source: src/fvec.c @ c7860af

feature/autosinkfeature/cnnfeature/cnn_orgfeature/constantqfeature/crepefeature/crepe_orgfeature/pitchshiftfeature/pydocstringsfeature/timestretchfix/ffmpeg5pitchshiftsamplertimestretchyinfft+
Last change on this file since c7860af was c7860af, checked in by Paul Brossier <piem@piem.org>, 14 years ago

modified fvec and lvec to be mono, added fmat

  • Property mode set to 100644
File size: 2.2 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#include "aubio_priv.h"
22#include "fvec.h"
23
24fvec_t * new_fvec( uint_t length) {
25  fvec_t * s = AUBIO_NEW(fvec_t);
26  uint_t j;
27  s->length = length;
28  s->data = AUBIO_ARRAY(smpl_t, s->length);
29  for (j=0; j< s->length; j++) {
30    s->data[j]=0.;
31  }
32  return s;
33}
34
35void del_fvec(fvec_t *s) {
36  AUBIO_FREE(s->data);
37  AUBIO_FREE(s);
38}
39
40void fvec_write_sample(fvec_t *s, smpl_t data, uint_t position) {
41  s->data[position] = data;
42}
43
44smpl_t fvec_read_sample(fvec_t *s, uint_t position) {
45  return s->data[position];
46}
47
48smpl_t * fvec_get_data(fvec_t *s) {
49  return s->data;
50}
51
52/* helper functions */
53
54void fvec_print(fvec_t *s) {
55  uint_t j;
56  for (j=0; j< s->length; j++) {
57    AUBIO_MSG(AUBIO_SMPL_FMT " ", s->data[j]);
58  }
59  AUBIO_MSG("\n");
60}
61
62void fvec_set(fvec_t *s, smpl_t val) {
63  uint_t j;
64  for (j=0; j< s->length; j++) {
65    s->data[j] = val;
66  }
67}
68
69void fvec_zeros(fvec_t *s) {
70  fvec_set(s, 0.);
71}
72
73void fvec_ones(fvec_t *s) {
74  fvec_set(s, 1.);
75}
76
77void fvec_rev(fvec_t *s) {
78  uint_t j;
79  for (j=0; j< FLOOR(s->length/2); j++) {
80    ELEM_SWAP(s->data[j], s->data[s->length-1-j]);
81  }
82}
83
84void fvec_weight(fvec_t *s, fvec_t *weight) {
85  uint_t j;
86  uint_t length = MIN(s->length, weight->length);
87  for (j=0; j< length; j++) {
88    s->data[j] *= weight->data[j];
89  }
90}
91
92void fvec_copy(fvec_t *s, fvec_t *t) {
93  uint_t j;
94  uint_t length = MIN(s->length, t->length);
95  if (s->length != t->length) {
96    AUBIO_WRN("trying to copy %d elements to %d elements \n", 
97            s->length, t->length);
98  }
99  for (j=0; j< length; j++) {
100    t->data[j] = s->data[j];
101  }
102}
103
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