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atrac1: Check block align.

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Fixes OOM
Fixes second samples posted in Ticket1893

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Michael Niedermayer 2012-11-24 16:17:29 +01:00
parent 5c392bac9a
commit ed017ab945
1 changed files with 5 additions and 0 deletions
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5
libavcodec/atrac1.c
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@ -343,6 +343,11 @@ static av_cold int atrac1_decode_init(AVCodecContext *avctx)
return AVERROR(EINVAL);
}
if (avctx->block_align <= 0) {
av_log_ask_for_sample(avctx, "unsupported block align\n");
return AVERROR_PATCHWELCOME;
}
/* Init the mdct transforms */
if ((ret = ff_mdct_init(&q->mdct_ctx[0], 6, 1, -1.0/ (1 << 15))) ||
(ret = ff_mdct_init(&q->mdct_ctx[1], 8, 1, -1.0/ (1 << 15))) ||