mpd
-   * @return {Object[]}
-   *         List of objects with resolved urls and attributes
-   */
-
-  const buildBaseUrls = (references, baseUrlElements) => {
-    if (!baseUrlElements.length) {
-      return references;
-    }
-    return flatten(references.map(function (reference) {
-      return baseUrlElements.map(function (baseUrlElement) {
-        const initialBaseUrl = getContent(baseUrlElement);
-        const resolvedBaseUrl = resolveUrl$1(reference.baseUrl, initialBaseUrl);
-        const finalBaseUrl = merge$1(parseAttributes(baseUrlElement), {
-          baseUrl: resolvedBaseUrl
-        }); // If the URL is resolved, we want to get the serviceLocation from the reference
-        // assuming there is no serviceLocation on the initialBaseUrl
-
-        if (resolvedBaseUrl !== initialBaseUrl && !finalBaseUrl.serviceLocation && reference.serviceLocation) {
-          finalBaseUrl.serviceLocation = reference.serviceLocation;
-        }
-        return finalBaseUrl;
-      });
-    }));
-  };
-  /**
-   * Contains all Segment information for its containing AdaptationSet
-   *
-   * @typedef {Object} SegmentInformation
-   * @property {Object|undefined} template
-   *           Contains the attributes for the SegmentTemplate node
-   * @property {Object[]|undefined} segmentTimeline
-   *           Contains a list of atrributes for each S node within the SegmentTimeline node
-   * @property {Object|undefined} list
-   *           Contains the attributes for the SegmentList node
-   * @property {Object|undefined} base
-   *           Contains the attributes for the SegmentBase node
-   */
-
-  /**
-   * Returns all available Segment information contained within the AdaptationSet node
-   *
-   * @param {Node} adaptationSet
-   *        The AdaptationSet node to get Segment information from
-   * @return {SegmentInformation}
-   *         The Segment information contained within the provided AdaptationSet
-   */
-
-  const getSegmentInformation = adaptationSet => {
-    const segmentTemplate = findChildren(adaptationSet, 'SegmentTemplate')[0];
-    const segmentList = findChildren(adaptationSet, 'SegmentList')[0];
-    const segmentUrls = segmentList && findChildren(segmentList, 'SegmentURL').map(s => merge$1({
-      tag: 'SegmentURL'
-    }, parseAttributes(s)));
-    const segmentBase = findChildren(adaptationSet, 'SegmentBase')[0];
-    const segmentTimelineParentNode = segmentList || segmentTemplate;
-    const segmentTimeline = segmentTimelineParentNode && findChildren(segmentTimelineParentNode, 'SegmentTimeline')[0];
-    const segmentInitializationParentNode = segmentList || segmentBase || segmentTemplate;
-    const segmentInitialization = segmentInitializationParentNode && findChildren(segmentInitializationParentNode, 'Initialization')[0]; // SegmentTemplate is handled slightly differently, since it can have both
-    // @initialization and an <Initialization> node.  @initialization can be templated,
-    // while the node can have a url and range specified.  If the <SegmentTemplate> has
-    // both @initialization and an <Initialization> subelement we opt to override with
-    // the node, as this interaction is not defined in the spec.
-
-    const template = segmentTemplate && parseAttributes(segmentTemplate);
-    if (template && segmentInitialization) {
-      template.initialization = segmentInitialization && parseAttributes(segmentInitialization);
-    } else if (template && template.initialization) {
-      // If it is @initialization we convert it to an object since this is the format that
-      // later functions will rely on for the initialization segment.  This is only valid
-      // for <SegmentTemplate>
-      template.initialization = {
-        sourceURL: template.initialization
-      };
-    }
-    const segmentInfo = {
-      template,
-      segmentTimeline: segmentTimeline && findChildren(segmentTimeline, 'S').map(s => parseAttributes(s)),
-      list: segmentList && merge$1(parseAttributes(segmentList), {
-        segmentUrls,
-        initialization: parseAttributes(segmentInitialization)
-      }),
-      base: segmentBase && merge$1(parseAttributes(segmentBase), {
-        initialization: parseAttributes(segmentInitialization)
-      })
-    };
-    Object.keys(segmentInfo).forEach(key => {
-      if (!segmentInfo[key]) {
-        delete segmentInfo[key];
-      }
-    });
-    return segmentInfo;
-  };
-  /**
-   * Contains Segment information and attributes needed to construct a Playlist object
-   * from a Representation
-   *
-   * @typedef {Object} RepresentationInformation
-   * @property {SegmentInformation} segmentInfo
-   *           Segment information for this Representation
-   * @property {Object} attributes
-   *           Inherited attributes for this Representation
-   */
-
-  /**
-   * Maps a Representation node to an object containing Segment information and attributes
-   *
-   * @name inheritBaseUrlsCallback
-   * @function
-   * @param {Node} representation
-   *        Representation node from the mpd
-   * @return {RepresentationInformation}
-   *         Representation information needed to construct a Playlist object
-   */
-
-  /**
-   * Returns a callback for Array.prototype.map for mapping Representation nodes to
-   * Segment information and attributes using inherited BaseURL nodes.
-   *
-   * @param {Object} adaptationSetAttributes
-   *        Contains attributes inherited by the AdaptationSet
-   * @param {Object[]} adaptationSetBaseUrls
-   *        List of objects containing resolved base URLs and attributes
-   *        inherited by the AdaptationSet
-   * @param {SegmentInformation} adaptationSetSegmentInfo
-   *        Contains Segment information for the AdaptationSet
-   * @return {inheritBaseUrlsCallback}
-   *         Callback map function
-   */
-
-  const inheritBaseUrls = (adaptationSetAttributes, adaptationSetBaseUrls, adaptationSetSegmentInfo) => representation => {
-    const repBaseUrlElements = findChildren(representation, 'BaseURL');
-    const repBaseUrls = buildBaseUrls(adaptationSetBaseUrls, repBaseUrlElements);
-    const attributes = merge$1(adaptationSetAttributes, parseAttributes(representation));
-    const representationSegmentInfo = getSegmentInformation(representation);
-    return repBaseUrls.map(baseUrl => {
-      return {
-        segmentInfo: merge$1(adaptationSetSegmentInfo, representationSegmentInfo),
-        attributes: merge$1(attributes, baseUrl)
-      };
-    });
-  };
-  /**
-   * Tranforms a series of content protection nodes to
-   * an object containing pssh data by key system
-   *
-   * @param {Node[]} contentProtectionNodes
-   *        Content protection nodes
-   * @return {Object}
-   *        Object containing pssh data by key system
-   */
-
-  const generateKeySystemInformation = contentProtectionNodes => {
-    return contentProtectionNodes.reduce((acc, node) => {
-      const attributes = parseAttributes(node); // Although it could be argued that according to the UUID RFC spec the UUID string (a-f chars) should be generated
-      // as a lowercase string it also mentions it should be treated as case-insensitive on input. Since the key system
-      // UUIDs in the keySystemsMap are hardcoded as lowercase in the codebase there isn't any reason not to do
-      // .toLowerCase() on the input UUID string from the manifest (at least I could not think of one).
-
-      if (attributes.schemeIdUri) {
-        attributes.schemeIdUri = attributes.schemeIdUri.toLowerCase();
-      }
-      const keySystem = keySystemsMap[attributes.schemeIdUri];
-      if (keySystem) {
-        acc[keySystem] = {
-          attributes
-        };
-        const psshNode = findChildren(node, 'cenc:pssh')[0];
-        if (psshNode) {
-          const pssh = getContent(psshNode);
-          acc[keySystem].pssh = pssh && decodeB64ToUint8Array(pssh);
-        }
-      }
-      return acc;
-    }, {});
-  }; // defined in ANSI_SCTE 214-1 2016
-
-  const parseCaptionServiceMetadata = service => {
-    // 608 captions
-    if (service.schemeIdUri === 'urn:scte:dash:cc:cea-608:2015') {
-      const values = typeof service.value !== 'string' ? [] : service.value.split(';');
-      return values.map(value => {
-        let channel;
-        let language; // default language to value
-
-        language = value;
-        if (/^CC\d=/.test(value)) {
-          [channel, language] = value.split('=');
-        } else if (/^CC\d$/.test(value)) {
-          channel = value;
-        }
-        return {
-          channel,
-          language
-        };
-      });
-    } else if (service.schemeIdUri === 'urn:scte:dash:cc:cea-708:2015') {
-      const values = typeof service.value !== 'string' ? [] : service.value.split(';');
-      return values.map(value => {
-        const flags = {
-          // service or channel number 1-63
-          'channel': undefined,
-          // language is a 3ALPHA per ISO 639.2/B
-          // field is required
-          'language': undefined,
-          // BIT 1/0 or ?
-          // default value is 1, meaning 16:9 aspect ratio, 0 is 4:3, ? is unknown
-          'aspectRatio': 1,
-          // BIT 1/0
-          // easy reader flag indicated the text is tailed to the needs of beginning readers
-          // default 0, or off
-          'easyReader': 0,
-          // BIT 1/0
-          // If 3d metadata is present (CEA-708.1) then 1
-          // default 0
-          '3D': 0
-        };
-        if (/=/.test(value)) {
-          const [channel, opts = ''] = value.split('=');
-          flags.channel = channel;
-          flags.language = value;
-          opts.split(',').forEach(opt => {
-            const [name, val] = opt.split(':');
-            if (name === 'lang') {
-              flags.language = val; // er for easyReadery
-            } else if (name === 'er') {
-              flags.easyReader = Number(val); // war for wide aspect ratio
-            } else if (name === 'war') {
-              flags.aspectRatio = Number(val);
-            } else if (name === '3D') {
-              flags['3D'] = Number(val);
-            }
-          });
-        } else {
-          flags.language = value;
-        }
-        if (flags.channel) {
-          flags.channel = 'SERVICE' + flags.channel;
-        }
-        return flags;
-      });
-    }
-  };
-  /**
-   * A map callback that will parse all event stream data for a collection of periods
-   * DASH ISO_IEC_23009 5.10.2.2
-   * https://dashif-documents.azurewebsites.net/Events/master/event.html#mpd-event-timing
-   *
-   * @param {PeriodInformation} period object containing necessary period information
-   * @return a collection of parsed eventstream event objects
-   */
-
-  const toEventStream = period => {
-    // get and flatten all EventStreams tags and parse attributes and children
-    return flatten(findChildren(period.node, 'EventStream').map(eventStream => {
-      const eventStreamAttributes = parseAttributes(eventStream);
-      const schemeIdUri = eventStreamAttributes.schemeIdUri; // find all Events per EventStream tag and map to return objects
-
-      return findChildren(eventStream, 'Event').map(event => {
-        const eventAttributes = parseAttributes(event);
-        const presentationTime = eventAttributes.presentationTime || 0;
-        const timescale = eventStreamAttributes.timescale || 1;
-        const duration = eventAttributes.duration || 0;
-        const start = presentationTime / timescale + period.attributes.start;
-        return {
-          schemeIdUri,
-          value: eventStreamAttributes.value,
-          id: eventAttributes.id,
-          start,
-          end: start + duration / timescale,
-          messageData: getContent(event) || eventAttributes.messageData,
-          contentEncoding: eventStreamAttributes.contentEncoding,
-          presentationTimeOffset: eventStreamAttributes.presentationTimeOffset || 0
-        };
-      });
-    }));
-  };
-  /**
-   * Maps an AdaptationSet node to a list of Representation information objects
-   *
-   * @name toRepresentationsCallback
-   * @function
-   * @param {Node} adaptationSet
-   *        AdaptationSet node from the mpd
-   * @return {RepresentationInformation[]}
-   *         List of objects containing Representaion information
-   */
-
-  /**
-   * Returns a callback for Array.prototype.map for mapping AdaptationSet nodes to a list of
-   * Representation information objects
-   *
-   * @param {Object} periodAttributes
-   *        Contains attributes inherited by the Period
-   * @param {Object[]} periodBaseUrls
-   *        Contains list of objects with resolved base urls and attributes
-   *        inherited by the Period
-   * @param {string[]} periodSegmentInfo
-   *        Contains Segment Information at the period level
-   * @return {toRepresentationsCallback}
-   *         Callback map function
-   */
-
-  const toRepresentations = (periodAttributes, periodBaseUrls, periodSegmentInfo) => adaptationSet => {
-    const adaptationSetAttributes = parseAttributes(adaptationSet);
-    const adaptationSetBaseUrls = buildBaseUrls(periodBaseUrls, findChildren(adaptationSet, 'BaseURL'));
-    const role = findChildren(adaptationSet, 'Role')[0];
-    const roleAttributes = {
-      role: parseAttributes(role)
-    };
-    let attrs = merge$1(periodAttributes, adaptationSetAttributes, roleAttributes);
-    const accessibility = findChildren(adaptationSet, 'Accessibility')[0];
-    const captionServices = parseCaptionServiceMetadata(parseAttributes(accessibility));
-    if (captionServices) {
-      attrs = merge$1(attrs, {
-        captionServices
-      });
-    }
-    const label = findChildren(adaptationSet, 'Label')[0];
-    if (label && label.childNodes.length) {
-      const labelVal = label.childNodes[0].nodeValue.trim();
-      attrs = merge$1(attrs, {
-        label: labelVal
-      });
-    }
-    const contentProtection = generateKeySystemInformation(findChildren(adaptationSet, 'ContentProtection'));
-    if (Object.keys(contentProtection).length) {
-      attrs = merge$1(attrs, {
-        contentProtection
-      });
-    }
-    const segmentInfo = getSegmentInformation(adaptationSet);
-    const representations = findChildren(adaptationSet, 'Representation');
-    const adaptationSetSegmentInfo = merge$1(periodSegmentInfo, segmentInfo);
-    return flatten(representations.map(inheritBaseUrls(attrs, adaptationSetBaseUrls, adaptationSetSegmentInfo)));
-  };
-  /**
-   * Contains all period information for mapping nodes onto adaptation sets.
-   *
-   * @typedef {Object} PeriodInformation
-   * @property {Node} period.node
-   *           Period node from the mpd
-   * @property {Object} period.attributes
-   *           Parsed period attributes from node plus any added
-   */
-
-  /**
-   * Maps a PeriodInformation object to a list of Representation information objects for all
-   * AdaptationSet nodes contained within the Period.
-   *
-   * @name toAdaptationSetsCallback
-   * @function
-   * @param {PeriodInformation} period
-   *        Period object containing necessary period information
-   * @param {number} periodStart
-   *        Start time of the Period within the mpd
-   * @return {RepresentationInformation[]}
-   *         List of objects containing Representaion information
-   */
-
-  /**
-   * Returns a callback for Array.prototype.map for mapping Period nodes to a list of
-   * Representation information objects
-   *
-   * @param {Object} mpdAttributes
-   *        Contains attributes inherited by the mpd
-    * @param {Object[]} mpdBaseUrls
-   *        Contains list of objects with resolved base urls and attributes
-   *        inherited by the mpd
-   * @return {toAdaptationSetsCallback}
-   *         Callback map function
-   */
-
-  const toAdaptationSets = (mpdAttributes, mpdBaseUrls) => (period, index) => {
-    const periodBaseUrls = buildBaseUrls(mpdBaseUrls, findChildren(period.node, 'BaseURL'));
-    const periodAttributes = merge$1(mpdAttributes, {
-      periodStart: period.attributes.start
-    });
-    if (typeof period.attributes.duration === 'number') {
-      periodAttributes.periodDuration = period.attributes.duration;
-    }
-    const adaptationSets = findChildren(period.node, 'AdaptationSet');
-    const periodSegmentInfo = getSegmentInformation(period.node);
-    return flatten(adaptationSets.map(toRepresentations(periodAttributes, periodBaseUrls, periodSegmentInfo)));
-  };
-  /**
-   * Tranforms an array of content steering nodes into an object
-   * containing CDN content steering information from the MPD manifest.
-   *
-   * For more information on the DASH spec for Content Steering parsing, see:
-   * https://dashif.org/docs/DASH-IF-CTS-00XX-Content-Steering-Community-Review.pdf
-   *
-   * @param {Node[]} contentSteeringNodes
-   *        Content steering nodes
-   * @param {Function} eventHandler
-   *        The event handler passed into the parser options to handle warnings
-   * @return {Object}
-   *        Object containing content steering data
-   */
-
-  const generateContentSteeringInformation = (contentSteeringNodes, eventHandler) => {
-    // If there are more than one ContentSteering tags, throw an error
-    if (contentSteeringNodes.length > 1) {
-      eventHandler({
-        type: 'warn',
-        message: 'The MPD manifest should contain no more than one ContentSteering tag'
-      });
-    } // Return a null value if there are no ContentSteering tags
-
-    if (!contentSteeringNodes.length) {
-      return null;
-    }
-    const infoFromContentSteeringTag = merge$1({
-      serverURL: getContent(contentSteeringNodes[0])
-    }, parseAttributes(contentSteeringNodes[0])); // Converts `queryBeforeStart` to a boolean, as well as setting the default value
-    // to `false` if it doesn't exist
-
-    infoFromContentSteeringTag.queryBeforeStart = infoFromContentSteeringTag.queryBeforeStart === 'true';
-    return infoFromContentSteeringTag;
-  };
-  /**
-   * Gets Period@start property for a given period.
-   *
-   * @param {Object} options
-   *        Options object
-   * @param {Object} options.attributes
-   *        Period attributes
-   * @param {Object} [options.priorPeriodAttributes]
-   *        Prior period attributes (if prior period is available)
-   * @param {string} options.mpdType
-   *        The MPD@type these periods came from
-   * @return {number|null}
-   *         The period start, or null if it's an early available period or error
-   */
-
-  const getPeriodStart = ({
-    attributes,
-    priorPeriodAttributes,
-    mpdType
-  }) => {
-    // Summary of period start time calculation from DASH spec section 5.3.2.1
-    //
-    // A period's start is the first period's start + time elapsed after playing all
-    // prior periods to this one. Periods continue one after the other in time (without
-    // gaps) until the end of the presentation.
-    //
-    // The value of Period@start should be:
-    // 1. if Period@start is present: value of Period@start
-    // 2. if previous period exists and it has @duration: previous Period@start +
-    //    previous Period@duration
-    // 3. if this is first period and MPD@type is 'static': 0
-    // 4. in all other cases, consider the period an "early available period" (note: not
-    //    currently supported)
-    // (1)
-    if (typeof attributes.start === 'number') {
-      return attributes.start;
-    } // (2)
-
-    if (priorPeriodAttributes && typeof priorPeriodAttributes.start === 'number' && typeof priorPeriodAttributes.duration === 'number') {
-      return priorPeriodAttributes.start + priorPeriodAttributes.duration;
-    } // (3)
-
-    if (!priorPeriodAttributes && mpdType === 'static') {
-      return 0;
-    } // (4)
-    // There is currently no logic for calculating the Period@start value if there is
-    // no Period@start or prior Period@start and Period@duration available. This is not made
-    // explicit by the DASH interop guidelines or the DASH spec, however, since there's
-    // nothing about any other resolution strategies, it's implied. Thus, this case should
-    // be considered an early available period, or error, and null should suffice for both
-    // of those cases.
-
-    return null;
-  };
-  /**
-   * Traverses the mpd xml tree to generate a list of Representation information objects
-   * that have inherited attributes from parent nodes
-   *
-   * @param {Node} mpd
-   *        The root node of the mpd
-   * @param {Object} options
-   *        Available options for inheritAttributes
-   * @param {string} options.manifestUri
-   *        The uri source of the mpd
-   * @param {number} options.NOW
-   *        Current time per DASH IOP.  Default is current time in ms since epoch
-   * @param {number} options.clientOffset
-   *        Client time difference from NOW (in milliseconds)
-   * @return {RepresentationInformation[]}
-   *         List of objects containing Representation information
-   */
-
-  const inheritAttributes = (mpd, options = {}) => {
-    const {
-      manifestUri = '',
-      NOW = Date.now(),
-      clientOffset = 0,
-      // TODO: For now, we are expecting an eventHandler callback function
-      // to be passed into the mpd parser as an option.
-      // In the future, we should enable stream parsing by using the Stream class from vhs-utils.
-      // This will support new features including a standardized event handler.
-      // See the m3u8 parser for examples of how stream parsing is currently used for HLS parsing.
-      // https://github.com/videojs/vhs-utils/blob/88d6e10c631e57a5af02c5a62bc7376cd456b4f5/src/stream.js#L9
-      eventHandler = function () {}
-    } = options;
-    const periodNodes = findChildren(mpd, 'Period');
-    if (!periodNodes.length) {
-      throw new Error(errors.INVALID_NUMBER_OF_PERIOD);
-    }
-    const locations = findChildren(mpd, 'Location');
-    const mpdAttributes = parseAttributes(mpd);
-    const mpdBaseUrls = buildBaseUrls([{
-      baseUrl: manifestUri
-    }], findChildren(mpd, 'BaseURL'));
-    const contentSteeringNodes = findChildren(mpd, 'ContentSteering'); // See DASH spec section 5.3.1.2, Semantics of MPD element. Default type to 'static'.
-
-    mpdAttributes.type = mpdAttributes.type || 'static';
-    mpdAttributes.sourceDuration = mpdAttributes.mediaPresentationDuration || 0;
-    mpdAttributes.NOW = NOW;
-    mpdAttributes.clientOffset = clientOffset;
-    if (locations.length) {
-      mpdAttributes.locations = locations.map(getContent);
-    }
-    const periods = []; // Since toAdaptationSets acts on individual periods right now, the simplest approach to
-    // adding properties that require looking at prior periods is to parse attributes and add
-    // missing ones before toAdaptationSets is called. If more such properties are added, it
-    // may be better to refactor toAdaptationSets.
-
-    periodNodes.forEach((node, index) => {
-      const attributes = parseAttributes(node); // Use the last modified prior period, as it may contain added information necessary
-      // for this period.
-
-      const priorPeriod = periods[index - 1];
-      attributes.start = getPeriodStart({
-        attributes,
-        priorPeriodAttributes: priorPeriod ? priorPeriod.attributes : null,
-        mpdType: mpdAttributes.type
-      });
-      periods.push({
-        node,
-        attributes
-      });
-    });
-    return {
-      locations: mpdAttributes.locations,
-      contentSteeringInfo: generateContentSteeringInformation(contentSteeringNodes, eventHandler),
-      // TODO: There are occurences where this `representationInfo` array contains undesired
-      // duplicates. This generally occurs when there are multiple BaseURL nodes that are
-      // direct children of the MPD node. When we attempt to resolve URLs from a combination of the
-      // parent BaseURL and a child BaseURL, and the value does not resolve,
-      // we end up returning the child BaseURL multiple times.
-      // We need to determine a way to remove these duplicates in a safe way.
-      // See: https://github.com/videojs/mpd-parser/pull/17#discussion_r162750527
-      representationInfo: flatten(periods.map(toAdaptationSets(mpdAttributes, mpdBaseUrls))),
-      eventStream: flatten(periods.map(toEventStream))
-    };
-  };
-  const stringToMpdXml = manifestString => {
-    if (manifestString === '') {
-      throw new Error(errors.DASH_EMPTY_MANIFEST);
-    }
-    const parser = new DOMParser();
-    let xml;
-    let mpd;
-    try {
-      xml = parser.parseFromString(manifestString, 'application/xml');
-      mpd = xml && xml.documentElement.tagName === 'MPD' ? xml.documentElement : null;
-    } catch (e) {// ie 11 throws on invalid xml
-    }
-    if (!mpd || mpd && mpd.getElementsByTagName('parsererror').length > 0) {
-      throw new Error(errors.DASH_INVALID_XML);
-    }
-    return mpd;
-  };
-
-  /**
-   * Parses the manifest for a UTCTiming node, returning the nodes attributes if found
-   *
-   * @param {string} mpd
-   *        XML string of the MPD manifest
-   * @return {Object|null}
-   *         Attributes of UTCTiming node specified in the manifest. Null if none found
-   */
-
-  const parseUTCTimingScheme = mpd => {
-    const UTCTimingNode = findChildren(mpd, 'UTCTiming')[0];
-    if (!UTCTimingNode) {
-      return null;
-    }
-    const attributes = parseAttributes(UTCTimingNode);
-    switch (attributes.schemeIdUri) {
-      case 'urn:mpeg:dash:utc:http-head:2014':
-      case 'urn:mpeg:dash:utc:http-head:2012':
-        attributes.method = 'HEAD';
-        break;
-      case 'urn:mpeg:dash:utc:http-xsdate:2014':
-      case 'urn:mpeg:dash:utc:http-iso:2014':
-      case 'urn:mpeg:dash:utc:http-xsdate:2012':
-      case 'urn:mpeg:dash:utc:http-iso:2012':
-        attributes.method = 'GET';
-        break;
-      case 'urn:mpeg:dash:utc:direct:2014':
-      case 'urn:mpeg:dash:utc:direct:2012':
-        attributes.method = 'DIRECT';
-        attributes.value = Date.parse(attributes.value);
-        break;
-      case 'urn:mpeg:dash:utc:http-ntp:2014':
-      case 'urn:mpeg:dash:utc:ntp:2014':
-      case 'urn:mpeg:dash:utc:sntp:2014':
-      default:
-        throw new Error(errors.UNSUPPORTED_UTC_TIMING_SCHEME);
-    }
-    return attributes;
-  };
-  /*
-   * Given a DASH manifest string and options, parses the DASH manifest into an object in the
-   * form outputed by m3u8-parser and accepted by videojs/http-streaming.
-   *
-   * For live DASH manifests, if `previousManifest` is provided in options, then the newly
-   * parsed DASH manifest will have its media sequence and discontinuity sequence values
-   * updated to reflect its position relative to the prior manifest.
-   *
-   * @param {string} manifestString - the DASH manifest as a string
-   * @param {options} [options] - any options
-   *
-   * @return {Object} the manifest object
-   */
-
-  const parse = (manifestString, options = {}) => {
-    const parsedManifestInfo = inheritAttributes(stringToMpdXml(manifestString), options);
-    const playlists = toPlaylists(parsedManifestInfo.representationInfo);
-    return toM3u8({
-      dashPlaylists: playlists,
-      locations: parsedManifestInfo.locations,
-      contentSteering: parsedManifestInfo.contentSteeringInfo,
-      sidxMapping: options.sidxMapping,
-      previousManifest: options.previousManifest,
-      eventStream: parsedManifestInfo.eventStream
-    });
-  };
-  /**
-   * Parses the manifest for a UTCTiming node, returning the nodes attributes if found
-   *
-   * @param {string} manifestString
-   *        XML string of the MPD manifest
-   * @return {Object|null}
-   *         Attributes of UTCTiming node specified in the manifest. Null if none found
-   */
-
-  const parseUTCTiming = manifestString => parseUTCTimingScheme(stringToMpdXml(manifestString));
-
-  var MAX_UINT32 = Math.pow(2, 32);
-  var getUint64$1 = function (uint8) {
-    var dv = new DataView(uint8.buffer, uint8.byteOffset, uint8.byteLength);
-    var value;
-    if (dv.getBigUint64) {
-      value = dv.getBigUint64(0);
-      if (value < Number.MAX_SAFE_INTEGER) {
-        return Number(value);
-      }
-      return value;
-    }
-    return dv.getUint32(0) * MAX_UINT32 + dv.getUint32(4);
-  };
-  var numbers = {
-    getUint64: getUint64$1,
-    MAX_UINT32: MAX_UINT32
-  };
-
-  var getUint64 = numbers.getUint64;
-  var parseSidx = function (data) {
-    var view = new DataView(data.buffer, data.byteOffset, data.byteLength),
-      result = {
-        version: data[0],
-        flags: new Uint8Array(data.subarray(1, 4)),
-        references: [],
-        referenceId: view.getUint32(4),
-        timescale: view.getUint32(8)
-      },
-      i = 12;
-    if (result.version === 0) {
-      result.earliestPresentationTime = view.getUint32(i);
-      result.firstOffset = view.getUint32(i + 4);
-      i += 8;
-    } else {
-      // read 64 bits
-      result.earliestPresentationTime = getUint64(data.subarray(i));
-      result.firstOffset = getUint64(data.subarray(i + 8));
-      i += 16;
-    }
-    i += 2; // reserved
-
-    var referenceCount = view.getUint16(i);
-    i += 2; // start of references
-
-    for (; referenceCount > 0; i += 12, referenceCount--) {
-      result.references.push({
-        referenceType: (data[i] & 0x80) >>> 7,
-        referencedSize: view.getUint32(i) & 0x7FFFFFFF,
-        subsegmentDuration: view.getUint32(i + 4),
-        startsWithSap: !!(data[i + 8] & 0x80),
-        sapType: (data[i + 8] & 0x70) >>> 4,
-        sapDeltaTime: view.getUint32(i + 8) & 0x0FFFFFFF
-      });
-    }
-    return result;
-  };
-  var parseSidx_1 = parseSidx;
-
-  var ID3 = toUint8([0x49, 0x44, 0x33]);
-  var getId3Size = function getId3Size(bytes, offset) {
-    if (offset === void 0) {
-      offset = 0;
-    }
-    bytes = toUint8(bytes);
-    var flags = bytes[offset + 5];
-    var returnSize = bytes[offset + 6] << 21 | bytes[offset + 7] << 14 | bytes[offset + 8] << 7 | bytes[offset + 9];
-    var footerPresent = (flags & 16) >> 4;
-    if (footerPresent) {
-      return returnSize + 20;
-    }
-    return returnSize + 10;
-  };
-  var getId3Offset = function getId3Offset(bytes, offset) {
-    if (offset === void 0) {
-      offset = 0;
-    }
-    bytes = toUint8(bytes);
-    if (bytes.length - offset < 10 || !bytesMatch(bytes, ID3, {
-      offset: offset
-    })) {
-      return offset;
-    }
-    offset += getId3Size(bytes, offset); // recursive check for id3 tags as some files
-    // have multiple ID3 tag sections even though
-    // they should not.
-
-    return getId3Offset(bytes, offset);
-  };
-
-  var normalizePath$1 = function normalizePath(path) {
-    if (typeof path === 'string') {
-      return stringToBytes(path);
-    }
-    if (typeof path === 'number') {
-      return path;
-    }
-    return path;
-  };
-  var normalizePaths$1 = function normalizePaths(paths) {
-    if (!Array.isArray(paths)) {
-      return [normalizePath$1(paths)];
-    }
-    return paths.map(function (p) {
-      return normalizePath$1(p);
-    });
-  };
-  /**
-   * find any number of boxes by name given a path to it in an iso bmff
-   * such as mp4.
-   *
-   * @param {TypedArray} bytes
-   *        bytes for the iso bmff to search for boxes in
-   *
-   * @param {Uint8Array[]|string[]|string|Uint8Array} name
-   *        An array of paths or a single path representing the name
-   *        of boxes to search through in bytes. Paths may be
-   *        uint8 (character codes) or strings.
-   *
-   * @param {boolean} [complete=false]
-   *        Should we search only for complete boxes on the final path.
-   *        This is very useful when you do not want to get back partial boxes
-   *        in the case of streaming files.
-   *
-   * @return {Uint8Array[]}
-   *         An array of the end paths that we found.
-   */
-
-  var findBox = function findBox(bytes, paths, complete) {
-    if (complete === void 0) {
-      complete = false;
-    }
-    paths = normalizePaths$1(paths);
-    bytes = toUint8(bytes);
-    var results = [];
-    if (!paths.length) {
-      // short-circuit the search for empty paths
-      return results;
-    }
-    var i = 0;
-    while (i < bytes.length) {
-      var size = (bytes[i] << 24 | bytes[i + 1] << 16 | bytes[i + 2] << 8 | bytes[i + 3]) >>> 0;
-      var type = bytes.subarray(i + 4, i + 8); // invalid box format.
-
-      if (size === 0) {
-        break;
-      }
-      var end = i + size;
-      if (end > bytes.length) {
-        // this box is bigger than the number of bytes we have
-        // and complete is set, we cannot find any more boxes.
-        if (complete) {
-          break;
-        }
-        end = bytes.length;
-      }
-      var data = bytes.subarray(i + 8, end);
-      if (bytesMatch(type, paths[0])) {
-        if (paths.length === 1) {
-          // this is the end of the path and we've found the box we were
-          // looking for
-          results.push(data);
-        } else {
-          // recursively search for the next box along the path
-          results.push.apply(results, findBox(data, paths.slice(1), complete));
-        }
-      }
-      i = end;
-    } // we've finished searching all of bytes
-
-    return results;
-  };
-
-  // https://matroska-org.github.io/libebml/specs.html
-  // https://www.matroska.org/technical/elements.html
-  // https://www.webmproject.org/docs/container/
-
-  var EBML_TAGS = {
-    EBML: toUint8([0x1A, 0x45, 0xDF, 0xA3]),
-    DocType: toUint8([0x42, 0x82]),
-    Segment: toUint8([0x18, 0x53, 0x80, 0x67]),
-    SegmentInfo: toUint8([0x15, 0x49, 0xA9, 0x66]),
-    Tracks: toUint8([0x16, 0x54, 0xAE, 0x6B]),
-    Track: toUint8([0xAE]),
-    TrackNumber: toUint8([0xd7]),
-    DefaultDuration: toUint8([0x23, 0xe3, 0x83]),
-    TrackEntry: toUint8([0xAE]),
-    TrackType: toUint8([0x83]),
-    FlagDefault: toUint8([0x88]),
-    CodecID: toUint8([0x86]),
-    CodecPrivate: toUint8([0x63, 0xA2]),
-    VideoTrack: toUint8([0xe0]),
-    AudioTrack: toUint8([0xe1]),
-    // Not used yet, but will be used for live webm/mkv
-    // see https://www.matroska.org/technical/basics.html#block-structure
-    // see https://www.matroska.org/technical/basics.html#simpleblock-structure
-    Cluster: toUint8([0x1F, 0x43, 0xB6, 0x75]),
-    Timestamp: toUint8([0xE7]),
-    TimestampScale: toUint8([0x2A, 0xD7, 0xB1]),
-    BlockGroup: toUint8([0xA0]),
-    BlockDuration: toUint8([0x9B]),
-    Block: toUint8([0xA1]),
-    SimpleBlock: toUint8([0xA3])
-  };
-  /**
-   * This is a simple table to determine the length
-   * of things in ebml. The length is one based (starts at 1,
-   * rather than zero) and for every zero bit before a one bit
-   * we add one to length. We also need this table because in some
-   * case we have to xor all the length bits from another value.
-   */
-
-  var LENGTH_TABLE = [128, 64, 32, 16, 8, 4, 2, 1];
-  var getLength = function getLength(byte) {
-    var len = 1;
-    for (var i = 0; i < LENGTH_TABLE.length; i++) {
-      if (byte & LENGTH_TABLE[i]) {
-        break;
-      }
-      len++;
-    }
-    return len;
-  }; // length in ebml is stored in the first 4 to 8 bits
-  // of the first byte. 4 for the id length and 8 for the
-  // data size length. Length is measured by converting the number to binary
-  // then 1 + the number of zeros before a 1 is encountered starting
-  // from the left.
-
-  var getvint = function getvint(bytes, offset, removeLength, signed) {
-    if (removeLength === void 0) {
-      removeLength = true;
-    }
-    if (signed === void 0) {
-      signed = false;
-    }
-    var length = getLength(bytes[offset]);
-    var valueBytes = bytes.subarray(offset, offset + length); // NOTE that we do **not** subarray here because we need to copy these bytes
-    // as they will be modified below to remove the dataSizeLen bits and we do not
-    // want to modify the original data. normally we could just call slice on
-    // uint8array but ie 11 does not support that...
-
-    if (removeLength) {
-      valueBytes = Array.prototype.slice.call(bytes, offset, offset + length);
-      valueBytes[0] ^= LENGTH_TABLE[length - 1];
-    }
-    return {
-      length: length,
-      value: bytesToNumber(valueBytes, {
-        signed: signed
-      }),
-      bytes: valueBytes
-    };
-  };
-  var normalizePath = function normalizePath(path) {
-    if (typeof path === 'string') {
-      return path.match(/.{1,2}/g).map(function (p) {
-        return normalizePath(p);
-      });
-    }
-    if (typeof path === 'number') {
-      return numberToBytes(path);
-    }
-    return path;
-  };
-  var normalizePaths = function normalizePaths(paths) {
-    if (!Array.isArray(paths)) {
-      return [normalizePath(paths)];
-    }
-    return paths.map(function (p) {
-      return normalizePath(p);
-    });
-  };
-  var getInfinityDataSize = function getInfinityDataSize(id, bytes, offset) {
-    if (offset >= bytes.length) {
-      return bytes.length;
-    }
-    var innerid = getvint(bytes, offset, false);
-    if (bytesMatch(id.bytes, innerid.bytes)) {
-      return offset;
-    }
-    var dataHeader = getvint(bytes, offset + innerid.length);
-    return getInfinityDataSize(id, bytes, offset + dataHeader.length + dataHeader.value + innerid.length);
-  };
-  /**
-   * Notes on the EBLM format.
-   *
-   * EBLM uses "vints" tags. Every vint tag contains
-   * two parts
-   *
-   * 1. The length from the first byte. You get this by
-   *    converting the byte to binary and counting the zeros
-   *    before a 1. Then you add 1 to that. Examples
-   *    00011111 = length 4 because there are 3 zeros before a 1.
-   *    00100000 = length 3 because there are 2 zeros before a 1.
-   *    00000011 = length 7 because there are 6 zeros before a 1.
-   *
-   * 2. The bits used for length are removed from the first byte
-   *    Then all the bytes are merged into a value. NOTE: this
-   *    is not the case for id ebml tags as there id includes
-   *    length bits.
-   *
-   */
-
-  var findEbml = function findEbml(bytes, paths) {
-    paths = normalizePaths(paths);
-    bytes = toUint8(bytes);
-    var results = [];
-    if (!paths.length) {
-      return results;
-    }
-    var i = 0;
-    while (i < bytes.length) {
-      var id = getvint(bytes, i, false);
-      var dataHeader = getvint(bytes, i + id.length);
-      var dataStart = i + id.length + dataHeader.length; // dataSize is unknown or this is a live stream
-
-      if (dataHeader.value === 0x7f) {
-        dataHeader.value = getInfinityDataSize(id, bytes, dataStart);
-        if (dataHeader.value !== bytes.length) {
-          dataHeader.value -= dataStart;
-        }
-      }
-      var dataEnd = dataStart + dataHeader.value > bytes.length ? bytes.length : dataStart + dataHeader.value;
-      var data = bytes.subarray(dataStart, dataEnd);
-      if (bytesMatch(paths[0], id.bytes)) {
-        if (paths.length === 1) {
-          // this is the end of the paths and we've found the tag we were
-          // looking for
-          results.push(data);
-        } else {
-          // recursively search for the next tag inside of the data
-          // of this one
-          results = results.concat(findEbml(data, paths.slice(1)));
-        }
-      }
-      var totalLength = id.length + dataHeader.length + data.length; // move past this tag entirely, we are not looking for it
-
-      i += totalLength;
-    }
-    return results;
-  }; // see https://www.matroska.org/technical/basics.html#block-structure
-
-  var NAL_TYPE_ONE = toUint8([0x00, 0x00, 0x00, 0x01]);
-  var NAL_TYPE_TWO = toUint8([0x00, 0x00, 0x01]);
-  var EMULATION_PREVENTION = toUint8([0x00, 0x00, 0x03]);
-  /**
-   * Expunge any "Emulation Prevention" bytes from a "Raw Byte
-   * Sequence Payload"
-   *
-   * @param data {Uint8Array} the bytes of a RBSP from a NAL
-   * unit
-   * @return {Uint8Array} the RBSP without any Emulation
-   * Prevention Bytes
-   */
-
-  var discardEmulationPreventionBytes = function discardEmulationPreventionBytes(bytes) {
-    var positions = [];
-    var i = 1; // Find all `Emulation Prevention Bytes`
-
-    while (i < bytes.length - 2) {
-      if (bytesMatch(bytes.subarray(i, i + 3), EMULATION_PREVENTION)) {
-        positions.push(i + 2);
-        i++;
-      }
-      i++;
-    } // If no Emulation Prevention Bytes were found just return the original
-    // array
-
-    if (positions.length === 0) {
-      return bytes;
-    } // Create a new array to hold the NAL unit data
-
-    var newLength = bytes.length - positions.length;
-    var newData = new Uint8Array(newLength);
-    var sourceIndex = 0;
-    for (i = 0; i < newLength; sourceIndex++, i++) {
-      if (sourceIndex === positions[0]) {
-        // Skip this byte
-        sourceIndex++; // Remove this position index
-
-        positions.shift();
-      }
-      newData[i] = bytes[sourceIndex];
-    }
-    return newData;
-  };
-  var findNal = function findNal(bytes, dataType, types, nalLimit) {
-    if (nalLimit === void 0) {
-      nalLimit = Infinity;
-    }
-    bytes = toUint8(bytes);
-    types = [].concat(types);
-    var i = 0;
-    var nalStart;
-    var nalsFound = 0; // keep searching until:
-    // we reach the end of bytes
-    // we reach the maximum number of nals they want to seach
-    // NOTE: that we disregard nalLimit when we have found the start
-    // of the nal we want so that we can find the end of the nal we want.
-
-    while (i < bytes.length && (nalsFound < nalLimit || nalStart)) {
-      var nalOffset = void 0;
-      if (bytesMatch(bytes.subarray(i), NAL_TYPE_ONE)) {
-        nalOffset = 4;
-      } else if (bytesMatch(bytes.subarray(i), NAL_TYPE_TWO)) {
-        nalOffset = 3;
-      } // we are unsynced,
-      // find the next nal unit
-
-      if (!nalOffset) {
-        i++;
-        continue;
-      }
-      nalsFound++;
-      if (nalStart) {
-        return discardEmulationPreventionBytes(bytes.subarray(nalStart, i));
-      }
-      var nalType = void 0;
-      if (dataType === 'h264') {
-        nalType = bytes[i + nalOffset] & 0x1f;
-      } else if (dataType === 'h265') {
-        nalType = bytes[i + nalOffset] >> 1 & 0x3f;
-      }
-      if (types.indexOf(nalType) !== -1) {
-        nalStart = i + nalOffset;
-      } // nal header is 1 length for h264, and 2 for h265
-
-      i += nalOffset + (dataType === 'h264' ? 1 : 2);
-    }
-    return bytes.subarray(0, 0);
-  };
-  var findH264Nal = function findH264Nal(bytes, type, nalLimit) {
-    return findNal(bytes, 'h264', type, nalLimit);
-  };
-  var findH265Nal = function findH265Nal(bytes, type, nalLimit) {
-    return findNal(bytes, 'h265', type, nalLimit);
-  };
-
-  var CONSTANTS = {
-    // "webm" string literal in hex
-    'webm': toUint8([0x77, 0x65, 0x62, 0x6d]),
-    // "matroska" string literal in hex
-    'matroska': toUint8([0x6d, 0x61, 0x74, 0x72, 0x6f, 0x73, 0x6b, 0x61]),
-    // "fLaC" string literal in hex
-    'flac': toUint8([0x66, 0x4c, 0x61, 0x43]),
-    // "OggS" string literal in hex
-    'ogg': toUint8([0x4f, 0x67, 0x67, 0x53]),
-    // ac-3 sync byte, also works for ec-3 as that is simply a codec
-    // of ac-3
-    'ac3': toUint8([0x0b, 0x77]),
-    // "RIFF" string literal in hex used for wav and avi
-    'riff': toUint8([0x52, 0x49, 0x46, 0x46]),
-    // "AVI" string literal in hex
-    'avi': toUint8([0x41, 0x56, 0x49]),
-    // "WAVE" string literal in hex
-    'wav': toUint8([0x57, 0x41, 0x56, 0x45]),
-    // "ftyp3g" string literal in hex
-    '3gp': toUint8([0x66, 0x74, 0x79, 0x70, 0x33, 0x67]),
-    // "ftyp" string literal in hex
-    'mp4': toUint8([0x66, 0x74, 0x79, 0x70]),
-    // "styp" string literal in hex
-    'fmp4': toUint8([0x73, 0x74, 0x79, 0x70]),
-    // "ftypqt" string literal in hex
-    'mov': toUint8([0x66, 0x74, 0x79, 0x70, 0x71, 0x74]),
-    // moov string literal in hex
-    'moov': toUint8([0x6D, 0x6F, 0x6F, 0x76]),
-    // moof string literal in hex
-    'moof': toUint8([0x6D, 0x6F, 0x6F, 0x66])
-  };
-  var _isLikely = {
-    aac: function aac(bytes) {
-      var offset = getId3Offset(bytes);
-      return bytesMatch(bytes, [0xFF, 0x10], {
-        offset: offset,
-        mask: [0xFF, 0x16]
-      });
-    },
-    mp3: function mp3(bytes) {
-      var offset = getId3Offset(bytes);
-      return bytesMatch(bytes, [0xFF, 0x02], {
-        offset: offset,
-        mask: [0xFF, 0x06]
-      });
-    },
-    webm: function webm(bytes) {
-      var docType = findEbml(bytes, [EBML_TAGS.EBML, EBML_TAGS.DocType])[0]; // check if DocType EBML tag is webm
-
-      return bytesMatch(docType, CONSTANTS.webm);
-    },
-    mkv: function mkv(bytes) {
-      var docType = findEbml(bytes, [EBML_TAGS.EBML, EBML_TAGS.DocType])[0]; // check if DocType EBML tag is matroska
-
-      return bytesMatch(docType, CONSTANTS.matroska);
-    },
-    mp4: function mp4(bytes) {
-      // if this file is another base media file format, it is not mp4
-      if (_isLikely['3gp'](bytes) || _isLikely.mov(bytes)) {
-        return false;
-      } // if this file starts with a ftyp or styp box its mp4
-
-      if (bytesMatch(bytes, CONSTANTS.mp4, {
-        offset: 4
-      }) || bytesMatch(bytes, CONSTANTS.fmp4, {
-        offset: 4
-      })) {
-        return true;
-      } // if this file starts with a moof/moov box its mp4
-
-      if (bytesMatch(bytes, CONSTANTS.moof, {
-        offset: 4
-      }) || bytesMatch(bytes, CONSTANTS.moov, {
-        offset: 4
-      })) {
-        return true;
-      }
-    },
-    mov: function mov(bytes) {
-      return bytesMatch(bytes, CONSTANTS.mov, {
-        offset: 4
-      });
-    },
-    '3gp': function gp(bytes) {
-      return bytesMatch(bytes, CONSTANTS['3gp'], {
-        offset: 4
-      });
-    },
-    ac3: function ac3(bytes) {
-      var offset = getId3Offset(bytes);
-      return bytesMatch(bytes, CONSTANTS.ac3, {
-        offset: offset
-      });
-    },
-    ts: function ts(bytes) {
-      if (bytes.length < 189 && bytes.length >= 1) {
-        return bytes[0] === 0x47;
-      }
-      var i = 0; // check the first 376 bytes for two matching sync bytes
-
-      while (i + 188 < bytes.length && i < 188) {
-        if (bytes[i] === 0x47 && bytes[i + 188] === 0x47) {
-          return true;
-        }
-        i += 1;
-      }
-      return false;
-    },
-    flac: function flac(bytes) {
-      var offset = getId3Offset(bytes);
-      return bytesMatch(bytes, CONSTANTS.flac, {
-        offset: offset
-      });
-    },
-    ogg: function ogg(bytes) {
-      return bytesMatch(bytes, CONSTANTS.ogg);
-    },
-    avi: function avi(bytes) {
-      return bytesMatch(bytes, CONSTANTS.riff) && bytesMatch(bytes, CONSTANTS.avi, {
-        offset: 8
-      });
-    },
-    wav: function wav(bytes) {
-      return bytesMatch(bytes, CONSTANTS.riff) && bytesMatch(bytes, CONSTANTS.wav, {
-        offset: 8
-      });
-    },
-    'h264': function h264(bytes) {
-      // find seq_parameter_set_rbsp
-      return findH264Nal(bytes, 7, 3).length;
-    },
-    'h265': function h265(bytes) {
-      // find video_parameter_set_rbsp or seq_parameter_set_rbsp
-      return findH265Nal(bytes, [32, 33], 3).length;
-    }
-  }; // get all the isLikely functions
-  // but make sure 'ts' is above h264 and h265
-  // but below everything else as it is the least specific
-
-  var isLikelyTypes = Object.keys(_isLikely) // remove ts, h264, h265
-  .filter(function (t) {
-    return t !== 'ts' && t !== 'h264' && t !== 'h265';
-  }) // add it back to the bottom
-  .concat(['ts', 'h264', 'h265']); // make sure we are dealing with uint8 data.
-
-  isLikelyTypes.forEach(function (type) {
-    var isLikelyFn = _isLikely[type];
-    _isLikely[type] = function (bytes) {
-      return isLikelyFn(toUint8(bytes));
-    };
-  }); // export after wrapping
-
-  var isLikely = _isLikely; // A useful list of file signatures can be found here
-  // https://en.wikipedia.org/wiki/List_of_file_signatures
-
-  var detectContainerForBytes = function detectContainerForBytes(bytes) {
-    bytes = toUint8(bytes);
-    for (var i = 0; i < isLikelyTypes.length; i++) {
-      var type = isLikelyTypes[i];
-      if (isLikely[type](bytes)) {
-        return type;
-      }
-    }
-    return '';
-  }; // fmp4 is not a container
-
-  var isLikelyFmp4MediaSegment = function isLikelyFmp4MediaSegment(bytes) {
-    return findBox(bytes, ['moof']).length > 0;
-  };
-
-  /**
-   * mux.js
-   *
-   * Copyright (c) Brightcove
-   * Licensed Apache-2.0 https://github.com/videojs/mux.js/blob/master/LICENSE
-   */
-  var ONE_SECOND_IN_TS = 90000,
-    // 90kHz clock
-    secondsToVideoTs,
-    secondsToAudioTs,
-    videoTsToSeconds,
-    audioTsToSeconds,
-    audioTsToVideoTs,
-    videoTsToAudioTs,
-    metadataTsToSeconds;
-  secondsToVideoTs = function (seconds) {
-    return seconds * ONE_SECOND_IN_TS;
-  };
-  secondsToAudioTs = function (seconds, sampleRate) {
-    return seconds * sampleRate;
-  };
-  videoTsToSeconds = function (timestamp) {
-    return timestamp / ONE_SECOND_IN_TS;
-  };
-  audioTsToSeconds = function (timestamp, sampleRate) {
-    return timestamp / sampleRate;
-  };
-  audioTsToVideoTs = function (timestamp, sampleRate) {
-    return secondsToVideoTs(audioTsToSeconds(timestamp, sampleRate));
-  };
-  videoTsToAudioTs = function (timestamp, sampleRate) {
-    return secondsToAudioTs(videoTsToSeconds(timestamp), sampleRate);
-  };
-
-  /**
-   * Adjust ID3 tag or caption timing information by the timeline pts values
-   * (if keepOriginalTimestamps is false) and convert to seconds
-   */
-  metadataTsToSeconds = function (timestamp, timelineStartPts, keepOriginalTimestamps) {
-    return videoTsToSeconds(keepOriginalTimestamps ? timestamp : timestamp - timelineStartPts);
-  };
-  var clock = {
-    ONE_SECOND_IN_TS: ONE_SECOND_IN_TS,
-    secondsToVideoTs: secondsToVideoTs,
-    secondsToAudioTs: secondsToAudioTs,
-    videoTsToSeconds: videoTsToSeconds,
-    audioTsToSeconds: audioTsToSeconds,
-    audioTsToVideoTs: audioTsToVideoTs,
-    videoTsToAudioTs: videoTsToAudioTs,
-    metadataTsToSeconds: metadataTsToSeconds
-  };
-  var clock_1 = clock.ONE_SECOND_IN_TS;
-
-  /*! @name @videojs/http-streaming @version 3.12.1 @license Apache-2.0 */
-
-  /**
-   * @file resolve-url.js - Handling how URLs are resolved and manipulated
-   */
-  const resolveUrl = resolveUrl$1;
-  /**
-   * If the xhr request was redirected, return the responseURL, otherwise,
-   * return the original url.
-   *
-   * @api private
-   *
-   * @param  {string} url - an url being requested
-   * @param  {XMLHttpRequest} req - xhr request result
-   *
-   * @return {string}
-   */
-
-  const resolveManifestRedirect = (url, req) => {
-    // To understand how the responseURL below is set and generated:
-    // - https://fetch.spec.whatwg.org/#concept-response-url
-    // - https://fetch.spec.whatwg.org/#atomic-http-redirect-handling
-    if (req && req.responseURL && url !== req.responseURL) {
-      return req.responseURL;
-    }
-    return url;
-  };
-  const logger = source => {
-    if (videojs.log.debug) {
-      return videojs.log.debug.bind(videojs, 'VHS:', `${source} >`);
-    }
-    return function () {};
-  };
-
-  /**
-   * Provides a compatibility layer between Video.js 7 and 8 API changes for VHS.
-   */
-  /**
-   * Delegates to videojs.obj.merge (Video.js 8) or
-   * videojs.mergeOptions (Video.js 7).
-   */
-
-  function merge(...args) {
-    const context = videojs.obj || videojs;
-    const fn = context.merge || context.mergeOptions;
-    return fn.apply(context, args);
-  }
-  /**
-   * Delegates to videojs.time.createTimeRanges (Video.js 8) or
-   * videojs.createTimeRanges (Video.js 7).
-   */
-
-  function createTimeRanges(...args) {
-    const context = videojs.time || videojs;
-    const fn = context.createTimeRanges || context.createTimeRanges;
-    return fn.apply(context, args);
-  }
-  /**
-   * Converts provided buffered ranges to a descriptive string
-   *
-   * @param {TimeRanges} buffered - received buffered time ranges
-   *
-   * @return {string} - descriptive string
-   */
-
-  function bufferedRangesToString(buffered) {
-    if (buffered.length === 0) {
-      return 'Buffered Ranges are empty';
-    }
-    let bufferedRangesStr = 'Buffered Ranges: \n';
-    for (let i = 0; i < buffered.length; i++) {
-      const start = buffered.start(i);
-      const end = buffered.end(i);
-      bufferedRangesStr += `${start} --> ${end}. Duration (${end - start})\n`;
-    }
-    return bufferedRangesStr;
-  }
-
-  /**
-   * ranges
-   *
-   * Utilities for working with TimeRanges.
-   *
-   */
-
-  const TIME_FUDGE_FACTOR = 1 / 30; // Comparisons between time values such as current time and the end of the buffered range
-  // can be misleading because of precision differences or when the current media has poorly
-  // aligned audio and video, which can cause values to be slightly off from what you would
-  // expect. This value is what we consider to be safe to use in such comparisons to account
-  // for these scenarios.
-
-  const SAFE_TIME_DELTA = TIME_FUDGE_FACTOR * 3;
-  const filterRanges = function (timeRanges, predicate) {
-    const results = [];
-    let i;
-    if (timeRanges && timeRanges.length) {
-      // Search for ranges that match the predicate
-      for (i = 0; i < timeRanges.length; i++) {
-        if (predicate(timeRanges.start(i), timeRanges.end(i))) {
-          results.push([timeRanges.start(i), timeRanges.end(i)]);
-        }
-      }
-    }
-    return createTimeRanges(results);
-  };
-  /**
-   * Attempts to find the buffered TimeRange that contains the specified
-   * time.
-   *
-   * @param {TimeRanges} buffered - the TimeRanges object to query
-   * @param {number} time  - the time to filter on.
-   * @return {TimeRanges} a new TimeRanges object
-   */
-
-  const findRange = function (buffered, time) {
-    return filterRanges(buffered, function (start, end) {
-      return start - SAFE_TIME_DELTA <= time && end + SAFE_TIME_DELTA >= time;
-    });
-  };
-  /**
-   * Returns the TimeRanges that begin later than the specified time.
-   *
-   * @param {TimeRanges} timeRanges - the TimeRanges object to query
-   * @param {number} time - the time to filter on.
-   * @return {TimeRanges} a new TimeRanges object.
-   */
-
-  const findNextRange = function (timeRanges, time) {
-    return filterRanges(timeRanges, function (start) {
-      return start - TIME_FUDGE_FACTOR >= time;
-    });
-  };
-  /**
-   * Returns gaps within a list of TimeRanges
-   *
-   * @param {TimeRanges} buffered - the TimeRanges object
-   * @return {TimeRanges} a TimeRanges object of gaps
-   */
-
-  const findGaps = function (buffered) {
-    if (buffered.length < 2) {
-      return createTimeRanges();
-    }
-    const ranges = [];
-    for (let i = 1; i < buffered.length; i++) {
-      const start = buffered.end(i - 1);
-      const end = buffered.start(i);
-      ranges.push([start, end]);
-    }
-    return createTimeRanges(ranges);
-  };
-  /**
-   * Calculate the intersection of two TimeRanges
-   *
-   * @param {TimeRanges} bufferA
-   * @param {TimeRanges} bufferB
-   * @return {TimeRanges} The interesection of `bufferA` with `bufferB`
-   */
-
-  const bufferIntersection = function (bufferA, bufferB) {
-    let start = null;
-    let end = null;
-    let arity = 0;
-    const extents = [];
-    const ranges = [];
-    if (!bufferA || !bufferA.length || !bufferB || !bufferB.length) {
-      return createTimeRanges();
-    } // Handle the case where we have both buffers and create an
-    // intersection of the two
-
-    let count = bufferA.length; // A) Gather up all start and end times
-
-    while (count--) {
-      extents.push({
-        time: bufferA.start(count),
-        type: 'start'
-      });
-      extents.push({
-        time: bufferA.end(count),
-        type: 'end'
-      });
-    }
-    count = bufferB.length;
-    while (count--) {
-      extents.push({
-        time: bufferB.start(count),
-        type: 'start'
-      });
-      extents.push({
-        time: bufferB.end(count),
-        type: 'end'
-      });
-    } // B) Sort them by time
-
-    extents.sort(function (a, b) {
-      return a.time - b.time;
-    }); // C) Go along one by one incrementing arity for start and decrementing
-    //    arity for ends
-
-    for (count = 0; count < extents.length; count++) {
-      if (extents[count].type === 'start') {
-        arity++; // D) If arity is ever incremented to 2 we are entering an
-        //    overlapping range
-
-        if (arity === 2) {
-          start = extents[count].time;
-        }
-      } else if (extents[count].type === 'end') {
-        arity--; // E) If arity is ever decremented to 1 we leaving an
-        //    overlapping range
-
-        if (arity === 1) {
-          end = extents[count].time;
-        }
-      } // F) Record overlapping ranges
-
-      if (start !== null && end !== null) {
-        ranges.push([start, end]);
-        start = null;
-        end = null;
-      }
-    }
-    return createTimeRanges(ranges);
-  };
-  /**
-   * Gets a human readable string for a TimeRange
-   *
-   * @param {TimeRange} range
-   * @return {string} a human readable string
-   */
-
-  const printableRange = range => {
-    const strArr = [];
-    if (!range || !range.length) {
-      return '';
-    }
-    for (let i = 0; i < range.length; i++) {
-      strArr.push(range.start(i) + ' => ' + range.end(i));
-    }
-    return strArr.join(', ');
-  };
-  /**
-   * Calculates the amount of time left in seconds until the player hits the end of the
-   * buffer and causes a rebuffer
-   *
-   * @param {TimeRange} buffered
-   *        The state of the buffer
-   * @param {Numnber} currentTime
-   *        The current time of the player
-   * @param {number} playbackRate
-   *        The current playback rate of the player. Defaults to 1.
-   * @return {number}
-   *         Time until the player has to start rebuffering in seconds.
-   * @function timeUntilRebuffer
-   */
-
-  const timeUntilRebuffer = function (buffered, currentTime, playbackRate = 1) {
-    const bufferedEnd = buffered.length ? buffered.end(buffered.length - 1) : 0;
-    return (bufferedEnd - currentTime) / playbackRate;
-  };
-  /**
-   * Converts a TimeRanges object into an array representation
-   *
-   * @param {TimeRanges} timeRanges
-   * @return {Array}
-   */
-
-  const timeRangesToArray = timeRanges => {
-    const timeRangesList = [];
-    for (let i = 0; i < timeRanges.length; i++) {
-      timeRangesList.push({
-        start: timeRanges.start(i),
-        end: timeRanges.end(i)
-      });
-    }
-    return timeRangesList;
-  };
-  /**
-   * Determines if two time range objects are different.
-   *
-   * @param {TimeRange} a
-   *        the first time range object to check
-   *
-   * @param {TimeRange} b
-   *        the second time range object to check
-   *
-   * @return {Boolean}
-   *         Whether the time range objects differ
-   */
-
-  const isRangeDifferent = function (a, b) {
-    // same object
-    if (a === b) {
-      return false;
-    } // one or the other is undefined
-
-    if (!a && b || !b && a) {
-      return true;
-    } // length is different
-
-    if (a.length !== b.length) {
-      return true;
-    } // see if any start/end pair is different
-
-    for (let i = 0; i < a.length; i++) {
-      if (a.start(i) !== b.start(i) || a.end(i) !== b.end(i)) {
-        return true;
-      }
-    } // if the length and every pair is the same
-    // this is the same time range
-
-    return false;
-  };
-  const lastBufferedEnd = function (a) {
-    if (!a || !a.length || !a.end) {
-      return;
-    }
-    return a.end(a.length - 1);
-  };
-  /**
-   * A utility function to add up the amount of time in a timeRange
-   * after a specified startTime.
-   * ie:[[0, 10], [20, 40], [50, 60]] with a startTime 0
-   *     would return 40 as there are 40s seconds after 0 in the timeRange
-   *
-   * @param {TimeRange} range
-   *        The range to check against
-   * @param {number} startTime
-   *        The time in the time range that you should start counting from
-   *
-   * @return {number}
-   *          The number of seconds in the buffer passed the specified time.
-   */
-
-  const timeAheadOf = function (range, startTime) {
-    let time = 0;
-    if (!range || !range.length) {
-      return time;
-    }
-    for (let i = 0; i < range.length; i++) {
-      const start = range.start(i);
-      const end = range.end(i); // startTime is after this range entirely
-
-      if (startTime > end) {
-        continue;
-      } // startTime is within this range
-
-      if (startTime > start && startTime <= end) {
-        time += end - startTime;
-        continue;
-      } // startTime is before this range.
-
-      time += end - start;
-    }
-    return time;
-  };
-
-  /**
-   * @file playlist.js
-   *
-   * Playlist related utilities.
-   */
-  /**
-   * Get the duration of a segment, with special cases for
-   * llhls segments that do not have a duration yet.
-   *
-   * @param {Object} playlist
-   *        the playlist that the segment belongs to.
-   * @param {Object} segment
-   *        the segment to get a duration for.
-   *
-   * @return {number}
-   *          the segment duration
-   */
-
-  const segmentDurationWithParts = (playlist, segment) => {
-    // if this isn't a preload segment
-    // then we will have a segment duration that is accurate.
-    if (!segment.preload) {
-      return segment.duration;
-    } // otherwise we have to add up parts and preload hints
-    // to get an up to date duration.
-
-    let result = 0;
-    (segment.parts || []).forEach(function (p) {
-      result += p.duration;
-    }); // for preload hints we have to use partTargetDuration
-    // as they won't even have a duration yet.
-
-    (segment.preloadHints || []).forEach(function (p) {
-      if (p.type === 'PART') {
-        result += playlist.partTargetDuration;
-      }
-    });
-    return result;
-  };
-  /**
-   * A function to get a combined list of parts and segments with durations
-   * and indexes.
-   *
-   * @param {Playlist} playlist the playlist to get the list for.
-   *
-   * @return {Array} The part/segment list.
-   */
-
-  const getPartsAndSegments = playlist => (playlist.segments || []).reduce((acc, segment, si) => {
-    if (segment.parts) {
-      segment.parts.forEach(function (part, pi) {
-        acc.push({
-          duration: part.duration,
-          segmentIndex: si,
-          partIndex: pi,
-          part,
-          segment
-        });
-      });
-    } else {
-      acc.push({
-        duration: segment.duration,
-        segmentIndex: si,
-        partIndex: null,
-        segment,
-        part: null
-      });
-    }
-    return acc;
-  }, []);
-  const getLastParts = media => {
-    const lastSegment = media.segments && media.segments.length && media.segments[media.segments.length - 1];
-    return lastSegment && lastSegment.parts || [];
-  };
-  const getKnownPartCount = ({
-    preloadSegment
-  }) => {
-    if (!preloadSegment) {
-      return;
-    }
-    const {
-      parts,
-      preloadHints
-    } = preloadSegment;
-    let partCount = (preloadHints || []).reduce((count, hint) => count + (hint.type === 'PART' ? 1 : 0), 0);
-    partCount += parts && parts.length ? parts.length : 0;
-    return partCount;
-  };
-  /**
-   * Get the number of seconds to delay from the end of a
-   * live playlist.
-   *
-   * @param {Playlist} main the main playlist
-   * @param {Playlist} media the media playlist
-   * @return {number} the hold back in seconds.
-   */
-
-  const liveEdgeDelay = (main, media) => {
-    if (media.endList) {
-      return 0;
-    } // dash suggestedPresentationDelay trumps everything
-
-    if (main && main.suggestedPresentationDelay) {
-      return main.suggestedPresentationDelay;
-    }
-    const hasParts = getLastParts(media).length > 0; // look for "part" delays from ll-hls first
-
-    if (hasParts && media.serverControl && media.serverControl.partHoldBack) {
-      return media.serverControl.partHoldBack;
-    } else if (hasParts && media.partTargetDuration) {
-      return media.partTargetDuration * 3; // finally look for full segment delays
-    } else if (media.serverControl && media.serverControl.holdBack) {
-      return media.serverControl.holdBack;
-    } else if (media.targetDuration) {
-      return media.targetDuration * 3;
-    }
-    return 0;
-  };
-  /**
-   * walk backward until we find a duration we can use
-   * or return a failure
-   *
-   * @param {Playlist} playlist the playlist to walk through
-   * @param {Number} endSequence the mediaSequence to stop walking on
-   */
-
-  const backwardDuration = function (playlist, endSequence) {
-    let result = 0;
-    let i = endSequence - playlist.mediaSequence; // if a start time is available for segment immediately following
-    // the interval, use it
-
-    let segment = playlist.segments[i]; // Walk backward until we find the latest segment with timeline
-    // information that is earlier than endSequence
-
-    if (segment) {
-      if (typeof segment.start !== 'undefined') {
-        return {
-          result: segment.start,
-          precise: true
-        };
-      }
-      if (typeof segment.end !== 'undefined') {
-        return {
-          result: segment.end - segment.duration,
-          precise: true
-        };
-      }
-    }
-    while (i--) {
-      segment = playlist.segments[i];
-      if (typeof segment.end !== 'undefined') {
-        return {
-          result: result + segment.end,
-          precise: true
-        };
-      }
-      result += segmentDurationWithParts(playlist, segment);
-      if (typeof segment.start !== 'undefined') {
-        return {
-          result: result + segment.start,
-          precise: true
-        };
-      }
-    }
-    return {
-      result,
-      precise: false
-    };
-  };
-  /**
-   * walk forward until we find a duration we can use
-   * or return a failure
-   *
-   * @param {Playlist} playlist the playlist to walk through
-   * @param {number} endSequence the mediaSequence to stop walking on
-   */
-
-  const forwardDuration = function (playlist, endSequence) {
-    let result = 0;
-    let segment;
-    let i = endSequence - playlist.mediaSequence; // Walk forward until we find the earliest segment with timeline
-    // information
-
-    for (; i < playlist.segments.length; i++) {
-      segment = playlist.segments[i];
-      if (typeof segment.start !== 'undefined') {
-        return {
-          result: segment.start - result,
-          precise: true
-        };
-      }
-      result += segmentDurationWithParts(playlist, segment);
-      if (typeof segment.end !== 'undefined') {
-        return {
-          result: segment.end - result,
-          precise: true
-        };
-      }
-    } // indicate we didn't find a useful duration estimate
-
-    return {
-      result: -1,
-      precise: false
-    };
-  };
-  /**
-    * Calculate the media duration from the segments associated with a
-    * playlist. The duration of a subinterval of the available segments
-    * may be calculated by specifying an end index.
-    *
-    * @param {Object} playlist a media playlist object
-    * @param {number=} endSequence an exclusive upper boundary
-    * for the playlist.  Defaults to playlist length.
-    * @param {number} expired the amount of time that has dropped
-    * off the front of the playlist in a live scenario
-    * @return {number} the duration between the first available segment
-    * and end index.
-    */
-
-  const intervalDuration = function (playlist, endSequence, expired) {
-    if (typeof endSequence === 'undefined') {
-      endSequence = playlist.mediaSequence + playlist.segments.length;
-    }
-    if (endSequence < playlist.mediaSequence) {
-      return 0;
-    } // do a backward walk to estimate the duration
-
-    const backward = backwardDuration(playlist, endSequence);
-    if (backward.precise) {
-      // if we were able to base our duration estimate on timing
-      // information provided directly from the Media Source, return
-      // it
-      return backward.result;
-    } // walk forward to see if a precise duration estimate can be made
-    // that way
-
-    const forward = forwardDuration(playlist, endSequence);
-    if (forward.precise) {
-      // we found a segment that has been buffered and so it's
-      // position is known precisely
-      return forward.result;
-    } // return the less-precise, playlist-based duration estimate
-
-    return backward.result + expired;
-  };
-  /**
-    * Calculates the duration of a playlist. If a start and end index
-    * are specified, the duration will be for the subset of the media
-    * timeline between those two indices. The total duration for live
-    * playlists is always Infinity.
-    *
-    * @param {Object} playlist a media playlist object
-    * @param {number=} endSequence an exclusive upper
-    * boundary for the playlist. Defaults to the playlist media
-    * sequence number plus its length.
-    * @param {number=} expired the amount of time that has
-    * dropped off the front of the playlist in a live scenario
-    * @return {number} the duration between the start index and end
-    * index.
-    */
-
-  const duration = function (playlist, endSequence, expired) {
-    if (!playlist) {
-      return 0;
-    }
-    if (typeof expired !== 'number') {
-      expired = 0;
-    } // if a slice of the total duration is not requested, use
-    // playlist-level duration indicators when they're present
-
-    if (typeof endSequence === 'undefined') {
-      // if present, use the duration specified in the playlist
-      if (playlist.totalDuration) {
-        return playlist.totalDuration;
-      } // duration should be Infinity for live playlists
-
-      if (!playlist.endList) {
-        return window.Infinity;
-      }
-    } // calculate the total duration based on the segment durations
-
-    return intervalDuration(playlist, endSequence, expired);
-  };
-  /**
-    * Calculate the time between two indexes in the current playlist
-    * neight the start- nor the end-index need to be within the current
-    * playlist in which case, the targetDuration of the playlist is used
-    * to approximate the durations of the segments
-    *
-    * @param {Array} options.durationList list to iterate over for durations.
-    * @param {number} options.defaultDuration duration to use for elements before or after the durationList
-    * @param {number} options.startIndex partsAndSegments index to start
-    * @param {number} options.endIndex partsAndSegments index to end.
-    * @return {number} the number of seconds between startIndex and endIndex
-    */
-
-  const sumDurations = function ({
-    defaultDuration,
-    durationList,
-    startIndex,
-    endIndex
-  }) {
-    let durations = 0;
-    if (startIndex > endIndex) {
-      [startIndex, endIndex] = [endIndex, startIndex];
-    }
-    if (startIndex < 0) {
-      for (let i = startIndex; i < Math.min(0, endIndex); i++) {
-        durations += defaultDuration;
-      }
-      startIndex = 0;
-    }
-    for (let i = startIndex; i < endIndex; i++) {
-      durations += durationList[i].duration;
-    }
-    return durations;
-  };
-  /**
-   * Calculates the playlist end time
-   *
-   * @param {Object} playlist a media playlist object
-   * @param {number=} expired the amount of time that has
-   *                  dropped off the front of the playlist in a live scenario
-   * @param {boolean|false} useSafeLiveEnd a boolean value indicating whether or not the
-   *                        playlist end calculation should consider the safe live end
-   *                        (truncate the playlist end by three segments). This is normally
-   *                        used for calculating the end of the playlist's seekable range.
-   *                        This takes into account the value of liveEdgePadding.
-   *                        Setting liveEdgePadding to 0 is equivalent to setting this to false.
-   * @param {number} liveEdgePadding a number indicating how far from the end of the playlist we should be in seconds.
-   *                 If this is provided, it is used in the safe live end calculation.
-   *                 Setting useSafeLiveEnd=false or liveEdgePadding=0 are equivalent.
-   *                 Corresponds to suggestedPresentationDelay in DASH manifests.
-   * @return {number} the end time of playlist
-   * @function playlistEnd
-   */
-
-  const playlistEnd = function (playlist, expired, useSafeLiveEnd, liveEdgePadding) {
-    if (!playlist || !playlist.segments) {
-      return null;
-    }
-    if (playlist.endList) {
-      return duration(playlist);
-    }
-    if (expired === null) {
-      return null;
-    }
-    expired = expired || 0;
-    let lastSegmentEndTime = intervalDuration(playlist, playlist.mediaSequence + playlist.segments.length, expired);
-    if (useSafeLiveEnd) {
-      liveEdgePadding = typeof liveEdgePadding === 'number' ? liveEdgePadding : liveEdgeDelay(null, playlist);
-      lastSegmentEndTime -= liveEdgePadding;
-    } // don't return a time less than zero
-
-    return Math.max(0, lastSegmentEndTime);
-  };
-  /**
-    * Calculates the interval of time that is currently seekable in a
-    * playlist. The returned time ranges are relative to the earliest
-    * moment in the specified playlist that is still available. A full
-    * seekable implementation for live streams would need to offset
-    * these values by the duration of content that has expired from the
-    * stream.
-    *
-    * @param {Object} playlist a media playlist object
-    * dropped off the front of the playlist in a live scenario
-    * @param {number=} expired the amount of time that has
-    * dropped off the front of the playlist in a live scenario
-    * @param {number} liveEdgePadding how far from the end of the playlist we should be in seconds.
-    *        Corresponds to suggestedPresentationDelay in DASH manifests.
-    * @return {TimeRanges} the periods of time that are valid targets
-    * for seeking
-    */
-
-  const seekable = function (playlist, expired, liveEdgePadding) {
-    const useSafeLiveEnd = true;
-    const seekableStart = expired || 0;
-    let seekableEnd = playlistEnd(playlist, expired, useSafeLiveEnd, liveEdgePadding);
-    if (seekableEnd === null) {
-      return createTimeRanges();
-    } // Clamp seekable end since it can not be less than the seekable start
-
-    if (seekableEnd < seekableStart) {
-      seekableEnd = seekableStart;
-    }
-    return createTimeRanges(seekableStart, seekableEnd);
-  };
-  /**
-   * Determine the index and estimated starting time of the segment that
-   * contains a specified playback position in a media playlist.
-   *
-   * @param {Object} options.playlist the media playlist to query
-   * @param {number} options.currentTime The number of seconds since the earliest
-   * possible position to determine the containing segment for
-   * @param {number} options.startTime the time when the segment/part starts
-   * @param {number} options.startingSegmentIndex the segment index to start looking at.
-   * @param {number?} [options.startingPartIndex] the part index to look at within the segment.
-   *
-   * @return {Object} an object with partIndex, segmentIndex, and startTime.
-   */
-
-  const getMediaInfoForTime = function ({
-    playlist,
-    currentTime,
-    startingSegmentIndex,
-    startingPartIndex,
-    startTime,
-    exactManifestTimings
-  }) {
-    let time = currentTime - startTime;
-    const partsAndSegments = getPartsAndSegments(playlist);
-    let startIndex = 0;
-    for (let i = 0; i < partsAndSegments.length; i++) {
-      const partAndSegment = partsAndSegments[i];
-      if (startingSegmentIndex !== partAndSegment.segmentIndex) {
-        continue;
-      } // skip this if part index does not match.
-
-      if (typeof startingPartIndex === 'number' && typeof partAndSegment.partIndex === 'number' && startingPartIndex !== partAndSegment.partIndex) {
-        continue;
-      }
-      startIndex = i;
-      break;
-    }
-    if (time < 0) {
-      // Walk backward from startIndex in the playlist, adding durations
-      // until we find a segment that contains `time` and return it
-      if (startIndex > 0) {
-        for (let i = startIndex - 1; i >= 0; i--) {
-          const partAndSegment = partsAndSegments[i];
-          time += partAndSegment.duration;
-          if (exactManifestTimings) {
-            if (time < 0) {
-              continue;
-            }
-          } else if (time + TIME_FUDGE_FACTOR <= 0) {
-            continue;
-          }
-          return {
-            partIndex: partAndSegment.partIndex,
-            segmentIndex: partAndSegment.segmentIndex,
-            startTime: startTime - sumDurations({
-              defaultDuration: playlist.targetDuration,
-              durationList: partsAndSegments,
-              startIndex,
-              endIndex: i
-            })
-          };
-        }
-      } // We were unable to find a good segment within the playlist
-      // so select the first segment
-
-      return {
-        partIndex: partsAndSegments[0] && partsAndSegments[0].partIndex || null,
-        segmentIndex: partsAndSegments[0] && partsAndSegments[0].segmentIndex || 0,
-        startTime: currentTime
-      };
-    } // When startIndex is negative, we first walk forward to first segment
-    // adding target durations. If we "run out of time" before getting to
-    // the first segment, return the first segment
-
-    if (startIndex < 0) {
-      for (let i = startIndex; i < 0; i++) {
-        time -= playlist.targetDuration;
-        if (time < 0) {
-          return {
-            partIndex: partsAndSegments[0] && partsAndSegments[0].partIndex || null,
-            segmentIndex: partsAndSegments[0] && partsAndSegments[0].segmentIndex || 0,
-            startTime: currentTime
-          };
-        }
-      }
-      startIndex = 0;
-    } // Walk forward from startIndex in the playlist, subtracting durations
-    // until we find a segment that contains `time` and return it
-
-    for (let i = startIndex; i < partsAndSegments.length; i++) {
-      const partAndSegment = partsAndSegments[i];
-      time -= partAndSegment.duration;
-      const canUseFudgeFactor = partAndSegment.duration > TIME_FUDGE_FACTOR;
-      const isExactlyAtTheEnd = time === 0;
-      const isExtremelyCloseToTheEnd = canUseFudgeFactor && time + TIME_FUDGE_FACTOR >= 0;
-      if (isExactlyAtTheEnd || isExtremelyCloseToTheEnd) {
-        // 1) We are exactly at the end of the current segment.
-        // 2) We are extremely close to the end of the current segment (The difference is less than  1 / 30).
-        //    We may encounter this situation when
-        //    we don't have exact match between segment duration info in the manifest and the actual duration of the segment
-        //    For example:
-        //    We appended 3 segments 10 seconds each, meaning we should have 30 sec buffered,
-        //    but we the actual buffered is 29.99999
-        //
-        // In both cases:
-        // if we passed current time -> it means that we already played current segment
-        // if we passed buffered.end -> it means that this segment is already loaded and buffered
-        // we should select the next segment if we have one:
-        if (i !== partsAndSegments.length - 1) {
-          continue;
-        }
-      }
-      if (exactManifestTimings) {
-        if (time > 0) {
-          continue;
-        }
-      } else if (time - TIME_FUDGE_FACTOR >= 0) {
-        continue;
-      }
-      return {
-        partIndex: partAndSegment.partIndex,
-        segmentIndex: partAndSegment.segmentIndex,
-        startTime: startTime + sumDurations({
-          defaultDuration: playlist.targetDuration,
-          durationList: partsAndSegments,
-          startIndex,
-          endIndex: i
-        })
-      };
-    } // We are out of possible candidates so load the last one...
-
-    return {
-      segmentIndex: partsAndSegments[partsAndSegments.length - 1].segmentIndex,
-      partIndex: partsAndSegments[partsAndSegments.length - 1].partIndex,
-      startTime: currentTime
-    };
-  };
-  /**
-   * Check whether the playlist is excluded or not.
-   *
-   * @param {Object} playlist the media playlist object
-   * @return {boolean} whether the playlist is excluded or not
-   * @function isExcluded
-   */
-
-  const isExcluded = function (playlist) {
-    return playlist.excludeUntil && playlist.excludeUntil > Date.now();
-  };
-  /**
-   * Check whether the playlist is compatible with current playback configuration or has
-   * been excluded permanently for being incompatible.
-   *
-   * @param {Object} playlist the media playlist object
-   * @return {boolean} whether the playlist is incompatible or not
-   * @function isIncompatible
-   */
-
-  const isIncompatible = function (playlist) {
-    return playlist.excludeUntil && playlist.excludeUntil === Infinity;
-  };
-  /**
-   * Check whether the playlist is enabled or not.
-   *
-   * @param {Object} playlist the media playlist object
-   * @return {boolean} whether the playlist is enabled or not
-   * @function isEnabled
-   */
-
-  const isEnabled = function (playlist) {
-    const excluded = isExcluded(playlist);
-    return !playlist.disabled && !excluded;
-  };
-  /**
-   * Check whether the playlist has been manually disabled through the representations api.
-   *
-   * @param {Object} playlist the media playlist object
-   * @return {boolean} whether the playlist is disabled manually or not
-   * @function isDisabled
-   */
-
-  const isDisabled = function (playlist) {
-    return playlist.disabled;
-  };
-  /**
-   * Returns whether the current playlist is an AES encrypted HLS stream
-   *
-   * @return {boolean} true if it's an AES encrypted HLS stream
-   */
-
-  const isAes = function (media) {
-    for (let i = 0; i < media.segments.length; i++) {
-      if (media.segments[i].key) {
-        return true;
-      }
-    }
-    return false;
-  };
-  /**
-   * Checks if the playlist has a value for the specified attribute
-   *
-   * @param {string} attr
-   *        Attribute to check for
-   * @param {Object} playlist
-   *        The media playlist object
-   * @return {boolean}
-   *         Whether the playlist contains a value for the attribute or not
-   * @function hasAttribute
-   */
-
-  const hasAttribute = function (attr, playlist) {
-    return playlist.attributes && playlist.attributes[attr];
-  };
-  /**
-   * Estimates the time required to complete a segment download from the specified playlist
-   *
-   * @param {number} segmentDuration
-   *        Duration of requested segment
-   * @param {number} bandwidth
-   *        Current measured bandwidth of the player
-   * @param {Object} playlist
-   *        The media playlist object
-   * @param {number=} bytesReceived
-   *        Number of bytes already received for the request. Defaults to 0
-   * @return {number|NaN}
-   *         The estimated time to request the segment. NaN if bandwidth information for
-   *         the given playlist is unavailable
-   * @function estimateSegmentRequestTime
-   */
-
-  const estimateSegmentRequestTime = function (segmentDuration, bandwidth, playlist, bytesReceived = 0) {
-    if (!hasAttribute('BANDWIDTH', playlist)) {
-      return NaN;
-    }
-    const size = segmentDuration * playlist.attributes.BANDWIDTH;
-    return (size - bytesReceived * 8) / bandwidth;
-  };
-  /*
-   * Returns whether the current playlist is the lowest rendition
-   *
-   * @return {Boolean} true if on lowest rendition
-   */
-
-  const isLowestEnabledRendition = (main, media) => {
-    if (main.playlists.length === 1) {
-      return true;
-    }
-    const currentBandwidth = media.attributes.BANDWIDTH || Number.MAX_VALUE;
-    return main.playlists.filter(playlist => {
-      if (!isEnabled(playlist)) {
-        return false;
-      }
-      return (playlist.attributes.BANDWIDTH || 0) < currentBandwidth;
-    }).length === 0;
-  };
-  const playlistMatch = (a, b) => {
-    // both playlits are null
-    // or only one playlist is non-null
-    // no match
-    if (!a && !b || !a && b || a && !b) {
-      return false;
-    } // playlist objects are the same, match
-
-    if (a === b) {
-      return true;
-    } // first try to use id as it should be the most
-    // accurate
-
-    if (a.id && b.id && a.id === b.id) {
-      return true;
-    } // next try to use reslovedUri as it should be the
-    // second most accurate.
-
-    if (a.resolvedUri && b.resolvedUri && a.resolvedUri === b.resolvedUri) {
-      return true;
-    } // finally try to use uri as it should be accurate
-    // but might miss a few cases for relative uris
-
-    if (a.uri && b.uri && a.uri === b.uri) {
-      return true;
-    }
-    return false;
-  };
-  const someAudioVariant = function (main, callback) {
-    const AUDIO = main && main.mediaGroups && main.mediaGroups.AUDIO || {};
-    let found = false;
-    for (const groupName in AUDIO) {
-      for (const label in AUDIO[groupName]) {
-        found = callback(AUDIO[groupName][label]);
-        if (found) {
-          break;
-        }
-      }
-      if (found) {
-        break;
-      }
-    }
-    return !!found;
-  };
-  const isAudioOnly = main => {
-    // we are audio only if we have no main playlists but do
-    // have media group playlists.
-    if (!main || !main.playlists || !main.playlists.length) {
-      // without audio variants or playlists this
-      // is not an audio only main.
-      const found = someAudioVariant(main, variant => variant.playlists && variant.playlists.length || variant.uri);
-      return found;
-    } // if every playlist has only an audio codec it is audio only
-
-    for (let i = 0; i < main.playlists.length; i++) {
-      const playlist = main.playlists[i];
-      const CODECS = playlist.attributes && playlist.attributes.CODECS; // all codecs are audio, this is an audio playlist.
-
-      if (CODECS && CODECS.split(',').every(c => isAudioCodec(c))) {
-        continue;
-      } // playlist is in an audio group it is audio only
-
-      const found = someAudioVariant(main, variant => playlistMatch(playlist, variant));
-      if (found) {
-        continue;
-      } // if we make it here this playlist isn't audio and we
-      // are not audio only
-
-      return false;
-    } // if we make it past every playlist without returning, then
-    // this is an audio only playlist.
-
-    return true;
-  }; // exports
-
-  var Playlist = {
-    liveEdgeDelay,
-    duration,
-    seekable,
-    getMediaInfoForTime,
-    isEnabled,
-    isDisabled,
-    isExcluded,
-    isIncompatible,
-    playlistEnd,
-    isAes,
-    hasAttribute,
-    estimateSegmentRequestTime,
-    isLowestEnabledRendition,
-    isAudioOnly,
-    playlistMatch,
-    segmentDurationWithParts
-  };
-  const {
-    log
-  } = videojs;
-  const createPlaylistID = (index, uri) => {
-    return `${index}-${uri}`;
-  }; // default function for creating a group id
-
-  const groupID = (type, group, label) => {
-    return `placeholder-uri-${type}-${group}-${label}`;
-  };
-  /**
-   * Parses a given m3u8 playlist
-   *
-   * @param {Function} [onwarn]
-   *        a function to call when the parser triggers a warning event.
-   * @param {Function} [oninfo]
-   *        a function to call when the parser triggers an info event.
-   * @param {string} manifestString
-   *        The downloaded manifest string
-   * @param {Object[]} [customTagParsers]
-   *        An array of custom tag parsers for the m3u8-parser instance
-   * @param {Object[]} [customTagMappers]
-   *        An array of custom tag mappers for the m3u8-parser instance
-   * @param {boolean} [llhls]
-   *        Whether to keep ll-hls features in the manifest after parsing.
-   * @return {Object}
-   *         The manifest object
-   */
-
-  const parseManifest = ({
-    onwarn,
-    oninfo,
-    manifestString,
-    customTagParsers = [],
-    customTagMappers = [],
-    llhls
-  }) => {
-    const parser = new Parser();
-    if (onwarn) {
-      parser.on('warn', onwarn);
-    }
-    if (oninfo) {
-      parser.on('info', oninfo);
-    }
-    customTagParsers.forEach(customParser => parser.addParser(customParser));
-    customTagMappers.forEach(mapper => parser.addTagMapper(mapper));
-    parser.push(manifestString);
-    parser.end();
-    const manifest = parser.manifest; // remove llhls features from the parsed manifest
-    // if we don't want llhls support.
-
-    if (!llhls) {
-      ['preloadSegment', 'skip', 'serverControl', 'renditionReports', 'partInf', 'partTargetDuration'].forEach(function (k) {
-        if (manifest.hasOwnProperty(k)) {
-          delete manifest[k];
-        }
-      });
-      if (manifest.segments) {
-        manifest.segments.forEach(function (segment) {
-          ['parts', 'preloadHints'].forEach(function (k) {
-            if (segment.hasOwnProperty(k)) {
-              delete segment[k];
-            }
-          });
-        });
-      }
-    }
-    if (!manifest.targetDuration) {
-      let targetDuration = 10;
-      if (manifest.segments && manifest.segments.length) {
-        targetDuration = manifest.segments.reduce((acc, s) => Math.max(acc, s.duration), 0);
-      }
-      if (onwarn) {
-        onwarn({
-          message: `manifest has no targetDuration defaulting to ${targetDuration}`
-        });
-      }
-      manifest.targetDuration = targetDuration;
-    }
-    const parts = getLastParts(manifest);
-    if (parts.length && !manifest.partTargetDuration) {
-      const partTargetDuration = parts.reduce((acc, p) => Math.max(acc, p.duration), 0);
-      if (onwarn) {
-        onwarn({
-          message: `manifest has no partTargetDuration defaulting to ${partTargetDuration}`
-        });
-        log.error('LL-HLS manifest has parts but lacks required #EXT-X-PART-INF:PART-TARGET value. See https://datatracker.ietf.org/doc/html/draft-pantos-hls-rfc8216bis-09#section-4.4.3.7. Playback is not guaranteed.');
-      }
-      manifest.partTargetDuration = partTargetDuration;
-    }
-    return manifest;
-  };
-  /**
-   * Loops through all supported media groups in main and calls the provided
-   * callback for each group
-   *
-   * @param {Object} main
-   *        The parsed main manifest object
-   * @param {Function} callback
-   *        Callback to call for each media group
-   */
-
-  const forEachMediaGroup = (main, callback) => {
-    if (!main.mediaGroups) {
-      return;
-    }
-    ['AUDIO', 'SUBTITLES'].forEach(mediaType => {
-      if (!main.mediaGroups[mediaType]) {
-        return;
-      }
-      for (const groupKey in main.mediaGroups[mediaType]) {
-        for (const labelKey in main.mediaGroups[mediaType][groupKey]) {
-          const mediaProperties = main.mediaGroups[mediaType][groupKey][labelKey];
-          callback(mediaProperties, mediaType, groupKey, labelKey);
-        }
-      }
-    });
-  };
-  /**
-   * Adds properties and attributes to the playlist to keep consistent functionality for
-   * playlists throughout VHS.
-   *
-   * @param {Object} config
-   *        Arguments object
-   * @param {Object} config.playlist
-   *        The media playlist
-   * @param {string} [config.uri]
-   *        The uri to the media playlist (if media playlist is not from within a main
-   *        playlist)
-   * @param {string} id
-   *        ID to use for the playlist
-   */
-
-  const setupMediaPlaylist = ({
-    playlist,
-    uri,
-    id
-  }) => {
-    playlist.id = id;
-    playlist.playlistErrors_ = 0;
-    if (uri) {
-      // For media playlists, m3u8-parser does not have access to a URI, as HLS media
-      // playlists do not contain their own source URI, but one is needed for consistency in
-      // VHS.
-      playlist.uri = uri;
-    } // For HLS main playlists, even though certain attributes MUST be defined, the
-    // stream may still be played without them.
-    // For HLS media playlists, m3u8-parser does not attach an attributes object to the
-    // manifest.
-    //
-    // To avoid undefined reference errors through the project, and make the code easier
-    // to write/read, add an empty attributes object for these cases.
-
-    playlist.attributes = playlist.attributes || {};
-  };
-  /**
-   * Adds ID, resolvedUri, and attributes properties to each playlist of the main, where
-   * necessary. In addition, creates playlist IDs for each playlist and adds playlist ID to
-   * playlist references to the playlists array.
-   *
-   * @param {Object} main
-   *        The main playlist
-   */
-
-  const setupMediaPlaylists = main => {
-    let i = main.playlists.length;
-    while (i--) {
-      const playlist = main.playlists[i];
-      setupMediaPlaylist({
-        playlist,
-        id: createPlaylistID(i, playlist.uri)
-      });
-      playlist.resolvedUri = resolveUrl(main.uri, playlist.uri);
-      main.playlists[playlist.id] = playlist; // URI reference added for backwards compatibility
-
-      main.playlists[playlist.uri] = playlist; // Although the spec states an #EXT-X-STREAM-INF tag MUST have a BANDWIDTH attribute,
-      // the stream can be played without it. Although an attributes property may have been
-      // added to the playlist to prevent undefined references, issue a warning to fix the
-      // manifest.
-
-      if (!playlist.attributes.BANDWIDTH) {
-        log.warn('Invalid playlist STREAM-INF detected. Missing BANDWIDTH attribute.');
-      }
-    }
-  };
-  /**
-   * Adds resolvedUri properties to each media group.
-   *
-   * @param {Object} main
-   *        The main playlist
-   */
-
-  const resolveMediaGroupUris = main => {
-    forEachMediaGroup(main, properties => {
-      if (properties.uri) {
-        properties.resolvedUri = resolveUrl(main.uri, properties.uri);
-      }
-    });
-  };
-  /**
-   * Creates a main playlist wrapper to insert a sole media playlist into.
-   *
-   * @param {Object} media
-   *        Media playlist
-   * @param {string} uri
-   *        The media URI
-   *
-   * @return {Object}
-   *         main playlist
-   */
-
-  const mainForMedia = (media, uri) => {
-    const id = createPlaylistID(0, uri);
-    const main = {
-      mediaGroups: {
-        'AUDIO': {},
-        'VIDEO': {},
-        'CLOSED-CAPTIONS': {},
-        'SUBTITLES': {}
-      },
-      uri: window.location.href,
-      resolvedUri: window.location.href,
-      playlists: [{
-        uri,
-        id,
-        resolvedUri: uri,
-        // m3u8-parser does not attach an attributes property to media playlists so make
-        // sure that the property is attached to avoid undefined reference errors
-        attributes: {}
-      }]
-    }; // set up ID reference
-
-    main.playlists[id] = main.playlists[0]; // URI reference added for backwards compatibility
-
-    main.playlists[uri] = main.playlists[0];
-    return main;
-  };
-  /**
-   * Does an in-place update of the main manifest to add updated playlist URI references
-   * as well as other properties needed by VHS that aren't included by the parser.
-   *
-   * @param {Object} main
-   *        main manifest object
-   * @param {string} uri
-   *        The source URI
-   * @param {function} createGroupID
-   *        A function to determine how to create the groupID for mediaGroups
-   */
-
-  const addPropertiesToMain = (main, uri, createGroupID = groupID) => {
-    main.uri = uri;
-    for (let i = 0; i < main.playlists.length; i++) {
-      if (!main.playlists[i].uri) {
-        // Set up phony URIs for the playlists since playlists are referenced by their URIs
-        // throughout VHS, but some formats (e.g., DASH) don't have external URIs
-        // TODO: consider adding dummy URIs in mpd-parser
-        const phonyUri = `placeholder-uri-${i}`;
-        main.playlists[i].uri = phonyUri;
-      }
-    }
-    const audioOnlyMain = isAudioOnly(main);
-    forEachMediaGroup(main, (properties, mediaType, groupKey, labelKey) => {
-      // add a playlist array under properties
-      if (!properties.playlists || !properties.playlists.length) {
-        // If the manifest is audio only and this media group does not have a uri, check
-        // if the media group is located in the main list of playlists. If it is, don't add
-        // placeholder properties as it shouldn't be considered an alternate audio track.
-        if (audioOnlyMain && mediaType === 'AUDIO' && !properties.uri) {
-          for (let i = 0; i < main.playlists.length; i++) {
-            const p = main.playlists[i];
-            if (p.attributes && p.attributes.AUDIO && p.attributes.AUDIO === groupKey) {
-              return;
-            }
-          }
-        }
-        properties.playlists = [_extends$1({}, properties)];
-      }
-      properties.playlists.forEach(function (p, i) {
-        const groupId = createGroupID(mediaType, groupKey, labelKey, p);
-        const id = createPlaylistID(i, groupId);
-        if (p.uri) {
-          p.resolvedUri = p.resolvedUri || resolveUrl(main.uri, p.uri);
-        } else {
-          // DEPRECATED, this has been added to prevent a breaking change.
-          // previously we only ever had a single media group playlist, so
-          // we mark the first playlist uri without prepending the index as we used to
-          // ideally we would do all of the playlists the same way.
-          p.uri = i === 0 ? groupId : id; // don't resolve a placeholder uri to an absolute url, just use
-          // the placeholder again
-
-          p.resolvedUri = p.uri;
-        }
-        p.id = p.id || id; // add an empty attributes object, all playlists are
-        // expected to have this.
-
-        p.attributes = p.attributes || {}; // setup ID and URI references (URI for backwards compatibility)
-
-        main.playlists[p.id] = p;
-        main.playlists[p.uri] = p;
-      });
-    });
-    setupMediaPlaylists(main);
-    resolveMediaGroupUris(main);
-  };
-  class DateRangesStorage {
-    constructor() {
-      this.offset_ = null;
-      this.pendingDateRanges_ = new Map();
-      this.processedDateRanges_ = new Map();
-    }
-    setOffset(segments = []) {
-      // already set
-      if (this.offset_ !== null) {
-        return;
-      } // no segment to process
-
-      if (!segments.length) {
-        return;
-      }
-      const [firstSegment] = segments; // no program date time
-
-      if (firstSegment.programDateTime === undefined) {
-        return;
-      } // Set offset as ProgramDateTime for the very first segment of the very first playlist load:
-
-      this.offset_ = firstSegment.programDateTime / 1000;
-    }
-    setPendingDateRanges(dateRanges = []) {
-      if (!dateRanges.length) {
-        return;
-      }
-      const [dateRange] = dateRanges;
-      const startTime = dateRange.startDate.getTime();
-      this.trimProcessedDateRanges_(startTime);
-      this.pendingDateRanges_ = dateRanges.reduce((map, pendingDateRange) => {
-        map.set(pendingDateRange.id, pendingDateRange);
-        return map;
-      }, new Map());
-    }
-    processDateRange(dateRange) {
-      this.pendingDateRanges_.delete(dateRange.id);
-      this.processedDateRanges_.set(dateRange.id, dateRange);
-    }
-    getDateRangesToProcess() {
-      if (this.offset_ === null) {
-        return [];
-      }
-      const dateRangeClasses = {};
-      const dateRangesToProcess = [];
-      this.pendingDateRanges_.forEach((dateRange, id) => {
-        if (this.processedDateRanges_.has(id)) {
-          return;
-        }
-        dateRange.startTime = dateRange.startDate.getTime() / 1000 - this.offset_;
-        dateRange.processDateRange = () => this.processDateRange(dateRange);
-        dateRangesToProcess.push(dateRange);
-        if (!dateRange.class) {
-          return;
-        }
-        if (dateRangeClasses[dateRange.class]) {
-          const length = dateRangeClasses[dateRange.class].push(dateRange);
-          dateRange.classListIndex = length - 1;
-        } else {
-          dateRangeClasses[dateRange.class] = [dateRange];
-          dateRange.classListIndex = 0;
-        }
-      });
-      for (const dateRange of dateRangesToProcess) {
-        const classList = dateRangeClasses[dateRange.class] || [];
-        if (dateRange.endDate) {
-          dateRange.endTime = dateRange.endDate.getTime() / 1000 - this.offset_;
-        } else if (dateRange.endOnNext && classList[dateRange.classListIndex + 1]) {
-          dateRange.endTime = classList[dateRange.classListIndex + 1].startTime;
-        } else if (dateRange.duration) {
-          dateRange.endTime = dateRange.startTime + dateRange.duration;
-        } else if (dateRange.plannedDuration) {
-          dateRange.endTime = dateRange.startTime + dateRange.plannedDuration;
-        } else {
-          dateRange.endTime = dateRange.startTime;
-        }
-      }
-      return dateRangesToProcess;
-    }
-    trimProcessedDateRanges_(startTime) {
-      const copy = new Map(this.processedDateRanges_);
-      copy.forEach((dateRange, id) => {
-        if (dateRange.startDate.getTime() < startTime) {
-          this.processedDateRanges_.delete(id);
-        }
-      });
-    }
-  }
-  const {
-    EventTarget: EventTarget$1
-  } = videojs;
-  const addLLHLSQueryDirectives = (uri, media) => {
-    if (media.endList || !media.serverControl) {
-      return uri;
-    }
-    const parameters = {};
-    if (media.serverControl.canBlockReload) {
-      const {
-        preloadSegment
-      } = media; // next msn is a zero based value, length is not.
-
-      let nextMSN = media.mediaSequence + media.segments.length; // If preload segment has parts then it is likely
-      // that we are going to request a part of that preload segment.
-      // the logic below is used to determine that.
-
-      if (preloadSegment) {
-        const parts = preloadSegment.parts || []; // _HLS_part is a zero based index
-
-        const nextPart = getKnownPartCount(media) - 1; // if nextPart is > -1 and not equal to just the
-        // length of parts, then we know we had part preload hints
-        // and we need to add the _HLS_part= query
-
-        if (nextPart > -1 && nextPart !== parts.length - 1) {
-          // add existing parts to our preload hints
-          // eslint-disable-next-line
-          parameters._HLS_part = nextPart;
-        } // this if statement makes sure that we request the msn
-        // of the preload segment if:
-        // 1. the preload segment had parts (and was not yet a full segment)
-        //    but was added to our segments array
-        // 2. the preload segment had preload hints for parts that are not in
-        //    the manifest yet.
-        // in all other cases we want the segment after the preload segment
-        // which will be given by using media.segments.length because it is 1 based
-        // rather than 0 based.
-
-        if (nextPart > -1 || parts.length) {
-          nextMSN--;
-        }
-      } // add _HLS_msn= in front of any _HLS_part query
-      // eslint-disable-next-line
-
-      parameters._HLS_msn = nextMSN;
-    }
-    if (media.serverControl && media.serverControl.canSkipUntil) {
-      // add _HLS_skip= infront of all other queries.
-      // eslint-disable-next-line
-      parameters._HLS_skip = media.serverControl.canSkipDateranges ? 'v2' : 'YES';
-    }
-    if (Object.keys(parameters).length) {
-      const parsedUri = new window.URL(uri);
-      ['_HLS_skip', '_HLS_msn', '_HLS_part'].forEach(function (name) {
-        if (!parameters.hasOwnProperty(name)) {
-          return;
-        }
-        parsedUri.searchParams.set(name, parameters[name]);
-      });
-      uri = parsedUri.toString();
-    }
-    return uri;
-  };
-  /**
-   * Returns a new segment object with properties and
-   * the parts array merged.
-   *
-   * @param {Object} a the old segment
-   * @param {Object} b the new segment
-   *
-   * @return {Object} the merged segment
-   */
-
-  const updateSegment = (a, b) => {
-    if (!a) {
-      return b;
-    }
-    const result = merge(a, b); // if only the old segment has preload hints
-    // and the new one does not, remove preload hints.
-
-    if (a.preloadHints && !b.preloadHints) {
-      delete result.preloadHints;
-    } // if only the old segment has parts
-    // then the parts are no longer valid
-
-    if (a.parts && !b.parts) {
-      delete result.parts; // if both segments have parts
-      // copy part propeties from the old segment
-      // to the new one.
-    } else if (a.parts && b.parts) {
-      for (let i = 0; i < b.parts.length; i++) {
-        if (a.parts && a.parts[i]) {
-          result.parts[i] = merge(a.parts[i], b.parts[i]);
-        }
-      }
-    } // set skipped to false for segments that have
-    // have had information merged from the old segment.
-
-    if (!a.skipped && b.skipped) {
-      result.skipped = false;
-    } // set preload to false for segments that have
-    // had information added in the new segment.
-
-    if (a.preload && !b.preload) {
-      result.preload = false;
-    }
-    return result;
-  };
-  /**
-   * Returns a new array of segments that is the result of merging
-   * properties from an older list of segments onto an updated
-   * list. No properties on the updated playlist will be ovewritten.
-   *
-   * @param {Array} original the outdated list of segments
-   * @param {Array} update the updated list of segments
-   * @param {number=} offset the index of the first update
-   * segment in the original segment list. For non-live playlists,
-   * this should always be zero and does not need to be
-   * specified. For live playlists, it should be the difference
-   * between the media sequence numbers in the original and updated
-   * playlists.
-   * @return {Array} a list of merged segment objects
-   */
-
-  const updateSegments = (original, update, offset) => {
-    const oldSegments = original.slice();
-    const newSegments = update.slice();
-    offset = offset || 0;
-    const result = [];
-    let currentMap;
-    for (let newIndex = 0; newIndex < newSegments.length; newIndex++) {
-      const oldSegment = oldSegments[newIndex + offset];
-      const newSegment = newSegments[newIndex];
-      if (oldSegment) {
-        currentMap = oldSegment.map || currentMap;
-        result.push(updateSegment(oldSegment, newSegment));
-      } else {
-        // carry over map to new segment if it is missing
-        if (currentMap && !newSegment.map) {
-          newSegment.map = currentMap;
-        }
-        result.push(newSegment);
-      }
-    }
-    return result;
-  };
-  const resolveSegmentUris = (segment, baseUri) => {
-    // preloadSegment will not have a uri at all
-    // as the segment isn't actually in the manifest yet, only parts
-    if (!segment.resolvedUri && segment.uri) {
-      segment.resolvedUri = resolveUrl(baseUri, segment.uri);
-    }
-    if (segment.key && !segment.key.resolvedUri) {
-      segment.key.resolvedUri = resolveUrl(baseUri, segment.key.uri);
-    }
-    if (segment.map && !segment.map.resolvedUri) {
-      segment.map.resolvedUri = resolveUrl(baseUri, segment.map.uri);
-    }
-    if (segment.map && segment.map.key && !segment.map.key.resolvedUri) {
-      segment.map.key.resolvedUri = resolveUrl(baseUri, segment.map.key.uri);
-    }
-    if (segment.parts && segment.parts.length) {
-      segment.parts.forEach(p => {
-        if (p.resolvedUri) {
-          return;
-        }
-        p.resolvedUri = resolveUrl(baseUri, p.uri);
-      });
-    }
-    if (segment.preloadHints && segment.preloadHints.length) {
-      segment.preloadHints.forEach(p => {
-        if (p.resolvedUri) {
-          return;
-        }
-        p.resolvedUri = resolveUrl(baseUri, p.uri);
-      });
-    }
-  };
-  const getAllSegments = function (media) {
-    const segments = media.segments || [];
-    const preloadSegment = media.preloadSegment; // a preloadSegment with only preloadHints is not currently
-    // a usable segment, only include a preloadSegment that has
-    // parts.
-
-    if (preloadSegment && preloadSegment.parts && preloadSegment.parts.length) {
-      // if preloadHints has a MAP that means that the
-      // init segment is going to change. We cannot use any of the parts
-      // from this preload segment.
-      if (preloadSegment.preloadHints) {
-        for (let i = 0; i < preloadSegment.preloadHints.length; i++) {
-          if (preloadSegment.preloadHints[i].type === 'MAP') {
-            return segments;
-          }
-        }
-      } // set the duration for our preload segment to target duration.
-
-      preloadSegment.duration = media.targetDuration;
-      preloadSegment.preload = true;
-      segments.push(preloadSegment);
-    }
-    return segments;
-  }; // consider the playlist unchanged if the playlist object is the same or
-  // the number of segments is equal, the media sequence number is unchanged,
-  // and this playlist hasn't become the end of the playlist
-
-  const isPlaylistUnchanged = (a, b) => a === b || a.segments && b.segments && a.segments.length === b.segments.length && a.endList === b.endList && a.mediaSequence === b.mediaSequence && a.preloadSegment === b.preloadSegment;
-  /**
-    * Returns a new main playlist that is the result of merging an
-    * updated media playlist into the original version. If the
-    * updated media playlist does not match any of the playlist
-    * entries in the original main playlist, null is returned.
-    *
-    * @param {Object} main a parsed main M3U8 object
-    * @param {Object} media a parsed media M3U8 object
-    * @return {Object} a new object that represents the original
-    * main playlist with the updated media playlist merged in, or
-    * null if the merge produced no change.
-    */
-
-  const updateMain$1 = (main, newMedia, unchangedCheck = isPlaylistUnchanged) => {
-    const result = merge(main, {});
-    const oldMedia = result.playlists[newMedia.id];
-    if (!oldMedia) {
-      return null;
-    }
-    if (unchangedCheck(oldMedia, newMedia)) {
-      return null;
-    }
-    newMedia.segments = getAllSegments(newMedia);
-    const mergedPlaylist = merge(oldMedia, newMedia); // always use the new media's preload segment
-
-    if (mergedPlaylist.preloadSegment && !newMedia.preloadSegment) {
-      delete mergedPlaylist.preloadSegment;
-    } // if the update could overlap existing segment information, merge the two segment lists
-
-    if (oldMedia.segments) {
-      if (newMedia.skip) {
-        newMedia.segments = newMedia.segments || []; // add back in objects for skipped segments, so that we merge
-        // old properties into the new segments
-
-        for (let i = 0; i < newMedia.skip.skippedSegments; i++) {
-          newMedia.segments.unshift({
-            skipped: true
-          });
-        }
-      }
-      mergedPlaylist.segments = updateSegments(oldMedia.segments, newMedia.segments, newMedia.mediaSequence - oldMedia.mediaSequence);
-    } // resolve any segment URIs to prevent us from having to do it later
-
-    mergedPlaylist.segments.forEach(segment => {
-      resolveSegmentUris(segment, mergedPlaylist.resolvedUri);
-    }); // TODO Right now in the playlists array there are two references to each playlist, one
-    // that is referenced by index, and one by URI. The index reference may no longer be
-    // necessary.
-
-    for (let i = 0; i < result.playlists.length; i++) {
-      if (result.playlists[i].id === newMedia.id) {
-        result.playlists[i] = mergedPlaylist;
-      }
-    }
-    result.playlists[newMedia.id] = mergedPlaylist; // URI reference added for backwards compatibility
-
-    result.playlists[newMedia.uri] = mergedPlaylist; // update media group playlist references.
-
-    forEachMediaGroup(main, (properties, mediaType, groupKey, labelKey) => {
-      if (!properties.playlists) {
-        return;
-      }
-      for (let i = 0; i < properties.playlists.length; i++) {
-        if (newMedia.id === properties.playlists[i].id) {
-          properties.playlists[i] = mergedPlaylist;
-        }
-      }
-    });
-    return result;
-  };
-  /**
-   * Calculates the time to wait before refreshing a live playlist
-   *
-   * @param {Object} media
-   *        The current media
-   * @param {boolean} update
-   *        True if there were any updates from the last refresh, false otherwise
-   * @return {number}
-   *         The time in ms to wait before refreshing the live playlist
-   */
-
-  const refreshDelay = (media, update) => {
-    const segments = media.segments || [];
-    const lastSegment = segments[segments.length - 1];
-    const lastPart = lastSegment && lastSegment.parts && lastSegment.parts[lastSegment.parts.length - 1];
-    const lastDuration = lastPart && lastPart.duration || lastSegment && lastSegment.duration;
-    if (update && lastDuration) {
-      return lastDuration * 1000;
-    } // if the playlist is unchanged since the last reload or last segment duration
-    // cannot be determined, try again after half the target duration
-
-    return (media.partTargetDuration || media.targetDuration || 10) * 500;
-  };
-  /**
-   * Load a playlist from a remote location
-   *
-   * @class PlaylistLoader
-   * @extends Stream
-   * @param {string|Object} src url or object of manifest
-   * @param {boolean} withCredentials the withCredentials xhr option
-   * @class
-   */
-
-  class PlaylistLoader extends EventTarget$1 {
-    constructor(src, vhs, options = {}) {
-      super();
-      if (!src) {
-        throw new Error('A non-empty playlist URL or object is required');
-      }
-      this.logger_ = logger('PlaylistLoader');
-      const {
-        withCredentials = false
-      } = options;
-      this.src = src;
-      this.vhs_ = vhs;
-      this.withCredentials = withCredentials;
-      this.addDateRangesToTextTrack_ = options.addDateRangesToTextTrack;
-      const vhsOptions = vhs.options_;
-      this.customTagParsers = vhsOptions && vhsOptions.customTagParsers || [];
-      this.customTagMappers = vhsOptions && vhsOptions.customTagMappers || [];
-      this.llhls = vhsOptions && vhsOptions.llhls;
-      this.dateRangesStorage_ = new DateRangesStorage(); // initialize the loader state
-
-      this.state = 'HAVE_NOTHING'; // live playlist staleness timeout
-
-      this.handleMediaupdatetimeout_ = this.handleMediaupdatetimeout_.bind(this);
-      this.on('mediaupdatetimeout', this.handleMediaupdatetimeout_);
-      this.on('loadedplaylist', this.handleLoadedPlaylist_.bind(this));
-    }
-    handleLoadedPlaylist_() {
-      const mediaPlaylist = this.media();
-      if (!mediaPlaylist) {
-        return;
-      }
-      this.dateRangesStorage_.setOffset(mediaPlaylist.segments);
-      this.dateRangesStorage_.setPendingDateRanges(mediaPlaylist.dateRanges);
-      const availableDateRanges = this.dateRangesStorage_.getDateRangesToProcess();
-      if (!availableDateRanges.length || !this.addDateRangesToTextTrack_) {
-        return;
-      }
-      this.addDateRangesToTextTrack_(availableDateRanges);
-    }
-    handleMediaupdatetimeout_() {
-      if (this.state !== 'HAVE_METADATA') {
-        // only refresh the media playlist if no other activity is going on
-        return;
-      }
-      const media = this.media();
-      let uri = resolveUrl(this.main.uri, media.uri);
-      if (this.llhls) {
-        uri = addLLHLSQueryDirectives(uri, media);
-      }
-      this.state = 'HAVE_CURRENT_METADATA';
-      this.request = this.vhs_.xhr({
-        uri,
-        withCredentials: this.withCredentials,
-        requestType: 'hls-playlist'
-      }, (error, req) => {
-        // disposed
-        if (!this.request) {
-          return;
-        }
-        if (error) {
-          return this.playlistRequestError(this.request, this.media(), 'HAVE_METADATA');
-        }
-        this.haveMetadata({
-          playlistString: this.request.responseText,
-          url: this.media().uri,
-          id: this.media().id
-        });
-      });
-    }
-    playlistRequestError(xhr, playlist, startingState) {
-      const {
-        uri,
-        id
-      } = playlist; // any in-flight request is now finished
-
-      this.request = null;
-      if (startingState) {
-        this.state = startingState;
-      }
-      this.error = {
-        playlist: this.main.playlists[id],
-        status: xhr.status,
-        message: `HLS playlist request error at URL: ${uri}.`,
-        responseText: xhr.responseText,
-        code: xhr.status >= 500 ? 4 : 2,
-        metadata: {
-          errorType: videojs.Error.HlsPlaylistRequestError
-        }
-      };
-      this.trigger('error');
-    }
-    parseManifest_({
-      url,
-      manifestString
-    }) {
-      return parseManifest({
-        onwarn: ({
-          message
-        }) => this.logger_(`m3u8-parser warn for ${url}: ${message}`),
-        oninfo: ({
-          message
-        }) => this.logger_(`m3u8-parser info for ${url}: ${message}`),
-        manifestString,
-        customTagParsers: this.customTagParsers,
-        customTagMappers: this.customTagMappers,
-        llhls: this.llhls
-      });
-    }
-    /**
-     * Update the playlist loader's state in response to a new or updated playlist.
-     *
-     * @param {string} [playlistString]
-     *        Playlist string (if playlistObject is not provided)
-     * @param {Object} [playlistObject]
-     *        Playlist object (if playlistString is not provided)
-     * @param {string} url
-     *        URL of playlist
-     * @param {string} id
-     *        ID to use for playlist
-     */
-
-    haveMetadata({
-      playlistString,
-      playlistObject,
-      url,
-      id
-    }) {
-      // any in-flight request is now finished
-      this.request = null;
-      this.state = 'HAVE_METADATA';
-      const playlist = playlistObject || this.parseManifest_({
-        url,
-        manifestString: playlistString
-      });
-      playlist.lastRequest = Date.now();
-      setupMediaPlaylist({
-        playlist,
-        uri: url,
-        id
-      }); // merge this playlist into the main manifest
-
-      const update = updateMain$1(this.main, playlist);
-      this.targetDuration = playlist.partTargetDuration || playlist.targetDuration;
-      this.pendingMedia_ = null;
-      if (update) {
-        this.main = update;
-        this.media_ = this.main.playlists[id];
-      } else {
-        this.trigger('playlistunchanged');
-      }
-      this.updateMediaUpdateTimeout_(refreshDelay(this.media(), !!update));
-      this.trigger('loadedplaylist');
-    }
-    /**
-      * Abort any outstanding work and clean up.
-      */
-
-    dispose() {
-      this.trigger('dispose');
-      this.stopRequest();
-      window.clearTimeout(this.mediaUpdateTimeout);
-      window.clearTimeout(this.finalRenditionTimeout);
-      this.dateRangesStorage_ = new DateRangesStorage();
-      this.off();
-    }
-    stopRequest() {
-      if (this.request) {
-        const oldRequest = this.request;
-        this.request = null;
-        oldRequest.onreadystatechange = null;
-        oldRequest.abort();
-      }
-    }
-    /**
-      * When called without any arguments, returns the currently
-      * active media playlist. When called with a single argument,
-      * triggers the playlist loader to asynchronously switch to the
-      * specified media playlist. Calling this method while the
-      * loader is in the HAVE_NOTHING causes an error to be emitted
-      * but otherwise has no effect.
-      *
-      * @param {Object=} playlist the parsed media playlist
-      * object to switch to
-      * @param {boolean=} shouldDelay whether we should delay the request by half target duration
-      *
-      * @return {Playlist} the current loaded media
-      */
-
-    media(playlist, shouldDelay) {
-      // getter
-      if (!playlist) {
-        return this.media_;
-      } // setter
-
-      if (this.state === 'HAVE_NOTHING') {
-        throw new Error('Cannot switch media playlist from ' + this.state);
-      } // find the playlist object if the target playlist has been
-      // specified by URI
-
-      if (typeof playlist === 'string') {
-        if (!this.main.playlists[playlist]) {
-          throw new Error('Unknown playlist URI: ' + playlist);
-        }
-        playlist = this.main.playlists[playlist];
-      }
-      window.clearTimeout(this.finalRenditionTimeout);
-      if (shouldDelay) {
-        const delay = (playlist.partTargetDuration || playlist.targetDuration) / 2 * 1000 || 5 * 1000;
-        this.finalRenditionTimeout = window.setTimeout(this.media.bind(this, playlist, false), delay);
-        return;
-      }
-      const startingState = this.state;
-      const mediaChange = !this.media_ || playlist.id !== this.media_.id;
-      const mainPlaylistRef = this.main.playlists[playlist.id]; // switch to fully loaded playlists immediately
-
-      if (mainPlaylistRef && mainPlaylistRef.endList ||
-      // handle the case of a playlist object (e.g., if using vhs-json with a resolved
-      // media playlist or, for the case of demuxed audio, a resolved audio media group)
-      playlist.endList && playlist.segments.length) {
-        // abort outstanding playlist requests
-        if (this.request) {
-          this.request.onreadystatechange = null;
-          this.request.abort();
-          this.request = null;
-        }
-        this.state = 'HAVE_METADATA';
-        this.media_ = playlist; // trigger media change if the active media has been updated
-
-        if (mediaChange) {
-          this.trigger('mediachanging');
-          if (startingState === 'HAVE_MAIN_MANIFEST') {
-            // The initial playlist was a main manifest, and the first media selected was
-            // also provided (in the form of a resolved playlist object) as part of the
-            // source object (rather than just a URL). Therefore, since the media playlist
-            // doesn't need to be requested, loadedmetadata won't trigger as part of the
-            // normal flow, and needs an explicit trigger here.
-            this.trigger('loadedmetadata');
-          } else {
-            this.trigger('mediachange');
-          }
-        }
-        return;
-      } // We update/set the timeout here so that live playlists
-      // that are not a media change will "start" the loader as expected.
-      // We expect that this function will start the media update timeout
-      // cycle again. This also prevents a playlist switch failure from
-      // causing us to stall during live.
-
-      this.updateMediaUpdateTimeout_(refreshDelay(playlist, true)); // switching to the active playlist is a no-op
-
-      if (!mediaChange) {
-        return;
-      }
-      this.state = 'SWITCHING_MEDIA'; // there is already an outstanding playlist request
-
-      if (this.request) {
-        if (playlist.resolvedUri === this.request.url) {
-          // requesting to switch to the same playlist multiple times
-          // has no effect after the first
-          return;
-        }
-        this.request.onreadystatechange = null;
-        this.request.abort();
-        this.request = null;
-      } // request the new playlist
-
-      if (this.media_) {
-        this.trigger('mediachanging');
-      }
-      this.pendingMedia_ = playlist;
-      this.request = this.vhs_.xhr({
-        uri: playlist.resolvedUri,
-        withCredentials: this.withCredentials,
-        requestType: 'hls-playlist'
-      }, (error, req) => {
-        // disposed
-        if (!this.request) {
-          return;
-        }
-        playlist.lastRequest = Date.now();
-        playlist.resolvedUri = resolveManifestRedirect(playlist.resolvedUri, req);
-        if (error) {
-          return this.playlistRequestError(this.request, playlist, startingState);
-        }
-        this.haveMetadata({
-          playlistString: req.responseText,
-          url: playlist.uri,
-          id: playlist.id
-        }); // fire loadedmetadata the first time a media playlist is loaded
-
-        if (startingState === 'HAVE_MAIN_MANIFEST') {
-          this.trigger('loadedmetadata');
-        } else {
-          this.trigger('mediachange');
-        }
-      });
-    }
-    /**
-     * pause loading of the playlist
-     */
-
-    pause() {
-      if (this.mediaUpdateTimeout) {
-        window.clearTimeout(this.mediaUpdateTimeout);
-        this.mediaUpdateTimeout = null;
-      }
-      this.stopRequest();
-      if (this.state === 'HAVE_NOTHING') {
-        // If we pause the loader before any data has been retrieved, its as if we never
-        // started, so reset to an unstarted state.
-        this.started = false;
-      } // Need to restore state now that no activity is happening
-
-      if (this.state === 'SWITCHING_MEDIA') {
-        // if the loader was in the process of switching media, it should either return to
-        // HAVE_MAIN_MANIFEST or HAVE_METADATA depending on if the loader has loaded a media
-        // playlist yet. This is determined by the existence of loader.media_
-        if (this.media_) {
-          this.state = 'HAVE_METADATA';
-        } else {
-          this.state = 'HAVE_MAIN_MANIFEST';
-        }
-      } else if (this.state === 'HAVE_CURRENT_METADATA') {
-        this.state = 'HAVE_METADATA';
-      }
-    }
-    /**
-     * start loading of the playlist
-     */
-
-    load(shouldDelay) {
-      if (this.mediaUpdateTimeout) {
-        window.clearTimeout(this.mediaUpdateTimeout);
-        this.mediaUpdateTimeout = null;
-      }
-      const media = this.media();
-      if (shouldDelay) {
-        const delay = media ? (media.partTargetDuration || media.targetDuration) / 2 * 1000 : 5 * 1000;
-        this.mediaUpdateTimeout = window.setTimeout(() => {
-          this.mediaUpdateTimeout = null;
-          this.load();
-        }, delay);
-        return;
-      }
-      if (!this.started) {
-        this.start();
-        return;
-      }
-      if (media && !media.endList) {
-        this.trigger('mediaupdatetimeout');
-      } else {
-        this.trigger('loadedplaylist');
-      }
-    }
-    updateMediaUpdateTimeout_(delay) {
-      if (this.mediaUpdateTimeout) {
-        window.clearTimeout(this.mediaUpdateTimeout);
-        this.mediaUpdateTimeout = null;
-      } // we only have use mediaupdatetimeout for live playlists.
-
-      if (!this.media() || this.media().endList) {
-        return;
-      }
-      this.mediaUpdateTimeout = window.setTimeout(() => {
-        this.mediaUpdateTimeout = null;
-        this.trigger('mediaupdatetimeout');
-        this.updateMediaUpdateTimeout_(delay);
-      }, delay);
-    }
-    /**
-     * start loading of the playlist
-     */
-
-    start() {
-      this.started = true;
-      if (typeof this.src === 'object') {
-        // in the case of an entirely constructed manifest object (meaning there's no actual
-        // manifest on a server), default the uri to the page's href
-        if (!this.src.uri) {
-          this.src.uri = window.location.href;
-        } // resolvedUri is added on internally after the initial request. Since there's no
-        // request for pre-resolved manifests, add on resolvedUri here.
-
-        this.src.resolvedUri = this.src.uri; // Since a manifest object was passed in as the source (instead of a URL), the first
-        // request can be skipped (since the top level of the manifest, at a minimum, is
-        // already available as a parsed manifest object). However, if the manifest object
-        // represents a main playlist, some media playlists may need to be resolved before
-        // the starting segment list is available. Therefore, go directly to setup of the
-        // initial playlist, and let the normal flow continue from there.
-        //
-        // Note that the call to setup is asynchronous, as other sections of VHS may assume
-        // that the first request is asynchronous.
-
-        setTimeout(() => {
-          this.setupInitialPlaylist(this.src);
-        }, 0);
-        return;
-      } // request the specified URL
-
-      this.request = this.vhs_.xhr({
-        uri: this.src,
-        withCredentials: this.withCredentials,
-        requestType: 'hls-playlist'
-      }, (error, req) => {
-        // disposed
-        if (!this.request) {
-          return;
-        } // clear the loader's request reference
-
-        this.request = null;
-        if (error) {
-          this.error = {
-            status: req.status,
-            message: `HLS playlist request error at URL: ${this.src}.`,
-            responseText: req.responseText,
-            // MEDIA_ERR_NETWORK
-            code: 2,
-            metadata: {
-              errorType: videojs.Error.HlsPlaylistRequestError
-            }
-          };
-          if (this.state === 'HAVE_NOTHING') {
-            this.started = false;
-          }
-          return this.trigger('error');
-        }
-        this.src = resolveManifestRedirect(this.src, req);
-        const manifest = this.parseManifest_({
-          manifestString: req.responseText,
-          url: this.src
-        });
-        this.setupInitialPlaylist(manifest);
-      });
-    }
-    srcUri() {
-      return typeof this.src === 'string' ? this.src : this.src.uri;
-    }
-    /**
-     * Given a manifest object that's either a main or media playlist, trigger the proper
-     * events and set the state of the playlist loader.
-     *
-     * If the manifest object represents a main playlist, `loadedplaylist` will be
-     * triggered to allow listeners to select a playlist. If none is selected, the loader
-     * will default to the first one in the playlists array.
-     *
-     * If the manifest object represents a media playlist, `loadedplaylist` will be
-     * triggered followed by `loadedmetadata`, as the only available playlist is loaded.
-     *
-     * In the case of a media playlist, a main playlist object wrapper with one playlist
-     * will be created so that all logic can handle playlists in the same fashion (as an
-     * assumed manifest object schema).
-     *
-     * @param {Object} manifest
-     *        The parsed manifest object
-     */
-
-    setupInitialPlaylist(manifest) {
-      this.state = 'HAVE_MAIN_MANIFEST';
-      if (manifest.playlists) {
-        this.main = manifest;
-        addPropertiesToMain(this.main, this.srcUri()); // If the initial main playlist has playlists wtih segments already resolved,
-        // then resolve URIs in advance, as they are usually done after a playlist request,
-        // which may not happen if the playlist is resolved.
-
-        manifest.playlists.forEach(playlist => {
-          playlist.segments = getAllSegments(playlist);
-          playlist.segments.forEach(segment => {
-            resolveSegmentUris(segment, playlist.resolvedUri);
-          });
-        });
-        this.trigger('loadedplaylist');
-        if (!this.request) {
-          // no media playlist was specifically selected so start
-          // from the first listed one
-          this.media(this.main.playlists[0]);
-        }
-        return;
-      } // In order to support media playlists passed in as vhs-json, the case where the uri
-      // is not provided as part of the manifest should be considered, and an appropriate
-      // default used.
-
-      const uri = this.srcUri() || window.location.href;
-      this.main = mainForMedia(manifest, uri);
-      this.haveMetadata({
-        playlistObject: manifest,
-        url: uri,
-        id: this.main.playlists[0].id
-      });
-      this.trigger('loadedmetadata');
-    }
-    /**
-     * Updates or deletes a preexisting pathway clone.
-     * Ensures that all playlists related to the old pathway clone are
-     * either updated or deleted.
-     *
-     * @param {Object} clone On update, the pathway clone object for the newly updated pathway clone.
-     *        On delete, the old pathway clone object to be deleted.
-     * @param {boolean} isUpdate True if the pathway is to be updated,
-     *        false if it is meant to be deleted.
-     */
-
-    updateOrDeleteClone(clone, isUpdate) {
-      const main = this.main;
-      const pathway = clone.ID;
-      let i = main.playlists.length; // Iterate backwards through the playlist so we can remove playlists if necessary.
-
-      while (i--) {
-        const p = main.playlists[i];
-        if (p.attributes['PATHWAY-ID'] === pathway) {
-          const oldPlaylistUri = p.resolvedUri;
-          const oldPlaylistId = p.id; // update the indexed playlist and add new playlists by ID and URI
-
-          if (isUpdate) {
-            const newPlaylistUri = this.createCloneURI_(p.resolvedUri, clone);
-            const newPlaylistId = createPlaylistID(pathway, newPlaylistUri);
-            const attributes = this.createCloneAttributes_(pathway, p.attributes);
-            const updatedPlaylist = this.createClonePlaylist_(p, newPlaylistId, clone, attributes);
-            main.playlists[i] = updatedPlaylist;
-            main.playlists[newPlaylistId] = updatedPlaylist;
-            main.playlists[newPlaylistUri] = updatedPlaylist;
-          } else {
-            // Remove the indexed playlist.
-            main.playlists.splice(i, 1);
-          } // Remove playlists by the old ID and URI.
-
-          delete main.playlists[oldPlaylistId];
-          delete main.playlists[oldPlaylistUri];
-        }
-      }
-      this.updateOrDeleteCloneMedia(clone, isUpdate);
-    }
-    /**
-     * Updates or deletes media data based on the pathway clone object.
-     * Due to the complexity of the media groups and playlists, in all cases
-     * we remove all of the old media groups and playlists.
-     * On updates, we then create new media groups and playlists based on the
-     * new pathway clone object.
-     *
-     * @param {Object} clone The pathway clone object for the newly updated pathway clone.
-     * @param {boolean} isUpdate True if the pathway is to be updated,
-     *        false if it is meant to be deleted.
-     */
-
-    updateOrDeleteCloneMedia(clone, isUpdate) {
-      const main = this.main;
-      const id = clone.ID;
-      ['AUDIO', 'SUBTITLES', 'CLOSED-CAPTIONS'].forEach(mediaType => {
-        if (!main.mediaGroups[mediaType] || !main.mediaGroups[mediaType][id]) {
-          return;
-        }
-        for (const groupKey in main.mediaGroups[mediaType]) {
-          // Remove all media playlists for the media group for this pathway clone.
-          if (groupKey === id) {
-            for (const labelKey in main.mediaGroups[mediaType][groupKey]) {
-              const oldMedia = main.mediaGroups[mediaType][groupKey][labelKey];
-              oldMedia.playlists.forEach((p, i) => {
-                const oldMediaPlaylist = main.playlists[p.id];
-                const oldPlaylistId = oldMediaPlaylist.id;
-                const oldPlaylistUri = oldMediaPlaylist.resolvedUri;
-                delete main.playlists[oldPlaylistId];
-                delete main.playlists[oldPlaylistUri];
-              });
-            } // Delete the old media group.
-
-            delete main.mediaGroups[mediaType][groupKey];
-          }
-        }
-      }); // Create the new media groups and playlists if there is an update.
-
-      if (isUpdate) {
-        this.createClonedMediaGroups_(clone);
-      }
-    }
-    /**
-     * Given a pathway clone object, clones all necessary playlists.
-     *
-     * @param {Object} clone The pathway clone object.
-     * @param {Object} basePlaylist The original playlist to clone from.
-     */
-
-    addClonePathway(clone, basePlaylist = {}) {
-      const main = this.main;
-      const index = main.playlists.length;
-      const uri = this.createCloneURI_(basePlaylist.resolvedUri, clone);
-      const playlistId = createPlaylistID(clone.ID, uri);
-      const attributes = this.createCloneAttributes_(clone.ID, basePlaylist.attributes);
-      const playlist = this.createClonePlaylist_(basePlaylist, playlistId, clone, attributes);
-      main.playlists[index] = playlist; // add playlist by ID and URI
-
-      main.playlists[playlistId] = playlist;
-      main.playlists[uri] = playlist;
-      this.createClonedMediaGroups_(clone);
-    }
-    /**
-     * Given a pathway clone object we create clones of all media.
-     * In this function, all necessary information and updated playlists
-     * are added to the `mediaGroup` object.
-     * Playlists are also added to the `playlists` array so the media groups
-     * will be properly linked.
-     *
-     * @param {Object} clone The pathway clone object.
-     */
-
-    createClonedMediaGroups_(clone) {
-      const id = clone.ID;
-      const baseID = clone['BASE-ID'];
-      const main = this.main;
-      ['AUDIO', 'SUBTITLES', 'CLOSED-CAPTIONS'].forEach(mediaType => {
-        // If the media type doesn't exist, or there is already a clone, skip
-        // to the next media type.
-        if (!main.mediaGroups[mediaType] || main.mediaGroups[mediaType][id]) {
-          return;
-        }
-        for (const groupKey in main.mediaGroups[mediaType]) {
-          if (groupKey === baseID) {
-            // Create the group.
-            main.mediaGroups[mediaType][id] = {};
-          } else {
-            // There is no need to iterate over label keys in this case.
-            continue;
-          }
-          for (const labelKey in main.mediaGroups[mediaType][groupKey]) {
-            const oldMedia = main.mediaGroups[mediaType][groupKey][labelKey];
-            main.mediaGroups[mediaType][id][labelKey] = _extends$1({}, oldMedia);
-            const newMedia = main.mediaGroups[mediaType][id][labelKey]; // update URIs on the media
-
-            const newUri = this.createCloneURI_(oldMedia.resolvedUri, clone);
-            newMedia.resolvedUri = newUri;
-            newMedia.uri = newUri; // Reset playlists in the new media group.
-
-            newMedia.playlists = []; // Create new playlists in the newly cloned media group.
-
-            oldMedia.playlists.forEach((p, i) => {
-              const oldMediaPlaylist = main.playlists[p.id];
-              const group = groupID(mediaType, id, labelKey);
-              const newPlaylistID = createPlaylistID(id, group); // Check to see if it already exists
-
-              if (oldMediaPlaylist && !main.playlists[newPlaylistID]) {
-                const newMediaPlaylist = this.createClonePlaylist_(oldMediaPlaylist, newPlaylistID, clone);
-                const newPlaylistUri = newMediaPlaylist.resolvedUri;
-                main.playlists[newPlaylistID] = newMediaPlaylist;
-                main.playlists[newPlaylistUri] = newMediaPlaylist;
-              }
-              newMedia.playlists[i] = this.createClonePlaylist_(p, newPlaylistID, clone);
-            });
-          }
-        }
-      });
-    }
-    /**
-     * Using the original playlist to be cloned, and the pathway clone object
-     * information, we create a new playlist.
-     *
-     * @param {Object} basePlaylist  The original playlist to be cloned from.
-     * @param {string} id The desired id of the newly cloned playlist.
-     * @param {Object} clone The pathway clone object.
-     * @param {Object} attributes An optional object to populate the `attributes` property in the playlist.
-     *
-     * @return {Object} The combined cloned playlist.
-     */
-
-    createClonePlaylist_(basePlaylist, id, clone, attributes) {
-      const uri = this.createCloneURI_(basePlaylist.resolvedUri, clone);
-      const newProps = {
-        resolvedUri: uri,
-        uri,
-        id
-      }; // Remove all segments from previous playlist in the clone.
-
-      if (basePlaylist.segments) {
-        newProps.segments = [];
-      }
-      if (attributes) {
-        newProps.attributes = attributes;
-      }
-      return merge(basePlaylist, newProps);
-    }
-    /**
-     * Generates an updated URI for a cloned pathway based on the original
-     * pathway's URI and the paramaters from the pathway clone object in the
-     * content steering server response.
-     *
-     * @param {string} baseUri URI to be updated in the cloned pathway.
-     * @param {Object} clone The pathway clone object.
-     *
-     * @return {string} The updated URI for the cloned pathway.
-     */
-
-    createCloneURI_(baseURI, clone) {
-      const uri = new URL(baseURI);
-      uri.hostname = clone['URI-REPLACEMENT'].HOST;
-      const params = clone['URI-REPLACEMENT'].PARAMS; // Add params to the cloned URL.
-
-      for (const key of Object.keys(params)) {
-        uri.searchParams.set(key, params[key]);
-      }
-      return uri.href;
-    }
-    /**
-     * Helper function to create the attributes needed for the new clone.
-     * This mainly adds the necessary media attributes.
-     *
-     * @param {string} id The pathway clone object ID.
-     * @param {Object} oldAttributes The old attributes to compare to.
-     * @return {Object} The new attributes to add to the playlist.
-     */
-
-    createCloneAttributes_(id, oldAttributes) {
-      const attributes = {
-        ['PATHWAY-ID']: id
-      };
-      ['AUDIO', 'SUBTITLES', 'CLOSED-CAPTIONS'].forEach(mediaType => {
-        if (oldAttributes[mediaType]) {
-          attributes[mediaType] = id;
-        }
-      });
-      return attributes;
-    }
-    /**
-     * Returns the key ID set from a playlist
-     *
-     * @param {playlist} playlist to fetch the key ID set from.
-     * @return a Set of 32 digit hex strings that represent the unique keyIds for that playlist.
-     */
-
-    getKeyIdSet(playlist) {
-      if (playlist.contentProtection) {
-        const keyIds = new Set();
-        for (const keysystem in playlist.contentProtection) {
-          const keyId = playlist.contentProtection[keysystem].attributes.keyId;
-          if (keyId) {
-            keyIds.add(keyId.toLowerCase());
-          }
-        }
-        return keyIds;
-      }
-    }
-  }
-
-  /**
-   * @file xhr.js
-   */
-
-  const callbackWrapper = function (request, error, response, callback) {
-    const reqResponse = request.responseType === 'arraybuffer' ? request.response : request.responseText;
-    if (!error && reqResponse) {
-      request.responseTime = Date.now();
-      request.roundTripTime = request.responseTime - request.requestTime;
-      request.bytesReceived = reqResponse.byteLength || reqResponse.length;
-      if (!request.bandwidth) {
-        request.bandwidth = Math.floor(request.bytesReceived / request.roundTripTime * 8 * 1000);
-      }
-    }
-    if (response.headers) {
-      request.responseHeaders = response.headers;
-    } // videojs.xhr now uses a specific code on the error
-    // object to signal that a request has timed out instead
-    // of setting a boolean on the request object
-
-    if (error && error.code === 'ETIMEDOUT') {
-      request.timedout = true;
-    } // videojs.xhr no longer considers status codes outside of 200 and 0
-    // (for file uris) to be errors, but the old XHR did, so emulate that
-    // behavior. Status 206 may be used in response to byterange requests.
-
-    if (!error && !request.aborted && response.statusCode !== 200 && response.statusCode !== 206 && response.statusCode !== 0) {
-      error = new Error('XHR Failed with a response of: ' + (request && (reqResponse || request.responseText)));
-    }
-    callback(error, request);
-  };
-  /**
-   * Iterates over the request hooks Set and calls them in order
-   *
-   * @param {Set} hooks the hook Set to iterate over
-   * @param {Object} options the request options to pass to the xhr wrapper
-   * @return the callback hook function return value, the modified or new options Object.
-   */
-
-  const callAllRequestHooks = (requestSet, options) => {
-    if (!requestSet || !requestSet.size) {
-      return;
-    }
-    let newOptions = options;
-    requestSet.forEach(requestCallback => {
-      newOptions = requestCallback(newOptions);
-    });
-    return newOptions;
-  };
-  /**
-   * Iterates over the response hooks Set and calls them in order.
-   *
-   * @param {Set} hooks the hook Set to iterate over
-   * @param {Object} request the xhr request object
-   * @param {Object} error the xhr error object
-   * @param {Object} response the xhr response object
-   */
-
-  const callAllResponseHooks = (responseSet, request, error, response) => {
-    if (!responseSet || !responseSet.size) {
-      return;
-    }
-    responseSet.forEach(responseCallback => {
-      responseCallback(request, error, response);
-    });
-  };
-  const xhrFactory = function () {
-    const xhr = function XhrFunction(options, callback) {
-      // Add a default timeout
-      options = merge({
-        timeout: 45e3
-      }, options); // Allow an optional user-specified function to modify the option
-      // object before we construct the xhr request
-      // TODO: Remove beforeRequest in the next major release.
-
-      const beforeRequest = XhrFunction.beforeRequest || videojs.Vhs.xhr.beforeRequest; // onRequest and onResponse hooks as a Set, at either the player or global level.
-      // TODO: new Set added here for beforeRequest alias. Remove this when beforeRequest is removed.
-
-      const _requestCallbackSet = XhrFunction._requestCallbackSet || videojs.Vhs.xhr._requestCallbackSet || new Set();
-      const _responseCallbackSet = XhrFunction._responseCallbackSet || videojs.Vhs.xhr._responseCallbackSet;
-      if (beforeRequest && typeof beforeRequest === 'function') {
-        videojs.log.warn('beforeRequest is deprecated, use onRequest instead.');
-        _requestCallbackSet.add(beforeRequest);
-      } // Use the standard videojs.xhr() method unless `videojs.Vhs.xhr` has been overriden
-      // TODO: switch back to videojs.Vhs.xhr.name === 'XhrFunction' when we drop IE11
-
-      const xhrMethod = videojs.Vhs.xhr.original === true ? videojs.xhr : videojs.Vhs.xhr; // call all registered onRequest hooks, assign new options.
-
-      const beforeRequestOptions = callAllRequestHooks(_requestCallbackSet, options); // Remove the beforeRequest function from the hooks set so stale beforeRequest functions are not called.
-
-      _requestCallbackSet.delete(beforeRequest); // xhrMethod will call XMLHttpRequest.open and XMLHttpRequest.send
-
-      const request = xhrMethod(beforeRequestOptions || options, function (error, response) {
-        // call all registered onResponse hooks
-        callAllResponseHooks(_responseCallbackSet, request, error, response);
-        return callbackWrapper(request, error, response, callback);
-      });
-      const originalAbort = request.abort;
-      request.abort = function () {
-        request.aborted = true;
-        return originalAbort.apply(request, arguments);
-      };
-      request.uri = options.uri;
-      request.requestTime = Date.now();
-      return request;
-    };
-    xhr.original = true;
-    return xhr;
-  };
-  /**
-   * Turns segment byterange into a string suitable for use in
-   * HTTP Range requests
-   *
-   * @param {Object} byterange - an object with two values defining the start and end
-   *                             of a byte-range
-   */
-
-  const byterangeStr = function (byterange) {
-    // `byterangeEnd` is one less than `offset + length` because the HTTP range
-    // header uses inclusive ranges
-    let byterangeEnd;
-    const byterangeStart = byterange.offset;
-    if (typeof byterange.offset === 'bigint' || typeof byterange.length === 'bigint') {
-      byterangeEnd = window.BigInt(byterange.offset) + window.BigInt(byterange.length) - window.BigInt(1);
-    } else {
-      byterangeEnd = byterange.offset + byterange.length - 1;
-    }
-    return 'bytes=' + byterangeStart + '-' + byterangeEnd;
-  };
-  /**
-   * Defines headers for use in the xhr request for a particular segment.
-   *
-   * @param {Object} segment - a simplified copy of the segmentInfo object
-   *                           from SegmentLoader
-   */
-
-  const segmentXhrHeaders = function (segment) {
-    const headers = {};
-    if (segment.byterange) {
-      headers.Range = byterangeStr(segment.byterange);
-    }
-    return headers;
-  };
-
-  /**
-   * @file bin-utils.js
-   */
-
-  /**
-   * convert a TimeRange to text
-   *
-   * @param {TimeRange} range the timerange to use for conversion
-   * @param {number} i the iterator on the range to convert
-   * @return {string} the range in string format
-   */
-
-  const textRange = function (range, i) {
-    return range.start(i) + '-' + range.end(i);
-  };
-  /**
-   * format a number as hex string
-   *
-   * @param {number} e The number
-   * @param {number} i the iterator
-   * @return {string} the hex formatted number as a string
-   */
-
-  const formatHexString = function (e, i) {
-    const value = e.toString(16);
-    return '00'.substring(0, 2 - value.length) + value + (i % 2 ? ' ' : '');
-  };
-  const formatAsciiString = function (e) {
-    if (e >= 0x20 && e < 0x7e) {
-      return String.fromCharCode(e);
-    }
-    return '.';
-  };
-  /**
-   * Creates an object for sending to a web worker modifying properties that are TypedArrays
-   * into a new object with seperated properties for the buffer, byteOffset, and byteLength.
-   *
-   * @param {Object} message
-   *        Object of properties and values to send to the web worker
-   * @return {Object}
-   *         Modified message with TypedArray values expanded
-   * @function createTransferableMessage
-   */
-
-  const createTransferableMessage = function (message) {
-    const transferable = {};
-    Object.keys(message).forEach(key => {
-      const value = message[key];
-      if (isArrayBufferView(value)) {
-        transferable[key] = {
-          bytes: value.buffer,
-          byteOffset: value.byteOffset,
-          byteLength: value.byteLength
-        };
-      } else {
-        transferable[key] = value;
-      }
-    });
-    return transferable;
-  };
-  /**
-   * Returns a unique string identifier for a media initialization
-   * segment.
-   *
-   * @param {Object} initSegment
-   *        the init segment object.
-   *
-   * @return {string} the generated init segment id
-   */
-
-  const initSegmentId = function (initSegment) {
-    const byterange = initSegment.byterange || {
-      length: Infinity,
-      offset: 0
-    };
-    return [byterange.length, byterange.offset, initSegment.resolvedUri].join(',');
-  };
-  /**
-   * Returns a unique string identifier for a media segment key.
-   *
-   * @param {Object} key the encryption key
-   * @return {string} the unique id for the media segment key.
-   */
-
-  const segmentKeyId = function (key) {
-    return key.resolvedUri;
-  };
-  /**
-   * utils to help dump binary data to the console
-   *
-   * @param {Array|TypedArray} data
-   *        data to dump to a string
-   *
-   * @return {string} the data as a hex string.
-   */
-
-  const hexDump = data => {
-    const bytes = Array.prototype.slice.call(data);
-    const step = 16;
-    let result = '';
-    let hex;
-    let ascii;
-    for (let j = 0; j < bytes.length / step; j++) {
-      hex = bytes.slice(j * step, j * step + step).map(formatHexString).join('');
-      ascii = bytes.slice(j * step, j * step + step).map(formatAsciiString).join('');
-      result += hex + ' ' + ascii + '\n';
-    }
-    return result;
-  };
-  const tagDump = ({
-    bytes
-  }) => hexDump(bytes);
-  const textRanges = ranges => {
-    let result = '';
-    let i;
-    for (i = 0; i < ranges.length; i++) {
-      result += textRange(ranges, i) + ' ';
-    }
-    return result;
-  };
-  var utils = /*#__PURE__*/Object.freeze({
-    __proto__: null,
-    createTransferableMessage: createTransferableMessage,
-    initSegmentId: initSegmentId,
-    segmentKeyId: segmentKeyId,
-    hexDump: hexDump,
-    tagDump: tagDump,
-    textRanges: textRanges
-  });
-
-  // TODO handle fmp4 case where the timing info is accurate and doesn't involve transmux
-  // 25% was arbitrarily chosen, and may need to be refined over time.
-
-  const SEGMENT_END_FUDGE_PERCENT = 0.25;
-  /**
-   * Converts a player time (any time that can be gotten/set from player.currentTime(),
-   * e.g., any time within player.seekable().start(0) to player.seekable().end(0)) to a
-   * program time (any time referencing the real world (e.g., EXT-X-PROGRAM-DATE-TIME)).
-   *
-   * The containing segment is required as the EXT-X-PROGRAM-DATE-TIME serves as an "anchor
-   * point" (a point where we have a mapping from program time to player time, with player
-   * time being the post transmux start of the segment).
-   *
-   * For more details, see [this doc](../../docs/program-time-from-player-time.md).
-   *
-   * @param {number} playerTime the player time
-   * @param {Object} segment the segment which contains the player time
-   * @return {Date} program time
-   */
-
-  const playerTimeToProgramTime = (playerTime, segment) => {
-    if (!segment.dateTimeObject) {
-      // Can't convert without an "anchor point" for the program time (i.e., a time that can
-      // be used to map the start of a segment with a real world time).
-      return null;
-    }
-    const transmuxerPrependedSeconds = segment.videoTimingInfo.transmuxerPrependedSeconds;
-    const transmuxedStart = segment.videoTimingInfo.transmuxedPresentationStart; // get the start of the content from before old content is prepended
-
-    const startOfSegment = transmuxedStart + transmuxerPrependedSeconds;
-    const offsetFromSegmentStart = playerTime - startOfSegment;
-    return new Date(segment.dateTimeObject.getTime() + offsetFromSegmentStart * 1000);
-  };
-  const originalSegmentVideoDuration = videoTimingInfo => {
-    return videoTimingInfo.transmuxedPresentationEnd - videoTimingInfo.transmuxedPresentationStart - videoTimingInfo.transmuxerPrependedSeconds;
-  };
-  /**
-   * Finds a segment that contains the time requested given as an ISO-8601 string. The
-   * returned segment might be an estimate or an accurate match.
-   *
-   * @param {string} programTime The ISO-8601 programTime to find a match for
-   * @param {Object} playlist A playlist object to search within
-   */
-
-  const findSegmentForProgramTime = (programTime, playlist) => {
-    // Assumptions:
-    //  - verifyProgramDateTimeTags has already been run
-    //  - live streams have been started
-    let dateTimeObject;
-    try {
-      dateTimeObject = new Date(programTime);
-    } catch (e) {
-      return null;
-    }
-    if (!playlist || !playlist.segments || playlist.segments.length === 0) {
-      return null;
-    }
-    let segment = playlist.segments[0];
-    if (dateTimeObject < new Date(segment.dateTimeObject)) {
-      // Requested time is before stream start.
-      return null;
-    }
-    for (let i = 0; i < playlist.segments.length - 1; i++) {
-      segment = playlist.segments[i];
-      const nextSegmentStart = new Date(playlist.segments[i + 1].dateTimeObject);
-      if (dateTimeObject < nextSegmentStart) {
-        break;
-      }
-    }
-    const lastSegment = playlist.segments[playlist.segments.length - 1];
-    const lastSegmentStart = lastSegment.dateTimeObject;
-    const lastSegmentDuration = lastSegment.videoTimingInfo ? originalSegmentVideoDuration(lastSegment.videoTimingInfo) : lastSegment.duration + lastSegment.duration * SEGMENT_END_FUDGE_PERCENT;
-    const lastSegmentEnd = new Date(lastSegmentStart.getTime() + lastSegmentDuration * 1000);
-    if (dateTimeObject > lastSegmentEnd) {
-      // Beyond the end of the stream, or our best guess of the end of the stream.
-      return null;
-    }
-    if (dateTimeObject > new Date(lastSegmentStart)) {
-      segment = lastSegment;
-    }
-    return {
-      segment,
-      estimatedStart: segment.videoTimingInfo ? segment.videoTimingInfo.transmuxedPresentationStart : Playlist.duration(playlist, playlist.mediaSequence + playlist.segments.indexOf(segment)),
-      // Although, given that all segments have accurate date time objects, the segment
-      // selected should be accurate, unless the video has been transmuxed at some point
-      // (determined by the presence of the videoTimingInfo object), the segment's "player
-      // time" (the start time in the player) can't be considered accurate.
-      type: segment.videoTimingInfo ? 'accurate' : 'estimate'
-    };
-  };
-  /**
-   * Finds a segment that contains the given player time(in seconds).
-   *
-   * @param {number} time The player time to find a match for
-   * @param {Object} playlist A playlist object to search within
-   */
-
-  const findSegmentForPlayerTime = (time, playlist) => {
-    // Assumptions:
-    // - there will always be a segment.duration
-    // - we can start from zero
-    // - segments are in time order
-    if (!playlist || !playlist.segments || playlist.segments.length === 0) {
-      return null;
-    }
-    let segmentEnd = 0;
-    let segment;
-    for (let i = 0; i < playlist.segments.length; i++) {
-      segment = playlist.segments[i]; // videoTimingInfo is set after the segment is downloaded and transmuxed, and
-      // should contain the most accurate values we have for the segment's player times.
-      //
-      // Use the accurate transmuxedPresentationEnd value if it is available, otherwise fall
-      // back to an estimate based on the manifest derived (inaccurate) segment.duration, to
-      // calculate an end value.
-
-      segmentEnd = segment.videoTimingInfo ? segment.videoTimingInfo.transmuxedPresentationEnd : segmentEnd + segment.duration;
-      if (time <= segmentEnd) {
-        break;
-      }
-    }
-    const lastSegment = playlist.segments[playlist.segments.length - 1];
-    if (lastSegment.videoTimingInfo && lastSegment.videoTimingInfo.transmuxedPresentationEnd < time) {
-      // The time requested is beyond the stream end.
-      return null;
-    }
-    if (time > segmentEnd) {
-      // The time is within or beyond the last segment.
-      //
-      // Check to see if the time is beyond a reasonable guess of the end of the stream.
-      if (time > segmentEnd + lastSegment.duration * SEGMENT_END_FUDGE_PERCENT) {
-        // Technically, because the duration value is only an estimate, the time may still
-        // exist in the last segment, however, there isn't enough information to make even
-        // a reasonable estimate.
-        return null;
-      }
-      segment = lastSegment;
-    }
-    return {
-      segment,
-      estimatedStart: segment.videoTimingInfo ? segment.videoTimingInfo.transmuxedPresentationStart : segmentEnd - segment.duration,
-      // Because videoTimingInfo is only set after transmux, it is the only way to get
-      // accurate timing values.
-      type: segment.videoTimingInfo ? 'accurate' : 'estimate'
-    };
-  };
-  /**
-   * Gives the offset of the comparisonTimestamp from the programTime timestamp in seconds.
-   * If the offset returned is positive, the programTime occurs after the
-   * comparisonTimestamp.
-   * If the offset is negative, the programTime occurs before the comparisonTimestamp.
-   *
-   * @param {string} comparisonTimeStamp An ISO-8601 timestamp to compare against
-   * @param {string} programTime The programTime as an ISO-8601 string
-   * @return {number} offset
-   */
-
-  const getOffsetFromTimestamp = (comparisonTimeStamp, programTime) => {
-    let segmentDateTime;
-    let programDateTime;
-    try {
-      segmentDateTime = new Date(comparisonTimeStamp);
-      programDateTime = new Date(programTime);
-    } catch (e) {// TODO handle error
-    }
-    const segmentTimeEpoch = segmentDateTime.getTime();
-    const programTimeEpoch = programDateTime.getTime();
-    return (programTimeEpoch - segmentTimeEpoch) / 1000;
-  };
-  /**
-   * Checks that all segments in this playlist have programDateTime tags.
-   *
-   * @param {Object} playlist A playlist object
-   */
-
-  const verifyProgramDateTimeTags = playlist => {
-    if (!playlist.segments || playlist.segments.length === 0) {
-      return false;
-    }
-    for (let i = 0; i < playlist.segments.length; i++) {
-      const segment = playlist.segments[i];
-      if (!segment.dateTimeObject) {
-        return false;
-      }
-    }
-    return true;
-  };
-  /**
-   * Returns the programTime of the media given a playlist and a playerTime.
-   * The playlist must have programDateTime tags for a programDateTime tag to be returned.
-   * If the segments containing the time requested have not been buffered yet, an estimate
-   * may be returned to the callback.
-   *
-   * @param {Object} args
-   * @param {Object} args.playlist A playlist object to search within
-   * @param {number} time A playerTime in seconds
-   * @param {Function} callback(err, programTime)
-   * @return {string} err.message A detailed error message
-   * @return {Object} programTime
-   * @return {number} programTime.mediaSeconds The streamTime in seconds
-   * @return {string} programTime.programDateTime The programTime as an ISO-8601 String
-   */
-
-  const getProgramTime = ({
-    playlist,
-    time = undefined,
-    callback
-  }) => {
-    if (!callback) {
-      throw new Error('getProgramTime: callback must be provided');
-    }
-    if (!playlist || time === undefined) {
-      return callback({
-        message: 'getProgramTime: playlist and time must be provided'
-      });
-    }
-    const matchedSegment = findSegmentForPlayerTime(time, playlist);
-    if (!matchedSegment) {
-      return callback({
-        message: 'valid programTime was not found'
-      });
-    }
-    if (matchedSegment.type === 'estimate') {
-      return callback({
-        message: 'Accurate programTime could not be determined.' + ' Please seek to e.seekTime and try again',
-        seekTime: matchedSegment.estimatedStart
-      });
-    }
-    const programTimeObject = {
-      mediaSeconds: time
-    };
-    const programTime = playerTimeToProgramTime(time, matchedSegment.segment);
-    if (programTime) {
-      programTimeObject.programDateTime = programTime.toISOString();
-    }
-    return callback(null, programTimeObject);
-  };
-  /**
-   * Seeks in the player to a time that matches the given programTime ISO-8601 string.
-   *
-   * @param {Object} args
-   * @param {string} args.programTime A programTime to seek to as an ISO-8601 String
-   * @param {Object} args.playlist A playlist to look within
-   * @param {number} args.retryCount The number of times to try for an accurate seek. Default is 2.
-   * @param {Function} args.seekTo A method to perform a seek
-   * @param {boolean} args.pauseAfterSeek Whether to end in a paused state after seeking. Default is true.
-   * @param {Object} args.tech The tech to seek on
-   * @param {Function} args.callback(err, newTime) A callback to return the new time to
-   * @return {string} err.message A detailed error message
-   * @return {number} newTime The exact time that was seeked to in seconds
-   */
-
-  const seekToProgramTime = ({
-    programTime,
-    playlist,
-    retryCount = 2,
-    seekTo,
-    pauseAfterSeek = true,
-    tech,
-    callback
-  }) => {
-    if (!callback) {
-      throw new Error('seekToProgramTime: callback must be provided');
-    }
-    if (typeof programTime === 'undefined' || !playlist || !seekTo) {
-      return callback({
-        message: 'seekToProgramTime: programTime, seekTo and playlist must be provided'
-      });
-    }
-    if (!playlist.endList && !tech.hasStarted_) {
-      return callback({
-        message: 'player must be playing a live stream to start buffering'
-      });
-    }
-    if (!verifyProgramDateTimeTags(playlist)) {
-      return callback({
-        message: 'programDateTime tags must be provided in the manifest ' + playlist.resolvedUri
-      });
-    }
-    const matchedSegment = findSegmentForProgramTime(programTime, playlist); // no match
-
-    if (!matchedSegment) {
-      return callback({
-        message: `${programTime} was not found in the stream`
-      });
-    }
-    const segment = matchedSegment.segment;
-    const mediaOffset = getOffsetFromTimestamp(segment.dateTimeObject, programTime);
-    if (matchedSegment.type === 'estimate') {
-      // we've run out of retries
-      if (retryCount === 0) {
-        return callback({
-          message: `${programTime} is not buffered yet. Try again`
-        });
-      }
-      seekTo(matchedSegment.estimatedStart + mediaOffset);
-      tech.one('seeked', () => {
-        seekToProgramTime({
-          programTime,
-          playlist,
-          retryCount: retryCount - 1,
-          seekTo,
-          pauseAfterSeek,
-          tech,
-          callback
-        });
-      });
-      return;
-    } // Since the segment.start value is determined from the buffered end or ending time
-    // of the prior segment, the seekToTime doesn't need to account for any transmuxer
-    // modifications.
-
-    const seekToTime = segment.start + mediaOffset;
-    const seekedCallback = () => {
-      return callback(null, tech.currentTime());
-    }; // listen for seeked event
-
-    tech.one('seeked', seekedCallback); // pause before seeking as video.js will restore this state
-
-    if (pauseAfterSeek) {
-      tech.pause();
-    }
-    seekTo(seekToTime);
-  };
-
-  // which will only happen if the request is complete.
-
-  const callbackOnCompleted = (request, cb) => {
-    if (request.readyState === 4) {
-      return cb();
-    }
-    return;
-  };
-  const containerRequest = (uri, xhr, cb) => {
-    let bytes = [];
-    let id3Offset;
-    let finished = false;
-    const endRequestAndCallback = function (err, req, type, _bytes) {
-      req.abort();
-      finished = true;
-      return cb(err, req, type, _bytes);
-    };
-    const progressListener = function (error, request) {
-      if (finished) {
-        return;
-      }
-      if (error) {
-        return endRequestAndCallback(error, request, '', bytes);
-      } // grap the new part of content that was just downloaded
-
-      const newPart = request.responseText.substring(bytes && bytes.byteLength || 0, request.responseText.length); // add that onto bytes
-
-      bytes = concatTypedArrays(bytes, stringToBytes(newPart, true));
-      id3Offset = id3Offset || getId3Offset(bytes); // we need at least 10 bytes to determine a type
-      // or we need at least two bytes after an id3Offset
-
-      if (bytes.length < 10 || id3Offset && bytes.length < id3Offset + 2) {
-        return callbackOnCompleted(request, () => endRequestAndCallback(error, request, '', bytes));
-      }
-      const type = detectContainerForBytes(bytes); // if this looks like a ts segment but we don't have enough data
-      // to see the second sync byte, wait until we have enough data
-      // before declaring it ts
-
-      if (type === 'ts' && bytes.length < 188) {
-        return callbackOnCompleted(request, () => endRequestAndCallback(error, request, '', bytes));
-      } // this may be an unsynced ts segment
-      // wait for 376 bytes before detecting no container
-
-      if (!type && bytes.length < 376) {
-        return callbackOnCompleted(request, () => endRequestAndCallback(error, request, '', bytes));
-      }
-      return endRequestAndCallback(null, request, type, bytes);
-    };
-    const options = {
-      uri,
-      beforeSend(request) {
-        // this forces the browser to pass the bytes to us unprocessed
-        request.overrideMimeType('text/plain; charset=x-user-defined');
-        request.addEventListener('progress', function ({
-          total,
-          loaded
-        }) {
-          return callbackWrapper(request, null, {
-            statusCode: request.status
-          }, progressListener);
-        });
-      }
-    };
-    const request = xhr(options, function (error, response) {
-      return callbackWrapper(request, error, response, progressListener);
-    });
-    return request;
-  };
-  const {
-    EventTarget
-  } = videojs;
-  const dashPlaylistUnchanged = function (a, b) {
-    if (!isPlaylistUnchanged(a, b)) {
-      return false;
-    } // for dash the above check will often return true in scenarios where
-    // the playlist actually has changed because mediaSequence isn't a
-    // dash thing, and we often set it to 1. So if the playlists have the same amount
-    // of segments we return true.
-    // So for dash we need to make sure that the underlying segments are different.
-    // if sidx changed then the playlists are different.
-
-    if (a.sidx && b.sidx && (a.sidx.offset !== b.sidx.offset || a.sidx.length !== b.sidx.length)) {
-      return false;
-    } else if (!a.sidx && b.sidx || a.sidx && !b.sidx) {
-      return false;
-    } // one or the other does not have segments
-    // there was a change.
-
-    if (a.segments && !b.segments || !a.segments && b.segments) {
-      return false;
-    } // neither has segments nothing changed
-
-    if (!a.segments && !b.segments) {
-      return true;
-    } // check segments themselves
-
-    for (let i = 0; i < a.segments.length; i++) {
-      const aSegment = a.segments[i];
-      const bSegment = b.segments[i]; // if uris are different between segments there was a change
-
-      if (aSegment.uri !== bSegment.uri) {
-        return false;
-      } // neither segment has a byterange, there will be no byterange change.
-
-      if (!aSegment.byterange && !bSegment.byterange) {
-        continue;
-      }
-      const aByterange = aSegment.byterange;
-      const bByterange = bSegment.byterange; // if byterange only exists on one of the segments, there was a change.
-
-      if (aByterange && !bByterange || !aByterange && bByterange) {
-        return false;
-      } // if both segments have byterange with different offsets, there was a change.
-
-      if (aByterange.offset !== bByterange.offset || aByterange.length !== bByterange.length) {
-        return false;
-      }
-    } // if everything was the same with segments, this is the same playlist.
-
-    return true;
-  };
-  /**
-   * Use the representation IDs from the mpd object to create groupIDs, the NAME is set to mandatory representation
-   * ID in the parser. This allows for continuous playout across periods with the same representation IDs
-   * (continuous periods as defined in DASH-IF 3.2.12). This is assumed in the mpd-parser as well. If we want to support
-   * periods without continuous playback this function may need modification as well as the parser.
-   */
-
-  const dashGroupId = (type, group, label, playlist) => {
-    // If the manifest somehow does not have an ID (non-dash compliant), use the label.
-    const playlistId = playlist.attributes.NAME || label;
-    return `placeholder-uri-${type}-${group}-${playlistId}`;
-  };
-  /**
-   * Parses the main XML string and updates playlist URI references.
-   *
-   * @param {Object} config
-   *        Object of arguments
-   * @param {string} config.mainXml
-   *        The mpd XML
-   * @param {string} config.srcUrl
-   *        The mpd URL
-   * @param {Date} config.clientOffset
-   *         A time difference between server and client
-   * @param {Object} config.sidxMapping
-   *        SIDX mappings for moof/mdat URIs and byte ranges
-   * @return {Object}
-   *         The parsed mpd manifest object
-   */
-
-  const parseMainXml = ({
-    mainXml,
-    srcUrl,
-    clientOffset,
-    sidxMapping,
-    previousManifest
-  }) => {
-    const manifest = parse(mainXml, {
-      manifestUri: srcUrl,
-      clientOffset,
-      sidxMapping,
-      previousManifest
-    });
-    addPropertiesToMain(manifest, srcUrl, dashGroupId);
-    return manifest;
-  };
-  /**
-   * Removes any mediaGroup labels that no longer exist in the newMain
-   *
-   * @param {Object} update
-   *         The previous mpd object being updated
-   * @param {Object} newMain
-   *         The new mpd object
-   */
-
-  const removeOldMediaGroupLabels = (update, newMain) => {
-    forEachMediaGroup(update, (properties, type, group, label) => {
-      if (!(label in newMain.mediaGroups[type][group])) {
-        delete update.mediaGroups[type][group][label];
-      }
-    });
-  };
-  /**
-   * Returns a new main manifest that is the result of merging an updated main manifest
-   * into the original version.
-   *
-   * @param {Object} oldMain
-   *        The old parsed mpd object
-   * @param {Object} newMain
-   *        The updated parsed mpd object
-   * @return {Object}
-   *         A new object representing the original main manifest with the updated media
-   *         playlists merged in
-   */
-
-  const updateMain = (oldMain, newMain, sidxMapping) => {
-    let noChanges = true;
-    let update = merge(oldMain, {
-      // These are top level properties that can be updated
-      duration: newMain.duration,
-      minimumUpdatePeriod: newMain.minimumUpdatePeriod,
-      timelineStarts: newMain.timelineStarts
-    }); // First update the playlists in playlist list
-
-    for (let i = 0; i < newMain.playlists.length; i++) {
-      const playlist = newMain.playlists[i];
-      if (playlist.sidx) {
-        const sidxKey = generateSidxKey(playlist.sidx); // add sidx segments to the playlist if we have all the sidx info already
-
-        if (sidxMapping && sidxMapping[sidxKey] && sidxMapping[sidxKey].sidx) {
-          addSidxSegmentsToPlaylist$1(playlist, sidxMapping[sidxKey].sidx, playlist.sidx.resolvedUri);
-        }
-      }
-      const playlistUpdate = updateMain$1(update, playlist, dashPlaylistUnchanged);
-      if (playlistUpdate) {
-        update = playlistUpdate;
-        noChanges = false;
-      }
-    } // Then update media group playlists
-
-    forEachMediaGroup(newMain, (properties, type, group, label) => {
-      if (properties.playlists && properties.playlists.length) {
-        const id = properties.playlists[0].id;
-        const playlistUpdate = updateMain$1(update, properties.playlists[0], dashPlaylistUnchanged);
-        if (playlistUpdate) {
-          update = playlistUpdate; // add new mediaGroup label if it doesn't exist and assign the new mediaGroup.
-
-          if (!(label in update.mediaGroups[type][group])) {
-            update.mediaGroups[type][group][label] = properties;
-          } // update the playlist reference within media groups
-
-          update.mediaGroups[type][group][label].playlists[0] = update.playlists[id];
-          noChanges = false;
-        }
-      }
-    }); // remove mediaGroup labels and references that no longer exist in the newMain
-
-    removeOldMediaGroupLabels(update, newMain);
-    if (newMain.minimumUpdatePeriod !== oldMain.minimumUpdatePeriod) {
-      noChanges = false;
-    }
-    if (noChanges) {
-      return null;
-    }
-    return update;
-  }; // SIDX should be equivalent if the URI and byteranges of the SIDX match.
-  // If the SIDXs have maps, the two maps should match,
-  // both `a` and `b` missing SIDXs is considered matching.
-  // If `a` or `b` but not both have a map, they aren't matching.
-
-  const equivalentSidx = (a, b) => {
-    const neitherMap = Boolean(!a.map && !b.map);
-    const equivalentMap = neitherMap || Boolean(a.map && b.map && a.map.byterange.offset === b.map.byterange.offset && a.map.byterange.length === b.map.byterange.length);
-    return equivalentMap && a.uri === b.uri && a.byterange.offset === b.byterange.offset && a.byterange.length === b.byterange.length;
-  }; // exported for testing
-
-  const compareSidxEntry = (playlists, oldSidxMapping) => {
-    const newSidxMapping = {};
-    for (const id in playlists) {
-      const playlist = playlists[id];
-      const currentSidxInfo = playlist.sidx;
-      if (currentSidxInfo) {
-        const key = generateSidxKey(currentSidxInfo);
-        if (!oldSidxMapping[key]) {
-          break;
-        }
-        const savedSidxInfo = oldSidxMapping[key].sidxInfo;
-        if (equivalentSidx(savedSidxInfo, currentSidxInfo)) {
-          newSidxMapping[key] = oldSidxMapping[key];
-        }
-      }
-    }
-    return newSidxMapping;
-  };
-  /**
-   *  A function that filters out changed items as they need to be requested separately.
-   *
-   *  The method is exported for testing
-   *
-   *  @param {Object} main the parsed mpd XML returned via mpd-parser
-   *  @param {Object} oldSidxMapping the SIDX to compare against
-   */
-
-  const filterChangedSidxMappings = (main, oldSidxMapping) => {
-    const videoSidx = compareSidxEntry(main.playlists, oldSidxMapping);
-    let mediaGroupSidx = videoSidx;
-    forEachMediaGroup(main, (properties, mediaType, groupKey, labelKey) => {
-      if (properties.playlists && properties.playlists.length) {
-        const playlists = properties.playlists;
-        mediaGroupSidx = merge(mediaGroupSidx, compareSidxEntry(playlists, oldSidxMapping));
-      }
-    });
-    return mediaGroupSidx;
-  };
-  class DashPlaylistLoader extends EventTarget {
-    // DashPlaylistLoader must accept either a src url or a playlist because subsequent
-    // playlist loader setups from media groups will expect to be able to pass a playlist
-    // (since there aren't external URLs to media playlists with DASH)
-    constructor(srcUrlOrPlaylist, vhs, options = {}, mainPlaylistLoader) {
-      super();
-      this.mainPlaylistLoader_ = mainPlaylistLoader || this;
-      if (!mainPlaylistLoader) {
-        this.isMain_ = true;
-      }
-      const {
-        withCredentials = false
-      } = options;
-      this.vhs_ = vhs;
-      this.withCredentials = withCredentials;
-      this.addMetadataToTextTrack = options.addMetadataToTextTrack;
-      if (!srcUrlOrPlaylist) {
-        throw new Error('A non-empty playlist URL or object is required');
-      } // event naming?
-
-      this.on('minimumUpdatePeriod', () => {
-        this.refreshXml_();
-      }); // live playlist staleness timeout
-
-      this.on('mediaupdatetimeout', () => {
-        this.refreshMedia_(this.media().id);
-      });
-      this.state = 'HAVE_NOTHING';
-      this.loadedPlaylists_ = {};
-      this.logger_ = logger('DashPlaylistLoader'); // initialize the loader state
-      // The mainPlaylistLoader will be created with a string
-
-      if (this.isMain_) {
-        this.mainPlaylistLoader_.srcUrl = srcUrlOrPlaylist; // TODO: reset sidxMapping between period changes
-        // once multi-period is refactored
-
-        this.mainPlaylistLoader_.sidxMapping_ = {};
-      } else {
-        this.childPlaylist_ = srcUrlOrPlaylist;
-      }
-    }
-    requestErrored_(err, request, startingState) {
-      // disposed
-      if (!this.request) {
-        return true;
-      } // pending request is cleared
-
-      this.request = null;
-      if (err) {
-        // use the provided error object or create one
-        // based on the request/response
-        this.error = typeof err === 'object' && !(err instanceof Error) ? err : {
-          status: request.status,
-          message: 'DASH request error at URL: ' + request.uri,
-          response: request.response,
-          // MEDIA_ERR_NETWORK
-          code: 2,
-          metadata: err.metadata
-        };
-        if (startingState) {
-          this.state = startingState;
-        }
-        this.trigger('error');
-        return true;
-      }
-    }
-    /**
-     * Verify that the container of the sidx segment can be parsed
-     * and if it can, get and parse that segment.
-     */
-
-    addSidxSegments_(playlist, startingState, cb) {
-      const sidxKey = playlist.sidx && generateSidxKey(playlist.sidx); // playlist lacks sidx or sidx segments were added to this playlist already.
-
-      if (!playlist.sidx || !sidxKey || this.mainPlaylistLoader_.sidxMapping_[sidxKey]) {
-        // keep this function async
-        this.mediaRequest_ = window.setTimeout(() => cb(false), 0);
-        return;
-      } // resolve the segment URL relative to the playlist
-
-      const uri = resolveManifestRedirect(playlist.sidx.resolvedUri);
-      const fin = (err, request) => {
-        // TODO: add error metdata here once we create an error type in video.js
-        if (this.requestErrored_(err, request, startingState)) {
-          return;
-        }
-        const sidxMapping = this.mainPlaylistLoader_.sidxMapping_;
-        let sidx;
-        try {
-          sidx = parseSidx_1(toUint8(request.response).subarray(8));
-        } catch (e) {
-          e.metadata = {
-            errorType: videojs.Error.DashManifestSidxParsingError
-          }; // sidx parsing failed.
-
-          this.requestErrored_(e, request, startingState);
-          return;
-        }
-        sidxMapping[sidxKey] = {
-          sidxInfo: playlist.sidx,
-          sidx
-        };
-        addSidxSegmentsToPlaylist$1(playlist, sidx, playlist.sidx.resolvedUri);
-        return cb(true);
-      };
-      this.request = containerRequest(uri, this.vhs_.xhr, (err, request, container, bytes) => {
-        if (err) {
-          return fin(err, request);
-        }
-        if (!container || container !== 'mp4') {
-          const sidxContainer = container || 'unknown';
-          return fin({
-            status: request.status,
-            message: `Unsupported ${sidxContainer} container type for sidx segment at URL: ${uri}`,
-            // response is just bytes in this case
-            // but we really don't want to return that.
-            response: '',
-            playlist,
-            internal: true,
-            playlistExclusionDuration: Infinity,
-            // MEDIA_ERR_NETWORK
-            code: 2,
-            metadata: {
-              errorType: videojs.Error.UnsupportedSidxContainer,
-              sidxContainer
-            }
-          }, request);
-        } // if we already downloaded the sidx bytes in the container request, use them
-
-        const {
-          offset,
-          length
-        } = playlist.sidx.byterange;
-        if (bytes.length >= length + offset) {
-          return fin(err, {
-            response: bytes.subarray(offset, offset + length),
-            status: request.status,
-            uri: request.uri
-          });
-        } // otherwise request sidx bytes
-
-        this.request = this.vhs_.xhr({
-          uri,
-          responseType: 'arraybuffer',
-          headers: segmentXhrHeaders({
-            byterange: playlist.sidx.byterange
-          })
-        }, fin);
-      });
-    }
-    dispose() {
-      this.trigger('dispose');
-      this.stopRequest();
-      this.loadedPlaylists_ = {};
-      window.clearTimeout(this.minimumUpdatePeriodTimeout_);
-      window.clearTimeout(this.mediaRequest_);
-      window.clearTimeout(this.mediaUpdateTimeout);
-      this.mediaUpdateTimeout = null;
-      this.mediaRequest_ = null;
-      this.minimumUpdatePeriodTimeout_ = null;
-      if (this.mainPlaylistLoader_.createMupOnMedia_) {
-        this.off('loadedmetadata', this.mainPlaylistLoader_.createMupOnMedia_);
-        this.mainPlaylistLoader_.createMupOnMedia_ = null;
-      }
-      this.off();
-    }
-    hasPendingRequest() {
-      return this.request || this.mediaRequest_;
-    }
-    stopRequest() {
-      if (this.request) {
-        const oldRequest = this.request;
-        this.request = null;
-        oldRequest.onreadystatechange = null;
-        oldRequest.abort();
-      }
-    }
-    media(playlist) {
-      // getter
-      if (!playlist) {
-        return this.media_;
-      } // setter
-
-      if (this.state === 'HAVE_NOTHING') {
-        throw new Error('Cannot switch media playlist from ' + this.state);
-      }
-      const startingState = this.state; // find the playlist object if the target playlist has been specified by URI
-
-      if (typeof playlist === 'string') {
-        if (!this.mainPlaylistLoader_.main.playlists[playlist]) {
-          throw new Error('Unknown playlist URI: ' + playlist);
-        }
-        playlist = this.mainPlaylistLoader_.main.playlists[playlist];
-      }
-      const mediaChange = !this.media_ || playlist.id !== this.media_.id; // switch to previously loaded playlists immediately
-
-      if (mediaChange && this.loadedPlaylists_[playlist.id] && this.loadedPlaylists_[playlist.id].endList) {
-        this.state = 'HAVE_METADATA';
-        this.media_ = playlist; // trigger media change if the active media has been updated
-
-        if (mediaChange) {
-          this.trigger('mediachanging');
-          this.trigger('mediachange');
-        }
-        return;
-      } // switching to the active playlist is a no-op
-
-      if (!mediaChange) {
-        return;
-      } // switching from an already loaded playlist
-
-      if (this.media_) {
-        this.trigger('mediachanging');
-      }
-      this.addSidxSegments_(playlist, startingState, sidxChanged => {
-        // everything is ready just continue to haveMetadata
-        this.haveMetadata({
-          startingState,
-          playlist
-        });
-      });
-    }
-    haveMetadata({
-      startingState,
-      playlist
-    }) {
-      this.state = 'HAVE_METADATA';
-      this.loadedPlaylists_[playlist.id] = playlist;
-      this.mediaRequest_ = null; // This will trigger loadedplaylist
-
-      this.refreshMedia_(playlist.id); // fire loadedmetadata the first time a media playlist is loaded
-      // to resolve setup of media groups
-
-      if (startingState === 'HAVE_MAIN_MANIFEST') {
-        this.trigger('loadedmetadata');
-      } else {
-        // trigger media change if the active media has been updated
-        this.trigger('mediachange');
-      }
-    }
-    pause() {
-      if (this.mainPlaylistLoader_.createMupOnMedia_) {
-        this.off('loadedmetadata', this.mainPlaylistLoader_.createMupOnMedia_);
-        this.mainPlaylistLoader_.createMupOnMedia_ = null;
-      }
-      this.stopRequest();
-      window.clearTimeout(this.mediaUpdateTimeout);
-      this.mediaUpdateTimeout = null;
-      if (this.isMain_) {
-        window.clearTimeout(this.mainPlaylistLoader_.minimumUpdatePeriodTimeout_);
-        this.mainPlaylistLoader_.minimumUpdatePeriodTimeout_ = null;
-      }
-      if (this.state === 'HAVE_NOTHING') {
-        // If we pause the loader before any data has been retrieved, its as if we never
-        // started, so reset to an unstarted state.
-        this.started = false;
-      }
-    }
-    load(isFinalRendition) {
-      window.clearTimeout(this.mediaUpdateTimeout);
-      this.mediaUpdateTimeout = null;
-      const media = this.media();
-      if (isFinalRendition) {
-        const delay = media ? media.targetDuration / 2 * 1000 : 5 * 1000;
-        this.mediaUpdateTimeout = window.setTimeout(() => this.load(), delay);
-        return;
-      } // because the playlists are internal to the manifest, load should either load the
-      // main manifest, or do nothing but trigger an event
-
-      if (!this.started) {
-        this.start();
-        return;
-      }
-      if (media && !media.endList) {
-        // Check to see if this is the main loader and the MUP was cleared (this happens
-        // when the loader was paused). `media` should be set at this point since one is always
-        // set during `start()`.
-        if (this.isMain_ && !this.minimumUpdatePeriodTimeout_) {
-          // Trigger minimumUpdatePeriod to refresh the main manifest
-          this.trigger('minimumUpdatePeriod'); // Since there was no prior minimumUpdatePeriodTimeout it should be recreated
-
-          this.updateMinimumUpdatePeriodTimeout_();
-        }
-        this.trigger('mediaupdatetimeout');
-      } else {
-        this.trigger('loadedplaylist');
-      }
-    }
-    start() {
-      this.started = true; // We don't need to request the main manifest again
-      // Call this asynchronously to match the xhr request behavior below
-
-      if (!this.isMain_) {
-        this.mediaRequest_ = window.setTimeout(() => this.haveMain_(), 0);
-        return;
-      }
-      this.requestMain_((req, mainChanged) => {
-        this.haveMain_();
-        if (!this.hasPendingRequest() && !this.media_) {
-          this.media(this.mainPlaylistLoader_.main.playlists[0]);
-        }
-      });
-    }
-    requestMain_(cb) {
-      this.request = this.vhs_.xhr({
-        uri: this.mainPlaylistLoader_.srcUrl,
-        withCredentials: this.withCredentials,
-        requestType: 'dash-manifest'
-      }, (error, req) => {
-        if (this.requestErrored_(error, req)) {
-          if (this.state === 'HAVE_NOTHING') {
-            this.started = false;
-          }
-          return;
-        }
-        const mainChanged = req.responseText !== this.mainPlaylistLoader_.mainXml_;
-        this.mainPlaylistLoader_.mainXml_ = req.responseText;
-        if (req.responseHeaders && req.responseHeaders.date) {
-          this.mainLoaded_ = Date.parse(req.responseHeaders.date);
-        } else {
-          this.mainLoaded_ = Date.now();
-        }
-        this.mainPlaylistLoader_.srcUrl = resolveManifestRedirect(this.mainPlaylistLoader_.srcUrl, req);
-        if (mainChanged) {
-          this.handleMain_();
-          this.syncClientServerClock_(() => {
-            return cb(req, mainChanged);
-          });
-          return;
-        }
-        return cb(req, mainChanged);
-      });
-    }
-    /**
-     * Parses the main xml for UTCTiming node to sync the client clock to the server
-     * clock. If the UTCTiming node requires a HEAD or GET request, that request is made.
-     *
-     * @param {Function} done
-     *        Function to call when clock sync has completed
-     */
-
-    syncClientServerClock_(done) {
-      const utcTiming = parseUTCTiming(this.mainPlaylistLoader_.mainXml_); // No UTCTiming element found in the mpd. Use Date header from mpd request as the
-      // server clock
-
-      if (utcTiming === null) {
-        this.mainPlaylistLoader_.clientOffset_ = this.mainLoaded_ - Date.now();
-        return done();
-      }
-      if (utcTiming.method === 'DIRECT') {
-        this.mainPlaylistLoader_.clientOffset_ = utcTiming.value - Date.now();
-        return done();
-      }
-      this.request = this.vhs_.xhr({
-        uri: resolveUrl(this.mainPlaylistLoader_.srcUrl, utcTiming.value),
-        method: utcTiming.method,
-        withCredentials: this.withCredentials,
-        requestType: 'dash-clock-sync'
-      }, (error, req) => {
-        // disposed
-        if (!this.request) {
-          return;
-        }
-        if (error) {
-          // sync request failed, fall back to using date header from mpd
-          // TODO: log warning
-          this.mainPlaylistLoader_.clientOffset_ = this.mainLoaded_ - Date.now();
-          return done();
-        }
-        let serverTime;
-        if (utcTiming.method === 'HEAD') {
-          if (!req.responseHeaders || !req.responseHeaders.date) {
-            // expected date header not preset, fall back to using date header from mpd
-            // TODO: log warning
-            serverTime = this.mainLoaded_;
-          } else {
-            serverTime = Date.parse(req.responseHeaders.date);
-          }
-        } else {
-          serverTime = Date.parse(req.responseText);
-        }
-        this.mainPlaylistLoader_.clientOffset_ = serverTime - Date.now();
-        done();
-      });
-    }
-    haveMain_() {
-      this.state = 'HAVE_MAIN_MANIFEST';
-      if (this.isMain_) {
-        // We have the main playlist at this point, so
-        // trigger this to allow PlaylistController
-        // to make an initial playlist selection
-        this.trigger('loadedplaylist');
-      } else if (!this.media_) {
-        // no media playlist was specifically selected so select
-        // the one the child playlist loader was created with
-        this.media(this.childPlaylist_);
-      }
-    }
-    handleMain_() {
-      // clear media request
-      this.mediaRequest_ = null;
-      const oldMain = this.mainPlaylistLoader_.main;
-      let newMain = parseMainXml({
-        mainXml: this.mainPlaylistLoader_.mainXml_,
-        srcUrl: this.mainPlaylistLoader_.srcUrl,
-        clientOffset: this.mainPlaylistLoader_.clientOffset_,
-        sidxMapping: this.mainPlaylistLoader_.sidxMapping_,
-        previousManifest: oldMain
-      }); // if we have an old main to compare the new main against
-
-      if (oldMain) {
-        newMain = updateMain(oldMain, newMain, this.mainPlaylistLoader_.sidxMapping_);
-      } // only update main if we have a new main
-
-      this.mainPlaylistLoader_.main = newMain ? newMain : oldMain;
-      const location = this.mainPlaylistLoader_.main.locations && this.mainPlaylistLoader_.main.locations[0];
-      if (location && location !== this.mainPlaylistLoader_.srcUrl) {
-        this.mainPlaylistLoader_.srcUrl = location;
-      }
-      if (!oldMain || newMain && newMain.minimumUpdatePeriod !== oldMain.minimumUpdatePeriod) {
-        this.updateMinimumUpdatePeriodTimeout_();
-      }
-      this.addEventStreamToMetadataTrack_(newMain);
-      return Boolean(newMain);
-    }
-    updateMinimumUpdatePeriodTimeout_() {
-      const mpl = this.mainPlaylistLoader_; // cancel any pending creation of mup on media
-      // a new one will be added if needed.
-
-      if (mpl.createMupOnMedia_) {
-        mpl.off('loadedmetadata', mpl.createMupOnMedia_);
-        mpl.createMupOnMedia_ = null;
-      } // clear any pending timeouts
-
-      if (mpl.minimumUpdatePeriodTimeout_) {
-        window.clearTimeout(mpl.minimumUpdatePeriodTimeout_);
-        mpl.minimumUpdatePeriodTimeout_ = null;
-      }
-      let mup = mpl.main && mpl.main.minimumUpdatePeriod; // If the minimumUpdatePeriod has a value of 0, that indicates that the current
-      // MPD has no future validity, so a new one will need to be acquired when new
-      // media segments are to be made available. Thus, we use the target duration
-      // in this case
-
-      if (mup === 0) {
-        if (mpl.media()) {
-          mup = mpl.media().targetDuration * 1000;
-        } else {
-          mpl.createMupOnMedia_ = mpl.updateMinimumUpdatePeriodTimeout_;
-          mpl.one('loadedmetadata', mpl.createMupOnMedia_);
-        }
-      } // if minimumUpdatePeriod is invalid or <= zero, which
-      // can happen when a live video becomes VOD. skip timeout
-      // creation.
-
-      if (typeof mup !== 'number' || mup <= 0) {
-        if (mup < 0) {
-          this.logger_(`found invalid minimumUpdatePeriod of ${mup}, not setting a timeout`);
-        }
-        return;
-      }
-      this.createMUPTimeout_(mup);
-    }
-    createMUPTimeout_(mup) {
-      const mpl = this.mainPlaylistLoader_;
-      mpl.minimumUpdatePeriodTimeout_ = window.setTimeout(() => {
-        mpl.minimumUpdatePeriodTimeout_ = null;
-        mpl.trigger('minimumUpdatePeriod');
-        mpl.createMUPTimeout_(mup);
-      }, mup);
-    }
-    /**
-     * Sends request to refresh the main xml and updates the parsed main manifest
-     */
-
-    refreshXml_() {
-      this.requestMain_((req, mainChanged) => {
-        if (!mainChanged) {
-          return;
-        }
-        if (this.media_) {
-          this.media_ = this.mainPlaylistLoader_.main.playlists[this.media_.id];
-        } // This will filter out updated sidx info from the mapping
-
-        this.mainPlaylistLoader_.sidxMapping_ = filterChangedSidxMappings(this.mainPlaylistLoader_.main, this.mainPlaylistLoader_.sidxMapping_);
-        this.addSidxSegments_(this.media(), this.state, sidxChanged => {
-          // TODO: do we need to reload the current playlist?
-          this.refreshMedia_(this.media().id);
-        });
-      });
-    }
-    /**
-     * Refreshes the media playlist by re-parsing the main xml and updating playlist
-     * references. If this is an alternate loader, the updated parsed manifest is retrieved
-     * from the main loader.
-     */
-
-    refreshMedia_(mediaID) {
-      if (!mediaID) {
-        throw new Error('refreshMedia_ must take a media id');
-      } // for main we have to reparse the main xml
-      // to re-create segments based on current timing values
-      // which may change media. We only skip updating the main manifest
-      // if this is the first time this.media_ is being set.
-      // as main was just parsed in that case.
-
-      if (this.media_ && this.isMain_) {
-        this.handleMain_();
-      }
-      const playlists = this.mainPlaylistLoader_.main.playlists;
-      const mediaChanged = !this.media_ || this.media_ !== playlists[mediaID];
-      if (mediaChanged) {
-        this.media_ = playlists[mediaID];
-      } else {
-        this.trigger('playlistunchanged');
-      }
-      if (!this.mediaUpdateTimeout) {
-        const createMediaUpdateTimeout = () => {
-          if (this.media().endList) {
-            return;
-          }
-          this.mediaUpdateTimeout = window.setTimeout(() => {
-            this.trigger('mediaupdatetimeout');
-            createMediaUpdateTimeout();
-          }, refreshDelay(this.media(), Boolean(mediaChanged)));
-        };
-        createMediaUpdateTimeout();
-      }
-      this.trigger('loadedplaylist');
-    }
-    /**
-     * Takes eventstream data from a parsed DASH manifest and adds it to the metadata text track.
-     *
-     * @param {manifest} newMain the newly parsed manifest
-     */
-
-    addEventStreamToMetadataTrack_(newMain) {
-      // Only add new event stream metadata if we have a new manifest.
-      if (newMain && this.mainPlaylistLoader_.main.eventStream) {
-        // convert EventStream to ID3-like data.
-        const metadataArray = this.mainPlaylistLoader_.main.eventStream.map(eventStreamNode => {
-          return {
-            cueTime: eventStreamNode.start,
-            frames: [{
-              data: eventStreamNode.messageData
-            }]
-          };
-        });
-        this.addMetadataToTextTrack('EventStream', metadataArray, this.mainPlaylistLoader_.main.duration);
-      }
-    }
-    /**
-     * Returns the key ID set from a playlist
-     *
-     * @param {playlist} playlist to fetch the key ID set from.
-     * @return a Set of 32 digit hex strings that represent the unique keyIds for that playlist.
-     */
-
-    getKeyIdSet(playlist) {
-      if (playlist.contentProtection) {
-        const keyIds = new Set();
-        for (const keysystem in playlist.contentProtection) {
-          const defaultKID = playlist.contentProtection[keysystem].attributes['cenc:default_KID'];
-          if (defaultKID) {
-            // DASH keyIds are separated by dashes.
-            keyIds.add(defaultKID.replace(/-/g, '').toLowerCase());
-          }
-        }
-        return keyIds;
-      }
-    }
-  }
-  var Config = {
-    GOAL_BUFFER_LENGTH: 30,
-    MAX_GOAL_BUFFER_LENGTH: 60,
-    BACK_BUFFER_LENGTH: 30,
-    GOAL_BUFFER_LENGTH_RATE: 1,
-    // 0.5 MB/s
-    INITIAL_BANDWIDTH: 4194304,
-    // A fudge factor to apply to advertised playlist bitrates to account for
-    // temporary flucations in client bandwidth
-    BANDWIDTH_VARIANCE: 1.2,
-    // How much of the buffer must be filled before we consider upswitching
-    BUFFER_LOW_WATER_LINE: 0,
-    MAX_BUFFER_LOW_WATER_LINE: 30,
-    // TODO: Remove this when experimentalBufferBasedABR is removed
-    EXPERIMENTAL_MAX_BUFFER_LOW_WATER_LINE: 16,
-    BUFFER_LOW_WATER_LINE_RATE: 1,
-    // If the buffer is greater than the high water line, we won't switch down
-    BUFFER_HIGH_WATER_LINE: 30
-  };
-  const stringToArrayBuffer = string => {
-    const view = new Uint8Array(new ArrayBuffer(string.length));
-    for (let i = 0; i < string.length; i++) {
-      view[i] = string.charCodeAt(i);
-    }
-    return view.buffer;
-  };
-
-  /* global Blob, BlobBuilder, Worker */
-  // unify worker interface
-  const browserWorkerPolyFill = function (workerObj) {
-    // node only supports on/off
-    workerObj.on = workerObj.addEventListener;
-    workerObj.off = workerObj.removeEventListener;
-    return workerObj;
-  };
-  const createObjectURL = function (str) {
-    try {
-      return URL.createObjectURL(new Blob([str], {
-        type: 'application/javascript'
-      }));
-    } catch (e) {
-      const blob = new BlobBuilder();
-      blob.append(str);
-      return URL.createObjectURL(blob.getBlob());
-    }
-  };
-  const factory = function (code) {
-    return function () {
-      const objectUrl = createObjectURL(code);
-      const worker = browserWorkerPolyFill(new Worker(objectUrl));
-      worker.objURL = objectUrl;
-      const terminate = worker.terminate;
-      worker.on = worker.addEventListener;
-      worker.off = worker.removeEventListener;
-      worker.terminate = function () {
-        URL.revokeObjectURL(objectUrl);
-        return terminate.call(this);
-      };
-      return worker;
-    };
-  };
-  const transform = function (code) {
-    return `var browserWorkerPolyFill = ${browserWorkerPolyFill.toString()};\n` + 'browserWorkerPolyFill(self);\n' + code;
-  };
-  const getWorkerString = function (fn) {
-    return fn.toString().replace(/^function.+?{/, '').slice(0, -1);
-  };
-
-  /* rollup-plugin-worker-factory start for worker!/home/runner/work/http-streaming/http-streaming/src/transmuxer-worker.js */
-  const workerCode$1 = transform(getWorkerString(function () {
-    var commonjsGlobal = typeof globalThis !== 'undefined' ? globalThis : typeof window !== 'undefined' ? window : typeof global !== 'undefined' ? global : typeof self !== 'undefined' ? self : {};
-    /**
-     * mux.js
-     *
-     * Copyright (c) Brightcove
-     * Licensed Apache-2.0 https://github.com/videojs/mux.js/blob/master/LICENSE
-     *
-     * A lightweight readable stream implemention that handles event dispatching.
-     * Objects that inherit from streams should call init in their constructors.
-     */
-
-    var Stream$8 = function () {
-      this.init = function () {
-        var listeners = {};
-        /**
-         * Add a listener for a specified event type.
-         * @param type {string} the event name
-         * @param listener {function} the callback to be invoked when an event of
-         * the specified type occurs
-         */
-
-        this.on = function (type, listener) {
-          if (!listeners[type]) {
-            listeners[type] = [];
-          }
-          listeners[type] = listeners[type].concat(listener);
-        };
-        /**
-         * Remove a listener for a specified event type.
-         * @param type {string} the event name
-         * @param listener {function} a function previously registered for this
-         * type of event through `on`
-         */
-
-        this.off = function (type, listener) {
-          var index;
-          if (!listeners[type]) {
-            return false;
-          }
-          index = listeners[type].indexOf(listener);
-          listeners[type] = listeners[type].slice();
-          listeners[type].splice(index, 1);
-          return index > -1;
-        };
-        /**
-         * Trigger an event of the specified type on this stream. Any additional
-         * arguments to this function are passed as parameters to event listeners.
-         * @param type {string} the event name
-         */
-
-        this.trigger = function (type) {
-          var callbacks, i, length, args;
-          callbacks = listeners[type];
-          if (!callbacks) {
-            return;
-          } // Slicing the arguments on every invocation of this method
-          // can add a significant amount of overhead. Avoid the
-          // intermediate object creation for the common case of a
-          // single callback argument
-
-          if (arguments.length === 2) {
-            length = callbacks.length;
-            for (i = 0; i < length; ++i) {
-              callbacks[i].call(this, arguments[1]);
-            }
-          } else {
-            args = [];
-            i = arguments.length;
-            for (i = 1; i < arguments.length; ++i) {
-              args.push(arguments[i]);
-            }
-            length = callbacks.length;
-            for (i = 0; i < length; ++i) {
-              callbacks[i].apply(this, args);
-            }
-          }
-        };
-        /**
-         * Destroys the stream and cleans up.
-         */
-
-        this.dispose = function () {
-          listeners = {};
-        };
-      };
-    };
-    /**
-     * Forwards all `data` events on this stream to the destination stream. The
-     * destination stream should provide a method `push` to receive the data
-     * events as they arrive.
-     * @param destination {stream} the stream that will receive all `data` events
-     * @param autoFlush {boolean} if false, we will not call `flush` on the destination
-     *                            when the current stream emits a 'done' event
-     * @see http://nodejs.org/api/stream.html#stream_readable_pipe_destination_options
-     */
-
-    Stream$8.prototype.pipe = function (destination) {
-      this.on('data', function (data) {
-        destination.push(data);
-      });
-      this.on('done', function (flushSource) {
-        destination.flush(flushSource);
-      });
-      this.on('partialdone', function (flushSource) {
-        destination.partialFlush(flushSource);
-      });
-      this.on('endedtimeline', function (flushSource) {
-        destination.endTimeline(flushSource);
-      });
-      this.on('reset', function (flushSource) {
-        destination.reset(flushSource);
-      });
-      return destination;
-    }; // Default stream functions that are expected to be overridden to perform
-    // actual work. These are provided by the prototype as a sort of no-op
-    // implementation so that we don't have to check for their existence in the
-    // `pipe` function above.
-
-    Stream$8.prototype.push = function (data) {
-      this.trigger('data', data);
-    };
-    Stream$8.prototype.flush = function (flushSource) {
-      this.trigger('done', flushSource);
-    };
-    Stream$8.prototype.partialFlush = function (flushSource) {
-      this.trigger('partialdone', flushSource);
-    };
-    Stream$8.prototype.endTimeline = function (flushSource) {
-      this.trigger('endedtimeline', flushSource);
-    };
-    Stream$8.prototype.reset = function (flushSource) {
-      this.trigger('reset', flushSource);
-    };
-    var stream = Stream$8;
-    var MAX_UINT32$1 = Math.pow(2, 32);
-    var getUint64$3 = function (uint8) {
-      var dv = new DataView(uint8.buffer, uint8.byteOffset, uint8.byteLength);
-      var value;
-      if (dv.getBigUint64) {
-        value = dv.getBigUint64(0);
-        if (value < Number.MAX_SAFE_INTEGER) {
-          return Number(value);
-        }
-        return value;
-      }
-      return dv.getUint32(0) * MAX_UINT32$1 + dv.getUint32(4);
-    };
-    var numbers = {
-      getUint64: getUint64$3,
-      MAX_UINT32: MAX_UINT32$1
-    };
-    /**
-     * mux.js
-     *
-     * Copyright (c) Brightcove
-     * Licensed Apache-2.0 https://github.com/videojs/mux.js/blob/master/LICENSE
-     *
-     * Functions that generate fragmented MP4s suitable for use with Media
-     * Source Extensions.
-     */
-
-    var MAX_UINT32 = numbers.MAX_UINT32;
-    var box, dinf, esds, ftyp, mdat, mfhd, minf, moof, moov, mvex, mvhd, trak, tkhd, mdia, mdhd, hdlr, sdtp, stbl, stsd, traf, trex, trun$1, types, MAJOR_BRAND, MINOR_VERSION, AVC1_BRAND, VIDEO_HDLR, AUDIO_HDLR, HDLR_TYPES, VMHD, SMHD, DREF, STCO, STSC, STSZ, STTS; // pre-calculate constants
-
-    (function () {
-      var i;
-      types = {
-        avc1: [],
-        // codingname
-        avcC: [],
-        btrt: [],
-        dinf: [],
-        dref: [],
-        esds: [],
-        ftyp: [],
-        hdlr: [],
-        mdat: [],
-        mdhd: [],
-        mdia: [],
-        mfhd: [],
-        minf: [],
-        moof: [],
-        moov: [],
-        mp4a: [],
-        // codingname
-        mvex: [],
-        mvhd: [],
-        pasp: [],
-        sdtp: [],
-        smhd: [],
-        stbl: [],
-        stco: [],
-        stsc: [],
-        stsd: [],
-        stsz: [],
-        stts: [],
-        styp: [],
-        tfdt: [],
-        tfhd: [],
-        traf: [],
-        trak: [],
-        trun: [],
-        trex: [],
-        tkhd: [],
-        vmhd: []
-      }; // In environments where Uint8Array is undefined (e.g., IE8), skip set up so that we
-      // don't throw an error
-
-      if (typeof Uint8Array === 'undefined') {
-        return;
-      }
-      for (i in types) {
-        if (types.hasOwnProperty(i)) {
-          types[i] = [i.charCodeAt(0), i.charCodeAt(1), i.charCodeAt(2), i.charCodeAt(3)];
-        }
-      }
-      MAJOR_BRAND = new Uint8Array(['i'.charCodeAt(0), 's'.charCodeAt(0), 'o'.charCodeAt(0), 'm'.charCodeAt(0)]);
-      AVC1_BRAND = new Uint8Array(['a'.charCodeAt(0), 'v'.charCodeAt(0), 'c'.charCodeAt(0), '1'.charCodeAt(0)]);
-      MINOR_VERSION = new Uint8Array([0, 0, 0, 1]);
-      VIDEO_HDLR = new Uint8Array([0x00,
-      // version 0
-      0x00, 0x00, 0x00,
-      // flags
-      0x00, 0x00, 0x00, 0x00,
-      // pre_defined
-      0x76, 0x69, 0x64, 0x65,
-      // handler_type: 'vide'
-      0x00, 0x00, 0x00, 0x00,
-      // reserved
-      0x00, 0x00, 0x00, 0x00,
-      // reserved
-      0x00, 0x00, 0x00, 0x00,
-      // reserved
-      0x56, 0x69, 0x64, 0x65, 0x6f, 0x48, 0x61, 0x6e, 0x64, 0x6c, 0x65, 0x72, 0x00 // name: 'VideoHandler'
-      ]);
-
-      AUDIO_HDLR = new Uint8Array([0x00,
-      // version 0
-      0x00, 0x00, 0x00,
-      // flags
-      0x00, 0x00, 0x00, 0x00,
-      // pre_defined
-      0x73, 0x6f, 0x75, 0x6e,
-      // handler_type: 'soun'
-      0x00, 0x00, 0x00, 0x00,
-      // reserved
-      0x00, 0x00, 0x00, 0x00,
-      // reserved
-      0x00, 0x00, 0x00, 0x00,
-      // reserved
-      0x53, 0x6f, 0x75, 0x6e, 0x64, 0x48, 0x61, 0x6e, 0x64, 0x6c, 0x65, 0x72, 0x00 // name: 'SoundHandler'
-      ]);
-
-      HDLR_TYPES = {
-        video: VIDEO_HDLR,
-        audio: AUDIO_HDLR
-      };
-      DREF = new Uint8Array([0x00,
-      // version 0
-      0x00, 0x00, 0x00,
-      // flags
-      0x00, 0x00, 0x00, 0x01,
-      // entry_count
-      0x00, 0x00, 0x00, 0x0c,
-      // entry_size
-      0x75, 0x72, 0x6c, 0x20,
-      // 'url' type
-      0x00,
-      // version 0
-      0x00, 0x00, 0x01 // entry_flags
-      ]);
-
-      SMHD = new Uint8Array([0x00,
-      // version
-      0x00, 0x00, 0x00,
-      // flags
-      0x00, 0x00,
-      // balance, 0 means centered
-      0x00, 0x00 // reserved
-      ]);
-
-      STCO = new Uint8Array([0x00,
-      // version
-      0x00, 0x00, 0x00,
-      // flags
-      0x00, 0x00, 0x00, 0x00 // entry_count
-      ]);
-
-      STSC = STCO;
-      STSZ = new Uint8Array([0x00,
-      // version
-      0x00, 0x00, 0x00,
-      // flags
-      0x00, 0x00, 0x00, 0x00,
-      // sample_size
-      0x00, 0x00, 0x00, 0x00 // sample_count
-      ]);
-
-      STTS = STCO;
-      VMHD = new Uint8Array([0x00,
-      // version
-      0x00, 0x00, 0x01,
-      // flags
-      0x00, 0x00,
-      // graphicsmode
-      0x00, 0x00, 0x00, 0x00, 0x00, 0x00 // opcolor
-      ]);
-    })();
-
-    box = function (type) {
-      var payload = [],
-        size = 0,
-        i,
-        result,
-        view;
-      for (i = 1; i < arguments.length; i++) {
-        payload.push(arguments[i]);
-      }
-      i = payload.length; // calculate the total size we need to allocate
-
-      while (i--) {
-        size += payload[i].byteLength;
-      }
-      result = new Uint8Array(size + 8);
-      view = new DataView(result.buffer, result.byteOffset, result.byteLength);
-      view.setUint32(0, result.byteLength);
-      result.set(type, 4); // copy the payload into the result
-
-      for (i = 0, size = 8; i < payload.length; i++) {
-        result.set(payload[i], size);
-        size += payload[i].byteLength;
-      }
-      return result;
-    };
-    dinf = function () {
-      return box(types.dinf, box(types.dref, DREF));
-    };
-    esds = function (track) {
-      return box(types.esds, new Uint8Array([0x00,
-      // version
-      0x00, 0x00, 0x00,
-      // flags
-      // ES_Descriptor
-      0x03,
-      // tag, ES_DescrTag
-      0x19,
-      // length
-      0x00, 0x00,
-      // ES_ID
-      0x00,
-      // streamDependenceFlag, URL_flag, reserved, streamPriority
-      // DecoderConfigDescriptor
-      0x04,
-      // tag, DecoderConfigDescrTag
-      0x11,
-      // length
-      0x40,
-      // object type
-      0x15,
-      // streamType
-      0x00, 0x06, 0x00,
-      // bufferSizeDB
-      0x00, 0x00, 0xda, 0xc0,
-      // maxBitrate
-      0x00, 0x00, 0xda, 0xc0,
-      // avgBitrate
-      // DecoderSpecificInfo
-      0x05,
-      // tag, DecoderSpecificInfoTag
-      0x02,
-      // length
-      // ISO/IEC 14496-3, AudioSpecificConfig
-      // for samplingFrequencyIndex see ISO/IEC 13818-7:2006, 8.1.3.2.2, Table 35
-      track.audioobjecttype << 3 | track.samplingfrequencyindex >>> 1, track.samplingfrequencyindex << 7 | track.channelcount << 3, 0x06, 0x01, 0x02 // GASpecificConfig
-      ]));
-    };
-
-    ftyp = function () {
-      return box(types.ftyp, MAJOR_BRAND, MINOR_VERSION, MAJOR_BRAND, AVC1_BRAND);
-    };
-    hdlr = function (type) {
-      return box(types.hdlr, HDLR_TYPES[type]);
-    };
-    mdat = function (data) {
-      return box(types.mdat, data);
-    };
-    mdhd = function (track) {
-      var result = new Uint8Array([0x00,
-      // version 0
-      0x00, 0x00, 0x00,
-      // flags
-      0x00, 0x00, 0x00, 0x02,
-      // creation_time
-      0x00, 0x00, 0x00, 0x03,
-      // modification_time
-      0x00, 0x01, 0x5f, 0x90,
-      // timescale, 90,000 "ticks" per second
-      track.duration >>> 24 & 0xFF, track.duration >>> 16 & 0xFF, track.duration >>> 8 & 0xFF, track.duration & 0xFF,
-      // duration
-      0x55, 0xc4,
-      // 'und' language (undetermined)
-      0x00, 0x00]); // Use the sample rate from the track metadata, when it is
-      // defined. The sample rate can be parsed out of an ADTS header, for
-      // instance.
-
-      if (track.samplerate) {
-        result[12] = track.samplerate >>> 24 & 0xFF;
-        result[13] = track.samplerate >>> 16 & 0xFF;
-        result[14] = track.samplerate >>> 8 & 0xFF;
-        result[15] = track.samplerate & 0xFF;
-      }
-      return box(types.mdhd, result);
-    };
-    mdia = function (track) {
-      return box(types.mdia, mdhd(track), hdlr(track.type), minf(track));
-    };
-    mfhd = function (sequenceNumber) {
-      return box(types.mfhd, new Uint8Array([0x00, 0x00, 0x00, 0x00,
-      // flags
-      (sequenceNumber & 0xFF000000) >> 24, (sequenceNumber & 0xFF0000) >> 16, (sequenceNumber & 0xFF00) >> 8, sequenceNumber & 0xFF // sequence_number
-      ]));
-    };
-
-    minf = function (track) {
-      return box(types.minf, track.type === 'video' ? box(types.vmhd, VMHD) : box(types.smhd, SMHD), dinf(), stbl(track));
-    };
-    moof = function (sequenceNumber, tracks) {
-      var trackFragments = [],
-        i = tracks.length; // build traf boxes for each track fragment
-
-      while (i--) {
-        trackFragments[i] = traf(tracks[i]);
-      }
-      return box.apply(null, [types.moof, mfhd(sequenceNumber)].concat(trackFragments));
-    };
-    /**
-     * Returns a movie box.
-     * @param tracks {array} the tracks associated with this movie
-     * @see ISO/IEC 14496-12:2012(E), section 8.2.1
-     */
-
-    moov = function (tracks) {
-      var i = tracks.length,
-        boxes = [];
-      while (i--) {
-        boxes[i] = trak(tracks[i]);
-      }
-      return box.apply(null, [types.moov, mvhd(0xffffffff)].concat(boxes).concat(mvex(tracks)));
-    };
-    mvex = function (tracks) {
-      var i = tracks.length,
-        boxes = [];
-      while (i--) {
-        boxes[i] = trex(tracks[i]);
-      }
-      return box.apply(null, [types.mvex].concat(boxes));
-    };
-    mvhd = function (duration) {
-      var bytes = new Uint8Array([0x00,
-      // version 0
-      0x00, 0x00, 0x00,
-      // flags
-      0x00, 0x00, 0x00, 0x01,
-      // creation_time
-      0x00, 0x00, 0x00, 0x02,
-      // modification_time
-      0x00, 0x01, 0x5f, 0x90,
-      // timescale, 90,000 "ticks" per second
-      (duration & 0xFF000000) >> 24, (duration & 0xFF0000) >> 16, (duration & 0xFF00) >> 8, duration & 0xFF,
-      // duration
-      0x00, 0x01, 0x00, 0x00,
-      // 1.0 rate
-      0x01, 0x00,
-      // 1.0 volume
-      0x00, 0x00,
-      // reserved
-      0x00, 0x00, 0x00, 0x00,
-      // reserved
-      0x00, 0x00, 0x00, 0x00,
-      // reserved
-      0x00, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x40, 0x00, 0x00, 0x00,
-      // transformation: unity matrix
-      0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-      // pre_defined
-      0xff, 0xff, 0xff, 0xff // next_track_ID
-      ]);
-
-      return box(types.mvhd, bytes);
-    };
-    sdtp = function (track) {
-      var samples = track.samples || [],
-        bytes = new Uint8Array(4 + samples.length),
-        flags,
-        i; // leave the full box header (4 bytes) all zero
-      // write the sample table
-
-      for (i = 0; i < samples.length; i++) {
-        flags = samples[i].flags;
-        bytes[i + 4] = flags.dependsOn << 4 | flags.isDependedOn << 2 | flags.hasRedundancy;
-      }
-      return box(types.sdtp, bytes);
-    };
-    stbl = function (track) {
-      return box(types.stbl, stsd(track), box(types.stts, STTS), box(types.stsc, STSC), box(types.stsz, STSZ), box(types.stco, STCO));
-    };
-    (function () {
-      var videoSample, audioSample;
-      stsd = function (track) {
-        return box(types.stsd, new Uint8Array([0x00,
-        // version 0
-        0x00, 0x00, 0x00,
-        // flags
-        0x00, 0x00, 0x00, 0x01]), track.type === 'video' ? videoSample(track) : audioSample(track));
-      };
-      videoSample = function (track) {
-        var sps = track.sps || [],
-          pps = track.pps || [],
-          sequenceParameterSets = [],
-          pictureParameterSets = [],
-          i,
-          avc1Box; // assemble the SPSs
-
-        for (i = 0; i < sps.length; i++) {
-          sequenceParameterSets.push((sps[i].byteLength & 0xFF00) >>> 8);
-          sequenceParameterSets.push(sps[i].byteLength & 0xFF); // sequenceParameterSetLength
-
-          sequenceParameterSets = sequenceParameterSets.concat(Array.prototype.slice.call(sps[i])); // SPS
-        } // assemble the PPSs
-
-        for (i = 0; i < pps.length; i++) {
-          pictureParameterSets.push((pps[i].byteLength & 0xFF00) >>> 8);
-          pictureParameterSets.push(pps[i].byteLength & 0xFF);
-          pictureParameterSets = pictureParameterSets.concat(Array.prototype.slice.call(pps[i]));
-        }
-        avc1Box = [types.avc1, new Uint8Array([0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-        // reserved
-        0x00, 0x01,
-        // data_reference_index
-        0x00, 0x00,
-        // pre_defined
-        0x00, 0x00,
-        // reserved
-        0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-        // pre_defined
-        (track.width & 0xff00) >> 8, track.width & 0xff,
-        // width
-        (track.height & 0xff00) >> 8, track.height & 0xff,
-        // height
-        0x00, 0x48, 0x00, 0x00,
-        // horizresolution
-        0x00, 0x48, 0x00, 0x00,
-        // vertresolution
-        0x00, 0x00, 0x00, 0x00,
-        // reserved
-        0x00, 0x01,
-        // frame_count
-        0x13, 0x76, 0x69, 0x64, 0x65, 0x6f, 0x6a, 0x73, 0x2d, 0x63, 0x6f, 0x6e, 0x74, 0x72, 0x69, 0x62, 0x2d, 0x68, 0x6c, 0x73, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-        // compressorname
-        0x00, 0x18,
-        // depth = 24
-        0x11, 0x11 // pre_defined = -1
-        ]), box(types.avcC, new Uint8Array([0x01,
-        // configurationVersion
-        track.profileIdc,
-        // AVCProfileIndication
-        track.profileCompatibility,
-        // profile_compatibility
-        track.levelIdc,
-        // AVCLevelIndication
-        0xff // lengthSizeMinusOne, hard-coded to 4 bytes
-        ].concat([sps.length],
-        // numOfSequenceParameterSets
-        sequenceParameterSets,
-        // "SPS"
-        [pps.length],
-        // numOfPictureParameterSets
-        pictureParameterSets // "PPS"
-        ))), box(types.btrt, new Uint8Array([0x00, 0x1c, 0x9c, 0x80,
-        // bufferSizeDB
-        0x00, 0x2d, 0xc6, 0xc0,
-        // maxBitrate
-        0x00, 0x2d, 0xc6, 0xc0 // avgBitrate
-        ]))];
-
-        if (track.sarRatio) {
-          var hSpacing = track.sarRatio[0],
-            vSpacing = track.sarRatio[1];
-          avc1Box.push(box(types.pasp, new Uint8Array([(hSpacing & 0xFF000000) >> 24, (hSpacing & 0xFF0000) >> 16, (hSpacing & 0xFF00) >> 8, hSpacing & 0xFF, (vSpacing & 0xFF000000) >> 24, (vSpacing & 0xFF0000) >> 16, (vSpacing & 0xFF00) >> 8, vSpacing & 0xFF])));
-        }
-        return box.apply(null, avc1Box);
-      };
-      audioSample = function (track) {
-        return box(types.mp4a, new Uint8Array([
-        // SampleEntry, ISO/IEC 14496-12
-        0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-        // reserved
-        0x00, 0x01,
-        // data_reference_index
-        // AudioSampleEntry, ISO/IEC 14496-12
-        0x00, 0x00, 0x00, 0x00,
-        // reserved
-        0x00, 0x00, 0x00, 0x00,
-        // reserved
-        (track.channelcount & 0xff00) >> 8, track.channelcount & 0xff,
-        // channelcount
-        (track.samplesize & 0xff00) >> 8, track.samplesize & 0xff,
-        // samplesize
-        0x00, 0x00,
-        // pre_defined
-        0x00, 0x00,
-        // reserved
-        (track.samplerate & 0xff00) >> 8, track.samplerate & 0xff, 0x00, 0x00 // samplerate, 16.16
-        // MP4AudioSampleEntry, ISO/IEC 14496-14
-        ]), esds(track));
-      };
-    })();
-    tkhd = function (track) {
-      var result = new Uint8Array([0x00,
-      // version 0
-      0x00, 0x00, 0x07,
-      // flags
-      0x00, 0x00, 0x00, 0x00,
-      // creation_time
-      0x00, 0x00, 0x00, 0x00,
-      // modification_time
-      (track.id & 0xFF000000) >> 24, (track.id & 0xFF0000) >> 16, (track.id & 0xFF00) >> 8, track.id & 0xFF,
-      // track_ID
-      0x00, 0x00, 0x00, 0x00,
-      // reserved
-      (track.duration & 0xFF000000) >> 24, (track.duration & 0xFF0000) >> 16, (track.duration & 0xFF00) >> 8, track.duration & 0xFF,
-      // duration
-      0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-      // reserved
-      0x00, 0x00,
-      // layer
-      0x00, 0x00,
-      // alternate_group
-      0x01, 0x00,
-      // non-audio track volume
-      0x00, 0x00,
-      // reserved
-      0x00, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x40, 0x00, 0x00, 0x00,
-      // transformation: unity matrix
-      (track.width & 0xFF00) >> 8, track.width & 0xFF, 0x00, 0x00,
-      // width
-      (track.height & 0xFF00) >> 8, track.height & 0xFF, 0x00, 0x00 // height
-      ]);
-
-      return box(types.tkhd, result);
-    };
-    /**
-     * Generate a track fragment (traf) box. A traf box collects metadata
-     * about tracks in a movie fragment (moof) box.
-     */
-
-    traf = function (track) {
-      var trackFragmentHeader, trackFragmentDecodeTime, trackFragmentRun, sampleDependencyTable, dataOffset, upperWordBaseMediaDecodeTime, lowerWordBaseMediaDecodeTime;
-      trackFragmentHeader = box(types.tfhd, new Uint8Array([0x00,
-      // version 0
-      0x00, 0x00, 0x3a,
-      // flags
-      (track.id & 0xFF000000) >> 24, (track.id & 0xFF0000) >> 16, (track.id & 0xFF00) >> 8, track.id & 0xFF,
-      // track_ID
-      0x00, 0x00, 0x00, 0x01,
-      // sample_description_index
-      0x00, 0x00, 0x00, 0x00,
-      // default_sample_duration
-      0x00, 0x00, 0x00, 0x00,
-      // default_sample_size
-      0x00, 0x00, 0x00, 0x00 // default_sample_flags
-      ]));
-
-      upperWordBaseMediaDecodeTime = Math.floor(track.baseMediaDecodeTime / MAX_UINT32);
-      lowerWordBaseMediaDecodeTime = Math.floor(track.baseMediaDecodeTime % MAX_UINT32);
-      trackFragmentDecodeTime = box(types.tfdt, new Uint8Array([0x01,
-      // version 1
-      0x00, 0x00, 0x00,
-      // flags
-      // baseMediaDecodeTime
-      upperWordBaseMediaDecodeTime >>> 24 & 0xFF, upperWordBaseMediaDecodeTime >>> 16 & 0xFF, upperWordBaseMediaDecodeTime >>> 8 & 0xFF, upperWordBaseMediaDecodeTime & 0xFF, lowerWordBaseMediaDecodeTime >>> 24 & 0xFF, lowerWordBaseMediaDecodeTime >>> 16 & 0xFF, lowerWordBaseMediaDecodeTime >>> 8 & 0xFF, lowerWordBaseMediaDecodeTime & 0xFF])); // the data offset specifies the number of bytes from the start of
-      // the containing moof to the first payload byte of the associated
-      // mdat
-
-      dataOffset = 32 +
-      // tfhd
-      20 +
-      // tfdt
-      8 +
-      // traf header
-      16 +
-      // mfhd
-      8 +
-      // moof header
-      8; // mdat header
-      // audio tracks require less metadata
-
-      if (track.type === 'audio') {
-        trackFragmentRun = trun$1(track, dataOffset);
-        return box(types.traf, trackFragmentHeader, trackFragmentDecodeTime, trackFragmentRun);
-      } // video tracks should contain an independent and disposable samples
-      // box (sdtp)
-      // generate one and adjust offsets to match
-
-      sampleDependencyTable = sdtp(track);
-      trackFragmentRun = trun$1(track, sampleDependencyTable.length + dataOffset);
-      return box(types.traf, trackFragmentHeader, trackFragmentDecodeTime, trackFragmentRun, sampleDependencyTable);
-    };
-    /**
-     * Generate a track box.
-     * @param track {object} a track definition
-     * @return {Uint8Array} the track box
-     */
-
-    trak = function (track) {
-      track.duration = track.duration || 0xffffffff;
-      return box(types.trak, tkhd(track), mdia(track));
-    };
-    trex = function (track) {
-      var result = new Uint8Array([0x00,
-      // version 0
-      0x00, 0x00, 0x00,
-      // flags
-      (track.id & 0xFF000000) >> 24, (track.id & 0xFF0000) >> 16, (track.id & 0xFF00) >> 8, track.id & 0xFF,
-      // track_ID
-      0x00, 0x00, 0x00, 0x01,
-      // default_sample_description_index
-      0x00, 0x00, 0x00, 0x00,
-      // default_sample_duration
-      0x00, 0x00, 0x00, 0x00,
-      // default_sample_size
-      0x00, 0x01, 0x00, 0x01 // default_sample_flags
-      ]); // the last two bytes of default_sample_flags is the sample
-      // degradation priority, a hint about the importance of this sample
-      // relative to others. Lower the degradation priority for all sample
-      // types other than video.
-
-      if (track.type !== 'video') {
-        result[result.length - 1] = 0x00;
-      }
-      return box(types.trex, result);
-    };
-    (function () {
-      var audioTrun, videoTrun, trunHeader; // This method assumes all samples are uniform. That is, if a
-      // duration is present for the first sample, it will be present for
-      // all subsequent samples.
-      // see ISO/IEC 14496-12:2012, Section 8.8.8.1
-
-      trunHeader = function (samples, offset) {
-        var durationPresent = 0,
-          sizePresent = 0,
-          flagsPresent = 0,
-          compositionTimeOffset = 0; // trun flag constants
-
-        if (samples.length) {
-          if (samples[0].duration !== undefined) {
-            durationPresent = 0x1;
-          }
-          if (samples[0].size !== undefined) {
-            sizePresent = 0x2;
-          }
-          if (samples[0].flags !== undefined) {
-            flagsPresent = 0x4;
-          }
-          if (samples[0].compositionTimeOffset !== undefined) {
-            compositionTimeOffset = 0x8;
-          }
-        }
-        return [0x00,
-        // version 0
-        0x00, durationPresent | sizePresent | flagsPresent | compositionTimeOffset, 0x01,
-        // flags
-        (samples.length & 0xFF000000) >>> 24, (samples.length & 0xFF0000) >>> 16, (samples.length & 0xFF00) >>> 8, samples.length & 0xFF,
-        // sample_count
-        (offset & 0xFF000000) >>> 24, (offset & 0xFF0000) >>> 16, (offset & 0xFF00) >>> 8, offset & 0xFF // data_offset
-        ];
-      };
-
-      videoTrun = function (track, offset) {
-        var bytesOffest, bytes, header, samples, sample, i;
-        samples = track.samples || [];
-        offset += 8 + 12 + 16 * samples.length;
-        header = trunHeader(samples, offset);
-        bytes = new Uint8Array(header.length + samples.length * 16);
-        bytes.set(header);
-        bytesOffest = header.length;
-        for (i = 0; i < samples.length; i++) {
-          sample = samples[i];
-          bytes[bytesOffest++] = (sample.duration & 0xFF000000) >>> 24;
-          bytes[bytesOffest++] = (sample.duration & 0xFF0000) >>> 16;
-          bytes[bytesOffest++] = (sample.duration & 0xFF00) >>> 8;
-          bytes[bytesOffest++] = sample.duration & 0xFF; // sample_duration
-
-          bytes[bytesOffest++] = (sample.size & 0xFF000000) >>> 24;
-          bytes[bytesOffest++] = (sample.size & 0xFF0000) >>> 16;
-          bytes[bytesOffest++] = (sample.size & 0xFF00) >>> 8;
-          bytes[bytesOffest++] = sample.size & 0xFF; // sample_size
-
-          bytes[bytesOffest++] = sample.flags.isLeading << 2 | sample.flags.dependsOn;
-          bytes[bytesOffest++] = sample.flags.isDependedOn << 6 | sample.flags.hasRedundancy << 4 | sample.flags.paddingValue << 1 | sample.flags.isNonSyncSample;
-          bytes[bytesOffest++] = sample.flags.degradationPriority & 0xF0 << 8;
-          bytes[bytesOffest++] = sample.flags.degradationPriority & 0x0F; // sample_flags
-
-          bytes[bytesOffest++] = (sample.compositionTimeOffset & 0xFF000000) >>> 24;
-          bytes[bytesOffest++] = (sample.compositionTimeOffset & 0xFF0000) >>> 16;
-          bytes[bytesOffest++] = (sample.compositionTimeOffset & 0xFF00) >>> 8;
-          bytes[bytesOffest++] = sample.compositionTimeOffset & 0xFF; // sample_composition_time_offset
-        }
-
-        return box(types.trun, bytes);
-      };
-      audioTrun = function (track, offset) {
-        var bytes, bytesOffest, header, samples, sample, i;
-        samples = track.samples || [];
-        offset += 8 + 12 + 8 * samples.length;
-        header = trunHeader(samples, offset);
-        bytes = new Uint8Array(header.length + samples.length * 8);
-        bytes.set(header);
-        bytesOffest = header.length;
-        for (i = 0; i < samples.length; i++) {
-          sample = samples[i];
-          bytes[bytesOffest++] = (sample.duration & 0xFF000000) >>> 24;
-          bytes[bytesOffest++] = (sample.duration & 0xFF0000) >>> 16;
-          bytes[bytesOffest++] = (sample.duration & 0xFF00) >>> 8;
-          bytes[bytesOffest++] = sample.duration & 0xFF; // sample_duration
-
-          bytes[bytesOffest++] = (sample.size & 0xFF000000) >>> 24;
-          bytes[bytesOffest++] = (sample.size & 0xFF0000) >>> 16;
-          bytes[bytesOffest++] = (sample.size & 0xFF00) >>> 8;
-          bytes[bytesOffest++] = sample.size & 0xFF; // sample_size
-        }
-
-        return box(types.trun, bytes);
-      };
-      trun$1 = function (track, offset) {
-        if (track.type === 'audio') {
-          return audioTrun(track, offset);
-        }
-        return videoTrun(track, offset);
-      };
-    })();
-    var mp4Generator = {
-      ftyp: ftyp,
-      mdat: mdat,
-      moof: moof,
-      moov: moov,
-      initSegment: function (tracks) {
-        var fileType = ftyp(),
-          movie = moov(tracks),
-          result;
-        result = new Uint8Array(fileType.byteLength + movie.byteLength);
-        result.set(fileType);
-        result.set(movie, fileType.byteLength);
-        return result;
-      }
-    };
-    /**
-     * mux.js
-     *
-     * Copyright (c) Brightcove
-     * Licensed Apache-2.0 https://github.com/videojs/mux.js/blob/master/LICENSE
-     */
-    // composed of the nal units that make up that frame
-    // Also keep track of cummulative data about the frame from the nal units such
-    // as the frame duration, starting pts, etc.
-
-    var groupNalsIntoFrames = function (nalUnits) {
-      var i,
-        currentNal,
-        currentFrame = [],
-        frames = []; // TODO added for LHLS, make sure this is OK
-
-      frames.byteLength = 0;
-      frames.nalCount = 0;
-      frames.duration = 0;
-      currentFrame.byteLength = 0;
-      for (i = 0; i < nalUnits.length; i++) {
-        currentNal = nalUnits[i]; // Split on 'aud'-type nal units
-
-        if (currentNal.nalUnitType === 'access_unit_delimiter_rbsp') {
-          // Since the very first nal unit is expected to be an AUD
-          // only push to the frames array when currentFrame is not empty
-          if (currentFrame.length) {
-            currentFrame.duration = currentNal.dts - currentFrame.dts; // TODO added for LHLS, make sure this is OK
-
-            frames.byteLength += currentFrame.byteLength;
-            frames.nalCount += currentFrame.length;
-            frames.duration += currentFrame.duration;
-            frames.push(currentFrame);
-          }
-          currentFrame = [currentNal];
-          currentFrame.byteLength = currentNal.data.byteLength;
-          currentFrame.pts = currentNal.pts;
-          currentFrame.dts = currentNal.dts;
-        } else {
-          // Specifically flag key frames for ease of use later
-          if (currentNal.nalUnitType === 'slice_layer_without_partitioning_rbsp_idr') {
-            currentFrame.keyFrame = true;
-          }
-          currentFrame.duration = currentNal.dts - currentFrame.dts;
-          currentFrame.byteLength += currentNal.data.byteLength;
-          currentFrame.push(currentNal);
-        }
-      } // For the last frame, use the duration of the previous frame if we
-      // have nothing better to go on
-
-      if (frames.length && (!currentFrame.duration || currentFrame.duration <= 0)) {
-        currentFrame.duration = frames[frames.length - 1].duration;
-      } // Push the final frame
-      // TODO added for LHLS, make sure this is OK
-
-      frames.byteLength += currentFrame.byteLength;
-      frames.nalCount += currentFrame.length;
-      frames.duration += currentFrame.duration;
-      frames.push(currentFrame);
-      return frames;
-    }; // Convert an array of frames into an array of Gop with each Gop being composed
-    // of the frames that make up that Gop
-    // Also keep track of cummulative data about the Gop from the frames such as the
-    // Gop duration, starting pts, etc.
-
-    var groupFramesIntoGops = function (frames) {
-      var i,
-        currentFrame,
-        currentGop = [],
-        gops = []; // We must pre-set some of the values on the Gop since we
-      // keep running totals of these values
-
-      currentGop.byteLength = 0;
-      currentGop.nalCount = 0;
-      currentGop.duration = 0;
-      currentGop.pts = frames[0].pts;
-      currentGop.dts = frames[0].dts; // store some metadata about all the Gops
-
-      gops.byteLength = 0;
-      gops.nalCount = 0;
-      gops.duration = 0;
-      gops.pts = frames[0].pts;
-      gops.dts = frames[0].dts;
-      for (i = 0; i < frames.length; i++) {
-        currentFrame = frames[i];
-        if (currentFrame.keyFrame) {
-          // Since the very first frame is expected to be an keyframe
-          // only push to the gops array when currentGop is not empty
-          if (currentGop.length) {
-            gops.push(currentGop);
-            gops.byteLength += currentGop.byteLength;
-            gops.nalCount += currentGop.nalCount;
-            gops.duration += currentGop.duration;
-          }
-          currentGop = [currentFrame];
-          currentGop.nalCount = currentFrame.length;
-          currentGop.byteLength = currentFrame.byteLength;
-          currentGop.pts = currentFrame.pts;
-          currentGop.dts = currentFrame.dts;
-          currentGop.duration = currentFrame.duration;
-        } else {
-          currentGop.duration += currentFrame.duration;
-          currentGop.nalCount += currentFrame.length;
-          currentGop.byteLength += currentFrame.byteLength;
-          currentGop.push(currentFrame);
-        }
-      }
-      if (gops.length && currentGop.duration <= 0) {
-        currentGop.duration = gops[gops.length - 1].duration;
-      }
-      gops.byteLength += currentGop.byteLength;
-      gops.nalCount += currentGop.nalCount;
-      gops.duration += currentGop.duration; // push the final Gop
-
-      gops.push(currentGop);
-      return gops;
-    };
-    /*
-     * Search for the first keyframe in the GOPs and throw away all frames
-     * until that keyframe. Then extend the duration of the pulled keyframe
-     * and pull the PTS and DTS of the keyframe so that it covers the time
-     * range of the frames that were disposed.
-     *
-     * @param {Array} gops video GOPs
-     * @returns {Array} modified video GOPs
-     */
-
-    var extendFirstKeyFrame = function (gops) {
-      var currentGop;
-      if (!gops[0][0].keyFrame && gops.length > 1) {
-        // Remove the first GOP
-        currentGop = gops.shift();
-        gops.byteLength -= currentGop.byteLength;
-        gops.nalCount -= currentGop.nalCount; // Extend the first frame of what is now the
-        // first gop to cover the time period of the
-        // frames we just removed
-
-        gops[0][0].dts = currentGop.dts;
-        gops[0][0].pts = currentGop.pts;
-        gops[0][0].duration += currentGop.duration;
-      }
-      return gops;
-    };
-    /**
-     * Default sample object
-     * see ISO/IEC 14496-12:2012, section 8.6.4.3
-     */
-
-    var createDefaultSample = function () {
-      return {
-        size: 0,
-        flags: {
-          isLeading: 0,
-          dependsOn: 1,
-          isDependedOn: 0,
-          hasRedundancy: 0,
-          degradationPriority: 0,
-          isNonSyncSample: 1
-        }
-      };
-    };
-    /*
-     * Collates information from a video frame into an object for eventual
-     * entry into an MP4 sample table.
-     *
-     * @param {Object} frame the video frame
-     * @param {Number} dataOffset the byte offset to position the sample
-     * @return {Object} object containing sample table info for a frame
-     */
-
-    var sampleForFrame = function (frame, dataOffset) {
-      var sample = createDefaultSample();
-      sample.dataOffset = dataOffset;
-      sample.compositionTimeOffset = frame.pts - frame.dts;
-      sample.duration = frame.duration;
-      sample.size = 4 * frame.length; // Space for nal unit size
-
-      sample.size += frame.byteLength;
-      if (frame.keyFrame) {
-        sample.flags.dependsOn = 2;
-        sample.flags.isNonSyncSample = 0;
-      }
-      return sample;
-    }; // generate the track's sample table from an array of gops
-
-    var generateSampleTable$1 = function (gops, baseDataOffset) {
-      var h,
-        i,
-        sample,
-        currentGop,
-        currentFrame,
-        dataOffset = baseDataOffset || 0,
-        samples = [];
-      for (h = 0; h < gops.length; h++) {
-        currentGop = gops[h];
-        for (i = 0; i < currentGop.length; i++) {
-          currentFrame = currentGop[i];
-          sample = sampleForFrame(currentFrame, dataOffset);
-          dataOffset += sample.size;
-          samples.push(sample);
-        }
-      }
-      return samples;
-    }; // generate the track's raw mdat data from an array of gops
-
-    var concatenateNalData = function (gops) {
-      var h,
-        i,
-        j,
-        currentGop,
-        currentFrame,
-        currentNal,
-        dataOffset = 0,
-        nalsByteLength = gops.byteLength,
-        numberOfNals = gops.nalCount,
-        totalByteLength = nalsByteLength + 4 * numberOfNals,
-        data = new Uint8Array(totalByteLength),
-        view = new DataView(data.buffer); // For each Gop..
-
-      for (h = 0; h < gops.length; h++) {
-        currentGop = gops[h]; // For each Frame..
-
-        for (i = 0; i < currentGop.length; i++) {
-          currentFrame = currentGop[i]; // For each NAL..
-
-          for (j = 0; j < currentFrame.length; j++) {
-            currentNal = currentFrame[j];
-            view.setUint32(dataOffset, currentNal.data.byteLength);
-            dataOffset += 4;
-            data.set(currentNal.data, dataOffset);
-            dataOffset += currentNal.data.byteLength;
-          }
-        }
-      }
-      return data;
-    }; // generate the track's sample table from a frame
-
-    var generateSampleTableForFrame = function (frame, baseDataOffset) {
-      var sample,
-        dataOffset = baseDataOffset || 0,
-        samples = [];
-      sample = sampleForFrame(frame, dataOffset);
-      samples.push(sample);
-      return samples;
-    }; // generate the track's raw mdat data from a frame
-
-    var concatenateNalDataForFrame = function (frame) {
-      var i,
-        currentNal,
-        dataOffset = 0,
-        nalsByteLength = frame.byteLength,
-        numberOfNals = frame.length,
-        totalByteLength = nalsByteLength + 4 * numberOfNals,
-        data = new Uint8Array(totalByteLength),
-        view = new DataView(data.buffer); // For each NAL..
-
-      for (i = 0; i < frame.length; i++) {
-        currentNal = frame[i];
-        view.setUint32(dataOffset, currentNal.data.byteLength);
-        dataOffset += 4;
-        data.set(currentNal.data, dataOffset);
-        dataOffset += currentNal.data.byteLength;
-      }
-      return data;
-    };
-    var frameUtils$1 = {
-      groupNalsIntoFrames: groupNalsIntoFrames,
-      groupFramesIntoGops: groupFramesIntoGops,
-      extendFirstKeyFrame: extendFirstKeyFrame,
-      generateSampleTable: generateSampleTable$1,
-      concatenateNalData: concatenateNalData,
-      generateSampleTableForFrame: generateSampleTableForFrame,
-      concatenateNalDataForFrame: concatenateNalDataForFrame
-    };
-    /**
-     * mux.js
-     *
-     * Copyright (c) Brightcove
-     * Licensed Apache-2.0 https://github.com/videojs/mux.js/blob/master/LICENSE
-     */
-
-    var highPrefix = [33, 16, 5, 32, 164, 27];
-    var lowPrefix = [33, 65, 108, 84, 1, 2, 4, 8, 168, 2, 4, 8, 17, 191, 252];
-    var zeroFill = function (count) {
-      var a = [];
-      while (count--) {
-        a.push(0);
-      }
-      return a;
-    };
-    var makeTable = function (metaTable) {
-      return Object.keys(metaTable).reduce(function (obj, key) {
-        obj[key] = new Uint8Array(metaTable[key].reduce(function (arr, part) {
-          return arr.concat(part);
-        }, []));
-        return obj;
-      }, {});
-    };
-    var silence;
-    var silence_1 = function () {
-      if (!silence) {
-        // Frames-of-silence to use for filling in missing AAC frames
-        var coneOfSilence = {
-          96000: [highPrefix, [227, 64], zeroFill(154), [56]],
-          88200: [highPrefix, [231], zeroFill(170), [56]],
-          64000: [highPrefix, [248, 192], zeroFill(240), [56]],
-          48000: [highPrefix, [255, 192], zeroFill(268), [55, 148, 128], zeroFill(54), [112]],
-          44100: [highPrefix, [255, 192], zeroFill(268), [55, 163, 128], zeroFill(84), [112]],
-          32000: [highPrefix, [255, 192], zeroFill(268), [55, 234], zeroFill(226), [112]],
-          24000: [highPrefix, [255, 192], zeroFill(268), [55, 255, 128], zeroFill(268), [111, 112], zeroFill(126), [224]],
-          16000: [highPrefix, [255, 192], zeroFill(268), [55, 255, 128], zeroFill(268), [111, 255], zeroFill(269), [223, 108], zeroFill(195), [1, 192]],
-          12000: [lowPrefix, zeroFill(268), [3, 127, 248], zeroFill(268), [6, 255, 240], zeroFill(268), [13, 255, 224], zeroFill(268), [27, 253, 128], zeroFill(259), [56]],
-          11025: [lowPrefix, zeroFill(268), [3, 127, 248], zeroFill(268), [6, 255, 240], zeroFill(268), [13, 255, 224], zeroFill(268), [27, 255, 192], zeroFill(268), [55, 175, 128], zeroFill(108), [112]],
-          8000: [lowPrefix, zeroFill(268), [3, 121, 16], zeroFill(47), [7]]
-        };
-        silence = makeTable(coneOfSilence);
-      }
-      return silence;
-    };
-    /**
-     * mux.js
-     *
-     * Copyright (c) Brightcove
-     * Licensed Apache-2.0 https://github.com/videojs/mux.js/blob/master/LICENSE
-     */
-
-    var ONE_SECOND_IN_TS$4 = 90000,
-      // 90kHz clock
-      secondsToVideoTs,
-      secondsToAudioTs,
-      videoTsToSeconds,
-      audioTsToSeconds,
-      audioTsToVideoTs,
-      videoTsToAudioTs,
-      metadataTsToSeconds;
-    secondsToVideoTs = function (seconds) {
-      return seconds * ONE_SECOND_IN_TS$4;
-    };
-    secondsToAudioTs = function (seconds, sampleRate) {
-      return seconds * sampleRate;
-    };
-    videoTsToSeconds = function (timestamp) {
-      return timestamp / ONE_SECOND_IN_TS$4;
-    };
-    audioTsToSeconds = function (timestamp, sampleRate) {
-      return timestamp / sampleRate;
-    };
-    audioTsToVideoTs = function (timestamp, sampleRate) {
-      return secondsToVideoTs(audioTsToSeconds(timestamp, sampleRate));
-    };
-    videoTsToAudioTs = function (timestamp, sampleRate) {
-      return secondsToAudioTs(videoTsToSeconds(timestamp), sampleRate);
-    };
-    /**
-     * Adjust ID3 tag or caption timing information by the timeline pts values
-     * (if keepOriginalTimestamps is false) and convert to seconds
-     */
-
-    metadataTsToSeconds = function (timestamp, timelineStartPts, keepOriginalTimestamps) {
-      return videoTsToSeconds(keepOriginalTimestamps ? timestamp : timestamp - timelineStartPts);
-    };
-    var clock$2 = {
-      ONE_SECOND_IN_TS: ONE_SECOND_IN_TS$4,
-      secondsToVideoTs: secondsToVideoTs,
-      secondsToAudioTs: secondsToAudioTs,
-      videoTsToSeconds: videoTsToSeconds,
-      audioTsToSeconds: audioTsToSeconds,
-      audioTsToVideoTs: audioTsToVideoTs,
-      videoTsToAudioTs: videoTsToAudioTs,
-      metadataTsToSeconds: metadataTsToSeconds
-    };
-    /**
-     * mux.js
-     *
-     * Copyright (c) Brightcove
-     * Licensed Apache-2.0 https://github.com/videojs/mux.js/blob/master/LICENSE
-     */
-
-    var coneOfSilence = silence_1;
-    var clock$1 = clock$2;
-    /**
-     * Sum the `byteLength` properties of the data in each AAC frame
-     */
-
-    var sumFrameByteLengths = function (array) {
-      var i,
-        currentObj,
-        sum = 0; // sum the byteLength's all each nal unit in the frame
-
-      for (i = 0; i < array.length; i++) {
-        currentObj = array[i];
-        sum += currentObj.data.byteLength;
-      }
-      return sum;
-    }; // Possibly pad (prefix) the audio track with silence if appending this track
-    // would lead to the introduction of a gap in the audio buffer
-
-    var prefixWithSilence = function (track, frames, audioAppendStartTs, videoBaseMediaDecodeTime) {
-      var baseMediaDecodeTimeTs,
-        frameDuration = 0,
-        audioGapDuration = 0,
-        audioFillFrameCount = 0,
-        audioFillDuration = 0,
-        silentFrame,
-        i,
-        firstFrame;
-      if (!frames.length) {
-        return;
-      }
-      baseMediaDecodeTimeTs = clock$1.audioTsToVideoTs(track.baseMediaDecodeTime, track.samplerate); // determine frame clock duration based on sample rate, round up to avoid overfills
-
-      frameDuration = Math.ceil(clock$1.ONE_SECOND_IN_TS / (track.samplerate / 1024));
-      if (audioAppendStartTs && videoBaseMediaDecodeTime) {
-        // insert the shortest possible amount (audio gap or audio to video gap)
-        audioGapDuration = baseMediaDecodeTimeTs - Math.max(audioAppendStartTs, videoBaseMediaDecodeTime); // number of full frames in the audio gap
-
-        audioFillFrameCount = Math.floor(audioGapDuration / frameDuration);
-        audioFillDuration = audioFillFrameCount * frameDuration;
-      } // don't attempt to fill gaps smaller than a single frame or larger
-      // than a half second
-
-      if (audioFillFrameCount < 1 || audioFillDuration > clock$1.ONE_SECOND_IN_TS / 2) {
-        return;
-      }
-      silentFrame = coneOfSilence()[track.samplerate];
-      if (!silentFrame) {
-        // we don't have a silent frame pregenerated for the sample rate, so use a frame
-        // from the content instead
-        silentFrame = frames[0].data;
-      }
-      for (i = 0; i < audioFillFrameCount; i++) {
-        firstFrame = frames[0];
-        frames.splice(0, 0, {
-          data: silentFrame,
-          dts: firstFrame.dts - frameDuration,
-          pts: firstFrame.pts - frameDuration
-        });
-      }
-      track.baseMediaDecodeTime -= Math.floor(clock$1.videoTsToAudioTs(audioFillDuration, track.samplerate));
-      return audioFillDuration;
-    }; // If the audio segment extends before the earliest allowed dts
-    // value, remove AAC frames until starts at or after the earliest
-    // allowed DTS so that we don't end up with a negative baseMedia-
-    // DecodeTime for the audio track
-
-    var trimAdtsFramesByEarliestDts = function (adtsFrames, track, earliestAllowedDts) {
-      if (track.minSegmentDts >= earliestAllowedDts) {
-        return adtsFrames;
-      } // We will need to recalculate the earliest segment Dts
-
-      track.minSegmentDts = Infinity;
-      return adtsFrames.filter(function (currentFrame) {
-        // If this is an allowed frame, keep it and record it's Dts
-        if (currentFrame.dts >= earliestAllowedDts) {
-          track.minSegmentDts = Math.min(track.minSegmentDts, currentFrame.dts);
-          track.minSegmentPts = track.minSegmentDts;
-          return true;
-        } // Otherwise, discard it
-
-        return false;
-      });
-    }; // generate the track's raw mdat data from an array of frames
-
-    var generateSampleTable = function (frames) {
-      var i,
-        currentFrame,
-        samples = [];
-      for (i = 0; i < frames.length; i++) {
-        currentFrame = frames[i];
-        samples.push({
-          size: currentFrame.data.byteLength,
-          duration: 1024 // For AAC audio, all samples contain 1024 samples
-        });
-      }
-
-      return samples;
-    }; // generate the track's sample table from an array of frames
-
-    var concatenateFrameData = function (frames) {
-      var i,
-        currentFrame,
-        dataOffset = 0,
-        data = new Uint8Array(sumFrameByteLengths(frames));
-      for (i = 0; i < frames.length; i++) {
-        currentFrame = frames[i];
-        data.set(currentFrame.data, dataOffset);
-        dataOffset += currentFrame.data.byteLength;
-      }
-      return data;
-    };
-    var audioFrameUtils$1 = {
-      prefixWithSilence: prefixWithSilence,
-      trimAdtsFramesByEarliestDts: trimAdtsFramesByEarliestDts,
-      generateSampleTable: generateSampleTable,
-      concatenateFrameData: concatenateFrameData
-    };
-    /**
-     * mux.js
-     *
-     * Copyright (c) Brightcove
-     * Licensed Apache-2.0 https://github.com/videojs/mux.js/blob/master/LICENSE
-     */
-
-    var ONE_SECOND_IN_TS$3 = clock$2.ONE_SECOND_IN_TS;
-    /**
-     * Store information about the start and end of the track and the
-     * duration for each frame/sample we process in order to calculate
-     * the baseMediaDecodeTime
-     */
-
-    var collectDtsInfo = function (track, data) {
-      if (typeof data.pts === 'number') {
-        if (track.timelineStartInfo.pts === undefined) {
-          track.timelineStartInfo.pts = data.pts;
-        }
-        if (track.minSegmentPts === undefined) {
-          track.minSegmentPts = data.pts;
-        } else {
-          track.minSegmentPts = Math.min(track.minSegmentPts, data.pts);
-        }
-        if (track.maxSegmentPts === undefined) {
-          track.maxSegmentPts = data.pts;
-        } else {
-          track.maxSegmentPts = Math.max(track.maxSegmentPts, data.pts);
-        }
-      }
-      if (typeof data.dts === 'number') {
-        if (track.timelineStartInfo.dts === undefined) {
-          track.timelineStartInfo.dts = data.dts;
-        }
-        if (track.minSegmentDts === undefined) {
-          track.minSegmentDts = data.dts;
-        } else {
-          track.minSegmentDts = Math.min(track.minSegmentDts, data.dts);
-        }
-        if (track.maxSegmentDts === undefined) {
-          track.maxSegmentDts = data.dts;
-        } else {
-          track.maxSegmentDts = Math.max(track.maxSegmentDts, data.dts);
-        }
-      }
-    };
-    /**
-     * Clear values used to calculate the baseMediaDecodeTime between
-     * tracks
-     */
-
-    var clearDtsInfo = function (track) {
-      delete track.minSegmentDts;
-      delete track.maxSegmentDts;
-      delete track.minSegmentPts;
-      delete track.maxSegmentPts;
-    };
-    /**
-     * Calculate the track's baseMediaDecodeTime based on the earliest
-     * DTS the transmuxer has ever seen and the minimum DTS for the
-     * current track
-     * @param track {object} track metadata configuration
-     * @param keepOriginalTimestamps {boolean} If true, keep the timestamps
-     *        in the source; false to adjust the first segment to start at 0.
-     */
-
-    var calculateTrackBaseMediaDecodeTime = function (track, keepOriginalTimestamps) {
-      var baseMediaDecodeTime,
-        scale,
-        minSegmentDts = track.minSegmentDts; // Optionally adjust the time so the first segment starts at zero.
-
-      if (!keepOriginalTimestamps) {
-        minSegmentDts -= track.timelineStartInfo.dts;
-      } // track.timelineStartInfo.baseMediaDecodeTime is the location, in time, where
-      // we want the start of the first segment to be placed
-
-      baseMediaDecodeTime = track.timelineStartInfo.baseMediaDecodeTime; // Add to that the distance this segment is from the very first
-
-      baseMediaDecodeTime += minSegmentDts; // baseMediaDecodeTime must not become negative
-
-      baseMediaDecodeTime = Math.max(0, baseMediaDecodeTime);
-      if (track.type === 'audio') {
-        // Audio has a different clock equal to the sampling_rate so we need to
-        // scale the PTS values into the clock rate of the track
-        scale = track.samplerate / ONE_SECOND_IN_TS$3;
-        baseMediaDecodeTime *= scale;
-        baseMediaDecodeTime = Math.floor(baseMediaDecodeTime);
-      }
-      return baseMediaDecodeTime;
-    };
-    var trackDecodeInfo$1 = {
-      clearDtsInfo: clearDtsInfo,
-      calculateTrackBaseMediaDecodeTime: calculateTrackBaseMediaDecodeTime,
-      collectDtsInfo: collectDtsInfo
-    };
-    /**
-     * mux.js
-     *
-     * Copyright (c) Brightcove
-     * Licensed Apache-2.0 https://github.com/videojs/mux.js/blob/master/LICENSE
-     *
-     * Reads in-band caption information from a video elementary
-     * stream. Captions must follow the CEA-708 standard for injection
-     * into an MPEG-2 transport streams.
-     * @see https://en.wikipedia.org/wiki/CEA-708
-     * @see https://www.gpo.gov/fdsys/pkg/CFR-2007-title47-vol1/pdf/CFR-2007-title47-vol1-sec15-119.pdf
-     */
-    // payload type field to indicate how they are to be
-    // interpreted. CEAS-708 caption content is always transmitted with
-    // payload type 0x04.
-
-    var USER_DATA_REGISTERED_ITU_T_T35 = 4,
-      RBSP_TRAILING_BITS = 128;
-    /**
-      * Parse a supplemental enhancement information (SEI) NAL unit.
-      * Stops parsing once a message of type ITU T T35 has been found.
-      *
-      * @param bytes {Uint8Array} the bytes of a SEI NAL unit
-      * @return {object} the parsed SEI payload
-      * @see Rec. ITU-T H.264, 7.3.2.3.1
-      */
-
-    var parseSei = function (bytes) {
-      var i = 0,
-        result = {
-          payloadType: -1,
-          payloadSize: 0
-        },
-        payloadType = 0,
-        payloadSize = 0; // go through the sei_rbsp parsing each each individual sei_message
-
-      while (i < bytes.byteLength) {
-        // stop once we have hit the end of the sei_rbsp
-        if (bytes[i] === RBSP_TRAILING_BITS) {
-          break;
-        } // Parse payload type
-
-        while (bytes[i] === 0xFF) {
-          payloadType += 255;
-          i++;
-        }
-        payloadType += bytes[i++]; // Parse payload size
-
-        while (bytes[i] === 0xFF) {
-          payloadSize += 255;
-          i++;
-        }
-        payloadSize += bytes[i++]; // this sei_message is a 608/708 caption so save it and break
-        // there can only ever be one caption message in a frame's sei
-
-        if (!result.payload && payloadType === USER_DATA_REGISTERED_ITU_T_T35) {
-          var userIdentifier = String.fromCharCode(bytes[i + 3], bytes[i + 4], bytes[i + 5], bytes[i + 6]);
-          if (userIdentifier === 'GA94') {
-            result.payloadType = payloadType;
-            result.payloadSize = payloadSize;
-            result.payload = bytes.subarray(i, i + payloadSize);
-            break;
-          } else {
-            result.payload = void 0;
-          }
-        } // skip the payload and parse the next message
-
-        i += payloadSize;
-        payloadType = 0;
-        payloadSize = 0;
-      }
-      return result;
-    }; // see ANSI/SCTE 128-1 (2013), section 8.1
-
-    var parseUserData = function (sei) {
-      // itu_t_t35_contry_code must be 181 (United States) for
-      // captions
-      if (sei.payload[0] !== 181) {
-        return null;
-      } // itu_t_t35_provider_code should be 49 (ATSC) for captions
-
-      if ((sei.payload[1] << 8 | sei.payload[2]) !== 49) {
-        return null;
-      } // the user_identifier should be "GA94" to indicate ATSC1 data
-
-      if (String.fromCharCode(sei.payload[3], sei.payload[4], sei.payload[5], sei.payload[6]) !== 'GA94') {
-        return null;
-      } // finally, user_data_type_code should be 0x03 for caption data
-
-      if (sei.payload[7] !== 0x03) {
-        return null;
-      } // return the user_data_type_structure and strip the trailing
-      // marker bits
-
-      return sei.payload.subarray(8, sei.payload.length - 1);
-    }; // see CEA-708-D, section 4.4
-
-    var parseCaptionPackets = function (pts, userData) {
-      var results = [],
-        i,
-        count,
-        offset,
-        data; // if this is just filler, return immediately
-
-      if (!(userData[0] & 0x40)) {
-        return results;
-      } // parse out the cc_data_1 and cc_data_2 fields
-
-      count = userData[0] & 0x1f;
-      for (i = 0; i < count; i++) {
-        offset = i * 3;
-        data = {
-          type: userData[offset + 2] & 0x03,
-          pts: pts
-        }; // capture cc data when cc_valid is 1
-
-        if (userData[offset + 2] & 0x04) {
-          data.ccData = userData[offset + 3] << 8 | userData[offset + 4];
-          results.push(data);
-        }
-      }
-      return results;
-    };
-    var discardEmulationPreventionBytes$1 = function (data) {
-      var length = data.byteLength,
-        emulationPreventionBytesPositions = [],
-        i = 1,
-        newLength,
-        newData; // Find all `Emulation Prevention Bytes`
-
-      while (i < length - 2) {
-        if (data[i] === 0 && data[i + 1] === 0 && data[i + 2] === 0x03) {
-          emulationPreventionBytesPositions.push(i + 2);
-          i += 2;
-        } else {
-          i++;
-        }
-      } // If no Emulation Prevention Bytes were found just return the original
-      // array
-
-      if (emulationPreventionBytesPositions.length === 0) {
-        return data;
-      } // Create a new array to hold the NAL unit data
-
-      newLength = length - emulationPreventionBytesPositions.length;
-      newData = new Uint8Array(newLength);
-      var sourceIndex = 0;
-      for (i = 0; i < newLength; sourceIndex++, i++) {
-        if (sourceIndex === emulationPreventionBytesPositions[0]) {
-          // Skip this byte
-          sourceIndex++; // Remove this position index
-
-          emulationPreventionBytesPositions.shift();
-        }
-        newData[i] = data[sourceIndex];
-      }
-      return newData;
-    }; // exports
-
-    var captionPacketParser = {
-      parseSei: parseSei,
-      parseUserData: parseUserData,
-      parseCaptionPackets: parseCaptionPackets,
-      discardEmulationPreventionBytes: discardEmulationPreventionBytes$1,
-      USER_DATA_REGISTERED_ITU_T_T35: USER_DATA_REGISTERED_ITU_T_T35
-    };
-    /**
-     * mux.js
-     *
-     * Copyright (c) Brightcove
-     * Licensed Apache-2.0 https://github.com/videojs/mux.js/blob/master/LICENSE
-     *
-     * Reads in-band caption information from a video elementary
-     * stream. Captions must follow the CEA-708 standard for injection
-     * into an MPEG-2 transport streams.
-     * @see https://en.wikipedia.org/wiki/CEA-708
-     * @see https://www.gpo.gov/fdsys/pkg/CFR-2007-title47-vol1/pdf/CFR-2007-title47-vol1-sec15-119.pdf
-     */
-    // Link To Transport
-    // -----------------
-
-    var Stream$7 = stream;
-    var cea708Parser = captionPacketParser;
-    var CaptionStream$2 = function (options) {
-      options = options || {};
-      CaptionStream$2.prototype.init.call(this); // parse708captions flag, default to true
-
-      this.parse708captions_ = typeof options.parse708captions === 'boolean' ? options.parse708captions : true;
-      this.captionPackets_ = [];
-      this.ccStreams_ = [new Cea608Stream(0, 0),
-      // eslint-disable-line no-use-before-define
-      new Cea608Stream(0, 1),
-      // eslint-disable-line no-use-before-define
-      new Cea608Stream(1, 0),
-      // eslint-disable-line no-use-before-define
-      new Cea608Stream(1, 1) // eslint-disable-line no-use-before-define
-      ];
-
-      if (this.parse708captions_) {
-        this.cc708Stream_ = new Cea708Stream({
-          captionServices: options.captionServices
-        }); // eslint-disable-line no-use-before-define
-      }
-
-      this.reset(); // forward data and done events from CCs to this CaptionStream
-
-      this.ccStreams_.forEach(function (cc) {
-        cc.on('data', this.trigger.bind(this, 'data'));
-        cc.on('partialdone', this.trigger.bind(this, 'partialdone'));
-        cc.on('done', this.trigger.bind(this, 'done'));
-      }, this);
-      if (this.parse708captions_) {
-        this.cc708Stream_.on('data', this.trigger.bind(this, 'data'));
-        this.cc708Stream_.on('partialdone', this.trigger.bind(this, 'partialdone'));
-        this.cc708Stream_.on('done', this.trigger.bind(this, 'done'));
-      }
-    };
-    CaptionStream$2.prototype = new Stream$7();
-    CaptionStream$2.prototype.push = function (event) {
-      var sei, userData, newCaptionPackets; // only examine SEI NALs
-
-      if (event.nalUnitType !== 'sei_rbsp') {
-        return;
-      } // parse the sei
-
-      sei = cea708Parser.parseSei(event.escapedRBSP); // no payload data, skip
-
-      if (!sei.payload) {
-        return;
-      } // ignore everything but user_data_registered_itu_t_t35
-
-      if (sei.payloadType !== cea708Parser.USER_DATA_REGISTERED_ITU_T_T35) {
-        return;
-      } // parse out the user data payload
-
-      userData = cea708Parser.parseUserData(sei); // ignore unrecognized userData
-
-      if (!userData) {
-        return;
-      } // Sometimes, the same segment # will be downloaded twice. To stop the
-      // caption data from being processed twice, we track the latest dts we've
-      // received and ignore everything with a dts before that. However, since
-      // data for a specific dts can be split across packets on either side of
-      // a segment boundary, we need to make sure we *don't* ignore the packets
-      // from the *next* segment that have dts === this.latestDts_. By constantly
-      // tracking the number of packets received with dts === this.latestDts_, we
-      // know how many should be ignored once we start receiving duplicates.
-
-      if (event.dts < this.latestDts_) {
-        // We've started getting older data, so set the flag.
-        this.ignoreNextEqualDts_ = true;
-        return;
-      } else if (event.dts === this.latestDts_ && this.ignoreNextEqualDts_) {
-        this.numSameDts_--;
-        if (!this.numSameDts_) {
-          // We've received the last duplicate packet, time to start processing again
-          this.ignoreNextEqualDts_ = false;
-        }
-        return;
-      } // parse out CC data packets and save them for later
-
-      newCaptionPackets = cea708Parser.parseCaptionPackets(event.pts, userData);
-      this.captionPackets_ = this.captionPackets_.concat(newCaptionPackets);
-      if (this.latestDts_ !== event.dts) {
-        this.numSameDts_ = 0;
-      }
-      this.numSameDts_++;
-      this.latestDts_ = event.dts;
-    };
-    CaptionStream$2.prototype.flushCCStreams = function (flushType) {
-      this.ccStreams_.forEach(function (cc) {
-        return flushType === 'flush' ? cc.flush() : cc.partialFlush();
-      }, this);
-    };
-    CaptionStream$2.prototype.flushStream = function (flushType) {
-      // make sure we actually parsed captions before proceeding
-      if (!this.captionPackets_.length) {
-        this.flushCCStreams(flushType);
-        return;
-      } // In Chrome, the Array#sort function is not stable so add a
-      // presortIndex that we can use to ensure we get a stable-sort
-
-      this.captionPackets_.forEach(function (elem, idx) {
-        elem.presortIndex = idx;
-      }); // sort caption byte-pairs based on their PTS values
-
-      this.captionPackets_.sort(function (a, b) {
-        if (a.pts === b.pts) {
-          return a.presortIndex - b.presortIndex;
-        }
-        return a.pts - b.pts;
-      });
-      this.captionPackets_.forEach(function (packet) {
-        if (packet.type < 2) {
-          // Dispatch packet to the right Cea608Stream
-          this.dispatchCea608Packet(packet);
-        } else {
-          // Dispatch packet to the Cea708Stream
-          this.dispatchCea708Packet(packet);
-        }
-      }, this);
-      this.captionPackets_.length = 0;
-      this.flushCCStreams(flushType);
-    };
-    CaptionStream$2.prototype.flush = function () {
-      return this.flushStream('flush');
-    }; // Only called if handling partial data
-
-    CaptionStream$2.prototype.partialFlush = function () {
-      return this.flushStream('partialFlush');
-    };
-    CaptionStream$2.prototype.reset = function () {
-      this.latestDts_ = null;
-      this.ignoreNextEqualDts_ = false;
-      this.numSameDts_ = 0;
-      this.activeCea608Channel_ = [null, null];
-      this.ccStreams_.forEach(function (ccStream) {
-        ccStream.reset();
-      });
-    }; // From the CEA-608 spec:
-
-    /*
-     * When XDS sub-packets are interleaved with other services, the end of each sub-packet shall be followed
-     * by a control pair to change to a different service. When any of the control codes from 0x10 to 0x1F is
-     * used to begin a control code pair, it indicates the return to captioning or Text data. The control code pair
-     * and subsequent data should then be processed according to the FCC rules. It may be necessary for the
-     * line 21 data encoder to automatically insert a control code pair (i.e. RCL, RU2, RU3, RU4, RDC, or RTD)
-     * to switch to captioning or Text.
-    */
-    // With that in mind, we ignore any data between an XDS control code and a
-    // subsequent closed-captioning control code.
-
-    CaptionStream$2.prototype.dispatchCea608Packet = function (packet) {
-      // NOTE: packet.type is the CEA608 field
-      if (this.setsTextOrXDSActive(packet)) {
-        this.activeCea608Channel_[packet.type] = null;
-      } else if (this.setsChannel1Active(packet)) {
-        this.activeCea608Channel_[packet.type] = 0;
-      } else if (this.setsChannel2Active(packet)) {
-        this.activeCea608Channel_[packet.type] = 1;
-      }
-      if (this.activeCea608Channel_[packet.type] === null) {
-        // If we haven't received anything to set the active channel, or the
-        // packets are Text/XDS data, discard the data; we don't want jumbled
-        // captions
-        return;
-      }
-      this.ccStreams_[(packet.type << 1) + this.activeCea608Channel_[packet.type]].push(packet);
-    };
-    CaptionStream$2.prototype.setsChannel1Active = function (packet) {
-      return (packet.ccData & 0x7800) === 0x1000;
-    };
-    CaptionStream$2.prototype.setsChannel2Active = function (packet) {
-      return (packet.ccData & 0x7800) === 0x1800;
-    };
-    CaptionStream$2.prototype.setsTextOrXDSActive = function (packet) {
-      return (packet.ccData & 0x7100) === 0x0100 || (packet.ccData & 0x78fe) === 0x102a || (packet.ccData & 0x78fe) === 0x182a;
-    };
-    CaptionStream$2.prototype.dispatchCea708Packet = function (packet) {
-      if (this.parse708captions_) {
-        this.cc708Stream_.push(packet);
-      }
-    }; // ----------------------
-    // Session to Application
-    // ----------------------
-    // This hash maps special and extended character codes to their
-    // proper Unicode equivalent. The first one-byte key is just a
-    // non-standard character code. The two-byte keys that follow are
-    // the extended CEA708 character codes, along with the preceding
-    // 0x10 extended character byte to distinguish these codes from
-    // non-extended character codes. Every CEA708 character code that
-    // is not in this object maps directly to a standard unicode
-    // character code.
-    // The transparent space and non-breaking transparent space are
-    // technically not fully supported since there is no code to
-    // make them transparent, so they have normal non-transparent
-    // stand-ins.
-    // The special closed caption (CC) character isn't a standard
-    // unicode character, so a fairly similar unicode character was
-    // chosen in it's place.
-
-    var CHARACTER_TRANSLATION_708 = {
-      0x7f: 0x266a,
-      // ♪
-      0x1020: 0x20,
-      // Transparent Space
-      0x1021: 0xa0,
-      // Nob-breaking Transparent Space
-      0x1025: 0x2026,
-      // …
-      0x102a: 0x0160,
-      // Š
-      0x102c: 0x0152,
-      // Œ
-      0x1030: 0x2588,
-      // █
-      0x1031: 0x2018,
-      // ‘
-      0x1032: 0x2019,
-      // ’
-      0x1033: 0x201c,
-      // “
-      0x1034: 0x201d,
-      // ”
-      0x1035: 0x2022,
-      // •
-      0x1039: 0x2122,
-      // ™
-      0x103a: 0x0161,
-      // š
-      0x103c: 0x0153,
-      // œ
-      0x103d: 0x2120,
-      // ℠
-      0x103f: 0x0178,
-      // Ÿ
-      0x1076: 0x215b,
-      // ⅛
-      0x1077: 0x215c,
-      // ⅜
-      0x1078: 0x215d,
-      // ⅝
-      0x1079: 0x215e,
-      // ⅞
-      0x107a: 0x23d0,
-      // ⏐
-      0x107b: 0x23a4,
-      // ⎤
-      0x107c: 0x23a3,
-      // ⎣
-      0x107d: 0x23af,
-      // ⎯
-      0x107e: 0x23a6,
-      // ⎦
-      0x107f: 0x23a1,
-      // ⎡
-      0x10a0: 0x3138 // ㄸ (CC char)
-    };
-
-    var get708CharFromCode = function (code) {
-      var newCode = CHARACTER_TRANSLATION_708[code] || code;
-      if (code & 0x1000 && code === newCode) {
-        // Invalid extended code
-        return '';
-      }
-      return String.fromCharCode(newCode);
-    };
-    var within708TextBlock = function (b) {
-      return 0x20 <= b && b <= 0x7f || 0xa0 <= b && b <= 0xff;
-    };
-    var Cea708Window = function (windowNum) {
-      this.windowNum = windowNum;
-      this.reset();
-    };
-    Cea708Window.prototype.reset = function () {
-      this.clearText();
-      this.pendingNewLine = false;
-      this.winAttr = {};
-      this.penAttr = {};
-      this.penLoc = {};
-      this.penColor = {}; // These default values are arbitrary,
-      // defineWindow will usually override them
-
-      this.visible = 0;
-      this.rowLock = 0;
-      this.columnLock = 0;
-      this.priority = 0;
-      this.relativePositioning = 0;
-      this.anchorVertical = 0;
-      this.anchorHorizontal = 0;
-      this.anchorPoint = 0;
-      this.rowCount = 1;
-      this.virtualRowCount = this.rowCount + 1;
-      this.columnCount = 41;
-      this.windowStyle = 0;
-      this.penStyle = 0;
-    };
-    Cea708Window.prototype.getText = function () {
-      return this.rows.join('\n');
-    };
-    Cea708Window.prototype.clearText = function () {
-      this.rows = [''];
-      this.rowIdx = 0;
-    };
-    Cea708Window.prototype.newLine = function (pts) {
-      if (this.rows.length >= this.virtualRowCount && typeof this.beforeRowOverflow === 'function') {
-        this.beforeRowOverflow(pts);
-      }
-      if (this.rows.length > 0) {
-        this.rows.push('');
-        this.rowIdx++;
-      } // Show all virtual rows since there's no visible scrolling
-
-      while (this.rows.length > this.virtualRowCount) {
-        this.rows.shift();
-        this.rowIdx--;
-      }
-    };
-    Cea708Window.prototype.isEmpty = function () {
-      if (this.rows.length === 0) {
-        return true;
-      } else if (this.rows.length === 1) {
-        return this.rows[0] === '';
-      }
-      return false;
-    };
-    Cea708Window.prototype.addText = function (text) {
-      this.rows[this.rowIdx] += text;
-    };
-    Cea708Window.prototype.backspace = function () {
-      if (!this.isEmpty()) {
-        var row = this.rows[this.rowIdx];
-        this.rows[this.rowIdx] = row.substr(0, row.length - 1);
-      }
-    };
-    var Cea708Service = function (serviceNum, encoding, stream) {
-      this.serviceNum = serviceNum;
-      this.text = '';
-      this.currentWindow = new Cea708Window(-1);
-      this.windows = [];
-      this.stream = stream; // Try to setup a TextDecoder if an `encoding` value was provided
-
-      if (typeof encoding === 'string') {
-        this.createTextDecoder(encoding);
-      }
-    };
-    /**
-     * Initialize service windows
-     * Must be run before service use
-     *
-     * @param  {Integer}  pts               PTS value
-     * @param  {Function} beforeRowOverflow Function to execute before row overflow of a window
-     */
-
-    Cea708Service.prototype.init = function (pts, beforeRowOverflow) {
-      this.startPts = pts;
-      for (var win = 0; win < 8; win++) {
-        this.windows[win] = new Cea708Window(win);
-        if (typeof beforeRowOverflow === 'function') {
-          this.windows[win].beforeRowOverflow = beforeRowOverflow;
-        }
-      }
-    };
-    /**
-     * Set current window of service to be affected by commands
-     *
-     * @param  {Integer} windowNum Window number
-     */
-
-    Cea708Service.prototype.setCurrentWindow = function (windowNum) {
-      this.currentWindow = this.windows[windowNum];
-    };
-    /**
-     * Try to create a TextDecoder if it is natively supported
-     */
-
-    Cea708Service.prototype.createTextDecoder = function (encoding) {
-      if (typeof TextDecoder === 'undefined') {
-        this.stream.trigger('log', {
-          level: 'warn',
-          message: 'The `encoding` option is unsupported without TextDecoder support'
-        });
-      } else {
-        try {
-          this.textDecoder_ = new TextDecoder(encoding);
-        } catch (error) {
-          this.stream.trigger('log', {
-            level: 'warn',
-            message: 'TextDecoder could not be created with ' + encoding + ' encoding. ' + error
-          });
-        }
-      }
-    };
-    var Cea708Stream = function (options) {
-      options = options || {};
-      Cea708Stream.prototype.init.call(this);
-      var self = this;
-      var captionServices = options.captionServices || {};
-      var captionServiceEncodings = {};
-      var serviceProps; // Get service encodings from captionServices option block
-
-      Object.keys(captionServices).forEach(serviceName => {
-        serviceProps = captionServices[serviceName];
-        if (/^SERVICE/.test(serviceName)) {
-          captionServiceEncodings[serviceName] = serviceProps.encoding;
-        }
-      });
-      this.serviceEncodings = captionServiceEncodings;
-      this.current708Packet = null;
-      this.services = {};
-      this.push = function (packet) {
-        if (packet.type === 3) {
-          // 708 packet start
-          self.new708Packet();
-          self.add708Bytes(packet);
-        } else {
-          if (self.current708Packet === null) {
-            // This should only happen at the start of a file if there's no packet start.
-            self.new708Packet();
-          }
-          self.add708Bytes(packet);
-        }
-      };
-    };
-    Cea708Stream.prototype = new Stream$7();
-    /**
-     * Push current 708 packet, create new 708 packet.
-     */
-
-    Cea708Stream.prototype.new708Packet = function () {
-      if (this.current708Packet !== null) {
-        this.push708Packet();
-      }
-      this.current708Packet = {
-        data: [],
-        ptsVals: []
-      };
-    };
-    /**
-     * Add pts and both bytes from packet into current 708 packet.
-     */
-
-    Cea708Stream.prototype.add708Bytes = function (packet) {
-      var data = packet.ccData;
-      var byte0 = data >>> 8;
-      var byte1 = data & 0xff; // I would just keep a list of packets instead of bytes, but it isn't clear in the spec
-      // that service blocks will always line up with byte pairs.
-
-      this.current708Packet.ptsVals.push(packet.pts);
-      this.current708Packet.data.push(byte0);
-      this.current708Packet.data.push(byte1);
-    };
-    /**
-     * Parse completed 708 packet into service blocks and push each service block.
-     */
-
-    Cea708Stream.prototype.push708Packet = function () {
-      var packet708 = this.current708Packet;
-      var packetData = packet708.data;
-      var serviceNum = null;
-      var blockSize = null;
-      var i = 0;
-      var b = packetData[i++];
-      packet708.seq = b >> 6;
-      packet708.sizeCode = b & 0x3f; // 0b00111111;
-
-      for (; i < packetData.length; i++) {
-        b = packetData[i++];
-        serviceNum = b >> 5;
-        blockSize = b & 0x1f; // 0b00011111
-
-        if (serviceNum === 7 && blockSize > 0) {
-          // Extended service num
-          b = packetData[i++];
-          serviceNum = b;
-        }
-        this.pushServiceBlock(serviceNum, i, blockSize);
-        if (blockSize > 0) {
-          i += blockSize - 1;
-        }
-      }
-    };
-    /**
-     * Parse service block, execute commands, read text.
-     *
-     * Note: While many of these commands serve important purposes,
-     * many others just parse out the parameters or attributes, but
-     * nothing is done with them because this is not a full and complete
-     * implementation of the entire 708 spec.
-     *
-     * @param  {Integer} serviceNum Service number
-     * @param  {Integer} start      Start index of the 708 packet data
-     * @param  {Integer} size       Block size
-     */
-
-    Cea708Stream.prototype.pushServiceBlock = function (serviceNum, start, size) {
-      var b;
-      var i = start;
-      var packetData = this.current708Packet.data;
-      var service = this.services[serviceNum];
-      if (!service) {
-        service = this.initService(serviceNum, i);
-      }
-      for (; i < start + size && i < packetData.length; i++) {
-        b = packetData[i];
-        if (within708TextBlock(b)) {
-          i = this.handleText(i, service);
-        } else if (b === 0x18) {
-          i = this.multiByteCharacter(i, service);
-        } else if (b === 0x10) {
-          i = this.extendedCommands(i, service);
-        } else if (0x80 <= b && b <= 0x87) {
-          i = this.setCurrentWindow(i, service);
-        } else if (0x98 <= b && b <= 0x9f) {
-          i = this.defineWindow(i, service);
-        } else if (b === 0x88) {
-          i = this.clearWindows(i, service);
-        } else if (b === 0x8c) {
-          i = this.deleteWindows(i, service);
-        } else if (b === 0x89) {
-          i = this.displayWindows(i, service);
-        } else if (b === 0x8a) {
-          i = this.hideWindows(i, service);
-        } else if (b === 0x8b) {
-          i = this.toggleWindows(i, service);
-        } else if (b === 0x97) {
-          i = this.setWindowAttributes(i, service);
-        } else if (b === 0x90) {
-          i = this.setPenAttributes(i, service);
-        } else if (b === 0x91) {
-          i = this.setPenColor(i, service);
-        } else if (b === 0x92) {
-          i = this.setPenLocation(i, service);
-        } else if (b === 0x8f) {
-          service = this.reset(i, service);
-        } else if (b === 0x08) {
-          // BS: Backspace
-          service.currentWindow.backspace();
-        } else if (b === 0x0c) {
-          // FF: Form feed
-          service.currentWindow.clearText();
-        } else if (b === 0x0d) {
-          // CR: Carriage return
-          service.currentWindow.pendingNewLine = true;
-        } else if (b === 0x0e) {
-          // HCR: Horizontal carriage return
-          service.currentWindow.clearText();
-        } else if (b === 0x8d) {
-          // DLY: Delay, nothing to do
-          i++;
-        } else ;
-      }
-    };
-    /**
-     * Execute an extended command
-     *
-     * @param  {Integer} i        Current index in the 708 packet
-     * @param  {Service} service  The service object to be affected
-     * @return {Integer}          New index after parsing
-     */
-
-    Cea708Stream.prototype.extendedCommands = function (i, service) {
-      var packetData = this.current708Packet.data;
-      var b = packetData[++i];
-      if (within708TextBlock(b)) {
-        i = this.handleText(i, service, {
-          isExtended: true
-        });
-      }
-      return i;
-    };
-    /**
-     * Get PTS value of a given byte index
-     *
-     * @param  {Integer} byteIndex  Index of the byte
-     * @return {Integer}            PTS
-     */
-
-    Cea708Stream.prototype.getPts = function (byteIndex) {
-      // There's 1 pts value per 2 bytes
-      return this.current708Packet.ptsVals[Math.floor(byteIndex / 2)];
-    };
-    /**
-     * Initializes a service
-     *
-     * @param  {Integer} serviceNum Service number
-     * @return {Service}            Initialized service object
-     */
-
-    Cea708Stream.prototype.initService = function (serviceNum, i) {
-      var serviceName = 'SERVICE' + serviceNum;
-      var self = this;
-      var serviceName;
-      var encoding;
-      if (serviceName in this.serviceEncodings) {
-        encoding = this.serviceEncodings[serviceName];
-      }
-      this.services[serviceNum] = new Cea708Service(serviceNum, encoding, self);
-      this.services[serviceNum].init(this.getPts(i), function (pts) {
-        self.flushDisplayed(pts, self.services[serviceNum]);
-      });
-      return this.services[serviceNum];
-    };
-    /**
-     * Execute text writing to current window
-     *
-     * @param  {Integer} i        Current index in the 708 packet
-     * @param  {Service} service  The service object to be affected
-     * @return {Integer}          New index after parsing
-     */
-
-    Cea708Stream.prototype.handleText = function (i, service, options) {
-      var isExtended = options && options.isExtended;
-      var isMultiByte = options && options.isMultiByte;
-      var packetData = this.current708Packet.data;
-      var extended = isExtended ? 0x1000 : 0x0000;
-      var currentByte = packetData[i];
-      var nextByte = packetData[i + 1];
-      var win = service.currentWindow;
-      var char;
-      var charCodeArray; // Converts an array of bytes to a unicode hex string.
-
-      function toHexString(byteArray) {
-        return byteArray.map(byte => {
-          return ('0' + (byte & 0xFF).toString(16)).slice(-2);
-        }).join('');
-      }
-      if (isMultiByte) {
-        charCodeArray = [currentByte, nextByte];
-        i++;
-      } else {
-        charCodeArray = [currentByte];
-      } // Use the TextDecoder if one was created for this service
-
-      if (service.textDecoder_ && !isExtended) {
-        char = service.textDecoder_.decode(new Uint8Array(charCodeArray));
-      } else {
-        // We assume any multi-byte char without a decoder is unicode.
-        if (isMultiByte) {
-          const unicode = toHexString(charCodeArray); // Takes a unicode hex string and creates a single character.
-
-          char = String.fromCharCode(parseInt(unicode, 16));
-        } else {
-          char = get708CharFromCode(extended | currentByte);
-        }
-      }
-      if (win.pendingNewLine && !win.isEmpty()) {
-        win.newLine(this.getPts(i));
-      }
-      win.pendingNewLine = false;
-      win.addText(char);
-      return i;
-    };
-    /**
-     * Handle decoding of multibyte character
-     *
-     * @param  {Integer} i        Current index in the 708 packet
-     * @param  {Service} service  The service object to be affected
-     * @return {Integer}          New index after parsing
-     */
-
-    Cea708Stream.prototype.multiByteCharacter = function (i, service) {
-      var packetData = this.current708Packet.data;
-      var firstByte = packetData[i + 1];
-      var secondByte = packetData[i + 2];
-      if (within708TextBlock(firstByte) && within708TextBlock(secondByte)) {
-        i = this.handleText(++i, service, {
-          isMultiByte: true
-        });
-      }
-      return i;
-    };
-    /**
-     * Parse and execute the CW# command.
-     *
-     * Set the current window.
-     *
-     * @param  {Integer} i        Current index in the 708 packet
-     * @param  {Service} service  The service object to be affected
-     * @return {Integer}          New index after parsing
-     */
-
-    Cea708Stream.prototype.setCurrentWindow = function (i, service) {
-      var packetData = this.current708Packet.data;
-      var b = packetData[i];
-      var windowNum = b & 0x07;
-      service.setCurrentWindow(windowNum);
-      return i;
-    };
-    /**
-     * Parse and execute the DF# command.
-     *
-     * Define a window and set it as the current window.
-     *
-     * @param  {Integer} i        Current index in the 708 packet
-     * @param  {Service} service  The service object to be affected
-     * @return {Integer}          New index after parsing
-     */
-
-    Cea708Stream.prototype.defineWindow = function (i, service) {
-      var packetData = this.current708Packet.data;
-      var b = packetData[i];
-      var windowNum = b & 0x07;
-      service.setCurrentWindow(windowNum);
-      var win = service.currentWindow;
-      b = packetData[++i];
-      win.visible = (b & 0x20) >> 5; // v
-
-      win.rowLock = (b & 0x10) >> 4; // rl
-
-      win.columnLock = (b & 0x08) >> 3; // cl
-
-      win.priority = b & 0x07; // p
-
-      b = packetData[++i];
-      win.relativePositioning = (b & 0x80) >> 7; // rp
-
-      win.anchorVertical = b & 0x7f; // av
-
-      b = packetData[++i];
-      win.anchorHorizontal = b; // ah
-
-      b = packetData[++i];
-      win.anchorPoint = (b & 0xf0) >> 4; // ap
-
-      win.rowCount = b & 0x0f; // rc
-
-      b = packetData[++i];
-      win.columnCount = b & 0x3f; // cc
-
-      b = packetData[++i];
-      win.windowStyle = (b & 0x38) >> 3; // ws
-
-      win.penStyle = b & 0x07; // ps
-      // The spec says there are (rowCount+1) "virtual rows"
-
-      win.virtualRowCount = win.rowCount + 1;
-      return i;
-    };
-    /**
-     * Parse and execute the SWA command.
-     *
-     * Set attributes of the current window.
-     *
-     * @param  {Integer} i        Current index in the 708 packet
-     * @param  {Service} service  The service object to be affected
-     * @return {Integer}          New index after parsing
-     */
-
-    Cea708Stream.prototype.setWindowAttributes = function (i, service) {
-      var packetData = this.current708Packet.data;
-      var b = packetData[i];
-      var winAttr = service.currentWindow.winAttr;
-      b = packetData[++i];
-      winAttr.fillOpacity = (b & 0xc0) >> 6; // fo
-
-      winAttr.fillRed = (b & 0x30) >> 4; // fr
-
-      winAttr.fillGreen = (b & 0x0c) >> 2; // fg
-
-      winAttr.fillBlue = b & 0x03; // fb
-
-      b = packetData[++i];
-      winAttr.borderType = (b & 0xc0) >> 6; // bt
-
-      winAttr.borderRed = (b & 0x30) >> 4; // br
-
-      winAttr.borderGreen = (b & 0x0c) >> 2; // bg
-
-      winAttr.borderBlue = b & 0x03; // bb
-
-      b = packetData[++i];
-      winAttr.borderType += (b & 0x80) >> 5; // bt
-
-      winAttr.wordWrap = (b & 0x40) >> 6; // ww
-
-      winAttr.printDirection = (b & 0x30) >> 4; // pd
-
-      winAttr.scrollDirection = (b & 0x0c) >> 2; // sd
-
-      winAttr.justify = b & 0x03; // j
-
-      b = packetData[++i];
-      winAttr.effectSpeed = (b & 0xf0) >> 4; // es
-
-      winAttr.effectDirection = (b & 0x0c) >> 2; // ed
-
-      winAttr.displayEffect = b & 0x03; // de
-
-      return i;
-    };
-    /**
-     * Gather text from all displayed windows and push a caption to output.
-     *
-     * @param  {Integer} i        Current index in the 708 packet
-     * @param  {Service} service  The service object to be affected
-     */
-
-    Cea708Stream.prototype.flushDisplayed = function (pts, service) {
-      var displayedText = []; // TODO: Positioning not supported, displaying multiple windows will not necessarily
-      // display text in the correct order, but sample files so far have not shown any issue.
-
-      for (var winId = 0; winId < 8; winId++) {
-        if (service.windows[winId].visible && !service.windows[winId].isEmpty()) {
-          displayedText.push(service.windows[winId].getText());
-        }
-      }
-      service.endPts = pts;
-      service.text = displayedText.join('\n\n');
-      this.pushCaption(service);
-      service.startPts = pts;
-    };
-    /**
-     * Push a caption to output if the caption contains text.
-     *
-     * @param  {Service} service  The service object to be affected
-     */
-
-    Cea708Stream.prototype.pushCaption = function (service) {
-      if (service.text !== '') {
-        this.trigger('data', {
-          startPts: service.startPts,
-          endPts: service.endPts,
-          text: service.text,
-          stream: 'cc708_' + service.serviceNum
-        });
-        service.text = '';
-        service.startPts = service.endPts;
-      }
-    };
-    /**
-     * Parse and execute the DSW command.
-     *
-     * Set visible property of windows based on the parsed bitmask.
-     *
-     * @param  {Integer} i        Current index in the 708 packet
-     * @param  {Service} service  The service object to be affected
-     * @return {Integer}          New index after parsing
-     */
-
-    Cea708Stream.prototype.displayWindows = function (i, service) {
-      var packetData = this.current708Packet.data;
-      var b = packetData[++i];
-      var pts = this.getPts(i);
-      this.flushDisplayed(pts, service);
-      for (var winId = 0; winId < 8; winId++) {
-        if (b & 0x01 << winId) {
-          service.windows[winId].visible = 1;
-        }
-      }
-      return i;
-    };
-    /**
-     * Parse and execute the HDW command.
-     *
-     * Set visible property of windows based on the parsed bitmask.
-     *
-     * @param  {Integer} i        Current index in the 708 packet
-     * @param  {Service} service  The service object to be affected
-     * @return {Integer}          New index after parsing
-     */
-
-    Cea708Stream.prototype.hideWindows = function (i, service) {
-      var packetData = this.current708Packet.data;
-      var b = packetData[++i];
-      var pts = this.getPts(i);
-      this.flushDisplayed(pts, service);
-      for (var winId = 0; winId < 8; winId++) {
-        if (b & 0x01 << winId) {
-          service.windows[winId].visible = 0;
-        }
-      }
-      return i;
-    };
-    /**
-     * Parse and execute the TGW command.
-     *
-     * Set visible property of windows based on the parsed bitmask.
-     *
-     * @param  {Integer} i        Current index in the 708 packet
-     * @param  {Service} service  The service object to be affected
-     * @return {Integer}          New index after parsing
-     */
-
-    Cea708Stream.prototype.toggleWindows = function (i, service) {
-      var packetData = this.current708Packet.data;
-      var b = packetData[++i];
-      var pts = this.getPts(i);
-      this.flushDisplayed(pts, service);
-      for (var winId = 0; winId < 8; winId++) {
-        if (b & 0x01 << winId) {
-          service.windows[winId].visible ^= 1;
-        }
-      }
-      return i;
-    };
-    /**
-     * Parse and execute the CLW command.
-     *
-     * Clear text of windows based on the parsed bitmask.
-     *
-     * @param  {Integer} i        Current index in the 708 packet
-     * @param  {Service} service  The service object to be affected
-     * @return {Integer}          New index after parsing
-     */
-
-    Cea708Stream.prototype.clearWindows = function (i, service) {
-      var packetData = this.current708Packet.data;
-      var b = packetData[++i];
-      var pts = this.getPts(i);
-      this.flushDisplayed(pts, service);
-      for (var winId = 0; winId < 8; winId++) {
-        if (b & 0x01 << winId) {
-          service.windows[winId].clearText();
-        }
-      }
-      return i;
-    };
-    /**
-     * Parse and execute the DLW command.
-     *
-     * Re-initialize windows based on the parsed bitmask.
-     *
-     * @param  {Integer} i        Current index in the 708 packet
-     * @param  {Service} service  The service object to be affected
-     * @return {Integer}          New index after parsing
-     */
-
-    Cea708Stream.prototype.deleteWindows = function (i, service) {
-      var packetData = this.current708Packet.data;
-      var b = packetData[++i];
-      var pts = this.getPts(i);
-      this.flushDisplayed(pts, service);
-      for (var winId = 0; winId < 8; winId++) {
-        if (b & 0x01 << winId) {
-          service.windows[winId].reset();
-        }
-      }
-      return i;
-    };
-    /**
-     * Parse and execute the SPA command.
-     *
-     * Set pen attributes of the current window.
-     *
-     * @param  {Integer} i        Current index in the 708 packet
-     * @param  {Service} service  The service object to be affected
-     * @return {Integer}          New index after parsing
-     */
-
-    Cea708Stream.prototype.setPenAttributes = function (i, service) {
-      var packetData = this.current708Packet.data;
-      var b = packetData[i];
-      var penAttr = service.currentWindow.penAttr;
-      b = packetData[++i];
-      penAttr.textTag = (b & 0xf0) >> 4; // tt
-
-      penAttr.offset = (b & 0x0c) >> 2; // o
-
-      penAttr.penSize = b & 0x03; // s
-
-      b = packetData[++i];
-      penAttr.italics = (b & 0x80) >> 7; // i
-
-      penAttr.underline = (b & 0x40) >> 6; // u
-
-      penAttr.edgeType = (b & 0x38) >> 3; // et
-
-      penAttr.fontStyle = b & 0x07; // fs
-
-      return i;
-    };
-    /**
-     * Parse and execute the SPC command.
-     *
-     * Set pen color of the current window.
-     *
-     * @param  {Integer} i        Current index in the 708 packet
-     * @param  {Service} service  The service object to be affected
-     * @return {Integer}          New index after parsing
-     */
-
-    Cea708Stream.prototype.setPenColor = function (i, service) {
-      var packetData = this.current708Packet.data;
-      var b = packetData[i];
-      var penColor = service.currentWindow.penColor;
-      b = packetData[++i];
-      penColor.fgOpacity = (b & 0xc0) >> 6; // fo
-
-      penColor.fgRed = (b & 0x30) >> 4; // fr
-
-      penColor.fgGreen = (b & 0x0c) >> 2; // fg
-
-      penColor.fgBlue = b & 0x03; // fb
-
-      b = packetData[++i];
-      penColor.bgOpacity = (b & 0xc0) >> 6; // bo
-
-      penColor.bgRed = (b & 0x30) >> 4; // br
-
-      penColor.bgGreen = (b & 0x0c) >> 2; // bg
-
-      penColor.bgBlue = b & 0x03; // bb
-
-      b = packetData[++i];
-      penColor.edgeRed = (b & 0x30) >> 4; // er
-
-      penColor.edgeGreen = (b & 0x0c) >> 2; // eg
-
-      penColor.edgeBlue = b & 0x03; // eb
-
-      return i;
-    };
-    /**
-     * Parse and execute the SPL command.
-     *
-     * Set pen location of the current window.
-     *
-     * @param  {Integer} i        Current index in the 708 packet
-     * @param  {Service} service  The service object to be affected
-     * @return {Integer}          New index after parsing
-     */
-
-    Cea708Stream.prototype.setPenLocation = function (i, service) {
-      var packetData = this.current708Packet.data;
-      var b = packetData[i];
-      var penLoc = service.currentWindow.penLoc; // Positioning isn't really supported at the moment, so this essentially just inserts a linebreak
-
-      service.currentWindow.pendingNewLine = true;
-      b = packetData[++i];
-      penLoc.row = b & 0x0f; // r
-
-      b = packetData[++i];
-      penLoc.column = b & 0x3f; // c
-
-      return i;
-    };
-    /**
-     * Execute the RST command.
-     *
-     * Reset service to a clean slate. Re-initialize.
-     *
-     * @param  {Integer} i        Current index in the 708 packet
-     * @param  {Service} service  The service object to be affected
-     * @return {Service}          Re-initialized service
-     */
-
-    Cea708Stream.prototype.reset = function (i, service) {
-      var pts = this.getPts(i);
-      this.flushDisplayed(pts, service);
-      return this.initService(service.serviceNum, i);
-    }; // This hash maps non-ASCII, special, and extended character codes to their
-    // proper Unicode equivalent. The first keys that are only a single byte
-    // are the non-standard ASCII characters, which simply map the CEA608 byte
-    // to the standard ASCII/Unicode. The two-byte keys that follow are the CEA608
-    // character codes, but have their MSB bitmasked with 0x03 so that a lookup
-    // can be performed regardless of the field and data channel on which the
-    // character code was received.
-
-    var CHARACTER_TRANSLATION = {
-      0x2a: 0xe1,
-      // á
-      0x5c: 0xe9,
-      // é
-      0x5e: 0xed,
-      // í
-      0x5f: 0xf3,
-      // ó
-      0x60: 0xfa,
-      // ú
-      0x7b: 0xe7,
-      // ç
-      0x7c: 0xf7,
-      // ÷
-      0x7d: 0xd1,
-      // Ñ
-      0x7e: 0xf1,
-      // ñ
-      0x7f: 0x2588,
-      // █
-      0x0130: 0xae,
-      // ®
-      0x0131: 0xb0,
-      // °
-      0x0132: 0xbd,
-      // ½
-      0x0133: 0xbf,
-      // ¿
-      0x0134: 0x2122,
-      // ™
-      0x0135: 0xa2,
-      // ¢
-      0x0136: 0xa3,
-      // £
-      0x0137: 0x266a,
-      // ♪
-      0x0138: 0xe0,
-      // à
-      0x0139: 0xa0,
-      //
-      0x013a: 0xe8,
-      // è
-      0x013b: 0xe2,
-      // â
-      0x013c: 0xea,
-      // ê
-      0x013d: 0xee,
-      // î
-      0x013e: 0xf4,
-      // ô
-      0x013f: 0xfb,
-      // û
-      0x0220: 0xc1,
-      // Á
-      0x0221: 0xc9,
-      // É
-      0x0222: 0xd3,
-      // Ó
-      0x0223: 0xda,
-      // Ú
-      0x0224: 0xdc,
-      // Ü
-      0x0225: 0xfc,
-      // ü
-      0x0226: 0x2018,
-      // ‘
-      0x0227: 0xa1,
-      // ¡
-      0x0228: 0x2a,
-      // *
-      0x0229: 0x27,
-      // '
-      0x022a: 0x2014,
-      // —
-      0x022b: 0xa9,
-      // ©
-      0x022c: 0x2120,
-      // ℠
-      0x022d: 0x2022,
-      // •
-      0x022e: 0x201c,
-      // “
-      0x022f: 0x201d,
-      // ”
-      0x0230: 0xc0,
-      // À
-      0x0231: 0xc2,
-      // Â
-      0x0232: 0xc7,
-      // Ç
-      0x0233: 0xc8,
-      // È
-      0x0234: 0xca,
-      // Ê
-      0x0235: 0xcb,
-      // Ë
-      0x0236: 0xeb,
-      // ë
-      0x0237: 0xce,
-      // Î
-      0x0238: 0xcf,
-      // Ï
-      0x0239: 0xef,
-      // ï
-      0x023a: 0xd4,
-      // Ô
-      0x023b: 0xd9,
-      // Ù
-      0x023c: 0xf9,
-      // ù
-      0x023d: 0xdb,
-      // Û
-      0x023e: 0xab,
-      // «
-      0x023f: 0xbb,
-      // »
-      0x0320: 0xc3,
-      // Ã
-      0x0321: 0xe3,
-      // ã
-      0x0322: 0xcd,
-      // Í
-      0x0323: 0xcc,
-      // Ì
-      0x0324: 0xec,
-      // ì
-      0x0325: 0xd2,
-      // Ò
-      0x0326: 0xf2,
-      // ò
-      0x0327: 0xd5,
-      // Õ
-      0x0328: 0xf5,
-      // õ
-      0x0329: 0x7b,
-      // {
-      0x032a: 0x7d,
-      // }
-      0x032b: 0x5c,
-      // \
-      0x032c: 0x5e,
-      // ^
-      0x032d: 0x5f,
-      // _
-      0x032e: 0x7c,
-      // |
-      0x032f: 0x7e,
-      // ~
-      0x0330: 0xc4,
-      // Ä
-      0x0331: 0xe4,
-      // ä
-      0x0332: 0xd6,
-      // Ö
-      0x0333: 0xf6,
-      // ö
-      0x0334: 0xdf,
-      // ß
-      0x0335: 0xa5,
-      // ¥
-      0x0336: 0xa4,
-      // ¤
-      0x0337: 0x2502,
-      // │
-      0x0338: 0xc5,
-      // Å
-      0x0339: 0xe5,
-      // å
-      0x033a: 0xd8,
-      // Ø
-      0x033b: 0xf8,
-      // ø
-      0x033c: 0x250c,
-      // ┌
-      0x033d: 0x2510,
-      // ┐
-      0x033e: 0x2514,
-      // └
-      0x033f: 0x2518 // ┘
-    };
-
-    var getCharFromCode = function (code) {
-      if (code === null) {
-        return '';
-      }
-      code = CHARACTER_TRANSLATION[code] || code;
-      return String.fromCharCode(code);
-    }; // the index of the last row in a CEA-608 display buffer
-
-    var BOTTOM_ROW = 14; // This array is used for mapping PACs -> row #, since there's no way of
-    // getting it through bit logic.
-
-    var ROWS = [0x1100, 0x1120, 0x1200, 0x1220, 0x1500, 0x1520, 0x1600, 0x1620, 0x1700, 0x1720, 0x1000, 0x1300, 0x1320, 0x1400, 0x1420]; // CEA-608 captions are rendered onto a 34x15 matrix of character
-    // cells. The "bottom" row is the last element in the outer array.
-    // We keep track of positioning information as we go by storing the
-    // number of indentations and the tab offset in this buffer.
-
-    var createDisplayBuffer = function () {
-      var result = [],
-        i = BOTTOM_ROW + 1;
-      while (i--) {
-        result.push({
-          text: '',
-          indent: 0,
-          offset: 0
-        });
-      }
-      return result;
-    };
-    var Cea608Stream = function (field, dataChannel) {
-      Cea608Stream.prototype.init.call(this);
-      this.field_ = field || 0;
-      this.dataChannel_ = dataChannel || 0;
-      this.name_ = 'CC' + ((this.field_ << 1 | this.dataChannel_) + 1);
-      this.setConstants();
-      this.reset();
-      this.push = function (packet) {
-        var data, swap, char0, char1, text; // remove the parity bits
-
-        data = packet.ccData & 0x7f7f; // ignore duplicate control codes; the spec demands they're sent twice
-
-        if (data === this.lastControlCode_) {
-          this.lastControlCode_ = null;
-          return;
-        } // Store control codes
-
-        if ((data & 0xf000) === 0x1000) {
-          this.lastControlCode_ = data;
-        } else if (data !== this.PADDING_) {
-          this.lastControlCode_ = null;
-        }
-        char0 = data >>> 8;
-        char1 = data & 0xff;
-        if (data === this.PADDING_) {
-          return;
-        } else if (data === this.RESUME_CAPTION_LOADING_) {
-          this.mode_ = 'popOn';
-        } else if (data === this.END_OF_CAPTION_) {
-          // If an EOC is received while in paint-on mode, the displayed caption
-          // text should be swapped to non-displayed memory as if it was a pop-on
-          // caption. Because of that, we should explicitly switch back to pop-on
-          // mode
-          this.mode_ = 'popOn';
-          this.clearFormatting(packet.pts); // if a caption was being displayed, it's gone now
-
-          this.flushDisplayed(packet.pts); // flip memory
-
-          swap = this.displayed_;
-          this.displayed_ = this.nonDisplayed_;
-          this.nonDisplayed_ = swap; // start measuring the time to display the caption
-
-          this.startPts_ = packet.pts;
-        } else if (data === this.ROLL_UP_2_ROWS_) {
-          this.rollUpRows_ = 2;
-          this.setRollUp(packet.pts);
-        } else if (data === this.ROLL_UP_3_ROWS_) {
-          this.rollUpRows_ = 3;
-          this.setRollUp(packet.pts);
-        } else if (data === this.ROLL_UP_4_ROWS_) {
-          this.rollUpRows_ = 4;
-          this.setRollUp(packet.pts);
-        } else if (data === this.CARRIAGE_RETURN_) {
-          this.clearFormatting(packet.pts);
-          this.flushDisplayed(packet.pts);
-          this.shiftRowsUp_();
-          this.startPts_ = packet.pts;
-        } else if (data === this.BACKSPACE_) {
-          if (this.mode_ === 'popOn') {
-            this.nonDisplayed_[this.row_].text = this.nonDisplayed_[this.row_].text.slice(0, -1);
-          } else {
-            this.displayed_[this.row_].text = this.displayed_[this.row_].text.slice(0, -1);
-          }
-        } else if (data === this.ERASE_DISPLAYED_MEMORY_) {
-          this.flushDisplayed(packet.pts);
-          this.displayed_ = createDisplayBuffer();
-        } else if (data === this.ERASE_NON_DISPLAYED_MEMORY_) {
-          this.nonDisplayed_ = createDisplayBuffer();
-        } else if (data === this.RESUME_DIRECT_CAPTIONING_) {
-          if (this.mode_ !== 'paintOn') {
-            // NOTE: This should be removed when proper caption positioning is
-            // implemented
-            this.flushDisplayed(packet.pts);
-            this.displayed_ = createDisplayBuffer();
-          }
-          this.mode_ = 'paintOn';
-          this.startPts_ = packet.pts; // Append special characters to caption text
-        } else if (this.isSpecialCharacter(char0, char1)) {
-          // Bitmask char0 so that we can apply character transformations
-          // regardless of field and data channel.
-          // Then byte-shift to the left and OR with char1 so we can pass the
-          // entire character code to `getCharFromCode`.
-          char0 = (char0 & 0x03) << 8;
-          text = getCharFromCode(char0 | char1);
-          this[this.mode_](packet.pts, text);
-          this.column_++; // Append extended characters to caption text
-        } else if (this.isExtCharacter(char0, char1)) {
-          // Extended characters always follow their "non-extended" equivalents.
-          // IE if a "è" is desired, you'll always receive "eè"; non-compliant
-          // decoders are supposed to drop the "è", while compliant decoders
-          // backspace the "e" and insert "è".
-          // Delete the previous character
-          if (this.mode_ === 'popOn') {
-            this.nonDisplayed_[this.row_].text = this.nonDisplayed_[this.row_].text.slice(0, -1);
-          } else {
-            this.displayed_[this.row_].text = this.displayed_[this.row_].text.slice(0, -1);
-          } // Bitmask char0 so that we can apply character transformations
-          // regardless of field and data channel.
-          // Then byte-shift to the left and OR with char1 so we can pass the
-          // entire character code to `getCharFromCode`.
-
-          char0 = (char0 & 0x03) << 8;
-          text = getCharFromCode(char0 | char1);
-          this[this.mode_](packet.pts, text);
-          this.column_++; // Process mid-row codes
-        } else if (this.isMidRowCode(char0, char1)) {
-          // Attributes are not additive, so clear all formatting
-          this.clearFormatting(packet.pts); // According to the standard, mid-row codes
-          // should be replaced with spaces, so add one now
-
-          this[this.mode_](packet.pts, ' ');
-          this.column_++;
-          if ((char1 & 0xe) === 0xe) {
-            this.addFormatting(packet.pts, ['i']);
-          }
-          if ((char1 & 0x1) === 0x1) {
-            this.addFormatting(packet.pts, ['u']);
-          } // Detect offset control codes and adjust cursor
-        } else if (this.isOffsetControlCode(char0, char1)) {
-          // Cursor position is set by indent PAC (see below) in 4-column
-          // increments, with an additional offset code of 1-3 to reach any
-          // of the 32 columns specified by CEA-608. So all we need to do
-          // here is increment the column cursor by the given offset.
-          const offset = char1 & 0x03; // For an offest value 1-3, set the offset for that caption
-          // in the non-displayed array.
-
-          this.nonDisplayed_[this.row_].offset = offset;
-          this.column_ += offset; // Detect PACs (Preamble Address Codes)
-        } else if (this.isPAC(char0, char1)) {
-          // There's no logic for PAC -> row mapping, so we have to just
-          // find the row code in an array and use its index :(
-          var row = ROWS.indexOf(data & 0x1f20); // Configure the caption window if we're in roll-up mode
-
-          if (this.mode_ === 'rollUp') {
-            // This implies that the base row is incorrectly set.
-            // As per the recommendation in CEA-608(Base Row Implementation), defer to the number
-            // of roll-up rows set.
-            if (row - this.rollUpRows_ + 1 < 0) {
-              row = this.rollUpRows_ - 1;
-            }
-            this.setRollUp(packet.pts, row);
-          } // Ensure the row is between 0 and 14, otherwise use the most
-          // recent or default row.
-
-          if (row !== this.row_ && row >= 0 && row <= 14) {
-            // formatting is only persistent for current row
-            this.clearFormatting(packet.pts);
-            this.row_ = row;
-          } // All PACs can apply underline, so detect and apply
-          // (All odd-numbered second bytes set underline)
-
-          if (char1 & 0x1 && this.formatting_.indexOf('u') === -1) {
-            this.addFormatting(packet.pts, ['u']);
-          }
-          if ((data & 0x10) === 0x10) {
-            // We've got an indent level code. Each successive even number
-            // increments the column cursor by 4, so we can get the desired
-            // column position by bit-shifting to the right (to get n/2)
-            // and multiplying by 4.
-            const indentations = (data & 0xe) >> 1;
-            this.column_ = indentations * 4; // add to the number of indentations for positioning
-
-            this.nonDisplayed_[this.row_].indent += indentations;
-          }
-          if (this.isColorPAC(char1)) {
-            // it's a color code, though we only support white, which
-            // can be either normal or italicized. white italics can be
-            // either 0x4e or 0x6e depending on the row, so we just
-            // bitwise-and with 0xe to see if italics should be turned on
-            if ((char1 & 0xe) === 0xe) {
-              this.addFormatting(packet.pts, ['i']);
-            }
-          } // We have a normal character in char0, and possibly one in char1
-        } else if (this.isNormalChar(char0)) {
-          if (char1 === 0x00) {
-            char1 = null;
-          }
-          text = getCharFromCode(char0);
-          text += getCharFromCode(char1);
-          this[this.mode_](packet.pts, text);
-          this.column_ += text.length;
-        } // finish data processing
-      };
-    };
-
-    Cea608Stream.prototype = new Stream$7(); // Trigger a cue point that captures the current state of the
-    // display buffer
-
-    Cea608Stream.prototype.flushDisplayed = function (pts) {
-      const logWarning = index => {
-        this.trigger('log', {
-          level: 'warn',
-          message: 'Skipping a malformed 608 caption at index ' + index + '.'
-        });
-      };
-      const content = [];
-      this.displayed_.forEach((row, i) => {
-        if (row && row.text && row.text.length) {
-          try {
-            // remove spaces from the start and end of the string
-            row.text = row.text.trim();
-          } catch (e) {
-            // Ordinarily, this shouldn't happen. However, caption
-            // parsing errors should not throw exceptions and
-            // break playback.
-            logWarning(i);
-          } // See the below link for more details on the following fields:
-          // https://dvcs.w3.org/hg/text-tracks/raw-file/default/608toVTT/608toVTT.html#positioning-in-cea-608
-
-          if (row.text.length) {
-            content.push({
-              // The text to be displayed in the caption from this specific row, with whitespace removed.
-              text: row.text,
-              // Value between 1 and 15 representing the PAC row used to calculate line height.
-              line: i + 1,
-              // A number representing the indent position by percentage (CEA-608 PAC indent code).
-              // The value will be a number between 10 and 80. Offset is used to add an aditional
-              // value to the position if necessary.
-              position: 10 + Math.min(70, row.indent * 10) + row.offset * 2.5
-            });
-          }
-        } else if (row === undefined || row === null) {
-          logWarning(i);
-        }
-      });
-      if (content.length) {
-        this.trigger('data', {
-          startPts: this.startPts_,
-          endPts: pts,
-          content,
-          stream: this.name_
-        });
-      }
-    };
-    /**
-     * Zero out the data, used for startup and on seek
-     */
-
-    Cea608Stream.prototype.reset = function () {
-      this.mode_ = 'popOn'; // When in roll-up mode, the index of the last row that will
-      // actually display captions. If a caption is shifted to a row
-      // with a lower index than this, it is cleared from the display
-      // buffer
-
-      this.topRow_ = 0;
-      this.startPts_ = 0;
-      this.displayed_ = createDisplayBuffer();
-      this.nonDisplayed_ = createDisplayBuffer();
-      this.lastControlCode_ = null; // Track row and column for proper line-breaking and spacing
-
-      this.column_ = 0;
-      this.row_ = BOTTOM_ROW;
-      this.rollUpRows_ = 2; // This variable holds currently-applied formatting
-
-      this.formatting_ = [];
-    };
-    /**
-     * Sets up control code and related constants for this instance
-     */
-
-    Cea608Stream.prototype.setConstants = function () {
-      // The following attributes have these uses:
-      // ext_ :    char0 for mid-row codes, and the base for extended
-      //           chars (ext_+0, ext_+1, and ext_+2 are char0s for
-      //           extended codes)
-      // control_: char0 for control codes, except byte-shifted to the
-      //           left so that we can do this.control_ | CONTROL_CODE
-      // offset_:  char0 for tab offset codes
-      //
-      // It's also worth noting that control codes, and _only_ control codes,
-      // differ between field 1 and field2. Field 2 control codes are always
-      // their field 1 value plus 1. That's why there's the "| field" on the
-      // control value.
-      if (this.dataChannel_ === 0) {
-        this.BASE_ = 0x10;
-        this.EXT_ = 0x11;
-        this.CONTROL_ = (0x14 | this.field_) << 8;
-        this.OFFSET_ = 0x17;
-      } else if (this.dataChannel_ === 1) {
-        this.BASE_ = 0x18;
-        this.EXT_ = 0x19;
-        this.CONTROL_ = (0x1c | this.field_) << 8;
-        this.OFFSET_ = 0x1f;
-      } // Constants for the LSByte command codes recognized by Cea608Stream. This
-      // list is not exhaustive. For a more comprehensive listing and semantics see
-      // http://www.gpo.gov/fdsys/pkg/CFR-2010-title47-vol1/pdf/CFR-2010-title47-vol1-sec15-119.pdf
-      // Padding
-
-      this.PADDING_ = 0x0000; // Pop-on Mode
-
-      this.RESUME_CAPTION_LOADING_ = this.CONTROL_ | 0x20;
-      this.END_OF_CAPTION_ = this.CONTROL_ | 0x2f; // Roll-up Mode
-
-      this.ROLL_UP_2_ROWS_ = this.CONTROL_ | 0x25;
-      this.ROLL_UP_3_ROWS_ = this.CONTROL_ | 0x26;
-      this.ROLL_UP_4_ROWS_ = this.CONTROL_ | 0x27;
-      this.CARRIAGE_RETURN_ = this.CONTROL_ | 0x2d; // paint-on mode
-
-      this.RESUME_DIRECT_CAPTIONING_ = this.CONTROL_ | 0x29; // Erasure
-
-      this.BACKSPACE_ = this.CONTROL_ | 0x21;
-      this.ERASE_DISPLAYED_MEMORY_ = this.CONTROL_ | 0x2c;
-      this.ERASE_NON_DISPLAYED_MEMORY_ = this.CONTROL_ | 0x2e;
-    };
-    /**
-     * Detects if the 2-byte packet data is a special character
-     *
-     * Special characters have a second byte in the range 0x30 to 0x3f,
-     * with the first byte being 0x11 (for data channel 1) or 0x19 (for
-     * data channel 2).
-     *
-     * @param  {Integer} char0 The first byte
-     * @param  {Integer} char1 The second byte
-     * @return {Boolean}       Whether the 2 bytes are an special character
-     */
-
-    Cea608Stream.prototype.isSpecialCharacter = function (char0, char1) {
-      return char0 === this.EXT_ && char1 >= 0x30 && char1 <= 0x3f;
-    };
-    /**
-     * Detects if the 2-byte packet data is an extended character
-     *
-     * Extended characters have a second byte in the range 0x20 to 0x3f,
-     * with the first byte being 0x12 or 0x13 (for data channel 1) or
-     * 0x1a or 0x1b (for data channel 2).
-     *
-     * @param  {Integer} char0 The first byte
-     * @param  {Integer} char1 The second byte
-     * @return {Boolean}       Whether the 2 bytes are an extended character
-     */
-
-    Cea608Stream.prototype.isExtCharacter = function (char0, char1) {
-      return (char0 === this.EXT_ + 1 || char0 === this.EXT_ + 2) && char1 >= 0x20 && char1 <= 0x3f;
-    };
-    /**
-     * Detects if the 2-byte packet is a mid-row code
-     *
-     * Mid-row codes have a second byte in the range 0x20 to 0x2f, with
-     * the first byte being 0x11 (for data channel 1) or 0x19 (for data
-     * channel 2).
-     *
-     * @param  {Integer} char0 The first byte
-     * @param  {Integer} char1 The second byte
-     * @return {Boolean}       Whether the 2 bytes are a mid-row code
-     */
-
-    Cea608Stream.prototype.isMidRowCode = function (char0, char1) {
-      return char0 === this.EXT_ && char1 >= 0x20 && char1 <= 0x2f;
-    };
-    /**
-     * Detects if the 2-byte packet is an offset control code
-     *
-     * Offset control codes have a second byte in the range 0x21 to 0x23,
-     * with the first byte being 0x17 (for data channel 1) or 0x1f (for
-     * data channel 2).
-     *
-     * @param  {Integer} char0 The first byte
-     * @param  {Integer} char1 The second byte
-     * @return {Boolean}       Whether the 2 bytes are an offset control code
-     */
-
-    Cea608Stream.prototype.isOffsetControlCode = function (char0, char1) {
-      return char0 === this.OFFSET_ && char1 >= 0x21 && char1 <= 0x23;
-    };
-    /**
-     * Detects if the 2-byte packet is a Preamble Address Code
-     *
-     * PACs have a first byte in the range 0x10 to 0x17 (for data channel 1)
-     * or 0x18 to 0x1f (for data channel 2), with the second byte in the
-     * range 0x40 to 0x7f.
-     *
-     * @param  {Integer} char0 The first byte
-     * @param  {Integer} char1 The second byte
-     * @return {Boolean}       Whether the 2 bytes are a PAC
-     */
-
-    Cea608Stream.prototype.isPAC = function (char0, char1) {
-      return char0 >= this.BASE_ && char0 < this.BASE_ + 8 && char1 >= 0x40 && char1 <= 0x7f;
-    };
-    /**
-     * Detects if a packet's second byte is in the range of a PAC color code
-     *
-     * PAC color codes have the second byte be in the range 0x40 to 0x4f, or
-     * 0x60 to 0x6f.
-     *
-     * @param  {Integer} char1 The second byte
-     * @return {Boolean}       Whether the byte is a color PAC
-     */
-
-    Cea608Stream.prototype.isColorPAC = function (char1) {
-      return char1 >= 0x40 && char1 <= 0x4f || char1 >= 0x60 && char1 <= 0x7f;
-    };
-    /**
-     * Detects if a single byte is in the range of a normal character
-     *
-     * Normal text bytes are in the range 0x20 to 0x7f.
-     *
-     * @param  {Integer} char  The byte
-     * @return {Boolean}       Whether the byte is a normal character
-     */
-
-    Cea608Stream.prototype.isNormalChar = function (char) {
-      return char >= 0x20 && char <= 0x7f;
-    };
-    /**
-     * Configures roll-up
-     *
-     * @param  {Integer} pts         Current PTS
-     * @param  {Integer} newBaseRow  Used by PACs to slide the current window to
-     *                               a new position
-     */
-
-    Cea608Stream.prototype.setRollUp = function (pts, newBaseRow) {
-      // Reset the base row to the bottom row when switching modes
-      if (this.mode_ !== 'rollUp') {
-        this.row_ = BOTTOM_ROW;
-        this.mode_ = 'rollUp'; // Spec says to wipe memories when switching to roll-up
-
-        this.flushDisplayed(pts);
-        this.nonDisplayed_ = createDisplayBuffer();
-        this.displayed_ = createDisplayBuffer();
-      }
-      if (newBaseRow !== undefined && newBaseRow !== this.row_) {
-        // move currently displayed captions (up or down) to the new base row
-        for (var i = 0; i < this.rollUpRows_; i++) {
-          this.displayed_[newBaseRow - i] = this.displayed_[this.row_ - i];
-          this.displayed_[this.row_ - i] = {
-            text: '',
-            indent: 0,
-            offset: 0
-          };
-        }
-      }
-      if (newBaseRow === undefined) {
-        newBaseRow = this.row_;
-      }
-      this.topRow_ = newBaseRow - this.rollUpRows_ + 1;
-    }; // Adds the opening HTML tag for the passed character to the caption text,
-    // and keeps track of it for later closing
-
-    Cea608Stream.prototype.addFormatting = function (pts, format) {
-      this.formatting_ = this.formatting_.concat(format);
-      var text = format.reduce(function (text, format) {
-        return text + '<' + format + '>';
-      }, '');
-      this[this.mode_](pts, text);
-    }; // Adds HTML closing tags for current formatting to caption text and
-    // clears remembered formatting
-
-    Cea608Stream.prototype.clearFormatting = function (pts) {
-      if (!this.formatting_.length) {
-        return;
-      }
-      var text = this.formatting_.reverse().reduce(function (text, format) {
-        return text + '</' + format + '>';
-      }, '');
-      this.formatting_ = [];
-      this[this.mode_](pts, text);
-    }; // Mode Implementations
-
-    Cea608Stream.prototype.popOn = function (pts, text) {
-      var baseRow = this.nonDisplayed_[this.row_].text; // buffer characters
-
-      baseRow += text;
-      this.nonDisplayed_[this.row_].text = baseRow;
-    };
-    Cea608Stream.prototype.rollUp = function (pts, text) {
-      var baseRow = this.displayed_[this.row_].text;
-      baseRow += text;
-      this.displayed_[this.row_].text = baseRow;
-    };
-    Cea608Stream.prototype.shiftRowsUp_ = function () {
-      var i; // clear out inactive rows
-
-      for (i = 0; i < this.topRow_; i++) {
-        this.displayed_[i] = {
-          text: '',
-          indent: 0,
-          offset: 0
-        };
-      }
-      for (i = this.row_ + 1; i < BOTTOM_ROW + 1; i++) {
-        this.displayed_[i] = {
-          text: '',
-          indent: 0,
-          offset: 0
-        };
-      } // shift displayed rows up
-
-      for (i = this.topRow_; i < this.row_; i++) {
-        this.displayed_[i] = this.displayed_[i + 1];
-      } // clear out the bottom row
-
-      this.displayed_[this.row_] = {
-        text: '',
-        indent: 0,
-        offset: 0
-      };
-    };
-    Cea608Stream.prototype.paintOn = function (pts, text) {
-      var baseRow = this.displayed_[this.row_].text;
-      baseRow += text;
-      this.displayed_[this.row_].text = baseRow;
-    }; // exports
-
-    var captionStream = {
-      CaptionStream: CaptionStream$2,
-      Cea608Stream: Cea608Stream,
-      Cea708Stream: Cea708Stream
-    };
-    /**
-     * mux.js
-     *
-     * Copyright (c) Brightcove
-     * Licensed Apache-2.0 https://github.com/videojs/mux.js/blob/master/LICENSE
-     */
-
-    var streamTypes = {
-      H264_STREAM_TYPE: 0x1B,
-      ADTS_STREAM_TYPE: 0x0F,
-      METADATA_STREAM_TYPE: 0x15
-    };
-    /**
-     * mux.js
-     *
-     * Copyright (c) Brightcove
-     * Licensed Apache-2.0 https://github.com/videojs/mux.js/blob/master/LICENSE
-     *
-     * Accepts program elementary stream (PES) data events and corrects
-     * decode and presentation time stamps to account for a rollover
-     * of the 33 bit value.
-     */
-
-    var Stream$6 = stream;
-    var MAX_TS = 8589934592;
-    var RO_THRESH = 4294967296;
-    var TYPE_SHARED = 'shared';
-    var handleRollover$1 = function (value, reference) {
-      var direction = 1;
-      if (value > reference) {
-        // If the current timestamp value is greater than our reference timestamp and we detect a
-        // timestamp rollover, this means the roll over is happening in the opposite direction.
-        // Example scenario: Enter a long stream/video just after a rollover occurred. The reference
-        // point will be set to a small number, e.g. 1. The user then seeks backwards over the
-        // rollover point. In loading this segment, the timestamp values will be very large,
-        // e.g. 2^33 - 1. Since this comes before the data we loaded previously, we want to adjust
-        // the time stamp to be `value - 2^33`.
-        direction = -1;
-      } // Note: A seek forwards or back that is greater than the RO_THRESH (2^32, ~13 hours) will
-      // cause an incorrect adjustment.
-
-      while (Math.abs(reference - value) > RO_THRESH) {
-        value += direction * MAX_TS;
-      }
-      return value;
-    };
-    var TimestampRolloverStream$1 = function (type) {
-      var lastDTS, referenceDTS;
-      TimestampRolloverStream$1.prototype.init.call(this); // The "shared" type is used in cases where a stream will contain muxed
-      // video and audio. We could use `undefined` here, but having a string
-      // makes debugging a little clearer.
-
-      this.type_ = type || TYPE_SHARED;
-      this.push = function (data) {
-        /**
-         * Rollover stream expects data from elementary stream.
-         * Elementary stream can push forward 2 types of data
-         * - Parsed Video/Audio/Timed-metadata PES (packetized elementary stream) packets
-         * - Tracks metadata from PMT (Program Map Table)
-         * Rollover stream expects pts/dts info to be available, since it stores lastDTS
-         * We should ignore non-PES packets since they may override lastDTS to undefined.
-         * lastDTS is important to signal the next segments
-         * about rollover from the previous segments.
-         */
-        if (data.type === 'metadata') {
-          this.trigger('data', data);
-          return;
-        } // Any "shared" rollover streams will accept _all_ data. Otherwise,
-        // streams will only accept data that matches their type.
-
-        if (this.type_ !== TYPE_SHARED && data.type !== this.type_) {
-          return;
-        }
-        if (referenceDTS === undefined) {
-          referenceDTS = data.dts;
-        }
-        data.dts = handleRollover$1(data.dts, referenceDTS);
-        data.pts = handleRollover$1(data.pts, referenceDTS);
-        lastDTS = data.dts;
-        this.trigger('data', data);
-      };
-      this.flush = function () {
-        referenceDTS = lastDTS;
-        this.trigger('done');
-      };
-      this.endTimeline = function () {
-        this.flush();
-        this.trigger('endedtimeline');
-      };
-      this.discontinuity = function () {
-        referenceDTS = void 0;
-        lastDTS = void 0;
-      };
-      this.reset = function () {
-        this.discontinuity();
-        this.trigger('reset');
-      };
-    };
-    TimestampRolloverStream$1.prototype = new Stream$6();
-    var timestampRolloverStream = {
-      TimestampRolloverStream: TimestampRolloverStream$1,
-      handleRollover: handleRollover$1
-    }; // Once IE11 support is dropped, this function should be removed.
-
-    var typedArrayIndexOf$1 = (typedArray, element, fromIndex) => {
-      if (!typedArray) {
-        return -1;
-      }
-      var currentIndex = fromIndex;
-      for (; currentIndex < typedArray.length; currentIndex++) {
-        if (typedArray[currentIndex] === element) {
-          return currentIndex;
-        }
-      }
-      return -1;
-    };
-    var typedArray = {
-      typedArrayIndexOf: typedArrayIndexOf$1
-    };
-    /**
-     * mux.js
-     *
-     * Copyright (c) Brightcove
-     * Licensed Apache-2.0 https://github.com/videojs/mux.js/blob/master/LICENSE
-     *
-     * Tools for parsing ID3 frame data
-     * @see http://id3.org/id3v2.3.0
-     */
-
-    var typedArrayIndexOf = typedArray.typedArrayIndexOf,
-      // Frames that allow different types of text encoding contain a text
-      // encoding description byte [ID3v2.4.0 section 4.]
-      textEncodingDescriptionByte = {
-        Iso88591: 0x00,
-        // ISO-8859-1, terminated with \0.
-        Utf16: 0x01,
-        // UTF-16 encoded Unicode BOM, terminated with \0\0
-        Utf16be: 0x02,
-        // UTF-16BE encoded Unicode, without BOM, terminated with \0\0
-        Utf8: 0x03 // UTF-8 encoded Unicode, terminated with \0
-      },
-      // return a percent-encoded representation of the specified byte range
-      // @see http://en.wikipedia.org/wiki/Percent-encoding 
-      percentEncode$1 = function (bytes, start, end) {
-        var i,
-          result = '';
-        for (i = start; i < end; i++) {
-          result += '%' + ('00' + bytes[i].toString(16)).slice(-2);
-        }
-        return result;
-      },
-      // return the string representation of the specified byte range,
-      // interpreted as UTf-8.
-      parseUtf8 = function (bytes, start, end) {
-        return decodeURIComponent(percentEncode$1(bytes, start, end));
-      },
-      // return the string representation of the specified byte range,
-      // interpreted as ISO-8859-1.
-      parseIso88591$1 = function (bytes, start, end) {
-        return unescape(percentEncode$1(bytes, start, end)); // jshint ignore:line
-      },
-      parseSyncSafeInteger$1 = function (data) {
-        return data[0] << 21 | data[1] << 14 | data[2] << 7 | data[3];
-      },
-      frameParsers = {
-        'APIC': function (frame) {
-          var i = 1,
-            mimeTypeEndIndex,
-            descriptionEndIndex,
-            LINK_MIME_TYPE = '-->';
-          if (frame.data[0] !== textEncodingDescriptionByte.Utf8) {
-            // ignore frames with unrecognized character encodings
-            return;
-          } // parsing fields [ID3v2.4.0 section 4.14.]
-
-          mimeTypeEndIndex = typedArrayIndexOf(frame.data, 0, i);
-          if (mimeTypeEndIndex < 0) {
-            // malformed frame
-            return;
-          } // parsing Mime type field (terminated with \0)
-
-          frame.mimeType = parseIso88591$1(frame.data, i, mimeTypeEndIndex);
-          i = mimeTypeEndIndex + 1; // parsing 1-byte Picture Type field
-
-          frame.pictureType = frame.data[i];
-          i++;
-          descriptionEndIndex = typedArrayIndexOf(frame.data, 0, i);
-          if (descriptionEndIndex < 0) {
-            // malformed frame
-            return;
-          } // parsing Description field (terminated with \0)
-
-          frame.description = parseUtf8(frame.data, i, descriptionEndIndex);
-          i = descriptionEndIndex + 1;
-          if (frame.mimeType === LINK_MIME_TYPE) {
-            // parsing Picture Data field as URL (always represented as ISO-8859-1 [ID3v2.4.0 section 4.])
-            frame.url = parseIso88591$1(frame.data, i, frame.data.length);
-          } else {
-            // parsing Picture Data field as binary data
-            frame.pictureData = frame.data.subarray(i, frame.data.length);
-          }
-        },
-        'T*': function (frame) {
-          if (frame.data[0] !== textEncodingDescriptionByte.Utf8) {
-            // ignore frames with unrecognized character encodings
-            return;
-          } // parse text field, do not include null terminator in the frame value
-          // frames that allow different types of encoding contain terminated text [ID3v2.4.0 section 4.]
-
-          frame.value = parseUtf8(frame.data, 1, frame.data.length).replace(/\0*$/, ''); // text information frames supports multiple strings, stored as a terminator separated list [ID3v2.4.0 section 4.2.]
-
-          frame.values = frame.value.split('\0');
-        },
-        'TXXX': function (frame) {
-          var descriptionEndIndex;
-          if (frame.data[0] !== textEncodingDescriptionByte.Utf8) {
-            // ignore frames with unrecognized character encodings
-            return;
-          }
-          descriptionEndIndex = typedArrayIndexOf(frame.data, 0, 1);
-          if (descriptionEndIndex === -1) {
-            return;
-          } // parse the text fields
-
-          frame.description = parseUtf8(frame.data, 1, descriptionEndIndex); // do not include the null terminator in the tag value
-          // frames that allow different types of encoding contain terminated text
-          // [ID3v2.4.0 section 4.]
-
-          frame.value = parseUtf8(frame.data, descriptionEndIndex + 1, frame.data.length).replace(/\0*$/, '');
-          frame.data = frame.value;
-        },
-        'W*': function (frame) {
-          // parse URL field; URL fields are always represented as ISO-8859-1 [ID3v2.4.0 section 4.]
-          // if the value is followed by a string termination all the following information should be ignored [ID3v2.4.0 section 4.3]
-          frame.url = parseIso88591$1(frame.data, 0, frame.data.length).replace(/\0.*$/, '');
-        },
-        'WXXX': function (frame) {
-          var descriptionEndIndex;
-          if (frame.data[0] !== textEncodingDescriptionByte.Utf8) {
-            // ignore frames with unrecognized character encodings
-            return;
-          }
-          descriptionEndIndex = typedArrayIndexOf(frame.data, 0, 1);
-          if (descriptionEndIndex === -1) {
-            return;
-          } // parse the description and URL fields
-
-          frame.description = parseUtf8(frame.data, 1, descriptionEndIndex); // URL fields are always represented as ISO-8859-1 [ID3v2.4.0 section 4.]
-          // if the value is followed by a string termination all the following information
-          // should be ignored [ID3v2.4.0 section 4.3]
-
-          frame.url = parseIso88591$1(frame.data, descriptionEndIndex + 1, frame.data.length).replace(/\0.*$/, '');
-        },
-        'PRIV': function (frame) {
-          var i;
-          for (i = 0; i < frame.data.length; i++) {
-            if (frame.data[i] === 0) {
-              // parse the description and URL fields
-              frame.owner = parseIso88591$1(frame.data, 0, i);
-              break;
-            }
-          }
-          frame.privateData = frame.data.subarray(i + 1);
-          frame.data = frame.privateData;
-        }
-      };
-    var parseId3Frames$1 = function (data) {
-      var frameSize,
-        frameHeader,
-        frameStart = 10,
-        tagSize = 0,
-        frames = []; // If we don't have enough data for a header, 10 bytes, 
-      // or 'ID3' in the first 3 bytes this is not a valid ID3 tag.
-
-      if (data.length < 10 || data[0] !== 'I'.charCodeAt(0) || data[1] !== 'D'.charCodeAt(0) || data[2] !== '3'.charCodeAt(0)) {
-        return;
-      } // the frame size is transmitted as a 28-bit integer in the
-      // last four bytes of the ID3 header.
-      // The most significant bit of each byte is dropped and the
-      // results concatenated to recover the actual value.
-
-      tagSize = parseSyncSafeInteger$1(data.subarray(6, 10)); // ID3 reports the tag size excluding the header but it's more
-      // convenient for our comparisons to include it
-
-      tagSize += 10; // check bit 6 of byte 5 for the extended header flag.
-
-      var hasExtendedHeader = data[5] & 0x40;
-      if (hasExtendedHeader) {
-        // advance the frame start past the extended header
-        frameStart += 4; // header size field
-
-        frameStart += parseSyncSafeInteger$1(data.subarray(10, 14));
-        tagSize -= parseSyncSafeInteger$1(data.subarray(16, 20)); // clip any padding off the end
-      } // parse one or more ID3 frames
-      // http://id3.org/id3v2.3.0#ID3v2_frame_overview
-
-      do {
-        // determine the number of bytes in this frame
-        frameSize = parseSyncSafeInteger$1(data.subarray(frameStart + 4, frameStart + 8));
-        if (frameSize < 1) {
-          break;
-        }
-        frameHeader = String.fromCharCode(data[frameStart], data[frameStart + 1], data[frameStart + 2], data[frameStart + 3]);
-        var frame = {
-          id: frameHeader,
-          data: data.subarray(frameStart + 10, frameStart + frameSize + 10)
-        };
-        frame.key = frame.id; // parse frame values
-
-        if (frameParsers[frame.id]) {
-          // use frame specific parser
-          frameParsers[frame.id](frame);
-        } else if (frame.id[0] === 'T') {
-          // use text frame generic parser
-          frameParsers['T*'](frame);
-        } else if (frame.id[0] === 'W') {
-          // use URL link frame generic parser
-          frameParsers['W*'](frame);
-        }
-        frames.push(frame);
-        frameStart += 10; // advance past the frame header
-
-        frameStart += frameSize; // advance past the frame body
-      } while (frameStart < tagSize);
-      return frames;
-    };
-    var parseId3 = {
-      parseId3Frames: parseId3Frames$1,
-      parseSyncSafeInteger: parseSyncSafeInteger$1,
-      frameParsers: frameParsers
-    };
-    /**
-     * mux.js
-     *
-     * Copyright (c) Brightcove
-     * Licensed Apache-2.0 https://github.com/videojs/mux.js/blob/master/LICENSE
-     *
-     * Accepts program elementary stream (PES) data events and parses out
-     * ID3 metadata from them, if present.
-     * @see http://id3.org/id3v2.3.0
-     */
-
-    var Stream$5 = stream,
-      StreamTypes$3 = streamTypes,
-      id3 = parseId3,
-      MetadataStream;
-    MetadataStream = function (options) {
-      var settings = {
-          // the bytes of the program-level descriptor field in MP2T
-          // see ISO/IEC 13818-1:2013 (E), section 2.6 "Program and
-          // program element descriptors"
-          descriptor: options && options.descriptor
-        },
-        // the total size in bytes of the ID3 tag being parsed
-        tagSize = 0,
-        // tag data that is not complete enough to be parsed
-        buffer = [],
-        // the total number of bytes currently in the buffer
-        bufferSize = 0,
-        i;
-      MetadataStream.prototype.init.call(this); // calculate the text track in-band metadata track dispatch type
-      // https://html.spec.whatwg.org/multipage/embedded-content.html#steps-to-expose-a-media-resource-specific-text-track
-
-      this.dispatchType = StreamTypes$3.METADATA_STREAM_TYPE.toString(16);
-      if (settings.descriptor) {
-        for (i = 0; i < settings.descriptor.length; i++) {
-          this.dispatchType += ('00' + settings.descriptor[i].toString(16)).slice(-2);
-        }
-      }
-      this.push = function (chunk) {
-        var tag, frameStart, frameSize, frame, i, frameHeader;
-        if (chunk.type !== 'timed-metadata') {
-          return;
-        } // if data_alignment_indicator is set in the PES header,
-        // we must have the start of a new ID3 tag. Assume anything
-        // remaining in the buffer was malformed and throw it out
-
-        if (chunk.dataAlignmentIndicator) {
-          bufferSize = 0;
-          buffer.length = 0;
-        } // ignore events that don't look like ID3 data
-
-        if (buffer.length === 0 && (chunk.data.length < 10 || chunk.data[0] !== 'I'.charCodeAt(0) || chunk.data[1] !== 'D'.charCodeAt(0) || chunk.data[2] !== '3'.charCodeAt(0))) {
-          this.trigger('log', {
-            level: 'warn',
-            message: 'Skipping unrecognized metadata packet'
-          });
-          return;
-        } // add this chunk to the data we've collected so far
-
-        buffer.push(chunk);
-        bufferSize += chunk.data.byteLength; // grab the size of the entire frame from the ID3 header
-
-        if (buffer.length === 1) {
-          // the frame size is transmitted as a 28-bit integer in the
-          // last four bytes of the ID3 header.
-          // The most significant bit of each byte is dropped and the
-          // results concatenated to recover the actual value.
-          tagSize = id3.parseSyncSafeInteger(chunk.data.subarray(6, 10)); // ID3 reports the tag size excluding the header but it's more
-          // convenient for our comparisons to include it
-
-          tagSize += 10;
-        } // if the entire frame has not arrived, wait for more data
-
-        if (bufferSize < tagSize) {
-          return;
-        } // collect the entire frame so it can be parsed
-
-        tag = {
-          data: new Uint8Array(tagSize),
-          frames: [],
-          pts: buffer[0].pts,
-          dts: buffer[0].dts
-        };
-        for (i = 0; i < tagSize;) {
-          tag.data.set(buffer[0].data.subarray(0, tagSize - i), i);
-          i += buffer[0].data.byteLength;
-          bufferSize -= buffer[0].data.byteLength;
-          buffer.shift();
-        } // find the start of the first frame and the end of the tag
-
-        frameStart = 10;
-        if (tag.data[5] & 0x40) {
-          // advance the frame start past the extended header
-          frameStart += 4; // header size field
-
-          frameStart += id3.parseSyncSafeInteger(tag.data.subarray(10, 14)); // clip any padding off the end
-
-          tagSize -= id3.parseSyncSafeInteger(tag.data.subarray(16, 20));
-        } // parse one or more ID3 frames
-        // http://id3.org/id3v2.3.0#ID3v2_frame_overview
-
-        do {
-          // determine the number of bytes in this frame
-          frameSize = id3.parseSyncSafeInteger(tag.data.subarray(frameStart + 4, frameStart + 8));
-          if (frameSize < 1) {
-            this.trigger('log', {
-              level: 'warn',
-              message: 'Malformed ID3 frame encountered. Skipping remaining metadata parsing.'
-            }); // If the frame is malformed, don't parse any further frames but allow previous valid parsed frames
-            // to be sent along.
-
-            break;
-          }
-          frameHeader = String.fromCharCode(tag.data[frameStart], tag.data[frameStart + 1], tag.data[frameStart + 2], tag.data[frameStart + 3]);
-          frame = {
-            id: frameHeader,
-            data: tag.data.subarray(frameStart + 10, frameStart + frameSize + 10)
-          };
-          frame.key = frame.id; // parse frame values
-
-          if (id3.frameParsers[frame.id]) {
-            // use frame specific parser
-            id3.frameParsers[frame.id](frame);
-          } else if (frame.id[0] === 'T') {
-            // use text frame generic parser
-            id3.frameParsers['T*'](frame);
-          } else if (frame.id[0] === 'W') {
-            // use URL link frame generic parser
-            id3.frameParsers['W*'](frame);
-          } // handle the special PRIV frame used to indicate the start
-          // time for raw AAC data
-
-          if (frame.owner === 'com.apple.streaming.transportStreamTimestamp') {
-            var d = frame.data,
-              size = (d[3] & 0x01) << 30 | d[4] << 22 | d[5] << 14 | d[6] << 6 | d[7] >>> 2;
-            size *= 4;
-            size += d[7] & 0x03;
-            frame.timeStamp = size; // in raw AAC, all subsequent data will be timestamped based
-            // on the value of this frame
-            // we couldn't have known the appropriate pts and dts before
-            // parsing this ID3 tag so set those values now
-
-            if (tag.pts === undefined && tag.dts === undefined) {
-              tag.pts = frame.timeStamp;
-              tag.dts = frame.timeStamp;
-            }
-            this.trigger('timestamp', frame);
-          }
-          tag.frames.push(frame);
-          frameStart += 10; // advance past the frame header
-
-          frameStart += frameSize; // advance past the frame body
-        } while (frameStart < tagSize);
-        this.trigger('data', tag);
-      };
-    };
-    MetadataStream.prototype = new Stream$5();
-    var metadataStream = MetadataStream;
-    /**
-     * mux.js
-     *
-     * Copyright (c) Brightcove
-     * Licensed Apache-2.0 https://github.com/videojs/mux.js/blob/master/LICENSE
-     *
-     * A stream-based mp2t to mp4 converter. This utility can be used to
-     * deliver mp4s to a SourceBuffer on platforms that support native
-     * Media Source Extensions.
-     */
-
-    var Stream$4 = stream,
-      CaptionStream$1 = captionStream,
-      StreamTypes$2 = streamTypes,
-      TimestampRolloverStream = timestampRolloverStream.TimestampRolloverStream; // object types
-
-    var TransportPacketStream, TransportParseStream, ElementaryStream; // constants
-
-    var MP2T_PACKET_LENGTH$1 = 188,
-      // bytes
-      SYNC_BYTE$1 = 0x47;
-    /**
-     * Splits an incoming stream of binary data into MPEG-2 Transport
-     * Stream packets.
-     */
-
-    TransportPacketStream = function () {
-      var buffer = new Uint8Array(MP2T_PACKET_LENGTH$1),
-        bytesInBuffer = 0;
-      TransportPacketStream.prototype.init.call(this); // Deliver new bytes to the stream.
-
-      /**
-       * Split a stream of data into M2TS packets
-      **/
-
-      this.push = function (bytes) {
-        var startIndex = 0,
-          endIndex = MP2T_PACKET_LENGTH$1,
-          everything; // If there are bytes remaining from the last segment, prepend them to the
-        // bytes that were pushed in
-
-        if (bytesInBuffer) {
-          everything = new Uint8Array(bytes.byteLength + bytesInBuffer);
-          everything.set(buffer.subarray(0, bytesInBuffer));
-          everything.set(bytes, bytesInBuffer);
-          bytesInBuffer = 0;
-        } else {
-          everything = bytes;
-        } // While we have enough data for a packet
-
-        while (endIndex < everything.byteLength) {
-          // Look for a pair of start and end sync bytes in the data..
-          if (everything[startIndex] === SYNC_BYTE$1 && everything[endIndex] === SYNC_BYTE$1) {
-            // We found a packet so emit it and jump one whole packet forward in
-            // the stream
-            this.trigger('data', everything.subarray(startIndex, endIndex));
-            startIndex += MP2T_PACKET_LENGTH$1;
-            endIndex += MP2T_PACKET_LENGTH$1;
-            continue;
-          } // If we get here, we have somehow become de-synchronized and we need to step
-          // forward one byte at a time until we find a pair of sync bytes that denote
-          // a packet
-
-          startIndex++;
-          endIndex++;
-        } // If there was some data left over at the end of the segment that couldn't
-        // possibly be a whole packet, keep it because it might be the start of a packet
-        // that continues in the next segment
-
-        if (startIndex < everything.byteLength) {
-          buffer.set(everything.subarray(startIndex), 0);
-          bytesInBuffer = everything.byteLength - startIndex;
-        }
-      };
-      /**
-       * Passes identified M2TS packets to the TransportParseStream to be parsed
-      **/
-
-      this.flush = function () {
-        // If the buffer contains a whole packet when we are being flushed, emit it
-        // and empty the buffer. Otherwise hold onto the data because it may be
-        // important for decoding the next segment
-        if (bytesInBuffer === MP2T_PACKET_LENGTH$1 && buffer[0] === SYNC_BYTE$1) {
-          this.trigger('data', buffer);
-          bytesInBuffer = 0;
-        }
-        this.trigger('done');
-      };
-      this.endTimeline = function () {
-        this.flush();
-        this.trigger('endedtimeline');
-      };
-      this.reset = function () {
-        bytesInBuffer = 0;
-        this.trigger('reset');
-      };
-    };
-    TransportPacketStream.prototype = new Stream$4();
-    /**
-     * Accepts an MP2T TransportPacketStream and emits data events with parsed
-     * forms of the individual transport stream packets.
-     */
-
-    TransportParseStream = function () {
-      var parsePsi, parsePat, parsePmt, self;
-      TransportParseStream.prototype.init.call(this);
-      self = this;
-      this.packetsWaitingForPmt = [];
-      this.programMapTable = undefined;
-      parsePsi = function (payload, psi) {
-        var offset = 0; // PSI packets may be split into multiple sections and those
-        // sections may be split into multiple packets. If a PSI
-        // section starts in this packet, the payload_unit_start_indicator
-        // will be true and the first byte of the payload will indicate
-        // the offset from the current position to the start of the
-        // section.
-
-        if (psi.payloadUnitStartIndicator) {
-          offset += payload[offset] + 1;
-        }
-        if (psi.type === 'pat') {
-          parsePat(payload.subarray(offset), psi);
-        } else {
-          parsePmt(payload.subarray(offset), psi);
-        }
-      };
-      parsePat = function (payload, pat) {
-        pat.section_number = payload[7]; // eslint-disable-line camelcase
-
-        pat.last_section_number = payload[8]; // eslint-disable-line camelcase
-        // skip the PSI header and parse the first PMT entry
-
-        self.pmtPid = (payload[10] & 0x1F) << 8 | payload[11];
-        pat.pmtPid = self.pmtPid;
-      };
-      /**
-       * Parse out the relevant fields of a Program Map Table (PMT).
-       * @param payload {Uint8Array} the PMT-specific portion of an MP2T
-       * packet. The first byte in this array should be the table_id
-       * field.
-       * @param pmt {object} the object that should be decorated with
-       * fields parsed from the PMT.
-       */
-
-      parsePmt = function (payload, pmt) {
-        var sectionLength, tableEnd, programInfoLength, offset; // PMTs can be sent ahead of the time when they should actually
-        // take effect. We don't believe this should ever be the case
-        // for HLS but we'll ignore "forward" PMT declarations if we see
-        // them. Future PMT declarations have the current_next_indicator
-        // set to zero.
-
-        if (!(payload[5] & 0x01)) {
-          return;
-        } // overwrite any existing program map table
-
-        self.programMapTable = {
-          video: null,
-          audio: null,
-          'timed-metadata': {}
-        }; // the mapping table ends at the end of the current section
-
-        sectionLength = (payload[1] & 0x0f) << 8 | payload[2];
-        tableEnd = 3 + sectionLength - 4; // to determine where the table is, we have to figure out how
-        // long the program info descriptors are
-
-        programInfoLength = (payload[10] & 0x0f) << 8 | payload[11]; // advance the offset to the first entry in the mapping table
-
-        offset = 12 + programInfoLength;
-        while (offset < tableEnd) {
-          var streamType = payload[offset];
-          var pid = (payload[offset + 1] & 0x1F) << 8 | payload[offset + 2]; // only map a single elementary_pid for audio and video stream types
-          // TODO: should this be done for metadata too? for now maintain behavior of
-          //       multiple metadata streams
-
-          if (streamType === StreamTypes$2.H264_STREAM_TYPE && self.programMapTable.video === null) {
-            self.programMapTable.video = pid;
-          } else if (streamType === StreamTypes$2.ADTS_STREAM_TYPE && self.programMapTable.audio === null) {
-            self.programMapTable.audio = pid;
-          } else if (streamType === StreamTypes$2.METADATA_STREAM_TYPE) {
-            // map pid to stream type for metadata streams
-            self.programMapTable['timed-metadata'][pid] = streamType;
-          } // move to the next table entry
-          // skip past the elementary stream descriptors, if present
-
-          offset += ((payload[offset + 3] & 0x0F) << 8 | payload[offset + 4]) + 5;
-        } // record the map on the packet as well
-
-        pmt.programMapTable = self.programMapTable;
-      };
-      /**
-       * Deliver a new MP2T packet to the next stream in the pipeline.
-       */
-
-      this.push = function (packet) {
-        var result = {},
-          offset = 4;
-        result.payloadUnitStartIndicator = !!(packet[1] & 0x40); // pid is a 13-bit field starting at the last bit of packet[1]
-
-        result.pid = packet[1] & 0x1f;
-        result.pid <<= 8;
-        result.pid |= packet[2]; // if an adaption field is present, its length is specified by the
-        // fifth byte of the TS packet header. The adaptation field is
-        // used to add stuffing to PES packets that don't fill a complete
-        // TS packet, and to specify some forms of timing and control data
-        // that we do not currently use.
-
-        if ((packet[3] & 0x30) >>> 4 > 0x01) {
-          offset += packet[offset] + 1;
-        } // parse the rest of the packet based on the type
-
-        if (result.pid === 0) {
-          result.type = 'pat';
-          parsePsi(packet.subarray(offset), result);
-          this.trigger('data', result);
-        } else if (result.pid === this.pmtPid) {
-          result.type = 'pmt';
-          parsePsi(packet.subarray(offset), result);
-          this.trigger('data', result); // if there are any packets waiting for a PMT to be found, process them now
-
-          while (this.packetsWaitingForPmt.length) {
-            this.processPes_.apply(this, this.packetsWaitingForPmt.shift());
-          }
-        } else if (this.programMapTable === undefined) {
-          // When we have not seen a PMT yet, defer further processing of
-          // PES packets until one has been parsed
-          this.packetsWaitingForPmt.push([packet, offset, result]);
-        } else {
-          this.processPes_(packet, offset, result);
-        }
-      };
-      this.processPes_ = function (packet, offset, result) {
-        // set the appropriate stream type
-        if (result.pid === this.programMapTable.video) {
-          result.streamType = StreamTypes$2.H264_STREAM_TYPE;
-        } else if (result.pid === this.programMapTable.audio) {
-          result.streamType = StreamTypes$2.ADTS_STREAM_TYPE;
-        } else {
-          // if not video or audio, it is timed-metadata or unknown
-          // if unknown, streamType will be undefined
-          result.streamType = this.programMapTable['timed-metadata'][result.pid];
-        }
-        result.type = 'pes';
-        result.data = packet.subarray(offset);
-        this.trigger('data', result);
-      };
-    };
-    TransportParseStream.prototype = new Stream$4();
-    TransportParseStream.STREAM_TYPES = {
-      h264: 0x1b,
-      adts: 0x0f
-    };
-    /**
-     * Reconsistutes program elementary stream (PES) packets from parsed
-     * transport stream packets. That is, if you pipe an
-     * mp2t.TransportParseStream into a mp2t.ElementaryStream, the output
-     * events will be events which capture the bytes for individual PES
-     * packets plus relevant metadata that has been extracted from the
-     * container.
-     */
-
-    ElementaryStream = function () {
-      var self = this,
-        segmentHadPmt = false,
-        // PES packet fragments
-        video = {
-          data: [],
-          size: 0
-        },
-        audio = {
-          data: [],
-          size: 0
-        },
-        timedMetadata = {
-          data: [],
-          size: 0
-        },
-        programMapTable,
-        parsePes = function (payload, pes) {
-          var ptsDtsFlags;
-          const startPrefix = payload[0] << 16 | payload[1] << 8 | payload[2]; // default to an empty array
-
-          pes.data = new Uint8Array(); // In certain live streams, the start of a TS fragment has ts packets
-          // that are frame data that is continuing from the previous fragment. This
-          // is to check that the pes data is the start of a new pes payload
-
-          if (startPrefix !== 1) {
-            return;
-          } // get the packet length, this will be 0 for video
-
-          pes.packetLength = 6 + (payload[4] << 8 | payload[5]); // find out if this packets starts a new keyframe
-
-          pes.dataAlignmentIndicator = (payload[6] & 0x04) !== 0; // PES packets may be annotated with a PTS value, or a PTS value
-          // and a DTS value. Determine what combination of values is
-          // available to work with.
-
-          ptsDtsFlags = payload[7]; // PTS and DTS are normally stored as a 33-bit number.  Javascript
-          // performs all bitwise operations on 32-bit integers but javascript
-          // supports a much greater range (52-bits) of integer using standard
-          // mathematical operations.
-          // We construct a 31-bit value using bitwise operators over the 31
-          // most significant bits and then multiply by 4 (equal to a left-shift
-          // of 2) before we add the final 2 least significant bits of the
-          // timestamp (equal to an OR.)
-
-          if (ptsDtsFlags & 0xC0) {
-            // the PTS and DTS are not written out directly. For information
-            // on how they are encoded, see
-            // http://dvd.sourceforge.net/dvdinfo/pes-hdr.html
-            pes.pts = (payload[9] & 0x0E) << 27 | (payload[10] & 0xFF) << 20 | (payload[11] & 0xFE) << 12 | (payload[12] & 0xFF) << 5 | (payload[13] & 0xFE) >>> 3;
-            pes.pts *= 4; // Left shift by 2
-
-            pes.pts += (payload[13] & 0x06) >>> 1; // OR by the two LSBs
-
-            pes.dts = pes.pts;
-            if (ptsDtsFlags & 0x40) {
-              pes.dts = (payload[14] & 0x0E) << 27 | (payload[15] & 0xFF) << 20 | (payload[16] & 0xFE) << 12 | (payload[17] & 0xFF) << 5 | (payload[18] & 0xFE) >>> 3;
-              pes.dts *= 4; // Left shift by 2
-
-              pes.dts += (payload[18] & 0x06) >>> 1; // OR by the two LSBs
-            }
-          } // the data section starts immediately after the PES header.
-          // pes_header_data_length specifies the number of header bytes
-          // that follow the last byte of the field.
-
-          pes.data = payload.subarray(9 + payload[8]);
-        },
-        /**
-          * Pass completely parsed PES packets to the next stream in the pipeline
-         **/
-        flushStream = function (stream, type, forceFlush) {
-          var packetData = new Uint8Array(stream.size),
-            event = {
-              type: type
-            },
-            i = 0,
-            offset = 0,
-            packetFlushable = false,
-            fragment; // do nothing if there is not enough buffered data for a complete
-          // PES header
-
-          if (!stream.data.length || stream.size < 9) {
-            return;
-          }
-          event.trackId = stream.data[0].pid; // reassemble the packet
-
-          for (i = 0; i < stream.data.length; i++) {
-            fragment = stream.data[i];
-            packetData.set(fragment.data, offset);
-            offset += fragment.data.byteLength;
-          } // parse assembled packet's PES header
-
-          parsePes(packetData, event); // non-video PES packets MUST have a non-zero PES_packet_length
-          // check that there is enough stream data to fill the packet
-
-          packetFlushable = type === 'video' || event.packetLength <= stream.size; // flush pending packets if the conditions are right
-
-          if (forceFlush || packetFlushable) {
-            stream.size = 0;
-            stream.data.length = 0;
-          } // only emit packets that are complete. this is to avoid assembling
-          // incomplete PES packets due to poor segmentation
-
-          if (packetFlushable) {
-            self.trigger('data', event);
-          }
-        };
-      ElementaryStream.prototype.init.call(this);
-      /**
-       * Identifies M2TS packet types and parses PES packets using metadata
-       * parsed from the PMT
-       **/
-
-      this.push = function (data) {
-        ({
-          pat: function () {// we have to wait for the PMT to arrive as well before we
-            // have any meaningful metadata
-          },
-          pes: function () {
-            var stream, streamType;
-            switch (data.streamType) {
-              case StreamTypes$2.H264_STREAM_TYPE:
-                stream = video;
-                streamType = 'video';
-                break;
-              case StreamTypes$2.ADTS_STREAM_TYPE:
-                stream = audio;
-                streamType = 'audio';
-                break;
-              case StreamTypes$2.METADATA_STREAM_TYPE:
-                stream = timedMetadata;
-                streamType = 'timed-metadata';
-                break;
-              default:
-                // ignore unknown stream types
-                return;
-            } // if a new packet is starting, we can flush the completed
-            // packet
-
-            if (data.payloadUnitStartIndicator) {
-              flushStream(stream, streamType, true);
-            } // buffer this fragment until we are sure we've received the
-            // complete payload
-
-            stream.data.push(data);
-            stream.size += data.data.byteLength;
-          },
-          pmt: function () {
-            var event = {
-              type: 'metadata',
-              tracks: []
-            };
-            programMapTable = data.programMapTable; // translate audio and video streams to tracks
-
-            if (programMapTable.video !== null) {
-              event.tracks.push({
-                timelineStartInfo: {
-                  baseMediaDecodeTime: 0
-                },
-                id: +programMapTable.video,
-                codec: 'avc',
-                type: 'video'
-              });
-            }
-            if (programMapTable.audio !== null) {
-              event.tracks.push({
-                timelineStartInfo: {
-                  baseMediaDecodeTime: 0
-                },
-                id: +programMapTable.audio,
-                codec: 'adts',
-                type: 'audio'
-              });
-            }
-            segmentHadPmt = true;
-            self.trigger('data', event);
-          }
-        })[data.type]();
-      };
-      this.reset = function () {
-        video.size = 0;
-        video.data.length = 0;
-        audio.size = 0;
-        audio.data.length = 0;
-        this.trigger('reset');
-      };
-      /**
-       * Flush any remaining input. Video PES packets may be of variable
-       * length. Normally, the start of a new video packet can trigger the
-       * finalization of the previous packet. That is not possible if no
-       * more video is forthcoming, however. In that case, some other
-       * mechanism (like the end of the file) has to be employed. When it is
-       * clear that no additional data is forthcoming, calling this method
-       * will flush the buffered packets.
-       */
-
-      this.flushStreams_ = function () {
-        // !!THIS ORDER IS IMPORTANT!!
-        // video first then audio
-        flushStream(video, 'video');
-        flushStream(audio, 'audio');
-        flushStream(timedMetadata, 'timed-metadata');
-      };
-      this.flush = function () {
-        // if on flush we haven't had a pmt emitted
-        // and we have a pmt to emit. emit the pmt
-        // so that we trigger a trackinfo downstream.
-        if (!segmentHadPmt && programMapTable) {
-          var pmt = {
-            type: 'metadata',
-            tracks: []
-          }; // translate audio and video streams to tracks
-
-          if (programMapTable.video !== null) {
-            pmt.tracks.push({
-              timelineStartInfo: {
-                baseMediaDecodeTime: 0
-              },
-              id: +programMapTable.video,
-              codec: 'avc',
-              type: 'video'
-            });
-          }
-          if (programMapTable.audio !== null) {
-            pmt.tracks.push({
-              timelineStartInfo: {
-                baseMediaDecodeTime: 0
-              },
-              id: +programMapTable.audio,
-              codec: 'adts',
-              type: 'audio'
-            });
-          }
-          self.trigger('data', pmt);
-        }
-        segmentHadPmt = false;
-        this.flushStreams_();
-        this.trigger('done');
-      };
-    };
-    ElementaryStream.prototype = new Stream$4();
-    var m2ts$1 = {
-      PAT_PID: 0x0000,
-      MP2T_PACKET_LENGTH: MP2T_PACKET_LENGTH$1,
-      TransportPacketStream: TransportPacketStream,
-      TransportParseStream: TransportParseStream,
-      ElementaryStream: ElementaryStream,
-      TimestampRolloverStream: TimestampRolloverStream,
-      CaptionStream: CaptionStream$1.CaptionStream,
-      Cea608Stream: CaptionStream$1.Cea608Stream,
-      Cea708Stream: CaptionStream$1.Cea708Stream,
-      MetadataStream: metadataStream
-    };
-    for (var type in StreamTypes$2) {
-      if (StreamTypes$2.hasOwnProperty(type)) {
-        m2ts$1[type] = StreamTypes$2[type];
-      }
-    }
-    var m2ts_1 = m2ts$1;
-    /**
-     * mux.js
-     *
-     * Copyright (c) Brightcove
-     * Licensed Apache-2.0 https://github.com/videojs/mux.js/blob/master/LICENSE
-     */
-
-    var Stream$3 = stream;
-    var ONE_SECOND_IN_TS$2 = clock$2.ONE_SECOND_IN_TS;
-    var AdtsStream$1;
-    var ADTS_SAMPLING_FREQUENCIES$1 = [96000, 88200, 64000, 48000, 44100, 32000, 24000, 22050, 16000, 12000, 11025, 8000, 7350];
-    /*
-     * Accepts a ElementaryStream and emits data events with parsed
-     * AAC Audio Frames of the individual packets. Input audio in ADTS
-     * format is unpacked and re-emitted as AAC frames.
-     *
-     * @see http://wiki.multimedia.cx/index.php?title=ADTS
-     * @see http://wiki.multimedia.cx/?title=Understanding_AAC
-     */
-
-    AdtsStream$1 = function (handlePartialSegments) {
-      var buffer,
-        frameNum = 0;
-      AdtsStream$1.prototype.init.call(this);
-      this.skipWarn_ = function (start, end) {
-        this.trigger('log', {
-          level: 'warn',
-          message: `adts skiping bytes ${start} to ${end} in frame ${frameNum} outside syncword`
-        });
-      };
-      this.push = function (packet) {
-        var i = 0,
-          frameLength,
-          protectionSkipBytes,
-          oldBuffer,
-          sampleCount,
-          adtsFrameDuration;
-        if (!handlePartialSegments) {
-          frameNum = 0;
-        }
-        if (packet.type !== 'audio') {
-          // ignore non-audio data
-          return;
-        } // Prepend any data in the buffer to the input data so that we can parse
-        // aac frames the cross a PES packet boundary
-
-        if (buffer && buffer.length) {
-          oldBuffer = buffer;
-          buffer = new Uint8Array(oldBuffer.byteLength + packet.data.byteLength);
-          buffer.set(oldBuffer);
-          buffer.set(packet.data, oldBuffer.byteLength);
-        } else {
-          buffer = packet.data;
-        } // unpack any ADTS frames which have been fully received
-        // for details on the ADTS header, see http://wiki.multimedia.cx/index.php?title=ADTS
-
-        var skip; // We use i + 7 here because we want to be able to parse the entire header.
-        // If we don't have enough bytes to do that, then we definitely won't have a full frame.
-
-        while (i + 7 < buffer.length) {
-          // Look for the start of an ADTS header..
-          if (buffer[i] !== 0xFF || (buffer[i + 1] & 0xF6) !== 0xF0) {
-            if (typeof skip !== 'number') {
-              skip = i;
-            } // If a valid header was not found,  jump one forward and attempt to
-            // find a valid ADTS header starting at the next byte
-
-            i++;
-            continue;
-          }
-          if (typeof skip === 'number') {
-            this.skipWarn_(skip, i);
-            skip = null;
-          } // The protection skip bit tells us if we have 2 bytes of CRC data at the
-          // end of the ADTS header
-
-          protectionSkipBytes = (~buffer[i + 1] & 0x01) * 2; // Frame length is a 13 bit integer starting 16 bits from the
-          // end of the sync sequence
-          // NOTE: frame length includes the size of the header
-
-          frameLength = (buffer[i + 3] & 0x03) << 11 | buffer[i + 4] << 3 | (buffer[i + 5] & 0xe0) >> 5;
-          sampleCount = ((buffer[i + 6] & 0x03) + 1) * 1024;
-          adtsFrameDuration = sampleCount * ONE_SECOND_IN_TS$2 / ADTS_SAMPLING_FREQUENCIES$1[(buffer[i + 2] & 0x3c) >>> 2]; // If we don't have enough data to actually finish this ADTS frame,
-          // then we have to wait for more data
-
-          if (buffer.byteLength - i < frameLength) {
-            break;
-          } // Otherwise, deliver the complete AAC frame
-
-          this.trigger('data', {
-            pts: packet.pts + frameNum * adtsFrameDuration,
-            dts: packet.dts + frameNum * adtsFrameDuration,
-            sampleCount: sampleCount,
-            audioobjecttype: (buffer[i + 2] >>> 6 & 0x03) + 1,
-            channelcount: (buffer[i + 2] & 1) << 2 | (buffer[i + 3] & 0xc0) >>> 6,
-            samplerate: ADTS_SAMPLING_FREQUENCIES$1[(buffer[i + 2] & 0x3c) >>> 2],
-            samplingfrequencyindex: (buffer[i + 2] & 0x3c) >>> 2,
-            // assume ISO/IEC 14496-12 AudioSampleEntry default of 16
-            samplesize: 16,
-            // data is the frame without it's header
-            data: buffer.subarray(i + 7 + protectionSkipBytes, i + frameLength)
-          });
-          frameNum++;
-          i += frameLength;
-        }
-        if (typeof skip === 'number') {
-          this.skipWarn_(skip, i);
-          skip = null;
-        } // remove processed bytes from the buffer.
-
-        buffer = buffer.subarray(i);
-      };
-      this.flush = function () {
-        frameNum = 0;
-        this.trigger('done');
-      };
-      this.reset = function () {
-        buffer = void 0;
-        this.trigger('reset');
-      };
-      this.endTimeline = function () {
-        buffer = void 0;
-        this.trigger('endedtimeline');
-      };
-    };
-    AdtsStream$1.prototype = new Stream$3();
-    var adts = AdtsStream$1;
-    /**
-     * mux.js
-     *
-     * Copyright (c) Brightcove
-     * Licensed Apache-2.0 https://github.com/videojs/mux.js/blob/master/LICENSE
-     */
-
-    var ExpGolomb$1;
-    /**
-     * Parser for exponential Golomb codes, a variable-bitwidth number encoding
-     * scheme used by h264.
-     */
-
-    ExpGolomb$1 = function (workingData) {
-      var
-        // the number of bytes left to examine in workingData
-        workingBytesAvailable = workingData.byteLength,
-        // the current word being examined
-        workingWord = 0,
-        // :uint
-        // the number of bits left to examine in the current word
-        workingBitsAvailable = 0; // :uint;
-      // ():uint
-
-      this.length = function () {
-        return 8 * workingBytesAvailable;
-      }; // ():uint
-
-      this.bitsAvailable = function () {
-        return 8 * workingBytesAvailable + workingBitsAvailable;
-      }; // ():void
-
-      this.loadWord = function () {
-        var position = workingData.byteLength - workingBytesAvailable,
-          workingBytes = new Uint8Array(4),
-          availableBytes = Math.min(4, workingBytesAvailable);
-        if (availableBytes === 0) {
-          throw new Error('no bytes available');
-        }
-        workingBytes.set(workingData.subarray(position, position + availableBytes));
-        workingWord = new DataView(workingBytes.buffer).getUint32(0); // track the amount of workingData that has been processed
-
-        workingBitsAvailable = availableBytes * 8;
-        workingBytesAvailable -= availableBytes;
-      }; // (count:int):void
-
-      this.skipBits = function (count) {
-        var skipBytes; // :int
-
-        if (workingBitsAvailable > count) {
-          workingWord <<= count;
-          workingBitsAvailable -= count;
-        } else {
-          count -= workingBitsAvailable;
-          skipBytes = Math.floor(count / 8);
-          count -= skipBytes * 8;
-          workingBytesAvailable -= skipBytes;
-          this.loadWord();
-          workingWord <<= count;
-          workingBitsAvailable -= count;
-        }
-      }; // (size:int):uint
-
-      this.readBits = function (size) {
-        var bits = Math.min(workingBitsAvailable, size),
-          // :uint
-          valu = workingWord >>> 32 - bits; // :uint
-        // if size > 31, handle error
-
-        workingBitsAvailable -= bits;
-        if (workingBitsAvailable > 0) {
-          workingWord <<= bits;
-        } else if (workingBytesAvailable > 0) {
-          this.loadWord();
-        }
-        bits = size - bits;
-        if (bits > 0) {
-          return valu << bits | this.readBits(bits);
-        }
-        return valu;
-      }; // ():uint
-
-      this.skipLeadingZeros = function () {
-        var leadingZeroCount; // :uint
-
-        for (leadingZeroCount = 0; leadingZeroCount < workingBitsAvailable; ++leadingZeroCount) {
-          if ((workingWord & 0x80000000 >>> leadingZeroCount) !== 0) {
-            // the first bit of working word is 1
-            workingWord <<= leadingZeroCount;
-            workingBitsAvailable -= leadingZeroCount;
-            return leadingZeroCount;
-          }
-        } // we exhausted workingWord and still have not found a 1
-
-        this.loadWord();
-        return leadingZeroCount + this.skipLeadingZeros();
-      }; // ():void
-
-      this.skipUnsignedExpGolomb = function () {
-        this.skipBits(1 + this.skipLeadingZeros());
-      }; // ():void
-
-      this.skipExpGolomb = function () {
-        this.skipBits(1 + this.skipLeadingZeros());
-      }; // ():uint
-
-      this.readUnsignedExpGolomb = function () {
-        var clz = this.skipLeadingZeros(); // :uint
-
-        return this.readBits(clz + 1) - 1;
-      }; // ():int
-
-      this.readExpGolomb = function () {
-        var valu = this.readUnsignedExpGolomb(); // :int
-
-        if (0x01 & valu) {
-          // the number is odd if the low order bit is set
-          return 1 + valu >>> 1; // add 1 to make it even, and divide by 2
-        }
-
-        return -1 * (valu >>> 1); // divide by two then make it negative
-      }; // Some convenience functions
-      // :Boolean
-
-      this.readBoolean = function () {
-        return this.readBits(1) === 1;
-      }; // ():int
-
-      this.readUnsignedByte = function () {
-        return this.readBits(8);
-      };
-      this.loadWord();
-    };
-    var expGolomb = ExpGolomb$1;
-    /**
-     * mux.js
-     *
-     * Copyright (c) Brightcove
-     * Licensed Apache-2.0 https://github.com/videojs/mux.js/blob/master/LICENSE
-     */
-
-    var Stream$2 = stream;
-    var ExpGolomb = expGolomb;
-    var H264Stream$1, NalByteStream;
-    var PROFILES_WITH_OPTIONAL_SPS_DATA;
-    /**
-     * Accepts a NAL unit byte stream and unpacks the embedded NAL units.
-     */
-
-    NalByteStream = function () {
-      var syncPoint = 0,
-        i,
-        buffer;
-      NalByteStream.prototype.init.call(this);
-      /*
-       * Scans a byte stream and triggers a data event with the NAL units found.
-       * @param {Object} data Event received from H264Stream
-       * @param {Uint8Array} data.data The h264 byte stream to be scanned
-       *
-       * @see H264Stream.push
-       */
-
-      this.push = function (data) {
-        var swapBuffer;
-        if (!buffer) {
-          buffer = data.data;
-        } else {
-          swapBuffer = new Uint8Array(buffer.byteLength + data.data.byteLength);
-          swapBuffer.set(buffer);
-          swapBuffer.set(data.data, buffer.byteLength);
-          buffer = swapBuffer;
-        }
-        var len = buffer.byteLength; // Rec. ITU-T H.264, Annex B
-        // scan for NAL unit boundaries
-        // a match looks like this:
-        // 0 0 1 .. NAL .. 0 0 1
-        // ^ sync point        ^ i
-        // or this:
-        // 0 0 1 .. NAL .. 0 0 0
-        // ^ sync point        ^ i
-        // advance the sync point to a NAL start, if necessary
-
-        for (; syncPoint < len - 3; syncPoint++) {
-          if (buffer[syncPoint + 2] === 1) {
-            // the sync point is properly aligned
-            i = syncPoint + 5;
-            break;
-          }
-        }
-        while (i < len) {
-          // look at the current byte to determine if we've hit the end of
-          // a NAL unit boundary
-          switch (buffer[i]) {
-            case 0:
-              // skip past non-sync sequences
-              if (buffer[i - 1] !== 0) {
-                i += 2;
-                break;
-              } else if (buffer[i - 2] !== 0) {
-                i++;
-                break;
-              } // deliver the NAL unit if it isn't empty
-
-              if (syncPoint + 3 !== i - 2) {
-                this.trigger('data', buffer.subarray(syncPoint + 3, i - 2));
-              } // drop trailing zeroes
-
-              do {
-                i++;
-              } while (buffer[i] !== 1 && i < len);
-              syncPoint = i - 2;
-              i += 3;
-              break;
-            case 1:
-              // skip past non-sync sequences
-              if (buffer[i - 1] !== 0 || buffer[i - 2] !== 0) {
-                i += 3;
-                break;
-              } // deliver the NAL unit
-
-              this.trigger('data', buffer.subarray(syncPoint + 3, i - 2));
-              syncPoint = i - 2;
-              i += 3;
-              break;
-            default:
-              // the current byte isn't a one or zero, so it cannot be part
-              // of a sync sequence
-              i += 3;
-              break;
-          }
-        } // filter out the NAL units that were delivered
-
-        buffer = buffer.subarray(syncPoint);
-        i -= syncPoint;
-        syncPoint = 0;
-      };
-      this.reset = function () {
-        buffer = null;
-        syncPoint = 0;
-        this.trigger('reset');
-      };
-      this.flush = function () {
-        // deliver the last buffered NAL unit
-        if (buffer && buffer.byteLength > 3) {
-          this.trigger('data', buffer.subarray(syncPoint + 3));
-        } // reset the stream state
-
-        buffer = null;
-        syncPoint = 0;
-        this.trigger('done');
-      };
-      this.endTimeline = function () {
-        this.flush();
-        this.trigger('endedtimeline');
-      };
-    };
-    NalByteStream.prototype = new Stream$2(); // values of profile_idc that indicate additional fields are included in the SPS
-    // see Recommendation ITU-T H.264 (4/2013),
-    // 7.3.2.1.1 Sequence parameter set data syntax
-
-    PROFILES_WITH_OPTIONAL_SPS_DATA = {
-      100: true,
-      110: true,
-      122: true,
-      244: true,
-      44: true,
-      83: true,
-      86: true,
-      118: true,
-      128: true,
-      // TODO: the three profiles below don't
-      // appear to have sps data in the specificiation anymore?
-      138: true,
-      139: true,
-      134: true
-    };
-    /**
-     * Accepts input from a ElementaryStream and produces H.264 NAL unit data
-     * events.
-     */
-
-    H264Stream$1 = function () {
-      var nalByteStream = new NalByteStream(),
-        self,
-        trackId,
-        currentPts,
-        currentDts,
-        discardEmulationPreventionBytes,
-        readSequenceParameterSet,
-        skipScalingList;
-      H264Stream$1.prototype.init.call(this);
-      self = this;
-      /*
-       * Pushes a packet from a stream onto the NalByteStream
-       *
-       * @param {Object} packet - A packet received from a stream
-       * @param {Uint8Array} packet.data - The raw bytes of the packet
-       * @param {Number} packet.dts - Decode timestamp of the packet
-       * @param {Number} packet.pts - Presentation timestamp of the packet
-       * @param {Number} packet.trackId - The id of the h264 track this packet came from
-       * @param {('video'|'audio')} packet.type - The type of packet
-       *
-       */
-
-      this.push = function (packet) {
-        if (packet.type !== 'video') {
-          return;
-        }
-        trackId = packet.trackId;
-        currentPts = packet.pts;
-        currentDts = packet.dts;
-        nalByteStream.push(packet);
-      };
-      /*
-       * Identify NAL unit types and pass on the NALU, trackId, presentation and decode timestamps
-       * for the NALUs to the next stream component.
-       * Also, preprocess caption and sequence parameter NALUs.
-       *
-       * @param {Uint8Array} data - A NAL unit identified by `NalByteStream.push`
-       * @see NalByteStream.push
-       */
-
-      nalByteStream.on('data', function (data) {
-        var event = {
-          trackId: trackId,
-          pts: currentPts,
-          dts: currentDts,
-          data: data,
-          nalUnitTypeCode: data[0] & 0x1f
-        };
-        switch (event.nalUnitTypeCode) {
-          case 0x05:
-            event.nalUnitType = 'slice_layer_without_partitioning_rbsp_idr';
-            break;
-          case 0x06:
-            event.nalUnitType = 'sei_rbsp';
-            event.escapedRBSP = discardEmulationPreventionBytes(data.subarray(1));
-            break;
-          case 0x07:
-            event.nalUnitType = 'seq_parameter_set_rbsp';
-            event.escapedRBSP = discardEmulationPreventionBytes(data.subarray(1));
-            event.config = readSequenceParameterSet(event.escapedRBSP);
-            break;
-          case 0x08:
-            event.nalUnitType = 'pic_parameter_set_rbsp';
-            break;
-          case 0x09:
-            event.nalUnitType = 'access_unit_delimiter_rbsp';
-            break;
-        } // This triggers data on the H264Stream
-
-        self.trigger('data', event);
-      });
-      nalByteStream.on('done', function () {
-        self.trigger('done');
-      });
-      nalByteStream.on('partialdone', function () {
-        self.trigger('partialdone');
-      });
-      nalByteStream.on('reset', function () {
-        self.trigger('reset');
-      });
-      nalByteStream.on('endedtimeline', function () {
-        self.trigger('endedtimeline');
-      });
-      this.flush = function () {
-        nalByteStream.flush();
-      };
-      this.partialFlush = function () {
-        nalByteStream.partialFlush();
-      };
-      this.reset = function () {
-        nalByteStream.reset();
-      };
-      this.endTimeline = function () {
-        nalByteStream.endTimeline();
-      };
-      /**
-       * Advance the ExpGolomb decoder past a scaling list. The scaling
-       * list is optionally transmitted as part of a sequence parameter
-       * set and is not relevant to transmuxing.
-       * @param count {number} the number of entries in this scaling list
-       * @param expGolombDecoder {object} an ExpGolomb pointed to the
-       * start of a scaling list
-       * @see Recommendation ITU-T H.264, Section 7.3.2.1.1.1
-       */
-
-      skipScalingList = function (count, expGolombDecoder) {
-        var lastScale = 8,
-          nextScale = 8,
-          j,
-          deltaScale;
-        for (j = 0; j < count; j++) {
-          if (nextScale !== 0) {
-            deltaScale = expGolombDecoder.readExpGolomb();
-            nextScale = (lastScale + deltaScale + 256) % 256;
-          }
-          lastScale = nextScale === 0 ? lastScale : nextScale;
-        }
-      };
-      /**
-       * Expunge any "Emulation Prevention" bytes from a "Raw Byte
-       * Sequence Payload"
-       * @param data {Uint8Array} the bytes of a RBSP from a NAL
-       * unit
-       * @return {Uint8Array} the RBSP without any Emulation
-       * Prevention Bytes
-       */
-
-      discardEmulationPreventionBytes = function (data) {
-        var length = data.byteLength,
-          emulationPreventionBytesPositions = [],
-          i = 1,
-          newLength,
-          newData; // Find all `Emulation Prevention Bytes`
-
-        while (i < length - 2) {
-          if (data[i] === 0 && data[i + 1] === 0 && data[i + 2] === 0x03) {
-            emulationPreventionBytesPositions.push(i + 2);
-            i += 2;
-          } else {
-            i++;
-          }
-        } // If no Emulation Prevention Bytes were found just return the original
-        // array
-
-        if (emulationPreventionBytesPositions.length === 0) {
-          return data;
-        } // Create a new array to hold the NAL unit data
-
-        newLength = length - emulationPreventionBytesPositions.length;
-        newData = new Uint8Array(newLength);
-        var sourceIndex = 0;
-        for (i = 0; i < newLength; sourceIndex++, i++) {
-          if (sourceIndex === emulationPreventionBytesPositions[0]) {
-            // Skip this byte
-            sourceIndex++; // Remove this position index
-
-            emulationPreventionBytesPositions.shift();
-          }
-          newData[i] = data[sourceIndex];
-        }
-        return newData;
-      };
-      /**
-       * Read a sequence parameter set and return some interesting video
-       * properties. A sequence parameter set is the H264 metadata that
-       * describes the properties of upcoming video frames.
-       * @param data {Uint8Array} the bytes of a sequence parameter set
-       * @return {object} an object with configuration parsed from the
-       * sequence parameter set, including the dimensions of the
-       * associated video frames.
-       */
-
-      readSequenceParameterSet = function (data) {
-        var frameCropLeftOffset = 0,
-          frameCropRightOffset = 0,
-          frameCropTopOffset = 0,
-          frameCropBottomOffset = 0,
-          expGolombDecoder,
-          profileIdc,
-          levelIdc,
-          profileCompatibility,
-          chromaFormatIdc,
-          picOrderCntType,
-          numRefFramesInPicOrderCntCycle,
-          picWidthInMbsMinus1,
-          picHeightInMapUnitsMinus1,
-          frameMbsOnlyFlag,
-          scalingListCount,
-          sarRatio = [1, 1],
-          aspectRatioIdc,
-          i;
-        expGolombDecoder = new ExpGolomb(data);
-        profileIdc = expGolombDecoder.readUnsignedByte(); // profile_idc
-
-        profileCompatibility = expGolombDecoder.readUnsignedByte(); // constraint_set[0-5]_flag
-
-        levelIdc = expGolombDecoder.readUnsignedByte(); // level_idc u(8)
-
-        expGolombDecoder.skipUnsignedExpGolomb(); // seq_parameter_set_id
-        // some profiles have more optional data we don't need
-
-        if (PROFILES_WITH_OPTIONAL_SPS_DATA[profileIdc]) {
-          chromaFormatIdc = expGolombDecoder.readUnsignedExpGolomb();
-          if (chromaFormatIdc === 3) {
-            expGolombDecoder.skipBits(1); // separate_colour_plane_flag
-          }
-
-          expGolombDecoder.skipUnsignedExpGolomb(); // bit_depth_luma_minus8
-
-          expGolombDecoder.skipUnsignedExpGolomb(); // bit_depth_chroma_minus8
-
-          expGolombDecoder.skipBits(1); // qpprime_y_zero_transform_bypass_flag
-
-          if (expGolombDecoder.readBoolean()) {
-            // seq_scaling_matrix_present_flag
-            scalingListCount = chromaFormatIdc !== 3 ? 8 : 12;
-            for (i = 0; i < scalingListCount; i++) {
-              if (expGolombDecoder.readBoolean()) {
-                // seq_scaling_list_present_flag[ i ]
-                if (i < 6) {
-                  skipScalingList(16, expGolombDecoder);
-                } else {
-                  skipScalingList(64, expGolombDecoder);
-                }
-              }
-            }
-          }
-        }
-        expGolombDecoder.skipUnsignedExpGolomb(); // log2_max_frame_num_minus4
-
-        picOrderCntType = expGolombDecoder.readUnsignedExpGolomb();
-        if (picOrderCntType === 0) {
-          expGolombDecoder.readUnsignedExpGolomb(); // log2_max_pic_order_cnt_lsb_minus4
-        } else if (picOrderCntType === 1) {
-          expGolombDecoder.skipBits(1); // delta_pic_order_always_zero_flag
-
-          expGolombDecoder.skipExpGolomb(); // offset_for_non_ref_pic
-
-          expGolombDecoder.skipExpGolomb(); // offset_for_top_to_bottom_field
-
-          numRefFramesInPicOrderCntCycle = expGolombDecoder.readUnsignedExpGolomb();
-          for (i = 0; i < numRefFramesInPicOrderCntCycle; i++) {
-            expGolombDecoder.skipExpGolomb(); // offset_for_ref_frame[ i ]
-          }
-        }
-
-        expGolombDecoder.skipUnsignedExpGolomb(); // max_num_ref_frames
-
-        expGolombDecoder.skipBits(1); // gaps_in_frame_num_value_allowed_flag
-
-        picWidthInMbsMinus1 = expGolombDecoder.readUnsignedExpGolomb();
-        picHeightInMapUnitsMinus1 = expGolombDecoder.readUnsignedExpGolomb();
-        frameMbsOnlyFlag = expGolombDecoder.readBits(1);
-        if (frameMbsOnlyFlag === 0) {
-          expGolombDecoder.skipBits(1); // mb_adaptive_frame_field_flag
-        }
-
-        expGolombDecoder.skipBits(1); // direct_8x8_inference_flag
-
-        if (expGolombDecoder.readBoolean()) {
-          // frame_cropping_flag
-          frameCropLeftOffset = expGolombDecoder.readUnsignedExpGolomb();
-          frameCropRightOffset = expGolombDecoder.readUnsignedExpGolomb();
-          frameCropTopOffset = expGolombDecoder.readUnsignedExpGolomb();
-          frameCropBottomOffset = expGolombDecoder.readUnsignedExpGolomb();
-        }
-        if (expGolombDecoder.readBoolean()) {
-          // vui_parameters_present_flag
-          if (expGolombDecoder.readBoolean()) {
-            // aspect_ratio_info_present_flag
-            aspectRatioIdc = expGolombDecoder.readUnsignedByte();
-            switch (aspectRatioIdc) {
-              case 1:
-                sarRatio = [1, 1];
-                break;
-              case 2:
-                sarRatio = [12, 11];
-                break;
-              case 3:
-                sarRatio = [10, 11];
-                break;
-              case 4:
-                sarRatio = [16, 11];
-                break;
-              case 5:
-                sarRatio = [40, 33];
-                break;
-              case 6:
-                sarRatio = [24, 11];
-                break;
-              case 7:
-                sarRatio = [20, 11];
-                break;
-              case 8:
-                sarRatio = [32, 11];
-                break;
-              case 9:
-                sarRatio = [80, 33];
-                break;
-              case 10:
-                sarRatio = [18, 11];
-                break;
-              case 11:
-                sarRatio = [15, 11];
-                break;
-              case 12:
-                sarRatio = [64, 33];
-                break;
-              case 13:
-                sarRatio = [160, 99];
-                break;
-              case 14:
-                sarRatio = [4, 3];
-                break;
-              case 15:
-                sarRatio = [3, 2];
-                break;
-              case 16:
-                sarRatio = [2, 1];
-                break;
-              case 255:
-                {
-                  sarRatio = [expGolombDecoder.readUnsignedByte() << 8 | expGolombDecoder.readUnsignedByte(), expGolombDecoder.readUnsignedByte() << 8 | expGolombDecoder.readUnsignedByte()];
-                  break;
-                }
-            }
-            if (sarRatio) {
-              sarRatio[0] / sarRatio[1];
-            }
-          }
-        }
-        return {
-          profileIdc: profileIdc,
-          levelIdc: levelIdc,
-          profileCompatibility: profileCompatibility,
-          width: (picWidthInMbsMinus1 + 1) * 16 - frameCropLeftOffset * 2 - frameCropRightOffset * 2,
-          height: (2 - frameMbsOnlyFlag) * (picHeightInMapUnitsMinus1 + 1) * 16 - frameCropTopOffset * 2 - frameCropBottomOffset * 2,
-          // sar is sample aspect ratio
-          sarRatio: sarRatio
-        };
-      };
-    };
-    H264Stream$1.prototype = new Stream$2();
-    var h264 = {
-      H264Stream: H264Stream$1,
-      NalByteStream: NalByteStream
-    };
-    /**
-     * mux.js
-     *
-     * Copyright (c) Brightcove
-     * Licensed Apache-2.0 https://github.com/videojs/mux.js/blob/master/LICENSE
-     *
-     * Utilities to detect basic properties and metadata about Aac data.
-     */
-
-    var ADTS_SAMPLING_FREQUENCIES = [96000, 88200, 64000, 48000, 44100, 32000, 24000, 22050, 16000, 12000, 11025, 8000, 7350];
-    var parseId3TagSize = function (header, byteIndex) {
-      var returnSize = header[byteIndex + 6] << 21 | header[byteIndex + 7] << 14 | header[byteIndex + 8] << 7 | header[byteIndex + 9],
-        flags = header[byteIndex + 5],
-        footerPresent = (flags & 16) >> 4; // if we get a negative returnSize clamp it to 0
-
-      returnSize = returnSize >= 0 ? returnSize : 0;
-      if (footerPresent) {
-        return returnSize + 20;
-      }
-      return returnSize + 10;
-    };
-    var getId3Offset = function (data, offset) {
-      if (data.length - offset < 10 || data[offset] !== 'I'.charCodeAt(0) || data[offset + 1] !== 'D'.charCodeAt(0) || data[offset + 2] !== '3'.charCodeAt(0)) {
-        return offset;
-      }
-      offset += parseId3TagSize(data, offset);
-      return getId3Offset(data, offset);
-    }; // TODO: use vhs-utils
-
-    var isLikelyAacData$1 = function (data) {
-      var offset = getId3Offset(data, 0);
-      return data.length >= offset + 2 && (data[offset] & 0xFF) === 0xFF && (data[offset + 1] & 0xF0) === 0xF0 &&
-      // verify that the 2 layer bits are 0, aka this
-      // is not mp3 data but aac data.
-      (data[offset + 1] & 0x16) === 0x10;
-    };
-    var parseSyncSafeInteger = function (data) {
-      return data[0] << 21 | data[1] << 14 | data[2] << 7 | data[3];
-    }; // return a percent-encoded representation of the specified byte range
-    // @see http://en.wikipedia.org/wiki/Percent-encoding
-
-    var percentEncode = function (bytes, start, end) {
-      var i,
-        result = '';
-      for (i = start; i < end; i++) {
-        result += '%' + ('00' + bytes[i].toString(16)).slice(-2);
-      }
-      return result;
-    }; // return the string representation of the specified byte range,
-    // interpreted as ISO-8859-1.
-
-    var parseIso88591 = function (bytes, start, end) {
-      return unescape(percentEncode(bytes, start, end)); // jshint ignore:line
-    };
-
-    var parseAdtsSize = function (header, byteIndex) {
-      var lowThree = (header[byteIndex + 5] & 0xE0) >> 5,
-        middle = header[byteIndex + 4] << 3,
-        highTwo = header[byteIndex + 3] & 0x3 << 11;
-      return highTwo | middle | lowThree;
-    };
-    var parseType$4 = function (header, byteIndex) {
-      if (header[byteIndex] === 'I'.charCodeAt(0) && header[byteIndex + 1] === 'D'.charCodeAt(0) && header[byteIndex + 2] === '3'.charCodeAt(0)) {
-        return 'timed-metadata';
-      } else if (header[byteIndex] & 0xff === 0xff && (header[byteIndex + 1] & 0xf0) === 0xf0) {
-        return 'audio';
-      }
-      return null;
-    };
-    var parseSampleRate = function (packet) {
-      var i = 0;
-      while (i + 5 < packet.length) {
-        if (packet[i] !== 0xFF || (packet[i + 1] & 0xF6) !== 0xF0) {
-          // If a valid header was not found,  jump one forward and attempt to
-          // find a valid ADTS header starting at the next byte
-          i++;
-          continue;
-        }
-        return ADTS_SAMPLING_FREQUENCIES[(packet[i + 2] & 0x3c) >>> 2];
-      }
-      return null;
-    };
-    var parseAacTimestamp = function (packet) {
-      var frameStart, frameSize, frame, frameHeader; // find the start of the first frame and the end of the tag
-
-      frameStart = 10;
-      if (packet[5] & 0x40) {
-        // advance the frame start past the extended header
-        frameStart += 4; // header size field
-
-        frameStart += parseSyncSafeInteger(packet.subarray(10, 14));
-      } // parse one or more ID3 frames
-      // http://id3.org/id3v2.3.0#ID3v2_frame_overview
-
-      do {
-        // determine the number of bytes in this frame
-        frameSize = parseSyncSafeInteger(packet.subarray(frameStart + 4, frameStart + 8));
-        if (frameSize < 1) {
-          return null;
-        }
-        frameHeader = String.fromCharCode(packet[frameStart], packet[frameStart + 1], packet[frameStart + 2], packet[frameStart + 3]);
-        if (frameHeader === 'PRIV') {
-          frame = packet.subarray(frameStart + 10, frameStart + frameSize + 10);
-          for (var i = 0; i < frame.byteLength; i++) {
-            if (frame[i] === 0) {
-              var owner = parseIso88591(frame, 0, i);
-              if (owner === 'com.apple.streaming.transportStreamTimestamp') {
-                var d = frame.subarray(i + 1);
-                var size = (d[3] & 0x01) << 30 | d[4] << 22 | d[5] << 14 | d[6] << 6 | d[7] >>> 2;
-                size *= 4;
-                size += d[7] & 0x03;
-                return size;
-              }
-              break;
-            }
-          }
-        }
-        frameStart += 10; // advance past the frame header
-
-        frameStart += frameSize; // advance past the frame body
-      } while (frameStart < packet.byteLength);
-      return null;
-    };
-    var utils = {
-      isLikelyAacData: isLikelyAacData$1,
-      parseId3TagSize: parseId3TagSize,
-      parseAdtsSize: parseAdtsSize,
-      parseType: parseType$4,
-      parseSampleRate: parseSampleRate,
-      parseAacTimestamp: parseAacTimestamp
-    };
-    /**
-     * mux.js
-     *
-     * Copyright (c) Brightcove
-     * Licensed Apache-2.0 https://github.com/videojs/mux.js/blob/master/LICENSE
-     *
-     * A stream-based aac to mp4 converter. This utility can be used to
-     * deliver mp4s to a SourceBuffer on platforms that support native
-     * Media Source Extensions.
-     */
-
-    var Stream$1 = stream;
-    var aacUtils = utils; // Constants
-
-    var AacStream$1;
-    /**
-     * Splits an incoming stream of binary data into ADTS and ID3 Frames.
-     */
-
-    AacStream$1 = function () {
-      var everything = new Uint8Array(),
-        timeStamp = 0;
-      AacStream$1.prototype.init.call(this);
-      this.setTimestamp = function (timestamp) {
-        timeStamp = timestamp;
-      };
-      this.push = function (bytes) {
-        var frameSize = 0,
-          byteIndex = 0,
-          bytesLeft,
-          chunk,
-          packet,
-          tempLength; // If there are bytes remaining from the last segment, prepend them to the
-        // bytes that were pushed in
-
-        if (everything.length) {
-          tempLength = everything.length;
-          everything = new Uint8Array(bytes.byteLength + tempLength);
-          everything.set(everything.subarray(0, tempLength));
-          everything.set(bytes, tempLength);
-        } else {
-          everything = bytes;
-        }
-        while (everything.length - byteIndex >= 3) {
-          if (everything[byteIndex] === 'I'.charCodeAt(0) && everything[byteIndex + 1] === 'D'.charCodeAt(0) && everything[byteIndex + 2] === '3'.charCodeAt(0)) {
-            // Exit early because we don't have enough to parse
-            // the ID3 tag header
-            if (everything.length - byteIndex < 10) {
-              break;
-            } // check framesize
-
-            frameSize = aacUtils.parseId3TagSize(everything, byteIndex); // Exit early if we don't have enough in the buffer
-            // to emit a full packet
-            // Add to byteIndex to support multiple ID3 tags in sequence
-
-            if (byteIndex + frameSize > everything.length) {
-              break;
-            }
-            chunk = {
-              type: 'timed-metadata',
-              data: everything.subarray(byteIndex, byteIndex + frameSize)
-            };
-            this.trigger('data', chunk);
-            byteIndex += frameSize;
-            continue;
-          } else if ((everything[byteIndex] & 0xff) === 0xff && (everything[byteIndex + 1] & 0xf0) === 0xf0) {
-            // Exit early because we don't have enough to parse
-            // the ADTS frame header
-            if (everything.length - byteIndex < 7) {
-              break;
-            }
-            frameSize = aacUtils.parseAdtsSize(everything, byteIndex); // Exit early if we don't have enough in the buffer
-            // to emit a full packet
-
-            if (byteIndex + frameSize > everything.length) {
-              break;
-            }
-            packet = {
-              type: 'audio',
-              data: everything.subarray(byteIndex, byteIndex + frameSize),
-              pts: timeStamp,
-              dts: timeStamp
-            };
-            this.trigger('data', packet);
-            byteIndex += frameSize;
-            continue;
-          }
-          byteIndex++;
-        }
-        bytesLeft = everything.length - byteIndex;
-        if (bytesLeft > 0) {
-          everything = everything.subarray(byteIndex);
-        } else {
-          everything = new Uint8Array();
-        }
-      };
-      this.reset = function () {
-        everything = new Uint8Array();
-        this.trigger('reset');
-      };
-      this.endTimeline = function () {
-        everything = new Uint8Array();
-        this.trigger('endedtimeline');
-      };
-    };
-    AacStream$1.prototype = new Stream$1();
-    var aac = AacStream$1;
-    var AUDIO_PROPERTIES$1 = ['audioobjecttype', 'channelcount', 'samplerate', 'samplingfrequencyindex', 'samplesize'];
-    var audioProperties = AUDIO_PROPERTIES$1;
-    var VIDEO_PROPERTIES$1 = ['width', 'height', 'profileIdc', 'levelIdc', 'profileCompatibility', 'sarRatio'];
-    var videoProperties = VIDEO_PROPERTIES$1;
-    /**
-     * mux.js
-     *
-     * Copyright (c) Brightcove
-     * Licensed Apache-2.0 https://github.com/videojs/mux.js/blob/master/LICENSE
-     *
-     * A stream-based mp2t to mp4 converter. This utility can be used to
-     * deliver mp4s to a SourceBuffer on platforms that support native
-     * Media Source Extensions.
-     */
-
-    var Stream = stream;
-    var mp4 = mp4Generator;
-    var frameUtils = frameUtils$1;
-    var audioFrameUtils = audioFrameUtils$1;
-    var trackDecodeInfo = trackDecodeInfo$1;
-    var m2ts = m2ts_1;
-    var clock = clock$2;
-    var AdtsStream = adts;
-    var H264Stream = h264.H264Stream;
-    var AacStream = aac;
-    var isLikelyAacData = utils.isLikelyAacData;
-    var ONE_SECOND_IN_TS$1 = clock$2.ONE_SECOND_IN_TS;
-    var AUDIO_PROPERTIES = audioProperties;
-    var VIDEO_PROPERTIES = videoProperties; // object types
-
-    var VideoSegmentStream, AudioSegmentStream, Transmuxer, CoalesceStream;
-    var retriggerForStream = function (key, event) {
-      event.stream = key;
-      this.trigger('log', event);
-    };
-    var addPipelineLogRetriggers = function (transmuxer, pipeline) {
-      var keys = Object.keys(pipeline);
-      for (var i = 0; i < keys.length; i++) {
-        var key = keys[i]; // skip non-stream keys and headOfPipeline
-        // which is just a duplicate
-
-        if (key === 'headOfPipeline' || !pipeline[key].on) {
-          continue;
-        }
-        pipeline[key].on('log', retriggerForStream.bind(transmuxer, key));
-      }
-    };
-    /**
-     * Compare two arrays (even typed) for same-ness
-     */
-
-    var arrayEquals = function (a, b) {
-      var i;
-      if (a.length !== b.length) {
-        return false;
-      } // compare the value of each element in the array
-
-      for (i = 0; i < a.length; i++) {
-        if (a[i] !== b[i]) {
-          return false;
-        }
-      }
-      return true;
-    };
-    var generateSegmentTimingInfo = function (baseMediaDecodeTime, startDts, startPts, endDts, endPts, prependedContentDuration) {
-      var ptsOffsetFromDts = startPts - startDts,
-        decodeDuration = endDts - startDts,
-        presentationDuration = endPts - startPts; // The PTS and DTS values are based on the actual stream times from the segment,
-      // however, the player time values will reflect a start from the baseMediaDecodeTime.
-      // In order to provide relevant values for the player times, base timing info on the
-      // baseMediaDecodeTime and the DTS and PTS durations of the segment.
-
-      return {
-        start: {
-          dts: baseMediaDecodeTime,
-          pts: baseMediaDecodeTime + ptsOffsetFromDts
-        },
-        end: {
-          dts: baseMediaDecodeTime + decodeDuration,
-          pts: baseMediaDecodeTime + presentationDuration
-        },
-        prependedContentDuration: prependedContentDuration,
-        baseMediaDecodeTime: baseMediaDecodeTime
-      };
-    };
-    /**
-     * Constructs a single-track, ISO BMFF media segment from AAC data
-     * events. The output of this stream can be fed to a SourceBuffer
-     * configured with a suitable initialization segment.
-     * @param track {object} track metadata configuration
-     * @param options {object} transmuxer options object
-     * @param options.keepOriginalTimestamps {boolean} If true, keep the timestamps
-     *        in the source; false to adjust the first segment to start at 0.
-     */
-
-    AudioSegmentStream = function (track, options) {
-      var adtsFrames = [],
-        sequenceNumber,
-        earliestAllowedDts = 0,
-        audioAppendStartTs = 0,
-        videoBaseMediaDecodeTime = Infinity;
-      options = options || {};
-      sequenceNumber = options.firstSequenceNumber || 0;
-      AudioSegmentStream.prototype.init.call(this);
-      this.push = function (data) {
-        trackDecodeInfo.collectDtsInfo(track, data);
-        if (track) {
-          AUDIO_PROPERTIES.forEach(function (prop) {
-            track[prop] = data[prop];
-          });
-        } // buffer audio data until end() is called
-
-        adtsFrames.push(data);
-      };
-      this.setEarliestDts = function (earliestDts) {
-        earliestAllowedDts = earliestDts;
-      };
-      this.setVideoBaseMediaDecodeTime = function (baseMediaDecodeTime) {
-        videoBaseMediaDecodeTime = baseMediaDecodeTime;
-      };
-      this.setAudioAppendStart = function (timestamp) {
-        audioAppendStartTs = timestamp;
-      };
-      this.flush = function () {
-        var frames, moof, mdat, boxes, frameDuration, segmentDuration, videoClockCyclesOfSilencePrefixed; // return early if no audio data has been observed
-
-        if (adtsFrames.length === 0) {
-          this.trigger('done', 'AudioSegmentStream');
-          return;
-        }
-        frames = audioFrameUtils.trimAdtsFramesByEarliestDts(adtsFrames, track, earliestAllowedDts);
-        track.baseMediaDecodeTime = trackDecodeInfo.calculateTrackBaseMediaDecodeTime(track, options.keepOriginalTimestamps); // amount of audio filled but the value is in video clock rather than audio clock
-
-        videoClockCyclesOfSilencePrefixed = audioFrameUtils.prefixWithSilence(track, frames, audioAppendStartTs, videoBaseMediaDecodeTime); // we have to build the index from byte locations to
-        // samples (that is, adts frames) in the audio data
-
-        track.samples = audioFrameUtils.generateSampleTable(frames); // concatenate the audio data to constuct the mdat
-
-        mdat = mp4.mdat(audioFrameUtils.concatenateFrameData(frames));
-        adtsFrames = [];
-        moof = mp4.moof(sequenceNumber, [track]);
-        boxes = new Uint8Array(moof.byteLength + mdat.byteLength); // bump the sequence number for next time
-
-        sequenceNumber++;
-        boxes.set(moof);
-        boxes.set(mdat, moof.byteLength);
-        trackDecodeInfo.clearDtsInfo(track);
-        frameDuration = Math.ceil(ONE_SECOND_IN_TS$1 * 1024 / track.samplerate); // TODO this check was added to maintain backwards compatibility (particularly with
-        // tests) on adding the timingInfo event. However, it seems unlikely that there's a
-        // valid use-case where an init segment/data should be triggered without associated
-        // frames. Leaving for now, but should be looked into.
-
-        if (frames.length) {
-          segmentDuration = frames.length * frameDuration;
-          this.trigger('segmentTimingInfo', generateSegmentTimingInfo(
-          // The audio track's baseMediaDecodeTime is in audio clock cycles, but the
-          // frame info is in video clock cycles. Convert to match expectation of
-          // listeners (that all timestamps will be based on video clock cycles).
-          clock.audioTsToVideoTs(track.baseMediaDecodeTime, track.samplerate),
-          // frame times are already in video clock, as is segment duration
-          frames[0].dts, frames[0].pts, frames[0].dts + segmentDuration, frames[0].pts + segmentDuration, videoClockCyclesOfSilencePrefixed || 0));
-          this.trigger('timingInfo', {
-            start: frames[0].pts,
-            end: frames[0].pts + segmentDuration
-          });
-        }
-        this.trigger('data', {
-          track: track,
-          boxes: boxes
-        });
-        this.trigger('done', 'AudioSegmentStream');
-      };
-      this.reset = function () {
-        trackDecodeInfo.clearDtsInfo(track);
-        adtsFrames = [];
-        this.trigger('reset');
-      };
-    };
-    AudioSegmentStream.prototype = new Stream();
-    /**
-     * Constructs a single-track, ISO BMFF media segment from H264 data
-     * events. The output of this stream can be fed to a SourceBuffer
-     * configured with a suitable initialization segment.
-     * @param track {object} track metadata configuration
-     * @param options {object} transmuxer options object
-     * @param options.alignGopsAtEnd {boolean} If true, start from the end of the
-     *        gopsToAlignWith list when attempting to align gop pts
-     * @param options.keepOriginalTimestamps {boolean} If true, keep the timestamps
-     *        in the source; false to adjust the first segment to start at 0.
-     */
-
-    VideoSegmentStream = function (track, options) {
-      var sequenceNumber,
-        nalUnits = [],
-        gopsToAlignWith = [],
-        config,
-        pps;
-      options = options || {};
-      sequenceNumber = options.firstSequenceNumber || 0;
-      VideoSegmentStream.prototype.init.call(this);
-      delete track.minPTS;
-      this.gopCache_ = [];
-      /**
-        * Constructs a ISO BMFF segment given H264 nalUnits
-        * @param {Object} nalUnit A data event representing a nalUnit
-        * @param {String} nalUnit.nalUnitType
-        * @param {Object} nalUnit.config Properties for a mp4 track
-        * @param {Uint8Array} nalUnit.data The nalUnit bytes
-        * @see lib/codecs/h264.js
-       **/
-
-      this.push = function (nalUnit) {
-        trackDecodeInfo.collectDtsInfo(track, nalUnit); // record the track config
-
-        if (nalUnit.nalUnitType === 'seq_parameter_set_rbsp' && !config) {
-          config = nalUnit.config;
-          track.sps = [nalUnit.data];
-          VIDEO_PROPERTIES.forEach(function (prop) {
-            track[prop] = config[prop];
-          }, this);
-        }
-        if (nalUnit.nalUnitType === 'pic_parameter_set_rbsp' && !pps) {
-          pps = nalUnit.data;
-          track.pps = [nalUnit.data];
-        } // buffer video until flush() is called
-
-        nalUnits.push(nalUnit);
-      };
-      /**
-        * Pass constructed ISO BMFF track and boxes on to the
-        * next stream in the pipeline
-       **/
-
-      this.flush = function () {
-        var frames,
-          gopForFusion,
-          gops,
-          moof,
-          mdat,
-          boxes,
-          prependedContentDuration = 0,
-          firstGop,
-          lastGop; // Throw away nalUnits at the start of the byte stream until
-        // we find the first AUD
-
-        while (nalUnits.length) {
-          if (nalUnits[0].nalUnitType === 'access_unit_delimiter_rbsp') {
-            break;
-          }
-          nalUnits.shift();
-        } // Return early if no video data has been observed
-
-        if (nalUnits.length === 0) {
-          this.resetStream_();
-          this.trigger('done', 'VideoSegmentStream');
-          return;
-        } // Organize the raw nal-units into arrays that represent
-        // higher-level constructs such as frames and gops
-        // (group-of-pictures)
-
-        frames = frameUtils.groupNalsIntoFrames(nalUnits);
-        gops = frameUtils.groupFramesIntoGops(frames); // If the first frame of this fragment is not a keyframe we have
-        // a problem since MSE (on Chrome) requires a leading keyframe.
-        //
-        // We have two approaches to repairing this situation:
-        // 1) GOP-FUSION:
-        //    This is where we keep track of the GOPS (group-of-pictures)
-        //    from previous fragments and attempt to find one that we can
-        //    prepend to the current fragment in order to create a valid
-        //    fragment.
-        // 2) KEYFRAME-PULLING:
-        //    Here we search for the first keyframe in the fragment and
-        //    throw away all the frames between the start of the fragment
-        //    and that keyframe. We then extend the duration and pull the
-        //    PTS of the keyframe forward so that it covers the time range
-        //    of the frames that were disposed of.
-        //
-        // #1 is far prefereable over #2 which can cause "stuttering" but
-        // requires more things to be just right.
-
-        if (!gops[0][0].keyFrame) {
-          // Search for a gop for fusion from our gopCache
-          gopForFusion = this.getGopForFusion_(nalUnits[0], track);
-          if (gopForFusion) {
-            // in order to provide more accurate timing information about the segment, save
-            // the number of seconds prepended to the original segment due to GOP fusion
-            prependedContentDuration = gopForFusion.duration;
-            gops.unshift(gopForFusion); // Adjust Gops' metadata to account for the inclusion of the
-            // new gop at the beginning
-
-            gops.byteLength += gopForFusion.byteLength;
-            gops.nalCount += gopForFusion.nalCount;
-            gops.pts = gopForFusion.pts;
-            gops.dts = gopForFusion.dts;
-            gops.duration += gopForFusion.duration;
-          } else {
-            // If we didn't find a candidate gop fall back to keyframe-pulling
-            gops = frameUtils.extendFirstKeyFrame(gops);
-          }
-        } // Trim gops to align with gopsToAlignWith
-
-        if (gopsToAlignWith.length) {
-          var alignedGops;
-          if (options.alignGopsAtEnd) {
-            alignedGops = this.alignGopsAtEnd_(gops);
-          } else {
-            alignedGops = this.alignGopsAtStart_(gops);
-          }
-          if (!alignedGops) {
-            // save all the nals in the last GOP into the gop cache
-            this.gopCache_.unshift({
-              gop: gops.pop(),
-              pps: track.pps,
-              sps: track.sps
-            }); // Keep a maximum of 6 GOPs in the cache
-
-            this.gopCache_.length = Math.min(6, this.gopCache_.length); // Clear nalUnits
-
-            nalUnits = []; // return early no gops can be aligned with desired gopsToAlignWith
-
-            this.resetStream_();
-            this.trigger('done', 'VideoSegmentStream');
-            return;
-          } // Some gops were trimmed. clear dts info so minSegmentDts and pts are correct
-          // when recalculated before sending off to CoalesceStream
-
-          trackDecodeInfo.clearDtsInfo(track);
-          gops = alignedGops;
-        }
-        trackDecodeInfo.collectDtsInfo(track, gops); // First, we have to build the index from byte locations to
-        // samples (that is, frames) in the video data
-
-        track.samples = frameUtils.generateSampleTable(gops); // Concatenate the video data and construct the mdat
-
-        mdat = mp4.mdat(frameUtils.concatenateNalData(gops));
-        track.baseMediaDecodeTime = trackDecodeInfo.calculateTrackBaseMediaDecodeTime(track, options.keepOriginalTimestamps);
-        this.trigger('processedGopsInfo', gops.map(function (gop) {
-          return {
-            pts: gop.pts,
-            dts: gop.dts,
-            byteLength: gop.byteLength
-          };
-        }));
-        firstGop = gops[0];
-        lastGop = gops[gops.length - 1];
-        this.trigger('segmentTimingInfo', generateSegmentTimingInfo(track.baseMediaDecodeTime, firstGop.dts, firstGop.pts, lastGop.dts + lastGop.duration, lastGop.pts + lastGop.duration, prependedContentDuration));
-        this.trigger('timingInfo', {
-          start: gops[0].pts,
-          end: gops[gops.length - 1].pts + gops[gops.length - 1].duration
-        }); // save all the nals in the last GOP into the gop cache
-
-        this.gopCache_.unshift({
-          gop: gops.pop(),
-          pps: track.pps,
-          sps: track.sps
-        }); // Keep a maximum of 6 GOPs in the cache
-
-        this.gopCache_.length = Math.min(6, this.gopCache_.length); // Clear nalUnits
-
-        nalUnits = [];
-        this.trigger('baseMediaDecodeTime', track.baseMediaDecodeTime);
-        this.trigger('timelineStartInfo', track.timelineStartInfo);
-        moof = mp4.moof(sequenceNumber, [track]); // it would be great to allocate this array up front instead of
-        // throwing away hundreds of media segment fragments
-
-        boxes = new Uint8Array(moof.byteLength + mdat.byteLength); // Bump the sequence number for next time
-
-        sequenceNumber++;
-        boxes.set(moof);
-        boxes.set(mdat, moof.byteLength);
-        this.trigger('data', {
-          track: track,
-          boxes: boxes
-        });
-        this.resetStream_(); // Continue with the flush process now
-
-        this.trigger('done', 'VideoSegmentStream');
-      };
-      this.reset = function () {
-        this.resetStream_();
-        nalUnits = [];
-        this.gopCache_.length = 0;
-        gopsToAlignWith.length = 0;
-        this.trigger('reset');
-      };
-      this.resetStream_ = function () {
-        trackDecodeInfo.clearDtsInfo(track); // reset config and pps because they may differ across segments
-        // for instance, when we are rendition switching
-
-        config = undefined;
-        pps = undefined;
-      }; // Search for a candidate Gop for gop-fusion from the gop cache and
-      // return it or return null if no good candidate was found
-
-      this.getGopForFusion_ = function (nalUnit) {
-        var halfSecond = 45000,
-          // Half-a-second in a 90khz clock
-          allowableOverlap = 10000,
-          // About 3 frames @ 30fps
-          nearestDistance = Infinity,
-          dtsDistance,
-          nearestGopObj,
-          currentGop,
-          currentGopObj,
-          i; // Search for the GOP nearest to the beginning of this nal unit
-
-        for (i = 0; i < this.gopCache_.length; i++) {
-          currentGopObj = this.gopCache_[i];
-          currentGop = currentGopObj.gop; // Reject Gops with different SPS or PPS
-
-          if (!(track.pps && arrayEquals(track.pps[0], currentGopObj.pps[0])) || !(track.sps && arrayEquals(track.sps[0], currentGopObj.sps[0]))) {
-            continue;
-          } // Reject Gops that would require a negative baseMediaDecodeTime
-
-          if (currentGop.dts < track.timelineStartInfo.dts) {
-            continue;
-          } // The distance between the end of the gop and the start of the nalUnit
-
-          dtsDistance = nalUnit.dts - currentGop.dts - currentGop.duration; // Only consider GOPS that start before the nal unit and end within
-          // a half-second of the nal unit
-
-          if (dtsDistance >= -allowableOverlap && dtsDistance <= halfSecond) {
-            // Always use the closest GOP we found if there is more than
-            // one candidate
-            if (!nearestGopObj || nearestDistance > dtsDistance) {
-              nearestGopObj = currentGopObj;
-              nearestDistance = dtsDistance;
-            }
-          }
-        }
-        if (nearestGopObj) {
-          return nearestGopObj.gop;
-        }
-        return null;
-      }; // trim gop list to the first gop found that has a matching pts with a gop in the list
-      // of gopsToAlignWith starting from the START of the list
-
-      this.alignGopsAtStart_ = function (gops) {
-        var alignIndex, gopIndex, align, gop, byteLength, nalCount, duration, alignedGops;
-        byteLength = gops.byteLength;
-        nalCount = gops.nalCount;
-        duration = gops.duration;
-        alignIndex = gopIndex = 0;
-        while (alignIndex < gopsToAlignWith.length && gopIndex < gops.length) {
-          align = gopsToAlignWith[alignIndex];
-          gop = gops[gopIndex];
-          if (align.pts === gop.pts) {
-            break;
-          }
-          if (gop.pts > align.pts) {
-            // this current gop starts after the current gop we want to align on, so increment
-            // align index
-            alignIndex++;
-            continue;
-          } // current gop starts before the current gop we want to align on. so increment gop
-          // index
-
-          gopIndex++;
-          byteLength -= gop.byteLength;
-          nalCount -= gop.nalCount;
-          duration -= gop.duration;
-        }
-        if (gopIndex === 0) {
-          // no gops to trim
-          return gops;
-        }
-        if (gopIndex === gops.length) {
-          // all gops trimmed, skip appending all gops
-          return null;
-        }
-        alignedGops = gops.slice(gopIndex);
-        alignedGops.byteLength = byteLength;
-        alignedGops.duration = duration;
-        alignedGops.nalCount = nalCount;
-        alignedGops.pts = alignedGops[0].pts;
-        alignedGops.dts = alignedGops[0].dts;
-        return alignedGops;
-      }; // trim gop list to the first gop found that has a matching pts with a gop in the list
-      // of gopsToAlignWith starting from the END of the list
-
-      this.alignGopsAtEnd_ = function (gops) {
-        var alignIndex, gopIndex, align, gop, alignEndIndex, matchFound;
-        alignIndex = gopsToAlignWith.length - 1;
-        gopIndex = gops.length - 1;
-        alignEndIndex = null;
-        matchFound = false;
-        while (alignIndex >= 0 && gopIndex >= 0) {
-          align = gopsToAlignWith[alignIndex];
-          gop = gops[gopIndex];
-          if (align.pts === gop.pts) {
-            matchFound = true;
-            break;
-          }
-          if (align.pts > gop.pts) {
-            alignIndex--;
-            continue;
-          }
-          if (alignIndex === gopsToAlignWith.length - 1) {
-            // gop.pts is greater than the last alignment candidate. If no match is found
-            // by the end of this loop, we still want to append gops that come after this
-            // point
-            alignEndIndex = gopIndex;
-          }
-          gopIndex--;
-        }
-        if (!matchFound && alignEndIndex === null) {
-          return null;
-        }
-        var trimIndex;
-        if (matchFound) {
-          trimIndex = gopIndex;
-        } else {
-          trimIndex = alignEndIndex;
-        }
-        if (trimIndex === 0) {
-          return gops;
-        }
-        var alignedGops = gops.slice(trimIndex);
-        var metadata = alignedGops.reduce(function (total, gop) {
-          total.byteLength += gop.byteLength;
-          total.duration += gop.duration;
-          total.nalCount += gop.nalCount;
-          return total;
-        }, {
-          byteLength: 0,
-          duration: 0,
-          nalCount: 0
-        });
-        alignedGops.byteLength = metadata.byteLength;
-        alignedGops.duration = metadata.duration;
-        alignedGops.nalCount = metadata.nalCount;
-        alignedGops.pts = alignedGops[0].pts;
-        alignedGops.dts = alignedGops[0].dts;
-        return alignedGops;
-      };
-      this.alignGopsWith = function (newGopsToAlignWith) {
-        gopsToAlignWith = newGopsToAlignWith;
-      };
-    };
-    VideoSegmentStream.prototype = new Stream();
-    /**
-     * A Stream that can combine multiple streams (ie. audio & video)
-     * into a single output segment for MSE. Also supports audio-only
-     * and video-only streams.
-     * @param options {object} transmuxer options object
-     * @param options.keepOriginalTimestamps {boolean} If true, keep the timestamps
-     *        in the source; false to adjust the first segment to start at media timeline start.
-     */
-
-    CoalesceStream = function (options, metadataStream) {
-      // Number of Tracks per output segment
-      // If greater than 1, we combine multiple
-      // tracks into a single segment
-      this.numberOfTracks = 0;
-      this.metadataStream = metadataStream;
-      options = options || {};
-      if (typeof options.remux !== 'undefined') {
-        this.remuxTracks = !!options.remux;
-      } else {
-        this.remuxTracks = true;
-      }
-      if (typeof options.keepOriginalTimestamps === 'boolean') {
-        this.keepOriginalTimestamps = options.keepOriginalTimestamps;
-      } else {
-        this.keepOriginalTimestamps = false;
-      }
-      this.pendingTracks = [];
-      this.videoTrack = null;
-      this.pendingBoxes = [];
-      this.pendingCaptions = [];
-      this.pendingMetadata = [];
-      this.pendingBytes = 0;
-      this.emittedTracks = 0;
-      CoalesceStream.prototype.init.call(this); // Take output from multiple
-
-      this.push = function (output) {
-        // buffer incoming captions until the associated video segment
-        // finishes
-        if (output.content || output.text) {
-          return this.pendingCaptions.push(output);
-        } // buffer incoming id3 tags until the final flush
-
-        if (output.frames) {
-          return this.pendingMetadata.push(output);
-        } // Add this track to the list of pending tracks and store
-        // important information required for the construction of
-        // the final segment
-
-        this.pendingTracks.push(output.track);
-        this.pendingBytes += output.boxes.byteLength; // TODO: is there an issue for this against chrome?
-        // We unshift audio and push video because
-        // as of Chrome 75 when switching from
-        // one init segment to another if the video
-        // mdat does not appear after the audio mdat
-        // only audio will play for the duration of our transmux.
-
-        if (output.track.type === 'video') {
-          this.videoTrack = output.track;
-          this.pendingBoxes.push(output.boxes);
-        }
-        if (output.track.type === 'audio') {
-          this.audioTrack = output.track;
-          this.pendingBoxes.unshift(output.boxes);
-        }
-      };
-    };
-    CoalesceStream.prototype = new Stream();
-    CoalesceStream.prototype.flush = function (flushSource) {
-      var offset = 0,
-        event = {
-          captions: [],
-          captionStreams: {},
-          metadata: [],
-          info: {}
-        },
-        caption,
-        id3,
-        initSegment,
-        timelineStartPts = 0,
-        i;
-      if (this.pendingTracks.length < this.numberOfTracks) {
-        if (flushSource !== 'VideoSegmentStream' && flushSource !== 'AudioSegmentStream') {
-          // Return because we haven't received a flush from a data-generating
-          // portion of the segment (meaning that we have only recieved meta-data
-          // or captions.)
-          return;
-        } else if (this.remuxTracks) {
-          // Return until we have enough tracks from the pipeline to remux (if we
-          // are remuxing audio and video into a single MP4)
-          return;
-        } else if (this.pendingTracks.length === 0) {
-          // In the case where we receive a flush without any data having been
-          // received we consider it an emitted track for the purposes of coalescing
-          // `done` events.
-          // We do this for the case where there is an audio and video track in the
-          // segment but no audio data. (seen in several playlists with alternate
-          // audio tracks and no audio present in the main TS segments.)
-          this.emittedTracks++;
-          if (this.emittedTracks >= this.numberOfTracks) {
-            this.trigger('done');
-            this.emittedTracks = 0;
-          }
-          return;
-        }
-      }
-      if (this.videoTrack) {
-        timelineStartPts = this.videoTrack.timelineStartInfo.pts;
-        VIDEO_PROPERTIES.forEach(function (prop) {
-          event.info[prop] = this.videoTrack[prop];
-        }, this);
-      } else if (this.audioTrack) {
-        timelineStartPts = this.audioTrack.timelineStartInfo.pts;
-        AUDIO_PROPERTIES.forEach(function (prop) {
-          event.info[prop] = this.audioTrack[prop];
-        }, this);
-      }
-      if (this.videoTrack || this.audioTrack) {
-        if (this.pendingTracks.length === 1) {
-          event.type = this.pendingTracks[0].type;
-        } else {
-          event.type = 'combined';
-        }
-        this.emittedTracks += this.pendingTracks.length;
-        initSegment = mp4.initSegment(this.pendingTracks); // Create a new typed array to hold the init segment
-
-        event.initSegment = new Uint8Array(initSegment.byteLength); // Create an init segment containing a moov
-        // and track definitions
-
-        event.initSegment.set(initSegment); // Create a new typed array to hold the moof+mdats
-
-        event.data = new Uint8Array(this.pendingBytes); // Append each moof+mdat (one per track) together
-
-        for (i = 0; i < this.pendingBoxes.length; i++) {
-          event.data.set(this.pendingBoxes[i], offset);
-          offset += this.pendingBoxes[i].byteLength;
-        } // Translate caption PTS times into second offsets to match the
-        // video timeline for the segment, and add track info
-
-        for (i = 0; i < this.pendingCaptions.length; i++) {
-          caption = this.pendingCaptions[i];
-          caption.startTime = clock.metadataTsToSeconds(caption.startPts, timelineStartPts, this.keepOriginalTimestamps);
-          caption.endTime = clock.metadataTsToSeconds(caption.endPts, timelineStartPts, this.keepOriginalTimestamps);
-          event.captionStreams[caption.stream] = true;
-          event.captions.push(caption);
-        } // Translate ID3 frame PTS times into second offsets to match the
-        // video timeline for the segment
-
-        for (i = 0; i < this.pendingMetadata.length; i++) {
-          id3 = this.pendingMetadata[i];
-          id3.cueTime = clock.metadataTsToSeconds(id3.pts, timelineStartPts, this.keepOriginalTimestamps);
-          event.metadata.push(id3);
-        } // We add this to every single emitted segment even though we only need
-        // it for the first
-
-        event.metadata.dispatchType = this.metadataStream.dispatchType; // Reset stream state
-
-        this.pendingTracks.length = 0;
-        this.videoTrack = null;
-        this.pendingBoxes.length = 0;
-        this.pendingCaptions.length = 0;
-        this.pendingBytes = 0;
-        this.pendingMetadata.length = 0; // Emit the built segment
-        // We include captions and ID3 tags for backwards compatibility,
-        // ideally we should send only video and audio in the data event
-
-        this.trigger('data', event); // Emit each caption to the outside world
-        // Ideally, this would happen immediately on parsing captions,
-        // but we need to ensure that video data is sent back first
-        // so that caption timing can be adjusted to match video timing
-
-        for (i = 0; i < event.captions.length; i++) {
-          caption = event.captions[i];
-          this.trigger('caption', caption);
-        } // Emit each id3 tag to the outside world
-        // Ideally, this would happen immediately on parsing the tag,
-        // but we need to ensure that video data is sent back first
-        // so that ID3 frame timing can be adjusted to match video timing
-
-        for (i = 0; i < event.metadata.length; i++) {
-          id3 = event.metadata[i];
-          this.trigger('id3Frame', id3);
-        }
-      } // Only emit `done` if all tracks have been flushed and emitted
-
-      if (this.emittedTracks >= this.numberOfTracks) {
-        this.trigger('done');
-        this.emittedTracks = 0;
-      }
-    };
-    CoalesceStream.prototype.setRemux = function (val) {
-      this.remuxTracks = val;
-    };
-    /**
-     * A Stream that expects MP2T binary data as input and produces
-     * corresponding media segments, suitable for use with Media Source
-     * Extension (MSE) implementations that support the ISO BMFF byte
-     * stream format, like Chrome.
-     */
-
-    Transmuxer = function (options) {
-      var self = this,
-        hasFlushed = true,
-        videoTrack,
-        audioTrack;
-      Transmuxer.prototype.init.call(this);
-      options = options || {};
-      this.baseMediaDecodeTime = options.baseMediaDecodeTime || 0;
-      this.transmuxPipeline_ = {};
-      this.setupAacPipeline = function () {
-        var pipeline = {};
-        this.transmuxPipeline_ = pipeline;
-        pipeline.type = 'aac';
-        pipeline.metadataStream = new m2ts.MetadataStream(); // set up the parsing pipeline
-
-        pipeline.aacStream = new AacStream();
-        pipeline.audioTimestampRolloverStream = new m2ts.TimestampRolloverStream('audio');
-        pipeline.timedMetadataTimestampRolloverStream = new m2ts.TimestampRolloverStream('timed-metadata');
-        pipeline.adtsStream = new AdtsStream();
-        pipeline.coalesceStream = new CoalesceStream(options, pipeline.metadataStream);
-        pipeline.headOfPipeline = pipeline.aacStream;
-        pipeline.aacStream.pipe(pipeline.audioTimestampRolloverStream).pipe(pipeline.adtsStream);
-        pipeline.aacStream.pipe(pipeline.timedMetadataTimestampRolloverStream).pipe(pipeline.metadataStream).pipe(pipeline.coalesceStream);
-        pipeline.metadataStream.on('timestamp', function (frame) {
-          pipeline.aacStream.setTimestamp(frame.timeStamp);
-        });
-        pipeline.aacStream.on('data', function (data) {
-          if (data.type !== 'timed-metadata' && data.type !== 'audio' || pipeline.audioSegmentStream) {
-            return;
-          }
-          audioTrack = audioTrack || {
-            timelineStartInfo: {
-              baseMediaDecodeTime: self.baseMediaDecodeTime
-            },
-            codec: 'adts',
-            type: 'audio'
-          }; // hook up the audio segment stream to the first track with aac data
-
-          pipeline.coalesceStream.numberOfTracks++;
-          pipeline.audioSegmentStream = new AudioSegmentStream(audioTrack, options);
-          pipeline.audioSegmentStream.on('log', self.getLogTrigger_('audioSegmentStream'));
-          pipeline.audioSegmentStream.on('timingInfo', self.trigger.bind(self, 'audioTimingInfo')); // Set up the final part of the audio pipeline
-
-          pipeline.adtsStream.pipe(pipeline.audioSegmentStream).pipe(pipeline.coalesceStream); // emit pmt info
-
-          self.trigger('trackinfo', {
-            hasAudio: !!audioTrack,
-            hasVideo: !!videoTrack
-          });
-        }); // Re-emit any data coming from the coalesce stream to the outside world
-
-        pipeline.coalesceStream.on('data', this.trigger.bind(this, 'data')); // Let the consumer know we have finished flushing the entire pipeline
-
-        pipeline.coalesceStream.on('done', this.trigger.bind(this, 'done'));
-        addPipelineLogRetriggers(this, pipeline);
-      };
-      this.setupTsPipeline = function () {
-        var pipeline = {};
-        this.transmuxPipeline_ = pipeline;
-        pipeline.type = 'ts';
-        pipeline.metadataStream = new m2ts.MetadataStream(); // set up the parsing pipeline
-
-        pipeline.packetStream = new m2ts.TransportPacketStream();
-        pipeline.parseStream = new m2ts.TransportParseStream();
-        pipeline.elementaryStream = new m2ts.ElementaryStream();
-        pipeline.timestampRolloverStream = new m2ts.TimestampRolloverStream();
-        pipeline.adtsStream = new AdtsStream();
-        pipeline.h264Stream = new H264Stream();
-        pipeline.captionStream = new m2ts.CaptionStream(options);
-        pipeline.coalesceStream = new CoalesceStream(options, pipeline.metadataStream);
-        pipeline.headOfPipeline = pipeline.packetStream; // disassemble MPEG2-TS packets into elementary streams
-
-        pipeline.packetStream.pipe(pipeline.parseStream).pipe(pipeline.elementaryStream).pipe(pipeline.timestampRolloverStream); // !!THIS ORDER IS IMPORTANT!!
-        // demux the streams
-
-        pipeline.timestampRolloverStream.pipe(pipeline.h264Stream);
-        pipeline.timestampRolloverStream.pipe(pipeline.adtsStream);
-        pipeline.timestampRolloverStream.pipe(pipeline.metadataStream).pipe(pipeline.coalesceStream); // Hook up CEA-608/708 caption stream
-
-        pipeline.h264Stream.pipe(pipeline.captionStream).pipe(pipeline.coalesceStream);
-        pipeline.elementaryStream.on('data', function (data) {
-          var i;
-          if (data.type === 'metadata') {
-            i = data.tracks.length; // scan the tracks listed in the metadata
-
-            while (i--) {
-              if (!videoTrack && data.tracks[i].type === 'video') {
-                videoTrack = data.tracks[i];
-                videoTrack.timelineStartInfo.baseMediaDecodeTime = self.baseMediaDecodeTime;
-              } else if (!audioTrack && data.tracks[i].type === 'audio') {
-                audioTrack = data.tracks[i];
-                audioTrack.timelineStartInfo.baseMediaDecodeTime = self.baseMediaDecodeTime;
-              }
-            } // hook up the video segment stream to the first track with h264 data
-
-            if (videoTrack && !pipeline.videoSegmentStream) {
-              pipeline.coalesceStream.numberOfTracks++;
-              pipeline.videoSegmentStream = new VideoSegmentStream(videoTrack, options);
-              pipeline.videoSegmentStream.on('log', self.getLogTrigger_('videoSegmentStream'));
-              pipeline.videoSegmentStream.on('timelineStartInfo', function (timelineStartInfo) {
-                // When video emits timelineStartInfo data after a flush, we forward that
-                // info to the AudioSegmentStream, if it exists, because video timeline
-                // data takes precedence.  Do not do this if keepOriginalTimestamps is set,
-                // because this is a particularly subtle form of timestamp alteration.
-                if (audioTrack && !options.keepOriginalTimestamps) {
-                  audioTrack.timelineStartInfo = timelineStartInfo; // On the first segment we trim AAC frames that exist before the
-                  // very earliest DTS we have seen in video because Chrome will
-                  // interpret any video track with a baseMediaDecodeTime that is
-                  // non-zero as a gap.
-
-                  pipeline.audioSegmentStream.setEarliestDts(timelineStartInfo.dts - self.baseMediaDecodeTime);
-                }
-              });
-              pipeline.videoSegmentStream.on('processedGopsInfo', self.trigger.bind(self, 'gopInfo'));
-              pipeline.videoSegmentStream.on('segmentTimingInfo', self.trigger.bind(self, 'videoSegmentTimingInfo'));
-              pipeline.videoSegmentStream.on('baseMediaDecodeTime', function (baseMediaDecodeTime) {
-                if (audioTrack) {
-                  pipeline.audioSegmentStream.setVideoBaseMediaDecodeTime(baseMediaDecodeTime);
-                }
-              });
-              pipeline.videoSegmentStream.on('timingInfo', self.trigger.bind(self, 'videoTimingInfo')); // Set up the final part of the video pipeline
-
-              pipeline.h264Stream.pipe(pipeline.videoSegmentStream).pipe(pipeline.coalesceStream);
-            }
-            if (audioTrack && !pipeline.audioSegmentStream) {
-              // hook up the audio segment stream to the first track with aac data
-              pipeline.coalesceStream.numberOfTracks++;
-              pipeline.audioSegmentStream = new AudioSegmentStream(audioTrack, options);
-              pipeline.audioSegmentStream.on('log', self.getLogTrigger_('audioSegmentStream'));
-              pipeline.audioSegmentStream.on('timingInfo', self.trigger.bind(self, 'audioTimingInfo'));
-              pipeline.audioSegmentStream.on('segmentTimingInfo', self.trigger.bind(self, 'audioSegmentTimingInfo')); // Set up the final part of the audio pipeline
-
-              pipeline.adtsStream.pipe(pipeline.audioSegmentStream).pipe(pipeline.coalesceStream);
-            } // emit pmt info
-
-            self.trigger('trackinfo', {
-              hasAudio: !!audioTrack,
-              hasVideo: !!videoTrack
-            });
-          }
-        }); // Re-emit any data coming from the coalesce stream to the outside world
-
-        pipeline.coalesceStream.on('data', this.trigger.bind(this, 'data'));
-        pipeline.coalesceStream.on('id3Frame', function (id3Frame) {
-          id3Frame.dispatchType = pipeline.metadataStream.dispatchType;
-          self.trigger('id3Frame', id3Frame);
-        });
-        pipeline.coalesceStream.on('caption', this.trigger.bind(this, 'caption')); // Let the consumer know we have finished flushing the entire pipeline
-
-        pipeline.coalesceStream.on('done', this.trigger.bind(this, 'done'));
-        addPipelineLogRetriggers(this, pipeline);
-      }; // hook up the segment streams once track metadata is delivered
-
-      this.setBaseMediaDecodeTime = function (baseMediaDecodeTime) {
-        var pipeline = this.transmuxPipeline_;
-        if (!options.keepOriginalTimestamps) {
-          this.baseMediaDecodeTime = baseMediaDecodeTime;
-        }
-        if (audioTrack) {
-          audioTrack.timelineStartInfo.dts = undefined;
-          audioTrack.timelineStartInfo.pts = undefined;
-          trackDecodeInfo.clearDtsInfo(audioTrack);
-          if (pipeline.audioTimestampRolloverStream) {
-            pipeline.audioTimestampRolloverStream.discontinuity();
-          }
-        }
-        if (videoTrack) {
-          if (pipeline.videoSegmentStream) {
-            pipeline.videoSegmentStream.gopCache_ = [];
-          }
-          videoTrack.timelineStartInfo.dts = undefined;
-          videoTrack.timelineStartInfo.pts = undefined;
-          trackDecodeInfo.clearDtsInfo(videoTrack);
-          pipeline.captionStream.reset();
-        }
-        if (pipeline.timestampRolloverStream) {
-          pipeline.timestampRolloverStream.discontinuity();
-        }
-      };
-      this.setAudioAppendStart = function (timestamp) {
-        if (audioTrack) {
-          this.transmuxPipeline_.audioSegmentStream.setAudioAppendStart(timestamp);
-        }
-      };
-      this.setRemux = function (val) {
-        var pipeline = this.transmuxPipeline_;
-        options.remux = val;
-        if (pipeline && pipeline.coalesceStream) {
-          pipeline.coalesceStream.setRemux(val);
-        }
-      };
-      this.alignGopsWith = function (gopsToAlignWith) {
-        if (videoTrack && this.transmuxPipeline_.videoSegmentStream) {
-          this.transmuxPipeline_.videoSegmentStream.alignGopsWith(gopsToAlignWith);
-        }
-      };
-      this.getLogTrigger_ = function (key) {
-        var self = this;
-        return function (event) {
-          event.stream = key;
-          self.trigger('log', event);
-        };
-      }; // feed incoming data to the front of the parsing pipeline
-
-      this.push = function (data) {
-        if (hasFlushed) {
-          var isAac = isLikelyAacData(data);
-          if (isAac && this.transmuxPipeline_.type !== 'aac') {
-            this.setupAacPipeline();
-          } else if (!isAac && this.transmuxPipeline_.type !== 'ts') {
-            this.setupTsPipeline();
-          }
-          hasFlushed = false;
-        }
-        this.transmuxPipeline_.headOfPipeline.push(data);
-      }; // flush any buffered data
-
-      this.flush = function () {
-        hasFlushed = true; // Start at the top of the pipeline and flush all pending work
-
-        this.transmuxPipeline_.headOfPipeline.flush();
-      };
-      this.endTimeline = function () {
-        this.transmuxPipeline_.headOfPipeline.endTimeline();
-      };
-      this.reset = function () {
-        if (this.transmuxPipeline_.headOfPipeline) {
-          this.transmuxPipeline_.headOfPipeline.reset();
-        }
-      }; // Caption data has to be reset when seeking outside buffered range
-
-      this.resetCaptions = function () {
-        if (this.transmuxPipeline_.captionStream) {
-          this.transmuxPipeline_.captionStream.reset();
-        }
-      };
-    };
-    Transmuxer.prototype = new Stream();
-    var transmuxer = {
-      Transmuxer: Transmuxer,
-      VideoSegmentStream: VideoSegmentStream,
-      AudioSegmentStream: AudioSegmentStream,
-      AUDIO_PROPERTIES: AUDIO_PROPERTIES,
-      VIDEO_PROPERTIES: VIDEO_PROPERTIES,
-      // exported for testing
-      generateSegmentTimingInfo: generateSegmentTimingInfo
-    };
-    /**
-     * mux.js
-     *
-     * Copyright (c) Brightcove
-     * Licensed Apache-2.0 https://github.com/videojs/mux.js/blob/master/LICENSE
-     */
-
-    var toUnsigned$3 = function (value) {
-      return value >>> 0;
-    };
-    var toHexString$1 = function (value) {
-      return ('00' + value.toString(16)).slice(-2);
-    };
-    var bin = {
-      toUnsigned: toUnsigned$3,
-      toHexString: toHexString$1
-    };
-    var parseType$3 = function (buffer) {
-      var result = '';
-      result += String.fromCharCode(buffer[0]);
-      result += String.fromCharCode(buffer[1]);
-      result += String.fromCharCode(buffer[2]);
-      result += String.fromCharCode(buffer[3]);
-      return result;
-    };
-    var parseType_1 = parseType$3;
-    var toUnsigned$2 = bin.toUnsigned;
-    var parseType$2 = parseType_1;
-    var findBox$2 = function (data, path) {
-      var results = [],
-        i,
-        size,
-        type,
-        end,
-        subresults;
-      if (!path.length) {
-        // short-circuit the search for empty paths
-        return null;
-      }
-      for (i = 0; i < data.byteLength;) {
-        size = toUnsigned$2(data[i] << 24 | data[i + 1] << 16 | data[i + 2] << 8 | data[i + 3]);
-        type = parseType$2(data.subarray(i + 4, i + 8));
-        end = size > 1 ? i + size : data.byteLength;
-        if (type === path[0]) {
-          if (path.length === 1) {
-            // this is the end of the path and we've found the box we were
-            // looking for
-            results.push(data.subarray(i + 8, end));
-          } else {
-            // recursively search for the next box along the path
-            subresults = findBox$2(data.subarray(i + 8, end), path.slice(1));
-            if (subresults.length) {
-              results = results.concat(subresults);
-            }
-          }
-        }
-        i = end;
-      } // we've finished searching all of data
-
-      return results;
-    };
-    var findBox_1 = findBox$2;
-    var toUnsigned$1 = bin.toUnsigned;
-    var getUint64$2 = numbers.getUint64;
-    var tfdt = function (data) {
-      var result = {
-        version: data[0],
-        flags: new Uint8Array(data.subarray(1, 4))
-      };
-      if (result.version === 1) {
-        result.baseMediaDecodeTime = getUint64$2(data.subarray(4));
-      } else {
-        result.baseMediaDecodeTime = toUnsigned$1(data[4] << 24 | data[5] << 16 | data[6] << 8 | data[7]);
-      }
-      return result;
-    };
-    var parseTfdt$2 = tfdt;
-    var parseSampleFlags$1 = function (flags) {
-      return {
-        isLeading: (flags[0] & 0x0c) >>> 2,
-        dependsOn: flags[0] & 0x03,
-        isDependedOn: (flags[1] & 0xc0) >>> 6,
-        hasRedundancy: (flags[1] & 0x30) >>> 4,
-        paddingValue: (flags[1] & 0x0e) >>> 1,
-        isNonSyncSample: flags[1] & 0x01,
-        degradationPriority: flags[2] << 8 | flags[3]
-      };
-    };
-    var parseSampleFlags_1 = parseSampleFlags$1;
-    var parseSampleFlags = parseSampleFlags_1;
-    var trun = function (data) {
-      var result = {
-          version: data[0],
-          flags: new Uint8Array(data.subarray(1, 4)),
-          samples: []
-        },
-        view = new DataView(data.buffer, data.byteOffset, data.byteLength),
-        // Flag interpretation
-        dataOffsetPresent = result.flags[2] & 0x01,
-        // compare with 2nd byte of 0x1
-        firstSampleFlagsPresent = result.flags[2] & 0x04,
-        // compare with 2nd byte of 0x4
-        sampleDurationPresent = result.flags[1] & 0x01,
-        // compare with 2nd byte of 0x100
-        sampleSizePresent = result.flags[1] & 0x02,
-        // compare with 2nd byte of 0x200
-        sampleFlagsPresent = result.flags[1] & 0x04,
-        // compare with 2nd byte of 0x400
-        sampleCompositionTimeOffsetPresent = result.flags[1] & 0x08,
-        // compare with 2nd byte of 0x800
-        sampleCount = view.getUint32(4),
-        offset = 8,
-        sample;
-      if (dataOffsetPresent) {
-        // 32 bit signed integer
-        result.dataOffset = view.getInt32(offset);
-        offset += 4;
-      } // Overrides the flags for the first sample only. The order of
-      // optional values will be: duration, size, compositionTimeOffset
-
-      if (firstSampleFlagsPresent && sampleCount) {
-        sample = {
-          flags: parseSampleFlags(data.subarray(offset, offset + 4))
-        };
-        offset += 4;
-        if (sampleDurationPresent) {
-          sample.duration = view.getUint32(offset);
-          offset += 4;
-        }
-        if (sampleSizePresent) {
-          sample.size = view.getUint32(offset);
-          offset += 4;
-        }
-        if (sampleCompositionTimeOffsetPresent) {
-          if (result.version === 1) {
-            sample.compositionTimeOffset = view.getInt32(offset);
-          } else {
-            sample.compositionTimeOffset = view.getUint32(offset);
-          }
-          offset += 4;
-        }
-        result.samples.push(sample);
-        sampleCount--;
-      }
-      while (sampleCount--) {
-        sample = {};
-        if (sampleDurationPresent) {
-          sample.duration = view.getUint32(offset);
-          offset += 4;
-        }
-        if (sampleSizePresent) {
-          sample.size = view.getUint32(offset);
-          offset += 4;
-        }
-        if (sampleFlagsPresent) {
-          sample.flags = parseSampleFlags(data.subarray(offset, offset + 4));
-          offset += 4;
-        }
-        if (sampleCompositionTimeOffsetPresent) {
-          if (result.version === 1) {
-            sample.compositionTimeOffset = view.getInt32(offset);
-          } else {
-            sample.compositionTimeOffset = view.getUint32(offset);
-          }
-          offset += 4;
-        }
-        result.samples.push(sample);
-      }
-      return result;
-    };
-    var parseTrun$2 = trun;
-    var tfhd = function (data) {
-      var view = new DataView(data.buffer, data.byteOffset, data.byteLength),
-        result = {
-          version: data[0],
-          flags: new Uint8Array(data.subarray(1, 4)),
-          trackId: view.getUint32(4)
-        },
-        baseDataOffsetPresent = result.flags[2] & 0x01,
-        sampleDescriptionIndexPresent = result.flags[2] & 0x02,
-        defaultSampleDurationPresent = result.flags[2] & 0x08,
-        defaultSampleSizePresent = result.flags[2] & 0x10,
-        defaultSampleFlagsPresent = result.flags[2] & 0x20,
-        durationIsEmpty = result.flags[0] & 0x010000,
-        defaultBaseIsMoof = result.flags[0] & 0x020000,
-        i;
-      i = 8;
-      if (baseDataOffsetPresent) {
-        i += 4; // truncate top 4 bytes
-        // FIXME: should we read the full 64 bits?
-
-        result.baseDataOffset = view.getUint32(12);
-        i += 4;
-      }
-      if (sampleDescriptionIndexPresent) {
-        result.sampleDescriptionIndex = view.getUint32(i);
-        i += 4;
-      }
-      if (defaultSampleDurationPresent) {
-        result.defaultSampleDuration = view.getUint32(i);
-        i += 4;
-      }
-      if (defaultSampleSizePresent) {
-        result.defaultSampleSize = view.getUint32(i);
-        i += 4;
-      }
-      if (defaultSampleFlagsPresent) {
-        result.defaultSampleFlags = view.getUint32(i);
-      }
-      if (durationIsEmpty) {
-        result.durationIsEmpty = true;
-      }
-      if (!baseDataOffsetPresent && defaultBaseIsMoof) {
-        result.baseDataOffsetIsMoof = true;
-      }
-      return result;
-    };
-    var parseTfhd$2 = tfhd;
-    var win;
-    if (typeof window !== "undefined") {
-      win = window;
-    } else if (typeof commonjsGlobal !== "undefined") {
-      win = commonjsGlobal;
-    } else if (typeof self !== "undefined") {
-      win = self;
-    } else {
-      win = {};
-    }
-    var window_1 = win;
-    /**
-     * mux.js
-     *
-     * Copyright (c) Brightcove
-     * Licensed Apache-2.0 https://github.com/videojs/mux.js/blob/master/LICENSE
-     *
-     * Reads in-band CEA-708 captions out of FMP4 segments.
-     * @see https://en.wikipedia.org/wiki/CEA-708
-     */
-
-    var discardEmulationPreventionBytes = captionPacketParser.discardEmulationPreventionBytes;
-    var CaptionStream = captionStream.CaptionStream;
-    var findBox$1 = findBox_1;
-    var parseTfdt$1 = parseTfdt$2;
-    var parseTrun$1 = parseTrun$2;
-    var parseTfhd$1 = parseTfhd$2;
-    var window$2 = window_1;
-    /**
-      * Maps an offset in the mdat to a sample based on the the size of the samples.
-      * Assumes that `parseSamples` has been called first.
-      *
-      * @param {Number} offset - The offset into the mdat
-      * @param {Object[]} samples - An array of samples, parsed using `parseSamples`
-      * @return {?Object} The matching sample, or null if no match was found.
-      *
-      * @see ISO-BMFF-12/2015, Section 8.8.8
-     **/
-
-    var mapToSample = function (offset, samples) {
-      var approximateOffset = offset;
-      for (var i = 0; i < samples.length; i++) {
-        var sample = samples[i];
-        if (approximateOffset < sample.size) {
-          return sample;
-        }
-        approximateOffset -= sample.size;
-      }
-      return null;
-    };
-    /**
-      * Finds SEI nal units contained in a Media Data Box.
-      * Assumes that `parseSamples` has been called first.
-      *
-      * @param {Uint8Array} avcStream - The bytes of the mdat
-      * @param {Object[]} samples - The samples parsed out by `parseSamples`
-      * @param {Number} trackId - The trackId of this video track
-      * @return {Object[]} seiNals - the parsed SEI NALUs found.
-      *   The contents of the seiNal should match what is expected by
-      *   CaptionStream.push (nalUnitType, size, data, escapedRBSP, pts, dts)
-      *
-      * @see ISO-BMFF-12/2015, Section 8.1.1
-      * @see Rec. ITU-T H.264, 7.3.2.3.1
-     **/
-
-    var findSeiNals = function (avcStream, samples, trackId) {
-      var avcView = new DataView(avcStream.buffer, avcStream.byteOffset, avcStream.byteLength),
-        result = {
-          logs: [],
-          seiNals: []
-        },
-        seiNal,
-        i,
-        length,
-        lastMatchedSample;
-      for (i = 0; i + 4 < avcStream.length; i += length) {
-        length = avcView.getUint32(i);
-        i += 4; // Bail if this doesn't appear to be an H264 stream
-
-        if (length <= 0) {
-          continue;
-        }
-        switch (avcStream[i] & 0x1F) {
-          case 0x06:
-            var data = avcStream.subarray(i + 1, i + 1 + length);
-            var matchingSample = mapToSample(i, samples);
-            seiNal = {
-              nalUnitType: 'sei_rbsp',
-              size: length,
-              data: data,
-              escapedRBSP: discardEmulationPreventionBytes(data),
-              trackId: trackId
-            };
-            if (matchingSample) {
-              seiNal.pts = matchingSample.pts;
-              seiNal.dts = matchingSample.dts;
-              lastMatchedSample = matchingSample;
-            } else if (lastMatchedSample) {
-              // If a matching sample cannot be found, use the last
-              // sample's values as they should be as close as possible
-              seiNal.pts = lastMatchedSample.pts;
-              seiNal.dts = lastMatchedSample.dts;
-            } else {
-              result.logs.push({
-                level: 'warn',
-                message: 'We\'ve encountered a nal unit without data at ' + i + ' for trackId ' + trackId + '. See mux.js#223.'
-              });
-              break;
-            }
-            result.seiNals.push(seiNal);
-            break;
-        }
-      }
-      return result;
-    };
-    /**
-      * Parses sample information out of Track Run Boxes and calculates
-      * the absolute presentation and decode timestamps of each sample.
-      *
-      * @param {Array<Uint8Array>} truns - The Trun Run boxes to be parsed
-      * @param {Number|BigInt} baseMediaDecodeTime - base media decode time from tfdt
-          @see ISO-BMFF-12/2015, Section 8.8.12
-      * @param {Object} tfhd - The parsed Track Fragment Header
-      *   @see inspect.parseTfhd
-      * @return {Object[]} the parsed samples
-      *
-      * @see ISO-BMFF-12/2015, Section 8.8.8
-     **/
-
-    var parseSamples = function (truns, baseMediaDecodeTime, tfhd) {
-      var currentDts = baseMediaDecodeTime;
-      var defaultSampleDuration = tfhd.defaultSampleDuration || 0;
-      var defaultSampleSize = tfhd.defaultSampleSize || 0;
-      var trackId = tfhd.trackId;
-      var allSamples = [];
-      truns.forEach(function (trun) {
-        // Note: We currently do not parse the sample table as well
-        // as the trun. It's possible some sources will require this.
-        // moov > trak > mdia > minf > stbl
-        var trackRun = parseTrun$1(trun);
-        var samples = trackRun.samples;
-        samples.forEach(function (sample) {
-          if (sample.duration === undefined) {
-            sample.duration = defaultSampleDuration;
-          }
-          if (sample.size === undefined) {
-            sample.size = defaultSampleSize;
-          }
-          sample.trackId = trackId;
-          sample.dts = currentDts;
-          if (sample.compositionTimeOffset === undefined) {
-            sample.compositionTimeOffset = 0;
-          }
-          if (typeof currentDts === 'bigint') {
-            sample.pts = currentDts + window$2.BigInt(sample.compositionTimeOffset);
-            currentDts += window$2.BigInt(sample.duration);
-          } else {
-            sample.pts = currentDts + sample.compositionTimeOffset;
-            currentDts += sample.duration;
-          }
-        });
-        allSamples = allSamples.concat(samples);
-      });
-      return allSamples;
-    };
-    /**
-      * Parses out caption nals from an FMP4 segment's video tracks.
-      *
-      * @param {Uint8Array} segment - The bytes of a single segment
-      * @param {Number} videoTrackId - The trackId of a video track in the segment
-      * @return {Object.<Number, Object[]>} A mapping of video trackId to
-      *   a list of seiNals found in that track
-     **/
-
-    var parseCaptionNals = function (segment, videoTrackId) {
-      // To get the samples
-      var trafs = findBox$1(segment, ['moof', 'traf']); // To get SEI NAL units
-
-      var mdats = findBox$1(segment, ['mdat']);
-      var captionNals = {};
-      var mdatTrafPairs = []; // Pair up each traf with a mdat as moofs and mdats are in pairs
-
-      mdats.forEach(function (mdat, index) {
-        var matchingTraf = trafs[index];
-        mdatTrafPairs.push({
-          mdat: mdat,
-          traf: matchingTraf
-        });
-      });
-      mdatTrafPairs.forEach(function (pair) {
-        var mdat = pair.mdat;
-        var traf = pair.traf;
-        var tfhd = findBox$1(traf, ['tfhd']); // Exactly 1 tfhd per traf
-
-        var headerInfo = parseTfhd$1(tfhd[0]);
-        var trackId = headerInfo.trackId;
-        var tfdt = findBox$1(traf, ['tfdt']); // Either 0 or 1 tfdt per traf
-
-        var baseMediaDecodeTime = tfdt.length > 0 ? parseTfdt$1(tfdt[0]).baseMediaDecodeTime : 0;
-        var truns = findBox$1(traf, ['trun']);
-        var samples;
-        var result; // Only parse video data for the chosen video track
-
-        if (videoTrackId === trackId && truns.length > 0) {
-          samples = parseSamples(truns, baseMediaDecodeTime, headerInfo);
-          result = findSeiNals(mdat, samples, trackId);
-          if (!captionNals[trackId]) {
-            captionNals[trackId] = {
-              seiNals: [],
-              logs: []
-            };
-          }
-          captionNals[trackId].seiNals = captionNals[trackId].seiNals.concat(result.seiNals);
-          captionNals[trackId].logs = captionNals[trackId].logs.concat(result.logs);
-        }
-      });
-      return captionNals;
-    };
-    /**
-      * Parses out inband captions from an MP4 container and returns
-      * caption objects that can be used by WebVTT and the TextTrack API.
-      * @see https://developer.mozilla.org/en-US/docs/Web/API/VTTCue
-      * @see https://developer.mozilla.org/en-US/docs/Web/API/TextTrack
-      * Assumes that `probe.getVideoTrackIds` and `probe.timescale` have been called first
-      *
-      * @param {Uint8Array} segment - The fmp4 segment containing embedded captions
-      * @param {Number} trackId - The id of the video track to parse
-      * @param {Number} timescale - The timescale for the video track from the init segment
-      *
-      * @return {?Object[]} parsedCaptions - A list of captions or null if no video tracks
-      * @return {Number} parsedCaptions[].startTime - The time to show the caption in seconds
-      * @return {Number} parsedCaptions[].endTime - The time to stop showing the caption in seconds
-      * @return {Object[]} parsedCaptions[].content - A list of individual caption segments
-      * @return {String} parsedCaptions[].content.text - The visible content of the caption segment
-      * @return {Number} parsedCaptions[].content.line - The line height from 1-15 for positioning of the caption segment
-      * @return {Number} parsedCaptions[].content.position - The column indent percentage for cue positioning from 10-80
-     **/
-
-    var parseEmbeddedCaptions = function (segment, trackId, timescale) {
-      var captionNals; // the ISO-BMFF spec says that trackId can't be zero, but there's some broken content out there
-
-      if (trackId === null) {
-        return null;
-      }
-      captionNals = parseCaptionNals(segment, trackId);
-      var trackNals = captionNals[trackId] || {};
-      return {
-        seiNals: trackNals.seiNals,
-        logs: trackNals.logs,
-        timescale: timescale
-      };
-    };
-    /**
-      * Converts SEI NALUs into captions that can be used by video.js
-     **/
-
-    var CaptionParser = function () {
-      var isInitialized = false;
-      var captionStream; // Stores segments seen before trackId and timescale are set
-
-      var segmentCache; // Stores video track ID of the track being parsed
-
-      var trackId; // Stores the timescale of the track being parsed
-
-      var timescale; // Stores captions parsed so far
-
-      var parsedCaptions; // Stores whether we are receiving partial data or not
-
-      var parsingPartial;
-      /**
-        * A method to indicate whether a CaptionParser has been initalized
-        * @returns {Boolean}
-       **/
-
-      this.isInitialized = function () {
-        return isInitialized;
-      };
-      /**
-        * Initializes the underlying CaptionStream, SEI NAL parsing
-        * and management, and caption collection
-       **/
-
-      this.init = function (options) {
-        captionStream = new CaptionStream();
-        isInitialized = true;
-        parsingPartial = options ? options.isPartial : false; // Collect dispatched captions
-
-        captionStream.on('data', function (event) {
-          // Convert to seconds in the source's timescale
-          event.startTime = event.startPts / timescale;
-          event.endTime = event.endPts / timescale;
-          parsedCaptions.captions.push(event);
-          parsedCaptions.captionStreams[event.stream] = true;
-        });
-        captionStream.on('log', function (log) {
-          parsedCaptions.logs.push(log);
-        });
-      };
-      /**
-        * Determines if a new video track will be selected
-        * or if the timescale changed
-        * @return {Boolean}
-       **/
-
-      this.isNewInit = function (videoTrackIds, timescales) {
-        if (videoTrackIds && videoTrackIds.length === 0 || timescales && typeof timescales === 'object' && Object.keys(timescales).length === 0) {
-          return false;
-        }
-        return trackId !== videoTrackIds[0] || timescale !== timescales[trackId];
-      };
-      /**
-        * Parses out SEI captions and interacts with underlying
-        * CaptionStream to return dispatched captions
-        *
-        * @param {Uint8Array} segment - The fmp4 segment containing embedded captions
-        * @param {Number[]} videoTrackIds - A list of video tracks found in the init segment
-        * @param {Object.<Number, Number>} timescales - The timescales found in the init segment
-        * @see parseEmbeddedCaptions
-        * @see m2ts/caption-stream.js
-       **/
-
-      this.parse = function (segment, videoTrackIds, timescales) {
-        var parsedData;
-        if (!this.isInitialized()) {
-          return null; // This is not likely to be a video segment
-        } else if (!videoTrackIds || !timescales) {
-          return null;
-        } else if (this.isNewInit(videoTrackIds, timescales)) {
-          // Use the first video track only as there is no
-          // mechanism to switch to other video tracks
-          trackId = videoTrackIds[0];
-          timescale = timescales[trackId]; // If an init segment has not been seen yet, hold onto segment
-          // data until we have one.
-          // the ISO-BMFF spec says that trackId can't be zero, but there's some broken content out there
-        } else if (trackId === null || !timescale) {
-          segmentCache.push(segment);
-          return null;
-        } // Now that a timescale and trackId is set, parse cached segments
-
-        while (segmentCache.length > 0) {
-          var cachedSegment = segmentCache.shift();
-          this.parse(cachedSegment, videoTrackIds, timescales);
-        }
-        parsedData = parseEmbeddedCaptions(segment, trackId, timescale);
-        if (parsedData && parsedData.logs) {
-          parsedCaptions.logs = parsedCaptions.logs.concat(parsedData.logs);
-        }
-        if (parsedData === null || !parsedData.seiNals) {
-          if (parsedCaptions.logs.length) {
-            return {
-              logs: parsedCaptions.logs,
-              captions: [],
-              captionStreams: []
-            };
-          }
-          return null;
-        }
-        this.pushNals(parsedData.seiNals); // Force the parsed captions to be dispatched
-
-        this.flushStream();
-        return parsedCaptions;
-      };
-      /**
-        * Pushes SEI NALUs onto CaptionStream
-        * @param {Object[]} nals - A list of SEI nals parsed using `parseCaptionNals`
-        * Assumes that `parseCaptionNals` has been called first
-        * @see m2ts/caption-stream.js
-        **/
-
-      this.pushNals = function (nals) {
-        if (!this.isInitialized() || !nals || nals.length === 0) {
-          return null;
-        }
-        nals.forEach(function (nal) {
-          captionStream.push(nal);
-        });
-      };
-      /**
-        * Flushes underlying CaptionStream to dispatch processed, displayable captions
-        * @see m2ts/caption-stream.js
-       **/
-
-      this.flushStream = function () {
-        if (!this.isInitialized()) {
-          return null;
-        }
-        if (!parsingPartial) {
-          captionStream.flush();
-        } else {
-          captionStream.partialFlush();
-        }
-      };
-      /**
-        * Reset caption buckets for new data
-       **/
-
-      this.clearParsedCaptions = function () {
-        parsedCaptions.captions = [];
-        parsedCaptions.captionStreams = {};
-        parsedCaptions.logs = [];
-      };
-      /**
-        * Resets underlying CaptionStream
-        * @see m2ts/caption-stream.js
-       **/
-
-      this.resetCaptionStream = function () {
-        if (!this.isInitialized()) {
-          return null;
-        }
-        captionStream.reset();
-      };
-      /**
-        * Convenience method to clear all captions flushed from the
-        * CaptionStream and still being parsed
-        * @see m2ts/caption-stream.js
-       **/
-
-      this.clearAllCaptions = function () {
-        this.clearParsedCaptions();
-        this.resetCaptionStream();
-      };
-      /**
-        * Reset caption parser
-       **/
-
-      this.reset = function () {
-        segmentCache = [];
-        trackId = null;
-        timescale = null;
-        if (!parsedCaptions) {
-          parsedCaptions = {
-            captions: [],
-            // CC1, CC2, CC3, CC4
-            captionStreams: {},
-            logs: []
-          };
-        } else {
-          this.clearParsedCaptions();
-        }
-        this.resetCaptionStream();
-      };
-      this.reset();
-    };
-    var captionParser = CaptionParser;
-    /**
-     * Returns the first string in the data array ending with a null char '\0'
-     * @param {UInt8} data 
-     * @returns the string with the null char
-     */
-
-    var uint8ToCString$1 = function (data) {
-      var index = 0;
-      var curChar = String.fromCharCode(data[index]);
-      var retString = '';
-      while (curChar !== '\0') {
-        retString += curChar;
-        index++;
-        curChar = String.fromCharCode(data[index]);
-      } // Add nullChar
-
-      retString += curChar;
-      return retString;
-    };
-    var string = {
-      uint8ToCString: uint8ToCString$1
-    };
-    var uint8ToCString = string.uint8ToCString;
-    var getUint64$1 = numbers.getUint64;
-    /**
-     * Based on: ISO/IEC 23009 Section: 5.10.3.3
-     * References:
-     * https://dashif-documents.azurewebsites.net/Events/master/event.html#emsg-format
-     * https://aomediacodec.github.io/id3-emsg/
-     * 
-     * Takes emsg box data as a uint8 array and returns a emsg box object
-     * @param {UInt8Array} boxData data from emsg box
-     * @returns A parsed emsg box object
-     */
-
-    var parseEmsgBox = function (boxData) {
-      // version + flags
-      var offset = 4;
-      var version = boxData[0];
-      var scheme_id_uri, value, timescale, presentation_time, presentation_time_delta, event_duration, id, message_data;
-      if (version === 0) {
-        scheme_id_uri = uint8ToCString(boxData.subarray(offset));
-        offset += scheme_id_uri.length;
-        value = uint8ToCString(boxData.subarray(offset));
-        offset += value.length;
-        var dv = new DataView(boxData.buffer);
-        timescale = dv.getUint32(offset);
-        offset += 4;
-        presentation_time_delta = dv.getUint32(offset);
-        offset += 4;
-        event_duration = dv.getUint32(offset);
-        offset += 4;
-        id = dv.getUint32(offset);
-        offset += 4;
-      } else if (version === 1) {
-        var dv = new DataView(boxData.buffer);
-        timescale = dv.getUint32(offset);
-        offset += 4;
-        presentation_time = getUint64$1(boxData.subarray(offset));
-        offset += 8;
-        event_duration = dv.getUint32(offset);
-        offset += 4;
-        id = dv.getUint32(offset);
-        offset += 4;
-        scheme_id_uri = uint8ToCString(boxData.subarray(offset));
-        offset += scheme_id_uri.length;
-        value = uint8ToCString(boxData.subarray(offset));
-        offset += value.length;
-      }
-      message_data = new Uint8Array(boxData.subarray(offset, boxData.byteLength));
-      var emsgBox = {
-        scheme_id_uri,
-        value,
-        // if timescale is undefined or 0 set to 1 
-        timescale: timescale ? timescale : 1,
-        presentation_time,
-        presentation_time_delta,
-        event_duration,
-        id,
-        message_data
-      };
-      return isValidEmsgBox(version, emsgBox) ? emsgBox : undefined;
-    };
-    /**
-     * Scales a presentation time or time delta with an offset with a provided timescale
-     * @param {number} presentationTime 
-     * @param {number} timescale 
-     * @param {number} timeDelta 
-     * @param {number} offset 
-     * @returns the scaled time as a number
-     */
-
-    var scaleTime = function (presentationTime, timescale, timeDelta, offset) {
-      return presentationTime || presentationTime === 0 ? presentationTime / timescale : offset + timeDelta / timescale;
-    };
-    /**
-     * Checks the emsg box data for validity based on the version
-     * @param {number} version of the emsg box to validate
-     * @param {Object} emsg the emsg data to validate
-     * @returns if the box is valid as a boolean
-     */
-
-    var isValidEmsgBox = function (version, emsg) {
-      var hasScheme = emsg.scheme_id_uri !== '\0';
-      var isValidV0Box = version === 0 && isDefined(emsg.presentation_time_delta) && hasScheme;
-      var isValidV1Box = version === 1 && isDefined(emsg.presentation_time) && hasScheme; // Only valid versions of emsg are 0 and 1
-
-      return !(version > 1) && isValidV0Box || isValidV1Box;
-    }; // Utility function to check if an object is defined
-
-    var isDefined = function (data) {
-      return data !== undefined || data !== null;
-    };
-    var emsg$1 = {
-      parseEmsgBox: parseEmsgBox,
-      scaleTime: scaleTime
-    };
-    /**
-     * mux.js
-     *
-     * Copyright (c) Brightcove
-     * Licensed Apache-2.0 https://github.com/videojs/mux.js/blob/master/LICENSE
-     *
-     * Utilities to detect basic properties and metadata about MP4s.
-     */
-
-    var toUnsigned = bin.toUnsigned;
-    var toHexString = bin.toHexString;
-    var findBox = findBox_1;
-    var parseType$1 = parseType_1;
-    var emsg = emsg$1;
-    var parseTfhd = parseTfhd$2;
-    var parseTrun = parseTrun$2;
-    var parseTfdt = parseTfdt$2;
-    var getUint64 = numbers.getUint64;
-    var timescale, startTime, compositionStartTime, getVideoTrackIds, getTracks, getTimescaleFromMediaHeader, getEmsgID3;
-    var window$1 = window_1;
-    var parseId3Frames = parseId3.parseId3Frames;
-    /**
-     * Parses an MP4 initialization segment and extracts the timescale
-     * values for any declared tracks. Timescale values indicate the
-     * number of clock ticks per second to assume for time-based values
-     * elsewhere in the MP4.
-     *
-     * To determine the start time of an MP4, you need two pieces of
-     * information: the timescale unit and the earliest base media decode
-     * time. Multiple timescales can be specified within an MP4 but the
-     * base media decode time is always expressed in the timescale from
-     * the media header box for the track:
-     * ```
-     * moov > trak > mdia > mdhd.timescale
-     * ```
-     * @param init {Uint8Array} the bytes of the init segment
-     * @return {object} a hash of track ids to timescale values or null if
-     * the init segment is malformed.
-     */
-
-    timescale = function (init) {
-      var result = {},
-        traks = findBox(init, ['moov', 'trak']); // mdhd timescale
-
-      return traks.reduce(function (result, trak) {
-        var tkhd, version, index, id, mdhd;
-        tkhd = findBox(trak, ['tkhd'])[0];
-        if (!tkhd) {
-          return null;
-        }
-        version = tkhd[0];
-        index = version === 0 ? 12 : 20;
-        id = toUnsigned(tkhd[index] << 24 | tkhd[index + 1] << 16 | tkhd[index + 2] << 8 | tkhd[index + 3]);
-        mdhd = findBox(trak, ['mdia', 'mdhd'])[0];
-        if (!mdhd) {
-          return null;
-        }
-        version = mdhd[0];
-        index = version === 0 ? 12 : 20;
-        result[id] = toUnsigned(mdhd[index] << 24 | mdhd[index + 1] << 16 | mdhd[index + 2] << 8 | mdhd[index + 3]);
-        return result;
-      }, result);
-    };
-    /**
-     * Determine the base media decode start time, in seconds, for an MP4
-     * fragment. If multiple fragments are specified, the earliest time is
-     * returned.
-     *
-     * The base media decode time can be parsed from track fragment
-     * metadata:
-     * ```
-     * moof > traf > tfdt.baseMediaDecodeTime
-     * ```
-     * It requires the timescale value from the mdhd to interpret.
-     *
-     * @param timescale {object} a hash of track ids to timescale values.
-     * @return {number} the earliest base media decode start time for the
-     * fragment, in seconds
-     */
-
-    startTime = function (timescale, fragment) {
-      var trafs; // we need info from two childrend of each track fragment box
-
-      trafs = findBox(fragment, ['moof', 'traf']); // determine the start times for each track
-
-      var lowestTime = trafs.reduce(function (acc, traf) {
-        var tfhd = findBox(traf, ['tfhd'])[0]; // get the track id from the tfhd
-
-        var id = toUnsigned(tfhd[4] << 24 | tfhd[5] << 16 | tfhd[6] << 8 | tfhd[7]); // assume a 90kHz clock if no timescale was specified
-
-        var scale = timescale[id] || 90e3; // get the base media decode time from the tfdt
-
-        var tfdt = findBox(traf, ['tfdt'])[0];
-        var dv = new DataView(tfdt.buffer, tfdt.byteOffset, tfdt.byteLength);
-        var baseTime; // version 1 is 64 bit
-
-        if (tfdt[0] === 1) {
-          baseTime = getUint64(tfdt.subarray(4, 12));
-        } else {
-          baseTime = dv.getUint32(4);
-        } // convert base time to seconds if it is a valid number.
-
-        let seconds;
-        if (typeof baseTime === 'bigint') {
-          seconds = baseTime / window$1.BigInt(scale);
-        } else if (typeof baseTime === 'number' && !isNaN(baseTime)) {
-          seconds = baseTime / scale;
-        }
-        if (seconds < Number.MAX_SAFE_INTEGER) {
-          seconds = Number(seconds);
-        }
-        if (seconds < acc) {
-          acc = seconds;
-        }
-        return acc;
-      }, Infinity);
-      return typeof lowestTime === 'bigint' || isFinite(lowestTime) ? lowestTime : 0;
-    };
-    /**
-     * Determine the composition start, in seconds, for an MP4
-     * fragment.
-     *
-     * The composition start time of a fragment can be calculated using the base
-     * media decode time, composition time offset, and timescale, as follows:
-     *
-     * compositionStartTime = (baseMediaDecodeTime + compositionTimeOffset) / timescale
-     *
-     * All of the aforementioned information is contained within a media fragment's
-     * `traf` box, except for timescale info, which comes from the initialization
-     * segment, so a track id (also contained within a `traf`) is also necessary to
-     * associate it with a timescale
-     *
-     *
-     * @param timescales {object} - a hash of track ids to timescale values.
-     * @param fragment {Unit8Array} - the bytes of a media segment
-     * @return {number} the composition start time for the fragment, in seconds
-     **/
-
-    compositionStartTime = function (timescales, fragment) {
-      var trafBoxes = findBox(fragment, ['moof', 'traf']);
-      var baseMediaDecodeTime = 0;
-      var compositionTimeOffset = 0;
-      var trackId;
-      if (trafBoxes && trafBoxes.length) {
-        // The spec states that track run samples contained within a `traf` box are contiguous, but
-        // it does not explicitly state whether the `traf` boxes themselves are contiguous.
-        // We will assume that they are, so we only need the first to calculate start time.
-        var tfhd = findBox(trafBoxes[0], ['tfhd'])[0];
-        var trun = findBox(trafBoxes[0], ['trun'])[0];
-        var tfdt = findBox(trafBoxes[0], ['tfdt'])[0];
-        if (tfhd) {
-          var parsedTfhd = parseTfhd(tfhd);
-          trackId = parsedTfhd.trackId;
-        }
-        if (tfdt) {
-          var parsedTfdt = parseTfdt(tfdt);
-          baseMediaDecodeTime = parsedTfdt.baseMediaDecodeTime;
-        }
-        if (trun) {
-          var parsedTrun = parseTrun(trun);
-          if (parsedTrun.samples && parsedTrun.samples.length) {
-            compositionTimeOffset = parsedTrun.samples[0].compositionTimeOffset || 0;
-          }
-        }
-      } // Get timescale for this specific track. Assume a 90kHz clock if no timescale was
-      // specified.
-
-      var timescale = timescales[trackId] || 90e3; // return the composition start time, in seconds
-
-      if (typeof baseMediaDecodeTime === 'bigint') {
-        compositionTimeOffset = window$1.BigInt(compositionTimeOffset);
-        timescale = window$1.BigInt(timescale);
-      }
-      var result = (baseMediaDecodeTime + compositionTimeOffset) / timescale;
-      if (typeof result === 'bigint' && result < Number.MAX_SAFE_INTEGER) {
-        result = Number(result);
-      }
-      return result;
-    };
-    /**
-      * Find the trackIds of the video tracks in this source.
-      * Found by parsing the Handler Reference and Track Header Boxes:
-      *   moov > trak > mdia > hdlr
-      *   moov > trak > tkhd
-      *
-      * @param {Uint8Array} init - The bytes of the init segment for this source
-      * @return {Number[]} A list of trackIds
-      *
-      * @see ISO-BMFF-12/2015, Section 8.4.3
-     **/
-
-    getVideoTrackIds = function (init) {
-      var traks = findBox(init, ['moov', 'trak']);
-      var videoTrackIds = [];
-      traks.forEach(function (trak) {
-        var hdlrs = findBox(trak, ['mdia', 'hdlr']);
-        var tkhds = findBox(trak, ['tkhd']);
-        hdlrs.forEach(function (hdlr, index) {
-          var handlerType = parseType$1(hdlr.subarray(8, 12));
-          var tkhd = tkhds[index];
-          var view;
-          var version;
-          var trackId;
-          if (handlerType === 'vide') {
-            view = new DataView(tkhd.buffer, tkhd.byteOffset, tkhd.byteLength);
-            version = view.getUint8(0);
-            trackId = version === 0 ? view.getUint32(12) : view.getUint32(20);
-            videoTrackIds.push(trackId);
-          }
-        });
-      });
-      return videoTrackIds;
-    };
-    getTimescaleFromMediaHeader = function (mdhd) {
-      // mdhd is a FullBox, meaning it will have its own version as the first byte
-      var version = mdhd[0];
-      var index = version === 0 ? 12 : 20;
-      return toUnsigned(mdhd[index] << 24 | mdhd[index + 1] << 16 | mdhd[index + 2] << 8 | mdhd[index + 3]);
-    };
-    /**
-     * Get all the video, audio, and hint tracks from a non fragmented
-     * mp4 segment
-     */
-
-    getTracks = function (init) {
-      var traks = findBox(init, ['moov', 'trak']);
-      var tracks = [];
-      traks.forEach(function (trak) {
-        var track = {};
-        var tkhd = findBox(trak, ['tkhd'])[0];
-        var view, tkhdVersion; // id
-
-        if (tkhd) {
-          view = new DataView(tkhd.buffer, tkhd.byteOffset, tkhd.byteLength);
-          tkhdVersion = view.getUint8(0);
-          track.id = tkhdVersion === 0 ? view.getUint32(12) : view.getUint32(20);
-        }
-        var hdlr = findBox(trak, ['mdia', 'hdlr'])[0]; // type
-
-        if (hdlr) {
-          var type = parseType$1(hdlr.subarray(8, 12));
-          if (type === 'vide') {
-            track.type = 'video';
-          } else if (type === 'soun') {
-            track.type = 'audio';
-          } else {
-            track.type = type;
-          }
-        } // codec
-
-        var stsd = findBox(trak, ['mdia', 'minf', 'stbl', 'stsd'])[0];
-        if (stsd) {
-          var sampleDescriptions = stsd.subarray(8); // gives the codec type string
-
-          track.codec = parseType$1(sampleDescriptions.subarray(4, 8));
-          var codecBox = findBox(sampleDescriptions, [track.codec])[0];
-          var codecConfig, codecConfigType;
-          if (codecBox) {
-            // https://tools.ietf.org/html/rfc6381#section-3.3
-            if (/^[asm]vc[1-9]$/i.test(track.codec)) {
-              // we don't need anything but the "config" parameter of the
-              // avc1 codecBox
-              codecConfig = codecBox.subarray(78);
-              codecConfigType = parseType$1(codecConfig.subarray(4, 8));
-              if (codecConfigType === 'avcC' && codecConfig.length > 11) {
-                track.codec += '.'; // left padded with zeroes for single digit hex
-                // profile idc
-
-                track.codec += toHexString(codecConfig[9]); // the byte containing the constraint_set flags
-
-                track.codec += toHexString(codecConfig[10]); // level idc
-
-                track.codec += toHexString(codecConfig[11]);
-              } else {
-                // TODO: show a warning that we couldn't parse the codec
-                // and are using the default
-                track.codec = 'avc1.4d400d';
-              }
-            } else if (/^mp4[a,v]$/i.test(track.codec)) {
-              // we do not need anything but the streamDescriptor of the mp4a codecBox
-              codecConfig = codecBox.subarray(28);
-              codecConfigType = parseType$1(codecConfig.subarray(4, 8));
-              if (codecConfigType === 'esds' && codecConfig.length > 20 && codecConfig[19] !== 0) {
-                track.codec += '.' + toHexString(codecConfig[19]); // this value is only a single digit
-
-                track.codec += '.' + toHexString(codecConfig[20] >>> 2 & 0x3f).replace(/^0/, '');
-              } else {
-                // TODO: show a warning that we couldn't parse the codec
-                // and are using the default
-                track.codec = 'mp4a.40.2';
-              }
-            } else {
-              // flac, opus, etc
-              track.codec = track.codec.toLowerCase();
-            }
-          }
-        }
-        var mdhd = findBox(trak, ['mdia', 'mdhd'])[0];
-        if (mdhd) {
-          track.timescale = getTimescaleFromMediaHeader(mdhd);
-        }
-        tracks.push(track);
-      });
-      return tracks;
-    };
-    /**
-     * Returns an array of emsg ID3 data from the provided segmentData.
-     * An offset can also be provided as the Latest Arrival Time to calculate 
-     * the Event Start Time of v0 EMSG boxes. 
-     * See: https://dashif-documents.azurewebsites.net/Events/master/event.html#Inband-event-timing
-     * 
-     * @param {Uint8Array} segmentData the segment byte array.
-     * @param {number} offset the segment start time or Latest Arrival Time, 
-     * @return {Object[]} an array of ID3 parsed from EMSG boxes
-     */
-
-    getEmsgID3 = function (segmentData, offset = 0) {
-      var emsgBoxes = findBox(segmentData, ['emsg']);
-      return emsgBoxes.map(data => {
-        var parsedBox = emsg.parseEmsgBox(new Uint8Array(data));
-        var parsedId3Frames = parseId3Frames(parsedBox.message_data);
-        return {
-          cueTime: emsg.scaleTime(parsedBox.presentation_time, parsedBox.timescale, parsedBox.presentation_time_delta, offset),
-          duration: emsg.scaleTime(parsedBox.event_duration, parsedBox.timescale),
-          frames: parsedId3Frames
-        };
-      });
-    };
-    var probe$2 = {
-      // export mp4 inspector's findBox and parseType for backwards compatibility
-      findBox: findBox,
-      parseType: parseType$1,
-      timescale: timescale,
-      startTime: startTime,
-      compositionStartTime: compositionStartTime,
-      videoTrackIds: getVideoTrackIds,
-      tracks: getTracks,
-      getTimescaleFromMediaHeader: getTimescaleFromMediaHeader,
-      getEmsgID3: getEmsgID3
-    };
-    /**
-     * mux.js
-     *
-     * Copyright (c) Brightcove
-     * Licensed Apache-2.0 https://github.com/videojs/mux.js/blob/master/LICENSE
-     *
-     * Utilities to detect basic properties and metadata about TS Segments.
-     */
-
-    var StreamTypes$1 = streamTypes;
-    var parsePid = function (packet) {
-      var pid = packet[1] & 0x1f;
-      pid <<= 8;
-      pid |= packet[2];
-      return pid;
-    };
-    var parsePayloadUnitStartIndicator = function (packet) {
-      return !!(packet[1] & 0x40);
-    };
-    var parseAdaptionField = function (packet) {
-      var offset = 0; // if an adaption field is present, its length is specified by the
-      // fifth byte of the TS packet header. The adaptation field is
-      // used to add stuffing to PES packets that don't fill a complete
-      // TS packet, and to specify some forms of timing and control data
-      // that we do not currently use.
-
-      if ((packet[3] & 0x30) >>> 4 > 0x01) {
-        offset += packet[4] + 1;
-      }
-      return offset;
-    };
-    var parseType = function (packet, pmtPid) {
-      var pid = parsePid(packet);
-      if (pid === 0) {
-        return 'pat';
-      } else if (pid === pmtPid) {
-        return 'pmt';
-      } else if (pmtPid) {
-        return 'pes';
-      }
-      return null;
-    };
-    var parsePat = function (packet) {
-      var pusi = parsePayloadUnitStartIndicator(packet);
-      var offset = 4 + parseAdaptionField(packet);
-      if (pusi) {
-        offset += packet[offset] + 1;
-      }
-      return (packet[offset + 10] & 0x1f) << 8 | packet[offset + 11];
-    };
-    var parsePmt = function (packet) {
-      var programMapTable = {};
-      var pusi = parsePayloadUnitStartIndicator(packet);
-      var payloadOffset = 4 + parseAdaptionField(packet);
-      if (pusi) {
-        payloadOffset += packet[payloadOffset] + 1;
-      } // PMTs can be sent ahead of the time when they should actually
-      // take effect. We don't believe this should ever be the case
-      // for HLS but we'll ignore "forward" PMT declarations if we see
-      // them. Future PMT declarations have the current_next_indicator
-      // set to zero.
-
-      if (!(packet[payloadOffset + 5] & 0x01)) {
-        return;
-      }
-      var sectionLength, tableEnd, programInfoLength; // the mapping table ends at the end of the current section
-
-      sectionLength = (packet[payloadOffset + 1] & 0x0f) << 8 | packet[payloadOffset + 2];
-      tableEnd = 3 + sectionLength - 4; // to determine where the table is, we have to figure out how
-      // long the program info descriptors are
-
-      programInfoLength = (packet[payloadOffset + 10] & 0x0f) << 8 | packet[payloadOffset + 11]; // advance the offset to the first entry in the mapping table
-
-      var offset = 12 + programInfoLength;
-      while (offset < tableEnd) {
-        var i = payloadOffset + offset; // add an entry that maps the elementary_pid to the stream_type
-
-        programMapTable[(packet[i + 1] & 0x1F) << 8 | packet[i + 2]] = packet[i]; // move to the next table entry
-        // skip past the elementary stream descriptors, if present
-
-        offset += ((packet[i + 3] & 0x0F) << 8 | packet[i + 4]) + 5;
-      }
-      return programMapTable;
-    };
-    var parsePesType = function (packet, programMapTable) {
-      var pid = parsePid(packet);
-      var type = programMapTable[pid];
-      switch (type) {
-        case StreamTypes$1.H264_STREAM_TYPE:
-          return 'video';
-        case StreamTypes$1.ADTS_STREAM_TYPE:
-          return 'audio';
-        case StreamTypes$1.METADATA_STREAM_TYPE:
-          return 'timed-metadata';
-        default:
-          return null;
-      }
-    };
-    var parsePesTime = function (packet) {
-      var pusi = parsePayloadUnitStartIndicator(packet);
-      if (!pusi) {
-        return null;
-      }
-      var offset = 4 + parseAdaptionField(packet);
-      if (offset >= packet.byteLength) {
-        // From the H 222.0 MPEG-TS spec
-        // "For transport stream packets carrying PES packets, stuffing is needed when there
-        //  is insufficient PES packet data to completely fill the transport stream packet
-        //  payload bytes. Stuffing is accomplished by defining an adaptation field longer than
-        //  the sum of the lengths of the data elements in it, so that the payload bytes
-        //  remaining after the adaptation field exactly accommodates the available PES packet
-        //  data."
-        //
-        // If the offset is >= the length of the packet, then the packet contains no data
-        // and instead is just adaption field stuffing bytes
-        return null;
-      }
-      var pes = null;
-      var ptsDtsFlags; // PES packets may be annotated with a PTS value, or a PTS value
-      // and a DTS value. Determine what combination of values is
-      // available to work with.
-
-      ptsDtsFlags = packet[offset + 7]; // PTS and DTS are normally stored as a 33-bit number.  Javascript
-      // performs all bitwise operations on 32-bit integers but javascript
-      // supports a much greater range (52-bits) of integer using standard
-      // mathematical operations.
-      // We construct a 31-bit value using bitwise operators over the 31
-      // most significant bits and then multiply by 4 (equal to a left-shift
-      // of 2) before we add the final 2 least significant bits of the
-      // timestamp (equal to an OR.)
-
-      if (ptsDtsFlags & 0xC0) {
-        pes = {}; // the PTS and DTS are not written out directly. For information
-        // on how they are encoded, see
-        // http://dvd.sourceforge.net/dvdinfo/pes-hdr.html
-
-        pes.pts = (packet[offset + 9] & 0x0E) << 27 | (packet[offset + 10] & 0xFF) << 20 | (packet[offset + 11] & 0xFE) << 12 | (packet[offset + 12] & 0xFF) << 5 | (packet[offset + 13] & 0xFE) >>> 3;
-        pes.pts *= 4; // Left shift by 2
-
-        pes.pts += (packet[offset + 13] & 0x06) >>> 1; // OR by the two LSBs
-
-        pes.dts = pes.pts;
-        if (ptsDtsFlags & 0x40) {
-          pes.dts = (packet[offset + 14] & 0x0E) << 27 | (packet[offset + 15] & 0xFF) << 20 | (packet[offset + 16] & 0xFE) << 12 | (packet[offset + 17] & 0xFF) << 5 | (packet[offset + 18] & 0xFE) >>> 3;
-          pes.dts *= 4; // Left shift by 2
-
-          pes.dts += (packet[offset + 18] & 0x06) >>> 1; // OR by the two LSBs
-        }
-      }
-
-      return pes;
-    };
-    var parseNalUnitType = function (type) {
-      switch (type) {
-        case 0x05:
-          return 'slice_layer_without_partitioning_rbsp_idr';
-        case 0x06:
-          return 'sei_rbsp';
-        case 0x07:
-          return 'seq_parameter_set_rbsp';
-        case 0x08:
-          return 'pic_parameter_set_rbsp';
-        case 0x09:
-          return 'access_unit_delimiter_rbsp';
-        default:
-          return null;
-      }
-    };
-    var videoPacketContainsKeyFrame = function (packet) {
-      var offset = 4 + parseAdaptionField(packet);
-      var frameBuffer = packet.subarray(offset);
-      var frameI = 0;
-      var frameSyncPoint = 0;
-      var foundKeyFrame = false;
-      var nalType; // advance the sync point to a NAL start, if necessary
-
-      for (; frameSyncPoint < frameBuffer.byteLength - 3; frameSyncPoint++) {
-        if (frameBuffer[frameSyncPoint + 2] === 1) {
-          // the sync point is properly aligned
-          frameI = frameSyncPoint + 5;
-          break;
-        }
-      }
-      while (frameI < frameBuffer.byteLength) {
-        // look at the current byte to determine if we've hit the end of
-        // a NAL unit boundary
-        switch (frameBuffer[frameI]) {
-          case 0:
-            // skip past non-sync sequences
-            if (frameBuffer[frameI - 1] !== 0) {
-              frameI += 2;
-              break;
-            } else if (frameBuffer[frameI - 2] !== 0) {
-              frameI++;
-              break;
-            }
-            if (frameSyncPoint + 3 !== frameI - 2) {
-              nalType = parseNalUnitType(frameBuffer[frameSyncPoint + 3] & 0x1f);
-              if (nalType === 'slice_layer_without_partitioning_rbsp_idr') {
-                foundKeyFrame = true;
-              }
-            } // drop trailing zeroes
-
-            do {
-              frameI++;
-            } while (frameBuffer[frameI] !== 1 && frameI < frameBuffer.length);
-            frameSyncPoint = frameI - 2;
-            frameI += 3;
-            break;
-          case 1:
-            // skip past non-sync sequences
-            if (frameBuffer[frameI - 1] !== 0 || frameBuffer[frameI - 2] !== 0) {
-              frameI += 3;
-              break;
-            }
-            nalType = parseNalUnitType(frameBuffer[frameSyncPoint + 3] & 0x1f);
-            if (nalType === 'slice_layer_without_partitioning_rbsp_idr') {
-              foundKeyFrame = true;
-            }
-            frameSyncPoint = frameI - 2;
-            frameI += 3;
-            break;
-          default:
-            // the current byte isn't a one or zero, so it cannot be part
-            // of a sync sequence
-            frameI += 3;
-            break;
-        }
-      }
-      frameBuffer = frameBuffer.subarray(frameSyncPoint);
-      frameI -= frameSyncPoint;
-      frameSyncPoint = 0; // parse the final nal
-
-      if (frameBuffer && frameBuffer.byteLength > 3) {
-        nalType = parseNalUnitType(frameBuffer[frameSyncPoint + 3] & 0x1f);
-        if (nalType === 'slice_layer_without_partitioning_rbsp_idr') {
-          foundKeyFrame = true;
-        }
-      }
-      return foundKeyFrame;
-    };
-    var probe$1 = {
-      parseType: parseType,
-      parsePat: parsePat,
-      parsePmt: parsePmt,
-      parsePayloadUnitStartIndicator: parsePayloadUnitStartIndicator,
-      parsePesType: parsePesType,
-      parsePesTime: parsePesTime,
-      videoPacketContainsKeyFrame: videoPacketContainsKeyFrame
-    };
-    /**
-     * mux.js
-     *
-     * Copyright (c) Brightcove
-     * Licensed Apache-2.0 https://github.com/videojs/mux.js/blob/master/LICENSE
-     *
-     * Parse mpeg2 transport stream packets to extract basic timing information
-     */
-
-    var StreamTypes = streamTypes;
-    var handleRollover = timestampRolloverStream.handleRollover;
-    var probe = {};
-    probe.ts = probe$1;
-    probe.aac = utils;
-    var ONE_SECOND_IN_TS = clock$2.ONE_SECOND_IN_TS;
-    var MP2T_PACKET_LENGTH = 188,
-      // bytes
-      SYNC_BYTE = 0x47;
-    /**
-     * walks through segment data looking for pat and pmt packets to parse out
-     * program map table information
-     */
-
-    var parsePsi_ = function (bytes, pmt) {
-      var startIndex = 0,
-        endIndex = MP2T_PACKET_LENGTH,
-        packet,
-        type;
-      while (endIndex < bytes.byteLength) {
-        // Look for a pair of start and end sync bytes in the data..
-        if (bytes[startIndex] === SYNC_BYTE && bytes[endIndex] === SYNC_BYTE) {
-          // We found a packet
-          packet = bytes.subarray(startIndex, endIndex);
-          type = probe.ts.parseType(packet, pmt.pid);
-          switch (type) {
-            case 'pat':
-              pmt.pid = probe.ts.parsePat(packet);
-              break;
-            case 'pmt':
-              var table = probe.ts.parsePmt(packet);
-              pmt.table = pmt.table || {};
-              Object.keys(table).forEach(function (key) {
-                pmt.table[key] = table[key];
-              });
-              break;
-          }
-          startIndex += MP2T_PACKET_LENGTH;
-          endIndex += MP2T_PACKET_LENGTH;
-          continue;
-        } // If we get here, we have somehow become de-synchronized and we need to step
-        // forward one byte at a time until we find a pair of sync bytes that denote
-        // a packet
-
-        startIndex++;
-        endIndex++;
-      }
-    };
-    /**
-     * walks through the segment data from the start and end to get timing information
-     * for the first and last audio pes packets
-     */
-
-    var parseAudioPes_ = function (bytes, pmt, result) {
-      var startIndex = 0,
-        endIndex = MP2T_PACKET_LENGTH,
-        packet,
-        type,
-        pesType,
-        pusi,
-        parsed;
-      var endLoop = false; // Start walking from start of segment to get first audio packet
-
-      while (endIndex <= bytes.byteLength) {
-        // Look for a pair of start and end sync bytes in the data..
-        if (bytes[startIndex] === SYNC_BYTE && (bytes[endIndex] === SYNC_BYTE || endIndex === bytes.byteLength)) {
-          // We found a packet
-          packet = bytes.subarray(startIndex, endIndex);
-          type = probe.ts.parseType(packet, pmt.pid);
-          switch (type) {
-            case 'pes':
-              pesType = probe.ts.parsePesType(packet, pmt.table);
-              pusi = probe.ts.parsePayloadUnitStartIndicator(packet);
-              if (pesType === 'audio' && pusi) {
-                parsed = probe.ts.parsePesTime(packet);
-                if (parsed) {
-                  parsed.type = 'audio';
-                  result.audio.push(parsed);
-                  endLoop = true;
-                }
-              }
-              break;
-          }
-          if (endLoop) {
-            break;
-          }
-          startIndex += MP2T_PACKET_LENGTH;
-          endIndex += MP2T_PACKET_LENGTH;
-          continue;
-        } // If we get here, we have somehow become de-synchronized and we need to step
-        // forward one byte at a time until we find a pair of sync bytes that denote
-        // a packet
-
-        startIndex++;
-        endIndex++;
-      } // Start walking from end of segment to get last audio packet
-
-      endIndex = bytes.byteLength;
-      startIndex = endIndex - MP2T_PACKET_LENGTH;
-      endLoop = false;
-      while (startIndex >= 0) {
-        // Look for a pair of start and end sync bytes in the data..
-        if (bytes[startIndex] === SYNC_BYTE && (bytes[endIndex] === SYNC_BYTE || endIndex === bytes.byteLength)) {
-          // We found a packet
-          packet = bytes.subarray(startIndex, endIndex);
-          type = probe.ts.parseType(packet, pmt.pid);
-          switch (type) {
-            case 'pes':
-              pesType = probe.ts.parsePesType(packet, pmt.table);
-              pusi = probe.ts.parsePayloadUnitStartIndicator(packet);
-              if (pesType === 'audio' && pusi) {
-                parsed = probe.ts.parsePesTime(packet);
-                if (parsed) {
-                  parsed.type = 'audio';
-                  result.audio.push(parsed);
-                  endLoop = true;
-                }
-              }
-              break;
-          }
-          if (endLoop) {
-            break;
-          }
-          startIndex -= MP2T_PACKET_LENGTH;
-          endIndex -= MP2T_PACKET_LENGTH;
-          continue;
-        } // If we get here, we have somehow become de-synchronized and we need to step
-        // forward one byte at a time until we find a pair of sync bytes that denote
-        // a packet
-
-        startIndex--;
-        endIndex--;
-      }
-    };
-    /**
-     * walks through the segment data from the start and end to get timing information
-     * for the first and last video pes packets as well as timing information for the first
-     * key frame.
-     */
-
-    var parseVideoPes_ = function (bytes, pmt, result) {
-      var startIndex = 0,
-        endIndex = MP2T_PACKET_LENGTH,
-        packet,
-        type,
-        pesType,
-        pusi,
-        parsed,
-        frame,
-        i,
-        pes;
-      var endLoop = false;
-      var currentFrame = {
-        data: [],
-        size: 0
-      }; // Start walking from start of segment to get first video packet
-
-      while (endIndex < bytes.byteLength) {
-        // Look for a pair of start and end sync bytes in the data..
-        if (bytes[startIndex] === SYNC_BYTE && bytes[endIndex] === SYNC_BYTE) {
-          // We found a packet
-          packet = bytes.subarray(startIndex, endIndex);
-          type = probe.ts.parseType(packet, pmt.pid);
-          switch (type) {
-            case 'pes':
-              pesType = probe.ts.parsePesType(packet, pmt.table);
-              pusi = probe.ts.parsePayloadUnitStartIndicator(packet);
-              if (pesType === 'video') {
-                if (pusi && !endLoop) {
-                  parsed = probe.ts.parsePesTime(packet);
-                  if (parsed) {
-                    parsed.type = 'video';
-                    result.video.push(parsed);
-                    endLoop = true;
-                  }
-                }
-                if (!result.firstKeyFrame) {
-                  if (pusi) {
-                    if (currentFrame.size !== 0) {
-                      frame = new Uint8Array(currentFrame.size);
-                      i = 0;
-                      while (currentFrame.data.length) {
-                        pes = currentFrame.data.shift();
-                        frame.set(pes, i);
-                        i += pes.byteLength;
-                      }
-                      if (probe.ts.videoPacketContainsKeyFrame(frame)) {
-                        var firstKeyFrame = probe.ts.parsePesTime(frame); // PTS/DTS may not be available. Simply *not* setting
-                        // the keyframe seems to work fine with HLS playback
-                        // and definitely preferable to a crash with TypeError...
-
-                        if (firstKeyFrame) {
-                          result.firstKeyFrame = firstKeyFrame;
-                          result.firstKeyFrame.type = 'video';
-                        } else {
-                          // eslint-disable-next-line
-                          console.warn('Failed to extract PTS/DTS from PES at first keyframe. ' + 'This could be an unusual TS segment, or else mux.js did not ' + 'parse your TS segment correctly. If you know your TS ' + 'segments do contain PTS/DTS on keyframes please file a bug ' + 'report! You can try ffprobe to double check for yourself.');
-                        }
-                      }
-                      currentFrame.size = 0;
-                    }
-                  }
-                  currentFrame.data.push(packet);
-                  currentFrame.size += packet.byteLength;
-                }
-              }
-              break;
-          }
-          if (endLoop && result.firstKeyFrame) {
-            break;
-          }
-          startIndex += MP2T_PACKET_LENGTH;
-          endIndex += MP2T_PACKET_LENGTH;
-          continue;
-        } // If we get here, we have somehow become de-synchronized and we need to step
-        // forward one byte at a time until we find a pair of sync bytes that denote
-        // a packet
-
-        startIndex++;
-        endIndex++;
-      } // Start walking from end of segment to get last video packet
-
-      endIndex = bytes.byteLength;
-      startIndex = endIndex - MP2T_PACKET_LENGTH;
-      endLoop = false;
-      while (startIndex >= 0) {
-        // Look for a pair of start and end sync bytes in the data..
-        if (bytes[startIndex] === SYNC_BYTE && bytes[endIndex] === SYNC_BYTE) {
-          // We found a packet
-          packet = bytes.subarray(startIndex, endIndex);
-          type = probe.ts.parseType(packet, pmt.pid);
-          switch (type) {
-            case 'pes':
-              pesType = probe.ts.parsePesType(packet, pmt.table);
-              pusi = probe.ts.parsePayloadUnitStartIndicator(packet);
-              if (pesType === 'video' && pusi) {
-                parsed = probe.ts.parsePesTime(packet);
-                if (parsed) {
-                  parsed.type = 'video';
-                  result.video.push(parsed);
-                  endLoop = true;
-                }
-              }
-              break;
-          }
-          if (endLoop) {
-            break;
-          }
-          startIndex -= MP2T_PACKET_LENGTH;
-          endIndex -= MP2T_PACKET_LENGTH;
-          continue;
-        } // If we get here, we have somehow become de-synchronized and we need to step
-        // forward one byte at a time until we find a pair of sync bytes that denote
-        // a packet
-
-        startIndex--;
-        endIndex--;
-      }
-    };
-    /**
-     * Adjusts the timestamp information for the segment to account for
-     * rollover and convert to seconds based on pes packet timescale (90khz clock)
-     */
-
-    var adjustTimestamp_ = function (segmentInfo, baseTimestamp) {
-      if (segmentInfo.audio && segmentInfo.audio.length) {
-        var audioBaseTimestamp = baseTimestamp;
-        if (typeof audioBaseTimestamp === 'undefined' || isNaN(audioBaseTimestamp)) {
-          audioBaseTimestamp = segmentInfo.audio[0].dts;
-        }
-        segmentInfo.audio.forEach(function (info) {
-          info.dts = handleRollover(info.dts, audioBaseTimestamp);
-          info.pts = handleRollover(info.pts, audioBaseTimestamp); // time in seconds
-
-          info.dtsTime = info.dts / ONE_SECOND_IN_TS;
-          info.ptsTime = info.pts / ONE_SECOND_IN_TS;
-        });
-      }
-      if (segmentInfo.video && segmentInfo.video.length) {
-        var videoBaseTimestamp = baseTimestamp;
-        if (typeof videoBaseTimestamp === 'undefined' || isNaN(videoBaseTimestamp)) {
-          videoBaseTimestamp = segmentInfo.video[0].dts;
-        }
-        segmentInfo.video.forEach(function (info) {
-          info.dts = handleRollover(info.dts, videoBaseTimestamp);
-          info.pts = handleRollover(info.pts, videoBaseTimestamp); // time in seconds
-
-          info.dtsTime = info.dts / ONE_SECOND_IN_TS;
-          info.ptsTime = info.pts / ONE_SECOND_IN_TS;
-        });
-        if (segmentInfo.firstKeyFrame) {
-          var frame = segmentInfo.firstKeyFrame;
-          frame.dts = handleRollover(frame.dts, videoBaseTimestamp);
-          frame.pts = handleRollover(frame.pts, videoBaseTimestamp); // time in seconds
-
-          frame.dtsTime = frame.dts / ONE_SECOND_IN_TS;
-          frame.ptsTime = frame.pts / ONE_SECOND_IN_TS;
-        }
-      }
-    };
-    /**
-     * inspects the aac data stream for start and end time information
-     */
-
-    var inspectAac_ = function (bytes) {
-      var endLoop = false,
-        audioCount = 0,
-        sampleRate = null,
-        timestamp = null,
-        frameSize = 0,
-        byteIndex = 0,
-        packet;
-      while (bytes.length - byteIndex >= 3) {
-        var type = probe.aac.parseType(bytes, byteIndex);
-        switch (type) {
-          case 'timed-metadata':
-            // Exit early because we don't have enough to parse
-            // the ID3 tag header
-            if (bytes.length - byteIndex < 10) {
-              endLoop = true;
-              break;
-            }
-            frameSize = probe.aac.parseId3TagSize(bytes, byteIndex); // Exit early if we don't have enough in the buffer
-            // to emit a full packet
-
-            if (frameSize > bytes.length) {
-              endLoop = true;
-              break;
-            }
-            if (timestamp === null) {
-              packet = bytes.subarray(byteIndex, byteIndex + frameSize);
-              timestamp = probe.aac.parseAacTimestamp(packet);
-            }
-            byteIndex += frameSize;
-            break;
-          case 'audio':
-            // Exit early because we don't have enough to parse
-            // the ADTS frame header
-            if (bytes.length - byteIndex < 7) {
-              endLoop = true;
-              break;
-            }
-            frameSize = probe.aac.parseAdtsSize(bytes, byteIndex); // Exit early if we don't have enough in the buffer
-            // to emit a full packet
-
-            if (frameSize > bytes.length) {
-              endLoop = true;
-              break;
-            }
-            if (sampleRate === null) {
-              packet = bytes.subarray(byteIndex, byteIndex + frameSize);
-              sampleRate = probe.aac.parseSampleRate(packet);
-            }
-            audioCount++;
-            byteIndex += frameSize;
-            break;
-          default:
-            byteIndex++;
-            break;
-        }
-        if (endLoop) {
-          return null;
-        }
-      }
-      if (sampleRate === null || timestamp === null) {
-        return null;
-      }
-      var audioTimescale = ONE_SECOND_IN_TS / sampleRate;
-      var result = {
-        audio: [{
-          type: 'audio',
-          dts: timestamp,
-          pts: timestamp
-        }, {
-          type: 'audio',
-          dts: timestamp + audioCount * 1024 * audioTimescale,
-          pts: timestamp + audioCount * 1024 * audioTimescale
-        }]
-      };
-      return result;
-    };
-    /**
-     * inspects the transport stream segment data for start and end time information
-     * of the audio and video tracks (when present) as well as the first key frame's
-     * start time.
-     */
-
-    var inspectTs_ = function (bytes) {
-      var pmt = {
-        pid: null,
-        table: null
-      };
-      var result = {};
-      parsePsi_(bytes, pmt);
-      for (var pid in pmt.table) {
-        if (pmt.table.hasOwnProperty(pid)) {
-          var type = pmt.table[pid];
-          switch (type) {
-            case StreamTypes.H264_STREAM_TYPE:
-              result.video = [];
-              parseVideoPes_(bytes, pmt, result);
-              if (result.video.length === 0) {
-                delete result.video;
-              }
-              break;
-            case StreamTypes.ADTS_STREAM_TYPE:
-              result.audio = [];
-              parseAudioPes_(bytes, pmt, result);
-              if (result.audio.length === 0) {
-                delete result.audio;
-              }
-              break;
-          }
-        }
-      }
-      return result;
-    };
-    /**
-     * Inspects segment byte data and returns an object with start and end timing information
-     *
-     * @param {Uint8Array} bytes The segment byte data
-     * @param {Number} baseTimestamp Relative reference timestamp used when adjusting frame
-     *  timestamps for rollover. This value must be in 90khz clock.
-     * @return {Object} Object containing start and end frame timing info of segment.
-     */
-
-    var inspect = function (bytes, baseTimestamp) {
-      var isAacData = probe.aac.isLikelyAacData(bytes);
-      var result;
-      if (isAacData) {
-        result = inspectAac_(bytes);
-      } else {
-        result = inspectTs_(bytes);
-      }
-      if (!result || !result.audio && !result.video) {
-        return null;
-      }
-      adjustTimestamp_(result, baseTimestamp);
-      return result;
-    };
-    var tsInspector = {
-      inspect: inspect,
-      parseAudioPes_: parseAudioPes_
-    };
-    /* global self */
-
-    /**
-     * Re-emits transmuxer events by converting them into messages to the
-     * world outside the worker.
-     *
-     * @param {Object} transmuxer the transmuxer to wire events on
-     * @private
-     */
-
-    const wireTransmuxerEvents = function (self, transmuxer) {
-      transmuxer.on('data', function (segment) {
-        // transfer ownership of the underlying ArrayBuffer
-        // instead of doing a copy to save memory
-        // ArrayBuffers are transferable but generic TypedArrays are not
-        // @link https://developer.mozilla.org/en-US/docs/Web/API/Web_Workers_API/Using_web_workers#Passing_data_by_transferring_ownership_(transferable_objects)
-        const initArray = segment.initSegment;
-        segment.initSegment = {
-          data: initArray.buffer,
-          byteOffset: initArray.byteOffset,
-          byteLength: initArray.byteLength
-        };
-        const typedArray = segment.data;
-        segment.data = typedArray.buffer;
-        self.postMessage({
-          action: 'data',
-          segment,
-          byteOffset: typedArray.byteOffset,
-          byteLength: typedArray.byteLength
-        }, [segment.data]);
-      });
-      transmuxer.on('done', function (data) {
-        self.postMessage({
-          action: 'done'
-        });
-      });
-      transmuxer.on('gopInfo', function (gopInfo) {
-        self.postMessage({
-          action: 'gopInfo',
-          gopInfo
-        });
-      });
-      transmuxer.on('videoSegmentTimingInfo', function (timingInfo) {
-        const videoSegmentTimingInfo = {
-          start: {
-            decode: clock$2.videoTsToSeconds(timingInfo.start.dts),
-            presentation: clock$2.videoTsToSeconds(timingInfo.start.pts)
-          },
-          end: {
-            decode: clock$2.videoTsToSeconds(timingInfo.end.dts),
-            presentation: clock$2.videoTsToSeconds(timingInfo.end.pts)
-          },
-          baseMediaDecodeTime: clock$2.videoTsToSeconds(timingInfo.baseMediaDecodeTime)
-        };
-        if (timingInfo.prependedContentDuration) {
-          videoSegmentTimingInfo.prependedContentDuration = clock$2.videoTsToSeconds(timingInfo.prependedContentDuration);
-        }
-        self.postMessage({
-          action: 'videoSegmentTimingInfo',
-          videoSegmentTimingInfo
-        });
-      });
-      transmuxer.on('audioSegmentTimingInfo', function (timingInfo) {
-        // Note that all times for [audio/video]SegmentTimingInfo events are in video clock
-        const audioSegmentTimingInfo = {
-          start: {
-            decode: clock$2.videoTsToSeconds(timingInfo.start.dts),
-            presentation: clock$2.videoTsToSeconds(timingInfo.start.pts)
-          },
-          end: {
-            decode: clock$2.videoTsToSeconds(timingInfo.end.dts),
-            presentation: clock$2.videoTsToSeconds(timingInfo.end.pts)
-          },
-          baseMediaDecodeTime: clock$2.videoTsToSeconds(timingInfo.baseMediaDecodeTime)
-        };
-        if (timingInfo.prependedContentDuration) {
-          audioSegmentTimingInfo.prependedContentDuration = clock$2.videoTsToSeconds(timingInfo.prependedContentDuration);
-        }
-        self.postMessage({
-          action: 'audioSegmentTimingInfo',
-          audioSegmentTimingInfo
-        });
-      });
-      transmuxer.on('id3Frame', function (id3Frame) {
-        self.postMessage({
-          action: 'id3Frame',
-          id3Frame
-        });
-      });
-      transmuxer.on('caption', function (caption) {
-        self.postMessage({
-          action: 'caption',
-          caption
-        });
-      });
-      transmuxer.on('trackinfo', function (trackInfo) {
-        self.postMessage({
-          action: 'trackinfo',
-          trackInfo
-        });
-      });
-      transmuxer.on('audioTimingInfo', function (audioTimingInfo) {
-        // convert to video TS since we prioritize video time over audio
-        self.postMessage({
-          action: 'audioTimingInfo',
-          audioTimingInfo: {
-            start: clock$2.videoTsToSeconds(audioTimingInfo.start),
-            end: clock$2.videoTsToSeconds(audioTimingInfo.end)
-          }
-        });
-      });
-      transmuxer.on('videoTimingInfo', function (videoTimingInfo) {
-        self.postMessage({
-          action: 'videoTimingInfo',
-          videoTimingInfo: {
-            start: clock$2.videoTsToSeconds(videoTimingInfo.start),
-            end: clock$2.videoTsToSeconds(videoTimingInfo.end)
-          }
-        });
-      });
-      transmuxer.on('log', function (log) {
-        self.postMessage({
-          action: 'log',
-          log
-        });
-      });
-    };
-    /**
-     * All incoming messages route through this hash. If no function exists
-     * to handle an incoming message, then we ignore the message.
-     *
-     * @class MessageHandlers
-     * @param {Object} options the options to initialize with
-     */
-
-    class MessageHandlers {
-      constructor(self, options) {
-        this.options = options || {};
-        this.self = self;
-        this.init();
-      }
-      /**
-       * initialize our web worker and wire all the events.
-       */
-
-      init() {
-        if (this.transmuxer) {
-          this.transmuxer.dispose();
-        }
-        this.transmuxer = new transmuxer.Transmuxer(this.options);
-        wireTransmuxerEvents(this.self, this.transmuxer);
-      }
-      pushMp4Captions(data) {
-        if (!this.captionParser) {
-          this.captionParser = new captionParser();
-          this.captionParser.init();
-        }
-        const segment = new Uint8Array(data.data, data.byteOffset, data.byteLength);
-        const parsed = this.captionParser.parse(segment, data.trackIds, data.timescales);
-        this.self.postMessage({
-          action: 'mp4Captions',
-          captions: parsed && parsed.captions || [],
-          logs: parsed && parsed.logs || [],
-          data: segment.buffer
-        }, [segment.buffer]);
-      }
-      probeMp4StartTime({
-        timescales,
-        data
-      }) {
-        const startTime = probe$2.startTime(timescales, data);
-        this.self.postMessage({
-          action: 'probeMp4StartTime',
-          startTime,
-          data
-        }, [data.buffer]);
-      }
-      probeMp4Tracks({
-        data
-      }) {
-        const tracks = probe$2.tracks(data);
-        this.self.postMessage({
-          action: 'probeMp4Tracks',
-          tracks,
-          data
-        }, [data.buffer]);
-      }
-      /**
-       * Probes an mp4 segment for EMSG boxes containing ID3 data.
-       * https://aomediacodec.github.io/id3-emsg/
-       *
-       * @param {Uint8Array} data segment data
-       * @param {number} offset segment start time
-       * @return {Object[]} an array of ID3 frames
-       */
-
-      probeEmsgID3({
-        data,
-        offset
-      }) {
-        const id3Frames = probe$2.getEmsgID3(data, offset);
-        this.self.postMessage({
-          action: 'probeEmsgID3',
-          id3Frames,
-          emsgData: data
-        }, [data.buffer]);
-      }
-      /**
-       * Probe an mpeg2-ts segment to determine the start time of the segment in it's
-       * internal "media time," as well as whether it contains video and/or audio.
-       *
-       * @private
-       * @param {Uint8Array} bytes - segment bytes
-       * @param {number} baseStartTime
-       *        Relative reference timestamp used when adjusting frame timestamps for rollover.
-       *        This value should be in seconds, as it's converted to a 90khz clock within the
-       *        function body.
-       * @return {Object} The start time of the current segment in "media time" as well as
-       *                  whether it contains video and/or audio
-       */
-
-      probeTs({
-        data,
-        baseStartTime
-      }) {
-        const tsStartTime = typeof baseStartTime === 'number' && !isNaN(baseStartTime) ? baseStartTime * clock$2.ONE_SECOND_IN_TS : void 0;
-        const timeInfo = tsInspector.inspect(data, tsStartTime);
-        let result = null;
-        if (timeInfo) {
-          result = {
-            // each type's time info comes back as an array of 2 times, start and end
-            hasVideo: timeInfo.video && timeInfo.video.length === 2 || false,
-            hasAudio: timeInfo.audio && timeInfo.audio.length === 2 || false
-          };
-          if (result.hasVideo) {
-            result.videoStart = timeInfo.video[0].ptsTime;
-          }
-          if (result.hasAudio) {
-            result.audioStart = timeInfo.audio[0].ptsTime;
-          }
-        }
-        this.self.postMessage({
-          action: 'probeTs',
-          result,
-          data
-        }, [data.buffer]);
-      }
-      clearAllMp4Captions() {
-        if (this.captionParser) {
-          this.captionParser.clearAllCaptions();
-        }
-      }
-      clearParsedMp4Captions() {
-        if (this.captionParser) {
-          this.captionParser.clearParsedCaptions();
-        }
-      }
-      /**
-       * Adds data (a ts segment) to the start of the transmuxer pipeline for
-       * processing.
-       *
-       * @param {ArrayBuffer} data data to push into the muxer
-       */
-
-      push(data) {
-        // Cast array buffer to correct type for transmuxer
-        const segment = new Uint8Array(data.data, data.byteOffset, data.byteLength);
-        this.transmuxer.push(segment);
-      }
-      /**
-       * Recreate the transmuxer so that the next segment added via `push`
-       * start with a fresh transmuxer.
-       */
-
-      reset() {
-        this.transmuxer.reset();
-      }
-      /**
-       * Set the value that will be used as the `baseMediaDecodeTime` time for the
-       * next segment pushed in. Subsequent segments will have their `baseMediaDecodeTime`
-       * set relative to the first based on the PTS values.
-       *
-       * @param {Object} data used to set the timestamp offset in the muxer
-       */
-
-      setTimestampOffset(data) {
-        const timestampOffset = data.timestampOffset || 0;
-        this.transmuxer.setBaseMediaDecodeTime(Math.round(clock$2.secondsToVideoTs(timestampOffset)));
-      }
-      setAudioAppendStart(data) {
-        this.transmuxer.setAudioAppendStart(Math.ceil(clock$2.secondsToVideoTs(data.appendStart)));
-      }
-      setRemux(data) {
-        this.transmuxer.setRemux(data.remux);
-      }
-      /**
-       * Forces the pipeline to finish processing the last segment and emit it's
-       * results.
-       *
-       * @param {Object} data event data, not really used
-       */
-
-      flush(data) {
-        this.transmuxer.flush(); // transmuxed done action is fired after both audio/video pipelines are flushed
-
-        self.postMessage({
-          action: 'done',
-          type: 'transmuxed'
-        });
-      }
-      endTimeline() {
-        this.transmuxer.endTimeline(); // transmuxed endedtimeline action is fired after both audio/video pipelines end their
-        // timelines
-
-        self.postMessage({
-          action: 'endedtimeline',
-          type: 'transmuxed'
-        });
-      }
-      alignGopsWith(data) {
-        this.transmuxer.alignGopsWith(data.gopsToAlignWith.slice());
-      }
-    }
-    /**
-     * Our web worker interface so that things can talk to mux.js
-     * that will be running in a web worker. the scope is passed to this by
-     * webworkify.
-     *
-     * @param {Object} self the scope for the web worker
-     */
-
-    self.onmessage = function (event) {
-      if (event.data.action === 'init' && event.data.options) {
-        this.messageHandlers = new MessageHandlers(self, event.data.options);
-        return;
-      }
-      if (!this.messageHandlers) {
-        this.messageHandlers = new MessageHandlers(self);
-      }
-      if (event.data && event.data.action && event.data.action !== 'init') {
-        if (this.messageHandlers[event.data.action]) {
-          this.messageHandlers[event.data.action](event.data);
-        }
-      }
-    };
-  }));
-  var TransmuxWorker = factory(workerCode$1);
-  /* rollup-plugin-worker-factory end for worker!/home/runner/work/http-streaming/http-streaming/src/transmuxer-worker.js */
-
-  const handleData_ = (event, transmuxedData, callback) => {
-    const {
-      type,
-      initSegment,
-      captions,
-      captionStreams,
-      metadata,
-      videoFrameDtsTime,
-      videoFramePtsTime
-    } = event.data.segment;
-    transmuxedData.buffer.push({
-      captions,
-      captionStreams,
-      metadata
-    });
-    const boxes = event.data.segment.boxes || {
-      data: event.data.segment.data
-    };
-    const result = {
-      type,
-      // cast ArrayBuffer to TypedArray
-      data: new Uint8Array(boxes.data, boxes.data.byteOffset, boxes.data.byteLength),
-      initSegment: new Uint8Array(initSegment.data, initSegment.byteOffset, initSegment.byteLength)
-    };
-    if (typeof videoFrameDtsTime !== 'undefined') {
-      result.videoFrameDtsTime = videoFrameDtsTime;
-    }
-    if (typeof videoFramePtsTime !== 'undefined') {
-      result.videoFramePtsTime = videoFramePtsTime;
-    }
-    callback(result);
-  };
-  const handleDone_ = ({
-    transmuxedData,
-    callback
-  }) => {
-    // Previously we only returned data on data events,
-    // not on done events. Clear out the buffer to keep that consistent.
-    transmuxedData.buffer = []; // all buffers should have been flushed from the muxer, so start processing anything we
-    // have received
-
-    callback(transmuxedData);
-  };
-  const handleGopInfo_ = (event, transmuxedData) => {
-    transmuxedData.gopInfo = event.data.gopInfo;
-  };
-  const processTransmux = options => {
-    const {
-      transmuxer,
-      bytes,
-      audioAppendStart,
-      gopsToAlignWith,
-      remux,
-      onData,
-      onTrackInfo,
-      onAudioTimingInfo,
-      onVideoTimingInfo,
-      onVideoSegmentTimingInfo,
-      onAudioSegmentTimingInfo,
-      onId3,
-      onCaptions,
-      onDone,
-      onEndedTimeline,
-      onTransmuxerLog,
-      isEndOfTimeline
-    } = options;
-    const transmuxedData = {
-      buffer: []
-    };
-    let waitForEndedTimelineEvent = isEndOfTimeline;
-    const handleMessage = event => {
-      if (transmuxer.currentTransmux !== options) {
-        // disposed
-        return;
-      }
-      if (event.data.action === 'data') {
-        handleData_(event, transmuxedData, onData);
-      }
-      if (event.data.action === 'trackinfo') {
-        onTrackInfo(event.data.trackInfo);
-      }
-      if (event.data.action === 'gopInfo') {
-        handleGopInfo_(event, transmuxedData);
-      }
-      if (event.data.action === 'audioTimingInfo') {
-        onAudioTimingInfo(event.data.audioTimingInfo);
-      }
-      if (event.data.action === 'videoTimingInfo') {
-        onVideoTimingInfo(event.data.videoTimingInfo);
-      }
-      if (event.data.action === 'videoSegmentTimingInfo') {
-        onVideoSegmentTimingInfo(event.data.videoSegmentTimingInfo);
-      }
-      if (event.data.action === 'audioSegmentTimingInfo') {
-        onAudioSegmentTimingInfo(event.data.audioSegmentTimingInfo);
-      }
-      if (event.data.action === 'id3Frame') {
-        onId3([event.data.id3Frame], event.data.id3Frame.dispatchType);
-      }
-      if (event.data.action === 'caption') {
-        onCaptions(event.data.caption);
-      }
-      if (event.data.action === 'endedtimeline') {
-        waitForEndedTimelineEvent = false;
-        onEndedTimeline();
-      }
-      if (event.data.action === 'log') {
-        onTransmuxerLog(event.data.log);
-      } // wait for the transmuxed event since we may have audio and video
-
-      if (event.data.type !== 'transmuxed') {
-        return;
-      } // If the "endedtimeline" event has not yet fired, and this segment represents the end
-      // of a timeline, that means there may still be data events before the segment
-      // processing can be considerred complete. In that case, the final event should be
-      // an "endedtimeline" event with the type "transmuxed."
-
-      if (waitForEndedTimelineEvent) {
-        return;
-      }
-      transmuxer.onmessage = null;
-      handleDone_({
-        transmuxedData,
-        callback: onDone
-      });
-      /* eslint-disable no-use-before-define */
-
-      dequeue(transmuxer);
-      /* eslint-enable */
-    };
-
-    transmuxer.onmessage = handleMessage;
-    if (audioAppendStart) {
-      transmuxer.postMessage({
-        action: 'setAudioAppendStart',
-        appendStart: audioAppendStart
-      });
-    } // allow empty arrays to be passed to clear out GOPs
-
-    if (Array.isArray(gopsToAlignWith)) {
-      transmuxer.postMessage({
-        action: 'alignGopsWith',
-        gopsToAlignWith
-      });
-    }
-    if (typeof remux !== 'undefined') {
-      transmuxer.postMessage({
-        action: 'setRemux',
-        remux
-      });
-    }
-    if (bytes.byteLength) {
-      const buffer = bytes instanceof ArrayBuffer ? bytes : bytes.buffer;
-      const byteOffset = bytes instanceof ArrayBuffer ? 0 : bytes.byteOffset;
-      transmuxer.postMessage({
-        action: 'push',
-        // Send the typed-array of data as an ArrayBuffer so that
-        // it can be sent as a "Transferable" and avoid the costly
-        // memory copy
-        data: buffer,
-        // To recreate the original typed-array, we need information
-        // about what portion of the ArrayBuffer it was a view into
-        byteOffset,
-        byteLength: bytes.byteLength
-      }, [buffer]);
-    }
-    if (isEndOfTimeline) {
-      transmuxer.postMessage({
-        action: 'endTimeline'
-      });
-    } // even if we didn't push any bytes, we have to make sure we flush in case we reached
-    // the end of the segment
-
-    transmuxer.postMessage({
-      action: 'flush'
-    });
-  };
-  const dequeue = transmuxer => {
-    transmuxer.currentTransmux = null;
-    if (transmuxer.transmuxQueue.length) {
-      transmuxer.currentTransmux = transmuxer.transmuxQueue.shift();
-      if (typeof transmuxer.currentTransmux === 'function') {
-        transmuxer.currentTransmux();
-      } else {
-        processTransmux(transmuxer.currentTransmux);
-      }
-    }
-  };
-  const processAction = (transmuxer, action) => {
-    transmuxer.postMessage({
-      action
-    });
-    dequeue(transmuxer);
-  };
-  const enqueueAction = (action, transmuxer) => {
-    if (!transmuxer.currentTransmux) {
-      transmuxer.currentTransmux = action;
-      processAction(transmuxer, action);
-      return;
-    }
-    transmuxer.transmuxQueue.push(processAction.bind(null, transmuxer, action));
-  };
-  const reset = transmuxer => {
-    enqueueAction('reset', transmuxer);
-  };
-  const endTimeline = transmuxer => {
-    enqueueAction('endTimeline', transmuxer);
-  };
-  const transmux = options => {
-    if (!options.transmuxer.currentTransmux) {
-      options.transmuxer.currentTransmux = options;
-      processTransmux(options);
-      return;
-    }
-    options.transmuxer.transmuxQueue.push(options);
-  };
-  const createTransmuxer = options => {
-    const transmuxer = new TransmuxWorker();
-    transmuxer.currentTransmux = null;
-    transmuxer.transmuxQueue = [];
-    const term = transmuxer.terminate;
-    transmuxer.terminate = () => {
-      transmuxer.currentTransmux = null;
-      transmuxer.transmuxQueue.length = 0;
-      return term.call(transmuxer);
-    };
-    transmuxer.postMessage({
-      action: 'init',
-      options
-    });
-    return transmuxer;
-  };
-  var segmentTransmuxer = {
-    reset,
-    endTimeline,
-    transmux,
-    createTransmuxer
-  };
-  const workerCallback = function (options) {
-    const transmuxer = options.transmuxer;
-    const endAction = options.endAction || options.action;
-    const callback = options.callback;
-    const message = _extends$1({}, options, {
-      endAction: null,
-      transmuxer: null,
-      callback: null
-    });
-    const listenForEndEvent = event => {
-      if (event.data.action !== endAction) {
-        return;
-      }
-      transmuxer.removeEventListener('message', listenForEndEvent); // transfer ownership of bytes back to us.
-
-      if (event.data.data) {
-        event.data.data = new Uint8Array(event.data.data, options.byteOffset || 0, options.byteLength || event.data.data.byteLength);
-        if (options.data) {
-          options.data = event.data.data;
-        }
-      }
-      callback(event.data);
-    };
-    transmuxer.addEventListener('message', listenForEndEvent);
-    if (options.data) {
-      const isArrayBuffer = options.data instanceof ArrayBuffer;
-      message.byteOffset = isArrayBuffer ? 0 : options.data.byteOffset;
-      message.byteLength = options.data.byteLength;
-      const transfers = [isArrayBuffer ? options.data : options.data.buffer];
-      transmuxer.postMessage(message, transfers);
-    } else {
-      transmuxer.postMessage(message);
-    }
-  };
-  const REQUEST_ERRORS = {
-    FAILURE: 2,
-    TIMEOUT: -101,
-    ABORTED: -102
-  };
-  /**
-   * Abort all requests
-   *
-   * @param {Object} activeXhrs - an object that tracks all XHR requests
-   */
-
-  const abortAll = activeXhrs => {
-    activeXhrs.forEach(xhr => {
-      xhr.abort();
-    });
-  };
-  /**
-   * Gather important bandwidth stats once a request has completed
-   *
-   * @param {Object} request - the XHR request from which to gather stats
-   */
-
-  const getRequestStats = request => {
-    return {
-      bandwidth: request.bandwidth,
-      bytesReceived: request.bytesReceived || 0,
-      roundTripTime: request.roundTripTime || 0
-    };
-  };
-  /**
-   * If possible gather bandwidth stats as a request is in
-   * progress
-   *
-   * @param {Event} progressEvent - an event object from an XHR's progress event
-   */
-
-  const getProgressStats = progressEvent => {
-    const request = progressEvent.target;
-    const roundTripTime = Date.now() - request.requestTime;
-    const stats = {
-      bandwidth: Infinity,
-      bytesReceived: 0,
-      roundTripTime: roundTripTime || 0
-    };
-    stats.bytesReceived = progressEvent.loaded; // This can result in Infinity if stats.roundTripTime is 0 but that is ok
-    // because we should only use bandwidth stats on progress to determine when
-    // abort a request early due to insufficient bandwidth
-
-    stats.bandwidth = Math.floor(stats.bytesReceived / stats.roundTripTime * 8 * 1000);
-    return stats;
-  };
-  /**
-   * Handle all error conditions in one place and return an object
-   * with all the information
-   *
-   * @param {Error|null} error - if non-null signals an error occured with the XHR
-   * @param {Object} request -  the XHR request that possibly generated the error
-   */
-
-  const handleErrors = (error, request) => {
-    if (request.timedout) {
-      return {
-        status: request.status,
-        message: 'HLS request timed-out at URL: ' + request.uri,
-        code: REQUEST_ERRORS.TIMEOUT,
-        xhr: request
-      };
-    }
-    if (request.aborted) {
-      return {
-        status: request.status,
-        message: 'HLS request aborted at URL: ' + request.uri,
-        code: REQUEST_ERRORS.ABORTED,
-        xhr: request
-      };
-    }
-    if (error) {
-      return {
-        status: request.status,
-        message: 'HLS request errored at URL: ' + request.uri,
-        code: REQUEST_ERRORS.FAILURE,
-        xhr: request
-      };
-    }
-    if (request.responseType === 'arraybuffer' && request.response.byteLength === 0) {
-      return {
-        status: request.status,
-        message: 'Empty HLS response at URL: ' + request.uri,
-        code: REQUEST_ERRORS.FAILURE,
-        xhr: request
-      };
-    }
-    return null;
-  };
-  /**
-   * Handle responses for key data and convert the key data to the correct format
-   * for the decryption step later
-   *
-   * @param {Object} segment - a simplified copy of the segmentInfo object
-   *                           from SegmentLoader
-   * @param {Array} objects - objects to add the key bytes to.
-   * @param {Function} finishProcessingFn - a callback to execute to continue processing
-   *                                        this request
-   */
-
-  const handleKeyResponse = (segment, objects, finishProcessingFn) => (error, request) => {
-    const response = request.response;
-    const errorObj = handleErrors(error, request);
-    if (errorObj) {
-      return finishProcessingFn(errorObj, segment);
-    }
-    if (response.byteLength !== 16) {
-      return finishProcessingFn({
-        status: request.status,
-        message: 'Invalid HLS key at URL: ' + request.uri,
-        code: REQUEST_ERRORS.FAILURE,
-        xhr: request
-      }, segment);
-    }
-    const view = new DataView(response);
-    const bytes = new Uint32Array([view.getUint32(0), view.getUint32(4), view.getUint32(8), view.getUint32(12)]);
-    for (let i = 0; i < objects.length; i++) {
-      objects[i].bytes = bytes;
-    }
-    return finishProcessingFn(null, segment);
-  };
-  const parseInitSegment = (segment, callback) => {
-    const type = detectContainerForBytes(segment.map.bytes); // TODO: We should also handle ts init segments here, but we
-    // only know how to parse mp4 init segments at the moment
-
-    if (type !== 'mp4') {
-      const uri = segment.map.resolvedUri || segment.map.uri;
-      const mediaType = type || 'unknown';
-      return callback({
-        internal: true,
-        message: `Found unsupported ${mediaType} container for initialization segment at URL: ${uri}`,
-        code: REQUEST_ERRORS.FAILURE,
-        metadata: {
-          errorType: videojs.Error.UnsupportedMediaInitialization,
-          mediaType
-        }
-      });
-    }
-    workerCallback({
-      action: 'probeMp4Tracks',
-      data: segment.map.bytes,
-      transmuxer: segment.transmuxer,
-      callback: ({
-        tracks,
-        data
-      }) => {
-        // transfer bytes back to us
-        segment.map.bytes = data;
-        tracks.forEach(function (track) {
-          segment.map.tracks = segment.map.tracks || {}; // only support one track of each type for now
-
-          if (segment.map.tracks[track.type]) {
-            return;
-          }
-          segment.map.tracks[track.type] = track;
-          if (typeof track.id === 'number' && track.timescale) {
-            segment.map.timescales = segment.map.timescales || {};
-            segment.map.timescales[track.id] = track.timescale;
-          }
-        });
-        return callback(null);
-      }
-    });
-  };
-  /**
-   * Handle init-segment responses
-   *
-   * @param {Object} segment - a simplified copy of the segmentInfo object
-   *                           from SegmentLoader
-   * @param {Function} finishProcessingFn - a callback to execute to continue processing
-   *                                        this request
-   */
-
-  const handleInitSegmentResponse = ({
-    segment,
-    finishProcessingFn
-  }) => (error, request) => {
-    const errorObj = handleErrors(error, request);
-    if (errorObj) {
-      return finishProcessingFn(errorObj, segment);
-    }
-    const bytes = new Uint8Array(request.response); // init segment is encypted, we will have to wait
-    // until the key request is done to decrypt.
-
-    if (segment.map.key) {
-      segment.map.encryptedBytes = bytes;
-      return finishProcessingFn(null, segment);
-    }
-    segment.map.bytes = bytes;
-    parseInitSegment(segment, function (parseError) {
-      if (parseError) {
-        parseError.xhr = request;
-        parseError.status = request.status;
-        return finishProcessingFn(parseError, segment);
-      }
-      finishProcessingFn(null, segment);
-    });
-  };
-  /**
-   * Response handler for segment-requests being sure to set the correct
-   * property depending on whether the segment is encryped or not
-   * Also records and keeps track of stats that are used for ABR purposes
-   *
-   * @param {Object} segment - a simplified copy of the segmentInfo object
-   *                           from SegmentLoader
-   * @param {Function} finishProcessingFn - a callback to execute to continue processing
-   *                                        this request
-   */
-
-  const handleSegmentResponse = ({
-    segment,
-    finishProcessingFn,
-    responseType
-  }) => (error, request) => {
-    const errorObj = handleErrors(error, request);
-    if (errorObj) {
-      return finishProcessingFn(errorObj, segment);
-    }
-    const newBytes =
-    // although responseText "should" exist, this guard serves to prevent an error being
-    // thrown for two primary cases:
-    // 1. the mime type override stops working, or is not implemented for a specific
-    //    browser
-    // 2. when using mock XHR libraries like sinon that do not allow the override behavior
-    responseType === 'arraybuffer' || !request.responseText ? request.response : stringToArrayBuffer(request.responseText.substring(segment.lastReachedChar || 0));
-    segment.stats = getRequestStats(request);
-    if (segment.key) {
-      segment.encryptedBytes = new Uint8Array(newBytes);
-    } else {
-      segment.bytes = new Uint8Array(newBytes);
-    }
-    return finishProcessingFn(null, segment);
-  };
-  const transmuxAndNotify = ({
-    segment,
-    bytes,
-    trackInfoFn,
-    timingInfoFn,
-    videoSegmentTimingInfoFn,
-    audioSegmentTimingInfoFn,
-    id3Fn,
-    captionsFn,
-    isEndOfTimeline,
-    endedTimelineFn,
-    dataFn,
-    doneFn,
-    onTransmuxerLog
-  }) => {
-    const fmp4Tracks = segment.map && segment.map.tracks || {};
-    const isMuxed = Boolean(fmp4Tracks.audio && fmp4Tracks.video); // Keep references to each function so we can null them out after we're done with them.
-    // One reason for this is that in the case of full segments, we want to trust start
-    // times from the probe, rather than the transmuxer.
-
-    let audioStartFn = timingInfoFn.bind(null, segment, 'audio', 'start');
-    const audioEndFn = timingInfoFn.bind(null, segment, 'audio', 'end');
-    let videoStartFn = timingInfoFn.bind(null, segment, 'video', 'start');
-    const videoEndFn = timingInfoFn.bind(null, segment, 'video', 'end');
-    const finish = () => transmux({
-      bytes,
-      transmuxer: segment.transmuxer,
-      audioAppendStart: segment.audioAppendStart,
-      gopsToAlignWith: segment.gopsToAlignWith,
-      remux: isMuxed,
-      onData: result => {
-        result.type = result.type === 'combined' ? 'video' : result.type;
-        dataFn(segment, result);
-      },
-      onTrackInfo: trackInfo => {
-        if (trackInfoFn) {
-          if (isMuxed) {
-            trackInfo.isMuxed = true;
-          }
-          trackInfoFn(segment, trackInfo);
-        }
-      },
-      onAudioTimingInfo: audioTimingInfo => {
-        // we only want the first start value we encounter
-        if (audioStartFn && typeof audioTimingInfo.start !== 'undefined') {
-          audioStartFn(audioTimingInfo.start);
-          audioStartFn = null;
-        } // we want to continually update the end time
-
-        if (audioEndFn && typeof audioTimingInfo.end !== 'undefined') {
-          audioEndFn(audioTimingInfo.end);
-        }
-      },
-      onVideoTimingInfo: videoTimingInfo => {
-        // we only want the first start value we encounter
-        if (videoStartFn && typeof videoTimingInfo.start !== 'undefined') {
-          videoStartFn(videoTimingInfo.start);
-          videoStartFn = null;
-        } // we want to continually update the end time
-
-        if (videoEndFn && typeof videoTimingInfo.end !== 'undefined') {
-          videoEndFn(videoTimingInfo.end);
-        }
-      },
-      onVideoSegmentTimingInfo: videoSegmentTimingInfo => {
-        videoSegmentTimingInfoFn(videoSegmentTimingInfo);
-      },
-      onAudioSegmentTimingInfo: audioSegmentTimingInfo => {
-        audioSegmentTimingInfoFn(audioSegmentTimingInfo);
-      },
-      onId3: (id3Frames, dispatchType) => {
-        id3Fn(segment, id3Frames, dispatchType);
-      },
-      onCaptions: captions => {
-        captionsFn(segment, [captions]);
-      },
-      isEndOfTimeline,
-      onEndedTimeline: () => {
-        endedTimelineFn();
-      },
-      onTransmuxerLog,
-      onDone: result => {
-        if (!doneFn) {
-          return;
-        }
-        result.type = result.type === 'combined' ? 'video' : result.type;
-        doneFn(null, segment, result);
-      }
-    }); // In the transmuxer, we don't yet have the ability to extract a "proper" start time.
-    // Meaning cached frame data may corrupt our notion of where this segment
-    // really starts. To get around this, probe for the info needed.
-
-    workerCallback({
-      action: 'probeTs',
-      transmuxer: segment.transmuxer,
-      data: bytes,
-      baseStartTime: segment.baseStartTime,
-      callback: data => {
-        segment.bytes = bytes = data.data;
-        const probeResult = data.result;
-        if (probeResult) {
-          trackInfoFn(segment, {
-            hasAudio: probeResult.hasAudio,
-            hasVideo: probeResult.hasVideo,
-            isMuxed
-          });
-          trackInfoFn = null;
-        }
-        finish();
-      }
-    });
-  };
-  const handleSegmentBytes = ({
-    segment,
-    bytes,
-    trackInfoFn,
-    timingInfoFn,
-    videoSegmentTimingInfoFn,
-    audioSegmentTimingInfoFn,
-    id3Fn,
-    captionsFn,
-    isEndOfTimeline,
-    endedTimelineFn,
-    dataFn,
-    doneFn,
-    onTransmuxerLog
-  }) => {
-    let bytesAsUint8Array = new Uint8Array(bytes); // TODO:
-    // We should have a handler that fetches the number of bytes required
-    // to check if something is fmp4. This will allow us to save bandwidth
-    // because we can only exclude a playlist and abort requests
-    // by codec after trackinfo triggers.
-
-    if (isLikelyFmp4MediaSegment(bytesAsUint8Array)) {
-      segment.isFmp4 = true;
-      const {
-        tracks
-      } = segment.map;
-      const trackInfo = {
-        isFmp4: true,
-        hasVideo: !!tracks.video,
-        hasAudio: !!tracks.audio
-      }; // if we have a audio track, with a codec that is not set to
-      // encrypted audio
-
-      if (tracks.audio && tracks.audio.codec && tracks.audio.codec !== 'enca') {
-        trackInfo.audioCodec = tracks.audio.codec;
-      } // if we have a video track, with a codec that is not set to
-      // encrypted video
-
-      if (tracks.video && tracks.video.codec && tracks.video.codec !== 'encv') {
-        trackInfo.videoCodec = tracks.video.codec;
-      }
-      if (tracks.video && tracks.audio) {
-        trackInfo.isMuxed = true;
-      } // since we don't support appending fmp4 data on progress, we know we have the full
-      // segment here
-
-      trackInfoFn(segment, trackInfo); // The probe doesn't provide the segment end time, so only callback with the start
-      // time. The end time can be roughly calculated by the receiver using the duration.
-      //
-      // Note that the start time returned by the probe reflects the baseMediaDecodeTime, as
-      // that is the true start of the segment (where the playback engine should begin
-      // decoding).
-
-      const finishLoading = (captions, id3Frames) => {
-        // if the track still has audio at this point it is only possible
-        // for it to be audio only. See `tracks.video && tracks.audio` if statement
-        // above.
-        // we make sure to use segment.bytes here as that
-        dataFn(segment, {
-          data: bytesAsUint8Array,
-          type: trackInfo.hasAudio && !trackInfo.isMuxed ? 'audio' : 'video'
-        });
-        if (id3Frames && id3Frames.length) {
-          id3Fn(segment, id3Frames);
-        }
-        if (captions && captions.length) {
-          captionsFn(segment, captions);
-        }
-        doneFn(null, segment, {});
-      };
-      workerCallback({
-        action: 'probeMp4StartTime',
-        timescales: segment.map.timescales,
-        data: bytesAsUint8Array,
-        transmuxer: segment.transmuxer,
-        callback: ({
-          data,
-          startTime
-        }) => {
-          // transfer bytes back to us
-          bytes = data.buffer;
-          segment.bytes = bytesAsUint8Array = data;
-          if (trackInfo.hasAudio && !trackInfo.isMuxed) {
-            timingInfoFn(segment, 'audio', 'start', startTime);
-          }
-          if (trackInfo.hasVideo) {
-            timingInfoFn(segment, 'video', 'start', startTime);
-          }
-          workerCallback({
-            action: 'probeEmsgID3',
-            data: bytesAsUint8Array,
-            transmuxer: segment.transmuxer,
-            offset: startTime,
-            callback: ({
-              emsgData,
-              id3Frames
-            }) => {
-              // transfer bytes back to us
-              bytes = emsgData.buffer;
-              segment.bytes = bytesAsUint8Array = emsgData; // Run through the CaptionParser in case there are captions.
-              // Initialize CaptionParser if it hasn't been yet
-
-              if (!tracks.video || !emsgData.byteLength || !segment.transmuxer) {
-                finishLoading(undefined, id3Frames);
-                return;
-              }
-              workerCallback({
-                action: 'pushMp4Captions',
-                endAction: 'mp4Captions',
-                transmuxer: segment.transmuxer,
-                data: bytesAsUint8Array,
-                timescales: segment.map.timescales,
-                trackIds: [tracks.video.id],
-                callback: message => {
-                  // transfer bytes back to us
-                  bytes = message.data.buffer;
-                  segment.bytes = bytesAsUint8Array = message.data;
-                  message.logs.forEach(function (log) {
-                    onTransmuxerLog(merge(log, {
-                      stream: 'mp4CaptionParser'
-                    }));
-                  });
-                  finishLoading(message.captions, id3Frames);
-                }
-              });
-            }
-          });
-        }
-      });
-      return;
-    } // VTT or other segments that don't need processing
-
-    if (!segment.transmuxer) {
-      doneFn(null, segment, {});
-      return;
-    }
-    if (typeof segment.container === 'undefined') {
-      segment.container = detectContainerForBytes(bytesAsUint8Array);
-    }
-    if (segment.container !== 'ts' && segment.container !== 'aac') {
-      trackInfoFn(segment, {
-        hasAudio: false,
-        hasVideo: false
-      });
-      doneFn(null, segment, {});
-      return;
-    } // ts or aac
-
-    transmuxAndNotify({
-      segment,
-      bytes,
-      trackInfoFn,
-      timingInfoFn,
-      videoSegmentTimingInfoFn,
-      audioSegmentTimingInfoFn,
-      id3Fn,
-      captionsFn,
-      isEndOfTimeline,
-      endedTimelineFn,
-      dataFn,
-      doneFn,
-      onTransmuxerLog
-    });
-  };
-  const decrypt = function ({
-    id,
-    key,
-    encryptedBytes,
-    decryptionWorker
-  }, callback) {
-    const decryptionHandler = event => {
-      if (event.data.source === id) {
-        decryptionWorker.removeEventListener('message', decryptionHandler);
-        const decrypted = event.data.decrypted;
-        callback(new Uint8Array(decrypted.bytes, decrypted.byteOffset, decrypted.byteLength));
-      }
-    };
-    decryptionWorker.addEventListener('message', decryptionHandler);
-    let keyBytes;
-    if (key.bytes.slice) {
-      keyBytes = key.bytes.slice();
-    } else {
-      keyBytes = new Uint32Array(Array.prototype.slice.call(key.bytes));
-    } // incrementally decrypt the bytes
-
-    decryptionWorker.postMessage(createTransferableMessage({
-      source: id,
-      encrypted: encryptedBytes,
-      key: keyBytes,
-      iv: key.iv
-    }), [encryptedBytes.buffer, keyBytes.buffer]);
-  };
-  /**
-   * Decrypt the segment via the decryption web worker
-   *
-   * @param {WebWorker} decryptionWorker - a WebWorker interface to AES-128 decryption
-   *                                       routines
-   * @param {Object} segment - a simplified copy of the segmentInfo object
-   *                           from SegmentLoader
-   * @param {Function} trackInfoFn - a callback that receives track info
-   * @param {Function} timingInfoFn - a callback that receives timing info
-   * @param {Function} videoSegmentTimingInfoFn
-   *                   a callback that receives video timing info based on media times and
-   *                   any adjustments made by the transmuxer
-   * @param {Function} audioSegmentTimingInfoFn
-   *                   a callback that receives audio timing info based on media times and
-   *                   any adjustments made by the transmuxer
-   * @param {boolean}  isEndOfTimeline
-   *                   true if this segment represents the last segment in a timeline
-   * @param {Function} endedTimelineFn
-   *                   a callback made when a timeline is ended, will only be called if
-   *                   isEndOfTimeline is true
-   * @param {Function} dataFn - a callback that is executed when segment bytes are available
-   *                            and ready to use
-   * @param {Function} doneFn - a callback that is executed after decryption has completed
-   */
-
-  const decryptSegment = ({
-    decryptionWorker,
-    segment,
-    trackInfoFn,
-    timingInfoFn,
-    videoSegmentTimingInfoFn,
-    audioSegmentTimingInfoFn,
-    id3Fn,
-    captionsFn,
-    isEndOfTimeline,
-    endedTimelineFn,
-    dataFn,
-    doneFn,
-    onTransmuxerLog
-  }) => {
-    decrypt({
-      id: segment.requestId,
-      key: segment.key,
-      encryptedBytes: segment.encryptedBytes,
-      decryptionWorker
-    }, decryptedBytes => {
-      segment.bytes = decryptedBytes;
-      handleSegmentBytes({
-        segment,
-        bytes: segment.bytes,
-        trackInfoFn,
-        timingInfoFn,
-        videoSegmentTimingInfoFn,
-        audioSegmentTimingInfoFn,
-        id3Fn,
-        captionsFn,
-        isEndOfTimeline,
-        endedTimelineFn,
-        dataFn,
-        doneFn,
-        onTransmuxerLog
-      });
-    });
-  };
-  /**
-   * This function waits for all XHRs to finish (with either success or failure)
-   * before continueing processing via it's callback. The function gathers errors
-   * from each request into a single errors array so that the error status for
-   * each request can be examined later.
-   *
-   * @param {Object} activeXhrs - an object that tracks all XHR requests
-   * @param {WebWorker} decryptionWorker - a WebWorker interface to AES-128 decryption
-   *                                       routines
-   * @param {Function} trackInfoFn - a callback that receives track info
-   * @param {Function} timingInfoFn - a callback that receives timing info
-   * @param {Function} videoSegmentTimingInfoFn
-   *                   a callback that receives video timing info based on media times and
-   *                   any adjustments made by the transmuxer
-   * @param {Function} audioSegmentTimingInfoFn
-   *                   a callback that receives audio timing info based on media times and
-   *                   any adjustments made by the transmuxer
-   * @param {Function} id3Fn - a callback that receives ID3 metadata
-   * @param {Function} captionsFn - a callback that receives captions
-   * @param {boolean}  isEndOfTimeline
-   *                   true if this segment represents the last segment in a timeline
-   * @param {Function} endedTimelineFn
-   *                   a callback made when a timeline is ended, will only be called if
-   *                   isEndOfTimeline is true
-   * @param {Function} dataFn - a callback that is executed when segment bytes are available
-   *                            and ready to use
-   * @param {Function} doneFn - a callback that is executed after all resources have been
-   *                            downloaded and any decryption completed
-   */
-
-  const waitForCompletion = ({
-    activeXhrs,
-    decryptionWorker,
-    trackInfoFn,
-    timingInfoFn,
-    videoSegmentTimingInfoFn,
-    audioSegmentTimingInfoFn,
-    id3Fn,
-    captionsFn,
-    isEndOfTimeline,
-    endedTimelineFn,
-    dataFn,
-    doneFn,
-    onTransmuxerLog
-  }) => {
-    let count = 0;
-    let didError = false;
-    return (error, segment) => {
-      if (didError) {
-        return;
-      }
-      if (error) {
-        didError = true; // If there are errors, we have to abort any outstanding requests
-
-        abortAll(activeXhrs); // Even though the requests above are aborted, and in theory we could wait until we
-        // handle the aborted events from those requests, there are some cases where we may
-        // never get an aborted event. For instance, if the network connection is lost and
-        // there were two requests, the first may have triggered an error immediately, while
-        // the second request remains unsent. In that case, the aborted algorithm will not
-        // trigger an abort: see https://xhr.spec.whatwg.org/#the-abort()-method
-        //
-        // We also can't rely on the ready state of the XHR, since the request that
-        // triggered the connection error may also show as a ready state of 0 (unsent).
-        // Therefore, we have to finish this group of requests immediately after the first
-        // seen error.
-
-        return doneFn(error, segment);
-      }
-      count += 1;
-      if (count === activeXhrs.length) {
-        const segmentFinish = function () {
-          if (segment.encryptedBytes) {
-            return decryptSegment({
-              decryptionWorker,
-              segment,
-              trackInfoFn,
-              timingInfoFn,
-              videoSegmentTimingInfoFn,
-              audioSegmentTimingInfoFn,
-              id3Fn,
-              captionsFn,
-              isEndOfTimeline,
-              endedTimelineFn,
-              dataFn,
-              doneFn,
-              onTransmuxerLog
-            });
-          } // Otherwise, everything is ready just continue
-
-          handleSegmentBytes({
-            segment,
-            bytes: segment.bytes,
-            trackInfoFn,
-            timingInfoFn,
-            videoSegmentTimingInfoFn,
-            audioSegmentTimingInfoFn,
-            id3Fn,
-            captionsFn,
-            isEndOfTimeline,
-            endedTimelineFn,
-            dataFn,
-            doneFn,
-            onTransmuxerLog
-          });
-        }; // Keep track of when *all* of the requests have completed
-
-        segment.endOfAllRequests = Date.now();
-        if (segment.map && segment.map.encryptedBytes && !segment.map.bytes) {
-          return decrypt({
-            decryptionWorker,
-            // add -init to the "id" to differentiate between segment
-            // and init segment decryption, just in case they happen
-            // at the same time at some point in the future.
-            id: segment.requestId + '-init',
-            encryptedBytes: segment.map.encryptedBytes,
-            key: segment.map.key
-          }, decryptedBytes => {
-            segment.map.bytes = decryptedBytes;
-            parseInitSegment(segment, parseError => {
-              if (parseError) {
-                abortAll(activeXhrs);
-                return doneFn(parseError, segment);
-              }
-              segmentFinish();
-            });
-          });
-        }
-        segmentFinish();
-      }
-    };
-  };
-  /**
-   * Calls the abort callback if any request within the batch was aborted. Will only call
-   * the callback once per batch of requests, even if multiple were aborted.
-   *
-   * @param {Object} loadendState - state to check to see if the abort function was called
-   * @param {Function} abortFn - callback to call for abort
-   */
-
-  const handleLoadEnd = ({
-    loadendState,
-    abortFn
-  }) => event => {
-    const request = event.target;
-    if (request.aborted && abortFn && !loadendState.calledAbortFn) {
-      abortFn();
-      loadendState.calledAbortFn = true;
-    }
-  };
-  /**
-   * Simple progress event callback handler that gathers some stats before
-   * executing a provided callback with the `segment` object
-   *
-   * @param {Object} segment - a simplified copy of the segmentInfo object
-   *                           from SegmentLoader
-   * @param {Function} progressFn - a callback that is executed each time a progress event
-   *                                is received
-   * @param {Function} trackInfoFn - a callback that receives track info
-   * @param {Function} timingInfoFn - a callback that receives timing info
-   * @param {Function} videoSegmentTimingInfoFn
-   *                   a callback that receives video timing info based on media times and
-   *                   any adjustments made by the transmuxer
-   * @param {Function} audioSegmentTimingInfoFn
-   *                   a callback that receives audio timing info based on media times and
-   *                   any adjustments made by the transmuxer
-   * @param {boolean}  isEndOfTimeline
-   *                   true if this segment represents the last segment in a timeline
-   * @param {Function} endedTimelineFn
-   *                   a callback made when a timeline is ended, will only be called if
-   *                   isEndOfTimeline is true
-   * @param {Function} dataFn - a callback that is executed when segment bytes are available
-   *                            and ready to use
-   * @param {Event} event - the progress event object from XMLHttpRequest
-   */
-
-  const handleProgress = ({
-    segment,
-    progressFn,
-    trackInfoFn,
-    timingInfoFn,
-    videoSegmentTimingInfoFn,
-    audioSegmentTimingInfoFn,
-    id3Fn,
-    captionsFn,
-    isEndOfTimeline,
-    endedTimelineFn,
-    dataFn
-  }) => event => {
-    const request = event.target;
-    if (request.aborted) {
-      return;
-    }
-    segment.stats = merge(segment.stats, getProgressStats(event)); // record the time that we receive the first byte of data
-
-    if (!segment.stats.firstBytesReceivedAt && segment.stats.bytesReceived) {
-      segment.stats.firstBytesReceivedAt = Date.now();
-    }
-    return progressFn(event, segment);
-  };
-  /**
-   * Load all resources and does any processing necessary for a media-segment
-   *
-   * Features:
-   *   decrypts the media-segment if it has a key uri and an iv
-   *   aborts *all* requests if *any* one request fails
-   *
-   * The segment object, at minimum, has the following format:
-   * {
-   *   resolvedUri: String,
-   *   [transmuxer]: Object,
-   *   [byterange]: {
-   *     offset: Number,
-   *     length: Number
-   *   },
-   *   [key]: {
-   *     resolvedUri: String
-   *     [byterange]: {
-   *       offset: Number,
-   *       length: Number
-   *     },
-   *     iv: {
-   *       bytes: Uint32Array
-   *     }
-   *   },
-   *   [map]: {
-   *     resolvedUri: String,
-   *     [byterange]: {
-   *       offset: Number,
-   *       length: Number
-   *     },
-   *     [bytes]: Uint8Array
-   *   }
-   * }
-   * ...where [name] denotes optional properties
-   *
-   * @param {Function} xhr - an instance of the xhr wrapper in xhr.js
-   * @param {Object} xhrOptions - the base options to provide to all xhr requests
-   * @param {WebWorker} decryptionWorker - a WebWorker interface to AES-128
-   *                                       decryption routines
-   * @param {Object} segment - a simplified copy of the segmentInfo object
-   *                           from SegmentLoader
-   * @param {Function} abortFn - a callback called (only once) if any piece of a request was
-   *                             aborted
-   * @param {Function} progressFn - a callback that receives progress events from the main
-   *                                segment's xhr request
-   * @param {Function} trackInfoFn - a callback that receives track info
-   * @param {Function} timingInfoFn - a callback that receives timing info
-   * @param {Function} videoSegmentTimingInfoFn
-   *                   a callback that receives video timing info based on media times and
-   *                   any adjustments made by the transmuxer
-   * @param {Function} audioSegmentTimingInfoFn
-   *                   a callback that receives audio timing info based on media times and
-   *                   any adjustments made by the transmuxer
-   * @param {Function} id3Fn - a callback that receives ID3 metadata
-   * @param {Function} captionsFn - a callback that receives captions
-   * @param {boolean}  isEndOfTimeline
-   *                   true if this segment represents the last segment in a timeline
-   * @param {Function} endedTimelineFn
-   *                   a callback made when a timeline is ended, will only be called if
-   *                   isEndOfTimeline is true
-   * @param {Function} dataFn - a callback that receives data from the main segment's xhr
-   *                            request, transmuxed if needed
-   * @param {Function} doneFn - a callback that is executed only once all requests have
-   *                            succeeded or failed
-   * @return {Function} a function that, when invoked, immediately aborts all
-   *                     outstanding requests
-   */
-
-  const mediaSegmentRequest = ({
-    xhr,
-    xhrOptions,
-    decryptionWorker,
-    segment,
-    abortFn,
-    progressFn,
-    trackInfoFn,
-    timingInfoFn,
-    videoSegmentTimingInfoFn,
-    audioSegmentTimingInfoFn,
-    id3Fn,
-    captionsFn,
-    isEndOfTimeline,
-    endedTimelineFn,
-    dataFn,
-    doneFn,
-    onTransmuxerLog
-  }) => {
-    const activeXhrs = [];
-    const finishProcessingFn = waitForCompletion({
-      activeXhrs,
-      decryptionWorker,
-      trackInfoFn,
-      timingInfoFn,
-      videoSegmentTimingInfoFn,
-      audioSegmentTimingInfoFn,
-      id3Fn,
-      captionsFn,
-      isEndOfTimeline,
-      endedTimelineFn,
-      dataFn,
-      doneFn,
-      onTransmuxerLog
-    }); // optionally, request the decryption key
-
-    if (segment.key && !segment.key.bytes) {
-      const objects = [segment.key];
-      if (segment.map && !segment.map.bytes && segment.map.key && segment.map.key.resolvedUri === segment.key.resolvedUri) {
-        objects.push(segment.map.key);
-      }
-      const keyRequestOptions = merge(xhrOptions, {
-        uri: segment.key.resolvedUri,
-        responseType: 'arraybuffer',
-        requestType: 'segment-key'
-      });
-      const keyRequestCallback = handleKeyResponse(segment, objects, finishProcessingFn);
-      const keyXhr = xhr(keyRequestOptions, keyRequestCallback);
-      activeXhrs.push(keyXhr);
-    } // optionally, request the associated media init segment
-
-    if (segment.map && !segment.map.bytes) {
-      const differentMapKey = segment.map.key && (!segment.key || segment.key.resolvedUri !== segment.map.key.resolvedUri);
-      if (differentMapKey) {
-        const mapKeyRequestOptions = merge(xhrOptions, {
-          uri: segment.map.key.resolvedUri,
-          responseType: 'arraybuffer',
-          requestType: 'segment-key'
-        });
-        const mapKeyRequestCallback = handleKeyResponse(segment, [segment.map.key], finishProcessingFn);
-        const mapKeyXhr = xhr(mapKeyRequestOptions, mapKeyRequestCallback);
-        activeXhrs.push(mapKeyXhr);
-      }
-      const initSegmentOptions = merge(xhrOptions, {
-        uri: segment.map.resolvedUri,
-        responseType: 'arraybuffer',
-        headers: segmentXhrHeaders(segment.map),
-        requestType: 'segment-media-initialization'
-      });
-      const initSegmentRequestCallback = handleInitSegmentResponse({
-        segment,
-        finishProcessingFn
-      });
-      const initSegmentXhr = xhr(initSegmentOptions, initSegmentRequestCallback);
-      activeXhrs.push(initSegmentXhr);
-    }
-    const segmentRequestOptions = merge(xhrOptions, {
-      uri: segment.part && segment.part.resolvedUri || segment.resolvedUri,
-      responseType: 'arraybuffer',
-      headers: segmentXhrHeaders(segment),
-      requestType: 'segment'
-    });
-    const segmentRequestCallback = handleSegmentResponse({
-      segment,
-      finishProcessingFn,
-      responseType: segmentRequestOptions.responseType
-    });
-    const segmentXhr = xhr(segmentRequestOptions, segmentRequestCallback);
-    segmentXhr.addEventListener('progress', handleProgress({
-      segment,
-      progressFn,
-      trackInfoFn,
-      timingInfoFn,
-      videoSegmentTimingInfoFn,
-      audioSegmentTimingInfoFn,
-      id3Fn,
-      captionsFn,
-      isEndOfTimeline,
-      endedTimelineFn,
-      dataFn
-    }));
-    activeXhrs.push(segmentXhr); // since all parts of the request must be considered, but should not make callbacks
-    // multiple times, provide a shared state object
-
-    const loadendState = {};
-    activeXhrs.forEach(activeXhr => {
-      activeXhr.addEventListener('loadend', handleLoadEnd({
-        loadendState,
-        abortFn
-      }));
-    });
-    return () => abortAll(activeXhrs);
-  };
-
-  /**
-   * @file - codecs.js - Handles tasks regarding codec strings such as translating them to
-   * codec strings, or translating codec strings into objects that can be examined.
-   */
-  const logFn$1 = logger('CodecUtils');
-  /**
-   * Returns a set of codec strings parsed from the playlist or the default
-   * codec strings if no codecs were specified in the playlist
-   *
-   * @param {Playlist} media the current media playlist
-   * @return {Object} an object with the video and audio codecs
-   */
-
-  const getCodecs = function (media) {
-    // if the codecs were explicitly specified, use them instead of the
-    // defaults
-    const mediaAttributes = media.attributes || {};
-    if (mediaAttributes.CODECS) {
-      return parseCodecs(mediaAttributes.CODECS);
-    }
-  };
-  const isMaat = (main, media) => {
-    const mediaAttributes = media.attributes || {};
-    return main && main.mediaGroups && main.mediaGroups.AUDIO && mediaAttributes.AUDIO && main.mediaGroups.AUDIO[mediaAttributes.AUDIO];
-  };
-  const isMuxed = (main, media) => {
-    if (!isMaat(main, media)) {
-      return true;
-    }
-    const mediaAttributes = media.attributes || {};
-    const audioGroup = main.mediaGroups.AUDIO[mediaAttributes.AUDIO];
-    for (const groupId in audioGroup) {
-      // If an audio group has a URI (the case for HLS, as HLS will use external playlists),
-      // or there are listed playlists (the case for DASH, as the manifest will have already
-      // provided all of the details necessary to generate the audio playlist, as opposed to
-      // HLS' externally requested playlists), then the content is demuxed.
-      if (!audioGroup[groupId].uri && !audioGroup[groupId].playlists) {
-        return true;
-      }
-    }
-    return false;
-  };
-  const unwrapCodecList = function (codecList) {
-    const codecs = {};
-    codecList.forEach(({
-      mediaType,
-      type,
-      details
-    }) => {
-      codecs[mediaType] = codecs[mediaType] || [];
-      codecs[mediaType].push(translateLegacyCodec(`${type}${details}`));
-    });
-    Object.keys(codecs).forEach(function (mediaType) {
-      if (codecs[mediaType].length > 1) {
-        logFn$1(`multiple ${mediaType} codecs found as attributes: ${codecs[mediaType].join(', ')}. Setting playlist codecs to null so that we wait for mux.js to probe segments for real codecs.`);
-        codecs[mediaType] = null;
-        return;
-      }
-      codecs[mediaType] = codecs[mediaType][0];
-    });
-    return codecs;
-  };
-  const codecCount = function (codecObj) {
-    let count = 0;
-    if (codecObj.audio) {
-      count++;
-    }
-    if (codecObj.video) {
-      count++;
-    }
-    return count;
-  };
-  /**
-   * Calculates the codec strings for a working configuration of
-   * SourceBuffers to play variant streams in a main playlist. If
-   * there is no possible working configuration, an empty object will be
-   * returned.
-   *
-   * @param main {Object} the m3u8 object for the main playlist
-   * @param media {Object} the m3u8 object for the variant playlist
-   * @return {Object} the codec strings.
-   *
-   * @private
-   */
-
-  const codecsForPlaylist = function (main, media) {
-    const mediaAttributes = media.attributes || {};
-    const codecInfo = unwrapCodecList(getCodecs(media) || []); // HLS with multiple-audio tracks must always get an audio codec.
-    // Put another way, there is no way to have a video-only multiple-audio HLS!
-
-    if (isMaat(main, media) && !codecInfo.audio) {
-      if (!isMuxed(main, media)) {
-        // It is possible for codecs to be specified on the audio media group playlist but
-        // not on the rendition playlist. This is mostly the case for DASH, where audio and
-        // video are always separate (and separately specified).
-        const defaultCodecs = unwrapCodecList(codecsFromDefault(main, mediaAttributes.AUDIO) || []);
-        if (defaultCodecs.audio) {
-          codecInfo.audio = defaultCodecs.audio;
-        }
-      }
-    }
-    return codecInfo;
-  };
-  const logFn = logger('PlaylistSelector');
-  const representationToString = function (representation) {
-    if (!representation || !representation.playlist) {
-      return;
-    }
-    const playlist = representation.playlist;
-    return JSON.stringify({
-      id: playlist.id,
-      bandwidth: representation.bandwidth,
-      width: representation.width,
-      height: representation.height,
-      codecs: playlist.attributes && playlist.attributes.CODECS || ''
-    });
-  }; // Utilities
-
-  /**
-   * Returns the CSS value for the specified property on an element
-   * using `getComputedStyle`. Firefox has a long-standing issue where
-   * getComputedStyle() may return null when running in an iframe with
-   * `display: none`.
-   *
-   * @see https://bugzilla.mozilla.org/show_bug.cgi?id=548397
-   * @param {HTMLElement} el the htmlelement to work on
-   * @param {string} the proprety to get the style for
-   */
-
-  const safeGetComputedStyle = function (el, property) {
-    if (!el) {
-      return '';
-    }
-    const result = window.getComputedStyle(el);
-    if (!result) {
-      return '';
-    }
-    return result[property];
-  };
-  /**
-   * Resuable stable sort function
-   *
-   * @param {Playlists} array
-   * @param {Function} sortFn Different comparators
-   * @function stableSort
-   */
-
-  const stableSort = function (array, sortFn) {
-    const newArray = array.slice();
-    array.sort(function (left, right) {
-      const cmp = sortFn(left, right);
-      if (cmp === 0) {
-        return newArray.indexOf(left) - newArray.indexOf(right);
-      }
-      return cmp;
-    });
-  };
-  /**
-   * A comparator function to sort two playlist object by bandwidth.
-   *
-   * @param {Object} left a media playlist object
-   * @param {Object} right a media playlist object
-   * @return {number} Greater than zero if the bandwidth attribute of
-   * left is greater than the corresponding attribute of right. Less
-   * than zero if the bandwidth of right is greater than left and
-   * exactly zero if the two are equal.
-   */
-
-  const comparePlaylistBandwidth = function (left, right) {
-    let leftBandwidth;
-    let rightBandwidth;
-    if (left.attributes.BANDWIDTH) {
-      leftBandwidth = left.attributes.BANDWIDTH;
-    }
-    leftBandwidth = leftBandwidth || window.Number.MAX_VALUE;
-    if (right.attributes.BANDWIDTH) {
-      rightBandwidth = right.attributes.BANDWIDTH;
-    }
-    rightBandwidth = rightBandwidth || window.Number.MAX_VALUE;
-    return leftBandwidth - rightBandwidth;
-  };
-  /**
-   * A comparator function to sort two playlist object by resolution (width).
-   *
-   * @param {Object} left a media playlist object
-   * @param {Object} right a media playlist object
-   * @return {number} Greater than zero if the resolution.width attribute of
-   * left is greater than the corresponding attribute of right. Less
-   * than zero if the resolution.width of right is greater than left and
-   * exactly zero if the two are equal.
-   */
-
-  const comparePlaylistResolution = function (left, right) {
-    let leftWidth;
-    let rightWidth;
-    if (left.attributes.RESOLUTION && left.attributes.RESOLUTION.width) {
-      leftWidth = left.attributes.RESOLUTION.width;
-    }
-    leftWidth = leftWidth || window.Number.MAX_VALUE;
-    if (right.attributes.RESOLUTION && right.attributes.RESOLUTION.width) {
-      rightWidth = right.attributes.RESOLUTION.width;
-    }
-    rightWidth = rightWidth || window.Number.MAX_VALUE; // NOTE - Fallback to bandwidth sort as appropriate in cases where multiple renditions
-    // have the same media dimensions/ resolution
-
-    if (leftWidth === rightWidth && left.attributes.BANDWIDTH && right.attributes.BANDWIDTH) {
-      return left.attributes.BANDWIDTH - right.attributes.BANDWIDTH;
-    }
-    return leftWidth - rightWidth;
-  };
-  /**
-   * Chooses the appropriate media playlist based on bandwidth and player size
-   *
-   * @param {Object} main
-   *        Object representation of the main manifest
-   * @param {number} playerBandwidth
-   *        Current calculated bandwidth of the player
-   * @param {number} playerWidth
-   *        Current width of the player element (should account for the device pixel ratio)
-   * @param {number} playerHeight
-   *        Current height of the player element (should account for the device pixel ratio)
-   * @param {boolean} limitRenditionByPlayerDimensions
-   *        True if the player width and height should be used during the selection, false otherwise
-   * @param {Object} playlistController
-   *        the current playlistController object
-   * @return {Playlist} the highest bitrate playlist less than the
-   * currently detected bandwidth, accounting for some amount of
-   * bandwidth variance
-   */
-
-  let simpleSelector = function (main, playerBandwidth, playerWidth, playerHeight, limitRenditionByPlayerDimensions, playlistController) {
-    // If we end up getting called before `main` is available, exit early
-    if (!main) {
-      return;
-    }
-    const options = {
-      bandwidth: playerBandwidth,
-      width: playerWidth,
-      height: playerHeight,
-      limitRenditionByPlayerDimensions
-    };
-    let playlists = main.playlists; // if playlist is audio only, select between currently active audio group playlists.
-
-    if (Playlist.isAudioOnly(main)) {
-      playlists = playlistController.getAudioTrackPlaylists_(); // add audioOnly to options so that we log audioOnly: true
-      // at the buttom of this function for debugging.
-
-      options.audioOnly = true;
-    } // convert the playlists to an intermediary representation to make comparisons easier
-
-    let sortedPlaylistReps = playlists.map(playlist => {
-      let bandwidth;
-      const width = playlist.attributes && playlist.attributes.RESOLUTION && playlist.attributes.RESOLUTION.width;
-      const height = playlist.attributes && playlist.attributes.RESOLUTION && playlist.attributes.RESOLUTION.height;
-      bandwidth = playlist.attributes && playlist.attributes.BANDWIDTH;
-      bandwidth = bandwidth || window.Number.MAX_VALUE;
-      return {
-        bandwidth,
-        width,
-        height,
-        playlist
-      };
-    });
-    stableSort(sortedPlaylistReps, (left, right) => left.bandwidth - right.bandwidth); // filter out any playlists that have been excluded due to
-    // incompatible configurations
-
-    sortedPlaylistReps = sortedPlaylistReps.filter(rep => !Playlist.isIncompatible(rep.playlist)); // filter out any playlists that have been disabled manually through the representations
-    // api or excluded temporarily due to playback errors.
-
-    let enabledPlaylistReps = sortedPlaylistReps.filter(rep => Playlist.isEnabled(rep.playlist));
-    if (!enabledPlaylistReps.length) {
-      // if there are no enabled playlists, then they have all been excluded or disabled
-      // by the user through the representations api. In this case, ignore exclusion and
-      // fallback to what the user wants by using playlists the user has not disabled.
-      enabledPlaylistReps = sortedPlaylistReps.filter(rep => !Playlist.isDisabled(rep.playlist));
-    } // filter out any variant that has greater effective bitrate
-    // than the current estimated bandwidth
-
-    const bandwidthPlaylistReps = enabledPlaylistReps.filter(rep => rep.bandwidth * Config.BANDWIDTH_VARIANCE < playerBandwidth);
-    let highestRemainingBandwidthRep = bandwidthPlaylistReps[bandwidthPlaylistReps.length - 1]; // get all of the renditions with the same (highest) bandwidth
-    // and then taking the very first element
-
-    const bandwidthBestRep = bandwidthPlaylistReps.filter(rep => rep.bandwidth === highestRemainingBandwidthRep.bandwidth)[0]; // if we're not going to limit renditions by player size, make an early decision.
-
-    if (limitRenditionByPlayerDimensions === false) {
-      const chosenRep = bandwidthBestRep || enabledPlaylistReps[0] || sortedPlaylistReps[0];
-      if (chosenRep && chosenRep.playlist) {
-        let type = 'sortedPlaylistReps';
-        if (bandwidthBestRep) {
-          type = 'bandwidthBestRep';
-        }
-        if (enabledPlaylistReps[0]) {
-          type = 'enabledPlaylistReps';
-        }
-        logFn(`choosing ${representationToString(chosenRep)} using ${type} with options`, options);
-        return chosenRep.playlist;
-      }
-      logFn('could not choose a playlist with options', options);
-      return null;
-    } // filter out playlists without resolution information
-
-    const haveResolution = bandwidthPlaylistReps.filter(rep => rep.width && rep.height); // sort variants by resolution
-
-    stableSort(haveResolution, (left, right) => left.width - right.width); // if we have the exact resolution as the player use it
-
-    const resolutionBestRepList = haveResolution.filter(rep => rep.width === playerWidth && rep.height === playerHeight);
-    highestRemainingBandwidthRep = resolutionBestRepList[resolutionBestRepList.length - 1]; // ensure that we pick the highest bandwidth variant that have exact resolution
-
-    const resolutionBestRep = resolutionBestRepList.filter(rep => rep.bandwidth === highestRemainingBandwidthRep.bandwidth)[0];
-    let resolutionPlusOneList;
-    let resolutionPlusOneSmallest;
-    let resolutionPlusOneRep; // find the smallest variant that is larger than the player
-    // if there is no match of exact resolution
-
-    if (!resolutionBestRep) {
-      resolutionPlusOneList = haveResolution.filter(rep => rep.width > playerWidth || rep.height > playerHeight); // find all the variants have the same smallest resolution
-
-      resolutionPlusOneSmallest = resolutionPlusOneList.filter(rep => rep.width === resolutionPlusOneList[0].width && rep.height === resolutionPlusOneList[0].height); // ensure that we also pick the highest bandwidth variant that
-      // is just-larger-than the video player
-
-      highestRemainingBandwidthRep = resolutionPlusOneSmallest[resolutionPlusOneSmallest.length - 1];
-      resolutionPlusOneRep = resolutionPlusOneSmallest.filter(rep => rep.bandwidth === highestRemainingBandwidthRep.bandwidth)[0];
-    }
-    let leastPixelDiffRep; // If this selector proves to be better than others,
-    // resolutionPlusOneRep and resolutionBestRep and all
-    // the code involving them should be removed.
-
-    if (playlistController.leastPixelDiffSelector) {
-      // find the variant that is closest to the player's pixel size
-      const leastPixelDiffList = haveResolution.map(rep => {
-        rep.pixelDiff = Math.abs(rep.width - playerWidth) + Math.abs(rep.height - playerHeight);
-        return rep;
-      }); // get the highest bandwidth, closest resolution playlist
-
-      stableSort(leastPixelDiffList, (left, right) => {
-        // sort by highest bandwidth if pixelDiff is the same
-        if (left.pixelDiff === right.pixelDiff) {
-          return right.bandwidth - left.bandwidth;
-        }
-        return left.pixelDiff - right.pixelDiff;
-      });
-      leastPixelDiffRep = leastPixelDiffList[0];
-    } // fallback chain of variants
-
-    const chosenRep = leastPixelDiffRep || resolutionPlusOneRep || resolutionBestRep || bandwidthBestRep || enabledPlaylistReps[0] || sortedPlaylistReps[0];
-    if (chosenRep && chosenRep.playlist) {
-      let type = 'sortedPlaylistReps';
-      if (leastPixelDiffRep) {
-        type = 'leastPixelDiffRep';
-      } else if (resolutionPlusOneRep) {
-        type = 'resolutionPlusOneRep';
-      } else if (resolutionBestRep) {
-        type = 'resolutionBestRep';
-      } else if (bandwidthBestRep) {
-        type = 'bandwidthBestRep';
-      } else if (enabledPlaylistReps[0]) {
-        type = 'enabledPlaylistReps';
-      }
-      logFn(`choosing ${representationToString(chosenRep)} using ${type} with options`, options);
-      return chosenRep.playlist;
-    }
-    logFn('could not choose a playlist with options', options);
-    return null;
-  };
-
-  /**
-   * Chooses the appropriate media playlist based on the most recent
-   * bandwidth estimate and the player size.
-   *
-   * Expects to be called within the context of an instance of VhsHandler
-   *
-   * @return {Playlist} the highest bitrate playlist less than the
-   * currently detected bandwidth, accounting for some amount of
-   * bandwidth variance
-   */
-
-  const lastBandwidthSelector = function () {
-    let pixelRatio = this.useDevicePixelRatio ? window.devicePixelRatio || 1 : 1;
-    if (!isNaN(this.customPixelRatio)) {
-      pixelRatio = this.customPixelRatio;
-    }
-    return simpleSelector(this.playlists.main, this.systemBandwidth, parseInt(safeGetComputedStyle(this.tech_.el(), 'width'), 10) * pixelRatio, parseInt(safeGetComputedStyle(this.tech_.el(), 'height'), 10) * pixelRatio, this.limitRenditionByPlayerDimensions, this.playlistController_);
-  };
-  /**
-   * Chooses the appropriate media playlist based on an
-   * exponential-weighted moving average of the bandwidth after
-   * filtering for player size.
-   *
-   * Expects to be called within the context of an instance of VhsHandler
-   *
-   * @param {number} decay - a number between 0 and 1. Higher values of
-   * this parameter will cause previous bandwidth estimates to lose
-   * significance more quickly.
-   * @return {Function} a function which can be invoked to create a new
-   * playlist selector function.
-   * @see https://en.wikipedia.org/wiki/Moving_average#Exponential_moving_average
-   */
-
-  const movingAverageBandwidthSelector = function (decay) {
-    let average = -1;
-    let lastSystemBandwidth = -1;
-    if (decay < 0 || decay > 1) {
-      throw new Error('Moving average bandwidth decay must be between 0 and 1.');
-    }
-    return function () {
-      let pixelRatio = this.useDevicePixelRatio ? window.devicePixelRatio || 1 : 1;
-      if (!isNaN(this.customPixelRatio)) {
-        pixelRatio = this.customPixelRatio;
-      }
-      if (average < 0) {
-        average = this.systemBandwidth;
-        lastSystemBandwidth = this.systemBandwidth;
-      } // stop the average value from decaying for every 250ms
-      // when the systemBandwidth is constant
-      // and
-      // stop average from setting to a very low value when the
-      // systemBandwidth becomes 0 in case of chunk cancellation
-
-      if (this.systemBandwidth > 0 && this.systemBandwidth !== lastSystemBandwidth) {
-        average = decay * this.systemBandwidth + (1 - decay) * average;
-        lastSystemBandwidth = this.systemBandwidth;
-      }
-      return simpleSelector(this.playlists.main, average, parseInt(safeGetComputedStyle(this.tech_.el(), 'width'), 10) * pixelRatio, parseInt(safeGetComputedStyle(this.tech_.el(), 'height'), 10) * pixelRatio, this.limitRenditionByPlayerDimensions, this.playlistController_);
-    };
-  };
-  /**
-   * Chooses the appropriate media playlist based on the potential to rebuffer
-   *
-   * @param {Object} settings
-   *        Object of information required to use this selector
-   * @param {Object} settings.main
-   *        Object representation of the main manifest
-   * @param {number} settings.currentTime
-   *        The current time of the player
-   * @param {number} settings.bandwidth
-   *        Current measured bandwidth
-   * @param {number} settings.duration
-   *        Duration of the media
-   * @param {number} settings.segmentDuration
-   *        Segment duration to be used in round trip time calculations
-   * @param {number} settings.timeUntilRebuffer
-   *        Time left in seconds until the player has to rebuffer
-   * @param {number} settings.currentTimeline
-   *        The current timeline segments are being loaded from
-   * @param {SyncController} settings.syncController
-   *        SyncController for determining if we have a sync point for a given playlist
-   * @return {Object|null}
-   *         {Object} return.playlist
-   *         The highest bandwidth playlist with the least amount of rebuffering
-   *         {Number} return.rebufferingImpact
-   *         The amount of time in seconds switching to this playlist will rebuffer. A
-   *         negative value means that switching will cause zero rebuffering.
-   */
-
-  const minRebufferMaxBandwidthSelector = function (settings) {
-    const {
-      main,
-      currentTime,
-      bandwidth,
-      duration,
-      segmentDuration,
-      timeUntilRebuffer,
-      currentTimeline,
-      syncController
-    } = settings; // filter out any playlists that have been excluded due to
-    // incompatible configurations
-
-    const compatiblePlaylists = main.playlists.filter(playlist => !Playlist.isIncompatible(playlist)); // filter out any playlists that have been disabled manually through the representations
-    // api or excluded temporarily due to playback errors.
-
-    let enabledPlaylists = compatiblePlaylists.filter(Playlist.isEnabled);
-    if (!enabledPlaylists.length) {
-      // if there are no enabled playlists, then they have all been excluded or disabled
-      // by the user through the representations api. In this case, ignore exclusion and
-      // fallback to what the user wants by using playlists the user has not disabled.
-      enabledPlaylists = compatiblePlaylists.filter(playlist => !Playlist.isDisabled(playlist));
-    }
-    const bandwidthPlaylists = enabledPlaylists.filter(Playlist.hasAttribute.bind(null, 'BANDWIDTH'));
-    const rebufferingEstimates = bandwidthPlaylists.map(playlist => {
-      const syncPoint = syncController.getSyncPoint(playlist, duration, currentTimeline, currentTime); // If there is no sync point for this playlist, switching to it will require a
-      // sync request first. This will double the request time
-
-      const numRequests = syncPoint ? 1 : 2;
-      const requestTimeEstimate = Playlist.estimateSegmentRequestTime(segmentDuration, bandwidth, playlist);
-      const rebufferingImpact = requestTimeEstimate * numRequests - timeUntilRebuffer;
-      return {
-        playlist,
-        rebufferingImpact
-      };
-    });
-    const noRebufferingPlaylists = rebufferingEstimates.filter(estimate => estimate.rebufferingImpact <= 0); // Sort by bandwidth DESC
-
-    stableSort(noRebufferingPlaylists, (a, b) => comparePlaylistBandwidth(b.playlist, a.playlist));
-    if (noRebufferingPlaylists.length) {
-      return noRebufferingPlaylists[0];
-    }
-    stableSort(rebufferingEstimates, (a, b) => a.rebufferingImpact - b.rebufferingImpact);
-    return rebufferingEstimates[0] || null;
-  };
-  /**
-   * Chooses the appropriate media playlist, which in this case is the lowest bitrate
-   * one with video.  If no renditions with video exist, return the lowest audio rendition.
-   *
-   * Expects to be called within the context of an instance of VhsHandler
-   *
-   * @return {Object|null}
-   *         {Object} return.playlist
-   *         The lowest bitrate playlist that contains a video codec.  If no such rendition
-   *         exists pick the lowest audio rendition.
-   */
-
-  const lowestBitrateCompatibleVariantSelector = function () {
-    // filter out any playlists that have been excluded due to
-    // incompatible configurations or playback errors
-    const playlists = this.playlists.main.playlists.filter(Playlist.isEnabled); // Sort ascending by bitrate
-
-    stableSort(playlists, (a, b) => comparePlaylistBandwidth(a, b)); // Parse and assume that playlists with no video codec have no video
-    // (this is not necessarily true, although it is generally true).
-    //
-    // If an entire manifest has no valid videos everything will get filtered
-    // out.
-
-    const playlistsWithVideo = playlists.filter(playlist => !!codecsForPlaylist(this.playlists.main, playlist).video);
-    return playlistsWithVideo[0] || null;
-  };
-
-  /**
-   * Combine all segments into a single Uint8Array
-   *
-   * @param {Object} segmentObj
-   * @return {Uint8Array} concatenated bytes
-   * @private
-   */
-  const concatSegments = segmentObj => {
-    let offset = 0;
-    let tempBuffer;
-    if (segmentObj.bytes) {
-      tempBuffer = new Uint8Array(segmentObj.bytes); // combine the individual segments into one large typed-array
-
-      segmentObj.segments.forEach(segment => {
-        tempBuffer.set(segment, offset);
-        offset += segment.byteLength;
-      });
-    }
-    return tempBuffer;
-  };
-  /**
-   * Example:
-   * https://host.com/path1/path2/path3/segment.ts?arg1=val1
-   * -->
-   * path3/segment.ts
-   *
-   * @param resolvedUri
-   * @return {string}
-   */
-
-  function compactSegmentUrlDescription(resolvedUri) {
-    try {
-      return new URL(resolvedUri).pathname.split('/').slice(-2).join('/');
-    } catch (e) {
-      return '';
-    }
-  }
-
-  /**
-   * @file text-tracks.js
-   */
-  /**
-   * Create captions text tracks on video.js if they do not exist
-   *
-   * @param {Object} inbandTextTracks a reference to current inbandTextTracks
-   * @param {Object} tech the video.js tech
-   * @param {Object} captionStream the caption stream to create
-   * @private
-   */
-
-  const createCaptionsTrackIfNotExists = function (inbandTextTracks, tech, captionStream) {
-    if (!inbandTextTracks[captionStream]) {
-      tech.trigger({
-        type: 'usage',
-        name: 'vhs-608'
-      });
-      let instreamId = captionStream; // we need to translate SERVICEn for 708 to how mux.js currently labels them
-
-      if (/^cc708_/.test(captionStream)) {
-        instreamId = 'SERVICE' + captionStream.split('_')[1];
-      }
-      const track = tech.textTracks().getTrackById(instreamId);
-      if (track) {
-        // Resuse an existing track with a CC# id because this was
-        // very likely created by videojs-contrib-hls from information
-        // in the m3u8 for us to use
-        inbandTextTracks[captionStream] = track;
-      } else {
-        // This section gets called when we have caption services that aren't specified in the manifest.
-        // Manifest level caption services are handled in media-groups.js under CLOSED-CAPTIONS.
-        const captionServices = tech.options_.vhs && tech.options_.vhs.captionServices || {};
-        let label = captionStream;
-        let language = captionStream;
-        let def = false;
-        const captionService = captionServices[instreamId];
-        if (captionService) {
-          label = captionService.label;
-          language = captionService.language;
-          def = captionService.default;
-        } // Otherwise, create a track with the default `CC#` label and
-        // without a language
-
-        inbandTextTracks[captionStream] = tech.addRemoteTextTrack({
-          kind: 'captions',
-          id: instreamId,
-          // TODO: investigate why this doesn't seem to turn the caption on by default
-          default: def,
-          label,
-          language
-        }, false).track;
-      }
-    }
-  };
-  /**
-   * Add caption text track data to a source handler given an array of captions
-   *
-   * @param {Object}
-   *   @param {Object} inbandTextTracks the inband text tracks
-   *   @param {number} timestampOffset the timestamp offset of the source buffer
-   *   @param {Array} captionArray an array of caption data
-   * @private
-   */
-
-  const addCaptionData = function ({
-    inbandTextTracks,
-    captionArray,
-    timestampOffset
-  }) {
-    if (!captionArray) {
-      return;
-    }
-    const Cue = window.WebKitDataCue || window.VTTCue;
-    captionArray.forEach(caption => {
-      const track = caption.stream; // in CEA 608 captions, video.js/mux.js sends a content array
-      // with positioning data
-
-      if (caption.content) {
-        caption.content.forEach(value => {
-          const cue = new Cue(caption.startTime + timestampOffset, caption.endTime + timestampOffset, value.text);
-          cue.line = value.line;
-          cue.align = 'left';
-          cue.position = value.position;
-          cue.positionAlign = 'line-left';
-          inbandTextTracks[track].addCue(cue);
-        });
-      } else {
-        // otherwise, a text value with combined captions is sent
-        inbandTextTracks[track].addCue(new Cue(caption.startTime + timestampOffset, caption.endTime + timestampOffset, caption.text));
-      }
-    });
-  };
-  /**
-   * Define properties on a cue for backwards compatability,
-   * but warn the user that the way that they are using it
-   * is depricated and will be removed at a later date.
-   *
-   * @param {Cue} cue the cue to add the properties on
-   * @private
-   */
-
-  const deprecateOldCue = function (cue) {
-    Object.defineProperties(cue.frame, {
-      id: {
-        get() {
-          videojs.log.warn('cue.frame.id is deprecated. Use cue.value.key instead.');
-          return cue.value.key;
-        }
-      },
-      value: {
-        get() {
-          videojs.log.warn('cue.frame.value is deprecated. Use cue.value.data instead.');
-          return cue.value.data;
-        }
-      },
-      privateData: {
-        get() {
-          videojs.log.warn('cue.frame.privateData is deprecated. Use cue.value.data instead.');
-          return cue.value.data;
-        }
-      }
-    });
-  };
-  /**
-   * Add metadata text track data to a source handler given an array of metadata
-   *
-   * @param {Object}
-   *   @param {Object} inbandTextTracks the inband text tracks
-   *   @param {Array} metadataArray an array of meta data
-   *   @param {number} timestampOffset the timestamp offset of the source buffer
-   *   @param {number} videoDuration the duration of the video
-   * @private
-   */
-
-  const addMetadata = ({
-    inbandTextTracks,
-    metadataArray,
-    timestampOffset,
-    videoDuration
-  }) => {
-    if (!metadataArray) {
-      return;
-    }
-    const Cue = window.WebKitDataCue || window.VTTCue;
-    const metadataTrack = inbandTextTracks.metadataTrack_;
-    if (!metadataTrack) {
-      return;
-    }
-    metadataArray.forEach(metadata => {
-      const time = metadata.cueTime + timestampOffset; // if time isn't a finite number between 0 and Infinity, like NaN,
-      // ignore this bit of metadata.
-      // This likely occurs when you have an non-timed ID3 tag like TIT2,
-      // which is the "Title/Songname/Content description" frame
-
-      if (typeof time !== 'number' || window.isNaN(time) || time < 0 || !(time < Infinity)) {
-        return;
-      } // If we have no frames, we can't create a cue.
-
-      if (!metadata.frames || !metadata.frames.length) {
-        return;
-      }
-      metadata.frames.forEach(frame => {
-        const cue = new Cue(time, time, frame.value || frame.url || frame.data || '');
-        cue.frame = frame;
-        cue.value = frame;
-        deprecateOldCue(cue);
-        metadataTrack.addCue(cue);
-      });
-    });
-    if (!metadataTrack.cues || !metadataTrack.cues.length) {
-      return;
-    } // Updating the metadeta cues so that
-    // the endTime of each cue is the startTime of the next cue
-    // the endTime of last cue is the duration of the video
-
-    const cues = metadataTrack.cues;
-    const cuesArray = []; // Create a copy of the TextTrackCueList...
-    // ...disregarding cues with a falsey value
-
-    for (let i = 0; i < cues.length; i++) {
-      if (cues[i]) {
-        cuesArray.push(cues[i]);
-      }
-    } // Group cues by their startTime value
-
-    const cuesGroupedByStartTime = cuesArray.reduce((obj, cue) => {
-      const timeSlot = obj[cue.startTime] || [];
-      timeSlot.push(cue);
-      obj[cue.startTime] = timeSlot;
-      return obj;
-    }, {}); // Sort startTimes by ascending order
-
-    const sortedStartTimes = Object.keys(cuesGroupedByStartTime).sort((a, b) => Number(a) - Number(b)); // Map each cue group's endTime to the next group's startTime
-
-    sortedStartTimes.forEach((startTime, idx) => {
-      const cueGroup = cuesGroupedByStartTime[startTime];
-      const finiteDuration = isFinite(videoDuration) ? videoDuration : startTime;
-      const nextTime = Number(sortedStartTimes[idx + 1]) || finiteDuration; // Map each cue's endTime the next group's startTime
-
-      cueGroup.forEach(cue => {
-        cue.endTime = nextTime;
-      });
-    });
-  }; // object for mapping daterange attributes
-
-  const dateRangeAttr = {
-    id: 'ID',
-    class: 'CLASS',
-    startDate: 'START-DATE',
-    duration: 'DURATION',
-    endDate: 'END-DATE',
-    endOnNext: 'END-ON-NEXT',
-    plannedDuration: 'PLANNED-DURATION',
-    scte35Out: 'SCTE35-OUT',
-    scte35In: 'SCTE35-IN'
-  };
-  const dateRangeKeysToOmit = new Set(['id', 'class', 'startDate', 'duration', 'endDate', 'endOnNext', 'startTime', 'endTime', 'processDateRange']);
-  /**
-   * Add DateRange metadata text track to a source handler given an array of metadata
-   *
-   * @param {Object}
-   *   @param {Object} inbandTextTracks the inband text tracks
-   *   @param {Array} dateRanges parsed media playlist
-   * @private
-   */
-
-  const addDateRangeMetadata = ({
-    inbandTextTracks,
-    dateRanges
-  }) => {
-    const metadataTrack = inbandTextTracks.metadataTrack_;
-    if (!metadataTrack) {
-      return;
-    }
-    const Cue = window.WebKitDataCue || window.VTTCue;
-    dateRanges.forEach(dateRange => {
-      // we generate multiple cues for each date range with different attributes
-      for (const key of Object.keys(dateRange)) {
-        if (dateRangeKeysToOmit.has(key)) {
-          continue;
-        }
-        const cue = new Cue(dateRange.startTime, dateRange.endTime, '');
-        cue.id = dateRange.id;
-        cue.type = 'com.apple.quicktime.HLS';
-        cue.value = {
-          key: dateRangeAttr[key],
-          data: dateRange[key]
-        };
-        if (key === 'scte35Out' || key === 'scte35In') {
-          cue.value.data = new Uint8Array(cue.value.data.match(/[\da-f]{2}/gi)).buffer;
-        }
-        metadataTrack.addCue(cue);
-      }
-      dateRange.processDateRange();
-    });
-  };
-  /**
-   * Create metadata text track on video.js if it does not exist
-   *
-   * @param {Object} inbandTextTracks a reference to current inbandTextTracks
-   * @param {string} dispatchType the inband metadata track dispatch type
-   * @param {Object} tech the video.js tech
-   * @private
-   */
-
-  const createMetadataTrackIfNotExists = (inbandTextTracks, dispatchType, tech) => {
-    if (inbandTextTracks.metadataTrack_) {
-      return;
-    }
-    inbandTextTracks.metadataTrack_ = tech.addRemoteTextTrack({
-      kind: 'metadata',
-      label: 'Timed Metadata'
-    }, false).track;
-    if (!videojs.browser.IS_ANY_SAFARI) {
-      inbandTextTracks.metadataTrack_.inBandMetadataTrackDispatchType = dispatchType;
-    }
-  };
-  /**
-   * Remove cues from a track on video.js.
-   *
-   * @param {Double} start start of where we should remove the cue
-   * @param {Double} end end of where the we should remove the cue
-   * @param {Object} track the text track to remove the cues from
-   * @private
-   */
-
-  const removeCuesFromTrack = function (start, end, track) {
-    let i;
-    let cue;
-    if (!track) {
-      return;
-    }
-    if (!track.cues) {
-      return;
-    }
-    i = track.cues.length;
-    while (i--) {
-      cue = track.cues[i]; // Remove any cue within the provided start and end time
-
-      if (cue.startTime >= start && cue.endTime <= end) {
-        track.removeCue(cue);
-      }
-    }
-  };
-  /**
-   * Remove duplicate cues from a track on video.js (a cue is considered a
-   * duplicate if it has the same time interval and text as another)
-   *
-   * @param {Object} track the text track to remove the duplicate cues from
-   * @private
-   */
-
-  const removeDuplicateCuesFromTrack = function (track) {
-    const cues = track.cues;
-    if (!cues) {
-      return;
-    }
-    const uniqueCues = {};
-    for (let i = cues.length - 1; i >= 0; i--) {
-      const cue = cues[i];
-      const cueKey = `${cue.startTime}-${cue.endTime}-${cue.text}`;
-      if (uniqueCues[cueKey]) {
-        track.removeCue(cue);
-      } else {
-        uniqueCues[cueKey] = cue;
-      }
-    }
-  };
-
-  /**
-   * Returns a list of gops in the buffer that have a pts value of 3 seconds or more in
-   * front of current time.
-   *
-   * @param {Array} buffer
-   *        The current buffer of gop information
-   * @param {number} currentTime
-   *        The current time
-   * @param {Double} mapping
-   *        Offset to map display time to stream presentation time
-   * @return {Array}
-   *         List of gops considered safe to append over
-   */
-
-  const gopsSafeToAlignWith = (buffer, currentTime, mapping) => {
-    if (typeof currentTime === 'undefined' || currentTime === null || !buffer.length) {
-      return [];
-    } // pts value for current time + 3 seconds to give a bit more wiggle room
-
-    const currentTimePts = Math.ceil((currentTime - mapping + 3) * clock_1);
-    let i;
-    for (i = 0; i < buffer.length; i++) {
-      if (buffer[i].pts > currentTimePts) {
-        break;
-      }
-    }
-    return buffer.slice(i);
-  };
-  /**
-   * Appends gop information (timing and byteLength) received by the transmuxer for the
-   * gops appended in the last call to appendBuffer
-   *
-   * @param {Array} buffer
-   *        The current buffer of gop information
-   * @param {Array} gops
-   *        List of new gop information
-   * @param {boolean} replace
-   *        If true, replace the buffer with the new gop information. If false, append the
-   *        new gop information to the buffer in the right location of time.
-   * @return {Array}
-   *         Updated list of gop information
-   */
-
-  const updateGopBuffer = (buffer, gops, replace) => {
-    if (!gops.length) {
-      return buffer;
-    }
-    if (replace) {
-      // If we are in safe append mode, then completely overwrite the gop buffer
-      // with the most recent appeneded data. This will make sure that when appending
-      // future segments, we only try to align with gops that are both ahead of current
-      // time and in the last segment appended.
-      return gops.slice();
-    }
-    const start = gops[0].pts;
-    let i = 0;
-    for (i; i < buffer.length; i++) {
-      if (buffer[i].pts >= start) {
-        break;
-      }
-    }
-    return buffer.slice(0, i).concat(gops);
-  };
-  /**
-   * Removes gop information in buffer that overlaps with provided start and end
-   *
-   * @param {Array} buffer
-   *        The current buffer of gop information
-   * @param {Double} start
-   *        position to start the remove at
-   * @param {Double} end
-   *        position to end the remove at
-   * @param {Double} mapping
-   *        Offset to map display time to stream presentation time
-   */
-
-  const removeGopBuffer = (buffer, start, end, mapping) => {
-    const startPts = Math.ceil((start - mapping) * clock_1);
-    const endPts = Math.ceil((end - mapping) * clock_1);
-    const updatedBuffer = buffer.slice();
-    let i = buffer.length;
-    while (i--) {
-      if (buffer[i].pts <= endPts) {
-        break;
-      }
-    }
-    if (i === -1) {
-      // no removal because end of remove range is before start of buffer
-      return updatedBuffer;
-    }
-    let j = i + 1;
-    while (j--) {
-      if (buffer[j].pts <= startPts) {
-        break;
-      }
-    } // clamp remove range start to 0 index
-
-    j = Math.max(j, 0);
-    updatedBuffer.splice(j, i - j + 1);
-    return updatedBuffer;
-  };
-  const shallowEqual = function (a, b) {
-    // if both are undefined
-    // or one or the other is undefined
-    // they are not equal
-    if (!a && !b || !a && b || a && !b) {
-      return false;
-    } // they are the same object and thus, equal
-
-    if (a === b) {
-      return true;
-    } // sort keys so we can make sure they have
-    // all the same keys later.
-
-    const akeys = Object.keys(a).sort();
-    const bkeys = Object.keys(b).sort(); // different number of keys, not equal
-
-    if (akeys.length !== bkeys.length) {
-      return false;
-    }
-    for (let i = 0; i < akeys.length; i++) {
-      const key = akeys[i]; // different sorted keys, not equal
-
-      if (key !== bkeys[i]) {
-        return false;
-      } // different values, not equal
-
-      if (a[key] !== b[key]) {
-        return false;
-      }
-    }
-    return true;
-  };
-
-  // https://www.w3.org/TR/WebIDL-1/#quotaexceedederror
-  const QUOTA_EXCEEDED_ERR = 22;
-
-  /**
-   * The segment loader has no recourse except to fetch a segment in the
-   * current playlist and use the internal timestamps in that segment to
-   * generate a syncPoint. This function returns a good candidate index
-   * for that process.
-   *
-   * @param {Array} segments - the segments array from a playlist.
-   * @return {number} An index of a segment from the playlist to load
-   */
-
-  const getSyncSegmentCandidate = function (currentTimeline, segments, targetTime) {
-    segments = segments || [];
-    const timelineSegments = [];
-    let time = 0;
-    for (let i = 0; i < segments.length; i++) {
-      const segment = segments[i];
-      if (currentTimeline === segment.timeline) {
-        timelineSegments.push(i);
-        time += segment.duration;
-        if (time > targetTime) {
-          return i;
-        }
-      }
-    }
-    if (timelineSegments.length === 0) {
-      return 0;
-    } // default to the last timeline segment
-
-    return timelineSegments[timelineSegments.length - 1];
-  }; // In the event of a quota exceeded error, keep at least one second of back buffer. This
-  // number was arbitrarily chosen and may be updated in the future, but seemed reasonable
-  // as a start to prevent any potential issues with removing content too close to the
-  // playhead.
-
-  const MIN_BACK_BUFFER = 1; // in ms
-
-  const CHECK_BUFFER_DELAY = 500;
-  const finite = num => typeof num === 'number' && isFinite(num); // With most content hovering around 30fps, if a segment has a duration less than a half
-  // frame at 30fps or one frame at 60fps, the bandwidth and throughput calculations will
-  // not accurately reflect the rest of the content.
-
-  const MIN_SEGMENT_DURATION_TO_SAVE_STATS = 1 / 60;
-  const illegalMediaSwitch = (loaderType, startingMedia, trackInfo) => {
-    // Although these checks should most likely cover non 'main' types, for now it narrows
-    // the scope of our checks.
-    if (loaderType !== 'main' || !startingMedia || !trackInfo) {
-      return null;
-    }
-    if (!trackInfo.hasAudio && !trackInfo.hasVideo) {
-      return 'Neither audio nor video found in segment.';
-    }
-    if (startingMedia.hasVideo && !trackInfo.hasVideo) {
-      return 'Only audio found in segment when we expected video.' + ' We can\'t switch to audio only from a stream that had video.' + ' To get rid of this message, please add codec information to the manifest.';
-    }
-    if (!startingMedia.hasVideo && trackInfo.hasVideo) {
-      return 'Video found in segment when we expected only audio.' + ' We can\'t switch to a stream with video from an audio only stream.' + ' To get rid of this message, please add codec information to the manifest.';
-    }
-    return null;
-  };
-  /**
-   * Calculates a time value that is safe to remove from the back buffer without interrupting
-   * playback.
-   *
-   * @param {TimeRange} seekable
-   *        The current seekable range
-   * @param {number} currentTime
-   *        The current time of the player
-   * @param {number} targetDuration
-   *        The target duration of the current playlist
-   * @return {number}
-   *         Time that is safe to remove from the back buffer without interrupting playback
-   */
-
-  const safeBackBufferTrimTime = (seekable, currentTime, targetDuration) => {
-    // 30 seconds before the playhead provides a safe default for trimming.
-    //
-    // Choosing a reasonable default is particularly important for high bitrate content and
-    // VOD videos/live streams with large windows, as the buffer may end up overfilled and
-    // throw an APPEND_BUFFER_ERR.
-    let trimTime = currentTime - Config.BACK_BUFFER_LENGTH;
-    if (seekable.length) {
-      // Some live playlists may have a shorter window of content than the full allowed back
-      // buffer. For these playlists, don't save content that's no longer within the window.
-      trimTime = Math.max(trimTime, seekable.start(0));
-    } // Don't remove within target duration of the current time to avoid the possibility of
-    // removing the GOP currently being played, as removing it can cause playback stalls.
-
-    const maxTrimTime = currentTime - targetDuration;
-    return Math.min(maxTrimTime, trimTime);
-  };
-  const segmentInfoString = segmentInfo => {
-    const {
-      startOfSegment,
-      duration,
-      segment,
-      part,
-      playlist: {
-        mediaSequence: seq,
-        id,
-        segments = []
-      },
-      mediaIndex: index,
-      partIndex,
-      timeline
-    } = segmentInfo;
-    const segmentLen = segments.length - 1;
-    let selection = 'mediaIndex/partIndex increment';
-    if (segmentInfo.getMediaInfoForTime) {
-      selection = `getMediaInfoForTime (${segmentInfo.getMediaInfoForTime})`;
-    } else if (segmentInfo.isSyncRequest) {
-      selection = 'getSyncSegmentCandidate (isSyncRequest)';
-    }
-    if (segmentInfo.independent) {
-      selection += ` with independent ${segmentInfo.independent}`;
-    }
-    const hasPartIndex = typeof partIndex === 'number';
-    const name = segmentInfo.segment.uri ? 'segment' : 'pre-segment';
-    const zeroBasedPartCount = hasPartIndex ? getKnownPartCount({
-      preloadSegment: segment
-    }) - 1 : 0;
-    return `${name} [${seq + index}/${seq + segmentLen}]` + (hasPartIndex ? ` part [${partIndex}/${zeroBasedPartCount}]` : '') + ` segment start/end [${segment.start} => ${segment.end}]` + (hasPartIndex ? ` part start/end [${part.start} => ${part.end}]` : '') + ` startOfSegment [${startOfSegment}]` + ` duration [${duration}]` + ` timeline [${timeline}]` + ` selected by [${selection}]` + ` playlist [${id}]`;
-  };
-  const timingInfoPropertyForMedia = mediaType => `${mediaType}TimingInfo`;
-  /**
-   * Returns the timestamp offset to use for the segment.
-   *
-   * @param {number} segmentTimeline
-   *        The timeline of the segment
-   * @param {number} currentTimeline
-   *        The timeline currently being followed by the loader
-   * @param {number} startOfSegment
-   *        The estimated segment start
-   * @param {TimeRange[]} buffered
-   *        The loader's buffer
-   * @param {boolean} overrideCheck
-   *        If true, no checks are made to see if the timestamp offset value should be set,
-   *        but sets it directly to a value.
-   *
-   * @return {number|null}
-   *         Either a number representing a new timestamp offset, or null if the segment is
-   *         part of the same timeline
-   */
-
-  const timestampOffsetForSegment = ({
-    segmentTimeline,
-    currentTimeline,
-    startOfSegment,
-    buffered,
-    overrideCheck
-  }) => {
-    // Check to see if we are crossing a discontinuity to see if we need to set the
-    // timestamp offset on the transmuxer and source buffer.
-    //
-    // Previously, we changed the timestampOffset if the start of this segment was less than
-    // the currently set timestampOffset, but this isn't desirable as it can produce bad
-    // behavior, especially around long running live streams.
-    if (!overrideCheck && segmentTimeline === currentTimeline) {
-      return null;
-    } // When changing renditions, it's possible to request a segment on an older timeline. For
-    // instance, given two renditions with the following:
-    //
-    // #EXTINF:10
-    // segment1
-    // #EXT-X-DISCONTINUITY
-    // #EXTINF:10
-    // segment2
-    // #EXTINF:10
-    // segment3
-    //
-    // And the current player state:
-    //
-    // current time: 8
-    // buffer: 0 => 20
-    //
-    // The next segment on the current rendition would be segment3, filling the buffer from
-    // 20s onwards. However, if a rendition switch happens after segment2 was requested,
-    // then the next segment to be requested will be segment1 from the new rendition in
-    // order to fill time 8 and onwards. Using the buffered end would result in repeated
-    // content (since it would position segment1 of the new rendition starting at 20s). This
-    // case can be identified when the new segment's timeline is a prior value. Instead of
-    // using the buffered end, the startOfSegment can be used, which, hopefully, will be
-    // more accurate to the actual start time of the segment.
-
-    if (segmentTimeline < currentTimeline) {
-      return startOfSegment;
-    } // segmentInfo.startOfSegment used to be used as the timestamp offset, however, that
-    // value uses the end of the last segment if it is available. While this value
-    // should often be correct, it's better to rely on the buffered end, as the new
-    // content post discontinuity should line up with the buffered end as if it were
-    // time 0 for the new content.
-
-    return buffered.length ? buffered.end(buffered.length - 1) : startOfSegment;
-  };
-  /**
-   * Returns whether or not the loader should wait for a timeline change from the timeline
-   * change controller before processing the segment.
-   *
-   * Primary timing in VHS goes by video. This is different from most media players, as
-   * audio is more often used as the primary timing source. For the foreseeable future, VHS
-   * will continue to use video as the primary timing source, due to the current logic and
-   * expectations built around it.
-
-   * Since the timing follows video, in order to maintain sync, the video loader is
-   * responsible for setting both audio and video source buffer timestamp offsets.
-   *
-   * Setting different values for audio and video source buffers could lead to
-   * desyncing. The following examples demonstrate some of the situations where this
-   * distinction is important. Note that all of these cases involve demuxed content. When
-   * content is muxed, the audio and video are packaged together, therefore syncing
-   * separate media playlists is not an issue.
-   *
-   * CASE 1: Audio prepares to load a new timeline before video:
-   *
-   * Timeline:       0                 1
-   * Audio Segments: 0 1 2 3 4 5 DISCO 6 7 8 9
-   * Audio Loader:                     ^
-   * Video Segments: 0 1 2 3 4 5 DISCO 6 7 8 9
-   * Video Loader              ^
-   *
-   * In the above example, the audio loader is preparing to load the 6th segment, the first
-   * after a discontinuity, while the video loader is still loading the 5th segment, before
-   * the discontinuity.
-   *
-   * If the audio loader goes ahead and loads and appends the 6th segment before the video
-   * loader crosses the discontinuity, then when appended, the 6th audio segment will use
-   * the timestamp offset from timeline 0. This will likely lead to desyncing. In addition,
-   * the audio loader must provide the audioAppendStart value to trim the content in the
-   * transmuxer, and that value relies on the audio timestamp offset. Since the audio
-   * timestamp offset is set by the video (main) loader, the audio loader shouldn't load the
-   * segment until that value is provided.
-   *
-   * CASE 2: Video prepares to load a new timeline before audio:
-   *
-   * Timeline:       0                 1
-   * Audio Segments: 0 1 2 3 4 5 DISCO 6 7 8 9
-   * Audio Loader:             ^
-   * Video Segments: 0 1 2 3 4 5 DISCO 6 7 8 9
-   * Video Loader                      ^
-   *
-   * In the above example, the video loader is preparing to load the 6th segment, the first
-   * after a discontinuity, while the audio loader is still loading the 5th segment, before
-   * the discontinuity.
-   *
-   * If the video loader goes ahead and loads and appends the 6th segment, then once the
-   * segment is loaded and processed, both the video and audio timestamp offsets will be
-   * set, since video is used as the primary timing source. This is to ensure content lines
-   * up appropriately, as any modifications to the video timing are reflected by audio when
-   * the video loader sets the audio and video timestamp offsets to the same value. However,
-   * setting the timestamp offset for audio before audio has had a chance to change
-   * timelines will likely lead to desyncing, as the audio loader will append segment 5 with
-   * a timestamp intended to apply to segments from timeline 1 rather than timeline 0.
-   *
-   * CASE 3: When seeking, audio prepares to load a new timeline before video
-   *
-   * Timeline:       0                 1
-   * Audio Segments: 0 1 2 3 4 5 DISCO 6 7 8 9
-   * Audio Loader:           ^
-   * Video Segments: 0 1 2 3 4 5 DISCO 6 7 8 9
-   * Video Loader            ^
-   *
-   * In the above example, both audio and video loaders are loading segments from timeline
-   * 0, but imagine that the seek originated from timeline 1.
-   *
-   * When seeking to a new timeline, the timestamp offset will be set based on the expected
-   * segment start of the loaded video segment. In order to maintain sync, the audio loader
-   * must wait for the video loader to load its segment and update both the audio and video
-   * timestamp offsets before it may load and append its own segment. This is the case
-   * whether the seek results in a mismatched segment request (e.g., the audio loader
-   * chooses to load segment 3 and the video loader chooses to load segment 4) or the
-   * loaders choose to load the same segment index from each playlist, as the segments may
-   * not be aligned perfectly, even for matching segment indexes.
-   *
-   * @param {Object} timelinechangeController
-   * @param {number} currentTimeline
-   *        The timeline currently being followed by the loader
-   * @param {number} segmentTimeline
-   *        The timeline of the segment being loaded
-   * @param {('main'|'audio')} loaderType
-   *        The loader type
-   * @param {boolean} audioDisabled
-   *        Whether the audio is disabled for the loader. This should only be true when the
-   *        loader may have muxed audio in its segment, but should not append it, e.g., for
-   *        the main loader when an alternate audio playlist is active.
-   *
-   * @return {boolean}
-   *         Whether the loader should wait for a timeline change from the timeline change
-   *         controller before processing the segment
-   */
-
-  const shouldWaitForTimelineChange = ({
-    timelineChangeController,
-    currentTimeline,
-    segmentTimeline,
-    loaderType,
-    audioDisabled
-  }) => {
-    if (currentTimeline === segmentTimeline) {
-      return false;
-    }
-    if (loaderType === 'audio') {
-      const lastMainTimelineChange = timelineChangeController.lastTimelineChange({
-        type: 'main'
-      }); // Audio loader should wait if:
-      //
-      // * main hasn't had a timeline change yet (thus has not loaded its first segment)
-      // * main hasn't yet changed to the timeline audio is looking to load
-
-      return !lastMainTimelineChange || lastMainTimelineChange.to !== segmentTimeline;
-    } // The main loader only needs to wait for timeline changes if there's demuxed audio.
-    // Otherwise, there's nothing to wait for, since audio would be muxed into the main
-    // loader's segments (or the content is audio/video only and handled by the main
-    // loader).
-
-    if (loaderType === 'main' && audioDisabled) {
-      const pendingAudioTimelineChange = timelineChangeController.pendingTimelineChange({
-        type: 'audio'
-      }); // Main loader should wait for the audio loader if audio is not pending a timeline
-      // change to the current timeline.
-      //
-      // Since the main loader is responsible for setting the timestamp offset for both
-      // audio and video, the main loader must wait for audio to be about to change to its
-      // timeline before setting the offset, otherwise, if audio is behind in loading,
-      // segments from the previous timeline would be adjusted by the new timestamp offset.
-      //
-      // This requirement means that video will not cross a timeline until the audio is
-      // about to cross to it, so that way audio and video will always cross the timeline
-      // together.
-      //
-      // In addition to normal timeline changes, these rules also apply to the start of a
-      // stream (going from a non-existent timeline, -1, to timeline 0). It's important
-      // that these rules apply to the first timeline change because if they did not, it's
-      // possible that the main loader will cross two timelines before the audio loader has
-      // crossed one. Logic may be implemented to handle the startup as a special case, but
-      // it's easier to simply treat all timeline changes the same.
-
-      if (pendingAudioTimelineChange && pendingAudioTimelineChange.to === segmentTimeline) {
-        return false;
-      }
-      return true;
-    }
-    return false;
-  };
-  const mediaDuration = timingInfos => {
-    let maxDuration = 0;
-    ['video', 'audio'].forEach(function (type) {
-      const typeTimingInfo = timingInfos[`${type}TimingInfo`];
-      if (!typeTimingInfo) {
-        return;
-      }
-      const {
-        start,
-        end
-      } = typeTimingInfo;
-      let duration;
-      if (typeof start === 'bigint' || typeof end === 'bigint') {
-        duration = window.BigInt(end) - window.BigInt(start);
-      } else if (typeof start === 'number' && typeof end === 'number') {
-        duration = end - start;
-      }
-      if (typeof duration !== 'undefined' && duration > maxDuration) {
-        maxDuration = duration;
-      }
-    }); // convert back to a number if it is lower than MAX_SAFE_INTEGER
-    // as we only need BigInt when we are above that.
-
-    if (typeof maxDuration === 'bigint' && maxDuration < Number.MAX_SAFE_INTEGER) {
-      maxDuration = Number(maxDuration);
-    }
-    return maxDuration;
-  };
-  const segmentTooLong = ({
-    segmentDuration,
-    maxDuration
-  }) => {
-    // 0 duration segments are most likely due to metadata only segments or a lack of
-    // information.
-    if (!segmentDuration) {
-      return false;
-    } // For HLS:
-    //
-    // https://tools.ietf.org/html/draft-pantos-http-live-streaming-23#section-4.3.3.1
-    // The EXTINF duration of each Media Segment in the Playlist
-    // file, when rounded to the nearest integer, MUST be less than or equal
-    // to the target duration; longer segments can trigger playback stalls
-    // or other errors.
-    //
-    // For DASH, the mpd-parser uses the largest reported segment duration as the target
-    // duration. Although that reported duration is occasionally approximate (i.e., not
-    // exact), a strict check may report that a segment is too long more often in DASH.
-
-    return Math.round(segmentDuration) > maxDuration + TIME_FUDGE_FACTOR;
-  };
-  const getTroublesomeSegmentDurationMessage = (segmentInfo, sourceType) => {
-    // Right now we aren't following DASH's timing model exactly, so only perform
-    // this check for HLS content.
-    if (sourceType !== 'hls') {
-      return null;
-    }
-    const segmentDuration = mediaDuration({
-      audioTimingInfo: segmentInfo.audioTimingInfo,
-      videoTimingInfo: segmentInfo.videoTimingInfo
-    }); // Don't report if we lack information.
-    //
-    // If the segment has a duration of 0 it is either a lack of information or a
-    // metadata only segment and shouldn't be reported here.
-
-    if (!segmentDuration) {
-      return null;
-    }
-    const targetDuration = segmentInfo.playlist.targetDuration;
-    const isSegmentWayTooLong = segmentTooLong({
-      segmentDuration,
-      maxDuration: targetDuration * 2
-    });
-    const isSegmentSlightlyTooLong = segmentTooLong({
-      segmentDuration,
-      maxDuration: targetDuration
-    });
-    const segmentTooLongMessage = `Segment with index ${segmentInfo.mediaIndex} ` + `from playlist ${segmentInfo.playlist.id} ` + `has a duration of ${segmentDuration} ` + `when the reported duration is ${segmentInfo.duration} ` + `and the target duration is ${targetDuration}. ` + 'For HLS content, a duration in excess of the target duration may result in ' + 'playback issues. See the HLS specification section on EXT-X-TARGETDURATION for ' + 'more details: ' + 'https://tools.ietf.org/html/draft-pantos-http-live-streaming-23#section-4.3.3.1';
-    if (isSegmentWayTooLong || isSegmentSlightlyTooLong) {
-      return {
-        severity: isSegmentWayTooLong ? 'warn' : 'info',
-        message: segmentTooLongMessage
-      };
-    }
-    return null;
-  };
-  /**
-   * An object that manages segment loading and appending.
-   *
-   * @class SegmentLoader
-   * @param {Object} options required and optional options
-   * @extends videojs.EventTarget
-   */
-
-  class SegmentLoader extends videojs.EventTarget {
-    constructor(settings, options = {}) {
-      super(); // check pre-conditions
-
-      if (!settings) {
-        throw new TypeError('Initialization settings are required');
-      }
-      if (typeof settings.currentTime !== 'function') {
-        throw new TypeError('No currentTime getter specified');
-      }
-      if (!settings.mediaSource) {
-        throw new TypeError('No MediaSource specified');
-      } // public properties
-
-      this.bandwidth = settings.bandwidth;
-      this.throughput = {
-        rate: 0,
-        count: 0
-      };
-      this.roundTrip = NaN;
-      this.resetStats_();
-      this.mediaIndex = null;
-      this.partIndex = null; // private settings
-
-      this.hasPlayed_ = settings.hasPlayed;
-      this.currentTime_ = settings.currentTime;
-      this.seekable_ = settings.seekable;
-      this.seeking_ = settings.seeking;
-      this.duration_ = settings.duration;
-      this.mediaSource_ = settings.mediaSource;
-      this.vhs_ = settings.vhs;
-      this.loaderType_ = settings.loaderType;
-      this.currentMediaInfo_ = void 0;
-      this.startingMediaInfo_ = void 0;
-      this.segmentMetadataTrack_ = settings.segmentMetadataTrack;
-      this.goalBufferLength_ = settings.goalBufferLength;
-      this.sourceType_ = settings.sourceType;
-      this.sourceUpdater_ = settings.sourceUpdater;
-      this.inbandTextTracks_ = settings.inbandTextTracks;
-      this.state_ = 'INIT';
-      this.timelineChangeController_ = settings.timelineChangeController;
-      this.shouldSaveSegmentTimingInfo_ = true;
-      this.parse708captions_ = settings.parse708captions;
-      this.useDtsForTimestampOffset_ = settings.useDtsForTimestampOffset;
-      this.captionServices_ = settings.captionServices;
-      this.exactManifestTimings = settings.exactManifestTimings;
-      this.addMetadataToTextTrack = settings.addMetadataToTextTrack; // private instance variables
-
-      this.checkBufferTimeout_ = null;
-      this.error_ = void 0;
-      this.currentTimeline_ = -1;
-      this.shouldForceTimestampOffsetAfterResync_ = false;
-      this.pendingSegment_ = null;
-      this.xhrOptions_ = null;
-      this.pendingSegments_ = [];
-      this.audioDisabled_ = false;
-      this.isPendingTimestampOffset_ = false; // TODO possibly move gopBuffer and timeMapping info to a separate controller
-
-      this.gopBuffer_ = [];
-      this.timeMapping_ = 0;
-      this.safeAppend_ = false;
-      this.appendInitSegment_ = {
-        audio: true,
-        video: true
-      };
-      this.playlistOfLastInitSegment_ = {
-        audio: null,
-        video: null
-      };
-      this.callQueue_ = []; // If the segment loader prepares to load a segment, but does not have enough
-      // information yet to start the loading process (e.g., if the audio loader wants to
-      // load a segment from the next timeline but the main loader hasn't yet crossed that
-      // timeline), then the load call will be added to the queue until it is ready to be
-      // processed.
-
-      this.loadQueue_ = [];
-      this.metadataQueue_ = {
-        id3: [],
-        caption: []
-      };
-      this.waitingOnRemove_ = false;
-      this.quotaExceededErrorRetryTimeout_ = null; // Fragmented mp4 playback
-
-      this.activeInitSegmentId_ = null;
-      this.initSegments_ = {}; // HLSe playback
-
-      this.cacheEncryptionKeys_ = settings.cacheEncryptionKeys;
-      this.keyCache_ = {};
-      this.decrypter_ = settings.decrypter; // Manages the tracking and generation of sync-points, mappings
-      // between a time in the display time and a segment index within
-      // a playlist
-
-      this.syncController_ = settings.syncController;
-      this.syncPoint_ = {
-        segmentIndex: 0,
-        time: 0
-      };
-      this.transmuxer_ = this.createTransmuxer_();
-      this.triggerSyncInfoUpdate_ = () => this.trigger('syncinfoupdate');
-      this.syncController_.on('syncinfoupdate', this.triggerSyncInfoUpdate_);
-      this.mediaSource_.addEventListener('sourceopen', () => {
-        if (!this.isEndOfStream_()) {
-          this.ended_ = false;
-        }
-      }); // ...for determining the fetch location
-
-      this.fetchAtBuffer_ = false;
-      this.logger_ = logger(`SegmentLoader[${this.loaderType_}]`);
-      Object.defineProperty(this, 'state', {
-        get() {
-          return this.state_;
-        },
-        set(newState) {
-          if (newState !== this.state_) {
-            this.logger_(`${this.state_} -> ${newState}`);
-            this.state_ = newState;
-            this.trigger('statechange');
-          }
-        }
-      });
-      this.sourceUpdater_.on('ready', () => {
-        if (this.hasEnoughInfoToAppend_()) {
-          this.processCallQueue_();
-        }
-      }); // Only the main loader needs to listen for pending timeline changes, as the main
-      // loader should wait for audio to be ready to change its timeline so that both main
-      // and audio timelines change together. For more details, see the
-      // shouldWaitForTimelineChange function.
-
-      if (this.loaderType_ === 'main') {
-        this.timelineChangeController_.on('pendingtimelinechange', () => {
-          if (this.hasEnoughInfoToAppend_()) {
-            this.processCallQueue_();
-          }
-        });
-      } // The main loader only listens on pending timeline changes, but the audio loader,
-      // since its loads follow main, needs to listen on timeline changes. For more details,
-      // see the shouldWaitForTimelineChange function.
-
-      if (this.loaderType_ === 'audio') {
-        this.timelineChangeController_.on('timelinechange', () => {
-          if (this.hasEnoughInfoToLoad_()) {
-            this.processLoadQueue_();
-          }
-          if (this.hasEnoughInfoToAppend_()) {
-            this.processCallQueue_();
-          }
-        });
-      }
-    }
-    /**
-     * TODO: Current sync controller consists of many hls-specific strategies
-     * media sequence sync is also hls-specific, and we would like to be protocol-agnostic on this level
-     * this should be a part of the sync-controller and sync controller should expect different strategy list based on the protocol.
-     *
-     * @return {MediaSequenceSync|null}
-     * @private
-     */
-
-    get mediaSequenceSync_() {
-      return this.syncController_.getMediaSequenceSync(this.loaderType_);
-    }
-    createTransmuxer_() {
-      return segmentTransmuxer.createTransmuxer({
-        remux: false,
-        alignGopsAtEnd: this.safeAppend_,
-        keepOriginalTimestamps: true,
-        parse708captions: this.parse708captions_,
-        captionServices: this.captionServices_
-      });
-    }
-    /**
-     * reset all of our media stats
-     *
-     * @private
-     */
-
-    resetStats_() {
-      this.mediaBytesTransferred = 0;
-      this.mediaRequests = 0;
-      this.mediaRequestsAborted = 0;
-      this.mediaRequestsTimedout = 0;
-      this.mediaRequestsErrored = 0;
-      this.mediaTransferDuration = 0;
-      this.mediaSecondsLoaded = 0;
-      this.mediaAppends = 0;
-    }
-    /**
-     * dispose of the SegmentLoader and reset to the default state
-     */
-
-    dispose() {
-      this.trigger('dispose');
-      this.state = 'DISPOSED';
-      this.pause();
-      this.abort_();
-      if (this.transmuxer_) {
-        this.transmuxer_.terminate();
-      }
-      this.resetStats_();
-      if (this.checkBufferTimeout_) {
-        window.clearTimeout(this.checkBufferTimeout_);
-      }
-      if (this.syncController_ && this.triggerSyncInfoUpdate_) {
-        this.syncController_.off('syncinfoupdate', this.triggerSyncInfoUpdate_);
-      }
-      this.off();
-    }
-    setAudio(enable) {
-      this.audioDisabled_ = !enable;
-      if (enable) {
-        this.appendInitSegment_.audio = true;
-      } else {
-        // remove current track audio if it gets disabled
-        this.sourceUpdater_.removeAudio(0, this.duration_());
-      }
-    }
-    /**
-     * abort anything that is currently doing on with the SegmentLoader
-     * and reset to a default state
-     */
-
-    abort() {
-      if (this.state !== 'WAITING') {
-        if (this.pendingSegment_) {
-          this.pendingSegment_ = null;
-        }
-        return;
-      }
-      this.abort_(); // We aborted the requests we were waiting on, so reset the loader's state to READY
-      // since we are no longer "waiting" on any requests. XHR callback is not always run
-      // when the request is aborted. This will prevent the loader from being stuck in the
-      // WAITING state indefinitely.
-
-      this.state = 'READY'; // don't wait for buffer check timeouts to begin fetching the
-      // next segment
-
-      if (!this.paused()) {
-        this.monitorBuffer_();
-      }
-    }
-    /**
-     * abort all pending xhr requests and null any pending segements
-     *
-     * @private
-     */
-
-    abort_() {
-      if (this.pendingSegment_ && this.pendingSegment_.abortRequests) {
-        this.pendingSegment_.abortRequests();
-      } // clear out the segment being processed
-
-      this.pendingSegment_ = null;
-      this.callQueue_ = [];
-      this.loadQueue_ = [];
-      this.metadataQueue_.id3 = [];
-      this.metadataQueue_.caption = [];
-      this.timelineChangeController_.clearPendingTimelineChange(this.loaderType_);
-      this.waitingOnRemove_ = false;
-      window.clearTimeout(this.quotaExceededErrorRetryTimeout_);
-      this.quotaExceededErrorRetryTimeout_ = null;
-    }
-    checkForAbort_(requestId) {
-      // If the state is APPENDING, then aborts will not modify the state, meaning the first
-      // callback that happens should reset the state to READY so that loading can continue.
-      if (this.state === 'APPENDING' && !this.pendingSegment_) {
-        this.state = 'READY';
-        return true;
-      }
-      if (!this.pendingSegment_ || this.pendingSegment_.requestId !== requestId) {
-        return true;
-      }
-      return false;
-    }
-    /**
-     * set an error on the segment loader and null out any pending segements
-     *
-     * @param {Error} error the error to set on the SegmentLoader
-     * @return {Error} the error that was set or that is currently set
-     */
-
-    error(error) {
-      if (typeof error !== 'undefined') {
-        this.logger_('error occurred:', error);
-        this.error_ = error;
-      }
-      this.pendingSegment_ = null;
-      return this.error_;
-    }
-    endOfStream() {
-      this.ended_ = true;
-      if (this.transmuxer_) {
-        // need to clear out any cached data to prepare for the new segment
-        segmentTransmuxer.reset(this.transmuxer_);
-      }
-      this.gopBuffer_.length = 0;
-      this.pause();
-      this.trigger('ended');
-    }
-    /**
-     * Indicates which time ranges are buffered
-     *
-     * @return {TimeRange}
-     *         TimeRange object representing the current buffered ranges
-     */
-
-    buffered_() {
-      const trackInfo = this.getMediaInfo_();
-      if (!this.sourceUpdater_ || !trackInfo) {
-        return createTimeRanges();
-      }
-      if (this.loaderType_ === 'main') {
-        const {
-          hasAudio,
-          hasVideo,
-          isMuxed
-        } = trackInfo;
-        if (hasVideo && hasAudio && !this.audioDisabled_ && !isMuxed) {
-          return this.sourceUpdater_.buffered();
-        }
-        if (hasVideo) {
-          return this.sourceUpdater_.videoBuffered();
-        }
-      } // One case that can be ignored for now is audio only with alt audio,
-      // as we don't yet have proper support for that.
-
-      return this.sourceUpdater_.audioBuffered();
-    }
-    /**
-     * Gets and sets init segment for the provided map
-     *
-     * @param {Object} map
-     *        The map object representing the init segment to get or set
-     * @param {boolean=} set
-     *        If true, the init segment for the provided map should be saved
-     * @return {Object}
-     *         map object for desired init segment
-     */
-
-    initSegmentForMap(map, set = false) {
-      if (!map) {
-        return null;
-      }
-      const id = initSegmentId(map);
-      let storedMap = this.initSegments_[id];
-      if (set && !storedMap && map.bytes) {
-        this.initSegments_[id] = storedMap = {
-          resolvedUri: map.resolvedUri,
-          byterange: map.byterange,
-          bytes: map.bytes,
-          tracks: map.tracks,
-          timescales: map.timescales
-        };
-      }
-      return storedMap || map;
-    }
-    /**
-     * Gets and sets key for the provided key
-     *
-     * @param {Object} key
-     *        The key object representing the key to get or set
-     * @param {boolean=} set
-     *        If true, the key for the provided key should be saved
-     * @return {Object}
-     *         Key object for desired key
-     */
-
-    segmentKey(key, set = false) {
-      if (!key) {
-        return null;
-      }
-      const id = segmentKeyId(key);
-      let storedKey = this.keyCache_[id]; // TODO: We should use the HTTP Expires header to invalidate our cache per
-      // https://tools.ietf.org/html/draft-pantos-http-live-streaming-23#section-6.2.3
-
-      if (this.cacheEncryptionKeys_ && set && !storedKey && key.bytes) {
-        this.keyCache_[id] = storedKey = {
-          resolvedUri: key.resolvedUri,
-          bytes: key.bytes
-        };
-      }
-      const result = {
-        resolvedUri: (storedKey || key).resolvedUri
-      };
-      if (storedKey) {
-        result.bytes = storedKey.bytes;
-      }
-      return result;
-    }
-    /**
-     * Returns true if all configuration required for loading is present, otherwise false.
-     *
-     * @return {boolean} True if the all configuration is ready for loading
-     * @private
-     */
-
-    couldBeginLoading_() {
-      return this.playlist_ && !this.paused();
-    }
-    /**
-     * load a playlist and start to fill the buffer
-     */
-
-    load() {
-      // un-pause
-      this.monitorBuffer_(); // if we don't have a playlist yet, keep waiting for one to be
-      // specified
-
-      if (!this.playlist_) {
-        return;
-      } // if all the configuration is ready, initialize and begin loading
-
-      if (this.state === 'INIT' && this.couldBeginLoading_()) {
-        return this.init_();
-      } // if we're in the middle of processing a segment already, don't
-      // kick off an additional segment request
-
-      if (!this.couldBeginLoading_() || this.state !== 'READY' && this.state !== 'INIT') {
-        return;
-      }
-      this.state = 'READY';
-    }
-    /**
-     * Once all the starting parameters have been specified, begin
-     * operation. This method should only be invoked from the INIT
-     * state.
-     *
-     * @private
-     */
-
-    init_() {
-      this.state = 'READY'; // if this is the audio segment loader, and it hasn't been inited before, then any old
-      // audio data from the muxed content should be removed
-
-      this.resetEverything();
-      return this.monitorBuffer_();
-    }
-    /**
-     * set a playlist on the segment loader
-     *
-     * @param {PlaylistLoader} media the playlist to set on the segment loader
-     */
-
-    playlist(newPlaylist, options = {}) {
-      if (!newPlaylist) {
-        return;
-      }
-      const oldPlaylist = this.playlist_;
-      const segmentInfo = this.pendingSegment_;
-      this.playlist_ = newPlaylist;
-      this.xhrOptions_ = options; // when we haven't started playing yet, the start of a live playlist
-      // is always our zero-time so force a sync update each time the playlist
-      // is refreshed from the server
-      //
-      // Use the INIT state to determine if playback has started, as the playlist sync info
-      // should be fixed once requests begin (as sync points are generated based on sync
-      // info), but not before then.
-
-      if (this.state === 'INIT') {
-        newPlaylist.syncInfo = {
-          mediaSequence: newPlaylist.mediaSequence,
-          time: 0
-        }; // Setting the date time mapping means mapping the program date time (if available)
-        // to time 0 on the player's timeline. The playlist's syncInfo serves a similar
-        // purpose, mapping the initial mediaSequence to time zero. Since the syncInfo can
-        // be updated as the playlist is refreshed before the loader starts loading, the
-        // program date time mapping needs to be updated as well.
-        //
-        // This mapping is only done for the main loader because a program date time should
-        // map equivalently between playlists.
-
-        if (this.loaderType_ === 'main') {
-          this.syncController_.setDateTimeMappingForStart(newPlaylist);
-        }
-      }
-      let oldId = null;
-      if (oldPlaylist) {
-        if (oldPlaylist.id) {
-          oldId = oldPlaylist.id;
-        } else if (oldPlaylist.uri) {
-          oldId = oldPlaylist.uri;
-        }
-      }
-      this.logger_(`playlist update [${oldId} => ${newPlaylist.id || newPlaylist.uri}]`);
-      if (this.mediaSequenceSync_) {
-        this.mediaSequenceSync_.update(newPlaylist, this.currentTime_());
-        this.logger_(`Playlist update:
-currentTime: ${this.currentTime_()}
-bufferedEnd: ${lastBufferedEnd(this.buffered_())}
-`, this.mediaSequenceSync_.diagnostics);
-      } // in VOD, this is always a rendition switch (or we updated our syncInfo above)
-      // in LIVE, we always want to update with new playlists (including refreshes)
-
-      this.trigger('syncinfoupdate'); // if we were unpaused but waiting for a playlist, start
-      // buffering now
-
-      if (this.state === 'INIT' && this.couldBeginLoading_()) {
-        return this.init_();
-      }
-      if (!oldPlaylist || oldPlaylist.uri !== newPlaylist.uri) {
-        if (this.mediaIndex !== null) {
-          // we must reset/resync the segment loader when we switch renditions and
-          // the segment loader is already synced to the previous rendition
-          // We only want to reset the loader here for LLHLS playback, as resetLoader sets fetchAtBuffer_
-          // to false, resulting in fetching segments at currentTime and causing repeated
-          // same-segment requests on playlist change. This erroneously drives up the playback watcher
-          // stalled segment count, as re-requesting segments at the currentTime or browser cached segments
-          // will not change the buffer.
-          // Reference for LLHLS fixes: https://github.com/videojs/http-streaming/pull/1201
-          const isLLHLS = !newPlaylist.endList && typeof newPlaylist.partTargetDuration === 'number';
-          if (isLLHLS) {
-            this.resetLoader();
-          } else {
-            this.resyncLoader();
-          }
-        }
-        this.currentMediaInfo_ = void 0;
-        this.trigger('playlistupdate'); // the rest of this function depends on `oldPlaylist` being defined
-
-        return;
-      } // we reloaded the same playlist so we are in a live scenario
-      // and we will likely need to adjust the mediaIndex
-
-      const mediaSequenceDiff = newPlaylist.mediaSequence - oldPlaylist.mediaSequence;
-      this.logger_(`live window shift [${mediaSequenceDiff}]`); // update the mediaIndex on the SegmentLoader
-      // this is important because we can abort a request and this value must be
-      // equal to the last appended mediaIndex
-
-      if (this.mediaIndex !== null) {
-        this.mediaIndex -= mediaSequenceDiff; // this can happen if we are going to load the first segment, but get a playlist
-        // update during that. mediaIndex would go from 0 to -1 if mediaSequence in the
-        // new playlist was incremented by 1.
-
-        if (this.mediaIndex < 0) {
-          this.mediaIndex = null;
-          this.partIndex = null;
-        } else {
-          const segment = this.playlist_.segments[this.mediaIndex]; // partIndex should remain the same for the same segment
-          // unless parts fell off of the playlist for this segment.
-          // In that case we need to reset partIndex and resync
-
-          if (this.partIndex && (!segment.parts || !segment.parts.length || !segment.parts[this.partIndex])) {
-            const mediaIndex = this.mediaIndex;
-            this.logger_(`currently processing part (index ${this.partIndex}) no longer exists.`);
-            this.resetLoader(); // We want to throw away the partIndex and the data associated with it,
-            // as the part was dropped from our current playlists segment.
-            // The mediaIndex will still be valid so keep that around.
-
-            this.mediaIndex = mediaIndex;
-          }
-        }
-      } // update the mediaIndex on the SegmentInfo object
-      // this is important because we will update this.mediaIndex with this value
-      // in `handleAppendsDone_` after the segment has been successfully appended
-
-      if (segmentInfo) {
-        segmentInfo.mediaIndex -= mediaSequenceDiff;
-        if (segmentInfo.mediaIndex < 0) {
-          segmentInfo.mediaIndex = null;
-          segmentInfo.partIndex = null;
-        } else {
-          // we need to update the referenced segment so that timing information is
-          // saved for the new playlist's segment, however, if the segment fell off the
-          // playlist, we can leave the old reference and just lose the timing info
-          if (segmentInfo.mediaIndex >= 0) {
-            segmentInfo.segment = newPlaylist.segments[segmentInfo.mediaIndex];
-          }
-          if (segmentInfo.partIndex >= 0 && segmentInfo.segment.parts) {
-            segmentInfo.part = segmentInfo.segment.parts[segmentInfo.partIndex];
-          }
-        }
-      }
-      this.syncController_.saveExpiredSegmentInfo(oldPlaylist, newPlaylist);
-    }
-    /**
-     * Prevent the loader from fetching additional segments. If there
-     * is a segment request outstanding, it will finish processing
-     * before the loader halts. A segment loader can be unpaused by
-     * calling load().
-     */
-
-    pause() {
-      if (this.checkBufferTimeout_) {
-        window.clearTimeout(this.checkBufferTimeout_);
-        this.checkBufferTimeout_ = null;
-      }
-    }
-    /**
-     * Returns whether the segment loader is fetching additional
-     * segments when given the opportunity. This property can be
-     * modified through calls to pause() and load().
-     */
-
-    paused() {
-      return this.checkBufferTimeout_ === null;
-    }
-    /**
-     * Delete all the buffered data and reset the SegmentLoader
-     *
-     * @param {Function} [done] an optional callback to be executed when the remove
-     * operation is complete
-     */
-
-    resetEverything(done) {
-      this.ended_ = false;
-      this.activeInitSegmentId_ = null;
-      this.appendInitSegment_ = {
-        audio: true,
-        video: true
-      };
-      this.resetLoader(); // remove from 0, the earliest point, to Infinity, to signify removal of everything.
-      // VTT Segment Loader doesn't need to do anything but in the regular SegmentLoader,
-      // we then clamp the value to duration if necessary.
-
-      this.remove(0, Infinity, done); // clears fmp4 captions
-
-      if (this.transmuxer_) {
-        this.transmuxer_.postMessage({
-          action: 'clearAllMp4Captions'
-        }); // reset the cache in the transmuxer
-
-        this.transmuxer_.postMessage({
-          action: 'reset'
-        });
-      }
-    }
-    /**
-     * Force the SegmentLoader to resync and start loading around the currentTime instead
-     * of starting at the end of the buffer
-     *
-     * Useful for fast quality changes
-     */
-
-    resetLoader() {
-      this.fetchAtBuffer_ = false;
-      if (this.mediaSequenceSync_) {
-        this.mediaSequenceSync_.resetAppendedStatus();
-      }
-      this.resyncLoader();
-    }
-    /**
-     * Force the SegmentLoader to restart synchronization and make a conservative guess
-     * before returning to the simple walk-forward method
-     */
-
-    resyncLoader() {
-      if (this.transmuxer_) {
-        // need to clear out any cached data to prepare for the new segment
-        segmentTransmuxer.reset(this.transmuxer_);
-      }
-      this.mediaIndex = null;
-      this.partIndex = null;
-      this.syncPoint_ = null;
-      this.isPendingTimestampOffset_ = false; // this is mainly to sync timing-info when switching between renditions with and without timestamp-rollover,
-      // so we don't want it for DASH or fragmented mp4 segments.
-
-      const isFmp4 = this.currentMediaInfo_ && this.currentMediaInfo_.isFmp4;
-      const isHlsTs = this.sourceType_ === 'hls' && !isFmp4;
-      if (isHlsTs) {
-        this.shouldForceTimestampOffsetAfterResync_ = true;
-      }
-      this.callQueue_ = [];
-      this.loadQueue_ = [];
-      this.metadataQueue_.id3 = [];
-      this.metadataQueue_.caption = [];
-      this.abort();
-      if (this.transmuxer_) {
-        this.transmuxer_.postMessage({
-          action: 'clearParsedMp4Captions'
-        });
-      }
-    }
-    /**
-     * Remove any data in the source buffer between start and end times
-     *
-     * @param {number} start - the start time of the region to remove from the buffer
-     * @param {number} end - the end time of the region to remove from the buffer
-     * @param {Function} [done] - an optional callback to be executed when the remove
-     * @param {boolean} force - force all remove operations to happen
-     * operation is complete
-     */
-
-    remove(start, end, done = () => {}, force = false) {
-      // clamp end to duration if we need to remove everything.
-      // This is due to a browser bug that causes issues if we remove to Infinity.
-      // videojs/videojs-contrib-hls#1225
-      if (end === Infinity) {
-        end = this.duration_();
-      } // skip removes that would throw an error
-      // commonly happens during a rendition switch at the start of a video
-      // from start 0 to end 0
-
-      if (end <= start) {
-        this.logger_('skipping remove because end ${end} is <= start ${start}');
-        return;
-      }
-      if (!this.sourceUpdater_ || !this.getMediaInfo_()) {
-        this.logger_('skipping remove because no source updater or starting media info'); // nothing to remove if we haven't processed any media
-
-        return;
-      } // set it to one to complete this function's removes
-
-      let removesRemaining = 1;
-      const removeFinished = () => {
-        removesRemaining--;
-        if (removesRemaining === 0) {
-          done();
-        }
-      };
-      if (force || !this.audioDisabled_) {
-        removesRemaining++;
-        this.sourceUpdater_.removeAudio(start, end, removeFinished);
-      } // While it would be better to only remove video if the main loader has video, this
-      // should be safe with audio only as removeVideo will call back even if there's no
-      // video buffer.
-      //
-      // In theory we can check to see if there's video before calling the remove, but in
-      // the event that we're switching between renditions and from video to audio only
-      // (when we add support for that), we may need to clear the video contents despite
-      // what the new media will contain.
-
-      if (force || this.loaderType_ === 'main') {
-        this.gopBuffer_ = removeGopBuffer(this.gopBuffer_, start, end, this.timeMapping_);
-        removesRemaining++;
-        this.sourceUpdater_.removeVideo(start, end, removeFinished);
-      } // remove any captions and ID3 tags
-
-      for (const track in this.inbandTextTracks_) {
-        removeCuesFromTrack(start, end, this.inbandTextTracks_[track]);
-      }
-      removeCuesFromTrack(start, end, this.segmentMetadataTrack_); // finished this function's removes
-
-      removeFinished();
-    }
-    /**
-     * (re-)schedule monitorBufferTick_ to run as soon as possible
-     *
-     * @private
-     */
-
-    monitorBuffer_() {
-      if (this.checkBufferTimeout_) {
-        window.clearTimeout(this.checkBufferTimeout_);
-      }
-      this.checkBufferTimeout_ = window.setTimeout(this.monitorBufferTick_.bind(this), 1);
-    }
-    /**
-     * As long as the SegmentLoader is in the READY state, periodically
-     * invoke fillBuffer_().
-     *
-     * @private
-     */
-
-    monitorBufferTick_() {
-      if (this.state === 'READY') {
-        this.fillBuffer_();
-      }
-      if (this.checkBufferTimeout_) {
-        window.clearTimeout(this.checkBufferTimeout_);
-      }
-      this.checkBufferTimeout_ = window.setTimeout(this.monitorBufferTick_.bind(this), CHECK_BUFFER_DELAY);
-    }
-    /**
-     * fill the buffer with segements unless the sourceBuffers are
-     * currently updating
-     *
-     * Note: this function should only ever be called by monitorBuffer_
-     * and never directly
-     *
-     * @private
-     */
-
-    fillBuffer_() {
-      // TODO since the source buffer maintains a queue, and we shouldn't call this function
-      // except when we're ready for the next segment, this check can most likely be removed
-      if (this.sourceUpdater_.updating()) {
-        return;
-      } // see if we need to begin loading immediately
-
-      const segmentInfo = this.chooseNextRequest_();
-      if (!segmentInfo) {
-        return;
-      }
-      if (typeof segmentInfo.timestampOffset === 'number') {
-        this.isPendingTimestampOffset_ = false;
-        this.timelineChangeController_.pendingTimelineChange({
-          type: this.loaderType_,
-          from: this.currentTimeline_,
-          to: segmentInfo.timeline
-        });
-      }
-      this.loadSegment_(segmentInfo);
-    }
-    /**
-     * Determines if we should call endOfStream on the media source based
-     * on the state of the buffer or if appened segment was the final
-     * segment in the playlist.
-     *
-     * @param {number} [mediaIndex] the media index of segment we last appended
-     * @param {Object} [playlist] a media playlist object
-     * @return {boolean} do we need to call endOfStream on the MediaSource
-     */
-
-    isEndOfStream_(mediaIndex = this.mediaIndex, playlist = this.playlist_, partIndex = this.partIndex) {
-      if (!playlist || !this.mediaSource_) {
-        return false;
-      }
-      const segment = typeof mediaIndex === 'number' && playlist.segments[mediaIndex]; // mediaIndex is zero based but length is 1 based
-
-      const appendedLastSegment = mediaIndex + 1 === playlist.segments.length; // true if there are no parts, or this is the last part.
-
-      const appendedLastPart = !segment || !segment.parts || partIndex + 1 === segment.parts.length; // if we've buffered to the end of the video, we need to call endOfStream
-      // so that MediaSources can trigger the `ended` event when it runs out of
-      // buffered data instead of waiting for me
-
-      return playlist.endList && this.mediaSource_.readyState === 'open' && appendedLastSegment && appendedLastPart;
-    }
-    /**
-     * Determines what request should be made given current segment loader state.
-     *
-     * @return {Object} a request object that describes the segment/part to load
-     */
-
-    chooseNextRequest_() {
-      const buffered = this.buffered_();
-      const bufferedEnd = lastBufferedEnd(buffered) || 0;
-      const bufferedTime = timeAheadOf(buffered, this.currentTime_());
-      const preloaded = !this.hasPlayed_() && bufferedTime >= 1;
-      const haveEnoughBuffer = bufferedTime >= this.goalBufferLength_();
-      const segments = this.playlist_.segments; // return no segment if:
-      // 1. we don't have segments
-      // 2. The video has not yet played and we already downloaded a segment
-      // 3. we already have enough buffered time
-
-      if (!segments.length || preloaded || haveEnoughBuffer) {
-        return null;
-      }
-      this.syncPoint_ = this.syncPoint_ || this.syncController_.getSyncPoint(this.playlist_, this.duration_(), this.currentTimeline_, this.currentTime_(), this.loaderType_);
-      const next = {
-        partIndex: null,
-        mediaIndex: null,
-        startOfSegment: null,
-        playlist: this.playlist_,
-        isSyncRequest: Boolean(!this.syncPoint_)
-      };
-      if (next.isSyncRequest) {
-        next.mediaIndex = getSyncSegmentCandidate(this.currentTimeline_, segments, bufferedEnd);
-        this.logger_(`choose next request. Can not find sync point. Fallback to media Index: ${next.mediaIndex}`);
-      } else if (this.mediaIndex !== null) {
-        const segment = segments[this.mediaIndex];
-        const partIndex = typeof this.partIndex === 'number' ? this.partIndex : -1;
-        next.startOfSegment = segment.end ? segment.end : bufferedEnd;
-        if (segment.parts && segment.parts[partIndex + 1]) {
-          next.mediaIndex = this.mediaIndex;
-          next.partIndex = partIndex + 1;
-        } else {
-          next.mediaIndex = this.mediaIndex + 1;
-        }
-      } else {
-        let segmentIndex;
-        let partIndex;
-        let startTime;
-        const targetTime = this.fetchAtBuffer_ ? bufferedEnd : this.currentTime_();
-        if (this.mediaSequenceSync_) {
-          this.logger_(`chooseNextRequest_ request after Quality Switch:
-For TargetTime: ${targetTime}.
-CurrentTime: ${this.currentTime_()}
-BufferedEnd: ${bufferedEnd}
-Fetch At Buffer: ${this.fetchAtBuffer_}
-`, this.mediaSequenceSync_.diagnostics);
-        }
-        if (this.mediaSequenceSync_ && this.mediaSequenceSync_.isReliable) {
-          const syncInfo = this.getSyncInfoFromMediaSequenceSync_(targetTime);
-          if (!syncInfo) {
-            this.logger_('chooseNextRequest_ - no sync info found using media sequence sync'); // no match
-
-            return null;
-          }
-          this.logger_(`chooseNextRequest_ mediaSequence syncInfo (${syncInfo.start} --> ${syncInfo.end})`);
-          segmentIndex = syncInfo.segmentIndex;
-          partIndex = syncInfo.partIndex;
-          startTime = syncInfo.start;
-        } else {
-          this.logger_('chooseNextRequest_ - fallback to a regular segment selection algorithm, based on a syncPoint.'); // fallback
-
-          const mediaInfoForTime = Playlist.getMediaInfoForTime({
-            exactManifestTimings: this.exactManifestTimings,
-            playlist: this.playlist_,
-            currentTime: targetTime,
-            startingPartIndex: this.syncPoint_.partIndex,
-            startingSegmentIndex: this.syncPoint_.segmentIndex,
-            startTime: this.syncPoint_.time
-          });
-          segmentIndex = mediaInfoForTime.segmentIndex;
-          partIndex = mediaInfoForTime.partIndex;
-          startTime = mediaInfoForTime.startTime;
-        }
-        next.getMediaInfoForTime = this.fetchAtBuffer_ ? `bufferedEnd ${targetTime}` : `currentTime ${targetTime}`;
-        next.mediaIndex = segmentIndex;
-        next.startOfSegment = startTime;
-        next.partIndex = partIndex;
-        this.logger_(`choose next request. Playlist switched and we have a sync point. Media Index: ${next.mediaIndex} `);
-      }
-      const nextSegment = segments[next.mediaIndex];
-      let nextPart = nextSegment && typeof next.partIndex === 'number' && nextSegment.parts && nextSegment.parts[next.partIndex]; // if the next segment index is invalid or
-      // the next partIndex is invalid do not choose a next segment.
-
-      if (!nextSegment || typeof next.partIndex === 'number' && !nextPart) {
-        return null;
-      } // if the next segment has parts, and we don't have a partIndex.
-      // Set partIndex to 0
-
-      if (typeof next.partIndex !== 'number' && nextSegment.parts) {
-        next.partIndex = 0;
-        nextPart = nextSegment.parts[0];
-      } // independentSegments applies to every segment in a playlist. If independentSegments appears in a main playlist,
-      // it applies to each segment in each media playlist.
-      // https://datatracker.ietf.org/doc/html/draft-pantos-http-live-streaming-23#section-4.3.5.1
-
-      const hasIndependentSegments = this.vhs_.playlists && this.vhs_.playlists.main && this.vhs_.playlists.main.independentSegments || this.playlist_.independentSegments; // if we have no buffered data then we need to make sure
-      // that the next part we append is "independent" if possible.
-      // So we check if the previous part is independent, and request
-      // it if it is.
-
-      if (!bufferedTime && nextPart && !hasIndependentSegments && !nextPart.independent) {
-        if (next.partIndex === 0) {
-          const lastSegment = segments[next.mediaIndex - 1];
-          const lastSegmentLastPart = lastSegment.parts && lastSegment.parts.length && lastSegment.parts[lastSegment.parts.length - 1];
-          if (lastSegmentLastPart && lastSegmentLastPart.independent) {
-            next.mediaIndex -= 1;
-            next.partIndex = lastSegment.parts.length - 1;
-            next.independent = 'previous segment';
-          }
-        } else if (nextSegment.parts[next.partIndex - 1].independent) {
-          next.partIndex -= 1;
-          next.independent = 'previous part';
-        }
-      }
-      const ended = this.mediaSource_ && this.mediaSource_.readyState === 'ended'; // do not choose a next segment if all of the following:
-      // 1. this is the last segment in the playlist
-      // 2. end of stream has been called on the media source already
-      // 3. the player is not seeking
-
-      if (next.mediaIndex >= segments.length - 1 && ended && !this.seeking_()) {
-        return null;
-      }
-      if (this.shouldForceTimestampOffsetAfterResync_) {
-        this.shouldForceTimestampOffsetAfterResync_ = false;
-        next.forceTimestampOffset = true;
-        this.logger_('choose next request. Force timestamp offset after loader resync');
-      }
-      return this.generateSegmentInfo_(next);
-    }
-    getSyncInfoFromMediaSequenceSync_(targetTime) {
-      if (!this.mediaSequenceSync_) {
-        return null;
-      } // we should pull the target time to the least available time if we drop out of sync for any reason
-
-      const finalTargetTime = Math.max(targetTime, this.mediaSequenceSync_.start);
-      if (targetTime !== finalTargetTime) {
-        this.logger_(`getSyncInfoFromMediaSequenceSync_. Pulled target time from ${targetTime} to ${finalTargetTime}`);
-      }
-      const mediaSequenceSyncInfo = this.mediaSequenceSync_.getSyncInfoForTime(finalTargetTime);
-      if (!mediaSequenceSyncInfo) {
-        // no match at all
-        return null;
-      }
-      if (!mediaSequenceSyncInfo.isAppended) {
-        // has a perfect match
-        return mediaSequenceSyncInfo;
-      } // has match, but segment was already appended.
-      // attempt to auto-advance to the nearest next segment:
-
-      const nextMediaSequenceSyncInfo = this.mediaSequenceSync_.getSyncInfoForTime(mediaSequenceSyncInfo.end);
-      if (!nextMediaSequenceSyncInfo) {
-        // no match at all
-        return null;
-      }
-      if (nextMediaSequenceSyncInfo.isAppended) {
-        this.logger_('getSyncInfoFromMediaSequenceSync_: We encounter unexpected scenario where next media sequence sync info is also appended!');
-      } // got match with the nearest next segment
-
-      return nextMediaSequenceSyncInfo;
-    }
-    generateSegmentInfo_(options) {
-      const {
-        independent,
-        playlist,
-        mediaIndex,
-        startOfSegment,
-        isSyncRequest,
-        partIndex,
-        forceTimestampOffset,
-        getMediaInfoForTime
-      } = options;
-      const segment = playlist.segments[mediaIndex];
-      const part = typeof partIndex === 'number' && segment.parts[partIndex];
-      const segmentInfo = {
-        requestId: 'segment-loader-' + Math.random(),
-        // resolve the segment URL relative to the playlist
-        uri: part && part.resolvedUri || segment.resolvedUri,
-        // the segment's mediaIndex at the time it was requested
-        mediaIndex,
-        partIndex: part ? partIndex : null,
-        // whether or not to update the SegmentLoader's state with this
-        // segment's mediaIndex
-        isSyncRequest,
-        startOfSegment,
-        // the segment's playlist
-        playlist,
-        // unencrypted bytes of the segment
-        bytes: null,
-        // when a key is defined for this segment, the encrypted bytes
-        encryptedBytes: null,
-        // The target timestampOffset for this segment when we append it
-        // to the source buffer
-        timestampOffset: null,
-        // The timeline that the segment is in
-        timeline: segment.timeline,
-        // The expected duration of the segment in seconds
-        duration: part && part.duration || segment.duration,
-        // retain the segment in case the playlist updates while doing an async process
-        segment,
-        part,
-        byteLength: 0,
-        transmuxer: this.transmuxer_,
-        // type of getMediaInfoForTime that was used to get this segment
-        getMediaInfoForTime,
-        independent
-      };
-      const overrideCheck = typeof forceTimestampOffset !== 'undefined' ? forceTimestampOffset : this.isPendingTimestampOffset_;
-      segmentInfo.timestampOffset = this.timestampOffsetForSegment_({
-        segmentTimeline: segment.timeline,
-        currentTimeline: this.currentTimeline_,
-        startOfSegment,
-        buffered: this.buffered_(),
-        overrideCheck
-      });
-      const audioBufferedEnd = lastBufferedEnd(this.sourceUpdater_.audioBuffered());
-      if (typeof audioBufferedEnd === 'number') {
-        // since the transmuxer is using the actual timing values, but the buffer is
-        // adjusted by the timestamp offset, we must adjust the value here
-        segmentInfo.audioAppendStart = audioBufferedEnd - this.sourceUpdater_.audioTimestampOffset();
-      }
-      if (this.sourceUpdater_.videoBuffered().length) {
-        segmentInfo.gopsToAlignWith = gopsSafeToAlignWith(this.gopBuffer_,
-        // since the transmuxer is using the actual timing values, but the time is
-        // adjusted by the timestmap offset, we must adjust the value here
-        this.currentTime_() - this.sourceUpdater_.videoTimestampOffset(), this.timeMapping_);
-      }
-      return segmentInfo;
-    } // get the timestampoffset for a segment,
-    // added so that vtt segment loader can override and prevent
-    // adding timestamp offsets.
-
-    timestampOffsetForSegment_(options) {
-      return timestampOffsetForSegment(options);
-    }
-    /**
-     * Determines if the network has enough bandwidth to complete the current segment
-     * request in a timely manner. If not, the request will be aborted early and bandwidth
-     * updated to trigger a playlist switch.
-     *
-     * @param {Object} stats
-     *        Object containing stats about the request timing and size
-     * @private
-     */
-
-    earlyAbortWhenNeeded_(stats) {
-      if (this.vhs_.tech_.paused() ||
-      // Don't abort if the current playlist is on the lowestEnabledRendition
-      // TODO: Replace using timeout with a boolean indicating whether this playlist is
-      //       the lowestEnabledRendition.
-      !this.xhrOptions_.timeout ||
-      // Don't abort if we have no bandwidth information to estimate segment sizes
-      !this.playlist_.attributes.BANDWIDTH) {
-        return;
-      } // Wait at least 1 second since the first byte of data has been received before
-      // using the calculated bandwidth from the progress event to allow the bitrate
-      // to stabilize
-
-      if (Date.now() - (stats.firstBytesReceivedAt || Date.now()) < 1000) {
-        return;
-      }
-      const currentTime = this.currentTime_();
-      const measuredBandwidth = stats.bandwidth;
-      const segmentDuration = this.pendingSegment_.duration;
-      const requestTimeRemaining = Playlist.estimateSegmentRequestTime(segmentDuration, measuredBandwidth, this.playlist_, stats.bytesReceived); // Subtract 1 from the timeUntilRebuffer so we still consider an early abort
-      // if we are only left with less than 1 second when the request completes.
-      // A negative timeUntilRebuffering indicates we are already rebuffering
-
-      const timeUntilRebuffer$1 = timeUntilRebuffer(this.buffered_(), currentTime, this.vhs_.tech_.playbackRate()) - 1; // Only consider aborting early if the estimated time to finish the download
-      // is larger than the estimated time until the player runs out of forward buffer
-
-      if (requestTimeRemaining <= timeUntilRebuffer$1) {
-        return;
-      }
-      const switchCandidate = minRebufferMaxBandwidthSelector({
-        main: this.vhs_.playlists.main,
-        currentTime,
-        bandwidth: measuredBandwidth,
-        duration: this.duration_(),
-        segmentDuration,
-        timeUntilRebuffer: timeUntilRebuffer$1,
-        currentTimeline: this.currentTimeline_,
-        syncController: this.syncController_
-      });
-      if (!switchCandidate) {
-        return;
-      }
-      const rebufferingImpact = requestTimeRemaining - timeUntilRebuffer$1;
-      const timeSavedBySwitching = rebufferingImpact - switchCandidate.rebufferingImpact;
-      let minimumTimeSaving = 0.5; // If we are already rebuffering, increase the amount of variance we add to the
-      // potential round trip time of the new request so that we are not too aggressive
-      // with switching to a playlist that might save us a fraction of a second.
-
-      if (timeUntilRebuffer$1 <= TIME_FUDGE_FACTOR) {
-        minimumTimeSaving = 1;
-      }
-      if (!switchCandidate.playlist || switchCandidate.playlist.uri === this.playlist_.uri || timeSavedBySwitching < minimumTimeSaving) {
-        return;
-      } // set the bandwidth to that of the desired playlist being sure to scale by
-      // BANDWIDTH_VARIANCE and add one so the playlist selector does not exclude it
-      // don't trigger a bandwidthupdate as the bandwidth is artifial
-
-      this.bandwidth = switchCandidate.playlist.attributes.BANDWIDTH * Config.BANDWIDTH_VARIANCE + 1;
-      this.trigger('earlyabort');
-    }
-    handleAbort_(segmentInfo) {
-      this.logger_(`Aborting ${segmentInfoString(segmentInfo)}`);
-      this.mediaRequestsAborted += 1;
-    }
-    /**
-     * XHR `progress` event handler
-     *
-     * @param {Event}
-     *        The XHR `progress` event
-     * @param {Object} simpleSegment
-     *        A simplified segment object copy
-     * @private
-     */
-
-    handleProgress_(event, simpleSegment) {
-      this.earlyAbortWhenNeeded_(simpleSegment.stats);
-      if (this.checkForAbort_(simpleSegment.requestId)) {
-        return;
-      }
-      this.trigger('progress');
-    }
-    handleTrackInfo_(simpleSegment, trackInfo) {
-      this.earlyAbortWhenNeeded_(simpleSegment.stats);
-      if (this.checkForAbort_(simpleSegment.requestId)) {
-        return;
-      }
-      if (this.checkForIllegalMediaSwitch(trackInfo)) {
-        return;
-      }
-      trackInfo = trackInfo || {}; // When we have track info, determine what media types this loader is dealing with.
-      // Guard against cases where we're not getting track info at all until we are
-      // certain that all streams will provide it.
-
-      if (!shallowEqual(this.currentMediaInfo_, trackInfo)) {
-        this.appendInitSegment_ = {
-          audio: true,
-          video: true
-        };
-        this.startingMediaInfo_ = trackInfo;
-        this.currentMediaInfo_ = trackInfo;
-        this.logger_('trackinfo update', trackInfo);
-        this.trigger('trackinfo');
-      } // trackinfo may cause an abort if the trackinfo
-      // causes a codec change to an unsupported codec.
-
-      if (this.checkForAbort_(simpleSegment.requestId)) {
-        return;
-      } // set trackinfo on the pending segment so that
-      // it can append.
-
-      this.pendingSegment_.trackInfo = trackInfo; // check if any calls were waiting on the track info
-
-      if (this.hasEnoughInfoToAppend_()) {
-        this.processCallQueue_();
-      }
-    }
-    handleTimingInfo_(simpleSegment, mediaType, timeType, time) {
-      this.earlyAbortWhenNeeded_(simpleSegment.stats);
-      if (this.checkForAbort_(simpleSegment.requestId)) {
-        return;
-      }
-      const segmentInfo = this.pendingSegment_;
-      const timingInfoProperty = timingInfoPropertyForMedia(mediaType);
-      segmentInfo[timingInfoProperty] = segmentInfo[timingInfoProperty] || {};
-      segmentInfo[timingInfoProperty][timeType] = time;
-      this.logger_(`timinginfo: ${mediaType} - ${timeType} - ${time}`); // check if any calls were waiting on the timing info
-
-      if (this.hasEnoughInfoToAppend_()) {
-        this.processCallQueue_();
-      }
-    }
-    handleCaptions_(simpleSegment, captionData) {
-      this.earlyAbortWhenNeeded_(simpleSegment.stats);
-      if (this.checkForAbort_(simpleSegment.requestId)) {
-        return;
-      } // This could only happen with fmp4 segments, but
-      // should still not happen in general
-
-      if (captionData.length === 0) {
-        this.logger_('SegmentLoader received no captions from a caption event');
-        return;
-      }
-      const segmentInfo = this.pendingSegment_; // Wait until we have some video data so that caption timing
-      // can be adjusted by the timestamp offset
-
-      if (!segmentInfo.hasAppendedData_) {
-        this.metadataQueue_.caption.push(this.handleCaptions_.bind(this, simpleSegment, captionData));
-        return;
-      }
-      const timestampOffset = this.sourceUpdater_.videoTimestampOffset() === null ? this.sourceUpdater_.audioTimestampOffset() : this.sourceUpdater_.videoTimestampOffset();
-      const captionTracks = {}; // get total start/end and captions for each track/stream
-
-      captionData.forEach(caption => {
-        // caption.stream is actually a track name...
-        // set to the existing values in tracks or default values
-        captionTracks[caption.stream] = captionTracks[caption.stream] || {
-          // Infinity, as any other value will be less than this
-          startTime: Infinity,
-          captions: [],
-          // 0 as an other value will be more than this
-          endTime: 0
-        };
-        const captionTrack = captionTracks[caption.stream];
-        captionTrack.startTime = Math.min(captionTrack.startTime, caption.startTime + timestampOffset);
-        captionTrack.endTime = Math.max(captionTrack.endTime, caption.endTime + timestampOffset);
-        captionTrack.captions.push(caption);
-      });
-      Object.keys(captionTracks).forEach(trackName => {
-        const {
-          startTime,
-          endTime,
-          captions
-        } = captionTracks[trackName];
-        const inbandTextTracks = this.inbandTextTracks_;
-        this.logger_(`adding cues from ${startTime} -> ${endTime} for ${trackName}`);
-        createCaptionsTrackIfNotExists(inbandTextTracks, this.vhs_.tech_, trackName); // clear out any cues that start and end at the same time period for the same track.
-        // We do this because a rendition change that also changes the timescale for captions
-        // will result in captions being re-parsed for certain segments. If we add them again
-        // without clearing we will have two of the same captions visible.
-
-        removeCuesFromTrack(startTime, endTime, inbandTextTracks[trackName]);
-        addCaptionData({
-          captionArray: captions,
-          inbandTextTracks,
-          timestampOffset
-        });
-      }); // Reset stored captions since we added parsed
-      // captions to a text track at this point
-
-      if (this.transmuxer_) {
-        this.transmuxer_.postMessage({
-          action: 'clearParsedMp4Captions'
-        });
-      }
-    }
-    handleId3_(simpleSegment, id3Frames, dispatchType) {
-      this.earlyAbortWhenNeeded_(simpleSegment.stats);
-      if (this.checkForAbort_(simpleSegment.requestId)) {
-        return;
-      }
-      const segmentInfo = this.pendingSegment_; // we need to have appended data in order for the timestamp offset to be set
-
-      if (!segmentInfo.hasAppendedData_) {
-        this.metadataQueue_.id3.push(this.handleId3_.bind(this, simpleSegment, id3Frames, dispatchType));
-        return;
-      }
-      this.addMetadataToTextTrack(dispatchType, id3Frames, this.duration_());
-    }
-    processMetadataQueue_() {
-      this.metadataQueue_.id3.forEach(fn => fn());
-      this.metadataQueue_.caption.forEach(fn => fn());
-      this.metadataQueue_.id3 = [];
-      this.metadataQueue_.caption = [];
-    }
-    processCallQueue_() {
-      const callQueue = this.callQueue_; // Clear out the queue before the queued functions are run, since some of the
-      // functions may check the length of the load queue and default to pushing themselves
-      // back onto the queue.
-
-      this.callQueue_ = [];
-      callQueue.forEach(fun => fun());
-    }
-    processLoadQueue_() {
-      const loadQueue = this.loadQueue_; // Clear out the queue before the queued functions are run, since some of the
-      // functions may check the length of the load queue and default to pushing themselves
-      // back onto the queue.
-
-      this.loadQueue_ = [];
-      loadQueue.forEach(fun => fun());
-    }
-    /**
-     * Determines whether the loader has enough info to load the next segment.
-     *
-     * @return {boolean}
-     *         Whether or not the loader has enough info to load the next segment
-     */
-
-    hasEnoughInfoToLoad_() {
-      // Since primary timing goes by video, only the audio loader potentially needs to wait
-      // to load.
-      if (this.loaderType_ !== 'audio') {
-        return true;
-      }
-      const segmentInfo = this.pendingSegment_; // A fill buffer must have already run to establish a pending segment before there's
-      // enough info to load.
-
-      if (!segmentInfo) {
-        return false;
-      } // The first segment can and should be loaded immediately so that source buffers are
-      // created together (before appending). Source buffer creation uses the presence of
-      // audio and video data to determine whether to create audio/video source buffers, and
-      // uses processed (transmuxed or parsed) media to determine the types required.
-
-      if (!this.getCurrentMediaInfo_()) {
-        return true;
-      }
-      if (
-      // Technically, instead of waiting to load a segment on timeline changes, a segment
-      // can be requested and downloaded and only wait before it is transmuxed or parsed.
-      // But in practice, there are a few reasons why it is better to wait until a loader
-      // is ready to append that segment before requesting and downloading:
-      //
-      // 1. Because audio and main loaders cross discontinuities together, if this loader
-      //    is waiting for the other to catch up, then instead of requesting another
-      //    segment and using up more bandwidth, by not yet loading, more bandwidth is
-      //    allotted to the loader currently behind.
-      // 2. media-segment-request doesn't have to have logic to consider whether a segment
-      // is ready to be processed or not, isolating the queueing behavior to the loader.
-      // 3. The audio loader bases some of its segment properties on timing information
-      //    provided by the main loader, meaning that, if the logic for waiting on
-      //    processing was in media-segment-request, then it would also need to know how
-      //    to re-generate the segment information after the main loader caught up.
-      shouldWaitForTimelineChange({
-        timelineChangeController: this.timelineChangeController_,
-        currentTimeline: this.currentTimeline_,
-        segmentTimeline: segmentInfo.timeline,
-        loaderType: this.loaderType_,
-        audioDisabled: this.audioDisabled_
-      })) {
-        return false;
-      }
-      return true;
-    }
-    getCurrentMediaInfo_(segmentInfo = this.pendingSegment_) {
-      return segmentInfo && segmentInfo.trackInfo || this.currentMediaInfo_;
-    }
-    getMediaInfo_(segmentInfo = this.pendingSegment_) {
-      return this.getCurrentMediaInfo_(segmentInfo) || this.startingMediaInfo_;
-    }
-    getPendingSegmentPlaylist() {
-      return this.pendingSegment_ ? this.pendingSegment_.playlist : null;
-    }
-    hasEnoughInfoToAppend_() {
-      if (!this.sourceUpdater_.ready()) {
-        return false;
-      } // If content needs to be removed or the loader is waiting on an append reattempt,
-      // then no additional content should be appended until the prior append is resolved.
-
-      if (this.waitingOnRemove_ || this.quotaExceededErrorRetryTimeout_) {
-        return false;
-      }
-      const segmentInfo = this.pendingSegment_;
-      const trackInfo = this.getCurrentMediaInfo_(); // no segment to append any data for or
-      // we do not have information on this specific
-      // segment yet
-
-      if (!segmentInfo || !trackInfo) {
-        return false;
-      }
-      const {
-        hasAudio,
-        hasVideo,
-        isMuxed
-      } = trackInfo;
-      if (hasVideo && !segmentInfo.videoTimingInfo) {
-        return false;
-      } // muxed content only relies on video timing information for now.
-
-      if (hasAudio && !this.audioDisabled_ && !isMuxed && !segmentInfo.audioTimingInfo) {
-        return false;
-      }
-      if (shouldWaitForTimelineChange({
-        timelineChangeController: this.timelineChangeController_,
-        currentTimeline: this.currentTimeline_,
-        segmentTimeline: segmentInfo.timeline,
-        loaderType: this.loaderType_,
-        audioDisabled: this.audioDisabled_
-      })) {
-        return false;
-      }
-      return true;
-    }
-    handleData_(simpleSegment, result) {
-      this.earlyAbortWhenNeeded_(simpleSegment.stats);
-      if (this.checkForAbort_(simpleSegment.requestId)) {
-        return;
-      } // If there's anything in the call queue, then this data came later and should be
-      // executed after the calls currently queued.
-
-      if (this.callQueue_.length || !this.hasEnoughInfoToAppend_()) {
-        this.callQueue_.push(this.handleData_.bind(this, simpleSegment, result));
-        return;
-      }
-      const segmentInfo = this.pendingSegment_; // update the time mapping so we can translate from display time to media time
-
-      this.setTimeMapping_(segmentInfo.timeline); // for tracking overall stats
-
-      this.updateMediaSecondsLoaded_(segmentInfo.part || segmentInfo.segment); // Note that the state isn't changed from loading to appending. This is because abort
-      // logic may change behavior depending on the state, and changing state too early may
-      // inflate our estimates of bandwidth. In the future this should be re-examined to
-      // note more granular states.
-      // don't process and append data if the mediaSource is closed
-
-      if (this.mediaSource_.readyState === 'closed') {
-        return;
-      } // if this request included an initialization segment, save that data
-      // to the initSegment cache
-
-      if (simpleSegment.map) {
-        simpleSegment.map = this.initSegmentForMap(simpleSegment.map, true); // move over init segment properties to media request
-
-        segmentInfo.segment.map = simpleSegment.map;
-      } // if this request included a segment key, save that data in the cache
-
-      if (simpleSegment.key) {
-        this.segmentKey(simpleSegment.key, true);
-      }
-      segmentInfo.isFmp4 = simpleSegment.isFmp4;
-      segmentInfo.timingInfo = segmentInfo.timingInfo || {};
-      if (segmentInfo.isFmp4) {
-        this.trigger('fmp4');
-        segmentInfo.timingInfo.start = segmentInfo[timingInfoPropertyForMedia(result.type)].start;
-      } else {
-        const trackInfo = this.getCurrentMediaInfo_();
-        const useVideoTimingInfo = this.loaderType_ === 'main' && trackInfo && trackInfo.hasVideo;
-        let firstVideoFrameTimeForData;
-        if (useVideoTimingInfo) {
-          firstVideoFrameTimeForData = segmentInfo.videoTimingInfo.start;
-        } // Segment loader knows more about segment timing than the transmuxer (in certain
-        // aspects), so make any changes required for a more accurate start time.
-        // Don't set the end time yet, as the segment may not be finished processing.
-
-        segmentInfo.timingInfo.start = this.trueSegmentStart_({
-          currentStart: segmentInfo.timingInfo.start,
-          playlist: segmentInfo.playlist,
-          mediaIndex: segmentInfo.mediaIndex,
-          currentVideoTimestampOffset: this.sourceUpdater_.videoTimestampOffset(),
-          useVideoTimingInfo,
-          firstVideoFrameTimeForData,
-          videoTimingInfo: segmentInfo.videoTimingInfo,
-          audioTimingInfo: segmentInfo.audioTimingInfo
-        });
-      } // Init segments for audio and video only need to be appended in certain cases. Now
-      // that data is about to be appended, we can check the final cases to determine
-      // whether we should append an init segment.
-
-      this.updateAppendInitSegmentStatus(segmentInfo, result.type); // Timestamp offset should be updated once we get new data and have its timing info,
-      // as we use the start of the segment to offset the best guess (playlist provided)
-      // timestamp offset.
-
-      this.updateSourceBufferTimestampOffset_(segmentInfo); // if this is a sync request we need to determine whether it should
-      // be appended or not.
-
-      if (segmentInfo.isSyncRequest) {
-        // first save/update our timing info for this segment.
-        // this is what allows us to choose an accurate segment
-        // and the main reason we make a sync request.
-        this.updateTimingInfoEnd_(segmentInfo);
-        this.syncController_.saveSegmentTimingInfo({
-          segmentInfo,
-          shouldSaveTimelineMapping: this.loaderType_ === 'main'
-        });
-        const next = this.chooseNextRequest_(); // If the sync request isn't the segment that would be requested next
-        // after taking into account its timing info, do not append it.
-
-        if (next.mediaIndex !== segmentInfo.mediaIndex || next.partIndex !== segmentInfo.partIndex) {
-          this.logger_('sync segment was incorrect, not appending');
-          return;
-        } // otherwise append it like any other segment as our guess was correct.
-
-        this.logger_('sync segment was correct, appending');
-      } // Save some state so that in the future anything waiting on first append (and/or
-      // timestamp offset(s)) can process immediately. While the extra state isn't optimal,
-      // we need some notion of whether the timestamp offset or other relevant information
-      // has had a chance to be set.
-
-      segmentInfo.hasAppendedData_ = true; // Now that the timestamp offset should be set, we can append any waiting ID3 tags.
-
-      this.processMetadataQueue_();
-      this.appendData_(segmentInfo, result);
-    }
-    updateAppendInitSegmentStatus(segmentInfo, type) {
-      // alt audio doesn't manage timestamp offset
-      if (this.loaderType_ === 'main' && typeof segmentInfo.timestampOffset === 'number' &&
-      // in the case that we're handling partial data, we don't want to append an init
-      // segment for each chunk
-      !segmentInfo.changedTimestampOffset) {
-        // if the timestamp offset changed, the timeline may have changed, so we have to re-
-        // append init segments
-        this.appendInitSegment_ = {
-          audio: true,
-          video: true
-        };
-      }
-      if (this.playlistOfLastInitSegment_[type] !== segmentInfo.playlist) {
-        // make sure we append init segment on playlist changes, in case the media config
-        // changed
-        this.appendInitSegment_[type] = true;
-      }
-    }
-    getInitSegmentAndUpdateState_({
-      type,
-      initSegment,
-      map,
-      playlist
-    }) {
-      // "The EXT-X-MAP tag specifies how to obtain the Media Initialization Section
-      // (Section 3) required to parse the applicable Media Segments.  It applies to every
-      // Media Segment that appears after it in the Playlist until the next EXT-X-MAP tag
-      // or until the end of the playlist."
-      // https://tools.ietf.org/html/draft-pantos-http-live-streaming-23#section-4.3.2.5
-      if (map) {
-        const id = initSegmentId(map);
-        if (this.activeInitSegmentId_ === id) {
-          // don't need to re-append the init segment if the ID matches
-          return null;
-        } // a map-specified init segment takes priority over any transmuxed (or otherwise
-        // obtained) init segment
-        //
-        // this also caches the init segment for later use
-
-        initSegment = this.initSegmentForMap(map, true).bytes;
-        this.activeInitSegmentId_ = id;
-      } // We used to always prepend init segments for video, however, that shouldn't be
-      // necessary. Instead, we should only append on changes, similar to what we've always
-      // done for audio. This is more important (though may not be that important) for
-      // frame-by-frame appending for LHLS, simply because of the increased quantity of
-      // appends.
-
-      if (initSegment && this.appendInitSegment_[type]) {
-        // Make sure we track the playlist that we last used for the init segment, so that
-        // we can re-append the init segment in the event that we get data from a new
-        // playlist. Discontinuities and track changes are handled in other sections.
-        this.playlistOfLastInitSegment_[type] = playlist; // Disable future init segment appends for this type. Until a change is necessary.
-
-        this.appendInitSegment_[type] = false; // we need to clear out the fmp4 active init segment id, since
-        // we are appending the muxer init segment
-
-        this.activeInitSegmentId_ = null;
-        return initSegment;
-      }
-      return null;
-    }
-    handleQuotaExceededError_({
-      segmentInfo,
-      type,
-      bytes
-    }, error) {
-      const audioBuffered = this.sourceUpdater_.audioBuffered();
-      const videoBuffered = this.sourceUpdater_.videoBuffered(); // For now we're ignoring any notion of gaps in the buffer, but they, in theory,
-      // should be cleared out during the buffer removals. However, log in case it helps
-      // debug.
-
-      if (audioBuffered.length > 1) {
-        this.logger_('On QUOTA_EXCEEDED_ERR, found gaps in the audio buffer: ' + timeRangesToArray(audioBuffered).join(', '));
-      }
-      if (videoBuffered.length > 1) {
-        this.logger_('On QUOTA_EXCEEDED_ERR, found gaps in the video buffer: ' + timeRangesToArray(videoBuffered).join(', '));
-      }
-      const audioBufferStart = audioBuffered.length ? audioBuffered.start(0) : 0;
-      const audioBufferEnd = audioBuffered.length ? audioBuffered.end(audioBuffered.length - 1) : 0;
-      const videoBufferStart = videoBuffered.length ? videoBuffered.start(0) : 0;
-      const videoBufferEnd = videoBuffered.length ? videoBuffered.end(videoBuffered.length - 1) : 0;
-      if (audioBufferEnd - audioBufferStart <= MIN_BACK_BUFFER && videoBufferEnd - videoBufferStart <= MIN_BACK_BUFFER) {
-        // Can't remove enough buffer to make room for new segment (or the browser doesn't
-        // allow for appends of segments this size). In the future, it may be possible to
-        // split up the segment and append in pieces, but for now, error out this playlist
-        // in an attempt to switch to a more manageable rendition.
-        this.logger_('On QUOTA_EXCEEDED_ERR, single segment too large to append to ' + 'buffer, triggering an error. ' + `Appended byte length: ${bytes.byteLength}, ` + `audio buffer: ${timeRangesToArray(audioBuffered).join(', ')}, ` + `video buffer: ${timeRangesToArray(videoBuffered).join(', ')}, `);
-        this.error({
-          message: 'Quota exceeded error with append of a single segment of content',
-          excludeUntil: Infinity,
-          metadata: {
-            errorType: videojs.Error.SegmentExceedsSourceBufferQuota
-          }
-        });
-        this.trigger('error');
-        return;
-      } // To try to resolve the quota exceeded error, clear back buffer and retry. This means
-      // that the segment-loader should block on future events until this one is handled, so
-      // that it doesn't keep moving onto further segments. Adding the call to the call
-      // queue will prevent further appends until waitingOnRemove_ and
-      // quotaExceededErrorRetryTimeout_ are cleared.
-      //
-      // Note that this will only block the current loader. In the case of demuxed content,
-      // the other load may keep filling as fast as possible. In practice, this should be
-      // OK, as it is a rare case when either audio has a high enough bitrate to fill up a
-      // source buffer, or video fills without enough room for audio to append (and without
-      // the availability of clearing out seconds of back buffer to make room for audio).
-      // But it might still be good to handle this case in the future as a TODO.
-
-      this.waitingOnRemove_ = true;
-      this.callQueue_.push(this.appendToSourceBuffer_.bind(this, {
-        segmentInfo,
-        type,
-        bytes
-      }));
-      const currentTime = this.currentTime_(); // Try to remove as much audio and video as possible to make room for new content
-      // before retrying.
-
-      const timeToRemoveUntil = currentTime - MIN_BACK_BUFFER;
-      this.logger_(`On QUOTA_EXCEEDED_ERR, removing audio/video from 0 to ${timeToRemoveUntil}`);
-      this.remove(0, timeToRemoveUntil, () => {
-        this.logger_(`On QUOTA_EXCEEDED_ERR, retrying append in ${MIN_BACK_BUFFER}s`);
-        this.waitingOnRemove_ = false; // wait the length of time alotted in the back buffer to prevent wasted
-        // attempts (since we can't clear less than the minimum)
-
-        this.quotaExceededErrorRetryTimeout_ = window.setTimeout(() => {
-          this.logger_('On QUOTA_EXCEEDED_ERR, re-processing call queue');
-          this.quotaExceededErrorRetryTimeout_ = null;
-          this.processCallQueue_();
-        }, MIN_BACK_BUFFER * 1000);
-      }, true);
-    }
-    handleAppendError_({
-      segmentInfo,
-      type,
-      bytes
-    }, error) {
-      // if there's no error, nothing to do
-      if (!error) {
-        return;
-      }
-      if (error.code === QUOTA_EXCEEDED_ERR) {
-        this.handleQuotaExceededError_({
-          segmentInfo,
-          type,
-          bytes
-        }); // A quota exceeded error should be recoverable with a future re-append, so no need
-        // to trigger an append error.
-
-        return;
-      }
-      this.logger_('Received non QUOTA_EXCEEDED_ERR on append', error); // If an append errors, we often can't recover.
-      // (see https://w3c.github.io/media-source/#sourcebuffer-append-error).
-      //
-      // Trigger a special error so that it can be handled separately from normal,
-      // recoverable errors.
-
-      this.error({
-        message: `${type} append of ${bytes.length}b failed for segment ` + `#${segmentInfo.mediaIndex} in playlist ${segmentInfo.playlist.id}`,
-        metadata: {
-          errorType: videojs.Error.SegmentAppendError
-        }
-      });
-      this.trigger('appenderror');
-    }
-    appendToSourceBuffer_({
-      segmentInfo,
-      type,
-      initSegment,
-      data,
-      bytes
-    }) {
-      // If this is a re-append, bytes were already created and don't need to be recreated
-      if (!bytes) {
-        const segments = [data];
-        let byteLength = data.byteLength;
-        if (initSegment) {
-          // if the media initialization segment is changing, append it before the content
-          // segment
-          segments.unshift(initSegment);
-          byteLength += initSegment.byteLength;
-        } // Technically we should be OK appending the init segment separately, however, we
-        // haven't yet tested that, and prepending is how we have always done things.
-
-        bytes = concatSegments({
-          bytes: byteLength,
-          segments
-        });
-      }
-      this.sourceUpdater_.appendBuffer({
-        segmentInfo,
-        type,
-        bytes
-      }, this.handleAppendError_.bind(this, {
-        segmentInfo,
-        type,
-        bytes
-      }));
-    }
-    handleSegmentTimingInfo_(type, requestId, segmentTimingInfo) {
-      if (!this.pendingSegment_ || requestId !== this.pendingSegment_.requestId) {
-        return;
-      }
-      const segment = this.pendingSegment_.segment;
-      const timingInfoProperty = `${type}TimingInfo`;
-      if (!segment[timingInfoProperty]) {
-        segment[timingInfoProperty] = {};
-      }
-      segment[timingInfoProperty].transmuxerPrependedSeconds = segmentTimingInfo.prependedContentDuration || 0;
-      segment[timingInfoProperty].transmuxedPresentationStart = segmentTimingInfo.start.presentation;
-      segment[timingInfoProperty].transmuxedDecodeStart = segmentTimingInfo.start.decode;
-      segment[timingInfoProperty].transmuxedPresentationEnd = segmentTimingInfo.end.presentation;
-      segment[timingInfoProperty].transmuxedDecodeEnd = segmentTimingInfo.end.decode; // mainly used as a reference for debugging
-
-      segment[timingInfoProperty].baseMediaDecodeTime = segmentTimingInfo.baseMediaDecodeTime;
-    }
-    appendData_(segmentInfo, result) {
-      const {
-        type,
-        data
-      } = result;
-      if (!data || !data.byteLength) {
-        return;
-      }
-      if (type === 'audio' && this.audioDisabled_) {
-        return;
-      }
-      const initSegment = this.getInitSegmentAndUpdateState_({
-        type,
-        initSegment: result.initSegment,
-        playlist: segmentInfo.playlist,
-        map: segmentInfo.isFmp4 ? segmentInfo.segment.map : null
-      });
-      this.appendToSourceBuffer_({
-        segmentInfo,
-        type,
-        initSegment,
-        data
-      });
-    }
-    /**
-     * load a specific segment from a request into the buffer
-     *
-     * @private
-     */
-
-    loadSegment_(segmentInfo) {
-      this.state = 'WAITING';
-      this.pendingSegment_ = segmentInfo;
-      this.trimBackBuffer_(segmentInfo);
-      if (typeof segmentInfo.timestampOffset === 'number') {
-        if (this.transmuxer_) {
-          this.transmuxer_.postMessage({
-            action: 'clearAllMp4Captions'
-          });
-        }
-      }
-      if (!this.hasEnoughInfoToLoad_()) {
-        this.loadQueue_.push(() => {
-          // regenerate the audioAppendStart, timestampOffset, etc as they
-          // may have changed since this function was added to the queue.
-          const options = _extends$1({}, segmentInfo, {
-            forceTimestampOffset: true
-          });
-          _extends$1(segmentInfo, this.generateSegmentInfo_(options));
-          this.isPendingTimestampOffset_ = false;
-          this.updateTransmuxerAndRequestSegment_(segmentInfo);
-        });
-        return;
-      }
-      this.updateTransmuxerAndRequestSegment_(segmentInfo);
-    }
-    updateTransmuxerAndRequestSegment_(segmentInfo) {
-      // We'll update the source buffer's timestamp offset once we have transmuxed data, but
-      // the transmuxer still needs to be updated before then.
-      //
-      // Even though keepOriginalTimestamps is set to true for the transmuxer, timestamp
-      // offset must be passed to the transmuxer for stream correcting adjustments.
-      if (this.shouldUpdateTransmuxerTimestampOffset_(segmentInfo.timestampOffset)) {
-        this.gopBuffer_.length = 0; // gopsToAlignWith was set before the GOP buffer was cleared
-
-        segmentInfo.gopsToAlignWith = [];
-        this.timeMapping_ = 0; // reset values in the transmuxer since a discontinuity should start fresh
-
-        this.transmuxer_.postMessage({
-          action: 'reset'
-        });
-        this.transmuxer_.postMessage({
-          action: 'setTimestampOffset',
-          timestampOffset: segmentInfo.timestampOffset
-        });
-      }
-      const simpleSegment = this.createSimplifiedSegmentObj_(segmentInfo);
-      const isEndOfStream = this.isEndOfStream_(segmentInfo.mediaIndex, segmentInfo.playlist, segmentInfo.partIndex);
-      const isWalkingForward = this.mediaIndex !== null;
-      const isDiscontinuity = segmentInfo.timeline !== this.currentTimeline_ &&
-      // currentTimeline starts at -1, so we shouldn't end the timeline switching to 0,
-      // the first timeline
-      segmentInfo.timeline > 0;
-      const isEndOfTimeline = isEndOfStream || isWalkingForward && isDiscontinuity;
-      this.logger_(`Requesting
-${compactSegmentUrlDescription(segmentInfo.uri)}
-${segmentInfoString(segmentInfo)}`); // If there's an init segment associated with this segment, but it is not cached (identified by a lack of bytes),
-      // then this init segment has never been seen before and should be appended.
-      //
-      // At this point the content type (audio/video or both) is not yet known, but it should be safe to set
-      // both to true and leave the decision of whether to append the init segment to append time.
-
-      if (simpleSegment.map && !simpleSegment.map.bytes) {
-        this.logger_('going to request init segment.');
-        this.appendInitSegment_ = {
-          video: true,
-          audio: true
-        };
-      }
-      segmentInfo.abortRequests = mediaSegmentRequest({
-        xhr: this.vhs_.xhr,
-        xhrOptions: this.xhrOptions_,
-        decryptionWorker: this.decrypter_,
-        segment: simpleSegment,
-        abortFn: this.handleAbort_.bind(this, segmentInfo),
-        progressFn: this.handleProgress_.bind(this),
-        trackInfoFn: this.handleTrackInfo_.bind(this),
-        timingInfoFn: this.handleTimingInfo_.bind(this),
-        videoSegmentTimingInfoFn: this.handleSegmentTimingInfo_.bind(this, 'video', segmentInfo.requestId),
-        audioSegmentTimingInfoFn: this.handleSegmentTimingInfo_.bind(this, 'audio', segmentInfo.requestId),
-        captionsFn: this.handleCaptions_.bind(this),
-        isEndOfTimeline,
-        endedTimelineFn: () => {
-          this.logger_('received endedtimeline callback');
-        },
-        id3Fn: this.handleId3_.bind(this),
-        dataFn: this.handleData_.bind(this),
-        doneFn: this.segmentRequestFinished_.bind(this),
-        onTransmuxerLog: ({
-          message,
-          level,
-          stream
-        }) => {
-          this.logger_(`${segmentInfoString(segmentInfo)} logged from transmuxer stream ${stream} as a ${level}: ${message}`);
-        }
-      });
-    }
-    /**
-     * trim the back buffer so that we don't have too much data
-     * in the source buffer
-     *
-     * @private
-     *
-     * @param {Object} segmentInfo - the current segment
-     */
-
-    trimBackBuffer_(segmentInfo) {
-      const removeToTime = safeBackBufferTrimTime(this.seekable_(), this.currentTime_(), this.playlist_.targetDuration || 10); // Chrome has a hard limit of 150MB of
-      // buffer and a very conservative "garbage collector"
-      // We manually clear out the old buffer to ensure
-      // we don't trigger the QuotaExceeded error
-      // on the source buffer during subsequent appends
-
-      if (removeToTime > 0) {
-        this.remove(0, removeToTime);
-      }
-    }
-    /**
-     * created a simplified copy of the segment object with just the
-     * information necessary to perform the XHR and decryption
-     *
-     * @private
-     *
-     * @param {Object} segmentInfo - the current segment
-     * @return {Object} a simplified segment object copy
-     */
-
-    createSimplifiedSegmentObj_(segmentInfo) {
-      const segment = segmentInfo.segment;
-      const part = segmentInfo.part;
-      const simpleSegment = {
-        resolvedUri: part ? part.resolvedUri : segment.resolvedUri,
-        byterange: part ? part.byterange : segment.byterange,
-        requestId: segmentInfo.requestId,
-        transmuxer: segmentInfo.transmuxer,
-        audioAppendStart: segmentInfo.audioAppendStart,
-        gopsToAlignWith: segmentInfo.gopsToAlignWith,
-        part: segmentInfo.part
-      };
-      const previousSegment = segmentInfo.playlist.segments[segmentInfo.mediaIndex - 1];
-      if (previousSegment && previousSegment.timeline === segment.timeline) {
-        // The baseStartTime of a segment is used to handle rollover when probing the TS
-        // segment to retrieve timing information. Since the probe only looks at the media's
-        // times (e.g., PTS and DTS values of the segment), and doesn't consider the
-        // player's time (e.g., player.currentTime()), baseStartTime should reflect the
-        // media time as well. transmuxedDecodeEnd represents the end time of a segment, in
-        // seconds of media time, so should be used here. The previous segment is used since
-        // the end of the previous segment should represent the beginning of the current
-        // segment, so long as they are on the same timeline.
-        if (previousSegment.videoTimingInfo) {
-          simpleSegment.baseStartTime = previousSegment.videoTimingInfo.transmuxedDecodeEnd;
-        } else if (previousSegment.audioTimingInfo) {
-          simpleSegment.baseStartTime = previousSegment.audioTimingInfo.transmuxedDecodeEnd;
-        }
-      }
-      if (segment.key) {
-        // if the media sequence is greater than 2^32, the IV will be incorrect
-        // assuming 10s segments, that would be about 1300 years
-        const iv = segment.key.iv || new Uint32Array([0, 0, 0, segmentInfo.mediaIndex + segmentInfo.playlist.mediaSequence]);
-        simpleSegment.key = this.segmentKey(segment.key);
-        simpleSegment.key.iv = iv;
-      }
-      if (segment.map) {
-        simpleSegment.map = this.initSegmentForMap(segment.map);
-      }
-      return simpleSegment;
-    }
-    saveTransferStats_(stats) {
-      // every request counts as a media request even if it has been aborted
-      // or canceled due to a timeout
-      this.mediaRequests += 1;
-      if (stats) {
-        this.mediaBytesTransferred += stats.bytesReceived;
-        this.mediaTransferDuration += stats.roundTripTime;
-      }
-    }
-    saveBandwidthRelatedStats_(duration, stats) {
-      // byteLength will be used for throughput, and should be based on bytes receieved,
-      // which we only know at the end of the request and should reflect total bytes
-      // downloaded rather than just bytes processed from components of the segment
-      this.pendingSegment_.byteLength = stats.bytesReceived;
-      if (duration < MIN_SEGMENT_DURATION_TO_SAVE_STATS) {
-        this.logger_(`Ignoring segment's bandwidth because its duration of ${duration}` + ` is less than the min to record ${MIN_SEGMENT_DURATION_TO_SAVE_STATS}`);
-        return;
-      }
-      this.bandwidth = stats.bandwidth;
-      this.roundTrip = stats.roundTripTime;
-    }
-    handleTimeout_() {
-      // although the VTT segment loader bandwidth isn't really used, it's good to
-      // maintain functinality between segment loaders
-      this.mediaRequestsTimedout += 1;
-      this.bandwidth = 1;
-      this.roundTrip = NaN;
-      this.trigger('bandwidthupdate');
-      this.trigger('timeout');
-    }
-    /**
-     * Handle the callback from the segmentRequest function and set the
-     * associated SegmentLoader state and errors if necessary
-     *
-     * @private
-     */
-
-    segmentRequestFinished_(error, simpleSegment, result) {
-      // TODO handle special cases, e.g., muxed audio/video but only audio in the segment
-      // check the call queue directly since this function doesn't need to deal with any
-      // data, and can continue even if the source buffers are not set up and we didn't get
-      // any data from the segment
-      if (this.callQueue_.length) {
-        this.callQueue_.push(this.segmentRequestFinished_.bind(this, error, simpleSegment, result));
-        return;
-      }
-      this.saveTransferStats_(simpleSegment.stats); // The request was aborted and the SegmentLoader has already been reset
-
-      if (!this.pendingSegment_) {
-        return;
-      } // the request was aborted and the SegmentLoader has already started
-      // another request. this can happen when the timeout for an aborted
-      // request triggers due to a limitation in the XHR library
-      // do not count this as any sort of request or we risk double-counting
-
-      if (simpleSegment.requestId !== this.pendingSegment_.requestId) {
-        return;
-      } // an error occurred from the active pendingSegment_ so reset everything
-
-      if (error) {
-        this.pendingSegment_ = null;
-        this.state = 'READY'; // aborts are not a true error condition and nothing corrective needs to be done
-
-        if (error.code === REQUEST_ERRORS.ABORTED) {
-          return;
-        }
-        this.pause(); // the error is really just that at least one of the requests timed-out
-        // set the bandwidth to a very low value and trigger an ABR switch to
-        // take emergency action
-
-        if (error.code === REQUEST_ERRORS.TIMEOUT) {
-          this.handleTimeout_();
-          return;
-        } // if control-flow has arrived here, then the error is real
-        // emit an error event to exclude the current playlist
-
-        this.mediaRequestsErrored += 1;
-        this.error(error);
-        this.trigger('error');
-        return;
-      }
-      const segmentInfo = this.pendingSegment_; // the response was a success so set any bandwidth stats the request
-      // generated for ABR purposes
-
-      this.saveBandwidthRelatedStats_(segmentInfo.duration, simpleSegment.stats);
-      segmentInfo.endOfAllRequests = simpleSegment.endOfAllRequests;
-      if (result.gopInfo) {
-        this.gopBuffer_ = updateGopBuffer(this.gopBuffer_, result.gopInfo, this.safeAppend_);
-      } // Although we may have already started appending on progress, we shouldn't switch the
-      // state away from loading until we are officially done loading the segment data.
-
-      this.state = 'APPENDING'; // used for testing
-
-      this.trigger('appending');
-      this.waitForAppendsToComplete_(segmentInfo);
-    }
-    setTimeMapping_(timeline) {
-      const timelineMapping = this.syncController_.mappingForTimeline(timeline);
-      if (timelineMapping !== null) {
-        this.timeMapping_ = timelineMapping;
-      }
-    }
-    updateMediaSecondsLoaded_(segment) {
-      if (typeof segment.start === 'number' && typeof segment.end === 'number') {
-        this.mediaSecondsLoaded += segment.end - segment.start;
-      } else {
-        this.mediaSecondsLoaded += segment.duration;
-      }
-    }
-    shouldUpdateTransmuxerTimestampOffset_(timestampOffset) {
-      if (timestampOffset === null) {
-        return false;
-      } // note that we're potentially using the same timestamp offset for both video and
-      // audio
-
-      if (this.loaderType_ === 'main' && timestampOffset !== this.sourceUpdater_.videoTimestampOffset()) {
-        return true;
-      }
-      if (!this.audioDisabled_ && timestampOffset !== this.sourceUpdater_.audioTimestampOffset()) {
-        return true;
-      }
-      return false;
-    }
-    trueSegmentStart_({
-      currentStart,
-      playlist,
-      mediaIndex,
-      firstVideoFrameTimeForData,
-      currentVideoTimestampOffset,
-      useVideoTimingInfo,
-      videoTimingInfo,
-      audioTimingInfo
-    }) {
-      if (typeof currentStart !== 'undefined') {
-        // if start was set once, keep using it
-        return currentStart;
-      }
-      if (!useVideoTimingInfo) {
-        return audioTimingInfo.start;
-      }
-      const previousSegment = playlist.segments[mediaIndex - 1]; // The start of a segment should be the start of the first full frame contained
-      // within that segment. Since the transmuxer maintains a cache of incomplete data
-      // from and/or the last frame seen, the start time may reflect a frame that starts
-      // in the previous segment. Check for that case and ensure the start time is
-      // accurate for the segment.
-
-      if (mediaIndex === 0 || !previousSegment || typeof previousSegment.start === 'undefined' || previousSegment.end !== firstVideoFrameTimeForData + currentVideoTimestampOffset) {
-        return firstVideoFrameTimeForData;
-      }
-      return videoTimingInfo.start;
-    }
-    waitForAppendsToComplete_(segmentInfo) {
-      const trackInfo = this.getCurrentMediaInfo_(segmentInfo);
-      if (!trackInfo) {
-        this.error({
-          message: 'No starting media returned, likely due to an unsupported media format.',
-          playlistExclusionDuration: Infinity,
-          metadata: {
-            errorType: videojs.Error.SegmentUnsupportedMediaFormat
-          }
-        });
-        this.trigger('error');
-        return;
-      } // Although transmuxing is done, appends may not yet be finished. Throw a marker
-      // on each queue this loader is responsible for to ensure that the appends are
-      // complete.
-
-      const {
-        hasAudio,
-        hasVideo,
-        isMuxed
-      } = trackInfo;
-      const waitForVideo = this.loaderType_ === 'main' && hasVideo;
-      const waitForAudio = !this.audioDisabled_ && hasAudio && !isMuxed;
-      segmentInfo.waitingOnAppends = 0; // segments with no data
-
-      if (!segmentInfo.hasAppendedData_) {
-        if (!segmentInfo.timingInfo && typeof segmentInfo.timestampOffset === 'number') {
-          // When there's no audio or video data in the segment, there's no audio or video
-          // timing information.
-          //
-          // If there's no audio or video timing information, then the timestamp offset
-          // can't be adjusted to the appropriate value for the transmuxer and source
-          // buffers.
-          //
-          // Therefore, the next segment should be used to set the timestamp offset.
-          this.isPendingTimestampOffset_ = true;
-        } // override settings for metadata only segments
-
-        segmentInfo.timingInfo = {
-          start: 0
-        };
-        segmentInfo.waitingOnAppends++;
-        if (!this.isPendingTimestampOffset_) {
-          // update the timestampoffset
-          this.updateSourceBufferTimestampOffset_(segmentInfo); // make sure the metadata queue is processed even though we have
-          // no video/audio data.
-
-          this.processMetadataQueue_();
-        } // append is "done" instantly with no data.
-
-        this.checkAppendsDone_(segmentInfo);
-        return;
-      } // Since source updater could call back synchronously, do the increments first.
-
-      if (waitForVideo) {
-        segmentInfo.waitingOnAppends++;
-      }
-      if (waitForAudio) {
-        segmentInfo.waitingOnAppends++;
-      }
-      if (waitForVideo) {
-        this.sourceUpdater_.videoQueueCallback(this.checkAppendsDone_.bind(this, segmentInfo));
-      }
-      if (waitForAudio) {
-        this.sourceUpdater_.audioQueueCallback(this.checkAppendsDone_.bind(this, segmentInfo));
-      }
-    }
-    checkAppendsDone_(segmentInfo) {
-      if (this.checkForAbort_(segmentInfo.requestId)) {
-        return;
-      }
-      segmentInfo.waitingOnAppends--;
-      if (segmentInfo.waitingOnAppends === 0) {
-        this.handleAppendsDone_();
-      }
-    }
-    checkForIllegalMediaSwitch(trackInfo) {
-      const illegalMediaSwitchError = illegalMediaSwitch(this.loaderType_, this.getCurrentMediaInfo_(), trackInfo);
-      if (illegalMediaSwitchError) {
-        this.error({
-          message: illegalMediaSwitchError,
-          playlistExclusionDuration: Infinity,
-          metadata: {
-            errorType: videojs.Error.SegmentSwitchError
-          }
-        });
-        this.trigger('error');
-        return true;
-      }
-      return false;
-    }
-    updateSourceBufferTimestampOffset_(segmentInfo) {
-      if (segmentInfo.timestampOffset === null ||
-      // we don't yet have the start for whatever media type (video or audio) has
-      // priority, timing-wise, so we must wait
-      typeof segmentInfo.timingInfo.start !== 'number' ||
-      // already updated the timestamp offset for this segment
-      segmentInfo.changedTimestampOffset ||
-      // the alt audio loader should not be responsible for setting the timestamp offset
-      this.loaderType_ !== 'main') {
-        return;
-      }
-      let didChange = false; // Primary timing goes by video, and audio is trimmed in the transmuxer, meaning that
-      // the timing info here comes from video. In the event that the audio is longer than
-      // the video, this will trim the start of the audio.
-      // This also trims any offset from 0 at the beginning of the media
-
-      segmentInfo.timestampOffset -= this.getSegmentStartTimeForTimestampOffsetCalculation_({
-        videoTimingInfo: segmentInfo.segment.videoTimingInfo,
-        audioTimingInfo: segmentInfo.segment.audioTimingInfo,
-        timingInfo: segmentInfo.timingInfo
-      }); // In the event that there are part segment downloads, each will try to update the
-      // timestamp offset. Retaining this bit of state prevents us from updating in the
-      // future (within the same segment), however, there may be a better way to handle it.
-
-      segmentInfo.changedTimestampOffset = true;
-      if (segmentInfo.timestampOffset !== this.sourceUpdater_.videoTimestampOffset()) {
-        this.sourceUpdater_.videoTimestampOffset(segmentInfo.timestampOffset);
-        didChange = true;
-      }
-      if (segmentInfo.timestampOffset !== this.sourceUpdater_.audioTimestampOffset()) {
-        this.sourceUpdater_.audioTimestampOffset(segmentInfo.timestampOffset);
-        didChange = true;
-      }
-      if (didChange) {
-        this.trigger('timestampoffset');
-      }
-    }
-    getSegmentStartTimeForTimestampOffsetCalculation_({
-      videoTimingInfo,
-      audioTimingInfo,
-      timingInfo
-    }) {
-      if (!this.useDtsForTimestampOffset_) {
-        return timingInfo.start;
-      }
-      if (videoTimingInfo && typeof videoTimingInfo.transmuxedDecodeStart === 'number') {
-        return videoTimingInfo.transmuxedDecodeStart;
-      } // handle audio only
-
-      if (audioTimingInfo && typeof audioTimingInfo.transmuxedDecodeStart === 'number') {
-        return audioTimingInfo.transmuxedDecodeStart;
-      } // handle content not transmuxed (e.g., MP4)
-
-      return timingInfo.start;
-    }
-    updateTimingInfoEnd_(segmentInfo) {
-      segmentInfo.timingInfo = segmentInfo.timingInfo || {};
-      const trackInfo = this.getMediaInfo_();
-      const useVideoTimingInfo = this.loaderType_ === 'main' && trackInfo && trackInfo.hasVideo;
-      const prioritizedTimingInfo = useVideoTimingInfo && segmentInfo.videoTimingInfo ? segmentInfo.videoTimingInfo : segmentInfo.audioTimingInfo;
-      if (!prioritizedTimingInfo) {
-        return;
-      }
-      segmentInfo.timingInfo.end = typeof prioritizedTimingInfo.end === 'number' ?
-      // End time may not exist in a case where we aren't parsing the full segment (one
-      // current example is the case of fmp4), so use the rough duration to calculate an
-      // end time.
-      prioritizedTimingInfo.end : prioritizedTimingInfo.start + segmentInfo.duration;
-    }
-    /**
-     * callback to run when appendBuffer is finished. detects if we are
-     * in a good state to do things with the data we got, or if we need
-     * to wait for more
-     *
-     * @private
-     */
-
-    handleAppendsDone_() {
-      // appendsdone can cause an abort
-      if (this.pendingSegment_) {
-        this.trigger('appendsdone');
-      }
-      if (!this.pendingSegment_) {
-        this.state = 'READY'; // TODO should this move into this.checkForAbort to speed up requests post abort in
-        // all appending cases?
-
-        if (!this.paused()) {
-          this.monitorBuffer_();
-        }
-        return;
-      }
-      const segmentInfo = this.pendingSegment_;
-      if (segmentInfo.part && segmentInfo.part.syncInfo) {
-        // low-latency flow
-        segmentInfo.part.syncInfo.markAppended();
-      } else if (segmentInfo.segment.syncInfo) {
-        // normal flow
-        segmentInfo.segment.syncInfo.markAppended();
-      } // Now that the end of the segment has been reached, we can set the end time. It's
-      // best to wait until all appends are done so we're sure that the primary media is
-      // finished (and we have its end time).
-
-      this.updateTimingInfoEnd_(segmentInfo);
-      if (this.shouldSaveSegmentTimingInfo_) {
-        // Timeline mappings should only be saved for the main loader. This is for multiple
-        // reasons:
-        //
-        // 1) Only one mapping is saved per timeline, meaning that if both the audio loader
-        //    and the main loader try to save the timeline mapping, whichever comes later
-        //    will overwrite the first. In theory this is OK, as the mappings should be the
-        //    same, however, it breaks for (2)
-        // 2) In the event of a live stream, the initial live point will make for a somewhat
-        //    arbitrary mapping. If audio and video streams are not perfectly in-sync, then
-        //    the mapping will be off for one of the streams, dependent on which one was
-        //    first saved (see (1)).
-        // 3) Primary timing goes by video in VHS, so the mapping should be video.
-        //
-        // Since the audio loader will wait for the main loader to load the first segment,
-        // the main loader will save the first timeline mapping, and ensure that there won't
-        // be a case where audio loads two segments without saving a mapping (thus leading
-        // to missing segment timing info).
-        this.syncController_.saveSegmentTimingInfo({
-          segmentInfo,
-          shouldSaveTimelineMapping: this.loaderType_ === 'main'
-        });
-      }
-      const segmentDurationMessage = getTroublesomeSegmentDurationMessage(segmentInfo, this.sourceType_);
-      if (segmentDurationMessage) {
-        if (segmentDurationMessage.severity === 'warn') {
-          videojs.log.warn(segmentDurationMessage.message);
-        } else {
-          this.logger_(segmentDurationMessage.message);
-        }
-      }
-      this.recordThroughput_(segmentInfo);
-      this.pendingSegment_ = null;
-      this.state = 'READY';
-      if (segmentInfo.isSyncRequest) {
-        this.trigger('syncinfoupdate'); // if the sync request was not appended
-        // then it was not the correct segment.
-        // throw it away and use the data it gave us
-        // to get the correct one.
-
-        if (!segmentInfo.hasAppendedData_) {
-          this.logger_(`Throwing away un-appended sync request ${segmentInfoString(segmentInfo)}`);
-          return;
-        }
-      }
-      this.logger_(`Appended ${segmentInfoString(segmentInfo)}`);
-      this.addSegmentMetadataCue_(segmentInfo);
-      this.fetchAtBuffer_ = true;
-      if (this.currentTimeline_ !== segmentInfo.timeline) {
-        this.timelineChangeController_.lastTimelineChange({
-          type: this.loaderType_,
-          from: this.currentTimeline_,
-          to: segmentInfo.timeline
-        }); // If audio is not disabled, the main segment loader is responsible for updating
-        // the audio timeline as well. If the content is video only, this won't have any
-        // impact.
-
-        if (this.loaderType_ === 'main' && !this.audioDisabled_) {
-          this.timelineChangeController_.lastTimelineChange({
-            type: 'audio',
-            from: this.currentTimeline_,
-            to: segmentInfo.timeline
-          });
-        }
-      }
-      this.currentTimeline_ = segmentInfo.timeline; // We must update the syncinfo to recalculate the seekable range before
-      // the following conditional otherwise it may consider this a bad "guess"
-      // and attempt to resync when the post-update seekable window and live
-      // point would mean that this was the perfect segment to fetch
-
-      this.trigger('syncinfoupdate');
-      const segment = segmentInfo.segment;
-      const part = segmentInfo.part;
-      const badSegmentGuess = segment.end && this.currentTime_() - segment.end > segmentInfo.playlist.targetDuration * 3;
-      const badPartGuess = part && part.end && this.currentTime_() - part.end > segmentInfo.playlist.partTargetDuration * 3; // If we previously appended a segment/part that ends more than 3 part/targetDurations before
-      // the currentTime_ that means that our conservative guess was too conservative.
-      // In that case, reset the loader state so that we try to use any information gained
-      // from the previous request to create a new, more accurate, sync-point.
-
-      if (badSegmentGuess || badPartGuess) {
-        this.logger_(`bad ${badSegmentGuess ? 'segment' : 'part'} ${segmentInfoString(segmentInfo)}`);
-        this.resetEverything();
-        return;
-      }
-      const isWalkingForward = this.mediaIndex !== null; // Don't do a rendition switch unless we have enough time to get a sync segment
-      // and conservatively guess
-
-      if (isWalkingForward) {
-        this.trigger('bandwidthupdate');
-      }
-      this.trigger('progress');
-      this.mediaIndex = segmentInfo.mediaIndex;
-      this.partIndex = segmentInfo.partIndex; // any time an update finishes and the last segment is in the
-      // buffer, end the stream. this ensures the "ended" event will
-      // fire if playback reaches that point.
-
-      if (this.isEndOfStream_(segmentInfo.mediaIndex, segmentInfo.playlist, segmentInfo.partIndex)) {
-        this.endOfStream();
-      } // used for testing
-
-      this.trigger('appended');
-      if (segmentInfo.hasAppendedData_) {
-        this.mediaAppends++;
-      }
-      if (!this.paused()) {
-        this.monitorBuffer_();
-      }
-    }
-    /**
-     * Records the current throughput of the decrypt, transmux, and append
-     * portion of the semgment pipeline. `throughput.rate` is a the cumulative
-     * moving average of the throughput. `throughput.count` is the number of
-     * data points in the average.
-     *
-     * @private
-     * @param {Object} segmentInfo the object returned by loadSegment
-     */
-
-    recordThroughput_(segmentInfo) {
-      if (segmentInfo.duration < MIN_SEGMENT_DURATION_TO_SAVE_STATS) {
-        this.logger_(`Ignoring segment's throughput because its duration of ${segmentInfo.duration}` + ` is less than the min to record ${MIN_SEGMENT_DURATION_TO_SAVE_STATS}`);
-        return;
-      }
-      const rate = this.throughput.rate; // Add one to the time to ensure that we don't accidentally attempt to divide
-      // by zero in the case where the throughput is ridiculously high
-
-      const segmentProcessingTime = Date.now() - segmentInfo.endOfAllRequests + 1; // Multiply by 8000 to convert from bytes/millisecond to bits/second
-
-      const segmentProcessingThroughput = Math.floor(segmentInfo.byteLength / segmentProcessingTime * 8 * 1000); // This is just a cumulative moving average calculation:
-      //   newAvg = oldAvg + (sample - oldAvg) / (sampleCount + 1)
-
-      this.throughput.rate += (segmentProcessingThroughput - rate) / ++this.throughput.count;
-    }
-    /**
-     * Adds a cue to the segment-metadata track with some metadata information about the
-     * segment
-     *
-     * @private
-     * @param {Object} segmentInfo
-     *        the object returned by loadSegment
-     * @method addSegmentMetadataCue_
-     */
-
-    addSegmentMetadataCue_(segmentInfo) {
-      if (!this.segmentMetadataTrack_) {
-        return;
-      }
-      const segment = segmentInfo.segment;
-      const start = segment.start;
-      const end = segment.end; // Do not try adding the cue if the start and end times are invalid.
-
-      if (!finite(start) || !finite(end)) {
-        return;
-      }
-      removeCuesFromTrack(start, end, this.segmentMetadataTrack_);
-      const Cue = window.WebKitDataCue || window.VTTCue;
-      const value = {
-        custom: segment.custom,
-        dateTimeObject: segment.dateTimeObject,
-        dateTimeString: segment.dateTimeString,
-        programDateTime: segment.programDateTime,
-        bandwidth: segmentInfo.playlist.attributes.BANDWIDTH,
-        resolution: segmentInfo.playlist.attributes.RESOLUTION,
-        codecs: segmentInfo.playlist.attributes.CODECS,
-        byteLength: segmentInfo.byteLength,
-        uri: segmentInfo.uri,
-        timeline: segmentInfo.timeline,
-        playlist: segmentInfo.playlist.id,
-        start,
-        end
-      };
-      const data = JSON.stringify(value);
-      const cue = new Cue(start, end, data); // Attach the metadata to the value property of the cue to keep consistency between
-      // the differences of WebKitDataCue in safari and VTTCue in other browsers
-
-      cue.value = value;
-      this.segmentMetadataTrack_.addCue(cue);
-    }
-  }
-  function noop() {}
-  const toTitleCase = function (string) {
-    if (typeof string !== 'string') {
-      return string;
-    }
-    return string.replace(/./, w => w.toUpperCase());
-  };
-
-  /**
-   * @file source-updater.js
-   */
-  const bufferTypes = ['video', 'audio'];
-  const updating = (type, sourceUpdater) => {
-    const sourceBuffer = sourceUpdater[`${type}Buffer`];
-    return sourceBuffer && sourceBuffer.updating || sourceUpdater.queuePending[type];
-  };
-  const nextQueueIndexOfType = (type, queue) => {
-    for (let i = 0; i < queue.length; i++) {
-      const queueEntry = queue[i];
-      if (queueEntry.type === 'mediaSource') {
-        // If the next entry is a media source entry (uses multiple source buffers), block
-        // processing to allow it to go through first.
-        return null;
-      }
-      if (queueEntry.type === type) {
-        return i;
-      }
-    }
-    return null;
-  };
-  const shiftQueue = (type, sourceUpdater) => {
-    if (sourceUpdater.queue.length === 0) {
-      return;
-    }
-    let queueIndex = 0;
-    let queueEntry = sourceUpdater.queue[queueIndex];
-    if (queueEntry.type === 'mediaSource') {
-      if (!sourceUpdater.updating() && sourceUpdater.mediaSource.readyState !== 'closed') {
-        sourceUpdater.queue.shift();
-        queueEntry.action(sourceUpdater);
-        if (queueEntry.doneFn) {
-          queueEntry.doneFn();
-        } // Only specific source buffer actions must wait for async updateend events. Media
-        // Source actions process synchronously. Therefore, both audio and video source
-        // buffers are now clear to process the next queue entries.
-
-        shiftQueue('audio', sourceUpdater);
-        shiftQueue('video', sourceUpdater);
-      } // Media Source actions require both source buffers, so if the media source action
-      // couldn't process yet (because one or both source buffers are busy), block other
-      // queue actions until both are available and the media source action can process.
-
-      return;
-    }
-    if (type === 'mediaSource') {
-      // If the queue was shifted by a media source action (this happens when pushing a
-      // media source action onto the queue), then it wasn't from an updateend event from an
-      // audio or video source buffer, so there's no change from previous state, and no
-      // processing should be done.
-      return;
-    } // Media source queue entries don't need to consider whether the source updater is
-    // started (i.e., source buffers are created) as they don't need the source buffers, but
-    // source buffer queue entries do.
-
-    if (!sourceUpdater.ready() || sourceUpdater.mediaSource.readyState === 'closed' || updating(type, sourceUpdater)) {
-      return;
-    }
-    if (queueEntry.type !== type) {
-      queueIndex = nextQueueIndexOfType(type, sourceUpdater.queue);
-      if (queueIndex === null) {
-        // Either there's no queue entry that uses this source buffer type in the queue, or
-        // there's a media source queue entry before the next entry of this type, in which
-        // case wait for that action to process first.
-        return;
-      }
-      queueEntry = sourceUpdater.queue[queueIndex];
-    }
-    sourceUpdater.queue.splice(queueIndex, 1); // Keep a record that this source buffer type is in use.
-    //
-    // The queue pending operation must be set before the action is performed in the event
-    // that the action results in a synchronous event that is acted upon. For instance, if
-    // an exception is thrown that can be handled, it's possible that new actions will be
-    // appended to an empty queue and immediately executed, but would not have the correct
-    // pending information if this property was set after the action was performed.
-
-    sourceUpdater.queuePending[type] = queueEntry;
-    queueEntry.action(type, sourceUpdater);
-    if (!queueEntry.doneFn) {
-      // synchronous operation, process next entry
-      sourceUpdater.queuePending[type] = null;
-      shiftQueue(type, sourceUpdater);
-      return;
-    }
-  };
-  const cleanupBuffer = (type, sourceUpdater) => {
-    const buffer = sourceUpdater[`${type}Buffer`];
-    const titleType = toTitleCase(type);
-    if (!buffer) {
-      return;
-    }
-    buffer.removeEventListener('updateend', sourceUpdater[`on${titleType}UpdateEnd_`]);
-    buffer.removeEventListener('error', sourceUpdater[`on${titleType}Error_`]);
-    sourceUpdater.codecs[type] = null;
-    sourceUpdater[`${type}Buffer`] = null;
-  };
-  const inSourceBuffers = (mediaSource, sourceBuffer) => mediaSource && sourceBuffer && Array.prototype.indexOf.call(mediaSource.sourceBuffers, sourceBuffer) !== -1;
-  const actions = {
-    appendBuffer: (bytes, segmentInfo, onError) => (type, sourceUpdater) => {
-      const sourceBuffer = sourceUpdater[`${type}Buffer`]; // can't do anything if the media source / source buffer is null
-      // or the media source does not contain this source buffer.
-
-      if (!inSourceBuffers(sourceUpdater.mediaSource, sourceBuffer)) {
-        return;
-      }
-      sourceUpdater.logger_(`Appending segment ${segmentInfo.mediaIndex}'s ${bytes.length} bytes to ${type}Buffer`);
-      try {
-        sourceBuffer.appendBuffer(bytes);
-      } catch (e) {
-        sourceUpdater.logger_(`Error with code ${e.code} ` + (e.code === QUOTA_EXCEEDED_ERR ? '(QUOTA_EXCEEDED_ERR) ' : '') + `when appending segment ${segmentInfo.mediaIndex} to ${type}Buffer`);
-        sourceUpdater.queuePending[type] = null;
-        onError(e);
-      }
-    },
-    remove: (start, end) => (type, sourceUpdater) => {
-      const sourceBuffer = sourceUpdater[`${type}Buffer`]; // can't do anything if the media source / source buffer is null
-      // or the media source does not contain this source buffer.
-
-      if (!inSourceBuffers(sourceUpdater.mediaSource, sourceBuffer)) {
-        return;
-      }
-      sourceUpdater.logger_(`Removing ${start} to ${end} from ${type}Buffer`);
-      try {
-        sourceBuffer.remove(start, end);
-      } catch (e) {
-        sourceUpdater.logger_(`Remove ${start} to ${end} from ${type}Buffer failed`);
-      }
-    },
-    timestampOffset: offset => (type, sourceUpdater) => {
-      const sourceBuffer = sourceUpdater[`${type}Buffer`]; // can't do anything if the media source / source buffer is null
-      // or the media source does not contain this source buffer.
-
-      if (!inSourceBuffers(sourceUpdater.mediaSource, sourceBuffer)) {
-        return;
-      }
-      sourceUpdater.logger_(`Setting ${type}timestampOffset to ${offset}`);
-      sourceBuffer.timestampOffset = offset;
-    },
-    callback: callback => (type, sourceUpdater) => {
-      callback();
-    },
-    endOfStream: error => sourceUpdater => {
-      if (sourceUpdater.mediaSource.readyState !== 'open') {
-        return;
-      }
-      sourceUpdater.logger_(`Calling mediaSource endOfStream(${error || ''})`);
-      try {
-        sourceUpdater.mediaSource.endOfStream(error);
-      } catch (e) {
-        videojs.log.warn('Failed to call media source endOfStream', e);
-      }
-    },
-    duration: duration => sourceUpdater => {
-      sourceUpdater.logger_(`Setting mediaSource duration to ${duration}`);
-      try {
-        sourceUpdater.mediaSource.duration = duration;
-      } catch (e) {
-        videojs.log.warn('Failed to set media source duration', e);
-      }
-    },
-    abort: () => (type, sourceUpdater) => {
-      if (sourceUpdater.mediaSource.readyState !== 'open') {
-        return;
-      }
-      const sourceBuffer = sourceUpdater[`${type}Buffer`]; // can't do anything if the media source / source buffer is null
-      // or the media source does not contain this source buffer.
-
-      if (!inSourceBuffers(sourceUpdater.mediaSource, sourceBuffer)) {
-        return;
-      }
-      sourceUpdater.logger_(`calling abort on ${type}Buffer`);
-      try {
-        sourceBuffer.abort();
-      } catch (e) {
-        videojs.log.warn(`Failed to abort on ${type}Buffer`, e);
-      }
-    },
-    addSourceBuffer: (type, codec) => sourceUpdater => {
-      const titleType = toTitleCase(type);
-      const mime = getMimeForCodec(codec);
-      sourceUpdater.logger_(`Adding ${type}Buffer with codec ${codec} to mediaSource`);
-      const sourceBuffer = sourceUpdater.mediaSource.addSourceBuffer(mime);
-      sourceBuffer.addEventListener('updateend', sourceUpdater[`on${titleType}UpdateEnd_`]);
-      sourceBuffer.addEventListener('error', sourceUpdater[`on${titleType}Error_`]);
-      sourceUpdater.codecs[type] = codec;
-      sourceUpdater[`${type}Buffer`] = sourceBuffer;
-    },
-    removeSourceBuffer: type => sourceUpdater => {
-      const sourceBuffer = sourceUpdater[`${type}Buffer`];
-      cleanupBuffer(type, sourceUpdater); // can't do anything if the media source / source buffer is null
-      // or the media source does not contain this source buffer.
-
-      if (!inSourceBuffers(sourceUpdater.mediaSource, sourceBuffer)) {
-        return;
-      }
-      sourceUpdater.logger_(`Removing ${type}Buffer with codec ${sourceUpdater.codecs[type]} from mediaSource`);
-      try {
-        sourceUpdater.mediaSource.removeSourceBuffer(sourceBuffer);
-      } catch (e) {
-        videojs.log.warn(`Failed to removeSourceBuffer ${type}Buffer`, e);
-      }
-    },
-    changeType: codec => (type, sourceUpdater) => {
-      const sourceBuffer = sourceUpdater[`${type}Buffer`];
-      const mime = getMimeForCodec(codec); // can't do anything if the media source / source buffer is null
-      // or the media source does not contain this source buffer.
-
-      if (!inSourceBuffers(sourceUpdater.mediaSource, sourceBuffer)) {
-        return;
-      } // do not update codec if we don't need to.
-      // Only update if we change the codec base.
-      // For example, going from avc1.640028 to avc1.64001f does not require a changeType call.
-
-      const newCodecBase = codec.substring(0, codec.indexOf('.'));
-      const oldCodec = sourceUpdater.codecs[type];
-      const oldCodecBase = oldCodec.substring(0, oldCodec.indexOf('.'));
-      if (oldCodecBase === newCodecBase) {
-        return;
-      }
-      sourceUpdater.logger_(`changing ${type}Buffer codec from ${sourceUpdater.codecs[type]} to ${codec}`); // check if change to the provided type is supported
-
-      try {
-        sourceBuffer.changeType(mime);
-        sourceUpdater.codecs[type] = codec;
-      } catch (e) {
-        videojs.log.warn(`Failed to changeType on ${type}Buffer`, e);
-      }
-    }
-  };
-  const pushQueue = ({
-    type,
-    sourceUpdater,
-    action,
-    doneFn,
-    name
-  }) => {
-    sourceUpdater.queue.push({
-      type,
-      action,
-      doneFn,
-      name
-    });
-    shiftQueue(type, sourceUpdater);
-  };
-  const onUpdateend = (type, sourceUpdater) => e => {
-    // Although there should, in theory, be a pending action for any updateend receieved,
-    // there are some actions that may trigger updateend events without set definitions in
-    // the w3c spec. For instance, setting the duration on the media source may trigger
-    // updateend events on source buffers. This does not appear to be in the spec. As such,
-    // if we encounter an updateend without a corresponding pending action from our queue
-    // for that source buffer type, process the next action.
-    const bufferedRangesForType = sourceUpdater[`${type}Buffered`]();
-    const descriptiveString = bufferedRangesToString(bufferedRangesForType);
-    sourceUpdater.logger_(`received "updateend" event for ${type} Source Buffer: `, descriptiveString);
-    if (sourceUpdater.queuePending[type]) {
-      const doneFn = sourceUpdater.queuePending[type].doneFn;
-      sourceUpdater.queuePending[type] = null;
-      if (doneFn) {
-        // if there's an error, report it
-        doneFn(sourceUpdater[`${type}Error_`]);
-      }
-    }
-    shiftQueue(type, sourceUpdater);
-  };
-  /**
-   * A queue of callbacks to be serialized and applied when a
-   * MediaSource and its associated SourceBuffers are not in the
-   * updating state. It is used by the segment loader to update the
-   * underlying SourceBuffers when new data is loaded, for instance.
-   *
-   * @class SourceUpdater
-   * @param {MediaSource} mediaSource the MediaSource to create the SourceBuffer from
-   * @param {string} mimeType the desired MIME type of the underlying SourceBuffer
-   */
-
-  class SourceUpdater extends videojs.EventTarget {
-    constructor(mediaSource) {
-      super();
-      this.mediaSource = mediaSource;
-      this.sourceopenListener_ = () => shiftQueue('mediaSource', this);
-      this.mediaSource.addEventListener('sourceopen', this.sourceopenListener_);
-      this.logger_ = logger('SourceUpdater'); // initial timestamp offset is 0
-
-      this.audioTimestampOffset_ = 0;
-      this.videoTimestampOffset_ = 0;
-      this.queue = [];
-      this.queuePending = {
-        audio: null,
-        video: null
-      };
-      this.delayedAudioAppendQueue_ = [];
-      this.videoAppendQueued_ = false;
-      this.codecs = {};
-      this.onVideoUpdateEnd_ = onUpdateend('video', this);
-      this.onAudioUpdateEnd_ = onUpdateend('audio', this);
-      this.onVideoError_ = e => {
-        // used for debugging
-        this.videoError_ = e;
-      };
-      this.onAudioError_ = e => {
-        // used for debugging
-        this.audioError_ = e;
-      };
-      this.createdSourceBuffers_ = false;
-      this.initializedEme_ = false;
-      this.triggeredReady_ = false;
-    }
-    initializedEme() {
-      this.initializedEme_ = true;
-      this.triggerReady();
-    }
-    hasCreatedSourceBuffers() {
-      // if false, likely waiting on one of the segment loaders to get enough data to create
-      // source buffers
-      return this.createdSourceBuffers_;
-    }
-    hasInitializedAnyEme() {
-      return this.initializedEme_;
-    }
-    ready() {
-      return this.hasCreatedSourceBuffers() && this.hasInitializedAnyEme();
-    }
-    createSourceBuffers(codecs) {
-      if (this.hasCreatedSourceBuffers()) {
-        // already created them before
-        return;
-      } // the intial addOrChangeSourceBuffers will always be
-      // two add buffers.
-
-      this.addOrChangeSourceBuffers(codecs);
-      this.createdSourceBuffers_ = true;
-      this.trigger('createdsourcebuffers');
-      this.triggerReady();
-    }
-    triggerReady() {
-      // only allow ready to be triggered once, this prevents the case
-      // where:
-      // 1. we trigger createdsourcebuffers
-      // 2. ie 11 synchronously initializates eme
-      // 3. the synchronous initialization causes us to trigger ready
-      // 4. We go back to the ready check in createSourceBuffers and ready is triggered again.
-      if (this.ready() && !this.triggeredReady_) {
-        this.triggeredReady_ = true;
-        this.trigger('ready');
-      }
-    }
-    /**
-     * Add a type of source buffer to the media source.
-     *
-     * @param {string} type
-     *        The type of source buffer to add.
-     *
-     * @param {string} codec
-     *        The codec to add the source buffer with.
-     */
-
-    addSourceBuffer(type, codec) {
-      pushQueue({
-        type: 'mediaSource',
-        sourceUpdater: this,
-        action: actions.addSourceBuffer(type, codec),
-        name: 'addSourceBuffer'
-      });
-    }
-    /**
-     * call abort on a source buffer.
-     *
-     * @param {string} type
-     *        The type of source buffer to call abort on.
-     */
-
-    abort(type) {
-      pushQueue({
-        type,
-        sourceUpdater: this,
-        action: actions.abort(type),
-        name: 'abort'
-      });
-    }
-    /**
-     * Call removeSourceBuffer and remove a specific type
-     * of source buffer on the mediaSource.
-     *
-     * @param {string} type
-     *        The type of source buffer to remove.
-     */
-
-    removeSourceBuffer(type) {
-      if (!this.canRemoveSourceBuffer()) {
-        videojs.log.error('removeSourceBuffer is not supported!');
-        return;
-      }
-      pushQueue({
-        type: 'mediaSource',
-        sourceUpdater: this,
-        action: actions.removeSourceBuffer(type),
-        name: 'removeSourceBuffer'
-      });
-    }
-    /**
-     * Whether or not the removeSourceBuffer function is supported
-     * on the mediaSource.
-     *
-     * @return {boolean}
-     *          if removeSourceBuffer can be called.
-     */
-
-    canRemoveSourceBuffer() {
-      // As of Firefox 83 removeSourceBuffer
-      // throws errors, so we report that it does not support this.
-      return !videojs.browser.IS_FIREFOX && window.MediaSource && window.MediaSource.prototype && typeof window.MediaSource.prototype.removeSourceBuffer === 'function';
-    }
-    /**
-     * Whether or not the changeType function is supported
-     * on our SourceBuffers.
-     *
-     * @return {boolean}
-     *         if changeType can be called.
-     */
-
-    static canChangeType() {
-      return window.SourceBuffer && window.SourceBuffer.prototype && typeof window.SourceBuffer.prototype.changeType === 'function';
-    }
-    /**
-     * Whether or not the changeType function is supported
-     * on our SourceBuffers.
-     *
-     * @return {boolean}
-     *         if changeType can be called.
-     */
-
-    canChangeType() {
-      return this.constructor.canChangeType();
-    }
-    /**
-     * Call the changeType function on a source buffer, given the code and type.
-     *
-     * @param {string} type
-     *        The type of source buffer to call changeType on.
-     *
-     * @param {string} codec
-     *        The codec string to change type with on the source buffer.
-     */
-
-    changeType(type, codec) {
-      if (!this.canChangeType()) {
-        videojs.log.error('changeType is not supported!');
-        return;
-      }
-      pushQueue({
-        type,
-        sourceUpdater: this,
-        action: actions.changeType(codec),
-        name: 'changeType'
-      });
-    }
-    /**
-     * Add source buffers with a codec or, if they are already created,
-     * call changeType on source buffers using changeType.
-     *
-     * @param {Object} codecs
-     *        Codecs to switch to
-     */
-
-    addOrChangeSourceBuffers(codecs) {
-      if (!codecs || typeof codecs !== 'object' || Object.keys(codecs).length === 0) {
-        throw new Error('Cannot addOrChangeSourceBuffers to undefined codecs');
-      }
-      Object.keys(codecs).forEach(type => {
-        const codec = codecs[type];
-        if (!this.hasCreatedSourceBuffers()) {
-          return this.addSourceBuffer(type, codec);
-        }
-        if (this.canChangeType()) {
-          this.changeType(type, codec);
-        }
-      });
-    }
-    /**
-     * Queue an update to append an ArrayBuffer.
-     *
-     * @param {MediaObject} object containing audioBytes and/or videoBytes
-     * @param {Function} done the function to call when done
-     * @see http://www.w3.org/TR/media-source/#widl-SourceBuffer-appendBuffer-void-ArrayBuffer-data
-     */
-
-    appendBuffer(options, doneFn) {
-      const {
-        segmentInfo,
-        type,
-        bytes
-      } = options;
-      this.processedAppend_ = true;
-      if (type === 'audio' && this.videoBuffer && !this.videoAppendQueued_) {
-        this.delayedAudioAppendQueue_.push([options, doneFn]);
-        this.logger_(`delayed audio append of ${bytes.length} until video append`);
-        return;
-      } // In the case of certain errors, for instance, QUOTA_EXCEEDED_ERR, updateend will
-      // not be fired. This means that the queue will be blocked until the next action
-      // taken by the segment-loader. Provide a mechanism for segment-loader to handle
-      // these errors by calling the doneFn with the specific error.
-
-      const onError = doneFn;
-      pushQueue({
-        type,
-        sourceUpdater: this,
-        action: actions.appendBuffer(bytes, segmentInfo || {
-          mediaIndex: -1
-        }, onError),
-        doneFn,
-        name: 'appendBuffer'
-      });
-      if (type === 'video') {
-        this.videoAppendQueued_ = true;
-        if (!this.delayedAudioAppendQueue_.length) {
-          return;
-        }
-        const queue = this.delayedAudioAppendQueue_.slice();
-        this.logger_(`queuing delayed audio ${queue.length} appendBuffers`);
-        this.delayedAudioAppendQueue_.length = 0;
-        queue.forEach(que => {
-          this.appendBuffer.apply(this, que);
-        });
-      }
-    }
-    /**
-     * Get the audio buffer's buffered timerange.
-     *
-     * @return {TimeRange}
-     *         The audio buffer's buffered time range
-     */
-
-    audioBuffered() {
-      // no media source/source buffer or it isn't in the media sources
-      // source buffer list
-      if (!inSourceBuffers(this.mediaSource, this.audioBuffer)) {
-        return createTimeRanges();
-      }
-      return this.audioBuffer.buffered ? this.audioBuffer.buffered : createTimeRanges();
-    }
-    /**
-     * Get the video buffer's buffered timerange.
-     *
-     * @return {TimeRange}
-     *         The video buffer's buffered time range
-     */
-
-    videoBuffered() {
-      // no media source/source buffer or it isn't in the media sources
-      // source buffer list
-      if (!inSourceBuffers(this.mediaSource, this.videoBuffer)) {
-        return createTimeRanges();
-      }
-      return this.videoBuffer.buffered ? this.videoBuffer.buffered : createTimeRanges();
-    }
-    /**
-     * Get a combined video/audio buffer's buffered timerange.
-     *
-     * @return {TimeRange}
-     *         the combined time range
-     */
-
-    buffered() {
-      const video = inSourceBuffers(this.mediaSource, this.videoBuffer) ? this.videoBuffer : null;
-      const audio = inSourceBuffers(this.mediaSource, this.audioBuffer) ? this.audioBuffer : null;
-      if (audio && !video) {
-        return this.audioBuffered();
-      }
-      if (video && !audio) {
-        return this.videoBuffered();
-      }
-      return bufferIntersection(this.audioBuffered(), this.videoBuffered());
-    }
-    /**
-     * Add a callback to the queue that will set duration on the mediaSource.
-     *
-     * @param {number} duration
-     *        The duration to set
-     *
-     * @param {Function} [doneFn]
-     *        function to run after duration has been set.
-     */
-
-    setDuration(duration, doneFn = noop) {
-      // In order to set the duration on the media source, it's necessary to wait for all
-      // source buffers to no longer be updating. "If the updating attribute equals true on
-      // any SourceBuffer in sourceBuffers, then throw an InvalidStateError exception and
-      // abort these steps." (source: https://www.w3.org/TR/media-source/#attributes).
-      pushQueue({
-        type: 'mediaSource',
-        sourceUpdater: this,
-        action: actions.duration(duration),
-        name: 'duration',
-        doneFn
-      });
-    }
-    /**
-     * Add a mediaSource endOfStream call to the queue
-     *
-     * @param {Error} [error]
-     *        Call endOfStream with an error
-     *
-     * @param {Function} [doneFn]
-     *        A function that should be called when the
-     *        endOfStream call has finished.
-     */
-
-    endOfStream(error = null, doneFn = noop) {
-      if (typeof error !== 'string') {
-        error = undefined;
-      } // In order to set the duration on the media source, it's necessary to wait for all
-      // source buffers to no longer be updating. "If the updating attribute equals true on
-      // any SourceBuffer in sourceBuffers, then throw an InvalidStateError exception and
-      // abort these steps." (source: https://www.w3.org/TR/media-source/#attributes).
-
-      pushQueue({
-        type: 'mediaSource',
-        sourceUpdater: this,
-        action: actions.endOfStream(error),
-        name: 'endOfStream',
-        doneFn
-      });
-    }
-    /**
-     * Queue an update to remove a time range from the buffer.
-     *
-     * @param {number} start where to start the removal
-     * @param {number} end where to end the removal
-     * @param {Function} [done=noop] optional callback to be executed when the remove
-     * operation is complete
-     * @see http://www.w3.org/TR/media-source/#widl-SourceBuffer-remove-void-double-start-unrestricted-double-end
-     */
-
-    removeAudio(start, end, done = noop) {
-      if (!this.audioBuffered().length || this.audioBuffered().end(0) === 0) {
-        done();
-        return;
-      }
-      pushQueue({
-        type: 'audio',
-        sourceUpdater: this,
-        action: actions.remove(start, end),
-        doneFn: done,
-        name: 'remove'
-      });
-    }
-    /**
-     * Queue an update to remove a time range from the buffer.
-     *
-     * @param {number} start where to start the removal
-     * @param {number} end where to end the removal
-     * @param {Function} [done=noop] optional callback to be executed when the remove
-     * operation is complete
-     * @see http://www.w3.org/TR/media-source/#widl-SourceBuffer-remove-void-double-start-unrestricted-double-end
-     */
-
-    removeVideo(start, end, done = noop) {
-      if (!this.videoBuffered().length || this.videoBuffered().end(0) === 0) {
-        done();
-        return;
-      }
-      pushQueue({
-        type: 'video',
-        sourceUpdater: this,
-        action: actions.remove(start, end),
-        doneFn: done,
-        name: 'remove'
-      });
-    }
-    /**
-     * Whether the underlying sourceBuffer is updating or not
-     *
-     * @return {boolean} the updating status of the SourceBuffer
-     */
-
-    updating() {
-      // the audio/video source buffer is updating
-      if (updating('audio', this) || updating('video', this)) {
-        return true;
-      }
-      return false;
-    }
-    /**
-     * Set/get the timestampoffset on the audio SourceBuffer
-     *
-     * @return {number} the timestamp offset
-     */
-
-    audioTimestampOffset(offset) {
-      if (typeof offset !== 'undefined' && this.audioBuffer &&
-      // no point in updating if it's the same
-      this.audioTimestampOffset_ !== offset) {
-        pushQueue({
-          type: 'audio',
-          sourceUpdater: this,
-          action: actions.timestampOffset(offset),
-          name: 'timestampOffset'
-        });
-        this.audioTimestampOffset_ = offset;
-      }
-      return this.audioTimestampOffset_;
-    }
-    /**
-     * Set/get the timestampoffset on the video SourceBuffer
-     *
-     * @return {number} the timestamp offset
-     */
-
-    videoTimestampOffset(offset) {
-      if (typeof offset !== 'undefined' && this.videoBuffer &&
-      // no point in updating if it's the same
-      this.videoTimestampOffset !== offset) {
-        pushQueue({
-          type: 'video',
-          sourceUpdater: this,
-          action: actions.timestampOffset(offset),
-          name: 'timestampOffset'
-        });
-        this.videoTimestampOffset_ = offset;
-      }
-      return this.videoTimestampOffset_;
-    }
-    /**
-     * Add a function to the queue that will be called
-     * when it is its turn to run in the audio queue.
-     *
-     * @param {Function} callback
-     *        The callback to queue.
-     */
-
-    audioQueueCallback(callback) {
-      if (!this.audioBuffer) {
-        return;
-      }
-      pushQueue({
-        type: 'audio',
-        sourceUpdater: this,
-        action: actions.callback(callback),
-        name: 'callback'
-      });
-    }
-    /**
-     * Add a function to the queue that will be called
-     * when it is its turn to run in the video queue.
-     *
-     * @param {Function} callback
-     *        The callback to queue.
-     */
-
-    videoQueueCallback(callback) {
-      if (!this.videoBuffer) {
-        return;
-      }
-      pushQueue({
-        type: 'video',
-        sourceUpdater: this,
-        action: actions.callback(callback),
-        name: 'callback'
-      });
-    }
-    /**
-     * dispose of the source updater and the underlying sourceBuffer
-     */
-
-    dispose() {
-      this.trigger('dispose');
-      bufferTypes.forEach(type => {
-        this.abort(type);
-        if (this.canRemoveSourceBuffer()) {
-          this.removeSourceBuffer(type);
-        } else {
-          this[`${type}QueueCallback`](() => cleanupBuffer(type, this));
-        }
-      });
-      this.videoAppendQueued_ = false;
-      this.delayedAudioAppendQueue_.length = 0;
-      if (this.sourceopenListener_) {
-        this.mediaSource.removeEventListener('sourceopen', this.sourceopenListener_);
-      }
-      this.off();
-    }
-  }
-  const uint8ToUtf8 = uintArray => decodeURIComponent(escape(String.fromCharCode.apply(null, uintArray)));
-  const bufferToHexString = buffer => {
-    const uInt8Buffer = new Uint8Array(buffer);
-    return Array.from(uInt8Buffer).map(byte => byte.toString(16).padStart(2, '0')).join('');
-  };
-
-  /**
-   * @file vtt-segment-loader.js
-   */
-  const VTT_LINE_TERMINATORS = new Uint8Array('\n\n'.split('').map(char => char.charCodeAt(0)));
-  class NoVttJsError extends Error {
-    constructor() {
-      super('Trying to parse received VTT cues, but there is no WebVTT. Make sure vtt.js is loaded.');
-    }
-  }
-  /**
-   * An object that manages segment loading and appending.
-   *
-   * @class VTTSegmentLoader
-   * @param {Object} options required and optional options
-   * @extends videojs.EventTarget
-   */
-
-  class VTTSegmentLoader extends SegmentLoader {
-    constructor(settings, options = {}) {
-      super(settings, options); // SegmentLoader requires a MediaSource be specified or it will throw an error;
-      // however, VTTSegmentLoader has no need of a media source, so delete the reference
-
-      this.mediaSource_ = null;
-      this.subtitlesTrack_ = null;
-      this.featuresNativeTextTracks_ = settings.featuresNativeTextTracks;
-      this.loadVttJs = settings.loadVttJs; // The VTT segment will have its own time mappings. Saving VTT segment timing info in
-      // the sync controller leads to improper behavior.
-
-      this.shouldSaveSegmentTimingInfo_ = false;
-    }
-    createTransmuxer_() {
-      // don't need to transmux any subtitles
-      return null;
-    }
-    /**
-     * Indicates which time ranges are buffered
-     *
-     * @return {TimeRange}
-     *         TimeRange object representing the current buffered ranges
-     */
-
-    buffered_() {
-      if (!this.subtitlesTrack_ || !this.subtitlesTrack_.cues || !this.subtitlesTrack_.cues.length) {
-        return createTimeRanges();
-      }
-      const cues = this.subtitlesTrack_.cues;
-      const start = cues[0].startTime;
-      const end = cues[cues.length - 1].startTime;
-      return createTimeRanges([[start, end]]);
-    }
-    /**
-     * Gets and sets init segment for the provided map
-     *
-     * @param {Object} map
-     *        The map object representing the init segment to get or set
-     * @param {boolean=} set
-     *        If true, the init segment for the provided map should be saved
-     * @return {Object}
-     *         map object for desired init segment
-     */
-
-    initSegmentForMap(map, set = false) {
-      if (!map) {
-        return null;
-      }
-      const id = initSegmentId(map);
-      let storedMap = this.initSegments_[id];
-      if (set && !storedMap && map.bytes) {
-        // append WebVTT line terminators to the media initialization segment if it exists
-        // to follow the WebVTT spec (https://w3c.github.io/webvtt/#file-structure) that
-        // requires two or more WebVTT line terminators between the WebVTT header and the
-        // rest of the file
-        const combinedByteLength = VTT_LINE_TERMINATORS.byteLength + map.bytes.byteLength;
-        const combinedSegment = new Uint8Array(combinedByteLength);
-        combinedSegment.set(map.bytes);
-        combinedSegment.set(VTT_LINE_TERMINATORS, map.bytes.byteLength);
-        this.initSegments_[id] = storedMap = {
-          resolvedUri: map.resolvedUri,
-          byterange: map.byterange,
-          bytes: combinedSegment
-        };
-      }
-      return storedMap || map;
-    }
-    /**
-     * Returns true if all configuration required for loading is present, otherwise false.
-     *
-     * @return {boolean} True if the all configuration is ready for loading
-     * @private
-     */
-
-    couldBeginLoading_() {
-      return this.playlist_ && this.subtitlesTrack_ && !this.paused();
-    }
-    /**
-     * Once all the starting parameters have been specified, begin
-     * operation. This method should only be invoked from the INIT
-     * state.
-     *
-     * @private
-     */
-
-    init_() {
-      this.state = 'READY';
-      this.resetEverything();
-      return this.monitorBuffer_();
-    }
-    /**
-     * Set a subtitle track on the segment loader to add subtitles to
-     *
-     * @param {TextTrack=} track
-     *        The text track to add loaded subtitles to
-     * @return {TextTrack}
-     *        Returns the subtitles track
-     */
-
-    track(track) {
-      if (typeof track === 'undefined') {
-        return this.subtitlesTrack_;
-      }
-      this.subtitlesTrack_ = track; // if we were unpaused but waiting for a sourceUpdater, start
-      // buffering now
-
-      if (this.state === 'INIT' && this.couldBeginLoading_()) {
-        this.init_();
-      }
-      return this.subtitlesTrack_;
-    }
-    /**
-     * Remove any data in the source buffer between start and end times
-     *
-     * @param {number} start - the start time of the region to remove from the buffer
-     * @param {number} end - the end time of the region to remove from the buffer
-     */
-
-    remove(start, end) {
-      removeCuesFromTrack(start, end, this.subtitlesTrack_);
-    }
-    /**
-     * fill the buffer with segements unless the sourceBuffers are
-     * currently updating
-     *
-     * Note: this function should only ever be called by monitorBuffer_
-     * and never directly
-     *
-     * @private
-     */
-
-    fillBuffer_() {
-      // see if we need to begin loading immediately
-      const segmentInfo = this.chooseNextRequest_();
-      if (!segmentInfo) {
-        return;
-      }
-      if (this.syncController_.timestampOffsetForTimeline(segmentInfo.timeline) === null) {
-        // We don't have the timestamp offset that we need to sync subtitles.
-        // Rerun on a timestamp offset or user interaction.
-        const checkTimestampOffset = () => {
-          this.state = 'READY';
-          if (!this.paused()) {
-            // if not paused, queue a buffer check as soon as possible
-            this.monitorBuffer_();
-          }
-        };
-        this.syncController_.one('timestampoffset', checkTimestampOffset);
-        this.state = 'WAITING_ON_TIMELINE';
-        return;
-      }
-      this.loadSegment_(segmentInfo);
-    } // never set a timestamp offset for vtt segments.
-
-    timestampOffsetForSegment_() {
-      return null;
-    }
-    chooseNextRequest_() {
-      return this.skipEmptySegments_(super.chooseNextRequest_());
-    }
-    /**
-     * Prevents the segment loader from requesting segments we know contain no subtitles
-     * by walking forward until we find the next segment that we don't know whether it is
-     * empty or not.
-     *
-     * @param {Object} segmentInfo
-     *        a segment info object that describes the current segment
-     * @return {Object}
-     *         a segment info object that describes the current segment
-     */
-
-    skipEmptySegments_(segmentInfo) {
-      while (segmentInfo && segmentInfo.segment.empty) {
-        // stop at the last possible segmentInfo
-        if (segmentInfo.mediaIndex + 1 >= segmentInfo.playlist.segments.length) {
-          segmentInfo = null;
-          break;
-        }
-        segmentInfo = this.generateSegmentInfo_({
-          playlist: segmentInfo.playlist,
-          mediaIndex: segmentInfo.mediaIndex + 1,
-          startOfSegment: segmentInfo.startOfSegment + segmentInfo.duration,
-          isSyncRequest: segmentInfo.isSyncRequest
-        });
-      }
-      return segmentInfo;
-    }
-    stopForError(error) {
-      this.error(error);
-      this.state = 'READY';
-      this.pause();
-      this.trigger('error');
-    }
-    /**
-     * append a decrypted segement to the SourceBuffer through a SourceUpdater
-     *
-     * @private
-     */
-
-    segmentRequestFinished_(error, simpleSegment, result) {
-      if (!this.subtitlesTrack_) {
-        this.state = 'READY';
-        return;
-      }
-      this.saveTransferStats_(simpleSegment.stats); // the request was aborted
-
-      if (!this.pendingSegment_) {
-        this.state = 'READY';
-        this.mediaRequestsAborted += 1;
-        return;
-      }
-      if (error) {
-        if (error.code === REQUEST_ERRORS.TIMEOUT) {
-          this.handleTimeout_();
-        }
-        if (error.code === REQUEST_ERRORS.ABORTED) {
-          this.mediaRequestsAborted += 1;
-        } else {
-          this.mediaRequestsErrored += 1;
-        }
-        this.stopForError(error);
-        return;
-      }
-      const segmentInfo = this.pendingSegment_; // although the VTT segment loader bandwidth isn't really used, it's good to
-      // maintain functionality between segment loaders
-
-      this.saveBandwidthRelatedStats_(segmentInfo.duration, simpleSegment.stats); // if this request included a segment key, save that data in the cache
-
-      if (simpleSegment.key) {
-        this.segmentKey(simpleSegment.key, true);
-      }
-      this.state = 'APPENDING'; // used for tests
-
-      this.trigger('appending');
-      const segment = segmentInfo.segment;
-      if (segment.map) {
-        segment.map.bytes = simpleSegment.map.bytes;
-      }
-      segmentInfo.bytes = simpleSegment.bytes; // Make sure that vttjs has loaded, otherwise, load it and wait till it finished loading
-
-      if (typeof window.WebVTT !== 'function' && typeof this.loadVttJs === 'function') {
-        this.state = 'WAITING_ON_VTTJS'; // should be fine to call multiple times
-        // script will be loaded once but multiple listeners will be added to the queue, which is expected.
-
-        this.loadVttJs().then(() => this.segmentRequestFinished_(error, simpleSegment, result), () => this.stopForError({
-          message: 'Error loading vtt.js',
-          metadata: {
-            errorType: videojs.Error.VttLoadError
-          }
-        }));
-        return;
-      }
-      segment.requested = true;
-      try {
-        this.parseVTTCues_(segmentInfo);
-      } catch (e) {
-        this.stopForError({
-          message: e.message,
-          metadata: {
-            errorType: videojs.Error.VttCueParsingError
-          }
-        });
-        return;
-      }
-      this.updateTimeMapping_(segmentInfo, this.syncController_.timelines[segmentInfo.timeline], this.playlist_);
-      if (segmentInfo.cues.length) {
-        segmentInfo.timingInfo = {
-          start: segmentInfo.cues[0].startTime,
-          end: segmentInfo.cues[segmentInfo.cues.length - 1].endTime
-        };
-      } else {
-        segmentInfo.timingInfo = {
-          start: segmentInfo.startOfSegment,
-          end: segmentInfo.startOfSegment + segmentInfo.duration
-        };
-      }
-      if (segmentInfo.isSyncRequest) {
-        this.trigger('syncinfoupdate');
-        this.pendingSegment_ = null;
-        this.state = 'READY';
-        return;
-      }
-      segmentInfo.byteLength = segmentInfo.bytes.byteLength;
-      this.mediaSecondsLoaded += segment.duration; // Create VTTCue instances for each cue in the new segment and add them to
-      // the subtitle track
-
-      segmentInfo.cues.forEach(cue => {
-        this.subtitlesTrack_.addCue(this.featuresNativeTextTracks_ ? new window.VTTCue(cue.startTime, cue.endTime, cue.text) : cue);
-      }); // Remove any duplicate cues from the subtitle track. The WebVTT spec allows
-      // cues to have identical time-intervals, but if the text is also identical
-      // we can safely assume it is a duplicate that can be removed (ex. when a cue
-      // "overlaps" VTT segments)
-
-      removeDuplicateCuesFromTrack(this.subtitlesTrack_);
-      this.handleAppendsDone_();
-    }
-    handleData_() {// noop as we shouldn't be getting video/audio data captions
-      // that we do not support here.
-    }
-    updateTimingInfoEnd_() {// noop
-    }
-    /**
-     * Uses the WebVTT parser to parse the segment response
-     *
-     * @throws NoVttJsError
-     *
-     * @param {Object} segmentInfo
-     *        a segment info object that describes the current segment
-     * @private
-     */
-
-    parseVTTCues_(segmentInfo) {
-      let decoder;
-      let decodeBytesToString = false;
-      if (typeof window.WebVTT !== 'function') {
-        // caller is responsible for exception handling.
-        throw new NoVttJsError();
-      }
-      if (typeof window.TextDecoder === 'function') {
-        decoder = new window.TextDecoder('utf8');
-      } else {
-        decoder = window.WebVTT.StringDecoder();
-        decodeBytesToString = true;
-      }
-      const parser = new window.WebVTT.Parser(window, window.vttjs, decoder);
-      segmentInfo.cues = [];
-      segmentInfo.timestampmap = {
-        MPEGTS: 0,
-        LOCAL: 0
-      };
-      parser.oncue = segmentInfo.cues.push.bind(segmentInfo.cues);
-      parser.ontimestampmap = map => {
-        segmentInfo.timestampmap = map;
-      };
-      parser.onparsingerror = error => {
-        videojs.log.warn('Error encountered when parsing cues: ' + error.message);
-      };
-      if (segmentInfo.segment.map) {
-        let mapData = segmentInfo.segment.map.bytes;
-        if (decodeBytesToString) {
-          mapData = uint8ToUtf8(mapData);
-        }
-        parser.parse(mapData);
-      }
-      let segmentData = segmentInfo.bytes;
-      if (decodeBytesToString) {
-        segmentData = uint8ToUtf8(segmentData);
-      }
-      parser.parse(segmentData);
-      parser.flush();
-    }
-    /**
-     * Updates the start and end times of any cues parsed by the WebVTT parser using
-     * the information parsed from the X-TIMESTAMP-MAP header and a TS to media time mapping
-     * from the SyncController
-     *
-     * @param {Object} segmentInfo
-     *        a segment info object that describes the current segment
-     * @param {Object} mappingObj
-     *        object containing a mapping from TS to media time
-     * @param {Object} playlist
-     *        the playlist object containing the segment
-     * @private
-     */
-
-    updateTimeMapping_(segmentInfo, mappingObj, playlist) {
-      const segment = segmentInfo.segment;
-      if (!mappingObj) {
-        // If the sync controller does not have a mapping of TS to Media Time for the
-        // timeline, then we don't have enough information to update the cue
-        // start/end times
-        return;
-      }
-      if (!segmentInfo.cues.length) {
-        // If there are no cues, we also do not have enough information to figure out
-        // segment timing. Mark that the segment contains no cues so we don't re-request
-        // an empty segment.
-        segment.empty = true;
-        return;
-      }
-      const {
-        MPEGTS,
-        LOCAL
-      } = segmentInfo.timestampmap;
-      /**
-       * From the spec:
-       * The MPEGTS media timestamp MUST use a 90KHz timescale,
-       * even when non-WebVTT Media Segments use a different timescale.
-       */
-
-      const mpegTsInSeconds = MPEGTS / clock_1;
-      const diff = mpegTsInSeconds - LOCAL + mappingObj.mapping;
-      segmentInfo.cues.forEach(cue => {
-        const duration = cue.endTime - cue.startTime;
-        const startTime = MPEGTS === 0 ? cue.startTime + diff : this.handleRollover_(cue.startTime + diff, mappingObj.time);
-        cue.startTime = Math.max(startTime, 0);
-        cue.endTime = Math.max(startTime + duration, 0);
-      });
-      if (!playlist.syncInfo) {
-        const firstStart = segmentInfo.cues[0].startTime;
-        const lastStart = segmentInfo.cues[segmentInfo.cues.length - 1].startTime;
-        playlist.syncInfo = {
-          mediaSequence: playlist.mediaSequence + segmentInfo.mediaIndex,
-          time: Math.min(firstStart, lastStart - segment.duration)
-        };
-      }
-    }
-    /**
-     * MPEG-TS PES timestamps are limited to 2^33.
-     * Once they reach 2^33, they roll over to 0.
-     * mux.js handles PES timestamp rollover for the following scenarios:
-     * [forward rollover(right)] ->
-     *    PES timestamps monotonically increase, and once they reach 2^33, they roll over to 0
-     * [backward rollover(left)] -->
-     *    we seek back to position before rollover.
-     *
-     * According to the HLS SPEC:
-     * When synchronizing WebVTT with PES timestamps, clients SHOULD account
-     * for cases where the 33-bit PES timestamps have wrapped and the WebVTT
-     * cue times have not.  When the PES timestamp wraps, the WebVTT Segment
-     * SHOULD have a X-TIMESTAMP-MAP header that maps the current WebVTT
-     * time to the new (low valued) PES timestamp.
-     *
-     * So we want to handle rollover here and align VTT Cue start/end time to the player's time.
-     */
-
-    handleRollover_(value, reference) {
-      if (reference === null) {
-        return value;
-      }
-      let valueIn90khz = value * clock_1;
-      const referenceIn90khz = reference * clock_1;
-      let offset;
-      if (referenceIn90khz < valueIn90khz) {
-        // - 2^33
-        offset = -8589934592;
-      } else {
-        // + 2^33
-        offset = 8589934592;
-      } // distance(value - reference) > 2^32
-
-      while (Math.abs(valueIn90khz - referenceIn90khz) > 4294967296) {
-        valueIn90khz += offset;
-      }
-      return valueIn90khz / clock_1;
-    }
-  }
-
-  /**
-   * @file ad-cue-tags.js
-   */
-  /**
-   * Searches for an ad cue that overlaps with the given mediaTime
-   *
-   * @param {Object} track
-   *        the track to find the cue for
-   *
-   * @param {number} mediaTime
-   *        the time to find the cue at
-   *
-   * @return {Object|null}
-   *         the found cue or null
-   */
-
-  const findAdCue = function (track, mediaTime) {
-    const cues = track.cues;
-    for (let i = 0; i < cues.length; i++) {
-      const cue = cues[i];
-      if (mediaTime >= cue.adStartTime && mediaTime <= cue.adEndTime) {
-        return cue;
-      }
-    }
-    return null;
-  };
-  const updateAdCues = function (media, track, offset = 0) {
-    if (!media.segments) {
-      return;
-    }
-    let mediaTime = offset;
-    let cue;
-    for (let i = 0; i < media.segments.length; i++) {
-      const segment = media.segments[i];
-      if (!cue) {
-        // Since the cues will span for at least the segment duration, adding a fudge
-        // factor of half segment duration will prevent duplicate cues from being
-        // created when timing info is not exact (e.g. cue start time initialized
-        // at 10.006677, but next call mediaTime is 10.003332 )
-        cue = findAdCue(track, mediaTime + segment.duration / 2);
-      }
-      if (cue) {
-        if ('cueIn' in segment) {
-          // Found a CUE-IN so end the cue
-          cue.endTime = mediaTime;
-          cue.adEndTime = mediaTime;
-          mediaTime += segment.duration;
-          cue = null;
-          continue;
-        }
-        if (mediaTime < cue.endTime) {
-          // Already processed this mediaTime for this cue
-          mediaTime += segment.duration;
-          continue;
-        } // otherwise extend cue until a CUE-IN is found
-
-        cue.endTime += segment.duration;
-      } else {
-        if ('cueOut' in segment) {
-          cue = new window.VTTCue(mediaTime, mediaTime + segment.duration, segment.cueOut);
-          cue.adStartTime = mediaTime; // Assumes tag format to be
-          // #EXT-X-CUE-OUT:30
-
-          cue.adEndTime = mediaTime + parseFloat(segment.cueOut);
-          track.addCue(cue);
-        }
-        if ('cueOutCont' in segment) {
-          // Entered into the middle of an ad cue
-          // Assumes tag formate to be
-          // #EXT-X-CUE-OUT-CONT:10/30
-          const [adOffset, adTotal] = segment.cueOutCont.split('/').map(parseFloat);
-          cue = new window.VTTCue(mediaTime, mediaTime + segment.duration, '');
-          cue.adStartTime = mediaTime - adOffset;
-          cue.adEndTime = cue.adStartTime + adTotal;
-          track.addCue(cue);
-        }
-      }
-      mediaTime += segment.duration;
-    }
-  };
-  class SyncInfo {
-    /**
-     * @param {number} start - media sequence start
-     * @param {number} end - media sequence end
-     * @param {number} segmentIndex - index for associated segment
-     * @param {number|null} [partIndex] - index for associated part
-     * @param {boolean} [appended] - appended indicator
-     *
-     */
-    constructor({
-      start,
-      end,
-      segmentIndex,
-      partIndex = null,
-      appended = false
-    }) {
-      this.start_ = start;
-      this.end_ = end;
-      this.segmentIndex_ = segmentIndex;
-      this.partIndex_ = partIndex;
-      this.appended_ = appended;
-    }
-    isInRange(targetTime) {
-      return targetTime >= this.start && targetTime < this.end;
-    }
-    markAppended() {
-      this.appended_ = true;
-    }
-    resetAppendedStatus() {
-      this.appended_ = false;
-    }
-    get isAppended() {
-      return this.appended_;
-    }
-    get start() {
-      return this.start_;
-    }
-    get end() {
-      return this.end_;
-    }
-    get segmentIndex() {
-      return this.segmentIndex_;
-    }
-    get partIndex() {
-      return this.partIndex_;
-    }
-  }
-  class SyncInfoData {
-    /**
-     *
-     * @param {SyncInfo} segmentSyncInfo - sync info for a given segment
-     * @param {Array<SyncInfo>} [partsSyncInfo] - sync infos for a list of parts for a given segment
-     */
-    constructor(segmentSyncInfo, partsSyncInfo = []) {
-      this.segmentSyncInfo_ = segmentSyncInfo;
-      this.partsSyncInfo_ = partsSyncInfo;
-    }
-    get segmentSyncInfo() {
-      return this.segmentSyncInfo_;
-    }
-    get partsSyncInfo() {
-      return this.partsSyncInfo_;
-    }
-    get hasPartsSyncInfo() {
-      return this.partsSyncInfo_.length > 0;
-    }
-    resetAppendStatus() {
-      this.segmentSyncInfo_.resetAppendedStatus();
-      this.partsSyncInfo_.forEach(partSyncInfo => partSyncInfo.resetAppendedStatus());
-    }
-  }
-  class MediaSequenceSync {
-    constructor() {
-      /**
-       * @type {Map<number, SyncInfoData>}
-       * @private
-       */
-      this.storage_ = new Map();
-      this.diagnostics_ = '';
-      this.isReliable_ = false;
-      this.start_ = -Infinity;
-      this.end_ = Infinity;
-    }
-    get start() {
-      return this.start_;
-    }
-    get end() {
-      return this.end_;
-    }
-    get diagnostics() {
-      return this.diagnostics_;
-    }
-    get isReliable() {
-      return this.isReliable_;
-    }
-    resetAppendedStatus() {
-      this.storage_.forEach(syncInfoData => syncInfoData.resetAppendStatus());
-    }
-    /**
-     * update sync storage
-     *
-     * @param {Object} playlist
-     * @param {number} currentTime
-     *
-     * @return {void}
-     */
-
-    update(playlist, currentTime) {
-      const {
-        mediaSequence,
-        segments
-      } = playlist;
-      this.isReliable_ = this.isReliablePlaylist_(mediaSequence, segments);
-      if (!this.isReliable_) {
-        return;
-      }
-      return this.updateStorage_(segments, mediaSequence, this.calculateBaseTime_(mediaSequence, currentTime));
-    }
-    /**
-     * @param {number} targetTime
-     * @return {SyncInfo|null}
-     */
-
-    getSyncInfoForTime(targetTime) {
-      for (const {
-        segmentSyncInfo,
-        partsSyncInfo
-      } of this.storage_.values()) {
-        // Normal segment flow:
-        if (!partsSyncInfo.length) {
-          if (segmentSyncInfo.isInRange(targetTime)) {
-            return segmentSyncInfo;
-          }
-        } else {
-          // Low latency flow:
-          for (const partSyncInfo of partsSyncInfo) {
-            if (partSyncInfo.isInRange(targetTime)) {
-              return partSyncInfo;
-            }
-          }
-        }
-      }
-      return null;
-    }
-    updateStorage_(segments, startingMediaSequence, startingTime) {
-      const newStorage = new Map();
-      let newDiagnostics = '\n';
-      let currentStart = startingTime;
-      let currentMediaSequence = startingMediaSequence;
-      this.start_ = currentStart;
-      segments.forEach((segment, segmentIndex) => {
-        const prevSyncInfoData = this.storage_.get(currentMediaSequence);
-        const segmentStart = currentStart;
-        const segmentEnd = segmentStart + segment.duration;
-        const segmentIsAppended = Boolean(prevSyncInfoData && prevSyncInfoData.segmentSyncInfo && prevSyncInfoData.segmentSyncInfo.isAppended);
-        const segmentSyncInfo = new SyncInfo({
-          start: segmentStart,
-          end: segmentEnd,
-          appended: segmentIsAppended,
-          segmentIndex
-        });
-        segment.syncInfo = segmentSyncInfo;
-        let currentPartStart = currentStart;
-        const partsSyncInfo = (segment.parts || []).map((part, partIndex) => {
-          const partStart = currentPartStart;
-          const partEnd = currentPartStart + part.duration;
-          const partIsAppended = Boolean(prevSyncInfoData && prevSyncInfoData.partsSyncInfo && prevSyncInfoData.partsSyncInfo[partIndex] && prevSyncInfoData.partsSyncInfo[partIndex].isAppended);
-          const partSyncInfo = new SyncInfo({
-            start: partStart,
-            end: partEnd,
-            appended: partIsAppended,
-            segmentIndex,
-            partIndex
-          });
-          currentPartStart = partEnd;
-          newDiagnostics += `Media Sequence: ${currentMediaSequence}.${partIndex} | Range: ${partStart} --> ${partEnd} | Appended: ${partIsAppended}\n`;
-          part.syncInfo = partSyncInfo;
-          return partSyncInfo;
-        });
-        newStorage.set(currentMediaSequence, new SyncInfoData(segmentSyncInfo, partsSyncInfo));
-        newDiagnostics += `${compactSegmentUrlDescription(segment.resolvedUri)} | Media Sequence: ${currentMediaSequence} | Range: ${segmentStart} --> ${segmentEnd} | Appended: ${segmentIsAppended}\n`;
-        currentMediaSequence++;
-        currentStart = segmentEnd;
-      });
-      this.end_ = currentStart;
-      this.storage_ = newStorage;
-      this.diagnostics_ = newDiagnostics;
-    }
-    calculateBaseTime_(mediaSequence, fallback) {
-      if (!this.storage_.size) {
-        // Initial setup flow.
-        return 0;
-      }
-      if (this.storage_.has(mediaSequence)) {
-        // Normal flow.
-        return this.storage_.get(mediaSequence).segmentSyncInfo.start;
-      } // Fallback flow.
-      // There is a gap between last recorded playlist and a new one received.
-
-      return fallback;
-    }
-    isReliablePlaylist_(mediaSequence, segments) {
-      return mediaSequence !== undefined && mediaSequence !== null && Array.isArray(segments) && segments.length;
-    }
-  }
-
-  /**
-   * @file sync-controller.js
-   */
-  // synchronize expired playlist segments.
-  // the max media sequence diff is 48 hours of live stream
-  // content with two second segments. Anything larger than that
-  // will likely be invalid.
-
-  const MAX_MEDIA_SEQUENCE_DIFF_FOR_SYNC = 86400;
-  const syncPointStrategies = [
-  // Stategy "VOD": Handle the VOD-case where the sync-point is *always*
-  //                the equivalence display-time 0 === segment-index 0
-  {
-    name: 'VOD',
-    run: (syncController, playlist, duration, currentTimeline, currentTime) => {
-      if (duration !== Infinity) {
-        const syncPoint = {
-          time: 0,
-          segmentIndex: 0,
-          partIndex: null
-        };
-        return syncPoint;
-      }
-      return null;
-    }
-  }, {
-    name: 'MediaSequence',
-    /**
-     * run media sequence strategy
-     *
-     * @param {SyncController} syncController
-     * @param {Object} playlist
-     * @param {number} duration
-     * @param {number} currentTimeline
-     * @param {number} currentTime
-     * @param {string} type
-     */
-    run: (syncController, playlist, duration, currentTimeline, currentTime, type) => {
-      const mediaSequenceSync = syncController.getMediaSequenceSync(type);
-      if (!mediaSequenceSync) {
-        return null;
-      }
-      if (!mediaSequenceSync.isReliable) {
-        return null;
-      }
-      const syncInfo = mediaSequenceSync.getSyncInfoForTime(currentTime);
-      if (!syncInfo) {
-        return null;
-      }
-      return {
-        time: syncInfo.start,
-        partIndex: syncInfo.partIndex,
-        segmentIndex: syncInfo.segmentIndex
-      };
-    }
-  },
-  // Stategy "ProgramDateTime": We have a program-date-time tag in this playlist
-  {
-    name: 'ProgramDateTime',
-    run: (syncController, playlist, duration, currentTimeline, currentTime) => {
-      if (!Object.keys(syncController.timelineToDatetimeMappings).length) {
-        return null;
-      }
-      let syncPoint = null;
-      let lastDistance = null;
-      const partsAndSegments = getPartsAndSegments(playlist);
-      currentTime = currentTime || 0;
-      for (let i = 0; i < partsAndSegments.length; i++) {
-        // start from the end and loop backwards for live
-        // or start from the front and loop forwards for non-live
-        const index = playlist.endList || currentTime === 0 ? i : partsAndSegments.length - (i + 1);
-        const partAndSegment = partsAndSegments[index];
-        const segment = partAndSegment.segment;
-        const datetimeMapping = syncController.timelineToDatetimeMappings[segment.timeline];
-        if (!datetimeMapping || !segment.dateTimeObject) {
-          continue;
-        }
-        const segmentTime = segment.dateTimeObject.getTime() / 1000;
-        let start = segmentTime + datetimeMapping; // take part duration into account.
-
-        if (segment.parts && typeof partAndSegment.partIndex === 'number') {
-          for (let z = 0; z < partAndSegment.partIndex; z++) {
-            start += segment.parts[z].duration;
-          }
-        }
-        const distance = Math.abs(currentTime - start); // Once the distance begins to increase, or if distance is 0, we have passed
-        // currentTime and can stop looking for better candidates
-
-        if (lastDistance !== null && (distance === 0 || lastDistance < distance)) {
-          break;
-        }
-        lastDistance = distance;
-        syncPoint = {
-          time: start,
-          segmentIndex: partAndSegment.segmentIndex,
-          partIndex: partAndSegment.partIndex
-        };
-      }
-      return syncPoint;
-    }
-  },
-  // Stategy "Segment": We have a known time mapping for a timeline and a
-  //                    segment in the current timeline with timing data
-  {
-    name: 'Segment',
-    run: (syncController, playlist, duration, currentTimeline, currentTime) => {
-      let syncPoint = null;
-      let lastDistance = null;
-      currentTime = currentTime || 0;
-      const partsAndSegments = getPartsAndSegments(playlist);
-      for (let i = 0; i < partsAndSegments.length; i++) {
-        // start from the end and loop backwards for live
-        // or start from the front and loop forwards for non-live
-        const index = playlist.endList || currentTime === 0 ? i : partsAndSegments.length - (i + 1);
-        const partAndSegment = partsAndSegments[index];
-        const segment = partAndSegment.segment;
-        const start = partAndSegment.part && partAndSegment.part.start || segment && segment.start;
-        if (segment.timeline === currentTimeline && typeof start !== 'undefined') {
-          const distance = Math.abs(currentTime - start); // Once the distance begins to increase, we have passed
-          // currentTime and can stop looking for better candidates
-
-          if (lastDistance !== null && lastDistance < distance) {
-            break;
-          }
-          if (!syncPoint || lastDistance === null || lastDistance >= distance) {
-            lastDistance = distance;
-            syncPoint = {
-              time: start,
-              segmentIndex: partAndSegment.segmentIndex,
-              partIndex: partAndSegment.partIndex
-            };
-          }
-        }
-      }
-      return syncPoint;
-    }
-  },
-  // Stategy "Discontinuity": We have a discontinuity with a known
-  //                          display-time
-  {
-    name: 'Discontinuity',
-    run: (syncController, playlist, duration, currentTimeline, currentTime) => {
-      let syncPoint = null;
-      currentTime = currentTime || 0;
-      if (playlist.discontinuityStarts && playlist.discontinuityStarts.length) {
-        let lastDistance = null;
-        for (let i = 0; i < playlist.discontinuityStarts.length; i++) {
-          const segmentIndex = playlist.discontinuityStarts[i];
-          const discontinuity = playlist.discontinuitySequence + i + 1;
-          const discontinuitySync = syncController.discontinuities[discontinuity];
-          if (discontinuitySync) {
-            const distance = Math.abs(currentTime - discontinuitySync.time); // Once the distance begins to increase, we have passed
-            // currentTime and can stop looking for better candidates
-
-            if (lastDistance !== null && lastDistance < distance) {
-              break;
-            }
-            if (!syncPoint || lastDistance === null || lastDistance >= distance) {
-              lastDistance = distance;
-              syncPoint = {
-                time: discontinuitySync.time,
-                segmentIndex,
-                partIndex: null
-              };
-            }
-          }
-        }
-      }
-      return syncPoint;
-    }
-  },
-  // Stategy "Playlist": We have a playlist with a known mapping of
-  //                     segment index to display time
-  {
-    name: 'Playlist',
-    run: (syncController, playlist, duration, currentTimeline, currentTime) => {
-      if (playlist.syncInfo) {
-        const syncPoint = {
-          time: playlist.syncInfo.time,
-          segmentIndex: playlist.syncInfo.mediaSequence - playlist.mediaSequence,
-          partIndex: null
-        };
-        return syncPoint;
-      }
-      return null;
-    }
-  }];
-  class SyncController extends videojs.EventTarget {
-    constructor(options = {}) {
-      super(); // ...for synching across variants
-
-      this.timelines = [];
-      this.discontinuities = [];
-      this.timelineToDatetimeMappings = {}; // TODO: this map should be only available for HLS. Since only HLS has MediaSequence.
-      //  For some reason this map helps with syncing between quality switch for MPEG-DASH as well.
-      //  Moreover if we disable this map for MPEG-DASH - quality switch will be broken.
-      //  MPEG-DASH should have its own separate sync strategy
-
-      this.mediaSequenceStorage_ = {
-        main: new MediaSequenceSync(),
-        audio: new MediaSequenceSync(),
-        vtt: new MediaSequenceSync()
-      };
-      this.logger_ = logger('SyncController');
-    }
-    /**
-     *
-     * @param {string} loaderType
-     * @return {MediaSequenceSync|null}
-     */
-
-    getMediaSequenceSync(loaderType) {
-      return this.mediaSequenceStorage_[loaderType] || null;
-    }
-    /**
-     * Find a sync-point for the playlist specified
-     *
-     * A sync-point is defined as a known mapping from display-time to
-     * a segment-index in the current playlist.
-     *
-     * @param {Playlist} playlist
-     *        The playlist that needs a sync-point
-     * @param {number} duration
-     *        Duration of the MediaSource (Infinite if playing a live source)
-     * @param {number} currentTimeline
-     *        The last timeline from which a segment was loaded
-     * @param {number} currentTime
-     *        Current player's time
-     * @param {string} type
-     *        Segment loader type
-     * @return {Object}
-     *          A sync-point object
-     */
-
-    getSyncPoint(playlist, duration, currentTimeline, currentTime, type) {
-      // Always use VOD sync point for VOD
-      if (duration !== Infinity) {
-        const vodSyncPointStrategy = syncPointStrategies.find(({
-          name
-        }) => name === 'VOD');
-        return vodSyncPointStrategy.run(this, playlist, duration);
-      }
-      const syncPoints = this.runStrategies_(playlist, duration, currentTimeline, currentTime, type);
-      if (!syncPoints.length) {
-        // Signal that we need to attempt to get a sync-point manually
-        // by fetching a segment in the playlist and constructing
-        // a sync-point from that information
-        return null;
-      } // If we have exact match just return it instead of finding the nearest distance
-
-      for (const syncPointInfo of syncPoints) {
-        const {
-          syncPoint,
-          strategy
-        } = syncPointInfo;
-        const {
-          segmentIndex,
-          time
-        } = syncPoint;
-        if (segmentIndex < 0) {
-          continue;
-        }
-        const selectedSegment = playlist.segments[segmentIndex];
-        const start = time;
-        const end = start + selectedSegment.duration;
-        this.logger_(`Strategy: ${strategy}. Current time: ${currentTime}. selected segment: ${segmentIndex}. Time: [${start} -> ${end}]}`);
-        if (currentTime >= start && currentTime < end) {
-          this.logger_('Found sync point with exact match: ', syncPoint);
-          return syncPoint;
-        }
-      } // Now find the sync-point that is closest to the currentTime because
-      // that should result in the most accurate guess about which segment
-      // to fetch
-
-      return this.selectSyncPoint_(syncPoints, {
-        key: 'time',
-        value: currentTime
-      });
-    }
-    /**
-     * Calculate the amount of time that has expired off the playlist during playback
-     *
-     * @param {Playlist} playlist
-     *        Playlist object to calculate expired from
-     * @param {number} duration
-     *        Duration of the MediaSource (Infinity if playling a live source)
-     * @return {number|null}
-     *          The amount of time that has expired off the playlist during playback. Null
-     *          if no sync-points for the playlist can be found.
-     */
-
-    getExpiredTime(playlist, duration) {
-      if (!playlist || !playlist.segments) {
-        return null;
-      }
-      const syncPoints = this.runStrategies_(playlist, duration, playlist.discontinuitySequence, 0); // Without sync-points, there is not enough information to determine the expired time
-
-      if (!syncPoints.length) {
-        return null;
-      }
-      const syncPoint = this.selectSyncPoint_(syncPoints, {
-        key: 'segmentIndex',
-        value: 0
-      }); // If the sync-point is beyond the start of the playlist, we want to subtract the
-      // duration from index 0 to syncPoint.segmentIndex instead of adding.
-
-      if (syncPoint.segmentIndex > 0) {
-        syncPoint.time *= -1;
-      }
-      return Math.abs(syncPoint.time + sumDurations({
-        defaultDuration: playlist.targetDuration,
-        durationList: playlist.segments,
-        startIndex: syncPoint.segmentIndex,
-        endIndex: 0
-      }));
-    }
-    /**
-     * Runs each sync-point strategy and returns a list of sync-points returned by the
-     * strategies
-     *
-     * @private
-     * @param {Playlist} playlist
-     *        The playlist that needs a sync-point
-     * @param {number} duration
-     *        Duration of the MediaSource (Infinity if playing a live source)
-     * @param {number} currentTimeline
-     *        The last timeline from which a segment was loaded
-     * @param {number} currentTime
-     *        Current player's time
-     * @param {string} type
-     *        Segment loader type
-     * @return {Array}
-     *          A list of sync-point objects
-     */
-
-    runStrategies_(playlist, duration, currentTimeline, currentTime, type) {
-      const syncPoints = []; // Try to find a sync-point in by utilizing various strategies...
-
-      for (let i = 0; i < syncPointStrategies.length; i++) {
-        const strategy = syncPointStrategies[i];
-        const syncPoint = strategy.run(this, playlist, duration, currentTimeline, currentTime, type);
-        if (syncPoint) {
-          syncPoint.strategy = strategy.name;
-          syncPoints.push({
-            strategy: strategy.name,
-            syncPoint
-          });
-        }
-      }
-      return syncPoints;
-    }
-    /**
-     * Selects the sync-point nearest the specified target
-     *
-     * @private
-     * @param {Array} syncPoints
-     *        List of sync-points to select from
-     * @param {Object} target
-     *        Object specifying the property and value we are targeting
-     * @param {string} target.key
-     *        Specifies the property to target. Must be either 'time' or 'segmentIndex'
-     * @param {number} target.value
-     *        The value to target for the specified key.
-     * @return {Object}
-     *          The sync-point nearest the target
-     */
-
-    selectSyncPoint_(syncPoints, target) {
-      let bestSyncPoint = syncPoints[0].syncPoint;
-      let bestDistance = Math.abs(syncPoints[0].syncPoint[target.key] - target.value);
-      let bestStrategy = syncPoints[0].strategy;
-      for (let i = 1; i < syncPoints.length; i++) {
-        const newDistance = Math.abs(syncPoints[i].syncPoint[target.key] - target.value);
-        if (newDistance < bestDistance) {
-          bestDistance = newDistance;
-          bestSyncPoint = syncPoints[i].syncPoint;
-          bestStrategy = syncPoints[i].strategy;
-        }
-      }
-      this.logger_(`syncPoint for [${target.key}: ${target.value}] chosen with strategy` + ` [${bestStrategy}]: [time:${bestSyncPoint.time},` + ` segmentIndex:${bestSyncPoint.segmentIndex}` + (typeof bestSyncPoint.partIndex === 'number' ? `,partIndex:${bestSyncPoint.partIndex}` : '') + ']');
-      return bestSyncPoint;
-    }
-    /**
-     * Save any meta-data present on the segments when segments leave
-     * the live window to the playlist to allow for synchronization at the
-     * playlist level later.
-     *
-     * @param {Playlist} oldPlaylist - The previous active playlist
-     * @param {Playlist} newPlaylist - The updated and most current playlist
-     */
-
-    saveExpiredSegmentInfo(oldPlaylist, newPlaylist) {
-      const mediaSequenceDiff = newPlaylist.mediaSequence - oldPlaylist.mediaSequence; // Ignore large media sequence gaps
-
-      if (mediaSequenceDiff > MAX_MEDIA_SEQUENCE_DIFF_FOR_SYNC) {
-        videojs.log.warn(`Not saving expired segment info. Media sequence gap ${mediaSequenceDiff} is too large.`);
-        return;
-      } // When a segment expires from the playlist and it has a start time
-      // save that information as a possible sync-point reference in future
-
-      for (let i = mediaSequenceDiff - 1; i >= 0; i--) {
-        const lastRemovedSegment = oldPlaylist.segments[i];
-        if (lastRemovedSegment && typeof lastRemovedSegment.start !== 'undefined') {
-          newPlaylist.syncInfo = {
-            mediaSequence: oldPlaylist.mediaSequence + i,
-            time: lastRemovedSegment.start
-          };
-          this.logger_(`playlist refresh sync: [time:${newPlaylist.syncInfo.time},` + ` mediaSequence: ${newPlaylist.syncInfo.mediaSequence}]`);
-          this.trigger('syncinfoupdate');
-          break;
-        }
-      }
-    }
-    /**
-     * Save the mapping from playlist's ProgramDateTime to display. This should only happen
-     * before segments start to load.
-     *
-     * @param {Playlist} playlist - The currently active playlist
-     */
-
-    setDateTimeMappingForStart(playlist) {
-      // It's possible for the playlist to be updated before playback starts, meaning time
-      // zero is not yet set. If, during these playlist refreshes, a discontinuity is
-      // crossed, then the old time zero mapping (for the prior timeline) would be retained
-      // unless the mappings are cleared.
-      this.timelineToDatetimeMappings = {};
-      if (playlist.segments && playlist.segments.length && playlist.segments[0].dateTimeObject) {
-        const firstSegment = playlist.segments[0];
-        const playlistTimestamp = firstSegment.dateTimeObject.getTime() / 1000;
-        this.timelineToDatetimeMappings[firstSegment.timeline] = -playlistTimestamp;
-      }
-    }
-    /**
-     * Calculates and saves timeline mappings, playlist sync info, and segment timing values
-     * based on the latest timing information.
-     *
-     * @param {Object} options
-     *        Options object
-     * @param {SegmentInfo} options.segmentInfo
-     *        The current active request information
-     * @param {boolean} options.shouldSaveTimelineMapping
-     *        If there's a timeline change, determines if the timeline mapping should be
-     *        saved for timeline mapping and program date time mappings.
-     */
-
-    saveSegmentTimingInfo({
-      segmentInfo,
-      shouldSaveTimelineMapping
-    }) {
-      const didCalculateSegmentTimeMapping = this.calculateSegmentTimeMapping_(segmentInfo, segmentInfo.timingInfo, shouldSaveTimelineMapping);
-      const segment = segmentInfo.segment;
-      if (didCalculateSegmentTimeMapping) {
-        this.saveDiscontinuitySyncInfo_(segmentInfo); // If the playlist does not have sync information yet, record that information
-        // now with segment timing information
-
-        if (!segmentInfo.playlist.syncInfo) {
-          segmentInfo.playlist.syncInfo = {
-            mediaSequence: segmentInfo.playlist.mediaSequence + segmentInfo.mediaIndex,
-            time: segment.start
-          };
-        }
-      }
-      const dateTime = segment.dateTimeObject;
-      if (segment.discontinuity && shouldSaveTimelineMapping && dateTime) {
-        this.timelineToDatetimeMappings[segment.timeline] = -(dateTime.getTime() / 1000);
-      }
-    }
-    timestampOffsetForTimeline(timeline) {
-      if (typeof this.timelines[timeline] === 'undefined') {
-        return null;
-      }
-      return this.timelines[timeline].time;
-    }
-    mappingForTimeline(timeline) {
-      if (typeof this.timelines[timeline] === 'undefined') {
-        return null;
-      }
-      return this.timelines[timeline].mapping;
-    }
-    /**
-     * Use the "media time" for a segment to generate a mapping to "display time" and
-     * save that display time to the segment.
-     *
-     * @private
-     * @param {SegmentInfo} segmentInfo
-     *        The current active request information
-     * @param {Object} timingInfo
-     *        The start and end time of the current segment in "media time"
-     * @param {boolean} shouldSaveTimelineMapping
-     *        If there's a timeline change, determines if the timeline mapping should be
-     *        saved in timelines.
-     * @return {boolean}
-     *          Returns false if segment time mapping could not be calculated
-     */
-
-    calculateSegmentTimeMapping_(segmentInfo, timingInfo, shouldSaveTimelineMapping) {
-      // TODO: remove side effects
-      const segment = segmentInfo.segment;
-      const part = segmentInfo.part;
-      let mappingObj = this.timelines[segmentInfo.timeline];
-      let start;
-      let end;
-      if (typeof segmentInfo.timestampOffset === 'number') {
-        mappingObj = {
-          time: segmentInfo.startOfSegment,
-          mapping: segmentInfo.startOfSegment - timingInfo.start
-        };
-        if (shouldSaveTimelineMapping) {
-          this.timelines[segmentInfo.timeline] = mappingObj;
-          this.trigger('timestampoffset');
-          this.logger_(`time mapping for timeline ${segmentInfo.timeline}: ` + `[time: ${mappingObj.time}] [mapping: ${mappingObj.mapping}]`);
-        }
-        start = segmentInfo.startOfSegment;
-        end = timingInfo.end + mappingObj.mapping;
-      } else if (mappingObj) {
-        start = timingInfo.start + mappingObj.mapping;
-        end = timingInfo.end + mappingObj.mapping;
-      } else {
-        return false;
-      }
-      if (part) {
-        part.start = start;
-        part.end = end;
-      } // If we don't have a segment start yet or the start value we got
-      // is less than our current segment.start value, save a new start value.
-      // We have to do this because parts will have segment timing info saved
-      // multiple times and we want segment start to be the earliest part start
-      // value for that segment.
-
-      if (!segment.start || start < segment.start) {
-        segment.start = start;
-      }
-      segment.end = end;
-      return true;
-    }
-    /**
-     * Each time we have discontinuity in the playlist, attempt to calculate the location
-     * in display of the start of the discontinuity and save that. We also save an accuracy
-     * value so that we save values with the most accuracy (closest to 0.)
-     *
-     * @private
-     * @param {SegmentInfo} segmentInfo - The current active request information
-     */
-
-    saveDiscontinuitySyncInfo_(segmentInfo) {
-      const playlist = segmentInfo.playlist;
-      const segment = segmentInfo.segment; // If the current segment is a discontinuity then we know exactly where
-      // the start of the range and it's accuracy is 0 (greater accuracy values
-      // mean more approximation)
-
-      if (segment.discontinuity) {
-        this.discontinuities[segment.timeline] = {
-          time: segment.start,
-          accuracy: 0
-        };
-      } else if (playlist.discontinuityStarts && playlist.discontinuityStarts.length) {
-        // Search for future discontinuities that we can provide better timing
-        // information for and save that information for sync purposes
-        for (let i = 0; i < playlist.discontinuityStarts.length; i++) {
-          const segmentIndex = playlist.discontinuityStarts[i];
-          const discontinuity = playlist.discontinuitySequence + i + 1;
-          const mediaIndexDiff = segmentIndex - segmentInfo.mediaIndex;
-          const accuracy = Math.abs(mediaIndexDiff);
-          if (!this.discontinuities[discontinuity] || this.discontinuities[discontinuity].accuracy > accuracy) {
-            let time;
-            if (mediaIndexDiff < 0) {
-              time = segment.start - sumDurations({
-                defaultDuration: playlist.targetDuration,
-                durationList: playlist.segments,
-                startIndex: segmentInfo.mediaIndex,
-                endIndex: segmentIndex
-              });
-            } else {
-              time = segment.end + sumDurations({
-                defaultDuration: playlist.targetDuration,
-                durationList: playlist.segments,
-                startIndex: segmentInfo.mediaIndex + 1,
-                endIndex: segmentIndex
-              });
-            }
-            this.discontinuities[discontinuity] = {
-              time,
-              accuracy
-            };
-          }
-        }
-      }
-    }
-    dispose() {
-      this.trigger('dispose');
-      this.off();
-    }
-  }
-
-  /**
-   * The TimelineChangeController acts as a source for segment loaders to listen for and
-   * keep track of latest and pending timeline changes. This is useful to ensure proper
-   * sync, as each loader may need to make a consideration for what timeline the other
-   * loader is on before making changes which could impact the other loader's media.
-   *
-   * @class TimelineChangeController
-   * @extends videojs.EventTarget
-   */
-
-  class TimelineChangeController extends videojs.EventTarget {
-    constructor() {
-      super();
-      this.pendingTimelineChanges_ = {};
-      this.lastTimelineChanges_ = {};
-    }
-    clearPendingTimelineChange(type) {
-      this.pendingTimelineChanges_[type] = null;
-      this.trigger('pendingtimelinechange');
-    }
-    pendingTimelineChange({
-      type,
-      from,
-      to
-    }) {
-      if (typeof from === 'number' && typeof to === 'number') {
-        this.pendingTimelineChanges_[type] = {
-          type,
-          from,
-          to
-        };
-        this.trigger('pendingtimelinechange');
-      }
-      return this.pendingTimelineChanges_[type];
-    }
-    lastTimelineChange({
-      type,
-      from,
-      to
-    }) {
-      if (typeof from === 'number' && typeof to === 'number') {
-        this.lastTimelineChanges_[type] = {
-          type,
-          from,
-          to
-        };
-        delete this.pendingTimelineChanges_[type];
-        this.trigger('timelinechange');
-      }
-      return this.lastTimelineChanges_[type];
-    }
-    dispose() {
-      this.trigger('dispose');
-      this.pendingTimelineChanges_ = {};
-      this.lastTimelineChanges_ = {};
-      this.off();
-    }
-  }
-
-  /* rollup-plugin-worker-factory start for worker!/home/runner/work/http-streaming/http-streaming/src/decrypter-worker.js */
-  const workerCode = transform(getWorkerString(function () {
-    /**
-     * @file stream.js
-     */
-
-    /**
-     * A lightweight readable stream implemention that handles event dispatching.
-     *
-     * @class Stream
-     */
-
-    var Stream = /*#__PURE__*/function () {
-      function Stream() {
-        this.listeners = {};
-      }
-      /**
-       * Add a listener for a specified event type.
-       *
-       * @param {string} type the event name
-       * @param {Function} listener the callback to be invoked when an event of
-       * the specified type occurs
-       */
-
-      var _proto = Stream.prototype;
-      _proto.on = function on(type, listener) {
-        if (!this.listeners[type]) {
-          this.listeners[type] = [];
-        }
-        this.listeners[type].push(listener);
-      }
-      /**
-       * Remove a listener for a specified event type.
-       *
-       * @param {string} type the event name
-       * @param {Function} listener  a function previously registered for this
-       * type of event through `on`
-       * @return {boolean} if we could turn it off or not
-       */;
-
-      _proto.off = function off(type, listener) {
-        if (!this.listeners[type]) {
-          return false;
-        }
-        var index = this.listeners[type].indexOf(listener); // TODO: which is better?
-        // In Video.js we slice listener functions
-        // on trigger so that it does not mess up the order
-        // while we loop through.
-        //
-        // Here we slice on off so that the loop in trigger
-        // can continue using it's old reference to loop without
-        // messing up the order.
-
-        this.listeners[type] = this.listeners[type].slice(0);
-        this.listeners[type].splice(index, 1);
-        return index > -1;
-      }
-      /**
-       * Trigger an event of the specified type on this stream. Any additional
-       * arguments to this function are passed as parameters to event listeners.
-       *
-       * @param {string} type the event name
-       */;
-
-      _proto.trigger = function trigger(type) {
-        var callbacks = this.listeners[type];
-        if (!callbacks) {
-          return;
-        } // Slicing the arguments on every invocation of this method
-        // can add a significant amount of overhead. Avoid the
-        // intermediate object creation for the common case of a
-        // single callback argument
-
-        if (arguments.length === 2) {
-          var length = callbacks.length;
-          for (var i = 0; i < length; ++i) {
-            callbacks[i].call(this, arguments[1]);
-          }
-        } else {
-          var args = Array.prototype.slice.call(arguments, 1);
-          var _length = callbacks.length;
-          for (var _i = 0; _i < _length; ++_i) {
-            callbacks[_i].apply(this, args);
-          }
-        }
-      }
-      /**
-       * Destroys the stream and cleans up.
-       */;
-
-      _proto.dispose = function dispose() {
-        this.listeners = {};
-      }
-      /**
-       * Forwards all `data` events on this stream to the destination stream. The
-       * destination stream should provide a method `push` to receive the data
-       * events as they arrive.
-       *
-       * @param {Stream} destination the stream that will receive all `data` events
-       * @see http://nodejs.org/api/stream.html#stream_readable_pipe_destination_options
-       */;
-
-      _proto.pipe = function pipe(destination) {
-        this.on('data', function (data) {
-          destination.push(data);
-        });
-      };
-      return Stream;
-    }();
-    /*! @name pkcs7 @version 1.0.4 @license Apache-2.0 */
-
-    /**
-     * Returns the subarray of a Uint8Array without PKCS#7 padding.
-     *
-     * @param padded {Uint8Array} unencrypted bytes that have been padded
-     * @return {Uint8Array} the unpadded bytes
-     * @see http://tools.ietf.org/html/rfc5652
-     */
-
-    function unpad(padded) {
-      return padded.subarray(0, padded.byteLength - padded[padded.byteLength - 1]);
-    }
-    /*! @name aes-decrypter @version 4.0.1 @license Apache-2.0 */
-
-    /**
-     * @file aes.js
-     *
-     * This file contains an adaptation of the AES decryption algorithm
-     * from the Standford Javascript Cryptography Library. That work is
-     * covered by the following copyright and permissions notice:
-     *
-     * Copyright 2009-2010 Emily Stark, Mike Hamburg, Dan Boneh.
-     * All rights reserved.
-     *
-     * Redistribution and use in source and binary forms, with or without
-     * modification, are permitted provided that the following conditions are
-     * met:
-     *
-     * 1. Redistributions of source code must retain the above copyright
-     *    notice, this list of conditions and the following disclaimer.
-     *
-     * 2. Redistributions in binary form must reproduce the above
-     *    copyright notice, this list of conditions and the following
-     *    disclaimer in the documentation and/or other materials provided
-     *    with the distribution.
-     *
-     * THIS SOFTWARE IS PROVIDED BY THE AUTHORS ``AS IS'' AND ANY EXPRESS OR
-     * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
-     * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
-     * DISCLAIMED. IN NO EVENT SHALL <COPYRIGHT HOLDER> OR CONTRIBUTORS BE
-     * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
-     * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
-     * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
-     * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
-     * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
-     * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
-     * IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-     *
-     * The views and conclusions contained in the software and documentation
-     * are those of the authors and should not be interpreted as representing
-     * official policies, either expressed or implied, of the authors.
-     */
-
-    /**
-     * Expand the S-box tables.
-     *
-     * @private
-     */
-
-    const precompute = function () {
-      const tables = [[[], [], [], [], []], [[], [], [], [], []]];
-      const encTable = tables[0];
-      const decTable = tables[1];
-      const sbox = encTable[4];
-      const sboxInv = decTable[4];
-      let i;
-      let x;
-      let xInv;
-      const d = [];
-      const th = [];
-      let x2;
-      let x4;
-      let x8;
-      let s;
-      let tEnc;
-      let tDec; // Compute double and third tables
-
-      for (i = 0; i < 256; i++) {
-        th[(d[i] = i << 1 ^ (i >> 7) * 283) ^ i] = i;
-      }
-      for (x = xInv = 0; !sbox[x]; x ^= x2 || 1, xInv = th[xInv] || 1) {
-        // Compute sbox
-        s = xInv ^ xInv << 1 ^ xInv << 2 ^ xInv << 3 ^ xInv << 4;
-        s = s >> 8 ^ s & 255 ^ 99;
-        sbox[x] = s;
-        sboxInv[s] = x; // Compute MixColumns
-
-        x8 = d[x4 = d[x2 = d[x]]];
-        tDec = x8 * 0x1010101 ^ x4 * 0x10001 ^ x2 * 0x101 ^ x * 0x1010100;
-        tEnc = d[s] * 0x101 ^ s * 0x1010100;
-        for (i = 0; i < 4; i++) {
-          encTable[i][x] = tEnc = tEnc << 24 ^ tEnc >>> 8;
-          decTable[i][s] = tDec = tDec << 24 ^ tDec >>> 8;
-        }
-      } // Compactify. Considerable speedup on Firefox.
-
-      for (i = 0; i < 5; i++) {
-        encTable[i] = encTable[i].slice(0);
-        decTable[i] = decTable[i].slice(0);
-      }
-      return tables;
-    };
-    let aesTables = null;
-    /**
-     * Schedule out an AES key for both encryption and decryption. This
-     * is a low-level class. Use a cipher mode to do bulk encryption.
-     *
-     * @class AES
-     * @param key {Array} The key as an array of 4, 6 or 8 words.
-     */
-
-    class AES {
-      constructor(key) {
-        /**
-        * The expanded S-box and inverse S-box tables. These will be computed
-        * on the client so that we don't have to send them down the wire.
-        *
-        * There are two tables, _tables[0] is for encryption and
-        * _tables[1] is for decryption.
-        *
-        * The first 4 sub-tables are the expanded S-box with MixColumns. The
-        * last (_tables[01][4]) is the S-box itself.
-        *
-        * @private
-        */
-        // if we have yet to precompute the S-box tables
-        // do so now
-        if (!aesTables) {
-          aesTables = precompute();
-        } // then make a copy of that object for use
-
-        this._tables = [[aesTables[0][0].slice(), aesTables[0][1].slice(), aesTables[0][2].slice(), aesTables[0][3].slice(), aesTables[0][4].slice()], [aesTables[1][0].slice(), aesTables[1][1].slice(), aesTables[1][2].slice(), aesTables[1][3].slice(), aesTables[1][4].slice()]];
-        let i;
-        let j;
-        let tmp;
-        const sbox = this._tables[0][4];
-        const decTable = this._tables[1];
-        const keyLen = key.length;
-        let rcon = 1;
-        if (keyLen !== 4 && keyLen !== 6 && keyLen !== 8) {
-          throw new Error('Invalid aes key size');
-        }
-        const encKey = key.slice(0);
-        const decKey = [];
-        this._key = [encKey, decKey]; // schedule encryption keys
-
-        for (i = keyLen; i < 4 * keyLen + 28; i++) {
-          tmp = encKey[i - 1]; // apply sbox
-
-          if (i % keyLen === 0 || keyLen === 8 && i % keyLen === 4) {
-            tmp = sbox[tmp >>> 24] << 24 ^ sbox[tmp >> 16 & 255] << 16 ^ sbox[tmp >> 8 & 255] << 8 ^ sbox[tmp & 255]; // shift rows and add rcon
-
-            if (i % keyLen === 0) {
-              tmp = tmp << 8 ^ tmp >>> 24 ^ rcon << 24;
-              rcon = rcon << 1 ^ (rcon >> 7) * 283;
-            }
-          }
-          encKey[i] = encKey[i - keyLen] ^ tmp;
-        } // schedule decryption keys
-
-        for (j = 0; i; j++, i--) {
-          tmp = encKey[j & 3 ? i : i - 4];
-          if (i <= 4 || j < 4) {
-            decKey[j] = tmp;
-          } else {
-            decKey[j] = decTable[0][sbox[tmp >>> 24]] ^ decTable[1][sbox[tmp >> 16 & 255]] ^ decTable[2][sbox[tmp >> 8 & 255]] ^ decTable[3][sbox[tmp & 255]];
-          }
-        }
-      }
-      /**
-       * Decrypt 16 bytes, specified as four 32-bit words.
-       *
-       * @param {number} encrypted0 the first word to decrypt
-       * @param {number} encrypted1 the second word to decrypt
-       * @param {number} encrypted2 the third word to decrypt
-       * @param {number} encrypted3 the fourth word to decrypt
-       * @param {Int32Array} out the array to write the decrypted words
-       * into
-       * @param {number} offset the offset into the output array to start
-       * writing results
-       * @return {Array} The plaintext.
-       */
-
-      decrypt(encrypted0, encrypted1, encrypted2, encrypted3, out, offset) {
-        const key = this._key[1]; // state variables a,b,c,d are loaded with pre-whitened data
-
-        let a = encrypted0 ^ key[0];
-        let b = encrypted3 ^ key[1];
-        let c = encrypted2 ^ key[2];
-        let d = encrypted1 ^ key[3];
-        let a2;
-        let b2;
-        let c2; // key.length === 2 ?
-
-        const nInnerRounds = key.length / 4 - 2;
-        let i;
-        let kIndex = 4;
-        const table = this._tables[1]; // load up the tables
-
-        const table0 = table[0];
-        const table1 = table[1];
-        const table2 = table[2];
-        const table3 = table[3];
-        const sbox = table[4]; // Inner rounds. Cribbed from OpenSSL.
-
-        for (i = 0; i < nInnerRounds; i++) {
-          a2 = table0[a >>> 24] ^ table1[b >> 16 & 255] ^ table2[c >> 8 & 255] ^ table3[d & 255] ^ key[kIndex];
-          b2 = table0[b >>> 24] ^ table1[c >> 16 & 255] ^ table2[d >> 8 & 255] ^ table3[a & 255] ^ key[kIndex + 1];
-          c2 = table0[c >>> 24] ^ table1[d >> 16 & 255] ^ table2[a >> 8 & 255] ^ table3[b & 255] ^ key[kIndex + 2];
-          d = table0[d >>> 24] ^ table1[a >> 16 & 255] ^ table2[b >> 8 & 255] ^ table3[c & 255] ^ key[kIndex + 3];
-          kIndex += 4;
-          a = a2;
-          b = b2;
-          c = c2;
-        } // Last round.
-
-        for (i = 0; i < 4; i++) {
-          out[(3 & -i) + offset] = sbox[a >>> 24] << 24 ^ sbox[b >> 16 & 255] << 16 ^ sbox[c >> 8 & 255] << 8 ^ sbox[d & 255] ^ key[kIndex++];
-          a2 = a;
-          a = b;
-          b = c;
-          c = d;
-          d = a2;
-        }
-      }
-    }
-    /**
-     * @file async-stream.js
-     */
-
-    /**
-     * A wrapper around the Stream class to use setTimeout
-     * and run stream "jobs" Asynchronously
-     *
-     * @class AsyncStream
-     * @extends Stream
-     */
-
-    class AsyncStream extends Stream {
-      constructor() {
-        super(Stream);
-        this.jobs = [];
-        this.delay = 1;
-        this.timeout_ = null;
-      }
-      /**
-       * process an async job
-       *
-       * @private
-       */
-
-      processJob_() {
-        this.jobs.shift()();
-        if (this.jobs.length) {
-          this.timeout_ = setTimeout(this.processJob_.bind(this), this.delay);
-        } else {
-          this.timeout_ = null;
-        }
-      }
-      /**
-       * push a job into the stream
-       *
-       * @param {Function} job the job to push into the stream
-       */
-
-      push(job) {
-        this.jobs.push(job);
-        if (!this.timeout_) {
-          this.timeout_ = setTimeout(this.processJob_.bind(this), this.delay);
-        }
-      }
-    }
-    /**
-     * @file decrypter.js
-     *
-     * An asynchronous implementation of AES-128 CBC decryption with
-     * PKCS#7 padding.
-     */
-
-    /**
-     * Convert network-order (big-endian) bytes into their little-endian
-     * representation.
-     */
-
-    const ntoh = function (word) {
-      return word << 24 | (word & 0xff00) << 8 | (word & 0xff0000) >> 8 | word >>> 24;
-    };
-    /**
-     * Decrypt bytes using AES-128 with CBC and PKCS#7 padding.
-     *
-     * @param {Uint8Array} encrypted the encrypted bytes
-     * @param {Uint32Array} key the bytes of the decryption key
-     * @param {Uint32Array} initVector the initialization vector (IV) to
-     * use for the first round of CBC.
-     * @return {Uint8Array} the decrypted bytes
-     *
-     * @see http://en.wikipedia.org/wiki/Advanced_Encryption_Standard
-     * @see http://en.wikipedia.org/wiki/Block_cipher_mode_of_operation#Cipher_Block_Chaining_.28CBC.29
-     * @see https://tools.ietf.org/html/rfc2315
-     */
-
-    const decrypt = function (encrypted, key, initVector) {
-      // word-level access to the encrypted bytes
-      const encrypted32 = new Int32Array(encrypted.buffer, encrypted.byteOffset, encrypted.byteLength >> 2);
-      const decipher = new AES(Array.prototype.slice.call(key)); // byte and word-level access for the decrypted output
-
-      const decrypted = new Uint8Array(encrypted.byteLength);
-      const decrypted32 = new Int32Array(decrypted.buffer); // temporary variables for working with the IV, encrypted, and
-      // decrypted data
-
-      let init0;
-      let init1;
-      let init2;
-      let init3;
-      let encrypted0;
-      let encrypted1;
-      let encrypted2;
-      let encrypted3; // iteration variable
-
-      let wordIx; // pull out the words of the IV to ensure we don't modify the
-      // passed-in reference and easier access
-
-      init0 = initVector[0];
-      init1 = initVector[1];
-      init2 = initVector[2];
-      init3 = initVector[3]; // decrypt four word sequences, applying cipher-block chaining (CBC)
-      // to each decrypted block
-
-      for (wordIx = 0; wordIx < encrypted32.length; wordIx += 4) {
-        // convert big-endian (network order) words into little-endian
-        // (javascript order)
-        encrypted0 = ntoh(encrypted32[wordIx]);
-        encrypted1 = ntoh(encrypted32[wordIx + 1]);
-        encrypted2 = ntoh(encrypted32[wordIx + 2]);
-        encrypted3 = ntoh(encrypted32[wordIx + 3]); // decrypt the block
-
-        decipher.decrypt(encrypted0, encrypted1, encrypted2, encrypted3, decrypted32, wordIx); // XOR with the IV, and restore network byte-order to obtain the
-        // plaintext
-
-        decrypted32[wordIx] = ntoh(decrypted32[wordIx] ^ init0);
-        decrypted32[wordIx + 1] = ntoh(decrypted32[wordIx + 1] ^ init1);
-        decrypted32[wordIx + 2] = ntoh(decrypted32[wordIx + 2] ^ init2);
-        decrypted32[wordIx + 3] = ntoh(decrypted32[wordIx + 3] ^ init3); // setup the IV for the next round
-
-        init0 = encrypted0;
-        init1 = encrypted1;
-        init2 = encrypted2;
-        init3 = encrypted3;
-      }
-      return decrypted;
-    };
-    /**
-     * The `Decrypter` class that manages decryption of AES
-     * data through `AsyncStream` objects and the `decrypt`
-     * function
-     *
-     * @param {Uint8Array} encrypted the encrypted bytes
-     * @param {Uint32Array} key the bytes of the decryption key
-     * @param {Uint32Array} initVector the initialization vector (IV) to
-     * @param {Function} done the function to run when done
-     * @class Decrypter
-     */
-
-    class Decrypter {
-      constructor(encrypted, key, initVector, done) {
-        const step = Decrypter.STEP;
-        const encrypted32 = new Int32Array(encrypted.buffer);
-        const decrypted = new Uint8Array(encrypted.byteLength);
-        let i = 0;
-        this.asyncStream_ = new AsyncStream(); // split up the encryption job and do the individual chunks asynchronously
-
-        this.asyncStream_.push(this.decryptChunk_(encrypted32.subarray(i, i + step), key, initVector, decrypted));
-        for (i = step; i < encrypted32.length; i += step) {
-          initVector = new Uint32Array([ntoh(encrypted32[i - 4]), ntoh(encrypted32[i - 3]), ntoh(encrypted32[i - 2]), ntoh(encrypted32[i - 1])]);
-          this.asyncStream_.push(this.decryptChunk_(encrypted32.subarray(i, i + step), key, initVector, decrypted));
-        } // invoke the done() callback when everything is finished
-
-        this.asyncStream_.push(function () {
-          // remove pkcs#7 padding from the decrypted bytes
-          done(null, unpad(decrypted));
-        });
-      }
-      /**
-       * a getter for step the maximum number of bytes to process at one time
-       *
-       * @return {number} the value of step 32000
-       */
-
-      static get STEP() {
-        // 4 * 8000;
-        return 32000;
-      }
-      /**
-       * @private
-       */
-
-      decryptChunk_(encrypted, key, initVector, decrypted) {
-        return function () {
-          const bytes = decrypt(encrypted, key, initVector);
-          decrypted.set(bytes, encrypted.byteOffset);
-        };
-      }
-    }
-    var commonjsGlobal = typeof globalThis !== 'undefined' ? globalThis : typeof window !== 'undefined' ? window : typeof global !== 'undefined' ? global : typeof self !== 'undefined' ? self : {};
-    var win;
-    if (typeof window !== "undefined") {
-      win = window;
-    } else if (typeof commonjsGlobal !== "undefined") {
-      win = commonjsGlobal;
-    } else if (typeof self !== "undefined") {
-      win = self;
-    } else {
-      win = {};
-    }
-    var window_1 = win;
-    var isArrayBufferView = function isArrayBufferView(obj) {
-      if (ArrayBuffer.isView === 'function') {
-        return ArrayBuffer.isView(obj);
-      }
-      return obj && obj.buffer instanceof ArrayBuffer;
-    };
-    var BigInt = window_1.BigInt || Number;
-    [BigInt('0x1'), BigInt('0x100'), BigInt('0x10000'), BigInt('0x1000000'), BigInt('0x100000000'), BigInt('0x10000000000'), BigInt('0x1000000000000'), BigInt('0x100000000000000'), BigInt('0x10000000000000000')];
-    (function () {
-      var a = new Uint16Array([0xFFCC]);
-      var b = new Uint8Array(a.buffer, a.byteOffset, a.byteLength);
-      if (b[0] === 0xFF) {
-        return 'big';
-      }
-      if (b[0] === 0xCC) {
-        return 'little';
-      }
-      return 'unknown';
-    })();
-    /**
-     * Creates an object for sending to a web worker modifying properties that are TypedArrays
-     * into a new object with seperated properties for the buffer, byteOffset, and byteLength.
-     *
-     * @param {Object} message
-     *        Object of properties and values to send to the web worker
-     * @return {Object}
-     *         Modified message with TypedArray values expanded
-     * @function createTransferableMessage
-     */
-
-    const createTransferableMessage = function (message) {
-      const transferable = {};
-      Object.keys(message).forEach(key => {
-        const value = message[key];
-        if (isArrayBufferView(value)) {
-          transferable[key] = {
-            bytes: value.buffer,
-            byteOffset: value.byteOffset,
-            byteLength: value.byteLength
-          };
-        } else {
-          transferable[key] = value;
-        }
-      });
-      return transferable;
-    };
-    /* global self */
-
-    /**
-     * Our web worker interface so that things can talk to aes-decrypter
-     * that will be running in a web worker. the scope is passed to this by
-     * webworkify.
-     */
-
-    self.onmessage = function (event) {
-      const data = event.data;
-      const encrypted = new Uint8Array(data.encrypted.bytes, data.encrypted.byteOffset, data.encrypted.byteLength);
-      const key = new Uint32Array(data.key.bytes, data.key.byteOffset, data.key.byteLength / 4);
-      const iv = new Uint32Array(data.iv.bytes, data.iv.byteOffset, data.iv.byteLength / 4);
-      /* eslint-disable no-new, handle-callback-err */
-
-      new Decrypter(encrypted, key, iv, function (err, bytes) {
-        self.postMessage(createTransferableMessage({
-          source: data.source,
-          decrypted: bytes
-        }), [bytes.buffer]);
-      });
-      /* eslint-enable */
-    };
-  }));
-
-  var Decrypter = factory(workerCode);
-  /* rollup-plugin-worker-factory end for worker!/home/runner/work/http-streaming/http-streaming/src/decrypter-worker.js */
-
-  /**
-   * Convert the properties of an HLS track into an audioTrackKind.
-   *
-   * @private
-   */
-
-  const audioTrackKind_ = properties => {
-    let kind = properties.default ? 'main' : 'alternative';
-    if (properties.characteristics && properties.characteristics.indexOf('public.accessibility.describes-video') >= 0) {
-      kind = 'main-desc';
-    }
-    return kind;
-  };
-  /**
-   * Pause provided segment loader and playlist loader if active
-   *
-   * @param {SegmentLoader} segmentLoader
-   *        SegmentLoader to pause
-   * @param {Object} mediaType
-   *        Active media type
-   * @function stopLoaders
-   */
-
-  const stopLoaders = (segmentLoader, mediaType) => {
-    segmentLoader.abort();
-    segmentLoader.pause();
-    if (mediaType && mediaType.activePlaylistLoader) {
-      mediaType.activePlaylistLoader.pause();
-      mediaType.activePlaylistLoader = null;
-    }
-  };
-  /**
-   * Start loading provided segment loader and playlist loader
-   *
-   * @param {PlaylistLoader} playlistLoader
-   *        PlaylistLoader to start loading
-   * @param {Object} mediaType
-   *        Active media type
-   * @function startLoaders
-   */
-
-  const startLoaders = (playlistLoader, mediaType) => {
-    // Segment loader will be started after `loadedmetadata` or `loadedplaylist` from the
-    // playlist loader
-    mediaType.activePlaylistLoader = playlistLoader;
-    playlistLoader.load();
-  };
-  /**
-   * Returns a function to be called when the media group changes. It performs a
-   * non-destructive (preserve the buffer) resync of the SegmentLoader. This is because a
-   * change of group is merely a rendition switch of the same content at another encoding,
-   * rather than a change of content, such as switching audio from English to Spanish.
-   *
-   * @param {string} type
-   *        MediaGroup type
-   * @param {Object} settings
-   *        Object containing required information for media groups
-   * @return {Function}
-   *         Handler for a non-destructive resync of SegmentLoader when the active media
-   *         group changes.
-   * @function onGroupChanged
-   */
-
-  const onGroupChanged = (type, settings) => () => {
-    const {
-      segmentLoaders: {
-        [type]: segmentLoader,
-        main: mainSegmentLoader
-      },
-      mediaTypes: {
-        [type]: mediaType
-      }
-    } = settings;
-    const activeTrack = mediaType.activeTrack();
-    const activeGroup = mediaType.getActiveGroup();
-    const previousActiveLoader = mediaType.activePlaylistLoader;
-    const lastGroup = mediaType.lastGroup_; // the group did not change do nothing
-
-    if (activeGroup && lastGroup && activeGroup.id === lastGroup.id) {
-      return;
-    }
-    mediaType.lastGroup_ = activeGroup;
-    mediaType.lastTrack_ = activeTrack;
-    stopLoaders(segmentLoader, mediaType);
-    if (!activeGroup || activeGroup.isMainPlaylist) {
-      // there is no group active or active group is a main playlist and won't change
-      return;
-    }
-    if (!activeGroup.playlistLoader) {
-      if (previousActiveLoader) {
-        // The previous group had a playlist loader but the new active group does not
-        // this means we are switching from demuxed to muxed audio. In this case we want to
-        // do a destructive reset of the main segment loader and not restart the audio
-        // loaders.
-        mainSegmentLoader.resetEverything();
-      }
-      return;
-    } // Non-destructive resync
-
-    segmentLoader.resyncLoader();
-    startLoaders(activeGroup.playlistLoader, mediaType);
-  };
-  const onGroupChanging = (type, settings) => () => {
-    const {
-      segmentLoaders: {
-        [type]: segmentLoader
-      },
-      mediaTypes: {
-        [type]: mediaType
-      }
-    } = settings;
-    mediaType.lastGroup_ = null;
-    segmentLoader.abort();
-    segmentLoader.pause();
-  };
-  /**
-   * Returns a function to be called when the media track changes. It performs a
-   * destructive reset of the SegmentLoader to ensure we start loading as close to
-   * currentTime as possible.
-   *
-   * @param {string} type
-   *        MediaGroup type
-   * @param {Object} settings
-   *        Object containing required information for media groups
-   * @return {Function}
-   *         Handler for a destructive reset of SegmentLoader when the active media
-   *         track changes.
-   * @function onTrackChanged
-   */
-
-  const onTrackChanged = (type, settings) => () => {
-    const {
-      mainPlaylistLoader,
-      segmentLoaders: {
-        [type]: segmentLoader,
-        main: mainSegmentLoader
-      },
-      mediaTypes: {
-        [type]: mediaType
-      }
-    } = settings;
-    const activeTrack = mediaType.activeTrack();
-    const activeGroup = mediaType.getActiveGroup();
-    const previousActiveLoader = mediaType.activePlaylistLoader;
-    const lastTrack = mediaType.lastTrack_; // track did not change, do nothing
-
-    if (lastTrack && activeTrack && lastTrack.id === activeTrack.id) {
-      return;
-    }
-    mediaType.lastGroup_ = activeGroup;
-    mediaType.lastTrack_ = activeTrack;
-    stopLoaders(segmentLoader, mediaType);
-    if (!activeGroup) {
-      // there is no group active so we do not want to restart loaders
-      return;
-    }
-    if (activeGroup.isMainPlaylist) {
-      // track did not change, do nothing
-      if (!activeTrack || !lastTrack || activeTrack.id === lastTrack.id) {
-        return;
-      }
-      const pc = settings.vhs.playlistController_;
-      const newPlaylist = pc.selectPlaylist(); // media will not change do nothing
-
-      if (pc.media() === newPlaylist) {
-        return;
-      }
-      mediaType.logger_(`track change. Switching main audio from ${lastTrack.id} to ${activeTrack.id}`);
-      mainPlaylistLoader.pause();
-      mainSegmentLoader.resetEverything();
-      pc.fastQualityChange_(newPlaylist);
-      return;
-    }
-    if (type === 'AUDIO') {
-      if (!activeGroup.playlistLoader) {
-        // when switching from demuxed audio/video to muxed audio/video (noted by no
-        // playlist loader for the audio group), we want to do a destructive reset of the
-        // main segment loader and not restart the audio loaders
-        mainSegmentLoader.setAudio(true); // don't have to worry about disabling the audio of the audio segment loader since
-        // it should be stopped
-
-        mainSegmentLoader.resetEverything();
-        return;
-      } // although the segment loader is an audio segment loader, call the setAudio
-      // function to ensure it is prepared to re-append the init segment (or handle other
-      // config changes)
-
-      segmentLoader.setAudio(true);
-      mainSegmentLoader.setAudio(false);
-    }
-    if (previousActiveLoader === activeGroup.playlistLoader) {
-      // Nothing has actually changed. This can happen because track change events can fire
-      // multiple times for a "single" change. One for enabling the new active track, and
-      // one for disabling the track that was active
-      startLoaders(activeGroup.playlistLoader, mediaType);
-      return;
-    }
-    if (segmentLoader.track) {
-      // For WebVTT, set the new text track in the segmentloader
-      segmentLoader.track(activeTrack);
-    } // destructive reset
-
-    segmentLoader.resetEverything();
-    startLoaders(activeGroup.playlistLoader, mediaType);
-  };
-  const onError = {
-    /**
-     * Returns a function to be called when a SegmentLoader or PlaylistLoader encounters
-     * an error.
-     *
-     * @param {string} type
-     *        MediaGroup type
-     * @param {Object} settings
-     *        Object containing required information for media groups
-     * @return {Function}
-     *         Error handler. Logs warning (or error if the playlist is excluded) to
-     *         console and switches back to default audio track.
-     * @function onError.AUDIO
-     */
-    AUDIO: (type, settings) => () => {
-      const {
-        mediaTypes: {
-          [type]: mediaType
-        },
-        excludePlaylist
-      } = settings; // switch back to default audio track
-
-      const activeTrack = mediaType.activeTrack();
-      const activeGroup = mediaType.activeGroup();
-      const id = (activeGroup.filter(group => group.default)[0] || activeGroup[0]).id;
-      const defaultTrack = mediaType.tracks[id];
-      if (activeTrack === defaultTrack) {
-        // Default track encountered an error. All we can do now is exclude the current
-        // rendition and hope another will switch audio groups
-        excludePlaylist({
-          error: {
-            message: 'Problem encountered loading the default audio track.'
-          }
-        });
-        return;
-      }
-      videojs.log.warn('Problem encountered loading the alternate audio track.' + 'Switching back to default.');
-      for (const trackId in mediaType.tracks) {
-        mediaType.tracks[trackId].enabled = mediaType.tracks[trackId] === defaultTrack;
-      }
-      mediaType.onTrackChanged();
-    },
-    /**
-     * Returns a function to be called when a SegmentLoader or PlaylistLoader encounters
-     * an error.
-     *
-     * @param {string} type
-     *        MediaGroup type
-     * @param {Object} settings
-     *        Object containing required information for media groups
-     * @return {Function}
-     *         Error handler. Logs warning to console and disables the active subtitle track
-     * @function onError.SUBTITLES
-     */
-    SUBTITLES: (type, settings) => () => {
-      const {
-        mediaTypes: {
-          [type]: mediaType
-        }
-      } = settings;
-      videojs.log.warn('Problem encountered loading the subtitle track.' + 'Disabling subtitle track.');
-      const track = mediaType.activeTrack();
-      if (track) {
-        track.mode = 'disabled';
-      }
-      mediaType.onTrackChanged();
-    }
-  };
-  const setupListeners = {
-    /**
-     * Setup event listeners for audio playlist loader
-     *
-     * @param {string} type
-     *        MediaGroup type
-     * @param {PlaylistLoader|null} playlistLoader
-     *        PlaylistLoader to register listeners on
-     * @param {Object} settings
-     *        Object containing required information for media groups
-     * @function setupListeners.AUDIO
-     */
-    AUDIO: (type, playlistLoader, settings) => {
-      if (!playlistLoader) {
-        // no playlist loader means audio will be muxed with the video
-        return;
-      }
-      const {
-        tech,
-        requestOptions,
-        segmentLoaders: {
-          [type]: segmentLoader
-        }
-      } = settings;
-      playlistLoader.on('loadedmetadata', () => {
-        const media = playlistLoader.media();
-        segmentLoader.playlist(media, requestOptions); // if the video is already playing, or if this isn't a live video and preload
-        // permits, start downloading segments
-
-        if (!tech.paused() || media.endList && tech.preload() !== 'none') {
-          segmentLoader.load();
-        }
-      });
-      playlistLoader.on('loadedplaylist', () => {
-        segmentLoader.playlist(playlistLoader.media(), requestOptions); // If the player isn't paused, ensure that the segment loader is running
-
-        if (!tech.paused()) {
-          segmentLoader.load();
-        }
-      });
-      playlistLoader.on('error', onError[type](type, settings));
-    },
-    /**
-     * Setup event listeners for subtitle playlist loader
-     *
-     * @param {string} type
-     *        MediaGroup type
-     * @param {PlaylistLoader|null} playlistLoader
-     *        PlaylistLoader to register listeners on
-     * @param {Object} settings
-     *        Object containing required information for media groups
-     * @function setupListeners.SUBTITLES
-     */
-    SUBTITLES: (type, playlistLoader, settings) => {
-      const {
-        tech,
-        requestOptions,
-        segmentLoaders: {
-          [type]: segmentLoader
-        },
-        mediaTypes: {
-          [type]: mediaType
-        }
-      } = settings;
-      playlistLoader.on('loadedmetadata', () => {
-        const media = playlistLoader.media();
-        segmentLoader.playlist(media, requestOptions);
-        segmentLoader.track(mediaType.activeTrack()); // if the video is already playing, or if this isn't a live video and preload
-        // permits, start downloading segments
-
-        if (!tech.paused() || media.endList && tech.preload() !== 'none') {
-          segmentLoader.load();
-        }
-      });
-      playlistLoader.on('loadedplaylist', () => {
-        segmentLoader.playlist(playlistLoader.media(), requestOptions); // If the player isn't paused, ensure that the segment loader is running
-
-        if (!tech.paused()) {
-          segmentLoader.load();
-        }
-      });
-      playlistLoader.on('error', onError[type](type, settings));
-    }
-  };
-  const initialize = {
-    /**
-     * Setup PlaylistLoaders and AudioTracks for the audio groups
-     *
-     * @param {string} type
-     *        MediaGroup type
-     * @param {Object} settings
-     *        Object containing required information for media groups
-     * @function initialize.AUDIO
-     */
-    'AUDIO': (type, settings) => {
-      const {
-        vhs,
-        sourceType,
-        segmentLoaders: {
-          [type]: segmentLoader
-        },
-        requestOptions,
-        main: {
-          mediaGroups
-        },
-        mediaTypes: {
-          [type]: {
-            groups,
-            tracks,
-            logger_
-          }
-        },
-        mainPlaylistLoader
-      } = settings;
-      const audioOnlyMain = isAudioOnly(mainPlaylistLoader.main); // force a default if we have none
-
-      if (!mediaGroups[type] || Object.keys(mediaGroups[type]).length === 0) {
-        mediaGroups[type] = {
-          main: {
-            default: {
-              default: true
-            }
-          }
-        };
-        if (audioOnlyMain) {
-          mediaGroups[type].main.default.playlists = mainPlaylistLoader.main.playlists;
-        }
-      }
-      for (const groupId in mediaGroups[type]) {
-        if (!groups[groupId]) {
-          groups[groupId] = [];
-        }
-        for (const variantLabel in mediaGroups[type][groupId]) {
-          let properties = mediaGroups[type][groupId][variantLabel];
-          let playlistLoader;
-          if (audioOnlyMain) {
-            logger_(`AUDIO group '${groupId}' label '${variantLabel}' is a main playlist`);
-            properties.isMainPlaylist = true;
-            playlistLoader = null; // if vhs-json was provided as the source, and the media playlist was resolved,
-            // use the resolved media playlist object
-          } else if (sourceType === 'vhs-json' && properties.playlists) {
-            playlistLoader = new PlaylistLoader(properties.playlists[0], vhs, requestOptions);
-          } else if (properties.resolvedUri) {
-            playlistLoader = new PlaylistLoader(properties.resolvedUri, vhs, requestOptions); // TODO: dash isn't the only type with properties.playlists
-            // should we even have properties.playlists in this check.
-          } else if (properties.playlists && sourceType === 'dash') {
-            playlistLoader = new DashPlaylistLoader(properties.playlists[0], vhs, requestOptions, mainPlaylistLoader);
-          } else {
-            // no resolvedUri means the audio is muxed with the video when using this
-            // audio track
-            playlistLoader = null;
-          }
-          properties = merge({
-            id: variantLabel,
-            playlistLoader
-          }, properties);
-          setupListeners[type](type, properties.playlistLoader, settings);
-          groups[groupId].push(properties);
-          if (typeof tracks[variantLabel] === 'undefined') {
-            const track = new videojs.AudioTrack({
-              id: variantLabel,
-              kind: audioTrackKind_(properties),
-              enabled: false,
-              language: properties.language,
-              default: properties.default,
-              label: variantLabel
-            });
-            tracks[variantLabel] = track;
-          }
-        }
-      } // setup single error event handler for the segment loader
-
-      segmentLoader.on('error', onError[type](type, settings));
-    },
-    /**
-     * Setup PlaylistLoaders and TextTracks for the subtitle groups
-     *
-     * @param {string} type
-     *        MediaGroup type
-     * @param {Object} settings
-     *        Object containing required information for media groups
-     * @function initialize.SUBTITLES
-     */
-    'SUBTITLES': (type, settings) => {
-      const {
-        tech,
-        vhs,
-        sourceType,
-        segmentLoaders: {
-          [type]: segmentLoader
-        },
-        requestOptions,
-        main: {
-          mediaGroups
-        },
-        mediaTypes: {
-          [type]: {
-            groups,
-            tracks
-          }
-        },
-        mainPlaylistLoader
-      } = settings;
-      for (const groupId in mediaGroups[type]) {
-        if (!groups[groupId]) {
-          groups[groupId] = [];
-        }
-        for (const variantLabel in mediaGroups[type][groupId]) {
-          if (!vhs.options_.useForcedSubtitles && mediaGroups[type][groupId][variantLabel].forced) {
-            // Subtitle playlists with the forced attribute are not selectable in Safari.
-            // According to Apple's HLS Authoring Specification:
-            //   If content has forced subtitles and regular subtitles in a given language,
-            //   the regular subtitles track in that language MUST contain both the forced
-            //   subtitles and the regular subtitles for that language.
-            // Because of this requirement and that Safari does not add forced subtitles,
-            // forced subtitles are skipped here to maintain consistent experience across
-            // all platforms
-            continue;
-          }
-          let properties = mediaGroups[type][groupId][variantLabel];
-          let playlistLoader;
-          if (sourceType === 'hls') {
-            playlistLoader = new PlaylistLoader(properties.resolvedUri, vhs, requestOptions);
-          } else if (sourceType === 'dash') {
-            const playlists = properties.playlists.filter(p => p.excludeUntil !== Infinity);
-            if (!playlists.length) {
-              return;
-            }
-            playlistLoader = new DashPlaylistLoader(properties.playlists[0], vhs, requestOptions, mainPlaylistLoader);
-          } else if (sourceType === 'vhs-json') {
-            playlistLoader = new PlaylistLoader(
-            // if the vhs-json object included the media playlist, use the media playlist
-            // as provided, otherwise use the resolved URI to load the playlist
-            properties.playlists ? properties.playlists[0] : properties.resolvedUri, vhs, requestOptions);
-          }
-          properties = merge({
-            id: variantLabel,
-            playlistLoader
-          }, properties);
-          setupListeners[type](type, properties.playlistLoader, settings);
-          groups[groupId].push(properties);
-          if (typeof tracks[variantLabel] === 'undefined') {
-            const track = tech.addRemoteTextTrack({
-              id: variantLabel,
-              kind: 'subtitles',
-              default: properties.default && properties.autoselect,
-              language: properties.language,
-              label: variantLabel
-            }, false).track;
-            tracks[variantLabel] = track;
-          }
-        }
-      } // setup single error event handler for the segment loader
-
-      segmentLoader.on('error', onError[type](type, settings));
-    },
-    /**
-     * Setup TextTracks for the closed-caption groups
-     *
-     * @param {String} type
-     *        MediaGroup type
-     * @param {Object} settings
-     *        Object containing required information for media groups
-     * @function initialize['CLOSED-CAPTIONS']
-     */
-    'CLOSED-CAPTIONS': (type, settings) => {
-      const {
-        tech,
-        main: {
-          mediaGroups
-        },
-        mediaTypes: {
-          [type]: {
-            groups,
-            tracks
-          }
-        }
-      } = settings;
-      for (const groupId in mediaGroups[type]) {
-        if (!groups[groupId]) {
-          groups[groupId] = [];
-        }
-        for (const variantLabel in mediaGroups[type][groupId]) {
-          const properties = mediaGroups[type][groupId][variantLabel]; // Look for either 608 (CCn) or 708 (SERVICEn) caption services
-
-          if (!/^(?:CC|SERVICE)/.test(properties.instreamId)) {
-            continue;
-          }
-          const captionServices = tech.options_.vhs && tech.options_.vhs.captionServices || {};
-          let newProps = {
-            label: variantLabel,
-            language: properties.language,
-            instreamId: properties.instreamId,
-            default: properties.default && properties.autoselect
-          };
-          if (captionServices[newProps.instreamId]) {
-            newProps = merge(newProps, captionServices[newProps.instreamId]);
-          }
-          if (newProps.default === undefined) {
-            delete newProps.default;
-          } // No PlaylistLoader is required for Closed-Captions because the captions are
-          // embedded within the video stream
-
-          groups[groupId].push(merge({
-            id: variantLabel
-          }, properties));
-          if (typeof tracks[variantLabel] === 'undefined') {
-            const track = tech.addRemoteTextTrack({
-              id: newProps.instreamId,
-              kind: 'captions',
-              default: newProps.default,
-              language: newProps.language,
-              label: newProps.label
-            }, false).track;
-            tracks[variantLabel] = track;
-          }
-        }
-      }
-    }
-  };
-  const groupMatch = (list, media) => {
-    for (let i = 0; i < list.length; i++) {
-      if (playlistMatch(media, list[i])) {
-        return true;
-      }
-      if (list[i].playlists && groupMatch(list[i].playlists, media)) {
-        return true;
-      }
-    }
-    return false;
-  };
-  /**
-   * Returns a function used to get the active group of the provided type
-   *
-   * @param {string} type
-   *        MediaGroup type
-   * @param {Object} settings
-   *        Object containing required information for media groups
-   * @return {Function}
-   *         Function that returns the active media group for the provided type. Takes an
-   *         optional parameter {TextTrack} track. If no track is provided, a list of all
-   *         variants in the group, otherwise the variant corresponding to the provided
-   *         track is returned.
-   * @function activeGroup
-   */
-
-  const activeGroup = (type, settings) => track => {
-    const {
-      mainPlaylistLoader,
-      mediaTypes: {
-        [type]: {
-          groups
-        }
-      }
-    } = settings;
-    const media = mainPlaylistLoader.media();
-    if (!media) {
-      return null;
-    }
-    let variants = null; // set to variants to main media active group
-
-    if (media.attributes[type]) {
-      variants = groups[media.attributes[type]];
-    }
-    const groupKeys = Object.keys(groups);
-    if (!variants) {
-      // find the mainPlaylistLoader media
-      // that is in a media group if we are dealing
-      // with audio only
-      if (type === 'AUDIO' && groupKeys.length > 1 && isAudioOnly(settings.main)) {
-        for (let i = 0; i < groupKeys.length; i++) {
-          const groupPropertyList = groups[groupKeys[i]];
-          if (groupMatch(groupPropertyList, media)) {
-            variants = groupPropertyList;
-            break;
-          }
-        } // use the main group if it exists
-      } else if (groups.main) {
-        variants = groups.main; // only one group, use that one
-      } else if (groupKeys.length === 1) {
-        variants = groups[groupKeys[0]];
-      }
-    }
-    if (typeof track === 'undefined') {
-      return variants;
-    }
-    if (track === null || !variants) {
-      // An active track was specified so a corresponding group is expected. track === null
-      // means no track is currently active so there is no corresponding group
-      return null;
-    }
-    return variants.filter(props => props.id === track.id)[0] || null;
-  };
-  const activeTrack = {
-    /**
-     * Returns a function used to get the active track of type provided
-     *
-     * @param {string} type
-     *        MediaGroup type
-     * @param {Object} settings
-     *        Object containing required information for media groups
-     * @return {Function}
-     *         Function that returns the active media track for the provided type. Returns
-     *         null if no track is active
-     * @function activeTrack.AUDIO
-     */
-    AUDIO: (type, settings) => () => {
-      const {
-        mediaTypes: {
-          [type]: {
-            tracks
-          }
-        }
-      } = settings;
-      for (const id in tracks) {
-        if (tracks[id].enabled) {
-          return tracks[id];
-        }
-      }
-      return null;
-    },
-    /**
-     * Returns a function used to get the active track of type provided
-     *
-     * @param {string} type
-     *        MediaGroup type
-     * @param {Object} settings
-     *        Object containing required information for media groups
-     * @return {Function}
-     *         Function that returns the active media track for the provided type. Returns
-     *         null if no track is active
-     * @function activeTrack.SUBTITLES
-     */
-    SUBTITLES: (type, settings) => () => {
-      const {
-        mediaTypes: {
-          [type]: {
-            tracks
-          }
-        }
-      } = settings;
-      for (const id in tracks) {
-        if (tracks[id].mode === 'showing' || tracks[id].mode === 'hidden') {
-          return tracks[id];
-        }
-      }
-      return null;
-    }
-  };
-  const getActiveGroup = (type, {
-    mediaTypes
-  }) => () => {
-    const activeTrack_ = mediaTypes[type].activeTrack();
-    if (!activeTrack_) {
-      return null;
-    }
-    return mediaTypes[type].activeGroup(activeTrack_);
-  };
-  /**
-   * Setup PlaylistLoaders and Tracks for media groups (Audio, Subtitles,
-   * Closed-Captions) specified in the main manifest.
-   *
-   * @param {Object} settings
-   *        Object containing required information for setting up the media groups
-   * @param {Tech} settings.tech
-   *        The tech of the player
-   * @param {Object} settings.requestOptions
-   *        XHR request options used by the segment loaders
-   * @param {PlaylistLoader} settings.mainPlaylistLoader
-   *        PlaylistLoader for the main source
-   * @param {VhsHandler} settings.vhs
-   *        VHS SourceHandler
-   * @param {Object} settings.main
-   *        The parsed main manifest
-   * @param {Object} settings.mediaTypes
-   *        Object to store the loaders, tracks, and utility methods for each media type
-   * @param {Function} settings.excludePlaylist
-   *        Excludes the current rendition and forces a rendition switch.
-   * @function setupMediaGroups
-   */
-
-  const setupMediaGroups = settings => {
-    ['AUDIO', 'SUBTITLES', 'CLOSED-CAPTIONS'].forEach(type => {
-      initialize[type](type, settings);
-    });
-    const {
-      mediaTypes,
-      mainPlaylistLoader,
-      tech,
-      vhs,
-      segmentLoaders: {
-        ['AUDIO']: audioSegmentLoader,
-        main: mainSegmentLoader
-      }
-    } = settings; // setup active group and track getters and change event handlers
-
-    ['AUDIO', 'SUBTITLES'].forEach(type => {
-      mediaTypes[type].activeGroup = activeGroup(type, settings);
-      mediaTypes[type].activeTrack = activeTrack[type](type, settings);
-      mediaTypes[type].onGroupChanged = onGroupChanged(type, settings);
-      mediaTypes[type].onGroupChanging = onGroupChanging(type, settings);
-      mediaTypes[type].onTrackChanged = onTrackChanged(type, settings);
-      mediaTypes[type].getActiveGroup = getActiveGroup(type, settings);
-    }); // DO NOT enable the default subtitle or caption track.
-    // DO enable the default audio track
-
-    const audioGroup = mediaTypes.AUDIO.activeGroup();
-    if (audioGroup) {
-      const groupId = (audioGroup.filter(group => group.default)[0] || audioGroup[0]).id;
-      mediaTypes.AUDIO.tracks[groupId].enabled = true;
-      mediaTypes.AUDIO.onGroupChanged();
-      mediaTypes.AUDIO.onTrackChanged();
-      const activeAudioGroup = mediaTypes.AUDIO.getActiveGroup(); // a similar check for handling setAudio on each loader is run again each time the
-      // track is changed, but needs to be handled here since the track may not be considered
-      // changed on the first call to onTrackChanged
-
-      if (!activeAudioGroup.playlistLoader) {
-        // either audio is muxed with video or the stream is audio only
-        mainSegmentLoader.setAudio(true);
-      } else {
-        // audio is demuxed
-        mainSegmentLoader.setAudio(false);
-        audioSegmentLoader.setAudio(true);
-      }
-    }
-    mainPlaylistLoader.on('mediachange', () => {
-      ['AUDIO', 'SUBTITLES'].forEach(type => mediaTypes[type].onGroupChanged());
-    });
-    mainPlaylistLoader.on('mediachanging', () => {
-      ['AUDIO', 'SUBTITLES'].forEach(type => mediaTypes[type].onGroupChanging());
-    }); // custom audio track change event handler for usage event
-
-    const onAudioTrackChanged = () => {
-      mediaTypes.AUDIO.onTrackChanged();
-      tech.trigger({
-        type: 'usage',
-        name: 'vhs-audio-change'
-      });
-    };
-    tech.audioTracks().addEventListener('change', onAudioTrackChanged);
-    tech.remoteTextTracks().addEventListener('change', mediaTypes.SUBTITLES.onTrackChanged);
-    vhs.on('dispose', () => {
-      tech.audioTracks().removeEventListener('change', onAudioTrackChanged);
-      tech.remoteTextTracks().removeEventListener('change', mediaTypes.SUBTITLES.onTrackChanged);
-    }); // clear existing audio tracks and add the ones we just created
-
-    tech.clearTracks('audio');
-    for (const id in mediaTypes.AUDIO.tracks) {
-      tech.audioTracks().addTrack(mediaTypes.AUDIO.tracks[id]);
-    }
-  };
-  /**
-   * Creates skeleton object used to store the loaders, tracks, and utility methods for each
-   * media type
-   *
-   * @return {Object}
-   *         Object to store the loaders, tracks, and utility methods for each media type
-   * @function createMediaTypes
-   */
-
-  const createMediaTypes = () => {
-    const mediaTypes = {};
-    ['AUDIO', 'SUBTITLES', 'CLOSED-CAPTIONS'].forEach(type => {
-      mediaTypes[type] = {
-        groups: {},
-        tracks: {},
-        activePlaylistLoader: null,
-        activeGroup: noop,
-        activeTrack: noop,
-        getActiveGroup: noop,
-        onGroupChanged: noop,
-        onTrackChanged: noop,
-        lastTrack_: null,
-        logger_: logger(`MediaGroups[${type}]`)
-      };
-    });
-    return mediaTypes;
-  };
-
-  /**
-   * A utility class for setting properties and maintaining the state of the content steering manifest.
-   *
-   * Content Steering manifest format:
-   * VERSION: number (required) currently only version 1 is supported.
-   * TTL: number in seconds (optional) until the next content steering manifest reload.
-   * RELOAD-URI: string (optional) uri to fetch the next content steering manifest.
-   * SERVICE-LOCATION-PRIORITY or PATHWAY-PRIORITY a non empty array of unique string values.
-   * PATHWAY-CLONES: array (optional) (HLS only) pathway clone objects to copy from other playlists.
-   */
-
-  class SteeringManifest {
-    constructor() {
-      this.priority_ = [];
-      this.pathwayClones_ = new Map();
-    }
-    set version(number) {
-      // Only version 1 is currently supported for both DASH and HLS.
-      if (number === 1) {
-        this.version_ = number;
-      }
-    }
-    set ttl(seconds) {
-      // TTL = time-to-live, default = 300 seconds.
-      this.ttl_ = seconds || 300;
-    }
-    set reloadUri(uri) {
-      if (uri) {
-        // reload URI can be relative to the previous reloadUri.
-        this.reloadUri_ = resolveUrl(this.reloadUri_, uri);
-      }
-    }
-    set priority(array) {
-      // priority must be non-empty and unique values.
-      if (array && array.length) {
-        this.priority_ = array;
-      }
-    }
-    set pathwayClones(array) {
-      // pathwayClones must be non-empty.
-      if (array && array.length) {
-        this.pathwayClones_ = new Map(array.map(clone => [clone.ID, clone]));
-      }
-    }
-    get version() {
-      return this.version_;
-    }
-    get ttl() {
-      return this.ttl_;
-    }
-    get reloadUri() {
-      return this.reloadUri_;
-    }
-    get priority() {
-      return this.priority_;
-    }
-    get pathwayClones() {
-      return this.pathwayClones_;
-    }
-  }
-  /**
-   * This class represents a content steering manifest and associated state. See both HLS and DASH specifications.
-   * HLS: https://developer.apple.com/streaming/HLSContentSteeringSpecification.pdf and
-   * https://datatracker.ietf.org/doc/draft-pantos-hls-rfc8216bis/ section 4.4.6.6.
-   * DASH: https://dashif.org/docs/DASH-IF-CTS-00XX-Content-Steering-Community-Review.pdf
-   *
-   * @param {function} xhr for making a network request from the browser.
-   * @param {function} bandwidth for fetching the current bandwidth from the main segment loader.
-   */
-
-  class ContentSteeringController extends videojs.EventTarget {
-    constructor(xhr, bandwidth) {
-      super();
-      this.currentPathway = null;
-      this.defaultPathway = null;
-      this.queryBeforeStart = false;
-      this.availablePathways_ = new Set();
-      this.steeringManifest = new SteeringManifest();
-      this.proxyServerUrl_ = null;
-      this.manifestType_ = null;
-      this.ttlTimeout_ = null;
-      this.request_ = null;
-      this.currentPathwayClones = new Map();
-      this.nextPathwayClones = new Map();
-      this.excludedSteeringManifestURLs = new Set();
-      this.logger_ = logger('Content Steering');
-      this.xhr_ = xhr;
-      this.getBandwidth_ = bandwidth;
-    }
-    /**
-     * Assigns the content steering tag properties to the steering controller
-     *
-     * @param {string} baseUrl the baseURL from the main manifest for resolving the steering manifest url
-     * @param {Object} steeringTag the content steering tag from the main manifest
-     */
-
-    assignTagProperties(baseUrl, steeringTag) {
-      this.manifestType_ = steeringTag.serverUri ? 'HLS' : 'DASH'; // serverUri is HLS serverURL is DASH
-
-      const steeringUri = steeringTag.serverUri || steeringTag.serverURL;
-      if (!steeringUri) {
-        this.logger_(`steering manifest URL is ${steeringUri}, cannot request steering manifest.`);
-        this.trigger('error');
-        return;
-      } // Content steering manifests can be encoded as a data URI. We can decode, parse and return early if that's the case.
-
-      if (steeringUri.startsWith('data:')) {
-        this.decodeDataUriManifest_(steeringUri.substring(steeringUri.indexOf(',') + 1));
-        return;
-      } // reloadUri is the resolution of the main manifest URL and steering URL.
-
-      this.steeringManifest.reloadUri = resolveUrl(baseUrl, steeringUri); // pathwayId is HLS defaultServiceLocation is DASH
-
-      this.defaultPathway = steeringTag.pathwayId || steeringTag.defaultServiceLocation; // currently only DASH supports the following properties on <ContentSteering> tags.
-
-      this.queryBeforeStart = steeringTag.queryBeforeStart;
-      this.proxyServerUrl_ = steeringTag.proxyServerURL; // trigger a steering event if we have a pathway from the content steering tag.
-      // this tells VHS which segment pathway to start with.
-      // If queryBeforeStart is true we need to wait for the steering manifest response.
-
-      if (this.defaultPathway && !this.queryBeforeStart) {
-        this.trigger('content-steering');
-      }
-    }
-    /**
-     * Requests the content steering manifest and parse the response. This should only be called after
-     * assignTagProperties was called with a content steering tag.
-     *
-     * @param {string} initialUri The optional uri to make the request with.
-     *    If set, the request should be made with exactly what is passed in this variable.
-     *    This scenario should only happen once on initalization.
-     */
-
-    requestSteeringManifest(initial) {
-      const reloadUri = this.steeringManifest.reloadUri;
-      if (!reloadUri) {
-        return;
-      } // We currently don't support passing MPD query parameters directly to the content steering URL as this requires
-      // ExtUrlQueryInfo tag support. See the DASH content steering spec section 8.1.
-      // This request URI accounts for manifest URIs that have been excluded.
-
-      const uri = initial ? reloadUri : this.getRequestURI(reloadUri); // If there are no valid manifest URIs, we should stop content steering.
-
-      if (!uri) {
-        this.logger_('No valid content steering manifest URIs. Stopping content steering.');
-        this.trigger('error');
-        this.dispose();
-        return;
-      }
-      this.request_ = this.xhr_({
-        uri,
-        requestType: 'content-steering-manifest'
-      }, (error, errorInfo) => {
-        if (error) {
-          // If the client receives HTTP 410 Gone in response to a manifest request,
-          // it MUST NOT issue another request for that URI for the remainder of the
-          // playback session. It MAY continue to use the most-recently obtained set
-          // of Pathways.
-          if (errorInfo.status === 410) {
-            this.logger_(`manifest request 410 ${error}.`);
-            this.logger_(`There will be no more content steering requests to ${uri} this session.`);
-            this.excludedSteeringManifestURLs.add(uri);
-            return;
-          } // If the client receives HTTP 429 Too Many Requests with a Retry-After
-          // header in response to a manifest request, it SHOULD wait until the time
-          // specified by the Retry-After header to reissue the request.
-
-          if (errorInfo.status === 429) {
-            const retrySeconds = errorInfo.responseHeaders['retry-after'];
-            this.logger_(`manifest request 429 ${error}.`);
-            this.logger_(`content steering will retry in ${retrySeconds} seconds.`);
-            this.startTTLTimeout_(parseInt(retrySeconds, 10));
-            return;
-          } // If the Steering Manifest cannot be loaded and parsed correctly, the
-          // client SHOULD continue to use the previous values and attempt to reload
-          // it after waiting for the previously-specified TTL (or 5 minutes if
-          // none).
-
-          this.logger_(`manifest failed to load ${error}.`);
-          this.startTTLTimeout_();
-          return;
-        }
-        const steeringManifestJson = JSON.parse(this.request_.responseText);
-        this.assignSteeringProperties_(steeringManifestJson);
-        this.startTTLTimeout_();
-      });
-    }
-    /**
-     * Set the proxy server URL and add the steering manifest url as a URI encoded parameter.
-     *
-     * @param {string} steeringUrl the steering manifest url
-     * @return the steering manifest url to a proxy server with all parameters set
-     */
-
-    setProxyServerUrl_(steeringUrl) {
-      const steeringUrlObject = new window.URL(steeringUrl);
-      const proxyServerUrlObject = new window.URL(this.proxyServerUrl_);
-      proxyServerUrlObject.searchParams.set('url', encodeURI(steeringUrlObject.toString()));
-      return this.setSteeringParams_(proxyServerUrlObject.toString());
-    }
-    /**
-     * Decodes and parses the data uri encoded steering manifest
-     *
-     * @param {string} dataUri the data uri to be decoded and parsed.
-     */
-
-    decodeDataUriManifest_(dataUri) {
-      const steeringManifestJson = JSON.parse(window.atob(dataUri));
-      this.assignSteeringProperties_(steeringManifestJson);
-    }
-    /**
-     * Set the HLS or DASH content steering manifest request query parameters. For example:
-     * _HLS_pathway="<CURRENT-PATHWAY-ID>" and _HLS_throughput=<THROUGHPUT>
-     * _DASH_pathway and _DASH_throughput
-     *
-     * @param {string} uri to add content steering server parameters to.
-     * @return a new uri as a string with the added steering query parameters.
-     */
-
-    setSteeringParams_(url) {
-      const urlObject = new window.URL(url);
-      const path = this.getPathway();
-      const networkThroughput = this.getBandwidth_();
-      if (path) {
-        const pathwayKey = `_${this.manifestType_}_pathway`;
-        urlObject.searchParams.set(pathwayKey, path);
-      }
-      if (networkThroughput) {
-        const throughputKey = `_${this.manifestType_}_throughput`;
-        urlObject.searchParams.set(throughputKey, networkThroughput);
-      }
-      return urlObject.toString();
-    }
-    /**
-     * Assigns the current steering manifest properties and to the SteeringManifest object
-     *
-     * @param {Object} steeringJson the raw JSON steering manifest
-     */
-
-    assignSteeringProperties_(steeringJson) {
-      this.steeringManifest.version = steeringJson.VERSION;
-      if (!this.steeringManifest.version) {
-        this.logger_(`manifest version is ${steeringJson.VERSION}, which is not supported.`);
-        this.trigger('error');
-        return;
-      }
-      this.steeringManifest.ttl = steeringJson.TTL;
-      this.steeringManifest.reloadUri = steeringJson['RELOAD-URI']; // HLS = PATHWAY-PRIORITY required. DASH = SERVICE-LOCATION-PRIORITY optional
-
-      this.steeringManifest.priority = steeringJson['PATHWAY-PRIORITY'] || steeringJson['SERVICE-LOCATION-PRIORITY']; // Pathway clones to be created/updated in HLS.
-      // See section 7.2 https://datatracker.ietf.org/doc/draft-pantos-hls-rfc8216bis/
-
-      this.steeringManifest.pathwayClones = steeringJson['PATHWAY-CLONES'];
-      this.nextPathwayClones = this.steeringManifest.pathwayClones; // 1. apply first pathway from the array.
-      // 2. if first pathway doesn't exist in manifest, try next pathway.
-      //    a. if all pathways are exhausted, ignore the steering manifest priority.
-      // 3. if segments fail from an established pathway, try all variants/renditions, then exclude the failed pathway.
-      //    a. exclude a pathway for a minimum of the last TTL duration. Meaning, from the next steering response,
-      //       the excluded pathway will be ignored.
-      //       See excludePathway usage in excludePlaylist().
-      // If there are no available pathways, we need to stop content steering.
-
-      if (!this.availablePathways_.size) {
-        this.logger_('There are no available pathways for content steering. Ending content steering.');
-        this.trigger('error');
-        this.dispose();
-      }
-      const chooseNextPathway = pathwaysByPriority => {
-        for (const path of pathwaysByPriority) {
-          if (this.availablePathways_.has(path)) {
-            return path;
-          }
-        } // If no pathway matches, ignore the manifest and choose the first available.
-
-        return [...this.availablePathways_][0];
-      };
-      const nextPathway = chooseNextPathway(this.steeringManifest.priority);
-      if (this.currentPathway !== nextPathway) {
-        this.currentPathway = nextPathway;
-        this.trigger('content-steering');
-      }
-    }
-    /**
-     * Returns the pathway to use for steering decisions
-     *
-     * @return {string} returns the current pathway or the default
-     */
-
-    getPathway() {
-      return this.currentPathway || this.defaultPathway;
-    }
-    /**
-     * Chooses the manifest request URI based on proxy URIs and server URLs.
-     * Also accounts for exclusion on certain manifest URIs.
-     *
-     * @param {string} reloadUri the base uri before parameters
-     *
-     * @return {string} the final URI for the request to the manifest server.
-     */
-
-    getRequestURI(reloadUri) {
-      if (!reloadUri) {
-        return null;
-      }
-      const isExcluded = uri => this.excludedSteeringManifestURLs.has(uri);
-      if (this.proxyServerUrl_) {
-        const proxyURI = this.setProxyServerUrl_(reloadUri);
-        if (!isExcluded(proxyURI)) {
-          return proxyURI;
-        }
-      }
-      const steeringURI = this.setSteeringParams_(reloadUri);
-      if (!isExcluded(steeringURI)) {
-        return steeringURI;
-      } // Return nothing if all valid manifest URIs are excluded.
-
-      return null;
-    }
-    /**
-     * Start the timeout for re-requesting the steering manifest at the TTL interval.
-     *
-     * @param {number} ttl time in seconds of the timeout. Defaults to the
-     *        ttl interval in the steering manifest
-     */
-
-    startTTLTimeout_(ttl = this.steeringManifest.ttl) {
-      // 300 (5 minutes) is the default value.
-      const ttlMS = ttl * 1000;
-      this.ttlTimeout_ = window.setTimeout(() => {
-        this.requestSteeringManifest();
-      }, ttlMS);
-    }
-    /**
-     * Clear the TTL timeout if necessary.
-     */
-
-    clearTTLTimeout_() {
-      window.clearTimeout(this.ttlTimeout_);
-      this.ttlTimeout_ = null;
-    }
-    /**
-     * aborts any current steering xhr and sets the current request object to null
-     */
-
-    abort() {
-      if (this.request_) {
-        this.request_.abort();
-      }
-      this.request_ = null;
-    }
-    /**
-     * aborts steering requests clears the ttl timeout and resets all properties.
-     */
-
-    dispose() {
-      this.off('content-steering');
-      this.off('error');
-      this.abort();
-      this.clearTTLTimeout_();
-      this.currentPathway = null;
-      this.defaultPathway = null;
-      this.queryBeforeStart = null;
-      this.proxyServerUrl_ = null;
-      this.manifestType_ = null;
-      this.ttlTimeout_ = null;
-      this.request_ = null;
-      this.excludedSteeringManifestURLs = new Set();
-      this.availablePathways_ = new Set();
-      this.steeringManifest = new SteeringManifest();
-    }
-    /**
-     * adds a pathway to the available pathways set
-     *
-     * @param {string} pathway the pathway string to add
-     */
-
-    addAvailablePathway(pathway) {
-      if (pathway) {
-        this.availablePathways_.add(pathway);
-      }
-    }
-    /**
-     * Clears all pathways from the available pathways set
-     */
-
-    clearAvailablePathways() {
-      this.availablePathways_.clear();
-    }
-    /**
-     * Removes a pathway from the available pathways set.
-     */
-
-    excludePathway(pathway) {
-      return this.availablePathways_.delete(pathway);
-    }
-    /**
-     * Checks the refreshed DASH manifest content steering tag for changes.
-     *
-     * @param {string} baseURL new steering tag on DASH manifest refresh
-     * @param {Object} newTag the new tag to check for changes
-     * @return a true or false whether the new tag has different values
-     */
-
-    didDASHTagChange(baseURL, newTag) {
-      return !newTag && this.steeringManifest.reloadUri || newTag && (resolveUrl(baseURL, newTag.serverURL) !== this.steeringManifest.reloadUri || newTag.defaultServiceLocation !== this.defaultPathway || newTag.queryBeforeStart !== this.queryBeforeStart || newTag.proxyServerURL !== this.proxyServerUrl_);
-    }
-    getAvailablePathways() {
-      return this.availablePathways_;
-    }
-  }
-
-  /**
-   * @file playlist-controller.js
-   */
-  const ABORT_EARLY_EXCLUSION_SECONDS = 10;
-  let Vhs$1; // SegmentLoader stats that need to have each loader's
-  // values summed to calculate the final value
-
-  const loaderStats = ['mediaRequests', 'mediaRequestsAborted', 'mediaRequestsTimedout', 'mediaRequestsErrored', 'mediaTransferDuration', 'mediaBytesTransferred', 'mediaAppends'];
-  const sumLoaderStat = function (stat) {
-    return this.audioSegmentLoader_[stat] + this.mainSegmentLoader_[stat];
-  };
-  const shouldSwitchToMedia = function ({
-    currentPlaylist,
-    buffered,
-    currentTime,
-    nextPlaylist,
-    bufferLowWaterLine,
-    bufferHighWaterLine,
-    duration,
-    bufferBasedABR,
-    log
-  }) {
-    // we have no other playlist to switch to
-    if (!nextPlaylist) {
-      videojs.log.warn('We received no playlist to switch to. Please check your stream.');
-      return false;
-    }
-    const sharedLogLine = `allowing switch ${currentPlaylist && currentPlaylist.id || 'null'} -> ${nextPlaylist.id}`;
-    if (!currentPlaylist) {
-      log(`${sharedLogLine} as current playlist is not set`);
-      return true;
-    } // no need to switch if playlist is the same
-
-    if (nextPlaylist.id === currentPlaylist.id) {
-      return false;
-    } // determine if current time is in a buffered range.
-
-    const isBuffered = Boolean(findRange(buffered, currentTime).length); // If the playlist is live, then we want to not take low water line into account.
-    // This is because in LIVE, the player plays 3 segments from the end of the
-    // playlist, and if `BUFFER_LOW_WATER_LINE` is greater than the duration availble
-    // in those segments, a viewer will never experience a rendition upswitch.
-
-    if (!currentPlaylist.endList) {
-      // For LLHLS live streams, don't switch renditions before playback has started, as it almost
-      // doubles the time to first playback.
-      if (!isBuffered && typeof currentPlaylist.partTargetDuration === 'number') {
-        log(`not ${sharedLogLine} as current playlist is live llhls, but currentTime isn't in buffered.`);
-        return false;
-      }
-      log(`${sharedLogLine} as current playlist is live`);
-      return true;
-    }
-    const forwardBuffer = timeAheadOf(buffered, currentTime);
-    const maxBufferLowWaterLine = bufferBasedABR ? Config.EXPERIMENTAL_MAX_BUFFER_LOW_WATER_LINE : Config.MAX_BUFFER_LOW_WATER_LINE; // For the same reason as LIVE, we ignore the low water line when the VOD
-    // duration is below the max potential low water line
-
-    if (duration < maxBufferLowWaterLine) {
-      log(`${sharedLogLine} as duration < max low water line (${duration} < ${maxBufferLowWaterLine})`);
-      return true;
-    }
-    const nextBandwidth = nextPlaylist.attributes.BANDWIDTH;
-    const currBandwidth = currentPlaylist.attributes.BANDWIDTH; // when switching down, if our buffer is lower than the high water line,
-    // we can switch down
-
-    if (nextBandwidth < currBandwidth && (!bufferBasedABR || forwardBuffer < bufferHighWaterLine)) {
-      let logLine = `${sharedLogLine} as next bandwidth < current bandwidth (${nextBandwidth} < ${currBandwidth})`;
-      if (bufferBasedABR) {
-        logLine += ` and forwardBuffer < bufferHighWaterLine (${forwardBuffer} < ${bufferHighWaterLine})`;
-      }
-      log(logLine);
-      return true;
-    } // and if our buffer is higher than the low water line,
-    // we can switch up
-
-    if ((!bufferBasedABR || nextBandwidth > currBandwidth) && forwardBuffer >= bufferLowWaterLine) {
-      let logLine = `${sharedLogLine} as forwardBuffer >= bufferLowWaterLine (${forwardBuffer} >= ${bufferLowWaterLine})`;
-      if (bufferBasedABR) {
-        logLine += ` and next bandwidth > current bandwidth (${nextBandwidth} > ${currBandwidth})`;
-      }
-      log(logLine);
-      return true;
-    }
-    log(`not ${sharedLogLine} as no switching criteria met`);
-    return false;
-  };
-  /**
-   * the main playlist controller controller all interactons
-   * between playlists and segmentloaders. At this time this mainly
-   * involves a main playlist and a series of audio playlists
-   * if they are available
-   *
-   * @class PlaylistController
-   * @extends videojs.EventTarget
-   */
-
-  class PlaylistController extends videojs.EventTarget {
-    constructor(options) {
-      super();
-      const {
-        src,
-        withCredentials,
-        tech,
-        bandwidth,
-        externVhs,
-        useCueTags,
-        playlistExclusionDuration,
-        enableLowInitialPlaylist,
-        sourceType,
-        cacheEncryptionKeys,
-        bufferBasedABR,
-        leastPixelDiffSelector,
-        captionServices
-      } = options;
-      if (!src) {
-        throw new Error('A non-empty playlist URL or JSON manifest string is required');
-      }
-      let {
-        maxPlaylistRetries
-      } = options;
-      if (maxPlaylistRetries === null || typeof maxPlaylistRetries === 'undefined') {
-        maxPlaylistRetries = Infinity;
-      }
-      Vhs$1 = externVhs;
-      this.bufferBasedABR = Boolean(bufferBasedABR);
-      this.leastPixelDiffSelector = Boolean(leastPixelDiffSelector);
-      this.withCredentials = withCredentials;
-      this.tech_ = tech;
-      this.vhs_ = tech.vhs;
-      this.sourceType_ = sourceType;
-      this.useCueTags_ = useCueTags;
-      this.playlistExclusionDuration = playlistExclusionDuration;
-      this.maxPlaylistRetries = maxPlaylistRetries;
-      this.enableLowInitialPlaylist = enableLowInitialPlaylist;
-      if (this.useCueTags_) {
-        this.cueTagsTrack_ = this.tech_.addTextTrack('metadata', 'ad-cues');
-        this.cueTagsTrack_.inBandMetadataTrackDispatchType = '';
-      }
-      this.requestOptions_ = {
-        withCredentials,
-        maxPlaylistRetries,
-        timeout: null
-      };
-      this.on('error', this.pauseLoading);
-      this.mediaTypes_ = createMediaTypes();
-      this.mediaSource = new window.MediaSource();
-      this.handleDurationChange_ = this.handleDurationChange_.bind(this);
-      this.handleSourceOpen_ = this.handleSourceOpen_.bind(this);
-      this.handleSourceEnded_ = this.handleSourceEnded_.bind(this);
-      this.mediaSource.addEventListener('durationchange', this.handleDurationChange_); // load the media source into the player
-
-      this.mediaSource.addEventListener('sourceopen', this.handleSourceOpen_);
-      this.mediaSource.addEventListener('sourceended', this.handleSourceEnded_); // we don't have to handle sourceclose since dispose will handle termination of
-      // everything, and the MediaSource should not be detached without a proper disposal
-
-      this.seekable_ = createTimeRanges();
-      this.hasPlayed_ = false;
-      this.syncController_ = new SyncController(options);
-      this.segmentMetadataTrack_ = tech.addRemoteTextTrack({
-        kind: 'metadata',
-        label: 'segment-metadata'
-      }, false).track;
-      this.decrypter_ = new Decrypter();
-      this.sourceUpdater_ = new SourceUpdater(this.mediaSource);
-      this.inbandTextTracks_ = {};
-      this.timelineChangeController_ = new TimelineChangeController();
-      this.keyStatusMap_ = new Map();
-      const segmentLoaderSettings = {
-        vhs: this.vhs_,
-        parse708captions: options.parse708captions,
-        useDtsForTimestampOffset: options.useDtsForTimestampOffset,
-        captionServices,
-        mediaSource: this.mediaSource,
-        currentTime: this.tech_.currentTime.bind(this.tech_),
-        seekable: () => this.seekable(),
-        seeking: () => this.tech_.seeking(),
-        duration: () => this.duration(),
-        hasPlayed: () => this.hasPlayed_,
-        goalBufferLength: () => this.goalBufferLength(),
-        bandwidth,
-        syncController: this.syncController_,
-        decrypter: this.decrypter_,
-        sourceType: this.sourceType_,
-        inbandTextTracks: this.inbandTextTracks_,
-        cacheEncryptionKeys,
-        sourceUpdater: this.sourceUpdater_,
-        timelineChangeController: this.timelineChangeController_,
-        exactManifestTimings: options.exactManifestTimings,
-        addMetadataToTextTrack: this.addMetadataToTextTrack.bind(this)
-      }; // The source type check not only determines whether a special DASH playlist loader
-      // should be used, but also covers the case where the provided src is a vhs-json
-      // manifest object (instead of a URL). In the case of vhs-json, the default
-      // PlaylistLoader should be used.
-
-      this.mainPlaylistLoader_ = this.sourceType_ === 'dash' ? new DashPlaylistLoader(src, this.vhs_, merge(this.requestOptions_, {
-        addMetadataToTextTrack: this.addMetadataToTextTrack.bind(this)
-      })) : new PlaylistLoader(src, this.vhs_, merge(this.requestOptions_, {
-        addDateRangesToTextTrack: this.addDateRangesToTextTrack_.bind(this)
-      }));
-      this.setupMainPlaylistLoaderListeners_(); // setup segment loaders
-      // combined audio/video or just video when alternate audio track is selected
-
-      this.mainSegmentLoader_ = new SegmentLoader(merge(segmentLoaderSettings, {
-        segmentMetadataTrack: this.segmentMetadataTrack_,
-        loaderType: 'main'
-      }), options); // alternate audio track
-
-      this.audioSegmentLoader_ = new SegmentLoader(merge(segmentLoaderSettings, {
-        loaderType: 'audio'
-      }), options);
-      this.subtitleSegmentLoader_ = new VTTSegmentLoader(merge(segmentLoaderSettings, {
-        loaderType: 'vtt',
-        featuresNativeTextTracks: this.tech_.featuresNativeTextTracks,
-        loadVttJs: () => new Promise((resolve, reject) => {
-          function onLoad() {
-            tech.off('vttjserror', onError);
-            resolve();
-          }
-          function onError() {
-            tech.off('vttjsloaded', onLoad);
-            reject();
-          }
-          tech.one('vttjsloaded', onLoad);
-          tech.one('vttjserror', onError); // safe to call multiple times, script will be loaded only once:
-
-          tech.addWebVttScript_();
-        })
-      }), options);
-      const getBandwidth = () => {
-        return this.mainSegmentLoader_.bandwidth;
-      };
-      this.contentSteeringController_ = new ContentSteeringController(this.vhs_.xhr, getBandwidth);
-      this.setupSegmentLoaderListeners_();
-      if (this.bufferBasedABR) {
-        this.mainPlaylistLoader_.one('loadedplaylist', () => this.startABRTimer_());
-        this.tech_.on('pause', () => this.stopABRTimer_());
-        this.tech_.on('play', () => this.startABRTimer_());
-      } // Create SegmentLoader stat-getters
-      // mediaRequests_
-      // mediaRequestsAborted_
-      // mediaRequestsTimedout_
-      // mediaRequestsErrored_
-      // mediaTransferDuration_
-      // mediaBytesTransferred_
-      // mediaAppends_
-
-      loaderStats.forEach(stat => {
-        this[stat + '_'] = sumLoaderStat.bind(this, stat);
-      });
-      this.logger_ = logger('pc');
-      this.triggeredFmp4Usage = false;
-      if (this.tech_.preload() === 'none') {
-        this.loadOnPlay_ = () => {
-          this.loadOnPlay_ = null;
-          this.mainPlaylistLoader_.load();
-        };
-        this.tech_.one('play', this.loadOnPlay_);
-      } else {
-        this.mainPlaylistLoader_.load();
-      }
-      this.timeToLoadedData__ = -1;
-      this.mainAppendsToLoadedData__ = -1;
-      this.audioAppendsToLoadedData__ = -1;
-      const event = this.tech_.preload() === 'none' ? 'play' : 'loadstart'; // start the first frame timer on loadstart or play (for preload none)
-
-      this.tech_.one(event, () => {
-        const timeToLoadedDataStart = Date.now();
-        this.tech_.one('loadeddata', () => {
-          this.timeToLoadedData__ = Date.now() - timeToLoadedDataStart;
-          this.mainAppendsToLoadedData__ = this.mainSegmentLoader_.mediaAppends;
-          this.audioAppendsToLoadedData__ = this.audioSegmentLoader_.mediaAppends;
-        });
-      });
-    }
-    mainAppendsToLoadedData_() {
-      return this.mainAppendsToLoadedData__;
-    }
-    audioAppendsToLoadedData_() {
-      return this.audioAppendsToLoadedData__;
-    }
-    appendsToLoadedData_() {
-      const main = this.mainAppendsToLoadedData_();
-      const audio = this.audioAppendsToLoadedData_();
-      if (main === -1 || audio === -1) {
-        return -1;
-      }
-      return main + audio;
-    }
-    timeToLoadedData_() {
-      return this.timeToLoadedData__;
-    }
-    /**
-     * Run selectPlaylist and switch to the new playlist if we should
-     *
-     * @param {string} [reason=abr] a reason for why the ABR check is made
-     * @private
-     */
-
-    checkABR_(reason = 'abr') {
-      const nextPlaylist = this.selectPlaylist();
-      if (nextPlaylist && this.shouldSwitchToMedia_(nextPlaylist)) {
-        this.switchMedia_(nextPlaylist, reason);
-      }
-    }
-    switchMedia_(playlist, cause, delay) {
-      const oldMedia = this.media();
-      const oldId = oldMedia && (oldMedia.id || oldMedia.uri);
-      const newId = playlist && (playlist.id || playlist.uri);
-      if (oldId && oldId !== newId) {
-        this.logger_(`switch media ${oldId} -> ${newId} from ${cause}`);
-        this.tech_.trigger({
-          type: 'usage',
-          name: `vhs-rendition-change-${cause}`
-        });
-      }
-      this.mainPlaylistLoader_.media(playlist, delay);
-    }
-    /**
-     * A function that ensures we switch our playlists inside of `mediaTypes`
-     * to match the current `serviceLocation` provided by the contentSteering controller.
-     * We want to check media types of `AUDIO`, `SUBTITLES`, and `CLOSED-CAPTIONS`.
-     *
-     * This should only be called on a DASH playback scenario while using content steering.
-     * This is necessary due to differences in how media in HLS manifests are generally tied to
-     * a video playlist, where in DASH that is not always the case.
-     */
-
-    switchMediaForDASHContentSteering_() {
-      ['AUDIO', 'SUBTITLES', 'CLOSED-CAPTIONS'].forEach(type => {
-        const mediaType = this.mediaTypes_[type];
-        const activeGroup = mediaType ? mediaType.activeGroup() : null;
-        const pathway = this.contentSteeringController_.getPathway();
-        if (activeGroup && pathway) {
-          // activeGroup can be an array or a single group
-          const mediaPlaylists = activeGroup.length ? activeGroup[0].playlists : activeGroup.playlists;
-          const dashMediaPlaylists = mediaPlaylists.filter(p => p.attributes.serviceLocation === pathway); // Switch the current active playlist to the correct CDN
-
-          if (dashMediaPlaylists.length) {
-            this.mediaTypes_[type].activePlaylistLoader.media(dashMediaPlaylists[0]);
-          }
-        }
-      });
-    }
-    /**
-     * Start a timer that periodically calls checkABR_
-     *
-     * @private
-     */
-
-    startABRTimer_() {
-      this.stopABRTimer_();
-      this.abrTimer_ = window.setInterval(() => this.checkABR_(), 250);
-    }
-    /**
-     * Stop the timer that periodically calls checkABR_
-     *
-     * @private
-     */
-
-    stopABRTimer_() {
-      // if we're scrubbing, we don't need to pause.
-      // This getter will be added to Video.js in version 7.11.
-      if (this.tech_.scrubbing && this.tech_.scrubbing()) {
-        return;
-      }
-      window.clearInterval(this.abrTimer_);
-      this.abrTimer_ = null;
-    }
-    /**
-     * Get a list of playlists for the currently selected audio playlist
-     *
-     * @return {Array} the array of audio playlists
-     */
-
-    getAudioTrackPlaylists_() {
-      const main = this.main();
-      const defaultPlaylists = main && main.playlists || []; // if we don't have any audio groups then we can only
-      // assume that the audio tracks are contained in main
-      // playlist array, use that or an empty array.
-
-      if (!main || !main.mediaGroups || !main.mediaGroups.AUDIO) {
-        return defaultPlaylists;
-      }
-      const AUDIO = main.mediaGroups.AUDIO;
-      const groupKeys = Object.keys(AUDIO);
-      let track; // get the current active track
-
-      if (Object.keys(this.mediaTypes_.AUDIO.groups).length) {
-        track = this.mediaTypes_.AUDIO.activeTrack(); // or get the default track from main if mediaTypes_ isn't setup yet
-      } else {
-        // default group is `main` or just the first group.
-        const defaultGroup = AUDIO.main || groupKeys.length && AUDIO[groupKeys[0]];
-        for (const label in defaultGroup) {
-          if (defaultGroup[label].default) {
-            track = {
-              label
-            };
-            break;
-          }
-        }
-      } // no active track no playlists.
-
-      if (!track) {
-        return defaultPlaylists;
-      }
-      const playlists = []; // get all of the playlists that are possible for the
-      // active track.
-
-      for (const group in AUDIO) {
-        if (AUDIO[group][track.label]) {
-          const properties = AUDIO[group][track.label];
-          if (properties.playlists && properties.playlists.length) {
-            playlists.push.apply(playlists, properties.playlists);
-          } else if (properties.uri) {
-            playlists.push(properties);
-          } else if (main.playlists.length) {
-            // if an audio group does not have a uri
-            // see if we have main playlists that use it as a group.
-            // if we do then add those to the playlists list.
-            for (let i = 0; i < main.playlists.length; i++) {
-              const playlist = main.playlists[i];
-              if (playlist.attributes && playlist.attributes.AUDIO && playlist.attributes.AUDIO === group) {
-                playlists.push(playlist);
-              }
-            }
-          }
-        }
-      }
-      if (!playlists.length) {
-        return defaultPlaylists;
-      }
-      return playlists;
-    }
-    /**
-     * Register event handlers on the main playlist loader. A helper
-     * function for construction time.
-     *
-     * @private
-     */
-
-    setupMainPlaylistLoaderListeners_() {
-      this.mainPlaylistLoader_.on('loadedmetadata', () => {
-        const media = this.mainPlaylistLoader_.media();
-        const requestTimeout = media.targetDuration * 1.5 * 1000; // If we don't have any more available playlists, we don't want to
-        // timeout the request.
-
-        if (isLowestEnabledRendition(this.mainPlaylistLoader_.main, this.mainPlaylistLoader_.media())) {
-          this.requestOptions_.timeout = 0;
-        } else {
-          this.requestOptions_.timeout = requestTimeout;
-        } // if this isn't a live video and preload permits, start
-        // downloading segments
-
-        if (media.endList && this.tech_.preload() !== 'none') {
-          this.mainSegmentLoader_.playlist(media, this.requestOptions_);
-          this.mainSegmentLoader_.load();
-        }
-        setupMediaGroups({
-          sourceType: this.sourceType_,
-          segmentLoaders: {
-            AUDIO: this.audioSegmentLoader_,
-            SUBTITLES: this.subtitleSegmentLoader_,
-            main: this.mainSegmentLoader_
-          },
-          tech: this.tech_,
-          requestOptions: this.requestOptions_,
-          mainPlaylistLoader: this.mainPlaylistLoader_,
-          vhs: this.vhs_,
-          main: this.main(),
-          mediaTypes: this.mediaTypes_,
-          excludePlaylist: this.excludePlaylist.bind(this)
-        });
-        this.triggerPresenceUsage_(this.main(), media);
-        this.setupFirstPlay();
-        if (!this.mediaTypes_.AUDIO.activePlaylistLoader || this.mediaTypes_.AUDIO.activePlaylistLoader.media()) {
-          this.trigger('selectedinitialmedia');
-        } else {
-          // We must wait for the active audio playlist loader to
-          // finish setting up before triggering this event so the
-          // representations API and EME setup is correct
-          this.mediaTypes_.AUDIO.activePlaylistLoader.one('loadedmetadata', () => {
-            this.trigger('selectedinitialmedia');
-          });
-        }
-      });
-      this.mainPlaylistLoader_.on('loadedplaylist', () => {
-        if (this.loadOnPlay_) {
-          this.tech_.off('play', this.loadOnPlay_);
-        }
-        let updatedPlaylist = this.mainPlaylistLoader_.media();
-        if (!updatedPlaylist) {
-          // Add content steering listeners on first load and init.
-          this.attachContentSteeringListeners_();
-          this.initContentSteeringController_(); // exclude any variants that are not supported by the browser before selecting
-          // an initial media as the playlist selectors do not consider browser support
-
-          this.excludeUnsupportedVariants_();
-          let selectedMedia;
-          if (this.enableLowInitialPlaylist) {
-            selectedMedia = this.selectInitialPlaylist();
-          }
-          if (!selectedMedia) {
-            selectedMedia = this.selectPlaylist();
-          }
-          if (!selectedMedia || !this.shouldSwitchToMedia_(selectedMedia)) {
-            return;
-          }
-          this.initialMedia_ = selectedMedia;
-          this.switchMedia_(this.initialMedia_, 'initial'); // Under the standard case where a source URL is provided, loadedplaylist will
-          // fire again since the playlist will be requested. In the case of vhs-json
-          // (where the manifest object is provided as the source), when the media
-          // playlist's `segments` list is already available, a media playlist won't be
-          // requested, and loadedplaylist won't fire again, so the playlist handler must be
-          // called on its own here.
-
-          const haveJsonSource = this.sourceType_ === 'vhs-json' && this.initialMedia_.segments;
-          if (!haveJsonSource) {
-            return;
-          }
-          updatedPlaylist = this.initialMedia_;
-        }
-        this.handleUpdatedMediaPlaylist(updatedPlaylist);
-      });
-      this.mainPlaylistLoader_.on('error', () => {
-        const error = this.mainPlaylistLoader_.error;
-        this.excludePlaylist({
-          playlistToExclude: error.playlist,
-          error
-        });
-      });
-      this.mainPlaylistLoader_.on('mediachanging', () => {
-        this.mainSegmentLoader_.abort();
-        this.mainSegmentLoader_.pause();
-      });
-      this.mainPlaylistLoader_.on('mediachange', () => {
-        const media = this.mainPlaylistLoader_.media();
-        const requestTimeout = media.targetDuration * 1.5 * 1000; // If we don't have any more available playlists, we don't want to
-        // timeout the request.
-
-        if (isLowestEnabledRendition(this.mainPlaylistLoader_.main, this.mainPlaylistLoader_.media())) {
-          this.requestOptions_.timeout = 0;
-        } else {
-          this.requestOptions_.timeout = requestTimeout;
-        }
-        if (this.sourceType_ === 'dash') {
-          // we don't want to re-request the same hls playlist right after it was changed
-          this.mainPlaylistLoader_.load();
-        } // TODO: Create a new event on the PlaylistLoader that signals
-        // that the segments have changed in some way and use that to
-        // update the SegmentLoader instead of doing it twice here and
-        // on `loadedplaylist`
-
-        this.mainSegmentLoader_.pause();
-        this.mainSegmentLoader_.playlist(media, this.requestOptions_);
-        if (this.waitingForFastQualityPlaylistReceived_) {
-          this.runFastQualitySwitch_();
-        } else {
-          this.mainSegmentLoader_.load();
-        }
-        this.tech_.trigger({
-          type: 'mediachange',
-          bubbles: true
-        });
-      });
-      this.mainPlaylistLoader_.on('playlistunchanged', () => {
-        const updatedPlaylist = this.mainPlaylistLoader_.media(); // ignore unchanged playlists that have already been
-        // excluded for not-changing. We likely just have a really slowly updating
-        // playlist.
-
-        if (updatedPlaylist.lastExcludeReason_ === 'playlist-unchanged') {
-          return;
-        }
-        const playlistOutdated = this.stuckAtPlaylistEnd_(updatedPlaylist);
-        if (playlistOutdated) {
-          // Playlist has stopped updating and we're stuck at its end. Try to
-          // exclude it and switch to another playlist in the hope that that
-          // one is updating (and give the player a chance to re-adjust to the
-          // safe live point).
-          this.excludePlaylist({
-            error: {
-              message: 'Playlist no longer updating.',
-              reason: 'playlist-unchanged'
-            }
-          }); // useful for monitoring QoS
-
-          this.tech_.trigger('playliststuck');
-        }
-      });
-      this.mainPlaylistLoader_.on('renditiondisabled', () => {
-        this.tech_.trigger({
-          type: 'usage',
-          name: 'vhs-rendition-disabled'
-        });
-      });
-      this.mainPlaylistLoader_.on('renditionenabled', () => {
-        this.tech_.trigger({
-          type: 'usage',
-          name: 'vhs-rendition-enabled'
-        });
-      });
-    }
-    /**
-     * Given an updated media playlist (whether it was loaded for the first time, or
-     * refreshed for live playlists), update any relevant properties and state to reflect
-     * changes in the media that should be accounted for (e.g., cues and duration).
-     *
-     * @param {Object} updatedPlaylist the updated media playlist object
-     *
-     * @private
-     */
-
-    handleUpdatedMediaPlaylist(updatedPlaylist) {
-      if (this.useCueTags_) {
-        this.updateAdCues_(updatedPlaylist);
-      } // TODO: Create a new event on the PlaylistLoader that signals
-      // that the segments have changed in some way and use that to
-      // update the SegmentLoader instead of doing it twice here and
-      // on `mediachange`
-
-      this.mainSegmentLoader_.pause();
-      this.mainSegmentLoader_.playlist(updatedPlaylist, this.requestOptions_);
-      if (this.waitingForFastQualityPlaylistReceived_) {
-        this.runFastQualitySwitch_();
-      }
-      this.updateDuration(!updatedPlaylist.endList); // If the player isn't paused, ensure that the segment loader is running,
-      // as it is possible that it was temporarily stopped while waiting for
-      // a playlist (e.g., in case the playlist errored and we re-requested it).
-
-      if (!this.tech_.paused()) {
-        this.mainSegmentLoader_.load();
-        if (this.audioSegmentLoader_) {
-          this.audioSegmentLoader_.load();
-        }
-      }
-    }
-    /**
-     * A helper function for triggerring presence usage events once per source
-     *
-     * @private
-     */
-
-    triggerPresenceUsage_(main, media) {
-      const mediaGroups = main.mediaGroups || {};
-      let defaultDemuxed = true;
-      const audioGroupKeys = Object.keys(mediaGroups.AUDIO);
-      for (const mediaGroup in mediaGroups.AUDIO) {
-        for (const label in mediaGroups.AUDIO[mediaGroup]) {
-          const properties = mediaGroups.AUDIO[mediaGroup][label];
-          if (!properties.uri) {
-            defaultDemuxed = false;
-          }
-        }
-      }
-      if (defaultDemuxed) {
-        this.tech_.trigger({
-          type: 'usage',
-          name: 'vhs-demuxed'
-        });
-      }
-      if (Object.keys(mediaGroups.SUBTITLES).length) {
-        this.tech_.trigger({
-          type: 'usage',
-          name: 'vhs-webvtt'
-        });
-      }
-      if (Vhs$1.Playlist.isAes(media)) {
-        this.tech_.trigger({
-          type: 'usage',
-          name: 'vhs-aes'
-        });
-      }
-      if (audioGroupKeys.length && Object.keys(mediaGroups.AUDIO[audioGroupKeys[0]]).length > 1) {
-        this.tech_.trigger({
-          type: 'usage',
-          name: 'vhs-alternate-audio'
-        });
-      }
-      if (this.useCueTags_) {
-        this.tech_.trigger({
-          type: 'usage',
-          name: 'vhs-playlist-cue-tags'
-        });
-      }
-    }
-    shouldSwitchToMedia_(nextPlaylist) {
-      const currentPlaylist = this.mainPlaylistLoader_.media() || this.mainPlaylistLoader_.pendingMedia_;
-      const currentTime = this.tech_.currentTime();
-      const bufferLowWaterLine = this.bufferLowWaterLine();
-      const bufferHighWaterLine = this.bufferHighWaterLine();
-      const buffered = this.tech_.buffered();
-      return shouldSwitchToMedia({
-        buffered,
-        currentTime,
-        currentPlaylist,
-        nextPlaylist,
-        bufferLowWaterLine,
-        bufferHighWaterLine,
-        duration: this.duration(),
-        bufferBasedABR: this.bufferBasedABR,
-        log: this.logger_
-      });
-    }
-    /**
-     * Register event handlers on the segment loaders. A helper function
-     * for construction time.
-     *
-     * @private
-     */
-
-    setupSegmentLoaderListeners_() {
-      this.mainSegmentLoader_.on('bandwidthupdate', () => {
-        // Whether or not buffer based ABR or another ABR is used, on a bandwidth change it's
-        // useful to check to see if a rendition switch should be made.
-        this.checkABR_('bandwidthupdate');
-        this.tech_.trigger('bandwidthupdate');
-      });
-      this.mainSegmentLoader_.on('timeout', () => {
-        if (this.bufferBasedABR) {
-          // If a rendition change is needed, then it would've be done on `bandwidthupdate`.
-          // Here the only consideration is that for buffer based ABR there's no guarantee
-          // of an immediate switch (since the bandwidth is averaged with a timeout
-          // bandwidth value of 1), so force a load on the segment loader to keep it going.
-          this.mainSegmentLoader_.load();
-        }
-      }); // `progress` events are not reliable enough of a bandwidth measure to trigger buffer
-      // based ABR.
-
-      if (!this.bufferBasedABR) {
-        this.mainSegmentLoader_.on('progress', () => {
-          this.trigger('progress');
-        });
-      }
-      this.mainSegmentLoader_.on('error', () => {
-        const error = this.mainSegmentLoader_.error();
-        this.excludePlaylist({
-          playlistToExclude: error.playlist,
-          error
-        });
-      });
-      this.mainSegmentLoader_.on('appenderror', () => {
-        this.error = this.mainSegmentLoader_.error_;
-        this.trigger('error');
-      });
-      this.mainSegmentLoader_.on('syncinfoupdate', () => {
-        this.onSyncInfoUpdate_();
-      });
-      this.mainSegmentLoader_.on('timestampoffset', () => {
-        this.tech_.trigger({
-          type: 'usage',
-          name: 'vhs-timestamp-offset'
-        });
-      });
-      this.audioSegmentLoader_.on('syncinfoupdate', () => {
-        this.onSyncInfoUpdate_();
-      });
-      this.audioSegmentLoader_.on('appenderror', () => {
-        this.error = this.audioSegmentLoader_.error_;
-        this.trigger('error');
-      });
-      this.mainSegmentLoader_.on('ended', () => {
-        this.logger_('main segment loader ended');
-        this.onEndOfStream();
-      });
-      this.mainSegmentLoader_.on('earlyabort', event => {
-        // never try to early abort with the new ABR algorithm
-        if (this.bufferBasedABR) {
-          return;
-        }
-        this.delegateLoaders_('all', ['abort']);
-        this.excludePlaylist({
-          error: {
-            message: 'Aborted early because there isn\'t enough bandwidth to complete ' + 'the request without rebuffering.'
-          },
-          playlistExclusionDuration: ABORT_EARLY_EXCLUSION_SECONDS
-        });
-      });
-      const updateCodecs = () => {
-        if (!this.sourceUpdater_.hasCreatedSourceBuffers()) {
-          return this.tryToCreateSourceBuffers_();
-        }
-        const codecs = this.getCodecsOrExclude_(); // no codecs means that the playlist was excluded
-
-        if (!codecs) {
-          return;
-        }
-        this.sourceUpdater_.addOrChangeSourceBuffers(codecs);
-      };
-      this.mainSegmentLoader_.on('trackinfo', updateCodecs);
-      this.audioSegmentLoader_.on('trackinfo', updateCodecs);
-      this.mainSegmentLoader_.on('fmp4', () => {
-        if (!this.triggeredFmp4Usage) {
-          this.tech_.trigger({
-            type: 'usage',
-            name: 'vhs-fmp4'
-          });
-          this.triggeredFmp4Usage = true;
-        }
-      });
-      this.audioSegmentLoader_.on('fmp4', () => {
-        if (!this.triggeredFmp4Usage) {
-          this.tech_.trigger({
-            type: 'usage',
-            name: 'vhs-fmp4'
-          });
-          this.triggeredFmp4Usage = true;
-        }
-      });
-      this.audioSegmentLoader_.on('ended', () => {
-        this.logger_('audioSegmentLoader ended');
-        this.onEndOfStream();
-      });
-    }
-    mediaSecondsLoaded_() {
-      return Math.max(this.audioSegmentLoader_.mediaSecondsLoaded + this.mainSegmentLoader_.mediaSecondsLoaded);
-    }
-    /**
-     * Call load on our SegmentLoaders
-     */
-
-    load() {
-      this.mainSegmentLoader_.load();
-      if (this.mediaTypes_.AUDIO.activePlaylistLoader) {
-        this.audioSegmentLoader_.load();
-      }
-      if (this.mediaTypes_.SUBTITLES.activePlaylistLoader) {
-        this.subtitleSegmentLoader_.load();
-      }
-    }
-    /**
-     * Re-tune playback quality level for the current player
-     * conditions. This method will perform destructive actions like removing
-     * already buffered content in order to readjust the currently active
-     * playlist quickly. This is good for manual quality changes
-     *
-     * @private
-     */
-
-    fastQualityChange_(media = this.selectPlaylist()) {
-      if (media && media === this.mainPlaylistLoader_.media()) {
-        this.logger_('skipping fastQualityChange because new media is same as old');
-        return;
-      }
-      this.switchMedia_(media, 'fast-quality'); // we would like to avoid race condition when we call fastQuality,
-      // reset everything and start loading segments from prev segments instead of new because new playlist is not received yet
-
-      this.waitingForFastQualityPlaylistReceived_ = true;
-    }
-    runFastQualitySwitch_() {
-      this.waitingForFastQualityPlaylistReceived_ = false; // Delete all buffered data to allow an immediate quality switch, then seek to give
-      // the browser a kick to remove any cached frames from the previous rendtion (.04 seconds
-      // ahead was roughly the minimum that will accomplish this across a variety of content
-      // in IE and Edge, but seeking in place is sufficient on all other browsers)
-      // Edge/IE bug: https://developer.microsoft.com/en-us/microsoft-edge/platform/issues/14600375/
-      // Chrome bug: https://bugs.chromium.org/p/chromium/issues/detail?id=651904
-
-      this.mainSegmentLoader_.pause();
-      this.mainSegmentLoader_.resetEverything(() => {
-        this.tech_.setCurrentTime(this.tech_.currentTime());
-      }); // don't need to reset audio as it is reset when media changes
-    }
-    /**
-     * Begin playback.
-     */
-
-    play() {
-      if (this.setupFirstPlay()) {
-        return;
-      }
-      if (this.tech_.ended()) {
-        this.tech_.setCurrentTime(0);
-      }
-      if (this.hasPlayed_) {
-        this.load();
-      }
-      const seekable = this.tech_.seekable(); // if the viewer has paused and we fell out of the live window,
-      // seek forward to the live point
-
-      if (this.tech_.duration() === Infinity) {
-        if (this.tech_.currentTime() < seekable.start(0)) {
-          return this.tech_.setCurrentTime(seekable.end(seekable.length - 1));
-        }
-      }
-    }
-    /**
-     * Seek to the latest media position if this is a live video and the
-     * player and video are loaded and initialized.
-     */
-
-    setupFirstPlay() {
-      const media = this.mainPlaylistLoader_.media(); // Check that everything is ready to begin buffering for the first call to play
-      //  If 1) there is no active media
-      //     2) the player is paused
-      //     3) the first play has already been setup
-      // then exit early
-
-      if (!media || this.tech_.paused() || this.hasPlayed_) {
-        return false;
-      } // when the video is a live stream and/or has a start time
-
-      if (!media.endList || media.start) {
-        const seekable = this.seekable();
-        if (!seekable.length) {
-          // without a seekable range, the player cannot seek to begin buffering at the
-          // live or start point
-          return false;
-        }
-        const seekableEnd = seekable.end(0);
-        let startPoint = seekableEnd;
-        if (media.start) {
-          const offset = media.start.timeOffset;
-          if (offset < 0) {
-            startPoint = Math.max(seekableEnd + offset, seekable.start(0));
-          } else {
-            startPoint = Math.min(seekableEnd, offset);
-          }
-        } // trigger firstplay to inform the source handler to ignore the next seek event
-
-        this.trigger('firstplay'); // seek to the live point
-
-        this.tech_.setCurrentTime(startPoint);
-      }
-      this.hasPlayed_ = true; // we can begin loading now that everything is ready
-
-      this.load();
-      return true;
-    }
-    /**
-     * handle the sourceopen event on the MediaSource
-     *
-     * @private
-     */
-
-    handleSourceOpen_() {
-      // Only attempt to create the source buffer if none already exist.
-      // handleSourceOpen is also called when we are "re-opening" a source buffer
-      // after `endOfStream` has been called (in response to a seek for instance)
-      this.tryToCreateSourceBuffers_(); // if autoplay is enabled, begin playback. This is duplicative of
-      // code in video.js but is required because play() must be invoked
-      // *after* the media source has opened.
-
-      if (this.tech_.autoplay()) {
-        const playPromise = this.tech_.play(); // Catch/silence error when a pause interrupts a play request
-        // on browsers which return a promise
-
-        if (typeof playPromise !== 'undefined' && typeof playPromise.then === 'function') {
-          playPromise.then(null, e => {});
-        }
-      }
-      this.trigger('sourceopen');
-    }
-    /**
-     * handle the sourceended event on the MediaSource
-     *
-     * @private
-     */
-
-    handleSourceEnded_() {
-      if (!this.inbandTextTracks_.metadataTrack_) {
-        return;
-      }
-      const cues = this.inbandTextTracks_.metadataTrack_.cues;
-      if (!cues || !cues.length) {
-        return;
-      }
-      const duration = this.duration();
-      cues[cues.length - 1].endTime = isNaN(duration) || Math.abs(duration) === Infinity ? Number.MAX_VALUE : duration;
-    }
-    /**
-     * handle the durationchange event on the MediaSource
-     *
-     * @private
-     */
-
-    handleDurationChange_() {
-      this.tech_.trigger('durationchange');
-    }
-    /**
-     * Calls endOfStream on the media source when all active stream types have called
-     * endOfStream
-     *
-     * @param {string} streamType
-     *        Stream type of the segment loader that called endOfStream
-     * @private
-     */
-
-    onEndOfStream() {
-      let isEndOfStream = this.mainSegmentLoader_.ended_;
-      if (this.mediaTypes_.AUDIO.activePlaylistLoader) {
-        const mainMediaInfo = this.mainSegmentLoader_.getCurrentMediaInfo_(); // if the audio playlist loader exists, then alternate audio is active
-
-        if (!mainMediaInfo || mainMediaInfo.hasVideo) {
-          // if we do not know if the main segment loader contains video yet or if we
-          // definitively know the main segment loader contains video, then we need to wait
-          // for both main and audio segment loaders to call endOfStream
-          isEndOfStream = isEndOfStream && this.audioSegmentLoader_.ended_;
-        } else {
-          // otherwise just rely on the audio loader
-          isEndOfStream = this.audioSegmentLoader_.ended_;
-        }
-      }
-      if (!isEndOfStream) {
-        return;
-      }
-      this.stopABRTimer_();
-      this.sourceUpdater_.endOfStream();
-    }
-    /**
-     * Check if a playlist has stopped being updated
-     *
-     * @param {Object} playlist the media playlist object
-     * @return {boolean} whether the playlist has stopped being updated or not
-     */
-
-    stuckAtPlaylistEnd_(playlist) {
-      const seekable = this.seekable();
-      if (!seekable.length) {
-        // playlist doesn't have enough information to determine whether we are stuck
-        return false;
-      }
-      const expired = this.syncController_.getExpiredTime(playlist, this.duration());
-      if (expired === null) {
-        return false;
-      } // does not use the safe live end to calculate playlist end, since we
-      // don't want to say we are stuck while there is still content
-
-      const absolutePlaylistEnd = Vhs$1.Playlist.playlistEnd(playlist, expired);
-      const currentTime = this.tech_.currentTime();
-      const buffered = this.tech_.buffered();
-      if (!buffered.length) {
-        // return true if the playhead reached the absolute end of the playlist
-        return absolutePlaylistEnd - currentTime <= SAFE_TIME_DELTA;
-      }
-      const bufferedEnd = buffered.end(buffered.length - 1); // return true if there is too little buffer left and buffer has reached absolute
-      // end of playlist
-
-      return bufferedEnd - currentTime <= SAFE_TIME_DELTA && absolutePlaylistEnd - bufferedEnd <= SAFE_TIME_DELTA;
-    }
-    /**
-     * Exclude a playlist for a set amount of time, making it unavailable for selection by
-     * the rendition selection algorithm, then force a new playlist (rendition) selection.
-     *
-     * @param {Object=} playlistToExclude
-     *                  the playlist to exclude, defaults to the currently selected playlist
-     * @param {Object=} error
-     *                  an optional error
-     * @param {number=} playlistExclusionDuration
-     *                  an optional number of seconds to exclude the playlist
-     */
-
-    excludePlaylist({
-      playlistToExclude = this.mainPlaylistLoader_.media(),
-      error = {},
-      playlistExclusionDuration
-    }) {
-      // If the `error` was generated by the playlist loader, it will contain
-      // the playlist we were trying to load (but failed) and that should be
-      // excluded instead of the currently selected playlist which is likely
-      // out-of-date in this scenario
-      playlistToExclude = playlistToExclude || this.mainPlaylistLoader_.media();
-      playlistExclusionDuration = playlistExclusionDuration || error.playlistExclusionDuration || this.playlistExclusionDuration; // If there is no current playlist, then an error occurred while we were
-      // trying to load the main OR while we were disposing of the tech
-
-      if (!playlistToExclude) {
-        this.error = error;
-        if (this.mediaSource.readyState !== 'open') {
-          this.trigger('error');
-        } else {
-          this.sourceUpdater_.endOfStream('network');
-        }
-        return;
-      }
-      playlistToExclude.playlistErrors_++;
-      const playlists = this.mainPlaylistLoader_.main.playlists;
-      const enabledPlaylists = playlists.filter(isEnabled);
-      const isFinalRendition = enabledPlaylists.length === 1 && enabledPlaylists[0] === playlistToExclude; // Don't exclude the only playlist unless it was excluded
-      // forever
-
-      if (playlists.length === 1 && playlistExclusionDuration !== Infinity) {
-        videojs.log.warn(`Problem encountered with playlist ${playlistToExclude.id}. ` + 'Trying again since it is the only playlist.');
-        this.tech_.trigger('retryplaylist'); // if this is a final rendition, we should delay
-
-        return this.mainPlaylistLoader_.load(isFinalRendition);
-      }
-      if (isFinalRendition) {
-        // If we're content steering, try other pathways.
-        if (this.main().contentSteering) {
-          const pathway = this.pathwayAttribute_(playlistToExclude); // Ignore at least 1 steering manifest refresh.
-
-          const reIncludeDelay = this.contentSteeringController_.steeringManifest.ttl * 1000;
-          this.contentSteeringController_.excludePathway(pathway);
-          this.excludeThenChangePathway_();
-          setTimeout(() => {
-            this.contentSteeringController_.addAvailablePathway(pathway);
-          }, reIncludeDelay);
-          return;
-        } // Since we're on the final non-excluded playlist, and we're about to exclude
-        // it, instead of erring the player or retrying this playlist, clear out the current
-        // exclusion list. This allows other playlists to be attempted in case any have been
-        // fixed.
-
-        let reincluded = false;
-        playlists.forEach(playlist => {
-          // skip current playlist which is about to be excluded
-          if (playlist === playlistToExclude) {
-            return;
-          }
-          const excludeUntil = playlist.excludeUntil; // a playlist cannot be reincluded if it wasn't excluded to begin with.
-
-          if (typeof excludeUntil !== 'undefined' && excludeUntil !== Infinity) {
-            reincluded = true;
-            delete playlist.excludeUntil;
-          }
-        });
-        if (reincluded) {
-          videojs.log.warn('Removing other playlists from the exclusion list because the last ' + 'rendition is about to be excluded.'); // Technically we are retrying a playlist, in that we are simply retrying a previous
-          // playlist. This is needed for users relying on the retryplaylist event to catch a
-          // case where the player might be stuck and looping through "dead" playlists.
-
-          this.tech_.trigger('retryplaylist');
-        }
-      } // Exclude this playlist
-
-      let excludeUntil;
-      if (playlistToExclude.playlistErrors_ > this.maxPlaylistRetries) {
-        excludeUntil = Infinity;
-      } else {
-        excludeUntil = Date.now() + playlistExclusionDuration * 1000;
-      }
-      playlistToExclude.excludeUntil = excludeUntil;
-      if (error.reason) {
-        playlistToExclude.lastExcludeReason_ = error.reason;
-      }
-      this.tech_.trigger('excludeplaylist');
-      this.tech_.trigger({
-        type: 'usage',
-        name: 'vhs-rendition-excluded'
-      }); // TODO: only load a new playlist if we're excluding the current playlist
-      // If this function was called with a playlist that's not the current active playlist
-      // (e.g., media().id !== playlistToExclude.id),
-      // then a new playlist should not be selected and loaded, as there's nothing wrong with the current playlist.
-
-      const nextPlaylist = this.selectPlaylist();
-      if (!nextPlaylist) {
-        this.error = 'Playback cannot continue. No available working or supported playlists.';
-        this.trigger('error');
-        return;
-      }
-      const logFn = error.internal ? this.logger_ : videojs.log.warn;
-      const errorMessage = error.message ? ' ' + error.message : '';
-      logFn(`${error.internal ? 'Internal problem' : 'Problem'} encountered with playlist ${playlistToExclude.id}.` + `${errorMessage} Switching to playlist ${nextPlaylist.id}.`); // if audio group changed reset audio loaders
-
-      if (nextPlaylist.attributes.AUDIO !== playlistToExclude.attributes.AUDIO) {
-        this.delegateLoaders_('audio', ['abort', 'pause']);
-      } // if subtitle group changed reset subtitle loaders
-
-      if (nextPlaylist.attributes.SUBTITLES !== playlistToExclude.attributes.SUBTITLES) {
-        this.delegateLoaders_('subtitle', ['abort', 'pause']);
-      }
-      this.delegateLoaders_('main', ['abort', 'pause']);
-      const delayDuration = nextPlaylist.targetDuration / 2 * 1000 || 5 * 1000;
-      const shouldDelay = typeof nextPlaylist.lastRequest === 'number' && Date.now() - nextPlaylist.lastRequest <= delayDuration; // delay if it's a final rendition or if the last refresh is sooner than half targetDuration
-
-      return this.switchMedia_(nextPlaylist, 'exclude', isFinalRendition || shouldDelay);
-    }
-    /**
-     * Pause all segment/playlist loaders
-     */
-
-    pauseLoading() {
-      this.delegateLoaders_('all', ['abort', 'pause']);
-      this.stopABRTimer_();
-    }
-    /**
-     * Call a set of functions in order on playlist loaders, segment loaders,
-     * or both types of loaders.
-     *
-     * @param {string} filter
-     *        Filter loaders that should call fnNames using a string. Can be:
-     *        * all - run on all loaders
-     *        * audio - run on all audio loaders
-     *        * subtitle - run on all subtitle loaders
-     *        * main - run on the main loaders
-     *
-     * @param {Array|string} fnNames
-     *        A string or array of function names to call.
-     */
-
-    delegateLoaders_(filter, fnNames) {
-      const loaders = [];
-      const dontFilterPlaylist = filter === 'all';
-      if (dontFilterPlaylist || filter === 'main') {
-        loaders.push(this.mainPlaylistLoader_);
-      }
-      const mediaTypes = [];
-      if (dontFilterPlaylist || filter === 'audio') {
-        mediaTypes.push('AUDIO');
-      }
-      if (dontFilterPlaylist || filter === 'subtitle') {
-        mediaTypes.push('CLOSED-CAPTIONS');
-        mediaTypes.push('SUBTITLES');
-      }
-      mediaTypes.forEach(mediaType => {
-        const loader = this.mediaTypes_[mediaType] && this.mediaTypes_[mediaType].activePlaylistLoader;
-        if (loader) {
-          loaders.push(loader);
-        }
-      });
-      ['main', 'audio', 'subtitle'].forEach(name => {
-        const loader = this[`${name}SegmentLoader_`];
-        if (loader && (filter === name || filter === 'all')) {
-          loaders.push(loader);
-        }
-      });
-      loaders.forEach(loader => fnNames.forEach(fnName => {
-        if (typeof loader[fnName] === 'function') {
-          loader[fnName]();
-        }
-      }));
-    }
-    /**
-     * set the current time on all segment loaders
-     *
-     * @param {TimeRange} currentTime the current time to set
-     * @return {TimeRange} the current time
-     */
-
-    setCurrentTime(currentTime) {
-      const buffered = findRange(this.tech_.buffered(), currentTime);
-      if (!(this.mainPlaylistLoader_ && this.mainPlaylistLoader_.media())) {
-        // return immediately if the metadata is not ready yet
-        return 0;
-      } // it's clearly an edge-case but don't thrown an error if asked to
-      // seek within an empty playlist
-
-      if (!this.mainPlaylistLoader_.media().segments) {
-        return 0;
-      } // if the seek location is already buffered, continue buffering as usual
-
-      if (buffered && buffered.length) {
-        return currentTime;
-      } // cancel outstanding requests so we begin buffering at the new
-      // location
-
-      this.mainSegmentLoader_.pause();
-      this.mainSegmentLoader_.resetEverything();
-      if (this.mediaTypes_.AUDIO.activePlaylistLoader) {
-        this.audioSegmentLoader_.pause();
-        this.audioSegmentLoader_.resetEverything();
-      }
-      if (this.mediaTypes_.SUBTITLES.activePlaylistLoader) {
-        this.subtitleSegmentLoader_.pause();
-        this.subtitleSegmentLoader_.resetEverything();
-      } // start segment loader loading in case they are paused
-
-      this.load();
-    }
-    /**
-     * get the current duration
-     *
-     * @return {TimeRange} the duration
-     */
-
-    duration() {
-      if (!this.mainPlaylistLoader_) {
-        return 0;
-      }
-      const media = this.mainPlaylistLoader_.media();
-      if (!media) {
-        // no playlists loaded yet, so can't determine a duration
-        return 0;
-      } // Don't rely on the media source for duration in the case of a live playlist since
-      // setting the native MediaSource's duration to infinity ends up with consequences to
-      // seekable behavior. See https://github.com/w3c/media-source/issues/5 for details.
-      //
-      // This is resolved in the spec by https://github.com/w3c/media-source/pull/92,
-      // however, few browsers have support for setLiveSeekableRange()
-      // https://developer.mozilla.org/en-US/docs/Web/API/MediaSource/setLiveSeekableRange
-      //
-      // Until a time when the duration of the media source can be set to infinity, and a
-      // seekable range specified across browsers, just return Infinity.
-
-      if (!media.endList) {
-        return Infinity;
-      } // Since this is a VOD video, it is safe to rely on the media source's duration (if
-      // available). If it's not available, fall back to a playlist-calculated estimate.
-
-      if (this.mediaSource) {
-        return this.mediaSource.duration;
-      }
-      return Vhs$1.Playlist.duration(media);
-    }
-    /**
-     * check the seekable range
-     *
-     * @return {TimeRange} the seekable range
-     */
-
-    seekable() {
-      return this.seekable_;
-    }
-    onSyncInfoUpdate_() {
-      let audioSeekable; // TODO check for creation of both source buffers before updating seekable
-      //
-      // A fix was made to this function where a check for
-      // this.sourceUpdater_.hasCreatedSourceBuffers
-      // was added to ensure that both source buffers were created before seekable was
-      // updated. However, it originally had a bug where it was checking for a true and
-      // returning early instead of checking for false. Setting it to check for false to
-      // return early though created other issues. A call to play() would check for seekable
-      // end without verifying that a seekable range was present. In addition, even checking
-      // for that didn't solve some issues, as handleFirstPlay is sometimes worked around
-      // due to a media update calling load on the segment loaders, skipping a seek to live,
-      // thereby starting live streams at the beginning of the stream rather than at the end.
-      //
-      // This conditional should be fixed to wait for the creation of two source buffers at
-      // the same time as the other sections of code are fixed to properly seek to live and
-      // not throw an error due to checking for a seekable end when no seekable range exists.
-      //
-      // For now, fall back to the older behavior, with the understanding that the seekable
-      // range may not be completely correct, leading to a suboptimal initial live point.
-
-      if (!this.mainPlaylistLoader_) {
-        return;
-      }
-      let media = this.mainPlaylistLoader_.media();
-      if (!media) {
-        return;
-      }
-      let expired = this.syncController_.getExpiredTime(media, this.duration());
-      if (expired === null) {
-        // not enough information to update seekable
-        return;
-      }
-      const main = this.mainPlaylistLoader_.main;
-      const mainSeekable = Vhs$1.Playlist.seekable(media, expired, Vhs$1.Playlist.liveEdgeDelay(main, media));
-      if (mainSeekable.length === 0) {
-        return;
-      }
-      if (this.mediaTypes_.AUDIO.activePlaylistLoader) {
-        media = this.mediaTypes_.AUDIO.activePlaylistLoader.media();
-        expired = this.syncController_.getExpiredTime(media, this.duration());
-        if (expired === null) {
-          return;
-        }
-        audioSeekable = Vhs$1.Playlist.seekable(media, expired, Vhs$1.Playlist.liveEdgeDelay(main, media));
-        if (audioSeekable.length === 0) {
-          return;
-        }
-      }
-      let oldEnd;
-      let oldStart;
-      if (this.seekable_ && this.seekable_.length) {
-        oldEnd = this.seekable_.end(0);
-        oldStart = this.seekable_.start(0);
-      }
-      if (!audioSeekable) {
-        // seekable has been calculated based on buffering video data so it
-        // can be returned directly
-        this.seekable_ = mainSeekable;
-      } else if (audioSeekable.start(0) > mainSeekable.end(0) || mainSeekable.start(0) > audioSeekable.end(0)) {
-        // seekables are pretty far off, rely on main
-        this.seekable_ = mainSeekable;
-      } else {
-        this.seekable_ = createTimeRanges([[audioSeekable.start(0) > mainSeekable.start(0) ? audioSeekable.start(0) : mainSeekable.start(0), audioSeekable.end(0) < mainSeekable.end(0) ? audioSeekable.end(0) : mainSeekable.end(0)]]);
-      } // seekable is the same as last time
-
-      if (this.seekable_ && this.seekable_.length) {
-        if (this.seekable_.end(0) === oldEnd && this.seekable_.start(0) === oldStart) {
-          return;
-        }
-      }
-      this.logger_(`seekable updated [${printableRange(this.seekable_)}]`);
-      this.tech_.trigger('seekablechanged');
-    }
-    /**
-     * Update the player duration
-     */
-
-    updateDuration(isLive) {
-      if (this.updateDuration_) {
-        this.mediaSource.removeEventListener('sourceopen', this.updateDuration_);
-        this.updateDuration_ = null;
-      }
-      if (this.mediaSource.readyState !== 'open') {
-        this.updateDuration_ = this.updateDuration.bind(this, isLive);
-        this.mediaSource.addEventListener('sourceopen', this.updateDuration_);
-        return;
-      }
-      if (isLive) {
-        const seekable = this.seekable();
-        if (!seekable.length) {
-          return;
-        } // Even in the case of a live playlist, the native MediaSource's duration should not
-        // be set to Infinity (even though this would be expected for a live playlist), since
-        // setting the native MediaSource's duration to infinity ends up with consequences to
-        // seekable behavior. See https://github.com/w3c/media-source/issues/5 for details.
-        //
-        // This is resolved in the spec by https://github.com/w3c/media-source/pull/92,
-        // however, few browsers have support for setLiveSeekableRange()
-        // https://developer.mozilla.org/en-US/docs/Web/API/MediaSource/setLiveSeekableRange
-        //
-        // Until a time when the duration of the media source can be set to infinity, and a
-        // seekable range specified across browsers, the duration should be greater than or
-        // equal to the last possible seekable value.
-        // MediaSource duration starts as NaN
-        // It is possible (and probable) that this case will never be reached for many
-        // sources, since the MediaSource reports duration as the highest value without
-        // accounting for timestamp offset. For example, if the timestamp offset is -100 and
-        // we buffered times 0 to 100 with real times of 100 to 200, even though current
-        // time will be between 0 and 100, the native media source may report the duration
-        // as 200. However, since we report duration separate from the media source (as
-        // Infinity), and as long as the native media source duration value is greater than
-        // our reported seekable range, seeks will work as expected. The large number as
-        // duration for live is actually a strategy used by some players to work around the
-        // issue of live seekable ranges cited above.
-
-        if (isNaN(this.mediaSource.duration) || this.mediaSource.duration < seekable.end(seekable.length - 1)) {
-          this.sourceUpdater_.setDuration(seekable.end(seekable.length - 1));
-        }
-        return;
-      }
-      const buffered = this.tech_.buffered();
-      let duration = Vhs$1.Playlist.duration(this.mainPlaylistLoader_.media());
-      if (buffered.length > 0) {
-        duration = Math.max(duration, buffered.end(buffered.length - 1));
-      }
-      if (this.mediaSource.duration !== duration) {
-        this.sourceUpdater_.setDuration(duration);
-      }
-    }
-    /**
-     * dispose of the PlaylistController and everything
-     * that it controls
-     */
-
-    dispose() {
-      this.trigger('dispose');
-      this.decrypter_.terminate();
-      this.mainPlaylistLoader_.dispose();
-      this.mainSegmentLoader_.dispose();
-      this.contentSteeringController_.dispose();
-      this.keyStatusMap_.clear();
-      if (this.loadOnPlay_) {
-        this.tech_.off('play', this.loadOnPlay_);
-      }
-      ['AUDIO', 'SUBTITLES'].forEach(type => {
-        const groups = this.mediaTypes_[type].groups;
-        for (const id in groups) {
-          groups[id].forEach(group => {
-            if (group.playlistLoader) {
-              group.playlistLoader.dispose();
-            }
-          });
-        }
-      });
-      this.audioSegmentLoader_.dispose();
-      this.subtitleSegmentLoader_.dispose();
-      this.sourceUpdater_.dispose();
-      this.timelineChangeController_.dispose();
-      this.stopABRTimer_();
-      if (this.updateDuration_) {
-        this.mediaSource.removeEventListener('sourceopen', this.updateDuration_);
-      }
-      this.mediaSource.removeEventListener('durationchange', this.handleDurationChange_); // load the media source into the player
-
-      this.mediaSource.removeEventListener('sourceopen', this.handleSourceOpen_);
-      this.mediaSource.removeEventListener('sourceended', this.handleSourceEnded_);
-      this.off();
-    }
-    /**
-     * return the main playlist object if we have one
-     *
-     * @return {Object} the main playlist object that we parsed
-     */
-
-    main() {
-      return this.mainPlaylistLoader_.main;
-    }
-    /**
-     * return the currently selected playlist
-     *
-     * @return {Object} the currently selected playlist object that we parsed
-     */
-
-    media() {
-      // playlist loader will not return media if it has not been fully loaded
-      return this.mainPlaylistLoader_.media() || this.initialMedia_;
-    }
-    areMediaTypesKnown_() {
-      const usingAudioLoader = !!this.mediaTypes_.AUDIO.activePlaylistLoader;
-      const hasMainMediaInfo = !!this.mainSegmentLoader_.getCurrentMediaInfo_(); // if we are not using an audio loader, then we have audio media info
-      // otherwise check on the segment loader.
-
-      const hasAudioMediaInfo = !usingAudioLoader ? true : !!this.audioSegmentLoader_.getCurrentMediaInfo_(); // one or both loaders has not loaded sufficently to get codecs
-
-      if (!hasMainMediaInfo || !hasAudioMediaInfo) {
-        return false;
-      }
-      return true;
-    }
-    getCodecsOrExclude_() {
-      const media = {
-        main: this.mainSegmentLoader_.getCurrentMediaInfo_() || {},
-        audio: this.audioSegmentLoader_.getCurrentMediaInfo_() || {}
-      };
-      const playlist = this.mainSegmentLoader_.getPendingSegmentPlaylist() || this.media(); // set "main" media equal to video
-
-      media.video = media.main;
-      const playlistCodecs = codecsForPlaylist(this.main(), playlist);
-      const codecs = {};
-      const usingAudioLoader = !!this.mediaTypes_.AUDIO.activePlaylistLoader;
-      if (media.main.hasVideo) {
-        codecs.video = playlistCodecs.video || media.main.videoCodec || DEFAULT_VIDEO_CODEC;
-      }
-      if (media.main.isMuxed) {
-        codecs.video += `,${playlistCodecs.audio || media.main.audioCodec || DEFAULT_AUDIO_CODEC}`;
-      }
-      if (media.main.hasAudio && !media.main.isMuxed || media.audio.hasAudio || usingAudioLoader) {
-        codecs.audio = playlistCodecs.audio || media.main.audioCodec || media.audio.audioCodec || DEFAULT_AUDIO_CODEC; // set audio isFmp4 so we use the correct "supports" function below
-
-        media.audio.isFmp4 = media.main.hasAudio && !media.main.isMuxed ? media.main.isFmp4 : media.audio.isFmp4;
-      } // no codecs, no playback.
-
-      if (!codecs.audio && !codecs.video) {
-        this.excludePlaylist({
-          playlistToExclude: playlist,
-          error: {
-            message: 'Could not determine codecs for playlist.'
-          },
-          playlistExclusionDuration: Infinity
-        });
-        return;
-      } // fmp4 relies on browser support, while ts relies on muxer support
-
-      const supportFunction = (isFmp4, codec) => isFmp4 ? browserSupportsCodec(codec) : muxerSupportsCodec(codec);
-      const unsupportedCodecs = {};
-      let unsupportedAudio;
-      ['video', 'audio'].forEach(function (type) {
-        if (codecs.hasOwnProperty(type) && !supportFunction(media[type].isFmp4, codecs[type])) {
-          const supporter = media[type].isFmp4 ? 'browser' : 'muxer';
-          unsupportedCodecs[supporter] = unsupportedCodecs[supporter] || [];
-          unsupportedCodecs[supporter].push(codecs[type]);
-          if (type === 'audio') {
-            unsupportedAudio = supporter;
-          }
-        }
-      });
-      if (usingAudioLoader && unsupportedAudio && playlist.attributes.AUDIO) {
-        const audioGroup = playlist.attributes.AUDIO;
-        this.main().playlists.forEach(variant => {
-          const variantAudioGroup = variant.attributes && variant.attributes.AUDIO;
-          if (variantAudioGroup === audioGroup && variant !== playlist) {
-            variant.excludeUntil = Infinity;
-          }
-        });
-        this.logger_(`excluding audio group ${audioGroup} as ${unsupportedAudio} does not support codec(s): "${codecs.audio}"`);
-      } // if we have any unsupported codecs exclude this playlist.
-
-      if (Object.keys(unsupportedCodecs).length) {
-        const message = Object.keys(unsupportedCodecs).reduce((acc, supporter) => {
-          if (acc) {
-            acc += ', ';
-          }
-          acc += `${supporter} does not support codec(s): "${unsupportedCodecs[supporter].join(',')}"`;
-          return acc;
-        }, '') + '.';
-        this.excludePlaylist({
-          playlistToExclude: playlist,
-          error: {
-            internal: true,
-            message
-          },
-          playlistExclusionDuration: Infinity
-        });
-        return;
-      } // check if codec switching is happening
-
-      if (this.sourceUpdater_.hasCreatedSourceBuffers() && !this.sourceUpdater_.canChangeType()) {
-        const switchMessages = [];
-        ['video', 'audio'].forEach(type => {
-          const newCodec = (parseCodecs(this.sourceUpdater_.codecs[type] || '')[0] || {}).type;
-          const oldCodec = (parseCodecs(codecs[type] || '')[0] || {}).type;
-          if (newCodec && oldCodec && newCodec.toLowerCase() !== oldCodec.toLowerCase()) {
-            switchMessages.push(`"${this.sourceUpdater_.codecs[type]}" -> "${codecs[type]}"`);
-          }
-        });
-        if (switchMessages.length) {
-          this.excludePlaylist({
-            playlistToExclude: playlist,
-            error: {
-              message: `Codec switching not supported: ${switchMessages.join(', ')}.`,
-              internal: true
-            },
-            playlistExclusionDuration: Infinity
-          });
-          return;
-        }
-      } // TODO: when using the muxer shouldn't we just return
-      // the codecs that the muxer outputs?
-
-      return codecs;
-    }
-    /**
-     * Create source buffers and exlude any incompatible renditions.
-     *
-     * @private
-     */
-
-    tryToCreateSourceBuffers_() {
-      // media source is not ready yet or sourceBuffers are already
-      // created.
-      if (this.mediaSource.readyState !== 'open' || this.sourceUpdater_.hasCreatedSourceBuffers()) {
-        return;
-      }
-      if (!this.areMediaTypesKnown_()) {
-        return;
-      }
-      const codecs = this.getCodecsOrExclude_(); // no codecs means that the playlist was excluded
-
-      if (!codecs) {
-        return;
-      }
-      this.sourceUpdater_.createSourceBuffers(codecs);
-      const codecString = [codecs.video, codecs.audio].filter(Boolean).join(',');
-      this.excludeIncompatibleVariants_(codecString);
-    }
-    /**
-     * Excludes playlists with codecs that are unsupported by the muxer and browser.
-     */
-
-    excludeUnsupportedVariants_() {
-      const playlists = this.main().playlists;
-      const ids = []; // TODO: why don't we have a property to loop through all
-      // playlist? Why did we ever mix indexes and keys?
-
-      Object.keys(playlists).forEach(key => {
-        const variant = playlists[key]; // check if we already processed this playlist.
-
-        if (ids.indexOf(variant.id) !== -1) {
-          return;
-        }
-        ids.push(variant.id);
-        const codecs = codecsForPlaylist(this.main, variant);
-        const unsupported = [];
-        if (codecs.audio && !muxerSupportsCodec(codecs.audio) && !browserSupportsCodec(codecs.audio)) {
-          unsupported.push(`audio codec ${codecs.audio}`);
-        }
-        if (codecs.video && !muxerSupportsCodec(codecs.video) && !browserSupportsCodec(codecs.video)) {
-          unsupported.push(`video codec ${codecs.video}`);
-        }
-        if (codecs.text && codecs.text === 'stpp.ttml.im1t') {
-          unsupported.push(`text codec ${codecs.text}`);
-        }
-        if (unsupported.length) {
-          variant.excludeUntil = Infinity;
-          this.logger_(`excluding ${variant.id} for unsupported: ${unsupported.join(', ')}`);
-        }
-      });
-    }
-    /**
-     * Exclude playlists that are known to be codec or
-     * stream-incompatible with the SourceBuffer configuration. For
-     * instance, Media Source Extensions would cause the video element to
-     * stall waiting for video data if you switched from a variant with
-     * video and audio to an audio-only one.
-     *
-     * @param {Object} media a media playlist compatible with the current
-     * set of SourceBuffers. Variants in the current main playlist that
-     * do not appear to have compatible codec or stream configurations
-     * will be excluded from the default playlist selection algorithm
-     * indefinitely.
-     * @private
-     */
-
-    excludeIncompatibleVariants_(codecString) {
-      const ids = [];
-      const playlists = this.main().playlists;
-      const codecs = unwrapCodecList(parseCodecs(codecString));
-      const codecCount_ = codecCount(codecs);
-      const videoDetails = codecs.video && parseCodecs(codecs.video)[0] || null;
-      const audioDetails = codecs.audio && parseCodecs(codecs.audio)[0] || null;
-      Object.keys(playlists).forEach(key => {
-        const variant = playlists[key]; // check if we already processed this playlist.
-        // or it if it is already excluded forever.
-
-        if (ids.indexOf(variant.id) !== -1 || variant.excludeUntil === Infinity) {
-          return;
-        }
-        ids.push(variant.id);
-        const exclusionReasons = []; // get codecs from the playlist for this variant
-
-        const variantCodecs = codecsForPlaylist(this.mainPlaylistLoader_.main, variant);
-        const variantCodecCount = codecCount(variantCodecs); // if no codecs are listed, we cannot determine that this
-        // variant is incompatible. Wait for mux.js to probe
-
-        if (!variantCodecs.audio && !variantCodecs.video) {
-          return;
-        } // TODO: we can support this by removing the
-        // old media source and creating a new one, but it will take some work.
-        // The number of streams cannot change
-
-        if (variantCodecCount !== codecCount_) {
-          exclusionReasons.push(`codec count "${variantCodecCount}" !== "${codecCount_}"`);
-        } // only exclude playlists by codec change, if codecs cannot switch
-        // during playback.
-
-        if (!this.sourceUpdater_.canChangeType()) {
-          const variantVideoDetails = variantCodecs.video && parseCodecs(variantCodecs.video)[0] || null;
-          const variantAudioDetails = variantCodecs.audio && parseCodecs(variantCodecs.audio)[0] || null; // the video codec cannot change
-
-          if (variantVideoDetails && videoDetails && variantVideoDetails.type.toLowerCase() !== videoDetails.type.toLowerCase()) {
-            exclusionReasons.push(`video codec "${variantVideoDetails.type}" !== "${videoDetails.type}"`);
-          } // the audio codec cannot change
-
-          if (variantAudioDetails && audioDetails && variantAudioDetails.type.toLowerCase() !== audioDetails.type.toLowerCase()) {
-            exclusionReasons.push(`audio codec "${variantAudioDetails.type}" !== "${audioDetails.type}"`);
-          }
-        }
-        if (exclusionReasons.length) {
-          variant.excludeUntil = Infinity;
-          this.logger_(`excluding ${variant.id}: ${exclusionReasons.join(' && ')}`);
-        }
-      });
-    }
-    updateAdCues_(media) {
-      let offset = 0;
-      const seekable = this.seekable();
-      if (seekable.length) {
-        offset = seekable.start(0);
-      }
-      updateAdCues(media, this.cueTagsTrack_, offset);
-    }
-    /**
-     * Calculates the desired forward buffer length based on current time
-     *
-     * @return {number} Desired forward buffer length in seconds
-     */
-
-    goalBufferLength() {
-      const currentTime = this.tech_.currentTime();
-      const initial = Config.GOAL_BUFFER_LENGTH;
-      const rate = Config.GOAL_BUFFER_LENGTH_RATE;
-      const max = Math.max(initial, Config.MAX_GOAL_BUFFER_LENGTH);
-      return Math.min(initial + currentTime * rate, max);
-    }
-    /**
-     * Calculates the desired buffer low water line based on current time
-     *
-     * @return {number} Desired buffer low water line in seconds
-     */
-
-    bufferLowWaterLine() {
-      const currentTime = this.tech_.currentTime();
-      const initial = Config.BUFFER_LOW_WATER_LINE;
-      const rate = Config.BUFFER_LOW_WATER_LINE_RATE;
-      const max = Math.max(initial, Config.MAX_BUFFER_LOW_WATER_LINE);
-      const newMax = Math.max(initial, Config.EXPERIMENTAL_MAX_BUFFER_LOW_WATER_LINE);
-      return Math.min(initial + currentTime * rate, this.bufferBasedABR ? newMax : max);
-    }
-    bufferHighWaterLine() {
-      return Config.BUFFER_HIGH_WATER_LINE;
-    }
-    addDateRangesToTextTrack_(dateRanges) {
-      createMetadataTrackIfNotExists(this.inbandTextTracks_, 'com.apple.streaming', this.tech_);
-      addDateRangeMetadata({
-        inbandTextTracks: this.inbandTextTracks_,
-        dateRanges
-      });
-    }
-    addMetadataToTextTrack(dispatchType, metadataArray, videoDuration) {
-      const timestampOffset = this.sourceUpdater_.videoBuffer ? this.sourceUpdater_.videoTimestampOffset() : this.sourceUpdater_.audioTimestampOffset(); // There's potentially an issue where we could double add metadata if there's a muxed
-      // audio/video source with a metadata track, and an alt audio with a metadata track.
-      // However, this probably won't happen, and if it does it can be handled then.
-
-      createMetadataTrackIfNotExists(this.inbandTextTracks_, dispatchType, this.tech_);
-      addMetadata({
-        inbandTextTracks: this.inbandTextTracks_,
-        metadataArray,
-        timestampOffset,
-        videoDuration
-      });
-    }
-    /**
-     * Utility for getting the pathway or service location from an HLS or DASH playlist.
-     *
-     * @param {Object} playlist for getting pathway from.
-     * @return the pathway attribute of a playlist
-     */
-
-    pathwayAttribute_(playlist) {
-      return playlist.attributes['PATHWAY-ID'] || playlist.attributes.serviceLocation;
-    }
-    /**
-     * Initialize available pathways and apply the tag properties.
-     */
-
-    initContentSteeringController_() {
-      const main = this.main();
-      if (!main.contentSteering) {
-        return;
-      }
-      for (const playlist of main.playlists) {
-        this.contentSteeringController_.addAvailablePathway(this.pathwayAttribute_(playlist));
-      }
-      this.contentSteeringController_.assignTagProperties(main.uri, main.contentSteering); // request the steering manifest immediately if queryBeforeStart is set.
-
-      if (this.contentSteeringController_.queryBeforeStart) {
-        // When queryBeforeStart is true, initial request should omit steering parameters.
-        this.contentSteeringController_.requestSteeringManifest(true);
-        return;
-      } // otherwise start content steering after playback starts
-
-      this.tech_.one('canplay', () => {
-        this.contentSteeringController_.requestSteeringManifest();
-      });
-    }
-    /**
-     * Reset the content steering controller and re-init.
-     */
-
-    resetContentSteeringController_() {
-      this.contentSteeringController_.clearAvailablePathways();
-      this.contentSteeringController_.dispose();
-      this.initContentSteeringController_();
-    }
-    /**
-     * Attaches the listeners for content steering.
-     */
-
-    attachContentSteeringListeners_() {
-      this.contentSteeringController_.on('content-steering', this.excludeThenChangePathway_.bind(this));
-      if (this.sourceType_ === 'dash') {
-        this.mainPlaylistLoader_.on('loadedplaylist', () => {
-          const main = this.main(); // check if steering tag or pathways changed.
-
-          const didDashTagChange = this.contentSteeringController_.didDASHTagChange(main.uri, main.contentSteering);
-          const didPathwaysChange = () => {
-            const availablePathways = this.contentSteeringController_.getAvailablePathways();
-            const newPathways = [];
-            for (const playlist of main.playlists) {
-              const serviceLocation = playlist.attributes.serviceLocation;
-              if (serviceLocation) {
-                newPathways.push(serviceLocation);
-                if (!availablePathways.has(serviceLocation)) {
-                  return true;
-                }
-              }
-            } // If we have no new serviceLocations and previously had availablePathways
-
-            if (!newPathways.length && availablePathways.size) {
-              return true;
-            }
-            return false;
-          };
-          if (didDashTagChange || didPathwaysChange()) {
-            this.resetContentSteeringController_();
-          }
-        });
-      }
-    }
-    /**
-     * Simple exclude and change playlist logic for content steering.
-     */
-
-    excludeThenChangePathway_() {
-      const currentPathway = this.contentSteeringController_.getPathway();
-      if (!currentPathway) {
-        return;
-      }
-      this.handlePathwayClones_();
-      const main = this.main();
-      const playlists = main.playlists;
-      const ids = new Set();
-      let didEnablePlaylists = false;
-      Object.keys(playlists).forEach(key => {
-        const variant = playlists[key];
-        const pathwayId = this.pathwayAttribute_(variant);
-        const differentPathwayId = pathwayId && currentPathway !== pathwayId;
-        const steeringExclusion = variant.excludeUntil === Infinity && variant.lastExcludeReason_ === 'content-steering';
-        if (steeringExclusion && !differentPathwayId) {
-          delete variant.excludeUntil;
-          delete variant.lastExcludeReason_;
-          didEnablePlaylists = true;
-        }
-        const noExcludeUntil = !variant.excludeUntil && variant.excludeUntil !== Infinity;
-        const shouldExclude = !ids.has(variant.id) && differentPathwayId && noExcludeUntil;
-        if (!shouldExclude) {
-          return;
-        }
-        ids.add(variant.id);
-        variant.excludeUntil = Infinity;
-        variant.lastExcludeReason_ = 'content-steering'; // TODO: kind of spammy, maybe move this.
-
-        this.logger_(`excluding ${variant.id} for ${variant.lastExcludeReason_}`);
-      });
-      if (this.contentSteeringController_.manifestType_ === 'DASH') {
-        Object.keys(this.mediaTypes_).forEach(key => {
-          const type = this.mediaTypes_[key];
-          if (type.activePlaylistLoader) {
-            const currentPlaylist = type.activePlaylistLoader.media_; // Check if the current media playlist matches the current CDN
-
-            if (currentPlaylist && currentPlaylist.attributes.serviceLocation !== currentPathway) {
-              didEnablePlaylists = true;
-            }
-          }
-        });
-      }
-      if (didEnablePlaylists) {
-        this.changeSegmentPathway_();
-      }
-    }
-    /**
-     * Add, update, or delete playlists and media groups for
-     * the pathway clones for HLS Content Steering.
-     *
-     * See https://datatracker.ietf.org/doc/draft-pantos-hls-rfc8216bis/
-     *
-     * NOTE: Pathway cloning does not currently support the `PER_VARIANT_URIS` and
-     * `PER_RENDITION_URIS` as we do not handle `STABLE-VARIANT-ID` or
-     * `STABLE-RENDITION-ID` values.
-     */
-
-    handlePathwayClones_() {
-      const main = this.main();
-      const playlists = main.playlists;
-      const currentPathwayClones = this.contentSteeringController_.currentPathwayClones;
-      const nextPathwayClones = this.contentSteeringController_.nextPathwayClones;
-      const hasClones = currentPathwayClones && currentPathwayClones.size || nextPathwayClones && nextPathwayClones.size;
-      if (!hasClones) {
-        return;
-      }
-      for (const [id, clone] of currentPathwayClones.entries()) {
-        const newClone = nextPathwayClones.get(id); // Delete the old pathway clone.
-
-        if (!newClone) {
-          this.mainPlaylistLoader_.updateOrDeleteClone(clone);
-          this.contentSteeringController_.excludePathway(id);
-        }
-      }
-      for (const [id, clone] of nextPathwayClones.entries()) {
-        const oldClone = currentPathwayClones.get(id); // Create a new pathway if it is a new pathway clone object.
-
-        if (!oldClone) {
-          const playlistsToClone = playlists.filter(p => {
-            return p.attributes['PATHWAY-ID'] === clone['BASE-ID'];
-          });
-          playlistsToClone.forEach(p => {
-            this.mainPlaylistLoader_.addClonePathway(clone, p);
-          });
-          this.contentSteeringController_.addAvailablePathway(id);
-          continue;
-        } // There have not been changes to the pathway clone object, so skip.
-
-        if (this.equalPathwayClones_(oldClone, clone)) {
-          continue;
-        } // Update a preexisting cloned pathway.
-        // True is set for the update flag.
-
-        this.mainPlaylistLoader_.updateOrDeleteClone(clone, true);
-        this.contentSteeringController_.addAvailablePathway(id);
-      } // Deep copy contents of next to current pathways.
-
-      this.contentSteeringController_.currentPathwayClones = new Map(JSON.parse(JSON.stringify([...nextPathwayClones])));
-    }
-    /**
-     * Determines whether two pathway clone objects are equivalent.
-     *
-     * @param {Object} a The first pathway clone object.
-     * @param {Object} b The second pathway clone object.
-     * @return {boolean} True if the pathway clone objects are equal, false otherwise.
-     */
-
-    equalPathwayClones_(a, b) {
-      if (a['BASE-ID'] !== b['BASE-ID'] || a.ID !== b.ID || a['URI-REPLACEMENT'].HOST !== b['URI-REPLACEMENT'].HOST) {
-        return false;
-      }
-      const aParams = a['URI-REPLACEMENT'].PARAMS;
-      const bParams = b['URI-REPLACEMENT'].PARAMS; // We need to iterate through both lists of params because one could be
-      // missing a parameter that the other has.
-
-      for (const p in aParams) {
-        if (aParams[p] !== bParams[p]) {
-          return false;
-        }
-      }
-      for (const p in bParams) {
-        if (aParams[p] !== bParams[p]) {
-          return false;
-        }
-      }
-      return true;
-    }
-    /**
-     * Changes the current playlists for audio, video and subtitles after a new pathway
-     * is chosen from content steering.
-     */
-
-    changeSegmentPathway_() {
-      const nextPlaylist = this.selectPlaylist();
-      this.pauseLoading(); // Switch audio and text track playlists if necessary in DASH
-
-      if (this.contentSteeringController_.manifestType_ === 'DASH') {
-        this.switchMediaForDASHContentSteering_();
-      }
-      this.switchMedia_(nextPlaylist, 'content-steering');
-    }
-    /**
-     * Iterates through playlists and check their keyId set and compare with the
-     * keyStatusMap, only enable playlists that have a usable key. If the playlist
-     * has no keyId leave it enabled by default.
-     */
-
-    excludeNonUsablePlaylistsByKeyId_() {
-      if (!this.mainPlaylistLoader_ || !this.mainPlaylistLoader_.main) {
-        return;
-      }
-      let nonUsableKeyStatusCount = 0;
-      const NON_USABLE = 'non-usable';
-      this.mainPlaylistLoader_.main.playlists.forEach(playlist => {
-        const keyIdSet = this.mainPlaylistLoader_.getKeyIdSet(playlist); // If the playlist doesn't have keyIDs lets not exclude it.
-
-        if (!keyIdSet || !keyIdSet.size) {
-          return;
-        }
-        keyIdSet.forEach(key => {
-          const USABLE = 'usable';
-          const hasUsableKeyStatus = this.keyStatusMap_.has(key) && this.keyStatusMap_.get(key) === USABLE;
-          const nonUsableExclusion = playlist.lastExcludeReason_ === NON_USABLE && playlist.excludeUntil === Infinity;
-          if (!hasUsableKeyStatus) {
-            // Only exclude playlists that haven't already been excluded as non-usable.
-            if (playlist.excludeUntil !== Infinity && playlist.lastExcludeReason_ !== NON_USABLE) {
-              playlist.excludeUntil = Infinity;
-              playlist.lastExcludeReason_ = NON_USABLE;
-              this.logger_(`excluding playlist ${playlist.id} because the key ID ${key} doesn't exist in the keyStatusMap or is not ${USABLE}`);
-            } // count all nonUsableKeyStatus
-
-            nonUsableKeyStatusCount++;
-          } else if (hasUsableKeyStatus && nonUsableExclusion) {
-            delete playlist.excludeUntil;
-            delete playlist.lastExcludeReason_;
-            this.logger_(`enabling playlist ${playlist.id} because key ID ${key} is ${USABLE}`);
-          }
-        });
-      }); // If for whatever reason every playlist has a non usable key status. Lets try re-including the SD renditions as a failsafe.
-
-      if (nonUsableKeyStatusCount >= this.mainPlaylistLoader_.main.playlists.length) {
-        this.mainPlaylistLoader_.main.playlists.forEach(playlist => {
-          const isNonHD = playlist && playlist.attributes && playlist.attributes.RESOLUTION && playlist.attributes.RESOLUTION.height < 720;
-          const excludedForNonUsableKey = playlist.excludeUntil === Infinity && playlist.lastExcludeReason_ === NON_USABLE;
-          if (isNonHD && excludedForNonUsableKey) {
-            // Only delete the excludeUntil so we don't try and re-exclude these playlists.
-            delete playlist.excludeUntil;
-            videojs.log.warn(`enabling non-HD playlist ${playlist.id} because all playlists were excluded due to ${NON_USABLE} key IDs`);
-          }
-        });
-      }
-    }
-    /**
-     * Adds a keystatus to the keystatus map, tries to convert to string if necessary.
-     *
-     * @param {any} keyId the keyId to add a status for
-     * @param {string} status the status of the keyId
-     */
-
-    addKeyStatus_(keyId, status) {
-      const isString = typeof keyId === 'string';
-      const keyIdHexString = isString ? keyId : bufferToHexString(keyId);
-      const formattedKeyIdString = keyIdHexString.slice(0, 32).toLowerCase();
-      this.logger_(`KeyStatus '${status}' with key ID ${formattedKeyIdString} added to the keyStatusMap`);
-      this.keyStatusMap_.set(formattedKeyIdString, status);
-    }
-    /**
-     * Utility function for adding key status to the keyStatusMap and filtering usable encrypted playlists.
-     *
-     * @param {any} keyId the keyId from the keystatuschange event
-     * @param {string} status the key status string
-     */
-
-    updatePlaylistByKeyStatus(keyId, status) {
-      this.addKeyStatus_(keyId, status);
-      if (!this.waitingForFastQualityPlaylistReceived_) {
-        this.excludeNonUsableThenChangePlaylist_();
-      } // Listen to loadedplaylist with a single listener and check for new contentProtection elements when a playlist is updated.
-
-      this.mainPlaylistLoader_.off('loadedplaylist', this.excludeNonUsableThenChangePlaylist_.bind(this));
-      this.mainPlaylistLoader_.on('loadedplaylist', this.excludeNonUsableThenChangePlaylist_.bind(this));
-    }
-    excludeNonUsableThenChangePlaylist_() {
-      this.excludeNonUsablePlaylistsByKeyId_();
-      this.fastQualityChange_();
-    }
-  }
-
-  /**
-   * Returns a function that acts as the Enable/disable playlist function.
-   *
-   * @param {PlaylistLoader} loader - The main playlist loader
-   * @param {string} playlistID - id of the playlist
-   * @param {Function} changePlaylistFn - A function to be called after a
-   * playlist's enabled-state has been changed. Will NOT be called if a
-   * playlist's enabled-state is unchanged
-   * @param {boolean=} enable - Value to set the playlist enabled-state to
-   * or if undefined returns the current enabled-state for the playlist
-   * @return {Function} Function for setting/getting enabled
-   */
-
-  const enableFunction = (loader, playlistID, changePlaylistFn) => enable => {
-    const playlist = loader.main.playlists[playlistID];
-    const incompatible = isIncompatible(playlist);
-    const currentlyEnabled = isEnabled(playlist);
-    if (typeof enable === 'undefined') {
-      return currentlyEnabled;
-    }
-    if (enable) {
-      delete playlist.disabled;
-    } else {
-      playlist.disabled = true;
-    }
-    if (enable !== currentlyEnabled && !incompatible) {
-      // Ensure the outside world knows about our changes
-      changePlaylistFn(playlist);
-      if (enable) {
-        loader.trigger('renditionenabled');
-      } else {
-        loader.trigger('renditiondisabled');
-      }
-    }
-    return enable;
-  };
-  /**
-   * The representation object encapsulates the publicly visible information
-   * in a media playlist along with a setter/getter-type function (enabled)
-   * for changing the enabled-state of a particular playlist entry
-   *
-   * @class Representation
-   */
-
-  class Representation {
-    constructor(vhsHandler, playlist, id) {
-      const {
-        playlistController_: pc
-      } = vhsHandler;
-      const qualityChangeFunction = pc.fastQualityChange_.bind(pc); // some playlist attributes are optional
-
-      if (playlist.attributes) {
-        const resolution = playlist.attributes.RESOLUTION;
-        this.width = resolution && resolution.width;
-        this.height = resolution && resolution.height;
-        this.bandwidth = playlist.attributes.BANDWIDTH;
-        this.frameRate = playlist.attributes['FRAME-RATE'];
-      }
-      this.codecs = codecsForPlaylist(pc.main(), playlist);
-      this.playlist = playlist; // The id is simply the ordinality of the media playlist
-      // within the main playlist
-
-      this.id = id; // Partially-apply the enableFunction to create a playlist-
-      // specific variant
-
-      this.enabled = enableFunction(vhsHandler.playlists, playlist.id, qualityChangeFunction);
-    }
-  }
-  /**
-   * A mixin function that adds the `representations` api to an instance
-   * of the VhsHandler class
-   *
-   * @param {VhsHandler} vhsHandler - An instance of VhsHandler to add the
-   * representation API into
-   */
-
-  const renditionSelectionMixin = function (vhsHandler) {
-    // Add a single API-specific function to the VhsHandler instance
-    vhsHandler.representations = () => {
-      const main = vhsHandler.playlistController_.main();
-      const playlists = isAudioOnly(main) ? vhsHandler.playlistController_.getAudioTrackPlaylists_() : main.playlists;
-      if (!playlists) {
-        return [];
-      }
-      return playlists.filter(media => !isIncompatible(media)).map((e, i) => new Representation(vhsHandler, e, e.id));
-    };
-  };
-
-  /**
-   * @file playback-watcher.js
-   *
-   * Playback starts, and now my watch begins. It shall not end until my death. I shall
-   * take no wait, hold no uncleared timeouts, father no bad seeks. I shall wear no crowns
-   * and win no glory. I shall live and die at my post. I am the corrector of the underflow.
-   * I am the watcher of gaps. I am the shield that guards the realms of seekable. I pledge
-   * my life and honor to the Playback Watch, for this Player and all the Players to come.
-   */
-
-  const timerCancelEvents = ['seeking', 'seeked', 'pause', 'playing', 'error'];
-  /**
-   * @class PlaybackWatcher
-   */
-
-  class PlaybackWatcher {
-    /**
-     * Represents an PlaybackWatcher object.
-     *
-     * @class
-     * @param {Object} options an object that includes the tech and settings
-     */
-    constructor(options) {
-      this.playlistController_ = options.playlistController;
-      this.tech_ = options.tech;
-      this.seekable = options.seekable;
-      this.allowSeeksWithinUnsafeLiveWindow = options.allowSeeksWithinUnsafeLiveWindow;
-      this.liveRangeSafeTimeDelta = options.liveRangeSafeTimeDelta;
-      this.media = options.media;
-      this.consecutiveUpdates = 0;
-      this.lastRecordedTime = null;
-      this.checkCurrentTimeTimeout_ = null;
-      this.logger_ = logger('PlaybackWatcher');
-      this.logger_('initialize');
-      const playHandler = () => this.monitorCurrentTime_();
-      const canPlayHandler = () => this.monitorCurrentTime_();
-      const waitingHandler = () => this.techWaiting_();
-      const cancelTimerHandler = () => this.resetTimeUpdate_();
-      const pc = this.playlistController_;
-      const loaderTypes = ['main', 'subtitle', 'audio'];
-      const loaderChecks = {};
-      loaderTypes.forEach(type => {
-        loaderChecks[type] = {
-          reset: () => this.resetSegmentDownloads_(type),
-          updateend: () => this.checkSegmentDownloads_(type)
-        };
-        pc[`${type}SegmentLoader_`].on('appendsdone', loaderChecks[type].updateend); // If a rendition switch happens during a playback stall where the buffer
-        // isn't changing we want to reset. We cannot assume that the new rendition
-        // will also be stalled, until after new appends.
-
-        pc[`${type}SegmentLoader_`].on('playlistupdate', loaderChecks[type].reset); // Playback stalls should not be detected right after seeking.
-        // This prevents one segment playlists (single vtt or single segment content)
-        // from being detected as stalling. As the buffer will not change in those cases, since
-        // the buffer is the entire video duration.
-
-        this.tech_.on(['seeked', 'seeking'], loaderChecks[type].reset);
-      });
-      /**
-       * We check if a seek was into a gap through the following steps:
-       * 1. We get a seeking event and we do not get a seeked event. This means that
-       *    a seek was attempted but not completed.
-       * 2. We run `fixesBadSeeks_` on segment loader appends. This means that we already
-       *    removed everything from our buffer and appended a segment, and should be ready
-       *    to check for gaps.
-       */
-
-      const setSeekingHandlers = fn => {
-        ['main', 'audio'].forEach(type => {
-          pc[`${type}SegmentLoader_`][fn]('appended', this.seekingAppendCheck_);
-        });
-      };
-      this.seekingAppendCheck_ = () => {
-        if (this.fixesBadSeeks_()) {
-          this.consecutiveUpdates = 0;
-          this.lastRecordedTime = this.tech_.currentTime();
-          setSeekingHandlers('off');
-        }
-      };
-      this.clearSeekingAppendCheck_ = () => setSeekingHandlers('off');
-      this.watchForBadSeeking_ = () => {
-        this.clearSeekingAppendCheck_();
-        setSeekingHandlers('on');
-      };
-      this.tech_.on('seeked', this.clearSeekingAppendCheck_);
-      this.tech_.on('seeking', this.watchForBadSeeking_);
-      this.tech_.on('waiting', waitingHandler);
-      this.tech_.on(timerCancelEvents, cancelTimerHandler);
-      this.tech_.on('canplay', canPlayHandler);
-      /*
-        An edge case exists that results in gaps not being skipped when they exist at the beginning of a stream. This case
-        is surfaced in one of two ways:
-         1)  The `waiting` event is fired before the player has buffered content, making it impossible
-            to find or skip the gap. The `waiting` event is followed by a `play` event. On first play
-            we can check if playback is stalled due to a gap, and skip the gap if necessary.
-        2)  A source with a gap at the beginning of the stream is loaded programatically while the player
-            is in a playing state. To catch this case, it's important that our one-time play listener is setup
-            even if the player is in a playing state
-      */
-
-      this.tech_.one('play', playHandler); // Define the dispose function to clean up our events
-
-      this.dispose = () => {
-        this.clearSeekingAppendCheck_();
-        this.logger_('dispose');
-        this.tech_.off('waiting', waitingHandler);
-        this.tech_.off(timerCancelEvents, cancelTimerHandler);
-        this.tech_.off('canplay', canPlayHandler);
-        this.tech_.off('play', playHandler);
-        this.tech_.off('seeking', this.watchForBadSeeking_);
-        this.tech_.off('seeked', this.clearSeekingAppendCheck_);
-        loaderTypes.forEach(type => {
-          pc[`${type}SegmentLoader_`].off('appendsdone', loaderChecks[type].updateend);
-          pc[`${type}SegmentLoader_`].off('playlistupdate', loaderChecks[type].reset);
-          this.tech_.off(['seeked', 'seeking'], loaderChecks[type].reset);
-        });
-        if (this.checkCurrentTimeTimeout_) {
-          window.clearTimeout(this.checkCurrentTimeTimeout_);
-        }
-        this.resetTimeUpdate_();
-      };
-    }
-    /**
-     * Periodically check current time to see if playback stopped
-     *
-     * @private
-     */
-
-    monitorCurrentTime_() {
-      this.checkCurrentTime_();
-      if (this.checkCurrentTimeTimeout_) {
-        window.clearTimeout(this.checkCurrentTimeTimeout_);
-      } // 42 = 24 fps // 250 is what Webkit uses // FF uses 15
-
-      this.checkCurrentTimeTimeout_ = window.setTimeout(this.monitorCurrentTime_.bind(this), 250);
-    }
-    /**
-     * Reset stalled download stats for a specific type of loader
-     *
-     * @param {string} type
-     *        The segment loader type to check.
-     *
-     * @listens SegmentLoader#playlistupdate
-     * @listens Tech#seeking
-     * @listens Tech#seeked
-     */
-
-    resetSegmentDownloads_(type) {
-      const loader = this.playlistController_[`${type}SegmentLoader_`];
-      if (this[`${type}StalledDownloads_`] > 0) {
-        this.logger_(`resetting possible stalled download count for ${type} loader`);
-      }
-      this[`${type}StalledDownloads_`] = 0;
-      this[`${type}Buffered_`] = loader.buffered_();
-    }
-    /**
-     * Checks on every segment `appendsdone` to see
-     * if segment appends are making progress. If they are not
-     * and we are still downloading bytes. We exclude the playlist.
-     *
-     * @param {string} type
-     *        The segment loader type to check.
-     *
-     * @listens SegmentLoader#appendsdone
-     */
-
-    checkSegmentDownloads_(type) {
-      const pc = this.playlistController_;
-      const loader = pc[`${type}SegmentLoader_`];
-      const buffered = loader.buffered_();
-      const isBufferedDifferent = isRangeDifferent(this[`${type}Buffered_`], buffered);
-      this[`${type}Buffered_`] = buffered; // if another watcher is going to fix the issue or
-      // the buffered value for this loader changed
-      // appends are working
-
-      if (isBufferedDifferent) {
-        this.resetSegmentDownloads_(type);
-        return;
-      }
-      this[`${type}StalledDownloads_`]++;
-      this.logger_(`found #${this[`${type}StalledDownloads_`]} ${type} appends that did not increase buffer (possible stalled download)`, {
-        playlistId: loader.playlist_ && loader.playlist_.id,
-        buffered: timeRangesToArray(buffered)
-      }); // after 10 possibly stalled appends with no reset, exclude
-
-      if (this[`${type}StalledDownloads_`] < 10) {
-        return;
-      }
-      this.logger_(`${type} loader stalled download exclusion`);
-      this.resetSegmentDownloads_(type);
-      this.tech_.trigger({
-        type: 'usage',
-        name: `vhs-${type}-download-exclusion`
-      });
-      if (type === 'subtitle') {
-        return;
-      } // TODO: should we exclude audio tracks rather than main tracks
-      // when type is audio?
-
-      pc.excludePlaylist({
-        error: {
-          message: `Excessive ${type} segment downloading detected.`
-        },
-        playlistExclusionDuration: Infinity
-      });
-    }
-    /**
-     * The purpose of this function is to emulate the "waiting" event on
-     * browsers that do not emit it when they are waiting for more
-     * data to continue playback
-     *
-     * @private
-     */
-
-    checkCurrentTime_() {
-      if (this.tech_.paused() || this.tech_.seeking()) {
-        return;
-      }
-      const currentTime = this.tech_.currentTime();
-      const buffered = this.tech_.buffered();
-      if (this.lastRecordedTime === currentTime && (!buffered.length || currentTime + SAFE_TIME_DELTA >= buffered.end(buffered.length - 1))) {
-        // If current time is at the end of the final buffered region, then any playback
-        // stall is most likely caused by buffering in a low bandwidth environment. The tech
-        // should fire a `waiting` event in this scenario, but due to browser and tech
-        // inconsistencies. Calling `techWaiting_` here allows us to simulate
-        // responding to a native `waiting` event when the tech fails to emit one.
-        return this.techWaiting_();
-      }
-      if (this.consecutiveUpdates >= 5 && currentTime === this.lastRecordedTime) {
-        this.consecutiveUpdates++;
-        this.waiting_();
-      } else if (currentTime === this.lastRecordedTime) {
-        this.consecutiveUpdates++;
-      } else {
-        this.consecutiveUpdates = 0;
-        this.lastRecordedTime = currentTime;
-      }
-    }
-    /**
-     * Resets the 'timeupdate' mechanism designed to detect that we are stalled
-     *
-     * @private
-     */
-
-    resetTimeUpdate_() {
-      this.consecutiveUpdates = 0;
-    }
-    /**
-     * Fixes situations where there's a bad seek
-     *
-     * @return {boolean} whether an action was taken to fix the seek
-     * @private
-     */
-
-    fixesBadSeeks_() {
-      const seeking = this.tech_.seeking();
-      if (!seeking) {
-        return false;
-      } // TODO: It's possible that these seekable checks should be moved out of this function
-      // and into a function that runs on seekablechange. It's also possible that we only need
-      // afterSeekableWindow as the buffered check at the bottom is good enough to handle before
-      // seekable range.
-
-      const seekable = this.seekable();
-      const currentTime = this.tech_.currentTime();
-      const isAfterSeekableRange = this.afterSeekableWindow_(seekable, currentTime, this.media(), this.allowSeeksWithinUnsafeLiveWindow);
-      let seekTo;
-      if (isAfterSeekableRange) {
-        const seekableEnd = seekable.end(seekable.length - 1); // sync to live point (if VOD, our seekable was updated and we're simply adjusting)
-
-        seekTo = seekableEnd;
-      }
-      if (this.beforeSeekableWindow_(seekable, currentTime)) {
-        const seekableStart = seekable.start(0); // sync to the beginning of the live window
-        // provide a buffer of .1 seconds to handle rounding/imprecise numbers
-
-        seekTo = seekableStart + (
-        // if the playlist is too short and the seekable range is an exact time (can
-        // happen in live with a 3 segment playlist), then don't use a time delta
-        seekableStart === seekable.end(0) ? 0 : SAFE_TIME_DELTA);
-      }
-      if (typeof seekTo !== 'undefined') {
-        this.logger_(`Trying to seek outside of seekable at time ${currentTime} with ` + `seekable range ${printableRange(seekable)}. Seeking to ` + `${seekTo}.`);
-        this.tech_.setCurrentTime(seekTo);
-        return true;
-      }
-      const sourceUpdater = this.playlistController_.sourceUpdater_;
-      const buffered = this.tech_.buffered();
-      const audioBuffered = sourceUpdater.audioBuffer ? sourceUpdater.audioBuffered() : null;
-      const videoBuffered = sourceUpdater.videoBuffer ? sourceUpdater.videoBuffered() : null;
-      const media = this.media(); // verify that at least two segment durations or one part duration have been
-      // appended before checking for a gap.
-
-      const minAppendedDuration = media.partTargetDuration ? media.partTargetDuration : (media.targetDuration - TIME_FUDGE_FACTOR) * 2; // verify that at least two segment durations have been
-      // appended before checking for a gap.
-
-      const bufferedToCheck = [audioBuffered, videoBuffered];
-      for (let i = 0; i < bufferedToCheck.length; i++) {
-        // skip null buffered
-        if (!bufferedToCheck[i]) {
-          continue;
-        }
-        const timeAhead = timeAheadOf(bufferedToCheck[i], currentTime); // if we are less than two video/audio segment durations or one part
-        // duration behind we haven't appended enough to call this a bad seek.
-
-        if (timeAhead < minAppendedDuration) {
-          return false;
-        }
-      }
-      const nextRange = findNextRange(buffered, currentTime); // we have appended enough content, but we don't have anything buffered
-      // to seek over the gap
-
-      if (nextRange.length === 0) {
-        return false;
-      }
-      seekTo = nextRange.start(0) + SAFE_TIME_DELTA;
-      this.logger_(`Buffered region starts (${nextRange.start(0)}) ` + ` just beyond seek point (${currentTime}). Seeking to ${seekTo}.`);
-      this.tech_.setCurrentTime(seekTo);
-      return true;
-    }
-    /**
-     * Handler for situations when we determine the player is waiting.
-     *
-     * @private
-     */
-
-    waiting_() {
-      if (this.techWaiting_()) {
-        return;
-      } // All tech waiting checks failed. Use last resort correction
-
-      const currentTime = this.tech_.currentTime();
-      const buffered = this.tech_.buffered();
-      const currentRange = findRange(buffered, currentTime); // Sometimes the player can stall for unknown reasons within a contiguous buffered
-      // region with no indication that anything is amiss (seen in Firefox). Seeking to
-      // currentTime is usually enough to kickstart the player. This checks that the player
-      // is currently within a buffered region before attempting a corrective seek.
-      // Chrome does not appear to continue `timeupdate` events after a `waiting` event
-      // until there is ~ 3 seconds of forward buffer available. PlaybackWatcher should also
-      // make sure there is ~3 seconds of forward buffer before taking any corrective action
-      // to avoid triggering an `unknownwaiting` event when the network is slow.
-
-      if (currentRange.length && currentTime + 3 <= currentRange.end(0)) {
-        this.resetTimeUpdate_();
-        this.tech_.setCurrentTime(currentTime);
-        this.logger_(`Stopped at ${currentTime} while inside a buffered region ` + `[${currentRange.start(0)} -> ${currentRange.end(0)}]. Attempting to resume ` + 'playback by seeking to the current time.'); // unknown waiting corrections may be useful for monitoring QoS
-
-        this.tech_.trigger({
-          type: 'usage',
-          name: 'vhs-unknown-waiting'
-        });
-        return;
-      }
-    }
-    /**
-     * Handler for situations when the tech fires a `waiting` event
-     *
-     * @return {boolean}
-     *         True if an action (or none) was needed to correct the waiting. False if no
-     *         checks passed
-     * @private
-     */
-
-    techWaiting_() {
-      const seekable = this.seekable();
-      const currentTime = this.tech_.currentTime();
-      if (this.tech_.seeking()) {
-        // Tech is seeking or already waiting on another action, no action needed
-        return true;
-      }
-      if (this.beforeSeekableWindow_(seekable, currentTime)) {
-        const livePoint = seekable.end(seekable.length - 1);
-        this.logger_(`Fell out of live window at time ${currentTime}. Seeking to ` + `live point (seekable end) ${livePoint}`);
-        this.resetTimeUpdate_();
-        this.tech_.setCurrentTime(livePoint); // live window resyncs may be useful for monitoring QoS
-
-        this.tech_.trigger({
-          type: 'usage',
-          name: 'vhs-live-resync'
-        });
-        return true;
-      }
-      const sourceUpdater = this.tech_.vhs.playlistController_.sourceUpdater_;
-      const buffered = this.tech_.buffered();
-      const videoUnderflow = this.videoUnderflow_({
-        audioBuffered: sourceUpdater.audioBuffered(),
-        videoBuffered: sourceUpdater.videoBuffered(),
-        currentTime
-      });
-      if (videoUnderflow) {
-        // Even though the video underflowed and was stuck in a gap, the audio overplayed
-        // the gap, leading currentTime into a buffered range. Seeking to currentTime
-        // allows the video to catch up to the audio position without losing any audio
-        // (only suffering ~3 seconds of frozen video and a pause in audio playback).
-        this.resetTimeUpdate_();
-        this.tech_.setCurrentTime(currentTime); // video underflow may be useful for monitoring QoS
-
-        this.tech_.trigger({
-          type: 'usage',
-          name: 'vhs-video-underflow'
-        });
-        return true;
-      }
-      const nextRange = findNextRange(buffered, currentTime); // check for gap
-
-      if (nextRange.length > 0) {
-        this.logger_(`Stopped at ${currentTime} and seeking to ${nextRange.start(0)}`);
-        this.resetTimeUpdate_();
-        this.skipTheGap_(currentTime);
-        return true;
-      } // All checks failed. Returning false to indicate failure to correct waiting
-
-      return false;
-    }
-    afterSeekableWindow_(seekable, currentTime, playlist, allowSeeksWithinUnsafeLiveWindow = false) {
-      if (!seekable.length) {
-        // we can't make a solid case if there's no seekable, default to false
-        return false;
-      }
-      let allowedEnd = seekable.end(seekable.length - 1) + SAFE_TIME_DELTA;
-      const isLive = !playlist.endList;
-      const isLLHLS = typeof playlist.partTargetDuration === 'number';
-      if (isLive && (isLLHLS || allowSeeksWithinUnsafeLiveWindow)) {
-        allowedEnd = seekable.end(seekable.length - 1) + playlist.targetDuration * 3;
-      }
-      if (currentTime > allowedEnd) {
-        return true;
-      }
-      return false;
-    }
-    beforeSeekableWindow_(seekable, currentTime) {
-      if (seekable.length &&
-      // can't fall before 0 and 0 seekable start identifies VOD stream
-      seekable.start(0) > 0 && currentTime < seekable.start(0) - this.liveRangeSafeTimeDelta) {
-        return true;
-      }
-      return false;
-    }
-    videoUnderflow_({
-      videoBuffered,
-      audioBuffered,
-      currentTime
-    }) {
-      // audio only content will not have video underflow :)
-      if (!videoBuffered) {
-        return;
-      }
-      let gap; // find a gap in demuxed content.
-
-      if (videoBuffered.length && audioBuffered.length) {
-        // in Chrome audio will continue to play for ~3s when we run out of video
-        // so we have to check that the video buffer did have some buffer in the
-        // past.
-        const lastVideoRange = findRange(videoBuffered, currentTime - 3);
-        const videoRange = findRange(videoBuffered, currentTime);
-        const audioRange = findRange(audioBuffered, currentTime);
-        if (audioRange.length && !videoRange.length && lastVideoRange.length) {
-          gap = {
-            start: lastVideoRange.end(0),
-            end: audioRange.end(0)
-          };
-        } // find a gap in muxed content.
-      } else {
-        const nextRange = findNextRange(videoBuffered, currentTime); // Even if there is no available next range, there is still a possibility we are
-        // stuck in a gap due to video underflow.
-
-        if (!nextRange.length) {
-          gap = this.gapFromVideoUnderflow_(videoBuffered, currentTime);
-        }
-      }
-      if (gap) {
-        this.logger_(`Encountered a gap in video from ${gap.start} to ${gap.end}. ` + `Seeking to current time ${currentTime}`);
-        return true;
-      }
-      return false;
-    }
-    /**
-     * Timer callback. If playback still has not proceeded, then we seek
-     * to the start of the next buffered region.
-     *
-     * @private
-     */
-
-    skipTheGap_(scheduledCurrentTime) {
-      const buffered = this.tech_.buffered();
-      const currentTime = this.tech_.currentTime();
-      const nextRange = findNextRange(buffered, currentTime);
-      this.resetTimeUpdate_();
-      if (nextRange.length === 0 || currentTime !== scheduledCurrentTime) {
-        return;
-      }
-      this.logger_('skipTheGap_:', 'currentTime:', currentTime, 'scheduled currentTime:', scheduledCurrentTime, 'nextRange start:', nextRange.start(0)); // only seek if we still have not played
-
-      this.tech_.setCurrentTime(nextRange.start(0) + TIME_FUDGE_FACTOR);
-      this.tech_.trigger({
-        type: 'usage',
-        name: 'vhs-gap-skip'
-      });
-    }
-    gapFromVideoUnderflow_(buffered, currentTime) {
-      // At least in Chrome, if there is a gap in the video buffer, the audio will continue
-      // playing for ~3 seconds after the video gap starts. This is done to account for
-      // video buffer underflow/underrun (note that this is not done when there is audio
-      // buffer underflow/underrun -- in that case the video will stop as soon as it
-      // encounters the gap, as audio stalls are more noticeable/jarring to a user than
-      // video stalls). The player's time will reflect the playthrough of audio, so the
-      // time will appear as if we are in a buffered region, even if we are stuck in a
-      // "gap."
-      //
-      // Example:
-      // video buffer:   0 => 10.1, 10.2 => 20
-      // audio buffer:   0 => 20
-      // overall buffer: 0 => 10.1, 10.2 => 20
-      // current time: 13
-      //
-      // Chrome's video froze at 10 seconds, where the video buffer encountered the gap,
-      // however, the audio continued playing until it reached ~3 seconds past the gap
-      // (13 seconds), at which point it stops as well. Since current time is past the
-      // gap, findNextRange will return no ranges.
-      //
-      // To check for this issue, we see if there is a gap that starts somewhere within
-      // a 3 second range (3 seconds +/- 1 second) back from our current time.
-      const gaps = findGaps(buffered);
-      for (let i = 0; i < gaps.length; i++) {
-        const start = gaps.start(i);
-        const end = gaps.end(i); // gap is starts no more than 4 seconds back
-
-        if (currentTime - start < 4 && currentTime - start > 2) {
-          return {
-            start,
-            end
-          };
-        }
-      }
-      return null;
-    }
-  }
-  const defaultOptions = {
-    errorInterval: 30,
-    getSource(next) {
-      const tech = this.tech({
-        IWillNotUseThisInPlugins: true
-      });
-      const sourceObj = tech.currentSource_ || this.currentSource();
-      return next(sourceObj);
-    }
-  };
-  /**
-   * Main entry point for the plugin
-   *
-   * @param {Player} player a reference to a videojs Player instance
-   * @param {Object} [options] an object with plugin options
-   * @private
-   */
-
-  const initPlugin = function (player, options) {
-    let lastCalled = 0;
-    let seekTo = 0;
-    const localOptions = merge(defaultOptions, options);
-    player.ready(() => {
-      player.trigger({
-        type: 'usage',
-        name: 'vhs-error-reload-initialized'
-      });
-    });
-    /**
-     * Player modifications to perform that must wait until `loadedmetadata`
-     * has been triggered
-     *
-     * @private
-     */
-
-    const loadedMetadataHandler = function () {
-      if (seekTo) {
-        player.currentTime(seekTo);
-      }
-    };
-    /**
-     * Set the source on the player element, play, and seek if necessary
-     *
-     * @param {Object} sourceObj An object specifying the source url and mime-type to play
-     * @private
-     */
-
-    const setSource = function (sourceObj) {
-      if (sourceObj === null || sourceObj === undefined) {
-        return;
-      }
-      seekTo = player.duration() !== Infinity && player.currentTime() || 0;
-      player.one('loadedmetadata', loadedMetadataHandler);
-      player.src(sourceObj);
-      player.trigger({
-        type: 'usage',
-        name: 'vhs-error-reload'
-      });
-      player.play();
-    };
-    /**
-     * Attempt to get a source from either the built-in getSource function
-     * or a custom function provided via the options
-     *
-     * @private
-     */
-
-    const errorHandler = function () {
-      // Do not attempt to reload the source if a source-reload occurred before
-      // 'errorInterval' time has elapsed since the last source-reload
-      if (Date.now() - lastCalled < localOptions.errorInterval * 1000) {
-        player.trigger({
-          type: 'usage',
-          name: 'vhs-error-reload-canceled'
-        });
-        return;
-      }
-      if (!localOptions.getSource || typeof localOptions.getSource !== 'function') {
-        videojs.log.error('ERROR: reloadSourceOnError - The option getSource must be a function!');
-        return;
-      }
-      lastCalled = Date.now();
-      return localOptions.getSource.call(player, setSource);
-    };
-    /**
-     * Unbind any event handlers that were bound by the plugin
-     *
-     * @private
-     */
-
-    const cleanupEvents = function () {
-      player.off('loadedmetadata', loadedMetadataHandler);
-      player.off('error', errorHandler);
-      player.off('dispose', cleanupEvents);
-    };
-    /**
-     * Cleanup before re-initializing the plugin
-     *
-     * @param {Object} [newOptions] an object with plugin options
-     * @private
-     */
-
-    const reinitPlugin = function (newOptions) {
-      cleanupEvents();
-      initPlugin(player, newOptions);
-    };
-    player.on('error', errorHandler);
-    player.on('dispose', cleanupEvents); // Overwrite the plugin function so that we can correctly cleanup before
-    // initializing the plugin
-
-    player.reloadSourceOnError = reinitPlugin;
-  };
-  /**
-   * Reload the source when an error is detected as long as there
-   * wasn't an error previously within the last 30 seconds
-   *
-   * @param {Object} [options] an object with plugin options
-   */
-
-  const reloadSourceOnError = function (options) {
-    initPlugin(this, options);
-  };
-  var version$4 = "3.12.1";
-  var version$3 = "7.0.3";
-  var version$2 = "1.3.0";
-  var version$1 = "7.1.0";
-  var version = "4.0.1";
-
-  /**
-   * @file videojs-http-streaming.js
-   *
-   * The main file for the VHS project.
-   * License: https://github.com/videojs/videojs-http-streaming/blob/main/LICENSE
-   */
-  const Vhs = {
-    PlaylistLoader,
-    Playlist,
-    utils,
-    STANDARD_PLAYLIST_SELECTOR: lastBandwidthSelector,
-    INITIAL_PLAYLIST_SELECTOR: lowestBitrateCompatibleVariantSelector,
-    lastBandwidthSelector,
-    movingAverageBandwidthSelector,
-    comparePlaylistBandwidth,
-    comparePlaylistResolution,
-    xhr: xhrFactory()
-  }; // Define getter/setters for config properties
-
-  Object.keys(Config).forEach(prop => {
-    Object.defineProperty(Vhs, prop, {
-      get() {
-        videojs.log.warn(`using Vhs.${prop} is UNSAFE be sure you know what you are doing`);
-        return Config[prop];
-      },
-      set(value) {
-        videojs.log.warn(`using Vhs.${prop} is UNSAFE be sure you know what you are doing`);
-        if (typeof value !== 'number' || value < 0) {
-          videojs.log.warn(`value of Vhs.${prop} must be greater than or equal to 0`);
-          return;
-        }
-        Config[prop] = value;
-      }
-    });
-  });
-  const LOCAL_STORAGE_KEY = 'videojs-vhs';
-  /**
-   * Updates the selectedIndex of the QualityLevelList when a mediachange happens in vhs.
-   *
-   * @param {QualityLevelList} qualityLevels The QualityLevelList to update.
-   * @param {PlaylistLoader} playlistLoader PlaylistLoader containing the new media info.
-   * @function handleVhsMediaChange
-   */
-
-  const handleVhsMediaChange = function (qualityLevels, playlistLoader) {
-    const newPlaylist = playlistLoader.media();
-    let selectedIndex = -1;
-    for (let i = 0; i < qualityLevels.length; i++) {
-      if (qualityLevels[i].id === newPlaylist.id) {
-        selectedIndex = i;
-        break;
-      }
-    }
-    qualityLevels.selectedIndex_ = selectedIndex;
-    qualityLevels.trigger({
-      selectedIndex,
-      type: 'change'
-    });
-  };
-  /**
-   * Adds quality levels to list once playlist metadata is available
-   *
-   * @param {QualityLevelList} qualityLevels The QualityLevelList to attach events to.
-   * @param {Object} vhs Vhs object to listen to for media events.
-   * @function handleVhsLoadedMetadata
-   */
-
-  const handleVhsLoadedMetadata = function (qualityLevels, vhs) {
-    vhs.representations().forEach(rep => {
-      qualityLevels.addQualityLevel(rep);
-    });
-    handleVhsMediaChange(qualityLevels, vhs.playlists);
-  }; // VHS is a source handler, not a tech. Make sure attempts to use it
-  // as one do not cause exceptions.
-
-  Vhs.canPlaySource = function () {
-    return videojs.log.warn('VHS is no longer a tech. Please remove it from ' + 'your player\'s techOrder.');
-  };
-  const emeKeySystems = (keySystemOptions, mainPlaylist, audioPlaylist) => {
-    if (!keySystemOptions) {
-      return keySystemOptions;
-    }
-    let codecs = {};
-    if (mainPlaylist && mainPlaylist.attributes && mainPlaylist.attributes.CODECS) {
-      codecs = unwrapCodecList(parseCodecs(mainPlaylist.attributes.CODECS));
-    }
-    if (audioPlaylist && audioPlaylist.attributes && audioPlaylist.attributes.CODECS) {
-      codecs.audio = audioPlaylist.attributes.CODECS;
-    }
-    const videoContentType = getMimeForCodec(codecs.video);
-    const audioContentType = getMimeForCodec(codecs.audio); // upsert the content types based on the selected playlist
-
-    const keySystemContentTypes = {};
-    for (const keySystem in keySystemOptions) {
-      keySystemContentTypes[keySystem] = {};
-      if (audioContentType) {
-        keySystemContentTypes[keySystem].audioContentType = audioContentType;
-      }
-      if (videoContentType) {
-        keySystemContentTypes[keySystem].videoContentType = videoContentType;
-      } // Default to using the video playlist's PSSH even though they may be different, as
-      // videojs-contrib-eme will only accept one in the options.
-      //
-      // This shouldn't be an issue for most cases as early intialization will handle all
-      // unique PSSH values, and if they aren't, then encrypted events should have the
-      // specific information needed for the unique license.
-
-      if (mainPlaylist.contentProtection && mainPlaylist.contentProtection[keySystem] && mainPlaylist.contentProtection[keySystem].pssh) {
-        keySystemContentTypes[keySystem].pssh = mainPlaylist.contentProtection[keySystem].pssh;
-      } // videojs-contrib-eme accepts the option of specifying: 'com.some.cdm': 'url'
-      // so we need to prevent overwriting the URL entirely
-
-      if (typeof keySystemOptions[keySystem] === 'string') {
-        keySystemContentTypes[keySystem].url = keySystemOptions[keySystem];
-      }
-    }
-    return merge(keySystemOptions, keySystemContentTypes);
-  };
-  /**
-   * @typedef {Object} KeySystems
-   *
-   * keySystems configuration for https://github.com/videojs/videojs-contrib-eme
-   * Note: not all options are listed here.
-   *
-   * @property {Uint8Array} [pssh]
-   *           Protection System Specific Header
-   */
-
-  /**
-   * Goes through all the playlists and collects an array of KeySystems options objects
-   * containing each playlist's keySystems and their pssh values, if available.
-   *
-   * @param {Object[]} playlists
-   *        The playlists to look through
-   * @param {string[]} keySystems
-   *        The keySystems to collect pssh values for
-   *
-   * @return {KeySystems[]}
-   *         An array of KeySystems objects containing available key systems and their
-   *         pssh values
-   */
-
-  const getAllPsshKeySystemsOptions = (playlists, keySystems) => {
-    return playlists.reduce((keySystemsArr, playlist) => {
-      if (!playlist.contentProtection) {
-        return keySystemsArr;
-      }
-      const keySystemsOptions = keySystems.reduce((keySystemsObj, keySystem) => {
-        const keySystemOptions = playlist.contentProtection[keySystem];
-        if (keySystemOptions && keySystemOptions.pssh) {
-          keySystemsObj[keySystem] = {
-            pssh: keySystemOptions.pssh
-          };
-        }
-        return keySystemsObj;
-      }, {});
-      if (Object.keys(keySystemsOptions).length) {
-        keySystemsArr.push(keySystemsOptions);
-      }
-      return keySystemsArr;
-    }, []);
-  };
-  /**
-   * Returns a promise that waits for the
-   * [eme plugin](https://github.com/videojs/videojs-contrib-eme) to create a key session.
-   *
-   * Works around https://bugs.chromium.org/p/chromium/issues/detail?id=895449 in non-IE11
-   * browsers.
-   *
-   * As per the above ticket, this is particularly important for Chrome, where, if
-   * unencrypted content is appended before encrypted content and the key session has not
-   * been created, a MEDIA_ERR_DECODE will be thrown once the encrypted content is reached
-   * during playback.
-   *
-   * @param {Object} player
-   *        The player instance
-   * @param {Object[]} sourceKeySystems
-   *        The key systems options from the player source
-   * @param {Object} [audioMedia]
-   *        The active audio media playlist (optional)
-   * @param {Object[]} mainPlaylists
-   *        The playlists found on the main playlist object
-   *
-   * @return {Object}
-   *         Promise that resolves when the key session has been created
-   */
-
-  const waitForKeySessionCreation = ({
-    player,
-    sourceKeySystems,
-    audioMedia,
-    mainPlaylists
-  }) => {
-    if (!player.eme.initializeMediaKeys) {
-      return Promise.resolve();
-    } // TODO should all audio PSSH values be initialized for DRM?
-    //
-    // All unique video rendition pssh values are initialized for DRM, but here only
-    // the initial audio playlist license is initialized. In theory, an encrypted
-    // event should be fired if the user switches to an alternative audio playlist
-    // where a license is required, but this case hasn't yet been tested. In addition, there
-    // may be many alternate audio playlists unlikely to be used (e.g., multiple different
-    // languages).
-
-    const playlists = audioMedia ? mainPlaylists.concat([audioMedia]) : mainPlaylists;
-    const keySystemsOptionsArr = getAllPsshKeySystemsOptions(playlists, Object.keys(sourceKeySystems));
-    const initializationFinishedPromises = [];
-    const keySessionCreatedPromises = []; // Since PSSH values are interpreted as initData, EME will dedupe any duplicates. The
-    // only place where it should not be deduped is for ms-prefixed APIs, but
-    // the existence of modern EME APIs in addition to
-    // ms-prefixed APIs on Edge should prevent this from being a concern.
-    // initializeMediaKeys also won't use the webkit-prefixed APIs.
-
-    keySystemsOptionsArr.forEach(keySystemsOptions => {
-      keySessionCreatedPromises.push(new Promise((resolve, reject) => {
-        player.tech_.one('keysessioncreated', resolve);
-      }));
-      initializationFinishedPromises.push(new Promise((resolve, reject) => {
-        player.eme.initializeMediaKeys({
-          keySystems: keySystemsOptions
-        }, err => {
-          if (err) {
-            reject(err);
-            return;
-          }
-          resolve();
-        });
-      }));
-    }); // The reasons Promise.race is chosen over Promise.any:
-    //
-    // * Promise.any is only available in Safari 14+.
-    // * None of these promises are expected to reject. If they do reject, it might be
-    //   better here for the race to surface the rejection, rather than mask it by using
-    //   Promise.any.
-
-    return Promise.race([
-    // If a session was previously created, these will all finish resolving without
-    // creating a new session, otherwise it will take until the end of all license
-    // requests, which is why the key session check is used (to make setup much faster).
-    Promise.all(initializationFinishedPromises),
-    // Once a single session is created, the browser knows DRM will be used.
-    Promise.race(keySessionCreatedPromises)]);
-  };
-  /**
-   * If the [eme](https://github.com/videojs/videojs-contrib-eme) plugin is available, and
-   * there are keySystems on the source, sets up source options to prepare the source for
-   * eme.
-   *
-   * @param {Object} player
-   *        The player instance
-   * @param {Object[]} sourceKeySystems
-   *        The key systems options from the player source
-   * @param {Object} media
-   *        The active media playlist
-   * @param {Object} [audioMedia]
-   *        The active audio media playlist (optional)
-   *
-   * @return {boolean}
-   *         Whether or not options were configured and EME is available
-   */
-
-  const setupEmeOptions = ({
-    player,
-    sourceKeySystems,
-    media,
-    audioMedia
-  }) => {
-    const sourceOptions = emeKeySystems(sourceKeySystems, media, audioMedia);
-    if (!sourceOptions) {
-      return false;
-    }
-    player.currentSource().keySystems = sourceOptions; // eme handles the rest of the setup, so if it is missing
-    // do nothing.
-
-    if (sourceOptions && !player.eme) {
-      videojs.log.warn('DRM encrypted source cannot be decrypted without a DRM plugin');
-      return false;
-    }
-    return true;
-  };
-  const getVhsLocalStorage = () => {
-    if (!window.localStorage) {
-      return null;
-    }
-    const storedObject = window.localStorage.getItem(LOCAL_STORAGE_KEY);
-    if (!storedObject) {
-      return null;
-    }
-    try {
-      return JSON.parse(storedObject);
-    } catch (e) {
-      // someone may have tampered with the value
-      return null;
-    }
-  };
-  const updateVhsLocalStorage = options => {
-    if (!window.localStorage) {
-      return false;
-    }
-    let objectToStore = getVhsLocalStorage();
-    objectToStore = objectToStore ? merge(objectToStore, options) : options;
-    try {
-      window.localStorage.setItem(LOCAL_STORAGE_KEY, JSON.stringify(objectToStore));
-    } catch (e) {
-      // Throws if storage is full (e.g., always on iOS 5+ Safari private mode, where
-      // storage is set to 0).
-      // https://developer.mozilla.org/en-US/docs/Web/API/Storage/setItem#Exceptions
-      // No need to perform any operation.
-      return false;
-    }
-    return objectToStore;
-  };
-  /**
-   * Parses VHS-supported media types from data URIs. See
-   * https://developer.mozilla.org/en-US/docs/Web/HTTP/Basics_of_HTTP/Data_URIs
-   * for information on data URIs.
-   *
-   * @param {string} dataUri
-   *        The data URI
-   *
-   * @return {string|Object}
-   *         The parsed object/string, or the original string if no supported media type
-   *         was found
-   */
-
-  const expandDataUri = dataUri => {
-    if (dataUri.toLowerCase().indexOf('data:application/vnd.videojs.vhs+json,') === 0) {
-      return JSON.parse(dataUri.substring(dataUri.indexOf(',') + 1));
-    } // no known case for this data URI, return the string as-is
-
-    return dataUri;
-  };
-  /**
-   * Adds a request hook to an xhr object
-   *
-   * @param {Object} xhr object to add the onRequest hook to
-   * @param {function} callback hook function for an xhr request
-   */
-
-  const addOnRequestHook = (xhr, callback) => {
-    if (!xhr._requestCallbackSet) {
-      xhr._requestCallbackSet = new Set();
-    }
-    xhr._requestCallbackSet.add(callback);
-  };
-  /**
-   * Adds a response hook to an xhr object
-   *
-   * @param {Object} xhr object to add the onResponse hook to
-   * @param {function} callback hook function for an xhr response
-   */
-
-  const addOnResponseHook = (xhr, callback) => {
-    if (!xhr._responseCallbackSet) {
-      xhr._responseCallbackSet = new Set();
-    }
-    xhr._responseCallbackSet.add(callback);
-  };
-  /**
-   * Removes a request hook on an xhr object, deletes the onRequest set if empty.
-   *
-   * @param {Object} xhr object to remove the onRequest hook from
-   * @param {function} callback hook function to remove
-   */
-
-  const removeOnRequestHook = (xhr, callback) => {
-    if (!xhr._requestCallbackSet) {
-      return;
-    }
-    xhr._requestCallbackSet.delete(callback);
-    if (!xhr._requestCallbackSet.size) {
-      delete xhr._requestCallbackSet;
-    }
-  };
-  /**
-   * Removes a response hook on an xhr object, deletes the onResponse set if empty.
-   *
-   * @param {Object} xhr object to remove the onResponse hook from
-   * @param {function} callback hook function to remove
-   */
-
-  const removeOnResponseHook = (xhr, callback) => {
-    if (!xhr._responseCallbackSet) {
-      return;
-    }
-    xhr._responseCallbackSet.delete(callback);
-    if (!xhr._responseCallbackSet.size) {
-      delete xhr._responseCallbackSet;
-    }
-  };
-  /**
-   * Whether the browser has built-in HLS support.
-   */
-
-  Vhs.supportsNativeHls = function () {
-    if (!document || !document.createElement) {
-      return false;
-    }
-    const video = document.createElement('video'); // native HLS is definitely not supported if HTML5 video isn't
-
-    if (!videojs.getTech('Html5').isSupported()) {
-      return false;
-    } // HLS manifests can go by many mime-types
-
-    const canPlay = [
-    // Apple santioned
-    'application/vnd.apple.mpegurl',
-    // Apple sanctioned for backwards compatibility
-    'audio/mpegurl',
-    // Very common
-    'audio/x-mpegurl',
-    // Very common
-    'application/x-mpegurl',
-    // Included for completeness
-    'video/x-mpegurl', 'video/mpegurl', 'application/mpegurl'];
-    return canPlay.some(function (canItPlay) {
-      return /maybe|probably/i.test(video.canPlayType(canItPlay));
-    });
-  }();
-  Vhs.supportsNativeDash = function () {
-    if (!document || !document.createElement || !videojs.getTech('Html5').isSupported()) {
-      return false;
-    }
-    return /maybe|probably/i.test(document.createElement('video').canPlayType('application/dash+xml'));
-  }();
-  Vhs.supportsTypeNatively = type => {
-    if (type === 'hls') {
-      return Vhs.supportsNativeHls;
-    }
-    if (type === 'dash') {
-      return Vhs.supportsNativeDash;
-    }
-    return false;
-  };
-  /**
-   * VHS is a source handler, not a tech. Make sure attempts to use it
-   * as one do not cause exceptions.
-   */
-
-  Vhs.isSupported = function () {
-    return videojs.log.warn('VHS is no longer a tech. Please remove it from ' + 'your player\'s techOrder.');
-  };
-  /**
-   * A global function for setting an onRequest hook
-   *
-   * @param {function} callback for request modifiction
-   */
-
-  Vhs.xhr.onRequest = function (callback) {
-    addOnRequestHook(Vhs.xhr, callback);
-  };
-  /**
-   * A global function for setting an onResponse hook
-   *
-   * @param {callback} callback for response data retrieval
-   */
-
-  Vhs.xhr.onResponse = function (callback) {
-    addOnResponseHook(Vhs.xhr, callback);
-  };
-  /**
-   * Deletes a global onRequest callback if it exists
-   *
-   * @param {function} callback to delete from the global set
-   */
-
-  Vhs.xhr.offRequest = function (callback) {
-    removeOnRequestHook(Vhs.xhr, callback);
-  };
-  /**
-   * Deletes a global onResponse callback if it exists
-   *
-   * @param {function} callback to delete from the global set
-   */
-
-  Vhs.xhr.offResponse = function (callback) {
-    removeOnResponseHook(Vhs.xhr, callback);
-  };
-  const Component = videojs.getComponent('Component');
-  /**
-   * The Vhs Handler object, where we orchestrate all of the parts
-   * of VHS to interact with video.js
-   *
-   * @class VhsHandler
-   * @extends videojs.Component
-   * @param {Object} source the soruce object
-   * @param {Tech} tech the parent tech object
-   * @param {Object} options optional and required options
-   */
-
-  class VhsHandler extends Component {
-    constructor(source, tech, options) {
-      super(tech, options.vhs); // if a tech level `initialBandwidth` option was passed
-      // use that over the VHS level `bandwidth` option
-
-      if (typeof options.initialBandwidth === 'number') {
-        this.options_.bandwidth = options.initialBandwidth;
-      }
-      this.logger_ = logger('VhsHandler'); // we need access to the player in some cases,
-      // so, get it from Video.js via the `playerId`
-
-      if (tech.options_ && tech.options_.playerId) {
-        const _player = videojs.getPlayer(tech.options_.playerId);
-        this.player_ = _player;
-      }
-      this.tech_ = tech;
-      this.source_ = source;
-      this.stats = {};
-      this.ignoreNextSeekingEvent_ = false;
-      this.setOptions_();
-      if (this.options_.overrideNative && tech.overrideNativeAudioTracks && tech.overrideNativeVideoTracks) {
-        tech.overrideNativeAudioTracks(true);
-        tech.overrideNativeVideoTracks(true);
-      } else if (this.options_.overrideNative && (tech.featuresNativeVideoTracks || tech.featuresNativeAudioTracks)) {
-        // overriding native VHS only works if audio tracks have been emulated
-        // error early if we're misconfigured
-        throw new Error('Overriding native VHS requires emulated tracks. ' + 'See https://git.io/vMpjB');
-      } // listen for fullscreenchange events for this player so that we
-      // can adjust our quality selection quickly
-
-      this.on(document, ['fullscreenchange', 'webkitfullscreenchange', 'mozfullscreenchange', 'MSFullscreenChange'], event => {
-        const fullscreenElement = document.fullscreenElement || document.webkitFullscreenElement || document.mozFullScreenElement || document.msFullscreenElement;
-        if (fullscreenElement && fullscreenElement.contains(this.tech_.el())) {
-          this.playlistController_.fastQualityChange_();
-        } else {
-          // When leaving fullscreen, since the in page pixel dimensions should be smaller
-          // than full screen, see if there should be a rendition switch down to preserve
-          // bandwidth.
-          this.playlistController_.checkABR_();
-        }
-      });
-      this.on(this.tech_, 'seeking', function () {
-        if (this.ignoreNextSeekingEvent_) {
-          this.ignoreNextSeekingEvent_ = false;
-          return;
-        }
-        this.setCurrentTime(this.tech_.currentTime());
-      });
-      this.on(this.tech_, 'error', function () {
-        // verify that the error was real and we are loaded
-        // enough to have pc loaded.
-        if (this.tech_.error() && this.playlistController_) {
-          this.playlistController_.pauseLoading();
-        }
-      });
-      this.on(this.tech_, 'play', this.play);
-    }
-    /**
-     * Set VHS options based on options from configuration, as well as partial
-     * options to be passed at a later time.
-     *
-     * @param {Object} options A partial chunk of config options
-     */
-
-    setOptions_(options = {}) {
-      this.options_ = merge(this.options_, options); // defaults
-
-      this.options_.withCredentials = this.options_.withCredentials || false;
-      this.options_.limitRenditionByPlayerDimensions = this.options_.limitRenditionByPlayerDimensions === false ? false : true;
-      this.options_.useDevicePixelRatio = this.options_.useDevicePixelRatio || false;
-      this.options_.useBandwidthFromLocalStorage = typeof this.source_.useBandwidthFromLocalStorage !== 'undefined' ? this.source_.useBandwidthFromLocalStorage : this.options_.useBandwidthFromLocalStorage || false;
-      this.options_.useForcedSubtitles = this.options_.useForcedSubtitles || false;
-      this.options_.useNetworkInformationApi = this.options_.useNetworkInformationApi || false;
-      this.options_.useDtsForTimestampOffset = this.options_.useDtsForTimestampOffset || false;
-      this.options_.customTagParsers = this.options_.customTagParsers || [];
-      this.options_.customTagMappers = this.options_.customTagMappers || [];
-      this.options_.cacheEncryptionKeys = this.options_.cacheEncryptionKeys || false;
-      this.options_.llhls = this.options_.llhls === false ? false : true;
-      this.options_.bufferBasedABR = this.options_.bufferBasedABR || false;
-      if (typeof this.options_.playlistExclusionDuration !== 'number') {
-        this.options_.playlistExclusionDuration = 60;
-      }
-      if (typeof this.options_.bandwidth !== 'number') {
-        if (this.options_.useBandwidthFromLocalStorage) {
-          const storedObject = getVhsLocalStorage();
-          if (storedObject && storedObject.bandwidth) {
-            this.options_.bandwidth = storedObject.bandwidth;
-            this.tech_.trigger({
-              type: 'usage',
-              name: 'vhs-bandwidth-from-local-storage'
-            });
-          }
-          if (storedObject && storedObject.throughput) {
-            this.options_.throughput = storedObject.throughput;
-            this.tech_.trigger({
-              type: 'usage',
-              name: 'vhs-throughput-from-local-storage'
-            });
-          }
-        }
-      } // if bandwidth was not set by options or pulled from local storage, start playlist
-      // selection at a reasonable bandwidth
-
-      if (typeof this.options_.bandwidth !== 'number') {
-        this.options_.bandwidth = Config.INITIAL_BANDWIDTH;
-      } // If the bandwidth number is unchanged from the initial setting
-      // then this takes precedence over the enableLowInitialPlaylist option
-
-      this.options_.enableLowInitialPlaylist = this.options_.enableLowInitialPlaylist && this.options_.bandwidth === Config.INITIAL_BANDWIDTH; // grab options passed to player.src
-
-      ['withCredentials', 'useDevicePixelRatio', 'customPixelRatio', 'limitRenditionByPlayerDimensions', 'bandwidth', 'customTagParsers', 'customTagMappers', 'cacheEncryptionKeys', 'playlistSelector', 'initialPlaylistSelector', 'bufferBasedABR', 'liveRangeSafeTimeDelta', 'llhls', 'useForcedSubtitles', 'useNetworkInformationApi', 'useDtsForTimestampOffset', 'exactManifestTimings', 'leastPixelDiffSelector'].forEach(option => {
-        if (typeof this.source_[option] !== 'undefined') {
-          this.options_[option] = this.source_[option];
-        }
-      });
-      this.limitRenditionByPlayerDimensions = this.options_.limitRenditionByPlayerDimensions;
-      this.useDevicePixelRatio = this.options_.useDevicePixelRatio;
-      const customPixelRatio = this.options_.customPixelRatio; // Ensure the custom pixel ratio is a number greater than or equal to 0
-
-      if (typeof customPixelRatio === 'number' && customPixelRatio >= 0) {
-        this.customPixelRatio = customPixelRatio;
-      }
-    } // alias for public method to set options
-
-    setOptions(options = {}) {
-      this.setOptions_(options);
-    }
-    /**
-     * called when player.src gets called, handle a new source
-     *
-     * @param {Object} src the source object to handle
-     */
-
-    src(src, type) {
-      // do nothing if the src is falsey
-      if (!src) {
-        return;
-      }
-      this.setOptions_(); // add main playlist controller options
-
-      this.options_.src = expandDataUri(this.source_.src);
-      this.options_.tech = this.tech_;
-      this.options_.externVhs = Vhs;
-      this.options_.sourceType = simpleTypeFromSourceType(type); // Whenever we seek internally, we should update the tech
-
-      this.options_.seekTo = time => {
-        this.tech_.setCurrentTime(time);
-      };
-      this.playlistController_ = new PlaylistController(this.options_);
-      const playbackWatcherOptions = merge({
-        liveRangeSafeTimeDelta: SAFE_TIME_DELTA
-      }, this.options_, {
-        seekable: () => this.seekable(),
-        media: () => this.playlistController_.media(),
-        playlistController: this.playlistController_
-      });
-      this.playbackWatcher_ = new PlaybackWatcher(playbackWatcherOptions);
-      this.playlistController_.on('error', () => {
-        const player = videojs.players[this.tech_.options_.playerId];
-        let error = this.playlistController_.error;
-        if (typeof error === 'object' && !error.code) {
-          error.code = 3;
-        } else if (typeof error === 'string') {
-          error = {
-            message: error,
-            code: 3
-          };
-        }
-        player.error(error);
-      });
-      const defaultSelector = this.options_.bufferBasedABR ? Vhs.movingAverageBandwidthSelector(0.55) : Vhs.STANDARD_PLAYLIST_SELECTOR; // `this` in selectPlaylist should be the VhsHandler for backwards
-      // compatibility with < v2
-
-      this.playlistController_.selectPlaylist = this.selectPlaylist ? this.selectPlaylist.bind(this) : defaultSelector.bind(this);
-      this.playlistController_.selectInitialPlaylist = Vhs.INITIAL_PLAYLIST_SELECTOR.bind(this); // re-expose some internal objects for backwards compatibility with < v2
-
-      this.playlists = this.playlistController_.mainPlaylistLoader_;
-      this.mediaSource = this.playlistController_.mediaSource; // Proxy assignment of some properties to the main playlist
-      // controller. Using a custom property for backwards compatibility
-      // with < v2
-
-      Object.defineProperties(this, {
-        selectPlaylist: {
-          get() {
-            return this.playlistController_.selectPlaylist;
-          },
-          set(selectPlaylist) {
-            this.playlistController_.selectPlaylist = selectPlaylist.bind(this);
-          }
-        },
-        throughput: {
-          get() {
-            return this.playlistController_.mainSegmentLoader_.throughput.rate;
-          },
-          set(throughput) {
-            this.playlistController_.mainSegmentLoader_.throughput.rate = throughput; // By setting `count` to 1 the throughput value becomes the starting value
-            // for the cumulative average
-
-            this.playlistController_.mainSegmentLoader_.throughput.count = 1;
-          }
-        },
-        bandwidth: {
-          get() {
-            let playerBandwidthEst = this.playlistController_.mainSegmentLoader_.bandwidth;
-            const networkInformation = window.navigator.connection || window.navigator.mozConnection || window.navigator.webkitConnection;
-            const tenMbpsAsBitsPerSecond = 10e6;
-            if (this.options_.useNetworkInformationApi && networkInformation) {
-              // downlink returns Mbps
-              // https://developer.mozilla.org/en-US/docs/Web/API/NetworkInformation/downlink
-              const networkInfoBandwidthEstBitsPerSec = networkInformation.downlink * 1000 * 1000; // downlink maxes out at 10 Mbps. In the event that both networkInformationApi and the player
-              // estimate a bandwidth greater than 10 Mbps, use the larger of the two estimates to ensure that
-              // high quality streams are not filtered out.
-
-              if (networkInfoBandwidthEstBitsPerSec >= tenMbpsAsBitsPerSecond && playerBandwidthEst >= tenMbpsAsBitsPerSecond) {
-                playerBandwidthEst = Math.max(playerBandwidthEst, networkInfoBandwidthEstBitsPerSec);
-              } else {
-                playerBandwidthEst = networkInfoBandwidthEstBitsPerSec;
-              }
-            }
-            return playerBandwidthEst;
-          },
-          set(bandwidth) {
-            this.playlistController_.mainSegmentLoader_.bandwidth = bandwidth; // setting the bandwidth manually resets the throughput counter
-            // `count` is set to zero that current value of `rate` isn't included
-            // in the cumulative average
-
-            this.playlistController_.mainSegmentLoader_.throughput = {
-              rate: 0,
-              count: 0
-            };
-          }
-        },
-        /**
-         * `systemBandwidth` is a combination of two serial processes bit-rates. The first
-         * is the network bitrate provided by `bandwidth` and the second is the bitrate of
-         * the entire process after that - decryption, transmuxing, and appending - provided
-         * by `throughput`.
-         *
-         * Since the two process are serial, the overall system bandwidth is given by:
-         *   sysBandwidth = 1 / (1 / bandwidth + 1 / throughput)
-         */
-        systemBandwidth: {
-          get() {
-            const invBandwidth = 1 / (this.bandwidth || 1);
-            let invThroughput;
-            if (this.throughput > 0) {
-              invThroughput = 1 / this.throughput;
-            } else {
-              invThroughput = 0;
-            }
-            const systemBitrate = Math.floor(1 / (invBandwidth + invThroughput));
-            return systemBitrate;
-          },
-          set() {
-            videojs.log.error('The "systemBandwidth" property is read-only');
-          }
-        }
-      });
-      if (this.options_.bandwidth) {
-        this.bandwidth = this.options_.bandwidth;
-      }
-      if (this.options_.throughput) {
-        this.throughput = this.options_.throughput;
-      }
-      Object.defineProperties(this.stats, {
-        bandwidth: {
-          get: () => this.bandwidth || 0,
-          enumerable: true
-        },
-        mediaRequests: {
-          get: () => this.playlistController_.mediaRequests_() || 0,
-          enumerable: true
-        },
-        mediaRequestsAborted: {
-          get: () => this.playlistController_.mediaRequestsAborted_() || 0,
-          enumerable: true
-        },
-        mediaRequestsTimedout: {
-          get: () => this.playlistController_.mediaRequestsTimedout_() || 0,
-          enumerable: true
-        },
-        mediaRequestsErrored: {
-          get: () => this.playlistController_.mediaRequestsErrored_() || 0,
-          enumerable: true
-        },
-        mediaTransferDuration: {
-          get: () => this.playlistController_.mediaTransferDuration_() || 0,
-          enumerable: true
-        },
-        mediaBytesTransferred: {
-          get: () => this.playlistController_.mediaBytesTransferred_() || 0,
-          enumerable: true
-        },
-        mediaSecondsLoaded: {
-          get: () => this.playlistController_.mediaSecondsLoaded_() || 0,
-          enumerable: true
-        },
-        mediaAppends: {
-          get: () => this.playlistController_.mediaAppends_() || 0,
-          enumerable: true
-        },
-        mainAppendsToLoadedData: {
-          get: () => this.playlistController_.mainAppendsToLoadedData_() || 0,
-          enumerable: true
-        },
-        audioAppendsToLoadedData: {
-          get: () => this.playlistController_.audioAppendsToLoadedData_() || 0,
-          enumerable: true
-        },
-        appendsToLoadedData: {
-          get: () => this.playlistController_.appendsToLoadedData_() || 0,
-          enumerable: true
-        },
-        timeToLoadedData: {
-          get: () => this.playlistController_.timeToLoadedData_() || 0,
-          enumerable: true
-        },
-        buffered: {
-          get: () => timeRangesToArray(this.tech_.buffered()),
-          enumerable: true
-        },
-        currentTime: {
-          get: () => this.tech_.currentTime(),
-          enumerable: true
-        },
-        currentSource: {
-          get: () => this.tech_.currentSource_,
-          enumerable: true
-        },
-        currentTech: {
-          get: () => this.tech_.name_,
-          enumerable: true
-        },
-        duration: {
-          get: () => this.tech_.duration(),
-          enumerable: true
-        },
-        main: {
-          get: () => this.playlists.main,
-          enumerable: true
-        },
-        playerDimensions: {
-          get: () => this.tech_.currentDimensions(),
-          enumerable: true
-        },
-        seekable: {
-          get: () => timeRangesToArray(this.tech_.seekable()),
-          enumerable: true
-        },
-        timestamp: {
-          get: () => Date.now(),
-          enumerable: true
-        },
-        videoPlaybackQuality: {
-          get: () => this.tech_.getVideoPlaybackQuality(),
-          enumerable: true
-        }
-      });
-      this.tech_.one('canplay', this.playlistController_.setupFirstPlay.bind(this.playlistController_));
-      this.tech_.on('bandwidthupdate', () => {
-        if (this.options_.useBandwidthFromLocalStorage) {
-          updateVhsLocalStorage({
-            bandwidth: this.bandwidth,
-            throughput: Math.round(this.throughput)
-          });
-        }
-      });
-      this.playlistController_.on('selectedinitialmedia', () => {
-        // Add the manual rendition mix-in to VhsHandler
-        renditionSelectionMixin(this);
-      });
-      this.playlistController_.sourceUpdater_.on('createdsourcebuffers', () => {
-        this.setupEme_();
-      }); // the bandwidth of the primary segment loader is our best
-      // estimate of overall bandwidth
-
-      this.on(this.playlistController_, 'progress', function () {
-        this.tech_.trigger('progress');
-      }); // In the live case, we need to ignore the very first `seeking` event since
-      // that will be the result of the seek-to-live behavior
-
-      this.on(this.playlistController_, 'firstplay', function () {
-        this.ignoreNextSeekingEvent_ = true;
-      });
-      this.setupQualityLevels_(); // do nothing if the tech has been disposed already
-      // this can occur if someone sets the src in player.ready(), for instance
-
-      if (!this.tech_.el()) {
-        return;
-      }
-      this.mediaSourceUrl_ = window.URL.createObjectURL(this.playlistController_.mediaSource);
-      this.tech_.src(this.mediaSourceUrl_);
-    }
-    createKeySessions_() {
-      const audioPlaylistLoader = this.playlistController_.mediaTypes_.AUDIO.activePlaylistLoader;
-      this.logger_('waiting for EME key session creation');
-      waitForKeySessionCreation({
-        player: this.player_,
-        sourceKeySystems: this.source_.keySystems,
-        audioMedia: audioPlaylistLoader && audioPlaylistLoader.media(),
-        mainPlaylists: this.playlists.main.playlists
-      }).then(() => {
-        this.logger_('created EME key session');
-        this.playlistController_.sourceUpdater_.initializedEme();
-      }).catch(err => {
-        this.logger_('error while creating EME key session', err);
-        this.player_.error({
-          message: 'Failed to initialize media keys for EME',
-          code: 3,
-          metadata: {
-            errorType: videojs.Error.EMEKeySessionCreationError
-          }
-        });
-      });
-    }
-    handleWaitingForKey_() {
-      // If waitingforkey is fired, it's possible that the data that's necessary to retrieve
-      // the key is in the manifest. While this should've happened on initial source load, it
-      // may happen again in live streams where the keys change, and the manifest info
-      // reflects the update.
-      //
-      // Because videojs-contrib-eme compares the PSSH data we send to that of PSSH data it's
-      // already requested keys for, we don't have to worry about this generating extraneous
-      // requests.
-      this.logger_('waitingforkey fired, attempting to create any new key sessions');
-      this.createKeySessions_();
-    }
-    /**
-     * If necessary and EME is available, sets up EME options and waits for key session
-     * creation.
-     *
-     * This function also updates the source updater so taht it can be used, as for some
-     * browsers, EME must be configured before content is appended (if appending unencrypted
-     * content before encrypted content).
-     */
-
-    setupEme_() {
-      const audioPlaylistLoader = this.playlistController_.mediaTypes_.AUDIO.activePlaylistLoader;
-      const didSetupEmeOptions = setupEmeOptions({
-        player: this.player_,
-        sourceKeySystems: this.source_.keySystems,
-        media: this.playlists.media(),
-        audioMedia: audioPlaylistLoader && audioPlaylistLoader.media()
-      });
-      this.player_.tech_.on('keystatuschange', e => {
-        this.playlistController_.updatePlaylistByKeyStatus(e.keyId, e.status);
-      });
-      this.handleWaitingForKey_ = this.handleWaitingForKey_.bind(this);
-      this.player_.tech_.on('waitingforkey', this.handleWaitingForKey_);
-      if (!didSetupEmeOptions) {
-        // If EME options were not set up, we've done all we could to initialize EME.
-        this.playlistController_.sourceUpdater_.initializedEme();
-        return;
-      }
-      this.createKeySessions_();
-    }
-    /**
-     * Initializes the quality levels and sets listeners to update them.
-     *
-     * @method setupQualityLevels_
-     * @private
-     */
-
-    setupQualityLevels_() {
-      const player = videojs.players[this.tech_.options_.playerId]; // if there isn't a player or there isn't a qualityLevels plugin
-      // or qualityLevels_ listeners have already been setup, do nothing.
-
-      if (!player || !player.qualityLevels || this.qualityLevels_) {
-        return;
-      }
-      this.qualityLevels_ = player.qualityLevels();
-      this.playlistController_.on('selectedinitialmedia', () => {
-        handleVhsLoadedMetadata(this.qualityLevels_, this);
-      });
-      this.playlists.on('mediachange', () => {
-        handleVhsMediaChange(this.qualityLevels_, this.playlists);
-      });
-    }
-    /**
-     * return the version
-     */
-
-    static version() {
-      return {
-        '@videojs/http-streaming': version$4,
-        'mux.js': version$3,
-        'mpd-parser': version$2,
-        'm3u8-parser': version$1,
-        'aes-decrypter': version
-      };
-    }
-    /**
-     * return the version
-     */
-
-    version() {
-      return this.constructor.version();
-    }
-    canChangeType() {
-      return SourceUpdater.canChangeType();
-    }
-    /**
-     * Begin playing the video.
-     */
-
-    play() {
-      this.playlistController_.play();
-    }
-    /**
-     * a wrapper around the function in PlaylistController
-     */
-
-    setCurrentTime(currentTime) {
-      this.playlistController_.setCurrentTime(currentTime);
-    }
-    /**
-     * a wrapper around the function in PlaylistController
-     */
-
-    duration() {
-      return this.playlistController_.duration();
-    }
-    /**
-     * a wrapper around the function in PlaylistController
-     */
-
-    seekable() {
-      return this.playlistController_.seekable();
-    }
-    /**
-     * Abort all outstanding work and cleanup.
-     */
-
-    dispose() {
-      if (this.playbackWatcher_) {
-        this.playbackWatcher_.dispose();
-      }
-      if (this.playlistController_) {
-        this.playlistController_.dispose();
-      }
-      if (this.qualityLevels_) {
-        this.qualityLevels_.dispose();
-      }
-      if (this.tech_ && this.tech_.vhs) {
-        delete this.tech_.vhs;
-      }
-      if (this.mediaSourceUrl_ && window.URL.revokeObjectURL) {
-        window.URL.revokeObjectURL(this.mediaSourceUrl_);
-        this.mediaSourceUrl_ = null;
-      }
-      if (this.tech_) {
-        this.tech_.off('waitingforkey', this.handleWaitingForKey_);
-      }
-      super.dispose();
-    }
-    convertToProgramTime(time, callback) {
-      return getProgramTime({
-        playlist: this.playlistController_.media(),
-        time,
-        callback
-      });
-    } // the player must be playing before calling this
-
-    seekToProgramTime(programTime, callback, pauseAfterSeek = true, retryCount = 2) {
-      return seekToProgramTime({
-        programTime,
-        playlist: this.playlistController_.media(),
-        retryCount,
-        pauseAfterSeek,
-        seekTo: this.options_.seekTo,
-        tech: this.options_.tech,
-        callback
-      });
-    }
-    /**
-     * Adds the onRequest, onResponse, offRequest and offResponse functions
-     * to the VhsHandler xhr Object.
-     */
-
-    setupXhrHooks_() {
-      /**
-       * A player function for setting an onRequest hook
-       *
-       * @param {function} callback for request modifiction
-       */
-      this.xhr.onRequest = callback => {
-        addOnRequestHook(this.xhr, callback);
-      };
-      /**
-       * A player function for setting an onResponse hook
-       *
-       * @param {callback} callback for response data retrieval
-       */
-
-      this.xhr.onResponse = callback => {
-        addOnResponseHook(this.xhr, callback);
-      };
-      /**
-       * Deletes a player onRequest callback if it exists
-       *
-       * @param {function} callback to delete from the player set
-       */
-
-      this.xhr.offRequest = callback => {
-        removeOnRequestHook(this.xhr, callback);
-      };
-      /**
-       * Deletes a player onResponse callback if it exists
-       *
-       * @param {function} callback to delete from the player set
-       */
-
-      this.xhr.offResponse = callback => {
-        removeOnResponseHook(this.xhr, callback);
-      }; // Trigger an event on the player to notify the user that vhs is ready to set xhr hooks.
-      // This allows hooks to be set before the source is set to vhs when handleSource is called.
-
-      this.player_.trigger('xhr-hooks-ready');
-    }
-  }
-  /**
-   * The Source Handler object, which informs video.js what additional
-   * MIME types are supported and sets up playback. It is registered
-   * automatically to the appropriate tech based on the capabilities of
-   * the browser it is running in. It is not necessary to use or modify
-   * this object in normal usage.
-   */
-
-  const VhsSourceHandler = {
-    name: 'videojs-http-streaming',
-    VERSION: version$4,
-    canHandleSource(srcObj, options = {}) {
-      const localOptions = merge(videojs.options, options);
-      return VhsSourceHandler.canPlayType(srcObj.type, localOptions);
-    },
-    handleSource(source, tech, options = {}) {
-      const localOptions = merge(videojs.options, options);
-      tech.vhs = new VhsHandler(source, tech, localOptions);
-      tech.vhs.xhr = xhrFactory();
-      tech.vhs.setupXhrHooks_();
-      tech.vhs.src(source.src, source.type);
-      return tech.vhs;
-    },
-    canPlayType(type, options) {
-      const simpleType = simpleTypeFromSourceType(type);
-      if (!simpleType) {
-        return '';
-      }
-      const overrideNative = VhsSourceHandler.getOverrideNative(options);
-      const supportsTypeNatively = Vhs.supportsTypeNatively(simpleType);
-      const canUseMsePlayback = !supportsTypeNatively || overrideNative;
-      return canUseMsePlayback ? 'maybe' : '';
-    },
-    getOverrideNative(options = {}) {
-      const {
-        vhs = {}
-      } = options;
-      const defaultOverrideNative = !(videojs.browser.IS_ANY_SAFARI || videojs.browser.IS_IOS);
-      const {
-        overrideNative = defaultOverrideNative
-      } = vhs;
-      return overrideNative;
-    }
-  };
-  /**
-   * Check to see if the native MediaSource object exists and supports
-   * an MP4 container with both H.264 video and AAC-LC audio.
-   *
-   * @return {boolean} if  native media sources are supported
-   */
-
-  const supportsNativeMediaSources = () => {
-    return browserSupportsCodec('avc1.4d400d,mp4a.40.2');
-  }; // register source handlers with the appropriate techs
-
-  if (supportsNativeMediaSources()) {
-    videojs.getTech('Html5').registerSourceHandler(VhsSourceHandler, 0);
-  }
-  videojs.VhsHandler = VhsHandler;
-  videojs.VhsSourceHandler = VhsSourceHandler;
-  videojs.Vhs = Vhs;
-  if (!videojs.use) {
-    videojs.registerComponent('Vhs', Vhs);
-  }
-  videojs.options.vhs = videojs.options.vhs || {};
-  if (!videojs.getPlugin || !videojs.getPlugin('reloadSourceOnError')) {
-    videojs.registerPlugin('reloadSourceOnError', reloadSourceOnError);
-  }
-
-  videojs.DomData = DomData;
-  videojs.log.level('debug');
-
-  return videojs;
-
-}));