diff options
| author | James Almer <jamrial@gmail.com> | 2013-02-16 06:07:49 -0300 |
|---|---|---|
| committer | Paul B Mahol <onemda@gmail.com> | 2013-03-02 17:22:18 +0000 |
| commit | 1d5b35cc07c72c3359042a2f13f879cfb2ef549b (patch) | |
| tree | 9dab06cb24886f447c955ebce858c6377202a64d /libavcodec/flacdec.c | |
| parent | 4ae74c63120c0a48b71cfa295c6da9da72772f81 (diff) | |
lavc/flacdec: Add frame CRC calculation
Fixes ticket #2266
Signed-off-by: James Almer <jamrial@gmail.com>
Diffstat (limited to 'libavcodec/flacdec.c')
| -rw-r--r-- | libavcodec/flacdec.c | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/libavcodec/flacdec.c b/libavcodec/flacdec.c index f264d20cb9..91a25f02c4 100644 --- a/libavcodec/flacdec.c +++ b/libavcodec/flacdec.c @@ -533,7 +533,15 @@ static int flac_decode_frame(AVCodecContext *avctx, void *data, av_log(s->avctx, AV_LOG_ERROR, "decode_frame() failed\n"); return -1; } - bytes_read = (get_bits_count(&s->gb)+7)/8; + bytes_read = get_bits_count(&s->gb)/8; + + if ((s->avctx->err_recognition & AV_EF_CRCCHECK) && + av_crc(av_crc_get_table(AV_CRC_16_ANSI), + 0, buf, bytes_read)) { + av_log(s->avctx, AV_LOG_ERROR, "CRC error at PTS %"PRId64"\n", avpkt->pts); + if (s->avctx->err_recognition & AV_EF_EXPLODE) + return AVERROR_INVALIDDATA; + } /* get output buffer */ frame->nb_samples = s->blocksize; |