2 * D-Cinema audio demuxer
3 * Copyright (c) 2005 Reimar Döffinger
5 * This file is part of FFmpeg.
7 * FFmpeg is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU Lesser General Public
9 * License as published by the Free Software Foundation; either
10 * version 2.1 of the License, or (at your option) any later version.
12 * FFmpeg is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * Lesser General Public License for more details.
17 * You should have received a copy of the GNU Lesser General Public
18 * License along with FFmpeg; if not, write to the Free Software
19 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
23 static int daud_header(AVFormatContext *s, AVFormatParameters *ap) {
24 AVStream *st = av_new_stream(s, 0);
26 return AVERROR(ENOMEM);
27 st->codec->codec_type = CODEC_TYPE_AUDIO;
28 st->codec->codec_id = CODEC_ID_PCM_S24DAUD;
29 st->codec->codec_tag = MKTAG('d', 'a', 'u', 'd');
30 st->codec->channels = 6;
31 st->codec->sample_rate = 96000;
32 st->codec->bit_rate = 3 * 6 * 96000 * 8;
33 st->codec->block_align = 3 * 6;
34 st->codec->bits_per_coded_sample = 24;
38 static int daud_packet(AVFormatContext *s, AVPacket *pkt) {
39 ByteIOContext *pb = s->pb;
44 get_be16(pb); // unknown
45 ret = av_get_packet(pb, pkt, size);
46 pkt->stream_index = 0;
50 static int daud_write_header(struct AVFormatContext *s)
52 AVCodecContext *codec = s->streams[0]->codec;
53 if (codec->channels!=6 || codec->sample_rate!=96000)
58 static int daud_write_packet(struct AVFormatContext *s, AVPacket *pkt)
60 put_be16(s->pb, pkt->size);
61 put_be16(s->pb, 0x8010); // unknown
62 put_buffer(s->pb, pkt->data, pkt->size);
63 put_flush_packet(s->pb);
67 #if CONFIG_DAUD_DEMUXER
68 AVInputFormat daud_demuxer = {
70 NULL_IF_CONFIG_SMALL("D-Cinema audio format"),
82 AVOutputFormat daud_muxer =
85 NULL_IF_CONFIG_SMALL("D-Cinema audio format"),
93 .flags= AVFMT_NOTIMESTAMPS,