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avformat/pp_bnk: Use 64bit in bitrate computation 

Fixes: signed integer overflow: 1207959552 * 4 cannot be represented in type 'int'
Fixes: 29102/clusterfuzz-testcase-minimized-ffmpeg_dem_PP_BNK_fuzzer-6747301169201152

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 88fc295838)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
This commit is contained in:
Michael Niedermayer 2021-04-25 20:12:13 +02:00
parent acfce11c48
commit b425df191c
1 changed files with 1 additions and 1 deletions
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2
libavformat/pp_bnk.c
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@ -223,7 +223,7 @@ static int pp_bnk_read_header(AVFormatContext *s)
par->bits_per_coded_sample = 4;
par->bits_per_raw_sample = 16;
par->block_align = 1;
par->bit_rate = par->sample_rate * par->bits_per_coded_sample * par->channels;
par->bit_rate = par->sample_rate * (int64_t)par->bits_per_coded_sample * par->channels;
avpriv_set_pts_info(st, 64, 1, par->sample_rate);
st->start_time = 0;