H265.js

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d.default,o=t===h.default.AFTER_IMDCT?"applyIndependentCoupling":"applyDependentCoupling",s=0;s<i.length;s++){var u=i[s],f=0;if(u.couplingPoint===t)for(var l=0;l<u.coupledCount;l++){var c=u.chSelect[l];u.channelPair[l]===a&&u.idSelect[l]===e.id?(1!==c&&(u[o](f,n),c&&f++),2!==c&&u[o](f++,r)):f+=1+(3===c?1:0)}}}},{key:"advanceDecodedTime",value:function(e){this.decodedTime=this.timestamps[this.timestampIndex].time/this.config.sampleRate,this.timestampIndex++,this.decodedTime+=e}}]),t}();t.default=m,e.exports=t.default},function(e,t,n){"use strict";Object.defineProperty(t,"__esModule",{value:!0}),t.default=void 0;var r=function(){function e(e,t){for(var n=0;n<t.length;n++){var r=t[n];r.enumerable=r.enumerable||!1,r.configurable=!0,"value"in r&&(r.writable=!0),Object.defineProperty(e,r.key,r)}}return function(t,n,r){return n&&e(t.prototype,n),r&&e(t,r),t}}(),i=s(n(8)),a=s(n(7)),o=s(n(27));function s(e){return e&&e.__esModule?e:{default:e}}var u=function(){function 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v=e.read(1),y=u+3-v,m=o[2*v+u],b=c[p],w=h[p],g=0;g<b;g++)w[g]=m[e.read(y)]}}}},{key:"process",value:function(e,t,n){for(var r=Math.min(this.maxBands,e.maxSFB),i=this.lpc,a=this.tmp,o=e.info,s=o.windowCount,u=0;u<s;u++){o.swbCount;for(var f=this.nFilt[u],l=this.length[u],c=this.order[u],d=this.coef[u],h=this.direction[u],p=0;p<f;p++){var v=y,y=Math.max(0,a-l[p]),m=c[p];if(0!==m){for(var b=d[p],w=0;w<m;w++){var g=-b[w];i[w]=g;for(var _=0,k=w+1>>1;_<k;_++){var I=i[_],E=i[w-1-_];i[_]=I+g*E,i[w-1-_]=E+g*I}}var S,T=o.swbOffsets[Math.min(y,r)],O=o.swbOffsets[Math.min(v,r)],U=1;if(!((S=O-T)<=0))if(h[p]&&(U=-1,T=O-1),T+=128*u,n)for(var A=0;A<S;A++,T+=U)for(var B=1;B<=Math.min(A,m);B++)t[T]-=t[T-B*U]*i[B-1];else for(var x=0;x<S;x++,T+=U){a[0]=t[T];for(var C=1;C<=Math.min(x,m);C++)t[T]+=a[C]*i[C-1];for(var P=m;0<P;P--)a[P]=a[P-1]}}}}}}]),e}();t.default=u,e.exports=t.default},function(e,t,n){"use strict";var r,i=(r=n(1))&&r.__esModule?r:{default:r};function a(e){this.ms_used=[],this.left=new i.default(e),this.right=new i.default(e)}a.prototype.decode=function(e,t){var n=this.left,r=this.right,i=this.ms_used;if(this.commonWindow=!!e.read(1)){n.info.decode(e,t,!0),r.info=n.info;var a=e.read(2);switch(this.maskPresent=!!a,a){case 1:for(var o=n.info.groupCount*n.info.maxSFB,s=0;s<o;s++)i[s]=!!e.read(1);break;case 0:case 2:for(var u=!!a,f=0;f<128;f++)i[f]=u;break;default:throw new Error("Reserved ms mask type: "+a)}}else for(var l=0;l<128;l++)i[l]=!1;n.decode(e,t,this.commonWindow),r.decode(e,t,this.commonWindow)},e.exports=a},function(e,t,n){"use strict";Object.defineProperty(t,"__esModule",{value:!0});var r=a(n(1)),i=a(n(10));function a(e){return e&&e.__esModule?e:{default:e}}function o(e){this.ics=new r.default(e),this.channelPair=new Array(8),this.idSelect=new Int32Array(8),this.chSelect=new Int32Array(8),this.gain=new Array(16)}o.BEFORE_TNS=0,o.AFTER_TNS=1,o.AFTER_IMDCT=2;var s=new Float32Array([1.0905077326652577,1.189207115002721,1.4142135623730951,2]);o.prototype={decode:function(e,t){var n=this.channelPair,a=this.idSelect,u=this.chSelect;this.couplingPoint=2*e.read(1),this.coupledCount=e.read(3);for(var f=0,l=0;l<=this.coupledCount;l++)f++,n[l]=e.read(1),a[l]=e.read(4),n[l]?(u[l]=e.read(2),3===u[l]&&f++):u[l]=2;this.couplingPoint+=e.read(1),this.couplingPoint|=this.couplingPoint>>>1;var c=e.read(1),d=s[e.read(2)];this.ics.decode(e,t,!1);for(var h=this.ics.info.groupCount,p=this.ics.info.maxSFB,v=this.ics.bandTypes,y=0;y<f;y++){var m=0,b=1,w=0,g=1;0<y&&(w=(b=this.couplingPoint===o.AFTER_IMDCT?1:e.read(1))?i.default.decodeScaleFactor(e)-60:0,g=Math.pow(d,-w));var _=this.gain[y]=new Float32Array(120);if(this.couplingPoint===o.AFTER_IMDCT)_[0]=g;else for(var k=0;k<h;k++)for(var I=0;I<p;I++)if(v[m]!==r.default.ZERO_BT){if(0===b){var E=i.default.decodeScaleFactor(e)-60;if(0!==E){var S=1;E=w+=E,c||(S-=2*(1&E),E>>>=1),g=Math.pow(d,-E)*S}}_[m++]=g}}},applyIndependentCoupling:function(e,t){for(var n=this.gain[e][0],r=this.ics.data,i=0;i<t.length;i++)t[i]+=n*r[i]},applyDependentCoupling:function(e,t){for(var n=this.ics.info,i=n.swbOffsets,a=n.groupCount,o=n.maxSFB,s=this.ics.bandTypes,u=this.ics.data,f=0,l=0,c=this.gain[e],d=0;d<a;d++){for(var h=n.groupLength[d],p=0;p<o;p++,f++)if(s[f]!==r.default.ZERO_BT)for(var v=c[f],y=0;y<h;y++)for(var m=i[p];m<i[p+1];m++)t[l+128*y+m]+=v*u[l+128*y+m];l+=128*h}}},t.default=o,e.exports=t.default},function(e,t,n){"use strict";Object.defineProperty(t,"__esModule",{value:!0});var r=a(n(1)),i=a(n(33));function a(e){return e&&e.__esModule?e:{default:e}}function o(e,t){if(e)throw new Error("WHA?? No small frames allowed.");this.length=1024,this.shortLength=128,this.mid=(this.length-this.shortLength)/2,this.trans=this.shortLength/2,this.mdctShort=new i.default(2*this.shortLength),this.mdctLong=new i.default(2*this.length),this.overlaps=new Array(t);for(var n=0;n<t;n++)this.overlaps[n]=new Float32Array(this.length);this.buf=new Float32Array(2*this.length)}function s(e){for(var t=new Float32Array(e),n=0;n<e;n++)t[n]=Math.sin((n+.5)*(Math.PI/(2*e)));return t}function u(e,t){for(var n=Math.PI/t,r=new Float32Array(t),i=0,a=new Float32Array(t),o=e*n*(e*n),s=0;s<t;s++){for(var u=s*(t-s)*o,f=1,l=50;0<l;l--)f=f*u/(l*l)+1;i+=f,a[s]=i}i++;for(var c=0;c<t;c++)r[c]=Math.sqrt(a[c]/i);return r}var f=s(1024),l=s(128),c=u(4,1024),d=u(6,128),h=[f,c],p=[l,d];o.prototype.process=function(e,t,n,i){var a=this.overlaps[i],o=e.windowShape[1],s=e.windowShape[0],u=h[o],f=p[o],l=h[s],c=p[s],d=this.length,v=this.shortLength,y=this.mid,m=this.trans,b=this.buf,w=this.mdctLong,g=this.mdctShort;switch(e.windowSequence){case r.default.ONLY_LONG_SEQUENCE:w.process(t,0,b,0);for(var _=0;_<d;_++)n[_]=a[_]+b[_]*l[_];for(var k=0;k<d;k++)a[k]=b[d+k]*u[d-1-k];break;case r.default.LONG_START_SEQUENCE:w.process(t,0,b,0);for(var I=0;I<d;I++)n[I]=a[I]+b[I]*l[I];for(var E=0;E<y;E++)a[E]=b[d+E];for(var S=0;S<v;S++)a[y+S]=b[d+y+S]*f[v-S-1];for(var T=0;T<y;T++)a[y+v+T]=0;break;case r.default.EIGHT_SHORT_SEQUENCE:for(var O=0;O<8;O++)g.process(t,O*v,b,2*O*v);for(var U=0;U<y;U++)n[U]=a[U];for(var A=0;A<v;A++)n[y+A]=a[y+A]+b[A]*c[A],n[y+1*v+A]=a[y+1*v+A]+b[1*v+A]*f[v-1-A]+b[2*v+A]*f[A],n[y+2*v+A]=a[y+2*v+A]+b[3*v+A]*f[v-1-A]+b[4*v+A]*f[A],n[y+3*v+A]=a[y+3*v+A]+b[5*v+A]*f[v-1-A]+b[6*v+A]*f[A],A<m&&(n[y+4*v+A]=a[y+4*v+A]+b[7*v+A]*f[v-1-A]+b[8*v+A]*f[A]);for(var B=0;B<v;B++)m<=B&&(a[y+4*v+B-d]=b[7*v+B]*f[v-1-B]+b[8*v+B]*f[B]),a[y+5*v+B-d]=b[9*v+B]*f[v-1-B]+b[10*v+B]*f[B],a[y+6*v+B-d]=b[11*v+B]*f[v-1-B]+b[12*v+B]*f[B],a[y+7*v+B-d]=b[13*v+B]*f[v-1-B]+b[14*v+B]*f[B],a[y+8*v+B-d]=b[15*v+B]*f[v-1-B];for(var x=0;x<y;x++)a[y+v+x]=0;break;case r.default.LONG_STOP_SEQUENCE:w.process(t,0,b,0);for(var C=0;C<y;C++)n[C]=a[C];for(var P=0;P<v;P++)n[y+P]=a[y+P]+b[y+P]*c[P];for(var M=0;M<y;M++)n[y+v+M]=a[y+v+M]+b[y+v+M];for(var L=0;L<d;L++)a[L]=b[d+L]*u[d-1-L]}},t.default=o,e.exports=t.default},function(e,t,n){"use strict";Object.defineProperty(t,"__esModule",{value:!0});var r,i=function(){function e(e,t){for(var n=0;n<t.length;n++){var r=t[n];r.enumerable=r.enumerable||!1,r.configurable=!0,"value"in r&&(r.writable=!0),Object.defineProperty(e,r.key,r)}}return function(t,n,r){return n&&e(t.prototype,n),r&&e(t,r),t}}(),a=n(34),o=(r=n(35))&&r.__esModule?r:{default:r},s=function(){function e(t){switch(function(t,n){if(!(t instanceof e))throw new TypeError("Cannot call a class as a function")}(this),this.N=t,this.N2=t>>>1,this.N4=t>>>2,this.N8=t>>>3,t){case 2048:this.sincos=a.MDCT_TABLE_2048;break;case 256:this.sincos=a.MDCT_TABLE_256;break;case 1920:this.sincos=a.MDCT_TABLE_1920;break;case 240:this.sincos=a.MDCT_TABLE_240;break;default:throw new Error("unsupported MDCT length: "+t)}this.fft=new o.default(this.N4),this.buf=new Array(this.N4);for(var n=0;n<this.N4;n++)this.buf[n]=new Float32Array(2);this.tmp=new Float32Array(2)}return i(e,[{key:"process",value:function(e,t,n,r){for(var i=this.N2,a=this.N4,o=this.N8,s=this.buf,u=this.tmp,f=this.sincos,l=this.fft,c=0;c<a;c++)s[c][1]=e[t+2*c]*f[c][0]+e[t+i-1-2*c]*f[c][1],s[c][0]=e[t+i-1-2*c]*f[c][0]-e[t+2*c]*f[c][1];l.process(s,!1);for(var d=0;d<a;d++)u[0]=s[d][0],u[1]=s[d][1],s[d][1]=u[1]*f[d][0]+u[0]*f[d][1],s[d][0]=u[0]*f[d][0]-u[1]*f[d][1];for(var 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