From 34a14decb6732c8abf01e6135a9a1dd55b58e33a Mon Sep 17 00:00:00 2001
From: Brad Smith <brad@comstyle.com>
Date: Sat, 24 Jan 2026 22:05:01 -0500
Subject: [PATCH] fix(svt): Fix building with SVT-AV1 4.0

---
 src/codec_svt.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/codec_svt.c b/src/codec_svt.c
index 3c7751333a..e81b30cf3c 100644
--- a/src/codec_svt.c
+++ b/src/codec_svt.c
@@ -170,7 +170,11 @@ static avifResult svtCodecEncodeImage(avifCodec * codec,
 #else
         svt_config->logical_processors = encoder->maxThreads;
 #endif
+#if SVT_AV1_CHECK_VERSION(4, 0, 0)
+        svt_config->aq_mode = 2;
+#else
         svt_config->enable_adaptive_quantization = 2;
+#endif
         // disable 2-pass
 #if SVT_AV1_CHECK_VERSION(0, 9, 0)
         svt_config->rc_stats_buffer = (SvtAv1FixedBuf) { NULL, 0 };