kopia lustrzana https://github.com/proto17/dji_droneid
71 wiersze
2.1 KiB
C++
71 wiersze
2.1 KiB
C++
/* -*- c++ -*- */
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/*
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* Copyright 2022 gr-droneid author.
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*
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* This 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, or (at your option)
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* any later version.
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*
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* This software 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 software; see the file COPYING. If not, write to
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* the Free Software Foundation, Inc., 51 Franklin Street,
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* Boston, MA 02110-1301, USA.
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*/
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#ifndef INCLUDED_DRONEID_EXTRACTOR_IMPL_H
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#define INCLUDED_DRONEID_EXTRACTOR_IMPL_H
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#include <droneid/extractor.h>
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namespace gr {
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namespace droneid {
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class extractor_impl : public extractor {
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private:
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enum class state_t {
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WAITING_FOR_THRESHOLD,
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COLLECTING_SAMPLES
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};
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static constexpr float CARRIER_SPACING = 15e3;
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uint64_t start_sample_index_;
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uint64_t total_samples_read_;
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state_t current_state_;
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uint32_t collected_samples_;
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const uint32_t fft_size_;
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const uint32_t long_cp_len_;
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const uint32_t short_cp_len_;
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const uint32_t extract_samples_count_;
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std::vector<gr_complex> buffer_;
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float threshold_;
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std::mutex parameter_lock_;
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public:
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extractor_impl(double sample_rate, float threshold);
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~extractor_impl();
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void set_threshold(float threshold) override;
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// Where all the action really happens
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int work(
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int noutput_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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};
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} // namespace droneid
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} // namespace gr
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#endif /* INCLUDED_DRONEID_EXTRACTOR_IMPL_H */
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