1
0
mirror of https://github.com/f4exb/sdrangel.git synced 2024-12-25 04:03:30 -05:00
sdrangel/plugins/channelrx/demodnfm/nfmdemodsettings.cpp

166 lines
4.8 KiB
C++

///////////////////////////////////////////////////////////////////////////////////
// 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 single side FM deviations at 0.4 * BW
2000, 2500, 3330, 4000, 5000, 6000, 8000, 10000, 16000
};
const int NFMDemodSettings::m_nbRfBW = 9;
NFMDemodSettings::NFMDemodSettings() :
m_channelMarker(0)
{
resetToDefaults();
}
void NFMDemodSettings::resetToDefaults()
{
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_rgbColor = QColor(255, 0, 0).rgb();
m_title = "NFM Demodulator";
m_audioDeviceName = AudioDeviceManager::m_defaultDeviceName;
}
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, static_cast<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());
}
s.writeString(14, m_title);
s.writeString(15, m_audioDeviceName);
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);
d.readString(14, &m_title, "NFM Demodulator");
d.readString(15, &m_audioDeviceName, AudioDeviceManager::m_defaultDeviceName);
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;
}