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mtdm.h

/*
    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__ */

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