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avformat/mov: Avoid float usage in yuv_to_rgba() 

This avoids the possibility for rounding/precision differences between platforms

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Michael Niedermayer 2015-05-29 12:06:51 +02:00
parent 4b8b3efb1e
commit e1b0019568
1 changed files with 3 additions and 3 deletions
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6
libavformat/mov.c
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@ -1711,9 +1711,9 @@ static uint32_t yuv_to_rgba(uint32_t ycbcr)
cr = (ycbcr >> 8) & 0xFF;
cb = ycbcr & 0xFF;
b = av_clip_uint8(1.164 * (y - 16) + 2.018 * (cb - 128));
g = av_clip_uint8(1.164 * (y - 16) - 0.813 * (cr - 128) - 0.391 * (cb - 128));
r = av_clip_uint8(1.164 * (y - 16) + 1.596 * (cr - 128));
b = av_clip_uint8((1164 * (y - 16) + 2018 * (cb - 128)) / 1000);
g = av_clip_uint8((1164 * (y - 16) - 813 * (cr - 128) - 391 * (cb - 128)) / 1000);
r = av_clip_uint8((1164 * (y - 16) + 1596 * (cr - 128) ) / 1000);
return (r << 16) | (g << 8) | b;
}