rl2: Avoid a division by zero

Reported-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
CC: libav-stable@libav.org
Signed-off-by: Martin Storsjö <martin@martin.st>
(cherry picked from commit 3ca14aa596)
Signed-off-by: Luca Barbato <lu_zero@gentoo.org>
(cherry picked from commit ce1dacb435)
This commit is contained in:
Martin Storsjö
2013-09-19 16:57:47 +03:00
committed by Luca Barbato
parent f23b1cc7d9
commit c211ba9b59

View File

@@ -109,6 +109,10 @@ static av_cold int rl2_read_header(AVFormatContext *s,
rate = avio_rl16(pb);
channels = avio_rl16(pb);
def_sound_size = avio_rl16(pb);
if (!channels || channels > 42) {
av_log(s, AV_LOG_ERROR, "Invalid number of channels: %d\n", channels);
return AVERROR_INVALIDDATA;
}
/** setup video stream */
st = avformat_new_stream(s, NULL);