diff --git a/libavcodec/mpegvideo_common.h b/libavcodec/mpegvideo_common.h index 73106664f9..24cfa78849 100644 --- a/libavcodec/mpegvideo_common.h +++ b/libavcodec/mpegvideo_common.h @@ -580,11 +580,11 @@ static inline void chroma_4mv_motion(MpegEncContext *s, src_x = s->mb_x * 8 + mx; src_y = s->mb_y * 8 + my; - src_x = av_clip(src_x, -8, s->width/2); - if (src_x == s->width/2) + src_x = av_clip(src_x, -8, (s->width >> 1)); + if (src_x == (s->width >> 1)) dxy &= ~1; - src_y = av_clip(src_y, -8, s->height/2); - if (src_y == s->height/2) + src_y = av_clip(src_y, -8, (s->height >> 1)); + if (src_y == (s->height >> 1)) dxy &= ~2; offset = (src_y * (s->uvlinesize)) + src_x;