mirror of
https://github.com/zhw2590582/ArtPlayer.git
synced 2026-10-08 19:06:15 -08:00
Harvey Zhao
1e60637b74
- Removed the assignment of Artplayer to the global window object in index.js of the artplayer package. - Eliminated the window export for the template plugin in index.js, streamlining the code and reducing global scope pollution.
8 lines
16 KiB
JavaScript
8 lines
16 KiB
JavaScript
/*!
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* artplayer-plugin-jassub.js v1.0.1
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* Github: https://github.com/zhw2590582/ArtPlayer
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* (c) 2017-2026 Harvey Zhao
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* Released under the MIT License.
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*/
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var e=Object.defineProperty,t=(t,s,i)=>((t,s,i)=>s in t?e(t,s,{enumerable:!0,configurable:!0,writable:!0,value:i}):t[s]=i)(t,"symbol"!==typeof s?s+"":s,i);typeof HTMLVideoElement<"u"&&!("requestVideoFrameCallback"in HTMLVideoElement.prototype)&&"getVideoPlaybackQuality"in HTMLVideoElement.prototype&&(HTMLVideoElement.prototype._rvfcpolyfillmap={},HTMLVideoElement.prototype.requestVideoFrameCallback=function(e){const t=performance.now(),s=this.getVideoPlaybackQuality(),i=this.mozPresentedFrames||this.mozPaintedFrames||s.totalVideoFrames-s.droppedVideoFrames,a=(r,n)=>{const o=this.getVideoPlaybackQuality(),h=this.mozPresentedFrames||this.mozPaintedFrames||o.totalVideoFrames-o.droppedVideoFrames;if(h>i){const i=this.mozFrameDelay||o.totalFrameDelay-s.totalFrameDelay||0,a=n-r;e(n,{presentationTime:n+1e3*i,expectedDisplayTime:n+a,width:this.videoWidth,height:this.videoHeight,mediaTime:Math.max(0,this.currentTime||0)+a/1e3,presentedFrames:h,processingDuration:i}),delete this._rvfcpolyfillmap[t]}else this._rvfcpolyfillmap[t]=requestAnimationFrame(e=>a(n,e))};return this._rvfcpolyfillmap[t]=requestAnimationFrame(e=>a(t,e)),t},HTMLVideoElement.prototype.cancelVideoFrameCallback=function(e){cancelAnimationFrame(this._rvfcpolyfillmap[e]),delete this._rvfcpolyfillmap[e]});const s={bt709:"BT709",bt470bg:"BT601",smpte170m:"BT601"},i={BT601:{BT709:"1.0863 -0.0723 -0.014 0 0 0.0965 0.8451 0.0584 0 0 -0.0141 -0.0277 1.0418"},BT709:{BT601:"0.9137 0.0784 0.0079 0 0 -0.1049 1.1722 -0.0671 0 0 0.0096 0.0322 0.9582"},FCC:{BT709:"1.0873 -0.0736 -0.0137 0 0 0.0974 0.8494 0.0531 0 0 -0.0127 -0.0251 1.0378",BT601:"1.001 -0.0008 -0.0002 0 0 0.0009 1.005 -0.006 0 0 0.0013 0.0027 0.996"},SMPTE240M:{BT709:"0.9993 0.0006 0.0001 0 0 -0.0004 0.9812 0.0192 0 0 -0.0034 -0.0114 1.0148",BT601:"0.913 0.0774 0.0096 0 0 -0.1051 1.1508 -0.0456 0 0 0.0063 0.0207 0.973"}},a=class e extends EventTarget{constructor(t){if(super(),!globalThis.Worker)throw this.destroy("Worker not supported");if(!t)throw this.destroy("No options provided");this._loaded=new Promise(e=>{this._init=e});const s=e._test();if(this._onDemandRender="requestVideoFrameCallback"in HTMLVideoElement.prototype&&(t.onDemandRender??!0),this._offscreenRender="transferControlToOffscreen"in HTMLCanvasElement.prototype&&!t.canvas&&(t.offscreenRender??!0),this.timeOffset=t.timeOffset||0,this._video=t.video,this._videoHeight=0,this._videoWidth=0,this._videoColorSpace=null,this._canvas=t.canvas,this._video&&!this._canvas)this._canvasParent=document.createElement("div"),this._canvasParent.className="JASSUB",this._canvasParent.style.position="relative",this._canvas=this._createCanvas(),this._video.insertAdjacentElement("afterend",this._canvasParent);else if(!this._canvas)throw this.destroy("Don't know where to render: you should give video or canvas in options.");if(this._bufferCanvas=document.createElement("canvas"),this._bufferCtx=this._bufferCanvas.getContext("2d"),!this._bufferCtx)throw this.destroy("Canvas rendering not supported");this._canvasctrl=this._offscreenRender?this._canvas.transferControlToOffscreen():this._canvas,this._ctx=!this._offscreenRender&&this._canvasctrl.getContext("2d"),this._lastRenderTime=0,this.debug=!!t.debug,this.prescaleFactor=t.prescaleFactor||1,this.prescaleHeightLimit=t.prescaleHeightLimit||1080,this.maxRenderHeight=t.maxRenderHeight||0,this._boundResize=this.resize.bind(this),this._boundTimeUpdate=this._timeupdate.bind(this),this._boundSetRate=this.setRate.bind(this),this._boundUpdateColorSpace=this._updateColorSpace.bind(this),this._video&&this.setVideo(t.video),this._onDemandRender&&(this.busy=!1,this._lastDemandTime=null),this._worker=new Worker(t.workerUrl||"jassub-worker.js"),this._worker.onmessage=e=>this._onmessage(e),this._worker.onerror=e=>this._error(e),s.then(()=>{this._worker.postMessage({target:"init",wasmUrl:e._supportsSIMD&&t.modernWasmUrl?t.modernWasmUrl:t.wasmUrl??"jassub-worker.wasm",legacyWasmUrl:t.legacyWasmUrl??"jassub-worker.wasm.js",asyncRender:typeof createImageBitmap<"u"&&(t.asyncRender??!0),onDemandRender:this._onDemandRender,width:this._canvasctrl.width||0,height:this._canvasctrl.height||0,blendMode:t.blendMode||"js",subUrl:t.subUrl,subContent:t.subContent||null,fonts:t.fonts||[],availableFonts:t.availableFonts||{"liberation sans":"./default.woff2"},fallbackFont:t.fallbackFont||"liberation sans",debug:this.debug,targetFps:t.targetFps||24,dropAllAnimations:t.dropAllAnimations,dropAllBlur:t.dropAllBlur,libassMemoryLimit:t.libassMemoryLimit||0,libassGlyphLimit:t.libassGlyphLimit||0,useLocalFonts:typeof queryLocalFonts<"u"&&(t.useLocalFonts??!0),hasBitmapBug:e._hasBitmapBug}),!0===this._offscreenRender&&this.sendMessage("offscreenCanvas",null,[this._canvasctrl])})}_createCanvas(){return this._canvas=document.createElement("canvas"),this._canvas.style.display="block",this._canvas.style.position="absolute",this._canvas.style.pointerEvents="none",this._canvasParent.appendChild(this._canvas),this._canvas}static _testSIMD(){if(null===e._supportsSIMD)try{e._supportsSIMD=WebAssembly.validate(Uint8Array.of(0,97,115,109,1,0,0,0,1,5,1,96,0,1,123,3,2,1,0,10,10,1,8,0,65,0,253,15,253,98,11))}catch{e._supportsSIMD=!1}}static async _testImageBugs(){if(null!==e._hasBitmapBug)return;const t=document.createElement("canvas"),s=t.getContext("2d",{willReadFrequently:!0});if(!s)throw new Error("Canvas rendering not supported");if("function"==typeof ImageData.prototype.constructor)try{new ImageData(new Uint8ClampedArray([0,0,0,0]),1,1)}catch{console.log("Detected that ImageData is not constructable despite browser saying so"),self.ImageData=function(e,t,i){const a=s.createImageData(t,i);return e&&a.data.set(e),a}}const i=document.createElement("canvas"),a=i.getContext("2d",{willReadFrequently:!0});if(!a)throw new Error("Canvas rendering not supported");t.width=i.width=1,t.height=i.height=1,s.clearRect(0,0,1,1),a.clearRect(0,0,1,1);const r=a.getImageData(0,0,1,1).data;s.putImageData(new ImageData(new Uint8ClampedArray([0,255,0,0]),1,1),0,0),a.drawImage(t,0,0);const n=a.getImageData(0,0,1,1).data;if(e._hasAlphaBug=r[1]!==n[1],e._hasAlphaBug&&console.log("Detected a browser having issue with transparent pixels, applying workaround"),typeof createImageBitmap<"u"){const t=new Uint8ClampedArray([255,0,255,0,255]).subarray(1,5);a.drawImage(await createImageBitmap(new ImageData(t,1)),0,0);const{data:s}=a.getImageData(0,0,1,1);e._hasBitmapBug=!1;for(const[i,a]of s.entries())if(Math.abs(t[i]-a)>15){e._hasBitmapBug=!0,console.log("Detected a browser having issue with partial bitmaps, applying workaround");break}}else e._hasBitmapBug=!1;t.remove(),i.remove()}static async _test(){e._testSIMD(),await e._testImageBugs()}resize(e=0,t=0,s=0,i=0,a=this._video?.paused){if((!e||!t)&&this._video){const a=this._getVideoPosition();let r=null;if(this._videoWidth){const e=this._video.videoWidth/this._videoWidth,t=this._video.videoHeight/this._videoHeight;r=this._computeCanvasSize((a.width||0)/e,(a.height||0)/t)}else r=this._computeCanvasSize(a.width||0,a.height||0);e=r.width,t=r.height,this._canvasParent&&(s=a.y-(this._canvasParent.getBoundingClientRect().top-this._video.getBoundingClientRect().top),i=a.x),this._canvas.style.width=a.width+"px",this._canvas.style.height=a.height+"px"}this._canvas.style.top=s+"px",this._canvas.style.left=i+"px",a&&!1===this.busy?this.busy=!0:a=!1,this.sendMessage("canvas",{width:e,height:t,videoWidth:this._videoWidth||this._video.videoWidth,videoHeight:this._videoHeight||this._video.videoHeight,force:a})}_getVideoPosition(e=this._video.videoWidth,t=this._video.videoHeight){const s=e/t,{offsetWidth:i,offsetHeight:a}=this._video;e=i,t=a,i/a>s?e=Math.floor(a*s):t=Math.floor(i/s);return{width:e,height:t,x:(i-e)/2,y:(a-t)/2}}_computeCanvasSize(e=0,t=0){const s=this.prescaleFactor<=0?1:this.prescaleFactor,i=self.devicePixelRatio||1;if(t<=0||e<=0)e=0,t=0;else{const a=s<1?-1:1;let r=t*i;a*r*s<=a*this.prescaleHeightLimit?r*=s:a*r<a*this.prescaleHeightLimit&&(r=this.prescaleHeightLimit),this.maxRenderHeight>0&&r>this.maxRenderHeight&&(r=this.maxRenderHeight),e*=r/t,t=r}return{width:e,height:t}}_timeupdate({type:e}){const t={seeking:!0,waiting:!0,playing:!1}[e];null!=t&&(this._playstate=t),this.setCurrentTime(this._video.paused||this._playstate,this._video.currentTime+this.timeOffset)}setVideo(e){e instanceof HTMLVideoElement?(this._removeListeners(),this._video=e,this._onDemandRender?this._video.requestVideoFrameCallback(this._handleRVFC.bind(this)):(this._playstate=e.paused,e.addEventListener("timeupdate",this._boundTimeUpdate,!1),e.addEventListener("progress",this._boundTimeUpdate,!1),e.addEventListener("waiting",this._boundTimeUpdate,!1),e.addEventListener("seeking",this._boundTimeUpdate,!1),e.addEventListener("playing",this._boundTimeUpdate,!1),e.addEventListener("ratechange",this._boundSetRate,!1),e.addEventListener("resize",this._boundResize,!1)),"VideoFrame"in window&&(e.addEventListener("loadedmetadata",this._boundUpdateColorSpace,!1),e.readyState>2&&this._updateColorSpace()),e.videoWidth>0&&this.resize(),typeof ResizeObserver<"u"&&(this._ro||(this._ro=new ResizeObserver(()=>this.resize())),this._ro.observe(e))):this._error("Video element invalid!")}runBenchmark(){this.sendMessage("runBenchmark")}setTrackByUrl(e){this.sendMessage("setTrackByUrl",{url:e}),this._reAttachOffscreen(),this._ctx&&(this._ctx.filter="none")}setTrack(e){this.sendMessage("setTrack",{content:e}),this._reAttachOffscreen(),this._ctx&&(this._ctx.filter="none")}freeTrack(){this.sendMessage("freeTrack")}setIsPaused(e){this.sendMessage("video",{isPaused:e})}setRate(e){this.sendMessage("video",{rate:e})}setCurrentTime(e,t,s){this.sendMessage("video",{isPaused:e,currentTime:t,rate:s,colorSpace:this._videoColorSpace})}createEvent(e){this.sendMessage("createEvent",{event:e})}setEvent(e,t){this.sendMessage("setEvent",{event:e,index:t})}removeEvent(e){this.sendMessage("removeEvent",{index:e})}getEvents(e){this._fetchFromWorker({target:"getEvents"},(t,{events:s})=>{e(t,s)})}styleOverride(e){this.sendMessage("styleOverride",{style:e})}disableStyleOverride(){this.sendMessage("disableStyleOverride")}createStyle(e){this.sendMessage("createStyle",{style:e})}setStyle(e,t){this.sendMessage("setStyle",{style:e,index:t})}removeStyle(e){this.sendMessage("removeStyle",{index:e})}getStyles(e){this._fetchFromWorker({target:"getStyles"},(t,{styles:s})=>{e(t,s)})}addFont(e){this.sendMessage("addFont",{font:e})}setDefaultFont(e){this.sendMessage("defaultFont",{font:e})}_sendLocalFont(e){try{queryLocalFonts().then(t=>{const s=t?.find(t=>t.fullName.toLowerCase()===e);s&&s.blob().then(e=>{e.arrayBuffer().then(e=>{this.addFont(new Uint8Array(e))})})})}catch(t){console.warn("Local fonts API:",t)}}_getLocalFont({font:e}){try{navigator?.permissions?.query?navigator.permissions.query({name:"local-fonts"}).then(t=>{"granted"===t.state&&this._sendLocalFont(e)}):this._sendLocalFont(e)}catch(t){console.warn("Local fonts API:",t)}}_unbusy(){this._lastDemandTime?this._demandRender(this._lastDemandTime):this.busy=!1}_handleRVFC(e,{mediaTime:t,width:s,height:i}){if(this._destroyed)return null;this.busy?this._lastDemandTime={mediaTime:t,width:s,height:i}:(this.busy=!0,this._demandRender({mediaTime:t,width:s,height:i})),this._video.requestVideoFrameCallback(this._handleRVFC.bind(this))}_demandRender({mediaTime:e,width:t,height:s}){this._lastDemandTime=null,(t!==this._videoWidth||s!==this._videoHeight)&&(this._videoWidth=t,this._videoHeight=s,this.resize()),this.sendMessage("demand",{time:e+this.timeOffset})}_detachOffscreen(){if(!this._offscreenRender||this._ctx)return null;this._canvas.remove(),this._createCanvas(),this._canvasctrl=this._canvas,this._ctx=this._canvasctrl.getContext("2d"),this.sendMessage("detachOffscreen"),this.busy=!1,this.resize(0,0,0,0,!0)}_reAttachOffscreen(){if(!this._offscreenRender||!this._ctx)return null;this._canvas.remove(),this._createCanvas(),this._canvasctrl=this._canvas.transferControlToOffscreen(),this._ctx=!1,this.sendMessage("offscreenCanvas",null,[this._canvasctrl]),this.resize(0,0,0,0,!0)}_updateColorSpace(){this._video.requestVideoFrameCallback(()=>{try{const e=new VideoFrame(this._video);this._videoColorSpace=s[e.colorSpace.matrix],e.close(),this.sendMessage("getColorSpace")}catch(e){console.warn(e)}})}_verifyColorSpace({subtitleColorSpace:e,videoColorSpace:t=this._videoColorSpace}){!e||!t||e!==t&&(this._detachOffscreen(),this._ctx.filter=`url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg'><filter id='f'><feColorMatrix type='matrix' values='${i[e][t]} 0 0 0 0 0 1 0'/></filter></svg>#f")`)}_render({images:e,asyncRender:t,times:s,width:i,height:a,colorSpace:r}){this._unbusy(),this.debug&&(s.IPCTime=Date.now()-s.JSRenderTime),(this._canvasctrl.width!==i||this._canvasctrl.height!==a)&&(this._canvasctrl.width=i,this._canvasctrl.height=a,this._verifyColorSpace({subtitleColorSpace:r})),this._ctx.clearRect(0,0,this._canvasctrl.width,this._canvasctrl.height);for(const n of e)n.image&&(t?(this._ctx.drawImage(n.image,n.x,n.y),n.image.close()):(this._bufferCanvas.width=n.w,this._bufferCanvas.height=n.h,this._bufferCtx.putImageData(new ImageData(this._fixAlpha(new Uint8ClampedArray(n.image)),n.w,n.h),0,0),this._ctx.drawImage(this._bufferCanvas,n.x,n.y)));if(this.debug){s.JSRenderTime=Date.now()-s.JSRenderTime-s.IPCTime;let t=0;const i=s.bitmaps||e.length;delete s.bitmaps;for(const e in s)t+=s[e];console.log("Bitmaps: "+i+" Total: "+(0|t)+"ms",s)}}_fixAlpha(t){if(e._hasAlphaBug)for(let e=3;e<t.length;e+=4)t[e]=t[e]>1?t[e]:1;return t}_ready(){this._init(),this.dispatchEvent(new CustomEvent("ready"))}async sendMessage(e,t={},s){await this._loaded,s?this._worker.postMessage({target:e,transferable:s,...t},[...s]):this._worker.postMessage({target:e,...t})}_fetchFromWorker(e,t){try{const s=e.target,i=setTimeout(()=>{r(new Error("Error: Timeout while try to fetch "+s))},5e3),a=({data:e})=>{e.target===s&&(t(null,e),this._worker.removeEventListener("message",a),this._worker.removeEventListener("error",r),clearTimeout(i))},r=e=>{t(e),this._worker.removeEventListener("message",a),this._worker.removeEventListener("error",r),clearTimeout(i)};this._worker.addEventListener("message",a),this._worker.addEventListener("error",r),this._worker.postMessage(e)}catch(s){this._error(s)}}_console({content:e,command:t}){console[t].apply(console,JSON.parse(e))}_onmessage({data:e}){this["_"+e.target]&&this["_"+e.target](e)}_error(e){const t=e instanceof Error?e:e instanceof ErrorEvent?e.error:new Error(e),s=e instanceof Event?new ErrorEvent(e.type,e):new ErrorEvent("error",{error:t});return this.dispatchEvent(s),console.error(t),t}_removeListeners(){this._video&&(this._ro&&this._ro.unobserve(this._video),this._ctx&&(this._ctx.filter="none"),this._video.removeEventListener("timeupdate",this._boundTimeUpdate),this._video.removeEventListener("progress",this._boundTimeUpdate),this._video.removeEventListener("waiting",this._boundTimeUpdate),this._video.removeEventListener("seeking",this._boundTimeUpdate),this._video.removeEventListener("playing",this._boundTimeUpdate),this._video.removeEventListener("ratechange",this._boundSetRate),this._video.removeEventListener("resize",this._boundResize),this._video.removeEventListener("loadedmetadata",this._boundUpdateColorSpace))}destroy(e){return e&&(e=this._error(e)),this._video&&this._canvasParent&&this._video.parentNode?.removeChild(this._canvasParent),this._destroyed=!0,this._removeListeners(),this.sendMessage("destroy"),this._worker?.terminate(),e}};t(a,"_supportsSIMD",null),t(a,"_hasAlphaBug",null),t(a,"_hasBitmapBug",null);let r=a;function n(e){return t=>{const s=new r({video:t.video,...e});return s._canvasParent.style.zIndex=20,t.on("destroy",()=>{s.destroy()}),{name:"artplayerPluginJassub",instance:s}}}export{n as default};
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