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avformat/dsfdec: Change order of operations in bitrate computation

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Fixes: signed integer overflow: 538976288 * 67372036 cannot be represented in type 'int'
Fixes: 29102/clusterfuzz-testcase-minimized-ffmpeg_dem_DSF_fuzzer-6751696819716096

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
This commit is contained in:
Michael Niedermayer
2021-04-23 19:39:16 +02:00
parent b4e77dfca1
commit 5e38eff284
1 changed files with 1 additions and 1 deletions
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libavformat/dsfdec.c
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@@ -130,7 +130,7 @@ static int dsf_read_header(AVFormatContext *s)
return AVERROR_INVALIDDATA; return AVERROR_INVALIDDATA;
} }
st->codecpar->block_align *= st->codecpar->channels; st->codecpar->block_align *= st->codecpar->channels;
st->codecpar->bit_rate = st->codecpar->channels * st->codecpar->sample_rate * 8LL; st->codecpar->bit_rate = st->codecpar->channels * 8LL * st->codecpar->sample_rate;
avpriv_set_pts_info(st, 64, 1, st->codecpar->sample_rate); avpriv_set_pts_info(st, 64, 1, st->codecpar->sample_rate);
avio_skip(pb, 4); avio_skip(pb, 4);