| Line | Branch | Exec | Source |
|---|---|---|---|
| 1 | /* | ||
| 2 | * IRCAM muxer | ||
| 3 | * Copyright (c) 2012 Paul B Mahol | ||
| 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/intreadwrite.h" | ||
| 23 | #include "avformat.h" | ||
| 24 | #include "avio_internal.h" | ||
| 25 | #include "internal.h" | ||
| 26 | #include "mux.h" | ||
| 27 | #include "rawenc.h" | ||
| 28 | #include "ircam.h" | ||
| 29 | |||
| 30 | 1 | static int ircam_write_header(AVFormatContext *s) | |
| 31 | { | ||
| 32 | 1 | AVCodecParameters *par = s->streams[0]->codecpar; | |
| 33 | uint32_t tag; | ||
| 34 | |||
| 35 | 1 | tag = ff_codec_get_tag(ff_codec_ircam_le_tags, par->codec_id); | |
| 36 |
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1 | if (!tag) { |
| 37 | ✗ | av_log(s, AV_LOG_ERROR, "unsupported codec\n"); | |
| 38 | ✗ | return AVERROR(EINVAL); | |
| 39 | } | ||
| 40 | |||
| 41 | 1 | avio_wl32(s->pb, 0x0001A364); | |
| 42 | 1 | avio_wl32(s->pb, av_q2intfloat((AVRational){par->sample_rate, 1})); | |
| 43 | 1 | avio_wl32(s->pb, par->ch_layout.nb_channels); | |
| 44 | 1 | avio_wl32(s->pb, tag); | |
| 45 | 1 | ffio_fill(s->pb, 0, 1008); | |
| 46 | 1 | return 0; | |
| 47 | } | ||
| 48 | |||
| 49 | const FFOutputFormat ff_ircam_muxer = { | ||
| 50 | .p.name = "ircam", | ||
| 51 | .p.extensions = "sf,ircam", | ||
| 52 | .p.long_name = NULL_IF_CONFIG_SMALL("Berkeley/IRCAM/CARL Sound Format"), | ||
| 53 | .p.audio_codec = AV_CODEC_ID_PCM_S16LE, | ||
| 54 | .p.video_codec = AV_CODEC_ID_NONE, | ||
| 55 | .p.subtitle_codec = AV_CODEC_ID_NONE, | ||
| 56 | .flags_internal = FF_OFMT_FLAG_MAX_ONE_OF_EACH, | ||
| 57 | .write_header = ircam_write_header, | ||
| 58 | .write_packet = ff_raw_write_packet, | ||
| 59 | .p.codec_tag = (const AVCodecTag *const []){ ff_codec_ircam_le_tags, 0 }, | ||
| 60 | }; | ||
| 61 |