commit d825860d657ac91c831db74e8860f6f36a4e5635
author Satish Kumar Suman <satish.suman@ittiam.com> Wed Nov 07 11:27:23 2018 +0530
committer ranjit tulabandu <ranjit.tulabandu@ittiam.com> Thu Nov 15 08:59:11 2018 +0000
tree 96ace9f4c0cb7607f9ee6392a9afbeb178fb8a68
parent 1ef3b603ce7462a0cbcbf7b53c8c7a32ccd02baa

Disable transform hash logic for speed >= 4

For speed=4,5 and 8 presets, BD-rate improvement is seen by 0.41%,0.31%,0.47%
(as per AWCY runs) with encode time reduction of 1%,0.75%,-0.25%
(averaged across multiple test cases)

STATS_CHANGED

Change-Id: I9132457f62288db561b2b2df4f01088130c76545

av1/encoder/speed_features.c

diff --git a/av1/encoder/speed_features.c b/av1/encoder/speed_features.c
index 79aff37..ef1c858 100644
--- a/av1/encoder/speed_features.c
+++ b/av1/encoder/speed_features.c
@@ -280,6 +280,9 @@
   }
 
   if (speed >= 4) {
+    sf->use_intra_txb_hash = 0;
+    sf->use_inter_txb_hash = 0;
+    sf->use_mb_rd_hash = 0;
     sf->tx_type_search.fast_intra_tx_type_search = 1;
     sf->tx_type_search.fast_inter_tx_type_search = 1;
     sf->use_square_partition_only_threshold =