2005-09-02 19:18:59 +00:00
|
|
|
|
/*
|
|
|
|
|
|
* D-Cinema audio decoder.
|
|
|
|
|
|
* Copyright (c) 2005 Reimar D<EFBFBD>ffinger.
|
|
|
|
|
|
*
|
|
|
|
|
|
* This library is free software; you can redistribute it and/or
|
|
|
|
|
|
* modify it under the terms of the GNU Lesser General Public
|
|
|
|
|
|
* License as published by the Free Software Foundation; either
|
|
|
|
|
|
* version 2 of the License, or (at your option) any later version.
|
|
|
|
|
|
*
|
|
|
|
|
|
* This library is distributed in the hope that it will be useful,
|
|
|
|
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
|
|
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
|
|
|
|
* Lesser General Public License for more details.
|
|
|
|
|
|
*
|
|
|
|
|
|
* You should have received a copy of the GNU Lesser General Public
|
|
|
|
|
|
* License along with this library; if not, write to the Free Software
|
2006-01-12 22:43:26 +00:00
|
|
|
|
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
|
2005-09-02 19:18:59 +00:00
|
|
|
|
*/
|
|
|
|
|
|
#include "avformat.h"
|
|
|
|
|
|
|
|
|
|
|
|
static int daud_header(AVFormatContext *s, AVFormatParameters *ap) {
|
|
|
|
|
|
AVStream *st = av_new_stream(s, 0);
|
|
|
|
|
|
st->codec->codec_type = CODEC_TYPE_AUDIO;
|
|
|
|
|
|
st->codec->codec_id = CODEC_ID_PCM_S24DAUD;
|
|
|
|
|
|
st->codec->codec_tag = MKTAG('d', 'a', 'u', 'd');
|
|
|
|
|
|
st->codec->channels = 6;
|
|
|
|
|
|
st->codec->sample_rate = 96000;
|
|
|
|
|
|
st->codec->bit_rate = 3 * 6 * 96000 * 8;
|
|
|
|
|
|
st->codec->block_align = 3 * 6;
|
|
|
|
|
|
st->codec->bits_per_sample = 24;
|
|
|
|
|
|
return 0;
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
static int daud_packet(AVFormatContext *s, AVPacket *pkt) {
|
|
|
|
|
|
ByteIOContext *pb = &s->pb;
|
|
|
|
|
|
int ret, size;
|
|
|
|
|
|
if (url_feof(pb))
|
|
|
|
|
|
return AVERROR_IO;
|
|
|
|
|
|
size = get_be16(pb);
|
|
|
|
|
|
get_be16(pb); // unknown
|
|
|
|
|
|
ret = av_get_packet(pb, pkt, size);
|
|
|
|
|
|
pkt->stream_index = 0;
|
|
|
|
|
|
return ret;
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
static AVInputFormat daud_iformat = {
|
|
|
|
|
|
"daud",
|
|
|
|
|
|
"D-Cinema audio format",
|
|
|
|
|
|
0,
|
|
|
|
|
|
NULL,
|
|
|
|
|
|
daud_header,
|
|
|
|
|
|
daud_packet,
|
|
|
|
|
|
NULL,
|
|
|
|
|
|
NULL,
|
|
|
|
|
|
.extensions = "302",
|
|
|
|
|
|
};
|
|
|
|
|
|
|
|
|
|
|
|
int daud_init(void)
|
|
|
|
|
|
{
|
|
|
|
|
|
av_register_input_format(&daud_iformat);
|
|
|
|
|
|
return 0;
|
|
|
|
|
|
}
|
|
|
|
|
|
|
