makes really sure that no undefined behavior can happen

Originally committed as revision 12258 to svn://svn.ffmpeg.org/ffmpeg/trunk
17 years ago · 0b247953c8
parent b85976ba64
commit 0b247953c8
1 changed files with 1 additions and 1 deletions
--- 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);