/*
    Copyright (C) 2003-2008 Fons Adriaensen <fons@kokkinizita.net>
    
    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.
*/

#ifndef __libardour_mtdm_h__
#define __libardour_mtdm_h__

#include <cstdlib>
#include <cstdio>
#include <cmath>
#include <unistd.h>

class MTDM {
  public:
	
	 MTDM ();
	 
	 int process (size_t len, float *inp, float *out);
	 int resolve (void);
	 void invert (void) { _inv ^= 1; }
	 int    inv (void) { return _inv; }
	 double del (void) { return _del; }
	 double err (void) { return _err; }

   private:
	 class Freq {
	   public:
		 int   p;
		 int   f;
		 float a;
		 float xa;
		 float ya;
		 float xf;
		 float yf;
	 };

	 double  _del;
	 double  _err;
	 int     _cnt;
	 int     _inv;
	 Freq    _freq [5];
};

#endif /* __libardour_mtdm_h__ */