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swscale/output: Implement dither none for yuv2rgb_write_full()

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Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
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Michael Niedermayer 2021-07-08 12:59:36 +02:00
parent 997f9cfc12
commit 7528532550
1 changed files with 11 additions and 0 deletions
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11
libswscale/output.c
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@ -1912,6 +1912,17 @@ static av_always_inline void yuv2rgb_write_full(SwsContext *c,
int r,g,b;
switch (c->dither) {
case SWS_DITHER_NONE:
if (isrgb8) {
r = av_clip_uintp2(R >> 27, 3);
g = av_clip_uintp2(G >> 27, 3);
b = av_clip_uintp2(B >> 28, 2);
} else {
r = av_clip_uintp2(R >> 29, 1);
g = av_clip_uintp2(G >> 28, 2);
b = av_clip_uintp2(B >> 29, 1);
}
break;
default:
case SWS_DITHER_AUTO:
case SWS_DITHER_ED: