NFM demod: GUI and demod separation phase1 (1)

plugins/channelrx/demodnfm/nfmdemod.cpp

@@ -25,6 +25,8 @@
 #include "audio/audiooutput.h"
 #include "dsp/pidcontroller.h"
 #include "dsp/dspengine.h"
+#include "dsp/threadedbasebandsamplesink.h"
+#include <device/devicesourceapi.h>
 
 #include "nfmdemodgui.h"
 #include "nfmdemod.h"
@@ -35,7 +37,8 @@ MESSAGE_CLASS_DEFINITION(NFMDemod::MsgConfigureChannelizer, Message)
 static const double afSqTones[2] = {1000.0, 6000.0}; // {1200.0, 8000.0};
 const int NFMDemod::m_udpBlockSize = 512;
 
-NFMDemod::NFMDemod() :
+NFMDemod::NFMDemod(DeviceSourceAPI *devieAPI) :
+    m_deviceAPI(devieAPI),
 	m_ctcssIndex(0),
 	m_sampleCount(0),
 	m_squelchCount(0),
@@ -55,6 +58,10 @@ NFMDemod::NFMDemod() :
 {
 	setObjectName("NFMDemod");
 
+    m_channelizer = new DownChannelizer(this);
+    m_threadedChannelizer = new ThreadedBasebandSampleSink(m_channelizer, this);
+    m_deviceAPI->addThreadedSink(m_threadedChannelizer);
+
 	m_audioBuffer.resize(1<<14);
 	m_audioBufferFill = 0;
 
@@ -74,6 +81,9 @@ NFMDemod::~NFMDemod()
 {
 	DSPEngine::instance()->removeAudioSink(&m_audioFifo);
 	delete m_udpBufferAudio;
+    m_deviceAPI->removeThreadedSink(m_threadedChannelizer);
+    delete m_threadedChannelizer;
+    delete m_channelizer;
 }
 
 float arctan2(Real y, Real x)
@@ -338,6 +348,16 @@ bool NFMDemod::handleMessage(const Message& cmd)
 
 		return true;
 	}
+    else if (MsgConfigureChannelizer::match(cmd))
+    {
+        MsgConfigureChannelizer& cfg = (MsgConfigureChannelizer&) cmd;
+
+        m_channelizer->configure(m_channelizer->getInputMessageQueue(),
+            cfg.getSampleRate(),
+            cfg.getCenterFrequency());
+
+        return true;
+    }
 	else if (MsgConfigureNFMDemod::match(cmd))
 	{
 	    MsgConfigureNFMDemod& cfg = (MsgConfigureNFMDemod&) cmd;

plugins/channelrx/demodnfm/nfmdemod.h

@@ -35,6 +35,9 @@
 
 #include "nfmdemodsettings.h"
 
+class DeviceSourceAPI;
+class ThreadedBasebandSampleSink;
+class DownChannelizer;
 class NFMDemodGUI;
 
 class NFMDemod : public BasebandSampleSink {
@@ -85,7 +88,7 @@ public:
         { }
     };
 
-	NFMDemod();
+	NFMDemod(DeviceSourceAPI *deviceAPI);
 	~NFMDemod();
 
 	virtual void feed(const SampleVector::const_iterator& begin, const SampleVector::const_iterator& end, bool po);
@@ -126,6 +129,10 @@ private:
 		RSRunning
 	};
 
+    DeviceSourceAPI* m_deviceAPI;
+    ThreadedBasebandSampleSink* m_threadedChannelizer;
+    DownChannelizer* m_channelizer;
+
 	NFMDemodSettings m_settings;
 
 	NCO m_nco;

plugins/channelrx/demodnfm/nfmdemodgui.cpp

@@ -1,12 +1,10 @@
 #include "nfmdemodgui.h"
 
 #include <device/devicesourceapi.h>
-#include <dsp/downchannelizer.h>
 #include <QDockWidget>
 #include <QMainWindow>
 #include <QDebug>
 
-#include "dsp/threadedbasebandsamplesink.h"
 #include "ui_nfmdemodgui.h"
 #include "dsp/nullsink.h"
 #include "plugin/pluginapi.h"
@@ -304,7 +302,7 @@ NFMDemodGUI::NFMDemodGUI(PluginAPI* pluginAPI, DeviceSourceAPI *deviceAPI, QWidg
 	connect(this, SIGNAL(widgetRolled(QWidget*,bool)), this, SLOT(onWidgetRolled(QWidget*,bool)));
     connect(this, SIGNAL(customContextMenuRequested(const QPoint &)), this, SLOT(onMenuDialogCalled(const QPoint &)));
 
-	m_nfmDemod = new NFMDemod();
+	m_nfmDemod = new NFMDemod(m_deviceAPI);
 	m_nfmDemod->registerGUI(this);
 
 	connect(&m_pluginAPI->getMainWindow()->getMasterTimer(), SIGNAL(timeout()), this, SLOT(tick()));
@@ -336,10 +334,6 @@ NFMDemodGUI::NFMDemodGUI(PluginAPI* pluginAPI, DeviceSourceAPI *deviceAPI, QWidg
 	ui->deltaFrequency->setValueRange(false, 7, -9999999, 9999999);
     ui->channelPowerMeter->setColorTheme(LevelMeterSignalDB::ColorGreenAndBlue);
 
-	m_channelizer = new DownChannelizer(m_nfmDemod);
-	m_threadedChannelizer = new ThreadedBasebandSampleSink(m_channelizer, this);
-	m_deviceAPI->addThreadedSink(m_threadedChannelizer);
-
 	//m_channelMarker = new ChannelMarker(this);
 	m_channelMarker.setColor(Qt::red);
 	m_channelMarker.setBandwidth(12500);
@@ -366,9 +360,6 @@ NFMDemodGUI::NFMDemodGUI(PluginAPI* pluginAPI, DeviceSourceAPI *deviceAPI, QWidg
 NFMDemodGUI::~NFMDemodGUI()
 {
     m_deviceAPI->removeChannelInstance(this);
-    m_deviceAPI->removeThreadedSink(m_threadedChannelizer);
-	delete m_threadedChannelizer;
-	delete m_channelizer;
 	delete m_nfmDemod;
 	//delete m_channelMarker;
 	delete ui;
@@ -382,9 +373,9 @@ void NFMDemodGUI::applySettings(bool force)
 
 		setTitleColor(m_channelMarker.getColor());
 
-		m_channelizer->configure(m_channelizer->getInputMessageQueue(),
+        NFMDemod::MsgConfigureChannelizer* channelConfigMsg = NFMDemod::MsgConfigureChannelizer::create(
-			48000,
+                48000, m_channelMarker.getCenterFrequency());
-			m_channelMarker.getCenterFrequency());
+        m_nfmDemod->getInputMessageQueue()->push(channelConfigMsg);
 
         ui->deltaFrequency->setValue(m_channelMarker.getCenterFrequency());
 

plugins/channelrx/demodnfm/nfmdemodgui.h

@@ -13,8 +13,6 @@
 class PluginAPI;
 class DeviceSourceAPI;
 
-class ThreadedBasebandSampleSink;
-class DownChannelizer;
 class NFMDemod;
 
 namespace Ui {
@@ -68,8 +66,6 @@ private:
 	bool m_basicSettingsShown;
 	bool m_doApplySettings;
 
-	ThreadedBasebandSampleSink* m_threadedChannelizer;
-	DownChannelizer* m_channelizer;
 	NFMDemod* m_nfmDemod;
 	bool m_squelchOpen;
 	uint32_t m_tickCount;