(function(f){if(typeof exports==="object"&&typeof module!=="undefined"){module.exports=f()}else if(typeof define==="function"&&define.amd){define([],f)}else{var g;if(typeof window!=="undefined"){g=window}else if(typeof global!=="undefined"){g=global}else if(typeof self!=="undefined"){g=self}else{g=this}g.Hls = f()}})(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 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 if (listeners) { // 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.prototype.listenerCount = function(type) { if (this._events) { var evlistener = this._events[type]; if (isFunction(evlistener)) return 1; else if (evlistener) return evlistener.length; } return 0; }; EventEmitter.listenerCount = function(emitter, type) { return emitter.listenerCount(type); }; 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]; var exp = cache[key].exports; // Using babel as a transpiler to use esmodule, the export will always // be an object with the default export as a property of it. To ensure // the existing api and babel esmodule exports are both supported we // check for both if (exp === fn || exp.default === 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'], ( // try to call default if defined to also support babel esmodule // exports 'var f = require(' + stringify(wkey) + ');' + '(f.default ? f.default : f)(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){ 'use strict'; 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; }; }(); Object.defineProperty(exports, "__esModule", { value: true }); var _events = require('../events'); var _events2 = _interopRequireDefault(_events); var _eventHandler = require('../event-handler'); var _eventHandler2 = _interopRequireDefault(_eventHandler); var _bufferHelper = require('../helper/buffer-helper'); var _bufferHelper2 = _interopRequireDefault(_bufferHelper); var _errors = require('../errors'); var _logger = require('../utils/logger'); 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"); } } function _possibleConstructorReturn(self, call) { if (!self) { throw new ReferenceError("this hasn't been initialised - super() hasn't been called"); } return call && (typeof call === "object" || typeof call === "function") ? call : self; } function _inherits(subClass, superClass) { if (typeof superClass !== "function" && superClass !== null) { throw new TypeError("Super expression must either be null or a function, not " + typeof superClass); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, enumerable: false, writable: true, configurable: true } }); if (superClass) Object.setPrototypeOf ? Object.setPrototypeOf(subClass, superClass) : subClass.__proto__ = superClass; } /* * simple ABR Controller * - compute next level based on last fragment bw heuristics * - implement an abandon rules triggered if we have less than 2 frag buffered and if computed bw shows that we risk buffer stalling */ var AbrController = function (_EventHandler) { _inherits(AbrController, _EventHandler); function AbrController(hls) { _classCallCheck(this, AbrController); var _this = _possibleConstructorReturn(this, Object.getPrototypeOf(AbrController).call(this, hls, _events2.default.FRAG_LOADING, _events2.default.FRAG_LOAD_PROGRESS, _events2.default.FRAG_LOADED, _events2.default.ERROR)); _this.lastLoadedFragLevel = 0; _this._autoLevelCapping = -1; _this._nextAutoLevel = -1; _this.hls = hls; _this.onCheck = _this.abandonRulesCheck.bind(_this); return _this; } _createClass(AbrController, [{ key: 'destroy', value: function destroy() { this.clearTimer(); _eventHandler2.default.prototype.destroy.call(this); } }, { key: 'onFragLoading', value: function onFragLoading(data) { this.timer = setInterval(this.onCheck, 100); this.fragCurrent = data.frag; } }, { key: 'onFragLoadProgress', value: function onFragLoadProgress(data) { var stats = data.stats; // only update stats if first frag loading // if same frag is loaded multiple times, it might be in browser cache, and loaded quickly // and leading to wrong bw estimation if (stats.aborted === undefined && data.frag.loadCounter === 1) { this.lastfetchduration = (performance.now() - stats.trequest) / 1000; this.lastbw = stats.loaded * 8 / this.lastfetchduration; //console.log(`fetchDuration:${this.lastfetchduration},bw:${(this.lastbw/1000).toFixed(0)}/${stats.aborted}`); } } }, { key: 'abandonRulesCheck', value: function abandonRulesCheck() { /* monitor fragment retrieval time... we compute expected time of arrival of the complete fragment. we compare it to expected time of buffer starvation */ var hls = this.hls, v = hls.media, frag = this.fragCurrent; /* only monitor frag retrieval time if (video not paused OR first fragment being loaded(ready state === HAVE_NOTHING = 0)) AND autoswitching enabled AND not lowest level (=> means that we have several levels) */ if (v && (!v.paused || !v.readyState) && frag.autoLevel && frag.level) { 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 = Math.max(1, frag.loaded * 1000 / requestDelay); // byte/s; at least 1 byte/s to avoid division by zero if (frag.expectedLen < frag.loaded) { frag.expectedLen = frag.loaded; } var pos = v.currentTime; var fragLoadedDelay = (frag.expectedLen - frag.loaded) / loadRate; var bufferStarvationDelay = _bufferHelper2.default.bufferInfo(v, pos, hls.config.maxBufferHole).end - pos; // consider emergency switch down only if we have less than 2 frag buffered AND // time to finish loading current fragment is bigger than buffer starvation delay // ie if we risk buffer starvation if bw does not increase quickly if (bufferStarvationDelay < 2 * frag.duration && fragLoadedDelay > bufferStarvationDelay) { var fragLevelNextLoadedDelay = undefined, nextLoadLevel = undefined; // lets iterate through lower level and try to find the biggest one that could avoid rebuffering // we start from current level - 1 and we step down , until we find a matching level for (nextLoadLevel = frag.level - 1; nextLoadLevel >= 0; nextLoadLevel--) { // compute time to load next fragment at lower level // 0.8 : consider only 80% of current bw to be conservative // 8 = bits per byte (bps/Bps) fragLevelNextLoadedDelay = frag.duration * hls.levels[nextLoadLevel].bitrate / (8 * 0.8 * loadRate); _logger.logger.log('fragLoadedDelay/bufferStarvationDelay/fragLevelNextLoadedDelay[' + nextLoadLevel + '] :' + fragLoadedDelay.toFixed(1) + '/' + bufferStarvationDelay.toFixed(1) + '/' + fragLevelNextLoadedDelay.toFixed(1)); if (fragLevelNextLoadedDelay < bufferStarvationDelay) { // we found a lower level that be rebuffering free with current estimated bw ! break; } } // only emergency switch down if it takes less time to load new fragment at lowest level instead // of finishing loading current one ... if (fragLevelNextLoadedDelay < fragLoadedDelay) { // ensure nextLoadLevel is not negative nextLoadLevel = Math.max(0, nextLoadLevel); // force next load level in auto mode hls.nextLoadLevel = nextLoadLevel; // abort fragment loading ... _logger.logger.warn('loading too slow, abort fragment loading and switch to level ' + nextLoadLevel); //abort fragment loading frag.loader.abort(); this.clearTimer(); hls.trigger(_events2.default.FRAG_LOAD_EMERGENCY_ABORTED, { frag: frag }); } } } } } }, { key: 'onFragLoaded', value: function onFragLoaded(data) { // stop monitoring bw once frag loaded this.clearTimer(); // store level id after successful fragment load this.lastLoadedFragLevel = data.frag.level; // reset forced auto level value so that next level will be selected this._nextAutoLevel = -1; } }, { key: 'onError', value: function onError(data) { // stop timer in case of frag loading error switch (data.details) { case _errors.ErrorDetails.FRAG_LOAD_ERROR: case _errors.ErrorDetails.FRAG_LOAD_TIMEOUT: this.clearTimer(); break; default: break; } } }, { key: 'clearTimer', value: function clearTimer() { if (this.timer) { clearInterval(this.timer); this.timer = null; } } /** 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; } // in case next auto level has been forced, return it straight-away (but capped) if (this._nextAutoLevel !== -1) { return Math.min(this._nextAutoLevel, maxAutoLevel); } // 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.lastLoadedFragLevel) { 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; }(_eventHandler2.default); exports.default = AbrController; },{"../errors":20,"../event-handler":21,"../events":22,"../helper/buffer-helper":23,"../utils/logger":36}],4:[function(require,module,exports){ 'use strict'; 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; }; }(); Object.defineProperty(exports, "__esModule", { value: true }); var _events = require('../events'); var _events2 = _interopRequireDefault(_events); var _eventHandler = require('../event-handler'); var _eventHandler2 = _interopRequireDefault(_eventHandler); var _logger = require('../utils/logger'); var _errors = require('../errors'); 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"); } } function _possibleConstructorReturn(self, call) { if (!self) { throw new ReferenceError("this hasn't been initialised - super() hasn't been called"); } return call && (typeof call === "object" || typeof call === "function") ? call : self; } function _inherits(subClass, superClass) { if (typeof superClass !== "function" && superClass !== null) { throw new TypeError("Super expression must either be null or a function, not " + typeof superClass); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, enumerable: false, writable: true, configurable: true } }); if (superClass) Object.setPrototypeOf ? Object.setPrototypeOf(subClass, superClass) : subClass.__proto__ = superClass; } /* * Buffer Controller */ var BufferController = function (_EventHandler) { _inherits(BufferController, _EventHandler); function BufferController(hls) { _classCallCheck(this, BufferController); // Source Buffer listeners var _this = _possibleConstructorReturn(this, Object.getPrototypeOf(BufferController).call(this, hls, _events2.default.MEDIA_ATTACHING, _events2.default.MEDIA_DETACHING, _events2.default.BUFFER_RESET, _events2.default.BUFFER_APPENDING, _events2.default.BUFFER_CODECS, _events2.default.BUFFER_EOS, _events2.default.BUFFER_FLUSHING)); _this.onsbue = _this.onSBUpdateEnd.bind(_this); _this.onsbe = _this.onSBUpdateError.bind(_this); return _this; } _createClass(BufferController, [{ key: 'destroy', value: function destroy() { _eventHandler2.default.prototype.destroy.call(this); } }, { key: 'onMediaAttaching', value: function onMediaAttaching(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); } }, { key: 'onMediaDetaching', value: function onMediaDetaching() { var ms = this.mediaSource; if (ms) { if (ms.readyState === 'open') { try { // endOfStream could trigger exception if any sourcebuffer is in updating state // we don't really care about checking sourcebuffer state here, // as we are anyway detaching the MediaSource // let's just avoid this exception to propagate ms.endOfStream(); } catch (err) { _logger.logger.warn('onMediaDetaching:' + err.message + ' while calling 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.media.removeAttribute('src'); this.mediaSource = null; this.media = null; this.pendingTracks = null; this.sourceBuffer = null; } this.onmso = this.onmse = this.onmsc = null; this.hls.trigger(_events2.default.MEDIA_DETACHED); } }, { key: 'onMediaSourceOpen', value: function onMediaSourceOpen() { _logger.logger.log('media source opened'); this.hls.trigger(_events2.default.MEDIA_ATTACHED, { media: this.media }); // once received, don't listen anymore to sourceopen event this.mediaSource.removeEventListener('sourceopen', this.onmso); // if any buffer codecs pending, treat it here. var pendingTracks = this.pendingTracks; if (pendingTracks) { this.onBufferCodecs(pendingTracks); this.pendingTracks = null; this.doAppending(); } } }, { key: 'onMediaSourceClose', value: function onMediaSourceClose() { _logger.logger.log('media source closed'); } }, { key: 'onMediaSourceEnded', value: function onMediaSourceEnded() { _logger.logger.log('media source ended'); } }, { key: 'onSBUpdateEnd', value: function onSBUpdateEnd() { if (this._needsFlush) { this.doFlush(); } if (this._needsEos) { this.onBufferEos(); } this.hls.trigger(_events2.default.BUFFER_APPENDED); this.doAppending(); } }, { key: 'onSBUpdateError', value: function onSBUpdateError(event) { _logger.logger.error('sourceBuffer error:' + event); // according to http://www.w3.org/TR/media-source/#sourcebuffer-append-error // this error might not always be fatal (it is fatal if decode error is set, in that case // it will be followed by a mediaElement error ...) this.hls.trigger(_events2.default.ERROR, { type: _errors.ErrorTypes.MEDIA_ERROR, details: _errors.ErrorDetails.BUFFER_APPENDING_ERROR, fatal: false }); // we don't need to do more than that, as accordin to the spec, updateend will be fired just after } }, { key: 'onBufferReset', value: function onBufferReset() { var sourceBuffer = this.sourceBuffer; if (sourceBuffer) { for (var type in sourceBuffer) { var sb = sourceBuffer[type]; try { this.mediaSource.removeSourceBuffer(sb); sb.removeEventListener('updateend', this.onsbue); sb.removeEventListener('error', this.onsbe); } catch (err) {} } this.sourceBuffer = null; } this.flushRange = []; this.appended = 0; } }, { key: 'onBufferCodecs', value: function onBufferCodecs(tracks) { var sb, trackName, track, codec, mimeType; if (!this.media) { this.pendingTracks = tracks; return; } if (!this.sourceBuffer) { var sourceBuffer = {}, mediaSource = this.mediaSource; for (trackName in tracks) { track = tracks[trackName]; // use levelCodec as first priority codec = track.levelCodec || track.codec; mimeType = track.container + ';codecs=' + codec; _logger.logger.log('creating sourceBuffer with mimeType:' + mimeType); sb = sourceBuffer[trackName] = mediaSource.addSourceBuffer(mimeType); sb.addEventListener('updateend', this.onsbue); sb.addEventListener('error', this.onsbe); } this.sourceBuffer = sourceBuffer; } } }, { key: 'onBufferAppending', value: function onBufferAppending(data) { if (!this.segments) { this.segments = [data]; } else { this.segments.push(data); } this.doAppending(); } }, { key: 'onBufferAppendFail', value: function onBufferAppendFail(data) { _logger.logger.error('sourceBuffer error:' + data.event); // according to http://www.w3.org/TR/media-source/#sourcebuffer-append-error // this error might not always be fatal (it is fatal if decode error is set, in that case // it will be followed by a mediaElement error ...) this.hls.trigger(_events2.default.ERROR, { type: _errors.ErrorTypes.MEDIA_ERROR, details: _errors.ErrorDetails.BUFFER_APPENDING_ERROR, fatal: false, frag: this.fragCurrent }); } }, { key: 'onBufferEos', value: function onBufferEos() { var sb = this.sourceBuffer, mediaSource = this.mediaSource; if (!mediaSource || mediaSource.readyState !== 'open') { return; } if (!(sb.audio && sb.audio.updating || sb.video && sb.video.updating)) { _logger.logger.log('all media data available, signal endOfStream() to MediaSource and stop loading fragment'); //Notify the media element that it now has all of the media data mediaSource.endOfStream(); this._needsEos = false; } else { this._needsEos = true; } } }, { key: 'onBufferFlushing', value: function onBufferFlushing(data) { this.flushRange.push({ start: data.startOffset, end: data.endOffset }); // attempt flush immediatly this.flushBufferCounter = 0; this.doFlush(); } }, { key: 'doFlush', value: function doFlush() { // 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(); this.flushBufferCounter = 0; } else { this._needsFlush = true; // avoid looping, wait for SB update end to retrigger a flush return; } } if (this.flushRange.length === 0) { // everything flushed this._needsFlush = false; // let's recompute this.appended, which is used to avoid flush looping var appended = 0; var sourceBuffer = this.sourceBuffer; if (sourceBuffer) { for (var type in sourceBuffer) { appended += sourceBuffer[type].buffered.length; } } this.appended = appended; this.hls.trigger(_events2.default.BUFFER_FLUSHED); } } }, { key: 'doAppending', value: function doAppending() { var hls = this.hls, sourceBuffer = this.sourceBuffer, segments = this.segments; if (sourceBuffer) { if (this.media.error) { segments = []; _logger.logger.error('trying to append although a media error occured, flush segment and abort'); return; } for (var type in sourceBuffer) { if (sourceBuffer[type].updating) { //logger.log('sb update in progress'); return; } } if (segments.length) { var segment = segments.shift(); try { //logger.log(`appending ${segment.type} SB, size:${segment.data.length}); sourceBuffer[segment.type].appendBuffer(segment.data); this.appendError = 0; this.appended++; } catch (err) { // in case any error occured while appending, put back segment in segments table _logger.logger.error('error while trying to append buffer:' + err.message); segments.unshift(segment); var event = { type: _errors.ErrorTypes.MEDIA_ERROR }; if (err.code !== 22) { if (this.appendError) { this.appendError++; } else { this.appendError = 1; } event.details = _errors.ErrorDetails.BUFFER_APPEND_ERROR; event.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 > hls.config.appendErrorMaxRetry) { _logger.logger.log('fail ' + hls.config.appendErrorMaxRetry + ' times to append segment in sourceBuffer'); segments = []; event.fatal = true; hls.trigger(_events2.default.ERROR, event); return; } else { event.fatal = false; hls.trigger(_events2.default.ERROR, event); } } else { // QuotaExceededError: http://www.w3.org/TR/html5/infrastructure.html#quotaexceedederror // let's stop appending any segments, and report BUFFER_FULL_ERROR error segments = []; event.details = _errors.ErrorDetails.BUFFER_FULL_ERROR; hls.trigger(_events2.default.ERROR, event); } } } } } /* flush specified buffered range, return true once range has been flushed. as sourceBuffer.remove() is asynchronous, flushBuffer will be retriggered on sourceBuffer update end */ }, { 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 : don't try to flush more than the nb of appended segments if (this.flushBufferCounter < this.appended && 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 (Math.min(flushEnd, bufEnd) - flushStart > 0.5) { this.flushBufferCounter++; _logger.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(); _logger.logger.warn('cannot flush, sb updating in progress'); return false; } } } else { _logger.logger.warn('abort flushing too many retries'); } _logger.logger.log('buffer flushed'); // everything flushed ! return true; } }]); return BufferController; }(_eventHandler2.default); exports.default = BufferController; },{"../errors":20,"../event-handler":21,"../events":22,"../utils/logger":36}],5:[function(require,module,exports){ 'use strict'; 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; }; }(); Object.defineProperty(exports, "__esModule", { value: true }); var _events = require('../events'); var _events2 = _interopRequireDefault(_events); var _eventHandler = require('../event-handler'); var _eventHandler2 = _interopRequireDefault(_eventHandler); 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"); } } function _possibleConstructorReturn(self, call) { if (!self) { throw new ReferenceError("this hasn't been initialised - super() hasn't been called"); } return call && (typeof call === "object" || typeof call === "function") ? call : self; } function _inherits(subClass, superClass) { if (typeof superClass !== "function" && superClass !== null) { throw new TypeError("Super expression must either be null or a function, not " + typeof superClass); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, enumerable: false, writable: true, configurable: true } }); if (superClass) Object.setPrototypeOf ? Object.setPrototypeOf(subClass, superClass) : subClass.__proto__ = superClass; } /* * cap stream level to media size dimension controller */ var CapLevelController = function (_EventHandler) { _inherits(CapLevelController, _EventHandler); function CapLevelController(hls) { _classCallCheck(this, CapLevelController); return _possibleConstructorReturn(this, Object.getPrototypeOf(CapLevelController).call(this, hls, _events2.default.MEDIA_ATTACHING, _events2.default.MANIFEST_PARSED)); } _createClass(CapLevelController, [{ key: 'destroy', value: function destroy() { if (this.hls.config.capLevelToPlayerSize) { this.media = null; this.autoLevelCapping = Number.POSITIVE_INFINITY; if (this.timer) { this.timer = clearInterval(this.timer); } } } }, { key: 'onMediaAttaching', value: function onMediaAttaching(data) { this.media = data.media instanceof HTMLVideoElement ? data.media : null; } }, { key: 'onManifestParsed', value: function onManifestParsed(data) { if (this.hls.config.capLevelToPlayerSize) { this.autoLevelCapping = Number.POSITIVE_INFINITY; this.levels = data.levels; this.hls.firstLevel = this.getMaxLevel(data.firstLevel); clearInterval(this.timer); this.timer = setInterval(this.detectPlayerSize.bind(this), 1000); this.detectPlayerSize(); } } }, { key: 'detectPlayerSize', value: function detectPlayerSize() { if (this.media) { var levelsLength = this.levels ? this.levels.length : 0; if (levelsLength) { this.hls.autoLevelCapping = this.getMaxLevel(levelsLength - 1); if (this.hls.autoLevelCapping > this.autoLevelCapping) { // if auto level capping has a higher value for the previous one, flush the buffer using nextLevelSwitch // usually happen when the user go to the fullscreen mode. this.hls.streamController.nextLevelSwitch(); } this.autoLevelCapping = this.hls.autoLevelCapping; } } } /* * returns level should be the one with the dimensions equal or greater than the media (player) dimensions (so the video will be downscaled) */ }, { key: 'getMaxLevel', value: function getMaxLevel(capLevelIndex) { var result = undefined, i = undefined, level = undefined, mWidth = this.mediaWidth, mHeight = this.mediaHeight, lWidth = 0, lHeight = 0; for (i = 0; i <= capLevelIndex; i++) { level = this.levels[i]; result = i; lWidth = level.width; lHeight = level.height; if (mWidth <= lWidth || mHeight <= lHeight) { break; } } return result; } }, { key: 'contentScaleFactor', get: function get() { var pixelRatio = 1; try { pixelRatio = window.devicePixelRatio; } catch (e) {} return pixelRatio; } }, { key: 'mediaWidth', get: function get() { var width = undefined; if (this.media) { width = this.media.width || this.media.clientWidth || this.media.offsetWidth; width *= this.contentScaleFactor; } return width; } }, { key: 'mediaHeight', get: function get() { var height = undefined; if (this.media) { height = this.media.height || this.media.clientHeight || this.media.offsetHeight; height *= this.contentScaleFactor; } return height; } }]); return CapLevelController; }(_eventHandler2.default); exports.default = CapLevelController; },{"../event-handler":21,"../events":22}],6:[function(require,module,exports){ 'use strict'; 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; }; }(); Object.defineProperty(exports, "__esModule", { value: true }); var _events = require('../events'); var _events2 = _interopRequireDefault(_events); var _eventHandler = require('../event-handler'); var _eventHandler2 = _interopRequireDefault(_eventHandler); var _logger = require('../utils/logger'); var _errors = require('../errors'); 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"); } } function _possibleConstructorReturn(self, call) { if (!self) { throw new ReferenceError("this hasn't been initialised - super() hasn't been called"); } return call && (typeof call === "object" || typeof call === "function") ? call : self; } function _inherits(subClass, superClass) { if (typeof superClass !== "function" && superClass !== null) { throw new TypeError("Super expression must either be null or a function, not " + typeof superClass); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, enumerable: false, writable: true, configurable: true } }); if (superClass) Object.setPrototypeOf ? Object.setPrototypeOf(subClass, superClass) : subClass.__proto__ = superClass; } /* * Level Controller */ var LevelController = function (_EventHandler) { _inherits(LevelController, _EventHandler); function LevelController(hls) { _classCallCheck(this, LevelController); var _this = _possibleConstructorReturn(this, Object.getPrototypeOf(LevelController).call(this, hls, _events2.default.MANIFEST_LOADED, _events2.default.LEVEL_LOADED, _events2.default.ERROR)); _this.ontick = _this.tick.bind(_this); _this._manualLevel = _this._autoLevelCapping = -1; return _this; } _createClass(LevelController, [{ key: 'destroy', value: function destroy() { if (this.timer) { clearInterval(this.timer); } this._manualLevel = -1; } }, { key: 'startLoad', value: function startLoad() { this.canload = true; // speed up live playlist refresh if timer exists if (this.timer) { this.tick(); } } }, { key: 'stopLoad', value: function stopLoad() { this.canload = false; } }, { key: 'onManifestLoaded', value: function onManifestLoaded(data) { var levels0 = [], levels = [], bitrateStart, i, bitrateSet = {}, videoCodecFound = false, audioCodecFound = false, hls = this.hls; // 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] = levels0.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; } // only keep level with supported audio/video codecs levels = levels.filter(function (level) { var checkSupportedAudio = function checkSupportedAudio(codec) { return MediaSource.isTypeSupported('audio/mp4;codecs=' + codec); }; var checkSupportedVideo = function checkSupportedVideo(codec) { return MediaSource.isTypeSupported('video/mp4;codecs=' + codec); }; var audioCodec = level.audioCodec, videoCodec = level.videoCodec; return (!audioCodec || checkSupportedAudio(audioCodec)) && (!videoCodec || checkSupportedVideo(videoCodec)); }); if (levels.length) { // 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; _logger.logger.log('manifest loaded,' + levels.length + ' level(s) found, first bitrate:' + bitrateStart); break; } } hls.trigger(_events2.default.MANIFEST_PARSED, { levels: this._levels, firstLevel: this._firstLevel, stats: data.stats }); } else { hls.trigger(_events2.default.ERROR, { type: _errors.ErrorTypes.MEDIA_ERROR, details: _errors.ErrorDetails.MANIFEST_INCOMPATIBLE_CODECS_ERROR, fatal: true, url: hls.url, reason: 'no level with compatible codecs found in manifest' }); } 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; _logger.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 _logger.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(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 ... * don't raise FRAG_LOAD_ERROR and FRAG_LOAD_TIMEOUT as fatal, as it is handled by mediaController */ if (levelId !== undefined) { level = this._levels[levelId]; if (level.urlId < level.url.length - 1) { level.urlId++; level.details = undefined; _logger.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) { _logger.logger.warn('level controller,' + details + ': emergency switch-down for next fragment'); hls.abrController.nextAutoLevel = 0; } else if (level && level.details && level.details.live) { _logger.logger.warn('level controller,' + details + ' on live stream, discard'); // FRAG_LOAD_ERROR and FRAG_LOAD_TIMEOUT are handled by mediaController } else if (details !== _errors.ErrorDetails.FRAG_LOAD_ERROR && details !== _errors.ErrorDetails.FRAG_LOAD_TIMEOUT) { _logger.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(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 && this.canload) { var level = this._levels[levelId], urlId = level.urlId; this.hls.trigger(_events2.default.LEVEL_LOADING, { url: level.url[urlId], level: levelId, id: urlId }); } } }, { 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; } }, { key: 'nextLoadLevel', get: function get() { if (this._manualLevel !== -1) { return this._manualLevel; } else { return this.hls.abrController.nextAutoLevel; } }, set: function set(nextLevel) { this.level = nextLevel; if (this._manualLevel === -1) { this.hls.abrController.nextAutoLevel = nextLevel; } } }]); return LevelController; }(_eventHandler2.default); exports.default = LevelController; },{"../errors":20,"../event-handler":21,"../events":22,"../utils/logger":36}],7:[function(require,module,exports){ 'use strict'; 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; }; }(); Object.defineProperty(exports, "__esModule", { value: true }); var _demuxer = require('../demux/demuxer'); var _demuxer2 = _interopRequireDefault(_demuxer); var _events = require('../events'); var _events2 = _interopRequireDefault(_events); var _eventHandler = require('../event-handler'); var _eventHandler2 = _interopRequireDefault(_eventHandler); var _logger = require('../utils/logger'); var _binarySearch = require('../utils/binary-search'); var _binarySearch2 = _interopRequireDefault(_binarySearch); var _bufferHelper = require('../helper/buffer-helper'); var _bufferHelper2 = _interopRequireDefault(_bufferHelper); var _levelHelper = require('../helper/level-helper'); var _levelHelper2 = _interopRequireDefault(_levelHelper); var _errors = require('../errors'); 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"); } } function _possibleConstructorReturn(self, call) { if (!self) { throw new ReferenceError("this hasn't been initialised - super() hasn't been called"); } return call && (typeof call === "object" || typeof call === "function") ? call : self; } function _inherits(subClass, superClass) { if (typeof superClass !== "function" && superClass !== null) { throw new TypeError("Super expression must either be null or a function, not " + typeof superClass); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, enumerable: false, writable: true, configurable: true } }); if (superClass) Object.setPrototypeOf ? Object.setPrototypeOf(subClass, superClass) : subClass.__proto__ = superClass; } /* * Stream Controller */ var State = { STOPPED: 'STOPPED', STARTING: 'STARTING', IDLE: 'IDLE', PAUSED: 'PAUSED', KEY_LOADING: 'KEY_LOADING', FRAG_LOADING: 'FRAG_LOADING', FRAG_LOADING_WAITING_RETRY: 'FRAG_LOADING_WAITING_RETRY', WAITING_LEVEL: 'WAITING_LEVEL', PARSING: 'PARSING', PARSED: 'PARSED', ENDED: 'ENDED', ERROR: 'ERROR' }; var StreamController = function (_EventHandler) { _inherits(StreamController, _EventHandler); function StreamController(hls) { _classCallCheck(this, StreamController); var _this = _possibleConstructorReturn(this, Object.getPrototypeOf(StreamController).call(this, hls, _events2.default.MEDIA_ATTACHED, _events2.default.MEDIA_DETACHING, _events2.default.MANIFEST_LOADING, _events2.default.MANIFEST_PARSED, _events2.default.LEVEL_LOADED, _events2.default.KEY_LOADED, _events2.default.FRAG_LOADED, _events2.default.FRAG_LOAD_EMERGENCY_ABORTED, _events2.default.FRAG_PARSING_INIT_SEGMENT, _events2.default.FRAG_PARSING_DATA, _events2.default.FRAG_PARSED, _events2.default.ERROR, _events2.default.BUFFER_APPENDED, _events2.default.BUFFER_FLUSHED)); _this.config = hls.config; _this.audioCodecSwap = false; _this.ticks = 0; _this.ontick = _this.tick.bind(_this); return _this; } _createClass(StreamController, [{ key: 'destroy', value: function destroy() { this.stopLoad(); if (this.timer) { clearInterval(this.timer); this.timer = null; } _eventHandler2.default.prototype.destroy.call(this); this.state = State.STOPPED; } }, { key: 'startLoad', value: function startLoad() { var startPosition = arguments.length <= 0 || arguments[0] === undefined ? 0 : arguments[0]; if (this.levels) { var media = this.media, lastCurrentTime = this.lastCurrentTime; this.stopLoad(); this.demuxer = new _demuxer2.default(this.hls); if (!this.timer) { this.timer = setInterval(this.ontick, 100); } this.level = -1; this.fragLoadError = 0; if (media && lastCurrentTime) { _logger.logger.log('configure startPosition @' + lastCurrentTime); if (!this.lastPaused) { _logger.logger.log('resuming video'); media.play(); } this.state = State.IDLE; } else { this.lastCurrentTime = this.startPosition ? this.startPosition : startPosition; this.state = State.STARTING; } this.nextLoadPosition = this.startPosition = this.lastCurrentTime; this.tick(); } else { _logger.logger.warn('cannot start loading as manifest not parsed yet'); this.state = State.STOPPED; } } }, { key: 'stopLoad', value: function stopLoad() { var frag = this.fragCurrent; if (frag) { if (frag.loader) { frag.loader.abort(); } this.fragCurrent = null; } this.fragPrevious = null; if (this.demuxer) { this.demuxer.destroy(); this.demuxer = null; } this.state = State.STOPPED; } }, { key: 'tick', value: function tick() { this.ticks++; if (this.ticks === 1) { this.doTick(); if (this.ticks > 1) { setTimeout(this.tick, 1); } this.ticks = 0; } } }, { key: 'doTick', value: function doTick() { var _this2 = this; var pos, level, levelDetails, hls = this.hls, config = hls.config; //logger.log(this.state); switch (this.state) { case State.ERROR: //don't do anything in error state to avoid breaking further ... case State.PAUSED: //don't do anything in paused state either ... 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 not attached AND // start fragment already requested OR start frag prefetch disable // exit loop // => if media not attached but start frag prefetch is enabled and start frag not requested yet, we will not exit loop if (!this.media && (this.startFragRequested || !config.startFragPrefetch)) { 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.startFragRequested === false) { level = this.startLevel; } else { // we are not at playback start, get next load level from level Controller level = hls.nextLoadLevel; } var bufferInfo = _bufferHelper2.default.bufferInfo(this.media, pos, config.maxBufferHole), 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 * config.maxBufferSize / this.levels[level].bitrate, config.maxBufferLength); maxBufLen = Math.min(maxBufLen, config.maxMaxBufferLength); } else { maxBufLen = 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 live playlist, ensure that new playlist has been refreshed to avoid loading/try to load // a useless and outdated fragment (that might even introduce load error if it is already out of the live playlist) if (typeof levelDetails === 'undefined' || levelDetails.live && this.levelLastLoaded !== level) { 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}`); var maxLatency = config.liveMaxLatencyDuration !== undefined ? config.liveMaxLatencyDuration : config.liveMaxLatencyDurationCount * levelDetails.targetduration; if (bufferEnd < Math.max(start, end - maxLatency)) { var targetLatency = config.liveSyncDuration !== undefined ? config.liveSyncDuration : config.liveSyncDurationCount * levelDetails.targetduration; this.seekAfterBuffered = start + Math.max(0, levelDetails.totalduration - targetLatency); _logger.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.startFragRequested && !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]; _logger.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.min(fragLen - 1, Math.round(fragLen / 2))]; _logger.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) { (function () { var foundFrag = undefined; var maxFragLookUpTolerance = config.maxFragLookUpTolerance; if (bufferEnd < end) { if (bufferEnd > end - maxFragLookUpTolerance) { maxFragLookUpTolerance = 0; } foundFrag = _binarySearch2.default.search(fragments, function (candidate) { // offset should be within fragment boundary - config.maxFragLookUpTolerance // this is to cope with situations like // bufferEnd = 9.991 // frag[Ø] : [0,10] // frag[1] : [10,20] // bufferEnd is within frag[0] range ... although what we are expecting is to return frag[1] here // frag start frag start+duration // |-----------------------------| // <---> <---> // ...--------><-----------------------------><---------.... // previous frag matching fragment next frag // return -1 return 0 return 1 //logger.log(`level/sn/start/end/bufEnd:${level}/${candidate.sn}/${candidate.start}/${(candidate.start+candidate.duration)}/${bufferEnd}`); if (candidate.start + candidate.duration - maxFragLookUpTolerance <= bufferEnd) { return 1; } else if (candidate.start - maxFragLookUpTolerance > bufferEnd) { return -1; } return 0; }); } else { // reach end of playlist foundFrag = fragments[fragLen - 1]; } 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]; _logger.logger.log('SN just loaded, load next one: ' + frag.sn); } else { // have we reached end of VOD playlist ? if (!levelDetails.live) { _this2.hls.trigger(_events2.default.BUFFER_EOS); _this2.state = State.ENDED; } 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) { _logger.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 { _logger.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 = 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.startFragRequested = 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_WAITING_RETRY: var now = performance.now(); var retryDate = this.retryDate; var media = this.media; var isSeeking = media && media.seeking; // if current time is gt than retryDate, or if media seeking let's switch to IDLE state to retry loading if (!retryDate || now >= retryDate || isSeeking) { _logger.logger.log('mediaController: retryDate reached, switch back to IDLE state'); this.state = State.IDLE; } break; case State.STOPPED: case State.FRAG_LOADING: case State.PARSING: case State.PARSED: case State.ENDED: break; default: break; } // check buffer this._checkBuffer(); // check/update current fragment this._checkFragmentChanged(); } }, { key: 'getBufferRange', value: function getBufferRange(position) { var i, range, bufferRange = this.bufferRange; if (bufferRange) { for (i = bufferRange.length - 1; i >= 0; i--) { range = 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 }); } } } } /* on immediate level switch : - pause playback if playing - cancel any pending load request - and trigger a buffer flush */ }, { key: 'immediateLevelSwitch', value: function immediateLevelSwitch() { _logger.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.hls.trigger(_events2.default.BUFFER_FLUSHING, { startOffset: 0, endOffset: Number.POSITIVE_INFINITY }); this.state = State.PAUSED; // 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 && currentRange.start > 1) { // 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.hls.trigger(_events2.default.BUFFER_FLUSHING, { startOffset: 0, endOffset: currentRange.start - 1 }); this.state = State.PAUSED; } 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.hls.trigger(_events2.default.BUFFER_FLUSHING, { startOffset: nextRange.start, endOffset: Number.POSITIVE_INFINITY }); this.state = State.PAUSED; // 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; // increase fragment load Index to avoid frag loop loading error after buffer flush this.fragLoadIdx += 2 * this.config.fragLoadingLoopThreshold; } } } }, { key: 'onMediaAttached', value: function onMediaAttached(data) { var media = this.media = data.media; this.onvseeking = this.onMediaSeeking.bind(this); this.onvseeked = this.onMediaSeeked.bind(this); this.onvended = this.onMediaEnded.bind(this); media.addEventListener('seeking', this.onvseeking); media.addEventListener('seeked', this.onvseeked); media.addEventListener('ended', this.onvended); if (this.levels && this.config.autoStartLoad) { this.hls.startLoad(); } } }, { key: 'onMediaDetaching', value: function onMediaDetaching() { var media = this.media; if (media && media.ended) { _logger.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; }); } }); } // remove video listeners if (media) { media.removeEventListener('seeking', this.onvseeking); media.removeEventListener('seeked', this.onvseeked); media.removeEventListener('ended', this.onvended); this.onvseeking = this.onvseeked = this.onvended = null; } this.media = null; this.loadedmetadata = false; this.stopLoad(); } }, { 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 (_bufferHelper2.default.bufferInfo(this.media, this.media.currentTime, this.config.maxBufferHole).len === 0) { _logger.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; } } else if (this.state === State.ENDED) { // switch to IDLE state to check for potential 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: 'onMediaEnded', value: function onMediaEnded() { _logger.logger.log('media ended'); // reset startPosition and lastCurrentTime to restart playback @ stream beginning this.startPosition = this.lastCurrentTime = 0; } }, { key: 'onManifestLoading', value: function onManifestLoading() { // reset buffer on manifest loading _logger.logger.log('trigger BUFFER_RESET'); this.hls.trigger(_events2.default.BUFFER_RESET); this.bufferRange = []; this.stalled = false; } }, { key: 'onManifestParsed', value: function onManifestParsed(data) { var aac = false, heaac = false, codec; data.levels.forEach(function (level) { // detect if we have different kind of audio codecs used amongst playlists codec = level.audioCodec; if (codec) { if (codec.indexOf('mp4a.40.2') !== -1) { aac = true; } if (codec.indexOf('mp4a.40.5') !== -1) { heaac = true; } } }); this.audioCodecSwitch = aac && heaac; if (this.audioCodecSwitch) { _logger.logger.log('both AAC/HE-AAC audio found in levels; declaring level codec as HE-AAC'); } this.levels = data.levels; this.startLevelLoaded = false; this.startFragRequested = false; if (this.config.autoStartLoad) { this.hls.startLoad(); } } }, { key: 'onLevelLoaded', value: function onLevelLoaded(data) { var newDetails = data.details, newLevelId = data.level, curLevel = this.levels[newLevelId], duration = newDetails.totalduration, sliding = 0; _logger.logger.log('level ' + newLevelId + ' loaded [' + newDetails.startSN + ',' + newDetails.endSN + '],duration:' + duration); this.levelLastLoaded = newLevelId; if (newDetails.live) { var curDetails = curLevel.details; if (curDetails) { // we already have details for that level, merge them _levelHelper2.default.mergeDetails(curDetails, newDetails); sliding = newDetails.fragments[0].start; if (newDetails.PTSKnown) { _logger.logger.log('live playlist sliding:' + sliding.toFixed(3)); } else { _logger.logger.log('live playlist - outdated PTS, unknown sliding'); } } else { newDetails.PTSKnown = false; _logger.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.startFragRequested === false) { // if live playlist, set start position to be fragment N-this.config.liveSyncDurationCount (usually 3) if (newDetails.live) { var targetLatency = this.config.liveSyncDuration !== undefined ? this.config.liveSyncDuration : this.config.liveSyncDurationCount * newDetails.targetduration; this.startPosition = Math.max(0, sliding + duration - targetLatency); } this.nextLoadPosition = this.startPosition; } // 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(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, audioCodec = currentLevel.audioCodec || this.config.defaultAudioCodec; if (this.audioCodecSwap) { _logger.logger.log('swapping playlist audio codec'); if (audioCodec === undefined) { audioCodec = this.lastAudioCodec; } if (audioCodec) { if (audioCodec.indexOf('mp4a.40.5') !== -1) { audioCodec = 'mp4a.40.2'; } else { audioCodec = 'mp4a.40.5'; } } } this.pendingAppending = 0; _logger.logger.log('Demuxing ' + sn + ' of [' + details.startSN + ' ,' + details.endSN + '],level ' + level); this.demuxer.push(data.payload, audioCodec, currentLevel.videoCodec, start, fragCurrent.cc, level, sn, duration, fragCurrent.decryptdata); } } this.fragLoadError = 0; } }, { key: 'onFragParsingInitSegment', value: function onFragParsingInitSegment(data) { if (this.state === State.PARSING) { var tracks = data.tracks, trackName, track; // include levelCodec in audio and video tracks track = tracks.audio; if (track) { var audioCodec = this.levels[this.level].audioCodec, ua = navigator.userAgent.toLowerCase(); if (audioCodec && this.audioCodecSwap) { _logger.logger.log('swapping playlist audio codec'); if (audioCodec.indexOf('mp4a.40.5') !== -1) { audioCodec = 'mp4a.40.2'; } else { audioCodec = 'mp4a.40.5'; } } // in case AAC and HE-AAC audio codecs are signalled in manifest // force HE-AAC , as it seems that most browsers prefers that way, // except for mono streams OR on FF // these conditions might need to be reviewed ... if (this.audioCodecSwitch) { // don't force HE-AAC if mono stream if (track.metadata.channelCount !== 1 && // don't force HE-AAC if firefox ua.indexOf('firefox') === -1) { audioCodec = 'mp4a.40.5'; } } // HE-AAC is broken on Android, always signal audio codec as AAC even if variant manifest states otherwise if (ua.indexOf('android') !== -1) { audioCodec = 'mp4a.40.2'; _logger.logger.log('Android: force audio codec to' + audioCodec); } track.levelCodec = audioCodec; } track = tracks.video; if (track) { track.levelCodec = this.levels[this.level].videoCodec; } // if remuxer specify that a unique track needs to generated, // let's merge all tracks together if (data.unique) { var mergedTrack = { codec: '', levelCodec: '' }; for (trackName in data.tracks) { track = tracks[trackName]; mergedTrack.container = track.container; if (mergedTrack.codec) { mergedTrack.codec += ','; mergedTrack.levelCodec += ','; } if (track.codec) { mergedTrack.codec += track.codec; } if (track.levelCodec) { mergedTrack.levelCodec += track.levelCodec; } } tracks = { audiovideo: mergedTrack }; } this.hls.trigger(_events2.default.BUFFER_CODECS, tracks); // loop through tracks that are going to be provided to bufferController for (trackName in tracks) { track = tracks[trackName]; _logger.logger.log('track:' + trackName + ',container:' + track.container + ',codecs[level/parsed]=[' + track.levelCodec + '/' + track.codec + ']'); var initSegment = track.initSegment; if (initSegment) { this.pendingAppending++; this.hls.trigger(_events2.default.BUFFER_APPENDING, { type: trackName, data: initSegment }); } } //trigger handler right now this.tick(); } } }, { key: 'onFragParsingData', value: function onFragParsingData(data) { var _this3 = this; if (this.state === State.PARSING) { this.tparse2 = Date.now(); var level = this.levels[this.level], frag = this.fragCurrent; _logger.logger.log('parsed ' + data.type + ',PTS:[' + data.startPTS.toFixed(3) + ',' + data.endPTS.toFixed(3) + '],DTS:[' + data.startDTS.toFixed(3) + '/' + data.endDTS.toFixed(3) + '],nb:' + data.nb); var drift = _levelHelper2.default.updateFragPTS(level.details, frag.sn, data.startPTS, data.endPTS), hls = this.hls; hls.trigger(_events2.default.LEVEL_PTS_UPDATED, { details: level.details, level: this.level, drift: drift }); [data.data1, data.data2].forEach(function (buffer) { if (buffer) { _this3.pendingAppending++; hls.trigger(_events2.default.BUFFER_APPENDING, { type: data.type, data: buffer }); } }); 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 { _logger.logger.warn('not in PARSING state but ' + this.state + ', ignoring FRAG_PARSING_DATA event'); } } }, { key: 'onFragParsed', value: function onFragParsed() { if (this.state === State.PARSING) { this.stats.tparsed = performance.now(); this.state = State.PARSED; this._checkAppendedParsed(); } } }, { key: 'onBufferAppended', value: function onBufferAppended() { switch (this.state) { case State.PARSING: case State.PARSED: this.pendingAppending--; this._checkAppendedParsed(); break; default: break; } } }, { key: '_checkAppendedParsed', value: function _checkAppendedParsed() { //trigger handler right now if (this.state === State.PARSED && this.pendingAppending === 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 }); _logger.logger.log('media buffered : ' + this.timeRangesToString(this.media.buffered)); this.state = State.IDLE; } this.tick(); } } }, { key: 'onError', value: function onError(data) { switch (data.details) { case _errors.ErrorDetails.FRAG_LOAD_ERROR: case _errors.ErrorDetails.FRAG_LOAD_TIMEOUT: if (!data.fatal) { var loadError = this.fragLoadError; if (loadError) { loadError++; } else { loadError = 1; } if (loadError <= this.config.fragLoadingMaxRetry) { this.fragLoadError = loadError; // reset load counter to avoid frag loop loading error data.frag.loadCounter = 0; // exponential backoff capped to 64s var delay = Math.min(Math.pow(2, loadError - 1) * this.config.fragLoadingRetryDelay, 64000); _logger.logger.warn('mediaController: frag loading failed, retry in ' + delay + ' ms'); this.retryDate = performance.now() + delay; // retry loading state this.state = State.FRAG_LOADING_WAITING_RETRY; } else { _logger.logger.error('mediaController: ' + data.details + ' reaches max retry, redispatch as fatal ...'); // redispatch same error but with fatal set to true data.fatal = true; this.hls.trigger(_events2.default.ERROR, data); this.state = State.ERROR; } } break; 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 _logger.logger.warn('mediaController: ' + data.details + ' while loading frag,switch to ' + (data.fatal ? 'ERROR' : 'IDLE') + ' state ...'); this.state = data.fatal ? State.ERROR : State.IDLE; break; case _errors.ErrorDetails.BUFFER_FULL_ERROR: // trigger a smooth level switch to empty buffers // also reduce max buffer length as it might be too high. we do this to avoid loop flushing ... this.config.maxMaxBufferLength /= 2; _logger.logger.warn('reduce max buffer length to ' + this.config.maxMaxBufferLength + 's and trigger a nextLevelSwitch to flush old buffer and fix QuotaExceededError'); this.nextLevelSwitch(); break; default: break; } } }, { key: '_checkBuffer', value: function _checkBuffer() { var media = this.media; if (media) { // compare readyState var readyState = media.readyState; // if ready state different from HAVE_NOTHING (numeric value 0), we are allowed to seek if (readyState) { var targetSeekPosition, currentTime; // if seek after buffered defined, let's seek if within acceptable range var seekAfterBuffered = this.seekAfterBuffered; if (seekAfterBuffered) { if (media.duration >= seekAfterBuffered) { targetSeekPosition = seekAfterBuffered; this.seekAfterBuffered = undefined; } } else { currentTime = media.currentTime; var loadedmetadata = this.loadedmetadata; // adjust currentTime to start position on loaded metadata if (!loadedmetadata && media.buffered.length) { this.loadedmetadata = true; // only adjust currentTime if not equal to 0 if (!currentTime && currentTime !== this.startPosition) { targetSeekPosition = this.startPosition; } } } if (targetSeekPosition) { currentTime = targetSeekPosition; _logger.logger.log('target seek position:' + targetSeekPosition); } var bufferInfo = _bufferHelper2.default.bufferInfo(media, currentTime, 0), expectedPlaying = !(media.paused || media.ended || media.seeking || readyState < 2), jumpThreshold = 0.4, // tolerance needed as some browsers stalls playback before reaching buffered range end playheadMoving = currentTime > media.playbackRate * this.lastCurrentTime; if (this.stalled && playheadMoving) { this.stalled = false; _logger.logger.log('playback not stuck anymore @' + currentTime); } // check buffer upfront // if less than 200ms is buffered, and media is expected to play but playhead is not moving, // and we have a new buffer range available upfront, let's seek to that one if (bufferInfo.len <= jumpThreshold) { if (playheadMoving || !expectedPlaying) { // playhead moving or media not playing jumpThreshold = 0; this.seekHoleNudgeDuration = 0; } else { // playhead not moving AND media expected to play if (!this.stalled) { this.seekHoleNudgeDuration = 0; _logger.logger.log('playback seems stuck @' + currentTime); this.hls.trigger(_events2.default.ERROR, { type: _errors.ErrorTypes.MEDIA_ERROR, details: _errors.ErrorDetails.BUFFER_STALLED_ERROR, fatal: false }); this.stalled = true; } else { this.seekHoleNudgeDuration += this.config.seekHoleNudgeDuration; } } // if we are below threshold, try to jump if next buffer range is close if (bufferInfo.len <= jumpThreshold) { // no buffer available @ currentTime, check if next buffer is close (within a config.maxSeekHole second range) var nextBufferStart = bufferInfo.nextStart, delta = nextBufferStart - currentTime; if (nextBufferStart && delta < this.config.maxSeekHole && delta > 0 && !media.seeking) { // next buffer is close ! adjust currentTime to nextBufferStart // this will ensure effective video decoding _logger.logger.log('adjust currentTime from ' + media.currentTime + ' to next buffered @ ' + nextBufferStart + ' + nudge ' + this.seekHoleNudgeDuration); media.currentTime = nextBufferStart + this.seekHoleNudgeDuration; this.hls.trigger(_events2.default.ERROR, { type: _errors.ErrorTypes.MEDIA_ERROR, details: _errors.ErrorDetails.BUFFER_SEEK_OVER_HOLE, fatal: false }); } } } else { if (targetSeekPosition && media.currentTime !== targetSeekPosition) { _logger.logger.log('adjust currentTime from ' + media.currentTime + ' to ' + targetSeekPosition); media.currentTime = targetSeekPosition; } } } } } }, { key: 'onFragLoadEmergencyAborted', value: function onFragLoadEmergencyAborted() { this.state = State.IDLE; this.tick(); } }, { key: 'onBufferFlushed', value: function onBufferFlushed() { /* 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, i; 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; // 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; } }, { key: 'swapAudioCodec', value: function swapAudioCodec() { this.audioCodecSwap = !this.audioCodecSwap; } }, { 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: '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 StreamController; }(_eventHandler2.default); exports.default = StreamController; },{"../demux/demuxer":16,"../errors":20,"../event-handler":21,"../events":22,"../helper/buffer-helper":23,"../helper/level-helper":24,"../utils/binary-search":34,"../utils/logger":36}],8:[function(require,module,exports){ 'use strict'; 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; }; }(); Object.defineProperty(exports, "__esModule", { value: true }); var _events = require('../events'); var _events2 = _interopRequireDefault(_events); var _eventHandler = require('../event-handler'); var _eventHandler2 = _interopRequireDefault(_eventHandler); var _cea708Interpreter = require('../utils/cea-708-interpreter'); var _cea708Interpreter2 = _interopRequireDefault(_cea708Interpreter); 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"); } } function _possibleConstructorReturn(self, call) { if (!self) { throw new ReferenceError("this hasn't been initialised - super() hasn't been called"); } return call && (typeof call === "object" || typeof call === "function") ? call : self; } function _inherits(subClass, superClass) { if (typeof superClass !== "function" && superClass !== null) { throw new TypeError("Super expression must either be null or a function, not " + typeof superClass); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, enumerable: false, writable: true, configurable: true } }); if (superClass) Object.setPrototypeOf ? Object.setPrototypeOf(subClass, superClass) : subClass.__proto__ = superClass; } /* * Timeline Controller */ var TimelineController = function (_EventHandler) { _inherits(TimelineController, _EventHandler); function TimelineController(hls) { _classCallCheck(this, TimelineController); var _this = _possibleConstructorReturn(this, Object.getPrototypeOf(TimelineController).call(this, hls, _events2.default.MEDIA_ATTACHING, _events2.default.MEDIA_DETACHING, _events2.default.FRAG_PARSING_USERDATA, _events2.default.MANIFEST_LOADING, _events2.default.FRAG_LOADED)); _this.hls = hls; _this.config = hls.config; if (_this.config.enableCEA708Captions) { _this.cea708Interpreter = new _cea708Interpreter2.default(); } return _this; } _createClass(TimelineController, [{ key: 'destroy', value: function destroy() { _eventHandler2.default.prototype.destroy.call(this); } }, { key: 'onMediaAttaching', value: function onMediaAttaching(data) { var media = this.media = data.media; this.cea708Interpreter.attach(media); } }, { key: 'onMediaDetaching', value: function onMediaDetaching() { this.cea708Interpreter.detach(); } }, { key: 'onManifestLoading', value: function onManifestLoading() { this.lastPts = Number.POSITIVE_INFINITY; } }, { key: 'onFragLoaded', value: function onFragLoaded(data) { var pts = data.frag.start; //Number.POSITIVE_INFINITY; // if this is a frag for a previously loaded timerange, remove all captions // TODO: consider just removing captions for the timerange if (pts <= this.lastPts) { this.cea708Interpreter.clear(); } this.lastPts = pts; } }, { key: 'onFragParsingUserdata', value: function onFragParsingUserdata(data) { // push all of the CEA-708 messages into the interpreter // immediately. It will create the proper timestamps based on our PTS value for (var i = 0; i < data.samples.length; i++) { this.cea708Interpreter.push(data.samples[i].pts, data.samples[i].bytes); } } }]); return TimelineController; }(_eventHandler2.default); exports.default = TimelineController; },{"../event-handler":21,"../events":22,"../utils/cea-708-interpreter":35}],9:[function(require,module,exports){ 'use strict'; 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; }; }(); Object.defineProperty(exports, "__esModule", { value: true }); function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } } /* * * This file contains an adaptation of the AES decryption algorithm * from the Standford Javascript Cryptography Library. That work is * covered by the following copyright and permissions notice: * * Copyright 2009-2010 Emily Stark, Mike Hamburg, Dan Boneh. * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions are * met: * * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * * 2. Redistributions in binary form must reproduce the above * copyright notice, this list of conditions and the following * disclaimer in the documentation and/or other materials provided * with the distribution. * * THIS SOFTWARE IS PROVIDED BY THE AUTHORS ``AS IS'' AND ANY EXPRESS OR * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE * DISCLAIMED. IN NO EVENT SHALL OR CONTRIBUTORS BE * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN * IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. * * The views and conclusions contained in the software and documentation * are those of the authors and should not be interpreted as representing * official policies, either expressed or implied, of the authors. */ var AES = function () { /** * Schedule out an AES key for both encryption and decryption. This * is a low-level class. Use a cipher mode to do bulk encryption. * * @constructor * @param key {Array} The key as an array of 4, 6 or 8 words. */ function AES(key) { _classCallCheck(this, AES); /** * The expanded S-box and inverse S-box tables. These will be computed * on the client so that we don't have to send them down the wire. * * There are two tables, _tables[0] is for encryption and * _tables[1] is for decryption. * * The first 4 sub-tables are the expanded S-box with MixColumns. The * last (_tables[01][4]) is the S-box itself. * * @private */ this._tables = [[[], [], [], [], []], [[], [], [], [], []]]; this._precompute(); var i, j, tmp, encKey, decKey, sbox = this._tables[0][4], decTable = this._tables[1], keyLen = key.length, rcon = 1; if (keyLen !== 4 && keyLen !== 6 && keyLen !== 8) { throw new Error('Invalid aes key size=' + keyLen); } encKey = key.slice(0); decKey = []; this._key = [encKey, decKey]; // schedule encryption keys for (i = keyLen; i < 4 * keyLen + 28; i++) { tmp = encKey[i - 1]; // apply sbox if (i % keyLen === 0 || keyLen === 8 && i % keyLen === 4) { tmp = sbox[tmp >>> 24] << 24 ^ sbox[tmp >> 16 & 255] << 16 ^ sbox[tmp >> 8 & 255] << 8 ^ sbox[tmp & 255]; // shift rows and add rcon if (i % keyLen === 0) { tmp = tmp << 8 ^ tmp >>> 24 ^ rcon << 24; rcon = rcon << 1 ^ (rcon >> 7) * 283; } } encKey[i] = encKey[i - keyLen] ^ tmp; } // schedule decryption keys for (j = 0; i; j++, i--) { tmp = encKey[j & 3 ? i : i - 4]; if (i <= 4 || j < 4) { decKey[j] = tmp; } else { decKey[j] = decTable[0][sbox[tmp >>> 24]] ^ decTable[1][sbox[tmp >> 16 & 255]] ^ decTable[2][sbox[tmp >> 8 & 255]] ^ decTable[3][sbox[tmp & 255]]; } } } /** * Expand the S-box tables. * * @private */ _createClass(AES, [{ key: '_precompute', value: function _precompute() { var encTable = this._tables[0], decTable = this._tables[1], sbox = encTable[4], sboxInv = decTable[4], i, x, xInv, d = [], th = [], x2, x4, x8, s, tEnc, tDec; // Compute double and third tables for (i = 0; i < 256; i++) { th[(d[i] = i << 1 ^ (i >> 7) * 283) ^ i] = i; } for (x = xInv = 0; !sbox[x]; x ^= x2 || 1, xInv = th[xInv] || 1) { // Compute sbox s = xInv ^ xInv << 1 ^ xInv << 2 ^ xInv << 3 ^ xInv << 4; s = s >> 8 ^ s & 255 ^ 99; sbox[x] = s; sboxInv[s] = x; // Compute MixColumns x8 = d[x4 = d[x2 = d[x]]]; tDec = x8 * 0x1010101 ^ x4 * 0x10001 ^ x2 * 0x101 ^ x * 0x1010100; tEnc = d[s] * 0x101 ^ s * 0x1010100; for (i = 0; i < 4; i++) { encTable[i][x] = tEnc = tEnc << 24 ^ tEnc >>> 8; decTable[i][s] = tDec = tDec << 24 ^ tDec >>> 8; } } // Compactify. Considerable speedup on Firefox. for (i = 0; i < 5; i++) { encTable[i] = encTable[i].slice(0); decTable[i] = decTable[i].slice(0); } } /** * Decrypt 16 bytes, specified as four 32-bit words. * @param encrypted0 {number} the first word to decrypt * @param encrypted1 {number} the second word to decrypt * @param encrypted2 {number} the third word to decrypt * @param encrypted3 {number} the fourth word to decrypt * @param out {Int32Array} the array to write the decrypted words * into * @param offset {number} the offset into the output array to start * writing results * @return {Array} The plaintext. */ }, { key: 'decrypt', value: function decrypt(encrypted0, encrypted1, encrypted2, encrypted3, out, offset) { var key = this._key[1], // state variables a,b,c,d are loaded with pre-whitened data a = encrypted0 ^ key[0], b = encrypted3 ^ key[1], c = encrypted2 ^ key[2], d = encrypted1 ^ key[3], a2, b2, c2, nInnerRounds = key.length / 4 - 2, // key.length === 2 ? i, kIndex = 4, table = this._tables[1], // load up the tables table0 = table[0], table1 = table[1], table2 = table[2], table3 = table[3], sbox = table[4]; // Inner rounds. Cribbed from OpenSSL. for (i = 0; i < nInnerRounds; i++) { a2 = table0[a >>> 24] ^ table1[b >> 16 & 255] ^ table2[c >> 8 & 255] ^ table3[d & 255] ^ key[kIndex]; b2 = table0[b >>> 24] ^ table1[c >> 16 & 255] ^ table2[d >> 8 & 255] ^ table3[a & 255] ^ key[kIndex + 1]; c2 = table0[c >>> 24] ^ table1[d >> 16 & 255] ^ table2[a >> 8 & 255] ^ table3[b & 255] ^ key[kIndex + 2]; d = table0[d >>> 24] ^ table1[a >> 16 & 255] ^ table2[b >> 8 & 255] ^ table3[c & 255] ^ key[kIndex + 3]; kIndex += 4; a = a2;b = b2;c = c2; } // Last round. for (i = 0; i < 4; i++) { out[(3 & -i) + offset] = sbox[a >>> 24] << 24 ^ sbox[b >> 16 & 255] << 16 ^ sbox[c >> 8 & 255] << 8 ^ sbox[d & 255] ^ key[kIndex++]; a2 = a;a = b;b = c;c = d;d = a2; } } }]); return AES; }(); exports.default = AES; },{}],10:[function(require,module,exports){ 'use strict'; 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; }; }(); /* * * This file contains an adaptation of the AES decryption algorithm * from the Standford Javascript Cryptography Library. That work is * covered by the following copyright and permissions notice: * * Copyright 2009-2010 Emily Stark, Mike Hamburg, Dan Boneh. * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions are * met: * * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * * 2. Redistributions in binary form must reproduce the above * copyright notice, this list of conditions and the following * disclaimer in the documentation and/or other materials provided * with the distribution. * * THIS SOFTWARE IS PROVIDED BY THE AUTHORS ``AS IS'' AND ANY EXPRESS OR * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE * DISCLAIMED. IN NO EVENT SHALL OR CONTRIBUTORS BE * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN * IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. * * The views and conclusions contained in the software and documentation * are those of the authors and should not be interpreted as representing * official policies, either expressed or implied, of the authors. */ Object.defineProperty(exports, "__esModule", { value: true }); var _aes = require('./aes'); var _aes2 = _interopRequireDefault(_aes); 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 AES128Decrypter = function () { function AES128Decrypter(key, initVector) { _classCallCheck(this, AES128Decrypter); this.key = key; this.iv = initVector; } /** * Convert network-order (big-endian) bytes into their little-endian * representation. */ _createClass(AES128Decrypter, [{ key: 'ntoh', value: function ntoh(word) { return word << 24 | (word & 0xff00) << 8 | (word & 0xff0000) >> 8 | word >>> 24; } /** * Decrypt bytes using AES-128 with CBC and PKCS#7 padding. * @param encrypted {Uint8Array} the encrypted bytes * @param key {Uint32Array} the bytes of the decryption key * @param initVector {Uint32Array} the initialization vector (IV) to * use for the first round of CBC. * @return {Uint8Array} the decrypted bytes * * @see http://en.wikipedia.org/wiki/Advanced_Encryption_Standard * @see http://en.wikipedia.org/wiki/Block_cipher_mode_of_operation#Cipher_Block_Chaining_.28CBC.29 * @see https://tools.ietf.org/html/rfc2315 */ }, { key: 'doDecrypt', value: function doDecrypt(encrypted, key, initVector) { var // word-level access to the encrypted bytes encrypted32 = new Int32Array(encrypted.buffer, encrypted.byteOffset, encrypted.byteLength >> 2), decipher = new _aes2.default(Array.prototype.slice.call(key)), // byte and word-level access for the decrypted output decrypted = new Uint8Array(encrypted.byteLength), decrypted32 = new Int32Array(decrypted.buffer), // temporary variables for working with the IV, encrypted, and // decrypted data init0, init1, init2, init3, encrypted0, encrypted1, encrypted2, encrypted3, // iteration variable wordIx; // pull out the words of the IV to ensure we don't modify the // passed-in reference and easier access init0 = ~ ~initVector[0]; init1 = ~ ~initVector[1]; init2 = ~ ~initVector[2]; init3 = ~ ~initVector[3]; // decrypt four word sequences, applying cipher-block chaining (CBC) // to each decrypted block for (wordIx = 0; wordIx < encrypted32.length; wordIx += 4) { // convert big-endian (network order) words into little-endian // (javascript order) encrypted0 = ~ ~this.ntoh(encrypted32[wordIx]); encrypted1 = ~ ~this.ntoh(encrypted32[wordIx + 1]); encrypted2 = ~ ~this.ntoh(encrypted32[wordIx + 2]); encrypted3 = ~ ~this.ntoh(encrypted32[wordIx + 3]); // decrypt the block decipher.decrypt(encrypted0, encrypted1, encrypted2, encrypted3, decrypted32, wordIx); // XOR with the IV, and restore network byte-order to obtain the // plaintext decrypted32[wordIx] = this.ntoh(decrypted32[wordIx] ^ init0); decrypted32[wordIx + 1] = this.ntoh(decrypted32[wordIx + 1] ^ init1); decrypted32[wordIx + 2] = this.ntoh(decrypted32[wordIx + 2] ^ init2); decrypted32[wordIx + 3] = this.ntoh(decrypted32[wordIx + 3] ^ init3); // setup the IV for the next round init0 = encrypted0; init1 = encrypted1; init2 = encrypted2; init3 = encrypted3; } return decrypted; } }, { key: 'localDecrypt', value: function localDecrypt(encrypted, key, initVector, decrypted) { var bytes = this.doDecrypt(encrypted, key, initVector); decrypted.set(bytes, encrypted.byteOffset); } }, { key: 'decrypt', value: function decrypt(encrypted) { var step = 4 * 8000, //encrypted32 = new Int32Array(encrypted.buffer), encrypted32 = new Int32Array(encrypted), decrypted = new Uint8Array(encrypted.byteLength), i = 0; // split up the encryption job and do the individual chunks asynchronously var key = this.key; var initVector = this.iv; this.localDecrypt(encrypted32.subarray(i, i + step), key, initVector, decrypted); for (i = step; i < encrypted32.length; i += step) { initVector = new Uint32Array([this.ntoh(encrypted32[i - 4]), this.ntoh(encrypted32[i - 3]), this.ntoh(encrypted32[i - 2]), this.ntoh(encrypted32[i - 1])]); this.localDecrypt(encrypted32.subarray(i, i + step), key, initVector, decrypted); } return decrypted; } }]); return AES128Decrypter; }(); exports.default = AES128Decrypter; },{"./aes":9}],11:[function(require,module,exports){ 'use strict'; 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; }; }(); /* * AES128 decryption. */ Object.defineProperty(exports, "__esModule", { value: true }); var _aes128Decrypter = require('./aes128-decrypter'); var _aes128Decrypter2 = _interopRequireDefault(_aes128Decrypter); var _errors = require('../errors'); var _logger = require('../utils/logger'); 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 Decrypter = function () { function Decrypter(hls) { _classCallCheck(this, Decrypter); this.hls = hls; try { var browserCrypto = window ? window.crypto : crypto; this.subtle = browserCrypto.subtle || browserCrypto.webkitSubtle; this.disableWebCrypto = !this.subtle; } catch (e) { this.disableWebCrypto = true; } } _createClass(Decrypter, [{ key: 'destroy', value: function destroy() {} }, { key: 'decrypt', value: function decrypt(data, key, iv, callback) { if (this.disableWebCrypto && this.hls.config.enableSoftwareAES) { this.decryptBySoftware(data, key, iv, callback); } else { this.decryptByWebCrypto(data, key, iv, callback); } } }, { key: 'decryptByWebCrypto', value: function decryptByWebCrypto(data, key, iv, callback) { var _this = this; _logger.logger.log('decrypting by WebCrypto API'); this.subtle.importKey('raw', key, { name: 'AES-CBC', length: 128 }, false, ['decrypt']).then(function (importedKey) { _this.subtle.decrypt({ name: 'AES-CBC', iv: iv.buffer }, importedKey, data).then(callback).catch(function (err) { _this.onWebCryptoError(err, data, key, iv, callback); }); }).catch(function (err) { _this.onWebCryptoError(err, data, key, iv, callback); }); } }, { key: 'decryptBySoftware', value: function decryptBySoftware(data, key8, iv8, callback) { _logger.logger.log('decrypting by JavaScript Implementation'); var view = new DataView(key8.buffer); var key = new Uint32Array([view.getUint32(0), view.getUint32(4), view.getUint32(8), view.getUint32(12)]); view = new DataView(iv8.buffer); var iv = new Uint32Array([view.getUint32(0), view.getUint32(4), view.getUint32(8), view.getUint32(12)]); var decrypter = new _aes128Decrypter2.default(key, iv); callback(decrypter.decrypt(data).buffer); } }, { key: 'onWebCryptoError', value: function onWebCryptoError(err, data, key, iv, callback) { if (this.hls.config.enableSoftwareAES) { _logger.logger.log('disabling to use WebCrypto API'); this.disableWebCrypto = true; this.decryptBySoftware(data, key, iv, callback); } else { _logger.logger.error('decrypting error : ' + err.message); this.hls.trigger(Event.ERROR, { type: _errors.ErrorTypes.MEDIA_ERROR, details: _errors.ErrorDetails.FRAG_DECRYPT_ERROR, fatal: true, reason: err.message }); } } }]); return Decrypter; }(); exports.default = Decrypter; },{"../errors":20,"../utils/logger":36,"./aes128-decrypter":10}],12:[function(require,module,exports){ 'use strict'; 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; }; }(); /** * AAC demuxer */ Object.defineProperty(exports, "__esModule", { value: true }); var _adts = require('./adts'); var _adts2 = _interopRequireDefault(_adts); var _logger = require('../utils/logger'); var _id = require('../demux/id3'); var _id2 = _interopRequireDefault(_id); 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 AACDemuxer = function () { function AACDemuxer(observer, remuxerClass) { _classCallCheck(this, AACDemuxer); this.observer = observer; this.remuxerClass = remuxerClass; this.remuxer = new this.remuxerClass(observer); this._aacTrack = { container: 'audio/adts', type: 'audio', id: -1, sequenceNumber: 0, samples: [], len: 0 }; } _createClass(AACDemuxer, [{ key: 'push', // feed incoming data to the front of the parsing pipeline value: function push(data, audioCodec, videoCodec, timeOffset, cc, level, sn, duration) { var track = this._aacTrack, id3 = new _id2.default(data), pts = 90 * id3.timeStamp, config, frameLength, frameDuration, frameIndex, offset, headerLength, stamp, len, aacSample; // look for ADTS header (0xFFFx) for (offset = id3.length, len = data.length; offset < len - 1; offset++) { if (data[offset] === 0xff && (data[offset + 1] & 0xf0) === 0xf0) { break; } } if (!track.audiosamplerate) { config = _adts2.default.getAudioConfig(this.observer, data, offset, audioCodec); track.config = config.config; track.audiosamplerate = config.samplerate; track.channelCount = config.channelCount; track.codec = config.codec; track.duration = duration; _logger.logger.log('parsed codec:' + track.codec + ',rate:' + config.samplerate + ',nb channel:' + config.channelCount); } frameIndex = 0; frameDuration = 1024 * 90000 / track.audiosamplerate; while (offset + 5 < len) { // The protection skip bit tells us if we have 2 bytes of CRC data at the end of the ADTS header headerLength = !!(data[offset + 1] & 0x01) ? 7 : 9; // retrieve frame size frameLength = (data[offset + 3] & 0x03) << 11 | data[offset + 4] << 3 | (data[offset + 5] & 0xE0) >>> 5; frameLength -= headerLength; //stamp = pes.pts; if (frameLength > 0 && offset + headerLength + frameLength <= len) { stamp = pts + frameIndex * frameDuration; //logger.log(`AAC frame, offset/length/total/pts:${offset+headerLength}/${frameLength}/${data.byteLength}/${(stamp/90).toFixed(0)}`); aacSample = { unit: data.subarray(offset + headerLength, offset + headerLength + frameLength), pts: stamp, dts: stamp }; track.samples.push(aacSample); track.len += frameLength; offset += frameLength + headerLength; frameIndex++; // look for ADTS header (0xFFFx) for (; offset < len - 1; offset++) { if (data[offset] === 0xff && (data[offset + 1] & 0xf0) === 0xf0) { break; } } } else { break; } } this.remuxer.remux(this._aacTrack, { samples: [] }, { samples: [{ pts: pts, dts: pts, unit: id3.payload }] }, { samples: [] }, timeOffset); } }, { key: 'destroy', value: function destroy() {} }], [{ key: 'probe', value: function probe(data) { // check if data contains ID3 timestamp and ADTS sync worc var id3 = new _id2.default(data), offset, len; if (id3.hasTimeStamp) { // look for ADTS header (0xFFFx) for (offset = id3.length, len = data.length; offset < len - 1; offset++) { if (data[offset] === 0xff && (data[offset + 1] & 0xf0) === 0xf0) { //logger.log('ADTS sync word found !'); return true; } } } return false; } }]); return AACDemuxer; }(); exports.default = AACDemuxer; },{"../demux/id3":18,"../utils/logger":36,"./adts":13}],13:[function(require,module,exports){ 'use strict'; 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; }; }(); /** * ADTS parser helper */ Object.defineProperty(exports, "__esModule", { value: true }); var _logger = require('../utils/logger'); var _errors = require('../errors'); function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } } var ADTS = function () { function ADTS() { _classCallCheck(this, ADTS); } _createClass(ADTS, null, [{ key: 'getAudioConfig', value: function getAudioConfig(observer, 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) { observer.trigger(Event.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; _logger.logger.log('manifest codec:' + audioCodec + ',ADTS data:type:' + adtsObjectType + ',sampleingIndex:' + adtsSampleingIndex + '[' + adtsSampleingRates[adtsSampleingIndex] + 'Hz],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 HE-AACv2) OR (manifest codec not specified AND frequency less than 24kHz) if (audioCodec && (audioCodec.indexOf('mp4a.40.29') !== -1 || 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 AND nb channel is 1) OR (manifest codec not specified and mono audio) // Chrome fails to play back with low frequency AAC LC mono when initialized with HE-AAC. This is not a problem with stereo. if (audioCodec && audioCodec.indexOf('mp4a.40.2') !== -1 && adtsSampleingIndex >= 6 && adtsChanelConfig === 1 || !audioCodec && 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 }; } }]); return ADTS; }(); exports.default = ADTS; },{"../errors":20,"../utils/logger":36}],14:[function(require,module,exports){ 'use strict'; 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; }; }(); /* inline demuxer. * probe fragments and instantiate appropriate demuxer depending on content type (TSDemuxer, AACDemuxer, ...) */ Object.defineProperty(exports, "__esModule", { value: true }); var _events = require('../events'); var _events2 = _interopRequireDefault(_events); var _errors = require('../errors'); var _aacdemuxer = require('../demux/aacdemuxer'); var _aacdemuxer2 = _interopRequireDefault(_aacdemuxer); var _tsdemuxer = require('../demux/tsdemuxer'); var _tsdemuxer2 = _interopRequireDefault(_tsdemuxer); var _mp4Remuxer = require('../remux/mp4-remuxer'); var _mp4Remuxer2 = _interopRequireDefault(_mp4Remuxer); var _passthroughRemuxer = require('../remux/passthrough-remuxer'); var _passthroughRemuxer2 = _interopRequireDefault(_passthroughRemuxer); 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 DemuxerInline = function () { function DemuxerInline(hls, typeSupported) { _classCallCheck(this, DemuxerInline); this.hls = hls; this.typeSupported = typeSupported; } _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) { var hls = this.hls; // probe for content type if (_tsdemuxer2.default.probe(data)) { if (this.typeSupported.mp2t === true) { demuxer = new _tsdemuxer2.default(hls, _passthroughRemuxer2.default); } else { demuxer = new _tsdemuxer2.default(hls, _mp4Remuxer2.default); } } else if (_aacdemuxer2.default.probe(data)) { demuxer = new _aacdemuxer2.default(hls, _mp4Remuxer2.default); } else { 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; } this.demuxer = demuxer; } demuxer.push(data, audioCodec, videoCodec, timeOffset, cc, level, sn, duration); } }]); return DemuxerInline; }(); exports.default = DemuxerInline; },{"../demux/aacdemuxer":12,"../demux/tsdemuxer":19,"../errors":20,"../events":22,"../remux/mp4-remuxer":31,"../remux/passthrough-remuxer":32}],15:[function(require,module,exports){ 'use strict'; Object.defineProperty(exports, "__esModule", { value: true }); var _demuxerInline = require('../demux/demuxer-inline'); var _demuxerInline2 = _interopRequireDefault(_demuxerInline); var _events = require('../events'); var _events2 = _interopRequireDefault(_events); var _events3 = require('events'); var _events4 = _interopRequireDefault(_events3); function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; } 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) { var data = ev.data; //console.log('demuxer cmd:' + data.cmd); switch (data.cmd) { case 'init': self.demuxer = new _demuxerInline2.default(observer, data.typeSupported); break; case 'demux': 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 Demuxer observer.on(_events2.default.FRAG_PARSING_INIT_SEGMENT, function (ev, data) { self.postMessage({ event: ev, tracks: data.tracks, unique: data.unique }); }); 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, data1: data.data1.buffer, data2: data.data2.buffer, nb: data.nb }; // pass data1/data2 as transferable object (no copy) self.postMessage(objData, [objData.data1, objData.data2]); }); 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); }); observer.on(_events2.default.FRAG_PARSING_USERDATA, function (event, data) { var objData = { event: event, samples: data.samples }; self.postMessage(objData); }); }; /* 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. */ exports.default = DemuxerWorker; },{"../demux/demuxer-inline":14,"../events":22,"events":1}],16:[function(require,module,exports){ 'use strict'; 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; }; }(); Object.defineProperty(exports, "__esModule", { value: true }); var _events = require('../events'); var _events2 = _interopRequireDefault(_events); var _demuxerInline = require('../demux/demuxer-inline'); var _demuxerInline2 = _interopRequireDefault(_demuxerInline); var _demuxerWorker = require('../demux/demuxer-worker'); var _demuxerWorker2 = _interopRequireDefault(_demuxerWorker); var _logger = require('../utils/logger'); var _decrypter = require('../crypt/decrypter'); var _decrypter2 = _interopRequireDefault(_decrypter); 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 Demuxer = function () { function Demuxer(hls) { _classCallCheck(this, Demuxer); this.hls = hls; var typeSupported = { mp4: MediaSource.isTypeSupported('video/mp4'), mp2t: hls.config.enableMP2TPassThrough && MediaSource.isTypeSupported('video/mp2t') }; if (hls.config.enableWorker && typeof Worker !== 'undefined') { _logger.logger.log('demuxing in webworker'); try { var work = require('webworkify'); this.w = work(_demuxerWorker2.default); this.onwmsg = this.onWorkerMessage.bind(this); this.w.addEventListener('message', this.onwmsg); this.w.postMessage({ cmd: 'init', typeSupported: typeSupported }); } catch (err) { _logger.logger.error('error while initializing DemuxerWorker, fallback on DemuxerInline'); this.demuxer = new _demuxerInline2.default(hls, typeSupported); } } else { this.demuxer = new _demuxerInline2.default(hls, typeSupported); } 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(); this.demuxer = null; } if (this.decrypter) { this.decrypter.destroy(); this.decrypter = null; } } }, { 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') { if (this.decrypter == null) { this.decrypter = new _decrypter2.default(this.hls); } var localthis = this; this.decrypter.decrypt(data, decryptdata.key, decryptdata.iv, function (decryptedData) { localthis.pushDecrypted(decryptedData, audioCodec, videoCodec, timeOffset, cc, level, sn, duration); }); } else { this.pushDecrypted(data, audioCodec, videoCodec, timeOffset, cc, level, sn, duration); } } }, { key: 'onWorkerMessage', value: function onWorkerMessage(ev) { var data = ev.data; //console.log('onWorkerMessage:' + data.event); switch (data.event) { case _events2.default.FRAG_PARSING_INIT_SEGMENT: var obj = {}; obj.tracks = data.tracks; obj.unique = data.unique; 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, { data1: new Uint8Array(data.data1), data2: new Uint8Array(data.data2), startPTS: data.startPTS, endPTS: data.endPTS, startDTS: data.startDTS, endDTS: data.endDTS, type: data.type, nb: data.nb }); break; case _events2.default.FRAG_PARSING_METADATA: this.hls.trigger(_events2.default.FRAG_PARSING_METADATA, { samples: data.samples }); break; case _events2.default.FRAG_PARSING_USERDATA: this.hls.trigger(_events2.default.FRAG_PARSING_USERDATA, { samples: data.samples }); break; default: this.hls.trigger(data.event, data.data); break; } } }]); return Demuxer; }(); exports.default = Demuxer; },{"../crypt/decrypter":11,"../demux/demuxer-inline":14,"../demux/demuxer-worker":15,"../events":22,"../utils/logger":36,"webworkify":2}],17:[function(require,module,exports){ 'use strict'; 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; }; }(); /** * Parser for exponential Golomb codes, a variable-bitwidth number encoding scheme used by h264. */ Object.defineProperty(exports, "__esModule", { value: true }); var _logger = require('../utils/logger'); function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } } 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) { _logger.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); } // ():int }, { key: 'readUShort', value: function readUShort() { return this.readBits(16); } // ():int }, { key: 'readUInt', value: function readUInt() { return this.readBits(32); } /** * 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, sarScale = 1, 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 === 244 || profileIdc === 44 || profileIdc === 83 || profileIdc === 86 || profileIdc === 118 || profileIdc === 128) { 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(); } if (this.readBoolean()) { // vui_parameters_present_flag if (this.readBoolean()) { // aspect_ratio_info_present_flag var sarRatio = undefined; var aspectRatioIdc = this.readUByte(); switch (aspectRatioIdc) { case 1: sarRatio = [1, 1];break; case 2: sarRatio = [12, 11];break; case 3: sarRatio = [10, 11];break; case 4: sarRatio = [16, 11];break; case 5: sarRatio = [40, 33];break; case 6: sarRatio = [24, 11];break; case 7: sarRatio = [20, 11];break; case 8: sarRatio = [32, 11];break; case 9: sarRatio = [80, 33];break; case 10: sarRatio = [18, 11];break; case 11: sarRatio = [15, 11];break; case 12: sarRatio = [64, 33];break; case 13: sarRatio = [160, 99];break; case 14: sarRatio = [4, 3];break; case 15: sarRatio = [3, 2];break; case 16: sarRatio = [2, 1];break; case 255: { sarRatio = [this.readUByte() << 8 | this.readUByte(), this.readUByte() << 8 | this.readUByte()]; break; } } if (sarRatio) { sarScale = sarRatio[0] / sarRatio[1]; } } } return { width: Math.ceil(((picWidthInMbsMinus1 + 1) * 16 - frameCropLeftOffset * 2 - frameCropRightOffset * 2) * sarScale), height: (2 - frameMbsOnlyFlag) * (picHeightInMapUnitsMinus1 + 1) * 16 - (frameMbsOnlyFlag ? 2 : 4) * (frameCropTopOffset + frameCropBottomOffset) }; } }, { 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; },{"../utils/logger":36}],18:[function(require,module,exports){ 'use strict'; 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; }; }(); /** * ID3 parser */ Object.defineProperty(exports, "__esModule", { value: true }); var _logger = require('../utils/logger'); function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } } //import Hex from '../utils/hex'; var ID3 = function () { function ID3(data) { _classCallCheck(this, ID3); this._hasTimeStamp = false; var offset = 0, byte1, byte2, byte3, byte4, tagSize, endPos, header, len; do { header = this.readUTF(data, offset, 3); offset += 3; // first check for ID3 header if (header === 'ID3') { // skip 24 bits offset += 3; // retrieve tag(s) length byte1 = data[offset++] & 0x7f; byte2 = data[offset++] & 0x7f; byte3 = data[offset++] & 0x7f; byte4 = data[offset++] & 0x7f; tagSize = (byte1 << 21) + (byte2 << 14) + (byte3 << 7) + byte4; endPos = offset + tagSize; //logger.log(`ID3 tag found, size/end: ${tagSize}/${endPos}`); // read ID3 tags this._parseID3Frames(data, offset, endPos); offset = endPos; } else if (header === '3DI') { // http://id3.org/id3v2.4.0-structure chapter 3.4. ID3v2 footer offset += 7; _logger.logger.log('3DI footer found, end: ' + offset); } else { offset -= 3; len = offset; if (len) { //logger.log(`ID3 len: ${len}`); if (!this.hasTimeStamp) { _logger.logger.warn('ID3 tag found, but no timestamp'); } this._length = len; this._payload = data.subarray(0, len); } return; } } while (true); } _createClass(ID3, [{ key: 'readUTF', value: function readUTF(data, start, len) { var result = '', offset = start, end = start + len; do { result += String.fromCharCode(data[offset++]); } while (offset < end); return result; } }, { key: '_parseID3Frames', value: function _parseID3Frames(data, offset, endPos) { var tagId, tagLen, tagStart, tagFlags, timestamp; while (offset + 8 <= endPos) { tagId = this.readUTF(data, offset, 4); offset += 4; tagLen = data[offset++] << 24 + data[offset++] << 16 + data[offset++] << 8 + data[offset++]; tagFlags = data[offset++] << 8 + data[offset++]; tagStart = offset; //logger.log("ID3 tag id:" + tagId); switch (tagId) { case 'PRIV': //logger.log('parse frame:' + Hex.hexDump(data.subarray(offset,endPos))); // owner should be "com.apple.streaming.transportStreamTimestamp" if (this.readUTF(data, offset, 44) === 'com.apple.streaming.transportStreamTimestamp') { offset += 44; // smelling even better ! we found the right descriptor // skip null character (string end) + 3 first bytes offset += 4; // timestamp is 33 bit expressed as a big-endian eight-octet number, with the upper 31 bits set to zero. var pts33Bit = data[offset++] & 0x1; this._hasTimeStamp = true; timestamp = ((data[offset++] << 23) + (data[offset++] << 15) + (data[offset++] << 7) + data[offset++]) / 45; if (pts33Bit) { timestamp += 47721858.84; // 2^32 / 90 } timestamp = Math.round(timestamp); _logger.logger.trace('ID3 timestamp found: ' + timestamp); this._timeStamp = timestamp; } break; default: break; } } } }, { key: 'hasTimeStamp', get: function get() { return this._hasTimeStamp; } }, { key: 'timeStamp', get: function get() { return this._timeStamp; } }, { key: 'length', get: function get() { return this._length; } }, { key: 'payload', get: function get() { return this._payload; } }]); return ID3; }(); exports.default = ID3; },{"../utils/logger":36}],19:[function(require,module,exports){ 'use strict'; 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; }; }(); /** * 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. */ // import Hex from '../utils/hex'; Object.defineProperty(exports, "__esModule", { value: true }); var _adts = require('./adts'); var _adts2 = _interopRequireDefault(_adts); var _events = require('../events'); var _events2 = _interopRequireDefault(_events); var _expGolomb = require('./exp-golomb'); var _expGolomb2 = _interopRequireDefault(_expGolomb); var _logger = require('../utils/logger'); var _errors = require('../errors'); 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 TSDemuxer = function () { function TSDemuxer(observer, remuxerClass) { _classCallCheck(this, TSDemuxer); this.observer = observer; this.remuxerClass = remuxerClass; this.lastCC = 0; this.remuxer = new this.remuxerClass(observer); } _createClass(TSDemuxer, [{ key: 'switchLevel', value: function switchLevel() { this.pmtParsed = false; this._pmtId = -1; this.lastAacPTS = null; this.aacOverFlow = null; this._avcTrack = { container: 'video/mp2t', type: 'video', id: -1, sequenceNumber: 0, samples: [], len: 0, nbNalu: 0 }; this._aacTrack = { container: 'video/mp2t', type: 'audio', id: -1, sequenceNumber: 0, samples: [], len: 0 }; this._id3Track = { type: 'id3', id: -1, sequenceNumber: 0, samples: [], len: 0 }; this._txtTrack = { type: 'text', 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, codecsOnly = this.remuxer.passthrough; this.audioCodec = audioCodec; this.videoCodec = videoCodec; this.timeOffset = timeOffset; this._duration = duration; this.contiguous = false; if (cc !== this.lastCC) { _logger.logger.log('discontinuity detected'); this.insertDiscontinuity(); this.lastCC = cc; } else if (level !== this.lastLevel) { _logger.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; // don't parse last TS packet if incomplete len -= len % 188; // 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)); if (codecsOnly) { // if we have video codec info AND // if audio PID is undefined OR if we have audio codec info, // we have all codec info ! if (this._avcTrack.codec && (aacId === -1 || this._aacTrack.codec)) { this.remux(data); return; } } } 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)); if (codecsOnly) { // here we now that we have audio codec info // if video PID is undefined OR if we have video codec info, // we have all codec infos ! if (this._aacTrack.codec && (avcId === -1 || this._avcTrack.codec)) { this.remux(data); return; } } } 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(null); } }, { key: 'remux', value: function remux(data) { this.remuxer.remux(this._aacTrack, this._avcTrack, this._id3Track, this._txtTrack, this.timeOffset, this.contiguous, data); } }, { 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: _logger.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, data = stream.data; //retrieve PTS/DTS from first fragment frag = 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; stream.size -= payloadStartOffset; //reassemble PES packet pesData = new Uint8Array(stream.size); while (data.length) { frag = data.shift(); var len = frag.byteLength; if (payloadStartOffset) { if (payloadStartOffset > len) { // trim full frag if PES header bigger than frag payloadStartOffset -= len; continue; } else { // trim partial frag if PES header smaller than frag frag = frag.subarray(payloadStartOffset); len -= payloadStartOffset; payloadStartOffset = 0; } } pesData.set(frag, i); i += len; } 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, expGolombDecoder, avcSample, push, i; // 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; //SEI case 6: push = true; if (debug) { debugString += 'SEI '; } expGolombDecoder = new _expGolomb2.default(unit.data); // skip frameType expGolombDecoder.readUByte(); var payloadType = expGolombDecoder.readUByte(); // TODO: there can be more than one payload in an SEI packet... // TODO: need to read type and size in a while loop to get them all if (payloadType === 4) { var payloadSize = 0; do { payloadSize = expGolombDecoder.readUByte(); } while (payloadSize === 255); var countryCode = expGolombDecoder.readUByte(); if (countryCode === 181) { var providerCode = expGolombDecoder.readUShort(); if (providerCode === 49) { var userStructure = expGolombDecoder.readUInt(); if (userStructure === 0x47413934) { var userDataType = expGolombDecoder.readUByte(); // Raw CEA-608 bytes wrapped in CEA-708 packet if (userDataType === 3) { var firstByte = expGolombDecoder.readUByte(); var secondByte = expGolombDecoder.readUByte(); var totalCCs = 31 & firstByte; var byteArray = [firstByte, secondByte]; for (i = 0; i < totalCCs; i++) { // 3 bytes per CC byteArray.push(expGolombDecoder.readUByte()); byteArray.push(expGolombDecoder.readUByte()); byteArray.push(expGolombDecoder.readUByte()); } _this._txtTrack.samples.push({ type: 3, pts: pes.pts, bytes: byteArray }); } } } } } break; //SPS case 7: push = true; if (debug) { debugString += 'SPS '; } if (!track.sps) { expGolombDecoder = new _expGolomb2.default(unit.data); var config = expGolombDecoder.readSPS(); track.width = config.width; track.height = config.height; track.sps = [unit.data]; track.duration = _this._duration; var codecarray = unit.data.subarray(1, 4); var codecstring = 'avc1.'; for (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 = false; 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) { _logger.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 && i < len) { 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) { var track = this._avcTrack, samples = track.samples; //logger.log('first NALU found with overflow:' + overflow); if (samples.length) { var lastavcSample = samples[samples.length - 1], lastUnits = lastavcSample.units.units, lastUnit = lastUnits[lastUnits.length - 1], 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; track.len += overflow; } } } lastUnitStart = i; lastUnitType = unitType; 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, data = pes.data, pts = pes.pts, startOffset = 0, duration = this._duration, audioCodec = this.audioCodec, aacOverFlow = this.aacOverFlow, lastAacPTS = this.lastAacPTS, config, frameLength, frameDuration, frameIndex, offset, headerLength, stamp, len, aacSample; if (aacOverFlow) { var tmp = new Uint8Array(aacOverFlow.byteLength + data.byteLength); tmp.set(aacOverFlow, 0); tmp.set(data, aacOverFlow.byteLength); //logger.log(`AAC: append overflowing ${aacOverFlow.byteLength} bytes to beginning of new PES`); data = tmp; } // look for ADTS header (0xFFFx) for (offset = startOffset, len = data.length; offset < len - 1; offset++) { if (data[offset] === 0xff && (data[offset + 1] & 0xf0) === 0xf0) { break; } } // if ADTS header does not start straight from the beginning of the PES payload, raise an error if (offset) { var reason, fatal; if (offset < len - 1) { reason = 'AAC PES did not start with ADTS header,offset:' + offset; 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 = _adts2.default.getAudioConfig(this.observer, data, offset, audioCodec); track.config = config.config; track.audiosamplerate = config.samplerate; track.channelCount = config.channelCount; track.codec = config.codec; track.duration = duration; _logger.logger.log('parsed codec:' + track.codec + ',rate:' + config.samplerate + ',nb channel:' + config.channelCount); } frameIndex = 0; frameDuration = 1024 * 90000 / track.audiosamplerate; // if last AAC frame is overflowing, we should ensure timestamps are contiguous: // first sample PTS should be equal to last sample PTS + frameDuration if (aacOverFlow && lastAacPTS) { var newPTS = lastAacPTS + frameDuration; if (Math.abs(newPTS - pts) > 1) { _logger.logger.log('AAC: align PTS for overlapping frames by ' + Math.round((newPTS - pts) / 90)); pts = newPTS; } } while (offset + 5 < len) { // The protection skip bit tells us if we have 2 bytes of CRC data at the end of the ADTS header headerLength = !!(data[offset + 1] & 0x01) ? 7 : 9; // retrieve frame size frameLength = (data[offset + 3] & 0x03) << 11 | data[offset + 4] << 3 | (data[offset + 5] & 0xE0) >>> 5; frameLength -= headerLength; //stamp = pes.pts; if (frameLength > 0 && offset + headerLength + frameLength <= len) { stamp = pts + frameIndex * frameDuration; //logger.log(`AAC frame, offset/length/total/pts:${offset+headerLength}/${frameLength}/${data.byteLength}/${(stamp/90).toFixed(0)}`); aacSample = { unit: data.subarray(offset + headerLength, offset + headerLength + frameLength), pts: stamp, dts: stamp }; track.samples.push(aacSample); track.len += frameLength; offset += frameLength + headerLength; frameIndex++; // look for ADTS header (0xFFFx) for (; offset < len - 1; offset++) { if (data[offset] === 0xff && (data[offset + 1] & 0xf0) === 0xf0) { break; } } } else { break; } } if (offset < len) { aacOverFlow = data.subarray(offset, len); //logger.log(`AAC: overflow detected:${len-offset}`); } else { aacOverFlow = null; } this.aacOverFlow = aacOverFlow; this.lastAacPTS = stamp; } }, { 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; },{"../errors":20,"../events":22,"../utils/logger":36,"./adts":13,"./exp-golomb":17}],20:[function(require,module,exports){ 'use strict'; Object.defineProperty(exports, "__esModule", { value: true }); var ErrorTypes = exports.ErrorTypes = { // Identifier for a network error (loading error / timeout ...) NETWORK_ERROR: 'networkError', // Identifier for a media Error (video/parsing/mediasource error) MEDIA_ERROR: 'mediaError', // Identifier for all other errors OTHER_ERROR: 'otherError' }; var ErrorDetails = exports.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 a manifest with only incompatible codecs error - data: { url : faulty URL, reason : error reason} MANIFEST_INCOMPATIBLE_CODECS_ERROR: 'manifestIncompatibleCodecsError', // 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', // Identifier for a buffer stalled error event BUFFER_STALLED_ERROR: 'bufferStalledError', // Identifier for a buffer full event BUFFER_FULL_ERROR: 'bufferFullError', // Identifier for a buffer seek over hole event BUFFER_SEEK_OVER_HOLE: 'bufferSeekOverHole' }; },{}],21:[function(require,module,exports){ 'use strict'; var _typeof = typeof Symbol === "function" && typeof Symbol.iterator === "symbol" ? function (obj) { return typeof obj; } : function (obj) { return obj && typeof Symbol === "function" && obj.constructor === Symbol ? "symbol" : typeof obj; }; 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; }; }(); Object.defineProperty(exports, "__esModule", { value: true }); function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } } /* * * All objects in the event handling chain should inherit from this class * */ //import {logger} from './utils/logger'; var EventHandler = function () { function EventHandler(hls) { _classCallCheck(this, EventHandler); this.hls = hls; this.onEvent = this.onEvent.bind(this); for (var _len = arguments.length, events = Array(_len > 1 ? _len - 1 : 0), _key = 1; _key < _len; _key++) { events[_key - 1] = arguments[_key]; } this.handledEvents = events; this.useGenericHandler = true; this.registerListeners(); } _createClass(EventHandler, [{ key: 'destroy', value: function destroy() { this.unregisterListeners(); } }, { key: 'isEventHandler', value: function isEventHandler() { return _typeof(this.handledEvents) === 'object' && this.handledEvents.length && typeof this.onEvent === 'function'; } }, { key: 'registerListeners', value: function registerListeners() { if (this.isEventHandler()) { this.handledEvents.forEach(function (event) { if (event === 'hlsEventGeneric') { throw new Error('Forbidden event name: ' + event); } this.hls.on(event, this.onEvent); }.bind(this)); } } }, { key: 'unregisterListeners', value: function unregisterListeners() { if (this.isEventHandler()) { this.handledEvents.forEach(function (event) { this.hls.off(event, this.onEvent); }.bind(this)); } } /* * arguments: event (string), data (any) */ }, { key: 'onEvent', value: function onEvent(event, data) { this.onEventGeneric(event, data); } }, { key: 'onEventGeneric', value: function onEventGeneric(event, data) { var eventToFunction = function eventToFunction(event, data) { var funcName = 'on' + event.replace('hls', ''); if (typeof this[funcName] !== 'function') { throw new Error('Event ' + event + ' has no generic handler in this ' + this.constructor.name + ' class (tried ' + funcName + ')'); } return this[funcName].bind(this, data); }; eventToFunction.call(this, event, data).call(); } }]); return EventHandler; }(); exports.default = EventHandler; },{}],22:[function(require,module,exports){ 'use strict'; module.exports = { // 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 when we buffer is going to be resetted BUFFER_RESET: 'hlsBufferReset', // fired when we know about the codecs that we need buffers for to push into - data: {tracks : { container, codec, levelCodec, initSegment, metadata }} BUFFER_CODECS: 'hlsBufferCodecs', // fired when we append a segment to the buffer - data: { segment: segment object } BUFFER_APPENDING: 'hlsBufferAppending', // fired when we are done with appending a media segment to the buffer BUFFER_APPENDED: 'hlsBufferAppended', // fired when the stream is finished and we want to notify the media buffer that there will be no more data BUFFER_EOS: 'hlsBufferEos', // fired when the media buffer should be flushed - data {startOffset, endOffset} BUFFER_FLUSHING: 'hlsBufferFlushing', // fired when the media has been flushed BUFFER_FLUSHED: 'hlsBufferFlushed', // 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: 'hlsLevelPtsUpdated', // 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 sei text is completed - data: { samples : [ sei samples pes ] } FRAG_PARSING_USERDATA: 'hlsFragParsingUserdata', // fired when parsing id3 is completed - data: { samples : [ id3 samples pes ] } FRAG_PARSING_METADATA: 'hlsFragParsingMetadata', // fired when data have been extracted from fragment - data: { data1 : moof MP4 box or TS fragments, data2 : mdat MP4 box or null} 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 MEDIA_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' }; },{}],23:[function(require,module,exports){ "use strict"; 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; }; }(); Object.defineProperty(exports, "__esModule", { value: true }); function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } } /** * Buffer Helper class, providing methods dealing buffer length retrieval */ var BufferHelper = function () { function BufferHelper() { _classCallCheck(this, BufferHelper); } _createClass(BufferHelper, null, [{ key: "bufferInfo", value: function bufferInfo(media, pos, maxHoleDuration) { if (media) { var 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); } else { return { len: 0, start: 0, end: 0, nextStart: undefined }; } } }, { 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; break; } } return { len: bufferLen, start: bufferStart, end: bufferEnd, nextStart: bufferStartNext }; } }]); return BufferHelper; }(); exports.default = BufferHelper; },{}],24:[function(require,module,exports){ 'use strict'; 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; }; }(); /** * Level Helper class, providing methods dealing with playlist sliding and drift */ Object.defineProperty(exports, "__esModule", { value: true }); var _logger = require('../utils/logger'); function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } } 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) { _logger.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.min(startPTS, frag.startPTS); endPTS = Math.max(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) { _logger.logger.error('negative duration computed for frag ' + fragFrom.sn + ',level ' + fragFrom.level + ', there should be some duration drift between playlist and fragment!'); } } else { fragTo.duration = fragFrom.start - fragToPTS; if (fragTo.duration < 0) { _logger.logger.error('negative duration computed for frag ' + fragTo.sn + ',level ' + fragTo.level + ', 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; },{"../utils/logger":36}],25:[function(require,module,exports){ /** * HLS interface */ 'use strict'; 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; }; }(); //import FPSController from './controller/fps-controller'; Object.defineProperty(exports, "__esModule", { value: true }); var _events = require('./events'); var _events2 = _interopRequireDefault(_events); var _errors = require('./errors'); var _playlistLoader = require('./loader/playlist-loader'); var _playlistLoader2 = _interopRequireDefault(_playlistLoader); var _fragmentLoader = require('./loader/fragment-loader'); var _fragmentLoader2 = _interopRequireDefault(_fragmentLoader); var _abrController = require('./controller/abr-controller'); var _abrController2 = _interopRequireDefault(_abrController); var _bufferController = require('./controller/buffer-controller'); var _bufferController2 = _interopRequireDefault(_bufferController); var _capLevelController = require('./controller/cap-level-controller'); var _capLevelController2 = _interopRequireDefault(_capLevelController); var _streamController = require('./controller/stream-controller'); var _streamController2 = _interopRequireDefault(_streamController); var _levelController = require('./controller/level-controller'); var _levelController2 = _interopRequireDefault(_levelController); var _timelineController = require('./controller/timeline-controller'); var _timelineController2 = _interopRequireDefault(_timelineController); var _logger = require('./utils/logger'); var _xhrLoader = require('./utils/xhr-loader'); var _xhrLoader2 = _interopRequireDefault(_xhrLoader); var _events3 = require('events'); var _events4 = _interopRequireDefault(_events3); var _keyLoader = require('./loader/key-loader'); var _keyLoader2 = _interopRequireDefault(_keyLoader); 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 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; } }, { key: 'DefaultConfig', get: function get() { if (!Hls.defaultConfig) { Hls.defaultConfig = { autoStartLoad: true, debug: false, capLevelToPlayerSize: false, maxBufferLength: 30, maxBufferSize: 60 * 1000 * 1000, maxBufferHole: 0.5, maxSeekHole: 2, seekHoleNudgeDuration: 0.01, maxFragLookUpTolerance: 0.2, liveSyncDurationCount: 3, liveMaxLatencyDurationCount: Infinity, liveSyncDuration: undefined, liveMaxLatencyDuration: undefined, maxMaxBufferLength: 600, enableWorker: true, enableSoftwareAES: true, manifestLoadingTimeOut: 10000, manifestLoadingMaxRetry: 1, manifestLoadingRetryDelay: 1000, levelLoadingTimeOut: 10000, levelLoadingMaxRetry: 4, levelLoadingRetryDelay: 1000, fragLoadingTimeOut: 20000, fragLoadingMaxRetry: 6, fragLoadingRetryDelay: 1000, fragLoadingLoopThreshold: 3, startFragPrefetch: false, // fpsDroppedMonitoringPeriod: 5000, // fpsDroppedMonitoringThreshold: 0.2, appendErrorMaxRetry: 3, loader: _xhrLoader2.default, fLoader: undefined, pLoader: undefined, abrController: _abrController2.default, bufferController: _bufferController2.default, capLevelController: _capLevelController2.default, streamController: _streamController2.default, timelineController: _timelineController2.default, enableCEA708Captions: true, enableMP2TPassThrough: false }; } return Hls.defaultConfig; }, set: function set(defaultConfig) { Hls.defaultConfig = defaultConfig; } }]); function Hls() { var config = arguments.length <= 0 || arguments[0] === undefined ? {} : arguments[0]; _classCallCheck(this, Hls); var defaultConfig = Hls.DefaultConfig; if ((config.liveSyncDurationCount || config.liveMaxLatencyDurationCount) && (config.liveSyncDuration || config.liveMaxLatencyDuration)) { throw new Error('Illegal hls.js config: don\'t mix up liveSyncDurationCount/liveMaxLatencyDurationCount and liveSyncDuration/liveMaxLatencyDuration'); } for (var prop in defaultConfig) { if (prop in config) { continue; } config[prop] = defaultConfig[prop]; } if (config.liveMaxLatencyDurationCount !== undefined && config.liveMaxLatencyDurationCount <= config.liveSyncDurationCount) { throw new Error('Illegal hls.js config: "liveMaxLatencyDurationCount" must be gt "liveSyncDurationCount"'); } if (config.liveMaxLatencyDuration !== undefined && (config.liveMaxLatencyDuration <= config.liveSyncDuration || config.liveSyncDuration === undefined)) { throw new Error('Illegal hls.js config: "liveMaxLatencyDuration" must be gt "liveSyncDuration"'); } (0, _logger.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 _playlistLoader2.default(this); this.fragmentLoader = new _fragmentLoader2.default(this); this.levelController = new _levelController2.default(this); this.abrController = new config.abrController(this); this.bufferController = new config.bufferController(this); this.capLevelController = new config.capLevelController(this); this.streamController = new config.streamController(this); this.timelineController = new config.timelineController(this); this.keyLoader = new _keyLoader2.default(this); //this.fpsController = new FPSController(this); } _createClass(Hls, [{ key: 'destroy', value: function destroy() { _logger.logger.log('destroy'); this.trigger(_events2.default.DESTROYING); this.detachMedia(); this.playlistLoader.destroy(); this.fragmentLoader.destroy(); this.levelController.destroy(); this.bufferController.destroy(); this.capLevelController.destroy(); this.streamController.destroy(); this.timelineController.destroy(); this.keyLoader.destroy(); //this.fpsController.destroy(); this.url = null; this.observer.removeAllListeners(); } }, { key: 'attachMedia', value: function attachMedia(media) { _logger.logger.log('attachMedia'); this.media = media; this.trigger(_events2.default.MEDIA_ATTACHING, { media: media }); } }, { key: 'detachMedia', value: function detachMedia() { _logger.logger.log('detachMedia'); this.trigger(_events2.default.MEDIA_DETACHING); this.media = null; } }, { key: 'loadSource', value: function loadSource(url) { _logger.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() { var startPosition = arguments.length <= 0 || arguments[0] === undefined ? 0 : arguments[0]; _logger.logger.log('startLoad'); this.levelController.startLoad(); this.streamController.startLoad(startPosition); } }, { key: 'stopLoad', value: function stopLoad() { _logger.logger.log('stopLoad'); this.levelController.stopLoad(); this.streamController.stopLoad(); } }, { key: 'swapAudioCodec', value: function swapAudioCodec() { _logger.logger.log('swapAudioCodec'); this.streamController.swapAudioCodec(); } }, { key: 'recoverMediaError', value: function recoverMediaError() { _logger.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.streamController.currentLevel; } /* set quality level immediately (-1 for automatic level selection) */ , set: function set(newLevel) { _logger.logger.log('set currentLevel:' + newLevel); this.loadLevel = newLevel; this.streamController.immediateLevelSwitch(); } /** Return next playback quality level (quality level of next fragment) **/ }, { key: 'nextLevel', get: function get() { return this.streamController.nextLevel; } /* set quality level for next fragment (-1 for automatic level selection) */ , set: function set(newLevel) { _logger.logger.log('set nextLevel:' + newLevel); this.levelController.manualLevel = newLevel; this.streamController.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) { _logger.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.nextLoadLevel = 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) { _logger.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) { _logger.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) { _logger.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; },{"./controller/abr-controller":3,"./controller/buffer-controller":4,"./controller/cap-level-controller":5,"./controller/level-controller":6,"./controller/stream-controller":7,"./controller/timeline-controller":8,"./errors":20,"./events":22,"./loader/fragment-loader":27,"./loader/key-loader":28,"./loader/playlist-loader":29,"./utils/logger":36,"./utils/xhr-loader":38,"events":1}],26:[function(require,module,exports){ 'use strict'; // This is mostly for support of the es6 module export // syntax with the babel compiler, it looks like it doesnt support // function exports like we are used to in node/commonjs module.exports = require('./hls.js').default; },{"./hls.js":25}],27:[function(require,module,exports){ 'use strict'; 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; }; }(); Object.defineProperty(exports, "__esModule", { value: true }); var _events = require('../events'); var _events2 = _interopRequireDefault(_events); var _eventHandler = require('../event-handler'); var _eventHandler2 = _interopRequireDefault(_eventHandler); var _errors = require('../errors'); 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"); } } function _possibleConstructorReturn(self, call) { if (!self) { throw new ReferenceError("this hasn't been initialised - super() hasn't been called"); } return call && (typeof call === "object" || typeof call === "function") ? call : self; } function _inherits(subClass, superClass) { if (typeof superClass !== "function" && superClass !== null) { throw new TypeError("Super expression must either be null or a function, not " + typeof superClass); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, enumerable: false, writable: true, configurable: true } }); if (superClass) Object.setPrototypeOf ? Object.setPrototypeOf(subClass, superClass) : subClass.__proto__ = superClass; } /* * Fragment Loader */ var FragmentLoader = function (_EventHandler) { _inherits(FragmentLoader, _EventHandler); function FragmentLoader(hls) { _classCallCheck(this, FragmentLoader); return _possibleConstructorReturn(this, Object.getPrototypeOf(FragmentLoader).call(this, hls, _events2.default.FRAG_LOADING)); } _createClass(FragmentLoader, [{ key: 'destroy', value: function destroy() { if (this.loader) { this.loader.destroy(); this.loader = null; } _eventHandler2.default.prototype.destroy.call(this); } }, { key: 'onFragLoading', value: function onFragLoading(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, 1, 0, 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) { if (this.loader) { 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() { if (this.loader) { 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; }(_eventHandler2.default); exports.default = FragmentLoader; },{"../errors":20,"../event-handler":21,"../events":22}],28:[function(require,module,exports){ 'use strict'; 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; }; }(); Object.defineProperty(exports, "__esModule", { value: true }); var _events = require('../events'); var _events2 = _interopRequireDefault(_events); var _eventHandler = require('../event-handler'); var _eventHandler2 = _interopRequireDefault(_eventHandler); var _errors = require('../errors'); 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"); } } function _possibleConstructorReturn(self, call) { if (!self) { throw new ReferenceError("this hasn't been initialised - super() hasn't been called"); } return call && (typeof call === "object" || typeof call === "function") ? call : self; } function _inherits(subClass, superClass) { if (typeof superClass !== "function" && superClass !== null) { throw new TypeError("Super expression must either be null or a function, not " + typeof superClass); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, enumerable: false, writable: true, configurable: true } }); if (superClass) Object.setPrototypeOf ? Object.setPrototypeOf(subClass, superClass) : subClass.__proto__ = superClass; } /* * Decrypt key Loader */ var KeyLoader = function (_EventHandler) { _inherits(KeyLoader, _EventHandler); function KeyLoader(hls) { _classCallCheck(this, KeyLoader); var _this = _possibleConstructorReturn(this, Object.getPrototypeOf(KeyLoader).call(this, hls, _events2.default.KEY_LOADING)); _this.decryptkey = null; _this.decrypturl = null; return _this; } _createClass(KeyLoader, [{ key: 'destroy', value: function destroy() { if (this.loader) { this.loader.destroy(); this.loader = null; } _eventHandler2.default.prototype.destroy.call(this); } }, { key: 'onKeyLoading', value: function onKeyLoading(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) { if (this.loader) { 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() { if (this.loader) { 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; }(_eventHandler2.default); exports.default = KeyLoader; },{"../errors":20,"../event-handler":21,"../events":22}],29:[function(require,module,exports){ 'use strict'; 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; }; }(); Object.defineProperty(exports, "__esModule", { value: true }); var _events = require('../events'); var _events2 = _interopRequireDefault(_events); var _eventHandler = require('../event-handler'); var _eventHandler2 = _interopRequireDefault(_eventHandler); var _errors = require('../errors'); var _url = require('../utils/url'); var _url2 = _interopRequireDefault(_url); var _attrList = require('../utils/attr-list'); var _attrList2 = _interopRequireDefault(_attrList); 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"); } } function _possibleConstructorReturn(self, call) { if (!self) { throw new ReferenceError("this hasn't been initialised - super() hasn't been called"); } return call && (typeof call === "object" || typeof call === "function") ? call : self; } function _inherits(subClass, superClass) { if (typeof superClass !== "function" && superClass !== null) { throw new TypeError("Super expression must either be null or a function, not " + typeof superClass); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, enumerable: false, writable: true, configurable: true } }); if (superClass) Object.setPrototypeOf ? Object.setPrototypeOf(subClass, superClass) : subClass.__proto__ = superClass; } /** * Playlist Loader */ //import {logger} from '../utils/logger'; var PlaylistLoader = function (_EventHandler) { _inherits(PlaylistLoader, _EventHandler); function PlaylistLoader(hls) { _classCallCheck(this, PlaylistLoader); return _possibleConstructorReturn(this, Object.getPrototypeOf(PlaylistLoader).call(this, hls, _events2.default.MANIFEST_LOADING, _events2.default.LEVEL_LOADING)); } _createClass(PlaylistLoader, [{ key: 'destroy', value: function destroy() { if (this.loader) { this.loader.destroy(); this.loader = null; } this.url = this.id = null; _eventHandler2.default.prototype.destroy.call(this); } }, { key: 'onManifestLoading', value: function onManifestLoading(data) { this.load(data.url, null); } }, { key: 'onLevelLoading', value: function onLevelLoading(data) { this.load(data.url, data.level, data.id); } }, { key: 'load', value: function load(url, id1, id2) { var config = this.hls.config, retry, timeout, retryDelay; this.url = url; this.id = id1; this.id2 = id2; if (this.id === null) { retry = config.manifestLoadingMaxRetry; timeout = config.manifestLoadingTimeOut; retryDelay = config.manifestLoadingRetryDelay; } else { retry = config.levelLoadingMaxRetry; timeout = config.levelLoadingTimeOut; retryDelay = config.levelLoadingRetryDelay; } 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), timeout, retry, retryDelay); } }, { key: 'resolve', value: function resolve(url, baseUrl) { return _url2.default.buildAbsoluteURL(baseUrl, url); } }, { key: 'parseMasterPlaylist', value: function parseMasterPlaylist(string, baseurl) { var levels = [], result = undefined; // https://regex101.com is your friend var re = /#EXT-X-STREAM-INF:([^\n\r]*)[\r\n]+([^\r\n]+)/g; while ((result = re.exec(string)) != null) { var level = {}; var attrs = level.attrs = new _attrList2.default(result[1]); level.url = this.resolve(result[2], baseurl); var resolution = attrs.decimalResolution('RESOLUTION'); if (resolution) { level.width = resolution.width; level.height = resolution.height; } level.bitrate = attrs.decimalInteger('BANDWIDTH'); level.name = attrs.NAME; var codecs = attrs.CODECS; if (codecs) { codecs = codecs.split(','); for (var i = 0; i < codecs.length; i++) { var codec = codecs[i]; if (codec.indexOf('avc1') !== -1) { level.videoCodec = this.avc1toavcoti(codec); } else { level.audioCodec = codec; } } } levels.push(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 += ('000' + parseInt(avcdata.shift()).toString(16)).substr(-4); } else { result = codec; } return result; } }, { 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 }, levelkey = { method: null, key: null, iv: null, uri: null }, cc = 0, programDateTime = null, frag = null, result, regexp, byteRangeEndOffset, byteRangeStartOffset; 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))|(?:#EXT-X-(PROGRAM-DATE-TIME):(.*))/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; 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; } var url = result[2] ? this.resolve(result[2], baseurl) : null; frag = { url: url, duration: duration, start: totalduration, sn: sn, level: id, cc: cc, byteRangeStartOffset: byteRangeStartOffset, byteRangeEndOffset: byteRangeEndOffset, decryptdata: fragdecryptdata, programDateTime: programDateTime }; level.fragments.push(frag); totalduration += duration; byteRangeStartOffset = null; programDateTime = null; } break; case 'KEY': // https://tools.ietf.org/html/draft-pantos-http-live-streaming-08#section-3.4.4 var decryptparams = result[1]; var keyAttrs = new _attrList2.default(decryptparams); var decryptmethod = keyAttrs.enumeratedString('METHOD'), decrypturi = keyAttrs.URI, decryptiv = keyAttrs.hexadecimalInteger('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) levelkey.iv = decryptiv; } } break; case 'PROGRAM-DATE-TIME': programDateTime = new Date(Date.parse(result[1])); break; default: break; } } //logger.log('found ' + level.fragments.length + ' fragments'); if (frag && !frag.url) { level.fragments.pop(); totalduration -= frag.duration; } level.totalduration = totalduration; level.endSN = currentSN - 1; return level; } }, { key: 'loadsuccess', value: function loadsuccess(event, stats) { var target = event.currentTarget, string = target.responseText, url = target.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(target.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; } if (this.loader) { 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; } if (this.loader) { 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; }(_eventHandler2.default); exports.default = PlaylistLoader; },{"../errors":20,"../event-handler":21,"../events":22,"../utils/attr-list":33,"../utils/url":37}],30:[function(require,module,exports){ 'use strict'; 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; }; }(); Object.defineProperty(exports, "__esModule", { value: true }); function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } } /** * Generate MP4 Box */ //import Hex from '../utils/hex'; 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)]; } } var videoHdlr = 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' ]); var audioHdlr = 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': videoHdlr, 'audio': audioHdlr }; var 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 ]); var stco = new Uint8Array([0x00, // version 0x00, 0x00, 0x00, // flags 0x00, 0x00, 0x00, 0x00 // entry_count ]); MP4.STTS = MP4.STSC = MP4.STCO = 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 var majorBrand = new Uint8Array([105, 115, 111, 109]); // isom var avc1Brand = new Uint8Array([97, 118, 99, 49]); // avc1 var minorVersion = new Uint8Array([0, 0, 0, 1]); MP4.FTYP = MP4.box(MP4.types.ftyp, majorBrand, minorVersion, majorBrand, avc1Brand); MP4.DINF = MP4.box(MP4.types.dinf, MP4.box(MP4.types.dref, dref)); } }, { key: 'box', value: function box(type) { var payload = Array.prototype.slice.call(arguments, 1), size = 8, i = payload.length, len = i, result; // calculate the total size we need to allocate while (i--) { size += payload[i].byteLength; } result = new Uint8Array(size); result[0] = size >> 24 & 0xff; result[1] = size >> 16 & 0xff; result[2] = size >> 8 & 0xff; result[3] = size & 0xff; result.set(type, 4); // copy the payload into the result for (i = 0, size = 8; i < len; i++) { // copy payload[i] array @ offset size 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) { duration *= timescale; 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) { duration *= timescale; 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" width = track.width, height = track.height; //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 width >> 8 & 0xFF, width & 0xff, // width height >> 8 & 0xFF, height & 0xff, // height 0x00, 0x48, 0x00, 0x00, // horizresolution 0x00, 0x48, 0x00, 0x00, // vertresolution 0x00, 0x00, 0x00, 0x00, // reserved 0x00, 0x01, // frame_count 0x12, 0x64, 0x61, 0x69, 0x6C, //dailymotion/hls.js 0x79, 0x6D, 0x6F, 0x74, 0x69, 0x6F, 0x6E, 0x2F, 0x68, 0x6C, 0x73, 0x2E, 0x6A, 0x73, 0x00, 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) { var configlen = track.config.length; return new Uint8Array([0x00, // version 0 0x00, 0x00, 0x00, // flags 0x03, // descriptor_type 0x17 + configlen, // length 0x00, 0x01, //es_id 0x00, // stream_priority 0x04, // descriptor_type 0x0f + configlen, // 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([configlen]).concat(track.config).concat([0x06, 0x01, 0x02])); // GASpecificConfig)); // length + audio config descriptor } }, { key: 'mp4a', value: function mp4a(track) { var audiosamplerate = track.audiosamplerate; 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 audiosamplerate >> 8 & 0xFF, 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) { var id = track.id, duration = track.duration * track.timescale, width = track.width, height = track.height; 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 id >> 24 & 0xFF, id >> 16 & 0xFF, id >> 8 & 0xFF, id & 0xFF, // track_ID 0x00, 0x00, 0x00, 0x00, // reserved duration >> 24, duration >> 16 & 0xFF, duration >> 8 & 0xFF, 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 width >> 8 & 0xFF, width & 0xFF, 0x00, 0x00, // width height >> 8 & 0xFF, height & 0xFF, 0x00, 0x00 // height ])); } }, { key: 'traf', value: function traf(track, baseMediaDecodeTime) { var sampleDependencyTable = MP4.sdtp(track), id = track.id; return MP4.box(MP4.types.traf, MP4.box(MP4.types.tfhd, new Uint8Array([0x00, // version 0 0x00, 0x00, 0x00, // flags id >> 24, id >> 16 & 0XFF, id >> 8 & 0XFF, 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) { var id = track.id; return MP4.box(MP4.types.trex, new Uint8Array([0x00, // version 0 0x00, 0x00, 0x00, // flags id >> 24, id >> 16 & 0XFF, id >> 8 & 0XFF, 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 = track.samples || [], len = samples.length, arraylen = 12 + 16 * len, array = new Uint8Array(arraylen), i, sample, duration, size, flags, cts; offset += 8 + arraylen; array.set([0x00, // version 0 0x00, 0x0f, 0x01, // flags len >>> 24 & 0xFF, len >>> 16 & 0xFF, len >>> 8 & 0xFF, len & 0xFF, // sample_count offset >>> 24 & 0xFF, offset >>> 16 & 0xFF, offset >>> 8 & 0xFF, offset & 0xFF // data_offset ], 0); for (i = 0; i < len; i++) { sample = samples[i]; duration = sample.duration; size = sample.size; flags = sample.flags; cts = sample.cts; array.set([duration >>> 24 & 0xFF, duration >>> 16 & 0xFF, duration >>> 8 & 0xFF, duration & 0xFF, // sample_duration size >>> 24 & 0xFF, size >>> 16 & 0xFF, size >>> 8 & 0xFF, size & 0xFF, // sample_size flags.isLeading << 2 | flags.dependsOn, flags.isDependedOn << 6 | flags.hasRedundancy << 4 | flags.paddingValue << 1 | flags.isNonSync, flags.degradPrio & 0xF0 << 8, flags.degradPrio & 0x0F, // sample_flags cts >>> 24 & 0xFF, cts >>> 16 & 0xFF, cts >>> 8 & 0xFF, 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; },{}],31:[function(require,module,exports){ 'use strict'; 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; }; }(); /** * fMP4 remuxer */ Object.defineProperty(exports, "__esModule", { value: true }); var _events = require('../events'); var _events2 = _interopRequireDefault(_events); var _logger = require('../utils/logger'); var _mp4Generator = require('../remux/mp4-generator'); var _mp4Generator2 = _interopRequireDefault(_mp4Generator); var _errors = require('../errors'); 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 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, textTrack, timeOffset, contiguous) { // generate Init Segment if needed if (!this.ISGenerated) { this.generateIS(audioTrack, videoTrack, timeOffset); } if (this.ISGenerated) { //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); } //logger.log('nb ID3 samples:' + audioTrack.samples.length); if (textTrack.samples.length) { this.remuxText(textTrack, 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, pesTimeScale = this.PES_TIMESCALE, tracks = {}, data = { tracks: tracks, unique: false }, computePTSDTS = this._initPTS === undefined, initPTS, initDTS; if (computePTSDTS) { initPTS = initDTS = Infinity; } if (audioTrack.config && audioSamples.length) { audioTrack.timescale = audioTrack.audiosamplerate; // MP4 duration (track duration in seconds multiplied by timescale) is coded on 32 bits // we know that each AAC sample contains 1024 frames.... // in order to avoid overflowing the 32 bit counter for large duration, we use smaller timescale (timescale/gcd) // we just need to ensure that AAC sample duration will still be an integer (will be 1024/gcd) if (audioTrack.timescale * audioTrack.duration > Math.pow(2, 32)) { (function () { var greatestCommonDivisor = function greatestCommonDivisor(a, b) { if (!b) { return a; } return greatestCommonDivisor(b, a % b); }; audioTrack.timescale = audioTrack.audiosamplerate / greatestCommonDivisor(audioTrack.audiosamplerate, 1024); })(); } _logger.logger.log('audio mp4 timescale :' + audioTrack.timescale); tracks.audio = { container: 'audio/mp4', codec: audioTrack.codec, initSegment: _mp4Generator2.default.initSegment([audioTrack]), metadata: { channelCount: audioTrack.channelCount } }; if (computePTSDTS) { // remember first PTS of this demuxing context. for audio, PTS + DTS ... initPTS = initDTS = audioSamples[0].pts - pesTimeScale * timeOffset; } } if (videoTrack.sps && videoTrack.pps && videoSamples.length) { videoTrack.timescale = this.MP4_TIMESCALE; tracks.video = { container: 'video/mp4', codec: videoTrack.codec, initSegment: _mp4Generator2.default.initSegment([videoTrack]), metadata: { width: videoTrack.width, height: videoTrack.height } }; if (computePTSDTS) { initPTS = Math.min(initPTS, videoSamples[0].pts - pesTimeScale * timeOffset); initDTS = Math.min(initDTS, videoSamples[0].dts - pesTimeScale * timeOffset); } } if (Object.keys(tracks).length) { observer.trigger(_events2.default.FRAG_PARSING_INIT_SEGMENT, data); this.ISGenerated = true; if (computePTSDTS) { this._initPTS = initPTS; this._initDTS = initDTS; } } else { observer.trigger(_events2.default.ERROR, { type: _errors.ErrorTypes.MEDIA_ERROR, details: _errors.ErrorDetails.FRAG_PARSING_ERROR, fatal: false, reason: 'no audio/video samples found' }); } } }, { key: 'remuxVideo', value: function remuxVideo(track, timeOffset, contiguous) { var view, offset = 8, pesTimeScale = this.PES_TIMESCALE, pes2mp4ScaleFactor = this.PES2MP4SCALEFACTOR, avcSample, mp4Sample, mp4SampleLength, unit, mdat, moof, firstPTS, firstDTS, lastDTS, pts, dts, ptsnorm, dtsnorm, flags, 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(_mp4Generator2.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(offset, unit.data.byteLength); offset += 4; mdat.set(unit.data, offset); offset += unit.data.byteLength; mp4SampleLength += 4 + unit.data.byteLength; } pts = avcSample.pts - this._initDTS; dts = avcSample.dts - this._initDTS; // ensure DTS is not bigger than PTS dts = Math.min(pts, dts); //logger.log(`Video/PTS/DTS:${Math.round(pts/90)}/${Math.round(dts/90)}`); // 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); var sampleDuration = (dtsnorm - lastDTS) / pes2mp4ScaleFactor; if (sampleDuration <= 0) { _logger.logger.log('invalid sample duration at PTS/DTS: ' + avcSample.pts + '/' + avcSample.dts + ':' + sampleDuration); sampleDuration = 1; } mp4Sample.duration = sampleDuration; } else { var nextAvcDts = undefined, delta = undefined; if (contiguous) { nextAvcDts = this.nextAvcDts; } else { nextAvcDts = timeOffset * pesTimeScale; } // 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) { _logger.logger.log('AVC:' + delta + ' ms hole between fragments detected,filling it'); } else if (delta < -1) { _logger.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); _logger.logger.log('Video/PTS/DTS adjusted: ' + ptsnorm + '/' + dtsnorm + ',delta:' + delta); } } // 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 } }; flags = mp4Sample.flags; if (avcSample.key === true) { // the current sample is a key frame flags.dependsOn = 2; flags.isNonSync = 0; } else { flags.dependsOn = 1; flags.isNonSync = 1; } samples.push(mp4Sample); lastDTS = dtsnorm; } var lastSampleDuration = 0; if (samples.length >= 2) { lastSampleDuration = samples[samples.length - 2].duration; mp4Sample.duration = lastSampleDuration; } // next AVC sample DTS should be equal to last sample DTS + last sample duration this.nextAvcDts = dtsnorm + lastSampleDuration * pes2mp4ScaleFactor; track.len = 0; track.nbNalu = 0; if (samples.length && navigator.userAgent.toLowerCase().indexOf('chrome') > -1) { flags = samples[0].flags; // 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 flags.dependsOn = 2; flags.isNonSync = 0; } track.samples = samples; moof = _mp4Generator2.default.moof(track.sequenceNumber++, firstDTS / pes2mp4ScaleFactor, track); track.samples = []; this.observer.trigger(_events2.default.FRAG_PARSING_DATA, { data1: moof, data2: mdat, startPTS: firstPTS / pesTimeScale, endPTS: (ptsnorm + pes2mp4ScaleFactor * lastSampleDuration) / pesTimeScale, startDTS: firstDTS / pesTimeScale, endDTS: this.nextAvcDts / pesTimeScale, type: 'video', nb: samples.length }); } }, { key: 'remuxAudio', value: function remuxAudio(track, timeOffset, contiguous) { var view, offset = 8, pesTimeScale = this.PES_TIMESCALE, mp4timeScale = track.timescale, pes2mp4ScaleFactor = pesTimeScale / mp4timeScale, expectedSampleDuration = track.timescale * 1024 / track.audiosamplerate, aacSample, mp4Sample, unit, mdat, moof, firstPTS, firstDTS, lastDTS, pts, dts, ptsnorm, dtsnorm, samples = [], samples0 = []; track.samples.sort(function (a, b) { return a.pts - b.pts; }); samples0 = track.samples; while (samples0.length) { aacSample = samples0.shift(); unit = aacSample.unit; pts = aacSample.pts - this._initDTS; dts = aacSample.dts - this._initDTS; //logger.log(`Audio/PTS:${Math.round(pts/90)}`); // if not first sample if (lastDTS !== undefined) { ptsnorm = this._PTSNormalize(pts, lastDTS); dtsnorm = this._PTSNormalize(dts, lastDTS); // let's compute sample duration. // sample Duration should be close to expectedSampleDuration mp4Sample.duration = (dtsnorm - lastDTS) / pes2mp4ScaleFactor; if (Math.abs(mp4Sample.duration - expectedSampleDuration) > expectedSampleDuration / 10) { // more than 10% diff between sample duration and expectedSampleDuration .... lets log that _logger.logger.log('invalid AAC sample duration at PTS ' + Math.round(pts / 90) + ',should be 1024,found :' + Math.round(mp4Sample.duration * track.audiosamplerate / track.timescale)); } // always adjust sample duration to avoid av sync issue mp4Sample.duration = expectedSampleDuration; dtsnorm = expectedSampleDuration * pes2mp4ScaleFactor + lastDTS; } else { var nextAacPts = undefined, delta = undefined; if (contiguous) { nextAacPts = this.nextAacPts; } else { nextAacPts = timeOffset * pesTimeScale; } 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 > 0) { _logger.logger.log(delta + ' ms hole between AAC samples detected,filling it'); // if we have frame overlap, overlapping for more than half a frame duraion } else if (delta < -12) { // drop overlapping audio frames... browser will deal with it _logger.logger.log(-delta + ' ms overlapping between AAC samples detected, drop frame'); track.len -= unit.byteLength; continue; } // 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); if (track.len > 0) { /* 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(_mp4Generator2.default.types.mdat, 4); } else { // no audio samples return; } } mdat.set(unit, offset); offset += unit.byteLength; //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; } var lastSampleDuration = 0; var nbSamples = samples.length; //set last sample duration as being identical to previous sample if (nbSamples >= 2) { lastSampleDuration = samples[nbSamples - 2].duration; mp4Sample.duration = lastSampleDuration; } if (nbSamples) { // next aac sample PTS should be equal to last sample PTS + duration this.nextAacPts = ptsnorm + pes2mp4ScaleFactor * lastSampleDuration; //logger.log('Audio/PTS/PTSend:' + aacSample.pts.toFixed(0) + '/' + this.nextAacDts.toFixed(0)); track.len = 0; track.samples = samples; moof = _mp4Generator2.default.moof(track.sequenceNumber++, firstDTS / pes2mp4ScaleFactor, track); track.samples = []; this.observer.trigger(_events2.default.FRAG_PARSING_DATA, { data1: moof, data2: mdat, startPTS: firstPTS / pesTimeScale, endPTS: this.nextAacPts / pesTimeScale, startDTS: firstDTS / pesTimeScale, endDTS: (dtsnorm + pes2mp4ScaleFactor * lastSampleDuration) / pesTimeScale, type: 'audio', nb: nbSamples }); } } }, { 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: 'remuxText', value: function remuxText(track, timeOffset) { track.samples.sort(function (a, b) { return a.pts - b.pts; }); var length = track.samples.length, sample; // consume samples if (length) { for (var index = 0; index < length; index++) { sample = track.samples[index]; // setting text pts, dts to relative time // using this._initPTS and this._initDTS to calculate relative time sample.pts = (sample.pts - this._initPTS) / this.PES_TIMESCALE; } this.observer.trigger(_events2.default.FRAG_PARSING_USERDATA, { 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: 'passthrough', get: function get() { return false; } }]); return MP4Remuxer; }(); exports.default = MP4Remuxer; },{"../errors":20,"../events":22,"../remux/mp4-generator":30,"../utils/logger":36}],32:[function(require,module,exports){ 'use strict'; 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; }; }(); /** * passthrough remuxer */ Object.defineProperty(exports, "__esModule", { value: true }); var _events = require('../events'); var _events2 = _interopRequireDefault(_events); 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 PassThroughRemuxer = function () { function PassThroughRemuxer(observer) { _classCallCheck(this, PassThroughRemuxer); this.observer = observer; this.ISGenerated = false; } _createClass(PassThroughRemuxer, [{ key: 'destroy', value: function destroy() {} }, { key: 'insertDiscontinuity', value: function insertDiscontinuity() {} }, { key: 'switchLevel', value: function switchLevel() { this.ISGenerated = false; } }, { key: 'remux', value: function remux(audioTrack, videoTrack, id3Track, textTrack, timeOffset, rawData) { var observer = this.observer; // generate Init Segment if needed if (!this.ISGenerated) { var tracks = {}, data = { tracks: tracks, unique: true }, track = videoTrack, codec = track.codec; if (codec) { data.tracks.video = { container: track.container, codec: codec, metadata: { width: track.width, height: track.height } }; } track = audioTrack; codec = track.codec; if (codec) { data.tracks.audio = { container: track.container, codec: codec, metadata: { channelCount: track.channelCount } }; } this.ISGenerated = true; observer.trigger(_events2.default.FRAG_PARSING_INIT_SEGMENT, data); } observer.trigger(_events2.default.FRAG_PARSING_DATA, { data1: rawData, startPTS: timeOffset, startDTS: timeOffset, type: 'audiovideo', nb: 1 }); } }, { key: 'passthrough', get: function get() { return true; } }]); return PassThroughRemuxer; }(); exports.default = PassThroughRemuxer; },{"../events":22}],33:[function(require,module,exports){ 'use strict'; 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; }; }(); Object.defineProperty(exports, "__esModule", { value: true }); function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } } // adapted from https://github.com/kanongil/node-m3u8parse/blob/master/attrlist.js var AttrList = function () { function AttrList(attrs) { _classCallCheck(this, AttrList); if (typeof attrs === 'string') { attrs = AttrList.parseAttrList(attrs); } for (var attr in attrs) { if (attrs.hasOwnProperty(attr)) { this[attr] = attrs[attr]; } } } _createClass(AttrList, [{ key: 'decimalInteger', value: function decimalInteger(attrName) { var intValue = parseInt(this[attrName], 10); if (intValue > Number.MAX_SAFE_INTEGER) { return Infinity; } return intValue; } }, { key: 'hexadecimalInteger', value: function hexadecimalInteger(attrName) { if (this[attrName]) { var stringValue = (this[attrName] || '0x').slice(2); stringValue = (stringValue.length & 1 ? '0' : '') + stringValue; var value = new Uint8Array(stringValue.length / 2); for (var i = 0; i < stringValue.length / 2; i++) { value[i] = parseInt(stringValue.slice(i * 2, i * 2 + 2), 16); } return value; } else { return null; } } }, { key: 'hexadecimalIntegerAsNumber', value: function hexadecimalIntegerAsNumber(attrName) { var intValue = parseInt(this[attrName], 16); if (intValue > Number.MAX_SAFE_INTEGER) { return Infinity; } return intValue; } }, { key: 'decimalFloatingPoint', value: function decimalFloatingPoint(attrName) { return parseFloat(this[attrName]); } }, { key: 'enumeratedString', value: function enumeratedString(attrName) { return this[attrName]; } }, { key: 'decimalResolution', value: function decimalResolution(attrName) { var res = /^(\d+)x(\d+)$/.exec(this[attrName]); if (res === null) { return undefined; } return { width: parseInt(res[1], 10), height: parseInt(res[2], 10) }; } }], [{ key: 'parseAttrList', value: function parseAttrList(input) { var re = /\s*(.+?)\s*=((?:\".*?\")|.*?)(?:,|$)/g; var match, attrs = {}; while ((match = re.exec(input)) !== null) { var value = match[2], quote = '"'; if (value.indexOf(quote) === 0 && value.lastIndexOf(quote) === value.length - 1) { value = value.slice(1, -1); } attrs[match[1]] = value; } return attrs; } }]); return AttrList; }(); exports.default = AttrList; },{}],34:[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; },{}],35:[function(require,module,exports){ 'use strict'; 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; }; }(); Object.defineProperty(exports, "__esModule", { value: true }); function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } } /* * CEA-708 interpreter */ var CEA708Interpreter = function () { function CEA708Interpreter() { _classCallCheck(this, CEA708Interpreter); } _createClass(CEA708Interpreter, [{ key: 'attach', value: function attach(media) { this.media = media; this.display = []; this.memory = []; } }, { key: 'detach', value: function detach() { this.clear(); } }, { key: 'destroy', value: function destroy() {} }, { key: '_createCue', value: function _createCue() { var VTTCue = window.VTTCue || window.TextTrackCue; var cue = this.cue = new VTTCue(-1, -1, ''); cue.text = ''; cue.pauseOnExit = false; // make sure it doesn't show up before it's ready cue.startTime = Number.MAX_VALUE; // show it 'forever' once we do show it // (we'll set the end time once we know it later) cue.endTime = Number.MAX_VALUE; this.memory.push(cue); } }, { key: 'clear', value: function clear() { var textTrack = this._textTrack; if (textTrack && textTrack.cues) { while (textTrack.cues.length > 0) { textTrack.removeCue(textTrack.cues[0]); } } } }, { key: 'push', value: function push(timestamp, bytes) { if (!this.cue) { this._createCue(); } var count = bytes[0] & 31; var position = 2; var tmpByte, ccbyte1, ccbyte2, ccValid, ccType; for (var j = 0; j < count; j++) { tmpByte = bytes[position++]; ccbyte1 = 0x7F & bytes[position++]; ccbyte2 = 0x7F & bytes[position++]; ccValid = (4 & tmpByte) === 0 ? false : true; ccType = 3 & tmpByte; if (ccbyte1 === 0 && ccbyte2 === 0) { continue; } if (ccValid) { if (ccType === 0) // || ccType === 1 { // Standard Characters if (0x20 & ccbyte1 || 0x40 & ccbyte1) { this.cue.text += this._fromCharCode(ccbyte1) + this._fromCharCode(ccbyte2); } // Special Characters else if ((ccbyte1 === 0x11 || ccbyte1 === 0x19) && ccbyte2 >= 0x30 && ccbyte2 <= 0x3F) { // extended chars, e.g. musical note, accents switch (ccbyte2) { case 48: this.cue.text += '®'; break; case 49: this.cue.text += '°'; break; case 50: this.cue.text += '½'; break; case 51: this.cue.text += '¿'; break; case 52: this.cue.text += '™'; break; case 53: this.cue.text += '¢'; break; case 54: this.cue.text += ''; break; case 55: this.cue.text += '£'; break; case 56: this.cue.text += '♪'; break; case 57: this.cue.text += ' '; break; case 58: this.cue.text += 'è'; break; case 59: this.cue.text += 'â'; break; case 60: this.cue.text += 'ê'; break; case 61: this.cue.text += 'î'; break; case 62: this.cue.text += 'ô'; break; case 63: this.cue.text += 'û'; break; } } if ((ccbyte1 === 0x11 || ccbyte1 === 0x19) && ccbyte2 >= 0x20 && ccbyte2 <= 0x2F) { // Mid-row codes: color/underline switch (ccbyte2) { case 0x20: // White break; case 0x21: // White Underline break; case 0x22: // Green break; case 0x23: // Green Underline break; case 0x24: // Blue break; case 0x25: // Blue Underline break; case 0x26: // Cyan break; case 0x27: // Cyan Underline break; case 0x28: // Red break; case 0x29: // Red Underline break; case 0x2A: // Yellow break; case 0x2B: // Yellow Underline break; case 0x2C: // Magenta break; case 0x2D: // Magenta Underline break; case 0x2E: // Italics break; case 0x2F: // Italics Underline break; } } if ((ccbyte1 === 0x14 || ccbyte1 === 0x1C) && ccbyte2 >= 0x20 && ccbyte2 <= 0x2F) { // Mid-row codes: color/underline switch (ccbyte2) { case 0x20: // TODO: shouldn't affect roll-ups... this._clearActiveCues(timestamp); // RCL: Resume Caption Loading // begin pop on break; case 0x21: // BS: Backspace this.cue.text = this.cue.text.substr(0, this.cue.text.length - 1); break; case 0x22: // AOF: reserved (formerly alarm off) break; case 0x23: // AON: reserved (formerly alarm on) break; case 0x24: // DER: Delete to end of row break; case 0x25: // RU2: roll-up 2 rows //this._rollup(2); break; case 0x26: // RU3: roll-up 3 rows //this._rollup(3); break; case 0x27: // RU4: roll-up 4 rows //this._rollup(4); break; case 0x28: // FON: Flash on break; case 0x29: // RDC: Resume direct captioning this._clearActiveCues(timestamp); break; case 0x2A: // TR: Text Restart break; case 0x2B: // RTD: Resume Text Display break; case 0x2C: // EDM: Erase Displayed Memory this._clearActiveCues(timestamp); break; case 0x2D: // CR: Carriage Return // only affects roll-up //this._rollup(1); break; case 0x2E: // ENM: Erase non-displayed memory this._text = ''; break; case 0x2F: this._flipMemory(timestamp); // EOC: End of caption // hide any displayed captions and show any hidden one break; } } if ((ccbyte1 === 0x17 || ccbyte1 === 0x1F) && ccbyte2 >= 0x21 && ccbyte2 <= 0x23) { // Mid-row codes: color/underline switch (ccbyte2) { case 0x21: // TO1: tab offset 1 column break; case 0x22: // TO1: tab offset 2 column break; case 0x23: // TO1: tab offset 3 column break; } } else { // Probably a pre-amble address code } } } } } }, { key: '_fromCharCode', value: function _fromCharCode(tmpByte) { switch (tmpByte) { case 42: return 'á'; case 2: return 'á'; case 2: return 'é'; case 4: return 'í'; case 5: return 'ó'; case 6: return 'ú'; case 3: return 'ç'; case 4: return '÷'; case 5: return 'Ñ'; case 6: return 'ñ'; case 7: return '█'; default: return String.fromCharCode(tmpByte); } } }, { key: '_flipMemory', value: function _flipMemory(timestamp) { this._clearActiveCues(timestamp); this._flushCaptions(timestamp); } }, { key: '_flushCaptions', value: function _flushCaptions(timestamp) { if (!this._has708) { this._textTrack = this.media.addTextTrack('captions', 'English', 'en'); this._has708 = true; } var _iteratorNormalCompletion = true; var _didIteratorError = false; var _iteratorError = undefined; try { for (var _iterator = this.memory[Symbol.iterator](), _step; !(_iteratorNormalCompletion = (_step = _iterator.next()).done); _iteratorNormalCompletion = true) { var memoryItem = _step.value; memoryItem.startTime = timestamp; this._textTrack.addCue(memoryItem); this.display.push(memoryItem); } } catch (err) { _didIteratorError = true; _iteratorError = err; } finally { try { if (!_iteratorNormalCompletion && _iterator.return) { _iterator.return(); } } finally { if (_didIteratorError) { throw _iteratorError; } } } this.memory = []; this.cue = null; } }, { key: '_clearActiveCues', value: function _clearActiveCues(timestamp) { var _iteratorNormalCompletion2 = true; var _didIteratorError2 = false; var _iteratorError2 = undefined; try { for (var _iterator2 = this.display[Symbol.iterator](), _step2; !(_iteratorNormalCompletion2 = (_step2 = _iterator2.next()).done); _iteratorNormalCompletion2 = true) { var displayItem = _step2.value; displayItem.endTime = timestamp; } } catch (err) { _didIteratorError2 = true; _iteratorError2 = err; } finally { try { if (!_iteratorNormalCompletion2 && _iterator2.return) { _iterator2.return(); } } finally { if (_didIteratorError2) { throw _iteratorError2; } } } this.display = []; } /* _rollUp(n) { // TODO: implement roll-up captions } */ }, { key: '_clearBufferedCues', value: function _clearBufferedCues() { //remove them all... } }]); return CEA708Interpreter; }(); exports.default = CEA708Interpreter; },{}],36:[function(require,module,exports){ 'use strict'; var _typeof = typeof Symbol === "function" && typeof Symbol.iterator === "symbol" ? function (obj) { return typeof obj; } : function (obj) { return obj && typeof Symbol === "function" && obj.constructor === Symbol ? "symbol" : typeof obj; }; Object.defineProperty(exports, "__esModule", { value: true }); function noop() {} var fakeLogger = { trace: noop, debug: noop, log: noop, warn: noop, info: noop, error: noop }; var exportedLogger = fakeLogger; //let lastCallTime; // function formatMsgWithTimeInfo(type, msg) { // const now = Date.now(); // const diff = lastCallTime ? '+' + (now - lastCallTime) : '0'; // lastCallTime = now; // msg = (new Date(now)).toISOString() + ' | [' + type + '] > ' + msg + ' ( ' + diff + ' ms )'; // return msg; // } function formatMsg(type, msg) { msg = '[' + type + '] > ' + msg; return msg; } function consolePrintFn(type) { var func = window.console[type]; if (func) { return function () { for (var _len = arguments.length, args = Array(_len), _key = 0; _key < _len; _key++) { args[_key] = arguments[_key]; } if (args[0]) { args[0] = formatMsg(type, args[0]); } func.apply(window.console, args); }; } return noop; } function exportLoggerFunctions(debugConfig) { for (var _len2 = arguments.length, functions = Array(_len2 > 1 ? _len2 - 1 : 0), _key2 = 1; _key2 < _len2; _key2++) { functions[_key2 - 1] = arguments[_key2]; } functions.forEach(function (type) { exportedLogger[type] = debugConfig[type] ? debugConfig[type].bind(debugConfig) : consolePrintFn(type); }); } var enableLogs = exports.enableLogs = function enableLogs(debugConfig) { if (debugConfig === true || (typeof debugConfig === 'undefined' ? 'undefined' : _typeof(debugConfig)) === 'object') { exportLoggerFunctions(debugConfig, // Remove out from list here to hard-disable a log-level //'trace', 'debug', 'log', 'info', 'warn', 'error'); // Some browsers don't allow to use bind on console object anyway // fallback to default if needed try { exportedLogger.log(); } catch (e) { exportedLogger = fakeLogger; } } else { exportedLogger = fakeLogger; } }; var logger = exports.logger = exportedLogger; },{}],37:[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]+)?\/)(.*)$/i.exec(baseURL); var baseURLProtocol = baseURLDomainSplit[3]; var baseURLDomain = baseURLDomainSplit[1]; var baseURLPath = baseURLDomainSplit[5]; var builtURL = null; if (/^\/\//.test(relativeURL)) { builtURL = baseURLProtocol + '://' + URLHelper.buildAbsolutePath('', relativeURL.substring(2)); } else if (/^\//.test(relativeURL)) { builtURL = baseURLDomain + URLHelper.buildAbsolutePath('', relativeURL.substring(1)); } else { builtURL = URLHelper.buildAbsolutePath(baseURLDomain + baseURLPath, relativeURL); } // put the query and hash parts back if (relativeURLQuery) { builtURL += relativeURLQuery; } if (relativeURLHash) { builtURL += relativeURLHash; } return builtURL; }, // build an absolute path using the provided basePath // adapted from https://developer.mozilla.org/en-US/docs/Web/API/document/cookie#Using_relative_URLs_in_the_path_parameter // this does not handle the case where relativePath is "/" or "//". These cases should be handled outside this. buildAbsolutePath: function buildAbsolutePath(basePath, relativePath) { var sRelPath = relativePath; var nUpLn, sDir = '', sPath = basePath.replace(/[^\/]*$/, 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; },{}],38:[function(require,module,exports){ 'use strict'; 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; }; }(); /** * XHR based logger */ Object.defineProperty(exports, "__esModule", { value: true }); var _logger = require('../utils/logger'); function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } } 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() { var loader = this.loader, timeoutHandle = this.timeoutHandle; if (loader && loader.readyState !== 4) { this.stats.aborted = true; loader.abort(); } if (timeoutHandle) { window.clearTimeout(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 - 1); } 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.loadInternal(); } }, { key: 'loadInternal', value: function loadInternal() { var xhr; if (typeof XDomainRequest !== 'undefined') { xhr = this.loader = new XDomainRequest(); } else { xhr = this.loader = new XMLHttpRequest(); } xhr.onloadend = this.loadend.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, this.url); } this.timeoutHandle = window.setTimeout(this.loadtimeout.bind(this), this.timeout); xhr.send(); } }, { key: 'loadend', value: function loadend(event) { var xhr = event.currentTarget, status = xhr.status, stats = this.stats; // don't proceed if xhr has been aborted if (!stats.aborted) { // http status between 200 to 299 are all successful if (status >= 200 && status < 300) { window.clearTimeout(this.timeoutHandle); stats.tload = performance.now(); this.onSuccess(event, stats); } else { // error ... if (stats.retry < this.maxRetry) { _logger.logger.warn(status + ' 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); stats.retry++; } else { window.clearTimeout(this.timeoutHandle); _logger.logger.error(status + ' while loading ' + this.url); this.onError(event); } } } } }, { key: 'loadtimeout', value: function loadtimeout(event) { _logger.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; },{"../utils/logger":36}]},{},[26])(26) }); //# sourceMappingURL=hls.js.map