shaka-player/dist/shaka-player.transmuxer-worker.js

DASH/EME video player library

/*

 Copyright The Closure Library Authors.
 SPDX-License-Identifier: Apache-2.0
*/
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 @license
 Shaka Player
 Copyright 2016 Google LLC
 SPDX-License-Identifier: Apache-2.0
*/
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ERROR_CHECKING_HDCP_VERSION:6019,MISSING_EME_SUPPORT:6020,LOAD_INTERRUPTED:7E3,OPERATION_ABORTED:7001,NO_VIDEO_ELEMENT:7002,OBJECT_DESTROYED:7003,CONTENT_NOT_LOADED:7004,SRC_EQUALS_PRELOAD_NOT_SUPPORTED:7005,PRELOAD_DESTROYED:7006,QUEUE_INDEX_OUT_OF_BOUNDS:7007,CAST_API_UNAVAILABLE:8E3,NO_CAST_RECEIVERS:8001,ALREADY_CASTING:8002,UNEXPECTED_CAST_ERROR:8003,CAST_CANCELED_BY_USER:8004,CAST_CONNECTION_TIMED_OUT:8005,CAST_RECEIVER_APP_UNAVAILABLE:8006,STORAGE_NOT_SUPPORTED:9E3,INDEXED_DB_ERROR:9001,DEPRECATED_OPERATION_ABORTED:9002,
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Gb.concat=Sb;Gb.toHex=function(a){var b=A(a);if(!Uint8Array.prototype.toHex){a="";b=r(b);for(var c=b.next();!c.done;c=b.next())c=c.value,c=c.toString(16),c.length==1&&(c="0"+c),a+=c;return a}return b.toHex()};Gb.fromHex=function(a){if(!("fromHex"in Uint8Array)){for(var b=a.length/2,c=new Uint8Array(b),d=0;d<b;d++)c[d]=parseInt(a.substr(d*2,2),16);return c}return Uint8Array.fromHex(a)};
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function Jc(a,b){for(var c=b=b===void 0?0:b,d=0;ic(a,b);)a[b+5]>>6&1&&(d+=10),d+=10,d+=kc(a,b+6),jc(a,b+10)&&(d+=10),b+=d;return d>0?a.subarray(c,c+d):new Uint8Array([])}hc.prototype.parse=function(a){return Ic(a)};z("shaka.metadata.Id3Utils",hc);hc.prototype.parse=hc.prototype.parse;hc.getID3Data=Jc;hc.getID3Frames=Ic;for(var Kc=r(fc),Lc=Kc.next();!Lc.done;Lc=Kc.next())ub(Lc.value,function(){return new hc});function Mc(a,b){var c=a[b+1]&1?7:9;return b+c<=a.length&&(a=((a[b+3]&3)<<11|a[b+4]<<3|(a[b+5]&224)>>>5)-c,a>0)?{aa:c,g:a}:null}function Nc(a,b){var c=[96E3,88200,64E3,48E3,44100,32E3,24E3,22050,16E3,12E3,11025,8E3,7350],d=(a[b+2]&60)>>>2;if(d>c.length-1)return null;var e=((a[b+2]&192)>>>6)+1,f=(a[b+2]&1)<<2;f|=(a[b+3]&192)>>>6;return{sampleRate:c[d],channelCount:f,codec:"mp4a.40."+e}}
function Oc(a,b){if(b+1<a.length&&a[b]===255&&(a[b+1]&246)===240){var c=a[b+1]&1?7:9;if(b+c>=a.length)return!1;var d=(a[b+3]&3)<<11|a[b+4]<<3|(a[b+5]&224)>>>5;if(d<=c)return!1;b+=d;return b===a.length||b+1<a.length&&a[b]===255&&(a[b+1]&246)===240}return!1}
function Pc(a,b){switch(a){case "mp4a.40.2":if(b===1)return new Uint8Array([0,200,0,128,35,128]);if(b===2)return new Uint8Array([33,0,73,144,2,25,0,35,128]);if(b===3)return new Uint8Array([0,200,0,128,32,132,1,38,64,8,100,0,142]);if(b===4)return new Uint8Array([0,200,0,128,32,132,1,38,64,8,100,0,128,44,128,8,2,56]);if(b===5)return new Uint8Array([0,200,0,128,32,132,1,38,64,8,100,0,130,48,4,153,0,33,144,2,56]);if(b===6)return new Uint8Array([0,200,0,128,32,132,1,38,64,8,100,0,130,48,4,153,0,33,144,
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function Rc(a,b,c,d){c=a.sb.getOrInsertComputed(c.id+"_"+d.nb,function(){if(b.ka.length===0)throw Error("StreamInfos must have elements");var f=[];for(var g=r(b.ka),h=g.next();!h.done;h=g.next()){var k=f,l=k.push,m=h.value;h=H;var q=m.id+1,n=m.stream.width||0,u=m.stream.height||0;m.type=="audio"&&(u=n=0);var v=m.duration*m.timescale,t=Math.floor(v/(Sc+1));v=Math.floor(v%(Sc+1));var w=Tc.value();J(w,q,20);J(w,t,28);J(w,v,32);Uc(w,n,88);Uc(w,u,92);q=H("tkhd",w);n=m;m=H;t=n.duration*n.timescale;u=Math.floor(t/
(Sc+1));t=Math.floor(t%(Sc+1));v=n.stream.language;v=v.charCodeAt(0)-96<<10|v.charCodeAt(1)-96<<5|v.charCodeAt(2)-96;w=Vc.value();J(w,n.timescale,20);J(w,u,24);J(w,t,28);Uc(w,v,32);u=H("mdhd",w);t=new Uint8Array([]);switch(n.type){case "video":t=Wc.value();break;case "audio":t=Xc.value()}t=H("hdlr",t);a:{switch(n.type){case "video":n=H("minf",H("vmhd",Yc.value()),Zc.value(),$c(n));break a;case "audio":n=H("minf",H("smhd",ad.value()),Zc.value(),$c(n));break a}n=new Uint8Array([])}m=m("mdia",u,t,n);
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u.next())q.push(t.value.initData);q=Sb.apply(Gb,x(q))}else q=new Uint8Array([]);f=k.call(g,dd,h.call(l,f,[m,q]));g=fd.value();k=new Uint8Array(g.byteLength+f.byteLength);k.set(g);k.set(f,g.byteLength);return k});d=a.yb!==c;var e=gd(b);a.yb=c;a.frameIndex++;return{data:e,init:d?c:null}}z("shaka.transmuxer.BaseTransmuxer",G);G.prototype.getOriginalMimeType=G.prototype.getOriginalMimeType;G.prototype.destroy=G.prototype.destroy;var hd=Object.freeze({Za:0,va:0,ta:0,ra:0,sa:2,$a:0}),id=Object.freeze({Za:0,va:0,ta:0,ra:0,sa:2,$a:0}),jd=Object.freeze({Za:0,va:0,ta:0,ra:0,sa:1,$a:1});function dd(a){this.ka=a=a===void 0?[]:a}
function $c(a){var b=H,c="aac";a.codecs.includes("mp3")?c="mp3":a.codecs.includes("ac-3")?c=Ab.value().Eb()?"ec-3":"ac-3":a.codecs.includes("ec-3")?c="ec-3":a.codecs.includes("opus")&&(c="opus");var d=new Uint8Array([]);switch(a.type){case "video":a.codecs.includes("avc1")?d=kd(a,"avc1","avcC"):a.codecs.includes("hvc1")&&(d=kd(a,"hvc1","hvcC"));break;case "audio":if(c=="mp3")a=H(".mp3",ld(a));else if(c=="ac-3"){c=H("dac3",a.j);d="ac-3";var e=new Uint8Array([]);ed(a.stream)&&(e=md(a.stream,a.codecs),
d="enca");a=H(d,ld(a),c,e)}else if(c=="ec-3")c=H("dec3",a.j),d="ec-3",e=new Uint8Array([]),ed(a.stream)&&(e=md(a.stream,a.codecs),d="enca"),a=H(d,ld(a),c,e);else if(c=="opus")c=H("dOps",a.j),d="Opus",e=new Uint8Array([]),ed(a.stream)&&(e=md(a.stream,a.codecs),d="enca"),a=H(d,ld(a),c,e);else{if(a.j.byteLength>0)c=H("esds",a.j);else{c=H;d=a.id+1;e=a.stream.channelsCount||2;var f=a.stream.audioSamplingRate||44100;var g=a.codecs.split(",");if(g.length==1)g=g[0];else{var h=Zb("audio",g);if(h!=null)g=h;
else throw new C(2,4,4025,g);}h=g;var k={96E3:0,88200:1,64E3:2,48E3:3,44100:4,32E3:5,24E3:6,22050:7,16E3:8,12E3:9,11025:10,8E3:11,7350:12};g=k[f];if(h==="mp4a.40.5"||h==="mp4a.40.29")g=k[f*2];f=parseInt(h.split(".").pop(),10);h=Gd.value();Uc(h,d,6);h[26]=f<<3|g>>>1;h[27]=g<<7|e<<3;c=c("esds",h)}d="mp4a";e=new Uint8Array([]);ed(a.stream)&&(e=md(a.stream,a.codecs),d="enca");a=H(d,ld(a),c,e)}d=a}a=H("stsd",Hd.value(),d);return b("stbl",a,Id.value(),Jd.value(),Kd.value(),Ld.value())}
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function md(a,b){var c=H,d=b.split(".")[0];b=Nd("frma",4);J(b,Pd(d),8);d="cenc";var e=a.drmInfos[0];e&&e.encryptionScheme&&(d=e.encryptionScheme);e=Qd.value();J(e,Pd(d),4);d=H("schm",e);e=H;var f=new Uint8Array([0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]);a=r(a.drmInfos);for(var g=a.next();!g.done;g=a.next())if((g=g.value)&&g.keyIds&&g.keyIds.size){g=r(g.keyIds);for(var h=g.next();!h.done;h=g.next()){f=h.value;h=new Uint8Array(f.length/2);for(var k=0;k<f.length/2;k+=1)h[k]=parseInt(String(f[k*2]+f[k*2+1]),
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function gd(a){var b=[],c=0;a=r(a.ka);for(var d=a.next();!d.done;d=a.next()){d=d.value;var e=H,f=d.data?d.data.sequenceNumber:0,g=Nd("mfhd",8);J(g,f,12);f=g;var h,k=d.data?d.data.o:[];g=Nd("sdtp",4+k.length);for(h=0;h<k.length;h++){var l=k[h].flags;g[h+12]=l.sa<<4|l.va<<2|l.ta}var m=g.length+32+20+8+16+8+8;k=H;h=d.id+1;l=Sd.value();J(l,h,4);h=H("tfhd",l);l=d.data?d.data.C:0;var q=Math.floor(l/(Sc+1)),n=Math.floor(l%(Sc+1));l=Nd("tfdt",12);l[8]=1;J(l,q,12);J(l,n,16);var u=m;m=d.data?d.data.o:[];q=
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