2 Copyright (C) 2003-2013 Paul Brossier <piem@aubio.org>
4 This file is part of aubio.
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.
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.
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/>.
25 * Big hacks to implement an histogram
35 /** histogram object */
36 typedef struct _aubio_hist_t aubio_hist_t;
38 /** histogram creation
40 \param flow minimum input
41 \param fhig maximum input
42 \param nelems number of histogram columns
45 aubio_hist_t * new_aubio_hist(smpl_t flow, smpl_t fhig, uint_t nelems);
46 /** histogram deletion */
47 void del_aubio_hist(aubio_hist_t *s);
48 /** compute the histogram */
49 void aubio_hist_do(aubio_hist_t *s, fvec_t * input);
50 /** compute the histogram ignoring null elements */
51 void aubio_hist_do_notnull(aubio_hist_t *s, fvec_t * input);
52 /** compute the mean of the histogram */
53 smpl_t aubio_hist_mean(aubio_hist_t *s);
54 /** weight the histogram */
55 void aubio_hist_weight(aubio_hist_t *s);
56 /** compute dynamic histogram for non-null elements */
57 void aubio_hist_dyn_notnull (aubio_hist_t *s, fvec_t *input);
63 #endif /* _AUBIO_HIST_H */