| Line | Branch | Exec | Source |
|---|---|---|---|
| 1 | /* | ||
| 2 | * Sony OpenMG (OMA) muxer | ||
| 3 | * | ||
| 4 | * Copyright (c) 2011 Michael Karcher | ||
| 5 | * | ||
| 6 | * This file is part of FFmpeg. | ||
| 7 | * | ||
| 8 | * FFmpeg is free software; you can redistribute it and/or | ||
| 9 | * modify it under the terms of the GNU Lesser General Public | ||
| 10 | * License as published by the Free Software Foundation; either | ||
| 11 | * version 2.1 of the License, or (at your option) any later version. | ||
| 12 | * | ||
| 13 | * FFmpeg is distributed in the hope that it will be useful, | ||
| 14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
| 15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | ||
| 16 | * Lesser General Public License for more details. | ||
| 17 | * | ||
| 18 | * You should have received a copy of the GNU Lesser General Public | ||
| 19 | * License along with FFmpeg; if not, write to the Free Software | ||
| 20 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA | ||
| 21 | */ | ||
| 22 | |||
| 23 | #include "avformat.h" | ||
| 24 | #include "avio_internal.h" | ||
| 25 | #include "id3v2.h" | ||
| 26 | #include "internal.h" | ||
| 27 | #include "mux.h" | ||
| 28 | #include "oma.h" | ||
| 29 | #include "rawenc.h" | ||
| 30 | |||
| 31 | 2 | static av_cold int oma_write_header(AVFormatContext *s) | |
| 32 | { | ||
| 33 | AVCodecParameters *par; | ||
| 34 | int srate_index; | ||
| 35 | int isjointstereo; | ||
| 36 | |||
| 37 | 2 | par = s->streams[0]->codecpar; | |
| 38 | /* check for support of the format first */ | ||
| 39 | |||
| 40 | 4 | for (srate_index = 0; ; srate_index++) { | |
| 41 |
1/2✗ Branch 0 not taken.
✓ Branch 1 taken 4 times.
|
4 | if (ff_oma_srate_tab[srate_index] == 0) { |
| 42 | ✗ | av_log(s, AV_LOG_ERROR, "Sample rate %d not supported in OpenMG audio\n", | |
| 43 | par->sample_rate); | ||
| 44 | ✗ | return AVERROR(EINVAL); | |
| 45 | } | ||
| 46 | |||
| 47 |
2/2✓ Branch 0 taken 2 times.
✓ Branch 1 taken 2 times.
|
4 | if (ff_oma_srate_tab[srate_index] * 100 == par->sample_rate) |
| 48 | 2 | break; | |
| 49 | } | ||
| 50 | |||
| 51 | /* Metadata; OpenMG does not support ID3v2.4 */ | ||
| 52 | 2 | ff_id3v2_write_simple(s, 3, ID3v2_EA3_MAGIC); | |
| 53 | |||
| 54 | 2 | ffio_wfourcc(s->pb, "EA3\0"); | |
| 55 | 2 | avio_w8(s->pb, EA3_HEADER_SIZE >> 7); | |
| 56 | 2 | avio_w8(s->pb, EA3_HEADER_SIZE & 0x7F); | |
| 57 | 2 | avio_wl16(s->pb, 0xFFFF); /* not encrypted */ | |
| 58 | 2 | ffio_fill(s->pb, 0, 6 * 4); /* Padding + DRM id */ | |
| 59 | |||
| 60 |
2/3✓ Branch 0 taken 1 times.
✓ Branch 1 taken 1 times.
✗ Branch 2 not taken.
|
2 | switch (par->codec_tag) { |
| 61 | 1 | case OMA_CODECID_ATRAC3: | |
| 62 |
1/2✗ Branch 0 not taken.
✓ Branch 1 taken 1 times.
|
1 | if (par->ch_layout.nb_channels != 2) { |
| 63 | ✗ | av_log(s, AV_LOG_ERROR, "ATRAC3 in OMA is only supported with 2 channels\n"); | |
| 64 | ✗ | return AVERROR(EINVAL); | |
| 65 | } | ||
| 66 |
1/2✓ Branch 0 taken 1 times.
✗ Branch 1 not taken.
|
1 | if (par->extradata_size == 14) /* WAV format extradata */ |
| 67 | 1 | isjointstereo = par->extradata[6] != 0; | |
| 68 | ✗ | else if(par->extradata_size == 10) /* RM format extradata */ | |
| 69 | ✗ | isjointstereo = par->extradata[8] == 0x12; | |
| 70 | else { | ||
| 71 | ✗ | av_log(s, AV_LOG_ERROR, "ATRAC3: Unsupported extradata size\n"); | |
| 72 | ✗ | return AVERROR(EINVAL); | |
| 73 | } | ||
| 74 | 1 | avio_wb32(s->pb, (OMA_CODECID_ATRAC3 << 24) | | |
| 75 | 1 | (isjointstereo << 17) | | |
| 76 | 1 | (srate_index << 13) | | |
| 77 | 1 | (par->block_align/8)); | |
| 78 | 1 | break; | |
| 79 | 1 | case OMA_CODECID_ATRAC3P: | |
| 80 | 1 | avio_wb32(s->pb, (OMA_CODECID_ATRAC3P << 24) | | |
| 81 | 1 | (srate_index << 13) | | |
| 82 | 1 | (par->ch_layout.nb_channels << 10) | | |
| 83 | 1 | (par->block_align/8 - 1)); | |
| 84 | 1 | break; | |
| 85 | ✗ | default: | |
| 86 | ✗ | av_log(s, AV_LOG_ERROR, "unsupported codec tag %s for write\n", | |
| 87 | ✗ | av_fourcc2str(par->codec_tag)); | |
| 88 | ✗ | return AVERROR(EINVAL); | |
| 89 | } | ||
| 90 | 2 | ffio_fill(s->pb, 0, EA3_HEADER_SIZE - 36); /* Padding */ | |
| 91 | |||
| 92 | 2 | return 0; | |
| 93 | } | ||
| 94 | |||
| 95 | const FFOutputFormat ff_oma_muxer = { | ||
| 96 | .p.name = "oma", | ||
| 97 | .p.long_name = NULL_IF_CONFIG_SMALL("Sony OpenMG audio"), | ||
| 98 | .p.mime_type = "audio/x-oma", | ||
| 99 | .p.extensions = "oma", | ||
| 100 | .p.video_codec = AV_CODEC_ID_NONE, | ||
| 101 | .p.audio_codec = AV_CODEC_ID_ATRAC3, | ||
| 102 | .p.subtitle_codec = AV_CODEC_ID_NONE, | ||
| 103 | .write_header = oma_write_header, | ||
| 104 | .write_packet = ff_raw_write_packet, | ||
| 105 | .p.codec_tag = ff_oma_codec_tags_list, | ||
| 106 | .p.flags = AVFMT_NOTIMESTAMPS, | ||
| 107 | .flags_internal = FF_OFMT_FLAG_MAX_ONE_OF_EACH, | ||
| 108 | }; | ||
| 109 |