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binkaudio: fix channel count check 

Perform validity check on AVFormatContext.channels instead of
uninitialised field.

This fixes issue 2001.

Signed-off-by: Mans Rullgard <mans@mansr.com>
(cherry picked from commit 9806fbd535)
This commit is contained in:
Peter Ross 2011-02-15 11:58:51 +00:00 committed by Michael Niedermayer
parent 73b3b52285
commit 136901567c
1 changed files with 2 additions and 2 deletions
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4
libavcodec/binkaudio.c
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@ -85,8 +85,8 @@ static av_cold int decode_init(AVCodecContext *avctx)
}
s->frame_len = 1 << frame_len_bits;
if (s->channels > MAX_CHANNELS) {
av_log(s->avctx, AV_LOG_ERROR, "too many channels: %d\n", s->channels);
if (avctx->channels > MAX_CHANNELS) {
av_log(s->avctx, AV_LOG_ERROR, "too many channels: %d\n", avctx->channels);
return -1;
}