| 1 | /*
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| 2 | * D-Cinema audio decoder.
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| 3 | * Copyright (c) 2005 Reimar Döffinger.
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| 4 | *
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| 5 | * This library is free software; you can redistribute it and/or
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| 6 | * modify it under the terms of the GNU Lesser General Public
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| 7 | * License as published by the Free Software Foundation; either
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| 8 | * version 2 of the License, or (at your option) any later version.
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| 9 | *
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| 10 | * This library is distributed in the hope that it will be useful,
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| 11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
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| 12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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| 13 | * Lesser General Public License for more details.
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| 14 | *
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| 15 | * You should have received a copy of the GNU Lesser General Public
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| 16 | * License along with this library; if not, write to the Free Software
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| 17 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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| 18 | */
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| 19 | #include "avformat.h"
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| 20 |
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| 21 | static int daud_header(AVFormatContext *s, AVFormatParameters *ap) {
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| 22 | AVStream *st = av_new_stream(s, 0);
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| 23 | st->codec->codec_type = CODEC_TYPE_AUDIO;
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| 24 | st->codec->codec_id = CODEC_ID_PCM_S24DAUD;
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| 25 | st->codec->codec_tag = MKTAG('d', 'a', 'u', 'd');
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| 26 | st->codec->channels = 6;
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| 27 | st->codec->sample_rate = 96000;
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| 28 | st->codec->bit_rate = 3 * 6 * 96000 * 8;
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| 29 | st->codec->block_align = 3 * 6;
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| 30 | st->codec->bits_per_sample = 24;
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| 31 | return 0;
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| 32 | }
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| 33 |
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| 34 | static int daud_packet(AVFormatContext *s, AVPacket *pkt) {
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| 35 | ByteIOContext *pb = &s->pb;
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| 36 | int ret, size;
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| 37 | if (url_feof(pb))
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| 38 | return AVERROR_IO;
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| 39 | size = get_be16(pb);
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| 40 | get_be16(pb); // unknown
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| 41 | ret = av_get_packet(pb, pkt, size);
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| 42 | pkt->stream_index = 0;
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| 43 | return ret;
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| 44 | }
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| 45 |
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| 46 | static AVInputFormat daud_demuxer = {
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| 47 | "daud",
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| 48 | "D-Cinema audio format",
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| 49 | 0,
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| 50 | NULL,
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| 51 | daud_header,
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| 52 | daud_packet,
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| 53 | NULL,
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| 54 | NULL,
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| 55 | .extensions = "302",
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| 56 | };
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| 57 |
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| 58 | int daud_init(void)
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| 59 | {
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| 60 | av_register_input_format(&daud_demuxer);
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| 61 | return 0;
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| 62 | }
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| 63 |
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