Added: VST Plugin support. Add and configure plugins via Configuration Editor. The plugin's architecture has to match the OS architecture, so most people will need 64-bit plugins. The subdirectory plugins is offered to put plugins into, but they can be opened from any directory with sufficient permissions.

Fixed: When trying to add a high-pass filter in the Configuration Editor, it was instead configured to be a low-pass filter.

Benchmark/Benchmark.cpp

@@ -162,78 +162,79 @@ int main(int argc, char** argv)
 
 		PrecisionTimer timer;
 		timer.start();
-
-		FilterEngine engine;
-		wstring deviceName = StringHelper::toWString(devicenameArg.getValue(), CP_ACP);
-		wstring connectionName = StringHelper::toWString(connectionnameArg.getValue(), CP_ACP);
-		wstring deviceGuid = StringHelper::toWString(guidArg.getValue(), CP_ACP);
-		engine.setDeviceInfo(false, true, deviceName, connectionName, deviceGuid, deviceName + L" " + connectionName + L" " + deviceGuid);
-		engine.initialize((float)sampleRate, channelCount, channelCount, channelCount, channelMask, batchsize);
-
-		double initTime = timer.stop();
-		if (!verbose)
-			printf("\nLoading configuration took %g ms\n", initTime * 1000.0);
-
-		printf("\nProcessing %d frames from %d channel(s)\n", frameCount, channelCount);
-
-		timer.start();
-
-		for (unsigned i = 0; i < frameCount; i += batchsize)
 		{
-			engine.process(buf2 + i * channelCount, buf + i * channelCount, min(batchsize, frameCount - i));
+			FilterEngine engine;
+			wstring deviceName = StringHelper::toWString(devicenameArg.getValue(), CP_ACP);
+			wstring connectionName = StringHelper::toWString(connectionnameArg.getValue(), CP_ACP);
+			wstring deviceGuid = StringHelper::toWString(guidArg.getValue(), CP_ACP);
+			engine.setDeviceInfo(false, true, deviceName, connectionName, deviceGuid, deviceName + L" " + connectionName + L" " + deviceGuid);
+			engine.initialize((float)sampleRate, channelCount, channelCount, channelCount, channelMask, batchsize);
+
+			double initTime = timer.stop();
+			if(!verbose)
+				printf("\nLoading configuration took %g ms\n", initTime * 1000.0);
+
+			printf("\nProcessing %d frames from %d channel(s)\n", frameCount, channelCount);
+
+			timer.start();
+
+			for(unsigned i = 0; i < frameCount; i += batchsize)
+			{
+				engine.process(buf2 + i * channelCount, buf + i * channelCount, min(batchsize, frameCount - i));
+			}
+
+			double time = timer.stop();
+
+			printf("%d samples processed in %f seconds\n", frameCount * channelCount, time);
+			printf("This is equivalent to %.2f%% CPU load (one core) when processing in real time\n", 100.0f * time / length);
+
+			unsigned clipCount = 0;
+			float max = 0;
+			for(unsigned i = 0; i < frameCount * channelCount; i++)
+			{
+				float f = fabs(buf2[i]);
+				if(f > max)
+					max = f;
+				if(f > 1.0f)
+					clipCount++;
+			}
+
+			printf("Max output level: %f (%f dB)", max, log10(max) * 20.0f);
+			if(clipCount > 0)
+				printf(" (%d samples clipped!)", clipCount);
+			printf("\n");
+
+			string output = outputArg.getValue();
+			if(output == "")
+			{
+				char temp[255];
+				GetTempPathA(sizeof(temp) / sizeof(wchar_t), temp);
+
+				output = temp;
+				output += "testout.wav";
+			}
+
+			printf("\nWriting output to %s\n", output.c_str());
+
+			SF_INFO info = {frameCount, (int)sampleRate, (int)channelCount, SF_FORMAT_WAV | SF_FORMAT_PCM_16, 0};
+			SNDFILE* outFile = sf_open(output.c_str(), SFM_WRITE, &info);
+			if(outFile == NULL)
+			{
+				fprintf(stderr, "%s", sf_strerror(outFile));
+				return 1;
+			}
+
+			sf_count_t numWritten = 0;
+			while(numWritten < frameCount)
+				numWritten += sf_writef_float(outFile, buf2 + numWritten * channelCount, frameCount - numWritten);
+
+			sf_close(outFile);
+			outFile = NULL;
+
+			delete[]buf;
+			delete[]buf2;
 		}
 
-		double time = timer.stop();
-
-		printf("%d samples processed in %f seconds\n", frameCount * channelCount, time);
-		printf("This is equivalent to %.2f%% CPU load (one core) when processing in real time\n", 100.0f * time / length);
-
-		unsigned clipCount = 0;
-		float max = 0;
-		for (unsigned i = 0; i < frameCount * channelCount; i++)
-		{
-			float f = fabs(buf2[i]);
-			if (f > max)
-				max = f;
-			if (f > 1.0f)
-				clipCount++;
-		}
-
-		printf("Max output level: %f (%f dB)", max, log10(max) * 20.0f);
-		if (clipCount > 0)
-			printf(" (%d samples clipped!)", clipCount);
-		printf("\n");
-
-		string output = outputArg.getValue();
-		if (output == "")
-		{
-			char temp[255];
-			GetTempPathA(sizeof(temp) / sizeof(wchar_t), temp);
-
-			output = temp;
-			output += "testout.wav";
-		}
-
-		printf("\nWriting output to %s\n", output.c_str());
-
-		SF_INFO info = {frameCount, (int)sampleRate, (int)channelCount, SF_FORMAT_WAV | SF_FORMAT_PCM_16, 0};
-		SNDFILE* outFile = sf_open(output.c_str(), SFM_WRITE, &info);
-		if (outFile == NULL)
-		{
-			fprintf(stderr, "%s", sf_strerror(outFile));
-			return 1;
-		}
-
-		sf_count_t numWritten = 0;
-		while (numWritten < frameCount)
-			numWritten += sf_writef_float(outFile, buf2 + numWritten * channelCount, frameCount - numWritten);
-
-		sf_close(outFile);
-		outFile = NULL;
-
-		delete[]buf;
-		delete[]buf2;
-
 		if (!noPauseArg.getValue())
 			system("pause");
 

Benchmark/Benchmark.vcxproj

@@ -97,7 +97,7 @@
     <Link>
       <SubSystem>Console</SubSystem>
       <GenerateDebugInformation>true</GenerateDebugInformation>
-      <AdditionalDependencies>muparserxd.lib;version.lib;Shlwapi.lib;authz.lib;libsndfile-1.lib;libfftw3f-3.lib;%(AdditionalDependencies)</AdditionalDependencies>
+      <AdditionalDependencies>muparserxd.lib;version.lib;Shlwapi.lib;authz.lib;crypt32.lib;dbghelp.lib;libsndfile-1.lib;libfftw3f-3.lib;%(AdditionalDependencies)</AdditionalDependencies>
     </Link>
   </ItemDefinitionGroup>
   <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">
@@ -110,7 +110,7 @@
     <Link>
       <SubSystem>Console</SubSystem>
       <GenerateDebugInformation>true</GenerateDebugInformation>
-      <AdditionalDependencies>muparserxd.lib;version.lib;Shlwapi.lib;authz.lib;libsndfile-1.lib;libfftw3f-3.lib;%(AdditionalDependencies)</AdditionalDependencies>
+      <AdditionalDependencies>muparserxd.lib;version.lib;Shlwapi.lib;authz.lib;crypt32.lib;dbghelp.lib;libsndfile-1.lib;libfftw3f-3.lib;%(AdditionalDependencies)</AdditionalDependencies>
     </Link>
   </ItemDefinitionGroup>
   <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">
@@ -128,7 +128,7 @@
       <GenerateDebugInformation>true</GenerateDebugInformation>
       <EnableCOMDATFolding>true</EnableCOMDATFolding>
       <OptimizeReferences>true</OptimizeReferences>
-      <AdditionalDependencies>muparserx.lib;version.lib;Shlwapi.lib;authz.lib;libsndfile-1.lib;libfftw3f-3.lib;%(AdditionalDependencies)</AdditionalDependencies>
+      <AdditionalDependencies>muparserx.lib;version.lib;Shlwapi.lib;authz.lib;crypt32.lib;dbghelp.lib;libsndfile-1.lib;libfftw3f-3.lib;%(AdditionalDependencies)</AdditionalDependencies>
     </Link>
   </ItemDefinitionGroup>
   <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'">
@@ -146,7 +146,7 @@
       <GenerateDebugInformation>true</GenerateDebugInformation>
       <EnableCOMDATFolding>true</EnableCOMDATFolding>
       <OptimizeReferences>true</OptimizeReferences>
-      <AdditionalDependencies>muparserx.lib;version.lib;Shlwapi.lib;authz.lib;libsndfile-1.lib;libfftw3f-3.lib;%(AdditionalDependencies)</AdditionalDependencies>
+      <AdditionalDependencies>muparserx.lib;version.lib;Shlwapi.lib;authz.lib;crypt32.lib;dbghelp.lib;libsndfile-1.lib;libfftw3f-3.lib;%(AdditionalDependencies)</AdditionalDependencies>
     </Link>
   </ItemDefinitionGroup>
   <ItemGroup>
@@ -174,12 +174,17 @@
     <ClCompile Include="..\filters\PreampFilter.cpp" />
     <ClCompile Include="..\filters\PreampFilterFactory.cpp" />
     <ClCompile Include="..\filters\StageFilterFactory.cpp" />
+    <ClCompile Include="..\filters\VSTPluginFilter.cpp" />
+    <ClCompile Include="..\filters\VSTPluginFilterFactory.cpp" />
+    <ClCompile Include="..\helpers\AbstractLibrary.cpp" />
     <ClCompile Include="..\helpers\ChannelHelper.cpp" />
     <ClCompile Include="..\helpers\GainIterator.cpp" />
     <ClCompile Include="..\helpers\LogHelper.cpp" />
     <ClCompile Include="..\helpers\MemoryHelper.cpp" />
     <ClCompile Include="..\helpers\RegistryHelper.cpp" />
     <ClCompile Include="..\helpers\StringHelper.cpp" />
+    <ClCompile Include="..\helpers\VSTPluginInstance.cpp" />
+    <ClCompile Include="..\helpers\VSTPluginLibrary.cpp" />
     <ClCompile Include="..\IFilter.cpp" />
     <ClCompile Include="..\libHybridConv-0.1.1\libHybridConv_eapo.cpp" />
     <ClCompile Include="..\parser\RegexFunctions.cpp" />
@@ -218,6 +223,9 @@
     <ClInclude Include="..\filters\PreampFilter.h" />
     <ClInclude Include="..\filters\PreampFilterFactory.h" />
     <ClInclude Include="..\filters\StageFilterFactory.h" />
+    <ClInclude Include="..\filters\VSTPluginFilter.h" />
+    <ClInclude Include="..\filters\VSTPluginFilterFactory.h" />
+    <ClInclude Include="..\helpers\AbstractLibrary.h" />
     <ClInclude Include="..\helpers\ChannelHelper.h" />
     <ClInclude Include="..\helpers\GainIterator.h" />
     <ClInclude Include="..\helpers\LogHelper.h" />
@@ -227,6 +235,8 @@
     <ClInclude Include="..\helpers\ScopeGuard.h" />
     <ClInclude Include="..\helpers\StringHelper.h" />
     <ClInclude Include="..\helpers\UncaughtExceptions.h" />
+    <ClInclude Include="..\helpers\VSTPluginInstance.h" />
+    <ClInclude Include="..\helpers\VSTPluginLibrary.h" />
     <ClInclude Include="..\IFilter.h" />
     <ClInclude Include="..\IFilterFactory.h" />
     <ClInclude Include="..\libHybridConv-0.1.1\libHybridConv_eapo.h" />
@@ -235,6 +245,9 @@
     <ClInclude Include="..\parser\StringOperators.h" />
     <ClInclude Include="..\stdafx.h" />
   </ItemGroup>
+  <ItemGroup>
+    <None Include="..\EqualizerAPO.licenseheader" />
+  </ItemGroup>
   <Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />
   <ImportGroup Label="ExtensionTargets">
   </ImportGroup>

Benchmark/Benchmark.vcxproj.filters

@@ -102,6 +102,21 @@
       <Filter>filters</Filter>
     </ClCompile>
     <ClCompile Include="..\stdafx.cpp" />
+    <ClCompile Include="..\helpers\AbstractLibrary.cpp">
+      <Filter>helpers</Filter>
+    </ClCompile>
+    <ClCompile Include="..\filters\VSTPluginFilter.cpp">
+      <Filter>filters</Filter>
+    </ClCompile>
+    <ClCompile Include="..\filters\VSTPluginFilterFactory.cpp">
+      <Filter>filters</Filter>
+    </ClCompile>
+    <ClCompile Include="..\helpers\VSTPluginLibrary.cpp">
+      <Filter>helpers</Filter>
+    </ClCompile>
+    <ClCompile Include="..\helpers\VSTPluginInstance.cpp">
+      <Filter>helpers</Filter>
+    </ClCompile>
   </ItemGroup>
   <ItemGroup>
     <ClInclude Include="..\FilterEngine.h" />
@@ -214,6 +229,21 @@
     <ClInclude Include="..\helpers\UncaughtExceptions.h">
       <Filter>helpers</Filter>
     </ClInclude>
+    <ClInclude Include="..\helpers\AbstractLibrary.h">
+      <Filter>helpers</Filter>
+    </ClInclude>
+    <ClInclude Include="..\filters\VSTPluginFilter.h">
+      <Filter>filters</Filter>
+    </ClInclude>
+    <ClInclude Include="..\filters\VSTPluginFilterFactory.h">
+      <Filter>filters</Filter>
+    </ClInclude>
+    <ClInclude Include="..\helpers\VSTPluginLibrary.h">
+      <Filter>helpers</Filter>
+    </ClInclude>
+    <ClInclude Include="..\helpers\VSTPluginInstance.h">
+      <Filter>helpers</Filter>
+    </ClInclude>
   </ItemGroup>
   <ItemGroup>
     <Filter Include="parser">
@@ -229,4 +259,7 @@
       <UniqueIdentifier>{35b3b6f1-e4df-4214-bd4c-fa058942e547}</UniqueIdentifier>
     </Filter>
   </ItemGroup>
+  <ItemGroup>
+    <None Include="..\EqualizerAPO.licenseheader" />
+  </ItemGroup>
 </Project>

Configurator/Configurator.vcxproj

@@ -53,6 +53,7 @@
     <ResourceCompile Include="Configurator.rc" />
   </ItemGroup>
   <ItemGroup>
+    <None Include="..\EqualizerAPO.licenseheader" />
     <None Include="Configurator.ico" />
     <None Include="small.ico" />
   </ItemGroup>

Configurator/Configurator.vcxproj.filters

@@ -54,6 +54,7 @@
   <ItemGroup>
     <None Include="Configurator.ico" />
     <None Include="small.ico" />
+    <None Include="..\EqualizerAPO.licenseheader" />
   </ItemGroup>
   <ItemGroup>
     <Manifest Include="Configurator.exe.manifest" />

Editor/AnalysisThread.cpp

@@ -109,7 +109,7 @@ double AnalysisThread::getProcessingTime() const
 	return processingTime;
 }
 
-int AnalysisThread::getProcessedFrames() const
+unsigned AnalysisThread::getProcessedFrames() const
 {
 	return processedFrames;
 }
@@ -153,6 +153,7 @@ void AnalysisThread::run()
 		unsigned sampleRate = device->getSampleRate();
 
 		qint64 startTime = timer.nsecsElapsed();
+
 		FilterEngine engine;
 		engine.setDeviceInfo(device->isInput(), true, device->getDeviceName(), device->getConnectionName(), device->getDeviceGuid(), device->getDeviceString());
 		engine.initialize(sampleRate, channelCount, channelCount, channelCount, channelMask, frameCount, configPath.toStdWString());
@@ -193,8 +194,9 @@ void AnalysisThread::run()
 		int latency = 0;
 		int startFrame = -1;
 		double processingTime = 0.0;
-		int processedFrames = 0;
+		unsigned processedFrames = 0;
-		while (true)
+		// stop searching for startFrame after 10 seconds of audio data
+		while (processedFrames < 10 * sampleRate)
 		{
 			qint64 startTime = timer.nsecsElapsed();
 			engine.process(buf2, buf, frameCount);
@@ -240,20 +242,31 @@ void AnalysisThread::run()
 			if (startFrame == -1)
 				latency += frameCount;
 		}
-		latency += startFrame;
 
-		fftwf_execute(planForward);
+		double peakGain;
-
+		if (startFrame != -1)
-		double peakGain = -DBL_MAX;
-
-		for (int i = 0; i < frameCount / 2; i++)
 		{
-			float sqrGain = freqData[i][0] * freqData[i][0] + freqData[i][1] * freqData[i][1];
+			latency += startFrame;
-			if (sqrGain > peakGain)
+
-				peakGain = sqrGain;
+			fftwf_execute(planForward);
+
+			peakGain = -DBL_MAX;
+
+			for (int i = 0; i < frameCount / 2; i++)
+			{
+				float sqrGain = freqData[i][0] * freqData[i][0] + freqData[i][1] * freqData[i][1];
+				if (sqrGain > peakGain)
+					peakGain = sqrGain;
+			}
+			peakGain = sqrt(peakGain);
+			peakGain = log10(peakGain) * 20.0;
+		}
+		else
+		{
+			latency = 0;
+			peakGain = -numeric_limits<double>::infinity();
+			memset(freqData, 0, frameCount * sizeof(fftwf_complex));
 		}
-		peakGain = sqrt(peakGain);
-		peakGain = log10(peakGain) * 20.0;
 
 		mutex.lock();
 		if (this->freqDataLength != frameCount)

Editor/AnalysisThread.h

@@ -43,7 +43,7 @@ public:
 	int getLatency() const;
 	double getInitializationTime() const;
 	double getProcessingTime() const;
-	int getProcessedFrames() const;
+	unsigned getProcessedFrames() const;
 
 signals:
 	void analysisFinished();

Editor/Editor.pro

@@ -116,7 +116,15 @@ SOURCES += main.cpp\
 	helpers/DPIHelper.cpp \
 	CustomStyle.cpp \
 	../AbstractAPOInfo.cpp \
-	../VoicemeeterAPOInfo.cpp
+	../VoicemeeterAPOInfo.cpp \
+	../helpers/AbstractLibrary.cpp \
+	../helpers/VSTPluginLibrary.cpp \
+	guis/VSTPluginFilterGUI.cpp \
+	guis/VSTPluginFilterGUIFactory.cpp \
+	guis/VSTPluginFilterGUIDialog.cpp \
+	../filters/VSTPluginFilter.cpp \
+	../filters/VSTPluginFilterFactory.cpp \
+	../helpers/VSTPluginInstance.cpp
 
 HEADERS  += \
 	../helpers/LogHelper.h \
@@ -221,7 +229,15 @@ HEADERS  += \
 	helpers/DPIHelper.h \
 	CustomStyle.h \
 	../AbstractAPOInfo.h \
-	../VoicemeeterAPOInfo.h
+	../VoicemeeterAPOInfo.h \
+	../helpers/AbstractLibrary.h \
+	../helpers/VSTPluginLibrary.h \
+	guis/VSTPluginFilterGUI.h \
+	guis/VSTPluginFilterGUIFactory.h \
+	guis/VSTPluginFilterGUIDialog.h \
+	../filters/VSTPluginFilter.h \
+	../filters/VSTPluginFilterFactory.h \
+	../helpers/VSTPluginInstance.h
 
 FORMS    += \
 	guis/PreampFilterGUI.ui \
@@ -239,10 +255,12 @@ FORMS    += \
 	guis/GraphicEQFilterGUI.ui \
 	guis/ConvolutionFilterGUI.ui \
 	MainWindow.ui \
-	guis/StageFilterGUI.ui
+	guis/StageFilterGUI.ui \
+	guis/VSTPluginFilterGUI.ui \
+	guis/VSTPluginFilterGUIDialog.ui
 
 INCLUDEPATH += $$PWD/.. "C:/Program Files/libsndfile/include" "C:/Program Files/fftw3" "C:/Program Files/muparserx_v3_0_1/parser"
-LIBS += user32.lib advapi32.lib version.lib ole32.lib Shlwapi.lib authz.lib libsndfile-1.lib libfftw3f-3.lib
+LIBS += user32.lib advapi32.lib version.lib ole32.lib Shlwapi.lib authz.lib crypt32.lib dbghelp.lib libsndfile-1.lib libfftw3f-3.lib
 
 build_pass:CONFIG(debug, debug|release) {
 	LIBS += muparserxd.lib

Editor/FilterTable.cpp

@@ -48,6 +48,7 @@
 #include "guis/IncludeFilterGUIFactory.h"
 #include "guis/GraphicEQFilterGUIFactory.h"
 #include "guis/ConvolutionFilterGUIFactory.h"
+#include "guis/VSTPluginFilterGUIFactory.h"
 #include "Editor/helpers/DPIHelper.h"
 #include "helpers/StringHelper.h"
 #include "helpers/LogHelper.h"
@@ -79,10 +80,18 @@ FilterTable::FilterTable(MainWindow* mainWindow, QWidget* parent)
 	factories.append(new CopyFilterGUIFactory);
 	factories.append(new GraphicEQFilterGUIFactory);
 	factories.append(new ConvolutionFilterGUIFactory);
+	factories.append(new VSTPluginFilterGUIFactory);
 
 	QApplication::instance()->installEventFilter(this);
 }
 
+FilterTable::~FilterTable()
+{
+	for (IFilterGUIFactory* factory : factories)
+		delete factory;
+	factories.clear();
+}
+
 void FilterTable::initialize(QScrollArea* scrollArea, const QList<shared_ptr<AbstractAPOInfo> >& outputDevices, const QList<shared_ptr<AbstractAPOInfo> >& inputDevices)
 {
 	this->scrollArea = scrollArea;

Editor/FilterTable.h

@@ -56,6 +56,7 @@ public:
 	};
 
 	explicit FilterTable(MainWindow* mainWindow, QWidget* parent = 0);
+	~FilterTable();
 	void initialize(QScrollArea* scrollArea, const QList<std::shared_ptr<AbstractAPOInfo> >& outputDevices, const QList<std::shared_ptr<AbstractAPOInfo> >& inputDevices);
 	void updateDeviceAndChannelMask(std::shared_ptr<AbstractAPOInfo> selectedDevice, int selectedChannelMask);
 	void updateGuis();

Editor/MainWindow.cpp

@@ -427,6 +427,10 @@ void MainWindow::deviceSelected(int index)
 		else
 			channelConfigurationComboBox->addItem(tr("From device") + " (" + apoInfo->getChannelCount() + " channels)", 0);
 	}
+	else
+	{
+		channelConfigurationComboBox->addItem(tr("From device") + " (?)", 0);
+	}
 
 	for (const GUIChannelHelper::ChannelConfigurationInfo& info : infos)
 		channelConfigurationComboBox->addItem(info.name, info.channelMask);
@@ -469,6 +473,8 @@ void MainWindow::channelConfigurationSelected(int index)
 			ui->analysisChannelComboBox->addItem(QString::fromStdWString(channelName));
 		}
 	}
+
+	startAnalysis();
 }
 
 void MainWindow::linesChanged()
@@ -723,6 +729,9 @@ void MainWindow::on_mainToolBar_visibilityChanged(bool visible)
 void MainWindow::on_analysisDockWidget_visibilityChanged(bool visible)
 {
 	ui->actionAnalysisPanel->setChecked(visible);
+
+	if (visible)
+		startAnalysis();
 }
 
 void MainWindow::on_actionToolbar_triggered(bool checked)
@@ -836,7 +845,7 @@ void MainWindow::getDeviceAndChannelMask(shared_ptr<AbstractAPOInfo>* selectedDe
 		*selectedDevice = defaultOutputDevice;
 
 	*channelMask = channelConfigurationComboBox->currentData().toInt();
-	if (*channelMask == 0 && selectedDevice != NULL)
+	if (*channelMask == 0 && selectedDevice->get() != NULL)
 	{
 		*channelMask = (*selectedDevice)->getChannelMask();
 
@@ -894,6 +903,9 @@ bool MainWindow::askForClose(int tabIndex)
 
 void MainWindow::startAnalysis()
 {
+	if (!ui->analysisDockWidget->isVisible())
+		return;
+
 	shared_ptr<AbstractAPOInfo> selectedDevice;
 
 	int channelMask;

Editor/MainWindow.h

@@ -108,7 +108,7 @@ private:
 	QList<std::shared_ptr<AbstractAPOInfo> > inputDevices;
 	std::shared_ptr<AbstractAPOInfo> defaultOutputDevice;
 	AnalysisPlotScene* analysisPlotScene;
-	AnalysisThread* analysisThread;
+	AnalysisThread* analysisThread = NULL;
 	bool restart = false;
 	bool noSavePreferences = false;
 	bool noSaveFilePreferences = false;

Editor/guis/BiQuadFilterGUIFactory.cpp

@@ -32,7 +32,7 @@ QList<FilterTemplate> BiQuadFilterGUIFactory::createFilterTemplates()
 	QList<FilterTemplate> list;
 	list.append(FilterTemplate(tr("Peaking filter"), "Filter: ON PK Fc 100 Hz Gain 0 dB Q 10", path));
 	list.append(FilterTemplate(tr("Low-pass filter"), "Filter: ON LP Fc 100 Hz", path));
-	list.append(FilterTemplate(tr("High-pass filter"), "Filter: ON LP Fc 100 Hz", path));
+	list.append(FilterTemplate(tr("High-pass filter"), "Filter: ON HP Fc 100 Hz", path));
 	list.append(FilterTemplate(tr("Band-pass filter"), "Filter: ON BP Fc 100 Hz Q 10", path));
 	list.append(FilterTemplate(tr("Low-shelf filter"), "Filter: ON LS Fc 100 Hz Gain 0 dB", path));
 	list.append(FilterTemplate(tr("High-shelf filter"), "Filter: ON HS Fc 100 Hz Gain 0 dB", path));

Editor/guis/ConvolutionFilterGUI.ui

@@ -6,8 +6,8 @@
    <rect>
     <x>0</x>
     <y>0</y>
-    <width>652</width>
+    <width>665</width>
-    <height>65</height>
+    <height>79</height>
    </rect>
   </property>
   <property name="windowTitle">
@@ -58,7 +58,14 @@
     </widget>
    </item>
    <item row="0" column="1">
-    <widget class="ResizingLineEdit" name="pathLineEdit"/>
+    <widget class="ResizingLineEdit" name="pathLineEdit">
+     <property name="sizePolicy">
+      <sizepolicy hsizetype="Preferred" vsizetype="Fixed">
+       <horstretch>0</horstretch>
+       <verstretch>0</verstretch>
+      </sizepolicy>
+     </property>
+    </widget>
    </item>
    <item row="0" column="3">
     <widget class="QGroupBox" name="groupBox">

Editor/guis/CopyFilterGUIConnectionItem.cpp

@@ -175,8 +175,9 @@ void CopyFilterGUIConnectionItem::mouseDoubleClickEvent(QGraphicsSceneMouseEvent
 	if (isDecibel)
 		text += " dB";
 
-	ResizingLineEdit* lineEdit = new ResizingLineEdit("");
+	ResizingLineEdit* lineEdit = new ResizingLineEdit(text, true);
 	connect(lineEdit, SIGNAL(editingFinished()), this, SLOT(lineEditEditingFinished()));
+	connect(lineEdit, SIGNAL(editingCanceled()), this, SLOT(lineEditEditingCanceled()));
 	QGraphicsProxyWidget* proxyItem = scene()->addWidget(lineEdit);
 	QLineF l = line();
 	QPointF center = (l.p1() + l.p2()) / 2;
@@ -233,6 +234,14 @@ void CopyFilterGUIConnectionItem::lineEditEditingFinished()
 	emit((CopyFilterGUIScene*)scene())->updateModel();
 }
 
+void CopyFilterGUIConnectionItem::lineEditEditingCanceled()
+{
+	QLineEdit* lineEdit = qobject_cast<QLineEdit*>(QObject::sender());
+
+	lineEdit->setVisible(false);
+	lineEdit->deleteLater();
+}
+
 CopyFilterGUIChannelItem* CopyFilterGUIConnectionItem::getSource() const
 {
 	return source;

Editor/guis/CopyFilterGUIConnectionItem.h

@@ -55,6 +55,7 @@ protected:
 
 private slots:
 	void lineEditEditingFinished();
+	void lineEditEditingCanceled();
 
 private:
 	CopyFilterGUIChannelItem* source = NULL;

Editor/guis/CopyFilterGUIScene.cpp

@@ -162,8 +162,9 @@ std::vector<Assignment> CopyFilterGUIScene::buildAssignments()
 
 void CopyFilterGUIScene::addOutputChannel()
 {
-	ResizingLineEdit* lineEdit = new ResizingLineEdit("");
+	ResizingLineEdit* lineEdit = new ResizingLineEdit("", true);
 	connect(lineEdit, SIGNAL(editingFinished()), this, SLOT(lineEditEditingFinished()));
+	connect(lineEdit, SIGNAL(editingCanceled()), this, SLOT(lineEditEditingCanceled()));
 	QGraphicsProxyWidget* proxyItem = addWidget(lineEdit);
 	QPointF point = getNextChannelPoint(lastOutputItem, true);
 	QRectF rect;
@@ -183,13 +184,25 @@ void CopyFilterGUIScene::lineEditEditingFinished()
 		return;
 
 	QString text = lineEdit->text();
+	if (text != "")
+	{
+		CopyFilterGUIChannelItem* item = new CopyFilterGUIChannelItem(text, true);
+		item->setPos(getNextChannelPoint(lastOutputItem, true));
+		addItem(item);
+		lastOutputItem = item;
 
-	CopyFilterGUIChannelItem* item = new CopyFilterGUIChannelItem(text, true);
+		addProxyItem->setPos(getNextChannelPoint(lastOutputItem, true));
-	item->setPos(getNextChannelPoint(lastOutputItem, true));
+	}
-	addItem(item);
+	addProxyItem->setVisible(true);
-	lastOutputItem = item;
+
+	lineEdit->setVisible(false);
+	lineEdit->deleteLater();
+}
+
+void CopyFilterGUIScene::lineEditEditingCanceled()
+{
+	QLineEdit* lineEdit = qobject_cast<QLineEdit*>(QObject::sender());
 
-	addProxyItem->setPos(getNextChannelPoint(lastOutputItem, true));
 	addProxyItem->setVisible(true);
 
 	lineEdit->setVisible(false);

Editor/guis/CopyFilterGUIScene.h

@@ -43,6 +43,7 @@ protected:
 private slots:
 	void addOutputChannel();
 	void lineEditEditingFinished();
+	void lineEditEditingCanceled();
 
 private:
 	QGraphicsItem* lastOutputItem;

Editor/guis/IncludeFilterGUI.ui

@@ -51,7 +51,14 @@
     </widget>
    </item>
    <item row="0" column="1">
-    <widget class="ResizingLineEdit" name="pathLineEdit"/>
+    <widget class="ResizingLineEdit" name="pathLineEdit">
+     <property name="sizePolicy">
+      <sizepolicy hsizetype="Preferred" vsizetype="Fixed">
+       <horstretch>0</horstretch>
+       <verstretch>0</verstretch>
+      </sizepolicy>
+     </property>
+    </widget>
    </item>
    <item row="0" column="2">
     <widget class="QToolButton" name="selectFileToolButton">

Editor/guis/VSTPluginFilterGUI.cpp

@@ -0,0 +1,480 @@
+/*
+    This file is part of Equalizer APO, a system-wide equalizer.
+    Copyright (C) 2017  Jonas Thedering
+
+    This program is free software; you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation; either version 2 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License along
+    with this program; if not, write to the Free Software Foundation, Inc.,
+    51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+*/
+
+#include <QFileInfo>
+#include <QFileDialog>
+#include <QSettings>
+#include <QAbstractEventDispatcher>
+#include <QStringList>
+
+#define WIN32_LEAN_AND_MEAN
+#include <windows.h>
+#include "helpers/aeffectx.h"
+#include "helpers/StringHelper.h"
+#include "Editor/helpers/DPIHelper.h"
+#include "Editor/MainWindow.h"
+#include "VSTPluginFilterGUIDialog.h"
+#include "VSTPluginFilterGUI.h"
+#include "ui_VSTPluginFilterGUI.h"
+
+using namespace std;
+using namespace std::placeholders;
+
+VSTPluginFilterGUI::VSTPluginFilterGUI(std::shared_ptr<VSTPluginLibrary> library, const std::wstring& chunkData, const std::unordered_map<std::wstring, float>& paramMap)
+	: ui(new Ui::VSTPluginFilterGUI), library(library), chunkData(chunkData), paramMap(paramMap)
+{
+	ui->setupUi(this);
+	ui->frame->setVisible(false);
+	updatePermissionWarning();
+
+	QString absolutePath = QString::fromStdWString(library->getLibPath());
+	QDir pluginsDir(QString::fromStdWString(VSTPluginLibrary::getDefaultPluginPath()));
+	QString relativePath = QDir::toNativeSeparators(pluginsDir.relativeFilePath(absolutePath));
+	if (relativePath.startsWith(QDir::toNativeSeparators("../../")))
+		relativePath = absolutePath;
+	ui->pathLineEdit->setText(relativePath);
+
+	QMenu* menu = new QMenu(ui->optionsButton);
+	menu->addAction(ui->embedAction);
+	ui->optionsButton->setMenu(menu);
+}
+
+VSTPluginFilterGUI::~VSTPluginFilterGUI()
+{
+	if (effect != NULL)
+	{
+		if (ui->embedAction->isChecked())
+			on_embedAction_toggled(false);
+		delete effect;
+		effect = NULL;
+	}
+
+	delete ui;
+}
+
+void VSTPluginFilterGUI::store(QString& command, QString& parameters)
+{
+	command = "VSTPlugin";
+
+	QString absolutePath = QString::fromStdWString(library->getLibPath());
+	QDir pluginsDir(QString::fromStdWString(VSTPluginLibrary::getDefaultPluginPath()));
+	QString relativePath = QDir::toNativeSeparators(pluginsDir.relativeFilePath(absolutePath));
+	if (relativePath.startsWith(QDir::toNativeSeparators("../../")))
+		relativePath = absolutePath;
+
+	if (relativePath.contains(" "))
+		relativePath = "\"" + relativePath + "\"";
+	parameters = "Library " + relativePath;
+
+	if (chunkData != L"")
+	{
+		parameters += " ChunkData \"" + QString::fromStdWString(chunkData) + "\"";
+	}
+	else
+	{
+		for (auto it : paramMap)
+		{
+			QString name = QString::fromStdWString(it.first);
+			if (name.contains(" ") || name.contains("\""))
+				name = "\"" + name.replace("\"", "\"\"") + "\"";
+			parameters += " " + name + " " + QString("%1").arg(it.second);
+		}
+	}
+}
+
+void VSTPluginFilterGUI::loadPreferences(const QVariantMap& prefs)
+{
+	autoApplyDialog = prefs.value("autoApplyDialog").toBool();
+
+	if (prefs.value("embed").toBool())
+		// will also call initPlugin
+		ui->embedAction->setChecked(true);
+	else
+		initPlugin();
+}
+
+void VSTPluginFilterGUI::storePreferences(QVariantMap& prefs)
+{
+	prefs.insert("embed", ui->embedAction->isChecked());
+	prefs.insert("autoApplyDialog", autoApplyDialog);
+}
+
+void VSTPluginFilterGUI::on_openPanelButton_clicked()
+{
+	initPlugin();
+
+	if (effect != NULL)
+	{
+		effect->writeToEffect(chunkData, paramMap);
+
+		VSTPluginFilterGUIDialog dialog(this, effect, autoApplyDialog);
+		connect(dialog.getApplyButton(), SIGNAL(pressed()), SLOT(applyDialog()));
+		connect(dialog.getAutoApplyCheckBox(), SIGNAL(toggled(bool)), SLOT(autoApplyToggled(bool)));
+		connect(QAbstractEventDispatcher::instance(), SIGNAL(aboutToBlock()), SLOT(on_idle()));
+
+		if (dialog.exec() == QDialog::Accepted)
+		{
+			effect->readFromEffect(chunkData, paramMap);
+			updateModel();
+			updatePermissionWarning();
+		}
+		disconnect(QAbstractEventDispatcher::instance(), SIGNAL(aboutToBlock()), this, SLOT(on_idle()));
+	}
+}
+
+void VSTPluginFilterGUI::applyDialog()
+{
+	effect->readFromEffect(chunkData, paramMap);
+	updateModel();
+	updatePermissionWarning();
+}
+
+void VSTPluginFilterGUI::autoApplyToggled(bool checked)
+{
+	autoApplyDialog = checked;
+}
+
+void VSTPluginFilterGUI::initPlugin()
+{
+	if (effect != NULL)
+		return;
+
+	QColor color;
+	QString text;
+	if (library->getLibPath() == L"")
+	{
+		text = tr("No file selected.");
+		color = Qt::red;
+	}
+	else
+	{
+		int result = library->initialize();
+		if (result < 0)
+		{
+			color = Qt::red;
+
+			switch (result)
+			{
+			case AbstractLibrary::FILE_NOT_FOUND:
+				text = tr("File not found.");
+				break;
+			case AbstractLibrary::LOADING_FAILED:
+				text = tr("Library could not be loaded.");
+				break;
+			case AbstractLibrary::FUNCTIONS_MISSING:
+				text = tr("Library does not contain needed functions.");
+				break;
+			case AbstractLibrary::WRONG_ARCHITECTURE:
+#ifdef _WIN64
+				int bitDepth = 64;
+#else
+				int bitDepth = 32;
+#endif
+				text = tr("Library has the wrong architecture. Only %1-bit libraries are supported.").arg(bitDepth);
+				break;
+			}
+		}
+		else
+		{
+			effect = new VSTPluginInstance(library, 1);
+			if (effect->initialize())
+			{
+				effect->setLanguage(QLocale().language() == QLocale::German ? 2 : 1);
+				effect->setAutomateFunc(bind(&VSTPluginFilterGUI::onAutomate, this));
+
+				color = Qt::black;
+				text = QString::fromStdWString(effect->getName());
+			}
+			else
+			{
+				delete effect;
+				effect = NULL;
+
+				color = Qt::red;
+				text = tr("Plugin crashed during initialization.");
+			}
+		}
+	}
+
+	QPalette palette = ui->statusLabel->palette();
+	palette.setColor(QPalette::Active, QPalette::WindowText, color);
+	palette.setColor(QPalette::Inactive, QPalette::WindowText, color);
+	ui->statusLabel->setPalette(palette);
+	ui->statusLabel->setText(text);
+}
+
+void VSTPluginFilterGUI::on_pathLineEdit_editingFinished()
+{
+	if (QString::fromStdWString(library->getLibPath()) != ui->pathLineEdit->text())
+	{
+		int oldId = 0;
+		if (effect != NULL)
+		{
+			oldId = effect->uniqueID();
+			if (ui->embedAction->isChecked())
+				on_embedAction_toggled(false);
+			delete effect;
+			effect = NULL;
+		}
+
+		QDir pluginsDir(QString::fromStdWString(VSTPluginLibrary::getDefaultPluginPath()));
+		QString path = ui->pathLineEdit->text();
+		if (path.length() > 0)
+			path = QDir::toNativeSeparators(QFileInfo(pluginsDir, ui->pathLineEdit->text()).absoluteFilePath());
+		library = VSTPluginLibrary::getInstance(path.toStdWString());
+		initPlugin();
+
+		if (effect == NULL || oldId == 0 || effect->uniqueID() != oldId)
+		{
+			chunkData = L"";
+			paramMap.clear();
+		}
+
+		updateModel();
+		updatePermissionWarning();
+
+		if (ui->embedAction->isChecked())
+			on_embedAction_toggled(true);
+	}
+}
+
+void VSTPluginFilterGUI::on_selectButton_clicked()
+{
+	QDir pluginsDir(QString::fromStdWString(VSTPluginLibrary::getDefaultPluginPath()));
+
+	QSettings settings(QString::fromWCharArray(EDITOR_REGPATH), QSettings::NativeFormat);
+	QString lastDir = settings.value("vst/lastDir", "").toString();
+	if (lastDir == "")
+		lastDir = pluginsDir.absolutePath();
+
+	QFileInfo fileInfo(lastDir);
+	QString path = ui->pathLineEdit->text();
+	if (path.length() > 0)
+		fileInfo.setFile(pluginsDir, path);
+
+	QFileDialog dialog(this, tr("Select VST plugin"), fileInfo.absoluteFilePath(), "*.dll");
+	dialog.setFileMode(QFileDialog::ExistingFile);
+	dialog.setNameFilter(tr("VST plugins (*.dll)"));
+	if (path.length() > 0)
+		dialog.selectFile(fileInfo.fileName());
+	if (dialog.exec() == QDialog::Accepted)
+	{
+		QString absolutePath = dialog.selectedFiles().first();
+		settings.setValue("vst/lastDir", QDir::toNativeSeparators(QFileInfo(absolutePath).absolutePath()));
+		QString relativePath = pluginsDir.relativeFilePath(absolutePath);
+		if (relativePath.startsWith("../../"))
+			relativePath = absolutePath;
+		ui->pathLineEdit->setText(QDir::toNativeSeparators(relativePath));
+		on_pathLineEdit_editingFinished();
+	}
+}
+
+void VSTPluginFilterGUI::on_embedAction_toggled(bool checked)
+{
+	initPlugin();
+
+	ui->openPanelButton->setVisible(!checked);
+
+	bool enable = checked;
+	if (effect == NULL)
+		enable = false;
+
+	bool wasEnabled = ui->frame->isVisible();
+	if (enable != wasEnabled)
+	{
+		ui->frame->setVisible(enable);
+		ui->statusLabel->setVisible(!enable);
+
+		if (enable)
+		{
+			if (embedPlugin())
+			{
+				effect->setSizeWindowFunc(bind(&VSTPluginFilterGUI::onSizeWindow, this, _1, _2));
+				connect(QAbstractEventDispatcher::instance(), SIGNAL(aboutToBlock()), SLOT(on_idle()));
+			}
+			else
+			{
+				ui->frame->setVisible(false);
+				ui->statusLabel->setVisible(true);
+
+				QPalette palette = ui->statusLabel->palette();
+				palette.setColor(QPalette::Active, QPalette::WindowText, Qt::red);
+				palette.setColor(QPalette::Inactive, QPalette::WindowText, Qt::red);
+				ui->statusLabel->setPalette(palette);
+				ui->statusLabel->setText(tr("Plugin crashed when opening panel."));
+			}
+		}
+		else
+		{
+			if (effect != NULL)
+			{
+				effect->stopEditing();
+				effect->setSizeWindowFunc(nullptr);
+			}
+
+			disconnect(QAbstractEventDispatcher::instance(), SIGNAL(aboutToBlock()), this, SLOT(on_idle()));
+		}
+	}
+}
+
+void VSTPluginFilterGUI::on_idle()
+{
+	if (effect != NULL)
+	{
+		effect->doIdle();
+
+		if (ui->frame->isVisible() || autoApplyDialog)
+		{
+			if (!lastReadTimer.isValid() || lastReadTimer.elapsed() > 1000)
+			{
+				wstring newChunkData;
+				unordered_map<std::wstring, float> newParamMap;
+				effect->readFromEffect(newChunkData, newParamMap);
+				if (newChunkData != chunkData || newParamMap != paramMap)
+				{
+					chunkData = newChunkData;
+					paramMap = newParamMap;
+					updateModel();
+					updatePermissionWarning();
+				}
+				lastReadTimer.restart();
+			}
+		}
+	}
+}
+
+void VSTPluginFilterGUI::onAutomate()
+{
+	if (ui->frame->isVisible() || autoApplyDialog)
+	{
+		effect->readFromEffect(chunkData, paramMap);
+		updateModel();
+		updatePermissionWarning();
+	}
+}
+
+void VSTPluginFilterGUI::onSizeWindow(int w, int h)
+{
+	if (ui->frame->isVisible())
+		ui->frame->setFixedSize(w, h);
+}
+
+bool VSTPluginFilterGUI::embedPlugin()
+{
+	bool result = true;
+
+	__try
+	{
+		effect->writeToEffect(chunkData, paramMap);
+
+		HWND hwnd = (HWND)ui->frame->winId();
+		short width, height;
+
+		effect->startEditing(hwnd, &width, &height);
+
+		ui->frame->setFixedSize(width, height);
+	}
+	__except (EXCEPTION_EXECUTE_HANDLER)
+	{
+		result = false;
+	}
+
+	return result;
+}
+
+void VSTPluginFilterGUI::updatePermissionWarning()
+{
+	if (effect == NULL)
+	{
+		ui->warningTextEdit->setVisible(false);
+		return;
+	}
+
+	ACCESS_MASK mask = GENERIC_READ;
+	try
+	{
+		mask = RegistryHelper::getFileAccessForUser(library->getLibPath(), SECURITY_LOCAL_SERVICE_RID);
+	}
+	catch (RegistryException e)
+	{
+		// ignore
+	}
+
+	if ((mask & GENERIC_READ) != GENERIC_READ && (mask & FILE_GENERIC_READ) != FILE_GENERIC_READ)
+	{
+		QString text = tr("The library is not readable by the audio service.\nChange the file permissions or copy the file to the plugins directory.");
+
+		ui->warningTextEdit->setPlainText(text);
+		QSize textSize = ui->warningTextEdit->fontMetrics().size(0, text);
+		ui->warningTextEdit->setFixedSize(textSize + DPIHelper::scale(QSize(40, 15)));
+		ui->warningTextEdit->setVisible(true);
+		return;
+	}
+
+	QStringList files;
+	if (chunkData != L"" && chunkData.length() < 100000)
+	{
+		QByteArray bytes = QByteArray::fromBase64(QString::fromStdWString(chunkData).toUtf8());
+		QString string = QString::fromUtf8(bytes.data(), bytes.length());
+		QRegExp regexp("[A-Za-z]:(?:\\\\[\\w \\(\\)-]+)+\\.[A-Za-z]{3}");
+		int offset = 0;
+		while (offset >= 0)
+		{
+			offset = regexp.indexIn(string, offset);
+			if (offset >= 0)
+			{
+				QString path = regexp.cap();
+				QFile file(path);
+				if (file.exists())
+				{
+					ACCESS_MASK mask = GENERIC_READ;
+					try
+					{
+						mask = RegistryHelper::getFileAccessForUser(path.toStdWString(), SECURITY_LOCAL_SERVICE_RID);
+					}
+					catch (RegistryException e)
+					{
+						// ignore
+					}
+
+					if ((mask & GENERIC_READ) != GENERIC_READ && (mask & FILE_GENERIC_READ) != FILE_GENERIC_READ)
+						files.append(path);
+				}
+				offset += regexp.matchedLength();
+			}
+		}
+	}
+
+	if (files.isEmpty())
+	{
+		ui->warningTextEdit->setVisible(false);
+		ui->warningTextEdit->setPlainText("");
+	}
+	else
+	{
+		files.removeDuplicates();
+		QString text = tr("The plugin seemingly accesses these files not readable by the audio service:\n"
+				"%0\n"
+				"Change the file permissions or copy the files to the config directory.").arg(files.join("\n"));
+		ui->warningTextEdit->setPlainText(text);
+		QSize textSize = ui->warningTextEdit->fontMetrics().size(0, text);
+		ui->warningTextEdit->setFixedSize(textSize + DPIHelper::scale(QSize(40, 15)));
+		ui->warningTextEdit->setVisible(true);
+	}
+}

Editor/guis/VSTPluginFilterGUI.h

@@ -0,0 +1,66 @@
+/*
+    This file is part of Equalizer APO, a system-wide equalizer.
+    Copyright (C) 2017  Jonas Thedering
+
+    This program is free software; you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation; either version 2 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License along
+    with this program; if not, write to the Free Software Foundation, Inc.,
+    51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+*/
+
+#pragma once
+
+#include <memory>
+#include <QElapsedTimer>
+#include "Editor/IFilterGUI.h"
+#include "helpers/VSTPluginLibrary.h"
+
+namespace Ui {
+class VSTPluginFilterGUI;
+}
+
+class VSTPluginFilterGUI : public IFilterGUI
+{
+	Q_OBJECT
+
+public:
+	explicit VSTPluginFilterGUI(std::shared_ptr<VSTPluginLibrary> library, const std::wstring& chunkData, const std::unordered_map<std::wstring, float>& paramMap);
+	~VSTPluginFilterGUI();
+
+	void store(QString& command, QString& parameters) override;
+	void loadPreferences(const QVariantMap& prefs) override;
+	void storePreferences(QVariantMap& prefs) override;
+	void onAutomate();
+	void onSizeWindow(int w, int h);
+
+private slots:
+	void on_openPanelButton_clicked();
+	void applyDialog();
+	void autoApplyToggled(bool checked);
+	void on_pathLineEdit_editingFinished();
+	void on_selectButton_clicked();
+	void on_embedAction_toggled(bool checked);
+	void on_idle();
+
+private:
+	void initPlugin();
+	bool embedPlugin();
+	void updatePermissionWarning();
+
+	Ui::VSTPluginFilterGUI* ui;
+	std::shared_ptr<VSTPluginLibrary> library;
+	VSTPluginInstance* effect = NULL;
+	std::wstring chunkData;
+	std::unordered_map<std::wstring, float> paramMap;
+	bool autoApplyDialog = false;
+	QElapsedTimer lastReadTimer;
+};

Editor/guis/VSTPluginFilterGUI.ui

@@ -0,0 +1,203 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<ui version="4.0">
+ <class>VSTPluginFilterGUI</class>
+ <widget class="QWidget" name="VSTPluginFilterGUI">
+  <property name="geometry">
+   <rect>
+    <x>0</x>
+    <y>0</y>
+    <width>542</width>
+    <height>166</height>
+   </rect>
+  </property>
+  <property name="windowTitle">
+   <string notr="true"/>
+  </property>
+  <layout class="QGridLayout" name="gridLayout_3" columnstretch="0,0,0,0,1">
+   <property name="leftMargin">
+    <number>0</number>
+   </property>
+   <property name="topMargin">
+    <number>0</number>
+   </property>
+   <property name="rightMargin">
+    <number>0</number>
+   </property>
+   <property name="bottomMargin">
+    <number>0</number>
+   </property>
+   <property name="verticalSpacing">
+    <number>5</number>
+   </property>
+   <item row="0" column="1">
+    <widget class="ResizingLineEdit" name="pathLineEdit"/>
+   </item>
+   <item row="1" column="2" colspan="2">
+    <widget class="QPushButton" name="openPanelButton">
+     <property name="sizePolicy">
+      <sizepolicy hsizetype="Fixed" vsizetype="Fixed">
+       <horstretch>0</horstretch>
+       <verstretch>0</verstretch>
+      </sizepolicy>
+     </property>
+     <property name="text">
+      <string>Open panel</string>
+     </property>
+    </widget>
+   </item>
+   <item row="0" column="0">
+    <widget class="QLabel" name="label">
+     <property name="sizePolicy">
+      <sizepolicy hsizetype="Fixed" vsizetype="Preferred">
+       <horstretch>0</horstretch>
+       <verstretch>0</verstretch>
+      </sizepolicy>
+     </property>
+     <property name="text">
+      <string>VST plugin:</string>
+     </property>
+    </widget>
+   </item>
+   <item row="1" column="0" colspan="2">
+    <widget class="QLabel" name="statusLabel">
+     <property name="text">
+      <string notr="true"/>
+     </property>
+    </widget>
+   </item>
+   <item row="0" column="4">
+    <spacer name="horizontalSpacer">
+     <property name="orientation">
+      <enum>Qt::Horizontal</enum>
+     </property>
+     <property name="sizeHint" stdset="0">
+      <size>
+       <width>40</width>
+       <height>20</height>
+      </size>
+     </property>
+    </spacer>
+   </item>
+   <item row="0" column="3">
+    <widget class="QToolButton" name="optionsButton">
+     <property name="text">
+      <string>Options</string>
+     </property>
+     <property name="popupMode">
+      <enum>QToolButton::MenuButtonPopup</enum>
+     </property>
+     <property name="toolButtonStyle">
+      <enum>Qt::ToolButtonTextOnly</enum>
+     </property>
+    </widget>
+   </item>
+   <item row="0" column="2">
+    <widget class="QToolButton" name="selectButton">
+     <property name="text">
+      <string notr="true"/>
+     </property>
+     <property name="icon">
+      <iconset resource="../Editor.qrc">
+       <normaloff>:/icons/document-open.ico</normaloff>:/icons/document-open.ico</iconset>
+     </property>
+    </widget>
+   </item>
+   <item row="2" column="0" colspan="4">
+    <widget class="QFrame" name="frame">
+     <property name="frameShape">
+      <enum>QFrame::StyledPanel</enum>
+     </property>
+     <property name="frameShadow">
+      <enum>QFrame::Raised</enum>
+     </property>
+    </widget>
+   </item>
+   <item row="3" column="0" colspan="4">
+    <widget class="QPlainTextEdit" name="warningTextEdit">
+     <property name="sizePolicy">
+      <sizepolicy hsizetype="Expanding" vsizetype="Preferred">
+       <horstretch>0</horstretch>
+       <verstretch>0</verstretch>
+      </sizepolicy>
+     </property>
+     <property name="palette">
+      <palette>
+       <active>
+        <colorrole role="Base">
+         <brush brushstyle="SolidPattern">
+          <color alpha="255">
+           <red>255</red>
+           <green>255</green>
+           <blue>127</blue>
+          </color>
+         </brush>
+        </colorrole>
+       </active>
+       <inactive>
+        <colorrole role="Base">
+         <brush brushstyle="SolidPattern">
+          <color alpha="255">
+           <red>255</red>
+           <green>255</green>
+           <blue>127</blue>
+          </color>
+         </brush>
+        </colorrole>
+       </inactive>
+       <disabled>
+        <colorrole role="Base">
+         <brush brushstyle="SolidPattern">
+          <color alpha="255">
+           <red>240</red>
+           <green>240</green>
+           <blue>240</blue>
+          </color>
+         </brush>
+        </colorrole>
+       </disabled>
+      </palette>
+     </property>
+     <property name="sizeAdjustPolicy">
+      <enum>QAbstractScrollArea::AdjustToContents</enum>
+     </property>
+    </widget>
+   </item>
+  </layout>
+  <action name="embedAction">
+   <property name="checkable">
+    <bool>true</bool>
+   </property>
+   <property name="text">
+    <string>Embed</string>
+   </property>
+  </action>
+ </widget>
+ <customwidgets>
+  <customwidget>
+   <class>ResizingLineEdit</class>
+   <extends>QLineEdit</extends>
+   <header>Editor/widgets/ResizingLineEdit.h</header>
+  </customwidget>
+ </customwidgets>
+ <resources>
+  <include location="../Editor.qrc"/>
+ </resources>
+ <connections>
+  <connection>
+   <sender>optionsButton</sender>
+   <signal>clicked()</signal>
+   <receiver>optionsButton</receiver>
+   <slot>showMenu()</slot>
+   <hints>
+    <hint type="sourcelabel">
+     <x>288</x>
+     <y>12</y>
+    </hint>
+    <hint type="destinationlabel">
+     <x>288</x>
+     <y>12</y>
+    </hint>
+   </hints>
+  </connection>
+ </connections>
+</ui>

Editor/guis/VSTPluginFilterGUIDialog.cpp

@@ -0,0 +1,75 @@
+/*
+    This file is part of Equalizer APO, a system-wide equalizer.
+    Copyright (C) 2017  Jonas Thedering
+
+    This program is free software; you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation; either version 2 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License along
+    with this program; if not, write to the Free Software Foundation, Inc.,
+    51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+*/
+
+#include <QPushButton>
+#include "VSTPluginFilterGUIDialog.h"
+#include "ui_VSTPluginFilterGUIDialog.h"
+
+using namespace std;
+using namespace std::placeholders;
+
+VSTPluginFilterGUIDialog::VSTPluginFilterGUIDialog(QWidget* parent, VSTPluginInstance* effect, bool autoApply)
+	: QDialog(parent, Qt::WindowCloseButtonHint),
+	ui(new Ui::VSTPluginFilterGUIDialog),
+	effect(effect)
+{
+	ui->setupUi(this);
+	ui->autoApplyCheckBox->setChecked(autoApply);
+
+	QString name = QString::fromStdWString(effect->getName());
+	setWindowTitle(name);
+
+	HWND hwnd = (HWND)ui->frame->winId();
+
+	short width, height;
+
+	effect->startEditing(hwnd, &width, &height);
+
+	ui->frame->setFixedSize(width, height);
+	effect->setSizeWindowFunc(bind(&VSTPluginFilterGUIDialog::onSizeWindow, this, _1, _2));
+}
+
+VSTPluginFilterGUIDialog::~VSTPluginFilterGUIDialog()
+{
+	effect->stopEditing();
+	effect->setSizeWindowFunc(nullptr);
+
+	delete ui;
+}
+
+QPushButton* VSTPluginFilterGUIDialog::getApplyButton()
+{
+	return ui->buttonBox->button(QDialogButtonBox::Apply);
+}
+
+QCheckBox* VSTPluginFilterGUIDialog::getAutoApplyCheckBox()
+{
+	return ui->autoApplyCheckBox;
+}
+
+void VSTPluginFilterGUIDialog::onSizeWindow(int w, int h)
+{
+	ui->frame->setFixedSize(w, h);
+}
+
+void VSTPluginFilterGUIDialog::on_autoApplyCheckBox_clicked(bool checked)
+{
+	if (checked)
+		getApplyButton()->click();
+}

Editor/guis/VSTPluginFilterGUIDialog.h

@@ -0,0 +1,49 @@
+/*
+    This file is part of Equalizer APO, a system-wide equalizer.
+    Copyright (C) 2017  Jonas Thedering
+
+    This program is free software; you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation; either version 2 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License along
+    with this program; if not, write to the Free Software Foundation, Inc.,
+    51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+*/
+
+#pragma once
+
+#include <QDialog>
+#include <QCheckBox>
+#include "helpers/VSTPluginInstance.h"
+
+namespace Ui {
+class VSTPluginFilterGUIDialog;
+}
+
+class VSTPluginFilterGUIDialog : public QDialog
+{
+	Q_OBJECT
+
+public:
+	explicit VSTPluginFilterGUIDialog(QWidget* parent, VSTPluginInstance* effect, bool autoApply);
+	~VSTPluginFilterGUIDialog();
+
+	QPushButton* getApplyButton();
+	QCheckBox* getAutoApplyCheckBox();
+
+	void onSizeWindow(int w, int h);
+
+private slots:
+	void on_autoApplyCheckBox_clicked(bool checked);
+
+private:
+	Ui::VSTPluginFilterGUIDialog* ui;
+	VSTPluginInstance* effect;
+};

Editor/guis/VSTPluginFilterGUIDialog.ui

@@ -0,0 +1,87 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<ui version="4.0">
+ <class>VSTPluginFilterGUIDialog</class>
+ <widget class="QDialog" name="VSTPluginFilterGUIDialog">
+  <property name="geometry">
+   <rect>
+    <x>0</x>
+    <y>0</y>
+    <width>459</width>
+    <height>300</height>
+   </rect>
+  </property>
+  <property name="windowTitle">
+   <string notr="true"/>
+  </property>
+  <layout class="QGridLayout" name="gridLayout">
+   <item row="1" column="1">
+    <widget class="QCheckBox" name="autoApplyCheckBox">
+     <property name="text">
+      <string>Apply automatically</string>
+     </property>
+    </widget>
+   </item>
+   <item row="1" column="0">
+    <widget class="QDialogButtonBox" name="buttonBox">
+     <property name="sizePolicy">
+      <sizepolicy hsizetype="Expanding" vsizetype="Fixed">
+       <horstretch>0</horstretch>
+       <verstretch>0</verstretch>
+      </sizepolicy>
+     </property>
+     <property name="orientation">
+      <enum>Qt::Horizontal</enum>
+     </property>
+     <property name="standardButtons">
+      <set>QDialogButtonBox::Apply|QDialogButtonBox::Cancel|QDialogButtonBox::Ok</set>
+     </property>
+    </widget>
+   </item>
+   <item row="0" column="0" colspan="2">
+    <widget class="QFrame" name="frame">
+     <property name="frameShape">
+      <enum>QFrame::StyledPanel</enum>
+     </property>
+     <property name="frameShadow">
+      <enum>QFrame::Raised</enum>
+     </property>
+    </widget>
+   </item>
+  </layout>
+ </widget>
+ <resources/>
+ <connections>
+  <connection>
+   <sender>buttonBox</sender>
+   <signal>accepted()</signal>
+   <receiver>VSTPluginFilterGUIDialog</receiver>
+   <slot>accept()</slot>
+   <hints>
+    <hint type="sourcelabel">
+     <x>248</x>
+     <y>254</y>
+    </hint>
+    <hint type="destinationlabel">
+     <x>157</x>
+     <y>274</y>
+    </hint>
+   </hints>
+  </connection>
+  <connection>
+   <sender>buttonBox</sender>
+   <signal>rejected()</signal>
+   <receiver>VSTPluginFilterGUIDialog</receiver>
+   <slot>reject()</slot>
+   <hints>
+    <hint type="sourcelabel">
+     <x>316</x>
+     <y>260</y>
+    </hint>
+    <hint type="destinationlabel">
+     <x>286</x>
+     <y>274</y>
+    </hint>
+   </hints>
+  </connection>
+ </connections>
+</ui>

Editor/guis/VSTPluginFilterGUIFactory.cpp

@@ -0,0 +1,62 @@
+/*
+    This file is part of Equalizer APO, a system-wide equalizer.
+    Copyright (C) 2017  Jonas Thedering
+
+    This program is free software; you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation; either version 2 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License along
+    with this program; if not, write to the Free Software Foundation, Inc.,
+    51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+*/
+
+#include "helpers/VSTPluginLibrary.h"
+#include "helpers/StringHelper.h"
+#include "filters/VSTPluginFilterFactory.h"
+#include "filters/VSTPluginFilter.h"
+#include "VSTPluginFilterGUI.h"
+#include "VSTPluginFilterGUIFactory.h"
+
+using namespace std;
+
+QList<FilterTemplate> VSTPluginFilterGUIFactory::createFilterTemplates()
+{
+	QList<FilterTemplate> list;
+	list.append(FilterTemplate(tr("VST plugin"), "VSTPlugin:", QStringList(tr("Plugins"))));
+	return list;
+}
+
+IFilterGUI* VSTPluginFilterGUIFactory::createFilterGUI(QString& command, QString& parameters)
+{
+	VSTPluginFilterGUI* result = NULL;
+
+	if (command == "VSTPlugin")
+	{
+		VSTPluginFilterFactory factory;
+		std::vector<IFilter*> filters = factory.createFilter(L"", command.toStdWString(), parameters.toStdWString());
+		if (!filters.empty())
+		{
+			VSTPluginFilter* filter = (VSTPluginFilter*)filters[0];
+			result = new VSTPluginFilterGUI(filter->getLibrary(), filter->getChunkData(), filter->getParamMap());
+		}
+		else
+		{
+			result = new VSTPluginFilterGUI(VSTPluginLibrary::getInstance(L""), L"", unordered_map<wstring, float>());
+		}
+
+		for (IFilter* f : filters)
+		{
+			f->~IFilter();
+			MemoryHelper::free(f);
+		}
+	}
+
+	return result;
+}

Editor/guis/VSTPluginFilterGUIFactory.h

@@ -0,0 +1,30 @@
+/*
+	This file is part of Equalizer APO, a system-wide equalizer.
+	Copyright (C) 2017  Jonas Thedering
+
+	This program is free software; you can redistribute it and/or modify
+	it under the terms of the GNU General Public License as published by
+	the Free Software Foundation; either version 2 of the License, or
+	(at your option) any later version.
+
+	This program is distributed in the hope that it will be useful,
+	but WITHOUT ANY WARRANTY; without even the implied warranty of
+	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+	GNU General Public License for more details.
+
+	You should have received a copy of the GNU General Public License along
+	with this program; if not, write to the Free Software Foundation, Inc.,
+	51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+*/
+#pragma once
+
+#include "Editor/IFilterGUIFactory.h"
+
+class VSTPluginFilterGUIFactory : public IFilterGUIFactory
+{
+	Q_OBJECT
+
+public:
+	QList<FilterTemplate> createFilterTemplates() override;
+	IFilterGUI* createFilterGUI(QString& command, QString& parameters) override;
+};

Editor/translations/Editor_de.ts

@@ -281,24 +281,24 @@
         <translation>Faltung mit Impulsantwort:</translation>
     </message>
     <message>
-        <location filename="../guis/ConvolutionFilterGUI.ui" line="66"/>
+        <location filename="../guis/ConvolutionFilterGUI.ui" line="73"/>
         <source>File information</source>
         <translation>Dateiinformationen</translation>
     </message>
     <message>
-        <location filename="../guis/ConvolutionFilterGUI.ui" line="72"/>
+        <location filename="../guis/ConvolutionFilterGUI.ui" line="79"/>
         <source>Sample rate:</source>
         <translation>Abtastrate:</translation>
     </message>
     <message>
-        <location filename="../guis/ConvolutionFilterGUI.ui" line="79"/>
+        <location filename="../guis/ConvolutionFilterGUI.ui" line="86"/>
-        <location filename="../guis/ConvolutionFilterGUI.ui" line="137"/>
+        <location filename="../guis/ConvolutionFilterGUI.ui" line="144"/>
         <location filename="../guis/ConvolutionFilterGUI.cpp" line="91"/>
         <source>No file selected</source>
         <translation>Keine Datei gewählt</translation>
     </message>
     <message>
-        <location filename="../guis/ConvolutionFilterGUI.ui" line="130"/>
+        <location filename="../guis/ConvolutionFilterGUI.ui" line="137"/>
         <source>Length:</source>
         <translation>Länge:</translation>
     </message>
@@ -661,7 +661,7 @@ Wählen Sie eine andere Datei oder ändern Sie die Konfiguration des Geräts.</t
 <context>
     <name>FilterTable</name>
     <message>
-        <location filename="../FilterTable.cpp" line="205"/>
+        <location filename="../FilterTable.cpp" line="214"/>
         <source>Add filter</source>
         <translation>Filter hinzufügen</translation>
     </message>
@@ -838,12 +838,12 @@ Wählen Sie eine andere Datei oder ändern Sie die Konfiguration des Geräts.</t
 <context>
     <name>IncludeFilterGUI</name>
     <message>
-        <location filename="../guis/IncludeFilterGUI.ui" line="70"/>
+        <location filename="../guis/IncludeFilterGUI.ui" line="77"/>
         <source>Include:</source>
         <translation>Einbinden:</translation>
     </message>
     <message>
-        <location filename="../guis/IncludeFilterGUI.ui" line="59"/>
+        <location filename="../guis/IncludeFilterGUI.ui" line="66"/>
         <source>Select file</source>
         <translation>Datei auswählen</translation>
     </message>
@@ -1198,11 +1198,12 @@ Möchten Sie die Configurator-Anwendung starten, um das Problem zu beheben?</tra
     <message>
         <location filename="../MainWindow.cpp" line="426"/>
         <location filename="../MainWindow.cpp" line="428"/>
+        <location filename="../MainWindow.cpp" line="432"/>
         <source>From device</source>
         <translation>Von Gerät</translation>
     </message>
     <message>
-        <location filename="../MainWindow.cpp" line="704"/>
+        <location filename="../MainWindow.cpp" line="710"/>
         <source>%0 dB</source>
         <translation>%0 dB</translation>
     </message>
@@ -1211,7 +1212,7 @@ Möchten Sie die Configurator-Anwendung starten, um das Problem zu beheben?</tra
         <translation type="vanished">%0 ms (%1 Samp.)</translation>
     </message>
     <message>
-        <location filename="../MainWindow.cpp" line="707"/>
+        <location filename="../MainWindow.cpp" line="713"/>
         <source>%0 ms (%1 s.)</source>
         <translation>%0 ms (%1 S.)</translation>
     </message>
@@ -1220,46 +1221,46 @@ Möchten Sie die Configurator-Anwendung starten, um das Problem zu beheben?</tra
         <translation type="vanished">%0 ms (%1 Samples)</translation>
     </message>
     <message>
-        <location filename="../MainWindow.cpp" line="709"/>
+        <location filename="../MainWindow.cpp" line="715"/>
         <source>%0 ms</source>
         <translation>%0 ms</translation>
     </message>
     <message>
-        <location filename="../MainWindow.cpp" line="712"/>
+        <location filename="../MainWindow.cpp" line="718"/>
         <source>%0 % (one core)</source>
         <translation>%0 % (ein Kern)</translation>
     </message>
     <message>
-        <location filename="../MainWindow.cpp" line="750"/>
+        <location filename="../MainWindow.cpp" line="759"/>
-        <location filename="../MainWindow.cpp" line="777"/>
+        <location filename="../MainWindow.cpp" line="786"/>
-        <location filename="../MainWindow.cpp" line="796"/>
+        <location filename="../MainWindow.cpp" line="805"/>
         <source>Restart required</source>
         <translation>Neustart erforderlich</translation>
     </message>
     <message>
-        <location filename="../MainWindow.cpp" line="750"/>
+        <location filename="../MainWindow.cpp" line="759"/>
-        <location filename="../MainWindow.cpp" line="777"/>
+        <location filename="../MainWindow.cpp" line="786"/>
-        <location filename="../MainWindow.cpp" line="796"/>
+        <location filename="../MainWindow.cpp" line="805"/>
         <source>Configuration Editor will be restarted to apply the changed settings. Proceed?</source>
         <translation>Konfigurationseditor wird neugestartet, um die geänderten Einstellungen zu übernehmen. Fortsetzen?</translation>
     </message>
     <message>
-        <location filename="../MainWindow.cpp" line="856"/>
+        <location filename="../MainWindow.cpp" line="865"/>
         <source>Unsaved changes</source>
         <translation>Ungespeicherte Änderungen</translation>
     </message>
     <message>
-        <location filename="../MainWindow.cpp" line="857"/>
+        <location filename="../MainWindow.cpp" line="866"/>
         <source>The configuration file %0 has unsaved changes.</source>
         <translation>Die Konfigurationsdatei %0 hat ungespeicherte Änderungen.</translation>
     </message>
     <message>
-        <location filename="../MainWindow.cpp" line="858"/>
+        <location filename="../MainWindow.cpp" line="867"/>
         <source>Do you want to save the changes before closing the file?</source>
         <translation>Möchten Sie die Änderungen speichern, bevor die Datei geschlossen wird?</translation>
     </message>
     <message>
-        <location filename="../MainWindow.cpp" line="529"/>
+        <location filename="../MainWindow.cpp" line="535"/>
         <source>Open file</source>
         <translation>Datei öffnen</translation>
     </message>
@@ -1269,22 +1270,110 @@ Möchten Sie die Configurator-Anwendung starten, um das Problem zu beheben?</tra
         <translation>Automatisch (%0)</translation>
     </message>
     <message>
-        <location filename="../MainWindow.cpp" line="531"/>
+        <location filename="../MainWindow.cpp" line="537"/>
-        <location filename="../MainWindow.cpp" line="584"/>
+        <location filename="../MainWindow.cpp" line="590"/>
         <source>E-APO configurations (*.txt)</source>
         <translation>E-APO-Konfigurationen (*.txt)</translation>
     </message>
     <message>
-        <location filename="../MainWindow.cpp" line="581"/>
+        <location filename="../MainWindow.cpp" line="587"/>
         <source>Save file as</source>
         <translation>Datei speichern unter</translation>
     </message>
     <message>
-        <location filename="../MainWindow.cpp" line="603"/>
+        <location filename="../MainWindow.cpp" line="609"/>
         <source>Unsaved</source>
         <translation>Ungespeichert</translation>
     </message>
 </context>
+<context>
+    <name>MathAudioFilterGUI</name>
+    <message>
+        <source>Open panel</source>
+        <translation type="vanished">Panel öffnen</translation>
+    </message>
+    <message>
+        <source>Status information</source>
+        <translation type="vanished">Statusinformationen</translation>
+    </message>
+    <message>
+        <source>File %1 not found.</source>
+        <translation type="vanished">Datei %1 nicht gefunden.</translation>
+    </message>
+    <message>
+        <source>Library %1 could not be loaded.</source>
+        <translation type="vanished">Bibliothek %1 konnte nicht geladen werden.</translation>
+    </message>
+    <message>
+        <source>Library %1 does not contain needed functions.</source>
+        <translation type="vanished">Bibliothek %1 enthält nicht die benötigten Funktionen.</translation>
+    </message>
+    <message>
+        <source>Library %1 could not be initialized.</source>
+        <translation type="vanished">Bibliothek %1 konnte nicht initialisiert werden.</translation>
+    </message>
+    <message>
+        <source>Get library from &lt;a href=&quot;%1&quot;&gt;download page&lt;/a&gt; and&lt;br&gt;extract %2-bit version of %3 into &lt;a href=&quot;%4&quot;&gt;plugins&lt;/a&gt; directory.</source>
+        <translation type="vanished">Bibliothek von der &lt;a href=&quot;%1&quot;&gt;Downloadseite&lt;/a&gt; laden und&lt;br&gt;die %2-bit-Version von %3 in das Verzeichnis &lt;a href=&quot;%4&quot;&gt;plugins&lt;/a&gt; extrahieren.</translation>
+    </message>
+    <message>
+        <source>Library loaded successfully. Version: %1</source>
+        <translation type="vanished">Bibliothek erfolgreich geladen. Version: %1</translation>
+    </message>
+    <message>
+        <source>For updates, get new version from &lt;a href=&quot;%1&quot;&gt;download page&lt;/a&gt;, close Configuration Editor and&lt;br&gt;extract %2-bit version of %3 into &lt;a href=&quot;%4&quot;&gt;plugins&lt;/a&gt; directory.</source>
+        <translation type="vanished">Für Updates, neue Version von der &lt;a href=&quot;%1&quot;&gt;Downloadseite&lt;/a&gt; laden, den Konfigurationseditor schließen und&lt;br&gt;die %2-bit-Version von %3 in das Verzeichnis &lt;a href=&quot;%4&quot;&gt;plugins&lt;/a&gt; extrahieren.</translation>
+    </message>
+</context>
+<context>
+    <name>MathAudioFilterGUIFactory</name>
+    <message>
+        <source>Plugins</source>
+        <translation type="vanished">Plugins</translation>
+    </message>
+</context>
+<context>
+    <name>MathAudioHeadphoneEQFilterGUI</name>
+    <message>
+        <source>Open panel</source>
+        <translation type="vanished">Panel öffnen</translation>
+    </message>
+    <message>
+        <source>Status information</source>
+        <translation type="vanished">Statusinformationen</translation>
+    </message>
+    <message>
+        <source>File %1 not found.</source>
+        <translation type="vanished">Datei %1 nicht gefunden.</translation>
+    </message>
+    <message>
+        <source>Library %1 could not be loaded.</source>
+        <translation type="vanished">Bibliothek %1 konnte nicht geladen werden.</translation>
+    </message>
+    <message>
+        <source>Library %1 does not contain needed functions.</source>
+        <translation type="vanished">Bibliothek %1 enthält nicht die benötigten Funktionen.</translation>
+    </message>
+    <message>
+        <source>Get library from &lt;a href=&quot;%1&quot;&gt;download page&lt;/a&gt; and&lt;br&gt;extract %2-bit version of %3 into &lt;a href=&quot;%4&quot;&gt;plugins&lt;/a&gt; directory.</source>
+        <translation type="vanished">Bibliothek von der &lt;a href=&quot;%1&quot;&gt;Downloadseite&lt;/a&gt; laden und&lt;br&gt;die %2-bit-Version von %3 in das Verzeichnis &lt;a href=&quot;%4&quot;&gt;plugins&lt;/a&gt; extrahieren.</translation>
+    </message>
+    <message>
+        <source>Library loaded successfully.</source>
+        <translation type="vanished">Bibliothek erfolgreich geladen.</translation>
+    </message>
+    <message>
+        <source>For updates, get new version from &lt;a href=&quot;%1&quot;&gt;download page&lt;/a&gt;, close Configuration Editor and&lt;br&gt;extract %2-bit version of %3 into &lt;a href=&quot;%4&quot;&gt;plugins&lt;/a&gt; directory.</source>
+        <translation type="vanished">Für Updates, neue Version von der &lt;a href=&quot;%1&quot;&gt;Downloadseite&lt;/a&gt; laden, den Konfigurationseditor schließen und&lt;br&gt;die %2-bit-Version von %3 in das Verzeichnis &lt;a href=&quot;%4&quot;&gt;plugins&lt;/a&gt; extrahieren.</translation>
+    </message>
+</context>
+<context>
+    <name>MathAudioHeadphoneEQFilterGUIFactory</name>
+    <message>
+        <source>Plugins</source>
+        <translation type="vanished">Plugins</translation>
+    </message>
+</context>
 <context>
     <name>PreampFilterGUI</name>
     <message>
@@ -1374,4 +1463,113 @@ Möchten Sie die Configurator-Anwendung starten, um das Problem zu beheben?</tra
         <translation>Steuerung</translation>
     </message>
 </context>
+<context>
+    <name>VSTPluginFilterGUI</name>
+    <message>
+        <location filename="../guis/VSTPluginFilterGUI.ui" line="84"/>
+        <source>Options</source>
+        <translation>Optionen</translation>
+    </message>
+    <message>
+        <location filename="../guis/VSTPluginFilterGUI.ui" line="44"/>
+        <source>Open panel</source>
+        <translation>Panel öffnen</translation>
+    </message>
+    <message>
+        <location filename="../guis/VSTPluginFilterGUI.ui" line="57"/>
+        <source>VST plugin:</source>
+        <translation>VST-Plugin:</translation>
+    </message>
+    <message>
+        <location filename="../guis/VSTPluginFilterGUI.ui" line="171"/>
+        <source>Embed</source>
+        <translation>Einbetten</translation>
+    </message>
+    <message>
+        <source>No file selected</source>
+        <translation type="vanished">Keine Datei gewählt</translation>
+    </message>
+    <message>
+        <location filename="../guis/VSTPluginFilterGUI.cpp" line="162"/>
+        <source>No file selected.</source>
+        <translation>Keine Datei gewählt.</translation>
+    </message>
+    <message>
+        <location filename="../guis/VSTPluginFilterGUI.cpp" line="175"/>
+        <source>File not found.</source>
+        <translation>Datei nicht gefunden.</translation>
+    </message>
+    <message>
+        <location filename="../guis/VSTPluginFilterGUI.cpp" line="178"/>
+        <source>Library could not be loaded.</source>
+        <translation>Bibliothek konnte nicht geladen werden.</translation>
+    </message>
+    <message>
+        <location filename="../guis/VSTPluginFilterGUI.cpp" line="181"/>
+        <source>Library does not contain needed functions.</source>
+        <translation>Bibliothek enthält benötigte Funktionen nicht.</translation>
+    </message>
+    <message>
+        <location filename="../guis/VSTPluginFilterGUI.cpp" line="189"/>
+        <source>Library has the wrong architecture. Only %1-bit libraries are supported.</source>
+        <translation>Bibliothek hat die falsche Architektur. Nur %1-bit-Bibliotheken werden unterstützt.</translation>
+    </message>
+    <message>
+        <location filename="../guis/VSTPluginFilterGUI.cpp" line="210"/>
+        <source>Plugin crashed during initialization.</source>
+        <translation>Plugin ist bei der Initialisierung abgestürzt.</translation>
+    </message>
+    <message>
+        <location filename="../guis/VSTPluginFilterGUI.cpp" line="271"/>
+        <source>Select VST plugin</source>
+        <translation>VST-Plugin wählen</translation>
+    </message>
+    <message>
+        <location filename="../guis/VSTPluginFilterGUI.cpp" line="273"/>
+        <source>VST plugins (*.dll)</source>
+        <translation>VST-Plugins (*.dll)</translation>
+    </message>
+    <message>
+        <location filename="../guis/VSTPluginFilterGUI.cpp" line="320"/>
+        <source>Plugin crashed when opening panel.</source>
+        <translation>Plugin ist beim Öffnen des Panels abgestürzt.</translation>
+    </message>
+    <message>
+        <location filename="../guis/VSTPluginFilterGUI.cpp" line="418"/>
+        <source>The library is not readable by the audio service.
+Change the file permissions or copy the file to the plugins directory.</source>
+        <translation>Die Bibliothek ist für den Audiodienst nicht lesbar.
+Ändern Sie die Dateiberechtigungen oder kopieren Sie die Datei in das plugins-Verzeichnis.</translation>
+    </message>
+    <message>
+        <location filename="../guis/VSTPluginFilterGUI.cpp" line="469"/>
+        <source>The plugin seemingly accesses these files not readable by the audio service:
+%0
+Change the file permissions or copy the files to the config directory.</source>
+        <translation>Das Plugin scheint auf diese für den Audiodienst nicht lesbaren Dateien zuzugreifen:
+%0
+Ändern Sie die Dateiberechtigungen oder kopieren Sie die Dateien in das config-Verzeichnis.</translation>
+    </message>
+</context>
+<context>
+    <name>VSTPluginFilterGUIDialog</name>
+    <message>
+        <location filename="../guis/VSTPluginFilterGUIDialog.ui" line="20"/>
+        <source>Apply automatically</source>
+        <translation>Automatisch anwenden</translation>
+    </message>
+</context>
+<context>
+    <name>VSTPluginFilterGUIFactory</name>
+    <message>
+        <location filename="../guis/VSTPluginFilterGUIFactory.cpp" line="32"/>
+        <source>VST plugin</source>
+        <translation>VST-Plugin</translation>
+    </message>
+    <message>
+        <location filename="../guis/VSTPluginFilterGUIFactory.cpp" line="32"/>
+        <source>Plugins</source>
+        <translation>Plugins</translation>
+    </message>
+</context>
 </TS>

Editor/widgets/EscapableLineEdit.cpp

@@ -26,9 +26,13 @@ EscapableLineEdit::EscapableLineEdit(QWidget* parent)
 {
 }
 
+EscapableLineEdit::EscapableLineEdit(const QString& text, QWidget* parent)
+	: QLineEdit(text, parent)
+{
+}
+
 void EscapableLineEdit::keyPressEvent(QKeyEvent* event)
 {
-
 	if (event->key() == Qt::Key_Escape)
 		emit editingCanceled();
 	else

Editor/widgets/EscapableLineEdit.h

@@ -26,6 +26,7 @@ class EscapableLineEdit : public QLineEdit
 	Q_OBJECT
 public:
 	explicit EscapableLineEdit(QWidget* parent = 0);
+	explicit EscapableLineEdit(const QString& text, QWidget* parent = 0);
 
 signals:
 	void editingCanceled();

Editor/widgets/ResizingLineEdit.cpp

@@ -20,15 +20,15 @@
 #include "ResizingLineEdit.h"
 
 ResizingLineEdit::ResizingLineEdit(QWidget* parent)
-	: QLineEdit(parent)
+	: EscapableLineEdit(parent)
 {
 	connect(this, SIGNAL(textChanged(QString)), this, SLOT(readjustSize()));
 
 	readjustSize();
 }
 
-ResizingLineEdit::ResizingLineEdit(const QString& text, QWidget* parent)
+ResizingLineEdit::ResizingLineEdit(const QString& text, bool forceWidth, QWidget* parent)
-	: QLineEdit(text, parent)
+	: EscapableLineEdit(text, parent), forceWidth(forceWidth)
 {
 	connect(this, SIGNAL(textChanged(QString)), this, SLOT(readjustSize()));
 
@@ -50,5 +50,8 @@ QSize ResizingLineEdit::sizeHint() const
 
 void ResizingLineEdit::readjustSize()
 {
-	setFixedWidth(sizeHint().width());
+	if (forceWidth)
+		setFixedWidth(sizeHint().width());
+	else
+		setMinimumWidth(sizeHint().width());
 }

Editor/widgets/ResizingLineEdit.h

@@ -19,17 +19,20 @@
 
 #pragma once
 
-#include <QLineEdit>
+#include "EscapableLineEdit.h"
 
-class ResizingLineEdit : public QLineEdit
+class ResizingLineEdit : public EscapableLineEdit
 {
 	Q_OBJECT
 public:
 	explicit ResizingLineEdit(QWidget* parent = 0);
-	explicit ResizingLineEdit(const QString& text, QWidget* parent = 0);
+	explicit ResizingLineEdit(const QString& text, bool forceWidth, QWidget* parent = 0);
 
 	QSize sizeHint() const override;
 
 private slots:
 	void readjustSize();
+
+private:
+	bool forceWidth = false;
 };

EqualizerAPO.licenseheader

@@ -0,0 +1,19 @@
+extensions: .cpp .h
+/*
+    This file is part of Equalizer APO, a system-wide equalizer.
+    Copyright (C) %CurrentYear%  Jonas Thedering
+
+    This program is free software; you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation; either version 2 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License along
+    with this program; if not, write to the Free Software Foundation, Inc.,
+    51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+*/

EqualizerAPO.vcxproj

@@ -99,7 +99,7 @@
     <Link>
       <SubSystem>Windows</SubSystem>
       <GenerateDebugInformation>true</GenerateDebugInformation>
-      <AdditionalDependencies>muparserxd.lib;audioeng.lib;version.lib;wmcodecdspuuid.lib;AudioBaseProcessingObject.lib;audiomediatypecrt.lib;Shlwapi.lib;authz.lib;libsndfile-1.lib;libfftw3f-3.lib;%(AdditionalDependencies)</AdditionalDependencies>
+      <AdditionalDependencies>muparserxd.lib;audioeng.lib;version.lib;wmcodecdspuuid.lib;AudioBaseProcessingObject.lib;audiomediatypecrt.lib;Shlwapi.lib;authz.lib;crypt32.lib;dbghelp.lib;libsndfile-1.lib;libfftw3f-3.lib;%(AdditionalDependencies)</AdditionalDependencies>
       <ModuleDefinitionFile>EqualizerAPO.def</ModuleDefinitionFile>
     </Link>
     <Midl>
@@ -116,7 +116,7 @@
     <Link>
       <SubSystem>Windows</SubSystem>
       <GenerateDebugInformation>true</GenerateDebugInformation>
-      <AdditionalDependencies>muparserxd.lib;audioeng.lib;version.lib;wmcodecdspuuid.lib;AudioBaseProcessingObject.lib;audiomediatypecrt.lib;Shlwapi.lib;authz.lib;libsndfile-1.lib;libfftw3f-3.lib;%(AdditionalDependencies)</AdditionalDependencies>
+      <AdditionalDependencies>muparserxd.lib;audioeng.lib;version.lib;wmcodecdspuuid.lib;AudioBaseProcessingObject.lib;audiomediatypecrt.lib;Shlwapi.lib;authz.lib;crypt32.lib;dbghelp.lib;libsndfile-1.lib;libfftw3f-3.lib;%(AdditionalDependencies)</AdditionalDependencies>
       <ModuleDefinitionFile>EqualizerAPO.def</ModuleDefinitionFile>
     </Link>
     <Midl>
@@ -138,7 +138,7 @@
       <GenerateDebugInformation>true</GenerateDebugInformation>
       <EnableCOMDATFolding>true</EnableCOMDATFolding>
       <OptimizeReferences>true</OptimizeReferences>
-      <AdditionalDependencies>muparserx.lib;audioeng.lib;version.lib;wmcodecdspuuid.lib;AudioBaseProcessingObject.lib;audiomediatypecrt.lib;Shlwapi.lib;authz.lib;libsndfile-1.lib;libfftw3f-3.lib;%(AdditionalDependencies)</AdditionalDependencies>
+      <AdditionalDependencies>muparserx.lib;audioeng.lib;version.lib;wmcodecdspuuid.lib;AudioBaseProcessingObject.lib;audiomediatypecrt.lib;Shlwapi.lib;authz.lib;crypt32.lib;dbghelp.lib;libsndfile-1.lib;libfftw3f-3.lib;%(AdditionalDependencies)</AdditionalDependencies>
       <ModuleDefinitionFile>EqualizerAPO.def</ModuleDefinitionFile>
     </Link>
   </ItemDefinitionGroup>
@@ -157,7 +157,7 @@
       <GenerateDebugInformation>true</GenerateDebugInformation>
       <EnableCOMDATFolding>true</EnableCOMDATFolding>
       <OptimizeReferences>true</OptimizeReferences>
-      <AdditionalDependencies>muparserx.lib;audioeng.lib;version.lib;wmcodecdspuuid.lib;AudioBaseProcessingObject.lib;audiomediatypecrt.lib;Shlwapi.lib;authz.lib;libsndfile-1.lib;libfftw3f-3.lib;%(AdditionalDependencies)</AdditionalDependencies>
+      <AdditionalDependencies>muparserx.lib;audioeng.lib;version.lib;wmcodecdspuuid.lib;AudioBaseProcessingObject.lib;audiomediatypecrt.lib;Shlwapi.lib;authz.lib;crypt32.lib;dbghelp.lib;libsndfile-1.lib;libfftw3f-3.lib;%(AdditionalDependencies)</AdditionalDependencies>
       <ModuleDefinitionFile>EqualizerAPO.def</ModuleDefinitionFile>
     </Link>
   </ItemDefinitionGroup>
@@ -190,6 +190,10 @@
     <ClInclude Include="filters\PreampFilter.h" />
     <ClInclude Include="filters\PreampFilterFactory.h" />
     <ClInclude Include="filters\StageFilterFactory.h" />
+    <ClInclude Include="filters\VSTPluginFilter.h" />
+    <ClInclude Include="filters\VSTPluginFilterFactory.h" />
+    <ClInclude Include="helpers\AbstractLibrary.h" />
+    <ClInclude Include="helpers\aeffectx.h" />
     <ClInclude Include="helpers\ChannelHelper.h" />
     <ClInclude Include="helpers\GainIterator.h" />
     <ClInclude Include="helpers\LogHelper.h" />
@@ -199,6 +203,8 @@
     <ClInclude Include="helpers\ScopeGuard.h" />
     <ClInclude Include="helpers\StringHelper.h" />
     <ClInclude Include="helpers\UncaughtExceptions.h" />
+    <ClInclude Include="helpers\VSTPluginInstance.h" />
+    <ClInclude Include="helpers\VSTPluginLibrary.h" />
     <ClInclude Include="IFilter.h" />
     <ClInclude Include="IFilterFactory.h" />
     <ClInclude Include="libHybridConv-0.1.1\libHybridConv_eapo.h" />
@@ -240,12 +246,17 @@
     <ClCompile Include="filters\PreampFilter.cpp" />
     <ClCompile Include="filters\PreampFilterFactory.cpp" />
     <ClCompile Include="filters\StageFilterFactory.cpp" />
+    <ClCompile Include="filters\VSTPluginFilter.cpp" />
+    <ClCompile Include="filters\VSTPluginFilterFactory.cpp" />
+    <ClCompile Include="helpers\AbstractLibrary.cpp" />
     <ClCompile Include="helpers\ChannelHelper.cpp" />
     <ClCompile Include="helpers\GainIterator.cpp" />
     <ClCompile Include="helpers\LogHelper.cpp" />
     <ClCompile Include="helpers\MemoryHelper.cpp" />
     <ClCompile Include="helpers\RegistryHelper.cpp" />
     <ClCompile Include="helpers\StringHelper.cpp" />
+    <ClCompile Include="helpers\VSTPluginInstance.cpp" />
+    <ClCompile Include="helpers\VSTPluginLibrary.cpp" />
     <ClCompile Include="IFilter.cpp" />
     <ClCompile Include="libHybridConv-0.1.1\libHybridConv_eapo.cpp" />
     <ClCompile Include="parser\RegexFunctions.cpp" />
@@ -261,6 +272,7 @@
   </ItemGroup>
   <ItemGroup>
     <None Include="EqualizerAPO.def" />
+    <None Include="EqualizerAPO.licenseheader" />
   </ItemGroup>
   <ItemGroup>
     <ResourceCompile Include="EqualizerAPO.rc">

EqualizerAPO.vcxproj.filters

@@ -107,6 +107,21 @@
     <ClCompile Include="stdafx.cpp" />
     <ClCompile Include="AbstractAPOInfo.cpp" />
     <ClCompile Include="VoicemeeterAPOInfo.cpp" />
+    <ClCompile Include="helpers\AbstractLibrary.cpp">
+      <Filter>helpers</Filter>
+    </ClCompile>
+    <ClCompile Include="filters\VSTPluginFilter.cpp">
+      <Filter>filters</Filter>
+    </ClCompile>
+    <ClCompile Include="filters\VSTPluginFilterFactory.cpp">
+      <Filter>filters</Filter>
+    </ClCompile>
+    <ClCompile Include="helpers\VSTPluginLibrary.cpp">
+      <Filter>helpers</Filter>
+    </ClCompile>
+    <ClCompile Include="helpers\VSTPluginInstance.cpp">
+      <Filter>helpers</Filter>
+    </ClCompile>
   </ItemGroup>
   <ItemGroup>
     <ClInclude Include="ClassFactory.h" />
@@ -226,6 +241,24 @@
       <Filter>helpers</Filter>
     </ClInclude>
     <ClInclude Include="VoicemeeterAPOInfo.h" />
+    <ClInclude Include="helpers\AbstractLibrary.h">
+      <Filter>helpers</Filter>
+    </ClInclude>
+    <ClInclude Include="helpers\aeffectx.h">
+      <Filter>helpers</Filter>
+    </ClInclude>
+    <ClInclude Include="filters\VSTPluginFilter.h">
+      <Filter>filters</Filter>
+    </ClInclude>
+    <ClInclude Include="filters\VSTPluginFilterFactory.h">
+      <Filter>filters</Filter>
+    </ClInclude>
+    <ClInclude Include="helpers\VSTPluginLibrary.h">
+      <Filter>helpers</Filter>
+    </ClInclude>
+    <ClInclude Include="helpers\VSTPluginInstance.h">
+      <Filter>helpers</Filter>
+    </ClInclude>
   </ItemGroup>
   <ItemGroup>
     <ResourceCompile Include="EqualizerAPO.rc" />
@@ -233,6 +266,7 @@
   </ItemGroup>
   <ItemGroup>
     <None Include="EqualizerAPO.def" />
+    <None Include="EqualizerAPO.licenseheader" />
   </ItemGroup>
   <ItemGroup>
     <Filter Include="filters">

FilterEngine.cpp

@@ -53,6 +53,7 @@
 #include "filters/IncludeFilterFactory.h"
 #include "filters/ConvolutionFilterFactory.h"
 #include "filters/GraphicEQFilterFactory.h"
+#include "filters/VSTPluginFilterFactory.h"
 
 using namespace std;
 using namespace mup;
@@ -87,6 +88,7 @@ FilterEngine::FilterEngine()
 	factories.push_back(new CopyFilterFactory());
 	factories.push_back(new ConvolutionFilterFactory());
 	factories.push_back(new GraphicEQFilterFactory());
+	factories.push_back(new VSTPluginFilterFactory());
 }
 
 FilterEngine::~FilterEngine()

IFilter.h

@@ -32,7 +32,7 @@ public:
 
 	// request to get all channel names instead of selection
 	virtual bool getAllChannels() {return false;}
-	// request that output and input do not point to the same memory locations
+	// return false to request that output and input do not point to the same memory locations
 	virtual bool getInPlace() {return true;}
 	// request that the channelNames returned by initialize become the new selection
 	virtual bool getSelectChannels() {return false;}

Setup/Setup.nsi

@@ -145,6 +145,7 @@ Section "Install" SecInstall
   File "Configuration reference (online).url"
   
   CreateDirectory "$INSTDIR\config"
+  CreateDirectory "$INSTDIR\plugins"
   
   SetOverwrite off
   File /oname=config\config.txt "config\config.txt"

VoicemeeterClient/VoicemeeterClient.cpp

@@ -1,3 +1,22 @@
+/*
+    This file is part of Equalizer APO, a system-wide equalizer.
+    Copyright (C) 2017  Jonas Thedering
+
+    This program is free software; you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation; either version 2 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License along
+    with this program; if not, write to the Free Software Foundation, Inc.,
+    51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+*/
+
 #include "stdafx.h"
 #include <string>
 #define WIN32_LEAN_AND_MEAN

VoicemeeterClient/VoicemeeterClient.h

@@ -1,3 +1,22 @@
+/*
+    This file is part of Equalizer APO, a system-wide equalizer.
+    Copyright (C) 2017  Jonas Thedering
+
+    This program is free software; you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation; either version 2 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License along
+    with this program; if not, write to the Free Software Foundation, Inc.,
+    51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+*/
+
 #pragma once
 
 #include <string>

VoicemeeterClient/VoicemeeterClient.vcxproj

@@ -96,7 +96,7 @@
     <Link>
       <SubSystem>Windows</SubSystem>
       <GenerateDebugInformation>true</GenerateDebugInformation>
-      <AdditionalDependencies>muparserxd.lib;version.lib;Shlwapi.lib;authz.lib;libsndfile-1.lib;libfftw3f-3.lib;%(AdditionalDependencies)</AdditionalDependencies>
+      <AdditionalDependencies>muparserxd.lib;version.lib;Shlwapi.lib;authz.lib;crypt32.lib;dbghelp.lib;libsndfile-1.lib;libfftw3f-3.lib;%(AdditionalDependencies)</AdditionalDependencies>
     </Link>
   </ItemDefinitionGroup>
   <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">
@@ -109,7 +109,7 @@
     <Link>
       <SubSystem>Windows</SubSystem>
       <GenerateDebugInformation>true</GenerateDebugInformation>
-      <AdditionalDependencies>muparserxd.lib;version.lib;Shlwapi.lib;authz.lib;libsndfile-1.lib;libfftw3f-3.lib;%(AdditionalDependencies)</AdditionalDependencies>
+      <AdditionalDependencies>muparserxd.lib;version.lib;Shlwapi.lib;authz.lib;crypt32.lib;dbghelp.lib;libsndfile-1.lib;libfftw3f-3.lib;%(AdditionalDependencies)</AdditionalDependencies>
     </Link>
   </ItemDefinitionGroup>
   <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">
@@ -127,7 +127,7 @@
       <GenerateDebugInformation>true</GenerateDebugInformation>
       <EnableCOMDATFolding>true</EnableCOMDATFolding>
       <OptimizeReferences>true</OptimizeReferences>
-      <AdditionalDependencies>muparserx.lib;version.lib;Shlwapi.lib;authz.lib;libsndfile-1.lib;libfftw3f-3.lib;%(AdditionalDependencies)</AdditionalDependencies>
+      <AdditionalDependencies>muparserx.lib;version.lib;Shlwapi.lib;authz.lib;crypt32.lib;dbghelp.lib;libsndfile-1.lib;libfftw3f-3.lib;%(AdditionalDependencies)</AdditionalDependencies>
     </Link>
   </ItemDefinitionGroup>
   <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'">
@@ -145,7 +145,7 @@
       <GenerateDebugInformation>true</GenerateDebugInformation>
       <EnableCOMDATFolding>true</EnableCOMDATFolding>
       <OptimizeReferences>true</OptimizeReferences>
-      <AdditionalDependencies>muparserx.lib;version.lib;Shlwapi.lib;authz.lib;libsndfile-1.lib;libfftw3f-3.lib;%(AdditionalDependencies)</AdditionalDependencies>
+      <AdditionalDependencies>muparserx.lib;version.lib;Shlwapi.lib;authz.lib;crypt32.lib;dbghelp.lib;libsndfile-1.lib;libfftw3f-3.lib;%(AdditionalDependencies)</AdditionalDependencies>
     </Link>
   </ItemDefinitionGroup>
   <ItemGroup>
@@ -175,6 +175,9 @@
     <ClInclude Include="..\filters\PreampFilter.h" />
     <ClInclude Include="..\filters\PreampFilterFactory.h" />
     <ClInclude Include="..\filters\StageFilterFactory.h" />
+    <ClInclude Include="..\filters\VSTPluginFilter.h" />
+    <ClInclude Include="..\filters\VSTPluginFilterFactory.h" />
+    <ClInclude Include="..\helpers\AbstractLibrary.h" />
     <ClInclude Include="..\helpers\ChannelHelper.h" />
     <ClInclude Include="..\helpers\GainIterator.h" />
     <ClInclude Include="..\helpers\LogHelper.h" />
@@ -183,6 +186,8 @@
     <ClInclude Include="..\helpers\ScopeGuard.h" />
     <ClInclude Include="..\helpers\StringHelper.h" />
     <ClInclude Include="..\helpers\UncaughtExceptions.h" />
+    <ClInclude Include="..\helpers\VSTPluginInstance.h" />
+    <ClInclude Include="..\helpers\VSTPluginLibrary.h" />
     <ClInclude Include="..\IFilter.h" />
     <ClInclude Include="..\IFilterFactory.h" />
     <ClInclude Include="..\libHybridConv-0.1.1\libHybridConv_eapo.h" />
@@ -220,12 +225,17 @@
     <ClCompile Include="..\filters\PreampFilter.cpp" />
     <ClCompile Include="..\filters\PreampFilterFactory.cpp" />
     <ClCompile Include="..\filters\StageFilterFactory.cpp" />
+    <ClCompile Include="..\filters\VSTPluginFilter.cpp" />
+    <ClCompile Include="..\filters\VSTPluginFilterFactory.cpp" />
+    <ClCompile Include="..\helpers\AbstractLibrary.cpp" />
     <ClCompile Include="..\helpers\ChannelHelper.cpp" />
     <ClCompile Include="..\helpers\GainIterator.cpp" />
     <ClCompile Include="..\helpers\LogHelper.cpp" />
     <ClCompile Include="..\helpers\MemoryHelper.cpp" />
     <ClCompile Include="..\helpers\RegistryHelper.cpp" />
     <ClCompile Include="..\helpers\StringHelper.cpp" />
+    <ClCompile Include="..\helpers\VSTPluginInstance.cpp" />
+    <ClCompile Include="..\helpers\VSTPluginLibrary.cpp" />
     <ClCompile Include="..\IFilter.cpp" />
     <ClCompile Include="..\libHybridConv-0.1.1\libHybridConv_eapo.cpp" />
     <ClCompile Include="..\parser\RegexFunctions.cpp" />
@@ -243,6 +253,9 @@
   <ItemGroup>
     <ResourceCompile Include="VoicemeeterClient.rc" />
   </ItemGroup>
+  <ItemGroup>
+    <None Include="..\EqualizerAPO.licenseheader" />
+  </ItemGroup>
   <Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />
   <ImportGroup Label="ExtensionTargets">
   </ImportGroup>

VoicemeeterClient/VoicemeeterClient.vcxproj.filters

@@ -127,6 +127,21 @@
     <ClInclude Include="..\helpers\UncaughtExceptions.h">
       <Filter>helpers</Filter>
     </ClInclude>
+    <ClInclude Include="..\helpers\AbstractLibrary.h">
+      <Filter>helpers</Filter>
+    </ClInclude>
+    <ClInclude Include="..\filters\VSTPluginFilter.h">
+      <Filter>filters</Filter>
+    </ClInclude>
+    <ClInclude Include="..\filters\VSTPluginFilterFactory.h">
+      <Filter>filters</Filter>
+    </ClInclude>
+    <ClInclude Include="..\helpers\VSTPluginLibrary.h">
+      <Filter>helpers</Filter>
+    </ClInclude>
+    <ClInclude Include="..\helpers\VSTPluginInstance.h">
+      <Filter>helpers</Filter>
+    </ClInclude>
   </ItemGroup>
   <ItemGroup>
     <ClCompile Include="..\helpers\RegistryHelper.cpp">
@@ -232,8 +247,26 @@
     </ClCompile>
     <ClCompile Include="..\VoicemeeterAPOInfo.cpp" />
     <ClCompile Include="..\AbstractAPOInfo.cpp" />
+    <ClCompile Include="..\helpers\AbstractLibrary.cpp">
+      <Filter>helpers</Filter>
+    </ClCompile>
+    <ClCompile Include="..\filters\VSTPluginFilter.cpp">
+      <Filter>filters</Filter>
+    </ClCompile>
+    <ClCompile Include="..\filters\VSTPluginFilterFactory.cpp">
+      <Filter>filters</Filter>
+    </ClCompile>
+    <ClCompile Include="..\helpers\VSTPluginLibrary.cpp">
+      <Filter>helpers</Filter>
+    </ClCompile>
+    <ClCompile Include="..\helpers\VSTPluginInstance.cpp">
+      <Filter>helpers</Filter>
+    </ClCompile>
   </ItemGroup>
   <ItemGroup>
     <ResourceCompile Include="VoicemeeterClient.rc" />
   </ItemGroup>
+  <ItemGroup>
+    <None Include="..\EqualizerAPO.licenseheader" />
+  </ItemGroup>
 </Project>

filters/VSTPluginFilter.cpp

@@ -0,0 +1,234 @@
+/*
+    This file is part of Equalizer APO, a system-wide equalizer.
+    Copyright (C) 2017  Jonas Thedering
+
+    This program is free software; you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation; either version 2 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License along
+    with this program; if not, write to the Free Software Foundation, Inc.,
+    51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+*/
+
+#include "stdafx.h"
+#include "helpers/StringHelper.h"
+#include "helpers/LogHelper.h"
+#include "VSTPluginFilter.h"
+
+using namespace std;
+
+VSTPluginFilter::VSTPluginFilter(std::shared_ptr<VSTPluginLibrary> library, std::wstring chunkData, std::unordered_map<std::wstring, float> paramMap)
+	: library(library), chunkData(chunkData), paramMap(paramMap)
+{
+	libPath = library->getLibPath();
+}
+
+VSTPluginFilter::~VSTPluginFilter()
+{
+	cleanup();
+}
+
+std::vector<std::wstring> VSTPluginFilter::initialize(float sampleRate, unsigned maxFrameCount, std::vector<std::wstring> channelNames)
+{
+	cleanup();
+
+	channelCount = channelNames.size();
+	if (channelCount == 0)
+		return channelNames;
+
+	skipProcessing = false;
+
+	void* mem = MemoryHelper::alloc(sizeof(VSTPluginInstance));
+	VSTPluginInstance* firstEffect = new(mem) VSTPluginInstance(library, 2);
+	if (!firstEffect->initialize())
+	{
+		LogF(L"The VST plugin %s crashed during initialization.", libPath.c_str());
+		skipProcessing = true;
+	}
+
+	effectChannelCount = max(firstEffect->numInputs(), firstEffect->numOutputs());
+	// round up
+	effectCount = (channelCount + (effectChannelCount - 1)) / effectChannelCount;
+	effects = (VSTPluginInstance**)MemoryHelper::alloc(effectCount * sizeof(VSTPluginInstance*));
+	effects[0] = firstEffect;
+	for (unsigned i = 1; i < effectCount; i++)
+	{
+		mem = MemoryHelper::alloc(sizeof(VSTPluginInstance));
+		effects[i] = new(mem) VSTPluginInstance(library, 2);
+		if (!effects[i]->initialize() && !skipProcessing)
+		{
+			LogF(L"The VST plugin %s crashed during initialization.", libPath.c_str());
+			skipProcessing = true;
+		}
+	}
+
+	prepareForProcessing(sampleRate, maxFrameCount);
+
+	// 2 times for input and output
+	emptyChannelCount = 2 * (effectCount * effectChannelCount - channelCount);
+	emptyChannels = (float**)MemoryHelper::alloc(emptyChannelCount * sizeof(float*));
+	for (unsigned i = 0; i < emptyChannelCount; i++)
+	{
+		emptyChannels[i] = (float*)MemoryHelper::alloc(maxFrameCount * sizeof(float));
+		memset(emptyChannels[i], 0, maxFrameCount * sizeof(float));
+	}
+
+	inputArray = (float**)MemoryHelper::alloc(firstEffect->numInputs() * sizeof(float*));
+	outputArray = (float**)MemoryHelper::alloc(firstEffect->numOutputs() * sizeof(float*));
+
+	return channelNames;
+}
+
+void VSTPluginFilter::prepareForProcessing(float sampleRate, unsigned maxFrameCount)
+{
+	__try
+	{
+		for (unsigned i = 0; i < effectCount; i++)
+		{
+			VSTPluginInstance* effect = effects[i];
+
+			if (i == effectCount - 1 && (channelCount % effectChannelCount) != 0)
+				effect->setUsedChannelCount(channelCount % effectChannelCount);
+			else
+				effect->setUsedChannelCount(effectChannelCount);
+			effect->prepareForProcessing(sampleRate, maxFrameCount);
+			effect->writeToEffect(chunkData, paramMap);
+			effect->startProcessing();
+		}
+	}
+	__except (EXCEPTION_EXECUTE_HANDLER)
+	{
+		LogF(L"The VST plugin %s crashed while preparing for processing.", libPath.c_str());
+		skipProcessing = true;
+	}
+}
+
+#pragma AVRT_CODE_BEGIN
+void VSTPluginFilter::process(float** output, float** input, unsigned frameCount)
+{
+	if (skipProcessing)
+	{
+		for (unsigned i = 0; i < channelCount; i++)
+			memcpy(output[i], input[i], frameCount * sizeof(float));
+		return;
+	}
+
+	__try
+	{
+		unsigned channelOffset = 0;
+		unsigned emptyChannelIndex = 0;
+		for (unsigned i = 0; i < effectCount; i++)
+		{
+			VSTPluginInstance* effect = effects[i];
+			for (int j = 0; j < effect->numInputs(); j++)
+			{
+				if (channelOffset + j < channelCount)
+					inputArray[j] = input[channelOffset + j];
+				else
+					inputArray[j] = emptyChannels[emptyChannelIndex++];
+			}
+
+			for (int j = 0; j < effect->numOutputs(); j++)
+			{
+				if (channelOffset + j < channelCount)
+					outputArray[j] = output[channelOffset + j];
+				else
+					outputArray[j] = emptyChannels[emptyChannelIndex++];
+			}
+
+			if (effect->canReplacing())
+			{
+				effect->processReplacing(inputArray, outputArray, frameCount);
+			}
+			else
+			{
+				for (int j = 0; j < effect->numOutputs(); j++)
+					memset(outputArray[j], 0, frameCount * sizeof(float));
+				effect->process(inputArray, outputArray, frameCount);
+			}
+
+			if (effect->numOutputs() < effect->numInputs())
+			{
+				for (int j = effect->numOutputs(); j < effect->numInputs(); j++)
+				{
+					if (channelOffset + j < channelCount)
+						memset(output[channelOffset + j], 0, frameCount * sizeof(float));
+				}
+			}
+
+			channelOffset += effectChannelCount;
+		}
+	}
+	__except (EXCEPTION_EXECUTE_HANDLER)
+	{
+		if (reportCrash)
+		{
+			LogF(L"The VST plugin %s crashed during audio processing.", libPath.c_str());
+			reportCrash = false;
+		}
+
+		for (unsigned i = 0; i < channelCount; i++)
+			memcpy(output[i], input[i], frameCount * sizeof(float));
+	}
+}
+#pragma AVRT_CODE_END
+
+std::shared_ptr<VSTPluginLibrary> VSTPluginFilter::getLibrary() const
+{
+	return library;
+}
+
+std::wstring VSTPluginFilter::getChunkData() const
+{
+	return chunkData;
+}
+
+std::unordered_map<std::wstring, float> VSTPluginFilter::getParamMap() const
+{
+	return paramMap;
+}
+
+void VSTPluginFilter::cleanup()
+{
+	if (effects != NULL)
+	{
+		for (unsigned i = 0; i < effectCount; i++)
+		{
+			VSTPluginInstance* effect = effects[i];
+			effect->stopProcessing();
+			effect->~VSTPluginInstance();
+			MemoryHelper::free(effect);
+		}
+		MemoryHelper::free(effects);
+		effects = NULL;
+	}
+	effectCount = 0;
+
+	if (emptyChannels != NULL)
+	{
+		for (unsigned i = 0; i < emptyChannelCount; i++)
+			MemoryHelper::free(emptyChannels[i]);
+		MemoryHelper::free(emptyChannels);
+		emptyChannels = NULL;
+	}
+	emptyChannelCount = 0;
+
+	if (inputArray != NULL)
+	{
+		MemoryHelper::free(inputArray);
+		inputArray = NULL;
+	}
+
+	if (outputArray != NULL)
+	{
+		MemoryHelper::free(outputArray);
+		outputArray = NULL;
+	}
+}

filters/VSTPluginFilter.h

@@ -0,0 +1,59 @@
+/*
+    This file is part of Equalizer APO, a system-wide equalizer.
+    Copyright (C) 2017  Jonas Thedering
+
+    This program is free software; you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation; either version 2 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License along
+    with this program; if not, write to the Free Software Foundation, Inc.,
+    51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+*/
+
+#pragma once
+
+#include "IFilter.h"
+#include "helpers/VSTPluginLibrary.h"
+
+#pragma AVRT_VTABLES_BEGIN
+class VSTPluginFilter : public IFilter
+{
+public:
+	VSTPluginFilter(std::shared_ptr<VSTPluginLibrary> library, std::wstring chunkData, std::unordered_map<std::wstring, float> paramMap);
+	~VSTPluginFilter();
+
+	bool getInPlace() override {return false;}
+	std::vector<std::wstring> initialize(float sampleRate, unsigned maxFrameCount, std::vector<std::wstring> channelNames) override;
+	void prepareForProcessing(float sampleRate, unsigned maxFrameCount);
+	void process(float** output, float** input, unsigned frameCount) override;
+
+	std::shared_ptr<VSTPluginLibrary> getLibrary() const;
+	std::wstring getChunkData() const;
+	std::unordered_map<std::wstring, float> getParamMap() const;
+
+private:
+	void cleanup();
+
+	std::shared_ptr<VSTPluginLibrary> library;
+	std::wstring libPath;
+	std::wstring chunkData;
+	std::unordered_map<std::wstring, float> paramMap;
+	size_t channelCount;
+	unsigned effectChannelCount;
+	size_t effectCount = 0;
+	VSTPluginInstance** effects = NULL;
+	size_t emptyChannelCount = 0;
+	float** emptyChannels = NULL;
+	float** inputArray = NULL;
+	float** outputArray = NULL;
+	bool skipProcessing = false;
+	bool reportCrash = true;
+};
+#pragma AVRT_VTABLES_END

filters/VSTPluginFilterFactory.cpp

@@ -0,0 +1,116 @@
+/*
+    This file is part of Equalizer APO, a system-wide equalizer.
+    Copyright (C) 2017  Jonas Thedering
+
+    This program is free software; you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation; either version 2 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License along
+    with this program; if not, write to the Free Software Foundation, Inc.,
+    51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+*/
+
+#include "stdafx.h"
+#include "helpers/StringHelper.h"
+#include "helpers/VSTPluginLibrary.h"
+#include "helpers/LogHelper.h"
+#include "VSTPluginFilter.h"
+#include "VSTPluginFilterFactory.h"
+
+using namespace std;
+
+vector<IFilter*> VSTPluginFilterFactory::createFilter(const wstring& configPath, wstring& command, wstring& parameters)
+{
+	VSTPluginFilter* filter = NULL;
+
+	if (command == L"VSTPlugin")
+	{
+		shared_ptr<VSTPluginLibrary> library;
+		wstring chunkData;
+		unordered_map<wstring, float> paramMap;
+		vector<wstring> parts = StringHelper::splitQuoted(parameters, ' ');
+		for (unsigned i = 0; i + 1 < parts.size(); i += 2)
+		{
+			wstring key = parts[i];
+			wstring value = parts[i + 1];
+
+			if (key == L"Library")
+			{
+				wstring libPath;
+				if (PathIsRelativeW(value.c_str()))
+				{
+					wchar_t filePath[MAX_PATH];
+					wstring pluginPath = VSTPluginLibrary::getDefaultPluginPath();
+					pluginPath._Copy_s(filePath, sizeof(filePath) / sizeof(wchar_t), MAX_PATH);
+					if (pluginPath.size() < MAX_PATH)
+						filePath[pluginPath.size()] = L'\0';
+					else
+						filePath[MAX_PATH - 1] = L'\0';
+					PathAppendW(filePath, value.c_str());
+					libPath = filePath;
+				}
+				else
+					libPath = value;
+
+				library = VSTPluginLibrary::getInstance(libPath);
+			}
+			else if (key == L"ChunkData")
+			{
+				chunkData = value;
+			}
+			else
+			{
+				float f = wcstof(value.c_str(), NULL);
+				paramMap[key] = f;
+			}
+		}
+
+		if (library != NULL)
+		{
+			bool create = true;
+			if (configPath != L"")
+			{
+				create = false;
+				TraceF(L"Adding VST plugin %s", library->getLibPath().c_str());
+				int res = library->initialize();
+				if (res < 0)
+				{
+#ifdef _WIN64
+					int bitDepth = 64;
+#else
+					int bitDepth = 32;
+#endif
+					if (res == AbstractLibrary::FILE_NOT_FOUND)
+						LogF(L"File %s not found", library->getLibPath());
+					else if (res == AbstractLibrary::LOADING_FAILED)
+						LogF(L"Library %s could not be loaded", library->getLibPath());
+					else if (res == AbstractLibrary::FUNCTIONS_MISSING)
+						LogF(L"Library %s does not contain needed functions", library->getLibPath());
+					else if (res == AbstractLibrary::WRONG_ARCHITECTURE)
+						LogF(L"Library %s has wrong architecture, must be %d-bit", library->getLibPath(), bitDepth);
+				}
+				else
+				{
+					create = true;
+				}
+			}
+
+			if (create)
+			{
+				void* mem = MemoryHelper::alloc(sizeof(VSTPluginFilter));
+				filter = new(mem) VSTPluginFilter(library, chunkData, paramMap);
+			}
+		}
+	}
+
+	if (filter == NULL)
+		return vector<IFilter*>(0);
+	return vector<IFilter*>(1, filter);
+}

filters/VSTPluginFilterFactory.h

@@ -0,0 +1,31 @@
+/*
+    This file is part of Equalizer APO, a system-wide equalizer.
+    Copyright (C) 2017  Jonas Thedering
+
+    This program is free software; you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation; either version 2 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License along
+    with this program; if not, write to the Free Software Foundation, Inc.,
+    51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+*/
+
+#pragma once
+
+#include <string>
+
+#include "IFilterFactory.h"
+#include "IFilter.h"
+
+class VSTPluginFilterFactory : public IFilterFactory
+{
+public:
+	std::vector<IFilter*> createFilter(const std::wstring& configPath, std::wstring& command, std::wstring& parameters) override;
+};

helpers/AbstractLibrary.cpp

@@ -0,0 +1,113 @@
+/*
+    This file is part of Equalizer APO, a system-wide equalizer.
+    Copyright (C) 2017  Jonas Thedering
+
+    This program is free software; you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation; either version 2 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License along
+    with this program; if not, write to the Free Software Foundation, Inc.,
+    51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+*/
+
+#include "stdafx.h"
+#include <Imagehlp.h>
+#include "AbstractLibrary.h"
+#include "helpers/LogHelper.h"
+
+using namespace std;
+
+AbstractLibrary::~AbstractLibrary()
+{
+	if (module != NULL)
+	{
+		wchar_t path[MAX_PATH];
+		GetModuleFileNameW(module, path, MAX_PATH);
+
+		FreeLibrary(module);
+		module = NULL;
+
+		TraceF(L"Unloaded library %s", path);
+	}
+}
+
+int AbstractLibrary::initialize()
+{
+	if (module == NULL)
+	{
+		wstring libPath = getLibPath();
+		if (GetFileAttributesW(libPath.c_str()) == INVALID_FILE_ATTRIBUTES)
+			return FILE_NOT_FOUND;
+		module = LoadLibraryW(libPath.c_str());
+		if (module == NULL)
+		{
+			unsigned short arch = getFileArchitecture(libPath);
+#ifdef _WIN64
+			int bitDepth = 64;
+#else
+			int bitDepth = 32;
+#endif
+			if (arch != 0 && (bitDepth == 64 && arch != IMAGE_FILE_MACHINE_AMD64
+				|| bitDepth == 32 && arch != IMAGE_FILE_MACHINE_I386))
+				return WRONG_ARCHITECTURE;
+
+			return LOADING_FAILED;
+		}
+
+		if (!loadFunctions())
+		{
+			FreeLibrary(module);
+			module = NULL;
+			return FUNCTIONS_MISSING;
+		}
+
+		int res = customInitialize();
+		if (res < 0)
+			return res;
+
+		TraceF(L"Loaded library %s", libPath.c_str());
+
+		return 1;
+	}
+
+	return 0;
+}
+
+int AbstractLibrary::customInitialize()
+{
+	// overwrite if needed
+	return 0;
+}
+
+unsigned short AbstractLibrary::getFileArchitecture(const wstring& filePath)
+{
+	unsigned short result = 0;
+
+	HANDLE hFile = CreateFileW(filePath.c_str(), GENERIC_READ, FILE_SHARE_READ, NULL, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, NULL);
+	if (hFile != INVALID_HANDLE_VALUE)
+	{
+		HANDLE hMap = CreateFileMappingW(hFile, NULL, PAGE_READONLY, 0, 0, NULL);
+		if (hMap != NULL)
+		{
+			void* mapAddr = MapViewOfFileEx(hMap, FILE_MAP_READ, 0, 0, 0, NULL);
+			if (mapAddr != NULL)
+			{
+				PIMAGE_NT_HEADERS ntHeaders = ImageNtHeader(mapAddr);
+				if (ntHeaders != NULL)
+					result = ntHeaders->FileHeader.Machine;
+				UnmapViewOfFile(mapAddr);
+			}
+			CloseHandle(hMap);
+		}
+		CloseHandle(hFile);
+	}
+
+	return result;
+}

helpers/AbstractLibrary.h

@@ -0,0 +1,45 @@
+/*
+    This file is part of Equalizer APO, a system-wide equalizer.
+    Copyright (C) 2017  Jonas Thedering
+
+    This program is free software; you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation; either version 2 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License along
+    with this program; if not, write to the Free Software Foundation, Inc.,
+    51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+*/
+
+#pragma once
+
+#include <string>
+
+class AbstractLibrary
+{
+public:
+	static const int FILE_NOT_FOUND = -1;
+	static const int LOADING_FAILED = -2;
+	static const int FUNCTIONS_MISSING = -3;
+	static const int WRONG_ARCHITECTURE = -4;
+
+	virtual ~AbstractLibrary();
+
+	int initialize();
+	virtual std::wstring getLibPath() = 0;
+
+protected:
+	virtual bool loadFunctions() = 0;
+	virtual int customInitialize();
+
+	HMODULE module = NULL;
+
+private:
+	unsigned short getFileArchitecture(const std::wstring& filePath);
+};

helpers/GainIterator.cpp

@@ -85,7 +85,11 @@ double GainIterator::gainAt(double freq)
 	else
 	{
 		double t = (log(freq) - logLeft) / logRightMinusLeft;
-		dbGain = nodeLeft->dbGain + t * (nodeRight->dbGain - nodeLeft->dbGain);
+		// to support dbGain == -INF for both nodes
+		if (nodeLeft->dbGain == nodeRight->dbGain)
+			dbGain = nodeLeft->dbGain;
+		else
+			dbGain = nodeLeft->dbGain + t * (nodeRight->dbGain - nodeLeft->dbGain);
 	}
 
 	return dbGain;

helpers/LogHelper.cpp

@@ -109,6 +109,8 @@ void LogHelper::log(const char* file, int line, const void* caller, bool trace,
 
 	if (presetFP == NULL)
 		fclose(fp);
+	else
+		fflush(fp);
 }
 
 void LogHelper::reset()

helpers/StringHelper.cpp

@@ -163,3 +163,37 @@ wstring StringHelper::getSystemErrorString(long status)
 	else
 		return L"";
 }
+
+vector<wstring> StringHelper::splitQuoted(const wstring& s, wchar_t splitChar, wchar_t quoteChar)
+{
+	vector<wstring> result;
+	bool inQuotes = false;
+	wstring current;
+	for (size_t i = 0; i < s.length(); i++)
+	{
+		wchar_t c = s[i];
+		if (c == splitChar && !inQuotes)
+		{
+			if (current != L"")
+			{
+				result.push_back(current);
+				current = L"";
+			}
+		}
+		else if (c == quoteChar)
+		{
+			inQuotes = !inQuotes;
+			if (inQuotes && i > 0 && s[i - 1] == quoteChar)
+				current += quoteChar;
+		}
+		else
+		{
+			current += c;
+		}
+	}
+
+	if (current != L"")
+		result.push_back(current);
+
+	return result;
+}

helpers/StringHelper.h

@@ -35,4 +35,5 @@ public:
 	static std::vector<std::wstring> split(const std::wstring& s, wchar_t splitChar, bool skipEmpty = true);
 	static std::wstring join(const std::vector<std::wstring>& strings, const std::wstring& separator);
 	static std::wstring getSystemErrorString(long status);
+	static std::vector<std::wstring> splitQuoted(const std::wstring& s, wchar_t splitChar, wchar_t quoteChar = '"');
 };

helpers/VSTPluginInstance.cpp

@@ -0,0 +1,397 @@
+/*
+    This file is part of Equalizer APO, a system-wide equalizer.
+    Copyright (C) 2017  Jonas Thedering
+
+    This program is free software; you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation; either version 2 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License along
+    with this program; if not, write to the Free Software Foundation, Inc.,
+    51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+*/
+
+#include "stdafx.h"
+#include <wincrypt.h>
+#include "StringHelper.h"
+#include "version.h"
+#include "VSTPluginLibrary.h"
+#include "VSTPluginInstance.h"
+
+using namespace std;
+
+#define equalizerApoVSTID CCONST('E', 'A', 'P', 'O');
+
+static intptr_t callback(AEffect* effect, int32_t opcode, int32_t index, intptr_t value, void* ptr, float opt)
+{
+	VSTPluginInstance* instance = effect != NULL ? (VSTPluginInstance*)effect->user : NULL;
+#ifdef _DEBUG
+	printf("vst: %p opcode: %d index: %d value: %d ptr: %p opt: %f user: %p\n",
+		effect, opcode, index, value, ptr, opt, effect != NULL ? effect->user : NULL);
+	fflush(stdout);
+#endif
+
+	switch (opcode)
+	{
+	case audioMasterVersion:
+		return 2400;
+
+	case audioMasterCurrentId:
+		return equalizerApoVSTID;
+
+	case audioMasterGetProductString:
+		strcpy_s((char*) ptr, 64, "Equalizer APO");
+		return 1;
+
+	case audioMasterGetVendorVersion:
+		return (intptr_t) (MAJOR << 24 | MINOR << 16 | REVISION << 8 | 0);
+
+	case audioMasterPinConnected:
+		if (instance != NULL)
+			return index < instance->getUsedChannelCount() ? 0 : 1;
+		else
+			return 0;
+
+	case audioMasterNeedIdle:
+		return effect->dispatcher(effect, effIdle, 0, 0, NULL, 0.0f);
+
+	case audioMasterUpdateDisplay:
+		return effect->dispatcher(effect, effEditIdle, 0, 0, NULL, 0.0f);
+
+	case audioMasterGetTime:
+		return 0;
+
+	case audioMasterGetSampleRate:
+		if (instance != NULL)
+			return (intptr_t)instance->getSampleRate();
+		return 0;
+
+	case audioMasterGetCurrentProcessLevel:
+		if (instance != NULL)
+			return instance->getProcessLevel();
+		return 0;
+
+	case audioMasterGetLanguage:
+		if (instance != NULL)
+			return instance->getLanguage();
+		return 0;
+
+	case audioMasterWillReplaceOrAccumulate:
+		return 1;
+
+	case audioMasterSizeWindow:
+		if (instance != NULL)
+			instance->onSizeWindow((int)index, (int)value);
+		return 1;
+
+	case audioMasterCanDo:
+		{
+			char* s = (char*)ptr;
+#ifdef _DEBUG
+			printf("VST canDo: %s\n", s);
+			fflush(stdout);
+#endif
+			if (strcmp(s, "startStopProcess") == 0 ||
+				strcmp(s, "sizeWindow") == 0)
+				return 1;
+		}
+		return 0;
+
+	case audioMasterAutomate:
+		if (instance != NULL)
+			instance->onAutomate();
+		return 0;
+
+	case audioMasterBeginEdit:
+	case audioMasterEndEdit:
+	case audioMasterIdle:
+	case audioMasterWantMidi:
+		return 0;
+	}
+
+	return 0;
+}
+
+VSTPluginInstance::VSTPluginInstance(const std::shared_ptr<VSTPluginLibrary>& library, int processLevel)
+	: library(library), processLevel(processLevel)
+{
+}
+
+VSTPluginInstance::~VSTPluginInstance()
+{
+	if (effect != NULL)
+	{
+		effect->dispatcher(effect, effClose, 0, 0, NULL, 0.0f);
+		effect = NULL;
+	}
+}
+
+bool VSTPluginInstance::initialize()
+{
+	bool result = true;
+
+	__try
+	{
+		effect = library->VSTPluginMain(callback);
+		effect->user = this;
+		if (effect->magic == kEffectMagic)
+		{
+			effect->dispatcher(effect, effOpen, 0, 0, NULL, 0.0f);
+
+			usedChannelCount = max(numInputs(), numOutputs());
+		}
+		else
+		{
+			effect = NULL;
+		}
+	}
+	__except (EXCEPTION_EXECUTE_HANDLER)
+	{
+		result = false;
+	}
+
+	return result;
+}
+
+int VSTPluginInstance::numInputs() const
+{
+	if (effect == NULL)
+		return 0;
+
+	return effect->numInputs;
+}
+
+int VSTPluginInstance::numOutputs() const
+{
+	if (effect == NULL)
+		return 0;
+
+	return effect->numOutputs;
+}
+
+bool VSTPluginInstance::canReplacing() const
+{
+	if (effect == NULL)
+		return true;
+
+	return (effect->flags & effFlagsCanReplacing) != 0;
+}
+
+int VSTPluginInstance::uniqueID() const
+{
+	if (effect == NULL)
+		return 0;
+
+	return effect->uniqueID;
+}
+
+std::wstring VSTPluginInstance::getName() const
+{
+	if (effect == NULL)
+		return L"";
+
+	char buf[256];
+	memset(buf, 0, sizeof(buf));
+	effect->dispatcher(effect, effGetEffectName, 0, 0, buf, 0.0f);
+
+	return StringHelper::toWString(buf, CP_UTF8);
+}
+
+int VSTPluginInstance::getUsedChannelCount() const
+{
+	return usedChannelCount;
+}
+
+void VSTPluginInstance::setUsedChannelCount(int count)
+{
+	usedChannelCount = count;
+}
+
+float VSTPluginInstance::getSampleRate() const
+{
+	return sampleRate;
+}
+
+int VSTPluginInstance::getProcessLevel() const
+{
+	return processLevel;
+}
+
+void VSTPluginInstance::setProcessLevel(int value)
+{
+	processLevel = value;
+}
+
+int VSTPluginInstance::getLanguage() const
+{
+	return language;
+}
+
+void VSTPluginInstance::setLanguage(int value)
+{
+	language = value;
+}
+
+void VSTPluginInstance::prepareForProcessing(float sampleRate, int blockSize)
+{
+	if (effect == NULL)
+		return;
+
+	this->sampleRate = sampleRate;
+	effect->dispatcher(effect, effSetSampleRate, 0, 0, NULL, sampleRate);
+	effect->dispatcher(effect, effSetBlockSize, 0, blockSize, NULL, 0.0f);
+}
+
+void VSTPluginInstance::writeToEffect(const std::wstring& chunkData, const std::unordered_map<std::wstring, float>& paramMap)
+{
+	if (effect == NULL)
+		return;
+
+	if (effect->flags & effFlagsProgramChunks)
+	{
+		if (chunkData != L"")
+		{
+			DWORD bufSize = 0;
+			CryptStringToBinaryW(chunkData.c_str(), 0, CRYPT_STRING_BASE64, NULL, &bufSize, NULL, NULL);
+			BYTE* buf = new BYTE[bufSize];
+			if (CryptStringToBinaryW(chunkData.c_str(), 0, CRYPT_STRING_BASE64, buf, &bufSize, NULL, NULL) == TRUE)
+				effect->dispatcher(effect, effSetChunk, 1, bufSize, buf, 0.0f);
+			delete[]buf;
+		}
+	}
+	else
+	{
+		for (int i = 0; i < effect->numParams; i++)
+		{
+			char buf[256];
+			effect->dispatcher(effect, effGetParamName, i, 0, buf, 0.0f);
+			wstring name = StringHelper::toWString(buf, CP_UTF8);
+			auto it = paramMap.find(name);
+			if (it != paramMap.end())
+				effect->setParameter(effect, i, it->second);
+		}
+	}
+}
+
+void VSTPluginInstance::readFromEffect(std::wstring& chunkData, std::unordered_map<std::wstring, float>& paramMap) const
+{
+	if (effect == NULL)
+		return;
+
+	chunkData = L"";
+	paramMap.clear();
+
+	if (effect->flags & effFlagsProgramChunks)
+	{
+		BYTE* chunk = NULL;
+		int size = (int)effect->dispatcher(effect, effGetChunk, 1, 0, &chunk, 0.0f);
+		DWORD stringLength;
+		CryptBinaryToStringW(chunk, size, CRYPT_STRING_BASE64 | CRYPT_STRING_NOCRLF, NULL, &stringLength);
+		wchar_t* string = new wchar_t[stringLength];
+		if (CryptBinaryToStringW(chunk, size, CRYPT_STRING_BASE64 | CRYPT_STRING_NOCRLF, string, &stringLength) == TRUE)
+			chunkData = string;
+		delete[]string;
+	}
+	else
+	{
+		for (int i = 0; i < effect->numParams; i++)
+		{
+			char buf[256];
+			effect->dispatcher(effect, effGetParamName, i, 0, buf, 0.0f);
+			float value = effect->getParameter(effect, i);
+			paramMap[StringHelper::toWString(buf, CP_UTF8)] = value;
+		}
+	}
+}
+
+void VSTPluginInstance::startProcessing()
+{
+	if (effect == NULL)
+		return;
+
+	effect->dispatcher(effect, effMainsChanged, 0, 1, NULL, 0.0f);
+	effect->dispatcher(effect, effStartProcess, 0, 0, NULL, 0.0f);
+}
+
+void VSTPluginInstance::processReplacing(float** inputArray, float** outputArray, int frameCount)
+{
+	if (effect == NULL)
+		return;
+
+	effect->processReplacing(effect, inputArray, outputArray, frameCount);
+}
+
+void VSTPluginInstance::process(float** inputArray, float** outputArray, int frameCount)
+{
+	if (effect == NULL)
+		return;
+
+	effect->process(effect, inputArray, outputArray, frameCount);
+}
+
+void VSTPluginInstance::stopProcessing()
+{
+	if (effect == NULL)
+		return;
+
+	effect->dispatcher(effect, effStopProcess, 0, 0, NULL, 0.0f);
+	effect->dispatcher(effect, effMainsChanged, 0, 0, NULL, 0.0f);
+}
+
+void VSTPluginInstance::startEditing(HWND hWnd, short* width, short* height)
+{
+	if (effect == NULL)
+		return;
+
+	VstRect* rect;
+	effect->dispatcher(effect, effEditGetRect, 0, 0, &rect, 0.0f);
+	effect->dispatcher(effect, effEditOpen, 0, 0, hWnd, 0.0f);
+	effect->dispatcher(effect, effEditGetRect, 0, 0, &rect, 0.0f);
+
+	*width = rect->right - rect->left;
+	*height = rect->bottom - rect->top;
+}
+
+void VSTPluginInstance::doIdle()
+{
+	if (effect == NULL)
+		return;
+
+	effect->dispatcher(effect, effEditIdle, 0, 0, NULL, 0.0f);
+}
+
+void VSTPluginInstance::stopEditing()
+{
+	if (effect == NULL)
+		return;
+
+	effect->dispatcher(effect, effEditClose, 0, 0, NULL, 0.0f);
+}
+
+void VSTPluginInstance::setAutomateFunc(std::function<void()> func)
+{
+	automateFunc = func;
+}
+
+void VSTPluginInstance::onAutomate()
+{
+	if (automateFunc)
+		automateFunc();
+}
+
+void VSTPluginInstance::setSizeWindowFunc(std::function<void(int, int)> func)
+{
+	sizeWindowFunc = func;
+}
+
+void VSTPluginInstance::onSizeWindow(int w, int h)
+{
+	if (sizeWindowFunc)
+		sizeWindowFunc(w, h);
+}

helpers/VSTPluginInstance.h

@@ -0,0 +1,78 @@
+/*
+    This file is part of Equalizer APO, a system-wide equalizer.
+    Copyright (C) 2017  Jonas Thedering
+
+    This program is free software; you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation; either version 2 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License along
+    with this program; if not, write to the Free Software Foundation, Inc.,
+    51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+*/
+
+#pragma once
+
+#include <string>
+#include <memory>
+#include <functional>
+#include "aeffectx.h"
+
+class VSTPluginLibrary;
+
+class VSTPluginInstance
+{
+public:
+	VSTPluginInstance(const std::shared_ptr<VSTPluginLibrary>& library, int processLevel);
+	~VSTPluginInstance();
+
+	bool initialize();
+
+	int numInputs() const;
+	int numOutputs() const;
+	bool canReplacing() const;
+	int uniqueID() const;
+	std::wstring getName() const;
+	int getUsedChannelCount() const;
+	void setUsedChannelCount(int count);
+	float getSampleRate() const;
+	int getProcessLevel() const;
+	void setProcessLevel(int value);
+	int getLanguage() const;
+	void setLanguage(int value);
+
+	void prepareForProcessing(float sampleRate, int blockSize);
+	void writeToEffect(const std::wstring& chunkData, const std::unordered_map<std::wstring, float>& paramMap);
+	void readFromEffect(std::wstring& chunkData, std::unordered_map<std::wstring, float>& paramMap) const;
+
+	void startProcessing();
+	void processReplacing(float** inputArray, float** outputArray, int frameCount);
+	void process(float** inputArray, float** outputArray, int frameCount);
+	void stopProcessing();
+
+	void startEditing(HWND hWnd, short* width, short* height);
+	void doIdle();
+	void stopEditing();
+
+	void setAutomateFunc(std::function<void()> func);
+	void onAutomate();
+
+	void setSizeWindowFunc(std::function<void(int, int)> func);
+	void onSizeWindow(int w, int h);
+
+private:
+	std::shared_ptr<VSTPluginLibrary> library;
+	AEffect* effect;
+	std::function<void()> automateFunc;
+	std::function<void(int, int)> sizeWindowFunc;
+	float sampleRate = 0.0f;
+	int usedChannelCount;
+	int processLevel = 0;
+	int language = 1;
+};

helpers/VSTPluginLibrary.cpp

@@ -0,0 +1,76 @@
+/*
+    This file is part of Equalizer APO, a system-wide equalizer.
+    Copyright (C) 2017  Jonas Thedering
+
+    This program is free software; you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation; either version 2 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License along
+    with this program; if not, write to the Free Software Foundation, Inc.,
+    51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+*/
+
+#include "stdafx.h"
+#include "RegistryHelper.h"
+#include "LogHelper.h"
+#include "VSTPluginLibrary.h"
+
+using namespace std;
+
+std::unordered_map<std::wstring, std::weak_ptr<VSTPluginLibrary> > VSTPluginLibrary::instanceMap;
+std::wstring VSTPluginLibrary::defaultPluginPath;
+
+std::shared_ptr<VSTPluginLibrary> VSTPluginLibrary::getInstance(const wstring& libPath)
+{
+	shared_ptr<VSTPluginLibrary> ptr;
+
+	auto it = instanceMap.find(libPath);
+	if (it != instanceMap.end())
+	{
+		weak_ptr<VSTPluginLibrary> instance = it->second;
+		ptr = instance.lock();
+	}
+
+	if (ptr == NULL)
+	{
+		ptr = shared_ptr<VSTPluginLibrary>(new VSTPluginLibrary(libPath));
+		instanceMap[libPath] = ptr;
+	}
+
+	return ptr;
+}
+
+wstring VSTPluginLibrary::getDefaultPluginPath()
+{
+	if (defaultPluginPath == L"")
+	{
+		wstring installPath = RegistryHelper::readValue(APP_REGPATH, L"InstallPath");
+		defaultPluginPath = installPath + L"\\plugins";
+	}
+
+	return defaultPluginPath;
+}
+
+std::wstring VSTPluginLibrary::getLibPath()
+{
+	return libPath;
+}
+
+bool VSTPluginLibrary::loadFunctions()
+{
+	VSTPluginMain = (vstPluginMain)GetProcAddress(module, "VSTPluginMain");
+
+	return VSTPluginMain != NULL;
+}
+
+VSTPluginLibrary::VSTPluginLibrary(const wstring& libPath)
+	: libPath(libPath)
+{
+}

helpers/VSTPluginLibrary.h

@@ -0,0 +1,49 @@
+/*
+    This file is part of Equalizer APO, a system-wide equalizer.
+    Copyright (C) 2017  Jonas Thedering
+
+    This program is free software; you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation; either version 2 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License along
+    with this program; if not, write to the Free Software Foundation, Inc.,
+    51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+*/
+
+#pragma once
+
+#include <memory>
+#include <string>
+#include <unordered_map>
+#include "AbstractLibrary.h"
+#include "aeffectx.h"
+#include <queue>
+#include "VSTPluginInstance.h"
+
+class VSTPluginLibrary : public AbstractLibrary
+{
+public:
+	static std::shared_ptr<VSTPluginLibrary> getInstance(const std::wstring& libPath);
+	static std::wstring getDefaultPluginPath();
+
+	std::wstring getLibPath() override;
+
+	typedef AEffect* (* vstPluginMain)(audioMasterCallback audioMaster);
+	vstPluginMain VSTPluginMain;
+
+protected:
+	bool loadFunctions() override;
+
+private:
+	VSTPluginLibrary(const std::wstring& libPath);
+	static std::unordered_map<std::wstring, std::weak_ptr<VSTPluginLibrary> > instanceMap;
+	static std::wstring defaultPluginPath;
+	std::wstring libPath;
+};

helpers/aeffectx.h

@@ -0,0 +1,391 @@
+/*
+ * aeffectx.h - simple header to allow VeSTige compilation and eventually work
+ *
+ * Copyright (c) 2006 Javier Serrano Polo <jasp00/at/users.sourceforge.net>
+ *
+ * This file is part of Linux MultiMedia Studio - http://lmms.sourceforge.net
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public
+ * License along with this program (see COPYING); if not, write to the
+ * Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+ * Boston, MA 02110-1301 USA.
+ *
+ */
+
+
+#ifndef _AEFFECTX_H
+#define _AEFFECTX_H
+
+#define CCONST(a, b, c, d)( ( ( (int) a ) << 24 ) |      \
+            ( ( (int) b ) << 16 ) |    \
+            ( ( (int) c ) << 8 ) |     \
+            ( ( (int) d ) << 0 ) )
+
+const int audioMasterAutomate = 0;
+const int audioMasterVersion = 1;
+const int audioMasterCurrentId = 2;
+const int audioMasterIdle = 3;
+const int audioMasterPinConnected = 4;
+// unsupported? 5
+const int audioMasterWantMidi = 6;
+const int audioMasterGetTime = 7;
+const int audioMasterProcessEvents = 8;
+const int audioMasterSetTime = 9;
+const int audioMasterTempoAt = 10;
+const int audioMasterGetNumAutomatableParameters = 11;
+const int audioMasterGetParameterQuantization = 12;
+const int audioMasterIOChanged = 13;
+const int audioMasterNeedIdle = 14;
+const int audioMasterSizeWindow = 15;
+const int audioMasterGetSampleRate = 16;
+const int audioMasterGetBlockSize = 17;
+const int audioMasterGetInputLatency = 18;
+const int audioMasterGetOutputLatency = 19;
+const int audioMasterGetPreviousPlug = 20;
+const int audioMasterGetNextPlug = 21;
+const int audioMasterWillReplaceOrAccumulate = 22;
+const int audioMasterGetCurrentProcessLevel = 23;
+const int audioMasterGetAutomationState = 24;
+const int audioMasterOfflineStart = 25;
+const int audioMasterOfflineRead = 26;
+const int audioMasterOfflineWrite = 27;
+const int audioMasterOfflineGetCurrentPass = 28;
+const int audioMasterOfflineGetCurrentMetaPass = 29;
+const int audioMasterSetOutputSampleRate = 30;
+// unsupported? 31
+const int audioMasterGetSpeakerArrangement = 31; // deprecated in 2.4?
+const int audioMasterGetVendorString = 32;
+const int audioMasterGetProductString = 33;
+const int audioMasterGetVendorVersion = 34;
+const int audioMasterVendorSpecific = 35;
+const int audioMasterSetIcon = 36;
+const int audioMasterCanDo = 37;
+const int audioMasterGetLanguage = 38;
+const int audioMasterOpenWindow = 39;
+const int audioMasterCloseWindow = 40;
+const int audioMasterGetDirectory = 41;
+const int audioMasterUpdateDisplay = 42;
+const int audioMasterBeginEdit = 43;
+const int audioMasterEndEdit = 44;
+const int audioMasterOpenFileSelector = 45;
+const int audioMasterCloseFileSelector = 46; // currently unused
+const int audioMasterEditFile = 47; // currently unused
+const int audioMasterGetChunkFile = 48; // currently unused
+const int audioMasterGetInputSpeakerArrangement = 49; // currently unused
+
+const int effFlagsHasEditor = 1;
+const int effFlagsCanReplacing = 1 << 4; // very likely
+const int effFlagsProgramChunks = 1 << 5; // from Ardour
+const int effFlagsIsSynth = 1 << 8; // currently unused
+
+const int effOpen = 0;
+const int effClose = 1; // currently unused
+const int effSetProgram = 2; // currently unused
+const int effGetProgram = 3; // currently unused
+// The next one was gleaned from http://www.kvraudio.com/forum/viewtopic.php?p=1905347
+const int effSetProgramName = 4;
+const int effGetProgramName = 5; // currently unused
+// The next two were gleaned from http://www.kvraudio.com/forum/viewtopic.php?p=1905347
+const int effGetParamLabel = 6;
+const int effGetParamDisplay = 7;
+const int effGetParamName = 8; // currently unused
+const int effSetSampleRate = 10;
+const int effSetBlockSize = 11;
+const int effMainsChanged = 12;
+const int effEditGetRect = 13;
+const int effEditOpen = 14;
+const int effEditClose = 15;
+const int effEditIdle = 19;
+const int effEditTop = 20;
+const int effIdentify = 22; // from http://www.asseca.org/vst-24-specs/efIdentify.html
+const int effGetChunk = 23; // from Ardour
+const int effSetChunk = 24; // from Ardour
+const int effProcessEvents = 25;
+// The next one was gleaned from http://www.asseca.org/vst-24-specs/efCanBeAutomated.html
+const int effCanBeAutomated = 26;
+// The next one was gleaned from http://www.kvraudio.com/forum/viewtopic.php?p=1905347
+const int effGetProgramNameIndexed = 29;
+// The next one was gleaned from http://www.asseca.org/vst-24-specs/efGetPlugCategory.html
+const int effGetPlugCategory = 35;
+const int effGetEffectName = 45;
+const int effGetParameterProperties = 56; // missing
+const int effGetVendorString = 47;
+const int effGetProductString = 48;
+const int effGetVendorVersion = 49;
+const int effCanDo = 51; // currently unused
+// The next one was gleaned from http://www.asseca.org/vst-24-specs/efIdle.html
+const int effIdle = 53;
+const int effGetVstVersion = 58; // currently unused
+// The next one was gleaned from http://www.asseca.org/vst-24-specs/efBeginSetProgram.html
+const int effBeginSetProgram = 67;
+// The next one was gleaned from http://www.asseca.org/vst-24-specs/efEndSetProgram.html
+const int effEndSetProgram = 68;
+// The next one was gleaned from http://www.asseca.org/vst-24-specs/efShellGetNextPlugin.html
+const int effShellGetNextPlugin = 70;
+// The next one was gleaned from http://www.asseca.org/vst-24-specs/efBeginLoadBank.html
+const int effBeginLoadBank = 75;
+// The next one was gleaned from http://www.asseca.org/vst-24-specs/efBeginLoadProgram.html
+const int  effBeginLoadProgram = 76;
+
+// The next two were gleaned from http://www.kvraudio.com/forum/printview.php?t=143587&start=0
+const int effStartProcess = 71;
+const int effStopProcess = 72;
+
+const int kEffectMagic = CCONST( 'V', 's', 't', 'P' );
+const int kVstLangEnglish = 1;
+const int kVstMidiType = 1;
+
+const int kVstNanosValid = 1 << 8;
+const int kVstPpqPosValid = 1 << 9;
+const int kVstTempoValid = 1 << 10;
+const int kVstBarsValid = 1 << 11;
+const int kVstCyclePosValid = 1 << 12;
+const int kVstTimeSigValid = 1 << 13;
+const int kVstSmpteValid = 1 << 14;   // from Ardour
+const int kVstClockValid = 1 << 15;   // from Ardour
+
+const int kVstTransportPlaying = 1 << 1;
+const int kVstTransportCycleActive = 1 << 2;
+const int kVstTransportChanged = 1;
+
+
+class RemoteVstPlugin;
+
+
+class VstMidiEvent
+{
+public:
+   // 00
+   int type;
+   // 04
+   int byteSize;
+   // 08
+   int deltaFrames;
+   // 0c?
+   int flags;
+   // 10?
+   int noteLength;
+   // 14?
+   int noteOffset;
+   // 18
+   char midiData[4];
+   // 1c?
+   char detune;
+   // 1d?
+   char noteOffVelocity;
+   // 1e?
+   char reserved1;
+   // 1f?
+   char reserved2;
+
+} ;
+
+
+
+
+class VstEvent
+{
+   char dump[sizeof( VstMidiEvent )];
+
+} ;
+
+
+
+
+class VstEvents
+{
+public:
+   // 00
+   int numEvents;
+   // 04
+   void *reserved;
+   // 08
+   VstEvent* events[1];
+
+} ;
+
+
+
+
+// Not finished, neither really used
+class VstParameterProperties
+{
+public:
+/* float stepFloat;
+   char label[64];
+   int flags;
+   int minInteger;
+   int maxInteger;
+   int stepInteger;
+   char shortLabel[8];
+   int category;
+   char categoryLabel[24];
+   char empty[128];*/
+
+   float stepFloat;
+   float smallStepFloat;
+   float largeStepFloat;
+   char label[64];
+   unsigned int flags;
+   unsigned int minInteger;
+   unsigned int maxInteger;
+   unsigned int stepInteger;
+   unsigned int largeStepInteger;
+   char shortLabel[8];
+   unsigned short displayIndex;
+   unsigned short category;
+   unsigned short numParametersInCategory;
+   unsigned short reserved;
+   char categoryLabel[24];
+   char future[16];
+
+} ;
+
+
+#include <stdint.h>
+
+class AEffect
+{
+public:
+   // Never use virtual functions!!!
+   // 00-03
+   int magic;
+   // dispatcher 04-07
+   intptr_t (* dispatcher)( AEffect * , int , int , intptr_t, void * , float );
+   // process, quite sure 08-0b
+   void (* process)( AEffect * , float * * , float * * , int );
+   // setParameter 0c-0f
+   void (* setParameter)( AEffect * , int , float );
+   // getParameter 10-13
+   float (* getParameter)( AEffect * , int );
+   // programs 14-17
+   int numPrograms;
+   // Params 18-1b
+   int numParams;
+   // Input 1c-1f
+   int numInputs;
+   // Output 20-23
+   int numOutputs;
+   // flags 24-27
+   int flags;
+   // Fill somewhere 28-2b
+   void * ptr1;
+   void * ptr2;
+   int initialDelay;
+   // Zeroes 34-37 38-3b
+   int empty3a;
+   int empty3b;
+   // 1.0f 3c-3f
+   float unkown_float;
+   // An object? pointer 40-43
+   void *ptr3;
+   // Zeroes 44-47
+   void *user;
+   // Id 48-4b
+   int32_t uniqueID;
+   int32_t version;
+   // processReplacing 50-53
+   void (* processReplacing)( AEffect * , float * * , float * * , int );
+
+} ;
+
+
+
+
+class VstTimeInfo
+{
+public:
+   // 00
+   double samplePos;
+   // 08
+   double sampleRate;
+   // 10
+   double nanoSeconds;
+   // 18
+   double ppqPos;
+   // 20?
+   double tempo;
+   // 28
+   double barStartPos;
+   // 30?
+   double cycleStartPos;
+   // 38?
+   double cycleEndPos;
+   // 40?
+   int timeSigNumerator;
+   // 44?
+   int timeSigDenominator;
+   // unconfirmed 48 4c 50
+   char empty3[4 + 4 + 4];
+   // 54
+   int flags;
+
+} ;
+
+
+
+typedef intptr_t (* audioMasterCallback)( AEffect * , int32_t, int32_t, intptr_t, void * , float );
+
+
+// from http://www.asseca.org/vst-24-specs/efGetParameterProperties.html
+enum VstParameterFlags
+{
+   kVstParameterIsSwitch                = 1 << 0,  // parameter is a switch (on/off)
+   kVstParameterUsesIntegerMinMax       = 1 << 1,  // minInteger, maxInteger valid
+   kVstParameterUsesFloatStep           = 1 << 2,  // stepFloat, smallStepFloat, largeStepFloat valid
+   kVstParameterUsesIntStep             = 1 << 3,  // stepInteger, largeStepInteger valid
+   kVstParameterSupportsDisplayIndex    = 1 << 4,  // displayIndex valid
+   kVstParameterSupportsDisplayCategory = 1 << 5,  // category, etc. valid
+   kVstParameterCanRamp                 = 1 << 6   // set if parameter value can ramp up/down
+};
+
+// from http://www.asseca.org/vst-24-specs/efBeginLoadProgram.html
+struct VstPatchChunkInfo
+{
+   int32_t version;           // Format Version (should be 1)
+   int32_t pluginUniqueID;    // UniqueID of the plug-in
+   int32_t pluginVersion;     // Plug-in Version
+   int32_t numElements;       // Number of Programs (Bank) or Parameters (Program)
+   char future[48];           // Reserved for future use
+};
+
+// from http://www.asseca.org/vst-24-specs/efGetPlugCategory.html
+enum VstPlugCategory
+{
+  kPlugCategUnknown = 0,    // 0=Unknown, category not implemented
+  kPlugCategEffect,         // 1=Simple Effect
+  kPlugCategSynth,          // 2=VST Instrument (Synths, samplers,...)
+  kPlugCategAnalysis,       // 3=Scope, Tuner, ...
+  kPlugCategMastering,      // 4=Dynamics, ...
+  kPlugCategSpacializer,    // 5=Panners, ...
+  kPlugCategRoomFx,         // 6=Delays and Reverbs
+  kPlugSurroundFx,          // 7=Dedicated surround processor
+  kPlugCategRestoration,    // 8=Denoiser, ...
+  kPlugCategOfflineProcess, // 9=Offline Process
+  kPlugCategShell,          // 10=Plug-in is container of other plug-ins  @see effShellGetNextPlugin()
+  kPlugCategGenerator,      // 11=ToneGenerator, ...
+  kPlugCategMaxCount        // 12=Marker to count the categories
+};
+
+
+
+class VstRect
+{
+public:
+   short top;
+   short left;
+   short bottom;
+   short right;
+} ;
+   
+#endif