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mace: check channel count, fixes FPE

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Fixes ticket1391

Found-by: Piotr Bandurski <ami_stuff@o2.pl>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit 6df1cfa7e4)

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Michael Niedermayer 2012-06-03 14:53:43 +02:00
parent bbc4d287c9
commit be1d65031f
1 changed files with 1 additions and 1 deletions
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2
libavcodec/mace.c
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@ -231,7 +231,7 @@ static av_cold int mace_decode_init(AVCodecContext * avctx)
{
MACEContext *ctx = avctx->priv_data;
if (avctx->channels > 2)
if (avctx->channels > 2 || avctx->channels <= 0)
return -1;
avctx->sample_fmt = AV_SAMPLE_FMT_S16;