aubio: temporal/resampler.h Source File

aubio 0.4.9

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resampler.h
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1/*
2 Copyright (C) 2003-2015 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#ifndef AUBIO_RESAMPLER_H
22#define AUBIO_RESAMPLER_H
23
24/** \file
25
26 Resampling object
27
28 This object resamples an input vector into an output vector using
29 libsamplerate. See http://www.mega-nerd.com/SRC/
30
31*/
32
33#ifdef __cplusplus
34extern "C" {
35#endif
36
37/** resampler object */
38 typedef struct _aubio_resampler_t aubio_resampler_t;
39
40/** create resampler object
41
42 \param ratio output_sample_rate / input_sample_rate
43 \param type libsamplerate resampling type, see http://www.mega-nerd.com/SRC/api_misc.html#Converters
44
45*/
46 aubio_resampler_t *new_aubio_resampler (smpl_t ratio, uint_t type);
47
48/** delete resampler object */
49 void del_aubio_resampler (aubio_resampler_t * s);
50
51/** resample input in output
52
53 \param s resampler object
54 \param input input buffer of size N
55 \param output output buffer of size N*ratio
56
57*/
58 void aubio_resampler_do (aubio_resampler_t * s, const fvec_t * input,
59 fvec_t * output);
60
61#ifdef __cplusplus
62}
63#endif
64
65#endif /* AUBIO_RESAMPLER_H */
aubio_resampler_t
struct _aubio_resampler_t aubio_resampler_t
resampler object
Definition resampler.h:38
new_aubio_resampler
aubio_resampler_t * new_aubio_resampler(smpl_t ratio, uint_t type)
create resampler object
del_aubio_resampler
void del_aubio_resampler(aubio_resampler_t *s)
delete resampler object
aubio_resampler_do
void aubio_resampler_do(aubio_resampler_t *s, const fvec_t *input, fvec_t *output)
resample input in output
fvec_t
Buffer for real data.
Definition fvec.h:67
uint_t
unsigned int uint_t
unsigned integer
Definition types.h:60
smpl_t
float smpl_t
short sample format (32 or 64 bits)
Definition types.h:41