/* Finite Impulse Response (FIR) filter

Copyright (C) 2001-2002 Andrew Rogers

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., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA */

#include <stdlib.h>

class FIR
{
private:
	double *h;
        double *delay;
        int n;
public:
	FIR(int order, double *coeffs, double *init=NULL);
        double sample(double x);
        ~FIR();
};