diff --git a/dashboard-ui/bower_components/hls.js/.bower.json b/dashboard-ui/bower_components/hls.js/.bower.json index 1429819356..93b7b6afcb 100644 --- a/dashboard-ui/bower_components/hls.js/.bower.json +++ b/dashboard-ui/bower_components/hls.js/.bower.json @@ -1,6 +1,6 @@ { "name": "hls.js", - "version": "0.5.11", + "version": "0.5.13", "license": "Apache-2.0", "description": "Media Source Extension - HLS library, by/for Dailymotion", "homepage": "https://github.com/dailymotion/hls.js", @@ -16,11 +16,11 @@ "test", "tests" ], - "_release": "0.5.11", + "_release": "0.5.13", "_resolution": { "type": "version", - "tag": "v0.5.11", - "commit": "8896e0062b3f8384379c7b990424e3fab9c1c41b" + "tag": "v0.5.13", + "commit": "ef9fae497dd6d6e80a6d471c55eef2310e883853" }, "_source": "git://github.com/dailymotion/hls.js.git", "_target": "~0.5.7", diff --git a/dashboard-ui/bower_components/hls.js/API.md b/dashboard-ui/bower_components/hls.js/API.md index 87efb3aef6..cdce8ef240 100644 --- a/dashboard-ui/bower_components/hls.js/API.md +++ b/dashboard-ui/bower_components/hls.js/API.md @@ -190,6 +190,7 @@ configuration parameters could be provided to hls.js upon instantiation of Hls O maxBufferSize : 60*1000*1000, maxBufferHole : 0.3, maxSeekHole : 2, + maxFragLookUpTolerance : 0.2, liveSyncDurationCount : 3, liveMaxLatencyDurationCount: 10, enableWorker : true, @@ -268,6 +269,25 @@ in case playback is stalled, and a buffered range is available upfront, less tha hls.js will jump over this buffer hole to reach the beginning of this following buffered range. ```maxSeekHole``` allows to configure this jumpable threshold. +#### ```maxFragLookUpTolerance``` +(default 0.2s) + +this tolerance factor is used during fragment lookup. +instead of checking whether buffered.end is located within [start, end] range, frag lookup will be done by checking within [start-maxFragLookUpTolerance, end-maxFragLookUpTolerance] range + +this tolerance factor is used to cope with situations like +buffered.end = 9.991 +frag[Ø] : [0,10] +frag[1] : [10,20] +=> buffered.end is within frag[0] range, but as we are close to frag[1], frag[1] should be choosen instead + + +if maxFragLookUpTolerance=0.2, +this lookup will be adjusted to +frag[Ø] : [-0.2,9.8] +frag[1] : [9.8,19.8] +=> this time, buffered.end is within frag[1] range, and frag[1] will be the next fragment to be loaded, as expected. + #### ```maxMaxBufferLength``` (default 600s) @@ -495,6 +515,12 @@ get : return last loaded fragment quality level. set : set quality level for next loaded fragment set to -1 for automatic level selection +#### ```hls.nextLoadLevel``` +get : return quality level that will be used to load next fragment + +set : force quality level for next loaded fragment. quality level will be forced only for that fragment. +after a fragment at this quality level has been loaded, ```hls.loadLevel``` will prevail. + #### ```hls.firstLevel``` get : first level index (index of first level appearing in Manifest. it is usually defined as start level hint for player) diff --git a/dashboard-ui/bower_components/hls.js/bower.json b/dashboard-ui/bower_components/hls.js/bower.json index 47ad5c1df3..a65baf6646 100644 --- a/dashboard-ui/bower_components/hls.js/bower.json +++ b/dashboard-ui/bower_components/hls.js/bower.json @@ -1,6 +1,6 @@ { "name": "hls.js", - "version": "0.5.11", + "version": "0.5.13", "license": "Apache-2.0", "description": "Media Source Extension - HLS library, by/for Dailymotion", "homepage": "https://github.com/dailymotion/hls.js", diff --git a/dashboard-ui/bower_components/hls.js/dist/hls.js b/dashboard-ui/bower_components/hls.js/dist/hls.js index 0ccbb23895..84399342b0 100644 --- a/dashboard-ui/bower_components/hls.js/dist/hls.js +++ b/dashboard-ui/bower_components/hls.js/dist/hls.js @@ -1125,15 +1125,6 @@ var LevelController = function (_EventHandler) { this.hls.trigger(_events2.default.LEVEL_LOADING, { url: level.url[urlId], level: levelId, id: urlId }); } } - }, { - key: 'nextLoadLevel', - value: function nextLoadLevel() { - if (this._manualLevel !== -1) { - return this._manualLevel; - } else { - return this.hls.abrController.nextAutoLevel; - } - } }, { key: 'levels', get: function get() { @@ -1180,6 +1171,21 @@ var LevelController = function (_EventHandler) { 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; @@ -1333,6 +1339,8 @@ var StreamController = function (_EventHandler) { }, { key: 'doTick', value: function doTick() { + var _this2 = this; + var pos, level, levelDetails, @@ -1453,40 +1461,57 @@ var StreamController = function (_EventHandler) { } } if (!_frag) { - var foundFrag; - if (bufferEnd < end) { - foundFrag = _binarySearch2.default.search(fragments, function (candidate) { - //logger.log(`level/sn/start/end/bufEnd:${level}/${candidate.sn}/${candidate.start}/${(candidate.start+candidate.duration)}/${bufferEnd}`); - // offset should be within fragment boundary - if (candidate.start + candidate.duration <= bufferEnd) { - return 1; - } else if (candidate.start > bufferEnd) { - return -1; + (function () { + var foundFrag = undefined; + var maxFragLookUpTolerance = config.maxFragLookUpTolerance; + if (bufferEnd < end) { + if (bufferEnd > end - maxFragLookUpTolerance) { + maxFragLookUpTolerance = 0; } - return 0; - }); - } else { - // reach end of playlist - foundFrag = fragments[fragLen - 1]; - } - if (foundFrag) { - _frag = foundFrag; - start = foundFrag.start; - //logger.log('find SN matching with pos:' + bufferEnd + ':' + frag.sn); - if (fragPrevious && _frag.level === fragPrevious.level && _frag.sn === fragPrevious.sn) { - if (_frag.sn < levelDetails.endSN) { - _frag = fragments[_frag.sn + 1 - levelDetails.startSN]; - _logger.logger.log('SN just loaded, load next one: ' + _frag.sn); - } else { - // have we reached end of VOD playlist ? - if (!levelDetails.live) { - this.hls.trigger(_events2.default.BUFFER_EOS); - this.state = State.ENDED; + foundFrag = _binarySearch2.default.search(fragments, function (candidate) { + // offset should be within fragment boundary - config.maxFragLookUpTolerance + // this is to cope with situations like + // bufferEnd = 9.991 + // frag[Ø] : [0,10] + // frag[1] : [10,20] + // bufferEnd is within frag[0] range ... although what we are expecting is to return frag[1] here + // frag start frag start+duration + // |-----------------------------| + // <---> <---> + // ...--------><-----------------------------><---------.... + // previous frag matching fragment next frag + // return -1 return 0 return 1 + //logger.log(`level/sn/start/end/bufEnd:${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; } - _frag = null; } } - } + })(); } if (_frag) { //logger.log(' loading frag ' + i +',pos/bufEnd:' + pos.toFixed(3) + '/' + bufferEnd.toFixed(3)); @@ -1548,25 +1573,47 @@ var StreamController = function (_EventHandler) { var requestDelay = performance.now() - frag.trequest; // monitor fragment load progress after half of expected fragment duration,to stabilize bitrate if (requestDelay > 500 * frag.duration) { - var loadRate = frag.loaded * 1000 / requestDelay; // byte/s + 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; } pos = v.currentTime; var fragLoadedDelay = (frag.expectedLen - frag.loaded) / loadRate; var bufferStarvationDelay = this.bufferInfo(pos, config.maxBufferHole).end - pos; - var fragLevelNextLoadedDelay = frag.duration * this.levels[hls.nextLoadLevel].bitrate / (8 * loadRate); //bps/Bps - /* if we have less than 2 frag duration in buffer and if frag loaded delay is greater than buffer starvation delay - ... and also bigger than duration needed to load fragment at next level ...*/ - if (bufferStarvationDelay < 2 * frag.duration && fragLoadedDelay > bufferStarvationDelay && fragLoadedDelay > fragLevelNextLoadedDelay) { - // abort fragment loading ... - _logger.logger.warn('loading too slow, abort fragment loading'); - _logger.logger.log('fragLoadedDelay/bufferStarvationDelay/fragLevelNextLoadedDelay :' + fragLoadedDelay.toFixed(1) + '/' + bufferStarvationDelay.toFixed(1) + '/' + fragLevelNextLoadedDelay.toFixed(1)); - //abort fragment loading - frag.loader.abort(); - hls.trigger(_events2.default.FRAG_LOAD_EMERGENCY_ABORTED, { frag: frag }); - // switch back to IDLE state to request new fragment at lowest level - this.state = State.IDLE; + // 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 = this.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 * this.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(); + hls.trigger(_events2.default.FRAG_LOAD_EMERGENCY_ABORTED, { frag: frag }); + // switch back to IDLE state to request new fragment at lower level + this.state = State.IDLE; + } } } } @@ -2151,7 +2198,7 @@ var StreamController = function (_EventHandler) { }, { key: 'onFragParsingData', value: function onFragParsingData(data) { - var _this2 = this; + var _this3 = this; if (this.state === State.PARSING) { this.tparse2 = Date.now(); @@ -2166,7 +2213,7 @@ var StreamController = function (_EventHandler) { [data.data1, data.data2].forEach(function (buffer) { if (buffer) { - _this2.pendingAppending++; + _this3.pendingAppending++; hls.trigger(_events2.default.BUFFER_APPENDING, { type: data.type, data: buffer }); } }); @@ -5356,6 +5403,7 @@ var Hls = function () { maxBufferSize: 60 * 1000 * 1000, maxBufferHole: 0.5, maxSeekHole: 2, + maxFragLookUpTolerance: 0.2, liveSyncDurationCount: 3, liveMaxLatencyDurationCount: Infinity, liveSyncDuration: undefined, @@ -5574,13 +5622,13 @@ var Hls = function () { }, { key: 'nextLoadLevel', get: function get() { - return this.levelController.nextLoadLevel(); + return this.levelController.nextLoadLevel; } /** set quality level of next loaded fragment **/ , set: function set(level) { - this.levelController.level = level; + this.levelController.nextLoadLevel = level; } /** Return first level (index of first level referenced in manifest) diff --git a/dashboard-ui/bower_components/hls.js/dist/hls.js.map b/dashboard-ui/bower_components/hls.js/dist/hls.js.map index e7d116ae99..c2758174c2 100644 --- a/dashboard-ui/bower_components/hls.js/dist/hls.js.map +++ b/dashboard-ui/bower_components/hls.js/dist/hls.js.map @@ -40,7 +40,7 @@ "src/utils/xhr-loader.js" ], "names": [], - "mappings": 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"file": "generated.js", "sourceRoot": "", "sourcesContent": [ @@ -49,8 +49,8 @@ "var bundleFn = arguments[3];\nvar sources = arguments[4];\nvar cache = arguments[5];\n\nvar stringify = JSON.stringify;\n\nmodule.exports = function (fn) {\n var keys = [];\n var wkey;\n var cacheKeys = Object.keys(cache);\n\n for (var i = 0, l = cacheKeys.length; i < l; i++) {\n var key = cacheKeys[i];\n var exp = cache[key].exports;\n // Using babel as a transpiler to use esmodule, the export will always\n // be an object with the default export as a property of it. To ensure\n // the existing api and babel esmodule exports are both supported we\n // check for both\n if (exp === fn || exp.default === fn) {\n wkey = key;\n break;\n }\n }\n\n if (!wkey) {\n wkey = Math.floor(Math.pow(16, 8) * Math.random()).toString(16);\n var wcache = {};\n for (var i = 0, l = cacheKeys.length; i < l; i++) {\n var key = cacheKeys[i];\n wcache[key] = key;\n }\n sources[wkey] = [\n Function(['require','module','exports'], '(' + fn + ')(self)'),\n wcache\n ];\n }\n var skey = Math.floor(Math.pow(16, 8) * Math.random()).toString(16);\n\n var scache = {}; scache[wkey] = wkey;\n sources[skey] = [\n Function(['require'], (\n // try to call default if defined to also support babel esmodule\n // exports\n 'var f = require(' + stringify(wkey) + ');' +\n '(f.default ? f.default : f)(self);'\n )),\n scache\n ];\n\n var src = '(' + bundleFn + ')({'\n + Object.keys(sources).map(function (key) {\n return stringify(key) + ':['\n + sources[key][0]\n + ',' + stringify(sources[key][1]) + ']'\n ;\n }).join(',')\n + '},{},[' + stringify(skey) + '])'\n ;\n\n var URL = window.URL || window.webkitURL || window.mozURL || window.msURL;\n\n return new Worker(URL.createObjectURL(\n new Blob([src], { type: 'text/javascript' })\n ));\n};\n", "/*\n * simple ABR Controller\n*/\n\nimport Event from '../events';\nimport EventHandler from '../event-handler';\n\nclass AbrController extends EventHandler {\n\n constructor(hls) {\n super(hls, Event.FRAG_LOAD_PROGRESS);\n this.lastfetchlevel = 0;\n this._autoLevelCapping = -1;\n this._nextAutoLevel = -1;\n }\n\n destroy() {\n EventHandler.prototype.destroy.call(this);\n }\n\n onFragLoadProgress(data) {\n var stats = data.stats;\n // only update stats if first frag loading\n // if same frag is loaded multiple times, it might be in browser cache, and loaded quickly\n // and leading to wrong bw estimation\n if (stats.aborted === undefined && data.frag.loadCounter === 1) {\n this.lastfetchduration = (performance.now() - stats.trequest) / 1000;\n this.lastfetchlevel = data.frag.level;\n this.lastbw = (stats.loaded * 8) / this.lastfetchduration;\n //console.log(`fetchDuration:${this.lastfetchduration},bw:${(this.lastbw/1000).toFixed(0)}/${stats.aborted}`);\n }\n }\n\n /** Return the capping/max level value that could be used by automatic level selection algorithm **/\n get autoLevelCapping() {\n return this._autoLevelCapping;\n }\n\n /** set the capping/max level value that could be used by automatic level selection algorithm **/\n set autoLevelCapping(newLevel) {\n this._autoLevelCapping = newLevel;\n }\n\n get nextAutoLevel() {\n var lastbw = this.lastbw, hls = this.hls,adjustedbw, i, maxAutoLevel;\n if (this._autoLevelCapping === -1) {\n maxAutoLevel = hls.levels.length - 1;\n } else {\n maxAutoLevel = this._autoLevelCapping;\n }\n\n if (this._nextAutoLevel !== -1) {\n var nextLevel = Math.min(this._nextAutoLevel,maxAutoLevel);\n if (nextLevel === this.lastfetchlevel) {\n this._nextAutoLevel = -1;\n } else {\n return nextLevel;\n }\n }\n\n // follow algorithm captured from stagefright :\n // https://android.googlesource.com/platform/frameworks/av/+/master/media/libstagefright/httplive/LiveSession.cpp\n // Pick the highest bandwidth stream below or equal to estimated bandwidth.\n for (i = 0; i <= maxAutoLevel; i++) {\n // consider only 80% of the available bandwidth, but if we are switching up,\n // be even more conservative (70%) to avoid overestimating and immediately\n // switching back.\n if (i <= this.lastfetchlevel) {\n adjustedbw = 0.8 * lastbw;\n } else {\n adjustedbw = 0.7 * lastbw;\n }\n if (adjustedbw < hls.levels[i].bitrate) {\n return Math.max(0, i - 1);\n }\n }\n return i - 1;\n }\n\n set nextAutoLevel(nextLevel) {\n this._nextAutoLevel = nextLevel;\n }\n}\n\nexport default AbrController;\n\n", "/*\n * Buffer Controller\n*/\n\nimport Event from '../events';\nimport EventHandler from '../event-handler';\nimport {logger} from '../utils/logger';\nimport {ErrorTypes, ErrorDetails} from '../errors';\n\n\nclass BufferController extends EventHandler {\n\n constructor(hls) {\n super(hls,\n Event.MEDIA_ATTACHING,\n Event.MEDIA_DETACHING,\n Event.BUFFER_RESET,\n Event.BUFFER_APPENDING,\n Event.BUFFER_CODECS,\n Event.BUFFER_EOS,\n Event.BUFFER_FLUSHING);\n\n // Source Buffer listeners\n this.onsbue = this.onSBUpdateEnd.bind(this);\n this.onsbe = this.onSBUpdateError.bind(this);\n }\n\n destroy() {\n EventHandler.prototype.destroy.call(this);\n }\n\n onMediaAttaching(data) {\n var media = this.media = data.media;\n // setup the media source\n var ms = this.mediaSource = new MediaSource();\n //Media Source listeners\n this.onmso = this.onMediaSourceOpen.bind(this);\n this.onmse = this.onMediaSourceEnded.bind(this);\n this.onmsc = this.onMediaSourceClose.bind(this);\n ms.addEventListener('sourceopen', this.onmso);\n ms.addEventListener('sourceended', this.onmse);\n ms.addEventListener('sourceclose', this.onmsc);\n // link video and media Source\n media.src = URL.createObjectURL(ms);\n }\n\n onMediaDetaching() {\n var ms = this.mediaSource;\n if (ms) {\n if (ms.readyState === 'open') {\n try {\n // endOfStream could trigger exception if any sourcebuffer is in updating state\n // we don't really care about checking sourcebuffer state here,\n // as we are anyway detaching the MediaSource\n // let's just avoid this exception to propagate\n ms.endOfStream();\n } catch(err) {\n logger.warn(`onMediaDetaching:${err.message} while calling endOfStream`);\n }\n }\n ms.removeEventListener('sourceopen', this.onmso);\n ms.removeEventListener('sourceended', this.onmse);\n ms.removeEventListener('sourceclose', this.onmsc);\n // unlink MediaSource from video tag\n this.media.src = '';\n this.media.removeAttribute('src');\n this.mediaSource = null;\n this.media = null;\n this.pendingTracks = null;\n }\n this.onmso = this.onmse = this.onmsc = null;\n this.hls.trigger(Event.MEDIA_DETACHED);\n }\n\n onMediaSourceOpen() {\n logger.log('media source opened');\n this.hls.trigger(Event.MEDIA_ATTACHED, { media : this.media });\n // once received, don't listen anymore to sourceopen event\n this.mediaSource.removeEventListener('sourceopen', this.onmso);\n // if any buffer codecs pending, treat it here.\n var pendingTracks = this.pendingTracks;\n if (pendingTracks) {\n this.onBufferCodecs(pendingTracks);\n this.pendingTracks = null;\n this.doAppending();\n }\n }\n\n onMediaSourceClose() {\n logger.log('media source closed');\n }\n\n onMediaSourceEnded() {\n logger.log('media source ended');\n }\n\n\n onSBUpdateEnd() {\n\n if (this._needsFlush) {\n this.doFlush();\n }\n\n if (this._needsEos) {\n this.onBufferEos();\n }\n\n this.hls.trigger(Event.BUFFER_APPENDED);\n\n this.doAppending();\n }\n\n onSBUpdateError(event) {\n logger.error(`sourceBuffer error:${event}`);\n // according to http://www.w3.org/TR/media-source/#sourcebuffer-append-error\n // this error might not always be fatal (it is fatal if decode error is set, in that case\n // it will be followed by a mediaElement error ...)\n this.hls.trigger(Event.ERROR, {type: ErrorTypes.MEDIA_ERROR, details: ErrorDetails.BUFFER_APPENDING_ERROR, fatal: false});\n // we don't need to do more than that, as accordin to the spec, updateend will be fired just after\n }\n\n onBufferReset() {\n var sourceBuffer = this.sourceBuffer;\n if (sourceBuffer) {\n for(var type in sourceBuffer) {\n var sb = sourceBuffer[type];\n try {\n this.mediaSource.removeSourceBuffer(sb);\n sb.removeEventListener('updateend', this.onsbue);\n sb.removeEventListener('error', this.onsbe);\n } catch(err) {\n }\n }\n this.sourceBuffer = null;\n }\n this.flushRange = [];\n this.appended = 0;\n }\n\n onBufferCodecs(tracks) {\n var sb,trackName,track, codec, mimeType;\n\n if (!this.media) {\n this.pendingTracks = tracks;\n return;\n }\n\n if (!this.sourceBuffer) {\n var sourceBuffer = {}, mediaSource = this.mediaSource;\n for (trackName in tracks) {\n track = tracks[trackName];\n // use levelCodec as first priority\n codec = track.levelCodec || track.codec;\n mimeType = `${track.container};codecs=${codec}`;\n logger.log(`creating sourceBuffer with mimeType:${mimeType}`);\n sb = sourceBuffer[trackName] = mediaSource.addSourceBuffer(mimeType);\n sb.addEventListener('updateend', this.onsbue);\n sb.addEventListener('error', this.onsbe);\n }\n this.sourceBuffer = sourceBuffer;\n }\n }\n\n onBufferAppending(data) {\n if (!this.segments) {\n this.segments = [ data ];\n } else {\n this.segments.push(data);\n }\n this.doAppending();\n }\n\n onBufferAppendFail(data) {\n logger.error(`sourceBuffer error:${data.event}`);\n // according to http://www.w3.org/TR/media-source/#sourcebuffer-append-error\n // this error might not always be fatal (it is fatal if decode error is set, in that case\n // it will be followed by a mediaElement error ...)\n this.hls.trigger(Event.ERROR, {type: ErrorTypes.MEDIA_ERROR, details: ErrorDetails.BUFFER_APPENDING_ERROR, fatal: false, frag: this.fragCurrent});\n }\n\n onBufferEos() {\n var sb = this.sourceBuffer, mediaSource = this.mediaSource;\n if (!mediaSource || mediaSource.readyState !== 'open') {\n return;\n }\n if (!((sb.audio && sb.audio.updating) || (sb.video && sb.video.updating))) {\n logger.log('all media data available, signal endOfStream() to MediaSource and stop loading fragment');\n //Notify the media element that it now has all of the media data\n mediaSource.endOfStream();\n this._needsEos = false;\n } else {\n this._needsEos = true;\n }\n }\n\n onBufferFlushing(data) {\n this.flushRange.push({start: data.startOffset, end: data.endOffset});\n // attempt flush immediatly\n this.flushBufferCounter = 0;\n this.doFlush();\n }\n\n doFlush() {\n // loop through all buffer ranges to flush\n while(this.flushRange.length) {\n var range = this.flushRange[0];\n // flushBuffer will abort any buffer append in progress and flush Audio/Video Buffer\n if (this.flushBuffer(range.start, range.end)) {\n // range flushed, remove from flush array\n this.flushRange.shift();\n this.flushBufferCounter = 0;\n } else {\n this._needsFlush = true;\n // avoid looping, wait for SB update end to retrigger a flush\n return;\n }\n }\n if (this.flushRange.length === 0) {\n // everything flushed\n this._needsFlush = false;\n\n // let's recompute this.appended, which is used to avoid flush looping\n var appended = 0;\n var sourceBuffer = this.sourceBuffer;\n if (sourceBuffer) {\n for (var type in sourceBuffer) {\n appended += sourceBuffer[type].buffered.length;\n }\n }\n this.appended = appended;\n this.hls.trigger(Event.BUFFER_FLUSHED);\n }\n }\n\n doAppending() {\n var hls = this.hls, sourceBuffer = this.sourceBuffer, segments = this.segments;\n if (sourceBuffer) {\n if (this.media.error) {\n segments = [];\n logger.error('trying to append although a media error occured, flush segment and abort');\n return;\n }\n for (var type in sourceBuffer) {\n if (sourceBuffer[type].updating) {\n //logger.log('sb update in progress');\n return;\n }\n }\n if (segments.length) {\n var segment = segments.shift();\n try {\n //logger.log(`appending ${segment.type} SB, size:${segment.data.length});\n sourceBuffer[segment.type].appendBuffer(segment.data);\n this.appendError = 0;\n this.appended++;\n } catch(err) {\n // in case any error occured while appending, put back segment in segments table\n logger.error(`error while trying to append buffer:${err.message}`);\n segments.unshift(segment);\n var event = {type: ErrorTypes.MEDIA_ERROR};\n if(err.code !== 22) {\n if (this.appendError) {\n this.appendError++;\n } else {\n this.appendError = 1;\n }\n event.details = ErrorDetails.BUFFER_APPEND_ERROR;\n event.frag = this.fragCurrent;\n /* with UHD content, we could get loop of quota exceeded error until\n browser is able to evict some data from sourcebuffer. retrying help recovering this\n */\n if (this.appendError > hls.config.appendErrorMaxRetry) {\n logger.log(`fail ${hls.config.appendErrorMaxRetry} times to append segment in sourceBuffer`);\n segments = [];\n event.fatal = true;\n hls.trigger(Event.ERROR, event);\n return;\n } else {\n event.fatal = false;\n hls.trigger(Event.ERROR, event);\n }\n } else {\n // QuotaExceededError: http://www.w3.org/TR/html5/infrastructure.html#quotaexceedederror\n // let's stop appending any segments, and report BUFFER_FULL_ERROR error\n segments = [];\n event.details = ErrorDetails.BUFFER_FULL_ERROR;\n hls.trigger(Event.ERROR,event);\n }\n }\n }\n }\n }\n\n /*\n flush specified buffered range,\n return true once range has been flushed.\n as sourceBuffer.remove() is asynchronous, flushBuffer will be retriggered on sourceBuffer update end\n */\n flushBuffer(startOffset, endOffset) {\n var sb, i, bufStart, bufEnd, flushStart, flushEnd;\n //logger.log('flushBuffer,pos/start/end: ' + this.media.currentTime + '/' + startOffset + '/' + endOffset);\n // safeguard to avoid infinite looping : don't try to flush more than the nb of appended segments\n if (this.flushBufferCounter < this.appended && this.sourceBuffer) {\n for (var type in this.sourceBuffer) {\n sb = this.sourceBuffer[type];\n if (!sb.updating) {\n for (i = 0; i < sb.buffered.length; i++) {\n bufStart = sb.buffered.start(i);\n bufEnd = sb.buffered.end(i);\n // workaround firefox not able to properly flush multiple buffered range.\n if (navigator.userAgent.toLowerCase().indexOf('firefox') !== -1 && endOffset === Number.POSITIVE_INFINITY) {\n flushStart = startOffset;\n flushEnd = endOffset;\n } else {\n flushStart = Math.max(bufStart, startOffset);\n flushEnd = Math.min(bufEnd, endOffset);\n }\n /* sometimes sourcebuffer.remove() does not flush\n the exact expected time range.\n to avoid rounding issues/infinite loop,\n only flush buffer range of length greater than 500ms.\n */\n if (Math.min(flushEnd,bufEnd) - flushStart > 0.5 ) {\n this.flushBufferCounter++;\n logger.log(`flush ${type} [${flushStart},${flushEnd}], of [${bufStart},${bufEnd}], pos:${this.media.currentTime}`);\n sb.remove(flushStart, flushEnd);\n return false;\n }\n }\n } else {\n //logger.log('abort ' + type + ' append in progress');\n // this will abort any appending in progress\n //sb.abort();\n logger.warn('cannot flush, sb updating in progress');\n return false;\n }\n }\n } else {\n logger.warn('abort flushing too many retries');\n }\n logger.log('buffer flushed');\n // everything flushed !\n return true;\n }\n}\n\nexport default BufferController;\n", - "/*\n * Level Controller\n*/\n\nimport Event from '../events';\nimport EventHandler from '../event-handler';\nimport {logger} from '../utils/logger';\nimport {ErrorTypes, ErrorDetails} from '../errors';\n\nclass LevelController extends EventHandler {\n\n constructor(hls) {\n super(hls,\n Event.MANIFEST_LOADED,\n Event.LEVEL_LOADED,\n Event.ERROR);\n this.ontick = this.tick.bind(this);\n this._manualLevel = this._autoLevelCapping = -1;\n }\n\n destroy() {\n if (this.timer) {\n clearInterval(this.timer);\n }\n this._manualLevel = -1;\n }\n\n onManifestLoaded(data) {\n var levels0 = [], levels = [], bitrateStart, i, bitrateSet = {}, videoCodecFound = false, audioCodecFound = false, hls = this.hls;\n\n // regroup redundant level together\n data.levels.forEach(level => {\n if(level.videoCodec) {\n videoCodecFound = true;\n }\n if(level.audioCodec) {\n audioCodecFound = true;\n }\n var redundantLevelId = bitrateSet[level.bitrate];\n if (redundantLevelId === undefined) {\n bitrateSet[level.bitrate] = levels0.length;\n level.url = [level.url];\n level.urlId = 0;\n levels0.push(level);\n } else {\n levels0[redundantLevelId].url.push(level.url);\n }\n });\n\n // remove audio-only level if we also have levels with audio+video codecs signalled\n if(videoCodecFound && audioCodecFound) {\n levels0.forEach(level => {\n if(level.videoCodec) {\n levels.push(level);\n }\n });\n } else {\n levels = levels0;\n }\n\n // only keep level with supported audio/video codecs\n levels = levels.filter(function(level) {\n var checkSupportedAudio = function(codec) { return MediaSource.isTypeSupported(`audio/mp4;codecs=${codec}`);};\n var checkSupportedVideo = function(codec) { return MediaSource.isTypeSupported(`video/mp4;codecs=${codec}`);};\n var audioCodec = level.audioCodec, videoCodec = level.videoCodec;\n\n return (!audioCodec || checkSupportedAudio(audioCodec)) &&\n (!videoCodec || checkSupportedVideo(videoCodec));\n });\n\n if(levels.length) {\n // start bitrate is the first bitrate of the manifest\n bitrateStart = levels[0].bitrate;\n // sort level on bitrate\n levels.sort(function (a, b) {\n return a.bitrate - b.bitrate;\n });\n this._levels = levels;\n // find index of first level in sorted levels\n for (i = 0; i < levels.length; i++) {\n if (levels[i].bitrate === bitrateStart) {\n this._firstLevel = i;\n logger.log(`manifest loaded,${levels.length} level(s) found, first bitrate:${bitrateStart}`);\n break;\n }\n }\n hls.trigger(Event.MANIFEST_PARSED, {levels: this._levels, firstLevel: this._firstLevel, stats: data.stats});\n } else {\n hls.trigger(Event.ERROR, {type: ErrorTypes.MEDIA_ERROR, details: ErrorDetails.MANIFEST_INCOMPATIBLE_CODECS_ERROR, fatal: true, url: hls.url, reason: 'no level with compatible codecs found in manifest'});\n }\n return;\n }\n\n get levels() {\n return this._levels;\n }\n\n get level() {\n return this._level;\n }\n\n set level(newLevel) {\n if (this._level !== newLevel || this._levels[newLevel].details === undefined) {\n this.setLevelInternal(newLevel);\n }\n }\n\n setLevelInternal(newLevel) {\n // check if level idx is valid\n if (newLevel >= 0 && newLevel < this._levels.length) {\n // stopping live reloading timer if any\n if (this.timer) {\n clearInterval(this.timer);\n this.timer = null;\n }\n this._level = newLevel;\n logger.log(`switching to level ${newLevel}`);\n this.hls.trigger(Event.LEVEL_SWITCH, {level: newLevel});\n var level = this._levels[newLevel];\n // check if we need to load playlist for this level\n if (level.details === undefined || level.details.live === true) {\n // level not retrieved yet, or live playlist we need to (re)load it\n logger.log(`(re)loading playlist for level ${newLevel}`);\n var urlId = level.urlId;\n this.hls.trigger(Event.LEVEL_LOADING, {url: level.url[urlId], level: newLevel, id: urlId});\n }\n } else {\n // invalid level id given, trigger error\n this.hls.trigger(Event.ERROR, {type : ErrorTypes.OTHER_ERROR, details: ErrorDetails.LEVEL_SWITCH_ERROR, level: newLevel, fatal: false, reason: 'invalid level idx'});\n }\n }\n\n get manualLevel() {\n return this._manualLevel;\n }\n\n set manualLevel(newLevel) {\n this._manualLevel = newLevel;\n if (newLevel !== -1) {\n this.level = newLevel;\n }\n }\n\n get firstLevel() {\n return this._firstLevel;\n }\n\n set firstLevel(newLevel) {\n this._firstLevel = newLevel;\n }\n\n get startLevel() {\n if (this._startLevel === undefined) {\n return this._firstLevel;\n } else {\n return this._startLevel;\n }\n }\n\n set startLevel(newLevel) {\n this._startLevel = newLevel;\n }\n\n onError(data) {\n if(data.fatal) {\n return;\n }\n\n var details = data.details, hls = this.hls, levelId, level;\n // try to recover not fatal errors\n switch(details) {\n case ErrorDetails.FRAG_LOAD_ERROR:\n case ErrorDetails.FRAG_LOAD_TIMEOUT:\n case ErrorDetails.FRAG_LOOP_LOADING_ERROR:\n case ErrorDetails.KEY_LOAD_ERROR:\n case ErrorDetails.KEY_LOAD_TIMEOUT:\n levelId = data.frag.level;\n break;\n case ErrorDetails.LEVEL_LOAD_ERROR:\n case ErrorDetails.LEVEL_LOAD_TIMEOUT:\n levelId = data.level;\n break;\n default:\n break;\n }\n /* try to switch to a redundant stream if any available.\n * if no redundant stream available, emergency switch down (if in auto mode and current level not 0)\n * otherwise, we cannot recover this network error ...\n * don't raise FRAG_LOAD_ERROR and FRAG_LOAD_TIMEOUT as fatal, as it is handled by mediaController\n */\n if (levelId !== undefined) {\n level = this._levels[levelId];\n if (level.urlId < (level.url.length - 1)) {\n level.urlId++;\n level.details = undefined;\n logger.warn(`level controller,${details} for level ${levelId}: switching to redundant stream id ${level.urlId}`);\n } else {\n // we could try to recover if in auto mode and current level not lowest level (0)\n let recoverable = ((this._manualLevel === -1) && levelId);\n if (recoverable) {\n logger.warn(`level controller,${details}: emergency switch-down for next fragment`);\n hls.abrController.nextAutoLevel = 0;\n } else if(level && level.details && level.details.live) {\n logger.warn(`level controller,${details} on live stream, discard`);\n // FRAG_LOAD_ERROR and FRAG_LOAD_TIMEOUT are handled by mediaController\n } else if (details !== ErrorDetails.FRAG_LOAD_ERROR && details !== ErrorDetails.FRAG_LOAD_TIMEOUT) {\n logger.error(`cannot recover ${details} error`);\n this._level = undefined;\n // stopping live reloading timer if any\n if (this.timer) {\n clearInterval(this.timer);\n this.timer = null;\n }\n // redispatch same error but with fatal set to true\n data.fatal = true;\n hls.trigger(event, data);\n }\n }\n }\n }\n\n onLevelLoaded(data) {\n // check if current playlist is a live playlist\n if (data.details.live && !this.timer) {\n // if live playlist we will have to reload it periodically\n // set reload period to playlist target duration\n this.timer = setInterval(this.ontick, 1000 * data.details.targetduration);\n }\n if (!data.details.live && this.timer) {\n // playlist is not live and timer is armed : stopping it\n clearInterval(this.timer);\n this.timer = null;\n }\n }\n\n tick() {\n var levelId = this._level;\n if (levelId !== undefined) {\n var level = this._levels[levelId], urlId = level.urlId;\n this.hls.trigger(Event.LEVEL_LOADING, {url: level.url[urlId], level: levelId, id: urlId});\n }\n }\n\n nextLoadLevel() {\n if (this._manualLevel !== -1) {\n return this._manualLevel;\n } else {\n return this.hls.abrController.nextAutoLevel;\n }\n }\n}\n\nexport default LevelController;\n\n", - "/*\n * Stream Controller\n*/\n\nimport Demuxer from '../demux/demuxer';\nimport Event from '../events';\nimport EventHandler from '../event-handler';\nimport {logger} from '../utils/logger';\nimport BinarySearch from '../utils/binary-search';\nimport LevelHelper from '../helper/level-helper';\nimport {ErrorTypes, ErrorDetails} from '../errors';\n\nconst State = {\n ERROR : 'ERROR',\n STARTING : 'STARTING',\n IDLE : 'IDLE',\n PAUSED : 'PAUSED',\n KEY_LOADING : 'KEY_LOADING',\n FRAG_LOADING : 'FRAG_LOADING',\n FRAG_LOADING_WAITING_RETRY : 'FRAG_LOADING_WAITING_RETRY',\n WAITING_LEVEL : 'WAITING_LEVEL',\n PARSING : 'PARSING',\n PARSED : 'PARSED',\n ENDED : 'ENDED'\n};\n\nclass StreamController extends EventHandler {\n\n constructor(hls) {\n super(hls,\n Event.MEDIA_ATTACHED,\n Event.MEDIA_DETACHING,\n Event.MANIFEST_PARSED,\n Event.LEVEL_LOADED,\n Event.KEY_LOADED,\n Event.FRAG_LOADED,\n Event.FRAG_PARSING_INIT_SEGMENT,\n Event.FRAG_PARSING_DATA,\n Event.FRAG_PARSED,\n Event.ERROR,\n Event.BUFFER_APPENDED,\n Event.BUFFER_FLUSHED);\n\n this.config = hls.config;\n this.audioCodecSwap = false;\n this.ticks = 0;\n this.ontick = this.tick.bind(this);\n }\n\n destroy() {\n this.stop();\n EventHandler.prototype.destroy.call(this);\n this.state = State.IDLE;\n }\n\n startLoad() {\n if (this.levels) {\n var media = this.media, lastCurrentTime = this.lastCurrentTime;\n this.stop();\n this.demuxer = new Demuxer(this.hls);\n this.timer = setInterval(this.ontick, 100);\n this.level = -1;\n this.fragLoadError = 0;\n if (media && lastCurrentTime) {\n logger.log(`configure startPosition @${lastCurrentTime}`);\n if (!this.lastPaused) {\n logger.log('resuming video');\n media.play();\n }\n this.state = State.IDLE;\n } else {\n this.lastCurrentTime = this.startPosition ? this.startPosition : 0;\n this.state = State.STARTING;\n }\n this.nextLoadPosition = this.startPosition = this.lastCurrentTime;\n this.tick();\n } else {\n logger.warn('cannot start loading as manifest not parsed yet');\n }\n }\n\n stop() {\n this.bufferRange = [];\n this.stalled = false;\n var frag = this.fragCurrent;\n if (frag) {\n if (frag.loader) {\n frag.loader.abort();\n }\n this.fragCurrent = null;\n }\n this.fragPrevious = null;\n logger.log('trigger BUFFER_RESET');\n this.hls.trigger(Event.BUFFER_RESET);\n if (this.timer) {\n clearInterval(this.timer);\n this.timer = null;\n }\n if (this.demuxer) {\n this.demuxer.destroy();\n this.demuxer = null;\n }\n }\n\n tick() {\n this.ticks++;\n if (this.ticks === 1) {\n this.doTick();\n if (this.ticks > 1) {\n setTimeout(this.tick, 1);\n }\n this.ticks = 0;\n }\n }\n\n doTick() {\n var pos, level, levelDetails, hls = this.hls, config = hls.config;\n //logger.log(this.state);\n switch(this.state) {\n case State.ERROR:\n //don't do anything in error state to avoid breaking further ...\n case State.PAUSED:\n //don't do anything in paused state either ...\n break;\n case State.STARTING:\n // determine load level\n this.startLevel = hls.startLevel;\n if (this.startLevel === -1) {\n // -1 : guess start Level by doing a bitrate test by loading first fragment of lowest quality level\n this.startLevel = 0;\n this.fragBitrateTest = true;\n }\n // set new level to playlist loader : this will trigger start level load\n this.level = hls.nextLoadLevel = this.startLevel;\n this.state = State.WAITING_LEVEL;\n this.loadedmetadata = false;\n break;\n case State.IDLE:\n // if video not attached AND\n // start fragment already requested OR start frag prefetch disable\n // exit loop\n // => if media not attached but start frag prefetch is enabled and start frag not requested yet, we will not exit loop\n if (!this.media &&\n (this.startFragRequested || !config.startFragPrefetch)) {\n break;\n }\n // determine next candidate fragment to be loaded, based on current position and\n // end of buffer position\n // ensure 60s of buffer upfront\n // if we have not yet loaded any fragment, start loading from start position\n if (this.loadedmetadata) {\n pos = this.media.currentTime;\n } else {\n pos = this.nextLoadPosition;\n }\n // determine next load level\n if (this.startFragRequested === false) {\n level = this.startLevel;\n } else {\n // we are not at playback start, get next load level from level Controller\n level = hls.nextLoadLevel;\n }\n var bufferInfo = this.bufferInfo(pos,config.maxBufferHole),\n bufferLen = bufferInfo.len,\n bufferEnd = bufferInfo.end,\n fragPrevious = this.fragPrevious,\n maxBufLen;\n // 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\n if ((this.levels[level]).hasOwnProperty('bitrate')) {\n maxBufLen = Math.max(8 * config.maxBufferSize / this.levels[level].bitrate, config.maxBufferLength);\n maxBufLen = Math.min(maxBufLen, config.maxMaxBufferLength);\n } else {\n maxBufLen = config.maxBufferLength;\n }\n // if buffer length is less than maxBufLen try to load a new fragment\n if (bufferLen < maxBufLen) {\n // set next load level : this will trigger a playlist load if needed\n hls.nextLoadLevel = level;\n this.level = level;\n levelDetails = this.levels[level].details;\n // if level info not retrieved yet, switch state and wait for level retrieval\n // if live playlist, ensure that new playlist has been refreshed to avoid loading/try to load\n // a useless and outdated fragment (that might even introduce load error if it is already out of the live playlist)\n if (typeof levelDetails === 'undefined' || levelDetails.live && this.levelLastLoaded !== level) {\n this.state = State.WAITING_LEVEL;\n break;\n }\n // find fragment index, contiguous with end of buffer position\n let fragments = levelDetails.fragments,\n fragLen = fragments.length,\n start = fragments[0].start,\n end = fragments[fragLen-1].start + fragments[fragLen-1].duration,\n frag;\n\n // in case of live playlist we need to ensure that requested position is not located before playlist start\n if (levelDetails.live) {\n // check if requested position is within seekable boundaries :\n //logger.log(`start/pos/bufEnd/seeking:${start.toFixed(3)}/${pos.toFixed(3)}/${bufferEnd.toFixed(3)}/${this.media.seeking}`);\n let maxLatency = config.liveMaxLatencyDuration !== undefined ? config.liveMaxLatencyDuration : config.liveMaxLatencyDurationCount*levelDetails.targetduration;\n\n if (bufferEnd < Math.max(start, end - maxLatency)) {\n let targetLatency = config.liveSyncDuration !== undefined ? config.liveSyncDuration : config.liveSyncDurationCount * levelDetails.targetduration;\n this.seekAfterBuffered = start + Math.max(0, levelDetails.totalduration - targetLatency);\n 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)}`);\n bufferEnd = this.seekAfterBuffered;\n }\n if (this.startFragRequested && !levelDetails.PTSKnown) {\n /* we are switching level on live playlist, but we don't have any PTS info for that quality level ...\n try to load frag matching with next SN.\n even if SN are not synchronized between playlists, loading this frag will help us\n compute playlist sliding and find the right one after in case it was not the right consecutive one */\n if (fragPrevious) {\n var targetSN = fragPrevious.sn + 1;\n if (targetSN >= levelDetails.startSN && targetSN <= levelDetails.endSN) {\n frag = fragments[targetSN - levelDetails.startSN];\n logger.log(`live playlist, switching playlist, load frag with next SN: ${frag.sn}`);\n }\n }\n if (!frag) {\n /* we have no idea about which fragment should be loaded.\n so let's load mid fragment. it will help computing playlist sliding and find the right one\n */\n frag = fragments[Math.min(fragLen - 1, Math.round(fragLen / 2))];\n logger.log(`live playlist, switching playlist, unknown, load middle frag : ${frag.sn}`);\n }\n }\n } else {\n // VoD playlist: if bufferEnd before start of playlist, load first fragment\n if (bufferEnd < start) {\n frag = fragments[0];\n }\n }\n if (!frag) {\n var foundFrag;\n if (bufferEnd < end) {\n foundFrag = BinarySearch.search(fragments, (candidate) => {\n //logger.log(`level/sn/start/end/bufEnd:${level}/${candidate.sn}/${candidate.start}/${(candidate.start+candidate.duration)}/${bufferEnd}`);\n // offset should be within fragment boundary\n if ((candidate.start + candidate.duration) <= bufferEnd) {\n return 1;\n }\n else if (candidate.start > bufferEnd) {\n return -1;\n }\n return 0;\n });\n } else {\n // reach end of playlist\n foundFrag = fragments[fragLen-1];\n }\n if (foundFrag) {\n frag = foundFrag;\n start = foundFrag.start;\n //logger.log('find SN matching with pos:' + bufferEnd + ':' + frag.sn);\n if (fragPrevious && frag.level === fragPrevious.level && frag.sn === fragPrevious.sn) {\n if (frag.sn < levelDetails.endSN) {\n frag = fragments[frag.sn + 1 - levelDetails.startSN];\n logger.log(`SN just loaded, load next one: ${frag.sn}`);\n } else {\n // have we reached end of VOD playlist ?\n if (!levelDetails.live) {\n this.hls.trigger(Event.BUFFER_EOS);\n this.state = State.ENDED;\n }\n frag = null;\n }\n }\n }\n }\n if(frag) {\n //logger.log(' loading frag ' + i +',pos/bufEnd:' + pos.toFixed(3) + '/' + bufferEnd.toFixed(3));\n if ((frag.decryptdata.uri != null) && (frag.decryptdata.key == null)) {\n logger.log(`Loading key for ${frag.sn} of [${levelDetails.startSN} ,${levelDetails.endSN}],level ${level}`);\n this.state = State.KEY_LOADING;\n hls.trigger(Event.KEY_LOADING, {frag: frag});\n } else {\n logger.log(`Loading ${frag.sn} of [${levelDetails.startSN} ,${levelDetails.endSN}],level ${level}, currentTime:${pos},bufferEnd:${bufferEnd.toFixed(3)}`);\n frag.autoLevel = hls.autoLevelEnabled;\n if (this.levels.length > 1) {\n frag.expectedLen = Math.round(frag.duration * this.levels[level].bitrate / 8);\n frag.trequest = performance.now();\n }\n // ensure that we are not reloading the same fragments in loop ...\n if (this.fragLoadIdx !== undefined) {\n this.fragLoadIdx++;\n } else {\n this.fragLoadIdx = 0;\n }\n if (frag.loadCounter) {\n frag.loadCounter++;\n let maxThreshold = config.fragLoadingLoopThreshold;\n // if this frag has already been loaded 3 times, and if it has been reloaded recently\n if (frag.loadCounter > maxThreshold && (Math.abs(this.fragLoadIdx - frag.loadIdx) < maxThreshold)) {\n hls.trigger(Event.ERROR, {type: ErrorTypes.MEDIA_ERROR, details: ErrorDetails.FRAG_LOOP_LOADING_ERROR, fatal: false, frag: frag});\n return;\n }\n } else {\n frag.loadCounter = 1;\n }\n frag.loadIdx = this.fragLoadIdx;\n this.fragCurrent = frag;\n this.startFragRequested = true;\n hls.trigger(Event.FRAG_LOADING, {frag: frag});\n this.state = State.FRAG_LOADING;\n }\n }\n }\n break;\n case State.WAITING_LEVEL:\n level = this.levels[this.level];\n // check if playlist is already loaded\n if (level && level.details) {\n this.state = State.IDLE;\n }\n break;\n case State.FRAG_LOADING:\n /*\n monitor fragment retrieval time...\n we compute expected time of arrival of the complete fragment.\n we compare it to expected time of buffer starvation\n */\n let v = this.media,frag = this.fragCurrent;\n /* only monitor frag retrieval time if\n (video not paused OR first fragment being loaded) AND autoswitching enabled AND not lowest level AND multiple levels */\n if (v && (!v.paused || this.loadedmetadata === false) && frag.autoLevel && this.level && this.levels.length > 1) {\n var requestDelay = performance.now() - frag.trequest;\n // monitor fragment load progress after half of expected fragment duration,to stabilize bitrate\n if (requestDelay > (500 * frag.duration)) {\n var loadRate = frag.loaded * 1000 / requestDelay; // byte/s\n if (frag.expectedLen < frag.loaded) {\n frag.expectedLen = frag.loaded;\n }\n pos = v.currentTime;\n var fragLoadedDelay = (frag.expectedLen - frag.loaded) / loadRate;\n var bufferStarvationDelay = this.bufferInfo(pos,config.maxBufferHole).end - pos;\n var fragLevelNextLoadedDelay = frag.duration * this.levels[hls.nextLoadLevel].bitrate / (8 * loadRate); //bps/Bps\n /* if we have less than 2 frag duration in buffer and if frag loaded delay is greater than buffer starvation delay\n ... and also bigger than duration needed to load fragment at next level ...*/\n if (bufferStarvationDelay < (2 * frag.duration) && fragLoadedDelay > bufferStarvationDelay && fragLoadedDelay > fragLevelNextLoadedDelay) {\n // abort fragment loading ...\n logger.warn('loading too slow, abort fragment loading');\n logger.log(`fragLoadedDelay/bufferStarvationDelay/fragLevelNextLoadedDelay :${fragLoadedDelay.toFixed(1)}/${bufferStarvationDelay.toFixed(1)}/${fragLevelNextLoadedDelay.toFixed(1)}`);\n //abort fragment loading\n frag.loader.abort();\n hls.trigger(Event.FRAG_LOAD_EMERGENCY_ABORTED, {frag: frag});\n // switch back to IDLE state to request new fragment at lowest level\n this.state = State.IDLE;\n }\n }\n }\n break;\n case State.FRAG_LOADING_WAITING_RETRY:\n var now = performance.now();\n var retryDate = this.retryDate;\n var media = this.media;\n var isSeeking = media && media.seeking;\n // if current time is gt than retryDate, or if media seeking let's switch to IDLE state to retry loading\n if(!retryDate || (now >= retryDate) || isSeeking) {\n logger.log(`mediaController: retryDate reached, switch back to IDLE state`);\n this.state = State.IDLE;\n }\n break;\n case State.PARSING:\n // nothing to do, wait for fragment being parsed\n break;\n case State.PARSED:\n // nothing to do, wait for all buffers to be appended\n break;\n case State.ENDED:\n break;\n default:\n break;\n }\n // check buffer\n this._checkBuffer();\n // check/update current fragment\n this._checkFragmentChanged();\n }\n\n\n bufferInfo(pos,maxHoleDuration) {\n var media = this.media;\n if (media) {\n var vbuffered = media.buffered, buffered = [],i;\n for (i = 0; i < vbuffered.length; i++) {\n buffered.push({start: vbuffered.start(i), end: vbuffered.end(i)});\n }\n return this.bufferedInfo(buffered,pos,maxHoleDuration);\n } else {\n return {len: 0, start: 0, end: 0, nextStart : undefined} ;\n }\n }\n\n bufferedInfo(buffered,pos,maxHoleDuration) {\n var buffered2 = [],\n // bufferStart and bufferEnd are buffer boundaries around current video position\n bufferLen,bufferStart, bufferEnd,bufferStartNext,i;\n // sort on buffer.start/smaller end (IE does not always return sorted buffered range)\n buffered.sort(function (a, b) {\n var diff = a.start - b.start;\n if (diff) {\n return diff;\n } else {\n return b.end - a.end;\n }\n });\n // there might be some small holes between buffer time range\n // consider that holes smaller than maxHoleDuration are irrelevant and build another\n // buffer time range representations that discards those holes\n for (i = 0; i < buffered.length; i++) {\n var buf2len = buffered2.length;\n if(buf2len) {\n var buf2end = buffered2[buf2len - 1].end;\n // if small hole (value between 0 or maxHoleDuration ) or overlapping (negative)\n if((buffered[i].start - buf2end) < maxHoleDuration) {\n // merge overlapping time ranges\n // update lastRange.end only if smaller than item.end\n // e.g. [ 1, 15] with [ 2,8] => [ 1,15] (no need to modify lastRange.end)\n // whereas [ 1, 8] with [ 2,15] => [ 1,15] ( lastRange should switch from [1,8] to [1,15])\n if(buffered[i].end > buf2end) {\n buffered2[buf2len - 1].end = buffered[i].end;\n }\n } else {\n // big hole\n buffered2.push(buffered[i]);\n }\n } else {\n // first value\n buffered2.push(buffered[i]);\n }\n }\n for (i = 0, bufferLen = 0, bufferStart = bufferEnd = pos; i < buffered2.length; i++) {\n var start = buffered2[i].start,\n end = buffered2[i].end;\n //logger.log('buf start/end:' + buffered.start(i) + '/' + buffered.end(i));\n if ((pos + maxHoleDuration) >= start && pos < end) {\n // play position is inside this buffer TimeRange, retrieve end of buffer position and buffer length\n bufferStart = start;\n bufferEnd = end;\n bufferLen = bufferEnd - pos;\n } else if ((pos + maxHoleDuration) < start) {\n bufferStartNext = start;\n break;\n }\n }\n return {len: bufferLen, start: bufferStart, end: bufferEnd, nextStart : bufferStartNext};\n }\n\n getBufferRange(position) {\n var i, range,\n bufferRange = this.bufferRange;\n if (bufferRange) {\n for (i = bufferRange.length - 1; i >=0; i--) {\n range = bufferRange[i];\n if (position >= range.start && position <= range.end) {\n return range;\n }\n }\n }\n return null;\n }\n\n get currentLevel() {\n if (this.media) {\n var range = this.getBufferRange(this.media.currentTime);\n if (range) {\n return range.frag.level;\n }\n }\n return -1;\n }\n\n get nextBufferRange() {\n if (this.media) {\n // first get end range of current fragment\n return this.followingBufferRange(this.getBufferRange(this.media.currentTime));\n } else {\n return null;\n }\n }\n\n followingBufferRange(range) {\n if (range) {\n // try to get range of next fragment (500ms after this range)\n return this.getBufferRange(range.end + 0.5);\n }\n return null;\n }\n\n get nextLevel() {\n var range = this.nextBufferRange;\n if (range) {\n return range.frag.level;\n } else {\n return -1;\n }\n }\n\n isBuffered(position) {\n var v = this.media, buffered = v.buffered;\n for (var i = 0; i < buffered.length; i++) {\n if (position >= buffered.start(i) && position <= buffered.end(i)) {\n return true;\n }\n }\n return false;\n }\n\n _checkFragmentChanged() {\n var rangeCurrent, currentTime, video = this.media;\n if (video && video.seeking === false) {\n currentTime = video.currentTime;\n /* if video element is in seeked state, currentTime can only increase.\n (assuming that playback rate is positive ...)\n As sometimes currentTime jumps back to zero after a\n media decode error, check this, to avoid seeking back to\n wrong position after a media decode error\n */\n if(currentTime > video.playbackRate*this.lastCurrentTime) {\n this.lastCurrentTime = currentTime;\n }\n if (this.isBuffered(currentTime)) {\n rangeCurrent = this.getBufferRange(currentTime);\n } else if (this.isBuffered(currentTime + 0.1)) {\n /* ensure that FRAG_CHANGED event is triggered at startup,\n when first video frame is displayed and playback is paused.\n add a tolerance of 100ms, in case current position is not buffered,\n check if current pos+100ms is buffered and use that buffer range\n for FRAG_CHANGED event reporting */\n rangeCurrent = this.getBufferRange(currentTime + 0.1);\n }\n if (rangeCurrent) {\n var fragPlaying = rangeCurrent.frag;\n if (fragPlaying !== this.fragPlaying) {\n this.fragPlaying = fragPlaying;\n this.hls.trigger(Event.FRAG_CHANGED, {frag: fragPlaying});\n }\n }\n }\n }\n\n /*\n on immediate level switch :\n - pause playback if playing\n - cancel any pending load request\n - and trigger a buffer flush\n */\n immediateLevelSwitch() {\n logger.log('immediateLevelSwitch');\n if (!this.immediateSwitch) {\n this.immediateSwitch = true;\n this.previouslyPaused = this.media.paused;\n this.media.pause();\n }\n var fragCurrent = this.fragCurrent;\n if (fragCurrent && fragCurrent.loader) {\n fragCurrent.loader.abort();\n }\n this.fragCurrent = null;\n // flush everything\n this.hls.trigger(Event.BUFFER_FLUSHING, {startOffset: 0, endOffset: Number.POSITIVE_INFINITY});\n this.state = State.PAUSED;\n // increase fragment load Index to avoid frag loop loading error after buffer flush\n this.fragLoadIdx += 2 * this.config.fragLoadingLoopThreshold;\n // speed up switching, trigger timer function\n this.tick();\n }\n\n /*\n on immediate level switch end, after new fragment has been buffered :\n - nudge video decoder by slightly adjusting video currentTime\n - resume the playback if needed\n */\n immediateLevelSwitchEnd() {\n this.immediateSwitch = false;\n this.media.currentTime -= 0.0001;\n if (!this.previouslyPaused) {\n this.media.play();\n }\n }\n\n nextLevelSwitch() {\n /* try to switch ASAP without breaking video playback :\n in order to ensure smooth but quick level switching,\n we need to find the next flushable buffer range\n we should take into account new segment fetch time\n */\n var fetchdelay, currentRange, nextRange;\n currentRange = this.getBufferRange(this.media.currentTime);\n if (currentRange && currentRange.start > 1) {\n // flush buffer preceding current fragment (flush until current fragment start offset)\n // minus 1s to avoid video freezing, that could happen if we flush keyframe of current video ...\n this.hls.trigger(Event.BUFFER_FLUSHING, {startOffset: 0, endOffset: currentRange.start - 1});\n this.state = State.PAUSED;\n }\n if (!this.media.paused) {\n // add a safety delay of 1s\n var nextLevelId = this.hls.nextLoadLevel,nextLevel = this.levels[nextLevelId], fragLastKbps = this.fragLastKbps;\n if (fragLastKbps && this.fragCurrent) {\n fetchdelay = this.fragCurrent.duration * nextLevel.bitrate / (1000 * fragLastKbps) + 1;\n } else {\n fetchdelay = 0;\n }\n } else {\n fetchdelay = 0;\n }\n //logger.log('fetchdelay:'+fetchdelay);\n // find buffer range that will be reached once new fragment will be fetched\n nextRange = this.getBufferRange(this.media.currentTime + fetchdelay);\n if (nextRange) {\n // we can flush buffer range following this one without stalling playback\n nextRange = this.followingBufferRange(nextRange);\n if (nextRange) {\n // flush position is the start position of this new buffer\n this.hls.trigger(Event.BUFFER_FLUSHING, {startOffset: nextRange.start, endOffset: Number.POSITIVE_INFINITY});\n this.state = State.PAUSED;\n // if we are here, we can also cancel any loading/demuxing in progress, as they are useless\n var fragCurrent = this.fragCurrent;\n if (fragCurrent && fragCurrent.loader) {\n fragCurrent.loader.abort();\n }\n this.fragCurrent = null;\n // increase fragment load Index to avoid frag loop loading error after buffer flush\n this.fragLoadIdx += 2 * this.config.fragLoadingLoopThreshold;\n }\n }\n }\n\n onMediaAttached(data) {\n var media = this.media = data.media;\n this.onvseeking = this.onMediaSeeking.bind(this);\n this.onvseeked = this.onMediaSeeked.bind(this);\n this.onvended = this.onMediaEnded.bind(this);\n media.addEventListener('seeking', this.onvseeking);\n media.addEventListener('seeked', this.onvseeked);\n media.addEventListener('ended', this.onvended);\n if(this.levels && this.config.autoStartLoad) {\n this.startLoad();\n }\n }\n\n onMediaDetaching() {\n var media = this.media;\n if (media && media.ended) {\n logger.log('MSE detaching and video ended, reset startPosition');\n this.startPosition = this.lastCurrentTime = 0;\n }\n\n // reset fragment loading counter on MSE detaching to avoid reporting FRAG_LOOP_LOADING_ERROR after error recovery\n var levels = this.levels;\n if (levels) {\n // reset fragment load counter\n levels.forEach(level => {\n if(level.details) {\n level.details.fragments.forEach(fragment => {\n fragment.loadCounter = undefined;\n });\n }\n });\n }\n // remove video listeners\n if (media) {\n media.removeEventListener('seeking', this.onvseeking);\n media.removeEventListener('seeked', this.onvseeked);\n media.removeEventListener('ended', this.onvended);\n this.onvseeking = this.onvseeked = this.onvended = null;\n }\n this.media = null;\n this.loadedmetadata = false;\n this.stop();\n }\n\n onMediaSeeking() {\n if (this.state === State.FRAG_LOADING) {\n // check if currently loaded fragment is inside buffer.\n //if outside, cancel fragment loading, otherwise do nothing\n if (this.bufferInfo(this.media.currentTime,this.config.maxBufferHole).len === 0) {\n logger.log('seeking outside of buffer while fragment load in progress, cancel fragment load');\n var fragCurrent = this.fragCurrent;\n if (fragCurrent) {\n if (fragCurrent.loader) {\n fragCurrent.loader.abort();\n }\n this.fragCurrent = null;\n }\n this.fragPrevious = null;\n // switch to IDLE state to load new fragment\n this.state = State.IDLE;\n }\n } else if (this.state === State.ENDED) {\n // switch to IDLE state to check for potential new fragment\n this.state = State.IDLE;\n }\n if (this.media) {\n this.lastCurrentTime = this.media.currentTime;\n }\n // avoid reporting fragment loop loading error in case user is seeking several times on same position\n if (this.fragLoadIdx !== undefined) {\n this.fragLoadIdx += 2 * this.config.fragLoadingLoopThreshold;\n }\n // tick to speed up processing\n this.tick();\n }\n\n onMediaSeeked() {\n // tick to speed up FRAGMENT_PLAYING triggering\n this.tick();\n }\n\n onMediaEnded() {\n logger.log('media ended');\n // reset startPosition and lastCurrentTime to restart playback @ stream beginning\n this.startPosition = this.lastCurrentTime = 0;\n }\n\n\n onManifestParsed(data) {\n var aac = false, heaac = false, codec;\n data.levels.forEach(level => {\n // detect if we have different kind of audio codecs used amongst playlists\n codec = level.audioCodec;\n if (codec) {\n if (codec.indexOf('mp4a.40.2') !== -1) {\n aac = true;\n }\n if (codec.indexOf('mp4a.40.5') !== -1) {\n heaac = true;\n }\n }\n });\n this.audioCodecSwitch = (aac && heaac);\n if (this.audioCodecSwitch) {\n logger.log('both AAC/HE-AAC audio found in levels; declaring level codec as HE-AAC');\n }\n this.levels = data.levels;\n this.startLevelLoaded = false;\n this.startFragRequested = false;\n if (this.config.autoStartLoad) {\n this.startLoad();\n }\n }\n\n onLevelLoaded(data) {\n var newDetails = data.details,\n newLevelId = data.level,\n curLevel = this.levels[newLevelId],\n duration = newDetails.totalduration,\n sliding = 0;\n\n logger.log(`level ${newLevelId} loaded [${newDetails.startSN},${newDetails.endSN}],duration:${duration}`);\n this.levelLastLoaded = newLevelId;\n\n if (newDetails.live) {\n var curDetails = curLevel.details;\n if (curDetails) {\n // we already have details for that level, merge them\n LevelHelper.mergeDetails(curDetails,newDetails);\n sliding = newDetails.fragments[0].start;\n if (newDetails.PTSKnown) {\n logger.log(`live playlist sliding:${sliding.toFixed(3)}`);\n } else {\n logger.log('live playlist - outdated PTS, unknown sliding');\n }\n } else {\n newDetails.PTSKnown = false;\n logger.log('live playlist - first load, unknown sliding');\n }\n } else {\n newDetails.PTSKnown = false;\n }\n // override level info\n curLevel.details = newDetails;\n this.hls.trigger(Event.LEVEL_UPDATED, { details: newDetails, level: newLevelId });\n\n // compute start position\n if (this.startFragRequested === false) {\n // if live playlist, set start position to be fragment N-this.config.liveSyncDurationCount (usually 3)\n if (newDetails.live) {\n let targetLatency = this.config.liveSyncDuration !== undefined ? this.config.liveSyncDuration : this.config.liveSyncDurationCount * newDetails.targetduration;\n this.startPosition = Math.max(0, sliding + duration - targetLatency);\n }\n this.nextLoadPosition = this.startPosition;\n }\n // only switch batck to IDLE state if we were waiting for level to start downloading a new fragment\n if (this.state === State.WAITING_LEVEL) {\n this.state = State.IDLE;\n }\n //trigger handler right now\n this.tick();\n }\n\n onKeyLoaded() {\n if (this.state === State.KEY_LOADING) {\n this.state = State.IDLE;\n this.tick();\n }\n }\n\n onFragLoaded(data) {\n var fragCurrent = this.fragCurrent;\n if (this.state === State.FRAG_LOADING &&\n fragCurrent &&\n data.frag.level === fragCurrent.level &&\n data.frag.sn === fragCurrent.sn) {\n if (this.fragBitrateTest === true) {\n // switch back to IDLE state ... we just loaded a fragment to determine adequate start bitrate and initialize autoswitch algo\n this.state = State.IDLE;\n this.fragBitrateTest = false;\n data.stats.tparsed = data.stats.tbuffered = performance.now();\n this.hls.trigger(Event.FRAG_BUFFERED, {stats: data.stats, frag: fragCurrent});\n } else {\n this.state = State.PARSING;\n // transmux the MPEG-TS data to ISO-BMFF segments\n this.stats = data.stats;\n var currentLevel = this.levels[this.level],\n details = currentLevel.details,\n duration = details.totalduration,\n start = fragCurrent.start,\n level = fragCurrent.level,\n sn = fragCurrent.sn,\n audioCodec = currentLevel.audioCodec || this.config.defaultAudioCodec;\n if(this.audioCodecSwap) {\n logger.log('swapping playlist audio codec');\n if(audioCodec === undefined) {\n audioCodec = this.lastAudioCodec;\n }\n if(audioCodec) {\n if(audioCodec.indexOf('mp4a.40.5') !==-1) {\n audioCodec = 'mp4a.40.2';\n } else {\n audioCodec = 'mp4a.40.5';\n }\n }\n }\n this.pendingAppending = 0;\n logger.log(`Demuxing ${sn} of [${details.startSN} ,${details.endSN}],level ${level}`);\n this.demuxer.push(data.payload, audioCodec, currentLevel.videoCodec, start, fragCurrent.cc, level, sn, duration, fragCurrent.decryptdata);\n }\n }\n this.fragLoadError = 0;\n }\n\n onFragParsingInitSegment(data) {\n if (this.state === State.PARSING) {\n var tracks = data.tracks, trackName, track;\n\n // include levelCodec in audio and video tracks\n track = tracks.audio;\n if(track) {\n var audioCodec = this.levels[this.level].audioCodec,\n ua = navigator.userAgent.toLowerCase();\n if(audioCodec && this.audioCodecSwap) {\n logger.log('swapping playlist audio codec');\n if(audioCodec.indexOf('mp4a.40.5') !==-1) {\n audioCodec = 'mp4a.40.2';\n } else {\n audioCodec = 'mp4a.40.5';\n }\n }\n // in case AAC and HE-AAC audio codecs are signalled in manifest\n // force HE-AAC , as it seems that most browsers prefers that way,\n // except for mono streams OR on FF\n // these conditions might need to be reviewed ...\n if (this.audioCodecSwitch) {\n // don't force HE-AAC if mono stream\n if(track.metadata.channelCount !== 1 &&\n // don't force HE-AAC if firefox\n ua.indexOf('firefox') === -1) {\n audioCodec = 'mp4a.40.5';\n }\n }\n // HE-AAC is broken on Android, always signal audio codec as AAC even if variant manifest states otherwise\n if(ua.indexOf('android') !== -1) {\n audioCodec = 'mp4a.40.2';\n logger.log(`Android: force audio codec to` + audioCodec);\n }\n track.levelCodec = audioCodec;\n }\n track = tracks.video;\n if(track) {\n track.levelCodec = this.levels[this.level].videoCodec;\n }\n\n // if remuxer specify that a unique track needs to generated,\n // let's merge all tracks together\n if (data.unique) {\n var mergedTrack = {\n codec : '',\n levelCodec : ''\n };\n for (trackName in data.tracks) {\n track = tracks[trackName];\n mergedTrack.container = track.container;\n if (mergedTrack.codec) {\n mergedTrack.codec += ',';\n mergedTrack.levelCodec += ',';\n }\n if(track.codec) {\n mergedTrack.codec += track.codec;\n }\n if (track.levelCodec) {\n mergedTrack.levelCodec += track.levelCodec;\n }\n }\n tracks = { audiovideo : mergedTrack };\n }\n this.hls.trigger(Event.BUFFER_CODECS,tracks);\n // loop through tracks that are going to be provided to bufferController\n for (trackName in tracks) {\n track = tracks[trackName];\n logger.log(`track:${trackName},container:${track.container},codecs[level/parsed]=[${track.levelCodec}/${track.codec}]`);\n var initSegment = track.initSegment;\n if (initSegment) {\n this.pendingAppending++;\n this.hls.trigger(Event.BUFFER_APPENDING, {type: trackName, data: initSegment});\n }\n }\n //trigger handler right now\n this.tick();\n }\n }\n\n onFragParsingData(data) {\n if (this.state === State.PARSING) {\n this.tparse2 = Date.now();\n var level = this.levels[this.level],\n frag = this.fragCurrent;\n\n 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}`);\n\n var drift = LevelHelper.updateFragPTS(level.details,frag.sn,data.startPTS,data.endPTS),\n hls = this.hls;\n hls.trigger(Event.LEVEL_PTS_UPDATED, {details: level.details, level: this.level, drift: drift});\n\n [data.data1, data.data2].forEach(buffer => {\n if (buffer) {\n this.pendingAppending++;\n hls.trigger(Event.BUFFER_APPENDING, {type: data.type, data: buffer});\n }\n });\n\n this.nextLoadPosition = data.endPTS;\n this.bufferRange.push({type: data.type, start: data.startPTS, end: data.endPTS, frag: frag});\n\n //trigger handler right now\n this.tick();\n } else {\n logger.warn(`not in PARSING state but ${this.state}, ignoring FRAG_PARSING_DATA event`);\n }\n }\n\n onFragParsed() {\n if (this.state === State.PARSING) {\n this.stats.tparsed = performance.now();\n this.state = State.PARSED;\n this._checkAppendedParsed();\n }\n }\n\n onBufferAppended() {\n switch (this.state) {\n case State.PARSING:\n case State.PARSED:\n this.pendingAppending--;\n this._checkAppendedParsed();\n break;\n default:\n break;\n }\n }\n\n _checkAppendedParsed() {\n //trigger handler right now\n if (this.state === State.PARSED && this.pendingAppending === 0) {\n var frag = this.fragCurrent, stats = this.stats;\n if (frag) {\n this.fragPrevious = frag;\n stats.tbuffered = performance.now();\n this.fragLastKbps = Math.round(8 * stats.length / (stats.tbuffered - stats.tfirst));\n this.hls.trigger(Event.FRAG_BUFFERED, {stats: stats, frag: frag});\n logger.log(`media buffered : ${this.timeRangesToString(this.media.buffered)}`);\n this.state = State.IDLE;\n }\n this.tick();\n }\n }\n\n onError(data) {\n switch(data.details) {\n case ErrorDetails.FRAG_LOAD_ERROR:\n case ErrorDetails.FRAG_LOAD_TIMEOUT:\n if(!data.fatal) {\n var loadError = this.fragLoadError;\n if(loadError) {\n loadError++;\n } else {\n loadError=1;\n }\n if (loadError <= this.config.fragLoadingMaxRetry) {\n this.fragLoadError = loadError;\n // reset load counter to avoid frag loop loading error\n data.frag.loadCounter = 0;\n // exponential backoff capped to 64s\n var delay = Math.min(Math.pow(2,loadError-1)*this.config.fragLoadingRetryDelay,64000);\n logger.warn(`mediaController: frag loading failed, retry in ${delay} ms`);\n this.retryDate = performance.now() + delay;\n // retry loading state\n this.state = State.FRAG_LOADING_WAITING_RETRY;\n } else {\n logger.error(`mediaController: ${data.details} reaches max retry, redispatch as fatal ...`);\n // redispatch same error but with fatal set to true\n data.fatal = true;\n this.hls.trigger(Event.ERROR, data);\n this.state = State.ERROR;\n }\n }\n break;\n case ErrorDetails.FRAG_LOOP_LOADING_ERROR:\n case ErrorDetails.LEVEL_LOAD_ERROR:\n case ErrorDetails.LEVEL_LOAD_TIMEOUT:\n case ErrorDetails.KEY_LOAD_ERROR:\n case ErrorDetails.KEY_LOAD_TIMEOUT:\n // if fatal error, stop processing, otherwise move to IDLE to retry loading\n logger.warn(`mediaController: ${data.details} while loading frag,switch to ${data.fatal ? 'ERROR' : 'IDLE'} state ...`);\n this.state = data.fatal ? State.ERROR : State.IDLE;\n break;\n case ErrorDetails.BUFFER_FULL_ERROR:\n // trigger a smooth level switch to empty buffers\n // also reduce max buffer length as it might be too high. we do this to avoid loop flushing ...\n this.config.maxMaxBufferLength/=2;\n logger.warn(`reduce max buffer length to ${this.config.maxMaxBufferLength}s and trigger a nextLevelSwitch to flush old buffer and fix QuotaExceededError`);\n this.nextLevelSwitch();\n break;\n default:\n break;\n }\n }\n\n_checkBuffer() {\n var media = this.media;\n if(media) {\n // compare readyState\n var readyState = media.readyState;\n // if ready state different from HAVE_NOTHING (numeric value 0), we are allowed to seek\n if(readyState) {\n var targetSeekPosition, currentTime;\n // if seek after buffered defined, let's seek if within acceptable range\n var seekAfterBuffered = this.seekAfterBuffered;\n if(seekAfterBuffered) {\n if(media.duration >= seekAfterBuffered) {\n targetSeekPosition = seekAfterBuffered;\n this.seekAfterBuffered = undefined;\n }\n } else {\n currentTime = media.currentTime;\n var loadedmetadata = this.loadedmetadata;\n\n // adjust currentTime to start position on loaded metadata\n if(!loadedmetadata && media.buffered.length) {\n this.loadedmetadata = true;\n // only adjust currentTime if not equal to 0\n if (!currentTime && currentTime !== this.startPosition) {\n targetSeekPosition = this.startPosition;\n }\n }\n }\n if (targetSeekPosition) {\n currentTime = targetSeekPosition;\n logger.log(`target seek position:${targetSeekPosition}`);\n }\n var bufferInfo = this.bufferInfo(currentTime,0),\n expectedPlaying = !(media.paused || media.ended || media.seeking || readyState < 2),\n jumpThreshold = 0.4, // tolerance needed as some browsers stalls playback before reaching buffered range end\n playheadMoving = currentTime > media.playbackRate*this.lastCurrentTime;\n\n if (this.stalled && playheadMoving) {\n this.stalled = false;\n }\n // check buffer upfront\n // if less than 200ms is buffered, and media is expected to play but playhead is not moving,\n // and we have a new buffer range available upfront, let's seek to that one\n if(bufferInfo.len <= jumpThreshold) {\n if(playheadMoving || !expectedPlaying) {\n // playhead moving or media not playing\n jumpThreshold = 0;\n } else {\n // playhead not moving AND media expected to play\n logger.log(`playback seems stuck @${currentTime}`);\n if(!this.stalled) {\n this.hls.trigger(Event.ERROR, {type: ErrorTypes.MEDIA_ERROR, details: ErrorDetails.BUFFER_STALLED_ERROR, fatal: false});\n this.stalled = true;\n }\n }\n // if we are below threshold, try to jump if next buffer range is close\n if(bufferInfo.len <= jumpThreshold) {\n // no buffer available @ currentTime, check if next buffer is close (within a config.maxSeekHole second range)\n var nextBufferStart = bufferInfo.nextStart, delta = nextBufferStart-currentTime;\n if(nextBufferStart &&\n (delta < this.config.maxSeekHole) &&\n (delta > 0) &&\n !media.seeking) {\n // next buffer is close ! adjust currentTime to nextBufferStart\n // this will ensure effective video decoding\n logger.log(`adjust currentTime from ${media.currentTime} to next buffered @ ${nextBufferStart}`);\n media.currentTime = nextBufferStart;\n this.hls.trigger(Event.ERROR, {type: ErrorTypes.MEDIA_ERROR, details: ErrorDetails.BUFFER_SEEK_OVER_HOLE, fatal: false});\n }\n }\n } else {\n if (targetSeekPosition && media.currentTime !== targetSeekPosition) {\n logger.log(`adjust currentTime from ${media.currentTime} to ${targetSeekPosition}`);\n media.currentTime = targetSeekPosition;\n }\n }\n }\n }\n }\n\n onBufferFlushed() {\n /* after successful buffer flushing, rebuild buffer Range array\n loop through existing buffer range and check if\n corresponding range is still buffered. only push to new array already buffered range\n */\n var newRange = [],range,i;\n for (i = 0; i < this.bufferRange.length; i++) {\n range = this.bufferRange[i];\n if (this.isBuffered((range.start + range.end) / 2)) {\n newRange.push(range);\n }\n }\n this.bufferRange = newRange;\n\n // handle end of immediate switching if needed\n if (this.immediateSwitch) {\n this.immediateLevelSwitchEnd();\n }\n // move to IDLE once flush complete. this should trigger new fragment loading\n this.state = State.IDLE;\n // reset reference to frag\n this.fragPrevious = null;\n }\n\n swapAudioCodec() {\n this.audioCodecSwap = !this.audioCodecSwap;\n }\n\n timeRangesToString(r) {\n var log = '', len = r.length;\n for (var i=0; i {\n if(level.videoCodec) {\n videoCodecFound = true;\n }\n if(level.audioCodec) {\n audioCodecFound = true;\n }\n var redundantLevelId = bitrateSet[level.bitrate];\n if (redundantLevelId === undefined) {\n bitrateSet[level.bitrate] = levels0.length;\n level.url = [level.url];\n level.urlId = 0;\n levels0.push(level);\n } else {\n levels0[redundantLevelId].url.push(level.url);\n }\n });\n\n // remove audio-only level if we also have levels with audio+video codecs signalled\n if(videoCodecFound && audioCodecFound) {\n levels0.forEach(level => {\n if(level.videoCodec) {\n levels.push(level);\n }\n });\n } else {\n levels = levels0;\n }\n\n // only keep level with supported audio/video codecs\n levels = levels.filter(function(level) {\n var checkSupportedAudio = function(codec) { return MediaSource.isTypeSupported(`audio/mp4;codecs=${codec}`);};\n var checkSupportedVideo = function(codec) { return MediaSource.isTypeSupported(`video/mp4;codecs=${codec}`);};\n var audioCodec = level.audioCodec, videoCodec = level.videoCodec;\n\n return (!audioCodec || checkSupportedAudio(audioCodec)) &&\n (!videoCodec || checkSupportedVideo(videoCodec));\n });\n\n if(levels.length) {\n // start bitrate is the first bitrate of the manifest\n bitrateStart = levels[0].bitrate;\n // sort level on bitrate\n levels.sort(function (a, b) {\n return a.bitrate - b.bitrate;\n });\n this._levels = levels;\n // find index of first level in sorted levels\n for (i = 0; i < levels.length; i++) {\n if (levels[i].bitrate === bitrateStart) {\n this._firstLevel = i;\n logger.log(`manifest loaded,${levels.length} level(s) found, first bitrate:${bitrateStart}`);\n break;\n }\n }\n hls.trigger(Event.MANIFEST_PARSED, {levels: this._levels, firstLevel: this._firstLevel, stats: data.stats});\n } else {\n hls.trigger(Event.ERROR, {type: ErrorTypes.MEDIA_ERROR, details: ErrorDetails.MANIFEST_INCOMPATIBLE_CODECS_ERROR, fatal: true, url: hls.url, reason: 'no level with compatible codecs found in manifest'});\n }\n return;\n }\n\n get levels() {\n return this._levels;\n }\n\n get level() {\n return this._level;\n }\n\n set level(newLevel) {\n if (this._level !== newLevel || this._levels[newLevel].details === undefined) {\n this.setLevelInternal(newLevel);\n }\n }\n\n setLevelInternal(newLevel) {\n // check if level idx is valid\n if (newLevel >= 0 && newLevel < this._levels.length) {\n // stopping live reloading timer if any\n if (this.timer) {\n clearInterval(this.timer);\n this.timer = null;\n }\n this._level = newLevel;\n logger.log(`switching to level ${newLevel}`);\n this.hls.trigger(Event.LEVEL_SWITCH, {level: newLevel});\n var level = this._levels[newLevel];\n // check if we need to load playlist for this level\n if (level.details === undefined || level.details.live === true) {\n // level not retrieved yet, or live playlist we need to (re)load it\n logger.log(`(re)loading playlist for level ${newLevel}`);\n var urlId = level.urlId;\n this.hls.trigger(Event.LEVEL_LOADING, {url: level.url[urlId], level: newLevel, id: urlId});\n }\n } else {\n // invalid level id given, trigger error\n this.hls.trigger(Event.ERROR, {type : ErrorTypes.OTHER_ERROR, details: ErrorDetails.LEVEL_SWITCH_ERROR, level: newLevel, fatal: false, reason: 'invalid level idx'});\n }\n }\n\n get manualLevel() {\n return this._manualLevel;\n }\n\n set manualLevel(newLevel) {\n this._manualLevel = newLevel;\n if (newLevel !== -1) {\n this.level = newLevel;\n }\n }\n\n get firstLevel() {\n return this._firstLevel;\n }\n\n set firstLevel(newLevel) {\n this._firstLevel = newLevel;\n }\n\n get startLevel() {\n if (this._startLevel === undefined) {\n return this._firstLevel;\n } else {\n return this._startLevel;\n }\n }\n\n set startLevel(newLevel) {\n this._startLevel = newLevel;\n }\n\n onError(data) {\n if(data.fatal) {\n return;\n }\n\n var details = data.details, hls = this.hls, levelId, level;\n // try to recover not fatal errors\n switch(details) {\n case ErrorDetails.FRAG_LOAD_ERROR:\n case ErrorDetails.FRAG_LOAD_TIMEOUT:\n case ErrorDetails.FRAG_LOOP_LOADING_ERROR:\n case ErrorDetails.KEY_LOAD_ERROR:\n case ErrorDetails.KEY_LOAD_TIMEOUT:\n levelId = data.frag.level;\n break;\n case ErrorDetails.LEVEL_LOAD_ERROR:\n case ErrorDetails.LEVEL_LOAD_TIMEOUT:\n levelId = data.level;\n break;\n default:\n break;\n }\n /* try to switch to a redundant stream if any available.\n * if no redundant stream available, emergency switch down (if in auto mode and current level not 0)\n * otherwise, we cannot recover this network error ...\n * don't raise FRAG_LOAD_ERROR and FRAG_LOAD_TIMEOUT as fatal, as it is handled by mediaController\n */\n if (levelId !== undefined) {\n level = this._levels[levelId];\n if (level.urlId < (level.url.length - 1)) {\n level.urlId++;\n level.details = undefined;\n logger.warn(`level controller,${details} for level ${levelId}: switching to redundant stream id ${level.urlId}`);\n } else {\n // we could try to recover if in auto mode and current level not lowest level (0)\n let recoverable = ((this._manualLevel === -1) && levelId);\n if (recoverable) {\n logger.warn(`level controller,${details}: emergency switch-down for next fragment`);\n hls.abrController.nextAutoLevel = 0;\n } else if(level && level.details && level.details.live) {\n logger.warn(`level controller,${details} on live stream, discard`);\n // FRAG_LOAD_ERROR and FRAG_LOAD_TIMEOUT are handled by mediaController\n } else if (details !== ErrorDetails.FRAG_LOAD_ERROR && details !== ErrorDetails.FRAG_LOAD_TIMEOUT) {\n logger.error(`cannot recover ${details} error`);\n this._level = undefined;\n // stopping live reloading timer if any\n if (this.timer) {\n clearInterval(this.timer);\n this.timer = null;\n }\n // redispatch same error but with fatal set to true\n data.fatal = true;\n hls.trigger(event, data);\n }\n }\n }\n }\n\n onLevelLoaded(data) {\n // check if current playlist is a live playlist\n if (data.details.live && !this.timer) {\n // if live playlist we will have to reload it periodically\n // set reload period to playlist target duration\n this.timer = setInterval(this.ontick, 1000 * data.details.targetduration);\n }\n if (!data.details.live && this.timer) {\n // playlist is not live and timer is armed : stopping it\n clearInterval(this.timer);\n this.timer = null;\n }\n }\n\n tick() {\n var levelId = this._level;\n if (levelId !== undefined) {\n var level = this._levels[levelId], urlId = level.urlId;\n this.hls.trigger(Event.LEVEL_LOADING, {url: level.url[urlId], level: levelId, id: urlId});\n }\n }\n\n get nextLoadLevel() {\n if (this._manualLevel !== -1) {\n return this._manualLevel;\n } else {\n return this.hls.abrController.nextAutoLevel;\n }\n }\n\n set nextLoadLevel(nextLevel) {\n this.level = nextLevel;\n if (this._manualLevel === -1) {\n this.hls.abrController.nextAutoLevel = nextLevel;\n }\n }\n}\n\nexport default LevelController;\n\n", + "/*\n * Stream Controller\n*/\n\nimport Demuxer from '../demux/demuxer';\nimport Event from '../events';\nimport EventHandler from '../event-handler';\nimport {logger} from '../utils/logger';\nimport BinarySearch from '../utils/binary-search';\nimport LevelHelper from '../helper/level-helper';\nimport {ErrorTypes, ErrorDetails} from '../errors';\n\nconst State = {\n ERROR : 'ERROR',\n STARTING : 'STARTING',\n IDLE : 'IDLE',\n PAUSED : 'PAUSED',\n KEY_LOADING : 'KEY_LOADING',\n FRAG_LOADING : 'FRAG_LOADING',\n FRAG_LOADING_WAITING_RETRY : 'FRAG_LOADING_WAITING_RETRY',\n WAITING_LEVEL : 'WAITING_LEVEL',\n PARSING : 'PARSING',\n PARSED : 'PARSED',\n ENDED : 'ENDED'\n};\n\nclass StreamController extends EventHandler {\n\n constructor(hls) {\n super(hls,\n Event.MEDIA_ATTACHED,\n Event.MEDIA_DETACHING,\n Event.MANIFEST_PARSED,\n Event.LEVEL_LOADED,\n Event.KEY_LOADED,\n Event.FRAG_LOADED,\n Event.FRAG_PARSING_INIT_SEGMENT,\n Event.FRAG_PARSING_DATA,\n Event.FRAG_PARSED,\n Event.ERROR,\n Event.BUFFER_APPENDED,\n Event.BUFFER_FLUSHED);\n\n this.config = hls.config;\n this.audioCodecSwap = false;\n this.ticks = 0;\n this.ontick = this.tick.bind(this);\n }\n\n destroy() {\n this.stop();\n EventHandler.prototype.destroy.call(this);\n this.state = State.IDLE;\n }\n\n startLoad() {\n if (this.levels) {\n var media = this.media, lastCurrentTime = this.lastCurrentTime;\n this.stop();\n this.demuxer = new Demuxer(this.hls);\n this.timer = setInterval(this.ontick, 100);\n this.level = -1;\n this.fragLoadError = 0;\n if (media && lastCurrentTime) {\n logger.log(`configure startPosition @${lastCurrentTime}`);\n if (!this.lastPaused) {\n logger.log('resuming video');\n media.play();\n }\n this.state = State.IDLE;\n } else {\n this.lastCurrentTime = this.startPosition ? this.startPosition : 0;\n this.state = State.STARTING;\n }\n this.nextLoadPosition = this.startPosition = this.lastCurrentTime;\n this.tick();\n } else {\n logger.warn('cannot start loading as manifest not parsed yet');\n }\n }\n\n stop() {\n this.bufferRange = [];\n this.stalled = false;\n var frag = this.fragCurrent;\n if (frag) {\n if (frag.loader) {\n frag.loader.abort();\n }\n this.fragCurrent = null;\n }\n this.fragPrevious = null;\n logger.log('trigger BUFFER_RESET');\n this.hls.trigger(Event.BUFFER_RESET);\n if (this.timer) {\n clearInterval(this.timer);\n this.timer = null;\n }\n if (this.demuxer) {\n this.demuxer.destroy();\n this.demuxer = null;\n }\n }\n\n tick() {\n this.ticks++;\n if (this.ticks === 1) {\n this.doTick();\n if (this.ticks > 1) {\n setTimeout(this.tick, 1);\n }\n this.ticks = 0;\n }\n }\n\n doTick() {\n var pos, level, levelDetails, hls = this.hls, config = hls.config;\n //logger.log(this.state);\n switch(this.state) {\n case State.ERROR:\n //don't do anything in error state to avoid breaking further ...\n case State.PAUSED:\n //don't do anything in paused state either ...\n break;\n case State.STARTING:\n // determine load level\n this.startLevel = hls.startLevel;\n if (this.startLevel === -1) {\n // -1 : guess start Level by doing a bitrate test by loading first fragment of lowest quality level\n this.startLevel = 0;\n this.fragBitrateTest = true;\n }\n // set new level to playlist loader : this will trigger start level load\n this.level = hls.nextLoadLevel = this.startLevel;\n this.state = State.WAITING_LEVEL;\n this.loadedmetadata = false;\n break;\n case State.IDLE:\n // if video not attached AND\n // start fragment already requested OR start frag prefetch disable\n // exit loop\n // => if media not attached but start frag prefetch is enabled and start frag not requested yet, we will not exit loop\n if (!this.media &&\n (this.startFragRequested || !config.startFragPrefetch)) {\n break;\n }\n // determine next candidate fragment to be loaded, based on current position and\n // end of buffer position\n // ensure 60s of buffer upfront\n // if we have not yet loaded any fragment, start loading from start position\n if (this.loadedmetadata) {\n pos = this.media.currentTime;\n } else {\n pos = this.nextLoadPosition;\n }\n // determine next load level\n if (this.startFragRequested === false) {\n level = this.startLevel;\n } else {\n // we are not at playback start, get next load level from level Controller\n level = hls.nextLoadLevel;\n }\n var bufferInfo = this.bufferInfo(pos,config.maxBufferHole),\n bufferLen = bufferInfo.len,\n bufferEnd = bufferInfo.end,\n fragPrevious = this.fragPrevious,\n maxBufLen;\n // 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\n if ((this.levels[level]).hasOwnProperty('bitrate')) {\n maxBufLen = Math.max(8 * config.maxBufferSize / this.levels[level].bitrate, config.maxBufferLength);\n maxBufLen = Math.min(maxBufLen, config.maxMaxBufferLength);\n } else {\n maxBufLen = config.maxBufferLength;\n }\n // if buffer length is less than maxBufLen try to load a new fragment\n if (bufferLen < maxBufLen) {\n // set next load level : this will trigger a playlist load if needed\n hls.nextLoadLevel = level;\n this.level = level;\n levelDetails = this.levels[level].details;\n // if level info not retrieved yet, switch state and wait for level retrieval\n // if live playlist, ensure that new playlist has been refreshed to avoid loading/try to load\n // a useless and outdated fragment (that might even introduce load error if it is already out of the live playlist)\n if (typeof levelDetails === 'undefined' || levelDetails.live && this.levelLastLoaded !== level) {\n this.state = State.WAITING_LEVEL;\n break;\n }\n // find fragment index, contiguous with end of buffer position\n let fragments = levelDetails.fragments,\n fragLen = fragments.length,\n start = fragments[0].start,\n end = fragments[fragLen-1].start + fragments[fragLen-1].duration,\n frag;\n\n // in case of live playlist we need to ensure that requested position is not located before playlist start\n if (levelDetails.live) {\n // check if requested position is within seekable boundaries :\n //logger.log(`start/pos/bufEnd/seeking:${start.toFixed(3)}/${pos.toFixed(3)}/${bufferEnd.toFixed(3)}/${this.media.seeking}`);\n let maxLatency = config.liveMaxLatencyDuration !== undefined ? config.liveMaxLatencyDuration : config.liveMaxLatencyDurationCount*levelDetails.targetduration;\n\n if (bufferEnd < Math.max(start, end - maxLatency)) {\n let targetLatency = config.liveSyncDuration !== undefined ? config.liveSyncDuration : config.liveSyncDurationCount * levelDetails.targetduration;\n this.seekAfterBuffered = start + Math.max(0, levelDetails.totalduration - targetLatency);\n 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)}`);\n bufferEnd = this.seekAfterBuffered;\n }\n if (this.startFragRequested && !levelDetails.PTSKnown) {\n /* we are switching level on live playlist, but we don't have any PTS info for that quality level ...\n try to load frag matching with next SN.\n even if SN are not synchronized between playlists, loading this frag will help us\n compute playlist sliding and find the right one after in case it was not the right consecutive one */\n if (fragPrevious) {\n var targetSN = fragPrevious.sn + 1;\n if (targetSN >= levelDetails.startSN && targetSN <= levelDetails.endSN) {\n frag = fragments[targetSN - levelDetails.startSN];\n logger.log(`live playlist, switching playlist, load frag with next SN: ${frag.sn}`);\n }\n }\n if (!frag) {\n /* we have no idea about which fragment should be loaded.\n so let's load mid fragment. it will help computing playlist sliding and find the right one\n */\n frag = fragments[Math.min(fragLen - 1, Math.round(fragLen / 2))];\n logger.log(`live playlist, switching playlist, unknown, load middle frag : ${frag.sn}`);\n }\n }\n } else {\n // VoD playlist: if bufferEnd before start of playlist, load first fragment\n if (bufferEnd < start) {\n frag = fragments[0];\n }\n }\n if (!frag) {\n let foundFrag;\n let maxFragLookUpTolerance = config.maxFragLookUpTolerance;\n if (bufferEnd < end) {\n if (bufferEnd > end - maxFragLookUpTolerance) {\n maxFragLookUpTolerance = 0;\n }\n foundFrag = BinarySearch.search(fragments, (candidate) => {\n // offset should be within fragment boundary - config.maxFragLookUpTolerance\n // this is to cope with situations like\n // bufferEnd = 9.991\n // frag[Ø] : [0,10]\n // frag[1] : [10,20]\n // bufferEnd is within frag[0] range ... although what we are expecting is to return frag[1] here\n // frag start frag start+duration\n // |-----------------------------|\n // <---> <--->\n // ...--------><-----------------------------><---------....\n // previous frag matching fragment next frag\n // return -1 return 0 return 1\n //logger.log(`level/sn/start/end/bufEnd:${level}/${candidate.sn}/${candidate.start}/${(candidate.start+candidate.duration)}/${bufferEnd}`);\n if ((candidate.start + candidate.duration - maxFragLookUpTolerance) <= bufferEnd) {\n return 1;\n }\n else if (candidate.start - maxFragLookUpTolerance > bufferEnd) {\n return -1;\n }\n return 0;\n });\n } else {\n // reach end of playlist\n foundFrag = fragments[fragLen-1];\n }\n if (foundFrag) {\n frag = foundFrag;\n start = foundFrag.start;\n //logger.log('find SN matching with pos:' + bufferEnd + ':' + frag.sn);\n if (fragPrevious && frag.level === fragPrevious.level && frag.sn === fragPrevious.sn) {\n if (frag.sn < levelDetails.endSN) {\n frag = fragments[frag.sn + 1 - levelDetails.startSN];\n logger.log(`SN just loaded, load next one: ${frag.sn}`);\n } else {\n // have we reached end of VOD playlist ?\n if (!levelDetails.live) {\n this.hls.trigger(Event.BUFFER_EOS);\n this.state = State.ENDED;\n }\n frag = null;\n }\n }\n }\n }\n if(frag) {\n //logger.log(' loading frag ' + i +',pos/bufEnd:' + pos.toFixed(3) + '/' + bufferEnd.toFixed(3));\n if ((frag.decryptdata.uri != null) && (frag.decryptdata.key == null)) {\n logger.log(`Loading key for ${frag.sn} of [${levelDetails.startSN} ,${levelDetails.endSN}],level ${level}`);\n this.state = State.KEY_LOADING;\n hls.trigger(Event.KEY_LOADING, {frag: frag});\n } else {\n logger.log(`Loading ${frag.sn} of [${levelDetails.startSN} ,${levelDetails.endSN}],level ${level}, currentTime:${pos},bufferEnd:${bufferEnd.toFixed(3)}`);\n frag.autoLevel = hls.autoLevelEnabled;\n if (this.levels.length > 1) {\n frag.expectedLen = Math.round(frag.duration * this.levels[level].bitrate / 8);\n frag.trequest = performance.now();\n }\n // ensure that we are not reloading the same fragments in loop ...\n if (this.fragLoadIdx !== undefined) {\n this.fragLoadIdx++;\n } else {\n this.fragLoadIdx = 0;\n }\n if (frag.loadCounter) {\n frag.loadCounter++;\n let maxThreshold = config.fragLoadingLoopThreshold;\n // if this frag has already been loaded 3 times, and if it has been reloaded recently\n if (frag.loadCounter > maxThreshold && (Math.abs(this.fragLoadIdx - frag.loadIdx) < maxThreshold)) {\n hls.trigger(Event.ERROR, {type: ErrorTypes.MEDIA_ERROR, details: ErrorDetails.FRAG_LOOP_LOADING_ERROR, fatal: false, frag: frag});\n return;\n }\n } else {\n frag.loadCounter = 1;\n }\n frag.loadIdx = this.fragLoadIdx;\n this.fragCurrent = frag;\n this.startFragRequested = true;\n hls.trigger(Event.FRAG_LOADING, {frag: frag});\n this.state = State.FRAG_LOADING;\n }\n }\n }\n break;\n case State.WAITING_LEVEL:\n level = this.levels[this.level];\n // check if playlist is already loaded\n if (level && level.details) {\n this.state = State.IDLE;\n }\n break;\n case State.FRAG_LOADING:\n /*\n monitor fragment retrieval time...\n we compute expected time of arrival of the complete fragment.\n we compare it to expected time of buffer starvation\n */\n let v = this.media,frag = this.fragCurrent;\n /* only monitor frag retrieval time if\n (video not paused OR first fragment being loaded) AND autoswitching enabled AND not lowest level AND multiple levels */\n if (v && (!v.paused || this.loadedmetadata === false) && frag.autoLevel && this.level && this.levels.length > 1) {\n let requestDelay = performance.now() - frag.trequest;\n // monitor fragment load progress after half of expected fragment duration,to stabilize bitrate\n if (requestDelay > (500 * frag.duration)) {\n let loadRate = Math.max(1,frag.loaded * 1000 / requestDelay); // byte/s; at least 1 byte/s to avoid division by zero\n if (frag.expectedLen < frag.loaded) {\n frag.expectedLen = frag.loaded;\n }\n pos = v.currentTime;\n let fragLoadedDelay = (frag.expectedLen - frag.loaded) / loadRate;\n let bufferStarvationDelay = this.bufferInfo(pos,config.maxBufferHole).end - pos;\n // consider emergency switch down only if we have less than 2 frag buffered AND\n // time to finish loading current fragment is bigger than buffer starvation delay\n // ie if we risk buffer starvation if bw does not increase quickly\n if (bufferStarvationDelay < 2*frag.duration && fragLoadedDelay > bufferStarvationDelay) {\n let fragLevelNextLoadedDelay, nextLoadLevel;\n // lets iterate through lower level and try to find the biggest one that could avoid rebuffering\n // we start from current level - 1 and we step down , until we find a matching level\n for (nextLoadLevel = this.level - 1 ; nextLoadLevel >=0 ; nextLoadLevel--) {\n // compute time to load next fragment at lower level\n // 0.8 : consider only 80% of current bw to be conservative\n // 8 = bits per byte (bps/Bps)\n fragLevelNextLoadedDelay = frag.duration * this.levels[nextLoadLevel].bitrate / (8 * 0.8 * loadRate);\n logger.log(`fragLoadedDelay/bufferStarvationDelay/fragLevelNextLoadedDelay[${nextLoadLevel}] :${fragLoadedDelay.toFixed(1)}/${bufferStarvationDelay.toFixed(1)}/${fragLevelNextLoadedDelay.toFixed(1)}`);\n if (fragLevelNextLoadedDelay < bufferStarvationDelay) {\n // we found a lower level that be rebuffering free with current estimated bw !\n break;\n }\n }\n // only emergency switch down if it takes less time to load new fragment at lowest level instead\n // of finishing loading current one ...\n if (fragLevelNextLoadedDelay < fragLoadedDelay) {\n // ensure nextLoadLevel is not negative\n nextLoadLevel = Math.max(0,nextLoadLevel);\n // force next load level in auto mode\n hls.nextLoadLevel = nextLoadLevel;\n // abort fragment loading ...\n logger.warn(`loading too slow, abort fragment loading and switch to level ${nextLoadLevel}`);\n //abort fragment loading\n frag.loader.abort();\n hls.trigger(Event.FRAG_LOAD_EMERGENCY_ABORTED, {frag: frag});\n // switch back to IDLE state to request new fragment at lower level\n this.state = State.IDLE;\n }\n }\n }\n }\n break;\n case State.FRAG_LOADING_WAITING_RETRY:\n var now = performance.now();\n var retryDate = this.retryDate;\n var media = this.media;\n var isSeeking = media && media.seeking;\n // if current time is gt than retryDate, or if media seeking let's switch to IDLE state to retry loading\n if(!retryDate || (now >= retryDate) || isSeeking) {\n logger.log(`mediaController: retryDate reached, switch back to IDLE state`);\n this.state = State.IDLE;\n }\n break;\n case State.PARSING:\n // nothing to do, wait for fragment being parsed\n break;\n case State.PARSED:\n // nothing to do, wait for all buffers to be appended\n break;\n case State.ENDED:\n break;\n default:\n break;\n }\n // check buffer\n this._checkBuffer();\n // check/update current fragment\n this._checkFragmentChanged();\n }\n\n\n bufferInfo(pos,maxHoleDuration) {\n var media = this.media;\n if (media) {\n var vbuffered = media.buffered, buffered = [],i;\n for (i = 0; i < vbuffered.length; i++) {\n buffered.push({start: vbuffered.start(i), end: vbuffered.end(i)});\n }\n return this.bufferedInfo(buffered,pos,maxHoleDuration);\n } else {\n return {len: 0, start: 0, end: 0, nextStart : undefined} ;\n }\n }\n\n bufferedInfo(buffered,pos,maxHoleDuration) {\n var buffered2 = [],\n // bufferStart and bufferEnd are buffer boundaries around current video position\n bufferLen,bufferStart, bufferEnd,bufferStartNext,i;\n // sort on buffer.start/smaller end (IE does not always return sorted buffered range)\n buffered.sort(function (a, b) {\n var diff = a.start - b.start;\n if (diff) {\n return diff;\n } else {\n return b.end - a.end;\n }\n });\n // there might be some small holes between buffer time range\n // consider that holes smaller than maxHoleDuration are irrelevant and build another\n // buffer time range representations that discards those holes\n for (i = 0; i < buffered.length; i++) {\n var buf2len = buffered2.length;\n if(buf2len) {\n var buf2end = buffered2[buf2len - 1].end;\n // if small hole (value between 0 or maxHoleDuration ) or overlapping (negative)\n if((buffered[i].start - buf2end) < maxHoleDuration) {\n // merge overlapping time ranges\n // update lastRange.end only if smaller than item.end\n // e.g. [ 1, 15] with [ 2,8] => [ 1,15] (no need to modify lastRange.end)\n // whereas [ 1, 8] with [ 2,15] => [ 1,15] ( lastRange should switch from [1,8] to [1,15])\n if(buffered[i].end > buf2end) {\n buffered2[buf2len - 1].end = buffered[i].end;\n }\n } else {\n // big hole\n buffered2.push(buffered[i]);\n }\n } else {\n // first value\n buffered2.push(buffered[i]);\n }\n }\n for (i = 0, bufferLen = 0, bufferStart = bufferEnd = pos; i < buffered2.length; i++) {\n var start = buffered2[i].start,\n end = buffered2[i].end;\n //logger.log('buf start/end:' + buffered.start(i) + '/' + buffered.end(i));\n if ((pos + maxHoleDuration) >= start && pos < end) {\n // play position is inside this buffer TimeRange, retrieve end of buffer position and buffer length\n bufferStart = start;\n bufferEnd = end;\n bufferLen = bufferEnd - pos;\n } else if ((pos + maxHoleDuration) < start) {\n bufferStartNext = start;\n break;\n }\n }\n return {len: bufferLen, start: bufferStart, end: bufferEnd, nextStart : bufferStartNext};\n }\n\n getBufferRange(position) {\n var i, range,\n bufferRange = this.bufferRange;\n if (bufferRange) {\n for (i = bufferRange.length - 1; i >=0; i--) {\n range = bufferRange[i];\n if (position >= range.start && position <= range.end) {\n return range;\n }\n }\n }\n return null;\n }\n\n get currentLevel() {\n if (this.media) {\n var range = this.getBufferRange(this.media.currentTime);\n if (range) {\n return range.frag.level;\n }\n }\n return -1;\n }\n\n get nextBufferRange() {\n if (this.media) {\n // first get end range of current fragment\n return this.followingBufferRange(this.getBufferRange(this.media.currentTime));\n } else {\n return null;\n }\n }\n\n followingBufferRange(range) {\n if (range) {\n // try to get range of next fragment (500ms after this range)\n return this.getBufferRange(range.end + 0.5);\n }\n return null;\n }\n\n get nextLevel() {\n var range = this.nextBufferRange;\n if (range) {\n return range.frag.level;\n } else {\n return -1;\n }\n }\n\n isBuffered(position) {\n var v = this.media, buffered = v.buffered;\n for (var i = 0; i < buffered.length; i++) {\n if (position >= buffered.start(i) && position <= buffered.end(i)) {\n return true;\n }\n }\n return false;\n }\n\n _checkFragmentChanged() {\n var rangeCurrent, currentTime, video = this.media;\n if (video && video.seeking === false) {\n currentTime = video.currentTime;\n /* if video element is in seeked state, currentTime can only increase.\n (assuming that playback rate is positive ...)\n As sometimes currentTime jumps back to zero after a\n media decode error, check this, to avoid seeking back to\n wrong position after a media decode error\n */\n if(currentTime > video.playbackRate*this.lastCurrentTime) {\n this.lastCurrentTime = currentTime;\n }\n if (this.isBuffered(currentTime)) {\n rangeCurrent = this.getBufferRange(currentTime);\n } else if (this.isBuffered(currentTime + 0.1)) {\n /* ensure that FRAG_CHANGED event is triggered at startup,\n when first video frame is displayed and playback is paused.\n add a tolerance of 100ms, in case current position is not buffered,\n check if current pos+100ms is buffered and use that buffer range\n for FRAG_CHANGED event reporting */\n rangeCurrent = this.getBufferRange(currentTime + 0.1);\n }\n if (rangeCurrent) {\n var fragPlaying = rangeCurrent.frag;\n if (fragPlaying !== this.fragPlaying) {\n this.fragPlaying = fragPlaying;\n this.hls.trigger(Event.FRAG_CHANGED, {frag: fragPlaying});\n }\n }\n }\n }\n\n /*\n on immediate level switch :\n - pause playback if playing\n - cancel any pending load request\n - and trigger a buffer flush\n */\n immediateLevelSwitch() {\n logger.log('immediateLevelSwitch');\n if (!this.immediateSwitch) {\n this.immediateSwitch = true;\n this.previouslyPaused = this.media.paused;\n this.media.pause();\n }\n var fragCurrent = this.fragCurrent;\n if (fragCurrent && fragCurrent.loader) {\n fragCurrent.loader.abort();\n }\n this.fragCurrent = null;\n // flush everything\n this.hls.trigger(Event.BUFFER_FLUSHING, {startOffset: 0, endOffset: Number.POSITIVE_INFINITY});\n this.state = State.PAUSED;\n // increase fragment load Index to avoid frag loop loading error after buffer flush\n this.fragLoadIdx += 2 * this.config.fragLoadingLoopThreshold;\n // speed up switching, trigger timer function\n this.tick();\n }\n\n /*\n on immediate level switch end, after new fragment has been buffered :\n - nudge video decoder by slightly adjusting video currentTime\n - resume the playback if needed\n */\n immediateLevelSwitchEnd() {\n this.immediateSwitch = false;\n this.media.currentTime -= 0.0001;\n if (!this.previouslyPaused) {\n this.media.play();\n }\n }\n\n nextLevelSwitch() {\n /* try to switch ASAP without breaking video playback :\n in order to ensure smooth but quick level switching,\n we need to find the next flushable buffer range\n we should take into account new segment fetch time\n */\n var fetchdelay, currentRange, nextRange;\n currentRange = this.getBufferRange(this.media.currentTime);\n if (currentRange && currentRange.start > 1) {\n // flush buffer preceding current fragment (flush until current fragment start offset)\n // minus 1s to avoid video freezing, that could happen if we flush keyframe of current video ...\n this.hls.trigger(Event.BUFFER_FLUSHING, {startOffset: 0, endOffset: currentRange.start - 1});\n this.state = State.PAUSED;\n }\n if (!this.media.paused) {\n // add a safety delay of 1s\n var nextLevelId = this.hls.nextLoadLevel,nextLevel = this.levels[nextLevelId], fragLastKbps = this.fragLastKbps;\n if (fragLastKbps && this.fragCurrent) {\n fetchdelay = this.fragCurrent.duration * nextLevel.bitrate / (1000 * fragLastKbps) + 1;\n } else {\n fetchdelay = 0;\n }\n } else {\n fetchdelay = 0;\n }\n //logger.log('fetchdelay:'+fetchdelay);\n // find buffer range that will be reached once new fragment will be fetched\n nextRange = this.getBufferRange(this.media.currentTime + fetchdelay);\n if (nextRange) {\n // we can flush buffer range following this one without stalling playback\n nextRange = this.followingBufferRange(nextRange);\n if (nextRange) {\n // flush position is the start position of this new buffer\n this.hls.trigger(Event.BUFFER_FLUSHING, {startOffset: nextRange.start, endOffset: Number.POSITIVE_INFINITY});\n this.state = State.PAUSED;\n // if we are here, we can also cancel any loading/demuxing in progress, as they are useless\n var fragCurrent = this.fragCurrent;\n if (fragCurrent && fragCurrent.loader) {\n fragCurrent.loader.abort();\n }\n this.fragCurrent = null;\n // increase fragment load Index to avoid frag loop loading error after buffer flush\n this.fragLoadIdx += 2 * this.config.fragLoadingLoopThreshold;\n }\n }\n }\n\n onMediaAttached(data) {\n var media = this.media = data.media;\n this.onvseeking = this.onMediaSeeking.bind(this);\n this.onvseeked = this.onMediaSeeked.bind(this);\n this.onvended = this.onMediaEnded.bind(this);\n media.addEventListener('seeking', this.onvseeking);\n media.addEventListener('seeked', this.onvseeked);\n media.addEventListener('ended', this.onvended);\n if(this.levels && this.config.autoStartLoad) {\n this.startLoad();\n }\n }\n\n onMediaDetaching() {\n var media = this.media;\n if (media && media.ended) {\n logger.log('MSE detaching and video ended, reset startPosition');\n this.startPosition = this.lastCurrentTime = 0;\n }\n\n // reset fragment loading counter on MSE detaching to avoid reporting FRAG_LOOP_LOADING_ERROR after error recovery\n var levels = this.levels;\n if (levels) {\n // reset fragment load counter\n levels.forEach(level => {\n if(level.details) {\n level.details.fragments.forEach(fragment => {\n fragment.loadCounter = undefined;\n });\n }\n });\n }\n // remove video listeners\n if (media) {\n media.removeEventListener('seeking', this.onvseeking);\n media.removeEventListener('seeked', this.onvseeked);\n media.removeEventListener('ended', this.onvended);\n this.onvseeking = this.onvseeked = this.onvended = null;\n }\n this.media = null;\n this.loadedmetadata = false;\n this.stop();\n }\n\n onMediaSeeking() {\n if (this.state === State.FRAG_LOADING) {\n // check if currently loaded fragment is inside buffer.\n //if outside, cancel fragment loading, otherwise do nothing\n if (this.bufferInfo(this.media.currentTime,this.config.maxBufferHole).len === 0) {\n logger.log('seeking outside of buffer while fragment load in progress, cancel fragment load');\n var fragCurrent = this.fragCurrent;\n if (fragCurrent) {\n if (fragCurrent.loader) {\n fragCurrent.loader.abort();\n }\n this.fragCurrent = null;\n }\n this.fragPrevious = null;\n // switch to IDLE state to load new fragment\n this.state = State.IDLE;\n }\n } else if (this.state === State.ENDED) {\n // switch to IDLE state to check for potential new fragment\n this.state = State.IDLE;\n }\n if (this.media) {\n this.lastCurrentTime = this.media.currentTime;\n }\n // avoid reporting fragment loop loading error in case user is seeking several times on same position\n if (this.fragLoadIdx !== undefined) {\n this.fragLoadIdx += 2 * this.config.fragLoadingLoopThreshold;\n }\n // tick to speed up processing\n this.tick();\n }\n\n onMediaSeeked() {\n // tick to speed up FRAGMENT_PLAYING triggering\n this.tick();\n }\n\n onMediaEnded() {\n logger.log('media ended');\n // reset startPosition and lastCurrentTime to restart playback @ stream beginning\n this.startPosition = this.lastCurrentTime = 0;\n }\n\n\n onManifestParsed(data) {\n var aac = false, heaac = false, codec;\n data.levels.forEach(level => {\n // detect if we have different kind of audio codecs used amongst playlists\n codec = level.audioCodec;\n if (codec) {\n if (codec.indexOf('mp4a.40.2') !== -1) {\n aac = true;\n }\n if (codec.indexOf('mp4a.40.5') !== -1) {\n heaac = true;\n }\n }\n });\n this.audioCodecSwitch = (aac && heaac);\n if (this.audioCodecSwitch) {\n logger.log('both AAC/HE-AAC audio found in levels; declaring level codec as HE-AAC');\n }\n this.levels = data.levels;\n this.startLevelLoaded = false;\n this.startFragRequested = false;\n if (this.config.autoStartLoad) {\n this.startLoad();\n }\n }\n\n onLevelLoaded(data) {\n var newDetails = data.details,\n newLevelId = data.level,\n curLevel = this.levels[newLevelId],\n duration = newDetails.totalduration,\n sliding = 0;\n\n logger.log(`level ${newLevelId} loaded [${newDetails.startSN},${newDetails.endSN}],duration:${duration}`);\n this.levelLastLoaded = newLevelId;\n\n if (newDetails.live) {\n var curDetails = curLevel.details;\n if (curDetails) {\n // we already have details for that level, merge them\n LevelHelper.mergeDetails(curDetails,newDetails);\n sliding = newDetails.fragments[0].start;\n if (newDetails.PTSKnown) {\n logger.log(`live playlist sliding:${sliding.toFixed(3)}`);\n } else {\n logger.log('live playlist - outdated PTS, unknown sliding');\n }\n } else {\n newDetails.PTSKnown = false;\n logger.log('live playlist - first load, unknown sliding');\n }\n } else {\n newDetails.PTSKnown = false;\n }\n // override level info\n curLevel.details = newDetails;\n this.hls.trigger(Event.LEVEL_UPDATED, { details: newDetails, level: newLevelId });\n\n // compute start position\n if (this.startFragRequested === false) {\n // if live playlist, set start position to be fragment N-this.config.liveSyncDurationCount (usually 3)\n if (newDetails.live) {\n let targetLatency = this.config.liveSyncDuration !== undefined ? this.config.liveSyncDuration : this.config.liveSyncDurationCount * newDetails.targetduration;\n this.startPosition = Math.max(0, sliding + duration - targetLatency);\n }\n this.nextLoadPosition = this.startPosition;\n }\n // only switch batck to IDLE state if we were waiting for level to start downloading a new fragment\n if (this.state === State.WAITING_LEVEL) {\n this.state = State.IDLE;\n }\n //trigger handler right now\n this.tick();\n }\n\n onKeyLoaded() {\n if (this.state === State.KEY_LOADING) {\n this.state = State.IDLE;\n this.tick();\n }\n }\n\n onFragLoaded(data) {\n var fragCurrent = this.fragCurrent;\n if (this.state === State.FRAG_LOADING &&\n fragCurrent &&\n data.frag.level === fragCurrent.level &&\n data.frag.sn === fragCurrent.sn) {\n if (this.fragBitrateTest === true) {\n // switch back to IDLE state ... we just loaded a fragment to determine adequate start bitrate and initialize autoswitch algo\n this.state = State.IDLE;\n this.fragBitrateTest = false;\n data.stats.tparsed = data.stats.tbuffered = performance.now();\n this.hls.trigger(Event.FRAG_BUFFERED, {stats: data.stats, frag: fragCurrent});\n } else {\n this.state = State.PARSING;\n // transmux the MPEG-TS data to ISO-BMFF segments\n this.stats = data.stats;\n var currentLevel = this.levels[this.level],\n details = currentLevel.details,\n duration = details.totalduration,\n start = fragCurrent.start,\n level = fragCurrent.level,\n sn = fragCurrent.sn,\n audioCodec = currentLevel.audioCodec || this.config.defaultAudioCodec;\n if(this.audioCodecSwap) {\n logger.log('swapping playlist audio codec');\n if(audioCodec === undefined) {\n audioCodec = this.lastAudioCodec;\n }\n if(audioCodec) {\n if(audioCodec.indexOf('mp4a.40.5') !==-1) {\n audioCodec = 'mp4a.40.2';\n } else {\n audioCodec = 'mp4a.40.5';\n }\n }\n }\n this.pendingAppending = 0;\n logger.log(`Demuxing ${sn} of [${details.startSN} ,${details.endSN}],level ${level}`);\n this.demuxer.push(data.payload, audioCodec, currentLevel.videoCodec, start, fragCurrent.cc, level, sn, duration, fragCurrent.decryptdata);\n }\n }\n this.fragLoadError = 0;\n }\n\n onFragParsingInitSegment(data) {\n if (this.state === State.PARSING) {\n var tracks = data.tracks, trackName, track;\n\n // include levelCodec in audio and video tracks\n track = tracks.audio;\n if(track) {\n var audioCodec = this.levels[this.level].audioCodec,\n ua = navigator.userAgent.toLowerCase();\n if(audioCodec && this.audioCodecSwap) {\n logger.log('swapping playlist audio codec');\n if(audioCodec.indexOf('mp4a.40.5') !==-1) {\n audioCodec = 'mp4a.40.2';\n } else {\n audioCodec = 'mp4a.40.5';\n }\n }\n // in case AAC and HE-AAC audio codecs are signalled in manifest\n // force HE-AAC , as it seems that most browsers prefers that way,\n // except for mono streams OR on FF\n // these conditions might need to be reviewed ...\n if (this.audioCodecSwitch) {\n // don't force HE-AAC if mono stream\n if(track.metadata.channelCount !== 1 &&\n // don't force HE-AAC if firefox\n ua.indexOf('firefox') === -1) {\n audioCodec = 'mp4a.40.5';\n }\n }\n // HE-AAC is broken on Android, always signal audio codec as AAC even if variant manifest states otherwise\n if(ua.indexOf('android') !== -1) {\n audioCodec = 'mp4a.40.2';\n logger.log(`Android: force audio codec to` + audioCodec);\n }\n track.levelCodec = audioCodec;\n }\n track = tracks.video;\n if(track) {\n track.levelCodec = this.levels[this.level].videoCodec;\n }\n\n // if remuxer specify that a unique track needs to generated,\n // let's merge all tracks together\n if (data.unique) {\n var mergedTrack = {\n codec : '',\n levelCodec : ''\n };\n for (trackName in data.tracks) {\n track = tracks[trackName];\n mergedTrack.container = track.container;\n if (mergedTrack.codec) {\n mergedTrack.codec += ',';\n mergedTrack.levelCodec += ',';\n }\n if(track.codec) {\n mergedTrack.codec += track.codec;\n }\n if (track.levelCodec) {\n mergedTrack.levelCodec += track.levelCodec;\n }\n }\n tracks = { audiovideo : mergedTrack };\n }\n this.hls.trigger(Event.BUFFER_CODECS,tracks);\n // loop through tracks that are going to be provided to bufferController\n for (trackName in tracks) {\n track = tracks[trackName];\n logger.log(`track:${trackName},container:${track.container},codecs[level/parsed]=[${track.levelCodec}/${track.codec}]`);\n var initSegment = track.initSegment;\n if (initSegment) {\n this.pendingAppending++;\n this.hls.trigger(Event.BUFFER_APPENDING, {type: trackName, data: initSegment});\n }\n }\n //trigger handler right now\n this.tick();\n }\n }\n\n onFragParsingData(data) {\n if (this.state === State.PARSING) {\n this.tparse2 = Date.now();\n var level = this.levels[this.level],\n frag = this.fragCurrent;\n\n 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}`);\n\n var drift = LevelHelper.updateFragPTS(level.details,frag.sn,data.startPTS,data.endPTS),\n hls = this.hls;\n hls.trigger(Event.LEVEL_PTS_UPDATED, {details: level.details, level: this.level, drift: drift});\n\n [data.data1, data.data2].forEach(buffer => {\n if (buffer) {\n this.pendingAppending++;\n hls.trigger(Event.BUFFER_APPENDING, {type: data.type, data: buffer});\n }\n });\n\n this.nextLoadPosition = data.endPTS;\n this.bufferRange.push({type: data.type, start: data.startPTS, end: data.endPTS, frag: frag});\n\n //trigger handler right now\n this.tick();\n } else {\n logger.warn(`not in PARSING state but ${this.state}, ignoring FRAG_PARSING_DATA event`);\n }\n }\n\n onFragParsed() {\n if (this.state === State.PARSING) {\n this.stats.tparsed = performance.now();\n this.state = State.PARSED;\n this._checkAppendedParsed();\n }\n }\n\n onBufferAppended() {\n switch (this.state) {\n case State.PARSING:\n case State.PARSED:\n this.pendingAppending--;\n this._checkAppendedParsed();\n break;\n default:\n break;\n }\n }\n\n _checkAppendedParsed() {\n //trigger handler right now\n if (this.state === State.PARSED && this.pendingAppending === 0) {\n var frag = this.fragCurrent, stats = this.stats;\n if (frag) {\n this.fragPrevious = frag;\n stats.tbuffered = performance.now();\n this.fragLastKbps = Math.round(8 * stats.length / (stats.tbuffered - stats.tfirst));\n this.hls.trigger(Event.FRAG_BUFFERED, {stats: stats, frag: frag});\n logger.log(`media buffered : ${this.timeRangesToString(this.media.buffered)}`);\n this.state = State.IDLE;\n }\n this.tick();\n }\n }\n\n onError(data) {\n switch(data.details) {\n case ErrorDetails.FRAG_LOAD_ERROR:\n case ErrorDetails.FRAG_LOAD_TIMEOUT:\n if(!data.fatal) {\n var loadError = this.fragLoadError;\n if(loadError) {\n loadError++;\n } else {\n loadError=1;\n }\n if (loadError <= this.config.fragLoadingMaxRetry) {\n this.fragLoadError = loadError;\n // reset load counter to avoid frag loop loading error\n data.frag.loadCounter = 0;\n // exponential backoff capped to 64s\n var delay = Math.min(Math.pow(2,loadError-1)*this.config.fragLoadingRetryDelay,64000);\n logger.warn(`mediaController: frag loading failed, retry in ${delay} ms`);\n this.retryDate = performance.now() + delay;\n // retry loading state\n this.state = State.FRAG_LOADING_WAITING_RETRY;\n } else {\n logger.error(`mediaController: ${data.details} reaches max retry, redispatch as fatal ...`);\n // redispatch same error but with fatal set to true\n data.fatal = true;\n this.hls.trigger(Event.ERROR, data);\n this.state = State.ERROR;\n }\n }\n break;\n case ErrorDetails.FRAG_LOOP_LOADING_ERROR:\n case ErrorDetails.LEVEL_LOAD_ERROR:\n case ErrorDetails.LEVEL_LOAD_TIMEOUT:\n case ErrorDetails.KEY_LOAD_ERROR:\n case ErrorDetails.KEY_LOAD_TIMEOUT:\n // if fatal error, stop processing, otherwise move to IDLE to retry loading\n logger.warn(`mediaController: ${data.details} while loading frag,switch to ${data.fatal ? 'ERROR' : 'IDLE'} state ...`);\n this.state = data.fatal ? State.ERROR : State.IDLE;\n break;\n case ErrorDetails.BUFFER_FULL_ERROR:\n // trigger a smooth level switch to empty buffers\n // also reduce max buffer length as it might be too high. we do this to avoid loop flushing ...\n this.config.maxMaxBufferLength/=2;\n logger.warn(`reduce max buffer length to ${this.config.maxMaxBufferLength}s and trigger a nextLevelSwitch to flush old buffer and fix QuotaExceededError`);\n this.nextLevelSwitch();\n break;\n default:\n break;\n }\n }\n\n_checkBuffer() {\n var media = this.media;\n if(media) {\n // compare readyState\n var readyState = media.readyState;\n // if ready state different from HAVE_NOTHING (numeric value 0), we are allowed to seek\n if(readyState) {\n var targetSeekPosition, currentTime;\n // if seek after buffered defined, let's seek if within acceptable range\n var seekAfterBuffered = this.seekAfterBuffered;\n if(seekAfterBuffered) {\n if(media.duration >= seekAfterBuffered) {\n targetSeekPosition = seekAfterBuffered;\n this.seekAfterBuffered = undefined;\n }\n } else {\n currentTime = media.currentTime;\n var loadedmetadata = this.loadedmetadata;\n\n // adjust currentTime to start position on loaded metadata\n if(!loadedmetadata && media.buffered.length) {\n this.loadedmetadata = true;\n // only adjust currentTime if not equal to 0\n if (!currentTime && currentTime !== this.startPosition) {\n targetSeekPosition = this.startPosition;\n }\n }\n }\n if (targetSeekPosition) {\n currentTime = targetSeekPosition;\n logger.log(`target seek position:${targetSeekPosition}`);\n }\n var bufferInfo = this.bufferInfo(currentTime,0),\n expectedPlaying = !(media.paused || media.ended || media.seeking || readyState < 2),\n jumpThreshold = 0.4, // tolerance needed as some browsers stalls playback before reaching buffered range end\n playheadMoving = currentTime > media.playbackRate*this.lastCurrentTime;\n\n if (this.stalled && playheadMoving) {\n this.stalled = false;\n }\n // check buffer upfront\n // if less than 200ms is buffered, and media is expected to play but playhead is not moving,\n // and we have a new buffer range available upfront, let's seek to that one\n if(bufferInfo.len <= jumpThreshold) {\n if(playheadMoving || !expectedPlaying) {\n // playhead moving or media not playing\n jumpThreshold = 0;\n } else {\n // playhead not moving AND media expected to play\n logger.log(`playback seems stuck @${currentTime}`);\n if(!this.stalled) {\n this.hls.trigger(Event.ERROR, {type: ErrorTypes.MEDIA_ERROR, details: ErrorDetails.BUFFER_STALLED_ERROR, fatal: false});\n this.stalled = true;\n }\n }\n // if we are below threshold, try to jump if next buffer range is close\n if(bufferInfo.len <= jumpThreshold) {\n // no buffer available @ currentTime, check if next buffer is close (within a config.maxSeekHole second range)\n var nextBufferStart = bufferInfo.nextStart, delta = nextBufferStart-currentTime;\n if(nextBufferStart &&\n (delta < this.config.maxSeekHole) &&\n (delta > 0) &&\n !media.seeking) {\n // next buffer is close ! adjust currentTime to nextBufferStart\n // this will ensure effective video decoding\n logger.log(`adjust currentTime from ${media.currentTime} to next buffered @ ${nextBufferStart}`);\n media.currentTime = nextBufferStart;\n this.hls.trigger(Event.ERROR, {type: ErrorTypes.MEDIA_ERROR, details: ErrorDetails.BUFFER_SEEK_OVER_HOLE, fatal: false});\n }\n }\n } else {\n if (targetSeekPosition && media.currentTime !== targetSeekPosition) {\n logger.log(`adjust currentTime from ${media.currentTime} to ${targetSeekPosition}`);\n media.currentTime = targetSeekPosition;\n }\n }\n }\n }\n }\n\n onBufferFlushed() {\n /* after successful buffer flushing, rebuild buffer Range array\n loop through existing buffer range and check if\n corresponding range is still buffered. only push to new array already buffered range\n */\n var newRange = [],range,i;\n for (i = 0; i < this.bufferRange.length; i++) {\n range = this.bufferRange[i];\n if (this.isBuffered((range.start + range.end) / 2)) {\n newRange.push(range);\n }\n }\n this.bufferRange = newRange;\n\n // handle end of immediate switching if needed\n if (this.immediateSwitch) {\n this.immediateLevelSwitchEnd();\n }\n // move to IDLE once flush complete. this should trigger new fragment loading\n this.state = State.IDLE;\n // reset reference to frag\n this.fragPrevious = null;\n }\n\n swapAudioCodec() {\n this.audioCodecSwap = !this.audioCodecSwap;\n }\n\n timeRangesToString(r) {\n var log = '', len = r.length;\n for (var i=0; i OR CONTRIBUTORS BE\n * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR\n * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF\n * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR\n * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE\n * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN\n * IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.\n *\n * The views and conclusions contained in the software and documentation\n * are those of the authors and should not be interpreted as representing\n * official policies, either expressed or implied, of the authors.\n */\nclass AES {\n\n /**\n * Schedule out an AES key for both encryption and decryption. This\n * is a low-level class. Use a cipher mode to do bulk encryption.\n *\n * @constructor\n * @param key {Array} The key as an array of 4, 6 or 8 words.\n */\n constructor(key) {\n /**\n * The expanded S-box and inverse S-box tables. These will be computed\n * on the client so that we don't have to send them down the wire.\n *\n * There are two tables, _tables[0] is for encryption and\n * _tables[1] is for decryption.\n *\n * The first 4 sub-tables are the expanded S-box with MixColumns. The\n * last (_tables[01][4]) is the S-box itself.\n *\n * @private\n */\n this._tables = [[[],[],[],[],[]],[[],[],[],[],[]]];\n\n this._precompute();\n\n var i, j, tmp,\n encKey, decKey,\n sbox = this._tables[0][4], decTable = this._tables[1],\n keyLen = key.length, rcon = 1;\n\n if (keyLen !== 4 && keyLen !== 6 && keyLen !== 8) {\n throw new Error('Invalid aes key size=' + keyLen);\n }\n\n encKey = key.slice(0);\n decKey = [];\n this._key = [encKey, decKey];\n\n // schedule encryption keys\n for (i = keyLen; i < 4 * keyLen + 28; i++) {\n tmp = encKey[i-1];\n\n // apply sbox\n if (i%keyLen === 0 || (keyLen === 8 && i%keyLen === 4)) {\n tmp = sbox[tmp>>>24]<<24 ^ sbox[tmp>>16&255]<<16 ^ sbox[tmp>>8&255]<<8 ^ sbox[tmp&255];\n\n // shift rows and add rcon\n if (i%keyLen === 0) {\n tmp = tmp<<8 ^ tmp>>>24 ^ rcon<<24;\n rcon = rcon<<1 ^ (rcon>>7)*283;\n }\n }\n\n encKey[i] = encKey[i-keyLen] ^ tmp;\n }\n\n // schedule decryption keys\n for (j = 0; i; j++, i--) {\n tmp = encKey[j&3 ? i : i - 4];\n if (i<=4 || j<4) {\n decKey[j] = tmp;\n } else {\n decKey[j] = decTable[0][sbox[tmp>>>24 ]] ^\n decTable[1][sbox[tmp>>16 & 255]] ^\n decTable[2][sbox[tmp>>8 & 255]] ^\n decTable[3][sbox[tmp & 255]];\n }\n }\n }\n\n /**\n * Expand the S-box tables.\n *\n * @private\n */\n _precompute() {\n var encTable = this._tables[0], decTable = this._tables[1],\n sbox = encTable[4], sboxInv = decTable[4],\n i, x, xInv, d=[], th=[], x2, x4, x8, s, tEnc, tDec;\n\n // Compute double and third tables\n for (i = 0; i < 256; i++) {\n th[( d[i] = i<<1 ^ (i>>7)*283 )^i]=i;\n }\n\n for (x = xInv = 0; !sbox[x]; x ^= x2 || 1, xInv = th[xInv] || 1) {\n // Compute sbox\n s = xInv ^ xInv<<1 ^ xInv<<2 ^ xInv<<3 ^ xInv<<4;\n s = s>>8 ^ s&255 ^ 99;\n sbox[x] = s;\n sboxInv[s] = x;\n\n // Compute MixColumns\n x8 = d[x4 = d[x2 = d[x]]];\n tDec = x8*0x1010101 ^ x4*0x10001 ^ x2*0x101 ^ x*0x1010100;\n tEnc = d[s]*0x101 ^ s*0x1010100;\n\n for (i = 0; i < 4; i++) {\n encTable[i][x] = tEnc = tEnc<<24 ^ tEnc>>>8;\n decTable[i][s] = tDec = tDec<<24 ^ tDec>>>8;\n }\n }\n\n // Compactify. Considerable speedup on Firefox.\n for (i = 0; i < 5; i++) {\n encTable[i] = encTable[i].slice(0);\n decTable[i] = decTable[i].slice(0);\n }\n }\n\n /**\n * Decrypt 16 bytes, specified as four 32-bit words.\n * @param encrypted0 {number} the first word to decrypt\n * @param encrypted1 {number} the second word to decrypt\n * @param encrypted2 {number} the third word to decrypt\n * @param encrypted3 {number} the fourth word to decrypt\n * @param out {Int32Array} the array to write the decrypted words\n * into\n * @param offset {number} the offset into the output array to start\n * writing results\n * @return {Array} The plaintext.\n */\n decrypt(encrypted0, encrypted1, encrypted2, encrypted3, out, offset) {\n var key = this._key[1],\n // state variables a,b,c,d are loaded with pre-whitened data\n a = encrypted0 ^ key[0],\n b = encrypted3 ^ key[1],\n c = encrypted2 ^ key[2],\n d = encrypted1 ^ key[3],\n a2, b2, c2,\n\n nInnerRounds = key.length / 4 - 2, // key.length === 2 ?\n i,\n kIndex = 4,\n table = this._tables[1],\n\n // load up the tables\n table0 = table[0],\n table1 = table[1],\n table2 = table[2],\n table3 = table[3],\n sbox = table[4];\n\n // Inner rounds. Cribbed from OpenSSL.\n for (i = 0; i < nInnerRounds; i++) {\n a2 = table0[a>>>24] ^ table1[b>>16 & 255] ^ table2[c>>8 & 255] ^ table3[d & 255] ^ key[kIndex];\n b2 = table0[b>>>24] ^ table1[c>>16 & 255] ^ table2[d>>8 & 255] ^ table3[a & 255] ^ key[kIndex + 1];\n c2 = table0[c>>>24] ^ table1[d>>16 & 255] ^ table2[a>>8 & 255] ^ table3[b & 255] ^ key[kIndex + 2];\n d = table0[d>>>24] ^ table1[a>>16 & 255] ^ table2[b>>8 & 255] ^ table3[c & 255] ^ key[kIndex + 3];\n kIndex += 4;\n a=a2; b=b2; c=c2;\n }\n\n // Last round.\n for (i = 0; i < 4; i++) {\n out[(3 & -i) + offset] =\n sbox[a>>>24 ]<<24 ^\n sbox[b>>16 & 255]<<16 ^\n sbox[c>>8 & 255]<<8 ^\n sbox[d & 255] ^\n key[kIndex++];\n a2=a; a=b; b=c; c=d; d=a2;\n }\n }\n}\n\nexport default AES;\n", "/*\n *\n * This file contains an adaptation of the AES decryption algorithm\n * from the Standford Javascript Cryptography Library. That work is\n * covered by the following copyright and permissions notice:\n *\n * Copyright 2009-2010 Emily Stark, Mike Hamburg, Dan Boneh.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without\n * modification, are permitted provided that the following conditions are\n * met:\n *\n * 1. Redistributions of source code must retain the above copyright\n * notice, this list of conditions and the following disclaimer.\n *\n * 2. Redistributions in binary form must reproduce the above\n * copyright notice, this list of conditions and the following\n * disclaimer in the documentation and/or other materials provided\n * with the distribution.\n *\n * THIS SOFTWARE IS PROVIDED BY THE AUTHORS ``AS IS'' AND ANY EXPRESS OR\n * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE\n * DISCLAIMED. IN NO EVENT SHALL OR CONTRIBUTORS BE\n * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR\n * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF\n * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR\n * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE\n * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN\n * IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.\n *\n * The views and conclusions contained in the software and documentation\n * are those of the authors and should not be interpreted as representing\n * official policies, either expressed or implied, of the authors.\n */\n\nimport AES from './aes';\n\nclass AES128Decrypter {\n\n constructor(key, initVector) {\n this.key = key;\n this.iv = initVector;\n }\n\n /**\n * Convert network-order (big-endian) bytes into their little-endian\n * representation.\n */\n ntoh(word) {\n return (word << 24) |\n ((word & 0xff00) << 8) |\n ((word & 0xff0000) >> 8) |\n (word >>> 24);\n }\n\n\n /**\n * Decrypt bytes using AES-128 with CBC and PKCS#7 padding.\n * @param encrypted {Uint8Array} the encrypted bytes\n * @param key {Uint32Array} the bytes of the decryption key\n * @param initVector {Uint32Array} the initialization vector (IV) to\n * use for the first round of CBC.\n * @return {Uint8Array} the decrypted bytes\n *\n * @see http://en.wikipedia.org/wiki/Advanced_Encryption_Standard\n * @see http://en.wikipedia.org/wiki/Block_cipher_mode_of_operation#Cipher_Block_Chaining_.28CBC.29\n * @see https://tools.ietf.org/html/rfc2315\n */\n doDecrypt(encrypted, key, initVector) {\n var\n // word-level access to the encrypted bytes\n encrypted32 = new Int32Array(encrypted.buffer, encrypted.byteOffset, encrypted.byteLength >> 2),\n\n decipher = new AES(Array.prototype.slice.call(key)),\n\n // byte and word-level access for the decrypted output\n decrypted = new Uint8Array(encrypted.byteLength),\n decrypted32 = new Int32Array(decrypted.buffer),\n\n // temporary variables for working with the IV, encrypted, and\n // decrypted data\n init0, init1, init2, init3,\n encrypted0, encrypted1, encrypted2, encrypted3,\n\n // iteration variable\n wordIx;\n\n // pull out the words of the IV to ensure we don't modify the\n // passed-in reference and easier access\n init0 = ~~initVector[0];\n init1 = ~~initVector[1];\n init2 = ~~initVector[2];\n init3 = ~~initVector[3];\n\n // decrypt four word sequences, applying cipher-block chaining (CBC)\n // to each decrypted block\n for (wordIx = 0; wordIx < encrypted32.length; wordIx += 4) {\n // convert big-endian (network order) words into little-endian\n // (javascript order)\n encrypted0 = ~~this.ntoh(encrypted32[wordIx]);\n encrypted1 = ~~this.ntoh(encrypted32[wordIx + 1]);\n encrypted2 = ~~this.ntoh(encrypted32[wordIx + 2]);\n encrypted3 = ~~this.ntoh(encrypted32[wordIx + 3]);\n\n // decrypt the block\n decipher.decrypt(encrypted0,\n encrypted1,\n encrypted2,\n encrypted3,\n decrypted32,\n wordIx);\n\n // XOR with the IV, and restore network byte-order to obtain the\n // plaintext\n decrypted32[wordIx] = this.ntoh(decrypted32[wordIx] ^ init0);\n decrypted32[wordIx + 1] = this.ntoh(decrypted32[wordIx + 1] ^ init1);\n decrypted32[wordIx + 2] = this.ntoh(decrypted32[wordIx + 2] ^ init2);\n decrypted32[wordIx + 3] = this.ntoh(decrypted32[wordIx + 3] ^ init3);\n\n // setup the IV for the next round\n init0 = encrypted0;\n init1 = encrypted1;\n init2 = encrypted2;\n init3 = encrypted3;\n }\n\n return decrypted;\n }\n\n localDecrypt(encrypted, key, initVector, decrypted) {\n var bytes = this.doDecrypt(encrypted,\n key,\n initVector);\n decrypted.set(bytes, encrypted.byteOffset);\n }\n\n decrypt(encrypted) {\n var\n step = 4 * 8000,\n //encrypted32 = new Int32Array(encrypted.buffer),\n encrypted32 = new Int32Array(encrypted),\n decrypted = new Uint8Array(encrypted.byteLength),\n i = 0;\n\n // split up the encryption job and do the individual chunks asynchronously\n var key = this.key;\n var initVector = this.iv;\n this.localDecrypt(encrypted32.subarray(i, i + step), key, initVector, decrypted);\n\n for (i = step; i < encrypted32.length; i += step) {\n initVector = new Uint32Array([\n this.ntoh(encrypted32[i - 4]),\n this.ntoh(encrypted32[i - 3]),\n this.ntoh(encrypted32[i - 2]),\n this.ntoh(encrypted32[i - 1])\n ]);\n this.localDecrypt(encrypted32.subarray(i, i + step), key, initVector, decrypted);\n }\n\n return decrypted;\n }\n}\n\nexport default AES128Decrypter;\n", @@ -67,7 +67,7 @@ "/*\n*\n* All objects in the event handling chain should inherit from this class\n*\n*/\n\n//import {logger} from './utils/logger';\n\nclass EventHandler {\n\n constructor(hls, ...events) {\n this.hls = hls;\n this.onEvent = this.onEvent.bind(this);\n this.handledEvents = events;\n this.useGenericHandler = true;\n\n this.registerListeners();\n }\n\n destroy() {\n this.unregisterListeners();\n }\n\n isEventHandler() {\n return typeof this.handledEvents === 'object' && this.handledEvents.length && typeof this.onEvent === 'function';\n }\n\n registerListeners() {\n if (this.isEventHandler()) {\n this.handledEvents.forEach(function(event) {\n if (event === 'hlsEventGeneric') {\n throw new Error('Forbidden event name: ' + event);\n }\n this.hls.on(event, this.onEvent);\n }.bind(this));\n }\n }\n\n unregisterListeners() {\n if (this.isEventHandler()) {\n this.handledEvents.forEach(function(event) {\n this.hls.off(event, this.onEvent);\n }.bind(this));\n }\n }\n\n /*\n * arguments: event (string), data (any)\n */\n onEvent(event, data) {\n this.onEventGeneric(event, data);\n }\n\n onEventGeneric(event, data) {\n var eventToFunction = function(event, data) {\n var funcName = 'on' + event.replace('hls', '');\n if (typeof this[funcName] !== 'function') {\n throw new Error(`Event ${event} has no generic handler in this ${this.constructor.name} class (tried ${funcName})`);\n }\n return this[funcName].bind(this, data);\n };\n eventToFunction.call(this, event, data).call();\n }\n}\n\nexport default EventHandler;", "module.exports = {\n // fired before MediaSource is attaching to media element - data: { media }\n MEDIA_ATTACHING: 'hlsMediaAttaching',\n // fired when MediaSource has been succesfully attached to media element - data: { }\n MEDIA_ATTACHED: 'hlsMediaAttached',\n // fired before detaching MediaSource from media element - data: { }\n MEDIA_DETACHING: 'hlsMediaDetaching',\n // fired when MediaSource has been detached from media element - data: { }\n MEDIA_DETACHED: 'hlsMediaDetached',\n // fired when we buffer is going to be resetted\n BUFFER_RESET: 'hlsBufferReset',\n // fired when we know about the codecs that we need buffers for to push into - data: {tracks : { container, codec, levelCodec, initSegment, metadata }}\n BUFFER_CODECS: 'hlsBufferCodecs',\n // fired when we append a segment to the buffer - data: { segment: segment object }\n BUFFER_APPENDING: 'hlsBufferAppending',\n // fired when we are done with appending a media segment to the buffer\n BUFFER_APPENDED: 'hlsBufferAppended',\n // fired when the stream is finished and we want to notify the media buffer that there will be no more data\n BUFFER_EOS: 'hlsBufferEos',\n // fired when the media buffer should be flushed - data {startOffset, endOffset}\n BUFFER_FLUSHING: 'hlsBufferFlushing',\n // fired when the media has been flushed\n BUFFER_FLUSHED: 'hlsBufferFlushed',\n // fired to signal that a manifest loading starts - data: { url : manifestURL}\n MANIFEST_LOADING: 'hlsManifestLoading',\n // fired after manifest has been loaded - data: { levels : [available quality levels] , url : manifestURL, stats : { trequest, tfirst, tload, mtime}}\n MANIFEST_LOADED: 'hlsManifestLoaded',\n // fired after manifest has been parsed - data: { levels : [available quality levels] , firstLevel : index of first quality level appearing in Manifest}\n MANIFEST_PARSED: 'hlsManifestParsed',\n // fired when a level playlist loading starts - data: { url : level URL level : id of level being loaded}\n LEVEL_LOADING: 'hlsLevelLoading',\n // fired when a level playlist loading finishes - data: { details : levelDetails object, level : id of loaded level, stats : { trequest, tfirst, tload, mtime} }\n LEVEL_LOADED: 'hlsLevelLoaded',\n // 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 }\n LEVEL_UPDATED: 'hlsLevelUpdated',\n // 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 }\n LEVEL_PTS_UPDATED: 'hlsLevelPtsUpdated',\n // fired when a level switch is requested - data: { level : id of new level }\n LEVEL_SWITCH: 'hlsLevelSwitch',\n // fired when a fragment loading starts - data: { frag : fragment object}\n FRAG_LOADING: 'hlsFragLoading',\n // fired when a fragment loading is progressing - data: { frag : fragment object, { trequest, tfirst, loaded}}\n FRAG_LOAD_PROGRESS: 'hlsFragLoadProgress',\n // Identifier for fragment load aborting for emergency switch down - data: {frag : fragment object}\n FRAG_LOAD_EMERGENCY_ABORTED: 'hlsFragLoadEmergencyAborted',\n // fired when a fragment loading is completed - data: { frag : fragment object, payload : fragment payload, stats : { trequest, tfirst, tload, length}}\n FRAG_LOADED: 'hlsFragLoaded',\n // fired when Init Segment has been extracted from fragment - data: { moov : moov MP4 box, codecs : codecs found while parsing fragment}\n FRAG_PARSING_INIT_SEGMENT: 'hlsFragParsingInitSegment',\n // fired when parsing sei text is completed - data: { samples : [ sei samples pes ] }\n FRAG_PARSING_USERDATA: 'hlsFragParsingUserdata',\n // fired when parsing id3 is completed - data: { samples : [ id3 samples pes ] }\n FRAG_PARSING_METADATA: 'hlsFragParsingMetadata',\n // fired when data have been extracted from fragment - data: { data1 : moof MP4 box or TS fragments, data2 : mdat MP4 box or null}\n FRAG_PARSING_DATA: 'hlsFragParsingData',\n // fired when fragment parsing is completed - data: undefined\n FRAG_PARSED: 'hlsFragParsed',\n // fired when fragment remuxed MP4 boxes have all been appended into SourceBuffer - data: { frag : fragment object, stats : { trequest, tfirst, tload, tparsed, tbuffered, length} }\n FRAG_BUFFERED: 'hlsFragBuffered',\n // fired when fragment matching with current media position is changing - data : { frag : fragment object }\n FRAG_CHANGED: 'hlsFragChanged',\n // Identifier for a FPS drop event - data: {curentDropped, currentDecoded, totalDroppedFrames}\n FPS_DROP: 'hlsFpsDrop',\n // 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}\n ERROR: 'hlsError',\n // 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\n DESTROYING: 'hlsDestroying',\n // fired when a decrypt key loading starts - data: { frag : fragment object}\n KEY_LOADING: 'hlsKeyLoading',\n // fired when a decrypt key loading is completed - data: { frag : fragment object, payload : key payload, stats : { trequest, tfirst, tload, length}}\n KEY_LOADED: 'hlsKeyLoaded',\n};\n", "/**\n * Level Helper class, providing methods dealing with playlist sliding and drift\n*/\n\nimport {logger} from '../utils/logger';\n\nclass LevelHelper {\n\n static mergeDetails(oldDetails,newDetails) {\n var start = Math.max(oldDetails.startSN,newDetails.startSN)-newDetails.startSN,\n end = Math.min(oldDetails.endSN,newDetails.endSN)-newDetails.startSN,\n delta = newDetails.startSN - oldDetails.startSN,\n oldfragments = oldDetails.fragments,\n newfragments = newDetails.fragments,\n ccOffset =0,\n PTSFrag;\n\n // check if old/new playlists have fragments in common\n if ( end < start) {\n newDetails.PTSKnown = false;\n return;\n }\n // loop through overlapping SN and update startPTS , cc, and duration if any found\n for(var i = start ; i <= end ; i++) {\n var oldFrag = oldfragments[delta+i],\n newFrag = newfragments[i];\n ccOffset = oldFrag.cc - newFrag.cc;\n if (!isNaN(oldFrag.startPTS)) {\n newFrag.start = newFrag.startPTS = oldFrag.startPTS;\n newFrag.endPTS = oldFrag.endPTS;\n newFrag.duration = oldFrag.duration;\n PTSFrag = newFrag;\n }\n }\n\n if(ccOffset) {\n logger.log(`discontinuity sliding from playlist, take drift into account`);\n for(i = 0 ; i < newfragments.length ; i++) {\n newfragments[i].cc += ccOffset;\n }\n }\n\n // if at least one fragment contains PTS info, recompute PTS information for all fragments\n if(PTSFrag) {\n LevelHelper.updateFragPTS(newDetails,PTSFrag.sn,PTSFrag.startPTS,PTSFrag.endPTS);\n } else {\n // adjust start by sliding offset\n var sliding = oldfragments[delta].start;\n for(i = 0 ; i < newfragments.length ; i++) {\n newfragments[i].start += sliding;\n }\n }\n // if we are here, it means we have fragments overlapping between\n // old and new level. reliable PTS info is thus relying on old level\n newDetails.PTSKnown = oldDetails.PTSKnown;\n return;\n }\n\n static updateFragPTS(details,sn,startPTS,endPTS) {\n var fragIdx, fragments, frag, i;\n // exit if sn out of range\n if (sn < details.startSN || sn > details.endSN) {\n return 0;\n }\n fragIdx = sn - details.startSN;\n fragments = details.fragments;\n frag = fragments[fragIdx];\n if(!isNaN(frag.startPTS)) {\n startPTS = Math.min(startPTS,frag.startPTS);\n endPTS = Math.max(endPTS, frag.endPTS);\n }\n\n var drift = startPTS - frag.start;\n\n frag.start = frag.startPTS = startPTS;\n frag.endPTS = endPTS;\n frag.duration = endPTS - startPTS;\n // adjust fragment PTS/duration from seqnum-1 to frag 0\n for(i = fragIdx ; i > 0 ; i--) {\n LevelHelper.updatePTS(fragments,i,i-1);\n }\n\n // adjust fragment PTS/duration from seqnum to last frag\n for(i = fragIdx ; i < fragments.length - 1 ; i++) {\n LevelHelper.updatePTS(fragments,i,i+1);\n }\n details.PTSKnown = true;\n //logger.log(` frag start/end:${startPTS.toFixed(3)}/${endPTS.toFixed(3)}`);\n\n return drift;\n }\n\n static updatePTS(fragments,fromIdx, toIdx) {\n var fragFrom = fragments[fromIdx],fragTo = fragments[toIdx], fragToPTS = fragTo.startPTS;\n // if we know startPTS[toIdx]\n if(!isNaN(fragToPTS)) {\n // update fragment duration.\n // it helps to fix drifts between playlist reported duration and fragment real duration\n if (toIdx > fromIdx) {\n fragFrom.duration = fragToPTS-fragFrom.start;\n if(fragFrom.duration < 0) {\n logger.error(`negative duration computed for frag ${fragFrom.sn},level ${fragFrom.level}, there should be some duration drift between playlist and fragment!`);\n }\n } else {\n fragTo.duration = fragFrom.start - fragToPTS;\n if(fragTo.duration < 0) {\n logger.error(`negative duration computed for frag ${fragTo.sn},level ${fragTo.level}, there should be some duration drift between playlist and fragment!`);\n }\n }\n } else {\n // we dont know startPTS[toIdx]\n if (toIdx > fromIdx) {\n fragTo.start = fragFrom.start + fragFrom.duration;\n } else {\n fragTo.start = fragFrom.start - fragTo.duration;\n }\n }\n }\n}\n\nexport default LevelHelper;\n", - "/**\n * HLS interface\n */\n'use strict';\n\nimport Event from './events';\nimport {ErrorTypes, ErrorDetails} from './errors';\nimport PlaylistLoader from './loader/playlist-loader';\nimport FragmentLoader from './loader/fragment-loader';\nimport AbrController from './controller/abr-controller';\nimport BufferController from './controller/buffer-controller';\nimport StreamController from './controller/stream-controller';\nimport LevelController from './controller/level-controller';\nimport TimelineController from './controller/timeline-controller';\n//import FPSController from './controller/fps-controller';\nimport {logger, enableLogs} from './utils/logger';\nimport XhrLoader from './utils/xhr-loader';\nimport EventEmitter from 'events';\nimport KeyLoader from './loader/key-loader';\n\nclass Hls {\n\n static isSupported() {\n return (window.MediaSource && window.MediaSource.isTypeSupported('video/mp4; codecs=\"avc1.42E01E,mp4a.40.2\"'));\n }\n\n static get Events() {\n return Event;\n }\n\n static get ErrorTypes() {\n return ErrorTypes;\n }\n\n static get ErrorDetails() {\n return ErrorDetails;\n }\n\n static get DefaultConfig() {\n if(!Hls.defaultConfig) {\n Hls.defaultConfig = {\n autoStartLoad: true,\n debug: false,\n maxBufferLength: 30,\n maxBufferSize: 60 * 1000 * 1000,\n maxBufferHole: 0.5,\n maxSeekHole: 2,\n liveSyncDurationCount:3,\n liveMaxLatencyDurationCount: Infinity,\n liveSyncDuration: undefined,\n liveMaxLatencyDuration: undefined,\n maxMaxBufferLength: 600,\n enableWorker: true,\n enableSoftwareAES: true,\n manifestLoadingTimeOut: 10000,\n manifestLoadingMaxRetry: 1,\n manifestLoadingRetryDelay: 1000,\n levelLoadingTimeOut: 10000,\n levelLoadingMaxRetry: 4,\n levelLoadingRetryDelay: 1000,\n fragLoadingTimeOut: 20000,\n fragLoadingMaxRetry: 6,\n fragLoadingRetryDelay: 1000,\n fragLoadingLoopThreshold: 3,\n startFragPrefetch : false,\n // fpsDroppedMonitoringPeriod: 5000,\n // fpsDroppedMonitoringThreshold: 0.2,\n appendErrorMaxRetry: 3,\n loader: XhrLoader,\n fLoader: undefined,\n pLoader: undefined,\n abrController : AbrController,\n bufferController : BufferController,\n streamController: StreamController,\n timelineController: TimelineController,\n enableCEA708Captions: true,\n enableMP2TPassThrough : false\n };\n }\n return Hls.defaultConfig;\n }\n\n static set DefaultConfig(defaultConfig) {\n Hls.defaultConfig = defaultConfig;\n }\n\n constructor(config = {}) {\n var defaultConfig = Hls.DefaultConfig;\n\n if ((config.liveSyncDurationCount || config.liveMaxLatencyDurationCount) && (config.liveSyncDuration || config.liveMaxLatencyDuration)) {\n throw new Error('Illegal hls.js config: don\\'t mix up liveSyncDurationCount/liveMaxLatencyDurationCount and liveSyncDuration/liveMaxLatencyDuration');\n }\n\n for (var prop in defaultConfig) {\n if (prop in config) { continue; }\n config[prop] = defaultConfig[prop];\n }\n\n if (config.liveMaxLatencyDurationCount !== undefined && config.liveMaxLatencyDurationCount <= config.liveSyncDurationCount) {\n throw new Error('Illegal hls.js config: \"liveMaxLatencyDurationCount\" must be gt \"liveSyncDurationCount\"');\n }\n\n if (config.liveMaxLatencyDuration !== undefined && (config.liveMaxLatencyDuration <= config.liveSyncDuration || config.liveSyncDuration === undefined)) {\n throw new Error('Illegal hls.js config: \"liveMaxLatencyDuration\" must be gt \"liveSyncDuration\"');\n }\n\n enableLogs(config.debug);\n this.config = config;\n // observer setup\n var observer = this.observer = new EventEmitter();\n observer.trigger = function trigger (event, ...data) {\n observer.emit(event, event, ...data);\n };\n\n observer.off = function off (event, ...data) {\n observer.removeListener(event, ...data);\n };\n this.on = observer.on.bind(observer);\n this.off = observer.off.bind(observer);\n this.trigger = observer.trigger.bind(observer);\n this.playlistLoader = new PlaylistLoader(this);\n this.fragmentLoader = new FragmentLoader(this);\n this.levelController = new LevelController(this);\n this.abrController = new config.abrController(this);\n this.bufferController = new config.bufferController(this);\n this.streamController = new config.streamController(this);\n this.timelineController = new config.timelineController(this);\n this.keyLoader = new KeyLoader(this);\n //this.fpsController = new FPSController(this);\n }\n\n destroy() {\n logger.log('destroy');\n this.trigger(Event.DESTROYING);\n this.detachMedia();\n this.playlistLoader.destroy();\n this.fragmentLoader.destroy();\n this.levelController.destroy();\n this.bufferController.destroy();\n this.streamController.destroy();\n this.timelineController.destroy();\n this.keyLoader.destroy();\n //this.fpsController.destroy();\n this.url = null;\n this.observer.removeAllListeners();\n }\n\n attachMedia(media) {\n logger.log('attachMedia');\n this.media = media;\n this.trigger(Event.MEDIA_ATTACHING, {media: media});\n }\n\n detachMedia() {\n logger.log('detachMedia');\n this.trigger(Event.MEDIA_DETACHING);\n this.media = null;\n }\n\n loadSource(url) {\n logger.log(`loadSource:${url}`);\n this.url = url;\n // when attaching to a source URL, trigger a playlist load\n this.trigger(Event.MANIFEST_LOADING, {url: url});\n }\n\n startLoad() {\n logger.log('startLoad');\n this.streamController.startLoad();\n }\n\n swapAudioCodec() {\n logger.log('swapAudioCodec');\n this.streamController.swapAudioCodec();\n }\n\n recoverMediaError() {\n logger.log('recoverMediaError');\n var media = this.media;\n this.detachMedia();\n this.attachMedia(media);\n }\n\n /** Return all quality levels **/\n get levels() {\n return this.levelController.levels;\n }\n\n /** Return current playback quality level **/\n get currentLevel() {\n return this.streamController.currentLevel;\n }\n\n /* set quality level immediately (-1 for automatic level selection) */\n set currentLevel(newLevel) {\n logger.log(`set currentLevel:${newLevel}`);\n this.loadLevel = newLevel;\n this.streamController.immediateLevelSwitch();\n }\n\n /** Return next playback quality level (quality level of next fragment) **/\n get nextLevel() {\n return this.streamController.nextLevel;\n }\n\n /* set quality level for next fragment (-1 for automatic level selection) */\n set nextLevel(newLevel) {\n logger.log(`set nextLevel:${newLevel}`);\n this.levelController.manualLevel = newLevel;\n this.streamController.nextLevelSwitch();\n }\n\n /** Return the quality level of current/last loaded fragment **/\n get loadLevel() {\n return this.levelController.level;\n }\n\n /* set quality level for current/next loaded fragment (-1 for automatic level selection) */\n set loadLevel(newLevel) {\n logger.log(`set loadLevel:${newLevel}`);\n this.levelController.manualLevel = newLevel;\n }\n\n /** Return the quality level of next loaded fragment **/\n get nextLoadLevel() {\n return this.levelController.nextLoadLevel();\n }\n\n /** set quality level of next loaded fragment **/\n set nextLoadLevel(level) {\n this.levelController.level = level;\n }\n\n /** Return first level (index of first level referenced in manifest)\n **/\n get firstLevel() {\n return this.levelController.firstLevel;\n }\n\n /** set first level (index of first level referenced in manifest)\n **/\n set firstLevel(newLevel) {\n logger.log(`set firstLevel:${newLevel}`);\n this.levelController.firstLevel = newLevel;\n }\n\n /** Return start level (level of first fragment that will be played back)\n if not overrided by user, first level appearing in manifest will be used as start level\n if -1 : automatic start level selection, playback will start from level matching download bandwidth (determined from download of first segment)\n **/\n get startLevel() {\n return this.levelController.startLevel;\n }\n\n /** set start level (level of first fragment that will be played back)\n if not overrided by user, first level appearing in manifest will be used as start level\n if -1 : automatic start level selection, playback will start from level matching download bandwidth (determined from download of first segment)\n **/\n set startLevel(newLevel) {\n logger.log(`set startLevel:${newLevel}`);\n this.levelController.startLevel = newLevel;\n }\n\n /** Return the capping/max level value that could be used by automatic level selection algorithm **/\n get autoLevelCapping() {\n return this.abrController.autoLevelCapping;\n }\n\n /** set the capping/max level value that could be used by automatic level selection algorithm **/\n set autoLevelCapping(newLevel) {\n logger.log(`set autoLevelCapping:${newLevel}`);\n this.abrController.autoLevelCapping = newLevel;\n }\n\n /* check if we are in automatic level selection mode */\n get autoLevelEnabled() {\n return (this.levelController.manualLevel === -1);\n }\n\n /* return manual level */\n get manualLevel() {\n return this.levelController.manualLevel;\n }\n}\n\nexport default Hls;\n", + "/**\n * HLS interface\n */\n'use strict';\n\nimport Event from './events';\nimport {ErrorTypes, ErrorDetails} from './errors';\nimport PlaylistLoader from './loader/playlist-loader';\nimport FragmentLoader from './loader/fragment-loader';\nimport AbrController from './controller/abr-controller';\nimport BufferController from './controller/buffer-controller';\nimport StreamController from './controller/stream-controller';\nimport LevelController from './controller/level-controller';\nimport TimelineController from './controller/timeline-controller';\n//import FPSController from './controller/fps-controller';\nimport {logger, enableLogs} from './utils/logger';\nimport XhrLoader from './utils/xhr-loader';\nimport EventEmitter from 'events';\nimport KeyLoader from './loader/key-loader';\n\nclass Hls {\n\n static isSupported() {\n return (window.MediaSource && window.MediaSource.isTypeSupported('video/mp4; codecs=\"avc1.42E01E,mp4a.40.2\"'));\n }\n\n static get Events() {\n return Event;\n }\n\n static get ErrorTypes() {\n return ErrorTypes;\n }\n\n static get ErrorDetails() {\n return ErrorDetails;\n }\n\n static get DefaultConfig() {\n if(!Hls.defaultConfig) {\n Hls.defaultConfig = {\n autoStartLoad: true,\n debug: false,\n maxBufferLength: 30,\n maxBufferSize: 60 * 1000 * 1000,\n maxBufferHole: 0.5,\n maxSeekHole: 2,\n maxFragLookUpTolerance : 0.2,\n liveSyncDurationCount:3,\n liveMaxLatencyDurationCount: Infinity,\n liveSyncDuration: undefined,\n liveMaxLatencyDuration: undefined,\n maxMaxBufferLength: 600,\n enableWorker: true,\n enableSoftwareAES: true,\n manifestLoadingTimeOut: 10000,\n manifestLoadingMaxRetry: 1,\n manifestLoadingRetryDelay: 1000,\n levelLoadingTimeOut: 10000,\n levelLoadingMaxRetry: 4,\n levelLoadingRetryDelay: 1000,\n fragLoadingTimeOut: 20000,\n fragLoadingMaxRetry: 6,\n fragLoadingRetryDelay: 1000,\n fragLoadingLoopThreshold: 3,\n startFragPrefetch : false,\n // fpsDroppedMonitoringPeriod: 5000,\n // fpsDroppedMonitoringThreshold: 0.2,\n appendErrorMaxRetry: 3,\n loader: XhrLoader,\n fLoader: undefined,\n pLoader: undefined,\n abrController : AbrController,\n bufferController : BufferController,\n streamController: StreamController,\n timelineController: TimelineController,\n enableCEA708Captions: true,\n enableMP2TPassThrough : false\n };\n }\n return Hls.defaultConfig;\n }\n\n static set DefaultConfig(defaultConfig) {\n Hls.defaultConfig = defaultConfig;\n }\n\n constructor(config = {}) {\n var defaultConfig = Hls.DefaultConfig;\n\n if ((config.liveSyncDurationCount || config.liveMaxLatencyDurationCount) && (config.liveSyncDuration || config.liveMaxLatencyDuration)) {\n throw new Error('Illegal hls.js config: don\\'t mix up liveSyncDurationCount/liveMaxLatencyDurationCount and liveSyncDuration/liveMaxLatencyDuration');\n }\n\n for (var prop in defaultConfig) {\n if (prop in config) { continue; }\n config[prop] = defaultConfig[prop];\n }\n\n if (config.liveMaxLatencyDurationCount !== undefined && config.liveMaxLatencyDurationCount <= config.liveSyncDurationCount) {\n throw new Error('Illegal hls.js config: \"liveMaxLatencyDurationCount\" must be gt \"liveSyncDurationCount\"');\n }\n\n if (config.liveMaxLatencyDuration !== undefined && (config.liveMaxLatencyDuration <= config.liveSyncDuration || config.liveSyncDuration === undefined)) {\n throw new Error('Illegal hls.js config: \"liveMaxLatencyDuration\" must be gt \"liveSyncDuration\"');\n }\n\n enableLogs(config.debug);\n this.config = config;\n // observer setup\n var observer = this.observer = new EventEmitter();\n observer.trigger = function trigger (event, ...data) {\n observer.emit(event, event, ...data);\n };\n\n observer.off = function off (event, ...data) {\n observer.removeListener(event, ...data);\n };\n this.on = observer.on.bind(observer);\n this.off = observer.off.bind(observer);\n this.trigger = observer.trigger.bind(observer);\n this.playlistLoader = new PlaylistLoader(this);\n this.fragmentLoader = new FragmentLoader(this);\n this.levelController = new LevelController(this);\n this.abrController = new config.abrController(this);\n this.bufferController = new config.bufferController(this);\n this.streamController = new config.streamController(this);\n this.timelineController = new config.timelineController(this);\n this.keyLoader = new KeyLoader(this);\n //this.fpsController = new FPSController(this);\n }\n\n destroy() {\n logger.log('destroy');\n this.trigger(Event.DESTROYING);\n this.detachMedia();\n this.playlistLoader.destroy();\n this.fragmentLoader.destroy();\n this.levelController.destroy();\n this.bufferController.destroy();\n this.streamController.destroy();\n this.timelineController.destroy();\n this.keyLoader.destroy();\n //this.fpsController.destroy();\n this.url = null;\n this.observer.removeAllListeners();\n }\n\n attachMedia(media) {\n logger.log('attachMedia');\n this.media = media;\n this.trigger(Event.MEDIA_ATTACHING, {media: media});\n }\n\n detachMedia() {\n logger.log('detachMedia');\n this.trigger(Event.MEDIA_DETACHING);\n this.media = null;\n }\n\n loadSource(url) {\n logger.log(`loadSource:${url}`);\n this.url = url;\n // when attaching to a source URL, trigger a playlist load\n this.trigger(Event.MANIFEST_LOADING, {url: url});\n }\n\n startLoad() {\n logger.log('startLoad');\n this.streamController.startLoad();\n }\n\n swapAudioCodec() {\n logger.log('swapAudioCodec');\n this.streamController.swapAudioCodec();\n }\n\n recoverMediaError() {\n logger.log('recoverMediaError');\n var media = this.media;\n this.detachMedia();\n this.attachMedia(media);\n }\n\n /** Return all quality levels **/\n get levels() {\n return this.levelController.levels;\n }\n\n /** Return current playback quality level **/\n get currentLevel() {\n return this.streamController.currentLevel;\n }\n\n /* set quality level immediately (-1 for automatic level selection) */\n set currentLevel(newLevel) {\n logger.log(`set currentLevel:${newLevel}`);\n this.loadLevel = newLevel;\n this.streamController.immediateLevelSwitch();\n }\n\n /** Return next playback quality level (quality level of next fragment) **/\n get nextLevel() {\n return this.streamController.nextLevel;\n }\n\n /* set quality level for next fragment (-1 for automatic level selection) */\n set nextLevel(newLevel) {\n logger.log(`set nextLevel:${newLevel}`);\n this.levelController.manualLevel = newLevel;\n this.streamController.nextLevelSwitch();\n }\n\n /** Return the quality level of current/last loaded fragment **/\n get loadLevel() {\n return this.levelController.level;\n }\n\n /* set quality level for current/next loaded fragment (-1 for automatic level selection) */\n set loadLevel(newLevel) {\n logger.log(`set loadLevel:${newLevel}`);\n this.levelController.manualLevel = newLevel;\n }\n\n /** Return the quality level of next loaded fragment **/\n get nextLoadLevel() {\n return this.levelController.nextLoadLevel;\n }\n\n /** set quality level of next loaded fragment **/\n set nextLoadLevel(level) {\n this.levelController.nextLoadLevel = level;\n }\n\n /** Return first level (index of first level referenced in manifest)\n **/\n get firstLevel() {\n return this.levelController.firstLevel;\n }\n\n /** set first level (index of first level referenced in manifest)\n **/\n set firstLevel(newLevel) {\n logger.log(`set firstLevel:${newLevel}`);\n this.levelController.firstLevel = newLevel;\n }\n\n /** Return start level (level of first fragment that will be played back)\n if not overrided by user, first level appearing in manifest will be used as start level\n if -1 : automatic start level selection, playback will start from level matching download bandwidth (determined from download of first segment)\n **/\n get startLevel() {\n return this.levelController.startLevel;\n }\n\n /** set start level (level of first fragment that will be played back)\n if not overrided by user, first level appearing in manifest will be used as start level\n if -1 : automatic start level selection, playback will start from level matching download bandwidth (determined from download of first segment)\n **/\n set startLevel(newLevel) {\n logger.log(`set startLevel:${newLevel}`);\n this.levelController.startLevel = newLevel;\n }\n\n /** Return the capping/max level value that could be used by automatic level selection algorithm **/\n get autoLevelCapping() {\n return this.abrController.autoLevelCapping;\n }\n\n /** set the capping/max level value that could be used by automatic level selection algorithm **/\n set autoLevelCapping(newLevel) {\n logger.log(`set autoLevelCapping:${newLevel}`);\n this.abrController.autoLevelCapping = newLevel;\n }\n\n /* check if we are in automatic level selection mode */\n get autoLevelEnabled() {\n return (this.levelController.manualLevel === -1);\n }\n\n /* return manual level */\n get manualLevel() {\n return this.levelController.manualLevel;\n }\n}\n\nexport default Hls;\n", "// This is mostly for support of the es6 module export\n// syntax with the babel compiler, it looks like it doesnt support\n// function exports like we are used to in node/commonjs\nmodule.exports = require('./hls.js').default;\n", "/*\n * Fragment Loader\n*/\n\nimport Event from '../events';\nimport EventHandler from '../event-handler';\nimport {ErrorTypes, ErrorDetails} from '../errors';\n\nclass FragmentLoader extends EventHandler {\n\n constructor(hls) {\n super(hls, Event.FRAG_LOADING);\n }\n\n destroy() {\n if (this.loader) {\n this.loader.destroy();\n this.loader = null;\n }\n EventHandler.prototype.destroy.call(this);\n }\n\n onFragLoading(data) {\n var frag = data.frag;\n this.frag = frag;\n this.frag.loaded = 0;\n var config = this.hls.config;\n frag.loader = this.loader = typeof(config.fLoader) !== 'undefined' ? new config.fLoader(config) : new config.loader(config);\n 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);\n }\n\n loadsuccess(event, stats) {\n var payload = event.currentTarget.response;\n stats.length = payload.byteLength;\n // detach fragment loader on load success\n this.frag.loader = undefined;\n this.hls.trigger(Event.FRAG_LOADED, {payload: payload, frag: this.frag, stats: stats});\n }\n\n loaderror(event) {\n if (this.loader) {\n this.loader.abort();\n }\n this.hls.trigger(Event.ERROR, {type: ErrorTypes.NETWORK_ERROR, details: ErrorDetails.FRAG_LOAD_ERROR, fatal: false, frag: this.frag, response: event});\n }\n\n loadtimeout() {\n if (this.loader) {\n this.loader.abort();\n }\n this.hls.trigger(Event.ERROR, {type: ErrorTypes.NETWORK_ERROR, details: ErrorDetails.FRAG_LOAD_TIMEOUT, fatal: false, frag: this.frag});\n }\n\n loadprogress(event, stats) {\n this.frag.loaded = stats.loaded;\n this.hls.trigger(Event.FRAG_LOAD_PROGRESS, {frag: this.frag, stats: stats});\n }\n}\n\nexport default FragmentLoader;\n", "/*\n * Decrypt key Loader\n*/\n\nimport Event from '../events';\nimport EventHandler from '../event-handler';\nimport {ErrorTypes, ErrorDetails} from '../errors';\n\nclass KeyLoader extends EventHandler {\n\n constructor(hls) {\n super(hls, Event.KEY_LOADING);\n this.decryptkey = null;\n this.decrypturl = null;\n }\n\n destroy() {\n if (this.loader) {\n this.loader.destroy();\n this.loader = null;\n }\n EventHandler.prototype.destroy.call(this);\n }\n\n onKeyLoading(data) {\n var frag = this.frag = data.frag,\n decryptdata = frag.decryptdata,\n uri = decryptdata.uri;\n // if uri is different from previous one or if decrypt key not retrieved yet\n if (uri !== this.decrypturl || this.decryptkey === null) {\n var config = this.hls.config;\n frag.loader = this.loader = new config.loader(config);\n this.decrypturl = uri;\n this.decryptkey = null;\n 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);\n } else if (this.decryptkey) {\n // we already loaded this key, return it\n decryptdata.key = this.decryptkey;\n this.hls.trigger(Event.KEY_LOADED, {frag: frag});\n }\n }\n\n loadsuccess(event) {\n var frag = this.frag;\n this.decryptkey = frag.decryptdata.key = new Uint8Array(event.currentTarget.response);\n // detach fragment loader on load success\n frag.loader = undefined;\n this.hls.trigger(Event.KEY_LOADED, {frag: frag});\n }\n\n loaderror(event) {\n if (this.loader) {\n this.loader.abort();\n }\n this.hls.trigger(Event.ERROR, {type: ErrorTypes.NETWORK_ERROR, details: ErrorDetails.KEY_LOAD_ERROR, fatal: false, frag: this.frag, response: event});\n }\n\n loadtimeout() {\n if (this.loader) {\n this.loader.abort();\n }\n this.hls.trigger(Event.ERROR, {type: ErrorTypes.NETWORK_ERROR, details: ErrorDetails.KEY_LOAD_TIMEOUT, fatal: false, frag: this.frag});\n }\n\n loadprogress() {\n\n }\n}\n\nexport default KeyLoader;\n", diff --git a/dashboard-ui/bower_components/hls.js/dist/hls.min.js b/dashboard-ui/bower_components/hls.js/dist/hls.min.js index ed85d850fc..b4c7cd6f05 100644 --- a/dashboard-ui/bower_components/hls.js/dist/hls.min.js +++ b/dashboard-ui/bower_components/hls.js/dist/hls.min.js @@ -1,4 +1,4 @@ -!function(e){if("object"==typeof exports&&"undefined"!=typeof module)module.exports=e();else if("function"==typeof define&&define.amd)define([],e);else{var t;t="undefined"!=typeof window?window:"undefined"!=typeof global?global:"undefined"!=typeof self?self:this,t.Hls=e()}}(function(){return function s(e,t,r){function n(a,d){if(!t[a]){if(!e[a]){var l="function"==typeof require&&require;if(!d&&l)return l(a,!0);if(i)return i(a,!0);var u=new Error("Cannot find module '"+a+"'");throw u.code="MODULE_NOT_FOUND",u}var o=t[a]={exports:{}};e[a][0].call(o.exports,function(t){var r=e[a][1][t];return n(r?r:t)},o,o.exports,s,e,t,r)}return t[a].exports}for(var i="function"==typeof require&&require,a=0;ae||isNaN(e))throw TypeError("n must be a positive number");return this._maxListeners=e,this},e.prototype.emit=function(l){var s,e,u,a,i,o;if(this._events||(this._events={}),"error"===l&&(!this._events.error||r(this._events.error)&&!this._events.error.length)){if(s=arguments[1],s instanceof Error)throw s;throw TypeError('Uncaught, unspecified "error" event.')}if(e=this._events[l],n(e))return!1;if(t(e))switch(arguments.length){case 1:e.call(this);break;case 2:e.call(this,arguments[1]);break;case 3:e.call(this,arguments[1],arguments[2]);break;default:a=Array.prototype.slice.call(arguments,1),e.apply(this,a)}else if(r(e))for(a=Array.prototype.slice.call(arguments,1),o=e.slice(),u=o.length,i=0;u>i;i++)o[i].apply(this,a);return!0},e.prototype.addListener=function(a,i){var s;if(!t(i))throw TypeError("listener must be a function");return this._events||(this._events={}),this._events.newListener&&this.emit("newListener",a,t(i.listener)?i.listener:i),this._events[a]?r(this._events[a])?this._events[a].push(i):this._events[a]=[this._events[a],i]:this._events[a]=i,r(this._events[a])&&!this._events[a].warned&&(s=n(this._maxListeners)?e.defaultMaxListeners:this._maxListeners,s&&s>0&&this._events[a].length>s&&(this._events[a].warned=!0,"function"==typeof console.trace)),this},e.prototype.on=e.prototype.addListener,e.prototype.once=function(n,e){function r(){this.removeListener(n,r),a||(a=!0,e.apply(this,arguments))}if(!t(e))throw TypeError("listener must be a function");var a=!1;return r.listener=e,this.on(n,r),this},e.prototype.removeListener=function(a,n){var e,s,o,i;if(!t(n))throw TypeError("listener must be a function");if(!this._events||!this._events[a])return this;if(e=this._events[a],o=e.length,s=-1,e===n||t(e.listener)&&e.listener===n)delete this._events[a],this._events.removeListener&&this.emit("removeListener",a,n);else if(r(e)){for(i=o;i-- >0;)if(e[i]===n||e[i].listener&&e[i].listener===n){s=i;break}if(0>s)return this;1===e.length?(e.length=0,delete this._events[a]):e.splice(s,1),this._events.removeListener&&this.emit("removeListener",a,n)}return this},e.prototype.removeAllListeners=function(r){var n,e;if(!this._events)return this;if(!this._events.removeListener)return 0===arguments.length?this._events={}:this._events[r]&&delete this._events[r],this;if(0===arguments.length){for(n in this._events)"removeListener"!==n&&this.removeAllListeners(n);return this.removeAllListeners("removeListener"),this._events={},this}if(e=this._events[r],t(e))this.removeListener(r,e);else if(e)for(;e.length;)this.removeListener(r,e[e.length-1]);return delete this._events[r],this},e.prototype.listeners=function(e){var r;return r=this._events&&this._events[e]?t(this._events[e])?[this._events[e]]:this._events[e].slice():[]},e.prototype.listenerCount=function(r){if(this._events){var e=this._events[r];if(t(e))return 1;if(e)return e.length}return 0},e.listenerCount=function(e,t){return e.listenerCount(t)}},{}],2:[function(i,n,s){var a=arguments[3],e=arguments[4],r=arguments[5],t=JSON.stringify;n.exports=function(l){for(var n,s=Object.keys(r),i=0,d=s.length;d>i;i++){var o=s[i],u=r[o].exports;if(u===l||u.default===l){n=o;break}}if(!n){n=Math.floor(Math.pow(16,8)*Math.random()).toString(16);for(var f={},i=0,d=s.length;d>i;i++){var o=s[i];f[o]=o}e[n]=[Function(["require","module","exports"],"("+l+")(self)"),f]}var h=Math.floor(Math.pow(16,8)*Math.random()).toString(16),c={};c[n]=n,e[h]=[Function(["require"],"var f = require("+t(n)+");(f.default ? f.default : f)(self);"),c];var g="("+a+")({"+Object.keys(e).map(function(r){return t(r)+":["+e[r][0]+","+t(e[r][1])+"]"}).join(",")+"},{},["+t(h)+"])",v=window.URL||window.webkitURL||window.mozURL||window.msURL;return new Worker(v.createObjectURL(new Blob([g],{type:"text/javascript"})))}},{}],3:[function(e,h,t){"use strict";function r(e){return e&&e.__esModule?e:{default:e}}function a(e,t){if(!(e instanceof t))throw new TypeError("Cannot call a class as a function")}function i(t,e){if(!t)throw new ReferenceError("this hasn't been initialised - super() hasn't been called");return!e||"object"!=typeof e&&"function"!=typeof e?t:e}function f(t,e){if("function"!=typeof e&&null!==e)throw new TypeError("Super expression must either be null or a function, not "+typeof e);t.prototype=Object.create(e&&e.prototype,{constructor:{value:t,enumerable:!1,writable:!0,configurable:!0}}),e&&(Object.setPrototypeOf?Object.setPrototypeOf(t,e):t.__proto__=e)}var o=function(){function e(n,r){for(var t=0;t=e;e++)if(r=e<=this.lastfetchlevel?.8*n:.7*n,ri.config.appendErrorMaxRetry)return t.logger.log("fail "+i.config.appendErrorMaxRetry+" times to append segment in sourceBuffer"),a=[],n.fatal=!0,void i.trigger(e.default.ERROR,n);n.fatal=!1,i.trigger(e.default.ERROR,n)}else a=[],n.details=r.ErrorDetails.BUFFER_FULL_ERROR,i.trigger(e.default.ERROR,n)}}}}},{key:"flushBuffer",value:function(l,s){var e,r,o,i,n,a;if(this.flushBufferCounter.5)return this.flushBufferCounter++,t.logger.log("flush "+u+" ["+n+","+a+"], of ["+o+","+i+"], pos:"+this.media.currentTime),e.remove(n,a),!1}else t.logger.warn("abort flushing too many retries");return t.logger.log("buffer flushed"),!0}}]),n}(s.default);a.default=o},{"../errors":19,"../event-handler":20,"../events":21,"../utils/logger":34}],5:[function(n,g,a){"use strict";function i(e){return e&&e.__esModule?e:{default:e}}function u(e,t){if(!(e instanceof t))throw new TypeError("Cannot call a class as a function")}function h(t,e){if(!t)throw new ReferenceError("this hasn't been initialised - super() hasn't been called");return!e||"object"!=typeof e&&"function"!=typeof e?t:e}function s(t,e){if("function"!=typeof e&&null!==e)throw new TypeError("Super expression must either be null or a function, not "+typeof e);t.prototype=Object.create(e&&e.prototype,{constructor:{value:t,enumerable:!1,writable:!0,configurable:!0}}),e&&(Object.setPrototypeOf?Object.setPrototypeOf(t,e):t.__proto__=e)}var c=function(){function e(n,r){for(var t=0;t=0&&n1&&setTimeout(this.tick,1),this.ticks=0)}},{key:"doTick",value:function(){var h,l,i,u=this.hls,s=u.config;switch(this.state){case e.ERROR:case e.PAUSED:break;case e.STARTING:this.startLevel=u.startLevel,-1===this.startLevel&&(this.startLevel=0,this.fragBitrateTest=!0),this.level=u.nextLoadLevel=this.startLevel,this.state=e.WAITING_LEVEL,this.loadedmetadata=!1;break;case e.IDLE:if(!this.media&&(this.startFragRequested||!s.startFragPrefetch))break;h=this.loadedmetadata?this.media.currentTime:this.nextLoadPosition,l=this.startFragRequested===!1?this.startLevel:u.nextLoadLevel;var v,S=this.bufferInfo(h,s.maxBufferHole),I=S.len,f=S.end,g=this.fragPrevious;if(this.levels[l].hasOwnProperty("bitrate")?(v=Math.max(8*s.maxBufferSize/this.levels[l].bitrate,s.maxBufferLength),v=Math.min(v,s.maxMaxBufferLength)):v=s.maxBufferLength,v>I){if(u.nextLoadLevel=l,this.level=l,i=this.levels[l].details,"undefined"==typeof i||i.live&&this.levelLastLoaded!==l){this.state=e.WAITING_LEVEL;break}var d=i.fragments,c=d.length,m=d[0].start,T=d[c-1].start+d[c-1].duration,a=void 0;if(i.live){var M=void 0!==s.liveMaxLatencyDuration?s.liveMaxLatencyDuration:s.liveMaxLatencyDurationCount*i.targetduration;if(f=i.startSN&&E<=i.endSN&&(a=d[E-i.startSN],t.logger.log("live playlist, switching playlist, load frag with next SN: "+a.sn))}a||(a=d[Math.min(c-1,Math.round(c/2))],t.logger.log("live playlist, switching playlist, unknown, load middle frag : "+a.sn))}}else m>f&&(a=d[0]);if(!a){var y;y=T>f?p.default.search(d,function(e){return e.start+e.duration<=f?1:e.start>f?-1:0}):d[c-1],y&&(a=y,m=y.start,g&&a.level===g.level&&a.sn===g.sn&&(a.sn1&&(a.expectedLen=Math.round(a.duration*this.levels[l].bitrate/8),a.trequest=performance.now()),void 0!==this.fragLoadIdx?this.fragLoadIdx++:this.fragLoadIdx=0,a.loadCounter){a.loadCounter++;var A=s.fragLoadingLoopThreshold;if(a.loadCounter>A&&Math.abs(this.fragLoadIdx-a.loadIdx)1){var k=performance.now()-o.trequest;if(k>500*o.duration){var L=1e3*o.loaded/k;o.expectedLenb&&R>w&&(t.logger.warn("loading too slow, abort fragment loading"),t.logger.log("fragLoadedDelay/bufferStarvationDelay/fragLevelNextLoadedDelay :"+R.toFixed(1)+"/"+b.toFixed(1)+"/"+w.toFixed(1)),o.loader.abort(),u.trigger(r.default.FRAG_LOAD_EMERGENCY_ABORTED,{frag:o}),this.state=e.IDLE)}}break;case e.FRAG_LOADING_WAITING_RETRY:var x=performance.now(),D=this.retryDate,O=this.media,P=O&&O.seeking;(!D||x>=D||P)&&(t.logger.log("mediaController: retryDate reached, switch back to IDLE state"),this.state=e.IDLE);break;case e.PARSING:break;case e.PARSED:break;case e.ENDED:}this._checkBuffer(),this._checkFragmentChanged()}},{key:"bufferInfo",value:function(a,i){var r=this.media;if(r){var e,t=r.buffered,n=[];for(e=0;ed&&(t[u-1].end=r[e].end):t.push(r[e])}else t.push(r[e])}for(e=0,o=0,l=a=n;e=i&&f>n)l=i,a=f,o=a-n;else if(i>n+s){h=i;break}}return{len:o,start:l,end:a,nextStart:h}}},{key:"getBufferRange",value:function(n){var e,t,r=this.bufferRange;if(r)for(e=r.length-1;e>=0;e--)if(t=r[e],n>=t.start&&n<=t.end)return t;return null}},{key:"followingBufferRange",value:function(e){return e?this.getBufferRange(e.end+.5):null}},{key:"isBuffered",value:function(r){for(var n=this.media,t=n.buffered,e=0;e=t.start(e)&&r<=t.end(e))return!0;return!1}},{key:"_checkFragmentChanged",value:function(){var t,e,n=this.media;if(n&&n.seeking===!1&&(e=n.currentTime,e>n.playbackRate*this.lastCurrentTime&&(this.lastCurrentTime=e),this.isBuffered(e)?t=this.getBufferRange(e):this.isBuffered(e+.1)&&(t=this.getBufferRange(e+.1)),t)){var a=t.frag;a!==this.fragPlaying&&(this.fragPlaying=a,this.hls.trigger(r.default.FRAG_CHANGED,{frag:a}))}}},{key:"immediateLevelSwitch",value:function(){t.logger.log("immediateLevelSwitch"),this.immediateSwitch||(this.immediateSwitch=!0,this.previouslyPaused=this.media.paused,this.media.pause());var n=this.fragCurrent;n&&n.loader&&n.loader.abort(),this.fragCurrent=null,this.hls.trigger(r.default.BUFFER_FLUSHING,{startOffset:0,endOffset:Number.POSITIVE_INFINITY}),this.state=e.PAUSED,this.fragLoadIdx+=2*this.config.fragLoadingLoopThreshold,this.tick()}},{key:"immediateLevelSwitchEnd",value:function(){this.immediateSwitch=!1,this.media.currentTime-=1e-4,this.previouslyPaused||this.media.play()}},{key:"nextLevelSwitch",value:function(){var a,n,t;if(n=this.getBufferRange(this.media.currentTime),n&&n.start>1&&(this.hls.trigger(r.default.BUFFER_FLUSHING,{startOffset:0,endOffset:n.start-1}),this.state=e.PAUSED),this.media.paused)a=0;else{var o=this.hls.nextLoadLevel,l=this.levels[o],s=this.fragLastKbps;a=s&&this.fragCurrent?this.fragCurrent.duration*l.bitrate/(1e3*s)+1:0}if(t=this.getBufferRange(this.media.currentTime+a),t&&(t=this.followingBufferRange(t))){this.hls.trigger(r.default.BUFFER_FLUSHING,{startOffset:t.start,endOffset:Number.POSITIVE_INFINITY}),this.state=e.PAUSED;var i=this.fragCurrent;i&&i.loader&&i.loader.abort(),this.fragCurrent=null,this.fragLoadIdx+=2*this.config.fragLoadingLoopThreshold}}},{key:"onMediaAttached",value:function(t){var e=this.media=t.media;this.onvseeking=this.onMediaSeeking.bind(this),this.onvseeked=this.onMediaSeeked.bind(this),this.onvended=this.onMediaEnded.bind(this),e.addEventListener("seeking",this.onvseeking),e.addEventListener("seeked",this.onvseeked),e.addEventListener("ended",this.onvended),this.levels&&this.config.autoStartLoad&&this.startLoad()}},{key:"onMediaDetaching",value:function(){var e=this.media;e&&e.ended&&(t.logger.log("MSE detaching and video ended, reset startPosition"),this.startPosition=this.lastCurrentTime=0);var r=this.levels;r&&r.forEach(function(e){e.details&&e.details.fragments.forEach(function(e){e.loadCounter=void 0})}),e&&(e.removeEventListener("seeking",this.onvseeking),e.removeEventListener("seeked",this.onvseeked),e.removeEventListener("ended",this.onvended),this.onvseeking=this.onvseeked=this.onvended=null),this.media=null,this.loadedmetadata=!1,this.stop()}},{key:"onMediaSeeking",value:function(){if(this.state===e.FRAG_LOADING){if(0===this.bufferInfo(this.media.currentTime,this.config.maxBufferHole).len){t.logger.log("seeking outside of buffer while fragment load in progress, cancel fragment load");var r=this.fragCurrent;r&&(r.loader&&r.loader.abort(),this.fragCurrent=null),this.fragPrevious=null,this.state=e.IDLE}}else this.state===e.ENDED&&(this.state=e.IDLE);this.media&&(this.lastCurrentTime=this.media.currentTime),void 0!==this.fragLoadIdx&&(this.fragLoadIdx+=2*this.config.fragLoadingLoopThreshold),this.tick()}},{key:"onMediaSeeked",value:function(){this.tick()}},{key:"onMediaEnded",value:function(){t.logger.log("media ended"),this.startPosition=this.lastCurrentTime=0}},{key:"onManifestParsed",value:function(r){var e,n=!1,a=!1;r.levels.forEach(function(t){e=t.audioCodec,e&&(-1!==e.indexOf("mp4a.40.2")&&(n=!0),-1!==e.indexOf("mp4a.40.5")&&(a=!0))}),this.audioCodecSwitch=n&&a,this.audioCodecSwitch&&t.logger.log("both AAC/HE-AAC audio found in levels; declaring level codec as HE-AAC"),this.levels=r.levels,this.startLevelLoaded=!1,this.startFragRequested=!1,this.config.autoStartLoad&&this.startLoad()}},{key:"onLevelLoaded",value:function(s){var n=s.details,a=s.level,o=this.levels[a],u=n.totalduration,i=0;if(t.logger.log("level "+a+" loaded ["+n.startSN+","+n.endSN+"],duration:"+u),this.levelLastLoaded=a,n.live){var d=o.details;d?(l.default.mergeDetails(d,n),i=n.fragments[0].start,n.PTSKnown?t.logger.log("live playlist sliding:"+i.toFixed(3)):t.logger.log("live playlist - outdated PTS, unknown sliding")):(n.PTSKnown=!1,t.logger.log("live playlist - first load, unknown sliding"))}else n.PTSKnown=!1;if(o.details=n, -this.hls.trigger(r.default.LEVEL_UPDATED,{details:n,level:a}),this.startFragRequested===!1){if(n.live){var f=void 0!==this.config.liveSyncDuration?this.config.liveSyncDuration:this.config.liveSyncDurationCount*n.targetduration;this.startPosition=Math.max(0,i+u-f)}this.nextLoadPosition=this.startPosition}this.state===e.WAITING_LEVEL&&(this.state=e.IDLE),this.tick()}},{key:"onKeyLoaded",value:function(){this.state===e.KEY_LOADING&&(this.state=e.IDLE,this.tick())}},{key:"onFragLoaded",value:function(a){var n=this.fragCurrent;if(this.state===e.FRAG_LOADING&&n&&a.frag.level===n.level&&a.frag.sn===n.sn)if(this.fragBitrateTest===!0)this.state=e.IDLE,this.fragBitrateTest=!1,a.stats.tparsed=a.stats.tbuffered=performance.now(),this.hls.trigger(r.default.FRAG_BUFFERED,{stats:a.stats,frag:n});else{this.state=e.PARSING,this.stats=a.stats;var s=this.levels[this.level],o=s.details,d=o.totalduration,f=n.start,l=n.level,u=n.sn,i=s.audioCodec||this.config.defaultAudioCodec;this.audioCodecSwap&&(t.logger.log("swapping playlist audio codec"),void 0===i&&(i=this.lastAudioCodec),i&&(i=-1!==i.indexOf("mp4a.40.5")?"mp4a.40.2":"mp4a.40.5")),this.pendingAppending=0,t.logger.log("Demuxing "+u+" of ["+o.startSN+" ,"+o.endSN+"],level "+l),this.demuxer.push(a.payload,i,s.videoCodec,f,n.cc,l,u,d,n.decryptdata)}this.fragLoadError=0}},{key:"onFragParsingInitSegment",value:function(l){if(this.state===e.PARSING){var o,n,a=l.tracks;if(n=a.audio){var i=this.levels[this.level].audioCodec,u=navigator.userAgent.toLowerCase();i&&this.audioCodecSwap&&(t.logger.log("swapping playlist audio codec"),i=-1!==i.indexOf("mp4a.40.5")?"mp4a.40.2":"mp4a.40.5"),this.audioCodecSwitch&&1!==n.metadata.channelCount&&-1===u.indexOf("firefox")&&(i="mp4a.40.5"),-1!==u.indexOf("android")&&(i="mp4a.40.2",t.logger.log("Android: force audio codec to"+i)),n.levelCodec=i}if(n=a.video,n&&(n.levelCodec=this.levels[this.level].videoCodec),l.unique){var s={codec:"",levelCodec:""};for(o in l.tracks)n=a[o],s.container=n.container,s.codec&&(s.codec+=",",s.levelCodec+=","),n.codec&&(s.codec+=n.codec),n.levelCodec&&(s.levelCodec+=n.levelCodec);a={audiovideo:s}}this.hls.trigger(r.default.BUFFER_CODECS,a);for(o in a){n=a[o],t.logger.log("track:"+o+",container:"+n.container+",codecs[level/parsed]=["+n.levelCodec+"/"+n.codec+"]");var d=n.initSegment;d&&(this.pendingAppending++,this.hls.trigger(r.default.BUFFER_APPENDING,{type:o,data:d}))}this.tick()}}},{key:"onFragParsingData",value:function(n){var o=this;if(this.state===e.PARSING){this.tparse2=Date.now();var a=this.levels[this.level],i=this.fragCurrent;t.logger.log("parsed "+n.type+",PTS:["+n.startPTS.toFixed(3)+","+n.endPTS.toFixed(3)+"],DTS:["+n.startDTS.toFixed(3)+"/"+n.endDTS.toFixed(3)+"],nb:"+n.nb);var u=l.default.updateFragPTS(a.details,i.sn,n.startPTS,n.endPTS),s=this.hls;s.trigger(r.default.LEVEL_PTS_UPDATED,{details:a.details,level:this.level,drift:u}),[n.data1,n.data2].forEach(function(e){e&&(o.pendingAppending++,s.trigger(r.default.BUFFER_APPENDING,{type:n.type,data:e}))}),this.nextLoadPosition=n.endPTS,this.bufferRange.push({type:n.type,start:n.startPTS,end:n.endPTS,frag:i}),this.tick()}else t.logger.warn("not in PARSING state but "+this.state+", ignoring FRAG_PARSING_DATA event")}},{key:"onFragParsed",value:function(){this.state===e.PARSING&&(this.stats.tparsed=performance.now(),this.state=e.PARSED,this._checkAppendedParsed())}},{key:"onBufferAppended",value:function(){switch(this.state){case e.PARSING:case e.PARSED:this.pendingAppending--,this._checkAppendedParsed()}}},{key:"_checkAppendedParsed",value:function(){if(this.state===e.PARSED&&0===this.pendingAppending){var a=this.fragCurrent,n=this.stats;a&&(this.fragPrevious=a,n.tbuffered=performance.now(),this.fragLastKbps=Math.round(8*n.length/(n.tbuffered-n.tfirst)),this.hls.trigger(r.default.FRAG_BUFFERED,{stats:n,frag:a}),t.logger.log("media buffered : "+this.timeRangesToString(this.media.buffered)),this.state=e.IDLE),this.tick()}}},{key:"onError",value:function(a){switch(a.details){case n.ErrorDetails.FRAG_LOAD_ERROR:case n.ErrorDetails.FRAG_LOAD_TIMEOUT:if(!a.fatal){var i=this.fragLoadError;if(i?i++:i=1,i<=this.config.fragLoadingMaxRetry){this.fragLoadError=i,a.frag.loadCounter=0;var s=Math.min(Math.pow(2,i-1)*this.config.fragLoadingRetryDelay,64e3);t.logger.warn("mediaController: frag loading failed, retry in "+s+" ms"),this.retryDate=performance.now()+s,this.state=e.FRAG_LOADING_WAITING_RETRY}else t.logger.error("mediaController: "+a.details+" reaches max retry, redispatch as fatal ..."),a.fatal=!0,this.hls.trigger(r.default.ERROR,a),this.state=e.ERROR}break;case n.ErrorDetails.FRAG_LOOP_LOADING_ERROR:case n.ErrorDetails.LEVEL_LOAD_ERROR:case n.ErrorDetails.LEVEL_LOAD_TIMEOUT:case n.ErrorDetails.KEY_LOAD_ERROR:case n.ErrorDetails.KEY_LOAD_TIMEOUT:t.logger.warn("mediaController: "+a.details+" while loading frag,switch to "+(a.fatal?"ERROR":"IDLE")+" state ..."),this.state=a.fatal?e.ERROR:e.IDLE;break;case n.ErrorDetails.BUFFER_FULL_ERROR:this.config.maxMaxBufferLength/=2,t.logger.warn("reduce max buffer length to "+this.config.maxMaxBufferLength+"s and trigger a nextLevelSwitch to flush old buffer and fix QuotaExceededError"),this.nextLevelSwitch()}}},{key:"_checkBuffer",value:function(){var e=this.media;if(e){var d=e.readyState;if(d){var a,i,o=this.seekAfterBuffered;if(o)e.duration>=o&&(a=o,this.seekAfterBuffered=void 0);else{i=e.currentTime;var g=this.loadedmetadata;!g&&e.buffered.length&&(this.loadedmetadata=!0,i||i===this.startPosition||(a=this.startPosition))}a&&(i=a,t.logger.log("target seek position:"+a));var l=this.bufferInfo(i,0),c=!(e.paused||e.ended||e.seeking||2>d),u=.4,f=i>e.playbackRate*this.lastCurrentTime;if(this.stalled&&f&&(this.stalled=!1),l.len<=u){if(f||!c?u=0:(t.logger.log("playback seems stuck @"+i),this.stalled||(this.hls.trigger(r.default.ERROR,{type:n.ErrorTypes.MEDIA_ERROR,details:n.ErrorDetails.BUFFER_STALLED_ERROR,fatal:!1}),this.stalled=!0)),l.len<=u){var s=l.nextStart,h=s-i;s&&h0&&!e.seeking&&(t.logger.log("adjust currentTime from "+e.currentTime+" to next buffered @ "+s),e.currentTime=s,this.hls.trigger(r.default.ERROR,{type:n.ErrorTypes.MEDIA_ERROR,details:n.ErrorDetails.BUFFER_SEEK_OVER_HOLE,fatal:!1}))}}else a&&e.currentTime!==a&&(t.logger.log("adjust currentTime from "+e.currentTime+" to "+a),e.currentTime=a)}}}},{key:"onBufferFlushed",value:function(){var t,r,n=[];for(r=0;re;e++)r+="["+t.start(e)+","+t.end(e)+"]";return r}},{key:"currentLevel",get:function(){if(this.media){var e=this.getBufferRange(this.media.currentTime);if(e)return e.frag.level}return-1}},{key:"nextBufferRange",get:function(){return this.media?this.followingBufferRange(this.getBufferRange(this.media.currentTime)):null}},{key:"nextLevel",get:function(){var e=this.nextBufferRange;return e?e.frag.level:-1}}]),a}(s.default);o.default=b},{"../demux/demuxer":15,"../errors":19,"../event-handler":20,"../events":21,"../helper/level-helper":22,"../utils/binary-search":32,"../utils/logger":34}],7:[function(t,g,n){"use strict";function r(e){return e&&e.__esModule?e:{default:e}}function f(e,t){if(!(e instanceof t))throw new TypeError("Cannot call a class as a function")}function i(t,e){if(!t)throw new ReferenceError("this hasn't been initialised - super() hasn't been called");return!e||"object"!=typeof e&&"function"!=typeof e?t:e}function s(t,e){if("function"!=typeof e&&null!==e)throw new TypeError("Super expression must either be null or a function, not "+typeof e);t.prototype=Object.create(e&&e.prototype,{constructor:{value:t,enumerable:!1,writable:!0,configurable:!0}}),e&&(Object.setPrototypeOf?Object.setPrototypeOf(t,e):t.__proto__=e)}var c=function(){function e(n,r){for(var t=0;te;e++)c[(a[e]=e<<1^283*(e>>7))^e]=e;for(n=r=0;!h[n];n^=u||1,r=c[r]||1)for(t=r^r<<1^r<<2^r<<3^r<<4,t=t>>8^255&t^99,h[n]=t,g[t]=n,d=a[f=a[u=a[n]]],l=16843009*d^65537*f^257*u^16843008*n,s=257*a[t]^16843008*t,e=0;4>e;e++)i[e][n]=s=s<<24^s>>>8,o[e][t]=l=l<<24^l>>>8;for(e=0;5>e;e++)i[e]=i[e].slice(0),o[e]=o[e].slice(0)}},{key:"decrypt",value:function(R,p,_,b,E,m){var h,v,g,i,e=this._key[1],t=R^e[0],n=b^e[1],a=_^e[2],r=p^e[3],y=e.length/4-2,s=4,o=this._tables[1],f=o[0],d=o[1],u=o[2],l=o[3],c=o[4];for(i=0;y>i;i++)h=f[t>>>24]^d[n>>16&255]^u[a>>8&255]^l[255&r]^e[s],v=f[n>>>24]^d[a>>16&255]^u[r>>8&255]^l[255&t]^e[s+1],g=f[a>>>24]^d[r>>16&255]^u[t>>8&255]^l[255&n]^e[s+2],r=f[r>>>24]^d[t>>16&255]^u[n>>8&255]^l[255&a]^e[s+3],s+=4,t=h,n=v,a=g;for(i=0;4>i;i++)E[(3&-i)+m]=c[t>>>24]<<24^c[n>>16&255]<<16^c[a>>8&255]<<8^c[255&r]^e[s++],h=t,t=n,n=a,a=r,r=h}}]),e}();e.default=n},{}],9:[function(t,l,e){"use strict";function r(e){return e&&e.__esModule?e:{default:e}}function n(e,t){if(!(e instanceof t))throw new TypeError("Cannot call a class as a function")}var a=function(){function e(n,r){for(var t=0;t>8|e>>>24}},{key:"doDecrypt",value:function(n,v,a){var u,h,o,f,l,c,d,i,e,r=new Int32Array(n.buffer,n.byteOffset,n.byteLength>>2),p=new s.default(Array.prototype.slice.call(v)),g=new Uint8Array(n.byteLength),t=new Int32Array(g.buffer);for(u=~~a[0],h=~~a[1],o=~~a[2],f=~~a[3],e=0;ee&&(255!==t[e]||240!==(240&t[e+1]));e++);for(r.audiosamplerate||(a=o.default.getAudioConfig(this.observer,t,e,p),r.config=a.config,r.audiosamplerate=a.samplerate,r.channelCount=a.channelCount,r.codec=a.codec,r.timescale=a.samplerate,r.duration=a.samplerate*y,l.logger.log("parsed codec:"+r.codec+",rate:"+a.samplerate+",nb channel:"+a.channelCount)),c=0,v=9216e4/r.audiosamplerate;u>e+5&&(s=1&t[e+1]?7:9,i=(3&t[e+3])<<11|t[e+4]<<3|(224&t[e+5])>>>5,i-=s,i>0&&u>=e+s+i);)for(f=h+c*v,g={unit:t.subarray(e+s,e+s+i),pts:f,dts:f},r.samples.push(g),r.len+=i,e+=i+s,c++;u-1>e&&(255!==t[e]||240!==(240&t[e+1]));e++);this.remuxer.remux(this._aacTrack,{samples:[]},{samples:[{pts:h,dts:h,unit:d.payload}]},{samples:[]},m)}},{key:"destroy",value:function(){}}],[{key:"probe",value:function(t){var e,r,a=new n.default(t);if(a.hasTimeStamp)for(e=a.length,r=t.length;r-1>e;e++)if(255===t[e]&&240===(240&t[e+1]))return!0;return!1}}]),e}();t.default=s},{"../demux/id3":17,"../utils/logger":34,"./adts":12}],12:[function(e,o,t){"use strict";function n(e,t){if(!(e instanceof t))throw new TypeError("Cannot call a class as a function")}var a=function(){function e(n,r){for(var t=0;t>>6)+1,e=(60&u[l+2])>>>2,e>d.length-1?void h.trigger(Event.ERROR,{type:r.ErrorTypes.MEDIA_ERROR,details:r.ErrorDetails.FRAG_PARSING_ERROR,fatal:!0,reason:"invalid ADTS sampling index:"+e}):(o=(1&u[l+2])<<2,o|=(192&u[l+3])>>>6,i.logger.log("manifest codec:"+a+",ADTS data:type:"+n+",sampleingIndex:"+e+"["+d[e]+"Hz],channelConfig:"+o),-1!==f.indexOf("firefox")?e>=6?(n=5,t=new Array(4),s=e-3):(n=2,t=new Array(2),s=e):-1!==f.indexOf("android")?(n=2,t=new Array(2),s=e):(n=5,t=new Array(4),a&&(-1!==a.indexOf("mp4a.40.29")||-1!==a.indexOf("mp4a.40.5"))||!a&&e>=6?s=e-3:((a&&-1!==a.indexOf("mp4a.40.2")&&(e>=6||1===o)||!a&&1===o)&&(n=2,t=new Array(2)),s=e)),t[0]=n<<3,t[0]|=(14&e)>>1,t[1]|=(1&e)<<7,t[1]|=o<<3,5===n&&(t[1]|=(14&s)>>1,t[2]=(1&s)<<7,t[2]|=8,t[3]=0),{config:t,samplerate:d[e],channelCount:o,codec:"mp4a.40."+n})}}]),e}();t.default=s},{"../errors":19,"../utils/logger":34}],13:[function(e,y,n){"use strict";function t(e){return e&&e.__esModule?e:{default:e}}function d(e,t){if(!(e instanceof t))throw new TypeError("Cannot call a class as a function")}var h=function(){function e(n,r){for(var t=0;t1?r-1:0),e=1;r>e;e++)a[e-1]=arguments[e];t.emit.apply(t,[n,n].concat(a))},t.off=function(a){for(var r=arguments.length,n=Array(r>1?r-1:0),e=1;r>e;e++)n[e-1]=arguments[e];t.removeListener.apply(t,[a].concat(n))},r.addEventListener("message",function(n){var e=n.data;switch(e.cmd){case"init":r.demuxer=new u.default(t,e.typeSupported);break;case"demux":r.demuxer.push(new Uint8Array(e.data),e.audioCodec,e.videoCodec,e.timeOffset,e.cc,e.level,e.sn,e.duration)}}),t.on(e.default.FRAG_PARSING_INIT_SEGMENT,function(t,e){r.postMessage({event:t,tracks:e.tracks,unique:e.unique})}),t.on(e.default.FRAG_PARSING_DATA,function(n,e){var t={event:n,type:e.type,startPTS:e.startPTS,endPTS:e.endPTS,startDTS:e.startDTS,endDTS:e.endDTS,data1:e.data1.buffer,data2:e.data2.buffer,nb:e.nb};r.postMessage(t,[t.data1,t.data2])}),t.on(e.default.FRAG_PARSED,function(e){r.postMessage({event:e})}),t.on(e.default.ERROR,function(e,t){r.postMessage({event:e,data:t})}),t.on(e.default.FRAG_PARSING_METADATA,function(e,t){var n={event:e,samples:t.samples};r.postMessage(n)}),t.on(e.default.FRAG_PARSING_USERDATA,function(e,t){var n={event:e,samples:t.samples};r.postMessage(n)})};n.default=o},{"../demux/demuxer-inline":13,"../events":21,events:1}],15:[function(t,v,n){"use strict";function r(e){return e&&e.__esModule?e:{default:e}}function u(e,t){if(!(e instanceof t))throw new TypeError("Cannot call a class as a function")}var h=function(){function e(n,r){for(var t=0;t0&&null!=e&&null!=e.key&&"AES-128"===e.method){null==this.decrypter&&(this.decrypter=new l.default(this.hls));var d=this;this.decrypter.decrypt(t,e.key,e.iv,function(e){d.pushDecrypted(e,r,n,a,i,s,o,u)})}else this.pushDecrypted(t,r,n,a,i,s,o,u)}},{key:"onWorkerMessage",value:function(n){var t=n.data;switch(t.event){case e.default.FRAG_PARSING_INIT_SEGMENT:var r={};r.tracks=t.tracks,r.unique=t.unique,this.hls.trigger(e.default.FRAG_PARSING_INIT_SEGMENT,r);break;case e.default.FRAG_PARSING_DATA:this.hls.trigger(e.default.FRAG_PARSING_DATA,{data1:new Uint8Array(t.data1),data2:new Uint8Array(t.data2),startPTS:t.startPTS,endPTS:t.endPTS,startDTS:t.startDTS,endDTS:t.endDTS,type:t.type,nb:t.nb});break;case e.default.FRAG_PARSING_METADATA:this.hls.trigger(e.default.FRAG_PARSING_METADATA,{samples:t.samples});break;case e.default.FRAG_PARSING_USERDATA:this.hls.trigger(e.default.FRAG_PARSING_USERDATA,{samples:t.samples});break;default:this.hls.trigger(t.event,t.data)}}}]),r}();n.default=o},{"../crypt/decrypter":10,"../demux/demuxer-inline":13,"../demux/demuxer-worker":14,"../events":21,"../utils/logger":34,webworkify:2}],16:[function(t,s,e){"use strict";function r(e,t){if(!(e instanceof t))throw new TypeError("Cannot call a class as a function")}var n=function(){function e(n,r){for(var t=0;te?(this.word<<=e,this.bitsAvailable-=e):(e-=this.bitsAvailable,t=e>>3,e-=t>>3,this.bytesAvailable-=t,this.loadWord(),this.word<<=e,this.bitsAvailable-=e)}},{key:"readBits",value:function(t){var e=Math.min(this.bitsAvailable,t),r=this.word>>>32-e;return t>32&&a.logger.error("Cannot read more than 32 bits at a time"),this.bitsAvailable-=e,this.bitsAvailable>0?this.word<<=e:this.bytesAvailable>0&&this.loadWord(),e=t-e,e>0?r<>>e))return this.word<<=e,this.bitsAvailable-=e,e;return this.loadWord(),e+this.skipLZ()}},{key:"skipUEG",value:function(){this.skipBits(1+this.skipLZ())}},{key:"skipEG",value:function(){this.skipBits(1+this.skipLZ())}},{key:"readUEG",value:function(){var e=this.skipLZ();return this.readBits(e+1)-1}},{key:"readEG",value:function(){var e=this.readUEG();return 1&e?1+e>>>1:-1*(e>>>1)}},{key:"readBoolean",value:function(){return 1===this.readBits(1)}},{key:"readUByte",value:function(){return this.readBits(8)}},{key:"readUShort",value:function(){return this.readBits(16)}},{key:"readUInt",value:function(){return this.readBits(32)}},{key:"skipScalingList",value:function(a){var t,n,r=8,e=8;for(t=0;a>t;t++)0!==e&&(n=this.readEG(),e=(r+n+256)%256),r=0===e?r:e}},{key:"readSPS",value:function(){var t,v,p,l,a,i,n,o,r,s=0,d=0,f=0,h=0,c=1;if(this.readUByte(),t=this.readUByte(),v=this.readBits(5),this.skipBits(3),p=this.readUByte(),this.skipUEG(),100===t||110===t||122===t||244===t||44===t||83===t||86===t||118===t||128===t){var g=this.readUEG();if(3===g&&this.skipBits(1),this.skipUEG(),this.skipUEG(),this.skipBits(1),this.readBoolean())for(o=3!==g?8:12,r=0;o>r;r++)this.readBoolean()&&(6>r?this.skipScalingList(16):this.skipScalingList(64))}this.skipUEG();var u=this.readUEG();if(0===u)this.readUEG();else if(1===u)for(this.skipBits(1),this.skipEG(),this.skipEG(),l=this.readUEG(),r=0;l>r;r++)this.skipEG();if(this.skipUEG(),this.skipBits(1),a=this.readUEG(),i=this.readUEG(),n=this.readBits(1),0===n&&this.skipBits(1),this.skipBits(1),this.readBoolean()&&(s=this.readUEG(),d=this.readUEG(),f=this.readUEG(),h=this.readUEG()),this.readBoolean()&&this.readBoolean()){var e=void 0,y=this.readUByte();switch(y){case 1:e=[1,1];break;case 2:e=[12,11];break;case 3:e=[10,11];break;case 4:e=[16,11];break;case 5:e=[40,33];break;case 6:e=[24,11];break;case 7:e=[20,11];break;case 8:e=[32,11];break;case 9:e=[80,33];break;case 10:e=[18,11];break;case 11:e=[15,11];break;case 12:e=[64,33];break;case 13:e=[160,99];break;case 14:e=[4,3];break;case 15:e=[3,2];break;case 16:e=[2,1];break;case 255:e=[this.readUByte()<<8|this.readUByte(),this.readUByte()<<8|this.readUByte()]}e&&(c=e[0]/e[1])}return{width:Math.ceil((16*(a+1)-2*s-2*d)*c),height:(2-n)*(i+1)*16-(n?2:4)*(f+h)}}},{key:"readSliceType",value:function(){return this.readUByte(),this.readUEG(),this.readUEG()}}]),e}();e.default=i},{"../utils/logger":34}],17:[function(r,s,t){"use strict";function n(e,t){if(!(e instanceof t))throw new TypeError("Cannot call a class as a function")}var a=function(){function e(n,r){for(var t=0;tr);return t}},{key:"_parseID3Frames",value:function(r,t,i){for(var a,s,o,l,n;i>=t+8;)switch(a=this.readUTF(r,t,4),t+=4,s=r[t++]<<24+r[t++]<<16+r[t++]<<8+r[t++],l=r[t++]<<8+r[t++],o=t,a){case"PRIV":if("com.apple.streaming.transportStreamTimestamp"===this.readUTF(r,t,44)){t+=44,t+=4;var u=1&r[t++];this._hasTimeStamp=!0,n=((r[t++]<<23)+(r[t++]<<15)+(r[t++]<<7)+r[t++])/45,u&&(n+=47721858.84),n=Math.round(n),e.logger.trace("ID3 timestamp found: "+n),this._timeStamp=n}}}},{key:"hasTimeStamp",get:function(){return this._hasTimeStamp}},{key:"timeStamp",get:function(){return this._timeStamp}},{key:"length",get:function(){return this._length}},{key:"payload",get:function(){return this._payload}}]),t}();t.default=i},{"../utils/logger":34}],18:[function(t,g,a){"use strict";function n(e){return e&&e.__esModule?e:{default:e}}function u(e,t){if(!(e instanceof t))throw new TypeError("Cannot call a class as a function")}var f=function(){function e(n,r){for(var t=0;tt;t+=188)if(71===n[t]){if(d=!!(64&n[t+1]),u=((31&n[t+1])<<8)+n[t+2],y=(48&n[t+3])>>4,y>1){if(a=t+5+n[t+4],a===t+188)continue}else a=t+4;if(v)if(u===h){if(d){if(s&&(this._parseAVCPES(this._parsePES(s)),b&&this._avcTrack.codec&&(-1===f||this._aacTrack.codec)))return void this.remux(n);s={data:[],size:0}}s&&(s.data.push(n.subarray(a,t+188)),s.size+=t+188-a)}else if(u===f){if(d){if(o&&(this._parseAACPES(this._parsePES(o)),b&&this._aacTrack.codec&&(-1===h||this._avcTrack.codec)))return void this.remux(n);o={data:[],size:0}}o&&(o.data.push(n.subarray(a,t+188)),o.size+=t+188-a)}else u===g&&(d&&(l&&this._parseID3PES(this._parsePES(l)),l={data:[],size:0}),l&&(l.data.push(n.subarray(a,t+188)),l.size+=t+188-a));else d&&(a+=n[a]+1),0===u?this._parsePAT(n,a):u===this._pmtId&&(this._parsePMT(n,a),v=this.pmtParsed=!0,h=this._avcTrack.id,f=this._aacTrack.id,g=this._id3Track.id)}else this.observer.trigger(i.default.ERROR,{type:r.ErrorTypes.MEDIA_ERROR,details:r.ErrorDetails.FRAG_PARSING_ERROR,fatal:!1,reason:"TS packet did not start with 0x47"});s&&this._parseAVCPES(this._parsePES(s)),o&&this._parseAACPES(this._parsePES(o)),l&&this._parseID3PES(this._parsePES(l)),this.remux(null)}},{key:"remux",value:function(e){this.remuxer.remux(this._aacTrack,this._avcTrack,this._id3Track,this._txtTrack,this.timeOffset,this.contiguous,e)}},{key:"destroy",value:function(){this.switchLevel(),this._initPTS=this._initDTS=void 0,this._duration=0}},{key:"_parsePAT",value:function(e,t){this._pmtId=(31&e[t+10])<<8|e[t+11]}},{key:"_parsePMT",value:function(r,t){var a,i,s,n;for(a=(15&r[t+1])<<8|r[t+2],i=t+3+a-4,s=(15&r[t+10])<<8|r[t+11],t+=12+s;i>t;){switch(n=(31&r[t+1])<<8|r[t+2],r[t]){case 15:this._aacTrack.id=n;break;case 21:this._id3Track.id=n;break;case 27:this._avcTrack.id=n;break;default:e.logger.log("unkown stream type:"+r[t])}t+=((15&r[t+3])<<8|r[t+4])+5}}},{key:"_parsePES",value:function(o){var e,i,h,d,u,l,n,r,t,f=0,s=o.data;if(e=s[0],h=(e[0]<<16)+(e[1]<<8)+e[2],1===h){for(d=(e[4]<<8)+e[5],i=e[7],192&i&&(n=536870912*(14&e[9])+4194304*(255&e[10])+16384*(254&e[11])+128*(255&e[12])+(254&e[13])/2,n>4294967295&&(n-=8589934592),64&i?(r=536870912*(14&e[14])+4194304*(255&e[15])+16384*(254&e[16])+128*(255&e[17])+(254&e[18])/2,r>4294967295&&(r-=8589934592)):r=n),u=e[8],t=u+9,o.size-=t,l=new Uint8Array(o.size);s.length;){e=s.shift();var a=e.byteLength;if(t){if(t>a){t-=a;continue}e=e.subarray(t),a-=t,t=0}l.set(e,f),f+=a}return{data:l,pts:n,dts:r,len:d}}return null}},{key:"_parseAVCPES",value:function(n){var t,y,i,l,f=this,r=this._avcTrack,u=r.samples,m=this._parseAVCNALu(n.data),d=[],o=!1,c=!1,g=0;if(0===m.length&&u.length>0){var v=u[u.length-1],h=v.units.units[v.units.units.length-1],p=new Uint8Array(h.data.byteLength+n.data.byteLength);p.set(h.data,0),p.set(n.data,h.data.byteLength),h.data=p,v.units.length+=n.data.byteLength,r.len+=n.data.byteLength}n.data=null;var a="";m.forEach(function(e){switch(e.type){case 1:i=!0,o&&(a+="NDR ");break;case 5:i=!0,o&&(a+="IDR "),c=!0;break;case 6:i=!0,o&&(a+="SEI "),t=new s.default(e.data),t.readUByte();var E=t.readUByte();if(4===E){var p=0;do p=t.readUByte();while(255===p);var R=t.readUByte();if(181===R){var _=t.readUShort();if(49===_){var A=t.readUInt();if(1195456820===A){var L=t.readUByte();if(3===L){var v=t.readUByte(),b=t.readUByte(),S=31&v,h=[v,b];for(l=0;S>l;l++)h.push(t.readUByte()),h.push(t.readUByte()),h.push(t.readUByte());f._txtTrack.samples.push({type:3,pts:n.pts,bytes:h})}}}}}break;case 7:if(i=!0,o&&(a+="SPS "),!r.sps){t=new s.default(e.data);var y=t.readSPS();r.width=y.width,r.height=y.height,r.sps=[e.data],r.timescale=f.remuxer.timescale,r.duration=f.remuxer.timescale*f._duration;var k=e.data.subarray(1,4),m="avc1.";for(l=0;3>l;l++){var u=k[l].toString(16);u.length<2&&(u="0"+u),m+=u}r.codec=m}break;case 8:i=!0,o&&(a+="PPS "),r.pps||(r.pps=[e.data]);break;case 9:i=!1,o&&(a+="AUD ");break;default:i=!1,a+="unknown NAL "+e.type+" "}i&&(d.push(e),g+=e.data.byteLength)}),(o||a.length)&&e.logger.log(a),d.length&&(c===!0||r.sps)&&(y={units:{units:d,length:g},pts:n.pts,dts:n.dts,key:c},u.push(y),r.len+=g,r.nbNalu+=d.length)}},{key:"_parseAVCNALu",value:function(r){for(var i,n,s,p,a,l,t=0,h=r.byteLength,e=0,d=[];h>t;)switch(i=r[t++],e){case 0:0===i&&(e=1);break;case 1:e=0===i?2:0;break;case 2:case 3:if(0===i)e=3;else if(1===i&&h>t){if(p=31&r[t],a)s={data:r.subarray(a,t-e-1),type:l},d.push(s);else if(n=t-e-1){var c=this._avcTrack,f=c.samples;if(f.length){var g=f[f.length-1],v=g.units.units,o=v[v.length-1],u=new Uint8Array(o.data.byteLength+n);u.set(o.data,0),u.set(r.subarray(0,n),o.data.byteLength),o.data=u,g.units.length+=n,c.len+=n}}a=t,l=p,e=0}else e=0}return a&&(s={data:r.subarray(a,h),type:l},d.push(s)),d}},{key:"_parseAACPES",value:function(R){var s,l,p,E,t,d,h,o,_,a=this._aacTrack,n=R.data,g=R.pts,L=0,k=this._duration,A=this.audioCodec,u=this.aacOverFlow,b=this.lastAacPTS;if(u){var m=new Uint8Array(u.byteLength+n.byteLength);m.set(u,0),m.set(n,u.byteLength),n=m}for(t=L,o=n.length;o-1>t&&(255!==n[t]||240!==(240&n[t+1]));t++);if(t){var y,f;if(o-1>t?(y="AAC PES did not start with ADTS header,offset:"+t,f=!1):(y="no ADTS header found in AAC PES",f=!0),this.observer.trigger(i.default.ERROR,{type:r.ErrorTypes.MEDIA_ERROR,details:r.ErrorDetails.FRAG_PARSING_ERROR,fatal:f,reason:y}),f)return}if(a.audiosamplerate||(s=c.default.getAudioConfig(this.observer,n,t,A),a.config=s.config,a.audiosamplerate=s.samplerate,a.channelCount=s.channelCount,a.codec=s.codec,a.timescale=s.samplerate,a.duration=s.samplerate*k,e.logger.log("parsed codec:"+a.codec+",rate:"+s.samplerate+",nb channel:"+s.channelCount)),E=0,p=9216e4/a.audiosamplerate,u&&b){var v=b+p;Math.abs(v-g)>1&&(e.logger.log("AAC: align PTS for overlapping frames by "+Math.round((v-g)/90)),g=v)}for(;o>t+5&&(d=1&n[t+1]?7:9,l=(3&n[t+3])<<11|n[t+4]<<3|(224&n[t+5])>>>5,l-=d,l>0&&o>=t+d+l);)for(h=g+E*p,_={unit:n.subarray(t+d,t+d+l),pts:h,dts:h},a.samples.push(_),a.len+=l,t+=l+d,E++;o-1>t&&(255!==n[t]||240!==(240&n[t+1]));t++);u=o>t?n.subarray(t,o):null,this.aacOverFlow=u,this.lastAacPTS=h}},{key:"_parseID3PES",value:function(e){this._id3Track.samples.push(e)}}],[{key:"probe",value:function(e){return e.length>=564&&71===e[0]&&71===e[188]&&71===e[376]?!0:!1}}]),t}();a.default=o},{"../errors":19,"../events":21,"../utils/logger":34,"./adts":12,"./exp-golomb":16}],19:[function(t,r,e){"use strict";Object.defineProperty(e,"__esModule",{value:!0});e.ErrorTypes={NETWORK_ERROR:"networkError",MEDIA_ERROR:"mediaError",OTHER_ERROR:"otherError"},e.ErrorDetails={MANIFEST_LOAD_ERROR:"manifestLoadError",MANIFEST_LOAD_TIMEOUT:"manifestLoadTimeOut",MANIFEST_PARSING_ERROR:"manifestParsingError",MANIFEST_INCOMPATIBLE_CODECS_ERROR:"manifestIncompatibleCodecsError",LEVEL_LOAD_ERROR:"levelLoadError",LEVEL_LOAD_TIMEOUT:"levelLoadTimeOut",LEVEL_SWITCH_ERROR:"levelSwitchError",FRAG_LOAD_ERROR:"fragLoadError",FRAG_LOOP_LOADING_ERROR:"fragLoopLoadingError",FRAG_LOAD_TIMEOUT:"fragLoadTimeOut",FRAG_DECRYPT_ERROR:"fragDecryptError",FRAG_PARSING_ERROR:"fragParsingError",KEY_LOAD_ERROR:"keyLoadError",KEY_LOAD_TIMEOUT:"keyLoadTimeOut",BUFFER_APPEND_ERROR:"bufferAppendError",BUFFER_APPENDING_ERROR:"bufferAppendingError",BUFFER_STALLED_ERROR:"bufferStalledError",BUFFER_FULL_ERROR:"bufferFullError",BUFFER_SEEK_OVER_HOLE:"bufferSeekOverHole"}},{}],20:[function(i,s,e){"use strict";function t(e,t){if(!(e instanceof t))throw new TypeError("Cannot call a class as a function")}var r="function"==typeof Symbol&&"symbol"==typeof Symbol.iterator?function(e){return typeof e}:function(e){return e&&"function"==typeof Symbol&&e.constructor===Symbol?"symbol":typeof e},n=function(){function e(n,r){for(var t=0;t1?n-1:0),r=1;n>r;r++)a[r-1]=arguments[r];this.handledEvents=a,this.useGenericHandler=!0,this.registerListeners()}return n(e,[{key:"destroy",value:function(){this.unregisterListeners()}},{key:"isEventHandler",value:function(){return"object"===r(this.handledEvents)&&this.handledEvents.length&&"function"==typeof this.onEvent}},{key:"registerListeners",value:function(){this.isEventHandler()&&this.handledEvents.forEach(function(e){if("hlsEventGeneric"===e)throw new Error("Forbidden event name: "+e);this.hls.on(e,this.onEvent)}.bind(this))}},{key:"unregisterListeners",value:function(){this.isEventHandler()&&this.handledEvents.forEach(function(e){this.hls.off(e,this.onEvent)}.bind(this))}},{key:"onEvent",value:function(e,t){this.onEventGeneric(e,t)}},{key:"onEventGeneric",value:function(e,t){var r=function(t,r){var e="on"+t.replace("hls","");if("function"!=typeof this[e])throw new Error("Event "+t+" has no generic handler in this "+this.constructor.name+" class (tried "+e+")");return this[e].bind(this,r)};r.call(this,e,t).call()}}]),e}();e.default=a},{}],21:[function(t,e,r){"use strict";e.exports={MEDIA_ATTACHING:"hlsMediaAttaching",MEDIA_ATTACHED:"hlsMediaAttached",MEDIA_DETACHING:"hlsMediaDetaching",MEDIA_DETACHED:"hlsMediaDetached",BUFFER_RESET:"hlsBufferReset",BUFFER_CODECS:"hlsBufferCodecs",BUFFER_APPENDING:"hlsBufferAppending",BUFFER_APPENDED:"hlsBufferAppended",BUFFER_EOS:"hlsBufferEos",BUFFER_FLUSHING:"hlsBufferFlushing",BUFFER_FLUSHED:"hlsBufferFlushed",MANIFEST_LOADING:"hlsManifestLoading",MANIFEST_LOADED:"hlsManifestLoaded",MANIFEST_PARSED:"hlsManifestParsed",LEVEL_LOADING:"hlsLevelLoading",LEVEL_LOADED:"hlsLevelLoaded",LEVEL_UPDATED:"hlsLevelUpdated",LEVEL_PTS_UPDATED:"hlsLevelPtsUpdated",LEVEL_SWITCH:"hlsLevelSwitch",FRAG_LOADING:"hlsFragLoading",FRAG_LOAD_PROGRESS:"hlsFragLoadProgress",FRAG_LOAD_EMERGENCY_ABORTED:"hlsFragLoadEmergencyAborted",FRAG_LOADED:"hlsFragLoaded",FRAG_PARSING_INIT_SEGMENT:"hlsFragParsingInitSegment",FRAG_PARSING_USERDATA:"hlsFragParsingUserdata",FRAG_PARSING_METADATA:"hlsFragParsingMetadata",FRAG_PARSING_DATA:"hlsFragParsingData",FRAG_PARSED:"hlsFragParsed",FRAG_BUFFERED:"hlsFragBuffered",FRAG_CHANGED:"hlsFragChanged",FPS_DROP:"hlsFpsDrop",ERROR:"hlsError",DESTROYING:"hlsDestroying",KEY_LOADING:"hlsKeyLoading",KEY_LOADED:"hlsKeyLoaded"}},{}],22:[function(r,s,t){"use strict";function n(e,t){if(!(e instanceof t))throw new TypeError("Cannot call a class as a function")}var a=function(){function e(n,r){for(var t=0;td)return void(n.PTSKnown=!1);for(var r=c;d>=r;r++){var l=h[f+r],a=o[r];u=l.cc-a.cc,isNaN(l.startPTS)||(a.start=a.startPTS=l.startPTS,a.endPTS=l.endPTS,a.duration=l.duration,s=a)}if(u)for(e.logger.log("discontinuity sliding from playlist, take drift into account"),r=0;rn.endSN)return 0;o=l-n.startSN,i=n.fragments,r=i[o],isNaN(r.startPTS)||(a=Math.min(a,r.startPTS),s=Math.max(s,r.endPTS));var u=a-r.start;for(r.start=r.startPTS=a,r.endPTS=s,r.duration=s-a,e=o;e>0;e--)t.updatePTS(i,e,e-1);for(e=o;en?r.start=t.start+t.duration:r.start=t.start-r.duration:a>n?(t.duration=i-t.start,t.duration<0&&e.logger.error("negative duration computed for frag "+t.sn+",level "+t.level+", there should be some duration drift between playlist and fragment!")):(r.duration=t.start-i,r.duration<0&&e.logger.error("negative duration computed for frag "+r.sn+",level "+r.level+", there should be some duration drift between playlist and fragment!"))}}]),t}();t.default=i},{"../utils/logger":34}],23:[function(t,O,a){"use strict";function r(e){return e&&e.__esModule?e:{default:e}}function o(e,t){if(!(e instanceof t))throw new TypeError("Cannot call a class as a function")}var i=function(){function e(n,r){for(var t=0;t1?t-1:0),e=1;t>e;e++)a[e-1]=arguments[e];n.emit.apply(n,[r,r].concat(a))},n.off=function(a){for(var t=arguments.length,r=Array(t>1?t-1:0),e=1;t>e;e++)r[e-1]=arguments[e];n.removeListener.apply(n,[a].concat(r))},this.on=n.on.bind(n),this.off=n.off.bind(n),this.trigger=n.trigger.bind(n),this.playlistLoader=new d.default(this),this.fragmentLoader=new h.default(this),this.levelController=new b.default(this),this.abrController=new r.abrController(this),this.bufferController=new r.bufferController(this),this.streamController=new r.streamController(this),this.timelineController=new r.timelineController(this),this.keyLoader=new v.default(this)}return i(t,null,[{key:"isSupported",value:function(){return window.MediaSource&&window.MediaSource.isTypeSupported('video/mp4; codecs="avc1.42E01E,mp4a.40.2"')}},{key:"Events",get:function(){return n.default}},{key:"ErrorTypes",get:function(){return s.ErrorTypes}},{key:"ErrorDetails",get:function(){return s.ErrorDetails}},{key:"DefaultConfig",get:function(){return t.defaultConfig||(t.defaultConfig={autoStartLoad:!0,debug:!1,maxBufferLength:30,maxBufferSize:6e7,maxBufferHole:.5,maxSeekHole:2,liveSyncDurationCount:3,liveMaxLatencyDurationCount:1/0,liveSyncDuration:void 0,liveMaxLatencyDuration:void 0,maxMaxBufferLength:600,enableWorker:!0,enableSoftwareAES:!0,manifestLoadingTimeOut:1e4,manifestLoadingMaxRetry:1,manifestLoadingRetryDelay:1e3,levelLoadingTimeOut:1e4,levelLoadingMaxRetry:4,levelLoadingRetryDelay:1e3,fragLoadingTimeOut:2e4,fragLoadingMaxRetry:6,fragLoadingRetryDelay:1e3,fragLoadingLoopThreshold:3,startFragPrefetch:!1,appendErrorMaxRetry:3,loader:L.default,fLoader:void 0,pLoader:void 0,abrController:g.default,bufferController:p.default,streamController:m.default,timelineController:R.default,enableCEA708Captions:!0,enableMP2TPassThrough:!1}),t.defaultConfig},set:function(e){t.defaultConfig=e}}]),i(t,[{key:"destroy",value:function(){e.logger.log("destroy"),this.trigger(n.default.DESTROYING),this.detachMedia(),this.playlistLoader.destroy(),this.fragmentLoader.destroy(),this.levelController.destroy(),this.bufferController.destroy(),this.streamController.destroy(),this.timelineController.destroy(),this.keyLoader.destroy(),this.url=null,this.observer.removeAllListeners()}},{key:"attachMedia",value:function(t){e.logger.log("attachMedia"),this.media=t,this.trigger(n.default.MEDIA_ATTACHING,{media:t})}},{key:"detachMedia",value:function(){e.logger.log("detachMedia"),this.trigger(n.default.MEDIA_DETACHING),this.media=null}},{key:"loadSource",value:function(t){e.logger.log("loadSource:"+t),this.url=t,this.trigger(n.default.MANIFEST_LOADING,{url:t})}},{key:"startLoad",value:function(){e.logger.log("startLoad"),this.streamController.startLoad()}},{key:"swapAudioCodec",value:function(){e.logger.log("swapAudioCodec"),this.streamController.swapAudioCodec()}},{key:"recoverMediaError",value:function(){e.logger.log("recoverMediaError");var t=this.media;this.detachMedia(),this.attachMedia(t)}},{key:"levels",get:function(){return this.levelController.levels}},{key:"currentLevel",get:function(){return this.streamController.currentLevel},set:function(t){e.logger.log("set currentLevel:"+t),this.loadLevel=t,this.streamController.immediateLevelSwitch()}},{key:"nextLevel",get:function(){return this.streamController.nextLevel},set:function(t){e.logger.log("set nextLevel:"+t),this.levelController.manualLevel=t,this.streamController.nextLevelSwitch()}},{key:"loadLevel",get:function(){return this.levelController.level},set:function(t){e.logger.log("set loadLevel:"+t),this.levelController.manualLevel=t}},{key:"nextLoadLevel",get:function(){return this.levelController.nextLoadLevel()},set:function(e){this.levelController.level=e}},{key:"firstLevel",get:function(){return this.levelController.firstLevel},set:function(t){e.logger.log("set firstLevel:"+t),this.levelController.firstLevel=t}},{key:"startLevel",get:function(){return this.levelController.startLevel},set:function(t){e.logger.log("set startLevel:"+t),this.levelController.startLevel=t}},{key:"autoLevelCapping",get:function(){return this.abrController.autoLevelCapping},set:function(t){e.logger.log("set autoLevelCapping:"+t),this.abrController.autoLevelCapping=t}},{key:"autoLevelEnabled",get:function(){return-1===this.levelController.manualLevel}},{key:"manualLevel",get:function(){return this.levelController.manualLevel}}]),t}();a.default=l},{"./controller/abr-controller":3,"./controller/buffer-controller":4,"./controller/level-controller":5,"./controller/stream-controller":6,"./controller/timeline-controller":7,"./errors":19,"./events":21,"./loader/fragment-loader":25,"./loader/key-loader":26,"./loader/playlist-loader":27,"./utils/logger":34,"./utils/xhr-loader":36,events:1}],24:[function(e,t,r){"use strict";t.exports=e("./hls.js").default},{"./hls.js":23}],25:[function(r,c,n){"use strict";function a(e){return e&&e.__esModule?e:{default:e}}function u(e,t){if(!(e instanceof t))throw new TypeError("Cannot call a class as a function")}function f(t,e){if(!t)throw new ReferenceError("this hasn't been initialised - super() hasn't been called");return!e||"object"!=typeof e&&"function"!=typeof e?t:e}function s(t,e){if("function"!=typeof e&&null!==e)throw new TypeError("Super expression must either be null or a function, not "+typeof e);t.prototype=Object.create(e&&e.prototype,{constructor:{value:t,enumerable:!1,writable:!0,configurable:!0}}),e&&(Object.setPrototypeOf?Object.setPrototypeOf(t,e):t.__proto__=e)}var h=function(){function e(n,r){for(var t=0;t2?(e=t.shift()+".",e+=parseInt(t.shift()).toString(16),e+=("000"+parseInt(t.shift()).toString(16)).substr(-4)):e=r,e}},{key:"cloneObj",value:function(e){return JSON.parse(JSON.stringify(e))}},{key:"parseLevelPlaylist",value:function(k,l,A){var e,b,s,i,v=0,o=0,n={url:l,fragments:[],live:!0,startSN:0},r={method:null,key:null,iv:null,uri:null},E=0,f=null,t=null;for(b=/(?:#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;null!==(e=b.exec(k));)switch(e.shift(),e=e.filter(function(e){return void 0!==e}),e[0]){case"MEDIA-SEQUENCE":v=n.startSN=parseInt(e[1]);break;case"TARGETDURATION":n.targetduration=parseFloat(e[1]);break;case"ENDLIST":n.live=!1;break;case"DIS":E++;break;case"BYTERANGE":var c=e[1].split("@");i=1===c.length?s:parseInt(c[1]),s=parseInt(c[0])+i,t&&!t.url&&(t.byteRangeStartOffset=i,t.byteRangeEndOffset=s,t.url=this.resolve(e[2],l));break;case"INF":var g=parseFloat(e[1]);if(!isNaN(g)){var u,m=v++;if(r.method&&r.uri&&!r.iv){u=this.cloneObj(r);for(var y=new Uint8Array(16),d=12;16>d;d++)y[d]=m>>8*(15-d)&255;u.iv=y}else u=r;var L=e[2]?this.resolve(e[2],l):null;t={url:L,duration:g,start:o,sn:m,level:A,cc:E,byteRangeStartOffset:i,byteRangeEndOffset:s,decryptdata:u,programDateTime:f},n.fragments.push(t),o+=g,i=null,f=null}break;case"KEY":var R=e[1],p=new a.default(R),h=p.enumeratedString("METHOD"),_=p.URI,S=p.hexadecimalInteger("IV");h&&(r={method:null,key:null,iv:null,uri:null},_&&"AES-128"===h&&(r.method=h,r.uri=this.resolve(_,l),r.key=null,r.iv=S));break;case"PROGRAM-DATE-TIME":f=new Date(Date.parse(e[1]))}return t&&!t.url&&(n.fragments.pop(),o-=t.duration),n.totalduration=o,n.endSN=v-1,n}},{key:"loadsuccess",value:function(u,n){var s,o=u.currentTarget,i=o.responseText,r=o.responseURL,l=this.id,d=this.id2,a=this.hls;if(void 0===r&&(r=this.url),n.tload=performance.now(),n.mtime=new Date(o.getResponseHeader("Last-Modified")),0===i.indexOf("#EXTM3U"))if(i.indexOf("#EXTINF:")>0)if(null===this.id)a.trigger(t.default.MANIFEST_LOADED,{levels:[{url:r}],url:r,stats:n});else{var f=this.parseLevelPlaylist(i,r,l);n.tparsed=performance.now(),a.trigger(t.default.LEVEL_LOADED,{details:f,level:l,id:d,stats:n})}else s=this.parseMasterPlaylist(i,r),s.length?a.trigger(t.default.MANIFEST_LOADED,{levels:s,url:r,stats:n}):a.trigger(t.default.ERROR,{type:e.ErrorTypes.NETWORK_ERROR,details:e.ErrorDetails.MANIFEST_PARSING_ERROR,fatal:!0,url:r,reason:"no level found in manifest"});else a.trigger(t.default.ERROR,{type:e.ErrorTypes.NETWORK_ERROR,details:e.ErrorDetails.MANIFEST_PARSING_ERROR,fatal:!0,url:r,reason:"no EXTM3U delimiter"})}},{key:"loaderror",value:function(a){var r,n;null===this.id?(r=e.ErrorDetails.MANIFEST_LOAD_ERROR,n=!0):(r=e.ErrorDetails.LEVEL_LOAD_ERROR,n=!1),this.loader&&this.loader.abort(),this.hls.trigger(t.default.ERROR,{type:e.ErrorTypes.NETWORK_ERROR,details:r,fatal:n,url:this.url,loader:this.loader,response:a.currentTarget,level:this.id,id:this.id2})}},{key:"loadtimeout",value:function(){var r,n;null===this.id?(r=e.ErrorDetails.MANIFEST_LOAD_TIMEOUT,n=!0):(r=e.ErrorDetails.LEVEL_LOAD_TIMEOUT,n=!1),this.loader&&this.loader.abort(),this.hls.trigger(t.default.ERROR,{type:e.ErrorTypes.NETWORK_ERROR,details:r,fatal:n,url:this.url,loader:this.loader,level:this.id,id:this.id2})}}]),r}(i.default);s.default=u},{"../errors":19,"../event-handler":20,"../events":21,"../utils/attr-list":31,"../utils/url":35}],28:[function(a,i,e){"use strict";function t(e,t){if(!(e instanceof t))throw new TypeError("Cannot call a class as a function")}var r=function(){function e(n,r){for(var t=0;t>24&255,t[1]=e>>16&255,t[2]=e>>8&255,t[3]=255&e,t.set(a,4),r=0,e=8;i>r;r++)t.set(n[r],e),e+=n[r].byteLength;return t}},{key:"hdlr",value:function(t){return e.box(e.types.hdlr,e.HDLR_TYPES[t])}},{key:"mdat",value:function(t){return e.box(e.types.mdat,t)}},{key:"mdhd",value:function(t,r){return e.box(e.types.mdhd,new Uint8Array([0,0,0,0,0,0,0,2,0,0,0,3,t>>24&255,t>>16&255,t>>8&255,255&t,r>>24,r>>16&255,r>>8&255,255&r,85,196,0,0]))}},{key:"mdia",value:function(t){return e.box(e.types.mdia,e.mdhd(t.timescale,t.duration),e.hdlr(t.type),e.minf(t))}},{key:"mfhd",value:function(t){return e.box(e.types.mfhd,new Uint8Array([0,0,0,0,t>>24,t>>16&255,t>>8&255,255&t]))}},{key:"minf",value:function(t){return"audio"===t.type?e.box(e.types.minf,e.box(e.types.smhd,e.SMHD),e.DINF,e.stbl(t)):e.box(e.types.minf,e.box(e.types.vmhd,e.VMHD),e.DINF,e.stbl(t))}},{key:"moof",value:function(t,r,n){return e.box(e.types.moof,e.mfhd(t),e.traf(n,r))}},{key:"moov",value:function(t){for(var r=t.length,n=[];r--;)n[r]=e.trak(t[r]);return e.box.apply(null,[e.types.moov,e.mvhd(t[0].timescale,t[0].duration)].concat(n).concat(e.mvex(t)))}},{key:"mvex",value:function(r){for(var t=r.length,n=[];t--;)n[t]=e.trex(r[t]);return e.box.apply(null,[e.types.mvex].concat(n))}},{key:"mvhd",value:function(t,r){var n=new Uint8Array([0,0,0,0,0,0,0,1,0,0,0,2,t>>24&255,t>>16&255,t>>8&255,255&t,r>>24&255,r>>16&255,r>>8&255,255&r,0,1,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,64,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,255,255,255,255]);return e.box(e.types.mvhd,n)}},{key:"sdtp",value:function(i){var r,t,n=i.samples||[],a=new Uint8Array(4+n.length);for(t=0;t>>8&255),n.push(255&i),n=n.concat(Array.prototype.slice.call(a));for(r=0;r>>8&255),s.push(255&i),s=s.concat(Array.prototype.slice.call(a));var u=e.box(e.types.avcC,new Uint8Array([1,n[3],n[4],n[5],255,224|t.sps.length].concat(n).concat([t.pps.length]).concat(s))),o=t.width,l=t.height;return e.box(e.types.avc1,new Uint8Array([0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,o>>8&255,255&o,l>>8&255,255&l,0,72,0,0,0,72,0,0,0,0,0,0,0,1,18,100,97,105,108,121,109,111,116,105,111,110,47,104,108,115,46,106,115,0,0,0,0,0,0,0,0,0,0,0,0,0,0,24,17,17]),u,e.box(e.types.btrt,new Uint8Array([0,28,156,128,0,45,198,192,0,45,198,192])))}},{key:"esds",value:function(t){var e=t.config.length;return new Uint8Array([0,0,0,0,3,23+e,0,1,0,4,15+e,64,21,0,0,0,0,0,0,0,0,0,0,0,5].concat([e]).concat(t.config).concat([6,1,2]))}},{key:"mp4a",value:function(t){var r=t.audiosamplerate;return e.box(e.types.mp4a,new 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t.duration=t.duration||4294967295,e.box(e.types.trak,e.tkhd(t),e.mdia(t))}},{key:"trex",value:function(r){var t=r.id;return e.box(e.types.trex,new Uint8Array([0,0,0,0,t>>24,t>>16&255,t>>8&255,255&t,0,0,0,1,0,0,0,0,0,0,0,0,0,1,0,1]))}},{key:"trun",value:function(h,o){var n,a,i,s,t,l,d=h.samples||[],r=d.length,f=12+16*r,u=new Uint8Array(f);for(o+=8+f,u.set([0,0,15,1,r>>>24&255,r>>>16&255,r>>>8&255,255&r,o>>>24&255,o>>>16&255,o>>>8&255,255&o],0),n=0;r>n;n++)a=d[n],i=a.duration,s=a.size,t=a.flags,l=a.cts,u.set([i>>>24&255,i>>>16&255,i>>>8&255,255&i,s>>>24&255,s>>>16&255,s>>>8&255,255&s,t.isLeading<<2|t.dependsOn,t.isDependedOn<<6|t.hasRedundancy<<4|t.paddingValue<<1|t.isNonSync,61440&t.degradPrio,15&t.degradPrio,l>>>24&255,l>>>16&255,l>>>8&255,255&l],12+16*n);return e.box(e.types.trun,u)}},{key:"initSegment",value:function(n){e.types||e.init();var t,r=e.moov(n);return t=new 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0!==l)d=this._PTSNormalize(v,l),a=this._PTSNormalize(_,l),i.duration=(a-l)/h,Math.abs(i.duration-1024)>10&&t.logger.log("invalid AAC sample duration at PTS "+Math.round(v/90)+",should be 1024,found :"+Math.round(i.duration)),i.duration=1024,a=1024*h+l;else{var s,p=this.nextAacPts;if(d=this._PTSNormalize(v,p),a=this._PTSNormalize(_,p),s=Math.round(1e3*(d-p)/u),(T||Math.abs(s)<600)&&s){if(s>0)t.logger.log(s+" ms hole between AAC samples detected,filling it");else if(-12>s){t.logger.log(-s+" ms overlapping between AAC samples detected, drop frame"),n.len-=f.byteLength;continue}d=a=p}if(A=Math.max(0,d),E=Math.max(0,a),!(n.len>0))return;o=new Uint8Array(n.len+8),L=new DataView(o.buffer),L.setUint32(0,o.byteLength),o.set(r.default.types.mdat,4)}o.set(f,R),R+=f.byteLength,i={size:f.byteLength,cts:0,duration:0,flags:{isLeading:0,isDependedOn:0,hasRedundancy:0,degradPrio:0,dependsOn:1}},m.push(i),l=a}var g=0,c=m.length;c>=2&&(g=m[c-2].duration,i.duration=g),c&&(this.nextAacPts=d+h*g,n.len=0,n.samples=m,k=r.default.moof(n.sequenceNumber++,E/h,n),n.samples=[],this.observer.trigger(e.default.FRAG_PARSING_DATA,{data1:k,data2:o,startPTS:A/u,endPTS:this.nextAacPts/u,startDTS:E/u,endDTS:(a+h*g)/u,type:"audio",nb:c}))}},{key:"remuxID3",value:function(r,a){var t,i=r.samples.length;if(i){for(var n=0;i>n;n++)t=r.samples[n],t.pts=(t.pts-this._initPTS)/this.PES_TIMESCALE,t.dts=(t.dts-this._initDTS)/this.PES_TIMESCALE;this.observer.trigger(e.default.FRAG_PARSING_METADATA,{samples:r.samples})}r.samples=[],a=a}},{key:"remuxText",value:function(t,a){t.samples.sort(function(e,t){return e.pts-t.pts});var r,i=t.samples.length;if(i){for(var n=0;i>n;n++)r=t.samples[n],r.pts=(r.pts-this._initPTS)/this.PES_TIMESCALE;this.observer.trigger(e.default.FRAG_PARSING_USERDATA,{samples:t.samples})}t.samples=[],a=a}},{key:"_PTSNormalize",value:function(e,t){var r;if(void 0===t)return 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e=/^(\d+)x(\d+)$/.exec(this[t]);if(null!==e)return{width:parseInt(e[1],10),height:parseInt(e[2],10)}}}],[{key:"parseAttrList",value:function(a){for(var t,i=/\s*(.+?)\s*=((?:\".*?\")|.*?)(?:,|$)/g,r={};null!==(t=i.exec(a));){var e=t[2],n='"';0===e.indexOf(n)&&e.lastIndexOf(n)===e.length-1&&(e=e.slice(1,-1)),r[t[1]]=e}return r}}]),e}();e.default=n},{}],32:[function(r,e,n){"use strict";var t={search:function(a,s){for(var t=0,r=a.length-1,e=null,n=null;r>=t;){e=(t+r)/2|0,n=a[e];var i=s(n);if(i>0)t=e+1;else{if(!(0>i))return n;r=e-1}}return null}};e.exports=t},{}],33:[function(a,i,e){"use strict";function t(e,t){if(!(e instanceof t))throw new TypeError("Cannot call a class as a function")}var r=function(){function e(n,r){for(var t=0;t0;)e.removeCue(e.cues[0])}},{key:"push",value:function(r,n){this.cue||this._createCue();for(var a,t,e,s,o,u=31&n[0],i=2,l=0;u>l;l++)if(a=n[i++],t=127&n[i++],e=127&n[i++],s=0===(4&a)?!1:!0,o=3&a,(0!==t||0!==e)&&s&&0===o){if(32&t||64&t)this.cue.text+=this._fromCharCode(t)+this._fromCharCode(e);else if((17===t||25===t)&&e>=48&&63>=e)switch(e){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"}if((17===t||25===t)&&e>=32&&47>=e)switch(e){case 32:break;case 33:break;case 34:break;case 35:break;case 36:break;case 37:break;case 38:break;case 39:break;case 40:break;case 41:break;case 42:break;case 43:break;case 44:break;case 45:break;case 46:break;case 47:}if((20===t||28===t)&&e>=32&&47>=e)switch(e){case 32:this._clearActiveCues(r);break;case 33:this.cue.text=this.cue.text.substr(0,this.cue.text.length-1);break;case 34:break;case 35:break;case 36:break;case 37:break;case 38:break;case 39:break;case 40:break;case 41:this._clearActiveCues(r);break;case 42:break;case 43:break;case 44:this._clearActiveCues(r);break;case 45:break;case 46:this._text="";break;case 47:this._flipMemory(r)}if((23===t||31===t)&&e>=33&&35>=e)switch(e){case 33:break;case 34:break;case 35:}}}},{key:"_fromCharCode",value:function(e){switch(e){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 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e.IDLE:if(!this.media&&(this.startFragRequested||!s.startFragPrefetch))break;c=this.loadedmetadata?this.media.currentTime:this.nextLoadPosition,l=this.startFragRequested===!1?this.startLevel:u.nextLoadLevel;var g,k=this.bufferInfo(c,s.maxBufferHole),C=k.len,h=k.end,y=this.fragPrevious;if(this.levels[l].hasOwnProperty("bitrate")?(g=Math.max(8*s.maxBufferSize/this.levels[l].bitrate,s.maxBufferLength),g=Math.min(g,s.maxMaxBufferLength)):g=s.maxBufferLength,g>C){if(u.nextLoadLevel=l,this.level=l,i=this.levels[l].details,"undefined"==typeof i||i.live&&this.levelLastLoaded!==l){this.state=e.WAITING_LEVEL;break}var d=i.fragments,v=d.length,m=d[0].start,_=d[v-1].start+d[v-1].duration,a=void 0;if(i.live){var N=void 0!==s.liveMaxLatencyDuration?s.liveMaxLatencyDuration:s.liveMaxLatencyDurationCount*i.targetduration;if(h=i.startSN&&R<=i.endSN&&(a=d[R-i.startSN],t.logger.log("live playlist, switching playlist, load frag with next SN: "+a.sn))}a||(a=d[Math.min(v-1,Math.round(v/2))],t.logger.log("live playlist, switching playlist, unknown, load middle frag : "+a.sn))}}else m>h&&(a=d[0]);if(a||!function(){var n=void 0,o=s.maxFragLookUpTolerance;_>h?(h>_-o&&(o=0),n=p.default.search(d,function(e){return e.start+e.duration-o<=h?1:e.start-o>h?-1:0})):n=d[v-1],n&&(a=n,m=n.start,y&&a.level===y.level&&a.sn===y.sn&&(a.sn1&&(a.expectedLen=Math.round(a.duration*this.levels[l].bitrate/8),a.trequest=performance.now()),void 0!==this.fragLoadIdx?this.fragLoadIdx++:this.fragLoadIdx=0,a.loadCounter){a.loadCounter++;var T=s.fragLoadingLoopThreshold;if(a.loadCounter>T&&Math.abs(this.fragLoadIdx-a.loadIdx)1){var w=performance.now()-o.trequest;if(w>500*o.duration){var P=Math.max(1,1e3*o.loaded/w);o.expectedLenE){var b=void 0,f=void 0;for(f=this.level-1;f>=0&&(b=o.duration*this.levels[f].bitrate/(6.4*P),t.logger.log("fragLoadedDelay/bufferStarvationDelay/fragLevelNextLoadedDelay["+f+"] 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e,t,r=this.bufferRange;if(r)for(e=r.length-1;e>=0;e--)if(t=r[e],n>=t.start&&n<=t.end)return t;return null}},{key:"followingBufferRange",value:function(e){return e?this.getBufferRange(e.end+.5):null}},{key:"isBuffered",value:function(r){for(var n=this.media,t=n.buffered,e=0;e=t.start(e)&&r<=t.end(e))return!0;return!1}},{key:"_checkFragmentChanged",value:function(){var t,e,n=this.media;if(n&&n.seeking===!1&&(e=n.currentTime,e>n.playbackRate*this.lastCurrentTime&&(this.lastCurrentTime=e),this.isBuffered(e)?t=this.getBufferRange(e):this.isBuffered(e+.1)&&(t=this.getBufferRange(e+.1)),t)){var a=t.frag;a!==this.fragPlaying&&(this.fragPlaying=a,this.hls.trigger(r.default.FRAG_CHANGED,{frag:a}))}}},{key:"immediateLevelSwitch",value:function(){t.logger.log("immediateLevelSwitch"),this.immediateSwitch||(this.immediateSwitch=!0,this.previouslyPaused=this.media.paused,this.media.pause());var n=this.fragCurrent;n&&n.loader&&n.loader.abort(),this.fragCurrent=null,this.hls.trigger(r.default.BUFFER_FLUSHING,{startOffset:0,endOffset:Number.POSITIVE_INFINITY}),this.state=e.PAUSED,this.fragLoadIdx+=2*this.config.fragLoadingLoopThreshold,this.tick()}},{key:"immediateLevelSwitchEnd",value:function(){this.immediateSwitch=!1,this.media.currentTime-=1e-4,this.previouslyPaused||this.media.play()}},{key:"nextLevelSwitch",value:function(){var a,n,t;if(n=this.getBufferRange(this.media.currentTime),n&&n.start>1&&(this.hls.trigger(r.default.BUFFER_FLUSHING,{startOffset:0,endOffset:n.start-1}),this.state=e.PAUSED),this.media.paused)a=0;else{var o=this.hls.nextLoadLevel,l=this.levels[o],s=this.fragLastKbps;a=s&&this.fragCurrent?this.fragCurrent.duration*l.bitrate/(1e3*s)+1:0}if(t=this.getBufferRange(this.media.currentTime+a),t&&(t=this.followingBufferRange(t))){this.hls.trigger(r.default.BUFFER_FLUSHING,{startOffset:t.start,endOffset:Number.POSITIVE_INFINITY}),this.state=e.PAUSED;var i=this.fragCurrent;i&&i.loader&&i.loader.abort(),this.fragCurrent=null,this.fragLoadIdx+=2*this.config.fragLoadingLoopThreshold}}},{key:"onMediaAttached",value:function(t){var e=this.media=t.media;this.onvseeking=this.onMediaSeeking.bind(this),this.onvseeked=this.onMediaSeeked.bind(this),this.onvended=this.onMediaEnded.bind(this),e.addEventListener("seeking",this.onvseeking),e.addEventListener("seeked",this.onvseeked),e.addEventListener("ended",this.onvended),this.levels&&this.config.autoStartLoad&&this.startLoad()}},{key:"onMediaDetaching",value:function(){var e=this.media;e&&e.ended&&(t.logger.log("MSE detaching and video ended, reset startPosition"),this.startPosition=this.lastCurrentTime=0);var r=this.levels;r&&r.forEach(function(e){e.details&&e.details.fragments.forEach(function(e){e.loadCounter=void 0})}),e&&(e.removeEventListener("seeking",this.onvseeking),e.removeEventListener("seeked",this.onvseeked),e.removeEventListener("ended",this.onvended),this.onvseeking=this.onvseeked=this.onvended=null),this.media=null,this.loadedmetadata=!1,this.stop()}},{key:"onMediaSeeking",value:function(){if(this.state===e.FRAG_LOADING){if(0===this.bufferInfo(this.media.currentTime,this.config.maxBufferHole).len){t.logger.log("seeking outside of buffer while fragment load in progress, cancel fragment load");var r=this.fragCurrent;r&&(r.loader&&r.loader.abort(),this.fragCurrent=null),this.fragPrevious=null,this.state=e.IDLE}}else this.state===e.ENDED&&(this.state=e.IDLE);this.media&&(this.lastCurrentTime=this.media.currentTime),void 0!==this.fragLoadIdx&&(this.fragLoadIdx+=2*this.config.fragLoadingLoopThreshold),this.tick()}},{key:"onMediaSeeked",value:function(){this.tick()}},{key:"onMediaEnded",value:function(){t.logger.log("media ended"),this.startPosition=this.lastCurrentTime=0}},{key:"onManifestParsed",value:function(r){var e,n=!1,a=!1;r.levels.forEach(function(t){e=t.audioCodec,e&&(-1!==e.indexOf("mp4a.40.2")&&(n=!0),-1!==e.indexOf("mp4a.40.5")&&(a=!0))}),this.audioCodecSwitch=n&&a,this.audioCodecSwitch&&t.logger.log("both AAC/HE-AAC audio found in levels; declaring level codec as HE-AAC"),this.levels=r.levels,this.startLevelLoaded=!1,this.startFragRequested=!1,this.config.autoStartLoad&&this.startLoad()}},{key:"onLevelLoaded",value:function(s){var n=s.details,a=s.level,o=this.levels[a],u=n.totalduration,i=0;if(t.logger.log("level "+a+" loaded ["+n.startSN+","+n.endSN+"],duration:"+u),this.levelLastLoaded=a,n.live){var d=o.details; +d?(l.default.mergeDetails(d,n),i=n.fragments[0].start,n.PTSKnown?t.logger.log("live playlist sliding:"+i.toFixed(3)):t.logger.log("live playlist - outdated PTS, unknown sliding")):(n.PTSKnown=!1,t.logger.log("live playlist - first load, unknown sliding"))}else n.PTSKnown=!1;if(o.details=n,this.hls.trigger(r.default.LEVEL_UPDATED,{details:n,level:a}),this.startFragRequested===!1){if(n.live){var f=void 0!==this.config.liveSyncDuration?this.config.liveSyncDuration:this.config.liveSyncDurationCount*n.targetduration;this.startPosition=Math.max(0,i+u-f)}this.nextLoadPosition=this.startPosition}this.state===e.WAITING_LEVEL&&(this.state=e.IDLE),this.tick()}},{key:"onKeyLoaded",value:function(){this.state===e.KEY_LOADING&&(this.state=e.IDLE,this.tick())}},{key:"onFragLoaded",value:function(a){var n=this.fragCurrent;if(this.state===e.FRAG_LOADING&&n&&a.frag.level===n.level&&a.frag.sn===n.sn)if(this.fragBitrateTest===!0)this.state=e.IDLE,this.fragBitrateTest=!1,a.stats.tparsed=a.stats.tbuffered=performance.now(),this.hls.trigger(r.default.FRAG_BUFFERED,{stats:a.stats,frag:n});else{this.state=e.PARSING,this.stats=a.stats;var s=this.levels[this.level],o=s.details,d=o.totalduration,f=n.start,l=n.level,u=n.sn,i=s.audioCodec||this.config.defaultAudioCodec;this.audioCodecSwap&&(t.logger.log("swapping playlist audio codec"),void 0===i&&(i=this.lastAudioCodec),i&&(i=-1!==i.indexOf("mp4a.40.5")?"mp4a.40.2":"mp4a.40.5")),this.pendingAppending=0,t.logger.log("Demuxing "+u+" of ["+o.startSN+" ,"+o.endSN+"],level "+l),this.demuxer.push(a.payload,i,s.videoCodec,f,n.cc,l,u,d,n.decryptdata)}this.fragLoadError=0}},{key:"onFragParsingInitSegment",value:function(l){if(this.state===e.PARSING){var o,n,a=l.tracks;if(n=a.audio){var i=this.levels[this.level].audioCodec,u=navigator.userAgent.toLowerCase();i&&this.audioCodecSwap&&(t.logger.log("swapping playlist audio codec"),i=-1!==i.indexOf("mp4a.40.5")?"mp4a.40.2":"mp4a.40.5"),this.audioCodecSwitch&&1!==n.metadata.channelCount&&-1===u.indexOf("firefox")&&(i="mp4a.40.5"),-1!==u.indexOf("android")&&(i="mp4a.40.2",t.logger.log("Android: force audio codec to"+i)),n.levelCodec=i}if(n=a.video,n&&(n.levelCodec=this.levels[this.level].videoCodec),l.unique){var s={codec:"",levelCodec:""};for(o in l.tracks)n=a[o],s.container=n.container,s.codec&&(s.codec+=",",s.levelCodec+=","),n.codec&&(s.codec+=n.codec),n.levelCodec&&(s.levelCodec+=n.levelCodec);a={audiovideo:s}}this.hls.trigger(r.default.BUFFER_CODECS,a);for(o in a){n=a[o],t.logger.log("track:"+o+",container:"+n.container+",codecs[level/parsed]=["+n.levelCodec+"/"+n.codec+"]");var d=n.initSegment;d&&(this.pendingAppending++,this.hls.trigger(r.default.BUFFER_APPENDING,{type:o,data:d}))}this.tick()}}},{key:"onFragParsingData",value:function(n){var o=this;if(this.state===e.PARSING){this.tparse2=Date.now();var a=this.levels[this.level],i=this.fragCurrent;t.logger.log("parsed "+n.type+",PTS:["+n.startPTS.toFixed(3)+","+n.endPTS.toFixed(3)+"],DTS:["+n.startDTS.toFixed(3)+"/"+n.endDTS.toFixed(3)+"],nb:"+n.nb);var u=l.default.updateFragPTS(a.details,i.sn,n.startPTS,n.endPTS),s=this.hls;s.trigger(r.default.LEVEL_PTS_UPDATED,{details:a.details,level:this.level,drift:u}),[n.data1,n.data2].forEach(function(e){e&&(o.pendingAppending++,s.trigger(r.default.BUFFER_APPENDING,{type:n.type,data:e}))}),this.nextLoadPosition=n.endPTS,this.bufferRange.push({type:n.type,start:n.startPTS,end:n.endPTS,frag:i}),this.tick()}else t.logger.warn("not in PARSING state but "+this.state+", ignoring FRAG_PARSING_DATA event")}},{key:"onFragParsed",value:function(){this.state===e.PARSING&&(this.stats.tparsed=performance.now(),this.state=e.PARSED,this._checkAppendedParsed())}},{key:"onBufferAppended",value:function(){switch(this.state){case e.PARSING:case e.PARSED:this.pendingAppending--,this._checkAppendedParsed()}}},{key:"_checkAppendedParsed",value:function(){if(this.state===e.PARSED&&0===this.pendingAppending){var a=this.fragCurrent,n=this.stats;a&&(this.fragPrevious=a,n.tbuffered=performance.now(),this.fragLastKbps=Math.round(8*n.length/(n.tbuffered-n.tfirst)),this.hls.trigger(r.default.FRAG_BUFFERED,{stats:n,frag:a}),t.logger.log("media buffered : "+this.timeRangesToString(this.media.buffered)),this.state=e.IDLE),this.tick()}}},{key:"onError",value:function(a){switch(a.details){case n.ErrorDetails.FRAG_LOAD_ERROR:case n.ErrorDetails.FRAG_LOAD_TIMEOUT:if(!a.fatal){var i=this.fragLoadError;if(i?i++:i=1,i<=this.config.fragLoadingMaxRetry){this.fragLoadError=i,a.frag.loadCounter=0;var s=Math.min(Math.pow(2,i-1)*this.config.fragLoadingRetryDelay,64e3);t.logger.warn("mediaController: frag loading failed, retry in "+s+" ms"),this.retryDate=performance.now()+s,this.state=e.FRAG_LOADING_WAITING_RETRY}else t.logger.error("mediaController: "+a.details+" reaches max retry, redispatch as fatal ..."),a.fatal=!0,this.hls.trigger(r.default.ERROR,a),this.state=e.ERROR}break;case n.ErrorDetails.FRAG_LOOP_LOADING_ERROR:case n.ErrorDetails.LEVEL_LOAD_ERROR:case n.ErrorDetails.LEVEL_LOAD_TIMEOUT:case n.ErrorDetails.KEY_LOAD_ERROR:case n.ErrorDetails.KEY_LOAD_TIMEOUT:t.logger.warn("mediaController: "+a.details+" while loading frag,switch to "+(a.fatal?"ERROR":"IDLE")+" state ..."),this.state=a.fatal?e.ERROR:e.IDLE;break;case n.ErrorDetails.BUFFER_FULL_ERROR:this.config.maxMaxBufferLength/=2,t.logger.warn("reduce max buffer length to "+this.config.maxMaxBufferLength+"s and trigger a nextLevelSwitch to flush old buffer and fix QuotaExceededError"),this.nextLevelSwitch()}}},{key:"_checkBuffer",value:function(){var e=this.media;if(e){var d=e.readyState;if(d){var a,i,o=this.seekAfterBuffered;if(o)e.duration>=o&&(a=o,this.seekAfterBuffered=void 0);else{i=e.currentTime;var g=this.loadedmetadata;!g&&e.buffered.length&&(this.loadedmetadata=!0,i||i===this.startPosition||(a=this.startPosition))}a&&(i=a,t.logger.log("target seek position:"+a));var l=this.bufferInfo(i,0),c=!(e.paused||e.ended||e.seeking||2>d),u=.4,f=i>e.playbackRate*this.lastCurrentTime;if(this.stalled&&f&&(this.stalled=!1),l.len<=u){if(f||!c?u=0:(t.logger.log("playback seems stuck @"+i),this.stalled||(this.hls.trigger(r.default.ERROR,{type:n.ErrorTypes.MEDIA_ERROR,details:n.ErrorDetails.BUFFER_STALLED_ERROR,fatal:!1}),this.stalled=!0)),l.len<=u){var s=l.nextStart,h=s-i;s&&h0&&!e.seeking&&(t.logger.log("adjust currentTime from "+e.currentTime+" to next buffered @ "+s),e.currentTime=s,this.hls.trigger(r.default.ERROR,{type:n.ErrorTypes.MEDIA_ERROR,details:n.ErrorDetails.BUFFER_SEEK_OVER_HOLE,fatal:!1}))}}else a&&e.currentTime!==a&&(t.logger.log("adjust currentTime from "+e.currentTime+" to "+a),e.currentTime=a)}}}},{key:"onBufferFlushed",value:function(){var t,r,n=[];for(r=0;re;e++)r+="["+t.start(e)+","+t.end(e)+"]";return r}},{key:"currentLevel",get:function(){if(this.media){var e=this.getBufferRange(this.media.currentTime);if(e)return e.frag.level}return-1}},{key:"nextBufferRange",get:function(){return this.media?this.followingBufferRange(this.getBufferRange(this.media.currentTime)):null}},{key:"nextLevel",get:function(){var e=this.nextBufferRange;return e?e.frag.level:-1}}]),a}(s.default);o.default=b},{"../demux/demuxer":15,"../errors":19,"../event-handler":20,"../events":21,"../helper/level-helper":22,"../utils/binary-search":32,"../utils/logger":34}],7:[function(t,g,n){"use strict";function r(e){return e&&e.__esModule?e:{default:e}}function f(e,t){if(!(e instanceof t))throw new TypeError("Cannot call a class as a function")}function i(t,e){if(!t)throw new ReferenceError("this hasn't been initialised - super() hasn't been called");return!e||"object"!=typeof e&&"function"!=typeof e?t:e}function s(t,e){if("function"!=typeof e&&null!==e)throw new TypeError("Super expression must either be null or a function, not "+typeof e);t.prototype=Object.create(e&&e.prototype,{constructor:{value:t,enumerable:!1,writable:!0,configurable:!0}}),e&&(Object.setPrototypeOf?Object.setPrototypeOf(t,e):t.__proto__=e)}var c=function(){function e(n,r){for(var t=0;te;e++)c[(a[e]=e<<1^283*(e>>7))^e]=e;for(n=r=0;!h[n];n^=u||1,r=c[r]||1)for(t=r^r<<1^r<<2^r<<3^r<<4,t=t>>8^255&t^99,h[n]=t,g[t]=n,d=a[f=a[u=a[n]]],l=16843009*d^65537*f^257*u^16843008*n,s=257*a[t]^16843008*t,e=0;4>e;e++)i[e][n]=s=s<<24^s>>>8,o[e][t]=l=l<<24^l>>>8;for(e=0;5>e;e++)i[e]=i[e].slice(0),o[e]=o[e].slice(0)}},{key:"decrypt",value:function(R,p,_,b,E,m){var h,v,g,i,e=this._key[1],t=R^e[0],n=b^e[1],a=_^e[2],r=p^e[3],y=e.length/4-2,s=4,o=this._tables[1],f=o[0],d=o[1],u=o[2],l=o[3],c=o[4];for(i=0;y>i;i++)h=f[t>>>24]^d[n>>16&255]^u[a>>8&255]^l[255&r]^e[s],v=f[n>>>24]^d[a>>16&255]^u[r>>8&255]^l[255&t]^e[s+1],g=f[a>>>24]^d[r>>16&255]^u[t>>8&255]^l[255&n]^e[s+2],r=f[r>>>24]^d[t>>16&255]^u[n>>8&255]^l[255&a]^e[s+3],s+=4,t=h,n=v,a=g;for(i=0;4>i;i++)E[(3&-i)+m]=c[t>>>24]<<24^c[n>>16&255]<<16^c[a>>8&255]<<8^c[255&r]^e[s++],h=t,t=n,n=a,a=r,r=h}}]),e}();e.default=n},{}],9:[function(t,l,e){"use strict";function r(e){return e&&e.__esModule?e:{default:e}}function n(e,t){if(!(e instanceof t))throw new TypeError("Cannot call a class as a function")}var a=function(){function e(n,r){for(var t=0;t>8|e>>>24}},{key:"doDecrypt",value:function(n,v,a){var u,h,o,f,l,c,d,i,e,r=new Int32Array(n.buffer,n.byteOffset,n.byteLength>>2),p=new s.default(Array.prototype.slice.call(v)),g=new Uint8Array(n.byteLength),t=new Int32Array(g.buffer);for(u=~~a[0],h=~~a[1],o=~~a[2],f=~~a[3],e=0;ee&&(255!==t[e]||240!==(240&t[e+1]));e++);for(r.audiosamplerate||(a=o.default.getAudioConfig(this.observer,t,e,p),r.config=a.config,r.audiosamplerate=a.samplerate,r.channelCount=a.channelCount,r.codec=a.codec,r.timescale=a.samplerate,r.duration=a.samplerate*y,l.logger.log("parsed codec:"+r.codec+",rate:"+a.samplerate+",nb channel:"+a.channelCount)),c=0,v=9216e4/r.audiosamplerate;u>e+5&&(s=1&t[e+1]?7:9,i=(3&t[e+3])<<11|t[e+4]<<3|(224&t[e+5])>>>5,i-=s,i>0&&u>=e+s+i);)for(f=h+c*v,g={unit:t.subarray(e+s,e+s+i),pts:f,dts:f},r.samples.push(g),r.len+=i,e+=i+s,c++;u-1>e&&(255!==t[e]||240!==(240&t[e+1]));e++);this.remuxer.remux(this._aacTrack,{samples:[]},{samples:[{pts:h,dts:h,unit:d.payload}]},{samples:[]},m)}},{key:"destroy",value:function(){}}],[{key:"probe",value:function(t){var e,r,a=new n.default(t);if(a.hasTimeStamp)for(e=a.length,r=t.length;r-1>e;e++)if(255===t[e]&&240===(240&t[e+1]))return!0;return!1}}]),e}();t.default=s},{"../demux/id3":17,"../utils/logger":34,"./adts":12}],12:[function(e,o,t){"use strict";function n(e,t){if(!(e instanceof t))throw new TypeError("Cannot call a class as a function")}var a=function(){function e(n,r){for(var t=0;t>>6)+1,e=(60&u[l+2])>>>2,e>d.length-1?void h.trigger(Event.ERROR,{type:r.ErrorTypes.MEDIA_ERROR,details:r.ErrorDetails.FRAG_PARSING_ERROR,fatal:!0,reason:"invalid ADTS sampling index:"+e}):(o=(1&u[l+2])<<2,o|=(192&u[l+3])>>>6,i.logger.log("manifest codec:"+a+",ADTS data:type:"+n+",sampleingIndex:"+e+"["+d[e]+"Hz],channelConfig:"+o),-1!==f.indexOf("firefox")?e>=6?(n=5,t=new Array(4),s=e-3):(n=2,t=new Array(2),s=e):-1!==f.indexOf("android")?(n=2,t=new Array(2),s=e):(n=5,t=new Array(4),a&&(-1!==a.indexOf("mp4a.40.29")||-1!==a.indexOf("mp4a.40.5"))||!a&&e>=6?s=e-3:((a&&-1!==a.indexOf("mp4a.40.2")&&(e>=6||1===o)||!a&&1===o)&&(n=2,t=new Array(2)),s=e)),t[0]=n<<3,t[0]|=(14&e)>>1,t[1]|=(1&e)<<7,t[1]|=o<<3,5===n&&(t[1]|=(14&s)>>1,t[2]=(1&s)<<7,t[2]|=8,t[3]=0),{config:t,samplerate:d[e],channelCount:o,codec:"mp4a.40."+n})}}]),e}();t.default=s},{"../errors":19,"../utils/logger":34}],13:[function(e,y,n){"use strict";function t(e){return e&&e.__esModule?e:{default:e}}function d(e,t){if(!(e instanceof t))throw new TypeError("Cannot call a class as a function")}var h=function(){function e(n,r){for(var t=0;t1?r-1:0),e=1;r>e;e++)a[e-1]=arguments[e];t.emit.apply(t,[n,n].concat(a))},t.off=function(a){for(var r=arguments.length,n=Array(r>1?r-1:0),e=1;r>e;e++)n[e-1]=arguments[e];t.removeListener.apply(t,[a].concat(n))},r.addEventListener("message",function(n){var e=n.data;switch(e.cmd){case"init":r.demuxer=new u.default(t,e.typeSupported);break;case"demux":r.demuxer.push(new Uint8Array(e.data),e.audioCodec,e.videoCodec,e.timeOffset,e.cc,e.level,e.sn,e.duration)}}),t.on(e.default.FRAG_PARSING_INIT_SEGMENT,function(t,e){r.postMessage({event:t,tracks:e.tracks,unique:e.unique})}),t.on(e.default.FRAG_PARSING_DATA,function(n,e){var t={event:n,type:e.type,startPTS:e.startPTS,endPTS:e.endPTS,startDTS:e.startDTS,endDTS:e.endDTS,data1:e.data1.buffer,data2:e.data2.buffer,nb:e.nb};r.postMessage(t,[t.data1,t.data2])}),t.on(e.default.FRAG_PARSED,function(e){r.postMessage({event:e})}),t.on(e.default.ERROR,function(e,t){r.postMessage({event:e,data:t})}),t.on(e.default.FRAG_PARSING_METADATA,function(e,t){var n={event:e,samples:t.samples};r.postMessage(n)}),t.on(e.default.FRAG_PARSING_USERDATA,function(e,t){var n={event:e,samples:t.samples};r.postMessage(n)})};n.default=o},{"../demux/demuxer-inline":13,"../events":21,events:1}],15:[function(t,v,n){"use strict";function r(e){return e&&e.__esModule?e:{default:e}}function u(e,t){if(!(e instanceof t))throw new TypeError("Cannot call a class as a function")}var h=function(){function e(n,r){for(var t=0;t0&&null!=e&&null!=e.key&&"AES-128"===e.method){null==this.decrypter&&(this.decrypter=new l.default(this.hls));var d=this;this.decrypter.decrypt(t,e.key,e.iv,function(e){d.pushDecrypted(e,r,n,a,i,s,o,u)})}else this.pushDecrypted(t,r,n,a,i,s,o,u)}},{key:"onWorkerMessage",value:function(n){var t=n.data;switch(t.event){case e.default.FRAG_PARSING_INIT_SEGMENT:var r={};r.tracks=t.tracks,r.unique=t.unique,this.hls.trigger(e.default.FRAG_PARSING_INIT_SEGMENT,r);break;case e.default.FRAG_PARSING_DATA:this.hls.trigger(e.default.FRAG_PARSING_DATA,{data1:new Uint8Array(t.data1),data2:new Uint8Array(t.data2),startPTS:t.startPTS,endPTS:t.endPTS,startDTS:t.startDTS,endDTS:t.endDTS,type:t.type,nb:t.nb});break;case e.default.FRAG_PARSING_METADATA:this.hls.trigger(e.default.FRAG_PARSING_METADATA,{samples:t.samples});break;case e.default.FRAG_PARSING_USERDATA:this.hls.trigger(e.default.FRAG_PARSING_USERDATA,{samples:t.samples});break;default:this.hls.trigger(t.event,t.data)}}}]),r}();n.default=o},{"../crypt/decrypter":10,"../demux/demuxer-inline":13,"../demux/demuxer-worker":14,"../events":21,"../utils/logger":34,webworkify:2}],16:[function(t,s,e){"use strict";function r(e,t){if(!(e instanceof t))throw new TypeError("Cannot call a class as a function")}var n=function(){function e(n,r){for(var t=0;te?(this.word<<=e,this.bitsAvailable-=e):(e-=this.bitsAvailable,t=e>>3,e-=t>>3,this.bytesAvailable-=t,this.loadWord(),this.word<<=e,this.bitsAvailable-=e)}},{key:"readBits",value:function(t){var e=Math.min(this.bitsAvailable,t),r=this.word>>>32-e;return t>32&&a.logger.error("Cannot read more than 32 bits at a time"),this.bitsAvailable-=e,this.bitsAvailable>0?this.word<<=e:this.bytesAvailable>0&&this.loadWord(),e=t-e,e>0?r<>>e))return this.word<<=e,this.bitsAvailable-=e,e;return this.loadWord(),e+this.skipLZ()}},{key:"skipUEG",value:function(){this.skipBits(1+this.skipLZ())}},{key:"skipEG",value:function(){this.skipBits(1+this.skipLZ())}},{key:"readUEG",value:function(){var e=this.skipLZ();return this.readBits(e+1)-1}},{key:"readEG",value:function(){var e=this.readUEG();return 1&e?1+e>>>1:-1*(e>>>1)}},{key:"readBoolean",value:function(){return 1===this.readBits(1)}},{key:"readUByte",value:function(){return this.readBits(8)}},{key:"readUShort",value:function(){return this.readBits(16)}},{key:"readUInt",value:function(){return this.readBits(32)}},{key:"skipScalingList",value:function(a){var t,n,r=8,e=8;for(t=0;a>t;t++)0!==e&&(n=this.readEG(),e=(r+n+256)%256),r=0===e?r:e}},{key:"readSPS",value:function(){var t,v,p,l,a,i,n,o,r,s=0,d=0,f=0,h=0,c=1;if(this.readUByte(),t=this.readUByte(),v=this.readBits(5),this.skipBits(3),p=this.readUByte(),this.skipUEG(),100===t||110===t||122===t||244===t||44===t||83===t||86===t||118===t||128===t){var g=this.readUEG();if(3===g&&this.skipBits(1),this.skipUEG(),this.skipUEG(),this.skipBits(1),this.readBoolean())for(o=3!==g?8:12,r=0;o>r;r++)this.readBoolean()&&(6>r?this.skipScalingList(16):this.skipScalingList(64))}this.skipUEG();var u=this.readUEG();if(0===u)this.readUEG();else if(1===u)for(this.skipBits(1),this.skipEG(),this.skipEG(),l=this.readUEG(),r=0;l>r;r++)this.skipEG();if(this.skipUEG(),this.skipBits(1),a=this.readUEG(),i=this.readUEG(),n=this.readBits(1),0===n&&this.skipBits(1),this.skipBits(1),this.readBoolean()&&(s=this.readUEG(),d=this.readUEG(),f=this.readUEG(),h=this.readUEG()),this.readBoolean()&&this.readBoolean()){var e=void 0,y=this.readUByte();switch(y){case 1:e=[1,1];break;case 2:e=[12,11];break;case 3:e=[10,11];break;case 4:e=[16,11];break;case 5:e=[40,33];break;case 6:e=[24,11];break;case 7:e=[20,11];break;case 8:e=[32,11];break;case 9:e=[80,33];break;case 10:e=[18,11];break;case 11:e=[15,11];break;case 12:e=[64,33];break;case 13:e=[160,99];break;case 14:e=[4,3];break;case 15:e=[3,2];break;case 16:e=[2,1];break;case 255:e=[this.readUByte()<<8|this.readUByte(),this.readUByte()<<8|this.readUByte()]}e&&(c=e[0]/e[1])}return{width:Math.ceil((16*(a+1)-2*s-2*d)*c),height:(2-n)*(i+1)*16-(n?2:4)*(f+h)}}},{key:"readSliceType",value:function(){return this.readUByte(),this.readUEG(),this.readUEG()}}]),e}();e.default=i},{"../utils/logger":34}],17:[function(r,s,t){"use strict";function n(e,t){if(!(e instanceof t))throw new TypeError("Cannot call a class as a function")}var a=function(){function e(n,r){for(var t=0;tr);return t}},{key:"_parseID3Frames",value:function(r,t,i){for(var a,s,o,l,n;i>=t+8;)switch(a=this.readUTF(r,t,4),t+=4,s=r[t++]<<24+r[t++]<<16+r[t++]<<8+r[t++],l=r[t++]<<8+r[t++],o=t,a){case"PRIV":if("com.apple.streaming.transportStreamTimestamp"===this.readUTF(r,t,44)){t+=44,t+=4;var u=1&r[t++];this._hasTimeStamp=!0,n=((r[t++]<<23)+(r[t++]<<15)+(r[t++]<<7)+r[t++])/45,u&&(n+=47721858.84),n=Math.round(n),e.logger.trace("ID3 timestamp found: "+n),this._timeStamp=n}}}},{key:"hasTimeStamp",get:function(){return this._hasTimeStamp}},{key:"timeStamp",get:function(){return this._timeStamp}},{key:"length",get:function(){return this._length}},{key:"payload",get:function(){return this._payload}}]),t}();t.default=i},{"../utils/logger":34}],18:[function(t,g,a){"use strict";function n(e){return e&&e.__esModule?e:{default:e}}function u(e,t){if(!(e instanceof t))throw new TypeError("Cannot call a class as a function")}var f=function(){function e(n,r){for(var t=0;tt;t+=188)if(71===n[t]){if(d=!!(64&n[t+1]),u=((31&n[t+1])<<8)+n[t+2],y=(48&n[t+3])>>4,y>1){if(a=t+5+n[t+4],a===t+188)continue}else a=t+4;if(v)if(u===h){if(d){if(s&&(this._parseAVCPES(this._parsePES(s)),b&&this._avcTrack.codec&&(-1===f||this._aacTrack.codec)))return void this.remux(n);s={data:[],size:0}}s&&(s.data.push(n.subarray(a,t+188)),s.size+=t+188-a)}else if(u===f){if(d){if(o&&(this._parseAACPES(this._parsePES(o)),b&&this._aacTrack.codec&&(-1===h||this._avcTrack.codec)))return void this.remux(n);o={data:[],size:0}}o&&(o.data.push(n.subarray(a,t+188)),o.size+=t+188-a)}else u===g&&(d&&(l&&this._parseID3PES(this._parsePES(l)),l={data:[],size:0}),l&&(l.data.push(n.subarray(a,t+188)),l.size+=t+188-a));else d&&(a+=n[a]+1),0===u?this._parsePAT(n,a):u===this._pmtId&&(this._parsePMT(n,a),v=this.pmtParsed=!0,h=this._avcTrack.id,f=this._aacTrack.id,g=this._id3Track.id)}else this.observer.trigger(i.default.ERROR,{type:r.ErrorTypes.MEDIA_ERROR,details:r.ErrorDetails.FRAG_PARSING_ERROR,fatal:!1,reason:"TS packet did not start with 0x47"});s&&this._parseAVCPES(this._parsePES(s)),o&&this._parseAACPES(this._parsePES(o)),l&&this._parseID3PES(this._parsePES(l)),this.remux(null)}},{key:"remux",value:function(e){this.remuxer.remux(this._aacTrack,this._avcTrack,this._id3Track,this._txtTrack,this.timeOffset,this.contiguous,e)}},{key:"destroy",value:function(){this.switchLevel(),this._initPTS=this._initDTS=void 0,this._duration=0}},{key:"_parsePAT",value:function(e,t){this._pmtId=(31&e[t+10])<<8|e[t+11]}},{key:"_parsePMT",value:function(r,t){var a,i,s,n;for(a=(15&r[t+1])<<8|r[t+2],i=t+3+a-4,s=(15&r[t+10])<<8|r[t+11],t+=12+s;i>t;){switch(n=(31&r[t+1])<<8|r[t+2],r[t]){case 15:this._aacTrack.id=n;break;case 21:this._id3Track.id=n;break;case 27:this._avcTrack.id=n;break;default:e.logger.log("unkown stream type:"+r[t])}t+=((15&r[t+3])<<8|r[t+4])+5}}},{key:"_parsePES",value:function(o){var e,i,h,d,u,l,n,r,t,f=0,s=o.data;if(e=s[0],h=(e[0]<<16)+(e[1]<<8)+e[2],1===h){for(d=(e[4]<<8)+e[5],i=e[7],192&i&&(n=536870912*(14&e[9])+4194304*(255&e[10])+16384*(254&e[11])+128*(255&e[12])+(254&e[13])/2,n>4294967295&&(n-=8589934592),64&i?(r=536870912*(14&e[14])+4194304*(255&e[15])+16384*(254&e[16])+128*(255&e[17])+(254&e[18])/2,r>4294967295&&(r-=8589934592)):r=n),u=e[8],t=u+9,o.size-=t,l=new Uint8Array(o.size);s.length;){e=s.shift();var a=e.byteLength;if(t){if(t>a){t-=a;continue}e=e.subarray(t),a-=t,t=0}l.set(e,f),f+=a}return{data:l,pts:n,dts:r,len:d}}return null}},{key:"_parseAVCPES",value:function(n){var t,y,i,l,f=this,r=this._avcTrack,u=r.samples,m=this._parseAVCNALu(n.data),d=[],o=!1,c=!1,g=0;if(0===m.length&&u.length>0){var v=u[u.length-1],h=v.units.units[v.units.units.length-1],p=new Uint8Array(h.data.byteLength+n.data.byteLength);p.set(h.data,0),p.set(n.data,h.data.byteLength),h.data=p,v.units.length+=n.data.byteLength,r.len+=n.data.byteLength}n.data=null;var a="";m.forEach(function(e){switch(e.type){case 1:i=!0,o&&(a+="NDR ");break;case 5:i=!0,o&&(a+="IDR "),c=!0;break;case 6:i=!0,o&&(a+="SEI "),t=new s.default(e.data),t.readUByte();var E=t.readUByte();if(4===E){var p=0;do p=t.readUByte();while(255===p);var R=t.readUByte();if(181===R){var _=t.readUShort();if(49===_){var A=t.readUInt();if(1195456820===A){var k=t.readUByte();if(3===k){var v=t.readUByte(),b=t.readUByte(),S=31&v,h=[v,b];for(l=0;S>l;l++)h.push(t.readUByte()),h.push(t.readUByte()),h.push(t.readUByte());f._txtTrack.samples.push({type:3,pts:n.pts,bytes:h})}}}}}break;case 7:if(i=!0,o&&(a+="SPS "),!r.sps){t=new s.default(e.data);var y=t.readSPS();r.width=y.width,r.height=y.height,r.sps=[e.data],r.timescale=f.remuxer.timescale,r.duration=f.remuxer.timescale*f._duration;var L=e.data.subarray(1,4),m="avc1.";for(l=0;3>l;l++){var u=L[l].toString(16);u.length<2&&(u="0"+u),m+=u}r.codec=m}break;case 8:i=!0,o&&(a+="PPS "),r.pps||(r.pps=[e.data]);break;case 9:i=!1,o&&(a+="AUD ");break;default:i=!1,a+="unknown NAL "+e.type+" "}i&&(d.push(e),g+=e.data.byteLength)}),(o||a.length)&&e.logger.log(a),d.length&&(c===!0||r.sps)&&(y={units:{units:d,length:g},pts:n.pts,dts:n.dts,key:c},u.push(y),r.len+=g,r.nbNalu+=d.length)}},{key:"_parseAVCNALu",value:function(r){for(var i,n,s,p,a,l,t=0,h=r.byteLength,e=0,d=[];h>t;)switch(i=r[t++],e){case 0:0===i&&(e=1);break;case 1:e=0===i?2:0;break;case 2:case 3:if(0===i)e=3;else if(1===i&&h>t){if(p=31&r[t],a)s={data:r.subarray(a,t-e-1),type:l},d.push(s);else if(n=t-e-1){var c=this._avcTrack,f=c.samples;if(f.length){var g=f[f.length-1],v=g.units.units,o=v[v.length-1],u=new Uint8Array(o.data.byteLength+n);u.set(o.data,0),u.set(r.subarray(0,n),o.data.byteLength),o.data=u,g.units.length+=n,c.len+=n}}a=t,l=p,e=0}else e=0}return a&&(s={data:r.subarray(a,h),type:l},d.push(s)),d}},{key:"_parseAACPES",value:function(R){var s,l,p,E,t,d,h,o,_,a=this._aacTrack,n=R.data,g=R.pts,k=0,L=this._duration,A=this.audioCodec,u=this.aacOverFlow,b=this.lastAacPTS;if(u){var m=new Uint8Array(u.byteLength+n.byteLength);m.set(u,0),m.set(n,u.byteLength),n=m}for(t=k,o=n.length;o-1>t&&(255!==n[t]||240!==(240&n[t+1]));t++);if(t){var y,f;if(o-1>t?(y="AAC PES did not start with ADTS header,offset:"+t,f=!1):(y="no ADTS header found in AAC PES",f=!0),this.observer.trigger(i.default.ERROR,{type:r.ErrorTypes.MEDIA_ERROR,details:r.ErrorDetails.FRAG_PARSING_ERROR,fatal:f,reason:y}),f)return}if(a.audiosamplerate||(s=c.default.getAudioConfig(this.observer,n,t,A),a.config=s.config,a.audiosamplerate=s.samplerate,a.channelCount=s.channelCount,a.codec=s.codec,a.timescale=s.samplerate,a.duration=s.samplerate*L,e.logger.log("parsed codec:"+a.codec+",rate:"+s.samplerate+",nb channel:"+s.channelCount)),E=0,p=9216e4/a.audiosamplerate,u&&b){var v=b+p;Math.abs(v-g)>1&&(e.logger.log("AAC: align PTS for overlapping frames by "+Math.round((v-g)/90)),g=v)}for(;o>t+5&&(d=1&n[t+1]?7:9,l=(3&n[t+3])<<11|n[t+4]<<3|(224&n[t+5])>>>5,l-=d,l>0&&o>=t+d+l);)for(h=g+E*p,_={unit:n.subarray(t+d,t+d+l),pts:h,dts:h},a.samples.push(_),a.len+=l,t+=l+d,E++;o-1>t&&(255!==n[t]||240!==(240&n[t+1]));t++);u=o>t?n.subarray(t,o):null,this.aacOverFlow=u,this.lastAacPTS=h}},{key:"_parseID3PES",value:function(e){this._id3Track.samples.push(e)}}],[{key:"probe",value:function(e){return e.length>=564&&71===e[0]&&71===e[188]&&71===e[376]?!0:!1}}]),t}();a.default=o},{"../errors":19,"../events":21,"../utils/logger":34,"./adts":12,"./exp-golomb":16}],19:[function(t,r,e){"use strict";Object.defineProperty(e,"__esModule",{value:!0});e.ErrorTypes={NETWORK_ERROR:"networkError",MEDIA_ERROR:"mediaError",OTHER_ERROR:"otherError"},e.ErrorDetails={MANIFEST_LOAD_ERROR:"manifestLoadError",MANIFEST_LOAD_TIMEOUT:"manifestLoadTimeOut",MANIFEST_PARSING_ERROR:"manifestParsingError",MANIFEST_INCOMPATIBLE_CODECS_ERROR:"manifestIncompatibleCodecsError",LEVEL_LOAD_ERROR:"levelLoadError",LEVEL_LOAD_TIMEOUT:"levelLoadTimeOut",LEVEL_SWITCH_ERROR:"levelSwitchError",FRAG_LOAD_ERROR:"fragLoadError",FRAG_LOOP_LOADING_ERROR:"fragLoopLoadingError",FRAG_LOAD_TIMEOUT:"fragLoadTimeOut",FRAG_DECRYPT_ERROR:"fragDecryptError",FRAG_PARSING_ERROR:"fragParsingError",KEY_LOAD_ERROR:"keyLoadError",KEY_LOAD_TIMEOUT:"keyLoadTimeOut",BUFFER_APPEND_ERROR:"bufferAppendError",BUFFER_APPENDING_ERROR:"bufferAppendingError",BUFFER_STALLED_ERROR:"bufferStalledError",BUFFER_FULL_ERROR:"bufferFullError",BUFFER_SEEK_OVER_HOLE:"bufferSeekOverHole"}},{}],20:[function(i,s,e){"use strict";function t(e,t){if(!(e instanceof t))throw new TypeError("Cannot call a class as a function")}var r="function"==typeof Symbol&&"symbol"==typeof Symbol.iterator?function(e){return typeof e}:function(e){return e&&"function"==typeof Symbol&&e.constructor===Symbol?"symbol":typeof e},n=function(){function e(n,r){for(var t=0;t1?n-1:0),r=1;n>r;r++)a[r-1]=arguments[r];this.handledEvents=a,this.useGenericHandler=!0,this.registerListeners()}return n(e,[{key:"destroy",value:function(){this.unregisterListeners()}},{key:"isEventHandler",value:function(){return"object"===r(this.handledEvents)&&this.handledEvents.length&&"function"==typeof this.onEvent}},{key:"registerListeners",value:function(){this.isEventHandler()&&this.handledEvents.forEach(function(e){if("hlsEventGeneric"===e)throw new Error("Forbidden event name: "+e);this.hls.on(e,this.onEvent)}.bind(this))}},{key:"unregisterListeners",value:function(){this.isEventHandler()&&this.handledEvents.forEach(function(e){this.hls.off(e,this.onEvent)}.bind(this))}},{key:"onEvent",value:function(e,t){this.onEventGeneric(e,t)}},{key:"onEventGeneric",value:function(e,t){var r=function(t,r){var e="on"+t.replace("hls","");if("function"!=typeof this[e])throw new Error("Event "+t+" has no generic handler in this "+this.constructor.name+" class (tried "+e+")");return this[e].bind(this,r)};r.call(this,e,t).call()}}]),e}();e.default=a},{}],21:[function(t,e,r){"use strict";e.exports={MEDIA_ATTACHING:"hlsMediaAttaching",MEDIA_ATTACHED:"hlsMediaAttached",MEDIA_DETACHING:"hlsMediaDetaching",MEDIA_DETACHED:"hlsMediaDetached",BUFFER_RESET:"hlsBufferReset",BUFFER_CODECS:"hlsBufferCodecs",BUFFER_APPENDING:"hlsBufferAppending",BUFFER_APPENDED:"hlsBufferAppended",BUFFER_EOS:"hlsBufferEos",BUFFER_FLUSHING:"hlsBufferFlushing",BUFFER_FLUSHED:"hlsBufferFlushed",MANIFEST_LOADING:"hlsManifestLoading",MANIFEST_LOADED:"hlsManifestLoaded",MANIFEST_PARSED:"hlsManifestParsed",LEVEL_LOADING:"hlsLevelLoading",LEVEL_LOADED:"hlsLevelLoaded",LEVEL_UPDATED:"hlsLevelUpdated",LEVEL_PTS_UPDATED:"hlsLevelPtsUpdated",LEVEL_SWITCH:"hlsLevelSwitch",FRAG_LOADING:"hlsFragLoading",FRAG_LOAD_PROGRESS:"hlsFragLoadProgress",FRAG_LOAD_EMERGENCY_ABORTED:"hlsFragLoadEmergencyAborted",FRAG_LOADED:"hlsFragLoaded",FRAG_PARSING_INIT_SEGMENT:"hlsFragParsingInitSegment",FRAG_PARSING_USERDATA:"hlsFragParsingUserdata",FRAG_PARSING_METADATA:"hlsFragParsingMetadata",FRAG_PARSING_DATA:"hlsFragParsingData",FRAG_PARSED:"hlsFragParsed",FRAG_BUFFERED:"hlsFragBuffered",FRAG_CHANGED:"hlsFragChanged",FPS_DROP:"hlsFpsDrop",ERROR:"hlsError",DESTROYING:"hlsDestroying",KEY_LOADING:"hlsKeyLoading",KEY_LOADED:"hlsKeyLoaded"}},{}],22:[function(r,s,t){"use strict";function n(e,t){if(!(e instanceof t))throw new TypeError("Cannot call a class as a function")}var a=function(){function e(n,r){for(var t=0;td)return void(n.PTSKnown=!1);for(var r=c;d>=r;r++){var l=h[f+r],a=o[r];u=l.cc-a.cc,isNaN(l.startPTS)||(a.start=a.startPTS=l.startPTS,a.endPTS=l.endPTS,a.duration=l.duration,s=a)}if(u)for(e.logger.log("discontinuity sliding from playlist, take drift into account"),r=0;rn.endSN)return 0;o=l-n.startSN,i=n.fragments,r=i[o],isNaN(r.startPTS)||(a=Math.min(a,r.startPTS),s=Math.max(s,r.endPTS));var u=a-r.start;for(r.start=r.startPTS=a,r.endPTS=s,r.duration=s-a,e=o;e>0;e--)t.updatePTS(i,e,e-1);for(e=o;en?r.start=t.start+t.duration:r.start=t.start-r.duration:a>n?(t.duration=i-t.start,t.duration<0&&e.logger.error("negative duration computed for frag "+t.sn+",level "+t.level+", there should be some duration drift between playlist and fragment!")):(r.duration=t.start-i,r.duration<0&&e.logger.error("negative duration computed for frag "+r.sn+",level "+r.level+", there should be some duration drift between playlist and fragment!"))}}]),t}();t.default=i},{"../utils/logger":34}],23:[function(t,O,a){"use strict";function r(e){return e&&e.__esModule?e:{default:e}}function o(e,t){if(!(e instanceof t))throw new TypeError("Cannot call a class as a function")}var i=function(){function e(n,r){for(var t=0;t1?t-1:0),e=1;t>e;e++)a[e-1]=arguments[e];n.emit.apply(n,[r,r].concat(a))},n.off=function(a){for(var t=arguments.length,r=Array(t>1?t-1:0),e=1;t>e;e++)r[e-1]=arguments[e];n.removeListener.apply(n,[a].concat(r))},this.on=n.on.bind(n),this.off=n.off.bind(n),this.trigger=n.trigger.bind(n),this.playlistLoader=new d.default(this),this.fragmentLoader=new h.default(this),this.levelController=new b.default(this),this.abrController=new r.abrController(this),this.bufferController=new r.bufferController(this),this.streamController=new r.streamController(this),this.timelineController=new r.timelineController(this),this.keyLoader=new v.default(this)}return i(t,null,[{key:"isSupported",value:function(){return window.MediaSource&&window.MediaSource.isTypeSupported('video/mp4; codecs="avc1.42E01E,mp4a.40.2"')}},{key:"Events",get:function(){return n.default}},{key:"ErrorTypes",get:function(){return s.ErrorTypes}},{key:"ErrorDetails",get:function(){return s.ErrorDetails}},{key:"DefaultConfig",get:function(){return t.defaultConfig||(t.defaultConfig={autoStartLoad:!0,debug:!1,maxBufferLength:30,maxBufferSize:6e7,maxBufferHole:.5,maxSeekHole:2,maxFragLookUpTolerance:.2,liveSyncDurationCount:3,liveMaxLatencyDurationCount:1/0,liveSyncDuration:void 0,liveMaxLatencyDuration:void 0,maxMaxBufferLength:600,enableWorker:!0,enableSoftwareAES:!0,manifestLoadingTimeOut:1e4,manifestLoadingMaxRetry:1,manifestLoadingRetryDelay:1e3,levelLoadingTimeOut:1e4,levelLoadingMaxRetry:4,levelLoadingRetryDelay:1e3,fragLoadingTimeOut:2e4,fragLoadingMaxRetry:6,fragLoadingRetryDelay:1e3,fragLoadingLoopThreshold:3,startFragPrefetch:!1,appendErrorMaxRetry:3,loader:k.default,fLoader:void 0,pLoader:void 0,abrController:g.default,bufferController:p.default,streamController:m.default,timelineController:R.default,enableCEA708Captions:!0,enableMP2TPassThrough:!1}),t.defaultConfig},set:function(e){t.defaultConfig=e}}]),i(t,[{key:"destroy",value:function(){e.logger.log("destroy"),this.trigger(n.default.DESTROYING),this.detachMedia(),this.playlistLoader.destroy(),this.fragmentLoader.destroy(),this.levelController.destroy(),this.bufferController.destroy(),this.streamController.destroy(),this.timelineController.destroy(),this.keyLoader.destroy(),this.url=null,this.observer.removeAllListeners()}},{key:"attachMedia",value:function(t){e.logger.log("attachMedia"),this.media=t,this.trigger(n.default.MEDIA_ATTACHING,{media:t})}},{key:"detachMedia",value:function(){e.logger.log("detachMedia"),this.trigger(n.default.MEDIA_DETACHING),this.media=null}},{key:"loadSource",value:function(t){e.logger.log("loadSource:"+t),this.url=t,this.trigger(n.default.MANIFEST_LOADING,{url:t})}},{key:"startLoad",value:function(){e.logger.log("startLoad"),this.streamController.startLoad()}},{key:"swapAudioCodec",value:function(){e.logger.log("swapAudioCodec"),this.streamController.swapAudioCodec()}},{key:"recoverMediaError",value:function(){e.logger.log("recoverMediaError");var t=this.media;this.detachMedia(),this.attachMedia(t)}},{key:"levels",get:function(){return this.levelController.levels}},{key:"currentLevel",get:function(){return this.streamController.currentLevel},set:function(t){e.logger.log("set currentLevel:"+t),this.loadLevel=t,this.streamController.immediateLevelSwitch()}},{key:"nextLevel",get:function(){return this.streamController.nextLevel},set:function(t){e.logger.log("set nextLevel:"+t),this.levelController.manualLevel=t,this.streamController.nextLevelSwitch()}},{key:"loadLevel",get:function(){return this.levelController.level},set:function(t){e.logger.log("set loadLevel:"+t),this.levelController.manualLevel=t}},{key:"nextLoadLevel",get:function(){return this.levelController.nextLoadLevel},set:function(e){this.levelController.nextLoadLevel=e}},{key:"firstLevel",get:function(){return this.levelController.firstLevel},set:function(t){e.logger.log("set firstLevel:"+t),this.levelController.firstLevel=t}},{key:"startLevel",get:function(){return this.levelController.startLevel},set:function(t){e.logger.log("set startLevel:"+t),this.levelController.startLevel=t}},{key:"autoLevelCapping",get:function(){return this.abrController.autoLevelCapping},set:function(t){e.logger.log("set autoLevelCapping:"+t),this.abrController.autoLevelCapping=t}},{key:"autoLevelEnabled",get:function(){return-1===this.levelController.manualLevel}},{key:"manualLevel",get:function(){return this.levelController.manualLevel}}]),t}();a.default=l},{"./controller/abr-controller":3,"./controller/buffer-controller":4,"./controller/level-controller":5,"./controller/stream-controller":6,"./controller/timeline-controller":7,"./errors":19,"./events":21,"./loader/fragment-loader":25,"./loader/key-loader":26,"./loader/playlist-loader":27,"./utils/logger":34,"./utils/xhr-loader":36,events:1}],24:[function(e,t,r){"use strict";t.exports=e("./hls.js").default},{"./hls.js":23}],25:[function(r,c,n){"use strict";function a(e){return e&&e.__esModule?e:{default:e}}function u(e,t){if(!(e instanceof t))throw new TypeError("Cannot call a class as a function")}function f(t,e){if(!t)throw new ReferenceError("this hasn't been initialised - super() hasn't been called");return!e||"object"!=typeof e&&"function"!=typeof e?t:e}function s(t,e){if("function"!=typeof e&&null!==e)throw new TypeError("Super expression must either be null or a function, not "+typeof e);t.prototype=Object.create(e&&e.prototype,{constructor:{value:t,enumerable:!1,writable:!0,configurable:!0}}),e&&(Object.setPrototypeOf?Object.setPrototypeOf(t,e):t.__proto__=e)}var h=function(){function e(n,r){for(var t=0;t2?(e=t.shift()+".",e+=parseInt(t.shift()).toString(16),e+=("000"+parseInt(t.shift()).toString(16)).substr(-4)):e=r,e}},{key:"cloneObj",value:function(e){return JSON.parse(JSON.stringify(e))}},{key:"parseLevelPlaylist",value:function(L,l,A){var 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r,n;null===this.id?(r=e.ErrorDetails.MANIFEST_LOAD_ERROR,n=!0):(r=e.ErrorDetails.LEVEL_LOAD_ERROR,n=!1),this.loader&&this.loader.abort(),this.hls.trigger(t.default.ERROR,{type:e.ErrorTypes.NETWORK_ERROR,details:r,fatal:n,url:this.url,loader:this.loader,response:a.currentTarget,level:this.id,id:this.id2})}},{key:"loadtimeout",value:function(){var r,n;null===this.id?(r=e.ErrorDetails.MANIFEST_LOAD_TIMEOUT,n=!0):(r=e.ErrorDetails.LEVEL_LOAD_TIMEOUT,n=!1),this.loader&&this.loader.abort(),this.hls.trigger(t.default.ERROR,{type:e.ErrorTypes.NETWORK_ERROR,details:r,fatal:n,url:this.url,loader:this.loader,level:this.id,id:this.id2})}}]),r}(i.default);s.default=u},{"../errors":19,"../event-handler":20,"../events":21,"../utils/attr-list":31,"../utils/url":35}],28:[function(a,i,e){"use strict";function t(e,t){if(!(e instanceof t))throw new TypeError("Cannot call a class as a function")}var r=function(){function e(n,r){for(var t=0;t>24&255,t[1]=e>>16&255,t[2]=e>>8&255,t[3]=255&e,t.set(a,4),r=0,e=8;i>r;r++)t.set(n[r],e),e+=n[r].byteLength;return t}},{key:"hdlr",value:function(t){return e.box(e.types.hdlr,e.HDLR_TYPES[t])}},{key:"mdat",value:function(t){return e.box(e.types.mdat,t)}},{key:"mdhd",value:function(t,r){return e.box(e.types.mdhd,new Uint8Array([0,0,0,0,0,0,0,2,0,0,0,3,t>>24&255,t>>16&255,t>>8&255,255&t,r>>24,r>>16&255,r>>8&255,255&r,85,196,0,0]))}},{key:"mdia",value:function(t){return e.box(e.types.mdia,e.mdhd(t.timescale,t.duration),e.hdlr(t.type),e.minf(t))}},{key:"mfhd",value:function(t){return e.box(e.types.mfhd,new Uint8Array([0,0,0,0,t>>24,t>>16&255,t>>8&255,255&t]))}},{key:"minf",value:function(t){return"audio"===t.type?e.box(e.types.minf,e.box(e.types.smhd,e.SMHD),e.DINF,e.stbl(t)):e.box(e.types.minf,e.box(e.types.vmhd,e.VMHD),e.DINF,e.stbl(t))}},{key:"moof",value:function(t,r,n){return e.box(e.types.moof,e.mfhd(t),e.traf(n,r))}},{key:"moov",value:function(t){for(var r=t.length,n=[];r--;)n[r]=e.trak(t[r]);return e.box.apply(null,[e.types.moov,e.mvhd(t[0].timescale,t[0].duration)].concat(n).concat(e.mvex(t)))}},{key:"mvex",value:function(r){for(var t=r.length,n=[];t--;)n[t]=e.trex(r[t]);return e.box.apply(null,[e.types.mvex].concat(n))}},{key:"mvhd",value:function(t,r){var n=new Uint8Array([0,0,0,0,0,0,0,1,0,0,0,2,t>>24&255,t>>16&255,t>>8&255,255&t,r>>24&255,r>>16&255,r>>8&255,255&r,0,1,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,64,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,255,255,255,255]);return e.box(e.types.mvhd,n)}},{key:"sdtp",value:function(i){var r,t,n=i.samples||[],a=new Uint8Array(4+n.length);for(t=0;t>>8&255),n.push(255&i),n=n.concat(Array.prototype.slice.call(a));for(r=0;r>>8&255),s.push(255&i),s=s.concat(Array.prototype.slice.call(a));var u=e.box(e.types.avcC,new 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0!==l)d=this._PTSNormalize(v,l),a=this._PTSNormalize(_,l),i.duration=(a-l)/h,Math.abs(i.duration-1024)>10&&t.logger.log("invalid AAC sample duration at PTS "+Math.round(v/90)+",should be 1024,found :"+Math.round(i.duration)),i.duration=1024,a=1024*h+l;else{var s,p=this.nextAacPts;if(d=this._PTSNormalize(v,p),a=this._PTSNormalize(_,p),s=Math.round(1e3*(d-p)/u),(T||Math.abs(s)<600)&&s){if(s>0)t.logger.log(s+" ms hole between AAC samples detected,filling it");else if(-12>s){t.logger.log(-s+" ms overlapping between AAC samples detected, drop frame"),n.len-=f.byteLength;continue}d=a=p}if(A=Math.max(0,d),E=Math.max(0,a),!(n.len>0))return;o=new Uint8Array(n.len+8),k=new DataView(o.buffer),k.setUint32(0,o.byteLength),o.set(r.default.types.mdat,4)}o.set(f,R),R+=f.byteLength,i={size:f.byteLength,cts:0,duration:0,flags:{isLeading:0,isDependedOn:0,hasRedundancy:0,degradPrio:0,dependsOn:1}},m.push(i),l=a}var 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maxFragLookUpTolerance = 0; + } foundFrag = BinarySearch.search(fragments, (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}`); - // offset should be within fragment boundary - if ((candidate.start + candidate.duration) <= bufferEnd) { + if ((candidate.start + candidate.duration - maxFragLookUpTolerance) <= bufferEnd) { return 1; } - else if (candidate.start > bufferEnd) { + else if (candidate.start - maxFragLookUpTolerance > bufferEnd) { return -1; } return 0; @@ -323,28 +338,49 @@ class StreamController extends EventHandler { /* only monitor frag retrieval time if (video not paused OR first fragment being loaded) AND autoswitching enabled AND not lowest level AND multiple levels */ if (v && (!v.paused || this.loadedmetadata === false) && frag.autoLevel && this.level && this.levels.length > 1) { - var requestDelay = performance.now() - frag.trequest; + let requestDelay = performance.now() - frag.trequest; // monitor fragment load progress after half of expected fragment duration,to stabilize bitrate if (requestDelay > (500 * frag.duration)) { - var loadRate = frag.loaded * 1000 / requestDelay; // byte/s + let 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; } pos = v.currentTime; - var fragLoadedDelay = (frag.expectedLen - frag.loaded) / loadRate; - var bufferStarvationDelay = this.bufferInfo(pos,config.maxBufferHole).end - pos; - var fragLevelNextLoadedDelay = frag.duration * this.levels[hls.nextLoadLevel].bitrate / (8 * loadRate); //bps/Bps - /* if we have less than 2 frag duration in buffer and if frag loaded delay is greater than buffer starvation delay - ... and also bigger than duration needed to load fragment at next level ...*/ - if (bufferStarvationDelay < (2 * frag.duration) && fragLoadedDelay > bufferStarvationDelay && fragLoadedDelay > fragLevelNextLoadedDelay) { - // abort fragment loading ... - logger.warn('loading too slow, abort fragment loading'); - logger.log(`fragLoadedDelay/bufferStarvationDelay/fragLevelNextLoadedDelay :${fragLoadedDelay.toFixed(1)}/${bufferStarvationDelay.toFixed(1)}/${fragLevelNextLoadedDelay.toFixed(1)}`); - //abort fragment loading - frag.loader.abort(); - hls.trigger(Event.FRAG_LOAD_EMERGENCY_ABORTED, {frag: frag}); - // switch back to IDLE state to request new fragment at lowest level - this.state = State.IDLE; + let fragLoadedDelay = (frag.expectedLen - frag.loaded) / loadRate; + let bufferStarvationDelay = this.bufferInfo(pos,config.maxBufferHole).end - pos; + // consider emergency switch down only if we have less than 2 frag buffered AND + // time to finish loading current fragment is bigger than buffer starvation delay + // ie if we risk buffer starvation if bw does not increase quickly + if (bufferStarvationDelay < 2*frag.duration && fragLoadedDelay > bufferStarvationDelay) { + let fragLevelNextLoadedDelay, nextLoadLevel; + // lets iterate through lower level and try to find the biggest one that could avoid rebuffering + // we start from current level - 1 and we step down , until we find a matching level + for (nextLoadLevel = this.level - 1 ; nextLoadLevel >=0 ; nextLoadLevel--) { + // compute time to load next fragment at lower level + // 0.8 : consider only 80% of current bw to be conservative + // 8 = bits per byte (bps/Bps) + fragLevelNextLoadedDelay = frag.duration * this.levels[nextLoadLevel].bitrate / (8 * 0.8 * loadRate); + logger.log(`fragLoadedDelay/bufferStarvationDelay/fragLevelNextLoadedDelay[${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.warn(`loading too slow, abort fragment loading and switch to level ${nextLoadLevel}`); + //abort fragment loading + frag.loader.abort(); + hls.trigger(Event.FRAG_LOAD_EMERGENCY_ABORTED, {frag: frag}); + // switch back to IDLE state to request new fragment at lower level + this.state = State.IDLE; + } } } } diff --git a/dashboard-ui/bower_components/hls.js/src/hls.js b/dashboard-ui/bower_components/hls.js/src/hls.js index c9793b42c2..b88ddc1bbd 100644 --- a/dashboard-ui/bower_components/hls.js/src/hls.js +++ b/dashboard-ui/bower_components/hls.js/src/hls.js @@ -45,6 +45,7 @@ class Hls { maxBufferSize: 60 * 1000 * 1000, maxBufferHole: 0.5, maxSeekHole: 2, + maxFragLookUpTolerance : 0.2, liveSyncDurationCount:3, liveMaxLatencyDurationCount: Infinity, liveSyncDuration: undefined, @@ -223,12 +224,12 @@ class Hls { /** Return the quality level of next loaded fragment **/ get nextLoadLevel() { - return this.levelController.nextLoadLevel(); + return this.levelController.nextLoadLevel; } /** set quality level of next loaded fragment **/ set nextLoadLevel(level) { - this.levelController.level = level; + this.levelController.nextLoadLevel = level; } /** Return first level (index of first level referenced in manifest) diff --git a/dashboard-ui/bower_components/iron-selector/.bower.json b/dashboard-ui/bower_components/iron-selector/.bower.json index c6b481c2cb..66d7d54b0f 100644 --- a/dashboard-ui/bower_components/iron-selector/.bower.json +++ b/dashboard-ui/bower_components/iron-selector/.bower.json @@ -36,7 +36,7 @@ "tag": "v1.3.0", "commit": "1662093611cda3fd29125cdab94a61d3d88093da" }, - "_source": "git://github.com/polymerelements/iron-selector.git", + "_source": "git://github.com/PolymerElements/iron-selector.git", "_target": "^1.0.0", - "_originalSource": "polymerelements/iron-selector" + "_originalSource": "PolymerElements/iron-selector" } \ No newline at end of file