spl_is_subsampled_format
if (spl_is_subsampled_format(format)) { /* TODO: 0 = RGB, 1 = YUV */
int vpc_div = spl_is_subsampled_format(spl_in->basic_in.format) ? 2 : 1;
if (spl_is_subsampled_format(spl_in->basic_in.format)) {
if (!spl_is_subsampled_format(pixel_format)) {
if (spl_is_subsampled_format(format))
bool is_subsampled = spl_is_subsampled_format(spl_in->basic_in.format);