From 5e5e69d0787ae4939f3f8e8d6c0342310eda28ee Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Tomas=20H=C3=A4rdin?= <tomas.hardin@codemill.se>
Date: Tue, 20 Dec 2011 17:38:27 +0100
Subject: [PATCH] mxfdec: Check for NULL component

This fixes SIGSEGV with zzuf1.mxf
---
 libavformat/mxfdec.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/libavformat/mxfdec.c b/libavformat/mxfdec.c
index b6a63c90a2..59c8b4016b 100644
--- a/libavformat/mxfdec.c
+++ b/libavformat/mxfdec.c
@@ -1276,7 +1276,7 @@ static int mxf_parse_structural_metadata(MXFContext *mxf)
                 break;
             }
         }
-        if (!source_track)
+        if (!source_track || !component)
             continue;
 
         if (!(source_track->sequence = mxf_resolve_strong_ref(mxf, &source_track->sequence_ref, Sequence))) {