iir_filter_ffd_impl.h

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/* -*- c++ -*- */
/*
 * Copyright 2004,2012 Free Software Foundation, Inc.
 *
 * This file is part of GNU Radio
 *
 * GNU Radio 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 3, or (at your option)
 * any later version.
 *
 * GNU Radio 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 GNU Radio; see the file COPYING.  If not, write to
 * the Free Software Foundation, Inc., 51 Franklin Street,
 * Boston, MA 02110-1301, USA.
 */

#ifndef INCLUDED_IIR_FILTER_FFD_IMPL_H
#define INCLUDED_IIR_FILTER_FFD_IMPL_H

#include <filter/iir_filter.h>
#include <filter/iir_filter_ffd.h>

namespace gr {
  namespace filter {

    class FILTER_API iir_filter_ffd_impl : public iir_filter_ffd
    {
    private:
      bool d_updated;
      kernel::iir_filter<float,float,double> *d_iir;
      std::vector<double> d_new_fftaps;
      std::vector<double> d_new_fbtaps;

    public:
      iir_filter_ffd_impl(const std::vector<double> &fftaps,
                          const std::vector<double> &fbtaps);
      ~iir_filter_ffd_impl();

      void set_taps(const std::vector<double> &fftaps,
                    const std::vector<double> &fbtaps);

      int work(int noutput_items,
               gr_vector_const_void_star &input_items,
               gr_vector_void_star &output_items);
    };

  } /* namespace filter */
} /* namespace gr */

#endif /* INCLUDED_IIR_FILTER_FFD_IMPL_H */