portapack-mayhem/firmware/baseband/proc_am_tv.hpp

/*
 * Copyright (C) 2014 Jared Boone, ShareBrained Technology, Inc.
 * Copyright (C) 2016 Furrtek
 * Copyright (C) 2020 Shao
 *
 * 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 __PROC_AM_TV_H__
#define __PROC_AM_TV_H__

#include "baseband_processor.hpp"
#include "baseband_thread.hpp"
#include "rssi_thread.hpp"

#include "dsp_types.hpp"
#include "dsp_decimate.hpp"
#include "dsp_demodulate.hpp"
#include "block_decimator.hpp"

#include "tv_collector.hpp"

class WidebandFMAudio : public BasebandProcessor {
   public:
    void execute(const buffer_c8_t& buffer) override;

    void on_message(const Message* const message) override;

   private:
    static constexpr size_t baseband_fs = 2000000;

    BasebandThread baseband_thread{baseband_fs, this, NORMALPRIO + 20, baseband::Direction::Receive};
    RSSIThread rssi_thread{NORMALPRIO + 10};

    std::array<complex16_t, 512> dst{};
    const buffer_c16_t dst_buffer{
        dst.data(),
        dst.size()};

    AudioSpectrum audio_spectrum{};
    TvCollector channel_spectrum{};
    std::array<complex16_t, 256> spectrum{};

    bool configured{false};
    void configure(const WFMConfigureMessage& message);
};

#endif /*__PROC_AM_TV_H__*/