commit 8934744f8770eb448cded8f2430657d4f387f257
author Vishnu Teja Manyam <vishnu.teja@ittiam.com> Tue Sep 14 10:27:25 2021 +0530
committer Yunqing Wang <yunqingwang@google.com> Tue Sep 14 16:09:30 2021 +0000
tree d1c883bfa2497f8b095f04e9316d1dbcfd3bf151
parent 1a06677ae3036e6b3a5793a4491393f7c65e628b

rtc: Improve dc_blk_pred_level sf for speed=5 & 6

This CL modifies dc_blk_pred_level sf based on frame type
for speed 5 & 6.

          Instruction Count      BD-Rate Loss(%)
cpu-used    Reduction(%)    avg.psnr    ovr.psnr    ssim
    5         1.978	     0.1265      0.0840    0.1418
    6         1.949          0.1056      0.1277    0.1970

STATS_CHANGED for rt speed 5 & 6

Change-Id: Ib1c52bc7ee754247267c6dcb05cac25054d0aa69

av1/encoder/speed_features.c

diff --git a/av1/encoder/speed_features.c b/av1/encoder/speed_features.c
index db10243..f8a7994 100644
--- a/av1/encoder/speed_features.c
+++ b/av1/encoder/speed_features.c
@@ -1415,7 +1415,7 @@
     sf->lpf_sf.lpf_pick = LPF_PICK_FROM_Q;
     sf->lpf_sf.disable_lr_filter = 1;
 
-    sf->winner_mode_sf.dc_blk_pred_level = 1;
+    sf->winner_mode_sf.dc_blk_pred_level = frame_is_intra_only(cm) ? 0 : 2;
     sf->winner_mode_sf.enable_winner_mode_for_tx_size_srch = 1;
     sf->winner_mode_sf.tx_size_search_level = 1;