(window.webpackJsonp=window.webpackJsonp||[]).push([[96],{443:function(e,t,n){"use strict";Object.defineProperty(t,"__esModule",{value:!0});var r=function(){function e(e,t){for(var i=0;i<t.length;i++){var n=t[i];n.enumerable=n.enumerable||!1,n.configurable=!0,"value"in n&&(n.writable=!0),Object.defineProperty(e,n.key,n)}}return function(t,n,r){return n&&e(t.prototype,n),r&&e(t,r),t}}();function o(e){return e&&e.__esModule?e:{default:e}}var d=o(n(140)),h=o(n(48)),l=o(n(869)),m=o(n(206)),f=o(n(0)),c=o(n(204)),_=n(167),y=n(870),v=n(294),T=n(444),S=function(e,t,n){if(!e||!t)return!1;var r=n===e.segments.length;return e.endList&&"open"===t.readyState&&r},I=function(e){return"number"==typeof e&&isFinite(e)},k=function(e,t,n){return"main"===e&&t&&n?n.containsAudio||n.containsVideo?t.containsVideo&&!n.containsVideo?"Only audio found in segment when we expected video. We can't switch to audio only from a stream that had video. To get rid of this message, please add codec information to the manifest.":!t.containsVideo&&n.containsVideo?"Video found in segment when we expected only audio. We can't switch to a stream with video from an audio only stream. To get rid of this message, please add codec information to the manifest.":null:"Neither audio nor video found in segment.":null};t.illegalMediaSwitch=k;var B=function(e,t,n){var r=void 0;return r=e.length&&e.start(0)>0&&e.start(0)<t?e.start(0):t-30,Math.min(r,t-n)};t.safeBackBufferTrimTime=B;var R=function(e){function t(e){var n=this,r=arguments.length<=1||void 0===arguments[1]?{}:arguments[1];if(function(e,t){if(!(e instanceof t))throw new TypeError("Cannot call a class as a function")}(this,t),function(e,t,n){for(var r=!0;r;){var object=e,o=t,d=n;r=!1,null===object&&(object=Function.prototype);var desc=Object.getOwnPropertyDescriptor(object,o);if(void 0!==desc){if("value"in desc)return desc.value;var h=desc.get;if(void 0===h)return;return h.call(d)}var l=Object.getPrototypeOf(object);if(null===l)return;e=l,t=o,n=d,r=!0,desc=l=void 0}}(Object.getPrototypeOf(t.prototype),"constructor",this).call(this),!e)throw new TypeError("Initialization settings are required");if("function"!=typeof e.currentTime)throw new TypeError("No currentTime getter specified");if(!e.mediaSource)throw new TypeError("No MediaSource specified");this.state="INIT",this.bandwidth=e.bandwidth,this.throughput={rate:0,count:0},this.roundTrip=NaN,this.resetStats_(),this.mediaIndex=null,this.hasPlayed_=e.hasPlayed,this.currentTime_=e.currentTime,this.seekable_=e.seekable,this.seeking_=e.seeking,this.duration_=e.duration,this.mediaSource_=e.mediaSource,this.hls_=e.hls,this.loaderType_=e.loaderType,this.startingMedia_=void 0,this.segmentMetadataTrack_=e.segmentMetadataTrack,this.goalBufferLength_=e.goalBufferLength,this.checkBufferTimeout_=null,this.error_=void 0,this.currentTimeline_=-1,this.pendingSegment_=null,this.mimeType_=null,this.sourceUpdater_=null,this.xhrOptions_=null,this.activeInitSegmentId_=null,this.initSegments_={},this.decrypter_=e.decrypter,this.syncController_=e.syncController,this.syncPoint_={segmentIndex:0,time:0},this.syncController_.on("syncinfoupdate",function(){return n.trigger("syncinfoupdate")}),this.mediaSource_.addEventListener("sourceopen",function(){return n.ended_=!1}),this.fetchAtBuffer_=!1,r.debug&&(this.logger_=h.default.log.bind(h.default,"segment-loader",this.loaderType_,"->"))}return function(e,t){if("function"!=typeof t&&null!==t)throw new TypeError("Super expression must either be null or a function, not "+typeof t);e.prototype=Object.create(t&&t.prototype,{constructor:{value:e,enumerable:!1,writable:!0,configurable:!0}}),t&&(Object.setPrototypeOf?Object.setPrototypeOf(e,t):e.__proto__=t)}(t,e),r(t,[{key:"resetStats_",value:function(){this.mediaBytesTransferred=0,this.mediaRequests=0,this.mediaRequestsAborted=0,this.mediaRequestsTimedout=0,this.mediaRequestsErrored=0,this.mediaTransferDuration=0,this.mediaSecondsLoaded=0}},{key:"dispose",value:function(){this.state="DISPOSED",this.pause(),this.abort_(),this.sourceUpdater_&&this.sourceUpdater_.dispose(),this.resetStats_()}},{key:"abort",value:function(){"WAITING"===this.state?(this.abort_(),this.state="READY",this.paused()||this.monitorBuffer_()):this.pendingSegment_&&(this.pendingSegment_=null)}},{key:"abort_",value:function(){this.pendingSegment_&&this.pendingSegment_.abortRequests(),this.pendingSegment_=null}},{key:"error",value:function(e){return void 0!==e&&(this.error_=e),this.pendingSegment_=null,this.error_}},{key:"endOfStream",value:function(){this.ended_=!0,this.pause(),this.trigger("ended")}},{key:"buffered_",value:function(){return this.sourceUpdater_?this.sourceUpdater_.buffered():h.default.createTimeRanges()}},{key:"initSegment",value:function(map){var e=!(arguments.length<=1||void 0===arguments[1])&&arguments[1];if(!map)return null;var t=(0,_.initSegmentId)(map),n=this.initSegments_[t];return e&&!n&&map.bytes&&(this.initSegments_[t]=n={resolvedUri:map.resolvedUri,byterange:map.byterange,bytes:map.bytes}),n||map}},{key:"couldBeginLoading_",value:function(){return this.playlist_&&(this.sourceUpdater_||this.mimeType_&&"INIT"===this.state)&&!this.paused()}},{key:"load",value:function(){if(this.monitorBuffer_(),this.playlist_){if(this.syncController_.setDateTimeMapping(this.playlist_),"INIT"===this.state&&this.couldBeginLoading_())return this.init_();!this.couldBeginLoading_()||"READY"!==this.state&&"INIT"!==this.state||(this.state="READY")}}},{key:"init_",value:function(){return this.state="READY",this.sourceUpdater_=new l.default(this.mediaSource_,this.mimeType_),this.resetEverything(),this.monitorBuffer_()}},{key:"playlist",value:function(e){var t=arguments.length<=1||void 0===arguments[1]?{}:arguments[1];if(e){var n=this.playlist_,r=this.pendingSegment_;if(this.playlist_=e,this.xhrOptions_=t,this.hasPlayed_()||(e.syncInfo={mediaSequence:e.mediaSequence,time:0}),this.trigger("syncinfoupdate"),"INIT"===this.state&&this.couldBeginLoading_())return this.init_();if(n&&n.uri===e.uri){var o=e.mediaSequence-n.mediaSequence;this.logger_("mediaSequenceDiff",o),null!==this.mediaIndex&&(this.mediaIndex-=o),r&&(r.mediaIndex-=o,r.mediaIndex>=0&&(r.segment=e.segments[r.mediaIndex])),this.syncController_.saveExpiredSegmentInfo(n,e)}else null!==this.mediaIndex&&this.resyncLoader()}}},{key:"pause",value:function(){this.checkBufferTimeout_&&(f.default.clearTimeout(this.checkBufferTimeout_),this.checkBufferTimeout_=null)}},{key:"paused",value:function(){return null===this.checkBufferTimeout_}},{key:"mimeType",value:function(e){this.mimeType_||(this.mimeType_=e,"INIT"===this.state&&this.couldBeginLoading_()&&this.init_())}},{key:"resetEverything",value:function(){this.ended_=!1,this.resetLoader(),this.remove(0,this.duration_()),this.trigger("reseteverything")}},{key:"resetLoader",value:function(){this.fetchAtBuffer_=!1,this.resyncLoader()}},{key:"resyncLoader",value:function(){this.mediaIndex=null,this.syncPoint_=null,this.abort()}},{key:"remove",value:function(e,t){this.sourceUpdater_&&this.sourceUpdater_.remove(e,t),(0,c.default)(e,t,this.segmentMetadataTrack_)}},{key:"monitorBuffer_",value:function(){this.checkBufferTimeout_&&f.default.clearTimeout(this.checkBufferTimeout_),this.checkBufferTimeout_=f.default.setTimeout(this.monitorBufferTick_.bind(this),1)}},{key:"monitorBufferTick_",value:function(){"READY"===this.state&&this.fillBuffer_(),this.checkBufferTimeout_&&f.default.clearTimeout(this.checkBufferTimeout_),this.checkBufferTimeout_=f.default.setTimeout(this.monitorBufferTick_.bind(this),500)}},{key:"fillBuffer_",value:function(){if(!this.sourceUpdater_.updating()){this.syncPoint_||(this.syncPoint_=this.syncController_.getSyncPoint(this.playlist_,this.duration_(),this.currentTimeline_,this.currentTime_()));var e=this.checkBuffer_(this.buffered_(),this.playlist_,this.mediaIndex,this.hasPlayed_(),this.currentTime_(),this.syncPoint_);if(e)S(this.playlist_,this.mediaSource_,e.mediaIndex)?this.endOfStream():(e.mediaIndex!==this.playlist_.segments.length-1||"ended"!==this.mediaSource_.readyState||this.seeking_())&&((e.timeline!==this.currentTimeline_||null!==e.startOfSegment&&e.startOfSegment<this.sourceUpdater_.timestampOffset())&&(this.syncController_.reset(),e.timestampOffset=e.startOfSegment),this.loadSegment_(e))}}},{key:"checkBuffer_",value:function(e,t,n,r,o,h){var l=0,m=void 0;e.length&&(l=e.end(e.length-1));var f,c=Math.max(0,l-o);if(!t.segments.length)return null;if(c>=this.goalBufferLength_())return null;if(!r&&c>=1)return null;if(this.logger_("checkBuffer_","mediaIndex:",n,"hasPlayed:",r,"currentTime:",o,"syncPoint:",h,"fetchAtBuffer:",this.fetchAtBuffer_,"bufferedTime:",c),null===h)return n=this.getSyncSegmentCandidate_(t),this.logger_("getSync","mediaIndex:",n),this.generateSegmentInfo_(t,n,null,!0);if(null!==n){this.logger_("walkForward","mediaIndex:",n+1);var _=t.segments[n];return m=_&&_.end?_.end:l,this.generateSegmentInfo_(t,n+1,m,!1)}this.fetchAtBuffer_?(n=(f=d.default.getMediaInfoForTime(t,l,h.segmentIndex,h.time)).mediaIndex,m=f.startTime):(n=(f=d.default.getMediaInfoForTime(t,o,h.segmentIndex,h.time)).mediaIndex,m=f.startTime);return this.logger_("getMediaIndexForTime","mediaIndex:",n,"startOfSegment:",m),this.generateSegmentInfo_(t,n,m,!1)}},{key:"getSyncSegmentCandidate_",value:function(e){var t=this;if(-1===this.currentTimeline_)return 0;var n=e.segments.map(function(s,i){return{timeline:s.timeline,segmentIndex:i}}).filter(function(s){return s.timeline===t.currentTimeline_});return n.length?n[Math.min(n.length-1,1)].segmentIndex:Math.max(e.segments.length-1,0)}},{key:"generateSegmentInfo_",value:function(e,t,n,r){if(t<0||t>=e.segments.length)return null;var o=e.segments[t];return{requestId:"segment-loader-"+Math.random(),uri:o.resolvedUri,mediaIndex:t,isSyncRequest:r,startOfSegment:n,playlist:e,bytes:null,encryptedBytes:null,timestampOffset:null,timeline:o.timeline,duration:o.duration,segment:o}}},{key:"abortRequestEarly_",value:function(e){if(this.hls_.tech_.paused()||!this.xhrOptions_.timeout||!this.playlist_.attributes.BANDWIDTH)return!1;if(Date.now()-(e.firstBytesReceivedAt||Date.now())<1e3)return!1;var t=this.currentTime_(),n=e.bandwidth,r=this.pendingSegment_.duration,o=d.default.estimateSegmentRequestTime(r,n,this.playlist_,e.bytesReceived),h=(0,v.timeUntilRebuffer)(this.buffered_(),t,this.hls_.tech_.playbackRate())-1;if(o<=h)return!1;var l=(0,T.minRebufferMaxBandwidthSelector)({master:this.hls_.playlists.master,currentTime:t,bandwidth:n,duration:this.duration_(),segmentDuration:r,timeUntilRebuffer:h,currentTimeline:this.currentTimeline_,syncController:this.syncController_});if(l){var f=o-h-l.rebufferingImpact,c=.5;return h<=v.TIME_FUDGE_FACTOR&&(c=1),!l.playlist||l.playlist.uri===this.playlist_.uri||f<c?!1:(this.bandwidth=l.playlist.attributes.BANDWIDTH*m.default.BANDWIDTH_VARIANCE+1,this.abort(),this.trigger("earlyabort"),!0)}}},{key:"handleProgress_",value:function(e,t){this.pendingSegment_&&t.requestId===this.pendingSegment_.requestId&&!this.abortRequestEarly_(t.stats)&&this.trigger("progress")}},{key:"loadSegment_",value:function(e){this.state="WAITING",this.pendingSegment_=e,this.trimBackBuffer_(e),e.abortRequests=(0,y.mediaSegmentRequest)(this.hls_.xhr,this.xhrOptions_,this.decrypter_,this.createSimplifiedSegmentObj_(e),this.handleProgress_.bind(this),this.segmentRequestFinished_.bind(this))}},{key:"trimBackBuffer_",value:function(e){var t=B(this.seekable_(),this.currentTime_(),this.playlist_.targetDuration||10);t>0&&this.remove(0,t)}},{key:"createSimplifiedSegmentObj_",value:function(e){var t=e.segment,n={resolvedUri:t.resolvedUri,byterange:t.byterange,requestId:e.requestId};if(t.key){var r=t.key.iv||new Uint32Array([0,0,0,e.mediaIndex+e.playlist.mediaSequence]);n.key={resolvedUri:t.key.resolvedUri,iv:r}}return t.map&&(n.map=this.initSegment(t.map)),n}},{key:"segmentRequestFinished_",value:function(e,t){if(this.mediaRequests+=1,t.stats&&(this.mediaBytesTransferred+=t.stats.bytesReceived,this.mediaTransferDuration+=t.stats.roundTripTime),this.pendingSegment_){if(t.requestId===this.pendingSegment_.requestId){if(e)return this.pendingSegment_=null,this.state="READY",e.code===y.REQUEST_ERRORS.ABORTED?void(this.mediaRequestsAborted+=1):(this.pause(),e.code===y.REQUEST_ERRORS.TIMEOUT?(this.mediaRequestsTimedout+=1,this.bandwidth=1,this.roundTrip=NaN,void this.trigger("bandwidthupdate")):(this.mediaRequestsErrored+=1,this.error(e),void this.trigger("error")));this.bandwidth=t.stats.bandwidth,this.roundTrip=t.stats.roundTripTime,t.map&&(t.map=this.initSegment(t.map,!0)),this.processSegmentResponse_(t)}}else this.mediaRequestsAborted+=1}},{key:"processSegmentResponse_",value:function(e){var t=this.pendingSegment_;t.bytes=e.bytes,e.map&&(t.segment.map.bytes=e.map.bytes),t.endOfAllRequests=e.endOfAllRequests,this.handleSegment_()}},{key:"handleSegment_",value:function(){var e=this;if(this.pendingSegment_){var t=this.pendingSegment_,n=t.segment,r=this.syncController_.probeSegmentInfo(t);void 0===this.startingMedia_&&r&&(r.containsAudio||r.containsVideo)&&(this.startingMedia_={containsAudio:r.containsAudio,containsVideo:r.containsVideo});var o=k(this.loaderType_,this.startingMedia_,r);if(o)return this.error({message:o,blacklistDuration:1/0}),void this.trigger("error");if(t.isSyncRequest)return this.trigger("syncinfoupdate"),this.pendingSegment_=null,void(this.state="READY");null!==t.timestampOffset&&t.timestampOffset!==this.sourceUpdater_.timestampOffset()&&(this.sourceUpdater_.timestampOffset(t.timestampOffset),this.trigger("timestampoffset"));var d=this.syncController_.mappingForTimeline(t.timeline);null!==d&&this.trigger({type:"segmenttimemapping",mapping:d}),this.state="APPENDING",n.map&&function(){var t=(0,_.initSegmentId)(n.map);if(!e.activeInitSegmentId_||e.activeInitSegmentId_!==t){var r=e.initSegment(n.map);e.sourceUpdater_.appendBuffer(r.bytes,function(){e.activeInitSegmentId_=t})}}(),t.byteLength=t.bytes.byteLength,"number"==typeof n.start&&"number"==typeof n.end?this.mediaSecondsLoaded+=n.end-n.start:this.mediaSecondsLoaded+=n.duration,this.sourceUpdater_.appendBuffer(t.bytes,this.handleUpdateEnd_.bind(this))}else this.state="READY"}},{key:"handleUpdateEnd_",value:function(){if(this.logger_("handleUpdateEnd_","segmentInfo:",this.pendingSegment_),!this.pendingSegment_)return this.state="READY",void(this.paused()||this.monitorBuffer_());var e=this.pendingSegment_,t=e.segment,n=null!==this.mediaIndex;(this.pendingSegment_=null,this.recordThroughput_(e),this.addSegmentMetadataCue_(e),this.state="READY",this.mediaIndex=e.mediaIndex,this.fetchAtBuffer_=!0,this.currentTimeline_=e.timeline,this.trigger("syncinfoupdate"),t.end&&this.currentTime_()-t.end>3*e.playlist.targetDuration)?this.resetEverything():(n&&this.trigger("bandwidthupdate"),this.trigger("progress"),S(e.playlist,this.mediaSource_,e.mediaIndex+1)&&this.endOfStream(),this.paused()||this.monitorBuffer_())}},{key:"recordThroughput_",value:function(e){var t=this.throughput.rate,n=Date.now()-e.endOfAllRequests+1,r=Math.floor(e.byteLength/n*8*1e3);this.throughput.rate+=(r-t)/++this.throughput.count}},{key:"logger_",value:function(){}},{key:"addSegmentMetadataCue_",value:function(e){if(this.segmentMetadataTrack_){var t=e.segment,n=t.start,r=t.end;if(I(n)&&I(r)){(0,c.default)(n,r,this.segmentMetadataTrack_);var o=f.default.WebKitDataCue||f.default.VTTCue,d={bandwidth:e.playlist.attributes.BANDWIDTH,resolution:e.playlist.attributes.RESOLUTION,codecs:e.playlist.attributes.CODECS,byteLength:e.byteLength,uri:e.uri,timeline:e.timeline,playlist:e.playlist.uri,start:n,end:r},h=new o(n,r,JSON.stringify(d));h.value=d,this.segmentMetadataTrack_.addCue(h)}}}}]),t}(h.default.EventTarget);t.default=R}}]);