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NFM demod: GUI and demod separation phase1
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plugins/channelrx/demodnfm/nfmdemodsettings.cpp
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159
plugins/channelrx/demodnfm/nfmdemodsettings.cpp
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///////////////////////////////////////////////////////////////////////////////////
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// Copyright (C) 2017 Edouard Griffiths, F4EXB //
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// //
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// This program is free software; you can redistribute it and/or modify //
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// it under the terms of the GNU General Public License as published by //
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// the Free Software Foundation as version 3 of the License, or //
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// //
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// This program is distributed in the hope that it will be useful, //
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// but WITHOUT ANY WARRANTY; without even the implied warranty of //
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the //
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// GNU General Public License V3 for more details. //
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// //
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// You should have received a copy of the GNU General Public License //
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// along with this program. If not, see <http://www.gnu.org/licenses/>. //
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///////////////////////////////////////////////////////////////////////////////////
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#include <QColor>
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#include "dsp/dspengine.h"
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#include "util/simpleserializer.h"
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#include "settings/serializable.h"
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#include "nfmdemodsettings.h"
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const int NFMDemodSettings::m_rfBW[] = {
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5000, 6250, 8330, 10000, 12500, 15000, 20000, 25000, 40000
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};
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const int NFMDemodSettings::m_fmDev[] = { // corresponding FM deviations
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1000, 1500, 2000, 2000, 2000, 2500, 3000, 3500, 5000
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};
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const int NFMDemodSettings::m_nbRfBW = 9;
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NFMDemodSettings::NFMDemodSettings() :
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m_channelMarker(0)
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{
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resetToDefaults();
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}
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void NFMDemodSettings::resetToDefaults()
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{
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m_inputSampleRate = 96000;
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m_inputFrequencyOffset = 0;
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m_rfBandwidth = 12500;
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m_afBandwidth = 3000;
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m_fmDeviation = 2000;
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m_squelchGate = 5; // 10s of ms at 48000 Hz sample rate. Corresponds to 2400 for AGC attack
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m_deltaSquelch = false;
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m_squelch = -300.0;
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m_volume = 1.0;
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m_ctcssOn = false;
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m_audioMute = false;
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m_ctcssIndex = 0;
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m_audioSampleRate = DSPEngine::instance()->getAudioSampleRate();
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m_rgbColor = QColor(255, 0, 0).rgb();
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}
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QByteArray NFMDemodSettings::serialize() const
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{
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SimpleSerializer s(1);
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s.writeS32(1, m_inputFrequencyOffset);
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s.writeS32(2, getRFBWIndex(m_rfBandwidth));
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s.writeS32(3, m_afBandwidth/1000.0);
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s.writeS32(4, m_volume*10.0);
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s.writeS32(5, (int) m_squelch);
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s.writeU32(7, m_rgbColor);
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s.writeS32(8, m_ctcssIndex);
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s.writeBool(9, m_ctcssOn);
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s.writeBool(10, m_audioMute);
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s.writeS32(11, m_squelchGate);
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s.writeBool(12, m_deltaSquelch);
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if (m_channelMarker) {
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s.writeBlob(13, m_channelMarker->serialize());
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}
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return s.final();
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}
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bool NFMDemodSettings::deserialize(const QByteArray& data)
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{
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SimpleDeserializer d(data);
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if (!d.isValid())
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{
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resetToDefaults();
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return false;
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}
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if (d.getVersion() == 1)
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{
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QByteArray bytetmp;
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qint32 tmp;
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if (m_channelMarker)
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{
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d.readBlob(13, &bytetmp);
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m_channelMarker->deserialize(bytetmp);
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}
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d.readS32(1, &tmp, 0);
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m_inputFrequencyOffset = tmp;
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d.readS32(2, &tmp, 4);
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m_rfBandwidth = getRFBW(tmp);
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m_fmDeviation = getFMDev(tmp);
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d.readS32(3, &tmp, 3);
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m_afBandwidth = tmp * 1000.0;
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d.readS32(4, &tmp, 20);
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m_volume = tmp / 10.0;
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d.readS32(5, &tmp, -300);
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m_squelch = tmp * 1.0;
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d.readU32(7, &m_rgbColor, QColor(255, 0, 0).rgb());
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d.readS32(8, &m_ctcssIndex, 0);
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d.readBool(9, &m_ctcssOn, false);
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d.readBool(10, &m_audioMute, false);
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d.readS32(11, &m_squelchGate, 5);
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d.readBool(12, &m_deltaSquelch, false);
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return true;
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}
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else
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{
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resetToDefaults();
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return false;
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}
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}
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int NFMDemodSettings::getRFBW(int index)
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{
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if (index < 0) {
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return m_rfBW[0];
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} else if (index < m_nbRfBW) {
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return m_rfBW[index];
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} else {
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return m_rfBW[m_nbRfBW-1];
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}
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}
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int NFMDemodSettings::getFMDev(int index)
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{
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if (index < 0) {
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return m_fmDev[0];
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} else if (index < m_nbRfBW) {
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return m_fmDev[index];
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} else {
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return m_fmDev[m_nbRfBW-1];
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}
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}
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int NFMDemodSettings::getRFBWIndex(int rfbw)
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{
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for (int i = 0; i < m_nbRfBW; i++)
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{
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if (rfbw <= m_rfBW[i])
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{
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return i;
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}
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}
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return m_nbRfBW-1;
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}
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63
plugins/channelrx/demodnfm/nfmdemodsettings.h
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63
plugins/channelrx/demodnfm/nfmdemodsettings.h
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@ -0,0 +1,63 @@
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///////////////////////////////////////////////////////////////////////////////////
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// Copyright (C) 2017 Edouard Griffiths, F4EXB //
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// //
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// This program is free software; you can redistribute it and/or modify //
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// it under the terms of the GNU General Public License as published by //
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// the Free Software Foundation as version 3 of the License, or //
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// //
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// This program is distributed in the hope that it will be useful, //
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// but WITHOUT ANY WARRANTY; without even the implied warranty of //
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the //
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// GNU General Public License V3 for more details. //
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// //
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// You should have received a copy of the GNU General Public License //
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// along with this program. If not, see <http://www.gnu.org/licenses/>. //
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///////////////////////////////////////////////////////////////////////////////////
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#ifndef PLUGINS_CHANNELRX_DEMODNFM_NFMDEMODSETTINGS_H_
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#define PLUGINS_CHANNELRX_DEMODNFM_NFMDEMODSETTINGS_H_
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#include <stdint.h>
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class Serializable;
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struct NFMDemodSettings
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{
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static const int m_nbRfBW;
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static const int m_rfBW[];
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static const int m_fmDev[];
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int m_inputSampleRate;
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int64_t m_inputFrequencyOffset;
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Real m_rfBandwidth;
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Real m_afBandwidth;
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int m_fmDeviation;
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int m_squelchGate;
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bool m_deltaSquelch;
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Real m_squelch; //!< centi-Bels
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Real m_volume;
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bool m_ctcssOn;
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bool m_audioMute;
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int m_ctcssIndex;
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uint32_t m_audioSampleRate;
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bool m_copyAudioToUDP;
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QString m_udpAddress;
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uint16_t m_udpPort;
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quint32 m_rgbColor;
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Serializable *m_channelMarker;
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NFMDemodSettings();
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void resetToDefaults();
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void setChannelMarker(Serializable *channelMarker) { m_channelMarker = channelMarker; }
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QByteArray serialize() const;
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bool deserialize(const QByteArray& data);
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static int getRFBW(int index);
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static int getFMDev(int index);
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static int getRFBWIndex(int rfbw);
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};
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#endif /* PLUGINS_CHANNELRX_DEMODNFM_NFMDEMODSETTINGS_H_ */
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