if (ycbcr_format.full_range) {
offset[0] = 0.0 / (num_levels - 1);
offset[1] = double(num_levels / 2) / (num_levels - 1); // E.g. 128/255.
if (ycbcr_format.full_range) {
offset[0] = 0.0 / (num_levels - 1);
offset[1] = double(num_levels / 2) / (num_levels - 1); // E.g. 128/255.