/home/marsyas/marsyas/src/marsyas/Accumulator.h

/*
** Copyright (C) 1998-2006 George Tzanetakis <gtzan@cs.uvic.ca>
**
** 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 FITNAESS 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/

#ifndef MARSYAS_ACCUMULATOR_H
#define MARSYAS_ACCUMULATOR_H

#include "MarSystem.h"

namespace Marsyas
{

class Accumulator: public MarSystem
{
private:
    MarControlPtr ctrl_nTimes_;
    MarControlPtr ctrl_maxTimes_;
    MarControlPtr ctrl_minTimes_;
    MarControlPtr ctrl_timesToKeep_;

    MarControlPtr ctrl_flush_;
    MarControlPtr ctrl_mode_;

    mrs_natural nTimes_;

    mrs_natural childOnSamples_;
    mrs_natural keptOnSamples_;

    realvec childOut_;
    realvec tout_;

    void addControls();
    void myUpdate(MarControlPtr sender);

public:
    Accumulator(std::string name);
    Accumulator(const Accumulator& a);
    ~Accumulator();
    MarSystem* clone() const;

    void myProcess(realvec& in, realvec& out);
    bool addMarSystem(MarSystem *marsystem);

};

}//namespace Marsyas

#endif

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