get_chroma_mv     550 libavcodec/vc1_mc.c         valid_count = get_chroma_mv(mvx, mvy, intra, 0, &tx, &ty);
get_chroma_mv     562 libavcodec/vc1_mc.c         valid_count = get_chroma_mv(mvx, mvy, mv_f, dominant, &tx, &ty);