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4xm: check that bits per sample is strictly positive

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Avoids a divide by zero.

Reported-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
CC: libav-stable@libav.org
(cherry picked from commit a7c1689ded)
Signed-off-by: Luca Barbato <lu_zero@gentoo.org>
This commit is contained in:
Anton Khirnov
2013-08-24 21:30:46 +02:00
committed by Luca Barbato
parent 4cb3efc206
commit f3c7e604fa
1 changed files with 1 additions and 1 deletions
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libavformat/4xm.c
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@@ -154,7 +154,7 @@ static int parse_strk(AVFormatContext *s,
if (fourxm->tracks[track].channels <= 0 || if (fourxm->tracks[track].channels <= 0 ||
fourxm->tracks[track].sample_rate <= 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"); av_log(s, AV_LOG_ERROR, "audio header invalid\n");
return AVERROR_INVALIDDATA; return AVERROR_INVALIDDATA;
} }