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| author | Christophe Gisquet <christophe.gisquet@gmail.com> | 2014-08-19 12:26:49 +0000 |
|---|---|---|
| committer | Michael Niedermayer <michaelni@gmx.at> | 2014-10-03 02:51:57 +0200 |
| commit | 25864cf562c3c7571a27408e17b8ad39a6fd9cdc (patch) | |
| tree | ee272ed9f7d6b99a842e759f6c0234d8095ca826 | |
| parent | f74206cb40ee966ebb1b1bb2e1a4efe92d1206e0 (diff) | |
| download | ffmpeg-25864cf562c3c7571a27408e17b8ad39a6fd9cdc.tar.gz | |
wavpackenc: proper buffer allocation
The allocation didn't account for headers, that can be easily 79 bytes.
As a result, buffers allocated for a few samples (e.g. 5 in the original
bug) could be undersized.
Fixed ticket #2881.
Reviewed-by: Paul B Mahol <onemda@gmail.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit 2ba58bec20b0039ccc40cfba59af6d56de16e8b1)
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
| -rw-r--r-- | libavcodec/wavpackenc.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/libavcodec/wavpackenc.c b/libavcodec/wavpackenc.c index 5b8973c5c7..005cf7c2e5 100644 --- a/libavcodec/wavpackenc.c +++ b/libavcodec/wavpackenc.c @@ -2876,10 +2876,11 @@ static int wavpack_encode_frame(AVCodecContext *avctx, AVPacket *avpkt, return AVERROR(ENOMEM); } - if ((ret = ff_alloc_packet2(avctx, avpkt, s->block_samples * avctx->channels * 8)) < 0) + buf_size = s->block_samples * avctx->channels * 8 + + 200 /* for headers */; + if ((ret = ff_alloc_packet2(avctx, avpkt, buf_size)) < 0) return ret; buf = avpkt->data; - buf_size = avpkt->size; for (s->ch_offset = 0; s->ch_offset < avctx->channels;) { set_samplerate(s); |