portapack-mayhem/firmware/baseband/spectrum_collector.hpp

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/*
* Copyright (C) 2015 Jared Boone, ShareBrained Technology, Inc.
*
* This file is part of PortaPack.
*
* This program 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 2, or (at your option)
* any later version.
*
* This program 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 program; see the file COPYING. If not, write to
* the Free Software Foundation, Inc., 51 Franklin Street,
* Boston, MA 02110-1301, USA.
*/
#ifndef __SPECTRUM_COLLECTOR_H__
#define __SPECTRUM_COLLECTOR_H__
#include "dsp_types.hpp"
#include "complex.hpp"
#include "block_decimator.hpp"
#include <cstdint>
#include <array>
#include "message.hpp"
class SpectrumCollector {
public:
constexpr SpectrumCollector(
) : channel_spectrum_decimator { 1 }
{
}
void on_message(const Message* const message);
void set_decimation_factor(const size_t decimation_factor);
void feed(
const buffer_c16_t& channel,
const uint32_t filter_pass_frequency,
const uint32_t filter_stop_frequency
);
private:
BlockDecimator<complex16_t, 256> channel_spectrum_decimator;
ChannelSpectrumFIFO fifo;
volatile bool channel_spectrum_request_update { false };
bool streaming { false };
std::array<std::complex<float>, 256> channel_spectrum;
uint32_t channel_spectrum_sampling_rate { 0 };
uint32_t channel_filter_pass_frequency { 0 };
uint32_t channel_filter_stop_frequency { 0 };
void post_message(const buffer_c16_t& data);
void set_state(const SpectrumStreamingConfigMessage& message);
void start();
void stop();
void update();
};
#endif/*__SPECTRUM_COLLECTOR_H__*/