minibpm.h

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/* -*- c-basic-offset: 4 indent-tabs-mode: nil -*-  vi:set ts=8 sts=4 sw=4: */
 
/*
    MiniBPM
    A fixed-tempo BPM estimator for music audio
    Copyright 2012 Particular Programs Ltd.
 
    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.  See the file
    COPYING included with this distribution for more information.
 
    Alternatively, if you have a valid commercial licence for MiniBPM
    obtained by agreement with the copyright holders, you may
    redistribute and/or modify it under the terms described in that
    licence.
 
    If you wish to distribute code using MiniBPM under terms other
    than those of the GNU General Public License, you must obtain a
    valid commercial licence before doing so.
*/
 
#ifndef _BQ_MINI_BPM_H_
#define _BQ_MINI_BPM_H_
 
#include <vector>
 
namespace breakfastquay {
 
class MiniBPM
{
public:
    MiniBPM(float sampleRate);
    ~MiniBPM();
 
    void setBPMRange(double min, double max);
    void getBPMRange(double &min, double &max) const;
 
    void setBeatsPerBar(int bpb);
    int getBeatsPerBar() const;
 
    double estimateTempoOfSamples(const float *samples, int nsamples);
 
    void process(const float *samples, int nsamples);
 
    double estimateTempo();
 
    std::vector<double> getTempoCandidates() const;
 
    void reset();
 
private:
    class D;
    D *m_d;
};
 
}
 
#endif