Marc Mintel
5397309103
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18 lines
581 B
Plaintext
18 lines
581 B
Plaintext
// lib/types/utils.ts
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var decoder = new TextDecoder();
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var toUTF8String = (input, start = 0, end = input.length) => decoder.decode(input.slice(start, end));
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var getView = (input, offset) => new DataView(input.buffer, input.byteOffset + offset);
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var readUInt16LE = (input, offset = 0) => getView(input, offset).getUint16(0, true);
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// lib/types/gif.ts
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var gifRegexp = /^GIF8[79]a/;
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var GIF = {
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validate: (input) => gifRegexp.test(toUTF8String(input, 0, 6)),
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calculate: (input) => ({
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height: readUInt16LE(input, 8),
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width: readUInt16LE(input, 6)
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})
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};
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export { GIF };
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