From: Stefano Sabatini <stefano.sabatini-lala@poste.it>
Date: Sun, 19 Dec 2010 13:02:05 +0000 (+0000)
Subject: Fix crash in gradfun:end_frame() when inpic == outpic, so it has to be
X-Git-Url: https://git.sesse.net/?a=commitdiff_plain;h=69b8d83ecf5f6deb9ad94bdaa816aa205430d3e9;p=ffmpeg

Fix crash in gradfun:end_frame() when inpic == outpic, so it has to be
freed just once.

Originally committed as revision 26058 to svn://svn.ffmpeg.org/ffmpeg/trunk
---

diff --git a/libavfilter/vf_gradfun.c b/libavfilter/vf_gradfun.c
index 1cbf8d8c2a4..3a400a04eb4 100644
--- a/libavfilter/vf_gradfun.c
+++ b/libavfilter/vf_gradfun.c
@@ -228,7 +228,8 @@ static void end_frame(AVFilterLink *inlink)
     avfilter_draw_slice(outlink, 0, inlink->h, 1);
     avfilter_end_frame(outlink);
     avfilter_unref_buffer(inpic);
-    avfilter_unref_buffer(outpic);
+    if (outpic != inpic)
+        avfilter_unref_buffer(outpic);
 }
 
 AVFilter avfilter_vf_gradfun = {