/* -*- c++ -*- */
/*
 * Copyright 2008,2013,2017-2018 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 MOVING_AVERAGE_IMPL_H
#define MOVING_AVERAGE_IMPL_H

#include <gnuradio/blocks/moving_average.h>
#include <algorithm>
#include <vector>

namespace gr {
namespace blocks {

template <class T>
class moving_average_impl : public moving_average<T>
{
private:
    int d_length;
    T d_scale;
    int d_max_iter;
    unsigned int d_vlen;
    std::vector<T> d_sum;


    int d_new_length;
    T d_new_scale;
    bool d_updated;

public:
    moving_average_impl(int length, T scale, int max_iter = 4096, unsigned int vlen = 1);
    ~moving_average_impl();

    int length() const { return d_new_length; }
    T scale() const { return d_new_scale; }
    unsigned int vlen() const { return d_vlen; }

    void set_length_and_scale(int length, T scale);
    void set_length(int length);
    void set_scale(T scale);

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

} /* namespace blocks */
} /* namespace gr */

#endif /* MOVING_AVERAGE_IMPL_H */