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NFM demod: GUI and demod separation phase1

This commit is contained in:
f4exb 2017-10-08 17:37:12 +02:00
parent 094f10fe5a
commit 7d484181cc
2 changed files with 222 additions and 0 deletions

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

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///////////////////////////////////////////////////////////////////////////////////
// Copyright (C) 2017 Edouard Griffiths, F4EXB //
// //
// This program is free software; you can redistribute it and/or modify //
// it under the terms of the GNU General Public License as published by //
// the Free Software Foundation as version 3 of the License, or //
// //
// This program is distributed in the hope that it will be useful, //
// but WITHOUT ANY WARRANTY; without even the implied warranty of //
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the //
// GNU General Public License V3 for more details. //
// //
// You should have received a copy of the GNU General Public License //
// along with this program. If not, see <http://www.gnu.org/licenses/>. //
///////////////////////////////////////////////////////////////////////////////////
#ifndef PLUGINS_CHANNELRX_DEMODNFM_NFMDEMODSETTINGS_H_
#define PLUGINS_CHANNELRX_DEMODNFM_NFMDEMODSETTINGS_H_
#include <stdint.h>
class Serializable;
struct NFMDemodSettings
{
static const int m_nbRfBW;
static const int m_rfBW[];
static const int m_fmDev[];
int m_inputSampleRate;
int64_t m_inputFrequencyOffset;
Real m_rfBandwidth;
Real m_afBandwidth;
int m_fmDeviation;
int m_squelchGate;
bool m_deltaSquelch;
Real m_squelch; //!< centi-Bels
Real m_volume;
bool m_ctcssOn;
bool m_audioMute;
int m_ctcssIndex;
uint32_t m_audioSampleRate;
bool m_copyAudioToUDP;
QString m_udpAddress;
uint16_t m_udpPort;
quint32 m_rgbColor;
Serializable *m_channelMarker;
NFMDemodSettings();
void resetToDefaults();
void setChannelMarker(Serializable *channelMarker) { m_channelMarker = channelMarker; }
QByteArray serialize() const;
bool deserialize(const QByteArray& data);
static int getRFBW(int index);
static int getFMDev(int index);
static int getRFBWIndex(int rfbw);
};
#endif /* PLUGINS_CHANNELRX_DEMODNFM_NFMDEMODSETTINGS_H_ */