source: src/lvec.h @ 6514bb6

feature/autosinkfeature/cnnfeature/cnn_orgfeature/constantqfeature/crepefeature/crepe_orgfeature/pitchshiftfeature/pydocstringsfeature/timestretchfix/ffmpeg5pitchshiftsamplertimestretchyinfft+
Last change on this file since 6514bb6 was f72364d, checked in by Paul Brossier <piem@piem.org>, 12 years ago

src/*.h: improve documentation

  • Property mode set to 100644
File size: 3.0 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  Vector of real-valued data in double precision
31
32  This file specifies the ::lvec_t buffer type, which is used in some places in
33  aubio to store a vector of ::lsmp_t.
34
35  Note: the lvec_t data type is required in some algorithms such as IIR filters
36  (see temporal/filter.h).
37
38  \example test-lvec.c
39
40*/
41
42/** Buffer for real data in double precision */
43typedef struct {
44  uint_t length; /**< length of buffer */
45  lsmp_t *data;  /**< data array of size [length] */
46} lvec_t;
47
48/** lvec_t buffer creation function
49
50  \param length the length of the buffer to create
51
52*/
53lvec_t * new_lvec(uint_t length);
54/** lvec_t buffer deletion function
55
56  \param s buffer to delete as returned by new_lvec()
57
58*/
59void del_lvec(lvec_t *s);
60/** read sample value in a buffer
61
62  Note that this function is not used in the aubio library, since the same
63  result can be obtained using vec->data[position]. Its purpose is to
64  access these values from wrappers, as created by swig.
65
66  \param s vector to read from
67  \param position sample position to read from
68
69*/
70lsmp_t lvec_read_sample(lvec_t *s, 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[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[position]
79  \param position sample position to write to
80
81*/
82void  lvec_write_sample(lvec_t *s, lsmp_t data, uint_t position);
83
84/** read data 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. Its purpose is to access these values
88  from wrappers, as created by swig.
89
90  \param s vector to read from
91
92*/
93lsmp_t * lvec_get_data(lvec_t *s);
94
95/** print out lvec data
96
97  \param s vector to print out
98
99*/
100void lvec_print(lvec_t *s);
101
102/** set all elements to a given value
103
104  \param s vector to modify
105  \param val value to set elements to
106
107*/
108void lvec_set(lvec_t *s, smpl_t val);
109
110/** set all elements to zero
111
112  \param s vector to modify
113
114*/
115void lvec_zeros(lvec_t *s);
116
117/** set all elements to ones
118
119  \param s vector to modify
120
121*/
122void lvec_ones(lvec_t *s);
123
124#ifdef __cplusplus
125}
126#endif
127
128#endif /* _LVEC_H */
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