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@remotion/media-parser

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A pure JavaScript library for parsing video files

37 lines (36 loc) 865 B
"use strict"; Object.defineProperty(exports, "__esModule", { value: true }); exports.getChannelCount = void 0; // https://www.rfc-editor.org/rfc/rfc9639.html#name-channels-bits const getChannelCount = (iterator) => { const bits = iterator.getBits(4); if (bits === 0b0000) { return 1; } if (bits === 0b0001) { return 2; } if (bits === 0b0010) { return 3; } if (bits === 0b0011) { return 4; } if (bits === 0b0100) { return 5; } if (bits === 0b0101) { return 6; } if (bits === 0b0110) { return 7; } if (bits === 0b0111) { return 8; } if (bits === 0b1000 || bits === 0b1001 || bits === 0b1010) { return 2; } throw new Error(`Invalid channel count: ${bits.toString(2)}`); }; exports.getChannelCount = getChannelCount;