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binkaudio: prevent extradata overread 

Signed-off-by: Paul B Mahol <onemda@gmail.com>
This commit is contained in:
Paul B Mahol 2012-06-09 10:30:31 +00:00
parent 6fef82f22d
commit c2dd01c16f
1 changed files with 1 additions and 1 deletions
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2
libavcodec/binkaudio.c
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@ -96,7 +96,7 @@ static av_cold int decode_init(AVCodecContext *avctx)
return AVERROR_INVALIDDATA;
}
s->version_b = avctx->extradata && avctx->extradata[3] == 'b';
s->version_b = avctx->extradata_size >= 4 && avctx->extradata[3] == 'b';
if (avctx->codec->id == CODEC_ID_BINKAUDIO_RDFT) {
// audio is already interleaved for the RDFT format variant