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Merge commit '89806691b1c39181c63d95e0fddc30f11e2a7b04'

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* commit '89806691b1c39181c63d95e0fddc30f11e2a7b04':
  wavpack: check that all the channels were coded.
  wavpack: check that there aren't too many blocks per packet

Merged-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Michael Niedermayer 2013-05-29 04:44:53 +02:00
commit 7a2edcf1c8
1 changed files with 10 additions and 5 deletions
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15
libavcodec/wavpack.c
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@ -805,11 +805,6 @@ static int wavpack_decode_block(AVCodecContext *avctx, int block_no,
s->hybrid_minclip = ((-1LL << (orig_bpp - 1)));
s->CRC = bytestream2_get_le32(&gb);
if (wc->ch_offset + s->stereo >= avctx->channels) {
av_log(avctx, AV_LOG_ERROR, "too many channels\n");
return -1;
}
// parse metadata blocks
while (bytestream2_get_bytes_left(&gb)) {
id = bytestream2_get_byte(&gb);
@ -1132,6 +1127,11 @@ static int wavpack_decode_block(AVCodecContext *avctx, int block_no,
frame->nb_samples = s->samples;
}
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];
@ -1219,6 +1219,11 @@ static int wavpack_decode_frame(AVCodecContext *avctx, void *data,
buf_size -= frame_size;
}
if (s->ch_offset != avctx->channels) {
av_log(avctx, AV_LOG_ERROR, "Not enough channels coded in a packet.\n");
return AVERROR_INVALIDDATA;
}
*got_frame_ptr = 1;
return avpkt->size;