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4xm: check that bits per sample is strictly positive 

Avoids a divide by zero.

Reported-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
CC: libav-stable@libav.org
This commit is contained in:
Anton Khirnov 2013-08-24 21:30:46 +02:00
parent df33a58e53
commit a7c1689ded
1 changed files with 1 additions and 1 deletions
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2
libavformat/4xm.c
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@ -146,7 +146,7 @@ static int parse_strk(AVFormatContext *s,
if (fourxm->tracks[track].channels <= 0 ||
fourxm->tracks[track].sample_rate <= 0 ||
fourxm->tracks[track].bits < 0) {
fourxm->tracks[track].bits <= 0) {
av_log(s, AV_LOG_ERROR, "audio header invalid\n");
return AVERROR_INVALIDDATA;
}