118 lines
3.1 KiB
C++
118 lines
3.1 KiB
C++
// Copyright (c) Charles J. Cliffe
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// SPDX-License-Identifier: GPL-2.0+
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#include "ModemDPSK.h"
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ModemDPSK::ModemDPSK() : ModemDigital() {
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demodDPSK2 = modem_create(LIQUID_MODEM_DPSK2);
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demodDPSK4 = modem_create(LIQUID_MODEM_DPSK4);
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demodDPSK8 = modem_create(LIQUID_MODEM_DPSK8);
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demodDPSK16 = modem_create(LIQUID_MODEM_DPSK16);
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demodDPSK32 = modem_create(LIQUID_MODEM_DPSK32);
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demodDPSK64 = modem_create(LIQUID_MODEM_DPSK64);
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demodDPSK128 = modem_create(LIQUID_MODEM_DPSK128);
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demodDPSK256 = modem_create(LIQUID_MODEM_DPSK256);
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demodDPSK = demodDPSK2;
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cons = 2;
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}
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ModemBase *ModemDPSK::factory() {
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return new ModemDPSK;
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}
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std::string ModemDPSK::getName() {
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return "DPSK";
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}
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ModemDPSK::~ModemDPSK() {
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modem_destroy(demodDPSK2);
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modem_destroy(demodDPSK4);
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modem_destroy(demodDPSK8);
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modem_destroy(demodDPSK16);
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modem_destroy(demodDPSK32);
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modem_destroy(demodDPSK64);
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modem_destroy(demodDPSK128);
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modem_destroy(demodDPSK256);
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}
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ModemArgInfoList ModemDPSK::getSettings() {
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ModemArgInfoList args;
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ModemArgInfo consArg;
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consArg.key = "cons";
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consArg.name = "Constellation";
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consArg.description = "Modem Constellation Pattern";
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consArg.value = std::to_string(cons);
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consArg.type = ModemArgInfo::STRING;
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std::vector<std::string> consOpts;
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consOpts.push_back("2");
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consOpts.push_back("4");
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consOpts.push_back("8");
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consOpts.push_back("16");
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consOpts.push_back("32");
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consOpts.push_back("64");
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consOpts.push_back("128");
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consOpts.push_back("256");
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consArg.options = consOpts;
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args.push_back(consArg);
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return args;
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}
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void ModemDPSK::writeSetting(std::string setting, std::string value) {
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if (setting == "cons") {
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int newCons = std::stoi(value);
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updateDemodulatorCons(newCons);
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}
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}
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std::string ModemDPSK::readSetting(std::string setting) {
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if (setting == "cons") {
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return std::to_string(cons);
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}
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return "";
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}
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void ModemDPSK::updateDemodulatorCons(int cons) {
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this->cons = cons;
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switch (cons) {
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case 2:
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demodDPSK = demodDPSK2;
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break;
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case 4:
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demodDPSK = demodDPSK4;
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break;
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case 8:
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demodDPSK = demodDPSK8;
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break;
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case 16:
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demodDPSK = demodDPSK16;
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break;
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case 32:
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demodDPSK = demodDPSK32;
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break;
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case 64:
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demodDPSK = demodDPSK64;
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break;
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case 128:
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demodDPSK = demodDPSK128;
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break;
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case 256:
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demodDPSK = demodDPSK256;
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break;
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}
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}
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void ModemDPSK::demodulate(ModemKit *kit, ModemIQData *input, AudioThreadInput *audioOut) {
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ModemKitDigital *dkit = (ModemKitDigital *)kit;
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digitalStart(dkit, demodDPSK, input);
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for (size_t i = 0, bufSize = input->data.size(); i < bufSize; i++) {
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modem_demodulate(demodDPSK, input->data[i], &demodOutputDataDigital[i]);
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}
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updateDemodulatorLock(demodDPSK, 0.005f);
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digitalFinish(dkit, demodDPSK);
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}
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