diff options
| -rw-r--r-- | libavcodec/mpegvideo.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/libavcodec/mpegvideo.c b/libavcodec/mpegvideo.c index 1b6aeb804a..95c146429e 100644 --- a/libavcodec/mpegvideo.c +++ b/libavcodec/mpegvideo.c @@ -2640,8 +2640,8 @@ static always_inline void mpeg_motion_lowres(MpegEncContext *s, src_y =(s->mb_y*2*block_s>>field_based) + (motion_y >> (lowres+1)); if (s->out_format == FMT_H263) { - uvsx = sx | ((motion_x & 2)>>1); - uvsy = sy | ((motion_y & 2)>>1); + uvsx = ((motion_x>>1) & s_mask) | (sx&1); + uvsy = ((motion_y>>1) & s_mask) | (sy&1); uvsrc_x = src_x>>1; uvsrc_y = src_y>>1; }else if(s->out_format == FMT_H261){//even chroma mv's are full pel in H261 |