Fix T72632: Blender crashes using Jack with AV Sync enabled (repeatable)

1 files changed, 6 insertions, 0 deletions

diff --git a/source/blender/depsgraph/intern/eval/deg_eval_runtime_backup_scene.cc b/source/blender/depsgraph/intern/eval/deg_eval_runtime_backup_scene.cc
index 9f47402790c..36d0138f697 100644
--- a/source/blender/depsgraph/intern/eval/deg_eval_runtime_backup_scene.cc
+++ b/source/blender/depsgraph/intern/eval/deg_eval_runtime_backup_scene.cc
@@ -23,6 +23,8 @@
 
 #include "intern/eval/deg_eval_runtime_backup_scene.h"
 
+#include "BKE_sound.h"
+
 #include "DNA_rigidbody_types.h"
 #include "DNA_scene_types.h"
 
@@ -44,6 +46,8 @@ void SceneBackup::reset()
 
 void SceneBackup::init_from_scene(Scene *scene)
 {
+  BKE_sound_lock_scene(scene);
+
   sound_scene = scene->sound_scene;
   playback_handle = scene->playback_handle;
   sound_scrub_handle = scene->sound_scrub_handle;
@@ -76,6 +80,8 @@ void SceneBackup::restore_to_scene(Scene *scene)
 
   sequencer_backup.restore_to_scene(scene);
 
+  BKE_sound_unlock_scene(scene);
+
   reset();
 }