Files
GnuRadio/gr-jay/lib/frequency_tuner_impl.cc
2019-06-18 17:29:55 +00:00

82 lines
2.4 KiB
C++

/* -*- c++ -*- */
/*
* Copyright 2019 Jay Arrowfield.
*
* This 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.
*
* This software 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 software; see the file COPYING. If not, write to
* the Free Software Foundation, Inc., 51 Franklin Street,
* Boston, MA 02110-1301, USA.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <gnuradio/io_signature.h>
#include "frequency_tuner_impl.h"
namespace gr {
namespace jay {
frequency_tuner::sptr
frequency_tuner::make(float freq_min, float freq_max, float freq_step)
{
return gnuradio::get_initial_sptr
(new frequency_tuner_impl(freq_min, freq_max, freq_step));
}
/*
* The private constructor
*/
frequency_tuner_impl::frequency_tuner_impl(float freq_min, float freq_max, float freq_step)
: gr::block("frequency_tuner", gr::io_signature::make(1, 1, sizeof(gr_complex)), gr::io_signature::make(1, 1, sizeof(gr_complex)))
, m_freq_min(freq_min)
, m_freq_max(freq_max)
, m_freq_step(freq_step)
{}
/*
* Our virtual destructor.
*/
frequency_tuner_impl::~frequency_tuner_impl()
{
}
void
frequency_tuner_impl::forecast (int noutput_items, gr_vector_int &ninput_items_required)
{
ninput_items_required[0] = noutput_items;
}
int
frequency_tuner_impl::general_work (int noutput_items,
gr_vector_int &ninput_items,
gr_vector_const_void_star &input_items,
gr_vector_void_star &output_items)
{
const gr_complex *in = (const gr_complex *) input_items[0];
gr_complex *out = (gr_complex *) output_items[0];
// Do <+signal processing+>
// Tell runtime system how many input items we consumed on
// each input stream.
consume_each (noutput_items);
// Tell runtime system how many output items we produced.
return noutput_items;
}
} /* namespace jay */
} /* namespace gr */