jsmpeg，里面包含 jsmpeg 和websocket-relay

var JSMpeg={Player:null,VideoElement:null,BitBuffer:null,Source:{},Demuxer:{},Decoder:{},Renderer:{},AudioOutput:{},Now:function(){return window.performance?window.performance.now()/1e3:Date.now()/1e3},CreateVideoElements:function(){var elements=document.querySelectorAll(".jsmpeg");for(var i=0;i<elements.length;i++){new JSMpeg.VideoElement(elements[i])}},Fill:function(array,value){if(array.fill){array.fill(value)}else{for(var i=0;i<array.length;i++){array[i]=value}}},Base64ToArrayBuffer:function(base64){var binary=window.atob(base64);var length=binary.length;var bytes=new Uint8Array(length);for(var i=0;i<length;i++){bytes[i]=binary.charCodeAt(i)}return bytes.buffer},WASM_BINARY_INLINED:null};if(document.readyState==="complete"){JSMpeg.CreateVideoElements()}else{document.addEventListener("DOMContentLoaded",JSMpeg.CreateVideoElements)}JSMpeg.VideoElement=function(){"use strict";var VideoElement=function(element){var url=element.dataset.url;if(!url){throw"VideoElement has no `data-url` attribute"}var addStyles=function(element,styles){for(var name in styles){element.style[name]=styles[name]}};this.container=element;addStyles(this.container,{display:"inline-block",position:"relative",minWidth:"80px",minHeight:"80px"});this.canvas=document.createElement("canvas");this.canvas.width=960;this.canvas.height=540;addStyles(this.canvas,{display:"block",width:"100%"});this.container.appendChild(this.canvas);this.playButton=document.createElement("div");this.playButton.innerHTML=VideoElement.PLAY_BUTTON;addStyles(this.playButton,{zIndex:2,position:"absolute",top:"0",bottom:"0",left:"0",right:"0",maxWidth:"75px",maxHeight:"75px",margin:"auto",opacity:"0.7",cursor:"pointer"});this.container.appendChild(this.playButton);var options={canvas:this.canvas};for(var option in element.dataset){try{options[option]=JSON.parse(element.dataset[option])}catch(err){options[option]=element.dataset[option]}}this.player=new JSMpeg.Player(url,options);element.playerInstance=this.player;if(options.poster&&!options.autoplay&&!this.player.options.streaming){options.decodeFirstFrame=false;this.poster=new Image;this.poster.src=options.poster;this.poster.addEventListener("load",this.posterLoaded);addStyles(this.poster,{display:"block",zIndex:1,position:"absolute",top:0,left:0,bottom:0,right:0});this.container.appendChild(this.poster)}if(!this.player.options.streaming){this.container.addEventListener("click",this.onClick.bind(this))}if(options.autoplay||this.player.options.streaming){this.playButton.style.display="none"}if(this.player.audioOut&&!this.player.audioOut.unlocked){var unlockAudioElement=this.container;if(options.autoplay||this.player.options.streaming){this.unmuteButton=document.createElement("div");this.unmuteButton.innerHTML=VideoElement.UNMUTE_BUTTON;addStyles(this.unmuteButton,{zIndex:2,position:"absolute",bottom:"10px",right:"20px",width:"75px",height:"75px",margin:"auto",opacity:"0.7",cursor:"pointer"});this.container.appendChild(this.unmuteButton);unlockAudioElement=this.unmuteButton}this.unlockAudioBound=this.onUnlockAudio.bind(this,unlockAudioElement);unlockAudioElement.addEventListener("touchstart",this.unlockAudioBound,false);unlockAudioElement.addEventListener("click",this.unlockAudioBound,true)}};VideoElement.prototype.onUnlockAudio=function(element,ev){if(this.unmuteButton){ev.preventDefault();ev.stopPropagation()}this.player.audioOut.unlock(function(){if(this.unmuteButton){this.unmuteButton.style.display="none"}element.removeEventListener("touchstart",this.unlockAudioBound);element.removeEventListener("click",this.unlockAudioBound)}.bind(this))};VideoElement.prototype.onClick=function(ev){if(this.player.isPlaying){this.player.pause();this.playButton.style.display="block"}else{this.player.play();this.playButton.style.display="none";if(this.poster){this.poster.style.display="none"}}};VideoElement.PLAY_BUTTON='<svg style="max-width: 75px; max-height: 75px;" '+'viewBox="0 0 200 200" alt="Play video">'+'<circle cx="100" cy="100" r="90" fill="none" '+'stroke-width="15" stroke="#fff"/>'+'<polygon points="70, 55 70, 145 145, 100" fill="#fff"/>'+"</svg>";VideoElement.UNMUTE_BUTTON='<svg style="max-width: 75px; max-height: 75px;" viewBox="0 0 75 75">'+'<polygon class="audio-speaker" stroke="none" fill="#fff" '+'points="39,13 22,28 6,28 6,47 21,47 39,62 39,13"/>'+'<g stroke="#fff" stroke-width="5">'+'<path d="M 49,50 69,26"/>'+'<path d="M 69,50 49,26"/>'+"</g>"+"</svg>";return VideoElement}();JSMpeg.Player=function(){"use strict";var Player=function(url,options){this.options=options||{};if(options.source){this.source=new options.source(url,options);options.streaming=!!this.source.streaming}else if(url.match(/^wss?:\/\//)){this.source=new JSMpeg.Source.WebSocket(url,options);options.streaming=true}else if(options.progressive!==false){this.source=new JSMpeg.Source.AjaxProgressive(url,options);options.streaming=false}else{this.source=new JSMpeg.Source.Ajax(url,options);options.streaming=false}this.maxAudioLag=options.maxAudioLag||.25;this.loop=options.loop!==false;this.autoplay=!!options.autoplay||options.streaming;this.demuxer=new JSMpeg.Demuxer.TS(options);this.source.connect(this.demuxer);if(!options.disableWebAssembly&&JSMpeg.WASMModule.IsSupported()){this.wasmModule=JSMpeg.WASMModule.GetModule();options.wasmModule=this.wasmModule}if(options.video!==false){this.video=options.wasmModule?new JSMpeg.Decoder.MPEG1VideoWASM(options):new JSMpeg.Decoder.MPEG1Video(options);this.renderer=!options.disableGl&&JSMpeg.Renderer.WebGL.IsSupported()?new JSMpeg.Renderer.WebGL(options):new JSMpeg.Renderer.Canvas2D(options);this.demuxer.connect(JSMpeg.Demuxer.TS.STREAM.VIDEO_1,this.video);this.video.connect(this.renderer)}if(options.audio!==false&&JSMpeg.AudioOutput.WebAudio.IsSupported()){this.audio=options.wasmModule?new JSMpeg.Decoder.MP2AudioWASM(options):new JSMpeg.Decoder.MP2Audio(options);this.audioOut=new JSMpeg.AudioOutput.WebAudio(options);this.demuxer.connect(JSMpeg.Demuxer.TS.STREAM.AUDIO_1,this.audio);this.audio.connect(this.audioOut)}Object.defineProperty(this,"currentTime",{get:this.getCurrentTime,set:this.setCurrentTime});Object.defineProperty(this,"volume",{get:this.getVolume,set:this.setVolume});this.paused=true;this.unpauseOnShow=false;if(options.pauseWhenHidden!==false){document.addEventListener("visibilitychange",this.showHide.bind(this))}if(this.wasmModule){if(this.wasmModule.ready){this.startLoading()}else if(JSMpeg.WASM_BINARY_INLINED){var wasm=JSMpeg.Base64ToArrayBuffer(JSMpeg.WASM_BINARY_INLINED);this.wasmModule.loadFromBuffer(wasm,this.startLoading.bind(this))}else{this.wasmModule.loadFromFile("jsmpeg.wasm",this.startLoading.bind(this))}}else{this.startLoading()}};Player.prototype.startLoading=function(){this.source.start();if(this.autoplay){this.play()}};Player.prototype.showHide=function(ev){if(document.visibilityState==="hidden"){this.unpauseOnShow=this.wantsToPlay;this.pause()}else if(this.unpauseOnShow){this.play()}};Player.prototype.play=function(ev){if(this.animationId){return}this.animationId=requestAnimationFrame(this.update.bind(this));this.wantsToPlay=true;this.paused=false};Player.prototype.pause=function(ev){if(this.paused){return}cancelAnimationFrame(this.animationId);this.animationId=null;this.wantsToPlay=false;this.isPlaying=false;this.paused=true;if(this.audio&&this.audio.canPlay){this.audioOut.stop();this.seek(this.currentTime)}if(this.options.onPause){this.options.onPause(this)}};Player.prototype.getVolume=function(){return this.audioOut?this.audioOut.volume:0};Player.prototype.setVolume=function(volume){if(this.audioOut){this.audioOut.volume=volume}};Player.prototype.stop=function(ev){this.pause();this.seek(0);if(this.video&&this.options.decodeFirstFrame!==false){this.video.decode()}};Player.prototype.destroy=function(){this.pause();this.source.destroy();this.video&&this.video.destroy();this.renderer&&this.renderer.destroy();this.audio&&this.audio.destroy();this.audioOut&&this.audioOut.destroy()};Player.prototype.seek=function(time){var startOf