ffmpeg | branch: master | Michael Niedermayer <michae...@gmx.at> | Fri May 29 12:06:51 2015 +0200| [e1b0019568430ee80c3bb474829897700ef31f1c] | committer: Michael Niedermayer
avformat/mov: Avoid float usage in yuv_to_rgba() This avoids the possibility for rounding/precision differences between platforms Signed-off-by: Michael Niedermayer <michae...@gmx.at> > http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=e1b0019568430ee80c3bb474829897700ef31f1c --- libavformat/mov.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/libavformat/mov.c b/libavformat/mov.c index 51cdd21..6072934 100644 --- a/libavformat/mov.c +++ b/libavformat/mov.c @@ -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; } _______________________________________________ ffmpeg-cvslog mailing list ffmpeg-cvslog@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-cvslog
