diff --git a/libavcodec/wavpack.c b/libavcodec/wavpack.c index 5a7aae2dd3..0ca6fcada3 100644 --- a/libavcodec/wavpack.c +++ b/libavcodec/wavpack.c @@ -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;