commit f8aafa60826017de9ba7a8d1b27910e8cf73c069
author Debargha Mukherjee <debargha@google.com> Mon Sep 21 18:41:57 2020 -0700
committer Debargha Mukherjee <debargha@google.com> Thu Sep 24 00:34:17 2020 +0000
tree 42fb0751d739d51d632b0188606d85a713eb6984
parent 06c7d6cd9b3ab73fd3d8500507d5a684ae401a35

Increase q threshold for faster HD+ encode mode

Reduces encode time for certain types of difficult to
encode high resolution content at low QP values. Improves
encode time long pole.

STATS_CHANGED

hdres2 (49 frames, q mode, cpu-used 0): +0.124% BDRATE

ducks_take_off_1080p50.y4m at q 23, speed 0: about 23% instruction
count reduction.

Change-Id: I23f3cb260fa81071dee88fa75addb0e8d5f352ef
(cherry picked from commit f637ed7c6eb247480a73c0c451d71554d4858399)

av1/encoder/speed_features.c

diff --git a/av1/encoder/speed_features.c b/av1/encoder/speed_features.c
index c4fd92b..8d58cac 100644
--- a/av1/encoder/speed_features.c
+++ b/av1/encoder/speed_features.c
@@ -1436,7 +1436,7 @@
       sf->tx_sf.model_based_prune_tx_search_level = 0;
     }
 
-    if (is_720p_or_larger && cm->quant_params.base_qindex <= 108) {
+    if (is_720p_or_larger && cm->quant_params.base_qindex <= 128) {
       sf->rd_sf.perform_coeff_opt = 2 + is_1080p_or_larger;
       memcpy(winner_mode_params->coeff_opt_dist_threshold,
              coeff_opt_dist_thresholds[sf->rd_sf.perform_coeff_opt],
@@ -1449,7 +1449,7 @@
       sf->inter_sf.skip_repeated_newmv = 1;
       sf->tx_sf.model_based_prune_tx_search_level = 0;
 
-      if (is_1080p_or_larger && cm->quant_params.base_qindex <= 80) {
+      if (is_1080p_or_larger && cm->quant_params.base_qindex <= 108) {
         sf->inter_sf.selective_ref_frame = 2;
         sf->rd_sf.tx_domain_dist_level = boosted ? 1 : 2;
         sf->rd_sf.tx_domain_dist_thres_level = 1;