[Bf-blender-cvs] [d266733] master: Fix T43612: VSE crash clearing proxies

[Campbell Barton]

Commit: d266733dadbfe9313728f21f9fe353d8b7c175bf
Author: Campbell Barton
Date:   Thu Feb 12 22:59:04 2015 +1100
Branches: master
https://developer.blender.org/rBd266733dadbfe9313728f21f9fe353d8b7c175bf

Fix T43612: VSE crash clearing proxies

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

M	source/blender/editors/space_sequencer/sequencer_edit.c

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

diff --git a/source/blender/editors/space_sequencer/sequencer_edit.c b/source/blender/editors/space_sequencer/sequencer_edit.c
index 8e5f509..aaf398b 100644
--- a/source/blender/editors/space_sequencer/sequencer_edit.c
+++ b/source/blender/editors/space_sequencer/sequencer_edit.c
@@ -3499,7 +3499,10 @@ static int sequencer_enable_proxies_exec(bContext *C, wmOperator *op)
 		if ((seq->flag & SELECT)) {
 			if (ELEM(seq->type, SEQ_TYPE_MOVIE, SEQ_TYPE_IMAGE, SEQ_TYPE_META, SEQ_TYPE_SCENE, SEQ_TYPE_MULTICAM)) {
 				BKE_sequencer_proxy_set(seq, turnon);
-				
+				if (seq->strip->proxy == NULL) {
+					continue;
+				}
+
 				if (proxy_25)
 					seq->strip->proxy->build_size_flags |= SEQ_PROXY_IMAGE_SIZE_25;
 				else