From a7c1689dedd11689edb30088d467ac03f9b8d1cf Mon Sep 17 00:00:00 2001
From: Anton Khirnov <anton@khirnov.net>
Date: Sat, 24 Aug 2013 21:30:46 +0200
Subject: [PATCH] 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
---
libavformat/4xm.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/libavformat/4xm.c b/libavformat/4xm.c
index 614b1d5f2a6..f003c9c25a4 100644
--- a/libavformat/4xm.c
+++ b/libavformat/4xm.c
@@ -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;
}
--
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