In mov demuxer, check that nb_streams is valid before using it in read_dac3

Originally committed as revision 25240 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Baptiste Coudurier 2010-09-28 00:33:21 +00:00
parent bd8154d0b3
commit 6d19fd5c26

View File

@ -567,6 +567,8 @@ static int mov_read_dac3(MOVContext *c, ByteIOContext *pb, MOVAtom atom)
AVStream *st;
int ac3info, acmod, lfeon;
if (c->fc->nb_streams < 1)
return 0;
st = c->fc->streams[c->fc->nb_streams-1];
ac3info = get_be24(pb);