FFmpeg coverage


Directory: ../../../ffmpeg/
File: src/libavformat/daudenc.c
Date: 2024-03-28 14:59:00
Exec Total Coverage
Lines: 12 17 70.6%
Functions: 2 2 100.0%
Branches: 3 6 50.0%

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