| Line | Branch | Exec | Source |
|---|---|---|---|
| 1 | /* | ||
| 2 | * D-Cinema audio demuxer | ||
| 3 | * Copyright (c) 2005 Reimar Döffinger | ||
| 4 | * | ||
| 5 | * This file is part of FFmpeg. | ||
| 6 | * | ||
| 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. | ||
| 11 | * | ||
| 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. | ||
| 16 | * | ||
| 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 | ||
| 20 | */ | ||
| 21 | |||
| 22 | #include "libavutil/channel_layout.h" | ||
| 23 | #include "avformat.h" | ||
| 24 | #include "demux.h" | ||
| 25 | #include "internal.h" | ||
| 26 | |||
| 27 | 3 | static int daud_header(AVFormatContext *s) { | |
| 28 | 3 | AVStream *st = avformat_new_stream(s, NULL); | |
| 29 |
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3 | if (!st) |
| 30 | ✗ | return AVERROR(ENOMEM); | |
| 31 | 3 | st->codecpar->codec_type = AVMEDIA_TYPE_AUDIO; | |
| 32 | 3 | st->codecpar->codec_id = AV_CODEC_ID_PCM_S24DAUD; | |
| 33 | 3 | st->codecpar->codec_tag = MKTAG('d', 'a', 'u', 'd'); | |
| 34 | 3 | st->codecpar->ch_layout = (AVChannelLayout)AV_CHANNEL_LAYOUT_5POINT1; | |
| 35 | 3 | st->codecpar->sample_rate = 96000; | |
| 36 | 3 | st->codecpar->bit_rate = 3 * 6 * 96000 * 8; | |
| 37 | 3 | st->codecpar->block_align = 3 * 6; | |
| 38 | 3 | st->codecpar->bits_per_coded_sample = 24; | |
| 39 | |||
| 40 | 3 | avpriv_set_pts_info(st, 64, 1, st->codecpar->sample_rate); | |
| 41 | |||
| 42 | 3 | return 0; | |
| 43 | } | ||
| 44 | |||
| 45 | 95 | static int daud_packet(AVFormatContext *s, AVPacket *pkt) { | |
| 46 | 95 | AVIOContext *pb = s->pb; | |
| 47 | int ret, size; | ||
| 48 |
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95 | if (avio_feof(pb)) |
| 49 | 4 | return AVERROR_EOF; | |
| 50 | 91 | size = avio_rb16(pb); | |
| 51 | 91 | avio_rb16(pb); // unknown | |
| 52 | 91 | ret = av_get_packet(pb, pkt, size); | |
| 53 | 91 | pkt->stream_index = 0; | |
| 54 | 91 | return ret; | |
| 55 | } | ||
| 56 | |||
| 57 | const FFInputFormat ff_daud_demuxer = { | ||
| 58 | .p.name = "daud", | ||
| 59 | .p.long_name = NULL_IF_CONFIG_SMALL("D-Cinema audio"), | ||
| 60 | .p.extensions = "302,daud", | ||
| 61 | .read_header = daud_header, | ||
| 62 | .read_packet = daud_packet, | ||
| 63 | }; | ||
| 64 |