parse_yuv_type    504 libavfilter/vf_scale.c             inv_table = parse_yuv_type(scale->in_color_matrix, av_frame_get_colorspace(in));
parse_yuv_type    506 libavfilter/vf_scale.c             table     = parse_yuv_type(scale->out_color_matrix, AVCOL_SPC_UNSPECIFIED);