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Loosen constraint on format returned by toRgbSample, fix X->A conversio, fix tests

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Vanilagy
2026-05-10 17:31:56 +02:00
parent 1e200edc83
commit 3ae73a7c5e
3 changed files with 152 additions and 53 deletions
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test/browser/video-samples.test.ts
+46
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@@ -287,6 +287,52 @@ test('RGB conversion for ArrayBuffer-backed data', async () => {
expect(Array.from(dest)).toEqual(Array.from(src));
}
{
// RGBX -> RGBA: X (whatever it is) becomes 255 to mean A
const xSrc = new Uint8Array([
10, 20, 30, 0, 40, 50, 60, 77,
70, 80, 90, 128, 100, 110, 120, 200,
]);
using sample = new VideoSample(xSrc.slice(), {
timestamp: 0,
codedWidth: 2,
codedHeight: 2,
format: 'RGBX',
});
const dest = new Uint8Array(2 * 2 * 4);
await sample.copyTo(dest, { format: 'RGBA' });
expect(Array.from(dest)).toEqual([
10, 20, 30, 255, 40, 50, 60, 255,
70, 80, 90, 255, 100, 110, 120, 255,
]);
}
{
// RGBX -> BGRA: R and B swap, X becomes 255 to mean A
const xSrc = new Uint8Array([
10, 20, 30, 0, 40, 50, 60, 77,
70, 80, 90, 128, 100, 110, 120, 200,
]);
using sample = new VideoSample(xSrc.slice(), {
timestamp: 0,
codedWidth: 2,
codedHeight: 2,
format: 'RGBX',
});
const dest = new Uint8Array(2 * 2 * 4);
await sample.copyTo(dest, { format: 'BGRA' });
expect(Array.from(dest)).toEqual([
30, 20, 10, 255, 60, 50, 40, 255,
90, 80, 70, 255, 120, 110, 100, 255,
]);
}
});
test('crop (rect option) for ArrayBuffer-backed data', async () => {