2 Copyright (C) 2003-2009 Paul Brossier <piem@aubio.org>
4 This file is part of aubio.
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.
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.
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/>.
30 Vector of real-valued data in double precision
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.
35 Note: the lvec_t data type is required in some algorithms such as IIR filters
36 (see temporal/filter.h).
42 /** Buffer for real data in double precision */
44 uint_t length; /**< length of buffer */
45 lsmp_t *data; /**< data array of size [length] */
48 /** lvec_t buffer creation function
50 \param length the length of the buffer to create
53 lvec_t * new_lvec(uint_t length);
54 /** lvec_t buffer deletion function
56 \param s buffer to delete as returned by new_lvec()
59 void del_lvec(lvec_t *s);
60 /** read sample value in a buffer
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.
66 \param s vector to read from
67 \param position sample position to read from
70 lsmp_t lvec_read_sample(lvec_t *s, uint_t position);
71 /** write sample value in a buffer
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.
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
82 void lvec_write_sample(lvec_t *s, lsmp_t data, uint_t position);
84 /** read data from a buffer
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.
90 \param s vector to read from
93 lsmp_t * lvec_get_data(lvec_t *s);
95 /** print out lvec data
97 \param s vector to print out
100 void lvec_print(lvec_t *s);
102 /** set all elements to a given value
104 \param s vector to modify
105 \param val value to set elements to
108 void lvec_set(lvec_t *s, smpl_t val);
110 /** set all elements to zero
112 \param s vector to modify
115 void lvec_zeros(lvec_t *s);
117 /** set all elements to ones
119 \param s vector to modify
122 void lvec_ones(lvec_t *s);