summaryrefslogtreecommitdiff
path: root/libavformat/xwma.c
diff options
context:
space:
mode:
authorMartin Storsjö <martin@martin.st>2013-09-28 23:13:26 +0300
committerMartin Storsjö <martin@martin.st>2013-09-29 19:56:44 +0300
commitadc09136a4a63b152630abeacb22c56541eacf60 (patch)
treef86d2aa1e8a6191ffe928d2c963d54cff14d18b5 /libavformat/xwma.c
parent8d07258bb6063d0780ce2d39443d6dc6d8eedc5a (diff)
downloadffmpeg-adc09136a4a63b152630abeacb22c56541eacf60.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>
Diffstat (limited to 'libavformat/xwma.c')
-rw-r--r--libavformat/xwma.c8
1 files changed, 8 insertions, 0 deletions
diff --git a/libavformat/xwma.c b/libavformat/xwma.c
index 52e423cef7..f4ff8157f8 100644
--- a/libavformat/xwma.c
+++ b/libavformat/xwma.c
@@ -198,6 +198,14 @@ 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