diff --git a/dist/jassub.es.js b/dist/jassub.es.js index 50265aa..ed02689 100644 --- a/dist/jassub.es.js +++ b/dist/jassub.es.js @@ -1,4 +1,4 @@ -!("requestVideoFrameCallback" in HTMLVideoElement.prototype) && "getVideoPlaybackQuality" in HTMLVideoElement.prototype && (HTMLVideoElement.prototype._rvfcpolyfillmap = {}, HTMLVideoElement.prototype.requestVideoFrameCallback = function(c) { +typeof HTMLVideoElement < "u" && !("requestVideoFrameCallback" in HTMLVideoElement.prototype) && "getVideoPlaybackQuality" in HTMLVideoElement.prototype && (HTMLVideoElement.prototype._rvfcpolyfillmap = {}, HTMLVideoElement.prototype.requestVideoFrameCallback = function(c) { const e = performance.now(), t = this.getVideoPlaybackQuality(), s = this.mozPresentedFrames || this.mozPaintedFrames || t.totalVideoFrames - t.droppedVideoFrames, a = (n, r) => { const i = this.getVideoPlaybackQuality(), o = this.mozPresentedFrames || this.mozPaintedFrames || i.totalVideoFrames - i.droppedVideoFrames; if (o > s) { diff --git a/dist/jassub.umd.js b/dist/jassub.umd.js index 1a35270..10d66e8 100644 --- a/dist/jassub.umd.js +++ b/dist/jassub.umd.js @@ -1 +1 @@ -(function(c,m){typeof exports=="object"&&typeof module<"u"?module.exports=m():typeof define=="function"&&define.amd?define(m):(c=typeof globalThis<"u"?globalThis:c||self,c.JASSUB=m())})(this,function(){"use strict";!("requestVideoFrameCallback"in HTMLVideoElement.prototype)&&"getVideoPlaybackQuality"in HTMLVideoElement.prototype&&(HTMLVideoElement.prototype._rvfcpolyfillmap={},HTMLVideoElement.prototype.requestVideoFrameCallback=function(_){const e=performance.now(),t=this.getVideoPlaybackQuality(),s=this.mozPresentedFrames||this.mozPaintedFrames||t.totalVideoFrames-t.droppedVideoFrames,a=(n,r)=>{const i=this.getVideoPlaybackQuality(),h=this.mozPresentedFrames||this.mozPaintedFrames||i.totalVideoFrames-i.droppedVideoFrames;if(h>s){const d=this.mozFrameDelay||i.totalFrameDelay-t.totalFrameDelay||0,l=r-n;_(r,{presentationTime:r+d*1e3,expectedDisplayTime:r+l,width:this.videoWidth,height:this.videoHeight,mediaTime:Math.max(0,this.currentTime||0)+l/1e3,presentedFrames:h,processingDuration:d}),delete this._rvfcpolyfillmap[e]}else this._rvfcpolyfillmap[e]=requestAnimationFrame(d=>a(r,d))};return this._rvfcpolyfillmap[e]=requestAnimationFrame(n=>a(e,n)),e},HTMLVideoElement.prototype.cancelVideoFrameCallback=function(_){cancelAnimationFrame(this._rvfcpolyfillmap[_]),delete this._rvfcpolyfillmap[_]});const c={bt709:"BT709",bt470bg:"BT601",smpte170m:"BT601"},m={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"}};class o extends EventTarget{constructor(e){if(super(),!globalThis.Worker)throw this.destroy("Worker not supported");if(!e)throw this.destroy("No options provided");this._loaded=new Promise(s=>{this._init=s});const t=o._test();if(this._onDemandRender="requestVideoFrameCallback"in HTMLVideoElement.prototype&&(e.onDemandRender??!0),this._offscreenRender="transferControlToOffscreen"in HTMLCanvasElement.prototype&&!e.canvas&&(e.offscreenRender??!0),this.timeOffset=e.timeOffset||0,this._video=e.video,this._videoHeight=0,this._videoWidth=0,this._videoColorSpace=null,this._canvas=e.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=!!e.debug,this.prescaleFactor=e.prescaleFactor||1,this.prescaleHeightLimit=e.prescaleHeightLimit||1080,this.maxRenderHeight=e.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(e.video),this._onDemandRender&&(this.busy=!1,this._lastDemandTime=null),this._worker=new Worker(e.workerUrl||"jassub-worker.js"),this._worker.onmessage=s=>this._onmessage(s),this._worker.onerror=s=>this._error(s),t.then(()=>{this._worker.postMessage({target:"init",wasmUrl:o._supportsSIMD&&e.modernWasmUrl?e.modernWasmUrl:e.wasmUrl||"jassub-worker.wasm",legacyWasmUrl:e.legacyWasmUrl||"jassub-worker.wasm.js",asyncRender:typeof createImageBitmap<"u"&&(e.asyncRender??!0),onDemandRender:this._onDemandRender,width:this._canvasctrl.width||0,height:this._canvasctrl.height||0,blendMode:e.blendMode||"js",subUrl:e.subUrl,subContent:e.subContent||null,fonts:e.fonts||[],availableFonts:e.availableFonts||{"liberation sans":"./default.woff2"},fallbackFont:e.fallbackFont||"liberation sans",debug:this.debug,targetFps:e.targetFps||24,dropAllAnimations:e.dropAllAnimations,dropAllBlur:e.dropAllBlur,libassMemoryLimit:e.libassMemoryLimit||0,libassGlyphLimit:e.libassGlyphLimit||0,useLocalFonts:typeof queryLocalFonts<"u"&&(e.useLocalFonts??!0),hasBitmapBug:o._hasBitmapBug}),this._offscreenRender===!0&&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 _supportsSIMD=null;static _hasAlphaBug=null;static _hasBitmapBug=null;static async _test(){if(o._hasBitmapBug!==null)return null;try{o._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{o._supportsSIMD=!1}const e=document.createElement("canvas"),t=e.getContext("2d",{willReadFrequently:!0});if(!t)throw new Error("Canvas rendering not supported");if(typeof ImageData.prototype.constructor=="function")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(h,d,l){const f=t.createImageData(d,l);return h&&f.data.set(h),f}}const s=document.createElement("canvas"),a=s.getContext("2d",{willReadFrequently:!0});if(!a)throw new Error("Canvas rendering not supported");e.width=s.width=1,e.height=s.height=1,t.clearRect(0,0,1,1),a.clearRect(0,0,1,1);const n=a.getImageData(0,0,1,1).data;t.putImageData(new ImageData(new Uint8ClampedArray([0,255,0,0]),1,1),0,0),a.drawImage(e,0,0);const r=a.getImageData(0,0,1,1).data;if(o._hasAlphaBug=n[1]!==r[1],o._hasAlphaBug&&console.log("Detected a browser having issue with transparent pixels, applying workaround"),typeof createImageBitmap<"u"){const i=new Uint8ClampedArray([255,0,255,0,255]).subarray(1,5);a.drawImage(await createImageBitmap(new ImageData(i,1)),0,0);const{data:h}=a.getImageData(0,0,1,1);o._hasBitmapBug=!1;for(const[d,l]of h.entries())if(Math.abs(i[d]-l)>15){o._hasBitmapBug=!0,console.log("Detected a browser having issue with partial bitmaps, applying workaround");break}}else o._hasBitmapBug=!1;e.remove(),s.remove()}resize(e=0,t=0,s=0,a=0,n=this._video?.paused){if((!e||!t)&&this._video){const r=this._getVideoPosition();let i=null;if(this._videoWidth){const h=this._video.videoWidth/this._videoWidth,d=this._video.videoHeight/this._videoHeight;i=this._computeCanvasSize((r.width||0)/h,(r.height||0)/d)}else i=this._computeCanvasSize(r.width||0,r.height||0);e=i.width,t=i.height,this._canvasParent&&(s=r.y-(this._canvasParent.getBoundingClientRect().top-this._video.getBoundingClientRect().top),a=r.x),this._canvas.style.width=r.width+"px",this._canvas.style.height=r.height+"px"}this._canvas.style.top=s+"px",this._canvas.style.left=a+"px",n&&this.busy===!1?this.busy=!0:n=!1,this.sendMessage("canvas",{width:e,height:t,force:n})}_getVideoPosition(e=this._video.videoWidth,t=this._video.videoHeight){const s=e/t,{offsetWidth:a,offsetHeight:n}=this._video,r=a/n;e=a,t=n,r>s?e=Math.floor(n*s):t=Math.floor(a/s);const i=(a-e)/2,h=(n-t)/2;return{width:e,height:t,x:i,y:h}}_computeCanvasSize(e=0,t=0){const s=this.prescaleFactor<=0?1:this.prescaleFactor,a=self.devicePixelRatio||1;if(e=e*a,t=t*a,t<=0||e<=0)e=0,t=0;else{const n=s<1?-1:1;let r=t*a;n*r*s<=n*this.prescaleHeightLimit?r*=s:n*r0&&r>this.maxRenderHeight&&(r=this.maxRenderHeight),e*=r/t,t=r}return{width:e,height:t}}_timeupdate({type:e}){const s={seeking:!0,waiting:!0,playing:!1}[e];s!=null&&(this._playstate=s),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)})}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})}_sendLocalFont(e){try{queryLocalFonts().then(t=>{const s=t?.find(a=>a.fullName.toLowerCase()===e);s&&s.blob().then(a=>{a.arrayBuffer().then(n=>{this.addFont(new Uint8Array(n))})})})}catch(t){console.warn("Local fonts API:",t)}}_getLocalFont({font:e}){try{navigator?.permissions?.query?navigator.permissions.query({name:"local-fonts"}).then(t=>{t.state==="granted"&&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:a}){if(this._destroyed)return null;this.busy?this._lastDemandTime={mediaTime:t,width:s,height:a}:(this.busy=!0,this._demandRender({mediaTime:t,width:s,height:a})),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=c[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,#f")`)}_render({images:e,asyncRender:t,times:s,width:a,height:n,colorSpace:r}){this._unbusy(),this.debug&&(s.IPCTime=Date.now()-s.JSRenderTime),(this._canvasctrl.width!==a||this._canvasctrl.height!==n)&&(this._canvasctrl.width=a,this._canvasctrl.height=n,this._verifyColorSpace({subtitleColorSpace:r})),this._ctx.clearRect(0,0,this._canvasctrl.width,this._canvasctrl.height);for(const i of e)i.image&&(t?(this._ctx.drawImage(i.image,i.x,i.y),i.image.close()):(this._bufferCanvas.width=i.w,this._bufferCanvas.height=i.h,this._bufferCtx.putImageData(new ImageData(this._fixAlpha(new Uint8ClampedArray(i.image)),i.w,i.h),0,0),this._ctx.drawImage(this._bufferCanvas,i.x,i.y)));if(this.debug){s.JSRenderTime=Date.now()-s.JSRenderTime-s.IPCTime;let i=0;const h=s.bitmaps||e.length;delete s.bitmaps;for(const d in s)i+=s[d];console.log("Bitmaps: "+h+" Total: "+(i|0)+"ms",s)}}_fixAlpha(e){if(o._hasAlphaBug)for(let t=3;t1?e[t]:1;return e}_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,a=setTimeout(()=>{r(new Error("Error: Timeout while try to fetch "+s))},5e3),n=({data:i})=>{i.target===s&&(t(null,i),this._worker.removeEventListener("message",n),this._worker.removeEventListener("error",r),clearTimeout(a))},r=i=>{t(i),this._worker.removeEventListener("message",n),this._worker.removeEventListener("error",r),clearTimeout(a)};this._worker.addEventListener("message",n),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}}return o}); +(function(c,m){typeof exports=="object"&&typeof module<"u"?module.exports=m():typeof define=="function"&&define.amd?define(m):(c=typeof globalThis<"u"?globalThis:c||self,c.JASSUB=m())})(this,function(){"use strict";typeof HTMLVideoElement<"u"&&!("requestVideoFrameCallback"in HTMLVideoElement.prototype)&&"getVideoPlaybackQuality"in HTMLVideoElement.prototype&&(HTMLVideoElement.prototype._rvfcpolyfillmap={},HTMLVideoElement.prototype.requestVideoFrameCallback=function(_){const e=performance.now(),t=this.getVideoPlaybackQuality(),s=this.mozPresentedFrames||this.mozPaintedFrames||t.totalVideoFrames-t.droppedVideoFrames,a=(n,r)=>{const i=this.getVideoPlaybackQuality(),h=this.mozPresentedFrames||this.mozPaintedFrames||i.totalVideoFrames-i.droppedVideoFrames;if(h>s){const d=this.mozFrameDelay||i.totalFrameDelay-t.totalFrameDelay||0,l=r-n;_(r,{presentationTime:r+d*1e3,expectedDisplayTime:r+l,width:this.videoWidth,height:this.videoHeight,mediaTime:Math.max(0,this.currentTime||0)+l/1e3,presentedFrames:h,processingDuration:d}),delete this._rvfcpolyfillmap[e]}else this._rvfcpolyfillmap[e]=requestAnimationFrame(d=>a(r,d))};return this._rvfcpolyfillmap[e]=requestAnimationFrame(n=>a(e,n)),e},HTMLVideoElement.prototype.cancelVideoFrameCallback=function(_){cancelAnimationFrame(this._rvfcpolyfillmap[_]),delete this._rvfcpolyfillmap[_]});const c={bt709:"BT709",bt470bg:"BT601",smpte170m:"BT601"},m={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"}};class o extends EventTarget{constructor(e){if(super(),!globalThis.Worker)throw this.destroy("Worker not supported");if(!e)throw this.destroy("No options provided");this._loaded=new Promise(s=>{this._init=s});const t=o._test();if(this._onDemandRender="requestVideoFrameCallback"in HTMLVideoElement.prototype&&(e.onDemandRender??!0),this._offscreenRender="transferControlToOffscreen"in HTMLCanvasElement.prototype&&!e.canvas&&(e.offscreenRender??!0),this.timeOffset=e.timeOffset||0,this._video=e.video,this._videoHeight=0,this._videoWidth=0,this._videoColorSpace=null,this._canvas=e.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=!!e.debug,this.prescaleFactor=e.prescaleFactor||1,this.prescaleHeightLimit=e.prescaleHeightLimit||1080,this.maxRenderHeight=e.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(e.video),this._onDemandRender&&(this.busy=!1,this._lastDemandTime=null),this._worker=new Worker(e.workerUrl||"jassub-worker.js"),this._worker.onmessage=s=>this._onmessage(s),this._worker.onerror=s=>this._error(s),t.then(()=>{this._worker.postMessage({target:"init",wasmUrl:o._supportsSIMD&&e.modernWasmUrl?e.modernWasmUrl:e.wasmUrl||"jassub-worker.wasm",legacyWasmUrl:e.legacyWasmUrl||"jassub-worker.wasm.js",asyncRender:typeof createImageBitmap<"u"&&(e.asyncRender??!0),onDemandRender:this._onDemandRender,width:this._canvasctrl.width||0,height:this._canvasctrl.height||0,blendMode:e.blendMode||"js",subUrl:e.subUrl,subContent:e.subContent||null,fonts:e.fonts||[],availableFonts:e.availableFonts||{"liberation sans":"./default.woff2"},fallbackFont:e.fallbackFont||"liberation sans",debug:this.debug,targetFps:e.targetFps||24,dropAllAnimations:e.dropAllAnimations,dropAllBlur:e.dropAllBlur,libassMemoryLimit:e.libassMemoryLimit||0,libassGlyphLimit:e.libassGlyphLimit||0,useLocalFonts:typeof queryLocalFonts<"u"&&(e.useLocalFonts??!0),hasBitmapBug:o._hasBitmapBug}),this._offscreenRender===!0&&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 _supportsSIMD=null;static _hasAlphaBug=null;static _hasBitmapBug=null;static async _test(){if(o._hasBitmapBug!==null)return null;try{o._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{o._supportsSIMD=!1}const e=document.createElement("canvas"),t=e.getContext("2d",{willReadFrequently:!0});if(!t)throw new Error("Canvas rendering not supported");if(typeof ImageData.prototype.constructor=="function")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(h,d,l){const f=t.createImageData(d,l);return h&&f.data.set(h),f}}const s=document.createElement("canvas"),a=s.getContext("2d",{willReadFrequently:!0});if(!a)throw new Error("Canvas rendering not supported");e.width=s.width=1,e.height=s.height=1,t.clearRect(0,0,1,1),a.clearRect(0,0,1,1);const n=a.getImageData(0,0,1,1).data;t.putImageData(new ImageData(new Uint8ClampedArray([0,255,0,0]),1,1),0,0),a.drawImage(e,0,0);const r=a.getImageData(0,0,1,1).data;if(o._hasAlphaBug=n[1]!==r[1],o._hasAlphaBug&&console.log("Detected a browser having issue with transparent pixels, applying workaround"),typeof createImageBitmap<"u"){const i=new Uint8ClampedArray([255,0,255,0,255]).subarray(1,5);a.drawImage(await createImageBitmap(new ImageData(i,1)),0,0);const{data:h}=a.getImageData(0,0,1,1);o._hasBitmapBug=!1;for(const[d,l]of h.entries())if(Math.abs(i[d]-l)>15){o._hasBitmapBug=!0,console.log("Detected a browser having issue with partial bitmaps, applying workaround");break}}else o._hasBitmapBug=!1;e.remove(),s.remove()}resize(e=0,t=0,s=0,a=0,n=this._video?.paused){if((!e||!t)&&this._video){const r=this._getVideoPosition();let i=null;if(this._videoWidth){const h=this._video.videoWidth/this._videoWidth,d=this._video.videoHeight/this._videoHeight;i=this._computeCanvasSize((r.width||0)/h,(r.height||0)/d)}else i=this._computeCanvasSize(r.width||0,r.height||0);e=i.width,t=i.height,this._canvasParent&&(s=r.y-(this._canvasParent.getBoundingClientRect().top-this._video.getBoundingClientRect().top),a=r.x),this._canvas.style.width=r.width+"px",this._canvas.style.height=r.height+"px"}this._canvas.style.top=s+"px",this._canvas.style.left=a+"px",n&&this.busy===!1?this.busy=!0:n=!1,this.sendMessage("canvas",{width:e,height:t,force:n})}_getVideoPosition(e=this._video.videoWidth,t=this._video.videoHeight){const s=e/t,{offsetWidth:a,offsetHeight:n}=this._video,r=a/n;e=a,t=n,r>s?e=Math.floor(n*s):t=Math.floor(a/s);const i=(a-e)/2,h=(n-t)/2;return{width:e,height:t,x:i,y:h}}_computeCanvasSize(e=0,t=0){const s=this.prescaleFactor<=0?1:this.prescaleFactor,a=self.devicePixelRatio||1;if(e=e*a,t=t*a,t<=0||e<=0)e=0,t=0;else{const n=s<1?-1:1;let r=t*a;n*r*s<=n*this.prescaleHeightLimit?r*=s:n*r0&&r>this.maxRenderHeight&&(r=this.maxRenderHeight),e*=r/t,t=r}return{width:e,height:t}}_timeupdate({type:e}){const s={seeking:!0,waiting:!0,playing:!1}[e];s!=null&&(this._playstate=s),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)})}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})}_sendLocalFont(e){try{queryLocalFonts().then(t=>{const s=t?.find(a=>a.fullName.toLowerCase()===e);s&&s.blob().then(a=>{a.arrayBuffer().then(n=>{this.addFont(new Uint8Array(n))})})})}catch(t){console.warn("Local fonts API:",t)}}_getLocalFont({font:e}){try{navigator?.permissions?.query?navigator.permissions.query({name:"local-fonts"}).then(t=>{t.state==="granted"&&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:a}){if(this._destroyed)return null;this.busy?this._lastDemandTime={mediaTime:t,width:s,height:a}:(this.busy=!0,this._demandRender({mediaTime:t,width:s,height:a})),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=c[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,#f")`)}_render({images:e,asyncRender:t,times:s,width:a,height:n,colorSpace:r}){this._unbusy(),this.debug&&(s.IPCTime=Date.now()-s.JSRenderTime),(this._canvasctrl.width!==a||this._canvasctrl.height!==n)&&(this._canvasctrl.width=a,this._canvasctrl.height=n,this._verifyColorSpace({subtitleColorSpace:r})),this._ctx.clearRect(0,0,this._canvasctrl.width,this._canvasctrl.height);for(const i of e)i.image&&(t?(this._ctx.drawImage(i.image,i.x,i.y),i.image.close()):(this._bufferCanvas.width=i.w,this._bufferCanvas.height=i.h,this._bufferCtx.putImageData(new ImageData(this._fixAlpha(new Uint8ClampedArray(i.image)),i.w,i.h),0,0),this._ctx.drawImage(this._bufferCanvas,i.x,i.y)));if(this.debug){s.JSRenderTime=Date.now()-s.JSRenderTime-s.IPCTime;let i=0;const h=s.bitmaps||e.length;delete s.bitmaps;for(const d in s)i+=s[d];console.log("Bitmaps: "+h+" Total: "+(i|0)+"ms",s)}}_fixAlpha(e){if(o._hasAlphaBug)for(let t=3;t1?e[t]:1;return e}_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,a=setTimeout(()=>{r(new Error("Error: Timeout while try to fetch "+s))},5e3),n=({data:i})=>{i.target===s&&(t(null,i),this._worker.removeEventListener("message",n),this._worker.removeEventListener("error",r),clearTimeout(a))},r=i=>{t(i),this._worker.removeEventListener("message",n),this._worker.removeEventListener("error",r),clearTimeout(a)};this._worker.addEventListener("message",n),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}}return o}); diff --git a/package.json b/package.json index 7a8c745..c8042ac 100644 --- a/package.json +++ b/package.json @@ -34,7 +34,7 @@ }, "homepage": "https://github.com/ThaUnknown/jassub", "dependencies": { - "rvfc-polyfill": "^1.0.6" + "rvfc-polyfill": "^1.0.7" }, "devDependencies": { "@types/emscripten": "^1.39.7", diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml index 8c70c67..fd0f169 100644 --- a/pnpm-lock.yaml +++ b/pnpm-lock.yaml @@ -6,8 +6,8 @@ settings: dependencies: rvfc-polyfill: - specifier: ^1.0.6 - version: 1.0.6 + specifier: ^1.0.7 + version: 1.0.7 devDependencies: '@types/emscripten': @@ -520,8 +520,8 @@ packages: queue-microtask: 1.2.3 dev: true - /rvfc-polyfill@1.0.6: - resolution: {integrity: sha512-y7tu9Bh19CTnzBZWEQEEEo5UYvhVi5Ud9C3ndeWtm9m+tUO5vK8qqbpAMJfEDgRSFZokrVHmehnhGjd9LyazBg==} + /rvfc-polyfill@1.0.7: + resolution: {integrity: sha512-seBl7J1J3/k0LuzW2T9fG6JIOpni5AbU+/87LA+zTYKgTVhsfShmS8K/yOo1eeEjGJHnAdkVAUUM+PEjN9Mpkw==} dev: false /source-map-js@1.0.2: