ref: 7991241a50f9cf271dcb1063b9fbee0f025eb263
parent: 7ed1d54ab4b75037e90c46135cfe01b7dc47fa4d
author: jackychen <[email protected]>
date: Fri Jun 24 05:39:27 EDT 2016
vp9: Change the scheme for modeling rd for bsize 32x32. For real-time CBR mode, use model_rd_for_sb_y_large instead of model_rd_for_sb_y for 32x32 block. In the former model, transform might be skipped more aggressively in some condtions, which speeds up encoding time with only a little PSNR/SSIM drop on rtc test set. No obvious visual quality regression. PSNR effect on different speed settings: speed 8 rtc: 0.129% overall PSNR drop, 0.137% SSIM drop speed 7 rtc: 0.135% overall PSNR drop, 0.062% SSIM drop speed 5 rtc_derf: 0.105% overall PSNR drop, 0.095% SSIM drop Speed up: gips_motion_WHD, 1mbps: 3.29% faster on speed 7, 2.56% faster on speed8 gips_stat_WHD, 1mbps: 2.17% faster on speed 7, 1.62% faster on speed8 BUG=webm:1250 Change-Id: I818babce5b8549b4b1a7c3978df8591bffde7173
--- a/vp9/encoder/vp9_pickmode.c
+++ b/vp9/encoder/vp9_pickmode.c
@@ -1727,9 +1727,9 @@
vp9_build_inter_predictors_sby(xd, mi_row, mi_col, bsize);
// For large partition blocks, extra testing is done.
- if (cpi->oxcf.rc_mode == VPX_CBR && bsize > BLOCK_32X32 &&
- !cyclic_refresh_segment_id_boosted(xd->mi[0]->segment_id) &&
- cm->base_qindex) {+ if (cpi->oxcf.rc_mode == VPX_CBR && bsize >= BLOCK_32X32 &&
+ !cyclic_refresh_segment_id_boosted(xd->mi[0]->segment_id) &&
+ cm->base_qindex) {model_rd_for_sb_y_large(cpi, bsize, x, xd, &this_rdc.rate,
&this_rdc.dist, &var_y, &sse_y, mi_row, mi_col,
&this_early_term);