2017-04-05 10:16:44 -07:00
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define(["browser"],function(browser){"use strict";function canPlayH264(){var v=document.createElement("video");return!(!v.canPlayType||!v.canPlayType('video/mp4; codecs="avc1.42E01E, mp4a.40.2"').replace(/no/,""))}function canPlayH265(){return!(!browser.tizen&&!browser.orsay)}function supportsTextTracks(){return!(!browser.tizen&&!browser.orsay)||(null==_supportsTextTracks&&(_supportsTextTracks=null!=document.createElement("video").textTracks),_supportsTextTracks)}function canPlayHls(src){return null==_canPlayHls&&(_canPlayHls=canPlayNativeHls()||canPlayHlsWithMSE()),_canPlayHls}function canPlayNativeHls(){if(browser.tizen||browser.orsay)return!0;var media=document.createElement("video");return!(!media.canPlayType("application/x-mpegURL").replace(/no/,"")&&!media.canPlayType("application/vnd.apple.mpegURL").replace(/no/,""))}function canPlayHlsWithMSE(){return null!=window.MediaSource}function canPlayAudioFormat(format){var typeString;if("flac"===format){if(browser.tizen||browser.orsay)return!0;if(browser.edgeUwp)return!0}else if("wma"===format){if(browser.tizen||browser.orsay)return!0;if(browser.edgeUwp)return!0}else if("opus"===format)return typeString='audio/ogg; codecs="opus"',!!document.createElement("audio").canPlayType(typeString).replace(/no/,"");return typeString="webma"===format?"audio/webm":"audio/"+format,!!document.createElement("audio").canPlayType(typeString).replace(/no/,"")}function testCanPlayMkv(videoTestElement){if(browser.tizen||browser.orsay)return!0;if(videoTestElement.canPlayType("video/x-matroska")||videoTestElement.canPlayType("video/mkv"))return!0;var userAgent=navigator.userAgent.toLowerCase();return browser.chrome?!browser.operaTv&&(userAgent.indexOf("vivaldi")===-1&&userAgent.indexOf("opera")===-1):!!browser.edgeUwp}function testCanPlayTs(){return browser.tizen||browser.orsay||browser.web0s||browser.edgeUwp}function supportsMpeg2Video(){return browser.orsay||browser.tizen||browser.edgeUwp}function supportsVc1(){return browser.orsay||browser.tizen||browser.edgeUwp}function getDirectPlayProfileForVideoContainer(container,videoAudioCodecs){var supported=!1,profileContainer=container,videoCodecs=[];switch(container){case"asf":supported=browser.tizen||browser.orsay||browser.edgeUwp,videoAudioCodecs=[];break;case"avi":supported=browser.tizen||browser.orsay||browser.edgeUwp;break;case"mpg":case"mpeg":supported=browser.edgeUwp||browser.tizen||browser.orsay;break;case"3gp":case"flv":case"mts":case"trp":case"vob":case"vro":supported=browser.tizen||browser.orsay;break;case"mov":supported=browser.tizen||browser.orsay||browser.chrome||browser.edgeUwp,videoCodecs.push("h264");break;case"m2ts":supported=browser.tizen||browser.orsay||browser.web0s||browser.edgeUwp,videoCodecs.push("h264"),supportsVc1()&&videoCodecs.push("vc1"),supportsMpeg2Video()&&videoCodecs.push("mpeg2video");break;case"wmv":supported=browser.tizen||browser.orsay||browser.web0s||browser.edgeUwp,videoAudioCodecs=[];break;case"ts":supported=testCanPlayTs(),videoCodecs.push("h264"),canPlayH265()&&(videoCodecs.push("h265"),videoCodecs.push("hevc")),supportsVc1()&&videoCodecs.push("vc1"),supportsMpeg2Video()&&videoCodecs.push("mpeg2video"),profileContainer="ts,mpegts"}return supported?{Container:profileContainer,Type:"Video",VideoCodec:videoCodecs.join(","),AudioCodec:videoAudioCodecs.join(",")}:null}function getMaxBitrate(){return 12e7}var _supportsTextTracks,_canPlayHls;return function(options){options=options||{};var physicalAudioChannels=options.audioChannels||(browser.mobile?2:6),bitrateSetting=getMaxBitrate(),videoTestElement=document.createElement("video"),canPlayWebm=videoTestElement.canPlayType("video/webm").replace(/no/,""),canPlayMkv=testCanPlayMkv(videoTestElement),profile={};profile.MaxStreamingBitrate=bitrateSetting,profile.MaxStaticBitrate=1e8,profile.MusicStreamingTranscodingBitrate=Math.min(bitrateSetting,192e3),profile.DirectPlayProfiles=[];var videoAudioCodecs=[],hlsVideoAudioCodecs=[],supportsMp3VideoAudio=videoTestElement.canPlayType('video/mp4; codecs="avc1.640029, mp4a.69"').replace(/no/,"")||videoTestElement.canPlayTyp
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