Reported-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
CC: [email protected]
---
Alternatively, we could require bits_per_coded_sample to be >= 8
earlier as well, although that could rule out some (purely
hypothetical?) formats with 2 channels with bits_per_coded_sample == 4.
---
libavformat/xwma.c | 8 ++++++++
1 file changed, 8 insertions(+)
diff --git a/libavformat/xwma.c b/libavformat/xwma.c
index 52e423c..f4ff815 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
--
1.7.9.4
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