@tarojs/components/dist/taro-components/p-c2fa47e2.system.entry.js

Taro 组件库。

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A=b(b({autoStartLoad:true,startPosition:-1,defaultAudioCodec:undefined,debug:false,capLevelOnFPSDrop:false,capLevelToPlayerSize:false,initialLiveManifestSize:1,maxBufferLength:30,backBufferLength:Infinity,maxBufferSize:60*1e3*1e3,maxBufferHole:.1,highBufferWatchdogPeriod:2,nudgeOffset:.1,nudgeMaxRetry:3,maxFragLookUpTolerance:.25,liveSyncDurationCount:3,liveMaxLatencyDurationCount:Infinity,liveSyncDuration:undefined,liveMaxLatencyDuration:undefined,maxLiveSyncPlaybackRate:1,liveDurationInfinity:false,liveBackBufferLength:null,maxMaxBufferLength:600,enableWorker:true,enableSoftwareAES:true,manifestLoadingTimeOut:1e4,manifestLoadingMaxRetry:1,manifestLoadingRetryDelay:1e3,manifestLoadingMaxRetryTimeout:64e3,startLevel:undefined,levelLoadingTimeOut:1e4,levelLoadingMaxRetry:4,levelLoadingRetryDelay:1e3,levelLoadingMaxRetryTimeout:64e3,fragLoadingTimeOut:2e4,fragLoadingMaxRetry:6,fragLoadingRetryDelay:1e3,fragLoadingMaxRetryTimeout:64e3,startFragPrefetch:false,fpsDroppedMonitoringPeriod:5e3,fpsDroppedMonitoringThreshold:.2,appendErrorMaxRetry:3,loader:v["default"],fLoader:undefined,pLoader:undefined,xhrSetup:undefined,licenseXhrSetup:undefined,licenseResponseCallback:undefined,abrController:i["default"],bufferController:l["default"],capLevelController:f["default"],fpsController:d["default"],stretchShortVideoTrack:false,maxAudioFramesDrift:1,forceKeyFrameOnDiscontinuity:true,abrEwmaFastLive:3,abrEwmaSlowLive:9,abrEwmaFastVoD:3,abrEwmaSlowVoD:9,abrEwmaDefaultEstimate:5e5,abrBandWidthFactor:.95,abrBandWidthUpFactor:.7,abrMaxWithRealBitrate:false,maxStarvationDelay:4,maxLoadingDelay:4,minAutoBitrate:0,emeEnabled:false,widevineLicenseUrl:undefined,drmSystemOptions:{},requestMediaKeySystemAccessFunc:m["requestMediaKeySystemAccess"],testBandwidth:true,progressive:false,lowLatencyMode:true,cmcd:undefined},L()),{},{subtitleStreamController:s["SubtitleStreamController"],subtitleTrackController:o["default"],timelineController:u["TimelineController"],audioStreamController:n["default"],audioTrackController:a["default"],emeController:c["default"],cmcdController:h["default"]});function L(){return{cueHandler:p["default"],enableCEA708Captions:true,enableWebVTT:true,enableIMSC1:true,captionsTextTrack1Label:"English",captionsTextTrack1LanguageCode:"en",captionsTextTrack2Label:"Spanish",captionsTextTrack2LanguageCode:"es",captionsTextTrack3Label:"Unknown CC",captionsTextTrack3LanguageCode:"",captionsTextTrack4Label:"Unknown CC",captionsTextTrack4LanguageCode:"",renderTextTracksNatively:true}}function D(e,t){if((t.liveSyncDurationCount||t.liveMaxLatencyDurationCount)&&(t.liveSyncDuration||t.liveMaxLatencyDuration)){throw new Error("Illegal hls.js config: don't mix up liveSyncDurationCount/liveMaxLatencyDurationCount and liveSyncDuration/liveMaxLatencyDuration")}if(t.liveMaxLatencyDurationCount!==undefined&&(t.liveSyncDurationCount===undefined||t.liveMaxLatencyDurationCount<=t.liveSyncDurationCount)){throw new Error('Illegal hls.js config: "liveMaxLatencyDurationCount" must be greater than "liveSyncDurationCount"')}if(t.liveMaxLatencyDuration!==undefined&&(t.liveSyncDuration===undefined||t.liveMaxLatencyDuration<=t.liveSyncDuration)){throw new Error('Illegal hls.js config: "liveMaxLatencyDuration" must be greater than "liveSyncDuration"')}return E({},e,t)}function k(e){var t=e.loader;if(t!==g["default"]&&t!==v["default"]){y["logger"].log("[config]: Custom loader detected, cannot enable progressive streaming");e.progressive=false}else{var r=Object(g["fetchSupported"])();if(r){e.loader=g["default"];e.progressive=true;e.enableSoftwareAES=true;y["logger"].log("[config]: Progressive streaming enabled, using FetchLoader")}}}},"./src/controller/abr-controller.ts":
/*!******************************************!*\
                !*** ./src/controller/abr-controller.ts ***!
                \******************************************/
/*! exports provided: default */function(e,t,r){r.r(t);var i=r(/*! ./src/polyfills/number */"./src/polyfills/number.ts");var n=r(/*! ../utils/ewma-bandwidth-estimator */"./src/utils/ewma-bandwidth-estimator.ts");var a=r(/*! ../events */"./src/events.ts");var s=r(/*! ../utils/buffer-helper */"./src/utils/buffer-helper.ts");var o=r(/*! ../errors */"./src/errors.ts");var l=r(/*! ../types/loader */"./src/types/loader.ts");var u=r(/*! ../utils/logger */"./src/utils/logger.ts");function f(e,t){for(var r=0;r<t.length;r++){var i=t[r];i.enumerable=i.enumerable||false;i.configurable=true;if("value"in i)i.writable=true;Object.defineProperty(e,i.key,i)}}function d(e,t,r){if(t)f(e.prototype,t);if(r)f(e,r);return e}var c=function(){function e(e){this.hls=void 0;this.lastLoadedFragLevel=0;this._nextAutoLevel=-1;this.timer=void 0;this.onCheck=this._abandonRulesCheck.bind(this);this.fragCurrent=null;this.partCurrent=null;this.bitrateTestDelay=0;this.bwEstimator=void 0;this.hls=e;var t=e.config;this.bwEstimator=new n["default"](t.abrEwmaSlowVoD,t.abrEwmaFastVoD,t.abrEwmaDefaultEstimate);this.registerListeners()}var t=e.prototype;t.registerListeners=function e(){var t=this.hls;t.on(a["Events"].FRAG_LOADING,this.onFragLoading,this);t.on(a["Events"].FRAG_LOADED,this.onFragLoaded,this);t.on(a["Events"].FRAG_BUFFERED,this.onFragBuffered,this);t.on(a["Events"].LEVEL_LOADED,this.onLevelLoaded,this);t.on(a["Events"].ERROR,this.onError,this)};t.unregisterListeners=function e(){var t=this.hls;t.off(a["Events"].FRAG_LOADING,this.onFragLoading,this);t.off(a["Events"].FRAG_LOADED,this.onFragLoaded,this);t.off(a["Events"].FRAG_BUFFERED,this.onFragBuffered,this);t.off(a["Events"].LEVEL_LOADED,this.onLevelLoaded,this);t.off(a["Events"].ERROR,this.onError,this)};t.destroy=function e(){this.unregisterListeners();this.clearTimer();this.hls=this.onCheck=null;this.fragCurrent=this.partCurrent=null};t.onFragLoading=function e(t,r){var i=r.frag;if(i.type===l["PlaylistLevelType"].MAIN){if(!this.timer){var n;this.fragCurrent=i;this.partCurrent=(n=r.part)!=null?n:null;this.timer=self.setInterval(this.onCheck,100)}}};t.onLevelLoaded=function e(t,r){var i=this.hls.config;if(r.details.live){this.bwEstimator.update(i.abrEwmaSlowLive,i.abrEwmaFastLive)}else{this.bwEstimator.update(i.abrEwmaSlowVoD,i.abrEwmaFastVoD)}};t._abandonRulesCheck=function e(){var t=this.fragCurrent,r=this.partCurrent,n=this.hls;var o=n.autoLevelEnabled,l=n.config,f=n.media;if(!t||!f){return}var d=r?r.stats:t.stats;var c=r?r.duration:t.duration;if(d.aborted){u["logger"].warn("frag loader destroy or aborted, disarm abandonRules");this.clearTimer();this._nextAutoLevel=-1;return}if(!o||f.paused||!f.playbackRate||!f.readyState){return}var h=performance.now()-d.loading.start;var v=Math.abs(f.playbackRate);if(h<=500*c/v){return}var g=n.levels,p=n.minAutoLevel;var m=g[t.level];var y=d.total||Math.max(d.loaded,Math.round(c*m.maxBitrate/8));var E=Math.max(1,d.bwEstimate?d.bwEstimate/8:d.loaded*1e3/h);var T=(y-d.loaded)/E;var b=f.currentTime;var S=(s["BufferHelper"].bufferInfo(f,b,l.maxBufferHole).end-b)/v;if(S>=2*c/v||T<=S){return}var A=Number.POSITIVE_INFINITY;var L;for(L=t.level-1;L>p;L--){var D=g[L].maxBitrate;A=c*D/(8*.8*E);if(A<S){break}}if(A>=T){return}var k=this.bwEstimator.getEstimate();u["logger"].warn("Fragment "+t.sn+(r?" part "+r.index:"")+" of level "+t.level+" is loading too slowly and will cause an underbuffer; aborting and switching to level "+L+"\n      Current BW estimate: "+(Object(i["isFiniteNumber"])(k)?(k/1024).toFixed(3):"Unknown")+" Kb/s\n      Estimated load time for current fragment: "+T.toFixed(3)+" s\n      Estimated load time for the next fragment: "+A.toFixed(3)+" s\n      Time to underbuffer: "+S.toFixed(3)+" s");n.nextLoadLevel=L;this.bwEstimator.sample(h,d.loaded);this.clearTimer();if(t.loader){this.fragCurrent=this.partCurrent=null;t.loader.abort()}n.trigger(a["Events"].FRAG_LOAD_EMERGENCY_ABORTED,{frag:t,part:r,stats:d})};t.onFragLoaded=function e(t,r){var n=r.frag,s=r.part;if(n.type===l["PlaylistLevelType"].MAIN&&Object(i["isFiniteNumber"])(n.sn)){var o=s?s.stats:n.stats;var u=s?s.duration:n.duration;this.clearTimer();this.lastLoadedFragLevel=n.level;this._nextAutoLevel=-1;if(this.hls.config.abrMaxWithRealBitrate){var f=this.hls.levels[n.level];var d=(f.loaded?f.loaded.bytes:0)+o.loaded;var c=(f.loaded?f.loaded.duration:0)+u;f.loaded={bytes:d,duration:c};f.realBitrate=Math.round(8*d/c)}if(n.bitrateTest){var h={stats:o,frag:n,part:s,id:n.type};this.onFragBuffered(a["Events"].FRAG_BUFFERED,h);n.bitrateTest=false}}};t.onFragBuffered=function e(t,r){var i=r.frag,n=r.part;var a=n?n.stats:i.stats;if(a.aborted){return}if(i.type!==l["PlaylistLevelType"].MAIN||i.sn==="initSegment"){return}var s=a.parsing.end-a.loading.start;this.bwEstimator.sample(s,a.loaded);a.bwEstimate=this.bwEstimator.getEstimate();if(i.bitrateTest){this.bitrateTestDelay=s/1e3}else{this.bitrateTestDelay=0}};t.onError=function e(t,r){switch(r.details){case o["ErrorDetails"].FRAG_LOAD_ERROR:case o["ErrorDetails"].FRAG_LOAD_TIMEOUT:this.clearTimer();break}};t.clearTimer=function e(){self.clearInterval(this.timer);this.timer=undefined};t.getNextABRAutoLevel=function e(){var t=this.fragCurrent,r=this.partCurrent,i=this.hls;var n=i.maxAutoLevel,a=i.config,o=i.minAutoLevel,l=i.media;var f=r?r.duration:t?t.duration:0;var d=l?l.currentTime:0;var c=l&&l.playbackRate!==0?Math.abs(l.playbackRate):1;var h=this.bwEstimator?this.bwEstimator.getEstimate():a.abrEwmaDefaultEstimate;var v=(s["BufferHelper"].bufferInfo(l,d,a.maxBufferHole).end-d)/c;var g=this.findBestLevel(h,o,n,v,a.abrBandWidthFactor,a.abrBandWidthUpFactor);if(g>=0){return g}u["logger"].trace((v?"rebuffering expected":"buffer is empty")+", finding optimal quality level");var p=f?Math.min(f,a.maxStarvationDelay):a.maxStarvationDelay;var m=a.abrBandWidthFactor;var y=a.abrBandWidthUpFactor;if(!v){var E=this.bitrateTestDelay;if(E){var T=f?Math.min(f,a.maxLoadingDelay):a.maxLoadingDelay;p=T-E;u["logger"].trace("bitrate test took "+Math.round(1e3*E)+"ms, set first fragment max fetchDuration to "+Math.round(1e3*p)+" ms");m=y=1}}g=this.findBestLevel(h,o,n,v+p,m,y);return Math.max(g,0)};t.findBestLevel=function e(t,r,i,n,a,s){var o;var l=this.fragCurrent,f=this.partCurrent,d=this.lastLoadedFragLevel;var c=this.hls.levels;var h=c[d];var v=!!(h!==null&&h!==void 0&&(o=h.details)!==null&&o!==void 0&&o.live);var g=h===null||h===void 0?void 0:h.codecSet;var p=f?f.duration:l?l.duration:0;for(var m=i;m>=r;m--){var y=c[m];if(!y||g&&y.codecSet!==g){continue}var E=y.details;var T=(f?E===null||E===void 0?void 0:E.partTarget:E===null||E===void 0?void 0:E.averagetargetduration)||p;var b=void 0;if(m<=d){b=a*t}else{b=s*t}var S=c[m].maxBitrate;var A=S*T/b;u["logger"].trace("level/adjustedbw/bitrate/avgDuration/maxFetchDuration/fetchDuration: "+m+"/"+Math.round(b)+"/"+S+"/"+T+"/"+n+"/"+A);if(b>S&&(!A||v&&!this.bitrateTestDelay||A<n)){return m}}return-1};d(e,[{key:"nextAutoLevel",get:function e(){var t=this._nextAutoLevel;var r=this.bwEstimator;if(t!==-1&&(!r||!r.canEstimate())){return t}var i=this.getNextABRAutoLevel();if(t!==-1){i=Math.min(t,i)}return i},set:function e(t){this._nextAutoLevel=t}}]);return e}();t["default"]=c},"./src/controller/audio-stream-controller.ts":
/*!***************************************************!*\
                !*** ./src/controller/audio-stream-controller.ts ***!
                \***************************************************/
/*! exports provided: default */function(e,t,r){r.r(t);var i=r(/*! ./src/polyfills/number */"./src/polyfills/number.ts");var n=r(/*! ./base-stream-controller */"./src/controller/base-stream-controller.ts");var a=r(/*! ../events */"./src/events.ts");var s=r(/*! ../utils/buffer-helper */"./src/utils/buffer-helper.ts");var o=r(/*! ./fragment-tracker */"./src/controller/fragment-tracker.ts");var l=r(/*! ../types/level */"./src/types/level.ts");var u=r(/*! ../types/loader */"./src/types/loader.ts");var f=r(/*! ../loader/fragment */"./src/loader/fragment.ts");var d=r(/*! ../demux/chunk-cache */"./src/demux/chunk-cache.ts");var c=r(/*! ../demux/transmuxer-interface */"./src/demux/transmuxer-interface.ts");var h=r(/*! ../types/transmuxer */"./src/types/transmuxer.ts");var v=r(/*! ./fragment-finders */"./src/controller/fragment-finders.ts");var g=r(/*! ../utils/discontinuities */"./src/utils/discontinuities.ts");var p=r(/*! ../errors */"./src/errors.ts");var m=r(/*! ../utils/logger */"./src/utils/logger.ts");function y(){y=Object.assign||function(e){for(var t=1;t<arguments.length;t++){var r=arguments[t];for(var i in r){if(Object.prototype.hasOwnProperty.call(r,i)){e[i]=r[i]}}}return e};return y.apply(this,arguments)}function E(e,t){e.prototype=Object.create(t.prototype);e.prototype.constructor=e;T(e,t)}function T(e,t){T=Object.setPrototypeOf||function e(t,r){t.__proto__=r;return t};return T(e,t)}var b=100;var S=function(e){E(t,e);function t(t,r){var i;i=e.call(this,t,r,"[audio-stream-controller]")||this;i.videoBuffer=null;i.videoTrackCC=-1;i.waitingVideoCC=-1;i.audioSwitch=false;i.trackId=-1;i.waitingData=null;i.mainDetails=null;i.bufferFlushed=false;i._registerListeners();return i}var r=t.prototype;r.onHandlerDestroying=function e(){this._unregisterListeners();this.mainDetails=null};r._registerListeners=function e(){var t=this.hls;t.on(a["Events"].MEDIA_ATTACHED,this.onMediaAttached,this);t.on(a["Events"].MEDIA_DETACHING,this.onMediaDetaching,this);t.on(a["Events"].MANIFEST_LOADING,this.onManifestLoading,this);t.on(a["Events"].LEVEL_LOADED,this.onLevelLoaded,this);t.on(a["Events"].AUDIO_TRACKS_UPDATED,this.onAudioTracksUpdated,this);t.on(a["Events"].AUDIO_TRACK_SWITCHING,this.onAudioTrackSwitching,this);t.on(a["Events"].AUDIO_TRACK_LOADED,this.onAudioTrackLoaded,this);t.on(a["Events"].ERROR,this.onError,this);t.on(a["Events"].BUFFER_RESET,this.onBufferReset,this);t.on(a["Events"].BUFFER_CREATED,this.onBufferCreated,this);t.on(a["Events"].BUFFER_FLUSHED,this.onBufferFlushed,this);t.on(a["Events"].INIT_PTS_FOUND,this.onInitPtsFound,this);t.on(a["Events"].FRAG_BUFFERED,this.onFragBuffered,this)};r._unregisterListeners=function e(){var t=this.hls;t.off(a["Events"].MEDIA_ATTACHED,this.onMediaAttached,this);t.off(a["Events"].MEDIA_DETACHING,this.onMediaDetaching,this);t.off(a["Events"].MANIFEST_LOADING,this.onManifestLoading,this);t.off(a["Events"].LEVEL_LOADED,this.onLevelLoaded,this);t.off(a["Events"].AUDIO_TRACKS_UPDATED,this.onAudioTracksUpdated,this);t.off(a["Events"].AUDIO_TRACK_SWITCHING,this.onAudioTrackSwitching,this);t.off(a["Events"].AUDIO_TRACK_LOADED,this.onAudioTrackLoaded,this);t.off(a["Events"].ERROR,this.onError,this);t.off(a["Events"].BUFFER_RESET,this.onBufferReset,this);t.off(a["Events"].BUFFER_CREATED,this.onBufferCreated,this);t.off(a["Events"].BUFFER_FLUSHED,this.onBufferFlushed,this);t.off(a["Events"].INIT_PTS_FOUND,this.onInitPtsFound,this);t.off(a["Events"].FRAG_BUFFERED,this.onFragBuffered,this)};r.onInitPtsFound=function e(t,r){var i=r.frag,a=r.id,s=r.initPTS;if(a==="main"){var o=i.cc;this.initPTS[i.cc]=s;this.log("InitPTS for cc: "+o+" found from main: "+s);this.videoTrackCC=o;if(this.state===n["State"].WAITING_INIT_PTS){this.tick()}}};r.startLoad=function e(t){if(!this.levels){this.startPosition=t;this.state=n["State"].STOPPED;return}var r=this.lastCurrentTime;this.stopLoad();this.setInterval(b);this.fragLoadError=0;if(r>0&&t===-1){this.log("Override startPosition with lastCurrentTime @"+r.toFixed(3));this.state=n["State"].IDLE}else{this.loadedmetadata=false;this.state=n["State"].WAITING_TRACK}this.nextLoadPosition=this.startPosition=this.lastCurrentTime=t;this.tick()};r.doTick=function t(){switch(this.state){case n["State"].IDLE:this.doTickIdle();break;case n["State"].WAITING_TRACK:{var r;var i=this.levels,a=this.trackId;var o=i===null||i===void 0?void 0:(r=i[a])===null||r===void 0?void 0:r.details;if(o){if(this.waitForCdnTuneIn(o)){break}this.state=n["State"].WAITING_INIT_PTS}break}case n["State"].FRAG_LOADING_WAITING_RETRY:{var l;var u=performance.now();var f=this.retryDate;if(!f||u>=f||(l=this.media)!==null&&l!==void 0&&l.seeking){this.log("RetryDate reached, switch back to IDLE state");this.state=n["State"].IDLE}break}case n["State"].WAITING_INIT_PTS:{var d=this.waitingData;if(d){var c=d.frag,h=d.part,g=d.cache,p=d.complete;if(this.initPTS[c.cc]!==undefined){this.waitingData=null;this.waitingVideoCC=-1;this.state=n["State"].FRAG_LOADING;var y=g.flush();var E={frag:c,part:h,payload:y,networkDetails:null};this._handleFragmentLoadProgress(E);if(p){e.prototype._handleFragmentLoadComplete.call(this,E)}}else if(this.videoTrackCC!==this.waitingVideoCC){m["logger"].log("Waiting fragment cc ("+c.cc+") cancelled because video is at cc "+this.videoTrackCC);this.clearWaitingFragment()}else{var T=this.getLoadPosition();var b=s["BufferHelper"].bufferInfo(this.mediaBuffer,T,this.config.maxBufferHole);var S=Object(v["fragmentWithinToleranceTest"])(b.end,this.config.maxFragLookUpTolerance,c);if(S<0){m["logger"].log("Waiting fragment cc ("+c.cc+") @ "+c.start+" cancelled because another fragment at "+b.end+" is needed");this.clearWaitingFragment()}}}else{this.state=n["State"].IDLE}}}this.onTickEnd()};r.clearWaitingFragment=function e(){var t=this.waitingData;if(t){this.fragmentTracker.removeFragment(t.frag);this.waitingData=null;this.waitingVideoCC=-1;this.state=n["State"].IDLE}};r.onTickEnd=function e(){var t=this.media;if(!t||!t.readyState){return}var r=this.mediaBuffer?this.mediaBuffer:t;var i=r.buffered;if(!this.loadedmetadata&&i.length){this.loadedmetadata=true}this.lastCurrentTime=t.currentTime};r.doTickIdle=function e(){var t,r;var i=this.hls,s=this.levels,o=this.media,l=this.trackId;var d=i.config;if(!s||!s[l]){return}if(!o&&(this.startFragRequested||!d.startFragPrefetch)){return}var c=s[l];var h=c.details;if(!h||h.live&&this.levelLastLoaded!==l||this.waitForCdnTuneIn(h)){this.state=n["State"].WAITING_TRACK;return}if(this.bufferFlushed){this.bufferFlushed=false;this.afterBufferFlushed(this.mediaBuffer?this.mediaBuffer:this.media,f["ElementaryStreamTypes"].AUDIO,u["PlaylistLevelType"].AUDIO)}var v=this.getFwdBufferInfo(this.mediaBuffer?this.mediaBuffer:this.media,u["PlaylistLevelType"].AUDIO);if(v===null){return}var g=v.len;var p=this.getMaxBufferLength();var m=this.audioSwitch;if(g>=p&&!m){return}if(!m&&this._streamEnded(v,h)){i.trigger(a["Events"].BUFFER_EOS,{type:"audio"});this.state=n["State"].ENDED;return}var y=h.fragments;var E=y[0].start;var T=v.end;if(m){var b=this.getLoadPosition();T=b;if(h.PTSKnown&&b<E){if(v.end>E||v.nextStart){this.log("Alt audio track ahead of main track, seek to start of alt audio track");o.currentTime=E+.05}}}var S=this.getNextFragment(T,h);if(!S){this.bufferFlushed=true;return}if(((t=S.decryptdata)===null||t===void 0?void 0:t.keyFormat)==="identity"&&!((r=S.decryptdata)!==null&&r!==void 0&&r.key)){this.loadKey(S,h)}else{this.loadFragment(S,h,T)}};r.getMaxBufferLength=function t(){var r=e.prototype.getMaxBufferLength.call(this);var i=this.getFwdBufferInfo(this.videoBuffer?this.videoBuffer:this.media,u["PlaylistLevelType"].MAIN);if(i===null){return r}return Math.max(r,i.len)};r.onMediaDetaching=function t(){this.videoBuffer=null;e.prototype.onMediaDetaching.call(this)};r.onAudioTracksUpdated=function e(t,r){var i=r.audioTracks;this.resetTransmuxer();this.levels=i.map((function(e){return new l["Level"](e)}))};r.onAudioTrackSwitching=function e(t,r){var i=!!r.url;this.trackId=r.id;var a=this.fragCurrent;if(a!==null&&a!==void 0&&a.loader){a.loader.abort()}this.fragCurrent=null;this.clearWaitingFragment();if(!i){this.resetTransmuxer()}else{this.setInterval(b)}if(i){this.audioSwitch=true;this.state=n["State"].IDLE}else{this.state=n["State"].STOPPED}this.tick()};r.onManifestLoading=function e(){this.mainDetails=null;this.fragmentTracker.removeAllFragments();this.startPosition=this.lastCurrentTime=0;this.bufferFlushed=false};r.onLevelLoaded=function e(t,r){this.mainDetails=r.details};r.onAudioTrackLoaded=function e(t,r){var i;var a=this.levels;var s=r.details,o=r.id;if(!a){this.warn("Audio tracks were reset while loading level "+o);return}this.log("Track "+o+" loaded ["+s.startSN+","+s.endSN+"],duration:"+s.totalduration);var l=a[o];var u=0;if(s.live||(i=l.details)!==null&&i!==void 0&&i.live){var f=this.mainDetails;if(!s.fragments[0]){s.deltaUpdateFailed=true}if(s.deltaUpdateFailed||!f){return}if(!l.details&&s.hasProgramDateTime&&f.hasProgramDateTime){Object(g["alignMediaPlaylistByPDT"])(s,f);u=s.fragments[0].start}else{u=this.alignPlaylists(s,l.details)}}l.details=s;this.levelLastLoaded=o;if(!this.startFragRequested&&(this.mainDetails||!s.live)){this.setStartPosition(l.details,u)}if(this.state===n["State"].WAITING_TRACK&&!this.waitForCdnTuneIn(s)){this.state=n["State"].IDLE}this.tick()};r._handleFragmentLoadProgress=function e(t){var r;var i=t.frag,a=t.part,s=t.payload;var o=this.config,l=this.trackId,f=this.levels;if(!f){this.warn("Audio tracks were reset while fragment load was in progress. Fragment "+i.sn+" of level "+i.level+" will not be buffered");return}var v=f[l];console.assert(v,"Audio track is defined on fragment load progress");var g=v.details;console.assert(g,"Audio track details are defined on fragment load progress");var p=o.defaultAudioCodec||v.audioCodec||"mp4a.40.2";var y=this.transmuxer;if(!y){y=this.transmuxer=new c["default"](this.hls,u["PlaylistLevelType"].AUDIO,this._handleTransmuxComplete.bind(this),this._handleTransmuxerFlush.bind(this))}var E=this.initPTS[i.cc];var T=(r=i.initSegment)===null||r===void 0?void 0:r.data;if(E!==undefined){var b=false;var S=a?a.index:-1;var A=S!==-1;var L=new h["ChunkMetadata"](i.level,i.sn,i.stats.chunkCount,s.byteLength,S,A);y.push(s,T,p,"",i,a,g.totalduration,b,L,E)}else{m["logger"].log("Unknown video PTS for cc "+i.cc+", waiting for video PTS before demuxing audio frag "+i.sn+" of ["+g.startSN+" ,"+g.endSN+"],track "+l);var D=this.waitingData=this.waitingData||{frag:i,part:a,cache:new d["default"],complete:false},k=D.cache;k.push(new Uint8Array(s));this.waitingVideoCC=this.videoTrackCC;this.state=n["State"].WAITING_INIT_PTS}};r._handleFragmentLoadComplete=function t(r){if(this.waitingData){this.waitingData.complete=true;return}e.prototype._handleFragmentLoadComplete.call(this,r)};r.onBufferReset=function e(){this.mediaBuffer=this.videoBuffer=null;this.loadedmetadata=false};r.onBufferCreated=function e(t,r){var i=r.tracks.audio;if(i){this.mediaBuffer=i.buffer}if(r.tracks.video){this.videoBuffer=r.tracks.video.buffer}};r.onFragBuffered=function e(t,r){var i=r.frag,n=r.part;if(i.type!==u["PlaylistLevelType"].AUDIO){return}if(this.fragContextChanged(i)){this.warn("Fragment "+i.sn+(n?" p: "+n.index:"")+" of level "+i.level+" finished buffering, but was aborted. state: "+this.state+", audioSwitch: "+this.audioSwitch);return}if(i.sn!=="initSegment"){this.fragPrevious=i;if(this.audioSwitch){this.audioSwitch=false;this.hls.trigger(a["Events"].AUDIO_TRACK_SWITCHED,{id:this.trackId})}}this.fragBufferedComplete(i,n)};r.onError=function t(r,i){switch(i.details){case p["ErrorDetails"].FRAG_LOAD_ERROR:case p["ErrorDetails"].FRAG_LOAD_TIMEOUT:case p["ErrorDetails"].KEY_LOAD_ERROR:case p["ErrorDetails"].KEY_LOAD_TIMEOUT:this.onFragmentOrKeyLoadError(u["PlaylistLevelType"].AUDIO,i);break;case p["ErrorDetails"].AUDIO_TRACK_LOAD_ERROR:case p["ErrorDetails"].AUDIO_TRACK_LOAD_TIMEOUT:if(this.state!==n["State"].ERROR&&this.state!==n["State"].STOPPED){this.state=i.fatal?n["State"].ERROR:n["State"].IDLE;this.warn(i.details+" while loading frag, switching to "+this.state+" state")}break;case p["ErrorDetails"].BUFFER_FULL_ERROR:if(i.parent==="audio"&&(this.state===n["State"].PARSING||this.state===n["State"].PARSED)){var a=true;var s=this.getFwdBufferInfo(this.mediaBuffer,u["PlaylistLevelType"].AUDIO);if(s&&s.len>.5){a=!this.reduceMaxBufferLength(s.len)}if(a){this.warn("Buffer full error also media.currentTime is not buffered, flush audio buffer");this.fragCurrent=null;e.prototype.flushMainBuffer.call(this,0,Number.POSITIVE_INFINITY,"audio")}this.resetLoadingState()}break}};r.onBufferFlushed=function e(t,r){var i=r.type;if(i===f["ElementaryStreamTypes"].AUDIO){this.bufferFlushed=true}};r._handleTransmuxComplete=function e(t){var r;var i="audio";var s=this.hls;var o=t.remuxResult,l=t.chunkMeta;var u=this.getCurrentContext(l);if(!u){this.warn("The loading context changed while buffering fragment "+l.sn+" of level "+l.level+". This chunk will not be buffered.");this.resetLiveStartWhenNotLoaded(l.level);return}var d=u.frag,c=u.part;var h=o.audio,v=o.text,g=o.id3,p=o.initSegment;if(this.fragContextChanged(d)){return}this.state=n["State"].PARSING;if(this.audioSwitch&&h){this.completeAudioSwitch()}if(p!==null&&p!==void 0&&p.tracks){this._bufferInitSegment(p.tracks,d,l);s.trigger(a["Events"].FRAG_PARSING_INIT_SEGMENT,{frag:d,id:i,tracks:p.tracks})}if(h){var m=h.startPTS,E=h.endPTS,T=h.startDTS,b=h.endDTS;if(c){c.elementaryStreams[f["ElementaryStreamTypes"].AUDIO]={startPTS:m,endPTS:E,startDTS:T,endDTS:b}}d.setElementaryStreamInfo(f["ElementaryStreamTypes"].AUDIO,m,E,T,b);this.bufferFragmentData(h,d,c,l)}if(g!==null&&g!==void 0&&(r=g.samples)!==null&&r!==void 0&&r.length){var S=y({frag:d,id:i},g);s.trigger(a["Events"].FRAG_PARSING_METADATA,S)}if(v){var A=y({frag:d,id:i},v);s.trigger(a["Events"].FRAG_PARSING_USERDATA,A)}};r._bufferInitSegment=function e(t,r,i){if(this.state!==n["State"].PARSING){return}if(t.video){delete t.video}var s=t.audio;if(!s){return}s.levelCodec=s.codec;s.id="audio";this.log("Init audio buffer, container:"+s.container+", codecs[parsed]=["+s.codec+"]");this.hls.trigger(a["Events"].BUFFER_CODECS,t);var o=s.initSegment;if(o!==null&&o!==void 0&&o.byteLength){var l={type:"audio",frag:r,part:null,chunkMeta:i,parent:r.type,data:o};this.hls.trigger(a["Events"].BUFFER_APPENDING,l)}this.tick()};r.loadFragment=function t(r,a,s){var l=this.fragmentTracker.getState(r);this.fragCurrent=r;if(this.audioSwitch||l===o["FragmentState"].NOT_LOADED||l===o["FragmentState"].PARTIAL){if(r.sn==="initSegment"){this._loadInitSegment(r)}else if(a.live&&!Object(i["isFiniteNumber"])(this.initPTS[r.cc])){this.log("Waiting for video PTS in continuity counter "+r.cc+" of live stream before loading audio fragment "+r.sn+" of level "+this.trackId);this.state=n["State"].WAITING_INIT_PTS}else{this.startFragRequested=true;e.prototype.loadFragment.call(this,r,a,s)}}};r.completeAudioSwitch=function t(){var r=this.hls,i=this.media,n=this.trackId;if(i){this.log("Switching audio track : flushing all audio");e.prototype.flushMainBuffer.call(this,0,Number.POSITIVE_INFINITY,"audio")}this.audioSwitch=false;r.trigger(a["Events"].AUDIO_TRACK_SWITCHED,{id:n})};return t}(n["default"]);t["default"]=S},"./src/controller/audio-track-controller.ts":
/*!**************************************************!*\
                !*** ./src/controller/audio-track-controller.ts ***!
                \**************************************************/
/*! exports provided: default */function(e,t,r){r.r(t);var i=r(/*! ../events */"./src/events.ts");var n=r(/*! ../errors */"./src/errors.ts");var a=r(/*! ./base-playlist-controller */"./src/controller/base-playlist-controller.ts");var s=r(/*! ../types/loader */"./src/types/loader.ts");function o(e,t){for(var r=0;r<t.length;r++){var i=t[r];i.enumerable=i.enumerable||false;i.configurable=true;if("value"in i)i.writable=true;Object.defineProperty(e,i.key,i)}}function l(e,t,r){if(t)o(e.prototype,t);if(r)o(e,r);return e}function u(e,t){e.prototype=Object.create(t.prototype);e.prototype.constructor=e;f(e,t)}function f(e,t){f=Object.setPrototypeOf||function e(t,r){t.__proto__=r;return t};return f(e,t)}var d=function(e){u(t,e);function t(t){var r;r=e.call(this,t,"[audio-track-controller]")||this;r.tracks=[];r.groupId=null;r.tracksInGroup=[];r.trackId=-1;r.trackName="";r.selectDefaultTrack=true;r.registerListeners();return r}var r=t.prototype;r.registerListeners=function e(){var t=this.hls;t.on(i["Events"].MANIFEST_LOADING,this.onManifestLoading,this);t.on(i["Events"].MANIFEST_PARSED,this.onManifestParsed,this);t.on(i["Events"].LEVEL_LOADING,this.onLevelLoading,this);t.on(i["Events"].LEVEL_SWITCHING,this.onLevelSwitching,this);t.on(i["Events"].AUDIO_TRACK_LOADED,this.onAudioTrackLoaded,this);t.on(i["Events"].ERROR,this.onError,this)};r.unregisterListeners=function e(){var t=this.hls;t.off(i["Events"].MANIFEST_LOADING,this.onManifestLoading,this);t.off(i["Events"].MANIFEST_PARSED,this.onManifestParsed,this);t.off(i["Events"].LEVEL_LOADING,this.onLevelLoading,this);t.off(i["Events"].LEVEL_SWITCHING,this.onLevelSwitching,this);t.off(i["Events"].AUDIO_TRACK_LOADED,this.onAudioTrackLoaded,this);t.off(i["Events"].ERROR,this.onError,this)};r.destroy=function t(){this.unregisterListeners();this.tracks.length=0;this.tracksInGroup.length=0;e.prototype.destroy.call(this)};r.onManifestLoading=function e(){this.tracks=[];this.groupId=null;this.tracksInGroup=[];this.trackId=-1;this.trackName="";this.selectDefaultTrack=true};r.onManifestParsed=function e(t,r){this.tracks=r.audioTracks||[]};r.onAudioTrackLoaded=function e(t,r){var i=r.id,n=r.details;var a=this.tracksInGroup[i];if(!a){this.warn("Invalid audio track id "+i);return}var s=a.details;a.details=r.details;this.log("audioTrack "+i+" loaded ["+n.startSN+"-"+n.endSN+"]");if(i===this.trackId){this.retryCount=0;this.playlistLoaded(i,r,s)}};r.onLevelLoading=function e(t,r){this.switchLevel(r.level)};r.onLevelSwitching=function e(t,r){this.switchLevel(r.level)};r.switchLevel=function e(t){var r=this.hls.levels[t];if(!(r!==null&&r!==void 0&&r.audioGroupIds)){return}var n=r.audioGroupIds[r.urlId];if(this.groupId!==n){this.groupId=n;var a=this.tracks.filter((function(e){return!n||e.groupId===n}));if(this.selectDefaultTrack&&!a.some((function(e){return e.default}))){this.selectDefaultTrack=false}this.tracksInGroup=a;var s={audioTracks:a};this.log("Updating audio tracks, "+a.length+' track(s) found in "'+n+'" group-id');this.hls.trigger(i["Events"].AUDIO_TRACKS_UPDATED,s);this.selectInitialTrack()}};r.onError=function t(r,i){e.prototype.onError.call(this,r,i);if(i.fatal||!i.context){return}if(i.context.type===s["PlaylistContextType"].AUDIO_TRACK&&i.context.id===this.trackId&&i.context.groupId===this.groupId){this.retryLoadingOrFail(i)}};r.setAudioTrack=function e(t){var r=this.tracksInGroup;if(t<0||t>=r.length){this.warn("Invalid id passed to audio-track controller");return}this.clearTimer();var n=r[this.trackId];this.log("Now switching to audio-track index "+t);var a=r[t];var s=a.id,o=a.groupId,l=o===void 0?"":o,u=a.name,f=a.type,d=a.url;this.trackId=t;this.trackName=u;this.selectDefaultTrack=false;this.hls.trigger(i["Events"].AUDIO_TRACK_SWITCHING,{id:s,groupId:l,name:u,type:f,url:d});if(a.details&&!a.details.live){return}var c=this.switchParams(a.url,n===null||n===void 0?void 0:n.details);this.loadPlaylist(c)};r.selectInitialTrack=function e(){var t=this.tracksInGroup;console.assert(t.length,"Initial audio track should be selected when tracks are known");var r=this.trackName;var a=this.findTrackId(r)||this.findTrackId();if(a!==-1){this.setAudioTrack(a)}else{this.warn("No track found for running audio group-ID: "+this.groupId);this.hls.trigger(i["Events"].ERROR,{type:n["ErrorTypes"].MEDIA_ERROR,details:n["ErrorDetails"].AUDIO_TRACK_LOAD_ERROR,fatal:true})}};r.findTrackId=function e(t){var r=this.tracksInGroup;for(var i=0;i<r.length;i++){var n=r[i];if(!this.selectDefaultTrack||n.default){if(!t||t===n.name){return n.id}}}return-1};r.loadPlaylist=function e(t){var r=this.tracksInGroup[this.trackId];if(this.shouldLoadTrack(r)){var n=r.id;var a=r.groupId;var s=r.url;if(t){try{s=t.addDirectives(s)}catch(e){this.warn("Could not construct new