view libs/aubioFullOSXUni/include/aubio/tempo.h @ 1:ba2a17cf81bf

first working version of audio file loder. Loads bach clip from the apps->audio-file-loader->bin->data->sounds foler. Three classes: SoundFileLoader does the loading and parsing of thefile with libSndFile. audio samples are kept in AudioFile and analysis of features are kept in AudioAnalysis, at this stage just chromagramm and basic energy

/*
   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, 
    ba_uint_t buf_size, ba_uint_t hop_size, ba_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);

/** delete tempo detection object */
void del_aubio_tempo(aubio_tempo_t * o);

#ifdef __cplusplus
}
#endif

#endif /* TEMPO_H */