ref: ef7df7698cf744f3d43859eb304e4ea4d69d4bfa
dir: /src/tempo.h/
/*
Copyright (C) 2006 Paul Brossier
This program 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 2 of the License, or
(at your option) any later version.
This program 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 this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
/** \file
Tempo detection driver
This object stores all the memory required for tempo detection algorithm
and returns the estimated beat locations.
*/
#ifndef TEMPO_H
#define TEMPO_H
#ifdef __cplusplus
extern "C" {
#endif
/** tempo detection structure */
typedef struct _aubio_tempo_t aubio_tempo_t;
/** create tempo detection object */
aubio_tempo_t * new_aubio_tempo (aubio_onsetdetection_type type_onset,
uint_t buf_size, uint_t hop_size, uint_t channels);
/** execute tempo detection */
void aubio_tempo(aubio_tempo_t *o, fvec_t * input, fvec_t * tempo);
/** set tempo detection silence threshold */
void aubio_tempo_set_silence(aubio_tempo_t * o, smpl_t silence);
/** set tempo detection peak picking threshold */
void aubio_tempo_set_threshold(aubio_tempo_t * o, smpl_t threshold);
/** get current tempo
\param bt beat tracking object
Returns the currently observed tempo, or 0 if no consistent value is found
*/
smpl_t aubio_tempo_get_bpm(aubio_tempo_t * bt);
/** get current tempo confidence
\param bt beat tracking object
Returns the confidence with which the tempo has been observed, 0 if no
consistent value is found.
*/
smpl_t aubio_tempo_get_confidence(aubio_tempo_t * bt);
/** delete tempo detection object */
void del_aubio_tempo(aubio_tempo_t * o);
#ifdef __cplusplus
}
#endif
#endif /* TEMPO_H */