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avcodec/vmdaudio: Fix channels count bug

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Fixes: division by zero
Fixes: 45811/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_VMDAUDIO_fuzzer-6412592581574656
Fixes: 45979/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_VMDAUDIO_fuzzer-5362043060879360

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 2022-03-21 20:30:29 +01:00
parent 5ee198f9aa
commit 31b22defcd
1 changed files with 1 additions and 1 deletions
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libavcodec/vmdaudio.c
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@ -85,7 +85,7 @@ static av_cold int vmdaudio_decode_init(AVCodecContext *avctx)
}
av_channel_layout_uninit(&avctx->ch_layout);
av_channel_layout_default(&avctx->ch_layout, channels == 1);
av_channel_layout_default(&avctx->ch_layout, channels);
if (avctx->bits_per_coded_sample == 16)
avctx->sample_fmt = AV_SAMPLE_FMT_S16;