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
24 static int daud_write_header(struct AVFormatContext *s)
26 AVCodecContext *codec = s->streams[0]->codec;
27 if (codec->channels!=6 || codec->sample_rate!=96000)
32 static int daud_write_packet(struct AVFormatContext *s, AVPacket *pkt)
34 if (pkt->size > 65535) {
35 av_log(s, AV_LOG_ERROR,
36 "Packet size too large for s302m. (%d > 65535)\n", pkt->size);
39 avio_wb16(s->pb, pkt->size);
40 avio_wb16(s->pb, 0x8010); // unknown
41 avio_write(s->pb, pkt->data, pkt->size);
45 AVOutputFormat ff_daud_muxer = {
47 .long_name = NULL_IF_CONFIG_SMALL("D-Cinema audio"),
49 .audio_codec = AV_CODEC_ID_PCM_S24DAUD,
50 .video_codec = AV_CODEC_ID_NONE,
51 .write_header = daud_write_header,
52 .write_packet = daud_write_packet,
53 .flags = AVFMT_NOTIMESTAMPS,