BFM demod: added pilot view option and pilot power display

plugins/channel/bfm/bfmdemod.cpp

@@ -69,9 +69,15 @@ BFMDemod::~BFMDemod()
 	DSPEngine::instance()->removeAudioSink(&m_audioFifo);
 }
 
-void BFMDemod::configure(MessageQueue* messageQueue, Real rfBandwidth, Real afBandwidth, Real volume, Real squelch, bool audioStereo)
+void BFMDemod::configure(MessageQueue* messageQueue,
+		Real rfBandwidth,
+		Real afBandwidth,
+		Real volume,
+		Real squelch,
+		bool audioStereo,
+		bool showPilot)
 {
-	Message* cmd = MsgConfigureBFMDemod::create(rfBandwidth, afBandwidth, volume, squelch, audioStereo);
+	Message* cmd = MsgConfigureBFMDemod::create(rfBandwidth, afBandwidth, volume, squelch, audioStereo, showPilot);
 	messageQueue->push(cmd);
 }
 
@@ -123,17 +129,23 @@ void BFMDemod::feed(const SampleVector::const_iterator& begin, const SampleVecto
 			m_m2Sample = m_m1Sample;
 			m_m1Sample = rf[i];
 
-			m_sampleBuffer.push_back(Sample(demod * (1<<15), 0.0));
+			if (!m_running.m_showPilot)
+			{
+				m_sampleBuffer.push_back(Sample(demod * (1<<15), 0.0));
+			}
+
 			Real sampleStereo;
 
 			// Process stereo if stereo mode is selected
 
 			if (m_running.m_audioStereo)
 			{
-				//Real pilotSample;
-				//m_pilotPLL.process(demod, pilotSample);
 				m_pilotPLL.process(demod, m_pilotPLLSamples);
-				//m_sampleBuffer.push_back(Sample(pilotSample * (1<<15), 0.0)); // debug pilot
+
+				if (m_running.m_showPilot)
+				{
+					m_sampleBuffer.push_back(Sample(m_pilotPLLSamples[1] * (1<<15), 0.0)); // debug 38 kHz pilot
+				}
 
 				Complex s(demod*2.0*m_pilotPLLSamples[1], 0);
 
@@ -243,6 +255,7 @@ bool BFMDemod::handleMessage(const Message& cmd)
 		m_config.m_volume = cfg.getVolume();
 		m_config.m_squelch = cfg.getSquelch();
 		m_config.m_audioStereo = cfg.getAudioStereo();
+		m_config.m_showPilot = cfg.getShowPilot();
 
 		apply();
 
@@ -250,7 +263,8 @@ bool BFMDemod::handleMessage(const Message& cmd)
 				<< " m_afBandwidth: " << m_config.m_afBandwidth
 				<< " m_volume: " << m_config.m_volume
 				<< " m_squelch: " << m_config.m_squelch
-				<< " m_audioStereo: " << m_config.m_audioStereo;
+				<< " m_audioStereo: " << m_config.m_audioStereo
+				<< " m_showPilot: " << m_config.m_showPilot;
 
 		return true;
 	}
@@ -341,5 +355,6 @@ void BFMDemod::apply()
 	m_running.m_volume = m_config.m_volume;
 	m_running.m_audioSampleRate = m_config.m_audioSampleRate;
 	m_running.m_audioStereo = m_config.m_audioStereo;
+	m_running.m_showPilot = m_config.m_showPilot;
 
 }

plugins/channel/bfm/bfmdemod.h

@@ -38,7 +38,13 @@ public:
 	BFMDemod(SampleSink* sampleSink);
 	virtual ~BFMDemod();
 
-	void configure(MessageQueue* messageQueue, Real rfBandwidth, Real afBandwidth, Real volume, Real squelch, bool audioStereo);
+	void configure(MessageQueue* messageQueue,
+			Real rfBandwidth,
+			Real afBandwidth,
+			Real volume,
+			Real squelch,
+			bool audioStereo,
+			bool showPilot);
 
 	int getSampleRate() const { return m_config.m_inputSampleRate; }
 	virtual void feed(const SampleVector::const_iterator& begin, const SampleVector::const_iterator& end, bool po);
@@ -60,10 +66,16 @@ private:
 		Real getVolume() const { return m_volume; }
 		Real getSquelch() const { return m_squelch; }
 		bool getAudioStereo() const { return m_audioStereo; }
+		bool getShowPilot() const { return m_showPilot; }
 
-		static MsgConfigureBFMDemod* create(Real rfBandwidth, Real afBandwidth, Real volume, Real squelch, bool audioStereo)
+		static MsgConfigureBFMDemod* create(Real rfBandwidth,
+				Real afBandwidth,
+				Real volume,
+				Real squelch,
+				bool audioStereo,
+				bool showPilot)
 		{
-			return new MsgConfigureBFMDemod(rfBandwidth, afBandwidth, volume, squelch, audioStereo);
+			return new MsgConfigureBFMDemod(rfBandwidth, afBandwidth, volume, squelch, audioStereo, showPilot);
 		}
 
 	private:
@@ -72,14 +84,21 @@ private:
 		Real m_volume;
 		Real m_squelch;
 		bool m_audioStereo;
+		bool m_showPilot;
 
-		MsgConfigureBFMDemod(Real rfBandwidth, Real afBandwidth, Real volume, Real squelch, bool audioStereo) :
+		MsgConfigureBFMDemod(Real rfBandwidth,
+				Real afBandwidth,
+				Real volume,
+				Real squelch,
+				bool audioStereo,
+				bool showPilot) :
 			Message(),
 			m_rfBandwidth(rfBandwidth),
 			m_afBandwidth(afBandwidth),
 			m_volume(volume),
 			m_squelch(squelch),
-			m_audioStereo(audioStereo)
+			m_audioStereo(audioStereo),
+			m_showPilot(showPilot)
 		{ }
 	};
 
@@ -103,6 +122,7 @@ private:
 		Real m_volume;
 		quint32 m_audioSampleRate;
 		bool m_audioStereo;
+		bool m_showPilot;
 
 		Config() :
 			m_inputSampleRate(-1),
@@ -112,7 +132,8 @@ private:
 			m_squelch(0),
 			m_volume(0),
 			m_audioSampleRate(0),
-			m_audioStereo(false)
+			m_audioStereo(false),
+			m_showPilot(false)
 		{ }
 	};
 

plugins/channel/bfm/bfmdemodgui.cpp

@@ -232,6 +232,11 @@ void BFMDemodGUI::on_audioStereo_toggled(bool stereo)
 	applySettings();
 }
 
+void BFMDemodGUI::on_showPilot_clicked()
+{
+	applySettings();
+}
+
 void BFMDemodGUI::onWidgetRolled(QWidget* widget, bool rollDown)
 {
 }
@@ -325,7 +330,8 @@ void BFMDemodGUI::applySettings()
 			ui->afBW->value() * 1000.0,
 			ui->volume->value() / 10.0,
 			ui->squelch->value(),
-			ui->audioStereo->isChecked());
+			ui->audioStereo->isChecked(),
+			ui->showPilot->isChecked());
 	}
 }
 
@@ -349,6 +355,11 @@ void BFMDemodGUI::tick()
 	m_channelPowerDbAvg.feed(powDb);
 	ui->channelPower->setText(QString::number(m_channelPowerDbAvg.average(), 'f', 1));
 
+	Real pilotPowDb =  CalcDb::dbPower(m_bfmDemod->getPilotLevel());
+	QString pilotPowDbStr;
+	pilotPowDbStr.sprintf("%+02.1f", pilotPowDb);
+	ui->pilotPower->setText(pilotPowDbStr);
+
 	if (m_bfmDemod->getPilotLock())
 	{
 		if (ui->audioStereo->isChecked())

plugins/channel/bfm/bfmdemodgui.h

@@ -62,6 +62,7 @@ private slots:
 	void on_volume_valueChanged(int value);
 	void on_squelch_valueChanged(int value);
 	void on_audioStereo_toggled(bool stereo);
+	void on_showPilot_clicked();
 	void onWidgetRolled(QWidget* widget, bool rollDown);
 	void onMenuDoubleClicked();
 	void tick();

plugins/channel/bfm/bfmdemodgui.ui

@@ -6,7 +6,7 @@
    <rect>
     <x>0</x>
     <y>0</y>
-    <width>252</width>
+    <width>308</width>
     <height>333</height>
    </rect>
   </property>
@@ -21,7 +21,7 @@
     <rect>
      <x>10</x>
      <y>20</y>
-     <width>235</width>
+     <width>281</width>
      <height>121</height>
     </rect>
    </property>
@@ -160,6 +160,49 @@
           </property>
          </widget>
         </item>
+        <item>
+         <widget class="ButtonSwitch" name="showPilot">
+          <property name="toolTip">
+           <string>Toggle demod/pilot spectrum display</string>
+          </property>
+          <property name="text">
+           <string/>
+          </property>
+          <property name="icon">
+           <iconset resource="../../../sdrbase/resources/res.qrc">
+            <normaloff>:/carrier.png</normaloff>:/carrier.png</iconset>
+          </property>
+          <property name="checkable">
+           <bool>true</bool>
+          </property>
+          <property name="autoRaise">
+           <bool>true</bool>
+          </property>
+         </widget>
+        </item>
+        <item>
+         <widget class="QLabel" name="pilotPower">
+          <property name="minimumSize">
+           <size>
+            <width>30</width>
+            <height>0</height>
+           </size>
+          </property>
+          <property name="toolTip">
+           <string>Pilot power</string>
+          </property>
+          <property name="text">
+           <string>0.0</string>
+          </property>
+         </widget>
+        </item>
+        <item>
+         <widget class="QLabel" name="pilotPowerUnits">
+          <property name="text">
+           <string>dB</string>
+          </property>
+         </widget>
+        </item>
        </layout>
       </item>
      </layout>
@@ -343,8 +386,8 @@
     <rect>
      <x>10</x>
      <y>160</y>
-     <width>231</width>
+     <width>281</width>
-     <height>156</height>
+     <height>151</height>
     </rect>
    </property>
    <property name="windowTitle">
@@ -376,6 +419,11 @@
   </widget>
  </widget>
  <customwidgets>
+  <customwidget>
+   <class>ButtonSwitch</class>
+   <extends>QToolButton</extends>
+   <header>gui/buttonswitch.h</header>
+  </customwidget>
   <customwidget>
    <class>RollupWidget</class>
    <extends>QWidget</extends>

sdrbase/resources/res.qrc

@@ -45,5 +45,6 @@
         <file>usb.png</file>
         <file>flip_lr.png</file>
         <file>flip_rl.png</file>
+        <file>carrier.png</file>
     </qresource>
 </RCC>