/* * D-Cinema audio demuxer * Copyright (c) 2005 Reimar Döffinger * * This file is part of FFmpeg. * * FFmpeg 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 2.1 of the License, or (at your option) any later version. * * FFmpeg 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 FFmpeg; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ #include "libavutil/channel_layout.h"#include "avformat.h"#include "demux.h"#include "internal.h" static int daud_header(AVFormatContext *s) {    AVStream *st = avformat_new_stream(s, NULL);    if (!st)        return AVERROR(ENOMEM);    st->codecpar->codec_type = AVMEDIA_TYPE_AUDIO;    st->codecpar->codec_id = AV_CODEC_ID_PCM_S24DAUD;    st->codecpar->codec_tag = MKTAG('d', 'a', 'u', 'd');    st->codecpar->ch_layout = (AVChannelLayout)AV_CHANNEL_LAYOUT_5POINT1;    st->codecpar->sample_rate = 96000;    st->codecpar->bit_rate = 3 * 6 * 96000 * 8;    st->codecpar->block_align = 3 * 6;    st->codecpar->bits_per_coded_sample = 24;     avpriv_set_pts_info(st, 64, 1, st->codecpar->sample_rate);     return 0;} static int daud_packet(AVFormatContext *s, AVPacket *pkt) {    AVIOContext *pb = s->pb;    int ret, size;    if (avio_feof(pb))        return AVERROR_EOF;    size = avio_rb16(pb);    avio_rb16(pb); // unknown    ret = av_get_packet(pb, pkt, size);    pkt->stream_index = 0;    return ret;} const FFInputFormat ff_daud_demuxer = {    .p.name         = "daud",    .p.long_name    = NULL_IF_CONFIG_SMALL("D-Cinema audio"),    .p.extensions   = "302,daud",    .read_header    = daud_header,    .read_packet    = daud_packet,};