Mute option for NFM channel

Readme.md

@@ -183,6 +183,7 @@ For Debian Jessie or Stretch:
   - New USB source plugin to connect to an external demodulator (ex: GNU radio) via USB ports
   - Binaural option for SSB demod
   - DSB option for SSB
+  - Mute option for NFM channel
   
 <h2>Major redesign</h2>
 

plugins/channel/nfm/nfmdemod.cpp

@@ -35,6 +35,7 @@ NFMDemod::NFMDemod() :
 	m_sampleCount(0),
 	m_squelchCount(0),
 	m_agcAttack(2400),
+	m_audioMute(false),
 	m_afSquelch(2, afSqTones),
 	m_audioFifo(4, 48000),
 	m_settingsMutex(QMutex::Recursive)
@@ -48,6 +49,7 @@ NFMDemod::NFMDemod() :
 	m_config.m_squelch = -30.0;
 	m_config.m_volume = 2.0;
 	m_config.m_ctcssOn = false;
+	m_config.m_audioMute = false;
 	m_config.m_audioSampleRate = DSPEngine::instance()->getAudioSampleRate();
 
 	apply();
@@ -75,13 +77,15 @@ void NFMDemod::configure(MessageQueue* messageQueue,
 		Real afBandwidth,
 		Real volume,
 		Real squelch,
-		bool ctcssOn)
+		bool ctcssOn,
+		bool audioMute)
 {
 	Message* cmd = MsgConfigureNFMDemod::create(rfBandwidth,
 			afBandwidth,
 			volume,
 			squelch,
-			ctcssOn);
+			ctcssOn,
+			audioMute);
 	messageQueue->push(cmd);
 }
 
@@ -196,7 +200,7 @@ void NFMDemod::feed(const SampleVector::const_iterator& begin, const SampleVecto
 					squelchOpen = m_afSquelch.evaluate();
 				}*/
 
-				if (squelchOpen)
+				if ((squelchOpen) && !m_running.m_audioMute)
 				//if (m_AGC.getAverage() > m_squelchLevel)
 				{
 					if (m_running.m_ctcssOn)
@@ -324,14 +328,16 @@ bool NFMDemod::handleMessage(const Message& cmd)
 		m_config.m_volume = cfg.getVolume();
 		m_config.m_squelch = cfg.getSquelch();
 		m_config.m_ctcssOn = cfg.getCtcssOn();
+		m_config.m_audioMute = cfg.getAudioMute();
 
 		apply();
 
-		qDebug() << "  - MsgConfigureNFMDemod: m_rfBandwidth: " << m_config.m_rfBandwidth
+		qDebug() << "NFMDemod::handleMessage: MsgConfigureNFMDemod: m_rfBandwidth: " << m_config.m_rfBandwidth
 				<< " m_afBandwidth: " << m_config.m_afBandwidth
 				<< " m_volume: " << m_config.m_volume
 				<< " m_squelch: " << m_config.m_squelch
-				<< " m_ctcssOn: " << m_config.m_ctcssOn;
+				<< " m_ctcssOn: " << m_config.m_ctcssOn
+				<< " m_audioMute: " << m_config.m_audioMute;
 
 		return true;
 	}
@@ -384,4 +390,5 @@ void NFMDemod::apply()
 	m_running.m_volume = m_config.m_volume;
 	m_running.m_audioSampleRate = m_config.m_audioSampleRate;
 	m_running.m_ctcssOn = m_config.m_ctcssOn;
+	m_running.m_audioMute = m_config.m_audioMute;
 }

plugins/channel/nfm/nfmdemod.h

@@ -44,7 +44,8 @@ public:
 			Real afBandwidth,
 			Real volume,
 			Real squelch,
-			bool ctcssOn);
+			bool ctcssOn,
+			bool audioMute);
 
 	virtual void feed(const SampleVector::const_iterator& begin, const SampleVector::const_iterator& end, bool po);
 	virtual void start();
@@ -76,14 +77,16 @@ private:
 		Real getVolume() const { return m_volume; }
 		Real getSquelch() const { return m_squelch; }
 		bool getCtcssOn() const { return m_ctcssOn; }
+		bool getAudioMute() const { return m_audioMute; }
 
 		static MsgConfigureNFMDemod* create(Real rfBandwidth,
 				Real afBandwidth,
 				Real volume,
 				Real squelch,
-				bool ctcssOn)
+				bool ctcssOn,
+				bool audioMute)
 		{
-			return new MsgConfigureNFMDemod(rfBandwidth, afBandwidth, volume, squelch, ctcssOn);
+			return new MsgConfigureNFMDemod(rfBandwidth, afBandwidth, volume, squelch, ctcssOn, audioMute);
 		}
 
 	private:
@@ -92,18 +95,21 @@ private:
 		Real m_volume;
 		Real m_squelch;
 		bool m_ctcssOn;
+		bool m_audioMute;
 
 		MsgConfigureNFMDemod(Real rfBandwidth,
 				Real afBandwidth,
 				Real volume,
 				Real squelch,
-				bool ctcssOn) :
+				bool ctcssOn,
+				bool audioMute) :
 			Message(),
 			m_rfBandwidth(rfBandwidth),
 			m_afBandwidth(afBandwidth),
 			m_volume(volume),
 			m_squelch(squelch),
-			m_ctcssOn(ctcssOn)
+			m_ctcssOn(ctcssOn),
+			m_audioMute(audioMute)
 		{ }
 	};
 
@@ -126,6 +132,7 @@ private:
 		Real m_squelch;
 		Real m_volume;
 		bool m_ctcssOn;
+		bool m_audioMute;
 		int  m_ctcssIndex;
 		quint32 m_audioSampleRate;
 
@@ -137,6 +144,7 @@ private:
 			m_squelch(0),
 			m_volume(0),
 			m_ctcssOn(false),
+			m_audioMute(false),
 			m_ctcssIndex(0),
 			m_audioSampleRate(0)
 		{ }
@@ -157,6 +165,7 @@ private:
 	int m_sampleCount;
 	int m_squelchCount;
 	int m_agcAttack;
+	bool m_audioMute;
 
 	double m_squelchLevel;
 

plugins/channel/nfm/nfmdemodgui.cpp

@@ -61,6 +61,7 @@ void NFMDemodGUI::resetToDefaults()
 	ui->squelch->setValue(-40);
 	ui->deltaFrequency->setValue(0);
 	ui->ctcssOn->setChecked(false);
+	ui->audioMute->setChecked(false);
 
 	blockApplySettings(false);
 	applySettings();
@@ -77,6 +78,7 @@ QByteArray NFMDemodGUI::serialize() const
 	s.writeU32(7, m_channelMarker.getColor().rgb());
 	s.writeS32(8, ui->ctcss->currentIndex());
 	s.writeBool(9, ui->ctcssOn->isChecked());
+	s.writeBool(10, ui->audioMute->isChecked());
 	return s.final();
 }
 
@@ -118,9 +120,10 @@ bool NFMDemodGUI::deserialize(const QByteArray& data)
 
 		d.readS32(8, &tmp, 0);
 		ui->ctcss->setCurrentIndex(tmp);
-
 		d.readBool(9, &boolTmp, false);
 		ui->ctcssOn->setChecked(boolTmp);
+		d.readBool(10, &boolTmp, false);
+		ui->audioMute->setChecked(boolTmp);
 
 		blockApplySettings(false);
 		m_channelMarker.blockSignals(false);
@@ -199,6 +202,12 @@ void NFMDemodGUI::on_ctcssOn_toggled(bool checked)
 	applySettings();
 }
 
+void NFMDemodGUI::on_audioMute_toggled(bool checked)
+{
+	m_audioMute = checked;
+	applySettings();
+}
+
 void NFMDemodGUI::on_ctcss_currentIndexChanged(int index)
 {
 	if (m_nfmDemod != 0)
@@ -304,7 +313,8 @@ void NFMDemodGUI::applySettings()
 			ui->afBW->value() * 1000.0,
 			ui->volume->value() / 10.0,
 			ui->squelch->value(),
-			ui->ctcssOn->isChecked());
+			ui->ctcssOn->isChecked(),
+			ui->audioMute->isChecked());
 	}
 }
 

plugins/channel/nfm/nfmdemodgui.h

@@ -46,6 +46,7 @@ private slots:
 	void on_squelch_valueChanged(int value);
 	void on_ctcss_currentIndexChanged(int index);
 	void on_ctcssOn_toggled(bool checked);
+	void on_audioMute_toggled(bool checked);
 	void onWidgetRolled(QWidget* widget, bool rollDown);
 	void onMenuDoubleClicked();
 	void tick();
@@ -61,6 +62,7 @@ private:
 	Channelizer* m_channelizer;
 	NFMDemod* m_nfmDemod;
 	bool m_ctcssOn;
+	bool m_audioMute;
 	MovingAverage<Real> m_channelPowerDbAvg;
 
 	static const int m_rfBW[];

plugins/channel/nfm/nfmdemodgui.ui

@@ -7,7 +7,7 @@
     <x>0</x>
     <y>0</y>
     <width>281</width>
-    <height>433</height>
+    <height>162</height>
    </rect>
   </property>
   <property name="windowTitle">
@@ -16,10 +16,10 @@
   <widget class="QWidget" name="settingsContainer" native="true">
    <property name="geometry">
     <rect>
-     <x>6</x>
-     <y>35</y>
-     <width>235</width>
-     <height>395</height>
+     <x>0</x>
+     <y>0</y>
+     <width>271</width>
+     <height>131</height>
     </rect>
    </property>
    <property name="windowTitle">
@@ -383,6 +383,24 @@
         </property>
        </spacer>
       </item>
+      <item>
+       <widget class="QToolButton" name="audioMute">
+        <property name="toolTip">
+         <string>Mute/Unmute audio</string>
+        </property>
+        <property name="text">
+         <string>...</string>
+        </property>
+        <property name="icon">
+         <iconset resource="../../../sdrbase/resources/res.qrc">
+          <normaloff>:/sound_on.png</normaloff>
+          <normalon>:/sound_off.png</normalon>:/sound_on.png</iconset>
+        </property>
+        <property name="checkable">
+         <bool>true</bool>
+        </property>
+       </widget>
+      </item>
      </layout>
     </item>
    </layout>