Function generateVp9CodecString

src/codec_data.ts:1156–1174

(codecInfo: Vp9CodecInfo)

const VP9_DEFAULT_SUFFIX = '.01.01.01.01.00';

export const generateVp9CodecString = (codecInfo: Vp9CodecInfo) => {
	const profile = codecInfo.profile.toString().padStart(2, '0');
	const level = codecInfo.level.toString().padStart(2, '0');
	const bitDepth = codecInfo.bitDepth.toString().padStart(2, '0');
	const chromaSubsampling = codecInfo.chromaSubsampling.toString().padStart(2, '0');
	const colourPrimaries = codecInfo.colourPrimaries.toString().padStart(2, '0');
	const transferCharacteristics = codecInfo.transferCharacteristics.toString().padStart(2, '0');
	const matrixCoefficients = codecInfo.matrixCoefficients.toString().padStart(2, '0');
	const videoFullRangeFlag = codecInfo.videoFullRangeFlag.toString().padStart(2, '0');

	let string = `vp09.${profile}.${level}.${bitDepth}.${chromaSubsampling}`;
	string += `.${colourPrimaries}.${transferCharacteristics}.${matrixCoefficients}.${videoFullRangeFlag}`;

	if (string.endsWith(VP9_DEFAULT_SUFFIX)) {
		string = string.slice(0, -VP9_DEFAULT_SUFFIX.length);
	}

	return string;
};

export type Av1CodecInfo = {
	profile: number;