113 lines
2.9 KiB
C++
113 lines
2.9 KiB
C++
// Copyright (c) Charles J. Cliffe
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// SPDX-License-Identifier: GPL-2.0+
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#include "ModemAPSK.h"
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ModemAPSK::ModemAPSK() : ModemDigital() {
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demodAPSK4 = modem_create(LIQUID_MODEM_APSK4);
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demodAPSK8 = modem_create(LIQUID_MODEM_APSK8);
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demodAPSK16 = modem_create(LIQUID_MODEM_APSK16);
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demodAPSK32 = modem_create(LIQUID_MODEM_APSK32);
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demodAPSK64 = modem_create(LIQUID_MODEM_APSK64);
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demodAPSK128 = modem_create(LIQUID_MODEM_APSK128);
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demodAPSK256 = modem_create(LIQUID_MODEM_APSK256);
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demodAPSK = demodAPSK4;
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cons = 4;
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}
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ModemBase *ModemAPSK::factory() {
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return new ModemAPSK;
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}
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ModemAPSK::~ModemAPSK() {
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modem_destroy(demodAPSK4);
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modem_destroy(demodAPSK8);
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modem_destroy(demodAPSK16);
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modem_destroy(demodAPSK32);
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modem_destroy(demodAPSK64);
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modem_destroy(demodAPSK128);
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modem_destroy(demodAPSK256);
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}
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std::string ModemAPSK::getName() {
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return "APSK";
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}
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ModemArgInfoList ModemAPSK::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("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 ModemAPSK::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 ModemAPSK::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 ModemAPSK::updateDemodulatorCons(int cons) {
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this->cons = cons;
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switch (cons) {
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case 4:
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demodAPSK = demodAPSK4;
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break;
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case 8:
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demodAPSK = demodAPSK8;
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break;
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case 16:
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demodAPSK = demodAPSK16;
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break;
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case 32:
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demodAPSK = demodAPSK32;
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break;
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case 64:
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demodAPSK = demodAPSK64;
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break;
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case 128:
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demodAPSK = demodAPSK128;
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break;
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case 256:
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demodAPSK = demodAPSK256;
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break;
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}
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}
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void ModemAPSK::demodulate(ModemKit *kit, ModemIQData *input, AudioThreadInput *audioOut) {
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ModemKitDigital *dkit = (ModemKitDigital *)kit;
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digitalStart(dkit, demodAPSK, input);
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for (size_t i = 0, bufSize = input->data.size(); i < bufSize; i++) {
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modem_demodulate(demodAPSK, input->data[i], &demodOutputDataDigital[i]);
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}
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updateDemodulatorLock(demodAPSK, 0.005f);
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digitalFinish(dkit, demodAPSK);
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}
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