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SDRPlusPlus/decoder_modules/m17_decoder/src/main.cpp

310 wiersze
9.6 KiB
C++
Czysty Wina Historia

#include <imgui.h>
#include <config.h>
#include <core.h>
#include <gui/style.h>
#include <gui/gui.h>
#include <signal_path/signal_path.h>
#include <module.h>
#include <filesystem>
#include <dsp/stream.h>
#include <dsp/buffer/reshaper.h>
#include <dsp/multirate/rational_resampler.h>
#include <dsp/sink/handler_sink.h>
#include <gui/widgets/folder_select.h>
#include <gui/widgets/symbol_diagram.h>
#include <m17dsp.h>
#include <fstream>
#include <chrono>
#define CONCAT(a, b) ((std::string(a) + b).c_str())
SDRPP_MOD_INFO{
/* Name: */ "m17_decoder",
/* Description: */ "M17 Digital Voice Decoder for SDR++",
/* Author: */ "Ryzerth",
/* Version: */ 0, 1, 0,
/* Max instances */ -1
};
ConfigManager config;
#define INPUT_SAMPLE_RATE 14400
class M17DecoderModule : public ModuleManager::Instance {
public:
M17DecoderModule(std::string name) : diag(0.6, 480) {
this->name = name;
lsf.valid = false;
// Load config
config.acquire();
if (!config.conf.contains(name)) {
config.conf[name]["showLines"] = false;
}
showLines = config.conf[name]["showLines"];
if (showLines) {
diag.lines.push_back(-1.0);
diag.lines.push_back(-1.0/3.0);
diag.lines.push_back(1.0/3.0);
diag.lines.push_back(1.0);
}
config.release(true);
// Initialize VFO
vfo = sigpath::vfoManager.createVFO(name, ImGui::WaterfallVFO::REF_CENTER, 0, 9600, INPUT_SAMPLE_RATE, 9600, 9600, true);
vfo->setSnapInterval(250);
// Initialize DSP here
decoder.init(vfo->output, INPUT_SAMPLE_RATE, lsfHandler, this);
resamp.init(decoder.out, 8000, audioSampRate);
reshape.init(decoder.diagOut, 480, 0);
diagHandler.init(&reshape.out, _diagHandler, this);
// Start DSO Here
decoder.start();
resamp.start();
reshape.start();
diagHandler.start();
// Setup audio stream
srChangeHandler.ctx = this;
srChangeHandler.handler = sampleRateChangeHandler;
stream.init(&resamp.out, &srChangeHandler, audioSampRate);
sigpath::sinkManager.registerStream(name, &stream);
stream.start();
gui::menu.registerEntry(name, menuHandler, this, this);
}
~M17DecoderModule() {
gui::menu.removeEntry(name);
// Stop DSP Here
stream.stop();
if (enabled) {
decoder.stop();
resamp.stop();
reshape.stop();
diagHandler.stop();
sigpath::vfoManager.deleteVFO(vfo);
}
sigpath::sinkManager.unregisterStream(name);
}
void postInit() {}
void enable() {
double bw = gui::waterfall.getBandwidth();
vfo = sigpath::vfoManager.createVFO(name, ImGui::WaterfallVFO::REF_CENTER, std::clamp<double>(0, -bw / 2.0, bw / 2.0), 9600, INPUT_SAMPLE_RATE, 9600, 9600, true);
vfo->setSnapInterval(250);
// Set Input of demod here
decoder.setInput(vfo->output);
// Start DSP here
decoder.start();
resamp.start();
reshape.start();
diagHandler.start();
enabled = true;
}
void disable() {
// Stop DSP here
decoder.stop();
resamp.stop();
reshape.stop();
diagHandler.stop();
sigpath::vfoManager.deleteVFO(vfo);
enabled = false;
}
bool isEnabled() {
return enabled;
}
private:
static void menuHandler(void* ctx) {
M17DecoderModule* _this = (M17DecoderModule*)ctx;
float menuWidth = ImGui::GetContentRegionAvail().x;
if (!_this->enabled) { style::beginDisabled(); }
ImGui::SetNextItemWidth(menuWidth);
_this->diag.draw();
{
std::lock_guard lck(_this->lsfMtx);
auto now = std::chrono::high_resolution_clock::now();
if (std::chrono::duration_cast<std::chrono::milliseconds>(now - _this->lastUpdated).count() > 1000) {
_this->lsf.valid = false;
}
ImGui::BeginTable(CONCAT("##m17_info_tbl_", _this->name), 2, ImGuiTableFlags_SizingFixedFit | ImGuiTableFlags_RowBg | ImGuiTableFlags_Borders);
if (!_this->lsf.valid) {
ImGui::TableNextRow();
ImGui::TableSetColumnIndex(0);
ImGui::TextUnformatted("Source");
ImGui::TableSetColumnIndex(1);
ImGui::TextUnformatted("--");
ImGui::TableNextRow();
ImGui::TableSetColumnIndex(0);
ImGui::TextUnformatted("Destination");
ImGui::TableSetColumnIndex(1);
ImGui::TextUnformatted("--");
ImGui::TableNextRow();
ImGui::TableSetColumnIndex(0);
ImGui::TextUnformatted("Data Type");
ImGui::TableSetColumnIndex(1);
ImGui::TextUnformatted("--");
ImGui::TableNextRow();
ImGui::TableSetColumnIndex(0);
ImGui::TextUnformatted("Encryption");
ImGui::TableSetColumnIndex(1);
ImGui::TextUnformatted("-- (Subtype --)");
ImGui::TableNextRow();
ImGui::TableSetColumnIndex(0);
ImGui::TextUnformatted("CAN");
ImGui::TableSetColumnIndex(1);
ImGui::TextUnformatted("--");
}
else {
ImGui::TableNextRow();
ImGui::TableSetColumnIndex(0);
ImGui::TextUnformatted("Source");
ImGui::TableSetColumnIndex(1);
ImGui::TextUnformatted(_this->lsf.src.c_str());
ImGui::TableNextRow();
ImGui::TableSetColumnIndex(0);
ImGui::TextUnformatted("Destination");
ImGui::TableSetColumnIndex(1);
ImGui::TextUnformatted(_this->lsf.dst.c_str());
ImGui::TableNextRow();
ImGui::TableSetColumnIndex(0);
ImGui::TextUnformatted("Data Type");
ImGui::TableSetColumnIndex(1);
ImGui::TextUnformatted(M17DataTypesTxt[_this->lsf.dataType]);
ImGui::TableNextRow();
ImGui::TableSetColumnIndex(0);
ImGui::TextUnformatted("Encryption");
ImGui::TableSetColumnIndex(1);
ImGui::Text("%s (Subtype %d)", M17EncryptionTypesTxt[_this->lsf.encryptionType], _this->lsf.encryptionSubType);
ImGui::TableNextRow();
ImGui::TableSetColumnIndex(0);
ImGui::TextUnformatted("CAN");
ImGui::TableSetColumnIndex(1);
ImGui::Text("%d", _this->lsf.channelAccessNum);
}
ImGui::EndTable();
}
if (ImGui::Checkbox(CONCAT("Show Reference Lines##m17_showlines_", _this->name), &_this->showLines)) {
if (_this->showLines) {
_this->diag.lines.push_back(-1.0);
_this->diag.lines.push_back(-1.0/3.0);
_this->diag.lines.push_back(1.0/3.0);
_this->diag.lines.push_back(1.0);
}
else {
_this->diag.lines.clear();
}
config.acquire();
config.conf[_this->name]["showLines"] = _this->showLines;
config.release(true);
}
ImGui::TextUnformatted("Status:");
ImGui::SameLine();
if (_this->decoder.isReceiving()) {
ImGui::TextColored(ImVec4(0.0, 1.0, 0.0, 1.0), "Receiving");
}
else {
ImGui::TextUnformatted("Idle");
}
if (!_this->enabled) { style::endDisabled(); }
}
static void _diagHandler(float* data, int count, void* ctx) {
M17DecoderModule* _this = (M17DecoderModule*)ctx;
float* buf = _this->diag.acquireBuffer();
memcpy(buf, data, count * sizeof(float));
_this->diag.releaseBuffer();
}
static void sampleRateChangeHandler(float sampleRate, void* ctx) {
M17DecoderModule* _this = (M17DecoderModule*)ctx;
// TODO: If too slow, change all demods here and not when setting
_this->audioSampRate = sampleRate;
_this->resamp.tempStop();
_this->resamp.setOutSamplerate(sampleRate);
_this->resamp.tempStart();
}
static void lsfHandler(M17LSF& lsf, void* ctx) {
M17DecoderModule* _this = (M17DecoderModule*)ctx;
std::lock_guard lck(_this->lsfMtx);
_this->lastUpdated = std::chrono::high_resolution_clock::now();
_this->lsf = lsf;
}
std::string name;
bool enabled = true;
// DSP Chain
VFOManager::VFO* vfo;
dsp::M17Decoder decoder;
dsp::buffer::Reshaper<float> reshape;
dsp::sink::Handler<float> diagHandler;
dsp::multirate::RationalResampler<dsp::stereo_t> resamp;
ImGui::SymbolDiagram diag;
double audioSampRate = 48000;
EventHandler<float> srChangeHandler;
SinkManager::Stream stream;
bool showLines = false;
M17LSF lsf;
std::mutex lsfMtx;
std::chrono::time_point<std::chrono::high_resolution_clock> lastUpdated;
};
MOD_EXPORT void _INIT_() {
// Create default recording directory
json def = json({});
config.setPath(core::args["root"].s() + "/m17_decoder_config.json");
config.load(def);
config.enableAutoSave();
}
MOD_EXPORT ModuleManager::Instance* _CREATE_INSTANCE_(std::string name) {
return new M17DecoderModule(name);
}
MOD_EXPORT void _DELETE_INSTANCE_(void* instance) {
delete (M17DecoderModule*)instance;
}
MOD_EXPORT void _END_() {
config.disableAutoSave();
config.save();
}
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