source: src/io/sink_apple_audio.h @ d9a5466

feature/crepe_org
Last change on this file since d9a5466 was 6f42c16, checked in by Paul Brossier <piem@piem.org>, 9 years ago

src/: change c header identifiers (see #35)
  • Property mode set to 100644
File size: 4.2 KB
Line 
1/*
2  Copyright (C) 2012-2014 Paul Brossier <piem@aubio.org>
3
4  This file is part of aubio.
5
6  aubio is free software: you can redistribute it and/or modify
7  it under the terms of the GNU General Public License as published by
8  the Free Software Foundation, either version 3 of the License, or
9  (at your option) any later version.
10
11  aubio is distributed in the hope that it will be useful,
12  but WITHOUT ANY WARRANTY; without even the implied warranty of
13  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
14  GNU General Public License for more details.
15
16  You should have received a copy of the GNU General Public License
17  along with aubio.  If not, see <http://www.gnu.org/licenses/>.
18
19*/
20
21#ifndef AUBIO_SINK_APPLE_AUDIO_H
22#define AUBIO_SINK_APPLE_AUDIO_H
23
24/** \file
25
26  Write to file using Apple AudioToolbox's
27  [ExtAudioFileRef](https://developer.apple.com/library/ios/#documentation/MusicAudio/Reference/ExtendedAudioFileServicesReference/Reference/reference.html)
28
29  Avoid including this file directly! Prefer using ::aubio_sink_t instead to
30  make your code portable.
31
32  To read from file, use ::aubio_source_t.
33
34  \example io/test-sink_apple_audio.c
35
36*/
37
38#ifdef __cplusplus
39extern "C" {
40#endif
41
42/** sink_apple_audio object */
43typedef struct _aubio_sink_apple_audio_t aubio_sink_apple_audio_t;
44
45/**
46
47  create new ::aubio_sink_apple_audio_t
48
49  \param uri the file path or uri to write to
50  \param samplerate sample rate to write the file at
51
52  \return newly created ::aubio_sink_apple_audio_t
53
54  Creates a new sink object.
55
56  If samplerate is set to 0, the creation of the file will be delayed until
57  both ::aubio_sink_preset_samplerate and ::aubio_sink_preset_channels have
58  been called.
59
60*/
61aubio_sink_apple_audio_t * new_aubio_sink_apple_audio(const char_t * uri, uint_t samplerate);
62
63/**
64
65  preset sink samplerate
66
67  \param s sink, created with ::new_aubio_sink_apple_audio
68  \param samplerate samplerate to preset the sink to, in Hz
69
70  \return 0 on success, 1 on error
71
72  Preset the samplerate of the sink. The file should have been created using a
73  samplerate of 0.
74
75  The file will be opened only when both samplerate and channels have been set.
76
77*/
78uint_t aubio_sink_apple_audio_preset_samplerate(aubio_sink_apple_audio_t *s, uint_t samplerate);
79
80/**
81
82  preset sink channels
83
84  \param s sink, created with ::new_aubio_sink_apple_audio
85  \param channels number of channels to preset the sink to
86
87  \return 0 on success, 1 on error
88
89  Preset the samplerate of the sink. The file should have been created using a
90  samplerate of 0.
91
92  The file will be opened only when both samplerate and channels have been set.
93
94*/
95uint_t aubio_sink_apple_audio_preset_channels(aubio_sink_apple_audio_t *s, uint_t channels);
96
97/**
98
99  get samplerate of sink object
100
101  \param s sink object, created with ::new_aubio_sink_apple_audio
102  \return samplerate, in Hz
103
104*/
105uint_t aubio_sink_apple_audio_get_samplerate(const aubio_sink_apple_audio_t *s);
106
107/**
108
109  get channels of sink object
110
111  \param s sink object, created with ::new_aubio_sink_apple_audio
112  \return number of channels
113
114*/
115uint_t aubio_sink_apple_audio_get_channels(const aubio_sink_apple_audio_t *s);
116
117/**
118
119  write monophonic vector of length hop_size to sink
120
121  \param s sink, created with ::new_aubio_sink_apple_audio
122  \param write_data ::fvec_t samples to write to sink
123  \param write number of frames to write
124
125*/
126void aubio_sink_apple_audio_do(aubio_sink_apple_audio_t * s, fvec_t * write_data, uint_t write);
127
128/**
129
130  write polyphonic vector of length hop_size to sink
131
132  \param s sink, created with ::new_aubio_sink_apple_audio
133  \param write_data ::fmat_t samples to write to sink
134  \param write number of frames to write
135
136*/
137void aubio_sink_apple_audio_do_multi(aubio_sink_apple_audio_t * s, fmat_t * write_data, uint_t write);
138
139/**
140
141  close sink
142
143  \param s sink_apple_audio object, created with ::new_aubio_sink_apple_audio
144
145  \return 0 on success, non-zero on failure
146
147*/
148uint_t aubio_sink_apple_audio_close(aubio_sink_apple_audio_t * s);
149
150/**
151
152  close sink and cleanup memory
153
154  \param s sink, created with ::new_aubio_sink_apple_audio
155
156*/
157void del_aubio_sink_apple_audio(aubio_sink_apple_audio_t * s);
158
159#ifdef __cplusplus
160}
161#endif
162
163#endif /* AUBIO_SINK_APPLE_AUDIO_H */
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