40 lines
797 B
C++
40 lines
797 B
C++
// Copyright (c) Charles J. Cliffe
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// SPDX-License-Identifier: GPL-2.0+
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#include "ModemFM.h"
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ModemFM::ModemFM() : ModemAnalog() {
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demodFM = freqdem_create(0.5);
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}
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ModemFM::~ModemFM() {
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freqdem_destroy(demodFM);
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}
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ModemBase *ModemFM::factory() {
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return new ModemFM;
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}
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std::string ModemFM::getName() {
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return "FM";
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}
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int ModemFM::getDefaultSampleRate() {
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return 200000;
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}
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void ModemFM::demodulate(ModemKit *kit, ModemIQData *input, AudioThreadInput *audioOut) {
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ModemKitAnalog *fmkit = (ModemKitAnalog *)kit;
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initOutputBuffers(fmkit, input);
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if (!bufSize) {
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input->decRefCount();
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return;
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}
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freqdem_demodulate_block(demodFM, &input->data[0], bufSize, &demodOutputData[0]);
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buildAudioOutput(fmkit, audioOut, false);
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}
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