/*  
    nlfilt.h:

    Copyright (C) 1996 John ffitch, Richard Dobson

    This file is part of Csound.

    Csound 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.

    Csound 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 Csound; if not, write to the Free Software
    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
*/

                        /* Structure for Dobson/Fitch nonlinear filter */
typedef struct  {
        OPDS    h;
        MYFLT   *ar, *in, *a, *b, *d, *C, *L;   /* The parameter */
        AUXCH   delay;          /* Buffer for old values */
        int     point;          /* Pointer to old values */
} NLFILT;

