filter_slice_rgba_packed  393 libavfilter/vf_colorchannelmixer.c     return filter_slice_rgba_packed(ctx, arg, jobnr, nb_jobs, 1, 4);
filter_slice_rgba_packed  398 libavfilter/vf_colorchannelmixer.c     return filter_slice_rgba_packed(ctx, arg, jobnr, nb_jobs, 0, 3);
filter_slice_rgba_packed  403 libavfilter/vf_colorchannelmixer.c     return filter_slice_rgba_packed(ctx, arg, jobnr, nb_jobs, -1, 4);