2 Copyright (C) 2003 Paul Brossier
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.
21 #include <samplerate.h> /* from libsamplerate */
23 #include "aubio_priv.h"
27 struct _aubio_resampler_t {
34 aubio_resampler_t * new_aubio_resampler(float ratio, uint_t type) {
35 aubio_resampler_t * s = AUBIO_NEW(aubio_resampler_t);
37 s->stat = src_new (type, 1, &error) ; /* only one channel */
38 s->proc = AUBIO_NEW(SRC_DATA);
39 if (error) AUBIO_ERR("%s\n",src_strerror(error));
44 void del_aubio_resampler(aubio_resampler_t *s) {
50 uint_t aubio_resampler_process(aubio_resampler_t *s,
51 fvec_t * input, fvec_t * output) {
53 s->proc->input_frames = input->length;
54 s->proc->output_frames = output->length;
55 s->proc->src_ratio = s->ratio;
56 for (i = 0 ; i< input->channels; i++)
58 /* make SRC_PROC data point to input outputs */
59 s->proc->data_in = input->data[i];
60 s->proc->data_out= output->data[i];
62 src_process (s->stat, s->proc) ;