@diffusionstudio/core/dist/core.umd.js

2D motion graphics and video rendering engine

/*!
 * @diffusionstudio/core v3.8.3
 * (c) 2025 Diffusion Studio Inc.
 * 
 * Licensed under the Diffusion Studio Non-Commercial License.
 * You may NOT use this software for any commercial purposes.
 * 
 * For commercial licensing, visit:
 * https://diffusion.studio
 */

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new Error(`Unhandled codec: ${t}`);let s=i*this._factor;return t==="aac"?s=[96e3,128e3,16e4,192e3].reduce((a,n)=>Math.abs(n-s)<Math.abs(a-s)?n:a):t==="opus"||t==="vorbis"?s=Math.max(6e3,s):t==="mp3"&&(s=[8e3,16e3,24e3,32e3,4e4,48e3,64e3,8e4,96e3,112e3,128e3,16e4,192e3,224e3,256e3,32e4].reduce((a,n)=>Math.abs(n-s)<Math.abs(a-s)?n:a)),Math.round(s/1e3)*1e3}},yn=["avc1","avc3","hev1","hvc1","vp8","vp09","av01"],bn=/^(avc1|avc3)\.[0-9a-fA-F]{6}$/,kn=/^(hev1|hvc1)\.(?:[ABC]?\d+)\.[0-9a-fA-F]{1,8}\.[LH]\d+(?:\.[0-9a-fA-F]{1,2}){0,6}$/,Sn=/^vp09(?:\.\d{2}){3}(?:(?:\.\d{2}){5})?$/,vn=/^av01\.\d\.\d{2}[MH]\.\d{2}(?:\.\d\.\d{3}\.\d{2}\.\d{2}\.\d{2}\.\d)?$/,Ns=t=>{if(!t)throw new TypeError("Video chunk metadata must be provided.");if(typeof t!="object")throw new TypeError("Video chunk metadata must be an object.");if(!t.decoderConfig)throw new TypeError("Video chunk metadata must include a decoder configuration.");if(typeof t.decoderConfig!="object")throw new TypeError("Video chunk metadata decoder configuration must be an object.");if(typeof t.decoderConfig.codec!="string")throw new TypeError("Video chunk metadata decoder configuration must specify a codec string.");if(!yn.some(e=>t.decoderConfig.codec.startsWith(e)))throw new TypeError("Video chunk metadata decoder configuration codec string must be a valid video codec string as specified in the WebCodecs Codec Registry.");if(!Number.isInteger(t.decoderConfig.codedWidth)||t.decoderConfig.codedWidth<=0)throw new TypeError("Video chunk metadata decoder configuration must specify a valid codedWidth (positive integer).");if(!Number.isInteger(t.decoderConfig.codedHeight)||t.decoderConfig.codedHeight<=0)throw new TypeError("Video chunk metadata decoder configuration must specify a valid codedHeight (positive integer).");if(t.decoderConfig.description!==void 0&&!At(t.decoderConfig.description))throw new TypeError("Video chunk metadata decoder configuration description, when defined, must be an ArrayBuffer or an ArrayBuffer view.");if(t.decoderConfig.colorSpace!==void 0){const{colorSpace:e}=t.decoderConfig;if(typeof e!="object")throw new TypeError("Video chunk metadata decoder configuration colorSpace, when provided, must be an object.");const i=Object.keys(Ke);if(e.primaries!=null&&!i.includes(e.primaries))throw new TypeError(`Video chunk metadata decoder configuration colorSpace primaries, when defined, must be one of ${i.join(", ")}.`);const s=Object.keys(Xe);if(e.transfer!=null&&!s.includes(e.transfer))throw new TypeError(`Video chunk metadata decoder configuration colorSpace transfer, when defined, must be one of ${s.join(", ")}.`);const r=Object.keys(Ge);if(e.matrix!=null&&!r.includes(e.matrix))throw new TypeError(`Video chunk metadata decoder configuration colorSpace matrix, when defined, must be one of ${r.join(", ")}.`);if(e.fullRange!=null&&typeof e.fullRange!="boolean")throw new TypeError("Video chunk metadata decoder configuration colorSpace fullRange, when defined, must be a boolean.")}if(t.decoderConfig.codec.startsWith("avc1")||t.decoderConfig.codec.startsWith("avc3")){if(!bn.test(t.decoderConfig.codec))throw new TypeError("Video chunk metadata decoder configuration codec string for AVC must be a valid AVC codec string as specified in Section 3.4 of RFC 6381.")}else if(t.decoderConfig.codec.startsWith("hev1")||t.decoderConfig.codec.startsWith("hvc1")){if(!kn.test(t.decoderConfig.codec))throw new TypeError("Video chunk metadata decoder configuration codec string for HEVC must be a valid HEVC codec string as specified in Section E.3 of ISO 14496-15.")}else if(t.decoderConfig.codec.startsWith("vp8")){if(t.decoderConfig.codec!=="vp8")throw new TypeError(