From effe3b9575bf5770b228df37675a976a68e8a5e3 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Tomas=20H=C3=A4rdin?= <tomas.hardin@codemill.se>
Date: Thu, 26 Jan 2012 13:21:34 +0100
Subject: [PATCH] mxfdec: Check for NULL component

This fixes a SIGSEGV with zzuf1.mxf.

Signed-off-by: Diego Biurrun <diego@biurrun.de>
---
 libavformat/mxfdec.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/libavformat/mxfdec.c b/libavformat/mxfdec.c
index f995844be5..7b61168277 100644
--- a/libavformat/mxfdec.c
+++ b/libavformat/mxfdec.c
@@ -1311,7 +1311,7 @@ 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))) {