From 525782f33ff4be92bb27967c021fc244c92bdebc Mon Sep 17 00:00:00 2001
From: Zdenek Kabelac <kabi@informatics.muni.cz>
Date: Tue, 23 Oct 2001 19:02:55 +0000
Subject: * prevent crash in decoder

Originally committed as revision 179 to svn://svn.ffmpeg.org/ffmpeg/trunk
---
 libavcodec/msmpeg4.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'libavcodec')

diff --git a/libavcodec/msmpeg4.c b/libavcodec/msmpeg4.c
index aa42029989..01e3d5438c 100644
--- a/libavcodec/msmpeg4.c
+++ b/libavcodec/msmpeg4.c
@@ -664,7 +664,7 @@ int msmpeg4_decode_mb(MpegEncContext *s,
 
     /* special slice handling */
     if (s->mb_x == 0) {
-        if ((s->mb_y % s->slice_height) == 0) {
+        if (s->slice_height && (s->mb_y % s->slice_height) == 0) {
             int wrap;
             /* reset DC pred (set previous line to 1024) */
             wrap = 2 * s->mb_width + 2;
-- 
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