recorder-core
Version:
Recorder库: html5 js 录音 mp3 wav ogg webm amr g711a g711u 格式，支持pc和Android、iOS部分浏览器、Hybrid App（提供Android iOS App源码）、微信，提供ASR语音识别转文字 H5版语音通话聊天示例 DTMF编码解码
6 lines • 147 kB
JavaScript
/*
录音
https://github.com/xiangyuecn/Recorder
src: recorder-core.js,engine/mp3.js,engine/mp3-engine.js
*/
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o=m.Set_engine_mp3_lowpassfreq;null!=o&&(e.engine_mp3_lowpassfreq=o)}},s=function(){return f.G("NeedImport-2",["mp3.js","src/engine/mp3-engine.js"])},d=e&&"function"==typeof Worker;m.prototype.mp3=function(r,i,o){var e=this,_=e.set,l=r.length;if(m.lamejs){if(d){var t=e.mp3_start(_);if(t){if(t.isW)return e.mp3_encode(t,r),void e.mp3_complete(t,i,o,1);e.mp3_stop(t)}}v(_);var f=new m.lamejs.Mp3Encoder(1,_.sampleRate,_.bitRate,{lowpassfreq:_.engine_mp3_lowpassfreq}),c=new Int8Array(5e5),u=0,h=0,p=0,b=function(){try{if(h<l)var e=f.encodeBuffer(r.subarray(h,h+57600));else{p=1;var e=f.flush()}}catch(e){if(console.error(e),!p)try{f.flush()}catch(e){console.error(e)}return void o("MP3 Encoder: "+e.message)}var t=e.length;if(0<t){if(u+t>c.length){var a=new Int8Array(c.length+Math.max(5e5,t));a.set(c.subarray(0,u)),c=a}c.set(e,u),u+=t}if(h<l)h+=57600,setTimeout(b);else{var s=[c.buffer.slice(0,u)],n=g.fn(s,u,l,_.sampleRate);n.lowpassfreq=(f.gfp||{}).lowpassfreq,w(n,_),i(s[0]||new ArrayBuffer(0),"audio/mp3")}};b()}else o(s())},m.BindDestroy("mp3Worker",function(){h&&(m.CLog("mp3Worker Destroy"),h.terminate(),h=null)}),m.prototype.mp3_envCheck=function(e,t){var a="";return t.takeoffEncodeChunk&&(b()||(a=f("yhUs::当前浏览器版本太低，无法实时处理"))),a||m.lamejs||(a=s()),a},m.prototype.mp3_start=function(e){return b(e)};var p={id:0},b=function(t,e){var c,a=function(e){var t=e.data,a=c.wkScope.wk_ctxs,s=c.wkScope.wk_lame,n=c.wkScope.wk_mp3TrimFix,r=a[t.id];if("init"==t.action)a[t.id]={sampleRate:t.sampleRate,bitRate:t.bitRate,takeoff:t.takeoff,pcmSize:0,memory:new Int8Array(5e5),mOffset:0,encObj:new s.Mp3Encoder(1,t.sampleRate,t.bitRate,{lowpassfreq:t.lowpassfreq})};else if(!r)return;var i=function(e){var t=e.length;if(r.mOffset+t>r.memory.length){var a=new Int8Array(r.memory.length+Math.max(5e5,t));a.set(r.memory.subarray(0,r.mOffset)),r.memory=a}r.memory.set(e,r.mOffset),r.mOffset+=t};switch(t.action){case"stop":if(!r.isCp)try{r.encObj.flush()}catch(e){console.error(e)}r.encObj=null,delete a[t.id];break;case"encode":if(r.isCp)break;r.pcmSize+=t.pcm.length;try{var o=r.encObj.encodeBuffer(t.pcm)}catch(e){r.err=e,console.error(e)}o&&0<o.length&&(r.takeoff?u.onmessage({action:"takeoff",id:t.id,chunk:o}):i(o));break;case"complete":r.isCp=1;var _=null;try{var o=r.encObj.flush();_=(r.encObj.gfp||{}).lowpassfreq}catch(e){r.err=e,console.error(e)}if(o&&0<o.length&&(r.takeoff?u.onmessage({action:"takeoff",id:t.id,chunk:o}):i(o)),r.err){u.onmessage({action:t.action,id:t.id,err:"MP3 Encoder: "+r.err.message});break}var l=[r.memory.buffer.slice(0,r.mOffset)],f=n.fn(l,r.mOffset,r.pcmSize,r.sampleRate);f.lowpassfreq=_,u.onmessage({action:t.action,id:t.id,blob:l[0]||new ArrayBuffer(0),meta:f})}},s=function(s){u.onmessage=function(e){var t=e;s&&(t=e.data);var a=p[t.id];a&&("takeoff"==t.action?a.set.takeoffEncodeChunk(new Uint8Array(t.chunk.buffer)):(a.call&&a.call(t),a.call=null))}},n=function(){var e={worker:u,set:t};return t?(e.id=++p.id,p[e.id]=e,v(t),u.postMessage({action:"init",id:e.id,sampleRate:t.sampleRate,bitRate:t.bitRate,lowpassfreq:t.engine_mp3_lowpassfreq,takeoff:!!t.takeoffEncodeChunk,x:new Int16Array(5)})):u.postMessage({x:new Int16Array(5)}),e},u=h;if(e||!d)return m.CLog(f("k9PT::当前环境不支持Web Worker，mp3实时编码器运行在主线程中"),3),u={postMessage:function(e){a({data:e})}},c={wkScope:{wk_ctxs:{},wk_lame:m.lamejs,wk_mp3TrimFix:g}},s(),n();try{if(!u){var r=(a+"").replace(/[\w\$]+\.onmessage/g,"self.postMessage"),i=");wk_lame();self.onmessage="+(r=r.replace(/[\w\$]+\.wkScope/g,"wkScope"));i+=";var wkScope={ wk_ctxs:{},wk_lame:wk_lame",i+=",wk_mp3TrimFix:{rm:"+g.rm+",fn:"+g.fn+"} }";var o=m.lamejs.toString(),_=(window.URL||webkitURL).createObjectURL(new Blob(["var wk_lame=(",o,i],{type:"text/javascript"}));u=new Worker(_),setTimeout(function(){(window.URL||webkitURL).revokeObjectURL(_)},1e4),s(1)}var l=n();return l.isW=1,h=u,l}catch(e){return u&&u.terminate(),console.error(e),b(t,1)}};m.prototype.mp3_stop=function(e){if(e&&e.worker){e.worker.postMessage({action:"stop",id:e.id}),e.worker=null,delete p[e.id];var t=-1;for(var a in p)t++;t&&m.CLog(f("fT6M::mp3 worker剩{1}个未stop",0,t),3)}},m.prototype.mp3_encode=function(e,t){e&&e.worker&&e.worker.postMessage({action:"encode",id:e.id,pcm:t})},m.prototype.mp3_complete=function(t,a,s,n){var r=this;t&&t.worker?(t.call=function(e){n&&r.mp3_stop(t),e.err?s(e.err):(w(e.meta,t.set),a(e.blob,"audio/mp3"))},t.worker.postMessage({action:"complete",id:t.id})):s(f("mPxH::mp3编码器未start"))},m.mp3ReadMeta=function(e,t){var a="undefined"!=typeof window&&window.parseInt||"undefined"!=typeof self&&self.parseInt||parseInt,s=new Uint8Array(e[0]||[]);if(s.length<4)return null;var n=function(e,t){return("0000000"+((t||s)[e]||0).toString(2)).substr(-8)},r=n(0)+n(1),i=n(2)+n(3);if(!/^1{11}/.test(r))return null;var o={"00":2.5,10:2,11:1}[r.substr(11,2)],_={"01":3}[r.substr(13,2)],l={1:[44100,48e3,32e3],2:[22050,24e3,16e3],2.5:[11025,12e3,8e3]}[o];l&&(l=l[a(i.substr(4,2),2)]);var f=[[0,8,16,24,32,40,48,56,64,80,96,112,128,144,160],[0,32,40,48,56,64,80,96,112,128,160,192,224,256,320]][1==o?1:0][a(i.substr(0,4),2)];if(!(o&&_&&f&&l))return null;for(var c=Math.round(8*t/f),u=1==_?384:2==_?1152:1==o?1152:576,h=u/l*1e3,p=Math.floor(u*f/8/l*1e3),b=0,m=0,v=0;v<e.length;v++){var d=e[v];if(m+=d.byteLength,p+3<=m){var g=new Uint8Array(d),w=d.byteLength-(m-(p+3)+1),S=n(w,g);b="1"==S.charAt(6);break}}return b&&p++,{version:o,layer:_,sampleRate:l,bitRate:f,duration:c,size:t,hasPadding:b,frameSize:p,frameDurationFloat:h}};var g={rm:m.mp3ReadMeta,fn:function(e,t,a,s){var n=this.rm(e,t);if(!n)return{size:t,err:"mp3 unknown format"};var r=Math.round(a/s*1e3),i=Math.floor((n.duration-r)/n.frameDurationFloat);if(0<i){var o=i*n.frameSize-(n.hasPadding?1:0);t-=o;for(var _=0,l=[],f=0;f<e.length;f++){var c=e[f];if(o<=0)break;o>=c.byteLength?(o-=c.byteLength,l.push(c),e.splice(f,1),f--):(e[f]=c.slice(o),_=c,o=0)}var u=this.rm(e,t);if(!u){_&&(e[0]=_);for(var f=0;f<l.length;f++)e.splice(f,0,l[f]);n.err="mp3 fix error: 已还原，错误原因不明"}var h=n.trimFix={};h.remove=i,h.removeDuration=Math.round(i*n.frameDurationFloat),h.duration=Math.round(8*t/n.bitRate)}return n}},w=function(e,t){var a="MP3 Info: ";(e.sampleRate&&e.sampleRate!=t.sampleRate||e.bitRate&&e.bitRate!=t.bitRate)&&(m.CLog(a+f("uY9i::和设置的不匹配{1}，已更新成{2}",0,"set:"+t.bitRate+"kbps "+t.sampleRate+"hz","set:"+e.bitRate+"kbps "+e.sampleRate+"hz"),3,t),t.sampleRate=e.sampleRate,t.bitRate=e.bitRate);var s=e.trimFix;s?(a+=f("iMSm::Fix移除{1}帧",0,s.remove)+" "+s.removeDuration+"ms -> "+s.duration+"ms",2<s.remove&&(e.err=(e.err?e.err+", 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Array(e[0]);var t=e[0];e=e.slice(1);for(var a=[],s=0;s<t;s++)a.push(E(e));return a}var we={fill:function(e,t,a,s){if(2==arguments.length)for(var n=0;n<e.length;n++)e[n]=t;else for(var n=t;n<a;n++)e[n]=s}},I={arraycopy:function(e,t,a,s,n){for(var r=t+n;t<r;)a[s++]=e[t++]}},V={};function Se(e){this.ordinal=e}V.SQRT2=1.4142135623730951,V.FAST_LOG10=function(e){return d(e)},V.FAST_LOG10_X=function(e,t){return d(e)*t},Se.short_block_allowed=new Se(0),Se.short_block_coupled=new Se(1),Se.short_block_dispensed=new Se(2),Se.short_block_forced=new Se(3);var D={};function Me(e){this.ordinal=e}D.MAX_VALUE=3.4028235e38,Me.vbr_off=new Me(0),Me.vbr_mt=new Me(1),Me.vbr_rh=new Me(2),Me.vbr_abr=new Me(3),Me.vbr_mtrh=new Me(4),Me.vbr_default=Me.vbr_mtrh;function ye(e){var t=e;this.ordinal=function(){return t}}function A(){var S=null;function v(e){this.bits=0|e}this.qupvt=null,this.setModules=function(e){this.qupvt=e,S=e};var n=[[0,0],[0,0],[0,0],[0,0],[0,0],[0,1],[1,1],[1,1],[1,2],[2,2],[2,3],[2,3],[3,4],[3,4],[3,4],[4,5],[4,5],[4,6],[5,6],[5,6],[5,7],[6,7],[6,7]];function M(e,t,a,s,n,r){var i=.5946/t;for(e>>=1;0!=e--;)n[r++]=i>a[s++]?0:1,n[r++]=i>a[s++]?0:1}function y(e,t,a,s,n,r){var i=(e>>=1)%2;for(e>>=1;0!=e--;){var o,_,l,f,c,u,h,p;o=a[s++]*t,_=a[s++]*t,c=0|o,l=a[s++]*t,u=0|_,f=a[s++]*t,h=0|l,o+=S.adj43[c],p=0|f,_+=S.adj43[u],n[r++]=0|o,l+=S.adj43[h],n[r++]=0|_,f+=S.adj43[p],n[r++]=0|l,n[r++]=0|f}0!=i&&(o=a[s++]*t,_=a[s++]*t,c=0|o,u=0|_,o+=S.adj43[c],_+=S.adj43[u],n[r++]=0|o,n[r++]=0|_)}var o=[1,2,5,7,7,10,10,13,13,13,13,13,13,13,13];function d(e,t,a,s){var n=function(e,t,a){var s=0,n=0;do{var r=e[t++],i=e[t++];s<r&&(s=r),n<i&&(n=i)}while(t<a);s<n&&(s=n);return s}(e,t,a);switch(n){case 0:return n;case 1:return function(e,t,a,s){var n=0,r=L.ht[1].hlen;do{var i=2*e[t+0]+e[t+1];t+=2,n+=r[i]}while(t<a);return s.bits+=n,1}(e,t,a,s);case 2:case 3:return function(e,t,a,s,n){var r,i,o=0,_=L.ht[s].xlen;i=2==s?L.table23:L.table56;do{var l=e[t+0]*_+e[t+1];t+=2,o+=i[l]}while(t<a);(r=65535&o)<(o>>=16)&&(o=r,s++);return n.bits+=o,s}(e,t,a,o[n-1],s);case 4:case 5:case 6:case 7:case 8:case 9:case 10:case 11:case 12:case 13:case 14:case 15:return function(e,t,a,s,n){var r=0,i=0,o=0,_=L.ht[s].xlen,l=L.ht[s].hlen,f=L.ht[s+1].hlen,c=L.ht[s+2].hlen;do{var u=e[t+0]*_+e[t+1];t+=2,r+=l[u],i+=f[u],o+=c[u]}while(t<a);var h=s;i<r&&(r=i,h++);o<r&&(r=o,h=s+2);return n.bits+=r,h}(e,t,a,o[n-1],s);default:var r,i;for(R.IXMAX_VAL<n&&me(),n-=15,r=24;r<32&&!(L.ht[r].linmax>=n);r++);for(i=r-8;i<24&&!(L.ht[i].linmax>=n);i++);return function(e,t,a,s,n,r){var i,o=65536*L.ht[s].xlen+L.ht[n].xlen,_=0;do{var l=e[t++],f=e[t++];0!=l&&(14<l&&(l=15,_+=o),l*=16),0!=f&&(14<f&&(f=15,_+=o),l+=f),_+=L.largetbl[l]}while(t<a);(i=65535&_)<(_>>=16)&&(_=i,s=n);return r.bits+=_,s}(e,t,a,i,r,s)}}function h(e,t,a,s,n,r,i,o){for(var _=t.big_values,l=2;l<Ae.SBMAX_l+1;l++){var f=e.scalefac_band.l[l];if(_<=f)break;var c=n[l-2]+t.count1bits;if(a.part2_3_length<=c)break;var u=new v(c),h=d(s,f,_,u);c=u.bits,a.part2_3_length<=c||(a.assign(t),a.part2_3_length=c,a.region0_count=r[l-2],a.region1_count=l-2-r[l-2],a.table_select[0]=i[l-2],a.table_select[1]=o[l-2],a.table_select[2]=h)}}this.noquant_count_bits=function(e,t,a){var s=t.l3_enc,n=Math.min(576,t.max_nonzero_coeff+2>>1<<1);for(null!=a&&(a.sfb_count1=0);1<n&&0==(s[n-1]|s[n-2]);n-=2);t.count1=n;for(var r=0,i=0;3<n;n-=4){var o;if(1<(2147483647&(s[n-1]|s[n-2]|s[n-3]|s[n-4])))break;o=2*(2*(2*s[n-4]+s[n-3])+s[n-2])+s[n-1],r+=L.t32l[o],i+=L.t33l[o]}var _=r;if(t.count1table_select=0,i<r&&(_=i,t.count1table_select=1),t.count1bits=_,0==(t.big_values=n))return _;if(t.block_type==Ae.SHORT_TYPE)(r=3*e.scalefac_band.s[3])>t.big_values&&(r=t.big_values),i=t.big_values;else if(t.block_type==Ae.NORM_TYPE){if(r=t.region0_count=e.bv_scf[n-2],i=t.region1_count=e.bv_scf[n-1],i=e.scalefac_band.l[r+i+2],r=e.scalefac_band.l[r+1],i<n){var l=new v(_);t.table_select[2]=d(s,i,n,l),_=l.bits}}else t.region0_count=7,t.region1_count=Ae.SBMAX_l-1-7-1,r=e.scalefac_band.l[8],(i=n)<r&&(r=i);if(r=Math.min(r,n),i=Math.min(i,n),0<r){var l=new v(_);t.table_select[0]=d(s,0,r,l),_=l.bits}if(r<i){var l=new v(_);t.table_select[1]=d(s,r,i,l),_=l.bits}if(2==e.use_best_huffman&&me(),null!=a&&t.block_type==Ae.NORM_TYPE){for(var f=0;e.scalefac_band.l[f]<t.big_values;)f++;a.sfb_count1=f}return _},this.count_bits=function(e,t,a,s){var n=a.l3_enc,r=R.IXMAX_VAL/S.IPOW20(a.global_gain);return a.xrpow_max>r?R.LARGE_BITS:(function(e,t,a,s,n){var r,i,o,_=0,l=0,f=0,c=0,u=t,h=0,p=u,b=0,m=e,v=0;o=null!=n&&s.global_gain==n.global_gain,i=s.block_type==Ae.SHORT_TYPE?38:21;for(r=0;r<=i;r++){var d=-1;if((o||s.block_type==Ae.NORM_TYPE)&&(d=s.global_gain-(s.scalefac[r]+(0!=s.preflag?S.pretab[r]:0)<<s.scalefac_scale+1)-8*s.subblock_gain[s.window[r]]),o&&n.step[r]==d)0!=l&&(y(l,a,m,v,p,b),l=0),0!=f&&me();else{var g,w=s.width[r];if(_+s.width[r]>s.max_nonzero_coeff)g=s.max_nonzero_coeff-_+1,we.fill(t,s.max_nonzero_coeff,576,0),(w=g)<0&&(w=0),r=i+1;if(0==l&&0==f&&(p=u,b=h,m=e,v=c),null!=n&&0<n.sfb_count1&&r>=n.sfb_count1&&0<n.step[r]&&d>=n.step[r]?(0!=l&&(y(l,a,m,v,p,b),l=0,p=u,b=h,m=e,v=c),f+=w):(0!=f&&(M(f,a,m,v,p,b),f=0,p=u,b=h,m=e,v=c),l+=w),w<=0){0!=f&&me(),0!=l&&me();break}}r<=i&&(h+=s.width[r],c+=s.width[r],_+=s.width[r])}0!=l&&(y(l,a,m,v,p,b),l=0);0!=f&&me()}(t,n,S.IPOW20(a.global_gain),a,s),0!=(2&e.substep_shaping)&&me(),this.noquant_count_bits(e,a,s))},this.best_huffman_divide=function(e,t){var a=new x,s=t.l3_enc,n=ve(23),r=ve(23),i=ve(23),o=ve(23);if(t.block_type!=Ae.SHORT_TYPE||1!=e.mode_gr){a.assign(t),t.block_type==Ae.NORM_TYPE&&(!function(e,t,a,s,n,r,i){for(var o=t.big_values,_=0;_<=22;_++)s[_]=R.LARGE_BITS;for(var _=0;_<16;_++){var l=e.scalefac_band.l[_+1];if(o<=l)break;var f=0,c=new v(f),u=d(a,0,l,c);f=c.bits;for(var h=0;h<8;h++){var p=e.scalefac_band.l[_+h+2];if(o<=p)break;var b=f;c=new v(b);var m=d(a,l,p,c);b=c.bits,s[_+h]>b&&(s[_+h]=b,n[_+h]=_,r[_+h]=u,i[_+h]=m)}}}(e,t,s,n,r,i,o),h(e,a,t,s,n,r,i,o));var _=a.big_values;if(!(0==_||1<(s[_-2]|s[_-1])||576<(_=t.count1+2))){a.assign(t),a.count1=_;for(var l=0,f=0;_>a.big_values;_-=4){var c=2*(2*(2*s[_-4]+s[_-3])+s[_-2])+s[_-1];l+=L.t32l[c],f+=L.t33l[c]}if(a.big_values=_,a.count1table_select=0,f<l&&(l=f,a.count1table_select=1),a.count1bits=l,a.block_type==Ae.NORM_TYPE)h(e,a,t,s,n,r,i,o);else{if(a.part2_3_length=l,l=e.scalefac_band.l[8],_<l&&(l=_),0<l){var u=new v(a.part2_3_length);a.table_select[0]=d(s,0,l,u),a.part2_3_length=u.bits}if(l<_){var u=new v(a.part2_3_length);a.table_select[1]=d(s,l,_,u),a.part2_3_length=u.bits}t.part2_3_length>a.part2_3_length&&t.assign(a)}}}};var u=[1,1,1,1,8,2,2,2,4,4,4,8,8,8,16,16],p=[1,2,4,8,1,2,4,8,2,4,8,2,4,8,4,8],b=[0,0,0,0,3,1,1,1,2,2,2,3,3,3,4,4],m=[0,1,2,3,0,1,2,3,1,2,3,1,2,3,2,3];A.slen1_tab=b,A.slen2_tab=m,this.best_scalefac_store=function(e,t,a,s){var n,r,i,o,_=s.tt[t][a],l=0;for(n=i=0;n<_.sfbmax;n++){var f=_.width[n];for(i+=f,o=-f;o<0&&0==_.l3_enc[o+i];o++);0==o&&(_.scalefac[n]=l=-2)}if(0==_.scalefac_scale&&0==_.preflag){var c=0;for(n=0;n<_.sfbmax;n++)0<_.scalefac[n]&&(c|=_.scalefac[n]);if(0==(1&c)&&0!=c){for(n=0;n<_.sfbmax;n++)0<_.scalefac[n]&&(_.scalefac[n]>>=1);_.scalefac_scale=l=1}}if(0==_.preflag&&_.block_type!=Ae.SHORT_TYPE&&2==e.mode_gr){for(n=11;n<Ae.SBPSY_l&&!(_.scalefac[n]<S.pretab[n]&&-2!=_.scalefac[n]);n++);if(n==Ae.SBPSY_l){for(n=11;n<Ae.SBPSY_l;n++)0<_.scalefac[n]&&(_.scalefac[n]-=S.pretab[n]);_.preflag=l=1}}for(r=0;r<4;r++)s.scfsi[a][r]=0;for(2==e.mode_gr&&1==t&&s.tt[0][a].block_type!=Ae.SHORT_TYPE&&s.tt[1][a].block_type!=Ae.SHORT_TYPE&&(!function(e,t){for(var a,s=t.tt[1][e],n=t.tt[0][e],r=0;r<L.scfsi_band.length-1;r++){for(a=L.scfsi_band[r];a<L.scfsi_band[r+1]&&!(n.scalefac[a]!=s.scalefac[a]&&0<=s.scalefac[a]);a++);if(a==L.scfsi_band[r+1]){for(a=L.scfsi_band[r];a<L.scfsi_band[r+1];a++)s.scalefac[a]=-1;t.scfsi[e][r]=1}}var i=0,o=0;for(a=0;a<11;a++)-1!=s.scalefac[a]&&(o++,i<s.scalefac[a]&&(i=s.scalefac[a]));for(var _=0,l=0;a<Ae.SBPSY_l;a++)-1!=s.scalefac[a]&&(l++,_<s.scalefac[a]&&(_=s.scalefac[a]));for(var r=0;r<16;r++)if(i<u[r]&&_<p[r]){var f=b[r]*o+m[r]*l;s.part2_length>f&&(s.part2_length=f,s.scalefac_compress=r)}}(a,s),l=0),n=0;n<_.sfbmax;n++)-2==_.scalefac[n]&&(_.scalefac[n]=0);0!=l&&(2==e.mode_gr?this.scale_bitcount(_):this.scale_bitcount_lsf(e,_))};var _=[0,18,36,54,54,36,54,72,54,72,90,72,90,108,108,126],l=[0,18,36,54,51,35,53,71,52,70,88,69,87,105,104,122],f=[0,10,20,30,33,21,31,41,32,42,52,43,53,63,64,74];this.scale_bitcount=function(e){var t,a,s,n=0,r=0,i=e.scalefac;if(e.block_type==Ae.SHORT_TYPE)s=_,0!=e.mixed_block_flag&&(s=l);else if(s=f,0==e.preflag){for(a=11;a<Ae.SBPSY_l&&!(i[a]<S.pretab[a]);a++);if(a==Ae.SBPSY_l)for(e.preflag=1,a=11;a<Ae.SBPSY_l;a++)i[a]-=S.pretab[a]}for(a=0;a<e.sfbdivide;a++)n<i[a]&&(n=i[a]);for(;a<e.sfbmax;a++)r<i[a]&&(r=i[a]);for(e.part2_length=R.LARGE_BITS,t=0;t<16;t++)n<u[t]&&r<p[t]&&e.part2_length>s[t]&&(e.part2_length=s[t],e.scalefac_compress=t);return e.part2_length==R.LARGE_BITS};var g=[[15,15,7,7],[15,15,7,0],[7,3,0,0],[15,31,31,0],[7,7,7,0],[3,3,0,0]];this.scale_bitcount_lsf=function(e,t){var a,s,n,r,i,o,_,l,f=ve(4),c=t.scalefac;for(a=0!=t.preflag?2:0,_=0;_<4;_++)f[_]=0;if(t.block_type==Ae.SHORT_TYPE){s=1;var u=S.nr_of_sfb_block[a][s];for(n=l=0;n<4;n++)for(r=u[n]/3,_=0;_<r;_++,l++)for(i=0;i<3;i++)c[3*l+i]>f[n]&&(f[n]=c[3*l+i])}else{s=0;var u=S.nr_of_sfb_block[a][s];for(n=l=0;n<4;n++)for(r=u[n],_=0;_<r;_++,l++)c[l]>f[n]&&(f[n]=c[l])}for(o=!1,n=0;n<4;n++)f[n]>g[a][n]&&(o=!0);if(!o){var h,p,b,m;for(t.sfb_partition_table=S.nr_of_sfb_block[a][s],n=0;n<4;n++)t.slen[n]=w[f[n]];switch(h=t.slen[0],p=t.slen[1],b=t.slen[2],m=t.slen[3],a){case 0:t.scalefac_compress=(5*h+p<<4)+(b<<2)+m;break;case 1:t.scalefac_compress=400+(5*h+p<<2)+b;break;case 2:t.scalefac_compress=500+3*h+p}}if(!o)for(t.part2_length=0,n=0;n<4;n++)t.part2_length+=t.slen[n]*t.sfb_partition_table[n];return o};var w=[0,1,2,2,3,3,3,3,4,4,4,4,4,4,4,4];this.huffman_init=function(e){for(var t=2;t<=576;t+=2){for(var a,s=0;e.scalefac_band.l[++s]<t;);for(a=n[s][0];e.scalefac_band.l[a+1]>t;)a--;for(a<0&&(a=n[s][0]),e.bv_scf[t-2]=a,a=n[s][1];e.scalefac_band.l[a+e.bv_scf[t-2]+2]>t;)a--;a<0&&(a=n[s][1]),e.bv_scf[t-1]=a}}}function T(){}function y(){this.setModules=function(e,t,a){e,t,a};var s=[0,49345,49537,320,49921,960,640,49729,50689,1728,1920,51009,1280,50625,50305,1088,52225,3264,3456,52545,3840,53185,52865,3648,2560,51905,52097,2880,51457,2496,2176,51265,55297,6336,6528,55617,6912,56257,55937,6720,7680,57025,57217,8e3,56577,7616,7296,56385,5120,54465,54657,5440,55041,6080,5760,54849,53761,4800,4992,54081,4352,53697,53377,4160,61441,12480,12672,61761,13056,62401,62081,12864,13824,63169,63361,14144,62721,13760,13440,62529,15360,64705,64897,15680,65281,16320,16e3,65089,64001,15040,15232,64321,14592,63937,63617,14400,10240,59585,59777,10560,60161,11200,10880,59969,60929,11968,12160,61249,11520,60865,60545,11328,58369,9408,9600,58689,9984,59329,59009,9792,8704,58049,58241,9024,57601,8640,8320,57409,40961,24768,24960,41281,25344,41921,41601,25152,26112,42689,42881,26432,42241,26048,25728,42049,27648,44225,44417,27968,44801,28608,28288,44609,43521,27328,27520,43841,26880,43457,43137,26688,30720,47297,47489,31040,47873,31680,31360,47681,48641,32448,32640,48961,32e3,48577,48257,31808,46081,29888,30080,46401,30464,47041,46721,30272,29184,45761,45953,29504,45313,29120,28800,45121,20480,37057,37249,20800,37633,21440,21120,37441,38401,22208,22400,38721,21760,38337,38017,21568,39937,23744,23936,40257,24320,40897,40577,24128,23040,39617,39809,23360,39169,22976,22656,38977,34817,18624,18816,35137,19200,35777,35457,19008,19968,36545,36737,20288,36097,19904,19584,35905,17408,33985,34177,17728,34561,18368,18048,34369,33281,17088,17280,33601,16640,33217,32897,16448];function r(e,t){var a=t^e;return t=t>>8^s[255&a]}this.updateMusicCRC=function(e,t,a,s){for(var n=0;n<s;++n)e[0]=r(t[a+n],e[0])}}function C(){var i=this,r=null,o=null;this.setModules=function(e,t,a,s){e,t,r=a,o=s};var _=null,l=0,f=0,c=0;function n(e){I.arraycopy(e.header[e.w_ptr].buf,0,_,f,e.sideinfo_len),f+=e.sideinfo_len,l+=8*e.sideinfo_len,e.w_ptr=e.w_ptr+1&O.MAX_HEADER_BUF-1}function v(e,t,a){for(;0<a;){var s;0==c&&(c=8,f++,e.header[e.w_ptr].write_timing==l&&n(e),_[f]=0),s=Math.min(a,c),a-=s,c-=s,_[f]|=t>>a<<c,l+=s}}function u(e,t){var a,s=e.internal_flags;if(8<=t&&(v(s,76,8),t-=8),8<=t&&(v(s,65,8),t-=8),8<=t&&(v(s,77,8),t-=8),8<=t&&(v(s,69,8),t-=8),32<=t){var n=r.getLameShortVersion();if(32<=t)for(a=0;a<n.length&&8<=t;++a)t-=8,v(s,n.charCodeAt(a),8)}for(;1<=t;t-=1)v(s,s.ancillary_flag,1),s.ancillary_flag^=e.disable_reservoir?0:1}function h(e,t,a){for(var s=e.header[e.h_ptr].ptr;0<a;){var n=Math.min(a,8-(7&s));a-=n,e.header[e.h_ptr].buf[s>>3]|=t>>a<<8-(7&s)-n,s+=n}e.header[e.h_ptr].ptr=s}function m(e,t){var a,s=L.ht[t.count1table_select+32],n=0,r=t.big_values,i=t.big_values;for(a=(t.count1-t.big_values)/4;0<a;--a){var o=0,_=0;0!=t.l3_enc[r+0]&&(_+=8,t.xr[i+0]<0&&o++),0!=t.l3_enc[r+1]&&(_+=4,o*=2,t.xr[i+1]<0&&o++),0!=t.l3_enc[r+2]&&(_+=2,o*=2,t.xr[i+2]<0&&o++),0!=t.l3_enc[r+3]&&(_++,o*=2,t.xr[i+3]<0&&o++),r+=4,i+=4,v(e,o+s.table[_],s.hlen[_]),n+=s.hlen[_]}return n}function p(e,t,a,s,n){var r=L.ht[t],i=0;if(0==t)return i;for(var o=a;o<s;o+=2){var _=0,l=0,f=r.xlen,c=r.xlen,u=0,h=n.l3_enc[o],p=n.l3_enc[o+1];if(0!=h&&(n.xr[o]<0&&u++,_--),15<t){if(14<h){var b=h-15;u|=b<<1,l=f,h=15}if(14<p){var m=p-15;u<<=f,u|=m,l+=f,p=15}c=16}0!=p&&(u<<=1,n.xr[o+1]<0&&u++,_--),h=h*c+p,l-=_,_+=r.hlen[h],v(e,r.table[h],_),v(e,u,l),i+=_+l}return i}function d(e,t){var a=3*e.scalefac_band.s[3];a>t.big_values&&(a=t.big_values);var s=p(e,t.table_select[0],0,a,t);return s+=p(e,t.table_select[1],a,t.big_values,t)}function g(e,t){var a,s,n,r;a=t.big_values;var i=t.region0_count+1;return n=e.scalefac_band.l[i],i+=t.region1_count+1,r=e.scalefac_band.l[i],a<n&&(n=a),a<r&&(r=a),s=p(e,t.table_select[0],0,n,t),s+=p(e,t.table_select[1],n,r,t),s+=p(e,t.table_select[2],r,a,t)}function b(){this.total=0}function w(e,t){var a,s,n,r=e.internal_flags;return r.w_ptr,-1==(n=r.h_ptr-1)&&(n=O.MAX_HEADER_BUF-1),a=r.header[n].write_timing-l,0<=(t.total=a)&&me(),s=i.getframebits(e),a+=s,t.total+=s,t.total%8!=0?t.total=1+t.total/8:t.total=t.total/8,t.total+=f+1,a}this.getframebits=function(e){var t,a=e.internal_flags;t=0!=a.bitrate_index?L.bitrate_table[e.version][a.bitrate_index]:e.brate;var s=0|72e3*(e.version+1)*t/e.out_samplerate+a.padding;return 8*s},this.flush_bitstream=function(e){var t,a,s=e.internal_flags,n=s.h_ptr-1;-1==n&&(n=O.MAX_HEADER_BUF-1),t=s.l3_side,(a=w(e,new b))<0||(u(e,a),s.ResvSize=0,t.main_data_begin=0,s.findReplayGain&&me(),s.findPeakSample&&me())},this.format_bitstream=function(e){var t,a=e.internal_flags;t=a.l3_side;var s=this.getframebits(e);u(e,t.resvDrain_pre),function(e,t){var a,s,n,r=e.internal_flags;a=r.l3_side,r.header[r.h_ptr].ptr=0,we.fill(r.header[r.h_ptr].buf,0,r.sideinfo_len,0),e.out_samplerate<16e3?h(r,4094,12):h(r,4095,12);h(r,e.version,1),h(r,1,2),h(r,e.error_protection?0:1,1),h(r,r.bitrate_index,4),h(r,r.samplerate_index,2),h(r,r.padding,1),h(r,e.extension,1),h(r,e.mode.ordinal(),2),h(r,r.mode_ext,2),h(r,e.copyright,1),h(r,e.original,1),h(r,e.emphasis,2),e.error_protection&&h(r,0,16);if(1==e.version){for(h(r,a.main_data_begin,9),2==r.channels_out?h(r,a.private_bits,3):h(r,a.private_bits,5),n=0;n<r.channels_out;n++){var i;for(i=0;i<4;i++)h(r,a.scfsi[n][i],1)}for(s=0;s<2;s++)for(n=0;n<r.channels_out;n++){var o=a.tt[s][n];h(r,o.part2_3_length+o.part2_length,12),h(r,o.big_values/2,9),h(r,o.global_gain,8),h(r,o.scalefac_compress,4),o.block_type!=Ae.NORM_TYPE?(h(r,1,1),h(r,o.block_type,2),h(r,o.mixed_block_flag,1),14==o.table_select[0]&&(o.table_select[0]=16),h(r,o.table_select[0],5),14==o.table_select[1]&&(o.table_select[1]=16),h(r,o.table_select[1],5),h(r,o.subblock_gain[0],3),h(r,o.subblock_gain[1],3),h(r,o.subblock_gain[2],3)):(h(r,0,1),14==o.table_select[0]&&(o.table_select[0]=16),h(r,o.table_select[0],5),14==o.table_select[1]&&(o.table_select[1]=16),h(r,o.table_select[1],5),14==o.table_select[2]&&(o.table_select[2]=16),h(r,o.table_select[2],5),h(r,o.region0_count,4),h(r,o.regi