[Bf-blender-cvs] [d086c01645e] master: Fix T59691: Crash when deleting data-block video or audio in a video editor

[Sergey Sharybin]

Commit: d086c01645e4f089a0dfb03b0267a7107affc490
Author: Sergey Sharybin
Date:   Fri Dec 21 16:50:59 2018 +0100
Branches: master
https://developer.blender.org/rBd086c01645e4f089a0dfb03b0267a7107affc490

Fix T59691: Crash when deleting data-block video or audio in a video editor

===================================================================

M	source/blender/blenkernel/intern/sound.c

===================================================================

diff --git a/source/blender/blenkernel/intern/sound.c b/source/blender/blenkernel/intern/sound.c
index 1f1ad4c4f21..829f0e0ab89 100644
--- a/source/blender/blenkernel/intern/sound.c
+++ b/source/blender/blenkernel/intern/sound.c
@@ -532,6 +532,10 @@ void *BKE_sound_scene_add_scene_sound_defaults(struct Scene *scene, struct Seque
 
 void *BKE_sound_add_scene_sound(struct Scene *scene, struct Sequence *sequence, int startframe, int endframe, int frameskip)
 {
+	/* Happens when sequence's sound datablock was removed. */
+	if (sequence->sound == NULL) {
+		return NULL;
+	}
 	const double fps = FPS;
 	void *handle = AUD_Sequence_add(scene->sound_scene, sequence->sound->playback_handle,
 	                               startframe / fps, endframe / fps, frameskip / fps);