From d387c44a002ab2cbdb1f2e1a78c4c4bd52b4c247 Mon Sep 17 00:00:00 2001
From: Cheng Chen <chengchen@google.com>
Date: Thu, 17 Sep 2026 17:03:01 -0700
Subject: [PATCH] Enable prune_tx_type_est_rd for 4K at speed 3

The speed feature was enabled at speed 4.

We found its tradeoff is good for A1 at speed 3.

Performance on RA, A1:

Speed   Testset    BD_YUV    EncTime
3        A1        -0.02%    96.79%

STATS_CHANGED for speed 3.

Change-Id: I9c7c247ec04a14d865d7a8b50f8c777e29504ac6
---
 av2/encoder/speed_features.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/av2/encoder/speed_features.c b/av2/encoder/speed_features.c
index 5201a69ae7..2c429cb89f 100644
--- a/av2/encoder/speed_features.c
+++ b/av2/encoder/speed_features.c
@@ -228,6 +228,10 @@ static void set_good_speed_feature_framesize_dependent(
     if (is_480p_or_larger) {
       sf->tx_sf.tx_type_search.prune_tx_type_using_stats = 1;
     }
+
+    if (is_4k_or_larger) {
+      sf->tx_sf.tx_type_search.prune_tx_type_est_rd = 1;
+    }
   }
 
   if (speed >= 4) {