Module 858013

function(e,t,n){n.d(t,{A:()=>a}),n(393431),n(532706),n(42231),n(232424),n(949626),n(767709),n(65162),n(321073);class i{_buffer=new Uint8Array(4096);_pageSequenceNumber=0;_offset=0;appendBytes(e){if(this._offset+e.length>this._buffer.length){let t=this._offset+e.length,n=new Uint8Array(Math.pow(2,Math.ceil(Math.log2(Math.max(2*this._buffer.length,t)))));n.set(this._buffer.subarray(0,this._offset)),this._buffer=n}this._buffer.set(e,this._offset),this._offset+=e.length}addPage(e){if(e.segments.length>255)throw Error(`Too many segments: ${e.segments.length} exceeds limit of 255`);for(let[t,n]of e.segments.entries())if(n.length>255)throw Error(`Segment at index ${t} too large (length ${n.length} exceeds 255)`);let t=e.segments.reduce((e,t)=>e+t.length,0),n=27+e.segments.length+t;if(n>65307)throw Error(`Page too large (size ${n} exceeds 65307)`);let i=this._offset,a=0;switch(e.pageType){case 1:a=1;break;case 2:a=2;break;case 4:a=4}this.appendBytes([79,103,103,83,0,a,255&e.granulePosition,e.granulePosition>>8&255,e.granulePosition>>16&255,e.granulePosition>>24&255,0,0,0,0,0,0,0,1,255&this._pageSequenceNumber,this._pageSequenceNumber>>8&255,this._pageSequenceNumber>>16&255,this._pageSequenceNumber>>24&255]);let l=this._offset;for(let t of(this.appendBytes([0,0,0,0,e.segments.length]),this.appendBytes(e.segments.map(e=>e.length)),e.segments))this.appendBytes(t);let o=this._buffer.subarray(i,this._offset).reduce((e,t)=>e<<8>>>0^r[e>>>24^t],0)>>>0;this._buffer.set([255&o,o>>8&255,o>>16&255,o>>24&255],l),this._pageSequenceNumber++}finalize(e){this.addPage({pageType:4,granulePosition:e,segments:[]});let t=this._buffer,n=this._offset;return this._buffer=new Uint8Array(4096),this._offset=0,this._pageSequenceNumber=0,t.subarray(0,n)}}function a(e,t){let n=new Uint8Array([79,112,117,115,72,101,97,100,1,t.channelCount,0,0,255&t.inputSampleRate,t.inputSampleRate>>8&255,t.inputSampleRate>>16&255,t.inputSampleRate>>24&255,255&t.outputGain,t.outputGain>>8&255,t.channelMappingFamily]),a=new Uint8Array([79,112,117,115,84,97,103,115,0,0,0,0,0,0,0,0]),r=new i;r.addPage({pageType:2,granulePosition:0,segments:[n]});let l=0;for(let t of(r.addPage({pageType:0,granulePosition:l,segments:[a]}),e)){let e=function(e){let t=Math.floor(e.length/255),n=[];for(let i=0;i<=t;i++){let a=0===i?0:255*i,r=i===t?e.length:(i+1)*255;n.push(e.slice(a,r))}return n}(t.buffer);l+=t.numSamples,r.addPage({pageType:0,granulePosition:l,segments:e})}return r.finalize(l)}let r=function(){let e=new Uint32Array(256);for(let t=256;t>0;t--){let n=t<<24;for(let e=8;e>0;e--)n=0x80000000&n?0x4c11db7^n<<1:n<<1;e[t]=n}return e}()}