From 70c171b8b06fa4935f13bdd83d14027ac473dbac Mon Sep 17 00:00:00 2001
From: Thibaut Mattern <tmattern@users.sourceforge.net>
Date: Thu, 16 Dec 2004 19:26:34 +0000
Subject: Do not trust ffmpeg and check length validity. Should fix some
 segfaults.

CVS patchset: 7265
CVS date: 2004/12/16 19:26:34
---
 src/libffmpeg/video_decoder.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/libffmpeg/video_decoder.c b/src/libffmpeg/video_decoder.c
index 3d2b9d456..0bd87a8f4 100644
--- a/src/libffmpeg/video_decoder.c
+++ b/src/libffmpeg/video_decoder.c
@@ -17,7 +17,7 @@
  * along with this program; if not, write to the Free Software
  * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA
  *
- * $Id: video_decoder.c,v 1.38 2004/12/16 13:59:05 mroi Exp $
+ * $Id: video_decoder.c,v 1.39 2004/12/16 19:26:34 tmattern Exp $
  *
  * xine video decoder plugin using ffmpeg
  *
@@ -988,7 +988,7 @@ static void ff_decode_data (video_decoder_t *this_gen, buf_element_t *buf) {
                                         this->size);
           }
         }
-        if (len < 0) {
+        if ((len < 0) || (len > this->size)) {
           xprintf (this->stream->xine, XINE_VERBOSITY_DEBUG, 
                    "ffmpeg_video_dec: error decompressing frame\n");
           this->size = 0;
-- 
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