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authorYves Fischer <yvesf-git@xapek.org>2015-12-31 00:06:05 +0100
committerYves Fischer <yvesf-git@xapek.org>2016-01-08 20:38:18 +0100
commit48f917e478ed365e58f6880a90dd00be120fcc83 (patch)
tree1d8fce43de4f9ce0dbebd2de14e31dbb836f7e6a /mediabrowser/assets/hls.js
parent2a5bc9636647c1beeb58f3f0b3f2bcecb3509d16 (diff)
downloadflask-mediabrowser-48f917e478ed365e58f6880a90dd00be120fcc83.tar.gz
flask-mediabrowser-48f917e478ed365e58f6880a90dd00be120fcc83.zip
update hls.js
Diffstat (limited to 'mediabrowser/assets/hls.js')
-rw-r--r--mediabrowser/assets/hls.js5709
1 files changed, 0 insertions, 5709 deletions
diff --git a/mediabrowser/assets/hls.js b/mediabrowser/assets/hls.js
deleted file mode 100644
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--- a/mediabrowser/assets/hls.js
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@@ -1,5709 +0,0 @@
-!function(e){if("object"==typeof exports&&"undefined"!=typeof module)module.exports=e();else if("function"==typeof define&&define.amd)define([],e);else{var f;"undefined"!=typeof window?f=window:"undefined"!=typeof global?f=global:"undefined"!=typeof self&&(f=self),f.Hls=e()}}(function(){var define,module,exports;return (function e(t,n,r){function s(o,u){if(!n[o]){if(!t[o]){var a=typeof require=="function"&&require;if(!u&&a)return a(o,!0);if(i)return i(o,!0);var f=new Error("Cannot find module '"+o+"'");throw f.code="MODULE_NOT_FOUND",f}var l=n[o]={exports:{}};t[o][0].call(l.exports,function(e){var n=t[o][1][e];return s(n?n:e)},l,l.exports,e,t,n,r)}return n[o].exports}var i=typeof require=="function"&&require;for(var o=0;o<r.length;o++)s(r[o]);return s})({1:[function(require,module,exports){
-// Copyright Joyent, Inc. and other Node contributors.
-//
-// Permission is hereby granted, free of charge, to any person obtaining a
-// copy of this software and associated documentation files (the
-// "Software"), to deal in the Software without restriction, including
-// without limitation the rights to use, copy, modify, merge, publish,
-// distribute, sublicense, and/or sell copies of the Software, and to permit
-// persons to whom the Software is furnished to do so, subject to the
-// following conditions:
-//
-// The above copyright notice and this permission notice shall be included
-// in all copies or substantial portions of the Software.
-//
-// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
-// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
-// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
-// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
-// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
-// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
-// USE OR OTHER DEALINGS IN THE SOFTWARE.
-
-function EventEmitter() {
- this._events = this._events || {};
- this._maxListeners = this._maxListeners || undefined;
-}
-module.exports = EventEmitter;
-
-// Backwards-compat with node 0.10.x
-EventEmitter.EventEmitter = EventEmitter;
-
-EventEmitter.prototype._events = undefined;
-EventEmitter.prototype._maxListeners = undefined;
-
-// By default EventEmitters will print a warning if more than 10 listeners are
-// added to it. This is a useful default which helps finding memory leaks.
-EventEmitter.defaultMaxListeners = 10;
-
-// Obviously not all Emitters should be limited to 10. This function allows
-// that to be increased. Set to zero for unlimited.
-EventEmitter.prototype.setMaxListeners = function(n) {
- if (!isNumber(n) || n < 0 || isNaN(n))
- throw TypeError('n must be a positive number');
- this._maxListeners = n;
- return this;
-};
-
-EventEmitter.prototype.emit = function(type) {
- var er, handler, len, args, i, listeners;
-
- if (!this._events)
- this._events = {};
-
- // If there is no 'error' event listener then throw.
- if (type === 'error') {
- if (!this._events.error ||
- (isObject(this._events.error) && !this._events.error.length)) {
- er = arguments[1];
- if (er instanceof Error) {
- throw er; // Unhandled 'error' event
- }
- throw TypeError('Uncaught, unspecified "error" event.');
- }
- }
-
- handler = this._events[type];
-
- if (isUndefined(handler))
- return false;
-
- if (isFunction(handler)) {
- switch (arguments.length) {
- // fast cases
- case 1:
- handler.call(this);
- break;
- case 2:
- handler.call(this, arguments[1]);
- break;
- case 3:
- handler.call(this, arguments[1], arguments[2]);
- break;
- // slower
- default:
- len = arguments.length;
- args = new Array(len - 1);
- for (i = 1; i < len; i++)
- args[i - 1] = arguments[i];
- handler.apply(this, args);
- }
- } else if (isObject(handler)) {
- len = arguments.length;
- args = new Array(len - 1);
- for (i = 1; i < len; i++)
- args[i - 1] = arguments[i];
-
- listeners = handler.slice();
- len = listeners.length;
- for (i = 0; i < len; i++)
- listeners[i].apply(this, args);
- }
-
- return true;
-};
-
-EventEmitter.prototype.addListener = function(type, listener) {
- var m;
-
- if (!isFunction(listener))
- throw TypeError('listener must be a function');
-
- if (!this._events)
- this._events = {};
-
- // To avoid recursion in the case that type === "newListener"! Before
- // adding it to the listeners, first emit "newListener".
- if (this._events.newListener)
- this.emit('newListener', type,
- isFunction(listener.listener) ?
- listener.listener : listener);
-
- if (!this._events[type])
- // Optimize the case of one listener. Don't need the extra array object.
- this._events[type] = listener;
- else if (isObject(this._events[type]))
- // If we've already got an array, just append.
- this._events[type].push(listener);
- else
- // Adding the second element, need to change to array.
- this._events[type] = [this._events[type], listener];
-
- // Check for listener leak
- if (isObject(this._events[type]) && !this._events[type].warned) {
- var m;
- if (!isUndefined(this._maxListeners)) {
- m = this._maxListeners;
- } else {
- m = EventEmitter.defaultMaxListeners;
- }
-
- if (m && m > 0 && this._events[type].length > m) {
- this._events[type].warned = true;
- console.error('(node) warning: possible EventEmitter memory ' +
- 'leak detected. %d listeners added. ' +
- 'Use emitter.setMaxListeners() to increase limit.',
- this._events[type].length);
- if (typeof console.trace === 'function') {
- // not supported in IE 10
- console.trace();
- }
- }
- }
-
- return this;
-};
-
-EventEmitter.prototype.on = EventEmitter.prototype.addListener;
-
-EventEmitter.prototype.once = function(type, listener) {
- if (!isFunction(listener))
- throw TypeError('listener must be a function');
-
- var fired = false;
-
- function g() {
- this.removeListener(type, g);
-
- if (!fired) {
- fired = true;
- listener.apply(this, arguments);
- }
- }
-
- g.listener = listener;
- this.on(type, g);
-
- return this;
-};
-
-// emits a 'removeListener' event iff the listener was removed
-EventEmitter.prototype.removeListener = function(type, listener) {
- var list, position, length, i;
-
- if (!isFunction(listener))
- throw TypeError('listener must be a function');
-
- if (!this._events || !this._events[type])
- return this;
-
- list = this._events[type];
- length = list.length;
- position = -1;
-
- if (list === listener ||
- (isFunction(list.listener) && list.listener === listener)) {
- delete this._events[type];
- if (this._events.removeListener)
- this.emit('removeListener', type, listener);
-
- } else if (isObject(list)) {
- for (i = length; i-- > 0;) {
- if (list[i] === listener ||
- (list[i].listener && list[i].listener === listener)) {
- position = i;
- break;
- }
- }
-
- if (position < 0)
- return this;
-
- if (list.length === 1) {
- list.length = 0;
- delete this._events[type];
- } else {
- list.splice(position, 1);
- }
-
- if (this._events.removeListener)
- this.emit('removeListener', type, listener);
- }
-
- return this;
-};
-
-EventEmitter.prototype.removeAllListeners = function(type) {
- var key, listeners;
-
- if (!this._events)
- return this;
-
- // not listening for removeListener, no need to emit
- if (!this._events.removeListener) {
- if (arguments.length === 0)
- this._events = {};
- else if (this._events[type])
- delete this._events[type];
- return this;
- }
-
- // emit removeListener for all listeners on all events
- if (arguments.length === 0) {
- for (key in this._events) {
- if (key === 'removeListener') continue;
- this.removeAllListeners(key);
- }
- this.removeAllListeners('removeListener');
- this._events = {};
- return this;
- }
-
- listeners = this._events[type];
-
- if (isFunction(listeners)) {
- this.removeListener(type, listeners);
- } else {
- // LIFO order
- while (listeners.length)
- this.removeListener(type, listeners[listeners.length - 1]);
- }
- delete this._events[type];
-
- return this;
-};
-
-EventEmitter.prototype.listeners = function(type) {
- var ret;
- if (!this._events || !this._events[type])
- ret = [];
- else if (isFunction(this._events[type]))
- ret = [this._events[type]];
- else
- ret = this._events[type].slice();
- return ret;
-};
-
-EventEmitter.listenerCount = function(emitter, type) {
- var ret;
- if (!emitter._events || !emitter._events[type])
- ret = 0;
- else if (isFunction(emitter._events[type]))
- ret = 1;
- else
- ret = emitter._events[type].length;
- return ret;
-};
-
-function isFunction(arg) {
- return typeof arg === 'function';
-}
-
-function isNumber(arg) {
- return typeof arg === 'number';
-}
-
-function isObject(arg) {
- return typeof arg === 'object' && arg !== null;
-}
-
-function isUndefined(arg) {
- return arg === void 0;
-}
-
-},{}],2:[function(require,module,exports){
-var bundleFn = arguments[3];
-var sources = arguments[4];
-var cache = arguments[5];
-
-var stringify = JSON.stringify;
-
-module.exports = function (fn) {
- var keys = [];
- var wkey;
- var cacheKeys = Object.keys(cache);
-
- for (var i = 0, l = cacheKeys.length; i < l; i++) {
- var key = cacheKeys[i];
- if (cache[key].exports === fn) {
- wkey = key;
- break;
- }
- }
-
- if (!wkey) {
- wkey = Math.floor(Math.pow(16, 8) * Math.random()).toString(16);
- var wcache = {};
- for (var i = 0, l = cacheKeys.length; i < l; i++) {
- var key = cacheKeys[i];
- wcache[key] = key;
- }
- sources[wkey] = [
- Function(['require','module','exports'], '(' + fn + ')(self)'),
- wcache
- ];
- }
- var skey = Math.floor(Math.pow(16, 8) * Math.random()).toString(16);
-
- var scache = {}; scache[wkey] = wkey;
- sources[skey] = [
- Function(['require'],'require(' + stringify(wkey) + ')(self)'),
- scache
- ];
-
- var src = '(' + bundleFn + ')({'
- + Object.keys(sources).map(function (key) {
- return stringify(key) + ':['
- + sources[key][0]
- + ',' + stringify(sources[key][1]) + ']'
- ;
- }).join(',')
- + '},{},[' + stringify(skey) + '])'
- ;
-
- var URL = window.URL || window.webkitURL || window.mozURL || window.msURL;
-
- return new Worker(URL.createObjectURL(
- new Blob([src], { type: 'text/javascript' })
- ));
-};
-
-},{}],3:[function(require,module,exports){
-/*
- * simple ABR Controller
-*/
-
-'use strict';
-
-Object.defineProperty(exports, '__esModule', {
- value: true
-});
-
-var _createClass = (function () { function defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ('value' in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor; }; })();
-
-function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { 'default': obj }; }
-
-function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError('Cannot call a class as a function'); } }
-
-var _events = require('../events');
-
-var _events2 = _interopRequireDefault(_events);
-
-var AbrController = (function () {
- function AbrController(hls) {
- _classCallCheck(this, AbrController);
-
- this.hls = hls;
- this.lastfetchlevel = 0;
- this._autoLevelCapping = -1;
- this._nextAutoLevel = -1;
- this.onflp = this.onFragmentLoadProgress.bind(this);
- hls.on(_events2['default'].FRAG_LOAD_PROGRESS, this.onflp);
- }
-
- _createClass(AbrController, [{
- key: 'destroy',
- value: function destroy() {
- this.hls.off(_events2['default'].FRAG_LOAD_PROGRESS, this.onflp);
- }
- }, {
- key: 'onFragmentLoadProgress',
- value: function onFragmentLoadProgress(event, data) {
- var stats = data.stats;
- if (stats.aborted === undefined) {
- this.lastfetchduration = (performance.now() - stats.trequest) / 1000;
- this.lastfetchlevel = data.frag.level;
- this.lastbw = stats.loaded * 8 / this.lastfetchduration;
- //console.log(`fetchDuration:${this.lastfetchduration},bw:${(this.lastbw/1000).toFixed(0)}/${stats.aborted}`);
- }
- }
-
- /** Return the capping/max level value that could be used by automatic level selection algorithm **/
- }, {
- key: 'autoLevelCapping',
- get: function get() {
- return this._autoLevelCapping;
- },
-
- /** set the capping/max level value that could be used by automatic level selection algorithm **/
- set: function set(newLevel) {
- this._autoLevelCapping = newLevel;
- }
- }, {
- key: 'nextAutoLevel',
- get: function get() {
- var lastbw = this.lastbw,
- hls = this.hls,
- adjustedbw,
- i,
- maxAutoLevel;
- if (this._autoLevelCapping === -1) {
- maxAutoLevel = hls.levels.length - 1;
- } else {
- maxAutoLevel = this._autoLevelCapping;
- }
-
- if (this._nextAutoLevel !== -1) {
- var nextLevel = Math.min(this._nextAutoLevel, maxAutoLevel);
- if (nextLevel === this.lastfetchlevel) {
- this._nextAutoLevel = -1;
- } else {
- return nextLevel;
- }
- }
-
- // follow algorithm captured from stagefright :
- // https://android.googlesource.com/platform/frameworks/av/+/master/media/libstagefright/httplive/LiveSession.cpp
- // Pick the highest bandwidth stream below or equal to estimated bandwidth.
- for (i = 0; i <= maxAutoLevel; i++) {
- // consider only 80% of the available bandwidth, but if we are switching up,
- // be even more conservative (70%) to avoid overestimating and immediately
- // switching back.
- if (i <= this.lastfetchlevel) {
- adjustedbw = 0.8 * lastbw;
- } else {
- adjustedbw = 0.7 * lastbw;
- }
- if (adjustedbw < hls.levels[i].bitrate) {
- return Math.max(0, i - 1);
- }
- }
- return i - 1;
- },
- set: function set(nextLevel) {
- this._nextAutoLevel = nextLevel;
- }
- }]);
-
- return AbrController;
-})();
-
-exports['default'] = AbrController;
-module.exports = exports['default'];
-
-},{"../events":12}],4:[function(require,module,exports){
-/*
- * Level Controller
-*/
-
-'use strict';
-
-Object.defineProperty(exports, '__esModule', {
- value: true
-});
-
-var _createClass = (function () { function defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ('value' in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor; }; })();
-
-function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { 'default': obj }; }
-
-function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError('Cannot call a class as a function'); } }
-
-var _events = require('../events');
-
-var _events2 = _interopRequireDefault(_events);
-
-var _utilsLogger = require('../utils/logger');
-
-var _errors = require('../errors');
-
-var LevelController = (function () {
- function LevelController(hls) {
- _classCallCheck(this, LevelController);
-
- this.hls = hls;
- this.onml = this.onManifestLoaded.bind(this);
- this.onll = this.onLevelLoaded.bind(this);
- this.onerr = this.onError.bind(this);
- this.ontick = this.tick.bind(this);
- hls.on(_events2['default'].MANIFEST_LOADED, this.onml);
- hls.on(_events2['default'].LEVEL_LOADED, this.onll);
- hls.on(_events2['default'].ERROR, this.onerr);
- this._manualLevel = this._autoLevelCapping = -1;
- }
-
- _createClass(LevelController, [{
- key: 'destroy',
- value: function destroy() {
- var hls = this.hls;
- hls.off(_events2['default'].MANIFEST_LOADED, this.onml);
- hls.off(_events2['default'].LEVEL_LOADED, this.onll);
- hls.off(_events2['default'].ERROR, this.onerr);
- if (this.timer) {
- clearInterval(this.timer);
- }
- this._manualLevel = -1;
- }
- }, {
- key: 'onManifestLoaded',
- value: function onManifestLoaded(event, data) {
- var levels0 = [],
- levels = [],
- bitrateStart,
- i,
- bitrateSet = {},
- videoCodecFound = false,
- audioCodecFound = false;
-
- // regroup redundant level together
- data.levels.forEach(function (level) {
- if (level.videoCodec) {
- videoCodecFound = true;
- }
- if (level.audioCodec) {
- audioCodecFound = true;
- }
- var redundantLevelId = bitrateSet[level.bitrate];
- if (redundantLevelId === undefined) {
- bitrateSet[level.bitrate] = levels.length;
- level.url = [level.url];
- level.urlId = 0;
- levels0.push(level);
- } else {
- levels0[redundantLevelId].url.push(level.url);
- }
- });
-
- // remove audio-only level if we also have levels with audio+video codecs signalled
- if (videoCodecFound && audioCodecFound) {
- levels0.forEach(function (level) {
- if (level.videoCodec) {
- levels.push(level);
- }
- });
- } else {
- levels = levels0;
- }
-
- // start bitrate is the first bitrate of the manifest
- bitrateStart = levels[0].bitrate;
- // sort level on bitrate
- levels.sort(function (a, b) {
- return a.bitrate - b.bitrate;
- });
- this._levels = levels;
- // find index of first level in sorted levels
- for (i = 0; i < levels.length; i++) {
- if (levels[i].bitrate === bitrateStart) {
- this._firstLevel = i;
- _utilsLogger.logger.log('manifest loaded,' + levels.length + ' level(s) found, first bitrate:' + bitrateStart);
- break;
- }
- }
- this.hls.trigger(_events2['default'].MANIFEST_PARSED, { levels: this._levels, firstLevel: this._firstLevel, stats: data.stats });
- return;
- }
- }, {
- key: 'setLevelInternal',
- value: function setLevelInternal(newLevel) {
- // check if level idx is valid
- if (newLevel >= 0 && newLevel < this._levels.length) {
- // stopping live reloading timer if any
- if (this.timer) {
- clearInterval(this.timer);
- this.timer = null;
- }
- this._level = newLevel;
- _utilsLogger.logger.log('switching to level ' + newLevel);
- this.hls.trigger(_events2['default'].LEVEL_SWITCH, { level: newLevel });
- var level = this._levels[newLevel];
- // check if we need to load playlist for this level
- if (level.details === undefined || level.details.live === true) {
- // level not retrieved yet, or live playlist we need to (re)load it
- _utilsLogger.logger.log('(re)loading playlist for level ' + newLevel);
- var urlId = level.urlId;
- this.hls.trigger(_events2['default'].LEVEL_LOADING, { url: level.url[urlId], level: newLevel, id: urlId });
- }
- } else {
- // invalid level id given, trigger error
- this.hls.trigger(_events2['default'].ERROR, { type: _errors.ErrorTypes.OTHER_ERROR, details: _errors.ErrorDetails.LEVEL_SWITCH_ERROR, level: newLevel, fatal: false, reason: 'invalid level idx' });
- }
- }
- }, {
- key: 'onError',
- value: function onError(event, data) {
- if (data.fatal) {
- return;
- }
-
- var details = data.details,
- hls = this.hls,
- levelId,
- level;
- // try to recover not fatal errors
- switch (details) {
- case _errors.ErrorDetails.FRAG_LOAD_ERROR:
- case _errors.ErrorDetails.FRAG_LOAD_TIMEOUT:
- case _errors.ErrorDetails.FRAG_LOOP_LOADING_ERROR:
- case _errors.ErrorDetails.KEY_LOAD_ERROR:
- case _errors.ErrorDetails.KEY_LOAD_TIMEOUT:
- levelId = data.frag.level;
- break;
- case _errors.ErrorDetails.LEVEL_LOAD_ERROR:
- case _errors.ErrorDetails.LEVEL_LOAD_TIMEOUT:
- levelId = data.level;
- break;
- default:
- break;
- }
- /* try to switch to a redundant stream if any available.
- * if no redundant stream available, emergency switch down (if in auto mode and current level not 0)
- * otherwise, we cannot recover this network error ....
- */
- if (levelId !== undefined) {
- level = this._levels[levelId];
- if (level.urlId < level.url.length - 1) {
- level.urlId++;
- level.details = undefined;
- _utilsLogger.logger.warn('level controller,' + details + ' for level ' + levelId + ': switching to redundant stream id ' + level.urlId);
- } else {
- // we could try to recover if in auto mode and current level not lowest level (0)
- var recoverable = this._manualLevel === -1 && levelId;
- if (recoverable) {
- _utilsLogger.logger.warn('level controller,' + details + ': emergency switch-down for next fragment');
- hls.abrController.nextAutoLevel = 0;
- } else if (level && level.details && level.details.live) {
- _utilsLogger.logger.warn('level controller,' + details + ' on live stream, discard');
- } else {
- _utilsLogger.logger.error('cannot recover ' + details + ' error');
- this._level = undefined;
- // stopping live reloading timer if any
- if (this.timer) {
- clearInterval(this.timer);
- this.timer = null;
- }
- // redispatch same error but with fatal set to true
- data.fatal = true;
- hls.trigger(event, data);
- }
- }
- }
- }
- }, {
- key: 'onLevelLoaded',
- value: function onLevelLoaded(event, data) {
- // check if current playlist is a live playlist
- if (data.details.live && !this.timer) {
- // if live playlist we will have to reload it periodically
- // set reload period to playlist target duration
- this.timer = setInterval(this.ontick, 1000 * data.details.targetduration);
- }
- if (!data.details.live && this.timer) {
- // playlist is not live and timer is armed : stopping it
- clearInterval(this.timer);
- this.timer = null;
- }
- }
- }, {
- key: 'tick',
- value: function tick() {
- var levelId = this._level;
- if (levelId !== undefined) {
- var level = this._levels[levelId],
- urlId = level.urlId;
- this.hls.trigger(_events2['default'].LEVEL_LOADING, { url: level.url[urlId], level: levelId, id: urlId });
- }
- }
- }, {
- key: 'nextLoadLevel',
- value: function nextLoadLevel() {
- if (this._manualLevel !== -1) {
- return this._manualLevel;
- } else {
- return this.hls.abrController.nextAutoLevel;
- }
- }
- }, {
- key: 'levels',
- get: function get() {
- return this._levels;
- }
- }, {
- key: 'level',
- get: function get() {
- return this._level;
- },
- set: function set(newLevel) {
- if (this._level !== newLevel || this._levels[newLevel].details === undefined) {
- this.setLevelInternal(newLevel);
- }
- }
- }, {
- key: 'manualLevel',
- get: function get() {
- return this._manualLevel;
- },
- set: function set(newLevel) {
- this._manualLevel = newLevel;
- if (newLevel !== -1) {
- this.level = newLevel;
- }
- }
- }, {
- key: 'firstLevel',
- get: function get() {
- return this._firstLevel;
- },
- set: function set(newLevel) {
- this._firstLevel = newLevel;
- }
- }, {
- key: 'startLevel',
- get: function get() {
- if (this._startLevel === undefined) {
- return this._firstLevel;
- } else {
- return this._startLevel;
- }
- },
- set: function set(newLevel) {
- this._startLevel = newLevel;
- }
- }]);
-
- return LevelController;
-})();
-
-exports['default'] = LevelController;
-module.exports = exports['default'];
-
-},{"../errors":11,"../events":12,"../utils/logger":21}],5:[function(require,module,exports){
-/*
- * MSE Media Controller
-*/
-
-'use strict';
-
-Object.defineProperty(exports, '__esModule', {
- value: true
-});
-
-var _createClass = (function () { function defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ('value' in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor; }; })();
-
-function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { 'default': obj }; }
-
-function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError('Cannot call a class as a function'); } }
-
-var _demuxDemuxer = require('../demux/demuxer');
-
-var _demuxDemuxer2 = _interopRequireDefault(_demuxDemuxer);
-
-var _events = require('../events');
-
-var _events2 = _interopRequireDefault(_events);
-
-var _utilsLogger = require('../utils/logger');
-
-var _utilsBinarySearch = require('../utils/binary-search');
-
-var _utilsBinarySearch2 = _interopRequireDefault(_utilsBinarySearch);
-
-var _helperLevelHelper = require('../helper/level-helper');
-
-var _helperLevelHelper2 = _interopRequireDefault(_helperLevelHelper);
-
-var _errors = require('../errors');
-
-var State = {
- ERROR: -2,
- STARTING: -1,
- IDLE: 0,
- KEY_LOADING: 1,
- FRAG_LOADING: 2,
- WAITING_LEVEL: 3,
- PARSING: 4,
- PARSED: 5,
- APPENDING: 6,
- BUFFER_FLUSHING: 7
-};
-
-var MSEMediaController = (function () {
- function MSEMediaController(hls) {
- _classCallCheck(this, MSEMediaController);
-
- this.config = hls.config;
- this.hls = hls;
- // Source Buffer listeners
- this.onsbue = this.onSBUpdateEnd.bind(this);
- this.onsbe = this.onSBUpdateError.bind(this);
- // internal listeners
- this.onmediaatt0 = this.onMediaAttaching.bind(this);
- this.onmediadet0 = this.onMediaDetaching.bind(this);
- this.onmp = this.onManifestParsed.bind(this);
- this.onll = this.onLevelLoaded.bind(this);
- this.onfl = this.onFragLoaded.bind(this);
- this.onkl = this.onKeyLoaded.bind(this);
- this.onis = this.onInitSegment.bind(this);
- this.onfpg = this.onFragParsing.bind(this);
- this.onfp = this.onFragParsed.bind(this);
- this.onerr = this.onError.bind(this);
- this.ontick = this.tick.bind(this);
- hls.on(_events2['default'].MEDIA_ATTACHING, this.onmediaatt0);
- hls.on(_events2['default'].MEDIA_DETACHING, this.onmediadet0);
- hls.on(_events2['default'].MANIFEST_PARSED, this.onmp);
- }
-
- _createClass(MSEMediaController, [{
- key: 'destroy',
- value: function destroy() {
- this.stop();
- var hls = this.hls;
- hls.off(_events2['default'].MEDIA_ATTACHING, this.onmediaatt0);
- hls.off(_events2['default'].MEDIA_DETACHING, this.onmediadet0);
- hls.off(_events2['default'].MANIFEST_PARSED, this.onmp);
- this.state = State.IDLE;
- }
- }, {
- key: 'startLoad',
- value: function startLoad() {
- if (this.levels && this.media) {
- this.startInternal();
- if (this.lastCurrentTime) {
- _utilsLogger.logger.log('seeking @ ' + this.lastCurrentTime);
- if (!this.lastPaused) {
- _utilsLogger.logger.log('resuming video');
- this.media.play();
- }
- this.state = State.IDLE;
- } else {
- this.lastCurrentTime = 0;
- this.state = State.STARTING;
- }
- this.nextLoadPosition = this.startPosition = this.lastCurrentTime;
- this.tick();
- } else {
- _utilsLogger.logger.warn('cannot start loading as either manifest not parsed or video not attached');
- }
- }
- }, {
- key: 'startInternal',
- value: function startInternal() {
- var hls = this.hls;
- this.stop();
- this.demuxer = new _demuxDemuxer2['default'](hls);
- this.timer = setInterval(this.ontick, 100);
- this.level = -1;
- hls.on(_events2['default'].FRAG_LOADED, this.onfl);
- hls.on(_events2['default'].FRAG_PARSING_INIT_SEGMENT, this.onis);
- hls.on(_events2['default'].FRAG_PARSING_DATA, this.onfpg);
- hls.on(_events2['default'].FRAG_PARSED, this.onfp);
- hls.on(_events2['default'].ERROR, this.onerr);
- hls.on(_events2['default'].LEVEL_LOADED, this.onll);
- hls.on(_events2['default'].KEY_LOADED, this.onkl);
- }
- }, {
- key: 'stop',
- value: function stop() {
- this.mp4segments = [];
- this.flushRange = [];
- this.bufferRange = [];
- var frag = this.fragCurrent;
- if (frag) {
- if (frag.loader) {
- frag.loader.abort();
- }
- this.fragCurrent = null;
- }
- this.fragPrevious = null;
- if (this.sourceBuffer) {
- for (var type in this.sourceBuffer) {
- var sb = this.sourceBuffer[type];
- try {
- this.mediaSource.removeSourceBuffer(sb);
- sb.removeEventListener('updateend', this.onsbue);
- sb.removeEventListener('error', this.onsbe);
- } catch (err) {}
- }
- this.sourceBuffer = null;
- }
- if (this.timer) {
- clearInterval(this.timer);
- this.timer = null;
- }
- if (this.demuxer) {
- this.demuxer.destroy();
- this.demuxer = null;
- }
- var hls = this.hls;
- hls.off(_events2['default'].FRAG_LOADED, this.onfl);
- hls.off(_events2['default'].FRAG_PARSED, this.onfp);
- hls.off(_events2['default'].FRAG_PARSING_DATA, this.onfpg);
- hls.off(_events2['default'].LEVEL_LOADED, this.onll);
- hls.off(_events2['default'].KEY_LOADED, this.onkl);
- hls.off(_events2['default'].FRAG_PARSING_INIT_SEGMENT, this.onis);
- hls.off(_events2['default'].ERROR, this.onerr);
- }
- }, {
- key: 'tick',
- value: function tick() {
- var pos,
- level,
- levelDetails,
- hls = this.hls;
- switch (this.state) {
- case State.ERROR:
- //don't do anything in error state to avoid breaking further ...
- break;
- case State.STARTING:
- // determine load level
- this.startLevel = hls.startLevel;
- if (this.startLevel === -1) {
- // -1 : guess start Level by doing a bitrate test by loading first fragment of lowest quality level
- this.startLevel = 0;
- this.fragBitrateTest = true;
- }
- // set new level to playlist loader : this will trigger start level load
- this.level = hls.nextLoadLevel = this.startLevel;
- this.state = State.WAITING_LEVEL;
- this.loadedmetadata = false;
- break;
- case State.IDLE:
- // if video detached or unbound exit loop
- if (!this.media) {
- break;
- }
- // determine next candidate fragment to be loaded, based on current position and
- // end of buffer position
- // ensure 60s of buffer upfront
- // if we have not yet loaded any fragment, start loading from start position
- if (this.loadedmetadata) {
- pos = this.media.currentTime;
- } else {
- pos = this.nextLoadPosition;
- }
- // determine next load level
- if (this.startFragmentRequested === false) {
- level = this.startLevel;
- } else {
- // we are not at playback start, get next load level from level Controller
- level = hls.nextLoadLevel;
- }
- var bufferInfo = this.bufferInfo(pos, 0.3),
- bufferLen = bufferInfo.len,
- bufferEnd = bufferInfo.end,
- fragPrevious = this.fragPrevious,
- maxBufLen;
- // compute max Buffer Length that we could get from this load level, based on level bitrate. don't buffer more than 60 MB and more than 30s
- if (this.levels[level].hasOwnProperty('bitrate')) {
- maxBufLen = Math.max(8 * this.config.maxBufferSize / this.levels[level].bitrate, this.config.maxBufferLength);
- maxBufLen = Math.min(maxBufLen, this.config.maxMaxBufferLength);
- } else {
- maxBufLen = this.config.maxBufferLength;
- }
- // if buffer length is less than maxBufLen try to load a new fragment
- if (bufferLen < maxBufLen) {
- // set next load level : this will trigger a playlist load if needed
- hls.nextLoadLevel = level;
- this.level = level;
- levelDetails = this.levels[level].details;
- // if level info not retrieved yet, switch state and wait for level retrieval
- if (typeof levelDetails === 'undefined') {
- this.state = State.WAITING_LEVEL;
- break;
- }
- // find fragment index, contiguous with end of buffer position
- var fragments = levelDetails.fragments,
- fragLen = fragments.length,
- start = fragments[0].start,
- end = fragments[fragLen - 1].start + fragments[fragLen - 1].duration,
- _frag = undefined;
-
- // in case of live playlist we need to ensure that requested position is not located before playlist start
- if (levelDetails.live) {
- // check if requested position is within seekable boundaries :
- //logger.log(`start/pos/bufEnd/seeking:${start.toFixed(3)}/${pos.toFixed(3)}/${bufferEnd.toFixed(3)}/${this.media.seeking}`);
- if (bufferEnd < Math.max(start, end - this.config.liveMaxLatencyDurationCount * levelDetails.targetduration)) {
- this.seekAfterBuffered = start + Math.max(0, levelDetails.totalduration - this.config.liveSyncDurationCount * levelDetails.targetduration);
- _utilsLogger.logger.log('buffer end: ' + bufferEnd + ' is located too far from the end of live sliding playlist, media position will be reseted to: ' + this.seekAfterBuffered.toFixed(3));
- bufferEnd = this.seekAfterBuffered;
- }
- if (this.startFragmentRequested && !levelDetails.PTSKnown) {
- /* we are switching level on live playlist, but we don't have any PTS info for that quality level ...
- try to load frag matching with next SN.
- even if SN are not synchronized between playlists, loading this frag will help us
- compute playlist sliding and find the right one after in case it was not the right consecutive one */
- if (fragPrevious) {
- var targetSN = fragPrevious.sn + 1;
- if (targetSN >= levelDetails.startSN && targetSN <= levelDetails.endSN) {
- _frag = fragments[targetSN - levelDetails.startSN];
- _utilsLogger.logger.log('live playlist, switching playlist, load frag with next SN: ' + _frag.sn);
- }
- }
- if (!_frag) {
- /* we have no idea about which fragment should be loaded.
- so let's load mid fragment. it will help computing playlist sliding and find the right one
- */
- _frag = fragments[Math.round(fragLen / 2)];
- _utilsLogger.logger.log('live playlist, switching playlist, unknown, load middle frag : ' + _frag.sn);
- }
- }
- } else {
- // VoD playlist: if bufferEnd before start of playlist, load first fragment
- if (bufferEnd < start) {
- _frag = fragments[0];
- }
- }
- if (!_frag) {
- if (bufferEnd > end) {
- // reach end of playlist
- break;
- }
- var foundFrag = _utilsBinarySearch2['default'].search(fragments, function (candidate) {
- //logger.log('level/sn/sliding/start/end/bufEnd:${level}/${candidate.sn}/${sliding.toFixed(3)}/${candidate.start.toFixed(3)}/${(candidate.start+candidate.duration).toFixed(3)}/${bufferEnd.toFixed(3)}');
- // offset should be within fragment boundary
- if (candidate.start + candidate.duration <= bufferEnd) {
- return 1;
- } else if (candidate.start > bufferEnd) {
- return -1;
- }
- return 0;
- });
-
- if (foundFrag) {
- _frag = foundFrag;
- start = foundFrag.start;
- //logger.log('find SN matching with pos:' + bufferEnd + ':' + frag.sn);
- if (fragPrevious && _frag.level === fragPrevious.level && _frag.sn === fragPrevious.sn) {
- if (_frag.sn < levelDetails.endSN) {
- _frag = fragments[_frag.sn + 1 - levelDetails.startSN];
- _utilsLogger.logger.log('SN just loaded, load next one: ' + _frag.sn);
- } else {
- // end of VOD playlist reached
- _frag = null;
- }
- }
- }
- }
- if (_frag) {
- //logger.log(' loading frag ' + i +',pos/bufEnd:' + pos.toFixed(3) + '/' + bufferEnd.toFixed(3));
- if (_frag.decryptdata.uri != null && _frag.decryptdata.key == null) {
- _utilsLogger.logger.log('Loading key for ' + _frag.sn + ' of [' + levelDetails.startSN + ' ,' + levelDetails.endSN + '],level ' + level);
- this.state = State.KEY_LOADING;
- hls.trigger(_events2['default'].KEY_LOADING, { frag: _frag });
- } else {
- _utilsLogger.logger.log('Loading ' + _frag.sn + ' of [' + levelDetails.startSN + ' ,' + levelDetails.endSN + '],level ' + level + ', currentTime:' + pos + ',bufferEnd:' + bufferEnd.toFixed(3));
- _frag.autoLevel = hls.autoLevelEnabled;
- if (this.levels.length > 1) {
- _frag.expectedLen = Math.round(_frag.duration * this.levels[level].bitrate / 8);
- _frag.trequest = performance.now();
- }
- // ensure that we are not reloading the same fragments in loop ...
- if (this.fragLoadIdx !== undefined) {
- this.fragLoadIdx++;
- } else {
- this.fragLoadIdx = 0;
- }
- if (_frag.loadCounter) {
- _frag.loadCounter++;
- var maxThreshold = this.config.fragLoadingLoopThreshold;
- // if this frag has already been loaded 3 times, and if it has been reloaded recently
- if (_frag.loadCounter > maxThreshold && Math.abs(this.fragLoadIdx - _frag.loadIdx) < maxThreshold) {
- hls.trigger(_events2['default'].ERROR, { type: _errors.ErrorTypes.MEDIA_ERROR, details: _errors.ErrorDetails.FRAG_LOOP_LOADING_ERROR, fatal: false, frag: _frag });
- return;
- }
- } else {
- _frag.loadCounter = 1;
- }
- _frag.loadIdx = this.fragLoadIdx;
- this.fragCurrent = _frag;
- this.startFragmentRequested = true;
- hls.trigger(_events2['default'].FRAG_LOADING, { frag: _frag });
- this.state = State.FRAG_LOADING;
- }
- }
- }
- break;
- case State.WAITING_LEVEL:
- level = this.levels[this.level];
- // check if playlist is already loaded
- if (level && level.details) {
- this.state = State.IDLE;
- }
- break;
- case State.FRAG_LOADING:
- /*
- monitor fragment retrieval time...
- we compute expected time of arrival of the complete fragment.
- we compare it to expected time of buffer starvation
- */
- var v = this.media,
- frag = this.fragCurrent;
- /* only monitor frag retrieval time if
- (video not paused OR first fragment being loaded) AND autoswitching enabled AND not lowest level AND multiple levels */
- if (v && (!v.paused || this.loadedmetadata === false) && frag.autoLevel && this.level && this.levels.length > 1) {
- var requestDelay = performance.now() - frag.trequest;
- // monitor fragment load progress after half of expected fragment duration,to stabilize bitrate
- if (requestDelay > 500 * frag.duration) {
- var loadRate = frag.loaded * 1000 / requestDelay; // byte/s
- if (frag.expectedLen < frag.loaded) {
- frag.expectedLen = frag.loaded;
- }
- pos = v.currentTime;
- var fragLoadedDelay = (frag.expectedLen - frag.loaded) / loadRate;
- var bufferStarvationDelay = this.bufferInfo(pos, 0.3).end - pos;
- var fragLevelNextLoadedDelay = frag.duration * this.levels[hls.nextLoadLevel].bitrate / (8 * loadRate); //bps/Bps
- /* if we have less than 2 frag duration in buffer and if frag loaded delay is greater than buffer starvation delay
- ... and also bigger than duration needed to load fragment at next level ...*/
- if (bufferStarvationDelay < 2 * frag.duration && fragLoadedDelay > bufferStarvationDelay && fragLoadedDelay > fragLevelNextLoadedDelay) {
- // abort fragment loading ...
- _utilsLogger.logger.warn('loading too slow, abort fragment loading');
- _utilsLogger.logger.log('fragLoadedDelay/bufferStarvationDelay/fragLevelNextLoadedDelay :' + fragLoadedDelay.toFixed(1) + '/' + bufferStarvationDelay.toFixed(1) + '/' + fragLevelNextLoadedDelay.toFixed(1));
- //abort fragment loading
- frag.loader.abort();
- hls.trigger(_events2['default'].FRAG_LOAD_EMERGENCY_ABORTED, { frag: frag });
- // switch back to IDLE state to request new fragment at lowest level
- this.state = State.IDLE;
- }
- }
- }
- break;
- case State.PARSING:
- // nothing to do, wait for fragment being parsed
- break;
- case State.PARSED:
- case State.APPENDING:
- if (this.sourceBuffer) {
- if (this.media.error) {
- _utilsLogger.logger.error('trying to append although a media error occured, switch to ERROR state');
- this.state = State.ERROR;
- return;
- }
- // if MP4 segment appending in progress nothing to do
- else if (this.sourceBuffer.audio && this.sourceBuffer.audio.updating || this.sourceBuffer.video && this.sourceBuffer.video.updating) {
- //logger.log('sb append in progress');
- // check if any MP4 segments left to append
- } else if (this.mp4segments.length) {
- var segment = this.mp4segments.shift();
- try {
- //logger.log(`appending ${segment.type} SB, size:${segment.data.length});
- this.sourceBuffer[segment.type].appendBuffer(segment.data);
- this.appendError = 0;
- } catch (err) {
- // in case any error occured while appending, put back segment in mp4segments table
- //logger.error(`error while trying to append buffer:${err.message},try appending later`);
- this.mp4segments.unshift(segment);
- if (this.appendError) {
- this.appendError++;
- } else {
- this.appendError = 1;
- }
- var event = { type: _errors.ErrorTypes.MEDIA_ERROR, details: _errors.ErrorDetails.BUFFER_APPEND_ERROR, frag: this.fragCurrent };
- /* with UHD content, we could get loop of quota exceeded error until
- browser is able to evict some data from sourcebuffer. retrying help recovering this
- */
- if (this.appendError > this.config.appendErrorMaxRetry) {
- _utilsLogger.logger.log('fail ' + this.config.appendErrorMaxRetry + ' times to append segment in sourceBuffer');
- event.fatal = true;
- hls.trigger(_events2['default'].ERROR, event);
- this.state = State.ERROR;
- return;
- } else {
- event.fatal = false;
- hls.trigger(_events2['default'].ERROR, event);
- }
- }
- this.state = State.APPENDING;
- }
- } else {
- // sourceBuffer undefined, switch back to IDLE state
- this.state = State.IDLE;
- }
- break;
- case State.BUFFER_FLUSHING:
- // loop through all buffer ranges to flush
- while (this.flushRange.length) {
- var range = this.flushRange[0];
- // flushBuffer will abort any buffer append in progress and flush Audio/Video Buffer
- if (this.flushBuffer(range.start, range.end)) {
- // range flushed, remove from flush array
- this.flushRange.shift();
- } else {
- // flush in progress, come back later
- break;
- }
- }
- if (this.flushRange.length === 0) {
- // handle end of immediate switching if needed
- if (this.immediateSwitch) {
- this.immediateLevelSwitchEnd();
- }
- // move to IDLE once flush complete. this should trigger new fragment loading
- this.state = State.IDLE;
- // reset reference to frag
- this.fragPrevious = null;
- }
- /* if not everything flushed, stay in BUFFER_FLUSHING state. we will come back here
- each time sourceBuffer updateend() callback will be triggered
- */
- break;
- default:
- break;
- }
- // check/update current fragment
- this._checkFragmentChanged();
- // check buffer
- this._checkBuffer();
- }
- }, {
- key: 'bufferInfo',
- value: function bufferInfo(pos, maxHoleDuration) {
- var media = this.media,
- vbuffered = media.buffered,
- buffered = [],
- i;
- for (i = 0; i < vbuffered.length; i++) {
- buffered.push({ start: vbuffered.start(i), end: vbuffered.end(i) });
- }
- return this.bufferedInfo(buffered, pos, maxHoleDuration);
- }
- }, {
- key: 'bufferedInfo',
- value: function bufferedInfo(buffered, pos, maxHoleDuration) {
- var buffered2 = [],
-
- // bufferStart and bufferEnd are buffer boundaries around current video position
- bufferLen,
- bufferStart,
- bufferEnd,
- bufferStartNext,
- i;
- // sort on buffer.start/smaller end (IE does not always return sorted buffered range)
- buffered.sort(function (a, b) {
- var diff = a.start - b.start;
- if (diff) {
- return diff;
- } else {
- return b.end - a.end;
- }
- });
- // there might be some small holes between buffer time range
- // consider that holes smaller than maxHoleDuration are irrelevant and build another
- // buffer time range representations that discards those holes
- for (i = 0; i < buffered.length; i++) {
- var buf2len = buffered2.length;
- if (buf2len) {
- var buf2end = buffered2[buf2len - 1].end;
- // if small hole (value between 0 or maxHoleDuration ) or overlapping (negative)
- if (buffered[i].start - buf2end < maxHoleDuration) {
- // merge overlapping time ranges
- // update lastRange.end only if smaller than item.end
- // e.g. [ 1, 15] with [ 2,8] => [ 1,15] (no need to modify lastRange.end)
- // whereas [ 1, 8] with [ 2,15] => [ 1,15] ( lastRange should switch from [1,8] to [1,15])
- if (buffered[i].end > buf2end) {
- buffered2[buf2len - 1].end = buffered[i].end;
- }
- } else {
- // big hole
- buffered2.push(buffered[i]);
- }
- } else {
- // first value
- buffered2.push(buffered[i]);
- }
- }
- for (i = 0, bufferLen = 0, bufferStart = bufferEnd = pos; i < buffered2.length; i++) {
- var start = buffered2[i].start,
- end = buffered2[i].end;
- //logger.log('buf start/end:' + buffered.start(i) + '/' + buffered.end(i));
- if (pos + maxHoleDuration >= start && pos < end) {
- // play position is inside this buffer TimeRange, retrieve end of buffer position and buffer length
- bufferStart = start;
- bufferEnd = end;
- bufferLen = bufferEnd - pos;
- } else if (pos + maxHoleDuration < start) {
- bufferStartNext = start;
- }
- }
- return { len: bufferLen, start: bufferStart, end: bufferEnd, nextStart: bufferStartNext };
- }
- }, {
- key: 'getBufferRange',
- value: function getBufferRange(position) {
- var i, range;
- for (i = this.bufferRange.length - 1; i >= 0; i--) {
- range = this.bufferRange[i];
- if (position >= range.start && position <= range.end) {
- return range;
- }
- }
- return null;
- }
- }, {
- key: 'followingBufferRange',
- value: function followingBufferRange(range) {
- if (range) {
- // try to get range of next fragment (500ms after this range)
- return this.getBufferRange(range.end + 0.5);
- }
- return null;
- }
- }, {
- key: 'isBuffered',
- value: function isBuffered(position) {
- var v = this.media,
- buffered = v.buffered;
- for (var i = 0; i < buffered.length; i++) {
- if (position >= buffered.start(i) && position <= buffered.end(i)) {
- return true;
- }
- }
- return false;
- }
- }, {
- key: '_checkFragmentChanged',
- value: function _checkFragmentChanged() {
- var rangeCurrent,
- currentTime,
- video = this.media;
- if (video && video.seeking === false) {
- currentTime = video.currentTime;
- /* if video element is in seeked state, currentTime can only increase.
- (assuming that playback rate is positive ...)
- As sometimes currentTime jumps back to zero after a
- media decode error, check this, to avoid seeking back to
- wrong position after a media decode error
- */
- if (currentTime > video.playbackRate * this.lastCurrentTime) {
- this.lastCurrentTime = currentTime;
- }
- if (this.isBuffered(currentTime)) {
- rangeCurrent = this.getBufferRange(currentTime);
- } else if (this.isBuffered(currentTime + 0.1)) {
- /* ensure that FRAG_CHANGED event is triggered at startup,
- when first video frame is displayed and playback is paused.
- add a tolerance of 100ms, in case current position is not buffered,
- check if current pos+100ms is buffered and use that buffer range
- for FRAG_CHANGED event reporting */
- rangeCurrent = this.getBufferRange(currentTime + 0.1);
- }
- if (rangeCurrent) {
- var fragPlaying = rangeCurrent.frag;
- if (fragPlaying !== this.fragPlaying) {
- this.fragPlaying = fragPlaying;
- this.hls.trigger(_events2['default'].FRAG_CHANGED, { frag: fragPlaying });
- }
- }
- }
- }
-
- /*
- abort any buffer append in progress, and flush all buffered data
- return true once everything has been flushed.
- sourceBuffer.abort() and sourceBuffer.remove() are asynchronous operations
- the idea is to call this function from tick() timer and call it again until all resources have been cleaned
- the timer is rearmed upon sourceBuffer updateend() event, so this should be optimal
- */
- }, {
- key: 'flushBuffer',
- value: function flushBuffer(startOffset, endOffset) {
- var sb, i, bufStart, bufEnd, flushStart, flushEnd;
- //logger.log('flushBuffer,pos/start/end: ' + this.media.currentTime + '/' + startOffset + '/' + endOffset);
- // safeguard to avoid infinite looping
- if (this.flushBufferCounter++ < 2 * this.bufferRange.length && this.sourceBuffer) {
- for (var type in this.sourceBuffer) {
- sb = this.sourceBuffer[type];
- if (!sb.updating) {
- for (i = 0; i < sb.buffered.length; i++) {
- bufStart = sb.buffered.start(i);
- bufEnd = sb.buffered.end(i);
- // workaround firefox not able to properly flush multiple buffered range.
- if (navigator.userAgent.toLowerCase().indexOf('firefox') !== -1 && endOffset === Number.POSITIVE_INFINITY) {
- flushStart = startOffset;
- flushEnd = endOffset;
- } else {
- flushStart = Math.max(bufStart, startOffset);
- flushEnd = Math.min(bufEnd, endOffset);
- }
- /* sometimes sourcebuffer.remove() does not flush
- the exact expected time range.
- to avoid rounding issues/infinite loop,
- only flush buffer range of length greater than 500ms.
- */
- if (flushEnd - flushStart > 0.5) {
- _utilsLogger.logger.log('flush ' + type + ' [' + flushStart + ',' + flushEnd + '], of [' + bufStart + ',' + bufEnd + '], pos:' + this.media.currentTime);
- sb.remove(flushStart, flushEnd);
- return false;
- }
- }
- } else {
- //logger.log('abort ' + type + ' append in progress');
- // this will abort any appending in progress
- //sb.abort();
- return false;
- }
- }
- }
-
- /* after successful buffer flushing, rebuild buffer Range array
- loop through existing buffer range and check if
- corresponding range is still buffered. only push to new array already buffered range
- */
- var newRange = [],
- range;
- for (i = 0; i < this.bufferRange.length; i++) {
- range = this.bufferRange[i];
- if (this.isBuffered((range.start + range.end) / 2)) {
- newRange.push(range);
- }
- }
- this.bufferRange = newRange;
- _utilsLogger.logger.log('buffer flushed');
- // everything flushed !
- return true;
- }
-
- /*
- on immediate level switch :
- - pause playback if playing
- - cancel any pending load request
- - and trigger a buffer flush
- */
- }, {
- key: 'immediateLevelSwitch',
- value: function immediateLevelSwitch() {
- _utilsLogger.logger.log('immediateLevelSwitch');
- if (!this.immediateSwitch) {
- this.immediateSwitch = true;
- this.previouslyPaused = this.media.paused;
- this.media.pause();
- }
- var fragCurrent = this.fragCurrent;
- if (fragCurrent && fragCurrent.loader) {
- fragCurrent.loader.abort();
- }
- this.fragCurrent = null;
- // flush everything
- this.flushBufferCounter = 0;
- this.flushRange.push({ start: 0, end: Number.POSITIVE_INFINITY });
- // trigger a sourceBuffer flush
- this.state = State.BUFFER_FLUSHING;
- // increase fragment load Index to avoid frag loop loading error after buffer flush
- this.fragLoadIdx += 2 * this.config.fragLoadingLoopThreshold;
- // speed up switching, trigger timer function
- this.tick();
- }
-
- /*
- on immediate level switch end, after new fragment has been buffered :
- - nudge video decoder by slightly adjusting video currentTime
- - resume the playback if needed
- */
- }, {
- key: 'immediateLevelSwitchEnd',
- value: function immediateLevelSwitchEnd() {
- this.immediateSwitch = false;
- this.media.currentTime -= 0.0001;
- if (!this.previouslyPaused) {
- this.media.play();
- }
- }
- }, {
- key: 'nextLevelSwitch',
- value: function nextLevelSwitch() {
- /* try to switch ASAP without breaking video playback :
- in order to ensure smooth but quick level switching,
- we need to find the next flushable buffer range
- we should take into account new segment fetch time
- */
- var fetchdelay, currentRange, nextRange;
- currentRange = this.getBufferRange(this.media.currentTime);
- if (currentRange) {
- // flush buffer preceding current fragment (flush until current fragment start offset)
- // minus 1s to avoid video freezing, that could happen if we flush keyframe of current video ...
- this.flushRange.push({ start: 0, end: currentRange.start - 1 });
- }
- if (!this.media.paused) {
- // add a safety delay of 1s
- var nextLevelId = this.hls.nextLoadLevel,
- nextLevel = this.levels[nextLevelId],
- fragLastKbps = this.fragLastKbps;
- if (fragLastKbps && this.fragCurrent) {
- fetchdelay = this.fragCurrent.duration * nextLevel.bitrate / (1000 * fragLastKbps) + 1;
- } else {
- fetchdelay = 0;
- }
- } else {
- fetchdelay = 0;
- }
- //logger.log('fetchdelay:'+fetchdelay);
- // find buffer range that will be reached once new fragment will be fetched
- nextRange = this.getBufferRange(this.media.currentTime + fetchdelay);
- if (nextRange) {
- // we can flush buffer range following this one without stalling playback
- nextRange = this.followingBufferRange(nextRange);
- if (nextRange) {
- // flush position is the start position of this new buffer
- this.flushRange.push({ start: nextRange.start, end: Number.POSITIVE_INFINITY });
- // if we are here, we can also cancel any loading/demuxing in progress, as they are useless
- var fragCurrent = this.fragCurrent;
- if (fragCurrent && fragCurrent.loader) {
- fragCurrent.loader.abort();
- }
- this.fragCurrent = null;
- }
- }
- if (this.flushRange.length) {
- this.flushBufferCounter = 0;
- // trigger a sourceBuffer flush
- this.state = State.BUFFER_FLUSHING;
- // increase fragment load Index to avoid frag loop loading error after buffer flush
- this.fragLoadIdx += 2 * this.config.fragLoadingLoopThreshold;
- // speed up switching, trigger timer function
- this.tick();
- }
- }
- }, {
- key: 'onMediaAttaching',
- value: function onMediaAttaching(event, data) {
- var media = this.media = data.media;
- // setup the media source
- var ms = this.mediaSource = new MediaSource();
- //Media Source listeners
- this.onmso = this.onMediaSourceOpen.bind(this);
- this.onmse = this.onMediaSourceEnded.bind(this);
- this.onmsc = this.onMediaSourceClose.bind(this);
- ms.addEventListener('sourceopen', this.onmso);
- ms.addEventListener('sourceended', this.onmse);
- ms.addEventListener('sourceclose', this.onmsc);
- // link video and media Source
- media.src = URL.createObjectURL(ms);
- // FIXME: this was in code before but onverror was never set! can be removed or fixed?
- //media.addEventListener('error', this.onverror);
- }
- }, {
- key: 'onMediaDetaching',
- value: function onMediaDetaching() {
- var media = this.media;
- if (media && media.ended) {
- _utilsLogger.logger.log('MSE detaching and video ended, reset startPosition');
- this.startPosition = this.lastCurrentTime = 0;
- }
-
- // reset fragment loading counter on MSE detaching to avoid reporting FRAG_LOOP_LOADING_ERROR after error recovery
- var levels = this.levels;
- if (levels) {
- // reset fragment load counter
- levels.forEach(function (level) {
- if (level.details) {
- level.details.fragments.forEach(function (fragment) {
- fragment.loadCounter = undefined;
- });
- }
- });
- }
- var ms = this.mediaSource;
- if (ms) {
- if (ms.readyState === 'open') {
- ms.endOfStream();
- }
- ms.removeEventListener('sourceopen', this.onmso);
- ms.removeEventListener('sourceended', this.onmse);
- ms.removeEventListener('sourceclose', this.onmsc);
- // unlink MediaSource from video tag
- this.media.src = '';
- this.mediaSource = null;
- // remove video listeners
- if (media) {
- media.removeEventListener('seeking', this.onvseeking);
- media.removeEventListener('seeked', this.onvseeked);
- media.removeEventListener('loadedmetadata', this.onvmetadata);
- media.removeEventListener('ended', this.onvended);
- this.onvseeking = this.onvseeked = this.onvmetadata = null;
- }
- this.media = null;
- this.loadedmetadata = false;
- this.stop();
- }
- this.onmso = this.onmse = this.onmsc = null;
- this.hls.trigger(_events2['default'].MEDIA_DETACHED);
- }
- }, {
- key: 'onMediaSeeking',
- value: function onMediaSeeking() {
- if (this.state === State.FRAG_LOADING) {
- // check if currently loaded fragment is inside buffer.
- //if outside, cancel fragment loading, otherwise do nothing
- if (this.bufferInfo(this.media.currentTime, 0.3).len === 0) {
- _utilsLogger.logger.log('seeking outside of buffer while fragment load in progress, cancel fragment load');
- var fragCurrent = this.fragCurrent;
- if (fragCurrent) {
- if (fragCurrent.loader) {
- fragCurrent.loader.abort();
- }
- this.fragCurrent = null;
- }
- this.fragPrevious = null;
- // switch to IDLE state to load new fragment
- this.state = State.IDLE;
- }
- }
- if (this.media) {
- this.lastCurrentTime = this.media.currentTime;
- }
- // avoid reporting fragment loop loading error in case user is seeking several times on same position
- if (this.fragLoadIdx !== undefined) {
- this.fragLoadIdx += 2 * this.config.fragLoadingLoopThreshold;
- }
- // tick to speed up processing
- this.tick();
- }
- }, {
- key: 'onMediaSeeked',
- value: function onMediaSeeked() {
- // tick to speed up FRAGMENT_PLAYING triggering
- this.tick();
- }
- }, {
- key: 'onMediaMetadata',
- value: function onMediaMetadata() {
- if (this.media.currentTime !== this.startPosition) {
- this.media.currentTime = this.startPosition;
- }
- this.loadedmetadata = true;
- this.tick();
- }
- }, {
- key: 'onMediaEnded',
- value: function onMediaEnded() {
- _utilsLogger.logger.log('media ended');
- // reset startPosition and lastCurrentTime to restart playback @ stream beginning
- this.startPosition = this.lastCurrentTime = 0;
- }
- }, {
- key: 'onManifestParsed',
- value: function onManifestParsed(event, data) {
- var aac = false,
- heaac = false,
- codecs;
- data.levels.forEach(function (level) {
- // detect if we have different kind of audio codecs used amongst playlists
- codecs = level.codecs;
- if (codecs) {
- if (codecs.indexOf('mp4a.40.2') !== -1) {
- aac = true;
- }
- if (codecs.indexOf('mp4a.40.5') !== -1) {
- heaac = true;
- }
- }
- });
- this.audiocodecswitch = aac && heaac;
- if (this.audiocodecswitch) {
- _utilsLogger.logger.log('both AAC/HE-AAC audio found in levels; declaring audio codec as HE-AAC');
- }
- this.levels = data.levels;
- this.startLevelLoaded = false;
- this.startFragmentRequested = false;
- if (this.media && this.config.autoStartLoad) {
- this.startLoad();
- }
- }
- }, {
- key: 'onLevelLoaded',
- value: function onLevelLoaded(event, data) {
- var newDetails = data.details,
- newLevelId = data.level,
- curLevel = this.levels[newLevelId],
- duration = newDetails.totalduration;
-
- _utilsLogger.logger.log('level ' + newLevelId + ' loaded [' + newDetails.startSN + ',' + newDetails.endSN + '],duration:' + duration);
-
- if (newDetails.live) {
- var curDetails = curLevel.details;
- if (curDetails) {
- // we already have details for that level, merge them
- _helperLevelHelper2['default'].mergeDetails(curDetails, newDetails);
- if (newDetails.PTSKnown) {
- _utilsLogger.logger.log('live playlist sliding:' + newDetails.fragments[0].start.toFixed(3));
- } else {
- _utilsLogger.logger.log('live playlist - outdated PTS, unknown sliding');
- }
- } else {
- newDetails.PTSKnown = false;
- _utilsLogger.logger.log('live playlist - first load, unknown sliding');
- }
- } else {
- newDetails.PTSKnown = false;
- }
- // override level info
- curLevel.details = newDetails;
- this.hls.trigger(_events2['default'].LEVEL_UPDATED, { details: newDetails, level: newLevelId });
-
- // compute start position
- if (this.startLevelLoaded === false) {
- // if live playlist, set start position to be fragment N-this.config.liveSyncDurationCount (usually 3)
- if (newDetails.live) {
- this.startPosition = Math.max(0, duration - this.config.liveSyncDurationCount * newDetails.targetduration);
- }
- this.nextLoadPosition = this.startPosition;
- this.startLevelLoaded = true;
- }
- // only switch batck to IDLE state if we were waiting for level to start downloading a new fragment
- if (this.state === State.WAITING_LEVEL) {
- this.state = State.IDLE;
- }
- //trigger handler right now
- this.tick();
- }
- }, {
- key: 'onKeyLoaded',
- value: function onKeyLoaded() {
- if (this.state === State.KEY_LOADING) {
- this.state = State.IDLE;
- this.tick();
- }
- }
- }, {
- key: 'onFragLoaded',
- value: function onFragLoaded(event, data) {
- var fragCurrent = this.fragCurrent;
- if (this.state === State.FRAG_LOADING && fragCurrent && data.frag.level === fragCurrent.level && data.frag.sn === fragCurrent.sn) {
- if (this.fragBitrateTest === true) {
- // switch back to IDLE state ... we just loaded a fragment to determine adequate start bitrate and initialize autoswitch algo
- this.state = State.IDLE;
- this.fragBitrateTest = false;
- data.stats.tparsed = data.stats.tbuffered = performance.now();
- this.hls.trigger(_events2['default'].FRAG_BUFFERED, { stats: data.stats, frag: fragCurrent });
- } else {
- this.state = State.PARSING;
- // transmux the MPEG-TS data to ISO-BMFF segments
- this.stats = data.stats;
- var currentLevel = this.levels[this.level],
- details = currentLevel.details,
- duration = details.totalduration,
- start = fragCurrent.start,
- level = fragCurrent.level,
- sn = fragCurrent.sn;
- _utilsLogger.logger.log('Demuxing ' + sn + ' of [' + details.startSN + ' ,' + details.endSN + '],level ' + level);
- this.demuxer.push(data.payload, currentLevel.audioCodec, currentLevel.videoCodec, start, fragCurrent.cc, level, sn, duration, fragCurrent.decryptdata);
- }
- }
- }
- }, {
- key: 'onInitSegment',
- value: function onInitSegment(event, data) {
- if (this.state === State.PARSING) {
- // check if codecs have been explicitely defined in the master playlist for this level;
- // if yes use these ones instead of the ones parsed from the demux
- var audioCodec = this.levels[this.level].audioCodec,
- videoCodec = this.levels[this.level].videoCodec,
- sb;
- //logger.log('playlist level A/V codecs:' + audioCodec + ',' + videoCodec);
- //logger.log('playlist codecs:' + codec);
- // if playlist does not specify codecs, use codecs found while parsing fragment
- if (audioCodec === undefined || data.audiocodec === undefined) {
- audioCodec = data.audioCodec;
- }
- if (videoCodec === undefined || data.videocodec === undefined) {
- videoCodec = data.videoCodec;
- }
- // in case several audio codecs might be used, force HE-AAC for audio (some browsers don't support audio codec switch)
- //don't do it for mono streams ...
- var ua = navigator.userAgent.toLowerCase();
- if (this.audiocodecswitch && data.audioChannelCount !== 1 && ua.indexOf('android') === -1 && ua.indexOf('firefox') === -1) {
- audioCodec = 'mp4a.40.5';
- }
- if (!this.sourceBuffer) {
- this.sourceBuffer = {};
- _utilsLogger.logger.log('selected A/V codecs for sourceBuffers:' + audioCodec + ',' + videoCodec);
- // create source Buffer and link them to MediaSource
- if (audioCodec) {
- sb = this.sourceBuffer.audio = this.mediaSource.addSourceBuffer('video/mp4;codecs=' + audioCodec);
- sb.addEventListener('updateend', this.onsbue);
- sb.addEventListener('error', this.onsbe);
- }
- if (videoCodec) {
- sb = this.sourceBuffer.video = this.mediaSource.addSourceBuffer('video/mp4;codecs=' + videoCodec);
- sb.addEventListener('updateend', this.onsbue);
- sb.addEventListener('error', this.onsbe);
- }
- }
- if (audioCodec) {
- this.mp4segments.push({ type: 'audio', data: data.audioMoov });
- }
- if (videoCodec) {
- this.mp4segments.push({ type: 'video', data: data.videoMoov });
- }
- //trigger handler right now
- this.tick();
- }
- }
- }, {
- key: 'onFragParsing',
- value: function onFragParsing(event, data) {
- if (this.state === State.PARSING) {
- this.tparse2 = Date.now();
- var level = this.levels[this.level],
- frag = this.fragCurrent;
- _utilsLogger.logger.log('parsed data, type/startPTS/endPTS/startDTS/endDTS/nb:' + data.type + '/' + data.startPTS.toFixed(3) + '/' + data.endPTS.toFixed(3) + '/' + data.startDTS.toFixed(3) + '/' + data.endDTS.toFixed(3) + '/' + data.nb);
- var drift = _helperLevelHelper2['default'].updateFragPTS(level.details, frag.sn, data.startPTS, data.endPTS);
- this.hls.trigger(_events2['default'].LEVEL_PTS_UPDATED, { details: level.details, level: this.level, drift: drift });
-
- this.mp4segments.push({ type: data.type, data: data.moof });
- this.mp4segments.push({ type: data.type, data: data.mdat });
- this.nextLoadPosition = data.endPTS;
- this.bufferRange.push({ type: data.type, start: data.startPTS, end: data.endPTS, frag: frag });
-
- //trigger handler right now
- this.tick();
- } else {
- _utilsLogger.logger.warn('not in PARSING state, discarding ' + event);
- }
- }
- }, {
- key: 'onFragParsed',
- value: function onFragParsed() {
- if (this.state === State.PARSING) {
- this.state = State.PARSED;
- this.stats.tparsed = performance.now();
- //trigger handler right now
- this.tick();
- }
- }
- }, {
- key: 'onError',
- value: function onError(event, data) {
- switch (data.details) {
- // abort fragment loading on errors
- case _errors.ErrorDetails.FRAG_LOAD_ERROR:
- case _errors.ErrorDetails.FRAG_LOAD_TIMEOUT:
- case _errors.ErrorDetails.FRAG_LOOP_LOADING_ERROR:
- case _errors.ErrorDetails.LEVEL_LOAD_ERROR:
- case _errors.ErrorDetails.LEVEL_LOAD_TIMEOUT:
- case _errors.ErrorDetails.KEY_LOAD_ERROR:
- case _errors.ErrorDetails.KEY_LOAD_TIMEOUT:
- // if fatal error, stop processing, otherwise move to IDLE to retry loading
- _utilsLogger.logger.warn('buffer controller: ' + data.details + ' while loading frag,switch to ' + (data.fatal ? 'ERROR' : 'IDLE') + ' state ...');
- this.state = data.fatal ? State.ERROR : State.IDLE;
- break;
- default:
- break;
- }
- }
- }, {
- key: 'onSBUpdateEnd',
- value: function onSBUpdateEnd() {
- //trigger handler right now
- if (this.state === State.APPENDING && this.mp4segments.length === 0) {
- var frag = this.fragCurrent,
- stats = this.stats;
- if (frag) {
- this.fragPrevious = frag;
- stats.tbuffered = performance.now();
- this.fragLastKbps = Math.round(8 * stats.length / (stats.tbuffered - stats.tfirst));
- this.hls.trigger(_events2['default'].FRAG_BUFFERED, { stats: stats, frag: frag });
- _utilsLogger.logger.log('media buffered : ' + this.timeRangesToString(this.media.buffered));
-
- // if stream is VOD (not live) and we reach End of Stream
- var levelDetails = this.levels[this.level].details;
- if (levelDetails && !levelDetails.live) {
- // have we buffered last fragment ?
- if (frag.sn === levelDetails.endSN) {
- var mediaSource = this.mediaSource;
- if (mediaSource && mediaSource.readyState === 'open') {
- _utilsLogger.logger.log('all media data available, signal endOfStream() to MediaSource');
- //Notify the media element that it now has all of the media data
- mediaSource.endOfStream();
- }
- }
- }
- this.state = State.IDLE;
- }
- }
- this.tick();
- }
- }, {
- key: '_checkBuffer',
- value: function _checkBuffer() {
- var media = this.media;
- if (media) {
- // compare readyState
- var readyState = media.readyState;
- //logger.log(`readyState:${readyState}`);
- // if ready state different from HAVE_NOTHING (numeric value 0), we are allowed to seek
- if (readyState) {
- // if seek after buffered defined, let's seek if within acceptable range
- var seekAfterBuffered = this.seekAfterBuffered;
- if (seekAfterBuffered) {
- if (media.duration >= seekAfterBuffered) {
- media.currentTime = seekAfterBuffered;
- this.seekAfterBuffered = undefined;
- }
- } else if (readyState < 3) {
- // readyState = 1 or 2
- // HAVE_METADATA (numeric value 1) Enough of the resource has been obtained that the duration of the resource is available.
- // The API will no longer throw an exception when seeking.
- // HAVE_CURRENT_DATA (numeric value 2) Data for the immediate current playback position is available,
- // but either not enough data is available that the user agent could
- // successfully advance the current playback position
- var currentTime = media.currentTime;
- var bufferInfo = this.bufferInfo(currentTime, 0);
- // check if current time is buffered or not
- if (bufferInfo.len === 0) {
- // no buffer available @ currentTime, check if next buffer is close (in a 300 ms range)
- var nextBufferStart = bufferInfo.nextStart;
- if (nextBufferStart && nextBufferStart - currentTime < 0.3) {
- // next buffer is close ! adjust currentTime to nextBufferStart
- // this will ensure effective video decoding
- _utilsLogger.logger.log('adjust currentTime from ' + currentTime + ' to ' + nextBufferStart);
- media.currentTime = nextBufferStart;
- }
- }
- }
- }
- }
- }
- }, {
- key: 'onSBUpdateError',
- value: function onSBUpdateError(event) {
- _utilsLogger.logger.error('sourceBuffer error:' + event);
- this.state = State.ERROR;
- this.hls.trigger(_events2['default'].ERROR, { type: _errors.ErrorTypes.MEDIA_ERROR, details: _errors.ErrorDetails.BUFFER_APPENDING_ERROR, fatal: true, frag: this.fragCurrent });
- }
- }, {
- key: 'timeRangesToString',
- value: function timeRangesToString(r) {
- var log = '',
- len = r.length;
- for (var i = 0; i < len; i++) {
- log += '[' + r.start(i) + ',' + r.end(i) + ']';
- }
- return log;
- }
- }, {
- key: 'onMediaSourceOpen',
- value: function onMediaSourceOpen() {
- _utilsLogger.logger.log('media source opened');
- this.hls.trigger(_events2['default'].MEDIA_ATTACHED);
- this.onvseeking = this.onMediaSeeking.bind(this);
- this.onvseeked = this.onMediaSeeked.bind(this);
- this.onvmetadata = this.onMediaMetadata.bind(this);
- this.onvended = this.onMediaEnded.bind(this);
- var media = this.media;
- media.addEventListener('seeking', this.onvseeking);
- media.addEventListener('seeked', this.onvseeked);
- media.addEventListener('loadedmetadata', this.onvmetadata);
- media.addEventListener('ended', this.onvended);
- if (this.levels && this.config.autoStartLoad) {
- this.startLoad();
- }
- // once received, don't listen anymore to sourceopen event
- this.mediaSource.removeEventListener('sourceopen', this.onmso);
- }
- }, {
- key: 'onMediaSourceClose',
- value: function onMediaSourceClose() {
- _utilsLogger.logger.log('media source closed');
- }
- }, {
- key: 'onMediaSourceEnded',
- value: function onMediaSourceEnded() {
- _utilsLogger.logger.log('media source ended');
- }
- }, {
- key: 'currentLevel',
- get: function get() {
- if (this.media) {
- var range = this.getBufferRange(this.media.currentTime);
- if (range) {
- return range.frag.level;
- }
- }
- return -1;
- }
- }, {
- key: 'nextBufferRange',
- get: function get() {
- if (this.media) {
- // first get end range of current fragment
- return this.followingBufferRange(this.getBufferRange(this.media.currentTime));
- } else {
- return null;
- }
- }
- }, {
- key: 'nextLevel',
- get: function get() {
- var range = this.nextBufferRange;
- if (range) {
- return range.frag.level;
- } else {
- return -1;
- }
- }
- }]);
-
- return MSEMediaController;
-})();
-
-exports['default'] = MSEMediaController;
-module.exports = exports['default'];
-
-},{"../demux/demuxer":8,"../errors":11,"../events":12,"../helper/level-helper":13,"../utils/binary-search":20,"../utils/logger":21}],6:[function(require,module,exports){
-/* inline demuxer.
- * probe fragments and instantiate appropriate demuxer depending on content type (TSDemuxer, AACDemuxer, ...)
- */
-
-'use strict';
-
-Object.defineProperty(exports, '__esModule', {
- value: true
-});
-
-var _createClass = (function () { function defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ('value' in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor; }; })();
-
-function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { 'default': obj }; }
-
-function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError('Cannot call a class as a function'); } }
-
-var _events = require('../events');
-
-var _events2 = _interopRequireDefault(_events);
-
-var _errors = require('../errors');
-
-var _demuxTsdemuxer = require('../demux/tsdemuxer');
-
-var _demuxTsdemuxer2 = _interopRequireDefault(_demuxTsdemuxer);
-
-var DemuxerInline = (function () {
- function DemuxerInline(hls, remuxer) {
- _classCallCheck(this, DemuxerInline);
-
- this.hls = hls;
- this.remuxer = remuxer;
- }
-
- _createClass(DemuxerInline, [{
- key: 'destroy',
- value: function destroy() {
- var demuxer = this.demuxer;
- if (demuxer) {
- demuxer.destroy();
- }
- }
- }, {
- key: 'push',
- value: function push(data, audioCodec, videoCodec, timeOffset, cc, level, sn, duration) {
- var demuxer = this.demuxer;
- if (!demuxer) {
- // probe for content type
- if (_demuxTsdemuxer2['default'].probe(data)) {
- demuxer = this.demuxer = new _demuxTsdemuxer2['default'](this.hls, this.remuxer);
- } else {
- this.hls.trigger(_events2['default'].ERROR, { type: _errors.ErrorTypes.MEDIA_ERROR, details: _errors.ErrorDetails.FRAG_PARSING_ERROR, fatal: true, reason: 'no demux matching with content found' });
- return;
- }
- }
- demuxer.push(data, audioCodec, videoCodec, timeOffset, cc, level, sn, duration);
- }
- }, {
- key: 'remux',
- value: function remux() {
- var demuxer = this.demuxer;
- if (demuxer) {
- demuxer.remux();
- }
- }
- }]);
-
- return DemuxerInline;
-})();
-
-exports['default'] = DemuxerInline;
-module.exports = exports['default'];
-
-},{"../demux/tsdemuxer":10,"../errors":11,"../events":12}],7:[function(require,module,exports){
-/* demuxer web worker.
- * - listen to worker message, and trigger DemuxerInline upon reception of Fragments.
- * - provides MP4 Boxes back to main thread using [transferable objects](https://developers.google.com/web/updates/2011/12/Transferable-Objects-Lightning-Fast) in order to minimize message passing overhead.
- */
-
-'use strict';
-
-Object.defineProperty(exports, '__esModule', {
- value: true
-});
-
-function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { 'default': obj }; }
-
-var _demuxDemuxerInline = require('../demux/demuxer-inline');
-
-var _demuxDemuxerInline2 = _interopRequireDefault(_demuxDemuxerInline);
-
-var _events = require('../events');
-
-var _events2 = _interopRequireDefault(_events);
-
-var _events3 = require('events');
-
-var _events4 = _interopRequireDefault(_events3);
-
-var _remuxMp4Remuxer = require('../remux/mp4-remuxer');
-
-var _remuxMp4Remuxer2 = _interopRequireDefault(_remuxMp4Remuxer);
-
-var DemuxerWorker = function DemuxerWorker(self) {
- // observer setup
- var observer = new _events4['default']();
- observer.trigger = function trigger(event) {
- for (var _len = arguments.length, data = Array(_len > 1 ? _len - 1 : 0), _key = 1; _key < _len; _key++) {
- data[_key - 1] = arguments[_key];
- }
-
- observer.emit.apply(observer, [event, event].concat(data));
- };
-
- observer.off = function off(event) {
- for (var _len2 = arguments.length, data = Array(_len2 > 1 ? _len2 - 1 : 0), _key2 = 1; _key2 < _len2; _key2++) {
- data[_key2 - 1] = arguments[_key2];
- }
-
- observer.removeListener.apply(observer, [event].concat(data));
- };
- self.addEventListener('message', function (ev) {
- //console.log('demuxer cmd:' + ev.data.cmd);
- switch (ev.data.cmd) {
- case 'init':
- self.demuxer = new _demuxDemuxerInline2['default'](observer, _remuxMp4Remuxer2['default']);
- break;
- case 'demux':
- var data = ev.data;
- self.demuxer.push(new Uint8Array(data.data), data.audioCodec, data.videoCodec, data.timeOffset, data.cc, data.level, data.sn, data.duration);
- break;
- default:
- break;
- }
- });
-
- // listen to events triggered by TS Demuxer
- observer.on(_events2['default'].FRAG_PARSING_INIT_SEGMENT, function (ev, data) {
- var objData = { event: ev };
- var objTransferable = [];
- if (data.audioCodec) {
- objData.audioCodec = data.audioCodec;
- objData.audioMoov = data.audioMoov.buffer;
- objData.audioChannelCount = data.audioChannelCount;
- objTransferable.push(objData.audioMoov);
- }
- if (data.videoCodec) {
- objData.videoCodec = data.videoCodec;
- objData.videoMoov = data.videoMoov.buffer;
- objData.videoWidth = data.videoWidth;
- objData.videoHeight = data.videoHeight;
- objTransferable.push(objData.videoMoov);
- }
- // pass moov as transferable object (no copy)
- self.postMessage(objData, objTransferable);
- });
-
- observer.on(_events2['default'].FRAG_PARSING_DATA, function (ev, data) {
- var objData = { event: ev, type: data.type, startPTS: data.startPTS, endPTS: data.endPTS, startDTS: data.startDTS, endDTS: data.endDTS, moof: data.moof.buffer, mdat: data.mdat.buffer, nb: data.nb };
- // pass moof/mdat data as transferable object (no copy)
- self.postMessage(objData, [objData.moof, objData.mdat]);
- });
-
- observer.on(_events2['default'].FRAG_PARSED, function (event) {
- self.postMessage({ event: event });
- });
-
- observer.on(_events2['default'].ERROR, function (event, data) {
- self.postMessage({ event: event, data: data });
- });
-
- observer.on(_events2['default'].FRAG_PARSING_METADATA, function (event, data) {
- var objData = { event: event, samples: data.samples };
- self.postMessage(objData);
- });
-};
-
-exports['default'] = DemuxerWorker;
-module.exports = exports['default'];
-
-},{"../demux/demuxer-inline":6,"../events":12,"../remux/mp4-remuxer":19,"events":1}],8:[function(require,module,exports){
-'use strict';
-
-Object.defineProperty(exports, '__esModule', {
- value: true
-});
-
-var _createClass = (function () { function defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ('value' in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor; }; })();
-
-function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { 'default': obj }; }
-
-function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError('Cannot call a class as a function'); } }
-
-var _events = require('../events');
-
-var _events2 = _interopRequireDefault(_events);
-
-var _errors = require('../errors');
-
-var _demuxDemuxerInline = require('../demux/demuxer-inline');
-
-var _demuxDemuxerInline2 = _interopRequireDefault(_demuxDemuxerInline);
-
-var _demuxDemuxerWorker = require('../demux/demuxer-worker');
-
-var _demuxDemuxerWorker2 = _interopRequireDefault(_demuxDemuxerWorker);
-
-var _utilsLogger = require('../utils/logger');
-
-var _remuxMp4Remuxer = require('../remux/mp4-remuxer');
-
-var _remuxMp4Remuxer2 = _interopRequireDefault(_remuxMp4Remuxer);
-
-var Demuxer = (function () {
- function Demuxer(hls) {
- _classCallCheck(this, Demuxer);
-
- this.hls = hls;
- if (hls.config.enableWorker && typeof Worker !== 'undefined') {
- _utilsLogger.logger.log('demuxing in webworker');
- try {
- var work = require('webworkify');
- this.w = work(_demuxDemuxerWorker2['default']);
- this.onwmsg = this.onWorkerMessage.bind(this);
- this.w.addEventListener('message', this.onwmsg);
- this.w.postMessage({ cmd: 'init' });
- } catch (err) {
- _utilsLogger.logger.error('error while initializing DemuxerWorker, fallback on DemuxerInline');
- this.demuxer = new _demuxDemuxerInline2['default'](hls, _remuxMp4Remuxer2['default']);
- }
- } else {
- this.demuxer = new _demuxDemuxerInline2['default'](hls, _remuxMp4Remuxer2['default']);
- }
- this.demuxInitialized = true;
- }
-
- _createClass(Demuxer, [{
- key: 'destroy',
- value: function destroy() {
- if (this.w) {
- this.w.removeEventListener('message', this.onwmsg);
- this.w.terminate();
- this.w = null;
- } else {
- this.demuxer.destroy();
- }
- }
- }, {
- key: 'pushDecrypted',
- value: function pushDecrypted(data, audioCodec, videoCodec, timeOffset, cc, level, sn, duration) {
- if (this.w) {
- // post fragment payload as transferable objects (no copy)
- this.w.postMessage({ cmd: 'demux', data: data, audioCodec: audioCodec, videoCodec: videoCodec, timeOffset: timeOffset, cc: cc, level: level, sn: sn, duration: duration }, [data]);
- } else {
- this.demuxer.push(new Uint8Array(data), audioCodec, videoCodec, timeOffset, cc, level, sn, duration);
- }
- }
- }, {
- key: 'push',
- value: function push(data, audioCodec, videoCodec, timeOffset, cc, level, sn, duration, decryptdata) {
- if (data.byteLength > 0 && decryptdata != null && decryptdata.key != null && decryptdata.method === 'AES-128') {
- var localthis = this;
- window.crypto.subtle.importKey('raw', decryptdata.key, { name: 'AES-CBC', length: 128 }, false, ['decrypt']).then(function (importedKey) {
- window.crypto.subtle.decrypt({ name: 'AES-CBC', iv: decryptdata.iv.buffer }, importedKey, data).then(function (result) {
- localthis.pushDecrypted(result, audioCodec, videoCodec, timeOffset, cc, level, sn, duration);
- })['catch'](function (err) {
- _utilsLogger.logger.error('decrypting error : ' + err.message);
- localthis.hls.trigger(_events2['default'].ERROR, { type: _errors.ErrorTypes.MEDIA_ERROR, details: _errors.ErrorDetails.FRAG_DECRYPT_ERROR, fatal: true, reason: err.message });
- return;
- });
- })['catch'](function (err) {
- _utilsLogger.logger.error('decrypting error : ' + err.message);
- localthis.hls.trigger(_events2['default'].ERROR, { type: _errors.ErrorTypes.MEDIA_ERROR, details: _errors.ErrorDetails.FRAG_DECRYPT_ERROR, fatal: true, reason: err.message });
- return;
- });
- } else {
- this.pushDecrypted(data, audioCodec, videoCodec, timeOffset, cc, level, sn, duration);
- }
- }
- }, {
- key: 'onWorkerMessage',
- value: function onWorkerMessage(ev) {
- //console.log('onWorkerMessage:' + ev.data.event);
- switch (ev.data.event) {
- case _events2['default'].FRAG_PARSING_INIT_SEGMENT:
- var obj = {};
- if (ev.data.audioMoov) {
- obj.audioMoov = new Uint8Array(ev.data.audioMoov);
- obj.audioCodec = ev.data.audioCodec;
- obj.audioChannelCount = ev.data.audioChannelCount;
- }
- if (ev.data.videoMoov) {
- obj.videoMoov = new Uint8Array(ev.data.videoMoov);
- obj.videoCodec = ev.data.videoCodec;
- obj.videoWidth = ev.data.videoWidth;
- obj.videoHeight = ev.data.videoHeight;
- }
- this.hls.trigger(_events2['default'].FRAG_PARSING_INIT_SEGMENT, obj);
- break;
- case _events2['default'].FRAG_PARSING_DATA:
- this.hls.trigger(_events2['default'].FRAG_PARSING_DATA, {
- moof: new Uint8Array(ev.data.moof),
- mdat: new Uint8Array(ev.data.mdat),
- startPTS: ev.data.startPTS,
- endPTS: ev.data.endPTS,
- startDTS: ev.data.startDTS,
- endDTS: ev.data.endDTS,
- type: ev.data.type,
- nb: ev.data.nb
- });
- break;
- case _events2['default'].FRAG_PARSING_METADATA:
- this.hls.trigger(_events2['default'].FRAG_PARSING_METADATA, {
- samples: ev.data.samples
- });
- break;
- default:
- this.hls.trigger(ev.data.event, ev.data.data);
- break;
- }
- }
- }]);
-
- return Demuxer;
-})();
-
-exports['default'] = Demuxer;
-module.exports = exports['default'];
-
-},{"../demux/demuxer-inline":6,"../demux/demuxer-worker":7,"../errors":11,"../events":12,"../remux/mp4-remuxer":19,"../utils/logger":21,"webworkify":2}],9:[function(require,module,exports){
-/**
- * Parser for exponential Golomb codes, a variable-bitwidth number encoding scheme used by h264.
-*/
-
-'use strict';
-
-Object.defineProperty(exports, '__esModule', {
- value: true
-});
-
-var _createClass = (function () { function defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ('value' in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor; }; })();
-
-function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError('Cannot call a class as a function'); } }
-
-var _utilsLogger = require('../utils/logger');
-
-var ExpGolomb = (function () {
- function ExpGolomb(data) {
- _classCallCheck(this, ExpGolomb);
-
- this.data = data;
- // the number of bytes left to examine in this.data
- this.bytesAvailable = this.data.byteLength;
- // the current word being examined
- this.word = 0; // :uint
- // the number of bits left to examine in the current word
- this.bitsAvailable = 0; // :uint
- }
-
- // ():void
-
- _createClass(ExpGolomb, [{
- key: 'loadWord',
- value: function loadWord() {
- var position = this.data.byteLength - this.bytesAvailable,
- workingBytes = new Uint8Array(4),
- availableBytes = Math.min(4, this.bytesAvailable);
- if (availableBytes === 0) {
- throw new Error('no bytes available');
- }
- workingBytes.set(this.data.subarray(position, position + availableBytes));
- this.word = new DataView(workingBytes.buffer).getUint32(0);
- // track the amount of this.data that has been processed
- this.bitsAvailable = availableBytes * 8;
- this.bytesAvailable -= availableBytes;
- }
-
- // (count:int):void
- }, {
- key: 'skipBits',
- value: function skipBits(count) {
- var skipBytes; // :int
- if (this.bitsAvailable > count) {
- this.word <<= count;
- this.bitsAvailable -= count;
- } else {
- count -= this.bitsAvailable;
- skipBytes = count >> 3;
- count -= skipBytes >> 3;
- this.bytesAvailable -= skipBytes;
- this.loadWord();
- this.word <<= count;
- this.bitsAvailable -= count;
- }
- }
-
- // (size:int):uint
- }, {
- key: 'readBits',
- value: function readBits(size) {
- var bits = Math.min(this.bitsAvailable, size),
- // :uint
- valu = this.word >>> 32 - bits; // :uint
- if (size > 32) {
- _utilsLogger.logger.error('Cannot read more than 32 bits at a time');
- }
- this.bitsAvailable -= bits;
- if (this.bitsAvailable > 0) {
- this.word <<= bits;
- } else if (this.bytesAvailable > 0) {
- this.loadWord();
- }
- bits = size - bits;
- if (bits > 0) {
- return valu << bits | this.readBits(bits);
- } else {
- return valu;
- }
- }
-
- // ():uint
- }, {
- key: 'skipLZ',
- value: function skipLZ() {
- var leadingZeroCount; // :uint
- for (leadingZeroCount = 0; leadingZeroCount < this.bitsAvailable; ++leadingZeroCount) {
- if (0 !== (this.word & 0x80000000 >>> leadingZeroCount)) {
- // the first bit of working word is 1
- this.word <<= leadingZeroCount;
- this.bitsAvailable -= leadingZeroCount;
- return leadingZeroCount;
- }
- }
- // we exhausted word and still have not found a 1
- this.loadWord();
- return leadingZeroCount + this.skipLZ();
- }
-
- // ():void
- }, {
- key: 'skipUEG',
- value: function skipUEG() {
- this.skipBits(1 + this.skipLZ());
- }
-
- // ():void
- }, {
- key: 'skipEG',
- value: function skipEG() {
- this.skipBits(1 + this.skipLZ());
- }
-
- // ():uint
- }, {
- key: 'readUEG',
- value: function readUEG() {
- var clz = this.skipLZ(); // :uint
- return this.readBits(clz + 1) - 1;
- }
-
- // ():int
- }, {
- key: 'readEG',
- value: function readEG() {
- var valu = this.readUEG(); // :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
- } else {
- return -1 * (valu >>> 1); // divide by two then make it negative
- }
- }
-
- // Some convenience functions
- // :Boolean
- }, {
- key: 'readBoolean',
- value: function readBoolean() {
- return 1 === this.readBits(1);
- }
-
- // ():int
- }, {
- key: 'readUByte',
- value: function readUByte() {
- return this.readBits(8);
- }
-
- /**
- * 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
- * @see Recommendation ITU-T H.264, Section 7.3.2.1.1.1
- */
- }, {
- key: 'skipScalingList',
- value: function skipScalingList(count) {
- var lastScale = 8,
- nextScale = 8,
- j,
- deltaScale;
- for (j = 0; j < count; j++) {
- if (nextScale !== 0) {
- deltaScale = this.readEG();
- nextScale = (lastScale + deltaScale + 256) % 256;
- }
- lastScale = nextScale === 0 ? lastScale : nextScale;
- }
- }
-
- /**
- * 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.
- */
- }, {
- key: 'readSPS',
- value: function readSPS() {
- var frameCropLeftOffset = 0,
- frameCropRightOffset = 0,
- frameCropTopOffset = 0,
- frameCropBottomOffset = 0,
- profileIdc,
- profileCompat,
- levelIdc,
- numRefFramesInPicOrderCntCycle,
- picWidthInMbsMinus1,
- picHeightInMapUnitsMinus1,
- frameMbsOnlyFlag,
- scalingListCount,
- i;
- this.readUByte();
- profileIdc = this.readUByte(); // profile_idc
- profileCompat = this.readBits(5); // constraint_set[0-4]_flag, u(5)
- this.skipBits(3); // reserved_zero_3bits u(3),
- levelIdc = this.readUByte(); //level_idc u(8)
- this.skipUEG(); // seq_parameter_set_id
- // some profiles have more optional data we don't need
- if (profileIdc === 100 || profileIdc === 110 || profileIdc === 122 || profileIdc === 144) {
- var chromaFormatIdc = this.readUEG();
- if (chromaFormatIdc === 3) {
- this.skipBits(1); // separate_colour_plane_flag
- }
- this.skipUEG(); // bit_depth_luma_minus8
- this.skipUEG(); // bit_depth_chroma_minus8
- this.skipBits(1); // qpprime_y_zero_transform_bypass_flag
- if (this.readBoolean()) {
- // seq_scaling_matrix_present_flag
- scalingListCount = chromaFormatIdc !== 3 ? 8 : 12;
- for (i = 0; i < scalingListCount; i++) {
- if (this.readBoolean()) {
- // seq_scaling_list_present_flag[ i ]
- if (i < 6) {
- this.skipScalingList(16);
- } else {
- this.skipScalingList(64);
- }
- }
- }
- }
- }
- this.skipUEG(); // log2_max_frame_num_minus4
- var picOrderCntType = this.readUEG();
- if (picOrderCntType === 0) {
- this.readUEG(); //log2_max_pic_order_cnt_lsb_minus4
- } else if (picOrderCntType === 1) {
- this.skipBits(1); // delta_pic_order_always_zero_flag
- this.skipEG(); // offset_for_non_ref_pic
- this.skipEG(); // offset_for_top_to_bottom_field
- numRefFramesInPicOrderCntCycle = this.readUEG();
- for (i = 0; i < numRefFramesInPicOrderCntCycle; i++) {
- this.skipEG(); // offset_for_ref_frame[ i ]
- }
- }
- this.skipUEG(); // max_num_ref_frames
- this.skipBits(1); // gaps_in_frame_num_value_allowed_flag
- picWidthInMbsMinus1 = this.readUEG();
- picHeightInMapUnitsMinus1 = this.readUEG();
- frameMbsOnlyFlag = this.readBits(1);
- if (frameMbsOnlyFlag === 0) {
- this.skipBits(1); // mb_adaptive_frame_field_flag
- }
- this.skipBits(1); // direct_8x8_inference_flag
- if (this.readBoolean()) {
- // frame_cropping_flag
- frameCropLeftOffset = this.readUEG();
- frameCropRightOffset = this.readUEG();
- frameCropTopOffset = this.readUEG();
- frameCropBottomOffset = this.readUEG();
- }
- return {
- width: (picWidthInMbsMinus1 + 1) * 16 - frameCropLeftOffset * 2 - frameCropRightOffset * 2,
- height: (2 - frameMbsOnlyFlag) * (picHeightInMapUnitsMinus1 + 1) * 16 - frameCropTopOffset * 2 - frameCropBottomOffset * 2
- };
- }
- }, {
- key: 'readSliceType',
- value: function readSliceType() {
- // skip NALu type
- this.readUByte();
- // discard first_mb_in_slice
- this.readUEG();
- // return slice_type
- return this.readUEG();
- }
- }]);
-
- return ExpGolomb;
-})();
-
-exports['default'] = ExpGolomb;
-module.exports = exports['default'];
-
-},{"../utils/logger":21}],10:[function(require,module,exports){
-/**
- * highly optimized TS demuxer:
- * parse PAT, PMT
- * extract PES packet from audio and video PIDs
- * extract AVC/H264 NAL units and AAC/ADTS samples from PES packet
- * trigger the remuxer upon parsing completion
- * it also tries to workaround as best as it can audio codec switch (HE-AAC to AAC and vice versa), without having to restart the MediaSource.
- * it also controls the remuxing process :
- * upon discontinuity or level switch detection, it will also notifies the remuxer so that it can reset its state.
-*/
-
-'use strict';
-
-Object.defineProperty(exports, '__esModule', {
- value: true
-});
-
-var _createClass = (function () { function defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ('value' in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor; }; })();
-
-function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { 'default': obj }; }
-
-function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError('Cannot call a class as a function'); } }
-
-var _events = require('../events');
-
-var _events2 = _interopRequireDefault(_events);
-
-var _expGolomb = require('./exp-golomb');
-
-var _expGolomb2 = _interopRequireDefault(_expGolomb);
-
-// import Hex from '../utils/hex';
-
-var _utilsLogger = require('../utils/logger');
-
-var _errors = require('../errors');
-
-var TSDemuxer = (function () {
- function TSDemuxer(observer, remuxerClass) {
- _classCallCheck(this, TSDemuxer);
-
- this.observer = observer;
- this.remuxerClass = remuxerClass;
- this.lastCC = 0;
- this.PES_TIMESCALE = 90000;
- this.remuxer = new this.remuxerClass(observer);
- }
-
- _createClass(TSDemuxer, [{
- key: 'switchLevel',
- value: function switchLevel() {
- this.pmtParsed = false;
- this._pmtId = -1;
- this._avcTrack = { type: 'video', id: -1, sequenceNumber: 0, samples: [], len: 0, nbNalu: 0 };
- this._aacTrack = { type: 'audio', id: -1, sequenceNumber: 0, samples: [], len: 0 };
- this._id3Track = { type: 'id3', id: -1, sequenceNumber: 0, samples: [], len: 0 };
- this.remuxer.switchLevel();
- }
- }, {
- key: 'insertDiscontinuity',
- value: function insertDiscontinuity() {
- this.switchLevel();
- this.remuxer.insertDiscontinuity();
- }
-
- // feed incoming data to the front of the parsing pipeline
- }, {
- key: 'push',
- value: function push(data, audioCodec, videoCodec, timeOffset, cc, level, sn, duration) {
- var avcData,
- aacData,
- id3Data,
- start,
- len = data.length,
- stt,
- pid,
- atf,
- offset;
- this.audioCodec = audioCodec;
- this.videoCodec = videoCodec;
- this.timeOffset = timeOffset;
- this._duration = duration;
- this.contiguous = false;
- if (cc !== this.lastCC) {
- _utilsLogger.logger.log('discontinuity detected');
- this.insertDiscontinuity();
- this.lastCC = cc;
- } else if (level !== this.lastLevel) {
- _utilsLogger.logger.log('level switch detected');
- this.switchLevel();
- this.lastLevel = level;
- } else if (sn === this.lastSN + 1) {
- this.contiguous = true;
- }
- this.lastSN = sn;
-
- if (!this.contiguous) {
- // flush any partial content
- this.aacOverFlow = null;
- }
-
- var pmtParsed = this.pmtParsed,
- avcId = this._avcTrack.id,
- aacId = this._aacTrack.id,
- id3Id = this._id3Track.id;
- // loop through TS packets
- for (start = 0; start < len; start += 188) {
- if (data[start] === 0x47) {
- stt = !!(data[start + 1] & 0x40);
- // pid is a 13-bit field starting at the last bit of TS[1]
- pid = ((data[start + 1] & 0x1f) << 8) + data[start + 2];
- atf = (data[start + 3] & 0x30) >> 4;
- // if an adaption field is present, its length is specified by the fifth byte of the TS packet header.
- if (atf > 1) {
- offset = start + 5 + data[start + 4];
- // continue if there is only adaptation field
- if (offset === start + 188) {
- continue;
- }
- } else {
- offset = start + 4;
- }
- if (pmtParsed) {
- if (pid === avcId) {
- if (stt) {
- if (avcData) {
- this._parseAVCPES(this._parsePES(avcData));
- }
- avcData = { data: [], size: 0 };
- }
- if (avcData) {
- avcData.data.push(data.subarray(offset, start + 188));
- avcData.size += start + 188 - offset;
- }
- } else if (pid === aacId) {
- if (stt) {
- if (aacData) {
- this._parseAACPES(this._parsePES(aacData));
- }
- aacData = { data: [], size: 0 };
- }
- if (aacData) {
- aacData.data.push(data.subarray(offset, start + 188));
- aacData.size += start + 188 - offset;
- }
- } else if (pid === id3Id) {
- if (stt) {
- if (id3Data) {
- this._parseID3PES(this._parsePES(id3Data));
- }
- id3Data = { data: [], size: 0 };
- }
- if (id3Data) {
- id3Data.data.push(data.subarray(offset, start + 188));
- id3Data.size += start + 188 - offset;
- }
- }
- } else {
- if (stt) {
- offset += data[offset] + 1;
- }
- if (pid === 0) {
- this._parsePAT(data, offset);
- } else if (pid === this._pmtId) {
- this._parsePMT(data, offset);
- pmtParsed = this.pmtParsed = true;
- avcId = this._avcTrack.id;
- aacId = this._aacTrack.id;
- id3Id = this._id3Track.id;
- }
- }
- } else {
- this.observer.trigger(_events2['default'].ERROR, { type: _errors.ErrorTypes.MEDIA_ERROR, details: _errors.ErrorDetails.FRAG_PARSING_ERROR, fatal: false, reason: 'TS packet did not start with 0x47' });
- }
- }
- // parse last PES packet
- if (avcData) {
- this._parseAVCPES(this._parsePES(avcData));
- }
- if (aacData) {
- this._parseAACPES(this._parsePES(aacData));
- }
- if (id3Data) {
- this._parseID3PES(this._parsePES(id3Data));
- }
- this.remux();
- }
- }, {
- key: 'remux',
- value: function remux() {
- this.remuxer.remux(this._aacTrack, this._avcTrack, this._id3Track, this.timeOffset, this.contiguous);
- }
- }, {
- key: 'destroy',
- value: function destroy() {
- this.switchLevel();
- this._initPTS = this._initDTS = undefined;
- this._duration = 0;
- }
- }, {
- key: '_parsePAT',
- value: function _parsePAT(data, offset) {
- // skip the PSI header and parse the first PMT entry
- this._pmtId = (data[offset + 10] & 0x1F) << 8 | data[offset + 11];
- //logger.log('PMT PID:' + this._pmtId);
- }
- }, {
- key: '_parsePMT',
- value: function _parsePMT(data, offset) {
- var sectionLength, tableEnd, programInfoLength, pid;
- sectionLength = (data[offset + 1] & 0x0f) << 8 | data[offset + 2];
- tableEnd = offset + 3 + sectionLength - 4;
- // to determine where the table is, we have to figure out how
- // long the program info descriptors are
- programInfoLength = (data[offset + 10] & 0x0f) << 8 | data[offset + 11];
- // advance the offset to the first entry in the mapping table
- offset += 12 + programInfoLength;
- while (offset < tableEnd) {
- pid = (data[offset + 1] & 0x1F) << 8 | data[offset + 2];
- switch (data[offset]) {
- // ISO/IEC 13818-7 ADTS AAC (MPEG-2 lower bit-rate audio)
- case 0x0f:
- //logger.log('AAC PID:' + pid);
- this._aacTrack.id = pid;
- break;
- // Packetized metadata (ID3)
- case 0x15:
- //logger.log('ID3 PID:' + pid);
- this._id3Track.id = pid;
- break;
- // ITU-T Rec. H.264 and ISO/IEC 14496-10 (lower bit-rate video)
- case 0x1b:
- //logger.log('AVC PID:' + pid);
- this._avcTrack.id = pid;
- break;
- default:
- _utilsLogger.logger.log('unkown stream type:' + data[offset]);
- break;
- }
- // move to the next table entry
- // skip past the elementary stream descriptors, if present
- offset += ((data[offset + 3] & 0x0F) << 8 | data[offset + 4]) + 5;
- }
- }
- }, {
- key: '_parsePES',
- value: function _parsePES(stream) {
- var i = 0,
- frag,
- pesFlags,
- pesPrefix,
- pesLen,
- pesHdrLen,
- pesData,
- pesPts,
- pesDts,
- payloadStartOffset;
- //retrieve PTS/DTS from first fragment
- frag = stream.data[0];
- pesPrefix = (frag[0] << 16) + (frag[1] << 8) + frag[2];
- if (pesPrefix === 1) {
- pesLen = (frag[4] << 8) + frag[5];
- pesFlags = frag[7];
- if (pesFlags & 0xC0) {
- /* PES header described here : http://dvd.sourceforge.net/dvdinfo/pes-hdr.html
- as PTS / DTS is 33 bit we cannot use bitwise operator in JS,
- as Bitwise operators treat their operands as a sequence of 32 bits */
- pesPts = (frag[9] & 0x0E) * 536870912 + // 1 << 29
- (frag[10] & 0xFF) * 4194304 + // 1 << 22
- (frag[11] & 0xFE) * 16384 + // 1 << 14
- (frag[12] & 0xFF) * 128 + // 1 << 7
- (frag[13] & 0xFE) / 2;
- // check if greater than 2^32 -1
- if (pesPts > 4294967295) {
- // decrement 2^33
- pesPts -= 8589934592;
- }
- if (pesFlags & 0x40) {
- pesDts = (frag[14] & 0x0E) * 536870912 + // 1 << 29
- (frag[15] & 0xFF) * 4194304 + // 1 << 22
- (frag[16] & 0xFE) * 16384 + // 1 << 14
- (frag[17] & 0xFF) * 128 + // 1 << 7
- (frag[18] & 0xFE) / 2;
- // check if greater than 2^32 -1
- if (pesDts > 4294967295) {
- // decrement 2^33
- pesDts -= 8589934592;
- }
- } else {
- pesDts = pesPts;
- }
- }
- pesHdrLen = frag[8];
- payloadStartOffset = pesHdrLen + 9;
- // trim PES header
- stream.data[0] = stream.data[0].subarray(payloadStartOffset);
- stream.size -= payloadStartOffset;
- //reassemble PES packet
- pesData = new Uint8Array(stream.size);
- // reassemble the packet
- while (stream.data.length) {
- frag = stream.data.shift();
- pesData.set(frag, i);
- i += frag.byteLength;
- }
- return { data: pesData, pts: pesPts, dts: pesDts, len: pesLen };
- } else {
- return null;
- }
- }
- }, {
- key: '_parseAVCPES',
- value: function _parseAVCPES(pes) {
- var _this = this;
-
- var track = this._avcTrack,
- samples = track.samples,
- units = this._parseAVCNALu(pes.data),
- units2 = [],
- debug = false,
- key = false,
- length = 0,
- avcSample,
- push;
- // no NALu found
- if (units.length === 0 && samples.length > 0) {
- // append pes.data to previous NAL unit
- var lastavcSample = samples[samples.length - 1];
- var lastUnit = lastavcSample.units.units[lastavcSample.units.units.length - 1];
- var tmp = new Uint8Array(lastUnit.data.byteLength + pes.data.byteLength);
- tmp.set(lastUnit.data, 0);
- tmp.set(pes.data, lastUnit.data.byteLength);
- lastUnit.data = tmp;
- lastavcSample.units.length += pes.data.byteLength;
- track.len += pes.data.byteLength;
- }
- //free pes.data to save up some memory
- pes.data = null;
- var debugString = '';
- units.forEach(function (unit) {
- switch (unit.type) {
- //NDR
- case 1:
- push = true;
- if (debug) {
- debugString += 'NDR ';
- }
- break;
- //IDR
- case 5:
- push = true;
- if (debug) {
- debugString += 'IDR ';
- }
- key = true;
- break;
- case 6:
- push = true;
- if (debug) {
- debugString += 'SEI ';
- }
- break;
- //SPS
- case 7:
- push = true;
- if (debug) {
- debugString += 'SPS ';
- }
- if (!track.sps) {
- var expGolombDecoder = new _expGolomb2['default'](unit.data);
- var config = expGolombDecoder.readSPS();
- track.width = config.width;
- track.height = config.height;
- track.sps = [unit.data];
- track.timescale = _this.remuxer.timescale;
- track.duration = _this.remuxer.timescale * _this._duration;
- var codecarray = unit.data.subarray(1, 4);
- var codecstring = 'avc1.';
- for (var i = 0; i < 3; i++) {
- var h = codecarray[i].toString(16);
- if (h.length < 2) {
- h = '0' + h;
- }
- codecstring += h;
- }
- track.codec = codecstring;
- }
- break;
- //PPS
- case 8:
- push = true;
- if (debug) {
- debugString += 'PPS ';
- }
- if (!track.pps) {
- track.pps = [unit.data];
- }
- break;
- case 9:
- push = true;
- if (debug) {
- debugString += 'AUD ';
- }
- break;
- default:
- push = false;
- debugString += 'unknown NAL ' + unit.type + ' ';
- break;
- }
- if (push) {
- units2.push(unit);
- length += unit.data.byteLength;
- }
- });
- if (debug || debugString.length) {
- _utilsLogger.logger.log(debugString);
- }
- //build sample from PES
- // Annex B to MP4 conversion to be done
- if (units2.length) {
- // only push AVC sample if keyframe already found. browsers expect a keyframe at first to start decoding
- if (key === true || track.sps) {
- avcSample = { units: { units: units2, length: length }, pts: pes.pts, dts: pes.dts, key: key };
- samples.push(avcSample);
- track.len += length;
- track.nbNalu += units2.length;
- }
- }
- }
- }, {
- key: '_parseAVCNALu',
- value: function _parseAVCNALu(array) {
- var i = 0,
- len = array.byteLength,
- value,
- overflow,
- state = 0;
- var units = [],
- unit,
- unitType,
- lastUnitStart,
- lastUnitType;
- //logger.log('PES:' + Hex.hexDump(array));
- while (i < len) {
- value = array[i++];
- // finding 3 or 4-byte start codes (00 00 01 OR 00 00 00 01)
- switch (state) {
- case 0:
- if (value === 0) {
- state = 1;
- }
- break;
- case 1:
- if (value === 0) {
- state = 2;
- } else {
- state = 0;
- }
- break;
- case 2:
- case 3:
- if (value === 0) {
- state = 3;
- } else if (value === 1) {
- unitType = array[i] & 0x1f;
- //logger.log('find NALU @ offset:' + i + ',type:' + unitType);
- if (lastUnitStart) {
- unit = { data: array.subarray(lastUnitStart, i - state - 1), type: lastUnitType };
- //logger.log('pushing NALU, type/size:' + unit.type + '/' + unit.data.byteLength);
- units.push(unit);
- } else {
- // If NAL units are not starting right at the beginning of the PES packet, push preceding data into previous NAL unit.
- overflow = i - state - 1;
- if (overflow) {
- //logger.log('first NALU found with overflow:' + overflow);
- if (this._avcTrack.samples.length) {
- var lastavcSample = this._avcTrack.samples[this._avcTrack.samples.length - 1];
- var lastUnit = lastavcSample.units.units[lastavcSample.units.units.length - 1];
- var tmp = new Uint8Array(lastUnit.data.byteLength + overflow);
- tmp.set(lastUnit.data, 0);
- tmp.set(array.subarray(0, overflow), lastUnit.data.byteLength);
- lastUnit.data = tmp;
- lastavcSample.units.length += overflow;
- this._avcTrack.len += overflow;
- }
- }
- }
- lastUnitStart = i;
- lastUnitType = unitType;
- if (unitType === 1 || unitType === 5) {
- // OPTI !!! if IDR/NDR unit, consider it is last NALu
- i = len;
- }
- state = 0;
- } else {
- state = 0;
- }
- break;
- default:
- break;
- }
- }
- if (lastUnitStart) {
- unit = { data: array.subarray(lastUnitStart, len), type: lastUnitType };
- units.push(unit);
- //logger.log('pushing NALU, type/size:' + unit.type + '/' + unit.data.byteLength);
- }
- return units;
- }
- }, {
- key: '_parseAACPES',
- value: function _parseAACPES(pes) {
- var track = this._aacTrack,
- aacSample,
- data = pes.data,
- config,
- adtsFrameSize,
- adtsStartOffset,
- adtsHeaderLen,
- stamp,
- nbSamples,
- len;
- if (this.aacOverFlow) {
- var tmp = new Uint8Array(this.aacOverFlow.byteLength + data.byteLength);
- tmp.set(this.aacOverFlow, 0);
- tmp.set(data, this.aacOverFlow.byteLength);
- data = tmp;
- }
- // look for ADTS header (0xFFFx)
- for (adtsStartOffset = 0, len = data.length; adtsStartOffset < len - 1; adtsStartOffset++) {
- if (data[adtsStartOffset] === 0xff && (data[adtsStartOffset + 1] & 0xf0) === 0xf0) {
- break;
- }
- }
- // if ADTS header does not start straight from the beginning of the PES payload, raise an error
- if (adtsStartOffset) {
- var reason, fatal;
- if (adtsStartOffset < len - 1) {
- reason = 'AAC PES did not start with ADTS header,offset:' + adtsStartOffset;
- fatal = false;
- } else {
- reason = 'no ADTS header found in AAC PES';
- fatal = true;
- }
- this.observer.trigger(_events2['default'].ERROR, { type: _errors.ErrorTypes.MEDIA_ERROR, details: _errors.ErrorDetails.FRAG_PARSING_ERROR, fatal: fatal, reason: reason });
- if (fatal) {
- return;
- }
- }
- if (!track.audiosamplerate) {
- config = this._ADTStoAudioConfig(data, adtsStartOffset, this.audioCodec);
- track.config = config.config;
- track.audiosamplerate = config.samplerate;
- track.channelCount = config.channelCount;
- track.codec = config.codec;
- track.timescale = this.remuxer.timescale;
- track.duration = this.remuxer.timescale * this._duration;
- _utilsLogger.logger.log('parsed codec:' + track.codec + ',rate:' + config.samplerate + ',nb channel:' + config.channelCount);
- }
- nbSamples = 0;
- while (adtsStartOffset + 5 < len) {
- // retrieve frame size
- adtsFrameSize = (data[adtsStartOffset + 3] & 0x03) << 11;
- // byte 4
- adtsFrameSize |= data[adtsStartOffset + 4] << 3;
- // byte 5
- adtsFrameSize |= (data[adtsStartOffset + 5] & 0xE0) >>> 5;
- adtsHeaderLen = !!(data[adtsStartOffset + 1] & 0x01) ? 7 : 9;
- adtsFrameSize -= adtsHeaderLen;
- stamp = Math.round(pes.pts + nbSamples * 1024 * this.PES_TIMESCALE / track.audiosamplerate);
- //stamp = pes.pts;
- //console.log('AAC frame, offset/length/pts:' + (adtsStartOffset+7) + '/' + adtsFrameSize + '/' + stamp.toFixed(0));
- if (adtsFrameSize > 0 && adtsStartOffset + adtsHeaderLen + adtsFrameSize <= len) {
- aacSample = { unit: data.subarray(adtsStartOffset + adtsHeaderLen, adtsStartOffset + adtsHeaderLen + adtsFrameSize), pts: stamp, dts: stamp };
- this._aacTrack.samples.push(aacSample);
- this._aacTrack.len += adtsFrameSize;
- adtsStartOffset += adtsFrameSize + adtsHeaderLen;
- nbSamples++;
- // look for ADTS header (0xFFFx)
- for (; adtsStartOffset < len - 1; adtsStartOffset++) {
- if (data[adtsStartOffset] === 0xff && (data[adtsStartOffset + 1] & 0xf0) === 0xf0) {
- break;
- }
- }
- } else {
- break;
- }
- }
- if (adtsStartOffset < len) {
- this.aacOverFlow = data.subarray(adtsStartOffset, len);
- } else {
- this.aacOverFlow = null;
- }
- }
- }, {
- key: '_ADTStoAudioConfig',
- value: function _ADTStoAudioConfig(data, offset, audioCodec) {
- var adtsObjectType,
- // :int
- adtsSampleingIndex,
- // :int
- adtsExtensionSampleingIndex,
- // :int
- adtsChanelConfig,
- // :int
- config,
- userAgent = navigator.userAgent.toLowerCase(),
- adtsSampleingRates = [96000, 88200, 64000, 48000, 44100, 32000, 24000, 22050, 16000, 12000, 11025, 8000, 7350];
- // byte 2
- adtsObjectType = ((data[offset + 2] & 0xC0) >>> 6) + 1;
- adtsSampleingIndex = (data[offset + 2] & 0x3C) >>> 2;
- if (adtsSampleingIndex > adtsSampleingRates.length - 1) {
- this.observer.trigger(_events2['default'].ERROR, { type: _errors.ErrorTypes.MEDIA_ERROR, details: _errors.ErrorDetails.FRAG_PARSING_ERROR, fatal: true, reason: 'invalid ADTS sampling index:' + adtsSampleingIndex });
- return;
- }
- adtsChanelConfig = (data[offset + 2] & 0x01) << 2;
- // byte 3
- adtsChanelConfig |= (data[offset + 3] & 0xC0) >>> 6;
- _utilsLogger.logger.log('manifest codec:' + audioCodec + ',ADTS data:type:' + adtsObjectType + ',sampleingIndex:' + adtsSampleingIndex + '[' + adtsSampleingRates[adtsSampleingIndex] + 'kHz],channelConfig:' + adtsChanelConfig);
- // firefox: freq less than 24kHz = AAC SBR (HE-AAC)
- if (userAgent.indexOf('firefox') !== -1) {
- if (adtsSampleingIndex >= 6) {
- adtsObjectType = 5;
- config = new Array(4);
- // HE-AAC uses SBR (Spectral Band Replication) , high frequencies are constructed from low frequencies
- // there is a factor 2 between frame sample rate and output sample rate
- // multiply frequency by 2 (see table below, equivalent to substract 3)
- adtsExtensionSampleingIndex = adtsSampleingIndex - 3;
- } else {
- adtsObjectType = 2;
- config = new Array(2);
- adtsExtensionSampleingIndex = adtsSampleingIndex;
- }
- // Android : always use AAC
- } else if (userAgent.indexOf('android') !== -1) {
- adtsObjectType = 2;
- config = new Array(2);
- adtsExtensionSampleingIndex = adtsSampleingIndex;
- } else {
- /* for other browsers (chrome ...)
- always force audio type to be HE-AAC SBR, as some browsers do not support audio codec switch properly (like Chrome ...)
- */
- adtsObjectType = 5;
- config = new Array(4);
- // if (manifest codec is HE-AAC) OR (manifest codec not specified AND frequency less than 24kHz)
- if (audioCodec && audioCodec.indexOf('mp4a.40.5') !== -1 || !audioCodec && adtsSampleingIndex >= 6) {
- // HE-AAC uses SBR (Spectral Band Replication) , high frequencies are constructed from low frequencies
- // there is a factor 2 between frame sample rate and output sample rate
- // multiply frequency by 2 (see table below, equivalent to substract 3)
- adtsExtensionSampleingIndex = adtsSampleingIndex - 3;
- } else {
- // if (manifest codec is AAC) AND (frequency less than 24kHz OR nb channel is 1)
- if (audioCodec && audioCodec.indexOf('mp4a.40.2') !== -1 && (adtsSampleingIndex >= 6 || adtsChanelConfig === 1)) {
- adtsObjectType = 2;
- config = new Array(2);
- }
- adtsExtensionSampleingIndex = adtsSampleingIndex;
- }
- }
- /* refer to http://wiki.multimedia.cx/index.php?title=MPEG-4_Audio#Audio_Specific_Config
- ISO 14496-3 (AAC).pdf - Table 1.13 — Syntax of AudioSpecificConfig()
- Audio Profile / Audio Object Type
- 0: Null
- 1: AAC Main
- 2: AAC LC (Low Complexity)
- 3: AAC SSR (Scalable Sample Rate)
- 4: AAC LTP (Long Term Prediction)
- 5: SBR (Spectral Band Replication)
- 6: AAC Scalable
- sampling freq
- 0: 96000 Hz
- 1: 88200 Hz
- 2: 64000 Hz
- 3: 48000 Hz
- 4: 44100 Hz
- 5: 32000 Hz
- 6: 24000 Hz
- 7: 22050 Hz
- 8: 16000 Hz
- 9: 12000 Hz
- 10: 11025 Hz
- 11: 8000 Hz
- 12: 7350 Hz
- 13: Reserved
- 14: Reserved
- 15: frequency is written explictly
- Channel Configurations
- These are the channel configurations:
- 0: Defined in AOT Specifc Config
- 1: 1 channel: front-center
- 2: 2 channels: front-left, front-right
- */
- // audioObjectType = profile => profile, the MPEG-4 Audio Object Type minus 1
- config[0] = adtsObjectType << 3;
- // samplingFrequencyIndex
- config[0] |= (adtsSampleingIndex & 0x0E) >> 1;
- config[1] |= (adtsSampleingIndex & 0x01) << 7;
- // channelConfiguration
- config[1] |= adtsChanelConfig << 3;
- if (adtsObjectType === 5) {
- // adtsExtensionSampleingIndex
- config[1] |= (adtsExtensionSampleingIndex & 0x0E) >> 1;
- config[2] = (adtsExtensionSampleingIndex & 0x01) << 7;
- // adtsObjectType (force to 2, chrome is checking that object type is less than 5 ???
- // https://chromium.googlesource.com/chromium/src.git/+/master/media/formats/mp4/aac.cc
- config[2] |= 2 << 2;
- config[3] = 0;
- }
- return { config: config, samplerate: adtsSampleingRates[adtsSampleingIndex], channelCount: adtsChanelConfig, codec: 'mp4a.40.' + adtsObjectType };
- }
- }, {
- key: '_parseID3PES',
- value: function _parseID3PES(pes) {
- this._id3Track.samples.push(pes);
- }
- }], [{
- key: 'probe',
- value: function probe(data) {
- // a TS fragment should contain at least 3 TS packets, a PAT, a PMT, and one PID, each starting with 0x47
- if (data.length >= 3 * 188 && data[0] === 0x47 && data[188] === 0x47 && data[2 * 188] === 0x47) {
- return true;
- } else {
- return false;
- }
- }
- }]);
-
- return TSDemuxer;
-})();
-
-exports['default'] = TSDemuxer;
-module.exports = exports['default'];
-
-},{"../errors":11,"../events":12,"../utils/logger":21,"./exp-golomb":9}],11:[function(require,module,exports){
-'use strict';
-
-Object.defineProperty(exports, '__esModule', {
- value: true
-});
-var ErrorTypes = {
- // Identifier for a network error (loading error / timeout ...)
- NETWORK_ERROR: 'hlsNetworkError',
- // Identifier for a media Error (video/parsing/mediasource error)
- MEDIA_ERROR: 'hlsMediaError',
- // Identifier for all other errors
- OTHER_ERROR: 'hlsOtherError'
-};
-
-exports.ErrorTypes = ErrorTypes;
-var ErrorDetails = {
- // Identifier for a manifest load error - data: { url : faulty URL, response : XHR response}
- MANIFEST_LOAD_ERROR: 'manifestLoadError',
- // Identifier for a manifest load timeout - data: { url : faulty URL, response : XHR response}
- MANIFEST_LOAD_TIMEOUT: 'manifestLoadTimeOut',
- // Identifier for a manifest parsing error - data: { url : faulty URL, reason : error reason}
- MANIFEST_PARSING_ERROR: 'manifestParsingError',
- // Identifier for playlist load error - data: { url : faulty URL, response : XHR response}
- LEVEL_LOAD_ERROR: 'levelLoadError',
- // Identifier for playlist load timeout - data: { url : faulty URL, response : XHR response}
- LEVEL_LOAD_TIMEOUT: 'levelLoadTimeOut',
- // Identifier for a level switch error - data: { level : faulty level Id, event : error description}
- LEVEL_SWITCH_ERROR: 'levelSwitchError',
- // Identifier for fragment load error - data: { frag : fragment object, response : XHR response}
- FRAG_LOAD_ERROR: 'fragLoadError',
- // Identifier for fragment loop loading error - data: { frag : fragment object}
- FRAG_LOOP_LOADING_ERROR: 'fragLoopLoadingError',
- // Identifier for fragment load timeout error - data: { frag : fragment object}
- FRAG_LOAD_TIMEOUT: 'fragLoadTimeOut',
- // Identifier for a fragment decryption error event - data: parsing error description
- FRAG_DECRYPT_ERROR: 'fragDecryptError',
- // Identifier for a fragment parsing error event - data: parsing error description
- FRAG_PARSING_ERROR: 'fragParsingError',
- // Identifier for decrypt key load error - data: { frag : fragment object, response : XHR response}
- KEY_LOAD_ERROR: 'keyLoadError',
- // Identifier for decrypt key load timeout error - data: { frag : fragment object}
- KEY_LOAD_TIMEOUT: 'keyLoadTimeOut',
- // Identifier for a buffer append error - data: append error description
- BUFFER_APPEND_ERROR: 'bufferAppendError',
- // Identifier for a buffer appending error event - data: appending error description
- BUFFER_APPENDING_ERROR: 'bufferAppendingError'
-};
-exports.ErrorDetails = ErrorDetails;
-
-},{}],12:[function(require,module,exports){
-'use strict';
-
-Object.defineProperty(exports, '__esModule', {
- value: true
-});
-exports['default'] = {
- // fired before MediaSource is attaching to media element - data: { media }
- MEDIA_ATTACHING: 'hlsMediaAttaching',
- // fired when MediaSource has been succesfully attached to media element - data: { }
- MEDIA_ATTACHED: 'hlsMediaAttached',
- // fired before detaching MediaSource from media element - data: { }
- MEDIA_DETACHING: 'hlsMediaDetaching',
- // fired when MediaSource has been detached from media element - data: { }
- MEDIA_DETACHED: 'hlsMediaDetached',
- // fired to signal that a manifest loading starts - data: { url : manifestURL}
- MANIFEST_LOADING: 'hlsManifestLoading',
- // fired after manifest has been loaded - data: { levels : [available quality levels] , url : manifestURL, stats : { trequest, tfirst, tload, mtime}}
- MANIFEST_LOADED: 'hlsManifestLoaded',
- // fired after manifest has been parsed - data: { levels : [available quality levels] , firstLevel : index of first quality level appearing in Manifest}
- MANIFEST_PARSED: 'hlsManifestParsed',
- // fired when a level playlist loading starts - data: { url : level URL level : id of level being loaded}
- LEVEL_LOADING: 'hlsLevelLoading',
- // fired when a level playlist loading finishes - data: { details : levelDetails object, level : id of loaded level, stats : { trequest, tfirst, tload, mtime} }
- LEVEL_LOADED: 'hlsLevelLoaded',
- // fired when a level's details have been updated based on previous details, after it has been loaded. - data: { details : levelDetails object, level : id of updated level }
- LEVEL_UPDATED: 'hlsLevelUpdated',
- // fired when a level's PTS information has been updated after parsing a fragment - data: { details : levelDetails object, level : id of updated level, drift: PTS drift observed when parsing last fragment }
- LEVEL_PTS_UPDATED: 'hlsPTSUpdated',
- // fired when a level switch is requested - data: { level : id of new level }
- LEVEL_SWITCH: 'hlsLevelSwitch',
- // fired when a fragment loading starts - data: { frag : fragment object}
- FRAG_LOADING: 'hlsFragLoading',
- // fired when a fragment loading is progressing - data: { frag : fragment object, { trequest, tfirst, loaded}}
- FRAG_LOAD_PROGRESS: 'hlsFragLoadProgress',
- // Identifier for fragment load aborting for emergency switch down - data: {frag : fragment object}
- FRAG_LOAD_EMERGENCY_ABORTED: 'hlsFragLoadEmergencyAborted',
- // fired when a fragment loading is completed - data: { frag : fragment object, payload : fragment payload, stats : { trequest, tfirst, tload, length}}
- FRAG_LOADED: 'hlsFragLoaded',
- // fired when Init Segment has been extracted from fragment - data: { moov : moov MP4 box, codecs : codecs found while parsing fragment}
- FRAG_PARSING_INIT_SEGMENT: 'hlsFragParsingInitSegment',
- // fired when parsing id3 is completed - data: { samples : [ id3 samples pes ] }
- FRAG_PARSING_METADATA: 'hlsFraParsingMetadata',
- // fired when moof/mdat have been extracted from fragment - data: { moof : moof MP4 box, mdat : mdat MP4 box}
- FRAG_PARSING_DATA: 'hlsFragParsingData',
- // fired when fragment parsing is completed - data: undefined
- FRAG_PARSED: 'hlsFragParsed',
- // fired when fragment remuxed MP4 boxes have all been appended into SourceBuffer - data: { frag : fragment object, stats : { trequest, tfirst, tload, tparsed, tbuffered, length} }
- FRAG_BUFFERED: 'hlsFragBuffered',
- // fired when fragment matching with current media position is changing - data : { frag : fragment object }
- FRAG_CHANGED: 'hlsFragChanged',
- // Identifier for a FPS drop event - data: {curentDropped, currentDecoded, totalDroppedFrames}
- FPS_DROP: 'hlsFPSDrop',
- // Identifier for an error event - data: { type : error type, details : error details, fatal : if true, hls.js cannot/will not try to recover, if false, hls.js will try to recover,other error specific data}
- ERROR: 'hlsError',
- // fired when hls.js instance starts destroying. Different from MSE_DETACHED as one could want to detach and reattach a media to the instance of hls.js to handle mid-rolls for example
- DESTROYING: 'hlsDestroying',
- // fired when a decrypt key loading starts - data: { frag : fragment object}
- KEY_LOADING: 'hlsKeyLoading',
- // fired when a decrypt key loading is completed - data: { frag : fragment object, payload : key payload, stats : { trequest, tfirst, tload, length}}
- KEY_LOADED: 'hlsKeyLoaded'
-};
-module.exports = exports['default'];
-
-},{}],13:[function(require,module,exports){
-/**
- * Level Helper class, providing methods dealing with playlist sliding and drift
-*/
-
-'use strict';
-
-Object.defineProperty(exports, '__esModule', {
- value: true
-});
-
-var _createClass = (function () { function defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ('value' in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor; }; })();
-
-function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError('Cannot call a class as a function'); } }
-
-var _utilsLogger = require('../utils/logger');
-
-var LevelHelper = (function () {
- function LevelHelper() {
- _classCallCheck(this, LevelHelper);
- }
-
- _createClass(LevelHelper, null, [{
- key: 'mergeDetails',
- value: function mergeDetails(oldDetails, newDetails) {
- var start = Math.max(oldDetails.startSN, newDetails.startSN) - newDetails.startSN,
- end = Math.min(oldDetails.endSN, newDetails.endSN) - newDetails.startSN,
- delta = newDetails.startSN - oldDetails.startSN,
- oldfragments = oldDetails.fragments,
- newfragments = newDetails.fragments,
- ccOffset = 0,
- PTSFrag;
-
- // check if old/new playlists have fragments in common
- if (end < start) {
- newDetails.PTSKnown = false;
- return;
- }
- // loop through overlapping SN and update startPTS , cc, and duration if any found
- for (var i = start; i <= end; i++) {
- var oldFrag = oldfragments[delta + i],
- newFrag = newfragments[i];
- ccOffset = oldFrag.cc - newFrag.cc;
- if (!isNaN(oldFrag.startPTS)) {
- newFrag.start = newFrag.startPTS = oldFrag.startPTS;
- newFrag.endPTS = oldFrag.endPTS;
- newFrag.duration = oldFrag.duration;
- PTSFrag = newFrag;
- }
- }
-
- if (ccOffset) {
- _utilsLogger.logger.log('discontinuity sliding from playlist, take drift into account');
- for (i = 0; i < newfragments.length; i++) {
- newfragments[i].cc += ccOffset;
- }
- }
-
- // if at least one fragment contains PTS info, recompute PTS information for all fragments
- if (PTSFrag) {
- LevelHelper.updateFragPTS(newDetails, PTSFrag.sn, PTSFrag.startPTS, PTSFrag.endPTS);
- } else {
- // adjust start by sliding offset
- var sliding = oldfragments[delta].start;
- for (i = 0; i < newfragments.length; i++) {
- newfragments[i].start += sliding;
- }
- }
- // if we are here, it means we have fragments overlapping between
- // old and new level. reliable PTS info is thus relying on old level
- newDetails.PTSKnown = oldDetails.PTSKnown;
- return;
- }
- }, {
- key: 'updateFragPTS',
- value: function updateFragPTS(details, sn, startPTS, endPTS) {
- var fragIdx, fragments, frag, i;
- // exit if sn out of range
- if (sn < details.startSN || sn > details.endSN) {
- return 0;
- }
- fragIdx = sn - details.startSN;
- fragments = details.fragments;
- frag = fragments[fragIdx];
- if (!isNaN(frag.startPTS)) {
- startPTS = Math.max(startPTS, frag.startPTS);
- endPTS = Math.min(endPTS, frag.endPTS);
- }
-
- var drift = startPTS - frag.start;
-
- frag.start = frag.startPTS = startPTS;
- frag.endPTS = endPTS;
- frag.duration = endPTS - startPTS;
- // adjust fragment PTS/duration from seqnum-1 to frag 0
- for (i = fragIdx; i > 0; i--) {
- LevelHelper.updatePTS(fragments, i, i - 1);
- }
-
- // adjust fragment PTS/duration from seqnum to last frag
- for (i = fragIdx; i < fragments.length - 1; i++) {
- LevelHelper.updatePTS(fragments, i, i + 1);
- }
- details.PTSKnown = true;
- //logger.log(` frag start/end:${startPTS.toFixed(3)}/${endPTS.toFixed(3)}`);
-
- return drift;
- }
- }, {
- key: 'updatePTS',
- value: function updatePTS(fragments, fromIdx, toIdx) {
- var fragFrom = fragments[fromIdx],
- fragTo = fragments[toIdx],
- fragToPTS = fragTo.startPTS;
- // if we know startPTS[toIdx]
- if (!isNaN(fragToPTS)) {
- // update fragment duration.
- // it helps to fix drifts between playlist reported duration and fragment real duration
- if (toIdx > fromIdx) {
- fragFrom.duration = fragToPTS - fragFrom.start;
- if (fragFrom.duration < 0) {
- _utilsLogger.logger.error('negative duration computed for ' + fragFrom + ', there should be some duration drift between playlist and fragment!');
- }
- } else {
- fragTo.duration = fragFrom.start - fragToPTS;
- if (fragTo.duration < 0) {
- _utilsLogger.logger.error('negative duration computed for ' + fragTo + ', there should be some duration drift between playlist and fragment!');
- }
- }
- } else {
- // we dont know startPTS[toIdx]
- if (toIdx > fromIdx) {
- fragTo.start = fragFrom.start + fragFrom.duration;
- } else {
- fragTo.start = fragFrom.start - fragTo.duration;
- }
- }
- }
- }]);
-
- return LevelHelper;
-})();
-
-exports['default'] = LevelHelper;
-module.exports = exports['default'];
-
-},{"../utils/logger":21}],14:[function(require,module,exports){
-/**
- * HLS interface
- */
-'use strict';
-
-Object.defineProperty(exports, '__esModule', {
- value: true
-});
-
-var _createClass = (function () { function defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ('value' in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor; }; })();
-
-function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { 'default': obj }; }
-
-function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError('Cannot call a class as a function'); } }
-
-var _events = require('./events');
-
-var _events2 = _interopRequireDefault(_events);
-
-var _errors = require('./errors');
-
-var _loaderPlaylistLoader = require('./loader/playlist-loader');
-
-var _loaderPlaylistLoader2 = _interopRequireDefault(_loaderPlaylistLoader);
-
-var _loaderFragmentLoader = require('./loader/fragment-loader');
-
-var _loaderFragmentLoader2 = _interopRequireDefault(_loaderFragmentLoader);
-
-var _controllerAbrController = require('./controller/abr-controller');
-
-var _controllerAbrController2 = _interopRequireDefault(_controllerAbrController);
-
-var _controllerMseMediaController = require('./controller/mse-media-controller');
-
-var _controllerMseMediaController2 = _interopRequireDefault(_controllerMseMediaController);
-
-var _controllerLevelController = require('./controller/level-controller');
-
-var _controllerLevelController2 = _interopRequireDefault(_controllerLevelController);
-
-//import FPSController from './controller/fps-controller';
-
-var _utilsLogger = require('./utils/logger');
-
-var _utilsXhrLoader = require('./utils/xhr-loader');
-
-var _utilsXhrLoader2 = _interopRequireDefault(_utilsXhrLoader);
-
-var _events3 = require('events');
-
-var _events4 = _interopRequireDefault(_events3);
-
-var _loaderKeyLoader = require('./loader/key-loader');
-
-var _loaderKeyLoader2 = _interopRequireDefault(_loaderKeyLoader);
-
-var Hls = (function () {
- _createClass(Hls, null, [{
- key: 'isSupported',
- value: function isSupported() {
- return window.MediaSource && window.MediaSource.isTypeSupported('video/mp4; codecs="avc1.42E01E,mp4a.40.2"');
- }
- }, {
- key: 'Events',
- get: function get() {
- return _events2['default'];
- }
- }, {
- key: 'ErrorTypes',
- get: function get() {
- return _errors.ErrorTypes;
- }
- }, {
- key: 'ErrorDetails',
- get: function get() {
- return _errors.ErrorDetails;
- }
- }]);
-
- function Hls() {
- var config = arguments.length <= 0 || arguments[0] === undefined ? {} : arguments[0];
-
- _classCallCheck(this, Hls);
-
- var configDefault = {
- autoStartLoad: true,
- debug: false,
- maxBufferLength: 30,
- maxBufferSize: 60 * 1000 * 1000,
- liveSyncDurationCount: 3,
- liveMaxLatencyDurationCount: Infinity,
- maxMaxBufferLength: 600,
- enableWorker: true,
- fragLoadingTimeOut: 20000,
- fragLoadingMaxRetry: 1,
- fragLoadingRetryDelay: 1000,
- fragLoadingLoopThreshold: 3,
- manifestLoadingTimeOut: 10000,
- manifestLoadingMaxRetry: 1,
- manifestLoadingRetryDelay: 1000,
- fpsDroppedMonitoringPeriod: 5000,
- fpsDroppedMonitoringThreshold: 0.2,
- appendErrorMaxRetry: 200,
- loader: _utilsXhrLoader2['default'],
- fLoader: undefined,
- pLoader: undefined,
- abrController: _controllerAbrController2['default'],
- mediaController: _controllerMseMediaController2['default']
- };
- for (var prop in configDefault) {
- if (prop in config) {
- continue;
- }
- config[prop] = configDefault[prop];
- }
-
- if (config.liveMaxLatencyDurationCount !== undefined && config.liveMaxLatencyDurationCount <= config.liveSyncDurationCount) {
- throw new Error('Illegal hls.js configuration: "liveMaxLatencyDurationCount" must be strictly superior to "liveSyncDurationCount" in player configuration');
- }
-
- (0, _utilsLogger.enableLogs)(config.debug);
- this.config = config;
- // observer setup
- var observer = this.observer = new _events4['default']();
- observer.trigger = function trigger(event) {
- for (var _len = arguments.length, data = Array(_len > 1 ? _len - 1 : 0), _key = 1; _key < _len; _key++) {
- data[_key - 1] = arguments[_key];
- }
-
- observer.emit.apply(observer, [event, event].concat(data));
- };
-
- observer.off = function off(event) {
- for (var _len2 = arguments.length, data = Array(_len2 > 1 ? _len2 - 1 : 0), _key2 = 1; _key2 < _len2; _key2++) {
- data[_key2 - 1] = arguments[_key2];
- }
-
- observer.removeListener.apply(observer, [event].concat(data));
- };
- this.on = observer.on.bind(observer);
- this.off = observer.off.bind(observer);
- this.trigger = observer.trigger.bind(observer);
- this.playlistLoader = new _loaderPlaylistLoader2['default'](this);
- this.fragmentLoader = new _loaderFragmentLoader2['default'](this);
- this.levelController = new _controllerLevelController2['default'](this);
- this.abrController = new config.abrController(this);
- this.mediaController = new config.mediaController(this);
- this.keyLoader = new _loaderKeyLoader2['default'](this);
- //this.fpsController = new FPSController(this);
- }
-
- _createClass(Hls, [{
- key: 'destroy',
- value: function destroy() {
- _utilsLogger.logger.log('destroy');
- this.detachMedia();
- this.trigger(_events2['default'].DESTROYING);
- this.playlistLoader.destroy();
- this.fragmentLoader.destroy();
- this.levelController.destroy();
- this.mediaController.destroy();
- this.keyLoader.destroy();
- //this.fpsController.destroy();
- this.url = null;
- this.observer.removeAllListeners();
- }
- }, {
- key: 'attachMedia',
- value: function attachMedia(media) {
- _utilsLogger.logger.log('attachMedia');
- this.media = media;
- this.trigger(_events2['default'].MEDIA_ATTACHING, { media: media });
- }
- }, {
- key: 'detachMedia',
- value: function detachMedia() {
- _utilsLogger.logger.log('detachMedia');
- this.trigger(_events2['default'].MEDIA_DETACHING);
- this.media = null;
- }
- }, {
- key: 'loadSource',
- value: function loadSource(url) {
- _utilsLogger.logger.log('loadSource:' + url);
- this.url = url;
- // when attaching to a source URL, trigger a playlist load
- this.trigger(_events2['default'].MANIFEST_LOADING, { url: url });
- }
- }, {
- key: 'startLoad',
- value: function startLoad() {
- _utilsLogger.logger.log('startLoad');
- this.mediaController.startLoad();
- }
- }, {
- key: 'recoverMediaError',
- value: function recoverMediaError() {
- _utilsLogger.logger.log('recoverMediaError');
- var media = this.media;
- this.detachMedia();
- this.attachMedia(media);
- }
-
- /** Return all quality levels **/
- }, {
- key: 'levels',
- get: function get() {
- return this.levelController.levels;
- }
-
- /** Return current playback quality level **/
- }, {
- key: 'currentLevel',
- get: function get() {
- return this.mediaController.currentLevel;
- },
-
- /* set quality level immediately (-1 for automatic level selection) */
- set: function set(newLevel) {
- _utilsLogger.logger.log('set currentLevel:' + newLevel);
- this.loadLevel = newLevel;
- this.mediaController.immediateLevelSwitch();
- }
-
- /** Return next playback quality level (quality level of next fragment) **/
- }, {
- key: 'nextLevel',
- get: function get() {
- return this.mediaController.nextLevel;
- },
-
- /* set quality level for next fragment (-1 for automatic level selection) */
- set: function set(newLevel) {
- _utilsLogger.logger.log('set nextLevel:' + newLevel);
- this.levelController.manualLevel = newLevel;
- this.mediaController.nextLevelSwitch();
- }
-
- /** Return the quality level of current/last loaded fragment **/
- }, {
- key: 'loadLevel',
- get: function get() {
- return this.levelController.level;
- },
-
- /* set quality level for current/next loaded fragment (-1 for automatic level selection) */
- set: function set(newLevel) {
- _utilsLogger.logger.log('set loadLevel:' + newLevel);
- this.levelController.manualLevel = newLevel;
- }
-
- /** Return the quality level of next loaded fragment **/
- }, {
- key: 'nextLoadLevel',
- get: function get() {
- return this.levelController.nextLoadLevel();
- },
-
- /** set quality level of next loaded fragment **/
- set: function set(level) {
- this.levelController.level = level;
- }
-
- /** Return first level (index of first level referenced in manifest)
- **/
- }, {
- key: 'firstLevel',
- get: function get() {
- return this.levelController.firstLevel;
- },
-
- /** set first level (index of first level referenced in manifest)
- **/
- set: function set(newLevel) {
- _utilsLogger.logger.log('set firstLevel:' + newLevel);
- this.levelController.firstLevel = newLevel;
- }
-
- /** Return start level (level of first fragment that will be played back)
- if not overrided by user, first level appearing in manifest will be used as start level
- if -1 : automatic start level selection, playback will start from level matching download bandwidth (determined from download of first segment)
- **/
- }, {
- key: 'startLevel',
- get: function get() {
- return this.levelController.startLevel;
- },
-
- /** set start level (level of first fragment that will be played back)
- if not overrided by user, first level appearing in manifest will be used as start level
- if -1 : automatic start level selection, playback will start from level matching download bandwidth (determined from download of first segment)
- **/
- set: function set(newLevel) {
- _utilsLogger.logger.log('set startLevel:' + newLevel);
- this.levelController.startLevel = newLevel;
- }
-
- /** Return the capping/max level value that could be used by automatic level selection algorithm **/
- }, {
- key: 'autoLevelCapping',
- get: function get() {
- return this.abrController.autoLevelCapping;
- },
-
- /** set the capping/max level value that could be used by automatic level selection algorithm **/
- set: function set(newLevel) {
- _utilsLogger.logger.log('set autoLevelCapping:' + newLevel);
- this.abrController.autoLevelCapping = newLevel;
- }
-
- /* check if we are in automatic level selection mode */
- }, {
- key: 'autoLevelEnabled',
- get: function get() {
- return this.levelController.manualLevel === -1;
- }
-
- /* return manual level */
- }, {
- key: 'manualLevel',
- get: function get() {
- return this.levelController.manualLevel;
- }
- }]);
-
- return Hls;
-})();
-
-exports['default'] = Hls;
-module.exports = exports['default'];
-
-},{"./controller/abr-controller":3,"./controller/level-controller":4,"./controller/mse-media-controller":5,"./errors":11,"./events":12,"./loader/fragment-loader":15,"./loader/key-loader":16,"./loader/playlist-loader":17,"./utils/logger":21,"./utils/xhr-loader":23,"events":1}],15:[function(require,module,exports){
-/*
- * Fragment Loader
-*/
-
-'use strict';
-
-Object.defineProperty(exports, '__esModule', {
- value: true
-});
-
-var _createClass = (function () { function defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ('value' in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor; }; })();
-
-function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { 'default': obj }; }
-
-function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError('Cannot call a class as a function'); } }
-
-var _events = require('../events');
-
-var _events2 = _interopRequireDefault(_events);
-
-var _errors = require('../errors');
-
-var FragmentLoader = (function () {
- function FragmentLoader(hls) {
- _classCallCheck(this, FragmentLoader);
-
- this.hls = hls;
- this.onfl = this.onFragLoading.bind(this);
- hls.on(_events2['default'].FRAG_LOADING, this.onfl);
- }
-
- _createClass(FragmentLoader, [{
- key: 'destroy',
- value: function destroy() {
- if (this.loader) {
- this.loader.destroy();
- this.loader = null;
- }
- this.hls.off(_events2['default'].FRAG_LOADING, this.onfl);
- }
- }, {
- key: 'onFragLoading',
- value: function onFragLoading(event, data) {
- var frag = data.frag;
- this.frag = frag;
- this.frag.loaded = 0;
- var config = this.hls.config;
- frag.loader = this.loader = typeof config.fLoader !== 'undefined' ? new config.fLoader(config) : new config.loader(config);
- this.loader.load(frag.url, 'arraybuffer', this.loadsuccess.bind(this), this.loaderror.bind(this), this.loadtimeout.bind(this), config.fragLoadingTimeOut, config.fragLoadingMaxRetry, config.fragLoadingRetryDelay, this.loadprogress.bind(this), frag);
- }
- }, {
- key: 'loadsuccess',
- value: function loadsuccess(event, stats) {
- var payload = event.currentTarget.response;
- stats.length = payload.byteLength;
- // detach fragment loader on load success
- this.frag.loader = undefined;
- this.hls.trigger(_events2['default'].FRAG_LOADED, { payload: payload, frag: this.frag, stats: stats });
- }
- }, {
- key: 'loaderror',
- value: function loaderror(event) {
- this.loader.abort();
- this.hls.trigger(_events2['default'].ERROR, { type: _errors.ErrorTypes.NETWORK_ERROR, details: _errors.ErrorDetails.FRAG_LOAD_ERROR, fatal: false, frag: this.frag, response: event });
- }
- }, {
- key: 'loadtimeout',
- value: function loadtimeout() {
- this.loader.abort();
- this.hls.trigger(_events2['default'].ERROR, { type: _errors.ErrorTypes.NETWORK_ERROR, details: _errors.ErrorDetails.FRAG_LOAD_TIMEOUT, fatal: false, frag: this.frag });
- }
- }, {
- key: 'loadprogress',
- value: function loadprogress(event, stats) {
- this.frag.loaded = stats.loaded;
- this.hls.trigger(_events2['default'].FRAG_LOAD_PROGRESS, { frag: this.frag, stats: stats });
- }
- }]);
-
- return FragmentLoader;
-})();
-
-exports['default'] = FragmentLoader;
-module.exports = exports['default'];
-
-},{"../errors":11,"../events":12}],16:[function(require,module,exports){
-/*
- * Decrypt key Loader
-*/
-
-'use strict';
-
-Object.defineProperty(exports, '__esModule', {
- value: true
-});
-
-var _createClass = (function () { function defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ('value' in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor; }; })();
-
-function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { 'default': obj }; }
-
-function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError('Cannot call a class as a function'); } }
-
-var _events = require('../events');
-
-var _events2 = _interopRequireDefault(_events);
-
-var _errors = require('../errors');
-
-var KeyLoader = (function () {
- function KeyLoader(hls) {
- _classCallCheck(this, KeyLoader);
-
- this.hls = hls;
- this.decryptkey = null;
- this.decrypturl = null;
- this.ondkl = this.onDecryptKeyLoading.bind(this);
- hls.on(_events2['default'].KEY_LOADING, this.ondkl);
- }
-
- _createClass(KeyLoader, [{
- key: 'destroy',
- value: function destroy() {
- if (this.loader) {
- this.loader.destroy();
- this.loader = null;
- }
- this.hls.off(_events2['default'].KEY_LOADING, this.ondkl);
- }
- }, {
- key: 'onDecryptKeyLoading',
- value: function onDecryptKeyLoading(event, data) {
- var frag = this.frag = data.frag,
- decryptdata = frag.decryptdata,
- uri = decryptdata.uri;
- // if uri is different from previous one or if decrypt key not retrieved yet
- if (uri !== this.decrypturl || this.decryptkey === null) {
- var config = this.hls.config;
- frag.loader = this.loader = new config.loader(config);
- this.decrypturl = uri;
- this.decryptkey = null;
- frag.loader.load(uri, 'arraybuffer', this.loadsuccess.bind(this), this.loaderror.bind(this), this.loadtimeout.bind(this), config.fragLoadingTimeOut, config.fragLoadingMaxRetry, config.fragLoadingRetryDelay, this.loadprogress.bind(this), frag);
- } else if (this.decryptkey) {
- // we already loaded this key, return it
- decryptdata.key = this.decryptkey;
- this.hls.trigger(_events2['default'].KEY_LOADED, { frag: frag });
- }
- }
- }, {
- key: 'loadsuccess',
- value: function loadsuccess(event) {
- var frag = this.frag;
- this.decryptkey = frag.decryptdata.key = new Uint8Array(event.currentTarget.response);
- // detach fragment loader on load success
- frag.loader = undefined;
- this.hls.trigger(_events2['default'].KEY_LOADED, { frag: frag });
- }
- }, {
- key: 'loaderror',
- value: function loaderror(event) {
- this.loader.abort();
- this.hls.trigger(_events2['default'].ERROR, { type: _errors.ErrorTypes.NETWORK_ERROR, details: _errors.ErrorDetails.KEY_LOAD_ERROR, fatal: false, frag: this.frag, response: event });
- }
- }, {
- key: 'loadtimeout',
- value: function loadtimeout() {
- this.loader.abort();
- this.hls.trigger(_events2['default'].ERROR, { type: _errors.ErrorTypes.NETWORK_ERROR, details: _errors.ErrorDetails.KEY_LOAD_TIMEOUT, fatal: false, frag: this.frag });
- }
- }, {
- key: 'loadprogress',
- value: function loadprogress() {}
- }]);
-
- return KeyLoader;
-})();
-
-exports['default'] = KeyLoader;
-module.exports = exports['default'];
-
-},{"../errors":11,"../events":12}],17:[function(require,module,exports){
-/**
- * Playlist Loader
-*/
-
-'use strict';
-
-Object.defineProperty(exports, '__esModule', {
- value: true
-});
-
-var _createClass = (function () { function defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ('value' in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor; }; })();
-
-function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { 'default': obj }; }
-
-function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError('Cannot call a class as a function'); } }
-
-var _events = require('../events');
-
-var _events2 = _interopRequireDefault(_events);
-
-var _errors = require('../errors');
-
-var _utilsUrl = require('../utils/url');
-
-var _utilsUrl2 = _interopRequireDefault(_utilsUrl);
-
-//import {logger} from '../utils/logger';
-
-var PlaylistLoader = (function () {
- function PlaylistLoader(hls) {
- _classCallCheck(this, PlaylistLoader);
-
- this.hls = hls;
- this.onml = this.onManifestLoading.bind(this);
- this.onll = this.onLevelLoading.bind(this);
- hls.on(_events2['default'].MANIFEST_LOADING, this.onml);
- hls.on(_events2['default'].LEVEL_LOADING, this.onll);
- }
-
- _createClass(PlaylistLoader, [{
- key: 'destroy',
- value: function destroy() {
- if (this.loader) {
- this.loader.destroy();
- this.loader = null;
- }
- this.url = this.id = null;
- this.hls.off(_events2['default'].MANIFEST_LOADING, this.onml);
- this.hls.off(_events2['default'].LEVEL_LOADING, this.onll);
- }
- }, {
- key: 'onManifestLoading',
- value: function onManifestLoading(event, data) {
- this.load(data.url, null);
- }
- }, {
- key: 'onLevelLoading',
- value: function onLevelLoading(event, data) {
- this.load(data.url, data.level, data.id);
- }
- }, {
- key: 'load',
- value: function load(url, id1, id2) {
- var config = this.hls.config;
- this.url = url;
- this.id = id1;
- this.id2 = id2;
- this.loader = typeof config.pLoader !== 'undefined' ? new config.pLoader(config) : new config.loader(config);
- this.loader.load(url, '', this.loadsuccess.bind(this), this.loaderror.bind(this), this.loadtimeout.bind(this), config.manifestLoadingTimeOut, config.manifestLoadingMaxRetry, config.manifestLoadingRetryDelay);
- }
- }, {
- key: 'resolve',
- value: function resolve(url, baseUrl) {
- return _utilsUrl2['default'].buildAbsoluteURL(baseUrl, url);
- }
- }, {
- key: 'parseMasterPlaylist',
- value: function parseMasterPlaylist(string, baseurl) {
- var levels = [],
- level = {},
- result,
- codecs,
- codec;
- // https://regex101.com is your friend
- var re = /#EXT-X-STREAM-INF:([^\n\r]*(BAND)WIDTH=(\d+))?([^\n\r]*(CODECS)=\"([^\"\n\r]*)\",?)?([^\n\r]*(RES)OLUTION=(\d+)x(\d+))?([^\n\r]*(NAME)=\"(.*)\")?[^\n\r]*[\r\n]+([^\r\n]+)/g;
- while ((result = re.exec(string)) != null) {
- result.shift();
- result = result.filter(function (n) {
- return n !== undefined;
- });
- level.url = this.resolve(result.pop(), baseurl);
- while (result.length > 0) {
- switch (result.shift()) {
- case 'RES':
- level.width = parseInt(result.shift());
- level.height = parseInt(result.shift());
- break;
- case 'BAND':
- level.bitrate = parseInt(result.shift());
- break;
- case 'NAME':
- level.name = result.shift();
- break;
- case 'CODECS':
- codecs = result.shift().split(',');
- while (codecs.length > 0) {
- codec = codecs.shift();
- if (codec.indexOf('avc1') !== -1) {
- level.videoCodec = this.avc1toavcoti(codec);
- } else {
- level.audioCodec = codec;
- }
- }
- break;
- default:
- break;
- }
- }
- levels.push(level);
- level = {};
- }
- return levels;
- }
- }, {
- key: 'avc1toavcoti',
- value: function avc1toavcoti(codec) {
- var result,
- avcdata = codec.split('.');
- if (avcdata.length > 2) {
- result = avcdata.shift() + '.';
- result += parseInt(avcdata.shift()).toString(16);
- result += ('00' + parseInt(avcdata.shift()).toString(16)).substr(-4);
- } else {
- result = codec;
- }
- return result;
- }
- }, {
- key: 'parseKeyParamsByRegex',
- value: function parseKeyParamsByRegex(string, regexp) {
- var result = regexp.exec(string);
- if (result) {
- result.shift();
- result = result.filter(function (n) {
- return n !== undefined;
- });
- if (result.length === 2) {
- return result[1];
- }
- }
- return null;
- }
- }, {
- key: 'cloneObj',
- value: function cloneObj(obj) {
- return JSON.parse(JSON.stringify(obj));
- }
- }, {
- key: 'parseLevelPlaylist',
- value: function parseLevelPlaylist(string, baseurl, id) {
- var currentSN = 0,
- totalduration = 0,
- level = { url: baseurl, fragments: [], live: true, startSN: 0 },
- result,
- regexp,
- cc = 0,
- frag,
- byteRangeEndOffset,
- byteRangeStartOffset;
- var levelkey = { method: null, key: null, iv: null, uri: null };
- regexp = /(?:#EXT-X-(MEDIA-SEQUENCE):(\d+))|(?:#EXT-X-(TARGETDURATION):(\d+))|(?:#EXT-X-(KEY):(.*))|(?:#EXT(INF):([\d\.]+)[^\r\n]*([\r\n]+[^#|\r\n]+)?)|(?:#EXT-X-(BYTERANGE):([\d]+[@[\d]*)]*[\r\n]+([^#|\r\n]+)?|(?:#EXT-X-(ENDLIST))|(?:#EXT-X-(DIS)CONTINUITY))/g;
- while ((result = regexp.exec(string)) !== null) {
- result.shift();
- result = result.filter(function (n) {
- return n !== undefined;
- });
- switch (result[0]) {
- case 'MEDIA-SEQUENCE':
- currentSN = level.startSN = parseInt(result[1]);
- break;
- case 'TARGETDURATION':
- level.targetduration = parseFloat(result[1]);
- break;
- case 'ENDLIST':
- level.live = false;
- break;
- case 'DIS':
- cc++;
- break;
- case 'BYTERANGE':
- var params = result[1].split('@');
- if (params.length === 1) {
- byteRangeStartOffset = byteRangeEndOffset;
- } else {
- byteRangeStartOffset = parseInt(params[1]);
- }
- byteRangeEndOffset = parseInt(params[0]) + byteRangeStartOffset;
- frag = level.fragments.length ? level.fragments[level.fragments.length - 1] : null;
- if (frag && !frag.url) {
- frag.byteRangeStartOffset = byteRangeStartOffset;
- frag.byteRangeEndOffset = byteRangeEndOffset;
- frag.url = this.resolve(result[2], baseurl);
- }
- break;
- case 'INF':
- var duration = parseFloat(result[1]);
- if (!isNaN(duration)) {
- var fragdecryptdata,
- sn = currentSN++;
- if (levelkey.method && levelkey.uri && !levelkey.iv) {
- fragdecryptdata = this.cloneObj(levelkey);
- var uint8View = new Uint8Array(16);
- for (var i = 12; i < 16; i++) {
- uint8View[i] = sn >> 8 * (15 - i) & 0xff;
- }
- fragdecryptdata.iv = uint8View;
- } else {
- fragdecryptdata = levelkey;
- }
- level.fragments.push({ url: result[2] ? this.resolve(result[2], baseurl) : null, duration: duration, start: totalduration, sn: sn, level: id, cc: cc, byteRangeStartOffset: byteRangeStartOffset, byteRangeEndOffset: byteRangeEndOffset, decryptdata: fragdecryptdata });
- totalduration += duration;
- byteRangeStartOffset = null;
- }
- break;
- case 'KEY':
- // https://tools.ietf.org/html/draft-pantos-http-live-streaming-08#section-3.4.4
- var decryptparams = result[1];
- var decryptmethod = this.parseKeyParamsByRegex(decryptparams, /(METHOD)=([^,]*)/),
- decrypturi = this.parseKeyParamsByRegex(decryptparams, /(URI)=["]([^,]*)["]/),
- decryptiv = this.parseKeyParamsByRegex(decryptparams, /(IV)=([^,]*)/);
- if (decryptmethod) {
- levelkey = { method: null, key: null, iv: null, uri: null };
- if (decrypturi && decryptmethod === 'AES-128') {
- levelkey.method = decryptmethod;
- // URI to get the key
- levelkey.uri = this.resolve(decrypturi, baseurl);
- levelkey.key = null;
- // Initialization Vector (IV)
- if (decryptiv) {
- levelkey.iv = decryptiv;
- if (levelkey.iv.substring(0, 2) === '0x') {
- levelkey.iv = levelkey.iv.substring(2);
- }
- levelkey.iv = levelkey.iv.match(/.{8}/g);
- levelkey.iv[0] = parseInt(levelkey.iv[0], 16);
- levelkey.iv[1] = parseInt(levelkey.iv[1], 16);
- levelkey.iv[2] = parseInt(levelkey.iv[2], 16);
- levelkey.iv[3] = parseInt(levelkey.iv[3], 16);
- levelkey.iv = new Uint32Array(levelkey.iv);
- }
- }
- }
- break;
- default:
- break;
- }
- }
- //logger.log('found ' + level.fragments.length + ' fragments');
- level.totalduration = totalduration;
- level.endSN = currentSN - 1;
- return level;
- }
- }, {
- key: 'loadsuccess',
- value: function loadsuccess(event, stats) {
- var string = event.currentTarget.responseText,
- url = event.currentTarget.responseURL,
- id = this.id,
- id2 = this.id2,
- hls = this.hls,
- levels;
- // responseURL not supported on some browsers (it is used to detect URL redirection)
- if (url === undefined) {
- // fallback to initial URL
- url = this.url;
- }
- stats.tload = performance.now();
- stats.mtime = new Date(event.currentTarget.getResponseHeader('Last-Modified'));
- if (string.indexOf('#EXTM3U') === 0) {
- if (string.indexOf('#EXTINF:') > 0) {
- // 1 level playlist
- // if first request, fire manifest loaded event, level will be reloaded afterwards
- // (this is to have a uniform logic for 1 level/multilevel playlists)
- if (this.id === null) {
- hls.trigger(_events2['default'].MANIFEST_LOADED, { levels: [{ url: url }], url: url, stats: stats });
- } else {
- var levelDetails = this.parseLevelPlaylist(string, url, id);
- stats.tparsed = performance.now();
- hls.trigger(_events2['default'].LEVEL_LOADED, { details: levelDetails, level: id, id: id2, stats: stats });
- }
- } else {
- levels = this.parseMasterPlaylist(string, url);
- // multi level playlist, parse level info
- if (levels.length) {
- hls.trigger(_events2['default'].MANIFEST_LOADED, { levels: levels, url: url, stats: stats });
- } else {
- hls.trigger(_events2['default'].ERROR, { type: _errors.ErrorTypes.NETWORK_ERROR, details: _errors.ErrorDetails.MANIFEST_PARSING_ERROR, fatal: true, url: url, reason: 'no level found in manifest' });
- }
- }
- } else {
- hls.trigger(_events2['default'].ERROR, { type: _errors.ErrorTypes.NETWORK_ERROR, details: _errors.ErrorDetails.MANIFEST_PARSING_ERROR, fatal: true, url: url, reason: 'no EXTM3U delimiter' });
- }
- }
- }, {
- key: 'loaderror',
- value: function loaderror(event) {
- var details, fatal;
- if (this.id === null) {
- details = _errors.ErrorDetails.MANIFEST_LOAD_ERROR;
- fatal = true;
- } else {
- details = _errors.ErrorDetails.LEVEL_LOAD_ERROR;
- fatal = false;
- }
- this.loader.abort();
- this.hls.trigger(_events2['default'].ERROR, { type: _errors.ErrorTypes.NETWORK_ERROR, details: details, fatal: fatal, url: this.url, loader: this.loader, response: event.currentTarget, level: this.id, id: this.id2 });
- }
- }, {
- key: 'loadtimeout',
- value: function loadtimeout() {
- var details, fatal;
- if (this.id === null) {
- details = _errors.ErrorDetails.MANIFEST_LOAD_TIMEOUT;
- fatal = true;
- } else {
- details = _errors.ErrorDetails.LEVEL_LOAD_TIMEOUT;
- fatal = false;
- }
- this.loader.abort();
- this.hls.trigger(_events2['default'].ERROR, { type: _errors.ErrorTypes.NETWORK_ERROR, details: details, fatal: fatal, url: this.url, loader: this.loader, level: this.id, id: this.id2 });
- }
- }]);
-
- return PlaylistLoader;
-})();
-
-exports['default'] = PlaylistLoader;
-module.exports = exports['default'];
-
-},{"../errors":11,"../events":12,"../utils/url":22}],18:[function(require,module,exports){
-/**
- * Generate MP4 Box
-*/
-
-//import Hex from '../utils/hex';
-'use strict';
-
-Object.defineProperty(exports, '__esModule', {
- value: true
-});
-
-var _createClass = (function () { function defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ('value' in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor; }; })();
-
-function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError('Cannot call a class as a function'); } }
-
-var MP4 = (function () {
- function MP4() {
- _classCallCheck(this, MP4);
- }
-
- _createClass(MP4, null, [{
- key: 'init',
- value: function init() {
- MP4.types = {
- avc1: [], // codingname
- avcC: [],
- btrt: [],
- dinf: [],
- dref: [],
- esds: [],
- ftyp: [],
- hdlr: [],
- mdat: [],
- mdhd: [],
- mdia: [],
- mfhd: [],
- minf: [],
- moof: [],
- moov: [],
- mp4a: [],
- mvex: [],
- mvhd: [],
- sdtp: [],
- stbl: [],
- stco: [],
- stsc: [],
- stsd: [],
- stsz: [],
- stts: [],
- tfdt: [],
- tfhd: [],
- traf: [],
- trak: [],
- trun: [],
- trex: [],
- tkhd: [],
- vmhd: [],
- smhd: []
- };
-
- var i;
- for (i in MP4.types) {
- if (MP4.types.hasOwnProperty(i)) {
- MP4.types[i] = [i.charCodeAt(0), i.charCodeAt(1), i.charCodeAt(2), i.charCodeAt(3)];
- }
- }
-
- MP4.MAJOR_BRAND = new Uint8Array(['i'.charCodeAt(0), 's'.charCodeAt(0), 'o'.charCodeAt(0), 'm'.charCodeAt(0)]);
-
- MP4.AVC1_BRAND = new Uint8Array(['a'.charCodeAt(0), 'v'.charCodeAt(0), 'c'.charCodeAt(0), '1'.charCodeAt(0)]);
-
- MP4.MINOR_VERSION = new Uint8Array([0, 0, 0, 1]);
-
- MP4.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'
- ]);
-
- MP4.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'
- ]);
-
- MP4.HDLR_TYPES = {
- 'video': MP4.VIDEO_HDLR,
- 'audio': MP4.AUDIO_HDLR
- };
-
- MP4.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
- ]);
- MP4.STCO = new Uint8Array([0x00, // version
- 0x00, 0x00, 0x00, // flags
- 0x00, 0x00, 0x00, 0x00 // entry_count
- ]);
- MP4.STSC = MP4.STCO;
- MP4.STTS = MP4.STCO;
- MP4.STSZ = new Uint8Array([0x00, // version
- 0x00, 0x00, 0x00, // flags
- 0x00, 0x00, 0x00, 0x00, // sample_size
- 0x00, 0x00, 0x00, 0x00]);
- // sample_count
- MP4.VMHD = new Uint8Array([0x00, // version
- 0x00, 0x00, 0x01, // flags
- 0x00, 0x00, // graphicsmode
- 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 // opcolor
- ]);
- MP4.SMHD = new Uint8Array([0x00, // version
- 0x00, 0x00, 0x00, // flags
- 0x00, 0x00, // balance
- 0x00, 0x00 // reserved
- ]);
-
- MP4.STSD = new Uint8Array([0x00, // version 0
- 0x00, 0x00, 0x00, // flags
- 0x00, 0x00, 0x00, 0x01]); // entry_count
-
- MP4.FTYP = MP4.box(MP4.types.ftyp, MP4.MAJOR_BRAND, MP4.MINOR_VERSION, MP4.MAJOR_BRAND, MP4.AVC1_BRAND);
- MP4.DINF = MP4.box(MP4.types.dinf, MP4.box(MP4.types.dref, MP4.DREF));
- }
- }, {
- key: 'box',
- value: function box(type) {
- var payload = Array.prototype.slice.call(arguments, 1),
- size = 0,
- i = payload.length,
- result,
- view;
- // calculate the total size we need to allocate
- while (i--) {
- size += payload[i].byteLength;
- }
- result = new Uint8Array(size + 8);
- view = new DataView(result.buffer);
- 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;
- }
- }, {
- key: 'hdlr',
- value: function hdlr(type) {
- return MP4.box(MP4.types.hdlr, MP4.HDLR_TYPES[type]);
- }
- }, {
- key: 'mdat',
- value: function mdat(data) {
- return MP4.box(MP4.types.mdat, data);
- }
- }, {
- key: 'mdhd',
- value: function mdhd(timescale, duration) {
- return MP4.box(MP4.types.mdhd, new Uint8Array([0x00, // version 0
- 0x00, 0x00, 0x00, // flags
- 0x00, 0x00, 0x00, 0x02, // creation_time
- 0x00, 0x00, 0x00, 0x03, // modification_time
- timescale >> 24 & 0xFF, timescale >> 16 & 0xFF, timescale >> 8 & 0xFF, timescale & 0xFF, // timescale
- duration >> 24, duration >> 16 & 0xFF, duration >> 8 & 0xFF, duration & 0xFF, // duration
- 0x55, 0xc4, // 'und' language (undetermined)
- 0x00, 0x00]));
- }
- }, {
- key: 'mdia',
- value: function mdia(track) {
- return MP4.box(MP4.types.mdia, MP4.mdhd(track.timescale, track.duration), MP4.hdlr(track.type), MP4.minf(track));
- }
- }, {
- key: 'mfhd',
- value: function mfhd(sequenceNumber) {
- return MP4.box(MP4.types.mfhd, new Uint8Array([0x00, 0x00, 0x00, 0x00, // flags
- sequenceNumber >> 24, sequenceNumber >> 16 & 0xFF, sequenceNumber >> 8 & 0xFF, sequenceNumber & 0xFF]));
- }
- }, {
- key: 'minf',
- // sequence_number
- value: function minf(track) {
- if (track.type === 'audio') {
- return MP4.box(MP4.types.minf, MP4.box(MP4.types.smhd, MP4.SMHD), MP4.DINF, MP4.stbl(track));
- } else {
- return MP4.box(MP4.types.minf, MP4.box(MP4.types.vmhd, MP4.VMHD), MP4.DINF, MP4.stbl(track));
- }
- }
- }, {
- key: 'moof',
- value: function moof(sn, baseMediaDecodeTime, track) {
- return MP4.box(MP4.types.moof, MP4.mfhd(sn), MP4.traf(track, baseMediaDecodeTime));
- }
-
- /**
- * @param tracks... (optional) {array} the tracks associated with this movie
- */
- }, {
- key: 'moov',
- value: function moov(tracks) {
- var i = tracks.length,
- boxes = [];
-
- while (i--) {
- boxes[i] = MP4.trak(tracks[i]);
- }
-
- return MP4.box.apply(null, [MP4.types.moov, MP4.mvhd(tracks[0].timescale, tracks[0].duration)].concat(boxes).concat(MP4.mvex(tracks)));
- }
- }, {
- key: 'mvex',
- value: function mvex(tracks) {
- var i = tracks.length,
- boxes = [];
-
- while (i--) {
- boxes[i] = MP4.trex(tracks[i]);
- }
- return MP4.box.apply(null, [MP4.types.mvex].concat(boxes));
- }
- }, {
- key: 'mvhd',
- value: function mvhd(timescale, duration) {
- var bytes = new Uint8Array([0x00, // version 0
- 0x00, 0x00, 0x00, // flags
- 0x00, 0x00, 0x00, 0x01, // creation_time
- 0x00, 0x00, 0x00, 0x02, // modification_time
- timescale >> 24 & 0xFF, timescale >> 16 & 0xFF, timescale >> 8 & 0xFF, timescale & 0xFF, // timescale
- duration >> 24 & 0xFF, duration >> 16 & 0xFF, duration >> 8 & 0xFF, 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 MP4.box(MP4.types.mvhd, bytes);
- }
- }, {
- key: 'sdtp',
- value: function sdtp(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 MP4.box(MP4.types.sdtp, bytes);
- }
- }, {
- key: 'stbl',
- value: function stbl(track) {
- return MP4.box(MP4.types.stbl, MP4.stsd(track), MP4.box(MP4.types.stts, MP4.STTS), MP4.box(MP4.types.stsc, MP4.STSC), MP4.box(MP4.types.stsz, MP4.STSZ), MP4.box(MP4.types.stco, MP4.STCO));
- }
- }, {
- key: 'avc1',
- value: function avc1(track) {
- var sps = [],
- pps = [],
- i,
- data,
- len;
- // assemble the SPSs
-
- for (i = 0; i < track.sps.length; i++) {
- data = track.sps[i];
- len = data.byteLength;
- sps.push(len >>> 8 & 0xFF);
- sps.push(len & 0xFF);
- sps = sps.concat(Array.prototype.slice.call(data)); // SPS
- }
-
- // assemble the PPSs
- for (i = 0; i < track.pps.length; i++) {
- data = track.pps[i];
- len = data.byteLength;
- pps.push(len >>> 8 & 0xFF);
- pps.push(len & 0xFF);
- pps = pps.concat(Array.prototype.slice.call(data));
- }
-
- var avcc = MP4.box(MP4.types.avcC, new Uint8Array([0x01, // version
- sps[3], // profile
- sps[4], // profile compat
- sps[5], // level
- 0xfc | 3, // lengthSizeMinusOne, hard-coded to 4 bytes
- 0xE0 | track.sps.length // 3bit reserved (111) + numOfSequenceParameterSets
- ].concat(sps).concat([track.pps.length // numOfPictureParameterSets
- ]).concat(pps))); // "PPS"
- //console.log('avcc:' + Hex.hexDump(avcc));
- return MP4.box(MP4.types.avc1, new Uint8Array([0x00, 0x00, 0x00, // reserved
- 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 >> 8 & 0xFF, track.width & 0xff, // width
- track.height >> 8 & 0xFF, 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
- avcc, MP4.box(MP4.types.btrt, new Uint8Array([0x00, 0x1c, 0x9c, 0x80, // bufferSizeDB
- 0x00, 0x2d, 0xc6, 0xc0, // maxBitrate
- 0x00, 0x2d, 0xc6, 0xc0])) // avgBitrate
- );
- }
- }, {
- key: 'esds',
- value: function esds(track) {
- return new Uint8Array([0x00, // version 0
- 0x00, 0x00, 0x00, // flags
-
- 0x03, // descriptor_type
- 0x17 + track.config.length, // length
- 0x00, 0x01, //es_id
- 0x00, // stream_priority
-
- 0x04, // descriptor_type
- 0x0f + track.config.length, // length
- 0x40, //codec : mpeg4_audio
- 0x15, // stream_type
- 0x00, 0x00, 0x00, // buffer_size
- 0x00, 0x00, 0x00, 0x00, // maxBitrate
- 0x00, 0x00, 0x00, 0x00, // avgBitrate
-
- 0x05 // descriptor_type
- ].concat([track.config.length]).concat(track.config).concat([0x06, 0x01, 0x02])); // GASpecificConfig)); // length + audio config descriptor
- }
- }, {
- key: 'mp4a',
- value: function mp4a(track) {
- return MP4.box(MP4.types.mp4a, new Uint8Array([0x00, 0x00, 0x00, // reserved
- 0x00, 0x00, 0x00, // reserved
- 0x00, 0x01, // data_reference_index
- 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // reserved
- 0x00, track.channelCount, // channelcount
- 0x00, 0x10, // sampleSize:16bits
- 0x00, 0x00, 0x00, 0x00, // reserved2
- track.audiosamplerate >> 8 & 0xFF, track.audiosamplerate & 0xff, //
- 0x00, 0x00]), MP4.box(MP4.types.esds, MP4.esds(track)));
- }
- }, {
- key: 'stsd',
- value: function stsd(track) {
- if (track.type === 'audio') {
- return MP4.box(MP4.types.stsd, MP4.STSD, MP4.mp4a(track));
- } else {
- return MP4.box(MP4.types.stsd, MP4.STSD, MP4.avc1(track));
- }
- }
- }, {
- key: 'tkhd',
- value: function tkhd(track) {
- return MP4.box(MP4.types.tkhd, new Uint8Array([0x00, // version 0
- 0x00, 0x00, 0x07, // flags
- 0x00, 0x00, 0x00, 0x00, // creation_time
- 0x00, 0x00, 0x00, 0x00, // modification_time
- track.id >> 24 & 0xFF, track.id >> 16 & 0xFF, track.id >> 8 & 0xFF, track.id & 0xFF, // track_ID
- 0x00, 0x00, 0x00, 0x00, // reserved
- track.duration >> 24, track.duration >> 16 & 0xFF, track.duration >> 8 & 0xFF, track.duration & 0xFF, // duration
- 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // reserved
- 0x00, 0x00, // layer
- 0x00, 0x00, // alternate_group
- 0x00, 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 >> 8 & 0xFF, track.width & 0xFF, 0x00, 0x00, // width
- track.height >> 8 & 0xFF, track.height & 0xFF, 0x00, 0x00 // height
- ]));
- }
- }, {
- key: 'traf',
- value: function traf(track, baseMediaDecodeTime) {
- var sampleDependencyTable = MP4.sdtp(track);
- return MP4.box(MP4.types.traf, MP4.box(MP4.types.tfhd, new Uint8Array([0x00, // version 0
- 0x00, 0x00, 0x00, // flags
- track.id >> 24, track.id >> 16 & 0XFF, track.id >> 8 & 0XFF, track.id & 0xFF])), // track_ID
- MP4.box(MP4.types.tfdt, new Uint8Array([0x00, // version 0
- 0x00, 0x00, 0x00, // flags
- baseMediaDecodeTime >> 24, baseMediaDecodeTime >> 16 & 0XFF, baseMediaDecodeTime >> 8 & 0XFF, baseMediaDecodeTime & 0xFF])), // baseMediaDecodeTime
- MP4.trun(track, sampleDependencyTable.length + 16 + // tfhd
- 16 + // tfdt
- 8 + // traf header
- 16 + // mfhd
- 8 + // moof header
- 8), // mdat header
- sampleDependencyTable);
- }
-
- /**
- * Generate a track box.
- * @param track {object} a track definition
- * @return {Uint8Array} the track box
- */
- }, {
- key: 'trak',
- value: function trak(track) {
- track.duration = track.duration || 0xffffffff;
- return MP4.box(MP4.types.trak, MP4.tkhd(track), MP4.mdia(track));
- }
- }, {
- key: 'trex',
- value: function trex(track) {
- return MP4.box(MP4.types.trex, new Uint8Array([0x00, // version 0
- 0x00, 0x00, 0x00, // flags
- track.id >> 24, track.id >> 16 & 0XFF, track.id >> 8 & 0XFF, 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
- ]));
- }
- }, {
- key: 'trun',
- value: function trun(track, offset) {
- var samples, sample, i, array;
- samples = track.samples || [];
- array = new Uint8Array(12 + 16 * samples.length);
- offset += 8 + array.byteLength;
- array.set([0x00, // version 0
- 0x00, 0x0f, 0x01, // flags
- samples.length >>> 24 & 0xFF, samples.length >>> 16 & 0xFF, samples.length >>> 8 & 0xFF, samples.length & 0xFF, // sample_count
- offset >>> 24 & 0xFF, offset >>> 16 & 0xFF, offset >>> 8 & 0xFF, offset & 0xFF // data_offset
- ], 0);
- for (i = 0; i < samples.length; i++) {
- sample = samples[i];
- array.set([sample.duration >>> 24 & 0xFF, sample.duration >>> 16 & 0xFF, sample.duration >>> 8 & 0xFF, sample.duration & 0xFF, // sample_duration
- sample.size >>> 24 & 0xFF, sample.size >>> 16 & 0xFF, sample.size >>> 8 & 0xFF, sample.size & 0xFF, // sample_size
- sample.flags.isLeading << 2 | sample.flags.dependsOn, sample.flags.isDependedOn << 6 | sample.flags.hasRedundancy << 4 | sample.flags.paddingValue << 1 | sample.flags.isNonSync, sample.flags.degradPrio & 0xF0 << 8, sample.flags.degradPrio & 0x0F, // sample_flags
- sample.cts >>> 24 & 0xFF, sample.cts >>> 16 & 0xFF, sample.cts >>> 8 & 0xFF, sample.cts & 0xFF // sample_composition_time_offset
- ], 12 + 16 * i);
- }
- return MP4.box(MP4.types.trun, array);
- }
- }, {
- key: 'initSegment',
- value: function initSegment(tracks) {
- if (!MP4.types) {
- MP4.init();
- }
- var movie = MP4.moov(tracks),
- result;
- result = new Uint8Array(MP4.FTYP.byteLength + movie.byteLength);
- result.set(MP4.FTYP);
- result.set(movie, MP4.FTYP.byteLength);
- return result;
- }
- }]);
-
- return MP4;
-})();
-
-exports['default'] = MP4;
-module.exports = exports['default'];
-
-},{}],19:[function(require,module,exports){
-/**
- * fMP4 remuxer
-*/
-
-'use strict';
-
-Object.defineProperty(exports, '__esModule', {
- value: true
-});
-
-var _createClass = (function () { function defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ('value' in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor; }; })();
-
-function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { 'default': obj }; }
-
-function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError('Cannot call a class as a function'); } }
-
-var _events = require('../events');
-
-var _events2 = _interopRequireDefault(_events);
-
-var _utilsLogger = require('../utils/logger');
-
-var _remuxMp4Generator = require('../remux/mp4-generator');
-
-var _remuxMp4Generator2 = _interopRequireDefault(_remuxMp4Generator);
-
-var _errors = require('../errors');
-
-var MP4Remuxer = (function () {
- function MP4Remuxer(observer) {
- _classCallCheck(this, MP4Remuxer);
-
- this.observer = observer;
- this.ISGenerated = false;
- this.PES2MP4SCALEFACTOR = 4;
- this.PES_TIMESCALE = 90000;
- this.MP4_TIMESCALE = this.PES_TIMESCALE / this.PES2MP4SCALEFACTOR;
- }
-
- _createClass(MP4Remuxer, [{
- key: 'destroy',
- value: function destroy() {}
- }, {
- key: 'insertDiscontinuity',
- value: function insertDiscontinuity() {
- this._initPTS = this._initDTS = this.nextAacPts = this.nextAvcDts = undefined;
- }
- }, {
- key: 'switchLevel',
- value: function switchLevel() {
- this.ISGenerated = false;
- }
- }, {
- key: 'remux',
- value: function remux(audioTrack, videoTrack, id3Track, timeOffset, contiguous) {
- // generate Init Segment if needed
- if (!this.ISGenerated) {
- this.generateIS(audioTrack, videoTrack, timeOffset);
- }
- //logger.log('nb AVC samples:' + videoTrack.samples.length);
- if (videoTrack.samples.length) {
- this.remuxVideo(videoTrack, timeOffset, contiguous);
- }
- //logger.log('nb AAC samples:' + audioTrack.samples.length);
- if (audioTrack.samples.length) {
- this.remuxAudio(audioTrack, timeOffset, contiguous);
- }
- //logger.log('nb ID3 samples:' + audioTrack.samples.length);
- if (id3Track.samples.length) {
- this.remuxID3(id3Track, timeOffset);
- }
- //notify end of parsing
- this.observer.trigger(_events2['default'].FRAG_PARSED);
- }
- }, {
- key: 'generateIS',
- value: function generateIS(audioTrack, videoTrack, timeOffset) {
- var observer = this.observer,
- audioSamples = audioTrack.samples,
- videoSamples = videoTrack.samples,
- nbAudio = audioSamples.length,
- nbVideo = videoSamples.length,
- pesTimeScale = this.PES_TIMESCALE;
-
- if (nbAudio === 0 && nbVideo === 0) {
- observer.trigger(_events2['default'].ERROR, { type: _errors.ErrorTypes.MEDIA_ERROR, details: _errors.ErrorDetails.FRAG_PARSING_ERROR, fatal: false, reason: 'no audio/video samples found' });
- } else if (nbVideo === 0) {
- //audio only
- if (audioTrack.config) {
- observer.trigger(_events2['default'].FRAG_PARSING_INIT_SEGMENT, {
- audioMoov: _remuxMp4Generator2['default'].initSegment([audioTrack]),
- audioCodec: audioTrack.codec,
- audioChannelCount: audioTrack.channelCount
- });
- this.ISGenerated = true;
- }
- if (this._initPTS === undefined) {
- // remember first PTS of this demuxing context
- this._initPTS = audioSamples[0].pts - pesTimeScale * timeOffset;
- this._initDTS = audioSamples[0].dts - pesTimeScale * timeOffset;
- }
- } else if (nbAudio === 0) {
- //video only
- if (videoTrack.sps && videoTrack.pps) {
- observer.trigger(_events2['default'].FRAG_PARSING_INIT_SEGMENT, {
- videoMoov: _remuxMp4Generator2['default'].initSegment([videoTrack]),
- videoCodec: videoTrack.codec,
- videoWidth: videoTrack.width,
- videoHeight: videoTrack.height
- });
- this.ISGenerated = true;
- if (this._initPTS === undefined) {
- // remember first PTS of this demuxing context
- this._initPTS = videoSamples[0].pts - pesTimeScale * timeOffset;
- this._initDTS = videoSamples[0].dts - pesTimeScale * timeOffset;
- }
- }
- } else {
- //audio and video
- if (audioTrack.config && videoTrack.sps && videoTrack.pps) {
- observer.trigger(_events2['default'].FRAG_PARSING_INIT_SEGMENT, {
- audioMoov: _remuxMp4Generator2['default'].initSegment([audioTrack]),
- audioCodec: audioTrack.codec,
- audioChannelCount: audioTrack.channelCount,
- videoMoov: _remuxMp4Generator2['default'].initSegment([videoTrack]),
- videoCodec: videoTrack.codec,
- videoWidth: videoTrack.width,
- videoHeight: videoTrack.height
- });
- this.ISGenerated = true;
- if (this._initPTS === undefined) {
- // remember first PTS of this demuxing context
- this._initPTS = Math.min(videoSamples[0].pts, audioSamples[0].pts) - pesTimeScale * timeOffset;
- this._initDTS = Math.min(videoSamples[0].dts, audioSamples[0].dts) - pesTimeScale * timeOffset;
- }
- }
- }
- }
- }, {
- key: 'remuxVideo',
- value: function remuxVideo(track, timeOffset, contiguous) {
- var view,
- i = 8,
- pesTimeScale = this.PES_TIMESCALE,
- pes2mp4ScaleFactor = this.PES2MP4SCALEFACTOR,
- avcSample,
- mp4Sample,
- mp4SampleLength,
- unit,
- mdat,
- moof,
- firstPTS,
- firstDTS,
- lastDTS,
- pts,
- dts,
- ptsnorm,
- dtsnorm,
- samples = [];
- /* concatenate the video data and construct the mdat in place
- (need 8 more bytes to fill length and mpdat type) */
- mdat = new Uint8Array(track.len + 4 * track.nbNalu + 8);
- view = new DataView(mdat.buffer);
- view.setUint32(0, mdat.byteLength);
- mdat.set(_remuxMp4Generator2['default'].types.mdat, 4);
- while (track.samples.length) {
- avcSample = track.samples.shift();
- mp4SampleLength = 0;
- // convert NALU bitstream to MP4 format (prepend NALU with size field)
- while (avcSample.units.units.length) {
- unit = avcSample.units.units.shift();
- view.setUint32(i, unit.data.byteLength);
- i += 4;
- mdat.set(unit.data, i);
- i += unit.data.byteLength;
- mp4SampleLength += 4 + unit.data.byteLength;
- }
- pts = avcSample.pts - this._initDTS;
- dts = avcSample.dts - this._initDTS;
- //logger.log('Video/PTS/DTS:' + pts + '/' + dts);
- // if not first AVC sample of video track, normalize PTS/DTS with previous sample value
- // and ensure that sample duration is positive
- if (lastDTS !== undefined) {
- ptsnorm = this._PTSNormalize(pts, lastDTS);
- dtsnorm = this._PTSNormalize(dts, lastDTS);
- mp4Sample.duration = (dtsnorm - lastDTS) / pes2mp4ScaleFactor;
- if (mp4Sample.duration < 0) {
- //logger.log('invalid sample duration at PTS/DTS::' + avcSample.pts + '/' + avcSample.dts + ':' + mp4Sample.duration);
- mp4Sample.duration = 0;
- }
- } else {
- var nextAvcDts = this.nextAvcDts,
- delta;
- // first AVC sample of video track, normalize PTS/DTS
- ptsnorm = this._PTSNormalize(pts, nextAvcDts);
- dtsnorm = this._PTSNormalize(dts, nextAvcDts);
- delta = Math.round((dtsnorm - nextAvcDts) / 90);
- // if fragment are contiguous, or delta less than 600ms, ensure there is no overlap/hole between fragments
- if (contiguous || Math.abs(delta) < 600) {
- if (delta) {
- if (delta > 1) {
- _utilsLogger.logger.log('AVC:' + delta + ' ms hole between fragments detected,filling it');
- } else if (delta < -1) {
- _utilsLogger.logger.log('AVC:' + -delta + ' ms overlapping between fragments detected');
- }
- // set DTS to next DTS
- dtsnorm = nextAvcDts;
- // offset PTS as well, ensure that PTS is smaller or equal than new DTS
- ptsnorm = Math.max(ptsnorm - delta, dtsnorm);
- _utilsLogger.logger.log('Video/PTS/DTS adjusted:' + ptsnorm + '/' + dtsnorm);
- }
- }
- // remember first PTS of our avcSamples, ensure value is positive
- firstPTS = Math.max(0, ptsnorm);
- firstDTS = Math.max(0, dtsnorm);
- }
- //console.log('PTS/DTS/initDTS/normPTS/normDTS/relative PTS : ${avcSample.pts}/${avcSample.dts}/${this._initDTS}/${ptsnorm}/${dtsnorm}/${(avcSample.pts/4294967296).toFixed(3)}');
- mp4Sample = {
- size: mp4SampleLength,
- duration: 0,
- cts: (ptsnorm - dtsnorm) / pes2mp4ScaleFactor,
- flags: {
- isLeading: 0,
- isDependedOn: 0,
- hasRedundancy: 0,
- degradPrio: 0
- }
- };
- if (avcSample.key === true) {
- // the current sample is a key frame
- mp4Sample.flags.dependsOn = 2;
- mp4Sample.flags.isNonSync = 0;
- } else {
- mp4Sample.flags.dependsOn = 1;
- mp4Sample.flags.isNonSync = 1;
- }
- samples.push(mp4Sample);
- lastDTS = dtsnorm;
- }
- if (samples.length >= 2) {
- mp4Sample.duration = samples[samples.length - 2].duration;
- }
- // next AVC sample DTS should be equal to last sample DTS + last sample duration
- this.nextAvcDts = dtsnorm + mp4Sample.duration * pes2mp4ScaleFactor;
- track.len = 0;
- track.nbNalu = 0;
- if (navigator.userAgent.toLowerCase().indexOf('chrome') > -1) {
- // chrome workaround, mark first sample as being a Random Access Point to avoid sourcebuffer append issue
- // https://code.google.com/p/chromium/issues/detail?id=229412
- samples[0].flags.dependsOn = 2;
- samples[0].flags.isNonSync = 0;
- }
- track.samples = samples;
- moof = _remuxMp4Generator2['default'].moof(track.sequenceNumber++, firstDTS / pes2mp4ScaleFactor, track);
- track.samples = [];
- this.observer.trigger(_events2['default'].FRAG_PARSING_DATA, {
- moof: moof,
- mdat: mdat,
- startPTS: firstPTS / pesTimeScale,
- endPTS: (ptsnorm + pes2mp4ScaleFactor * mp4Sample.duration) / pesTimeScale,
- startDTS: firstDTS / pesTimeScale,
- endDTS: (dtsnorm + pes2mp4ScaleFactor * mp4Sample.duration) / pesTimeScale,
- type: 'video',
- nb: samples.length
- });
- }
- }, {
- key: 'remuxAudio',
- value: function remuxAudio(track, timeOffset, contiguous) {
- var view,
- i = 8,
- pesTimeScale = this.PES_TIMESCALE,
- pes2mp4ScaleFactor = this.PES2MP4SCALEFACTOR,
- aacSample,
- mp4Sample,
- unit,
- mdat,
- moof,
- firstPTS,
- firstDTS,
- lastDTS,
- pts,
- dts,
- ptsnorm,
- dtsnorm,
- samples = [];
- /* concatenate the audio data and construct the mdat in place
- (need 8 more bytes to fill length and mdat type) */
- mdat = new Uint8Array(track.len + 8);
- view = new DataView(mdat.buffer);
- view.setUint32(0, mdat.byteLength);
- mdat.set(_remuxMp4Generator2['default'].types.mdat, 4);
- while (track.samples.length) {
- aacSample = track.samples.shift();
- unit = aacSample.unit;
- mdat.set(unit, i);
- i += unit.byteLength;
- pts = aacSample.pts - this._initDTS;
- dts = aacSample.dts - this._initDTS;
- //logger.log('Audio/PTS:' + aacSample.pts.toFixed(0));
- if (lastDTS !== undefined) {
- ptsnorm = this._PTSNormalize(pts, lastDTS);
- dtsnorm = this._PTSNormalize(dts, lastDTS);
- // we use DTS to compute sample duration, but we use PTS to compute initPTS which is used to sync audio and video
- mp4Sample.duration = (dtsnorm - lastDTS) / pes2mp4ScaleFactor;
- if (mp4Sample.duration < 0) {
- _utilsLogger.logger.log('invalid AAC sample duration at PTS:' + aacSample.pts + ':' + mp4Sample.duration);
- mp4Sample.duration = 0;
- }
- } else {
- var nextAacPts = this.nextAacPts,
- delta;
- ptsnorm = this._PTSNormalize(pts, nextAacPts);
- dtsnorm = this._PTSNormalize(dts, nextAacPts);
- delta = Math.round(1000 * (ptsnorm - nextAacPts) / pesTimeScale);
- // if fragment are contiguous, or delta less than 600ms, ensure there is no overlap/hole between fragments
- if (contiguous || Math.abs(delta) < 600) {
- // log delta
- if (delta) {
- if (delta > 1) {
- _utilsLogger.logger.log(delta + ' ms hole between AAC samples detected,filling it');
- // set PTS to next PTS, and ensure PTS is greater or equal than last DTS
- } else if (delta < -1) {
- _utilsLogger.logger.log(-delta + ' ms overlapping between AAC samples detected');
- }
- // set DTS to next DTS
- ptsnorm = dtsnorm = nextAacPts;
- }
- }
- // remember first PTS of our aacSamples, ensure value is positive
- firstPTS = Math.max(0, ptsnorm);
- firstDTS = Math.max(0, dtsnorm);
- }
- //console.log('PTS/DTS/initDTS/normPTS/normDTS/relative PTS : ${aacSample.pts}/${aacSample.dts}/${this._initDTS}/${ptsnorm}/${dtsnorm}/${(aacSample.pts/4294967296).toFixed(3)}');
- mp4Sample = {
- size: unit.byteLength,
- cts: 0,
- duration: 0,
- flags: {
- isLeading: 0,
- isDependedOn: 0,
- hasRedundancy: 0,
- degradPrio: 0,
- dependsOn: 1
- }
- };
- samples.push(mp4Sample);
- lastDTS = dtsnorm;
- }
- //set last sample duration as being identical to previous sample
- if (samples.length >= 2) {
- mp4Sample.duration = samples[samples.length - 2].duration;
- }
- // next aac sample PTS should be equal to last sample PTS + duration
- this.nextAacPts = ptsnorm + pes2mp4ScaleFactor * mp4Sample.duration;
- //logger.log('Audio/PTS/PTSend:' + aacSample.pts.toFixed(0) + '/' + this.nextAacDts.toFixed(0));
- track.len = 0;
- track.samples = samples;
- moof = _remuxMp4Generator2['default'].moof(track.sequenceNumber++, firstDTS / pes2mp4ScaleFactor, track);
- track.samples = [];
- this.observer.trigger(_events2['default'].FRAG_PARSING_DATA, {
- moof: moof,
- mdat: mdat,
- startPTS: firstPTS / pesTimeScale,
- endPTS: this.nextAacPts / pesTimeScale,
- startDTS: firstDTS / pesTimeScale,
- endDTS: (dtsnorm + pes2mp4ScaleFactor * mp4Sample.duration) / pesTimeScale,
- type: 'audio',
- nb: samples.length
- });
- }
- }, {
- key: 'remuxID3',
- value: function remuxID3(track, timeOffset) {
- var length = track.samples.length,
- sample;
- // consume samples
- if (length) {
- for (var index = 0; index < length; index++) {
- sample = track.samples[index];
- // setting id3 pts, dts to relative time
- // using this._initPTS and this._initDTS to calculate relative time
- sample.pts = (sample.pts - this._initPTS) / this.PES_TIMESCALE;
- sample.dts = (sample.dts - this._initDTS) / this.PES_TIMESCALE;
- }
- this.observer.trigger(_events2['default'].FRAG_PARSING_METADATA, {
- samples: track.samples
- });
- }
-
- track.samples = [];
- timeOffset = timeOffset;
- }
- }, {
- key: '_PTSNormalize',
- value: function _PTSNormalize(value, reference) {
- var offset;
- if (reference === undefined) {
- return value;
- }
- if (reference < value) {
- // - 2^33
- offset = -8589934592;
- } else {
- // + 2^33
- offset = 8589934592;
- }
- /* PTS is 33bit (from 0 to 2^33 -1)
- if diff between value and reference is bigger than half of the amplitude (2^32) then it means that
- PTS looping occured. fill the gap */
- while (Math.abs(value - reference) > 4294967296) {
- value += offset;
- }
- return value;
- }
- }, {
- key: 'timescale',
- get: function get() {
- return this.MP4_TIMESCALE;
- }
- }]);
-
- return MP4Remuxer;
-})();
-
-exports['default'] = MP4Remuxer;
-module.exports = exports['default'];
-
-},{"../errors":11,"../events":12,"../remux/mp4-generator":18,"../utils/logger":21}],20:[function(require,module,exports){
-"use strict";
-
-var BinarySearch = {
- /**
- * Searches for an item in an array which matches a certain condition.
- * This requires the condition to only match one item in the array,
- * and for the array to be ordered.
- *
- * @param {Array} list The array to search.
- * @param {Function} comparisonFunction
- * Called and provided a candidate item as the first argument.
- * Should return:
- * > -1 if the item should be located at a lower index than the provided item.
- * > 1 if the item should be located at a higher index than the provided item.
- * > 0 if the item is the item you're looking for.
- *
- * @return {*} The object if it is found or null otherwise.
- */
- search: function search(list, comparisonFunction) {
- var minIndex = 0;
- var maxIndex = list.length - 1;
- var currentIndex = null;
- var currentElement = null;
-
- while (minIndex <= maxIndex) {
- currentIndex = (minIndex + maxIndex) / 2 | 0;
- currentElement = list[currentIndex];
-
- var comparisonResult = comparisonFunction(currentElement);
- if (comparisonResult > 0) {
- minIndex = currentIndex + 1;
- } else if (comparisonResult < 0) {
- maxIndex = currentIndex - 1;
- } else {
- return currentElement;
- }
- }
-
- return null;
- }
-};
-
-module.exports = BinarySearch;
-
-},{}],21:[function(require,module,exports){
-'use strict';
-
-Object.defineProperty(exports, '__esModule', {
- value: true
-});
-function noop() {}
-
-var fakeLogger = {
- log: noop,
- warn: noop,
- info: noop,
- error: noop
-};
-
-var exportedLogger = fakeLogger;
-
-var enableLogs = function enableLogs(debug) {
- if (debug === true || typeof debug === 'object') {
- exportedLogger.log = debug.log ? debug.log.bind(debug) : console.log.bind(console);
- exportedLogger.info = debug.info ? debug.info.bind(debug) : console.info.bind(console);
- exportedLogger.error = debug.error ? debug.error.bind(debug) : console.error.bind(console);
- exportedLogger.warn = debug.warn ? debug.warn.bind(debug) : console.warn.bind(console);
- // Some browsers don't allow to use bind on console object anyway
- // fallback to default if needed
- try {
- exportedLogger.log();
- } catch (e) {
- exportedLogger.log = noop;
- exportedLogger.info = noop;
- exportedLogger.error = noop;
- exportedLogger.warn = noop;
- }
- } else {
- exportedLogger = fakeLogger;
- }
-};
-
-exports.enableLogs = enableLogs;
-var logger = exportedLogger;
-exports.logger = logger;
-
-},{}],22:[function(require,module,exports){
-'use strict';
-
-var URLHelper = {
-
- // build an absolute URL from a relative one using the provided baseURL
- // if relativeURL is an absolute URL it will be returned as is.
- buildAbsoluteURL: function buildAbsoluteURL(baseURL, relativeURL) {
- // remove any remaining space and CRLF
- relativeURL = relativeURL.trim();
- if (/^[a-z]+:/i.test(relativeURL)) {
- // complete url, not relative
- return relativeURL;
- }
-
- var relativeURLQuery = null;
- var relativeURLHash = null;
-
- var relativeURLHashSplit = /^([^#]*)(.*)$/.exec(relativeURL);
- if (relativeURLHashSplit) {
- relativeURLHash = relativeURLHashSplit[2];
- relativeURL = relativeURLHashSplit[1];
- }
- var relativeURLQuerySplit = /^([^\?]*)(.*)$/.exec(relativeURL);
- if (relativeURLQuerySplit) {
- relativeURLQuery = relativeURLQuerySplit[2];
- relativeURL = relativeURLQuerySplit[1];
- }
-
- var baseURLHashSplit = /^([^#]*)(.*)$/.exec(baseURL);
- if (baseURLHashSplit) {
- baseURL = baseURLHashSplit[1];
- }
- var baseURLQuerySplit = /^([^\?]*)(.*)$/.exec(baseURL);
- if (baseURLQuerySplit) {
- baseURL = baseURLQuerySplit[1];
- }
-
- var baseURLDomainSplit = /^((([a-z]+):)?\/\/[a-z0-9\.-]+(:[0-9]+)?\/)(.*)$/i.exec(baseURL);
- var baseURLProtocol = baseURLDomainSplit[3];
- var baseURLDomain = baseURLDomainSplit[1];
- var baseURLPath = baseURLDomainSplit[5];
-
- var builtURL = null;
- if (/^\/\//.test(relativeURL)) {
- builtURL = baseURLProtocol + '://' + URLHelper.buildAbsolutePath('', relativeURL.substring(2));
- } else if (/^\//.test(relativeURL)) {
- builtURL = baseURLDomain + URLHelper.buildAbsolutePath('', relativeURL.substring(1));
- } else {
- var newPath = URLHelper.buildAbsolutePath(baseURLPath, relativeURL);
- builtURL = baseURLDomain + newPath;
- }
-
- // put the query and hash parts back
- if (relativeURLQuery) {
- builtURL += relativeURLQuery;
- }
- if (relativeURLHash) {
- builtURL += relativeURLHash;
- }
- return builtURL;
- },
-
- // build an absolute path using the provided basePath
- // adapted from https://developer.mozilla.org/en-US/docs/Web/API/document/cookie#Using_relative_URLs_in_the_path_parameter
- // this does not handle the case where relativePath is "/" or "//". These cases should be handled outside this.
- buildAbsolutePath: function buildAbsolutePath(basePath, relativePath) {
- var sRelPath = relativePath;
- var nUpLn,
- sDir = '',
- sPath = basePath.replace(/[^\/]*$/, sRelPath.replace(/(\/|^)(?:\.?\/+)+/g, '$1'));
- for (var nEnd, nStart = 0; nEnd = sPath.indexOf('/../', nStart), nEnd > -1; nStart = nEnd + nUpLn) {
- nUpLn = /^\/(?:\.\.\/)*/.exec(sPath.slice(nEnd))[0].length;
- sDir = (sDir + sPath.substring(nStart, nEnd)).replace(new RegExp('(?:\\\/+[^\\\/]*){0,' + (nUpLn - 1) / 3 + '}$'), '/');
- }
- return sDir + sPath.substr(nStart);
- }
-};
-
-module.exports = URLHelper;
-
-},{}],23:[function(require,module,exports){
-/**
- * XHR based logger
-*/
-
-'use strict';
-
-Object.defineProperty(exports, '__esModule', {
- value: true
-});
-
-var _createClass = (function () { function defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ('value' in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor; }; })();
-
-function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError('Cannot call a class as a function'); } }
-
-var _utilsLogger = require('../utils/logger');
-
-var XhrLoader = (function () {
- function XhrLoader(config) {
- _classCallCheck(this, XhrLoader);
-
- if (config && config.xhrSetup) {
- this.xhrSetup = config.xhrSetup;
- }
- }
-
- _createClass(XhrLoader, [{
- key: 'destroy',
- value: function destroy() {
- this.abort();
- this.loader = null;
- }
- }, {
- key: 'abort',
- value: function abort() {
- if (this.loader && this.loader.readyState !== 4) {
- this.stats.aborted = true;
- this.loader.abort();
- }
- if (this.timeoutHandle) {
- window.clearTimeout(this.timeoutHandle);
- }
- }
- }, {
- key: 'load',
- value: function load(url, responseType, onSuccess, onError, onTimeout, timeout, maxRetry, retryDelay) {
- var onProgress = arguments.length <= 8 || arguments[8] === undefined ? null : arguments[8];
- var frag = arguments.length <= 9 || arguments[9] === undefined ? null : arguments[9];
-
- this.url = url;
- if (frag && !isNaN(frag.byteRangeStartOffset) && !isNaN(frag.byteRangeEndOffset)) {
- this.byteRange = frag.byteRangeStartOffset + '-' + frag.byteRangeEndOffset;
- }
- this.responseType = responseType;
- this.onSuccess = onSuccess;
- this.onProgress = onProgress;
- this.onTimeout = onTimeout;
- this.onError = onError;
- this.stats = { trequest: performance.now(), retry: 0 };
- this.timeout = timeout;
- this.maxRetry = maxRetry;
- this.retryDelay = retryDelay;
- this.timeoutHandle = window.setTimeout(this.loadtimeout.bind(this), timeout);
- this.loadInternal();
- }
- }, {
- key: 'loadInternal',
- value: function loadInternal() {
- var xhr = this.loader = new XMLHttpRequest();
- xhr.onload = this.loadsuccess.bind(this);
- xhr.onerror = this.loaderror.bind(this);
- xhr.onprogress = this.loadprogress.bind(this);
- xhr.open('GET', this.url, true);
- if (this.byteRange) {
- xhr.setRequestHeader('Range', 'bytes=' + this.byteRange);
- }
- xhr.responseType = this.responseType;
- this.stats.tfirst = null;
- this.stats.loaded = 0;
- if (this.xhrSetup) {
- this.xhrSetup(xhr);
- }
- xhr.send();
- }
- }, {
- key: 'loadsuccess',
- value: function loadsuccess(event) {
- window.clearTimeout(this.timeoutHandle);
- this.stats.tload = performance.now();
- this.onSuccess(event, this.stats);
- }
- }, {
- key: 'loaderror',
- value: function loaderror(event) {
- if (this.stats.retry < this.maxRetry) {
- _utilsLogger.logger.warn(event.type + ' while loading ' + this.url + ', retrying in ' + this.retryDelay + '...');
- this.destroy();
- window.setTimeout(this.loadInternal.bind(this), this.retryDelay);
- // exponential backoff
- this.retryDelay = Math.min(2 * this.retryDelay, 64000);
- this.stats.retry++;
- } else {
- window.clearTimeout(this.timeoutHandle);
- _utilsLogger.logger.error(event.type + ' while loading ' + this.url);
- this.onError(event);
- }
- }
- }, {
- key: 'loadtimeout',
- value: function loadtimeout(event) {
- _utilsLogger.logger.warn('timeout while loading ' + this.url);
- this.onTimeout(event, this.stats);
- }
- }, {
- key: 'loadprogress',
- value: function loadprogress(event) {
- var stats = this.stats;
- if (stats.tfirst === null) {
- stats.tfirst = performance.now();
- }
- stats.loaded = event.loaded;
- if (this.onProgress) {
- this.onProgress(event, stats);
- }
- }
- }]);
-
- return XhrLoader;
-})();
-
-exports['default'] = XhrLoader;
-module.exports = exports['default'];
-
-},{"../utils/logger":21}]},{},[14])(14)
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