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avcodec/utils: Use 64bit for intermediate in AV_CODEC_ID_ADPCM_THP* duration calculation

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Fixes: signed integer overflow: 486539264 * 14 cannot be represented in type 'int'
Fixes: 35281/clusterfuzz-testcase-minimized-ffmpeg_dem_RSD_fuzzer-6068262742917120

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 2021-06-24 20:00:05 +02:00
parent d70dde2712
commit 00ae9b77ef
1 changed files with 1 additions and 1 deletions
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libavcodec/utils.c
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@ -712,7 +712,7 @@ static int get_audio_frame_duration(enum AVCodecID id, int sr, int ch, int ba,
case AV_CODEC_ID_ADPCM_THP: case AV_CODEC_ID_ADPCM_THP:
case AV_CODEC_ID_ADPCM_THP_LE: case AV_CODEC_ID_ADPCM_THP_LE:
if (extradata) if (extradata)
return frame_bytes * 14 / (8 * ch); return frame_bytes * 14LL / (8 * ch);
break; break;
case AV_CODEC_ID_ADPCM_XA: case AV_CODEC_ID_ADPCM_XA:
return (frame_bytes / 128) * 224 / ch; return (frame_bytes / 128) * 224 / ch;