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avformat/spdifdec: Use 64bit to compute bit rate 

Fixes: signed integer overflow: 32 * 553590816 cannot be represented in type 'int'
Fixes: 50993/clusterfuzz-testcase-minimized-ffmpeg_dem_WAV_fuzzer-6564974517944320

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 4075f0cec1)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
This commit is contained in:
Michael Niedermayer 2022-09-18 18:12:11 +02:00
parent a9fcab5cdc
commit 2b9ab80757
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1 changed files with 1 additions and 1 deletions
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libavformat/spdifdec.c
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@ -225,7 +225,7 @@ int ff_spdif_read_packet(AVFormatContext *s, AVPacket *pkt)
if (!s->bit_rate && s->streams[0]->codecpar->sample_rate)
/* stream bitrate matches 16-bit stereo PCM bitrate for currently
supported codecs */
s->bit_rate = 2 * 16 * s->streams[0]->codecpar->sample_rate;
s->bit_rate = 2 * 16LL * s->streams[0]->codecpar->sample_rate;
return 0;
}