@omnimedia/omnitool/x/demo/demo.bundle.min.js

open source video processing tools

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c=a.readAlignedByte(),l=a.readAlignedByte(),d=a.readAlignedByte(),u={configurationVersion:1,avcProfileIndication:c,profileCompatibility:l,avcLevelIndication:d,lengthSizeMinusOne:3,sequenceParameterSets:t,pictureParameterSets:r,chromaFormat:null,bitDepthLumaMinus8:null,bitDepthChromaMinus8:null,sequenceParameterSetExt:null};if(c===100||c===110||c===122||c===144){C(a);let h=C(a);h===3&&a.skipBits(1);let m=C(a),f=C(a);u.chromaFormat=h,u.bitDepthLumaMinus8=m,u.bitDepthChromaMinus8=f,u.sequenceParameterSetExt=s}return u}catch(e){return console.error("Error building AVC Decoder Configuration Record:",e),null}};var Ps=32,Rs=33,Is=34,Un=39,zn=40,pe=n=>n[0]>>1&63,Fs=n=>{try{let e=zt(n),t=e.filter(R=>pe(R)===Ps),r=e.filter(R=>pe(R)===Rs),s=e.filter(R=>pe(R)===Is),i=e.filter(R=>pe(R)===Un||pe(R)===zn);if(r.length===0||s.length===0)return null;let a=r[0],o=new B(_r(a));o.skipBits(16),o.readBits(4);let c=o.readBits(3),l=o.readBits(1),{general_profile_space:d,general_tier_flag:u,general_profile_idc:h,general_profile_compatibility_flags:m,general_constraint_indicator_flags:f,general_level_idc:w}=Mn(o,c);C(o);let g=C(o);g===3&&o.skipBits(1),C(o),C(o),o.readBits(1)&&(C(o),C(o),C(o),C(o));let b=C(o),k=C(o);C(o);let S=o.readBits(1)?0:c;for(let R=S;R<=c;R++)C(o),C(o),C(o);C(o),C(o),C(o),C(o),C(o),C(o),o.readBits(1)&&o.readBits(1)&&Vn(o),o.skipBits(1),o.skipBits(1),o.readBits(1)&&(o.skipBits(4),o.skipBits(4),C(o),C(o),o.skipBits(1));let y=C(o);if(Nn(o,y),o.readBits(1)){let R=C(o);for(let I=0;I<R;I++)C(o),o.skipBits(1)}o.skipBits(1),o.skipBits(1);let x=0;o.readBits(1)&&(x=Hn(o,c));let v=0;if(s.length>0){let R=s[0],I=new B(_r(R));I.skipBits(16),C(I),C(I),I.skipBits(1),I.skipBits(1),I.skipBits(3),I.skipBits(1),I.skipBits(1),C(I),C(I),_e(I),I.skipBits(1),I.skipBits(1),I.readBits(1)&&C(I),_e(I),_e(I),I.skipBits(1),I.skipBits(1),I.skipBits(1),I.skipBits(1);let N=I.readBits(1),ae=I.readBits(1);!N&&!ae?v=0:N&&!ae?v=2:!N&&ae?v=3:v=0}let _=[...t.length?[{arrayCompleteness:1,nalUnitType:Ps,nalUnits:t}]:[],...r.length?[{arrayCompleteness:1,nalUnitType:Rs,nalUnits:r}]:[],...s.length?[{arrayCompleteness:1,nalUnitType:Is,nalUnits:s}]:[],...i.length?[{arrayCompleteness:1,nalUnitType:pe(i[0]),nalUnits:i}]:[]];return{configurationVersion:1,generalProfileSpace:d,generalTierFlag:u,generalProfileIdc:h,generalProfileCompatibilityFlags:m,generalConstraintIndicatorFlags:f,generalLevelIdc:w,minSpatialSegmentationIdc:x,parallelismType:v,chromaFormatIdc:g,bitDepthLumaMinus8:b,bitDepthChromaMinus8:k,avgFrameRate:0,constantFrameRate:0,numTemporalLayers:c+1,temporalIdNested:l,lengthSizeMinusOne:3,arrays:_}}catch(e){return console.error("Error building HEVC Decoder Configuration Record:",e),null}},Mn=(n,e)=>{let t=n.readBits(2),r=n.readBits(1),s=n.readBits(5),i=0;for(let d=0;d<32;d++)i=i<<1|n.readBits(1);let a=new Uint8Array(6);for(let d=0;d<6;d++)a[d]=n.readBits(8);let o=n.readBits(8),c=[],l=[];for(let d=0;d<e;d++)c.push(n.readBits(1)),l.push(n.readBits(1));if(e>0)for(let d=e;d<8;d++)n.skipBits(2);for(let d=0;d<e;d++)c[d]&&n.skipBits(88),l[d]&&n.skipBits(8);return{general_profile_space:t,general_tier_flag:r,general_profile_idc:s,general_profile_compatibility_flags:i,general_constraint_indicator_flags:a,general_level_idc:o}},Vn=n=>{for(let e=0;e<4;e++)for(let t=0;t<(e===3?2:6);t++)if(!n.readBits(1))C(n);else{let s=Math.min(64,1<<4+(e<<1));e>1&&_e(n);for(let i=0;i<s;i++)_e(n)}},Nn=(n,e)=>{let t=[];for(let r=0;r<e;r++)t[r]=Ln(n,r,e,t)},Ln=(n,e,t,r)=>{let s=0,i=0,a=0;if(e!==0&&(i=n.readBits(1)),i){if(e===t){let c=C(n);a=e-(c+1)}else a=e-1;n.readBits(1),C(n);let o=r[a]??0;for(let c=0;c<=o;c++)n.readBits(1)||n.readBits(1);s=r[a]}else{let o=C(n),c=C(n);for(let l=0;l<o;l++)C(n),n.readBits(1);for(let l=0;l<c;l++)C(n),n.readBits(1);s=o+c}return s},Hn=(n,e)=>{if(n.readBits(1)&&n.readBits(8)===255&&(n.readBits(16),n.readBits(16)),n.readBits(1)&&n.readBits(1),n.readBits(1)&&(n.readBits(3),n.readBits(1),n.readBits(1)&&(n.readBits(8),n.readBits(8),n.readBits(8))),n.readBits(1)&&(C(n),C(n)),n.readBits(1),n.readBits(1),n.readBits(1),n.readBits(1)&&(C(n),C(n),C(n),C(n)),n.readBits(1)&&(n.readBits(32),n.readBits(32),n.readBits(1)&&C(n),n.readBits(1)&&Wn(n,!0,e)),n.readBits(1)){n.readBits(1),n.readBits(1),n.readBits(1);let t=C(n);return C(n),C(n),C(n),C(n),t}return 0},Wn=(n,e,t)=>{let r=!1,s=!1,i=!1;e&&(r=n.readBits(1)===1,s=n.readBits(1)===1,(r||s)&&(i=n.readBits(1)===1,i&&(n.readBits(8),n.readBits(5),n.readBits(1),n.readBits(5)),n.readBits(4),n.readBits(4),i&&n.readBits(4),n.readBits(5),n.readBits(5),n.readBits(5)));for(let a=0;a<=t;a++){let o=n.readBits(1)===1,c=!0;o||(c=n.readBits(1)===1);let l=!1;c?C(n):l=n.readBits(1)===1;let d=1;l||(d=C(n)+1),r&&Es(n,d,i),s&&Es(n,d,i)}},Es=(n,e,t)=>{for(let r=0;r<e;r++)C(n),C(n),t&&(C(n),C(n)),n.readBits(1)};var Mt=n=>{let e=new B(n);if(e.readBits(2)!==2)return null;let r=e.readBits(1),i=(e.readBits(1)<<1)+r;if(i===3&&e.skipBits(1),e.readBits(1)===1||e.readBits(1)!==0||(e.skipBits(2),e.readBits(24)!==4817730))return null;let l=8;i>=2&&(l=e.readBits(1)?12:10);let d=e.readBits(3),u=0,h=0;if(d!==7)if(h=e.readBits(1),i===1||i===3){let v=e.readBits(1),_=e.readBits(1);u=!v&&!_?3:v&&!_?2:1,e.skipBits(1)}else u=1;else u=3,h=1;let m=e.readBits(16),f=e.readBits(16),w=m+1,g=f+1,b=w*g,k=U(he).level;for(let x of he)if(b<=x.maxPictureSize){k=x.level;break}return{profile:i,level:k,bitDepth:l,chromaSubsampling:u,videoFullRangeFlag:h,colourPrimaries:d===2?1:d===1?6:2,transferCharacteristics:d===2?1:d===1?6:2,matrixCoefficients:d===7?0:d===2?1:d===1?6:2}};function*Ds(n){let e=new B(n),t=()=>{let r=0;for(let s=0;s<8;s++){let i=e.readAlignedByte();if(r|=(i&127)<<s*7,!(i&128))break;if(s===7&&i&128)return null}return 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h||(s===0?(m=1,f=1):s===1?(m=0,f=0):u===12&&(m=r.readBits(1),m&&(f=r.readBits(1))),m&&f&&(w=r.readBits(2))),{profile:s,level:o,tier:c,bitDepth:u,monochrome:h,chromaSubsamplingX:m,chromaSubsamplingY:f,chromaSamplePosition:w}}return null},As=n=>{let e=G(n),t=e.getUint8(9),r=e.getUint16(10,!0),s=e.getUint32(12,!0),i=e.getInt16(16,!0),a=e.getUint8(18),o=null;return a&&(o=n.subarray(19,21+t)),{outputChannelCount:t,preSkip:r,inputSampleRate:s,outputGain:i,channelMappingFamily:a,channelMappingTable:o}},jn=[480,960,1920,2880,480,960,1920,2880,480,960,1920,2880,480,960,480,960,120,240,480,960,120,240,480,960,120,240,480,960,120,240,480,960],Bs=n=>{let e=n[0]>>3;return{durationInSamples:jn[e]}},Os=n=>{if(n.length<7)throw new Error("Setup header is too short.");if(n[0]!==5)throw new Error("Wrong packet type in Setup header.");if(String.fromCharCode(...n.slice(1,7))!=="vorbis")throw new Error("Invalid packet signature in Setup header.");let t=n.length,r=new Uint8Array(t);for(let 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$n=[T.EBML,T.Segment],qn=[T.EBMLMaxIDLength,T.EBMLMaxSizeLength,T.SeekHead,T.Info,T.Cluster,T.Tracks,T.Cues,T.Attachments,T.Chapters,T.Tags],Nt=[...$n,...qn];var Ms=8,Lt=2,ye=4+Ms,we=class{constructor(e){this.reader=e,this.pos=0}readBytes(e){let{view:t,offset:r}=this.reader.getViewAndOffset(this.pos,this.pos+e);return this.pos+=e,new Uint8Array(t.buffer,r,e)}readU8(){let{view:e,offset:t}=this.reader.getViewAndOffset(this.pos,this.pos+1);return this.pos++,e.getUint8(t)}readS16(){let{view:e,offset:t}=this.reader.getViewAndOffset(this.pos,this.pos+2);return this.pos+=2,e.getInt16(t,!1)}readVarIntSize(){let{view:e,offset:t}=this.reader.getViewAndOffset(this.pos,this.pos+1),r=e.getUint8(t),s=1,i=128;for(;(r&i)===0&&s<8;)s++,i>>=1;return s}readVarInt(){let{view:e,offset:t}=this.reader.getViewAndOffset(this.pos,this.pos+1),r=e.getUint8(t),s=1,i=128;for(;(r&i)===0&&s<Ms;)s++,i>>=1;let{view:a,offset:o}=this.reader.getViewAndOffset(this.pos,this.pos+s),c=r&i-1;for(let 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e=this.readElementId(),t=this.readElementSize();return{id:e,size:t}}async searchForNextElementId(e,t){let s=new Set(e);for(;this.pos<t-ye;){this.reader.rangeIsLoaded(this.pos,this.pos+ye)||await this.reader.loadRange(this.pos,Math.min(this.pos+1048576,t));let i=this.pos,a=this.readElementHeader();if(s.has(a.id))return i;be(a.size),this.pos+=a.size}return null}},$={avc:"V_MPEG4/ISO/AVC",hevc:"V_MPEGH/ISO/HEVC",vp8:"V_VP8",vp9:"V_VP9",av1:"V_AV1",aac:"A_AAC",mp3:"A_MPEG/L3",opus:"A_OPUS",vorbis:"A_VORBIS",flac:"A_FLAC","pcm-u8":"A_PCM/INT/LIT","pcm-s16":"A_PCM/INT/LIT","pcm-s16be":"A_PCM/INT/BIG","pcm-s24":"A_PCM/INT/LIT","pcm-s24be":"A_PCM/INT/BIG","pcm-s32":"A_PCM/INT/LIT","pcm-s32be":"A_PCM/INT/BIG","pcm-f32":"A_PCM/FLOAT/IEEE","pcm-f64":"A_PCM/FLOAT/IEEE",webvtt:"S_TEXT/WEBVTT"};function be(n){if(n===null)throw new Error("Undefined element size is used in a place where it is not supported.")}var Vs=n=>{let 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t=this.readU32(),r=t&255,s=t>>>8&255,i=t>>>16&255,a=t>>>24&255,o=79;if(!(r!==o&&s!==o&&i!==o&&a!==o)){if(this.pos-=4,t===Fr)return!0;this.pos+=1}}return!1}};var H=class{constructor(e){this.input=e}};var z=new Uint8Array(0),A=class n{constructor(e,t,r,s,i=-1,a){if(this.data=e,this.type=t,this.timestamp=r,this.duration=s,this.sequenceNumber=i,e===z&&a===void 0)throw new Error("Internal error: byteLength must be explicitly provided when constructing metadata-only packets.");if(a===void 0&&(a=e.byteLength),!(e instanceof Uint8Array))throw new TypeError("data must be a Uint8Array.");if(t!=="key"&&t!=="delta")throw new TypeError('type must be either "key" or "delta".');if(!Number.isFinite(r))throw new TypeError("timestamp must be a number.");if(!Number.isFinite(s)||s<0)throw new TypeError("duration must be a non-negative number.");if(!Number.isFinite(i))throw new TypeError("sequenceNumber must be a number.");if(!Number.isInteger(a)||a<0)throw new TypeError("byteLength must be a non-negative 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