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adxdec: Fix division by zero

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Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
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Michael Niedermayer 2011-12-18 20:10:51 +01:00
parent bdd62a615a
commit 6b6b84ae16
1 changed files with 2 additions and 0 deletions
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2
libavcodec/adxdec.c
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@ -120,6 +120,8 @@ static int adx_decode_frame(AVCodecContext *avctx, void *data,
buf += header_size; buf += header_size;
buf_size -= header_size; buf_size -= header_size;
} }
if(c->channels <= 0)
return AVERROR_INVALIDDATA;
/* calculate number of blocks in the packet */ /* calculate number of blocks in the packet */
num_blocks = buf_size / (BLOCK_SIZE * c->channels); num_blocks = buf_size / (BLOCK_SIZE * c->channels);