SUBVP_DRR_MARGIN_US
min_drr_supported_us = drr_frame_us + mall_region_us + SUBVP_DRR_MARGIN_US;
stretched_drr_us = drr_frame_us + mall_region_us + SUBVP_DRR_MARGIN_US;
stretched_drr_us = drr_frame_us + mall_region_us + SUBVP_DRR_MARGIN_US;