diff options
| author | Martin Storsjö <martin@martin.st> | 2013-09-28 23:13:26 +0300 |
|---|---|---|
| committer | Luca Barbato <lu_zero@gentoo.org> | 2013-10-04 03:52:08 +0200 |
| commit | 2ff935a06008fb1959ff633962fbc728762c33cb (patch) | |
| tree | 807bb67212ca6e4d3e2584826c4a8805d5037855 | |
| parent | 2e4c649b3e62fdd158b5a9a0f973d3b186a23e94 (diff) | |
| download | ffmpeg-2ff935a06008fb1959ff633962fbc728762c33cb.tar.gz | |
xwma: Avoid 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 adc09136a4a63b152630abeacb22c56541eacf60)
Signed-off-by: Luca Barbato <lu_zero@gentoo.org>
| -rw-r--r-- | libavformat/xwma.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/libavformat/xwma.c b/libavformat/xwma.c index 46ca0b80f1..5500db81d7 100644 --- a/libavformat/xwma.c +++ b/libavformat/xwma.c @@ -200,6 +200,14 @@ static int xwma_read_header(AVFormatContext *s) /* Estimate the duration from the total number of output bytes. */ const uint64_t total_decoded_bytes = dpds_table[dpds_table_size - 1]; + + if (!bytes_per_sample) { + av_log(s, AV_LOG_ERROR, + "Invalid bits_per_coded_sample %d for %d channels\n", + st->codec->bits_per_coded_sample, st->codec->channels); + return AVERROR_INVALIDDATA; + } + st->duration = total_decoded_bytes / bytes_per_sample; /* Use the dpds data to build a seek table. We can only do this after |