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authorPaul B Mahol <onemda@gmail.com>2015-11-21 21:58:24 +0100
committerPaul B Mahol <onemda@gmail.com>2015-11-21 21:58:24 +0100
commit16195aad75d7350c192628d7c72c17fd44d138bd (patch)
treec4b8afdf9e9fa95a286691f83d5e7bcf0153cd06 /libavformat/vpk.c
parent8b1bc2b075dd7ace77dc718c7ef26829f35ec091 (diff)
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avformat/vpk: check samples_per_block size
Signed-off-by: Paul B Mahol <onemda@gmail.com>
Diffstat (limited to 'libavformat/vpk.c')
-rw-r--r--libavformat/vpk.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/libavformat/vpk.c b/libavformat/vpk.c
index ad60aa3..7519049 100644
--- a/libavformat/vpk.c
+++ b/libavformat/vpk.c
@@ -62,6 +62,8 @@ static int vpk_read_header(AVFormatContext *s)
if (st->codec->channels <= 0)
return AVERROR_INVALIDDATA;
samples_per_block = ((st->codec->block_align / st->codec->channels) * 28) / 16;
+ if (samples_per_block <= 0)
+ return AVERROR_INVALIDDATA;
vpk->block_count = (st->duration + (samples_per_block - 1)) / samples_per_block;
vpk->last_block_size = (st->duration % samples_per_block) * 16 * st->codec->channels / 28;
avio_skip(s->pb, offset - avio_tell(s->pb));
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