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remove string manipulation for chunk header

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This commit is contained in:
Joel Wetzell
2023-09-13 19:56:30 -05:00
parent 6a61a09eed
commit 0af6c4c8da
1 changed files with 2 additions and 3 deletions
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src/encoders/chunk.js
+2 -3
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@@ -5,9 +5,8 @@ module.exports = (id, chunkData, hasSubchunks) => {
const header = Buffer.alloc(4);
header.writeUInt16LE(id);
const chunkLengthBinaryString = chunkData.length.toString(2).padStart(15, '0');
const secondByteBinary = `${hasSubchunks ? '1' : '0'}${chunkLengthBinaryString}`;
header.writeUInt16LE(parseInt(secondByteBinary, 2), 2);
const hasSubChunksBit = (hasSubchunks ? 1 : 0) << 15;
header.writeUInt16LE(hasSubChunksBit + chunkData.length, 2);
return Buffer.concat([header, chunkData]);
};