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+/**
+ * @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>
+ */
+
+'use strict';
+
+var window$1 = require('global/window');
+var document = require('global/document');
+var keycode = require('keycode');
+var safeParseTuple = require('safe-json-parse/tuple');
+var XHR = require('@videojs/xhr');
+var vtt = require('videojs-vtt.js');
+var _extends = require('@babel/runtime/helpers/extends');
+var _resolveUrl = require('@videojs/vhs-utils/cjs/resolve-url.js');
+var m3u8Parser = require('m3u8-parser');
+var codecs_js = require('@videojs/vhs-utils/cjs/codecs.js');
+var mediaTypes_js = require('@videojs/vhs-utils/cjs/media-types.js');
+var byteHelpers = require('@videojs/vhs-utils/cjs/byte-helpers');
+var mpdParser = require('mpd-parser');
+var parseSidx = require('mux.js/lib/tools/parse-sidx');
+var id3Helpers = require('@videojs/vhs-utils/cjs/id3-helpers');
+var containers = require('@videojs/vhs-utils/cjs/containers');
+var clock = require('mux.js/lib/utils/clock');
+
+function _interopDefaultLegacy (e) { return e && typeof e === 'object' && 'default' in e ? e : { 'default': e }; }
+
+var window__default = /*#__PURE__*/_interopDefaultLegacy(window$1);
+var document__default = /*#__PURE__*/_interopDefaultLegacy(document);
+var keycode__default = /*#__PURE__*/_interopDefaultLegacy(keycode);
+var safeParseTuple__default = /*#__PURE__*/_interopDefaultLegacy(safeParseTuple);
+var XHR__default = /*#__PURE__*/_interopDefaultLegacy(XHR);
+var vtt__default = /*#__PURE__*/_interopDefaultLegacy(vtt);
+var _extends__default = /*#__PURE__*/_interopDefaultLegacy(_extends);
+var _resolveUrl__default = /*#__PURE__*/_interopDefaultLegacy(_resolveUrl);
+var parseSidx__default = /*#__PURE__*/_interopDefaultLegacy(parseSidx);
+
+var version$6 = "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__default["default"]) {
+    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__default["default"].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__default["default"].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__default["default"].console.info || window__default["default"].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__default["default"].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 = 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(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(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(value) && toString.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$1(...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$1(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(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,
+  isPlain: isPlain,
+  merge: merge$1,
+  values: values,
+  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__default["default"] || window__default["default"].navigator.maxTouchPoints || window__default["default"].DocumentTouch && window__default["default"].document instanceof window__default["default"].DocumentTouch));
+const UAD = window__default["default"].navigator && window__default["default"].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__default["default"].navigator && window__default["default"].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__default["default"] === window__default["default"].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(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__default["default"].parent !== window__default["default"].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__default["default"][method](null);
+    }
+    if (isNonBlankString(context)) {
+      context = document__default["default"].querySelector(context);
+    }
+    const ctx = isEl(context) ? context : document__default["default"];
+    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__default["default"].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__default["default"].body.focus();
+  document__default["default"].onselectstart = function () {
+    return false;
+  };
+}
+
+/**
+ * Turn off text selection blocking.
+ */
+function unblockTextSelection() {
+  document__default["default"].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__default["default"][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(value) {
+  return isObject(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(value)) {
+      return value;
+    }
+    if (typeof value === 'string' && /\S/.test(value)) {
+      return document__default["default"].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__default["default"].getComputedStyle === 'function') {
+    let computedStyleValue;
+    try {
+      computedStyleValue = window__default["default"].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__default["default"].styleSheets].forEach(styleSheet => {
+    try {
+      const cssRules = [...styleSheet.cssRules].map(rule => rule.cssText).join('');
+      const style = document__default["default"].createElement('style');
+      style.textContent = cssRules;
+      win.document.head.appendChild(style);
+    } catch (e) {
+      const link = document__default["default"].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,
+  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__default["default"].getElementsByTagName('video'));
+  const audios = Array.prototype.slice.call(document__default["default"].getElementsByTagName('audio'));
+  const divs = Array.prototype.slice.call(document__default["default"].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__default["default"].setTimeout(autoSetup, wait);
+}
+
+/**
+ * Used to set the internal tracking of window loaded state to true.
+ *
+ * @private
+ */
+function setWindowLoaded() {
+  _windowLoaded = true;
+  window__default["default"].removeEventListener('load', setWindowLoaded);
+}
+if (isReal()) {
+  if (document__default["default"].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__default["default"].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__default["default"].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__default["default"].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__default["default"];
+    }
+
+    // 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__default["default"].documentElement;
+      const body = document__default["default"].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__default["default"].addEventListener('test', null, opts);
+      window__default["default"].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__default["default"].performance.now();
+  const throttled = function (...args) {
+    const now = window__default["default"].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__default["default"]) {
+  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__default["default"].clearTimeout(oldTimeout);
+    const timeout = window__default["default"].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__default["default"].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
+});
+
+/**
+ * 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$1({}, this.options_);
+
+    // Updated options with supplied options
+    options = this.options_ = merge$1(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$1(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__default["default"].createElementNS(xmlnsURL, 'svg');
+    svgEl.setAttributeNS(null, 'viewBox', '0 0 512 512');
+    const useEl = document__default["default"].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__default["default"].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__default["default"].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__default["default"].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__default["default"].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__default["default"].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__default["default"].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__default["default"].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__default["default"].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__default["default"].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__default["default"].Symbol && window__default["default"].Symbol.iterator) {
+    timeRangesObj[window__default["default"].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(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;
+
+/**
+ * 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__default["default"].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__default["default"].isEventKey(event, 'Escape') && this.closeable()) {
+      event.preventDefault();
+      this.close();
+      return;
+    }
+
+    // exit early if it isn't a tab key
+    if (!keycode__default["default"].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__default["default"].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__default["default"].HTMLAnchorElement || child instanceof window__default["default"].HTMLAreaElement) && child.hasAttribute('href') || (child instanceof window__default["default"].HTMLInputElement || child instanceof window__default["default"].HTMLSelectElement || child instanceof window__default["default"].HTMLTextAreaElement || child instanceof window__default["default"].HTMLButtonElement) && !child.hasAttribute('disabled') || child instanceof window__default["default"].HTMLIFrameElement || child instanceof window__default["default"].HTMLObjectElement || child instanceof window__default["default"].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__default["default"].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$/, '');
+  }
+  if (!details.protocol) {
+    details.protocol = window__default["default"].location.protocol;
+  }
+
+  /* istanbul ignore if */
+  if (!details.host) {
+    details.host = window__default["default"].location.host;
+  }
+  return details;
+};
+
+/**
+ * Get absolute version of relative URL.
+ *
+ * @function
+ * @param    {string} url
+ *           URL to make absolute
+ *
+ * @return   {string}
+ *           Absolute URL
+ *
+ * @see      http://stackoverflow.com/questions/470832/getting-an-absolute-url-from-a-relative-one-ie6-issue
+ */
+const getAbsoluteURL = function (url) {
+  // Check if absolute URL
+  if (!url.match(/^https?:\/\//)) {
+    // Add the url to an anchor and let the browser parse it to convert to an absolute url
+    const a = document__default["default"].createElement('a');
+    a.href = url;
+    url = a.href;
+  }
+  return url;
+};
+
+/**
+ * Returns the extension of the passed file name. It will return an empty string
+ * if passed an invalid path.
+ *
+ * @function
+ * @param    {string} path
+ *           The fileName path like '/path/to/file.mp4'
+ *
+ * @return  {string}
+ *           The extension in lower case or an empty string if no
+ *           extension could be found.
+ */
+const getFileExtension = function (path) {
+  if (typeof path === 'string') {
+    const splitPathRe = /^(\/?)([\s\S]*?)((?:\.{1,2}|[^\/]+?)(\.([^\.\/\?]+)))(?:[\/]*|[\?].*)$/;
+    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__default["default"].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
+});
+
+/**
+ * @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__default["default"].WebVTT.Parser(window__default["default"], window__default["default"].vttjs, window__default["default"].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__default["default"].console && window__default["default"].console.groupCollapsed) {
+      window__default["default"].console.groupCollapsed(`Text Track parsing errors for ${track.src}`);
+    }
+    errors.forEach(error => log$1.error(error));
+    if (window__default["default"].console && window__default["default"].console.groupEnd) {
+      window__default["default"].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;
+  }
+  XHR__default["default"](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__default["default"].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$1(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__default["default"].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$1(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$1(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);
+
+/**
+ * @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__default["default"].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__default["default"].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(vtt__default["default"]) && Object.keys(vtt__default["default"]).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__default["default"].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__default["default"].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$1(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__default["default"] && window__default["default"].videojs && window__default["default"].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__default["default"].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(srcobj)) {
+        newsrc.push(srcobj);
+      }
+    });
+    src = newsrc;
+  } else if (typeof src === 'string' && src.trim()) {
+    // convert string into object
+    src = [fixSource({
+      src
+    })];
+  } else if (isObject(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;
+}
+
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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$1({
+      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__default["default"].isEventKey(event, 'Space') || keycode__default["default"].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__default["default"].screen.orientation || window__default["default"];
+      const changeOrientationEvent = window__default["default"].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__default["default"].WebVTT === 'function') {
+      window__default["default"].WebVTT.processCues(window__default["default"], [], 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__default["default"].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__default["default"].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__default["default"].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__default["default"].WebVTT.processCues(window__default["default"], 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__default["default"].isEventKey(event, 'Space') || keycode__default["default"].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__default["default"].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__default["default"].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__default["default"].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__default["default"].isEventKey(event, 'Left') || keycode__default["default"].isEventKey(event, 'Down')) {
+      event.preventDefault();
+      event.stopPropagation();
+      this.stepBack();
+
+      // Up and Right Arrows
+    } else if (keycode__default["default"].isEventKey(event, 'Right') || keycode__default["default"].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__default["default"].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__default["default"] && 'visibilityState' in document__default["default"]) {
+      this.on(document__default["default"], 'visibilitychange', this.toggleVisibility_);
+    }
+  }
+  toggleVisibility_(e) {
+    if (document__default["default"].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__default["default"].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__default["default"].isEventKey(event, 'Space') || keycode__default["default"].isEventKey(event, 'Enter')) {
+      event.preventDefault();
+      event.stopPropagation();
+      this.handleAction(event);
+    } else if (keycode__default["default"].isEventKey(event, 'Home')) {
+      event.preventDefault();
+      event.stopPropagation();
+      this.userSeek_(0);
+    } else if (keycode__default["default"].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__default["default"](event))) {
+      event.preventDefault();
+      event.stopPropagation();
+      const gotoFraction = (keycode__default["default"].codes[keycode__default["default"](event)] - keycode__default["default"].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__default["default"].isEventKey(event, 'PgDn')) {
+      event.preventDefault();
+      event.stopPropagation();
+      this.userSeek_(this.player_.currentTime() - STEP_SECONDS * PAGE_KEY_MULTIPLIER);
+    } else if (keycode__default["default"].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__default["default"] && 'visibilityState' in document__default["default"]) {
+      this.off(document__default["default"], '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__default["default"].pictureInPictureEnabled && this.player_.disablePictureInPicture() === false || this.player_.options_.enableDocumentPictureInPicture && 'documentPictureInPicture' in window__default["default"]) {
+      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__default["default"].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__default["default"][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__default["default"].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__default["default"], '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__default["default"], '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__default["default"].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__default["default"].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__default["default"].isEventKey(event, 'Left') || keycode__default["default"].isEventKey(event, 'Down')) {
+      event.preventDefault();
+      event.stopPropagation();
+      this.stepForward();
+
+      // Up and Right Arrows
+    } else if (keycode__default["default"].isEventKey(event, 'Right') || keycode__default["default"].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__default["default"], '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__default["default"], '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__default["default"].isEventKey(event, 'Esc') || keycode__default["default"].isEventKey(event, 'Tab')) {
+      if (this.buttonPressed_) {
+        this.unpressButton();
+      }
+
+      // Don't preventDefault for Tab key - we still want to lose focus
+      if (!keycode__default["default"].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__default["default"].isEventKey(event, 'Up') || keycode__default["default"].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__default["default"].isEventKey(event, 'Esc') || keycode__default["default"].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__default["default"].isEventKey(event, 'Esc') || keycode__default["default"].isEventKey(event, 'Tab')) {
+      if (this.buttonPressed_) {
+        this.unpressButton();
+      }
+      // Don't preventDefault for Tab key - we still want to lose focus
+      if (!keycode__default["default"].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__default["default"].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__default["default"].Event !== 'object') {
+          // Android 2.3 throws an Illegal Constructor error for window.Event
+          try {
+            event = new window__default["default"].Event('change');
+          } catch (err) {
+            // continue regardless of error
+          }
+        }
+        if (!event) {
+          event = document__default["default"].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__default["default"].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__default["default"].localStorage.setItem(LOCAL_STORAGE_KEY$1, JSON.stringify(values));
+      } else {
+        window__default["default"].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__default["default"].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$1({
+      createEl: !RESIZE_OBSERVER_AVAILABLE,
+      reportTouchActivity: false
+    }, options);
+    super(player, options_);
+    this.ResizeObserver = options.ResizeObserver || window__default["default"].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$1(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__default["default"].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(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__default["default"].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__default["default"].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__default["default"].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__default["default"].HTMLMediaElement.prototype, window__default["default"].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$1(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__default["default"].Element.prototype.getAttribute.call(this, 'src'));
+    }
+    return '';
+  },
+  set(v) {
+    window__default["default"].Element.prototype.setAttribute.call(this, 'src', v);
+    return v;
+  }
+});
+const getSrcDescriptor = tech => getDescriptor([tech.el(), window__default["default"].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$1(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__default["default"].createElement('video');
+
+        // determine if native controls should be used
+        const tagAttributes = this.options_.tag && getAttributes(this.options_.tag);
+        const attributes = merge$1({}, 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__default["default"].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__default["default"].performance) {
+      videoPlaybackQuality.creationTime = window__default["default"].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__default["default"].createElement('video');
+  const track = document__default["default"].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__default["default"].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__default["default"].createElement('video'), 'src', {
+      get: noop,
+      set: noop
+    });
+    Object.defineProperty(document__default["default"].createElement('audio'), 'src', {
+      get: noop,
+      set: noop
+    });
+    Object.defineProperty(document__default["default"].createElement('video'), 'innerHTML', {
+      get: noop,
+      set: noop
+    });
+    Object.defineProperty(document__default["default"].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__default["default"], 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$1(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__default["default"].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$6.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__default["default"], this.fsApi_.fullscreenchange, this.boundDocumentFullscreenChange_);
+    off(document__default["default"], '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__default["default"].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__default["default"].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__default["default"].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$6
+    };
+  }
+
+  /**
+   * 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$1({}, 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__default["default"][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__default["default"][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__default["default"].documentElement.style.overflow;
+
+    // Add listener for esc key to exit fullscreen
+    on(document__default["default"], 'keydown', this.boundFullWindowOnEscKey_);
+
+    // Hide any scroll bars
+    document__default["default"].documentElement.style.overflow = 'hidden';
+
+    // Apply fullscreen styles
+    addClass(document__default["default"].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__default["default"].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__default["default"], 'keydown', this.boundFullWindowOnEscKey_);
+
+    // Unhide scroll bars.
+    document__default["default"].documentElement.style.overflow = this.docOrigOverflow;
+
+    // Remove fullscreen styles
+    removeClass(document__default["default"].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__default["default"].documentPictureInPicture) {
+      const pipContainer = document__default["default"].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__default["default"].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__default["default"] && 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__default["default"].documentPictureInPicture && window__default["default"].documentPictureInPicture.window) {
+      // With documentPictureInPicture, Player#leavepictureinpicture is fired in the pagehide handler
+      window__default["default"].documentPictureInPicture.window.close();
+      return Promise.resolve();
+    }
+    if ('pictureInPictureEnabled' in document__default["default"]) {
+      /**
+       * This event fires when the player leaves picture in picture mode
+       *
+       * @event Player#leavepictureinpicture
+       * @type {Event}
+       */
+      return document__default["default"].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__default["default"].isEventKey(keydownEvent, 'f'),
+      muteKey = keydownEvent => keycode__default["default"].isEventKey(keydownEvent, 'm'),
+      playPauseKey = keydownEvent => keycode__default["default"].isEventKey(keydownEvent, 'k') || keycode__default["default"].isEventKey(keydownEvent, 'Space')
+    } = hotkeys;
+    if (fullscreenKey.call(this, event)) {
+      event.preventDefault();
+      event.stopPropagation();
+      const FSToggle = Component$1.getComponent('FullscreenToggle');
+      if (document__default["default"][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(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$1(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$1(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$1(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$1(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$1(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] = safeParseTuple__default["default"](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__default["default"].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__default["default"].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$1(options));
+    if (!isObject(opts) || Array.isArray(opts)) {
+      log$1.error('please return an object in beforesetup hooks');
+      return;
+    }
+    options = merge$1(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__default["default"].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$6;
+
+/**
+ * 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$1);
+
+/**
+ * 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$1(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 = XHR__default["default"];
+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;
+
+/*! @name videojs-contrib-quality-levels @version 4.1.0 @license Apache-2.0 */
+
+/**
+ * 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.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$5 = "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$1 = 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$5;
+  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$1(this, videojs.obj.merge({}, options));
+};
+
+// Register the plugin with video.js.
+videojs.registerPlugin('qualityLevels', qualityLevels);
+
+// Include the version number.
+qualityLevels.VERSION = version$5;
+
+/*! @name @videojs/http-streaming @version 3.12.1 @license Apache-2.0 */
+
+/**
+ * @file resolve-url.js - Handling how URLs are resolved and manipulated
+ */
+const resolveUrl = _resolveUrl__default["default"];
+/**
+ * If the xhr request was redirected, return the responseURL, otherwise,
+ * return the original url.
+ *
+ * @api private
+ *
+ * @param  {string} url - an url being requested
+ * @param  {XMLHttpRequest} req - xhr request result
+ *
+ * @return {string}
+ */
+
+const resolveManifestRedirect = (url, req) => {
+  // To understand how the responseURL below is set and generated:
+  // - https://fetch.spec.whatwg.org/#concept-response-url
+  // - https://fetch.spec.whatwg.org/#atomic-http-redirect-handling
+  if (req && req.responseURL && url !== req.responseURL) {
+    return req.responseURL;
+  }
+  return url;
+};
+const logger = source => {
+  if (videojs.log.debug) {
+    return videojs.log.debug.bind(videojs, 'VHS:', `${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__default["default"].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 => codecs_js.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 m3u8Parser.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__default["default"].location.href,
+    resolvedUri: window__default["default"].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__default["default"]({}, 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__default["default"].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__default["default"].clearTimeout(this.mediaUpdateTimeout);
+    window__default["default"].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__default["default"].clearTimeout(this.finalRenditionTimeout);
+    if (shouldDelay) {
+      const delay = (playlist.partTargetDuration || playlist.targetDuration) / 2 * 1000 || 5 * 1000;
+      this.finalRenditionTimeout = window__default["default"].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__default["default"].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__default["default"].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__default["default"].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__default["default"].clearTimeout(this.mediaUpdateTimeout);
+      this.mediaUpdateTimeout = null;
+    } // we only have use mediaupdatetimeout for live playlists.
+
+    if (!this.media() || this.media().endList) {
+      return;
+    }
+    this.mediaUpdateTimeout = window__default["default"].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__default["default"].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__default["default"].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__default["default"]({}, 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__default["default"].BigInt(byterange.offset) + window__default["default"].BigInt(byterange.length) - window__default["default"].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 (byteHelpers.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 = byteHelpers.concatTypedArrays(bytes, byteHelpers.stringToBytes(newPart, true));
+    id3Offset = id3Offset || id3Helpers.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 = containers.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 = mpdParser.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 = mpdParser.generateSidxKey(playlist.sidx); // add sidx segments to the playlist if we have all the sidx info already
+
+      if (sidxMapping && sidxMapping[sidxKey] && sidxMapping[sidxKey].sidx) {
+        mpdParser.addSidxSegmentsToPlaylist(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 = mpdParser.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 && mpdParser.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__default["default"].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__default["default"](byteHelpers.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
+      };
+      mpdParser.addSidxSegmentsToPlaylist(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__default["default"].clearTimeout(this.minimumUpdatePeriodTimeout_);
+    window__default["default"].clearTimeout(this.mediaRequest_);
+    window__default["default"].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__default["default"].clearTimeout(this.mediaUpdateTimeout);
+    this.mediaUpdateTimeout = null;
+    if (this.isMain_) {
+      window__default["default"].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__default["default"].clearTimeout(this.mediaUpdateTimeout);
+    this.mediaUpdateTimeout = null;
+    const media = this.media();
+    if (isFinalRendition) {
+      const delay = media ? media.targetDuration / 2 * 1000 : 5 * 1000;
+      this.mediaUpdateTimeout = window__default["default"].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__default["default"].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 = mpdParser.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__default["default"].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__default["default"].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__default["default"].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__default["default"]({}, 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 = containers.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 (containers.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 = containers.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$1 = logger('CodecUtils');
+/**
+ * Returns a set of codec strings parsed from the playlist or the default
+ * codec strings if no codecs were specified in the playlist
+ *
+ * @param {Playlist} media the current media playlist
+ * @return {Object} an object with the video and audio codecs
+ */
+
+const getCodecs = function (media) {
+  // if the codecs were explicitly specified, use them instead of the
+  // defaults
+  const mediaAttributes = media.attributes || {};
+  if (mediaAttributes.CODECS) {
+    return codecs_js.parseCodecs(mediaAttributes.CODECS);
+  }
+};
+const isMaat = (main, media) => {
+  const mediaAttributes = media.attributes || {};
+  return main && main.mediaGroups && main.mediaGroups.AUDIO && mediaAttributes.AUDIO && main.mediaGroups.AUDIO[mediaAttributes.AUDIO];
+};
+const isMuxed = (main, media) => {
+  if (!isMaat(main, media)) {
+    return true;
+  }
+  const mediaAttributes = media.attributes || {};
+  const audioGroup = main.mediaGroups.AUDIO[mediaAttributes.AUDIO];
+  for (const groupId in audioGroup) {
+    // If an audio group has a URI (the case for HLS, as HLS will use external playlists),
+    // or there are listed playlists (the case for DASH, as the manifest will have already
+    // provided all of the details necessary to generate the audio playlist, as opposed to
+    // HLS' externally requested playlists), then the content is demuxed.
+    if (!audioGroup[groupId].uri && !audioGroup[groupId].playlists) {
+      return true;
+    }
+  }
+  return false;
+};
+const unwrapCodecList = function (codecList) {
+  const codecs = {};
+  codecList.forEach(({
+    mediaType,
+    type,
+    details
+  }) => {
+    codecs[mediaType] = codecs[mediaType] || [];
+    codecs[mediaType].push(codecs_js.translateLegacyCodec(`${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(codecs_js.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__default["default"].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__default["default"].Number.MAX_VALUE;
+  if (right.attributes.BANDWIDTH) {
+    rightBandwidth = right.attributes.BANDWIDTH;
+  }
+  rightBandwidth = rightBandwidth || window__default["default"].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__default["default"].Number.MAX_VALUE;
+  if (right.attributes.RESOLUTION && right.attributes.RESOLUTION.width) {
+    rightWidth = right.attributes.RESOLUTION.width;
+  }
+  rightWidth = rightWidth || window__default["default"].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__default["default"].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__default["default"].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__default["default"].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__default["default"].WebKitDataCue || window__default["default"].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__default["default"].WebKitDataCue || window__default["default"].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__default["default"].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__default["default"].WebKitDataCue || window__default["default"].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.ONE_SECOND_IN_TS);
+  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.ONE_SECOND_IN_TS);
+  const endPts = Math.ceil((end - mapping) * clock.ONE_SECOND_IN_TS);
+  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__default["default"].BigInt(end) - window__default["default"].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__default["default"].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__default["default"].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__default["default"].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__default["default"].clearTimeout(this.checkBufferTimeout_);
+    }
+    this.checkBufferTimeout_ = window__default["default"].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__default["default"].clearTimeout(this.checkBufferTimeout_);
+    }
+    this.checkBufferTimeout_ = window__default["default"].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 ${MIN_BACK_BUFFER}s`);
+      this.waitingOnRemove_ = false; // wait the length of time alotted in the back buffer to prevent wasted
+      // attempts (since we can't clear less than the minimum)
+
+      this.quotaExceededErrorRetryTimeout_ = window__default["default"].setTimeout(() => {
+        this.logger_('On QUOTA_EXCEEDED_ERR, re-processing call queue');
+        this.quotaExceededErrorRetryTimeout_ = null;
+        this.processCallQueue_();
+      }, MIN_BACK_BUFFER * 1000);
+    }, true);
+  }
+  handleAppendError_({
+    segmentInfo,
+    type,
+    bytes
+  }, error) {
+    // if there's no error, nothing to do
+    if (!error) {
+      return;
+    }
+    if (error.code === QUOTA_EXCEEDED_ERR) {
+      this.handleQuotaExceededError_({
+        segmentInfo,
+        type,
+        bytes
+      }); // A quota exceeded error should be recoverable with a future re-append, so no need
+      // to trigger an append error.
+
+      return;
+    }
+    this.logger_('Received non QUOTA_EXCEEDED_ERR on append', error); // If an append errors, we often can't recover.
+    // (see https://w3c.github.io/media-source/#sourcebuffer-append-error).
+    //
+    // Trigger a special error so that it can be handled separately from normal,
+    // recoverable errors.
+
+    this.error({
+      message: `${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__default["default"]({}, segmentInfo, {
+          forceTimestampOffset: true
+        });
+        _extends__default["default"](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__default["default"].WebKitDataCue || window__default["default"].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 = codecs_js.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 = codecs_js.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__default["default"].MediaSource && window__default["default"].MediaSource.prototype && typeof window__default["default"].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__default["default"].SourceBuffer && window__default["default"].SourceBuffer.prototype && typeof window__default["default"].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__default["default"].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__default["default"].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__default["default"].WebVTT !== 'function') {
+      // caller is responsible for exception handling.
+      throw new NoVttJsError();
+    }
+    if (typeof window__default["default"].TextDecoder === 'function') {
+      decoder = new window__default["default"].TextDecoder('utf8');
+    } else {
+      decoder = window__default["default"].WebVTT.StringDecoder();
+      decodeBytesToString = true;
+    }
+    const parser = new window__default["default"].WebVTT.Parser(window__default["default"], window__default["default"].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.ONE_SECOND_IN_TS;
+    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.ONE_SECOND_IN_TS;
+    const referenceIn90khz = reference * clock.ONE_SECOND_IN_TS;
+    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.ONE_SECOND_IN_TS;
+  }
+}
+
+/**
+ * @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__default["default"].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__default["default"].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 ${error}.`);
+        this.startTTLTimeout_();
+        return;
+      }
+      const steeringManifestJson = JSON.parse(this.request_.responseText);
+      this.assignSteeringProperties_(steeringManifestJson);
+      this.startTTLTimeout_();
+    });
+  }
+  /**
+   * Set the proxy server URL and add the steering manifest url as a URI encoded parameter.
+   *
+   * @param {string} steeringUrl the steering manifest url
+   * @return the steering manifest url to a proxy server with all parameters set
+   */
+
+  setProxyServerUrl_(steeringUrl) {
+    const steeringUrlObject = new window__default["default"].URL(steeringUrl);
+    const proxyServerUrlObject = new window__default["default"].URL(this.proxyServerUrl_);
+    proxyServerUrlObject.searchParams.set('url', encodeURI(steeringUrlObject.toString()));
+    return this.setSteeringParams_(proxyServerUrlObject.toString());
+  }
+  /**
+   * Decodes and parses the data uri encoded steering manifest
+   *
+   * @param {string} dataUri the data uri to be decoded and parsed.
+   */
+
+  decodeDataUriManifest_(dataUri) {
+    const steeringManifestJson = JSON.parse(window__default["default"].atob(dataUri));
+    this.assignSteeringProperties_(steeringManifestJson);
+  }
+  /**
+   * Set the HLS or DASH content steering manifest request query parameters. For example:
+   * _HLS_pathway="<CURRENT-PATHWAY-ID>" and _HLS_throughput=<THROUGHPUT>
+   * _DASH_pathway and _DASH_throughput
+   *
+   * @param {string} uri to add content steering server parameters to.
+   * @return a new uri as a string with the added steering query parameters.
+   */
+
+  setSteeringParams_(url) {
+    const urlObject = new window__default["default"].URL(url);
+    const path = this.getPathway();
+    const networkThroughput = this.getBandwidth_();
+    if (path) {
+      const pathwayKey = `_${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__default["default"].setTimeout(() => {
+      this.requestSteeringManifest();
+    }, ttlMS);
+  }
+  /**
+   * Clear the TTL timeout if necessary.
+   */
+
+  clearTTLTimeout_() {
+    window__default["default"].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__default["default"].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__default["default"].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__default["default"].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 || codecs_js.DEFAULT_VIDEO_CODEC;
+    }
+    if (media.main.isMuxed) {
+      codecs.video += `,${playlistCodecs.audio || media.main.audioCodec || codecs_js.DEFAULT_AUDIO_CODEC}`;
+    }
+    if (media.main.hasAudio && !media.main.isMuxed || media.audio.hasAudio || usingAudioLoader) {
+      codecs.audio = playlistCodecs.audio || media.main.audioCodec || media.audio.audioCodec || codecs_js.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 ? codecs_js.browserSupportsCodec(codec) : codecs_js.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 = (codecs_js.parseCodecs(this.sourceUpdater_.codecs[type] || '')[0] || {}).type;
+        const oldCodec = (codecs_js.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 && !codecs_js.muxerSupportsCodec(codecs.audio) && !codecs_js.browserSupportsCodec(codecs.audio)) {
+        unsupported.push(`audio codec ${codecs.audio}`);
+      }
+      if (codecs.video && !codecs_js.muxerSupportsCodec(codecs.video) && !codecs_js.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(codecs_js.parseCodecs(codecString));
+    const codecCount_ = codecCount(codecs);
+    const videoDetails = codecs.video && codecs_js.parseCodecs(codecs.video)[0] || null;
+    const audioDetails = codecs.audio && codecs_js.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}" !== "${codecCount_}"`);
+      } // only exclude playlists by codec change, if codecs cannot switch
+      // during playback.
+
+      if (!this.sourceUpdater_.canChangeType()) {
+        const variantVideoDetails = variantCodecs.video && codecs_js.parseCodecs(variantCodecs.video)[0] || null;
+        const variantAudioDetails = variantCodecs.audio && codecs_js.parseCodecs(variantCodecs.audio)[0] || null; // the video codec cannot change
+
+        if (variantVideoDetails && videoDetails && variantVideoDetails.type.toLowerCase() !== videoDetails.type.toLowerCase()) {
+          exclusionReasons.push(`video codec "${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__default["default"].clearTimeout(this.checkCurrentTimeTimeout_);
+      }
+      this.resetTimeUpdate_();
+    };
+  }
+  /**
+   * Periodically check current time to see if playback stopped
+   *
+   * @private
+   */
+
+  monitorCurrentTime_() {
+    this.checkCurrentTime_();
+    if (this.checkCurrentTimeTimeout_) {
+      window__default["default"].clearTimeout(this.checkCurrentTimeTimeout_);
+    } // 42 = 24 fps // 250 is what Webkit uses // FF uses 15
+
+    this.checkCurrentTimeTimeout_ = window__default["default"].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(codecs_js.parseCodecs(mainPlaylist.attributes.CODECS));
+  }
+  if (audioPlaylist && audioPlaylist.attributes && audioPlaylist.attributes.CODECS) {
+    codecs.audio = audioPlaylist.attributes.CODECS;
+  }
+  const videoContentType = codecs_js.getMimeForCodec(codecs.video);
+  const audioContentType = codecs_js.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__default["default"].localStorage) {
+    return null;
+  }
+  const storedObject = window__default["default"].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__default["default"].localStorage) {
+    return false;
+  }
+  let objectToStore = getVhsLocalStorage();
+  objectToStore = objectToStore ? merge(objectToStore, options) : options;
+  try {
+    window__default["default"].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__default["default"] || !document__default["default"].createElement) {
+    return false;
+  }
+  const video = document__default["default"].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__default["default"] || !document__default["default"].createElement || !videojs.getTech('Html5').isSupported()) {
+    return false;
+  }
+  return /maybe|probably/i.test(document__default["default"].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__default["default"], ['fullscreenchange', 'webkitfullscreenchange', 'mozfullscreenchange', 'MSFullscreenChange'], event => {
+      const fullscreenElement = document__default["default"].fullscreenElement || document__default["default"].webkitFullscreenElement || document__default["default"].mozFullScreenElement || document__default["default"].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 = mediaTypes_js.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__default["default"].navigator.connection || window__default["default"].navigator.mozConnection || window__default["default"].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__default["default"].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__default["default"].URL.revokeObjectURL) {
+      window__default["default"].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 = mediaTypes_js.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 codecs_js.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);
+}
+
+module.exports = videojs;