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authorMichael Niedermayer <michaelni@gmx.at>2003-02-10 22:43:30 +0000
committerMichael Niedermayer <michaelni@gmx.at>2003-02-10 22:43:30 +0000
commitae2d2d6c41c3b55ba06a021a3681a3173502423f (patch)
tree90fc2f4113dd4c174a4e686331ae4b88349491e7 /libavcodec/msmpeg4.c
parentdce778e0ea295db541e43b0850d3a7ef873996cc (diff)
downloadffmpeg-ae2d2d6c41c3b55ba06a021a3681a3173502423f.tar.gz
check for qscale==0 (fixes 1/0 on one corrupted stream)
Originally committed as revision 1574 to svn://svn.ffmpeg.org/ffmpeg/trunk
Diffstat (limited to 'libavcodec/msmpeg4.c')
-rw-r--r--libavcodec/msmpeg4.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/libavcodec/msmpeg4.c b/libavcodec/msmpeg4.c
index 5aee0cf90a..a17890d527 100644
--- a/libavcodec/msmpeg4.c
+++ b/libavcodec/msmpeg4.c
@@ -1228,6 +1228,10 @@ return -1;
}
#endif
s->qscale = get_bits(&s->gb, 5);
+ if(s->qscale==0){
+ fprintf(stderr, "invalid qscale\n");
+ return -1;
+ }
if (s->pict_type == I_TYPE) {
code = get_bits(&s->gb, 5);