From 0b247953c8c63baba1da93e555baff177cdf2137 Mon Sep 17 00:00:00 2001
From: Aurelien Jacobs <aurel@gnuage.org>
Date: Wed, 27 Feb 2008 00:53:34 +0000
Subject: [PATCH] makes really sure that no undefined behavior can happen

Originally committed as revision 12258 to svn://svn.ffmpeg.org/ffmpeg/trunk
---
 libavformat/matroskaenc.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/libavformat/matroskaenc.c b/libavformat/matroskaenc.c
index 0927908387..00818b54fb 100644
--- a/libavformat/matroskaenc.c
+++ b/libavformat/matroskaenc.c
@@ -149,7 +149,7 @@ static void put_ebml_num(ByteIOContext *pb, uint64_t num, int bytes)
 static void put_ebml_uint(ByteIOContext *pb, unsigned int elementid, uint64_t val)
 {
     int i, bytes = 1;
-    while (val >> bytes*8 && bytes < 8) bytes++;
+    while (bytes < 8 && val >> bytes*8) bytes++;
 
     put_ebml_id(pb, elementid);
     put_ebml_num(pb, bytes, 0);