ref: 3beacb38cc3ea159fb66bcc2c2bd675d5678996c
dir: /src/utils/hist.h/
/*
Copyright (C) 2003-2013 Paul Brossier <piem@aubio.org>
This file is part of aubio.
aubio is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
aubio is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with aubio. If not, see <http://www.gnu.org/licenses/>.
*/
/** @file
*
* Histogram function
*
* Big hacks to implement an histogram
*/
#ifndef AUBIO_HIST_H
#define AUBIO_HIST_H
#ifdef __cplusplus
extern "C" {
#endif
/** histogram object */
typedef struct _aubio_hist_t aubio_hist_t;
/** histogram creation
\param flow minimum input
\param fhig maximum input
\param nelems number of histogram columns
*/
aubio_hist_t * new_aubio_hist(smpl_t flow, smpl_t fhig, uint_t nelems);
/** histogram deletion */
void del_aubio_hist(aubio_hist_t *s);
/** compute the histogram */
void aubio_hist_do(aubio_hist_t *s, fvec_t * input);
/** compute the histogram ignoring null elements */
void aubio_hist_do_notnull(aubio_hist_t *s, fvec_t * input);
/** compute the mean of the histogram */
smpl_t aubio_hist_mean(const aubio_hist_t *s);
/** weight the histogram */
void aubio_hist_weight(aubio_hist_t *s);
/** compute dynamic histogram for non-null elements */
void aubio_hist_dyn_notnull (aubio_hist_t *s, fvec_t *input);
#ifdef __cplusplus
}
#endif
#endif /* AUBIO_HIST_H */