From ebb82604b0b14c79917466107c39592a20e5b0c5 Mon Sep 17 00:00:00 2001
From: Art Clarke <aclarke@vlideshow.com>
Date: Wed, 15 Jul 2009 10:00:16 +0000
Subject: [PATCH] Only free '*ic_ptr' when a caller has pre-allocated a context
 and passed it in (wherein av_open_input_file assumes memory ownership). Patch
 by Art Clarke a<surname> xuggle com

Originally committed as revision 19436 to svn://svn.ffmpeg.org/ffmpeg/trunk
---
 libavformat/utils.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/libavformat/utils.c b/libavformat/utils.c
index 3fce3fa87b..0c1a50d816 100644
--- a/libavformat/utils.c
+++ b/libavformat/utils.c
@@ -499,7 +499,9 @@ int av_open_input_file(AVFormatContext **ic_ptr, const char *filename,
     av_freep(&pd->buf);
     if (pb)
         url_fclose(pb);
-    av_freep(ic_ptr);
+    if (ap && ap->prealloced_context)
+        av_free(*ic_ptr);
+    *ic_ptr = NULL;
     return err;
 
 }