98 lines
2.7 KiB
C++
98 lines
2.7 KiB
C++
/* -*- c++ -*- */
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/*
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* gr-satnogs: SatNOGS GNU Radio Out-Of-Tree Module
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*
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* Copyright (C) 2016, Libre Space Foundation <http://librespacefoundation.org/>
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#include <gnuradio/io_signature.h>
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#include "afsk_decoder_impl.h"
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namespace gr
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{
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namespace satnogs
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{
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afsk_decoder::sptr
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afsk_decoder::make (double sampling_rate, size_t samples_per_sym,
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size_t fft_size,
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bool auto_carrier_tracking,
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double mark_freq,
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double space_freq)
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{
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return gnuradio::get_initial_sptr (
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new afsk_decoder_impl (sampling_rate, samples_per_sym, fft_size,
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auto_carrier_tracking,
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mark_freq, space_freq));
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}
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/*
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* The private constructor
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*/
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afsk_decoder_impl::afsk_decoder_impl (double sampling_rate, size_t samples_per_sym,
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size_t fft_size,
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bool auto_carrier_tracking,
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double mark_freq, double space_freq) :
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gr::block ("afsk_decoder",
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gr::io_signature::make (1, 1, fft_size * sizeof(float)),
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gr::io_signature::make (1, 1, sizeof(char))),
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d_samp_rate(sampling_rate),
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d_samples_per_sym(samples_per_sym),
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d_fft_size(fft_size),
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d_carriers_found(!auto_carrier_tracking),
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d_mark_freq(mark_freq),
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d_space_freq(space_freq)
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{
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if(auto_carrier_tracking){
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d_mark_freq = d_space_freq = 0.0;
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}
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}
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/*
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* Our virtual destructor.
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*/
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afsk_decoder_impl::~afsk_decoder_impl ()
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{
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}
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void
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afsk_decoder_impl::forecast (int noutput_items,
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gr_vector_int &ninput_items_required)
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{
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ninput_items_required[0] = noutput_items;
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}
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int
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afsk_decoder_impl::general_work (int noutput_items,
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gr_vector_int &ninput_items,
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gr_vector_const_void_star &input_items,
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gr_vector_void_star &output_items)
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{
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const float *in = (const float *) input_items[0];
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consume_each (noutput_items);
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// Tell runtime system how many output items we produced.
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return noutput_items;
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}
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} /* namespace satnogs */
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} /* namespace gr */
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