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