Enhancements to TCP src plugin. Effectively show channel power on TCP src GUI

plugins/channel/tcpsrc/tcpsrc.cpp

@@ -49,6 +49,7 @@ TCPSrc::TCPSrc(MessageQueue* uiMessageQueue, TCPSrcGUI* tcpSrcGUI, SampleSink* s
 	m_this = 0;
 	m_scale = 0;
 	m_boost = 0;
+	m_magsq = 0;
 	m_sampleBufferSSB.resize(tcpFftLen);
 	TCPFilter = new fftfilt(0.3 / 48.0, 16.0 / 48.0, tcpFftLen);
 	// if (!TCPFilter) segfault;
@@ -82,32 +83,43 @@ void TCPSrc::feed(const SampleVector::const_iterator& begin, const SampleVector:
 	m_settingsMutex.lock();
 
 	// Rtl-Sdr uses full 16-bit scale; FCDPP does not
-	int rescale = 30000 * (1 << m_boost);
+	//int rescale = 32768 * (1 << m_boost);
+	int rescale = (1 << m_boost);
 
 	for(SampleVector::const_iterator it = begin; it < end; ++it) {
-		Complex c(it->real() / 32768.0f, it->imag() / 32768.0f);
+		//Complex c(it->real() / 32768.0f, it->imag() / 32768.0f);
+		Complex c(it->real(), it->imag());
 		c *= m_nco.nextIQ();
 
-		if(m_interpolator.interpolate(&m_sampleDistanceRemain, c, &ci)) {
+		if(m_interpolator.interpolate(&m_sampleDistanceRemain, c, &ci))
+		{
+			m_magsq = ((ci.real()*ci.real() +  ci.imag()*ci.imag())*rescale*rescale) / (1<<30);
 			m_sampleBuffer.push_back(Sample(ci.real() * rescale, ci.imag() * rescale));
 			m_sampleDistanceRemain += m_inputSampleRate / m_outputSampleRate;
 		}
 	}
 
-	if((m_spectrum != NULL) && (m_spectrumEnabled))
+	if((m_spectrum != 0) && (m_spectrumEnabled))
+	{
 		m_spectrum->feed(m_sampleBuffer.begin(), m_sampleBuffer.end(), positiveOnly);
+	}
 
 	for(int i = 0; i < m_s16leSockets.count(); i++)
+	{
 		m_s16leSockets[i].socket->write((const char*)&m_sampleBuffer[0], m_sampleBuffer.size() * 4);
+	}
 
 	if((m_sampleFormat == FormatSSB) && (m_ssbSockets.count() > 0)) {
 		for(SampleVector::const_iterator it = m_sampleBuffer.begin(); it != m_sampleBuffer.end(); ++it) {
-			Complex cj(it->real() / 30000.0, it->imag() / 30000.0);
+			//Complex cj(it->real() / 30000.0, it->imag() / 30000.0);
+			Complex cj(it->real(), it->imag());
 			int n_out = TCPFilter->runSSB(cj, &sideband, true);
 			if (n_out) {
 				for (int i = 0; i < n_out; i+=2) {
-					l = (sideband[i].real() + sideband[i].imag()) * 0.7 * 32000.0;
-					r = (sideband[i+1].real() + sideband[i+1].imag()) * 0.7 * 32000.0;
+					//l = (sideband[i].real() + sideband[i].imag()) * 0.7 * 32000.0;
+					//r = (sideband[i+1].real() + sideband[i+1].imag()) * 0.7 * 32000.0;
+					l = (sideband[i].real() + sideband[i].imag()) * 0.7;
+					r = (sideband[i+1].real() + sideband[i+1].imag()) * 0.7;
 					m_sampleBufferSSB.push_back(Sample(l, r));
 				}
 				for(int i = 0; i < m_ssbSockets.count(); i++)
@@ -119,7 +131,7 @@ void TCPSrc::feed(const SampleVector::const_iterator& begin, const SampleVector:
 
 	if((m_sampleFormat == FormatNFM) && (m_ssbSockets.count() > 0)) {
 		for(SampleVector::const_iterator it = m_sampleBuffer.begin(); it != m_sampleBuffer.end(); ++it) {
-			Complex cj(it->real() / 30000.0, it->imag() / 30000.0);
+			Complex cj(it->real() / 32768.0f, it->imag() / 32768.0f);
 			// An FFT filter here is overkill, but was already set up for SSB
 			int n_out = TCPFilter->runFilt(cj, &sideband);
 			if (n_out) {

plugins/channel/tcpsrc/tcpsrc.h

@@ -31,6 +31,7 @@ public:
 
 	void configure(MessageQueue* messageQueue, SampleFormat sampleFormat, Real outputSampleRate, Real rfBandwidth, int tcpPort, int boost);
 	void setSpectrum(MessageQueue* messageQueue, bool enabled);
+	Real getMagSq() const { return m_magsq; }
 
 	virtual void feed(const SampleVector::const_iterator& begin, const SampleVector::const_iterator& end, bool positiveOnly);
 	virtual void start();
@@ -128,6 +129,7 @@ protected:
 	Real m_rfBandwidth;
 	int m_tcpPort;
 	int m_boost;
+	Real m_magsq;
 
 	Real m_scale;
 	Complex m_last, m_this;

plugins/channel/tcpsrc/tcpsrcgui.cpp

@@ -6,8 +6,10 @@
 #include "dsp/spectrumvis.h"
 #include "dsp/dspengine.h"
 #include "util/simpleserializer.h"
+#include "util/db.h"
 #include "gui/basicchannelsettingswidget.h"
 #include "ui_tcpsrcgui.h"
+#include "mainwindow.h"
 
 TCPSrcGUI* TCPSrcGUI::create(PluginAPI* pluginAPI)
 {
@@ -169,12 +171,20 @@ void TCPSrcGUI::channelMarkerChanged()
 	applySettings();
 }
 
+void TCPSrcGUI::tick()
+{
+	Real powDb = CalcDb::dbPower(m_tcpSrc->getMagSq());
+	m_channelPowerDbAvg.feed(powDb);
+	ui->channelPower->setText(QString::number(m_channelPowerDbAvg.average(), 'f', 1));
+}
+
 TCPSrcGUI::TCPSrcGUI(PluginAPI* pluginAPI, QWidget* parent) :
 	RollupWidget(parent),
 	ui(new Ui::TCPSrcGUI),
 	m_pluginAPI(pluginAPI),
-	m_tcpSrc(NULL),
+	m_tcpSrc(0),
 	m_channelMarker(this),
+	m_channelPowerDbAvg(40,0),
 	m_basicSettingsShown(false),
 	m_doApplySettings(true)
 {
@@ -199,6 +209,9 @@ TCPSrcGUI::TCPSrcGUI(PluginAPI* pluginAPI, QWidget* parent) :
 	ui->glSpectrum->setDisplayMaxHold(true);
 	m_spectrumVis->configure(m_spectrumVis->getInputMessageQueue(), 64, 10, FFTWindow::BlackmanHarris);
 
+	ui->glSpectrum->connectTimer(m_pluginAPI->getMainWindow()->getMasterTimer());
+	connect(&m_pluginAPI->getMainWindow()->getMasterTimer(), SIGNAL(timeout()), this, SLOT(tick()));
+
 	//m_channelMarker = new ChannelMarker(this);
 	m_channelMarker.setBandwidth(16000);
 	m_channelMarker.setCenterFrequency(0);

plugins/channel/tcpsrc/tcpsrcgui.h

@@ -5,6 +5,7 @@
 #include "gui/rollupwidget.h"
 #include "plugin/plugingui.h"
 #include "dsp/channelmarker.h"
+#include "dsp/movingaverage.h"
 #include "tcpsrc.h"
 
 class PluginAPI;
@@ -47,11 +48,14 @@ private slots:
 	void onWidgetRolled(QWidget* widget, bool rollDown);
 	void onMenuDoubleClicked();
 	void on_boost_valueChanged(int value);
+	void tick();
+
 private:
 	Ui::TCPSrcGUI* ui;
 	PluginAPI* m_pluginAPI;
 	TCPSrc* m_tcpSrc;
 	ChannelMarker m_channelMarker;
+	MovingAverage<Real> m_channelPowerDbAvg;
 
 	// settings
 	TCPSrc::SampleFormat m_sampleFormat;
@@ -67,7 +71,7 @@ private:
 	Channelizer* m_channelizer;
 	SpectrumVis* m_spectrumVis;
 
-	explicit TCPSrcGUI(PluginAPI* pluginAPI, QWidget* parent = NULL);
+	explicit TCPSrcGUI(PluginAPI* pluginAPI, QWidget* parent = 0);
 	virtual ~TCPSrcGUI();
 
     void blockApplySettings(bool block);

plugins/channel/tcpsrc/tcpsrcplugin.cpp

@@ -6,11 +6,11 @@
 
 const PluginDescriptor TCPSrcPlugin::m_pluginDescriptor = {
 	QString("TCP Channel Source"),
-	QString("ssb"),
-	QString("(c) maintech GmbH (written by Christian Daniel)"),
-	QString("http://www.maintech.de"),
+	QString("---"),
+	QString("(c) Edouard Griffiths, F4EXB"),
+	QString("https://github.com/f4exb/sdrangel"),
 	true,
-	QString("github.com/hexameron/rtl-sdrangelove")
+	QString("https://github.com/f4exb/sdrangel")
 };
 
 TCPSrcPlugin::TCPSrcPlugin(QObject* parent) :
@@ -30,14 +30,14 @@ void TCPSrcPlugin::initPlugin(PluginAPI* pluginAPI)
 	// register TCP Channel Source
 	QAction* action = new QAction(tr("&TCP Source"), this);
 	connect(action, SIGNAL(triggered()), this, SLOT(createInstanceTCPSrc()));
-	m_pluginAPI->registerChannel("de.maintech.sdrangelove.channel.tcpsrc", this, action);
+	m_pluginAPI->registerChannel("sdrangel.channel.tcpsrc", this, action);
 }
 
 PluginGUI* TCPSrcPlugin::createChannel(const QString& channelName)
 {
-	if(channelName == "de.maintech.sdrangelove.channel.tcpsrc") {
+	if(channelName == "sdrangel.channel.tcpsrc") {
 		TCPSrcGUI* gui = TCPSrcGUI::create(m_pluginAPI);
-		m_pluginAPI->registerChannelInstance("de.maintech.sdrangelove.channel.tcpsrc", gui);
+		m_pluginAPI->registerChannelInstance("sdrangel.channel.tcpsrc", gui);
 		m_pluginAPI->addChannelRollup(gui);
 		return gui;
 	} else {
@@ -48,6 +48,6 @@ PluginGUI* TCPSrcPlugin::createChannel(const QString& channelName)
 void TCPSrcPlugin::createInstanceTCPSrc()
 {
 	TCPSrcGUI* gui = TCPSrcGUI::create(m_pluginAPI);
-	m_pluginAPI->registerChannelInstance("de.maintech.sdrangelove.channel.tcpsrc", gui);
+	m_pluginAPI->registerChannelInstance("sdrangel.channel.tcpsrc", gui);
 	m_pluginAPI->addChannelRollup(gui);
 }

plugins/channel/tcpsrc/tcpsrcplugin.h

@@ -7,7 +7,7 @@
 class TCPSrcPlugin : public QObject, PluginInterface {
 	Q_OBJECT
 	Q_INTERFACES(PluginInterface)
-	Q_PLUGIN_METADATA(IID "de.maintech.sdrangelove.demod.tcpsrc")
+	Q_PLUGIN_METADATA(IID "sdrangel.demod.tcpsrc")
 
 public:
 	explicit TCPSrcPlugin(QObject* parent = NULL);