From 50a6c318b2d00a103297f2aa6256a7404b0f64f8 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Reimar=20D=C3=B6ffinger?= <Reimar.Doeffinger@gmx.de>
Date: Thu, 20 Apr 2006 10:38:15 +0000
Subject: [PATCH] Avoid crash if there is a rtjpeg quant header but no video
 stream in file

Originally committed as revision 5305 to svn://svn.ffmpeg.org/ffmpeg/trunk
---
 libavformat/nuv.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/libavformat/nuv.c b/libavformat/nuv.c
index 04bae8f771..e707854ef3 100644
--- a/libavformat/nuv.c
+++ b/libavformat/nuv.c
@@ -65,7 +65,7 @@ static int get_codec_data(ByteIOContext *pb, AVStream *vst,
                 subtype = get_byte(pb);
                 url_fskip(pb, 6);
                 size = PKTSIZE(get_le32(pb));
-                if (subtype == 'R') {
+                if (vst && subtype == 'R') {
                     vst->codec->extradata_size = size;
                     vst->codec->extradata = av_malloc(size);
                     get_buffer(pb, vst->codec->extradata, size);