ref: 5c29ee726e622baf6f950dfe980df0d4c116c1a8
parent: b4aa5c9408595e6d618a6bd2718435ee40eeffb7
author: jackychen <[email protected]>
date: Mon Jun 20 13:24:26 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 setting: 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 Change-Id: I902f62def225ea01c145d7e5a93497398b8f5edf
--- a/vp9/encoder/vp9_pickmode.c
+++ b/vp9/encoder/vp9_pickmode.c
@@ -1722,7 +1722,7 @@
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 &&
+ 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,