diff options
| author | Michael Niedermayer <michaelni@gmx.at> | 2008-09-09 23:39:32 +0000 |
|---|---|---|
| committer | Michael Niedermayer <michaelni@gmx.at> | 2008-09-09 23:39:32 +0000 |
| commit | cbcb408ff6e83cc6fb38a281640df20812a40b85 (patch) | |
| tree | bbb536a15787a0271eaea698bcdf8a3441a747a6 | |
| parent | dfb09bd1d4220d0ad8325747a7b34f25bcdc4b0c (diff) | |
More accurate rounding for 8bit inputs.
Originally committed as revision 27562 to svn://svn.mplayerhq.hu/mplayer/trunk/libswscale
| -rw-r--r-- | libswscale/swscale.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/libswscale/swscale.c b/libswscale/swscale.c index 9dfe1f8e7c..8a9390a3d1 100644 --- a/libswscale/swscale.c +++ b/libswscale/swscale.c @@ -2671,9 +2671,9 @@ int sws_scale(SwsContext *c, uint8_t* src[], int srcStride[], int srcSliceY, g= ((i>>1)&3)*85; r= (i&1 )*255; } - y= av_clip_uint8(((RY*r + GY*g + BY*b)>>RGB2YUV_SHIFT) + 16 ); - u= av_clip_uint8(((RU*r + GU*g + BU*b)>>RGB2YUV_SHIFT) + 128); - v= av_clip_uint8(((RV*r + GV*g + BV*b)>>RGB2YUV_SHIFT) + 128); + y= av_clip_uint8((RY*r + GY*g + BY*b + ( 33<<(RGB2YUV_SHIFT-1)))>>RGB2YUV_SHIFT); + u= av_clip_uint8((RU*r + GU*g + BU*b + (257<<(RGB2YUV_SHIFT-1)))>>RGB2YUV_SHIFT); + v= av_clip_uint8((RV*r + GV*g + BV*b + (257<<(RGB2YUV_SHIFT-1)))>>RGB2YUV_SHIFT); pal[i]= y + (u<<8) + (v<<16); } src2[1]= (uint8_t*)pal; |