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Fix IIPMetrics jpg detection

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This commit is contained in:
Kyosuke Fujimoto
2024-08-28 23:16:00 +09:00
parent a07d97a9d3
commit b307adb081
1 changed files with 2 additions and 7 deletions
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addons/addon-image/src/IIPMetrics.ts
+2 -7
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@@ -32,13 +32,8 @@ export function imageType(d: Uint8Array): IMetrics {
height: d[20] << 24 | d[21] << 16 | d[22] << 8 | d[23]
};
}
// JPEG: FF D8 FF E0 xx xx JFIF or FF D8 FF E1 xx xx Exif 00 00
if ((d32[0] === 0xE0FFD8FF || d32[0] === 0xE1FFD8FF)
&& (
(d[6] === 0x4a && d[7] === 0x46 && d[8] === 0x49 && d[9] === 0x46)
|| (d[6] === 0x45 && d[7] === 0x78 && d[8] === 0x69 && d[9] === 0x66)
)
) {
// JPEG: FF D8 FF
if (d[0] === 0xFF && d[1] === 0xD8 && d[2] === 0xFF) {
const [width, height] = jpgSize(d);
return { mime: 'image/jpeg', width, height };
}