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WeFax rx ext app (#2566)

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* wf3

* Ookbrute (#2354)

* Revert "Ookbrute (#2354)"

This reverts commit abb8143eec.

* 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
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Totoo 2025-03-19 00:31:40 +01:00 • committed by GitHub
parent 717d615f4f
commit 4aa5fc1fbe
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16 changed files with 752 additions and 2 deletions
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104
firmware/baseband/proc_wefaxrx.hpp Normal file
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/*
* Copyright (C) 2025 Brumi, HTotoo
*
* 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_WEFAXRX_H__
#define __PROC_WEFAXRX_H__
#include "baseband_processor.hpp"
#include "baseband_thread.hpp"
#include "rssi_thread.hpp"
#include "dsp_decimate.hpp"
#include "dsp_demodulate.hpp"
#include "dsp_iir.hpp"
#include "audio_compressor.hpp"
#include "audio_output.hpp"
#include "spectrum_collector.hpp"
#include <cstdint>
class WeFaxRx : public BasebandProcessor {
public:
void execute(const buffer_c8_t& buffer) override;
void on_message(const Message* const message) override;
private:
void update_params();
// todo rethink
uint8_t lpm = 120; // 60, 90, 100, 120, 180, 240 lpm
uint8_t ioc_mode = 0; // 0 - ioc576, 1 - ioc 288, 2 - colour fax
uint32_t samples_per_pixel = 0;
// not yet used:
uint32_t time_start_tone = 3000; // 3s - 5s
uint32_t freq_start_tone = 300; // 300hz for ioc576 675hz for ioc288, 200hz for colour fax
uint32_t freq_stop_tone = 450; // 450hz for the 3-5s stop tone
// to exactly match the pixel / samples.
double pxRem = 0; // if has remainder, it'll store it
double pxRoll = 0; // summs remainders, so won't misalign
uint32_t cnt = 0; // signal counter
uint16_t sync_cnt = 0;
uint16_t syncnot_cnt = 0;
static constexpr size_t baseband_fs = 3072000;
static constexpr size_t decim_2_decimation_factor = 4;
static constexpr size_t channel_filter_decimation_factor = 1;
std::array<complex16_t, 512> dst{};
const buffer_c16_t dst_buffer{
dst.data(),
dst.size()};
std::array<float, 32> audio{};
const buffer_f32_t audio_buffer{
audio.data(),
audio.size()};
size_t channel_filter_input_fs = 0;
dsp::decimate::FIRC8xR16x24FS4Decim8 decim_0{};
dsp::decimate::FIRC16xR16x32Decim8 decim_1{};
dsp::decimate::FIRAndDecimateComplex decim_2{};
dsp::decimate::FIRAndDecimateComplex channel_filter{};
int32_t channel_filter_low_f = 0;
int32_t channel_filter_high_f = 0;
int32_t channel_filter_transition = 0;
bool configured{false};
dsp::demodulate::SSB_FM demod_ssb_fm{}; // added for Wfax mode.
FeedForwardCompressor audio_compressor{};
AudioOutput audio_output{};
SpectrumCollector channel_spectrum{};
void configure(const WeFaxRxConfigureMessage& message);
void capture_config(const CaptureConfigMessage& message);
WeFaxRxStatusDataMessage status_message{0};
WeFaxRxImageDataMessage image_message{};
/* NB: Threads should be the last members in the class definition. */
BasebandThread baseband_thread{baseband_fs, this, baseband::Direction::Receive};
RSSIThread rssi_thread{};
};
#endif /*__PROC_WEFAXRX_H__*/