3 lines
113 KiB
JavaScript
3 lines
113 KiB
JavaScript
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/*! @name mux.js @version 7.1.0 @license Apache-2.0 */
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!function(t,e){"object"==typeof exports&&"undefined"!=typeof module?module.exports=e(require("global/window")):"function"==typeof define&&define.amd?define(["global/window"],e):(t="undefined"!=typeof globalThis?globalThis:t||self).muxjs=e(t.window)}(this,(function(t){"use strict";function e(t){return t&&"object"==typeof t&&"default"in t?t:{default:t}}var i=e(t),n=function(){this.init=function(){var t={};this.on=function(e,i){t[e]||(t[e]=[]),t[e]=t[e].concat(i)},this.off=function(e,i){var n;return!!t[e]&&(n=t[e].indexOf(i),t[e]=t[e].slice(),t[e].splice(n,1),n>-1)},this.trigger=function(e){var i,n,a,r;if(i=t[e])if(2===arguments.length)for(a=i.length,n=0;n<a;++n)i[n].call(this,arguments[1]);else{for(r=[],n=arguments.length,n=1;n<arguments.length;++n)r.push(arguments[n]);for(a=i.length,n=0;n<a;++n)i[n].apply(this,r)}},this.dispose=function(){t={}}}};n.prototype.pipe=function(t){return this.on("data",(function(e){t.push(e)})),this.on("done",(function(e){t.flush(e)})),this.on("partialdone",(function(e){t.partialFlush(e)})),this.on("endedtimeline",(function(e){t.endTimeline(e)})),this.on("reset",(function(e){t.reset(e)})),t},n.prototype.push=function(t){this.trigger("data",t)},n.prototype.flush=function(t){this.trigger("done",t)},n.prototype.partialFlush=function(t){this.trigger("partialdone",t)},n.prototype.endTimeline=function(t){this.trigger("endedtimeline",t)},n.prototype.reset=function(t){this.trigger("reset",t)};var a,r,s,o,d,h,p,u=n,l=9e4;d=function(t,e){return a(o(t,e))},h=function(t,e){return r(s(t),e)},p=function(t,e,i){return s(i?t:t-e)};var c,f=l,g=(a=function(t){return t*l},r=function(t,e){return t*e},s=function(t){return t/l}),m=(o=function(t,e){return t/e},d),y=h,b=p,v=f,S=[96e3,88200,64e3,48e3,44100,32e3,24e3,22050,16e3,12e3,11025,8e3,7350];(c=function(t){var e,i=0;c.prototype.init.call(this),this.skipWarn_=function(t,e){this.trigger("log",{level:"warn",message:"adts skiping bytes "+t+" to "+e+" in frame "+i+" outside syncword"})},this.push=function(n){var a,r,s,o,d,h=0;if(t||(i=0),"audio"===n.type){var p;for(e&&e.length?(s=e,(e=new Uint8Array(s.byteLength+n.data.byteLength)).set(s),e.set(n.data,s.byteLength)):e=n.data;h+7<e.length;)if(255===e[h]&&240==(246&e[h+1])){if("number"==typeof p&&(this.skipWarn_(p,h),p=null),r=2*(1&~e[h+1]),a=(3&e[h+3])<<11|e[h+4]<<3|(224&e[h+5])>>5,d=(o=1024*(1+(3&e[h+6])))*v/S[(60&e[h+2])>>>2],e.byteLength-h<a)break;this.trigger("data",{pts:n.pts+i*d,dts:n.dts+i*d,sampleCount:o,audioobjecttype:1+(e[h+2]>>>6&3),channelcount:(1&e[h+2])<<2|(192&e[h+3])>>>6,samplerate:S[(60&e[h+2])>>>2],samplingfrequencyindex:(60&e[h+2])>>>2,samplesize:16,data:e.subarray(h+7+r,h+a)}),i++,h+=a}else"number"!=typeof p&&(p=h),h++;"number"==typeof p&&(this.skipWarn_(p,h),p=null),e=e.subarray(h)}},this.flush=function(){i=0,this.trigger("done")},this.reset=function(){e=void 0,this.trigger("reset")},this.endTimeline=function(){e=void 0,this.trigger("endedtimeline")}}).prototype=new u;var T,w,_,k=c,U=function(t){var e=t.byteLength,i=0,n=0;this.length=function(){return 8*e},this.bitsAvailable=function(){return 8*e+n},this.loadWord=function(){var a=t.byteLength-e,r=new Uint8Array(4),s=Math.min(4,e);if(0===s)throw new Error("no bytes available");r.set(t.subarray(a,a+s)),i=new DataView(r.buffer).getUint32(0),n=8*s,e-=s},this.skipBits=function(t){var a;n>t?(i<<=t,n-=t):(t-=n,t-=8*(a=Math.floor(t/8)),e-=a,this.loadWord(),i<<=t,n-=t)},this.readBits=function(t){var a=Math.min(n,t),r=i>>>32-a;return(n-=a)>0?i<<=a:e>0&&this.loadWord(),(a=t-a)>0?r<<a|this.readBits(a):r},this.skipLeadingZeros=function(){var t;for(t=0;t<n;++t)if(0!=(i&2147483648>>>t))return i<<=t,n-=t,t;return this.loadWord(),t+this.skipLeadingZeros()},this.skipUnsignedExpGolomb=function(){this.skipBits(1+this.skipLeadingZeros())},this.skipExpGolomb=function(){this.skipBits(1+this.skipLeadingZeros())},this.readUnsignedExpGolomb=function(){var t=this.skipLeadingZeros();return this.readBits(t+1)-1},this.readExpGolomb=function(){var t=this.readUnsignedExpGolomb();return 1&t?1+t>>>1:-1*(t>>>1)},this.readBoolean=function(){return 1===this.readBits(1)},this.readUns
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