source: src/utils/hist.h @ e6a78ea

feature/autosinkfeature/cnnfeature/cnn_orgfeature/constantqfeature/crepefeature/crepe_orgfeature/pitchshiftfeature/pydocstringsfeature/timestretchfix/ffmpeg5pitchshiftsamplertimestretchyinfft+
Last change on this file since e6a78ea was e6a78ea, checked in by Paul Brossier <piem@piem.org>, 14 years ago

src: update all headers to GPLv3

  • Property mode set to 100644
File size: 1.7 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/** @file
22 *
23 * Histogram function
24 *
25 * Big hacks to implement an histogram
26 */
27
28#ifndef HIST_H
29#define HIST_H
30
31#ifdef __cplusplus
32extern "C" {
33#endif
34
35/** histogram object */
36typedef struct _aubio_hist_t aubio_hist_t;
37
38/** histogram creation
39 * \param flow minimum input
40 * \param fhig maximum input
41 * \param nelems number of histogram columns
42 * \param channels number of channels
43 */
44aubio_hist_t * new_aubio_hist(smpl_t flow, smpl_t fhig, uint_t nelems, uint_t channels);
45/** histogram deletion */
46void del_aubio_hist(aubio_hist_t *s);
47/** compute the histogram */
48void aubio_hist_do(aubio_hist_t *s, fvec_t * input);
49/** compute the histogram ignoring null elements */
50void aubio_hist_do_notnull(aubio_hist_t *s, fvec_t * input);
51/** compute the mean of the histogram */
52smpl_t aubio_hist_mean(aubio_hist_t *s);
53/** weight the histogram */
54void aubio_hist_weight(aubio_hist_t *s);
55/** compute dynamic histogram for non-null elements */
56void aubio_hist_dyn_notnull (aubio_hist_t *s, fvec_t *input);
57
58#ifdef __cplusplus
59}
60#endif
61
62#endif
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