source: src/fvec.c @ 1b25a70

feature/autosinkfeature/cnnfeature/cnn_orgfeature/constantqfeature/crepefeature/crepe_orgfeature/pitchshiftfeature/pydocstringsfeature/timestretchfix/ffmpeg5pitchshiftsamplertimestretchyinfft+
Last change on this file since 1b25a70 was 767990e, checked in by Paul Brossier <piem@piem.org>, 10 years ago

src/{fvec,cvec,lvec,fmat}.c: make sure new_ functions return NULL if length <= 0

  • Property mode set to 100644
File size: 2.3 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  if ((sint_t)length <= 0) {
26    return NULL;
27  }
28  fvec_t * s = AUBIO_NEW(fvec_t);
29  s->length = length;
30  s->data = AUBIO_ARRAY(smpl_t, s->length);
31  return s;
32}
33
34void del_fvec(fvec_t *s) {
35  AUBIO_FREE(s->data);
36  AUBIO_FREE(s);
37}
38
39void fvec_write_sample(fvec_t *s, smpl_t data, uint_t position) {
40  s->data[position] = data;
41}
42
43smpl_t fvec_read_sample(fvec_t *s, uint_t position) {
44  return s->data[position];
45}
46
47smpl_t * fvec_get_data(fvec_t *s) {
48  return s->data;
49}
50
51/* helper functions */
52
53void fvec_print(fvec_t *s) {
54  uint_t j;
55  for (j=0; j< s->length; j++) {
56    AUBIO_MSG(AUBIO_SMPL_FMT " ", s->data[j]);
57  }
58  AUBIO_MSG("\n");
59}
60
61void fvec_set(fvec_t *s, smpl_t val) {
62  uint_t j;
63  for (j=0; j< s->length; j++) {
64    s->data[j] = val;
65  }
66}
67
68void fvec_zeros(fvec_t *s) {
69#if HAVE_MEMCPY_HACKS
70  memset(s->data, 0, s->length * sizeof(smpl_t));
71#else
72  fvec_set(s, 0.);
73#endif
74}
75
76void fvec_ones(fvec_t *s) {
77  fvec_set(s, 1.);
78}
79
80void fvec_rev(fvec_t *s) {
81  uint_t j;
82  for (j=0; j< FLOOR(s->length/2); j++) {
83    ELEM_SWAP(s->data[j], s->data[s->length-1-j]);
84  }
85}
86
87void fvec_weight(fvec_t *s, fvec_t *weight) {
88  uint_t j;
89  uint_t length = MIN(s->length, weight->length);
90  for (j=0; j< length; j++) {
91    s->data[j] *= weight->data[j];
92  }
93}
94
95void fvec_copy(fvec_t *s, fvec_t *t) {
96  if (s->length != t->length) {
97    AUBIO_ERR("trying to copy %d elements to %d elements \n",
98        s->length, t->length);
99    return;
100  }
101#if HAVE_MEMCPY_HACKS
102  memcpy(t->data, s->data, t->length * sizeof(smpl_t));
103#else
104  uint_t j;
105  for (j=0; j< t->length; j++) {
106    t->data[j] = s->data[j];
107  }
108#endif
109}
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