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Code Issues Releases Activity

lavc/flacdec: Add frame CRC calculation

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Fixes ticket #2266

Signed-off-by: James Almer <jamrial@gmail.com>
This commit is contained in:
James Almer 2013-02-16 06:07:49 -03:00 committed by Paul B Mahol
parent 4ae74c6312
commit 1d5b35cc07
1 changed files with 9 additions and 1 deletions
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10
libavcodec/flacdec.c
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@ -533,7 +533,15 @@ static int flac_decode_frame(AVCodecContext *avctx, void *data,
av_log(s->avctx, AV_LOG_ERROR, "decode_frame() failed\n"); av_log(s->avctx, AV_LOG_ERROR, "decode_frame() failed\n");
return -1; 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 */ /* get output buffer */
frame->nb_samples = s->blocksize; frame->nb_samples = s->blocksize;