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.

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;
-		while (true)
+		unsigned processedFrames = 0;
+		// 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 = -DBL_MAX;
-
-		for (int i = 0; i < frameCount / 2; i++)
+		double peakGain;
+		if (startFrame != -1)
 		{
-			float sqrGain = freqData[i][0] * freqData[i][0] + freqData[i][1] * freqData[i][1];
-			if (sqrGain > peakGain)
-				peakGain = sqrGain;
+			latency += startFrame;
+
+			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>
-    <height>65</height>
+    <width>665</width>
+    <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);
-	item->setPos(getNextChannelPoint(lastOutputItem, true));
-	addItem(item);
-	lastOutputItem = item;
+		addProxyItem->setPos(getNextChannelPoint(lastOutputItem, true));
+	}
+	addProxyItem->setVisible(true);
+
+	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="137"/>
+        <location filename="../guis/ConvolutionFilterGUI.ui" line="86"/>
+        <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="777"/>
-        <location filename="../MainWindow.cpp" line="796"/>
+        <location filename="../MainWindow.cpp" line="759"/>
+        <location filename="../MainWindow.cpp" line="786"/>
+        <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="777"/>
-        <location filename="../MainWindow.cpp" line="796"/>
+        <location filename="../MainWindow.cpp" line="759"/>
+        <location filename="../MainWindow.cpp" line="786"/>
+        <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="584"/>
+        <location filename="../MainWindow.cpp" line="537"/>
+        <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)
-	: QLineEdit(text, parent)
+ResizingLineEdit::ResizingLineEdit(const QString& text, bool forceWidth, QWidget* 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;
 };