From 67e0230905ff6f725806d2aa907dad8f7e1f4c7a Mon Sep 17 00:00:00 2001
From: wm4 <wm4@nowhere>
Date: Tue, 11 Nov 2014 17:59:03 +0100
Subject: encode: don't segfault when bailing out due to resolution change

Somehow this code expects lastimg is always set.
---
 video/out/vo_lavc.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/video/out/vo_lavc.c b/video/out/vo_lavc.c
index 706fb53ef7..d5cf263ce2 100644
--- a/video/out/vo_lavc.c
+++ b/video/out/vo_lavc.c
@@ -408,7 +408,7 @@ static void draw_image_unlocked(struct vo *vo, mp_image_t *mpi)
     if (vc->lastipts != AV_NOPTS_VALUE) {
 
         // we have a valid image in lastimg
-        while (vc->lastipts < frameipts) {
+        while (vc->lastimg && vc->lastipts < frameipts) {
             int64_t thisduration = vc->harddup ? 1 : (frameipts - vc->lastipts);
             AVPacket packet;
 
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