/*  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 __cplusplusextern "C" {#endif /** histogram object */typedef struct _aubio_hist_t aubio_hist_t;#pragma incomplete 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 */