source: src/lvec.h @ 64c3658

feature/autosinkfeature/cnnfeature/cnn_orgfeature/constantqfeature/crepefeature/crepe_orgfeature/pitchshiftfeature/pydocstringsfeature/timestretchfix/ffmpeg5pitchshiftsamplertimestretchyinfft+
Last change on this file since 64c3658 was a6db140, checked in by Paul Brossier <piem@piem.org>, 15 years ago

src/*.[ch]: update copyrights and license from 2003 / GPLv2 to 2003-2009 / GPLv3

  • Property mode set to 100644
File size: 3.7 KB
Line 
1/*
2  Copyright (C) 2003-2009 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 _LVEC_H
22#define _LVEC_H
23
24#ifdef __cplusplus
25extern "C" {
26#endif
27
28/** \file
29
30  Real buffers
31
32  This file specifies the lvec_t buffer type, which is used in aubio to store
33  double precision real data. Note that the lvec_t data type is mostly used for
34  IIR filters (see temporal/filter.h).
35
36*/
37
38/** Sample buffer type */
39typedef struct _lvec_t lvec_t;
40/** Buffer for real values */
41struct _lvec_t {
42  uint_t length;   /**< length of buffer */
43  uint_t channels; /**< number of channels */
44  lsmp_t **data;   /**< data array of size [length] * [channels] */
45};
46/** lvec_t buffer creation function
47
48  \param length the length of the buffer to create
49  \param channels the number of channels in the buffer
50
51*/
52lvec_t * new_lvec(uint_t length, uint_t channels);
53/** lvec_t buffer deletion function
54
55  \param s buffer to delete as returned by new_lvec()
56
57*/
58void del_lvec(lvec_t *s);
59/** read sample value in a buffer
60
61  Note that this function is not used in the aubio library, since the same
62  result can be obtained using vec->data[channel][position]. Its purpose is to
63  access these values from wrappers, as created by swig.
64
65  \param s vector to read from
66  \param channel channel to read from
67  \param position sample position to read from
68
69*/
70lsmp_t lvec_read_sample(lvec_t *s, uint_t channel, uint_t position);
71/** write sample value in a buffer
72
73  Note that this function is not used in the aubio library, since the same
74  result can be obtained by assigning vec->data[channel][position]. Its purpose
75  is to access these values from wrappers, as created by swig.
76
77  \param s vector to write to
78  \param data value to write in s->data[channel][position]
79  \param channel channel to write to
80  \param position sample position to write to
81
82*/
83void  lvec_write_sample(lvec_t *s, lsmp_t data, uint_t channel, uint_t position);
84/** read channel vector from a buffer
85
86  Note that this function is not used in the aubio library, since the same
87  result can be obtained with vec->data[channel]. Its purpose is to access
88  these values from wrappers, as created by swig.
89
90  \param s vector to read from
91  \param channel channel to read from
92
93*/
94lsmp_t * lvec_get_channel(lvec_t *s, uint_t channel);
95/** write channel vector into a buffer
96
97  Note that this function is not used in the aubio library, since the same
98  result can be obtained by assigning vec->data[channel]. Its purpose is to
99  access these values from wrappers, as created by swig.
100
101  \param s vector to write to
102  \param data vector of [length] values to write
103  \param channel channel to write to
104
105*/
106void lvec_put_channel(lvec_t *s, lsmp_t * data, uint_t channel);
107/** read data from a buffer
108
109  Note that this function is not used in the aubio library, since the same
110  result can be obtained with vec->data. Its purpose is to access these values
111  from wrappers, as created by swig.
112
113  \param s vector to read from
114
115*/
116lsmp_t ** lvec_get_data(lvec_t *s);
117
118/** print out lvec data
119
120  \param s vector to print out
121
122*/
123void lvec_print(lvec_t *s);
124
125#ifdef __cplusplus
126}
127#endif
128
129#endif /* _LVEC_H */
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