commit bb0be280781d699f157ee328018d240c4e32e0a4
author Mudassir Galagnath <mudassir.galaganath@ittiam.com> Fri Jan 30 15:16:59 2026 +0530
committer Yunqing Wang <yunqingwang@google.com> Mon Feb 02 11:29:44 2026 -0800
tree 8aa7bdb9cc679bf6ba0782b4d9253d7b751f9aad
parent b8dba4eef3014799ef40232048e32f60a01a07cd

Disable sf 'auto_max_partition_based_on_simple_motion'

This patch disables sf 'auto_max_partition_based_on_simple_motion'
for resolution >=720p at speed=5.

Encoder performance results averaged over all resolutions are as
follows:

     Encoder Instruction           BD-Rate Loss(%)
cpu   Count Reduction(%)  avg.psnr     ssim     vmaf    vmaf_neg
 5          0.87          -0.0045    -0.0010  -0.0053   -0.0037

STATS_CHANGED for speed 5

Change-Id: I04749421c366c16b7c9be1611f96e9a44ce14adb

av1/encoder/speed_features.c

diff --git a/av1/encoder/speed_features.c b/av1/encoder/speed_features.c
index f5ca507..b62cb64 100644
--- a/av1/encoder/speed_features.c
+++ b/av1/encoder/speed_features.c
@@ -996,9 +996,11 @@
       sf->inter_sf.prune_nearmv_using_neighbors = PRUNE_NEARMV_LEVEL2;
     }
 
-    if (is_720p_or_larger)
+    if (is_720p_or_larger) {
       sf->part_sf.ext_part_eval_based_on_cur_best =
           (allow_screen_content_tools || frame_is_intra_only(cm)) ? 0 : 1;
+      sf->part_sf.auto_max_partition_based_on_simple_motion = NOT_IN_USE;
+    }
 
     if (is_480p_or_larger) {
       sf->tpl_sf.reduce_num_frames = 1;
@@ -1013,9 +1015,7 @@
         (boosted || allow_screen_content_tools) ? 0 : 1;
     sf->mv_sf.skip_fullpel_search_using_startmv_refmv = boosted ? 0 : 2;
 
-    if (is_720p_or_larger) {
-      sf->part_sf.auto_max_partition_based_on_simple_motion = NOT_IN_USE;
-    } else if (is_480p_or_larger) {
+    if (is_480p_or_larger && !is_720p_or_larger) {
       sf->part_sf.auto_max_partition_based_on_simple_motion = DIRECT_PRED;
     }