82 lines
2.0 KiB
C++
82 lines
2.0 KiB
C++
// Copyright (c) Charles J. Cliffe
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// SPDX-License-Identifier: GPL-2.0+
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#include "ModemSQAM.h"
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ModemSQAM::ModemSQAM() : ModemDigital() {
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demodSQAM32 = modem_create(LIQUID_MODEM_SQAM32);
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demodSQAM128 = modem_create(LIQUID_MODEM_SQAM128);
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demodSQAM = demodSQAM32;
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cons = 32;
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}
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ModemBase *ModemSQAM::factory() {
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return new ModemSQAM;
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}
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ModemSQAM::~ModemSQAM() {
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modem_destroy(demodSQAM32);
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modem_destroy(demodSQAM128);
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}
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std::string ModemSQAM::getName() {
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return "SQAM";
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}
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ModemArgInfoList ModemSQAM::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("32");
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consOpts.push_back("128");
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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 ModemSQAM::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 ModemSQAM::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 ModemSQAM::updateDemodulatorCons(int cons) {
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this->cons = cons;
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switch (cons) {
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case 32:
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demodSQAM = demodSQAM32;
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break;
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case 128:
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demodSQAM = demodSQAM128;
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break;
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}
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}
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void ModemSQAM::demodulate(ModemKit *kit, ModemIQData *input, AudioThreadInput *audioOut) {
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ModemKitDigital *dkit = (ModemKitDigital *)kit;
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digitalStart(dkit, demodSQAM, input);
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for (size_t i = 0, bufSize = input->data.size(); i < bufSize; i++) {
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modem_demodulate(demodSQAM, input->data[i], &demodOutputDataDigital[i]);
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}
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updateDemodulatorLock(demodSQAM, 0.005f);
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digitalFinish(dkit, demodSQAM);
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}
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