mirror of
https://github.com/f4exb/sdrangel.git
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264 lines
7.6 KiB
C++
264 lines
7.6 KiB
C++
///////////////////////////////////////////////////////////////////////////////////
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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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// (at your option) any later version. //
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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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// Standard channel spacings (kHz) using Carson rule
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// beta based ............ 11F3 16F3 (36F9)
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// 5 6.25 7.5 8.33 12.5 25 40 Spacing
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// 0.43 0.43 0.43 0.43 0.83 1.67 1.0 Beta
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const int NFMDemodSettings::m_channelSpacings[] = {
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5000, 6250, 7500, 8333, 12500, 25000, 40000
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};
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const int NFMDemodSettings::m_rfBW[] = { // RF bandwidth (Hz)
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4800, 6000, 7200, 8000, 11000, 16000, 36000
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};
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const int NFMDemodSettings::m_afBW[] = { // audio bandwidth (Hz)
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1700, 2100, 2500, 2800, 3000, 3000, 9000
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};
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const int NFMDemodSettings::m_fmDev[] = { // peak deviation (Hz) - full is double
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731, 903, 1075, 1204, 2500, 5000, 9000
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};
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const int NFMDemodSettings::m_nbChannelSpacings = 7;
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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_inputFrequencyOffset = 0;
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m_rfBandwidth = 12500;
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m_afBandwidth = 3000;
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m_fmDeviation = 5000;
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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 = -30.0;
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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_rgbColor = QColor(255, 0, 0).rgb();
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m_title = "NFM Demodulator";
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m_audioDeviceName = AudioDeviceManager::m_defaultDeviceName;
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m_highPass = true;
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m_streamIndex = 0;
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m_useReverseAPI = false;
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m_reverseAPIAddress = "127.0.0.1";
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m_reverseAPIPort = 8888;
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m_reverseAPIDeviceIndex = 0;
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m_reverseAPIChannelIndex = 0;
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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.writeReal(2, m_rfBandwidth);
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s.writeReal(3, m_afBandwidth);
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s.writeS32(4, m_volume*10.0);
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s.writeS32(5, static_cast<int>(m_squelch));
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s.writeBool(6, m_highPass);
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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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s.writeString(14, m_title);
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s.writeString(15, m_audioDeviceName);
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s.writeBool(16, m_useReverseAPI);
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s.writeString(17, m_reverseAPIAddress);
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s.writeU32(18, m_reverseAPIPort);
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s.writeU32(19, m_reverseAPIDeviceIndex);
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s.writeU32(20, m_reverseAPIChannelIndex);
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s.writeS32(21, m_streamIndex);
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s.writeReal(22, m_fmDeviation);
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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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uint32_t utmp;
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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.readReal(2, &m_rfBandwidth, 12500.0);
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d.readReal(3, &m_afBandwidth, 3000.0);
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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, -30);
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m_squelch = (tmp < -100 ? tmp/10 : tmp) * 1.0;
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d.readBool(6, &m_highPass, true);
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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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d.readString(14, &m_title, "NFM Demodulator");
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d.readString(15, &m_audioDeviceName, AudioDeviceManager::m_defaultDeviceName);
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d.readBool(16, &m_useReverseAPI, false);
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d.readString(17, &m_reverseAPIAddress, "127.0.0.1");
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d.readU32(18, &utmp, 0);
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if ((utmp > 1023) && (utmp < 65535)) {
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m_reverseAPIPort = utmp;
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} else {
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m_reverseAPIPort = 8888;
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}
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d.readU32(19, &utmp, 0);
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m_reverseAPIDeviceIndex = utmp > 99 ? 99 : utmp;
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d.readU32(20, &utmp, 0);
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m_reverseAPIChannelIndex = utmp > 99 ? 99 : utmp;
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d.readS32(21, &m_streamIndex, 0);
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d.readReal(22, &m_fmDeviation, 5000.0);
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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::getChannelSpacing(int index)
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{
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if (index < 0) {
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return m_channelSpacings[0];
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} else if (index < m_nbChannelSpacings) {
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return m_channelSpacings[index];
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} else {
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return m_channelSpacings[m_nbChannelSpacings-1];
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}
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}
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int NFMDemodSettings::getChannelSpacingIndex(int channelSpacing)
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{
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for (int i = 0; i < m_nbChannelSpacings; i++)
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{
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if (channelSpacing <= m_channelSpacings[i]) {
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return i;
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}
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}
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return m_nbChannelSpacings-1;
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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_nbChannelSpacings) {
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return m_rfBW[index];
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} else {
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return m_rfBW[m_nbChannelSpacings-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_nbChannelSpacings; i++)
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{
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if (rfbw <= m_rfBW[i]) {
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return i;
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}
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}
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return m_nbChannelSpacings-1;
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}
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int NFMDemodSettings::getAFBW(int index)
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{
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if (index < 0) {
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return m_afBW[0];
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} else if (index < m_nbChannelSpacings) {
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return m_afBW[index];
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} else {
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return m_afBW[m_nbChannelSpacings-1];
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}
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}
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int NFMDemodSettings::getAFBWIndex(int afbw)
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{
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for (int i = 0; i < m_nbChannelSpacings; i++)
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{
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if (afbw <= m_afBW[i]) {
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return i;
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}
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}
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return m_nbChannelSpacings-1;
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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_nbChannelSpacings) {
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return m_fmDev[index];
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} else {
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return m_fmDev[m_nbChannelSpacings-1];
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}
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}
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int NFMDemodSettings::getFMDevIndex(int fmDev)
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{
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for (int i = 0; i < m_nbChannelSpacings; i++)
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{
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if (fmDev <= m_rfBW[i]) {
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return i;
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}
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}
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return m_nbChannelSpacings-1;
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}
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