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avformat/apm: Use 64bit for bit_rate computation
Fixes: signed integer overflow: -1155522528 * 4 cannot be represented in type 'int' Fixes: 50993/clusterfuzz-testcase-minimized-ffmpeg_dem_APM_fuzzer-6580670570299392 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 5b23cab5c769d6611a3fe111546d65809046a4d8) Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
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@ -148,7 +148,7 @@ static int apm_read_header(AVFormatContext *s)
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par->codec_id = AV_CODEC_ID_ADPCM_IMA_APM;
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par->format = AV_SAMPLE_FMT_S16;
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par->bit_rate = par->ch_layout.nb_channels *
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par->sample_rate *
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(int64_t)par->sample_rate *
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par->bits_per_coded_sample;
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if ((ret = avio_read(s->pb, buf, APM_FILE_EXTRADATA_SIZE)) < 0)
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