diff options
| -rw-r--r-- | libavcodec/mpegvideo.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/libavcodec/mpegvideo.c b/libavcodec/mpegvideo.c index 0a0a11ebc9..d210865d29 100644 --- a/libavcodec/mpegvideo.c +++ b/libavcodec/mpegvideo.c @@ -1722,8 +1722,10 @@ static av_always_inline void mpeg_motion_lowres(MpegEncContext *s, if(!CONFIG_GRAY || !(s->flags&CODEC_FLAG_GRAY)){ uvsx= (uvsx << 2) >> lowres; uvsy= (uvsy << 2) >> lowres; - pix_op[op_index](dest_cb, ptr_cb, uvlinesize, h >> s->chroma_y_shift, uvsx, uvsy); - pix_op[op_index](dest_cr, ptr_cr, uvlinesize, h >> s->chroma_y_shift, uvsx, uvsy); + if(h >> s->chroma_y_shift){ + pix_op[op_index](dest_cb, ptr_cb, uvlinesize, h >> s->chroma_y_shift, uvsx, uvsy); + pix_op[op_index](dest_cr, ptr_cr, uvlinesize, h >> s->chroma_y_shift, uvsx, uvsy); + } } //FIXME h261 lowres loop filter } |