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wavpack: check that there aren't too many blocks per packet

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Anton Khirnov 2013-05-27 19:11:09 +02:00
parent 7d039e70a5
commit eae1b8451a
1 changed files with 5 additions and 0 deletions
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5
libavcodec/wavpack.c
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@ -1120,6 +1120,11 @@ static int wavpack_decode_block(AVCodecContext *avctx, int block_no,
}
}
if (wc->ch_offset + s->stereo >= avctx->channels) {
av_log(avctx, AV_LOG_WARNING, "Too many channels coded in a packet.\n");
return (avctx->err_recognition & AV_EF_EXPLODE) ? AVERROR_INVALIDDATA : 0;
}
samples_l = frame->extended_data[wc->ch_offset];
if (s->stereo)
samples_r = frame->extended_data[wc->ch_offset + 1];