From 5b2ad9f520c77ab4b41dfb7086680770350a85ed Mon Sep 17 00:00:00 2001
From: Michael Niedermayer <michaelni@gmx.at>
Date: Mon, 11 Jul 2005 00:43:21 +0000
Subject: [PATCH] segfault fix

Originally committed as revision 4430 to svn://svn.ffmpeg.org/ffmpeg/trunk
---
 libavcodec/imgconvert.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/libavcodec/imgconvert.c b/libavcodec/imgconvert.c
index 1ba723a957..afb66fa85a 100644
--- a/libavcodec/imgconvert.c
+++ b/libavcodec/imgconvert.c
@@ -576,6 +576,8 @@ static void img_copy_plane(uint8_t *dst, int dst_wrap,
                            const uint8_t *src, int src_wrap,
                            int width, int height)
 {
+    if((!dst) || (!src)) 
+        return;
     for(;height > 0; height--) {
         memcpy(dst, src, width);
         dst += dst_wrap;