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avformat/wavdec: make fact chunk parsing for w64 more robust

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Signed-off-by: Paul B Mahol <onemda@gmail.com>
This commit is contained in:
Paul B Mahol 2018-01-10 15:51:27 +01:00
parent 32f85056b3
commit 16ba6a8ad1
1 changed files with 1 additions and 0 deletions
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libavformat/wavdec.c
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@ -822,6 +822,7 @@ static int w64_read_header(AVFormatContext *s)
samples = avio_rl64(pb);
if (samples > 0)
st->duration = samples;
avio_skip(pb, FFALIGN(size, INT64_C(8)) - 32);
} else if (!memcmp(guid, ff_w64_guid_data, 16)) {
wav->data_end = avio_tell(pb) + size - 24;