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43 lines
1.0 KiB
43 lines
1.0 KiB
import {isVideoCodec, isAudioCodec} from '../src/codecs.js';
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const codecAliasMap = {
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mp3: ['mp3', 'mp4a.40.34', 'mp4a.6b'],
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aac: ['aac', 'mp4a.40.2', 'mp4a.40.5', 'mp4a.40.29']
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};
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Object.keys(codecAliasMap).forEach((alias) => {
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// map aliases as keys so that everything is linked to each other
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codecAliasMap[alias].forEach((subalias) => {
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codecAliasMap[subalias] = codecAliasMap[alias];
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});
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});
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export const doesCodecMatch = function(a, b) {
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if (!a) {
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return false;
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}
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if (codecAliasMap[b]) {
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return codecAliasMap[a].indexOf(b) !== -1;
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}
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return a === b;
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};
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export const codecsFromFile = function(file) {
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const codecs = {};
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const extension = file.split('.').pop();
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const codecStr = file.replace(`.${extension}`, '');
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codecStr.split(',').forEach((codec) => {
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if (isVideoCodec(codec)) {
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codecs.video = codec;
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} else if (isAudioCodec(codec)) {
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codecs.audio = codec;
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} else {
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throw new Error(`${codec} is not detected as audio or video`);
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}
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});
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return codecs;
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};
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