2 Copyright (C) 2003-2007 Paul Brossier <piem@piem.org>
4 This program is free software; you can redistribute it and/or modify
5 it under the terms of the GNU General Public License as published by
6 the Free Software Foundation; either version 2 of the License, or
7 (at your option) any later version.
9 This program is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 GNU General Public License for more details.
14 You should have received a copy of the GNU General Public License
15 along with this program; if not, write to the Free Software
16 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
20 #include "aubio_priv.h"
23 fvec_t * new_fvec( uint_t length, uint_t channels) {
24 fvec_t * s = AUBIO_NEW(fvec_t);
26 s->channels = channels;
28 s->data = AUBIO_ARRAY(smpl_t*,s->channels);
29 for (i=0; i< s->channels; i++) {
30 s->data[i] = AUBIO_ARRAY(smpl_t, s->length);
31 for (j=0; j< s->length; j++) {
38 void del_fvec(fvec_t *s) {
40 for (i=0; i<s->channels; i++) {
41 AUBIO_FREE(s->data[i]);
47 void fvec_write_sample(fvec_t *s, smpl_t data, uint_t channel, uint_t position) {
48 s->data[channel][position] = data;
50 smpl_t fvec_read_sample(fvec_t *s, uint_t channel, uint_t position) {
51 return s->data[channel][position];
53 void fvec_put_channel(fvec_t *s, smpl_t * data, uint_t channel) {
54 s->data[channel] = data;
56 smpl_t * fvec_get_channel(fvec_t *s, uint_t channel) {
57 return s->data[channel];
60 smpl_t ** fvec_get_data(fvec_t *s) {
64 /* helper functions */
66 void fvec_print(fvec_t *s) {
68 for (i=0; i< s->channels; i++) {
69 for (j=0; j< s->length; j++) {
70 AUBIO_MSG(AUBIO_SMPL_FMT " ", s->data[i][j]);
76 void fvec_set(fvec_t *s, smpl_t val) {
78 for (i=0; i< s->channels; i++) {
79 for (j=0; j< s->length; j++) {
85 void fvec_zeros(fvec_t *s) {
89 void fvec_ones(fvec_t *s) {
93 void fvec_rev(fvec_t *s) {
95 for (i=0; i< s->channels; i++) {
96 for (j=0; j< FLOOR(s->length/2); j++) {
97 ELEM_SWAP(s->data[i][j], s->data[i][s->length-1-j]);
102 void fvec_weight(fvec_t *s, fvec_t *weight) {
104 uint_t length = MIN(s->length, weight->length);
105 for (i=0; i< s->channels; i++) {
106 for (j=0; j< length; j++) {
107 s->data[i][j] *= weight->data[0][j];
112 void fvec_copy(fvec_t *s, fvec_t *t) {
114 uint_t channels = MIN(s->channels, t->channels);
115 uint_t length = MIN(s->length, t->length);
116 if (s->channels != t->channels) {
117 AUBIO_ERR("warning, trying to copy %d channels to %d channels\n",
118 s->channels, t->channels);
120 if (s->length != t->length) {
121 AUBIO_ERR("warning, trying to copy %d elements to %d elements \n",
122 s->length, t->length);
124 for (i=0; i< channels; i++) {
125 for (j=0; j< length; j++) {
126 t->data[i][j] = s->data[i][j];