46 lines
11 KiB
JavaScript
46 lines
11 KiB
JavaScript
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var OGVDemuxerWebMW = (function() {
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var _scriptDir = typeof document !== 'undefined' && document.currentScript ? document.currentScript.src : undefined;
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if (typeof __filename !== 'undefined') _scriptDir = _scriptDir || __filename;
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return (
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function(OGVDemuxerWebMW) {
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OGVDemuxerWebMW = OGVDemuxerWebMW || {};
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var a;a||(a=typeof OGVDemuxerWebMW !== 'undefined' ? OGVDemuxerWebMW : {});var h,k;a.ready=new Promise(function(b,c){h=b;k=c});var l={},m;for(m in a)a.hasOwnProperty(m)&&(l[m]=a[m]);var n="object"===typeof window,p="function"===typeof importScripts,q="",r,t,v,w,x;
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if("object"===typeof process&&"object"===typeof process.versions&&"string"===typeof process.versions.node)q=p?require("path").dirname(q)+"/":__dirname+"/",r=function(b,c){w||(w=require("fs"));x||(x=require("path"));b=x.normalize(b);return w.readFileSync(b,c?null:"utf8")},v=function(b){b=r(b,!0);b.buffer||(b=new Uint8Array(b));b.buffer||y("Assertion failed: undefined");return b},t=function(b,c,d){w||(w=require("fs"));x||(x=require("path"));b=x.normalize(b);w.readFile(b,function(e,f){e?d(e):c(f.buffer)})},
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1<process.argv.length&&process.argv[1].replace(/\\/g,"/"),process.argv.slice(2),process.on("unhandledRejection",y),a.inspect=function(){return"[Emscripten Module object]"};else if(n||p)p?q=self.location.href:"undefined"!==typeof document&&document.currentScript&&(q=document.currentScript.src),_scriptDir&&(q=_scriptDir),0!==q.indexOf("blob:")?q=q.substr(0,q.lastIndexOf("/")+1):q="",r=function(b){var c=new XMLHttpRequest;c.open("GET",b,!1);c.send(null);return c.responseText},p&&(v=function(b){var c=
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new XMLHttpRequest;c.open("GET",b,!1);c.responseType="arraybuffer";c.send(null);return new Uint8Array(c.response)}),t=function(b,c,d){var e=new XMLHttpRequest;e.open("GET",b,!0);e.responseType="arraybuffer";e.onload=function(){200==e.status||0==e.status&&e.response?c(e.response):d()};e.onerror=d;e.send(null)};var aa=a.print||console.log.bind(console),z=a.printErr||console.warn.bind(console);for(m in l)l.hasOwnProperty(m)&&(a[m]=l[m]);l=null;var A;a.wasmBinary&&(A=a.wasmBinary);
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var noExitRuntime=a.noExitRuntime||!0;"object"!==typeof WebAssembly&&y("no native wasm support detected");var E,F=!1,G="undefined"!==typeof TextDecoder?new TextDecoder("utf8"):void 0;
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function H(b,c,d){var e=c+d;for(d=c;b[d]&&!(d>=e);)++d;if(16<d-c&&b.subarray&&G)return G.decode(b.subarray(c,d));for(e="";c<d;){var f=b[c++];if(f&128){var g=b[c++]&63;if(192==(f&224))e+=String.fromCharCode((f&31)<<6|g);else{var u=b[c++]&63;f=224==(f&240)?(f&15)<<12|g<<6|u:(f&7)<<18|g<<12|u<<6|b[c++]&63;65536>f?e+=String.fromCharCode(f):(f-=65536,e+=String.fromCharCode(55296|f>>10,56320|f&1023))}}else e+=String.fromCharCode(f)}return e}function J(b){return b?H(K,b,void 0):""}var L,K,M;
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function N(){var b=E.buffer;L=b;a.HEAP8=new Int8Array(b);a.HEAP16=new Int16Array(b);a.HEAP32=M=new Int32Array(b);a.HEAPU8=K=new Uint8Array(b);a.HEAPU16=new Uint16Array(b);a.HEAPU32=new Uint32Array(b);a.HEAPF32=new Float32Array(b);a.HEAPF64=new Float64Array(b)}var O,ba=[],ca=[],da=[];function ea(){var b=a.preRun.shift();ba.unshift(b)}var P=0,Q=null,R=null;a.preloadedImages={};a.preloadedAudios={};
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function y(b){if(a.onAbort)a.onAbort(b);z(b);F=!0;b=new WebAssembly.RuntimeError("abort("+b+"). Build with -s ASSERTIONS=1 for more info.");k(b);throw b;}function fa(){return S.startsWith("data:application/octet-stream;base64,")}var S;S="ogv-demuxer-webm-wasm.wasm";if(!fa()){var ha=S;S=a.locateFile?a.locateFile(ha,q):q+ha}function ia(){var b=S;try{if(b==S&&A)return new Uint8Array(A);if(v)return v(b);throw"both async and sync fetching of the wasm failed";}catch(c){y(c)}}
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function ja(){if(!A&&(n||p)){if("function"===typeof fetch&&!S.startsWith("file://"))return fetch(S,{credentials:"same-origin"}).then(function(b){if(!b.ok)throw"failed to load wasm binary file at '"+S+"'";return b.arrayBuffer()}).catch(function(){return ia()});if(t)return new Promise(function(b,c){t(S,function(d){b(new Uint8Array(d))},c)})}return Promise.resolve().then(function(){return ia()})}
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function T(b){for(;0<b.length;){var c=b.shift();if("function"==typeof c)c(a);else{var d=c.B;"number"===typeof d?void 0===c.A?O.get(d)():O.get(d)(c.A):d(void 0===c.A?null:c.A)}}}
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var ka=[null,[],[]],la={a:function(b,c,d,e){y("Assertion failed: "+J(b)+", at: "+[c?J(c):"unknown filename",d,e?J(e):"unknown function"])},f:function(){y()},d:function(b,c,d){K.copyWithin(b,c,c+d)},e:function(b){var c=K.length;b>>>=0;if(2147483648<b)return!1;for(var d=1;4>=d;d*=2){var e=c*(1+.2/d);e=Math.min(e,b+100663296);e=Math.max(b,e);0<e%65536&&(e+=65536-e%65536);a:{try{E.grow(Math.min(2147483648,e)-L.byteLength+65535>>>16);N();var f=1;break a}catch(g){}f=void 0}if(f)return!0}return!1},b:function(b,
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c,d,e){for(var f=0,g=0;g<d;g++){for(var u=M[c+8*g>>2],I=M[c+(8*g+4)>>2],B=0;B<I;B++){var C=K[u+B],D=ka[b];0===C||10===C?((1===b?aa:z)(H(D,0)),D.length=0):D.push(C)}f+=I}M[e>>2]=f;return 0},c:function(b,c,d,e){var f=E.buffer;a.audioPackets.push({data:f.slice?f.slice(b,b+c):(new Uint8Array(new Uint8Array(f,b,c))).buffer,timestamp:d,discardPadding:e})},j:function(b,c,d,e,f,g,u,I,B,C,D){a.videoFormat={width:b,height:c,chromaWidth:d,chromaHeight:e,cropLeft:I,cropTop:B,cropWidth:g,cropHeight:u,displayWidth:C,
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displayHeight:D,fps:f}},h:function(b,c){function d(e){for(var f="",g=new Uint8Array(E.buffer);0!=g[e];e++)f+=String.fromCharCode(g[e]);return f}b&&(a.videoCodec=d(b));c&&(a.audioCodec=d(c));b=a._ogv_demuxer_media_duration();a.duration=0<=b?b:NaN;a.loadedMetadata=!0},i:function(b,c){if(a.onseek)a.onseek(b+4294967296*c)},g:function(b,c,d,e,f){var g=E.buffer;a.videoPackets.push({data:g.slice?g.slice(b,b+c):(new Uint8Array(new Uint8Array(g,b,c))).buffer,timestamp:d,keyframeTimestamp:e,isKeyframe:!!f})}};
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(function(){function b(f){a.asm=f.exports;E=a.asm.k;N();O=a.asm.w;ca.unshift(a.asm.l);P--;a.monitorRunDependencies&&a.monitorRunDependencies(P);0==P&&(null!==Q&&(clearInterval(Q),Q=null),R&&(f=R,R=null,f()))}function c(f){b(f.instance)}function d(f){return ja().then(function(g){return WebAssembly.instantiate(g,e)}).then(f,function(g){z("failed to asynchronously prepare wasm: "+g);y(g)})}var e={a:la};P++;a.monitorRunDependencies&&a.monitorRunDependencies(P);if(a.instantiateWasm)try{return a.instantiateWasm(e,
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b)}catch(f){return z("Module.instantiateWasm callback failed with error: "+f),!1}(function(){return A||"function"!==typeof WebAssembly.instantiateStreaming||fa()||S.startsWith("file://")||"function"!==typeof fetch?d(c):fetch(S,{credentials:"same-origin"}).then(function(f){return WebAssembly.instantiateStreaming(f,e).then(c,function(g){z("wasm streaming compile failed: "+g);z("falling back to ArrayBuffer instantiation");return d(c)})})})().catch(k);return{}})();
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a.___wasm_call_ctors=function(){return(a.___wasm_call_ctors=a.asm.l).apply(null,arguments)};a._ogv_demuxer_init=function(){return(a._ogv_demuxer_init=a.asm.m).apply(null,arguments)};a._ogv_demuxer_receive_input=function(){return(a._ogv_demuxer_receive_input=a.asm.n).apply(null,arguments)};a._ogv_demuxer_process=function(){return(a._ogv_demuxer_process=a.asm.o).apply(null,arguments)};a._ogv_demuxer_destroy=function(){return(a._ogv_demuxer_destroy=a.asm.p).apply(null,arguments)};
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a._ogv_demuxer_flush=function(){return(a._ogv_demuxer_flush=a.asm.q).apply(null,arguments)};a._ogv_demuxer_media_length=function(){return(a._ogv_demuxer_media_length=a.asm.r).apply(null,arguments)};a._ogv_demuxer_media_duration=function(){return(a._ogv_demuxer_media_duration=a.asm.s).apply(null,arguments)};a._ogv_demuxer_seekable=function(){return(a._ogv_demuxer_seekable=a.asm.t).apply(null,arguments)};
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a._ogv_demuxer_keypoint_offset=function(){return(a._ogv_demuxer_keypoint_offset=a.asm.u).apply(null,arguments)};a._ogv_demuxer_seek_to_keypoint=function(){return(a._ogv_demuxer_seek_to_keypoint=a.asm.v).apply(null,arguments)};a._malloc=function(){return(a._malloc=a.asm.x).apply(null,arguments)};a._free=function(){return(a._free=a.asm.y).apply(null,arguments)};var U;R=function ma(){U||V();U||(R=ma)};
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function V(){function b(){if(!U&&(U=!0,a.calledRun=!0,!F)){T(ca);h(a);if(a.onRuntimeInitialized)a.onRuntimeInitialized();if(a.postRun)for("function"==typeof a.postRun&&(a.postRun=[a.postRun]);a.postRun.length;){var c=a.postRun.shift();da.unshift(c)}T(da)}}if(!(0<P)){if(a.preRun)for("function"==typeof a.preRun&&(a.preRun=[a.preRun]);a.preRun.length;)ea();T(ba);0<P||(a.setStatus?(a.setStatus("Running..."),setTimeout(function(){setTimeout(function(){a.setStatus("")},1);b()},1)):b())}}a.run=V;
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if(a.preInit)for("function"==typeof a.preInit&&(a.preInit=[a.preInit]);0<a.preInit.length;)a.preInit.pop()();V();var W,X,Y;"undefined"===typeof performance||"undefined"===typeof performance.now?Y=Date.now:Y=performance.now.bind(performance);function Z(b){var c=Y();b=b();c=Y()-c;a.cpuTime+=c;return b}a.loadedMetadata=!1;a.videoCodec=null;a.audioCodec=null;a.duration=NaN;a.onseek=null;a.cpuTime=0;a.audioPackets=[];Object.defineProperty(a,"hasAudio",{get:function(){return a.loadedMetadata&&a.audioCodec}});
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Object.defineProperty(a,"audioReady",{get:function(){return 0<a.audioPackets.length}});Object.defineProperty(a,"audioTimestamp",{get:function(){return 0<a.audioPackets.length?a.audioPackets[0].timestamp:-1}});a.videoPackets=[];Object.defineProperty(a,"hasVideo",{get:function(){return a.loadedMetadata&&a.videoCodec}});Object.defineProperty(a,"frameReady",{get:function(){return 0<a.videoPackets.length}});
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Object.defineProperty(a,"frameTimestamp",{get:function(){return 0<a.videoPackets.length?a.videoPackets[0].timestamp:-1}});Object.defineProperty(a,"keyframeTimestamp",{get:function(){return 0<a.videoPackets.length?a.videoPackets[0].keyframeTimestamp:-1}});Object.defineProperty(a,"nextKeyframeTimestamp",{get:function(){for(var b=0;b<a.videoPackets.length;b++){var c=a.videoPackets[b];if(c.isKeyframe)return c.timestamp}return-1}});Object.defineProperty(a,"processing",{get:function(){return!1}});
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Object.defineProperty(a,"seekable",{get:function(){return!!a._ogv_demuxer_seekable()}});a.init=function(b){Z(function(){a._ogv_demuxer_init()});b()};a.receiveInput=function(b,c){Z(function(){var d=b.byteLength;W&&X>=d||(W&&a._free(W),X=d,W=a._malloc(X));var e=W;(new Uint8Array(E.buffer,e,d)).set(new Uint8Array(b));a._ogv_demuxer_receive_input(e,d)});c()};a.process=function(b){var c=Z(function(){return a._ogv_demuxer_process()});b(!!c)};
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a.dequeueVideoPacket=function(b){if(a.videoPackets.length){var c=a.videoPackets.shift().data;b(c)}else b(null)};a.dequeueAudioPacket=function(b){if(a.audioPackets.length){var c=a.audioPackets.shift();b(c.data,c.discardPadding)}else b(null)};a.getKeypointOffset=function(b,c){var d=Z(function(){return a._ogv_demuxer_keypoint_offset(1E3*b)});c(d)};
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a.seekToKeypoint=function(b,c){var d=Z(function(){return a._ogv_demuxer_seek_to_keypoint(1E3*b)});d&&(a.audioPackets.splice(0,a.audioPackets.length),a.videoPackets.splice(0,a.videoPackets.length));c(!!d)};a.flush=function(b){Z(function(){a.audioPackets.splice(0,a.audioPackets.length);a.videoPackets.splice(0,a.videoPackets.length);a._ogv_demuxer_flush()});b()};a.close=function(){};
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return OGVDemuxerWebMW.ready
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}
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);
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})();
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if (typeof exports === 'object' && typeof module === 'object')
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module.exports = OGVDemuxerWebMW;
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else if (typeof define === 'function' && define['amd'])
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define([], function() { return OGVDemuxerWebMW; });
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else if (typeof exports === 'object')
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exports["OGVDemuxerWebMW"] = OGVDemuxerWebMW;
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