source: src/lvec.c @ b849106

feature/autosinkfeature/constantqfeature/pitchshiftfeature/pydocstringsfeature/timestretchpitchshiftsamplertimestretchyinfft+
Last change on this file since b849106 was b849106, checked in by Paul Brossier <piem@piem.org>, 11 years ago

src/lvec.{c,h}: add some utils

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File size: 2.2 KB
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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#include "aubio_priv.h"
22#include "lvec.h"
23
24lvec_t * new_lvec( uint_t length, uint_t channels) {
25  lvec_t * s = AUBIO_NEW(lvec_t);
26  uint_t i,j;
27  s->channels = channels;
28  s->length = length;
29  s->data = AUBIO_ARRAY(lsmp_t*,s->channels);
30  for (i=0; i< s->channels; i++) {
31    s->data[i] = AUBIO_ARRAY(lsmp_t, s->length);
32    for (j=0; j< s->length; j++) {
33      s->data[i][j]=0.;
34    }
35  }
36  return s;
37}
38
39void del_lvec(lvec_t *s) {
40  uint_t i;
41  for (i=0; i<s->channels; i++) {
42    AUBIO_FREE(s->data[i]);
43  }
44  AUBIO_FREE(s->data);
45  AUBIO_FREE(s);
46}
47
48void lvec_write_sample(lvec_t *s, lsmp_t data, uint_t channel, uint_t position) {
49  s->data[channel][position] = data;
50}
51lsmp_t lvec_read_sample(lvec_t *s, uint_t channel, uint_t position) {
52  return s->data[channel][position];
53}
54void lvec_put_channel(lvec_t *s, lsmp_t * data, uint_t channel) {
55  s->data[channel] = data;
56}
57lsmp_t * lvec_get_channel(lvec_t *s, uint_t channel) {
58  return s->data[channel];
59}
60
61lsmp_t ** lvec_get_data(lvec_t *s) {
62  return s->data;
63}
64
65/* helper functions */
66
67void lvec_print(lvec_t *s) {
68  uint_t i,j;
69  for (i=0; i< s->channels; i++) {
70    for (j=0; j< s->length; j++) {
71      AUBIO_MSG(AUBIO_LSMP_FMT " ", s->data[i][j]);
72    }
73    AUBIO_MSG("\n");
74  }
75}
76
77void lvec_set(lvec_t *s, smpl_t val) {
78  uint_t i,j;
79  for (i=0; i< s->channels; i++) {
80    for (j=0; j< s->length; j++) {
81      s->data[i][j] = val;
82    }
83  }
84}
85
86void lvec_zeros(lvec_t *s) {
87  lvec_set(s, 0.);
88}
89
90void lvec_ones(lvec_t *s) {
91  lvec_set(s, 1.);
92}
93
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