mirror of
https://github.com/eried/portapack-mayhem.git
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89 lines
2.7 KiB
C++
89 lines
2.7 KiB
C++
/*
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* Copyright (C) 2014 Jared Boone, ShareBrained Technology, Inc.
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*
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* This file is part of PortaPack.
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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 2, or (at your option)
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* 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; 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 __PROC_AIS_H__
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#define __PROC_AIS_H__
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#include "baseband_processor.hpp"
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#include "baseband_thread.hpp"
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#include "rssi_thread.hpp"
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#include "channel_decimator.hpp"
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#include "matched_filter.hpp"
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#include "clock_recovery.hpp"
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#include "symbol_coding.hpp"
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#include "packet_builder.hpp"
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#include "baseband_packet.hpp"
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#include "message.hpp"
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#include <cstdint>
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#include <cstddef>
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#include <bitset>
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#include "ais_baseband.hpp"
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class AISProcessor : public BasebandProcessor {
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public:
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AISProcessor();
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void execute(const buffer_c8_t& buffer) override;
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private:
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static constexpr size_t baseband_fs = 2457600;
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std::array<complex16_t, 512> dst{};
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const buffer_c16_t dst_buffer{
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dst.data(),
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dst.size()};
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dsp::decimate::FIRC8xR16x24FS4Decim8 decim_0{};
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dsp::decimate::FIRC16xR16x32Decim8 decim_1{};
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dsp::matched_filter::MatchedFilter mf{baseband::ais::square_taps_38k4_1t_p, 2};
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clock_recovery::ClockRecovery<clock_recovery::FixedErrorFilter> clock_recovery{
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19200,
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9600,
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{0.0555f},
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[this](const float symbol) { this->consume_symbol(symbol); }};
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symbol_coding::NRZIDecoder nrzi_decode{};
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PacketBuilder<BitPattern, BitPattern, BitPattern> packet_builder{
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{0b0101010101111110, 16, 1},
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{0b111110, 6},
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{0b01111110, 8},
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[this](const baseband::Packet& packet) {
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this->payload_handler(packet);
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}};
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void consume_symbol(const float symbol);
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void payload_handler(const baseband::Packet& packet);
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void on_message(const Message* const message);
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void on_beep_message(const AudioBeepMessage& message);
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/* NB: Threads should be the last members in the class definition. */
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BasebandThread baseband_thread{
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baseband_fs, this, baseband::Direction::Receive, /*auto_start*/ false};
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RSSIThread rssi_thread{};
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};
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#endif /*__PROC_AIS_H__*/
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