--- libheif/plugins/encoder_svt.cc.orig 2026-03-24 10:04:43 UTC
+++ libheif/plugins/encoder_svt.cc
@@ -838,7 +838,19 @@ static heif_error svt_start_sequence_encoding_intern(v
     // svt_config.force_key_frames = true; TODO: this does not seem to work (see all [1])

 #if 1
-#if SVT_AV1_CHECK_VERSION(4, 0, 0)
+#if SVT_AV1_CHECK_VERSION(4, 1, 0)
+    switch (options->gop_structure) {
+      case heif_sequence_gop_structure_intra_only:
+        //svt_config.pred_structure = 1; // LOW_DELAY
+        break;
+      case heif_sequence_gop_structure_lowdelay:
+        //svt_config.pred_structure = 1; // LOW_DELAY
+        break;
+      case heif_sequence_gop_structure_unrestricted:
+        svt_config.pred_structure = PredStructure::RANDOM_ACCESS;
+        break;
+    }
+#elif SVT_AV1_CHECK_VERSION(4, 0, 0)
     switch (options->gop_structure) {
       case heif_sequence_gop_structure_intra_only:
         //svt_config.pred_structure = 1; // LOW_DELAY