BFM demod: implemented mono/stereo control from GUI

plugins/channel/bfm/bfmdemod.cpp

@@ -65,9 +65,9 @@ BFMDemod::~BFMDemod()
 	DSPEngine::instance()->removeAudioSink(&m_audioFifo);
 }
 
-void BFMDemod::configure(MessageQueue* messageQueue, Real rfBandwidth, Real afBandwidth, Real volume, Real squelch)
+void BFMDemod::configure(MessageQueue* messageQueue, Real rfBandwidth, Real afBandwidth, Real volume, Real squelch, bool audioStereo)
 {
-	Message* cmd = MsgConfigureBFMDemod::create(rfBandwidth, afBandwidth, volume, squelch);
+	Message* cmd = MsgConfigureBFMDemod::create(rfBandwidth, afBandwidth, volume, squelch, audioStereo);
 	messageQueue->push(cmd);
 }
 
@@ -119,29 +119,42 @@ void BFMDemod::feed(const SampleVector::const_iterator& begin, const SampleVecto
 			m_m2Sample = m_m1Sample;
 			m_m1Sample = rf[i];
 
-			// TODO: conditional to stereo mode selected
+			m_sampleBuffer.push_back(Sample(demod * (1<<15), 0.0));
+			quint16 sampleStereo;
+
+			// Process stereo if stereo mode is selected
+
+			if (m_running.m_audioStereo)
+			{
 				Real pilotSample;
 				m_pilotPLL.process(demod, pilotSample);
-			m_sampleBuffer.push_back(Sample(demod * (1<<15), 0.0));
 				//m_sampleBuffer.push_back(Sample(pilotSample * (1<<15), 0.0)); // debug pilot
 
 				Complex s(demod*2.0*pilotSample, 0);
-			quint16 sampleStereo;
 
 				if (m_interpolatorStereo.interpolate(&m_interpolatorStereoDistanceRemain, s, &cs))
 				{
 					sampleStereo = (qint16)(cs.real() * 3000 * m_running.m_volume);
 				}
-
+			}
 
 			Complex e(demod, 0);
 
-			if(m_interpolator.interpolate(&m_interpolatorDistanceRemain, e, &ci))
+			if (m_interpolator.interpolate(&m_interpolatorDistanceRemain, e, &ci))
 			{
 				quint16 sample = (qint16)(ci.real() * 3000 * m_running.m_volume);
-				//m_sampleBuffer.push_back(Sample(sample, sample));
+
+				if (m_running.m_audioStereo)
+				{
 					m_audioBuffer[m_audioBufferFill].l = sample + sampleStereo;
 					m_audioBuffer[m_audioBufferFill].r = sample - sampleStereo;
+				}
+				else
+				{
+					m_audioBuffer[m_audioBufferFill].l = sample;
+					m_audioBuffer[m_audioBufferFill].r = sample;
+				}
+
 				++m_audioBufferFill;
 
 				if(m_audioBufferFill >= m_audioBuffer.size())
@@ -220,13 +233,15 @@ bool BFMDemod::handleMessage(const Message& cmd)
 		m_config.m_afBandwidth = cfg.getAFBandwidth();
 		m_config.m_volume = cfg.getVolume();
 		m_config.m_squelch = cfg.getSquelch();
+		m_config.m_audioStereo = cfg.getAudioStereo();
 
 		apply();
 
 		qDebug() << "BFMDemod::handleMessage: MsgConfigureBFMDemod: 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_squelch: " << m_config.m_squelch
+				<< " m_audioStereo: " << m_config.m_audioStereo;
 
 		return true;
 	}
@@ -245,7 +260,8 @@ bool BFMDemod::handleMessage(const Message& cmd)
 
 void BFMDemod::apply()
 {
-	if (m_config.m_inputSampleRate != m_running.m_inputSampleRate)
+	if ((m_config.m_inputSampleRate != m_running.m_inputSampleRate)
+		|| (m_config.m_audioStereo && (m_config.m_audioStereo != m_running.m_audioStereo)))
 	{
 		m_pilotPLL.configure(19000.0/m_config.m_inputSampleRate, 50.0/m_config.m_inputSampleRate, 0.01);
 	}
@@ -309,5 +325,6 @@ void BFMDemod::apply()
 	m_running.m_squelch = m_config.m_squelch;
 	m_running.m_volume = m_config.m_volume;
 	m_running.m_audioSampleRate = m_config.m_audioSampleRate;
+	m_running.m_audioStereo = m_config.m_audioStereo;
 
 }

plugins/channel/bfm/bfmdemod.h

@@ -37,7 +37,7 @@ public:
 	BFMDemod(SampleSink* sampleSink);
 	virtual ~BFMDemod();
 
-	void configure(MessageQueue* messageQueue, Real rfBandwidth, Real afBandwidth, Real volume, Real squelch);
+	void configure(MessageQueue* messageQueue, Real rfBandwidth, Real afBandwidth, Real volume, Real squelch, bool audioStereo);
 
 	int getSampleRate() const { return m_config.m_inputSampleRate; }
 	virtual void feed(const SampleVector::const_iterator& begin, const SampleVector::const_iterator& end, bool po);
@@ -58,10 +58,11 @@ private:
 		Real getAFBandwidth() const { return m_afBandwidth; }
 		Real getVolume() const { return m_volume; }
 		Real getSquelch() const { return m_squelch; }
+		bool getAudioStereo() const { return m_audioStereo; }
 
-		static MsgConfigureBFMDemod* create(Real rfBandwidth, Real afBandwidth, Real volume, Real squelch)
+		static MsgConfigureBFMDemod* create(Real rfBandwidth, Real afBandwidth, Real volume, Real squelch, bool audioStereo)
 		{
-			return new MsgConfigureBFMDemod(rfBandwidth, afBandwidth, volume, squelch);
+			return new MsgConfigureBFMDemod(rfBandwidth, afBandwidth, volume, squelch, audioStereo);
 		}
 
 	private:
@@ -69,13 +70,15 @@ private:
 		Real m_afBandwidth;
 		Real m_volume;
 		Real m_squelch;
+		bool m_audioStereo;
 
-		MsgConfigureBFMDemod(Real rfBandwidth, Real afBandwidth, Real volume, Real squelch) :
+		MsgConfigureBFMDemod(Real rfBandwidth, Real afBandwidth, Real volume, Real squelch, bool audioStereo) :
 			Message(),
 			m_rfBandwidth(rfBandwidth),
 			m_afBandwidth(afBandwidth),
 			m_volume(volume),
-			m_squelch(squelch)
+			m_squelch(squelch),
+			m_audioStereo(audioStereo)
 		{ }
 	};
 
@@ -98,6 +101,7 @@ private:
 		Real m_squelch;
 		Real m_volume;
 		quint32 m_audioSampleRate;
+		bool m_audioStereo;
 
 		Config() :
 			m_inputSampleRate(-1),
@@ -106,7 +110,8 @@ private:
 			m_afBandwidth(-1),
 			m_squelch(0),
 			m_volume(0),
-			m_audioSampleRate(0)
+			m_audioSampleRate(0),
+			m_audioStereo(false)
 		{ }
 	};
 

plugins/channel/bfm/bfmdemodgui.cpp

@@ -222,6 +222,8 @@ void BFMDemodGUI::on_audioStereo_toggled(bool stereo)
 	{
 		ui->audioStereo->setStyleSheet("QToolButton { background:rgb(79,79,79); }");
 	}
+
+	applySettings();
 }
 
 void BFMDemodGUI::onWidgetRolled(QWidget* widget, bool rollDown)
@@ -318,7 +320,8 @@ void BFMDemodGUI::applySettings()
 			m_rfBW[ui->rfBW->value()],
 			ui->afBW->value() * 1000.0,
 			ui->volume->value() / 10.0,
-			ui->squelch->value());
+			ui->squelch->value(),
+			ui->audioStereo->isChecked());
 	}
 }