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https://github.com/eried/portapack-mayhem.git
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4aa5fc1fbe
* wf3 * Ookbrute (#2354) * Revert "Ookbrute (#2354)" This reverts commit abb8143eec7b8106a6523f808109f9d394d721f1. * fix * test edition * re enable ble * re enable ert * steal amfm stuff * something happens * save bmp on start btn * kinda works * exit crash fixed * redline, remove some hardcoded * removed cpu killer red line, and some fixes * simplify #1 * seems ok. time to improve * added hidden freq offset to receiver model, so wefax can be set to the "correct" freq without users needs to substract 300 hz * badly implemented sync detection, and disabled it. * fix for fix * fixes * fix offset to real life off * no line on freq enter * fixes
105 lines
3.4 KiB
C++
105 lines
3.4 KiB
C++
/*
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* Copyright (C) 2025 Brumi, HTotoo
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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_WEFAXRX_H__
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#define __PROC_WEFAXRX_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 "dsp_decimate.hpp"
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#include "dsp_demodulate.hpp"
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#include "dsp_iir.hpp"
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#include "audio_compressor.hpp"
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#include "audio_output.hpp"
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#include "spectrum_collector.hpp"
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#include <cstdint>
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class WeFaxRx : public BasebandProcessor {
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public:
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void execute(const buffer_c8_t& buffer) override;
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void on_message(const Message* const message) override;
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private:
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void update_params();
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// todo rethink
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uint8_t lpm = 120; // 60, 90, 100, 120, 180, 240 lpm
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uint8_t ioc_mode = 0; // 0 - ioc576, 1 - ioc 288, 2 - colour fax
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uint32_t samples_per_pixel = 0;
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// not yet used:
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uint32_t time_start_tone = 3000; // 3s - 5s
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uint32_t freq_start_tone = 300; // 300hz for ioc576 675hz for ioc288, 200hz for colour fax
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uint32_t freq_stop_tone = 450; // 450hz for the 3-5s stop tone
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// to exactly match the pixel / samples.
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double pxRem = 0; // if has remainder, it'll store it
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double pxRoll = 0; // summs remainders, so won't misalign
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uint32_t cnt = 0; // signal counter
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uint16_t sync_cnt = 0;
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uint16_t syncnot_cnt = 0;
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static constexpr size_t baseband_fs = 3072000;
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static constexpr size_t decim_2_decimation_factor = 4;
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static constexpr size_t channel_filter_decimation_factor = 1;
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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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std::array<float, 32> audio{};
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const buffer_f32_t audio_buffer{
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audio.data(),
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audio.size()};
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size_t channel_filter_input_fs = 0;
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dsp::decimate::FIRC8xR16x24FS4Decim8 decim_0{};
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dsp::decimate::FIRC16xR16x32Decim8 decim_1{};
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dsp::decimate::FIRAndDecimateComplex decim_2{};
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dsp::decimate::FIRAndDecimateComplex channel_filter{};
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int32_t channel_filter_low_f = 0;
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int32_t channel_filter_high_f = 0;
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int32_t channel_filter_transition = 0;
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bool configured{false};
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dsp::demodulate::SSB_FM demod_ssb_fm{}; // added for Wfax mode.
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FeedForwardCompressor audio_compressor{};
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AudioOutput audio_output{};
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SpectrumCollector channel_spectrum{};
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void configure(const WeFaxRxConfigureMessage& message);
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void capture_config(const CaptureConfigMessage& message);
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WeFaxRxStatusDataMessage status_message{0};
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WeFaxRxImageDataMessage image_message{};
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/* NB: Threads should be the last members in the class definition. */
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BasebandThread baseband_thread{baseband_fs, this, baseband::Direction::Receive};
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RSSIThread rssi_thread{};
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};
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#endif /*__PROC_WEFAXRX_H__*/
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