| Line | Branch | Exec | Source |
|---|---|---|---|
| 1 | /* | ||
| 2 | * D-Cinema audio muxer | ||
| 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 "avformat.h" | ||
| 23 | #include "mux.h" | ||
| 24 | |||
| 25 | 1 | static int daud_init(struct AVFormatContext *s) | |
| 26 | { | ||
| 27 | 1 | AVCodecParameters *par = s->streams[0]->codecpar; | |
| 28 | int ret; | ||
| 29 | |||
| 30 |
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1 | if (par->ch_layout.nb_channels != 6) { |
| 31 | ✗ | av_log(s, AV_LOG_ERROR, | |
| 32 | "Invalid number of channels %d, must be exactly 6\n", | ||
| 33 | par->ch_layout.nb_channels); | ||
| 34 | ✗ | return AVERROR(EINVAL); | |
| 35 | } | ||
| 36 | |||
| 37 |
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1 | if (par->sample_rate != 96000) { |
| 38 | ✗ | av_log(s, AV_LOG_ERROR, | |
| 39 | "Invalid sample rate %d, must be 96000\n", | ||
| 40 | par->sample_rate); | ||
| 41 | ✗ | return AVERROR(EINVAL); | |
| 42 | } | ||
| 43 | |||
| 44 | 1 | ret = ff_stream_add_bitstream_filter(s->streams[0], "pcm_rechunk", "n=2000:pad=0"); | |
| 45 |
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1 | if (ret < 0) |
| 46 | ✗ | return ret; | |
| 47 | |||
| 48 | 1 | return 0; | |
| 49 | } | ||
| 50 | |||
| 51 | 82 | static int daud_write_packet(struct AVFormatContext *s, AVPacket *pkt) | |
| 52 | { | ||
| 53 | 82 | avio_wb16(s->pb, pkt->size); | |
| 54 | 82 | avio_wb16(s->pb, 0x8010); // unknown | |
| 55 | 82 | avio_write(s->pb, pkt->data, pkt->size); | |
| 56 | 82 | return 0; | |
| 57 | } | ||
| 58 | |||
| 59 | const FFOutputFormat ff_daud_muxer = { | ||
| 60 | .p.name = "daud", | ||
| 61 | .p.long_name = NULL_IF_CONFIG_SMALL("D-Cinema audio"), | ||
| 62 | .p.extensions = "302", | ||
| 63 | .p.audio_codec = AV_CODEC_ID_PCM_S24DAUD, | ||
| 64 | .p.video_codec = AV_CODEC_ID_NONE, | ||
| 65 | .p.subtitle_codec = AV_CODEC_ID_NONE, | ||
| 66 | .p.flags = AVFMT_NOTIMESTAMPS, | ||
| 67 | .flags_internal = FF_OFMT_FLAG_MAX_ONE_OF_EACH | | ||
| 68 | FF_OFMT_FLAG_ONLY_DEFAULT_CODECS, | ||
| 69 | .init = daud_init, | ||
| 70 | .write_packet = daud_write_packet, | ||
| 71 | }; | ||
| 72 |