From a3cb7f992f88fcfa524bd9cd08b28e09d6718f75 Mon Sep 17 00:00:00 2001 From: Michael Niedermayer Date: Thu, 15 Nov 2012 00:56:33 +0100 Subject: xwma: check bytes_per_sample, fix division by 0. Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind Signed-off-by: Michael Niedermayer --- libavformat/xwma.c | 6 ++++++ 1 file changed, 6 insertions(+) (limited to 'libavformat/xwma.c') diff --git a/libavformat/xwma.c b/libavformat/xwma.c index 04c36296d1..db7d9716ca 100644 --- a/libavformat/xwma.c +++ b/libavformat/xwma.c @@ -200,6 +200,12 @@ 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, "bytes_per_sample is 0\n"); + 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 -- cgit v1.2.3