Re: [Mesa-dev] [PATCH 2/2] st/vl: use MPEG-2 chroma cositing

2013-10-07 Thread Christian König
Am 01.10.2013 21:06, schrieb Grigori Goronzy: MPEG-2 and later video standards align the chroma sample position horizontally with the leftmost luma sample position. Add a half-texel offset to the chroma texture sampling coordinate to sample at the this position instead of sampling in the center

[Mesa-dev] [PATCH 2/2] st/vl: use MPEG-2 chroma cositing

2013-10-01 Thread Grigori Goronzy
MPEG-2 and later video standards align the chroma sample position horizontally with the leftmost luma sample position. Add a half-texel offset to the chroma texture sampling coordinate to sample at the this position instead of sampling in the center between the luma texels. This avoids minor color