New XBMC checker functionality: 3D video detection (filename based) and screensaver detection

Former-commit-id: ea95e4ecde3ab9378bdf9c4c60950713947bd0ac

deploy/hyperion.tar.gz.REMOVED.git-id

@@ -1 +1 @@
-c358364291c2377c26ef2912042fae6d7fe50d08
+42debced0ba50d4c1801b25ae3ce1a546ec7a94e

include/dispmanx-grabber/DispmanxWrapper.h

@@ -9,6 +9,7 @@
 #include <utils/ColorRgb.h>
 #include <utils/ColorRgba.h>
 #include <utils/GrabbingMode.h>
+#include <utils/VideoMode.h>
 
 // Forward class declaration
 class DispmanxFrameGrabber;
@@ -61,6 +62,12 @@ public slots:
 	///
 	void setGrabbingMode(const GrabbingMode mode);
 
+	///
+	/// Set the video mode (2D/3D)
+	/// @param[in] mode The new video mode
+	///
+	void setVideoMode(const VideoMode videoMode);
+
 private:
 	/// The update rate [Hz]
 	const int _updateInterval_ms;

include/utils/Image.h

@@ -118,6 +118,22 @@ public:
 		return _pixels[toIndex(x,y)];
 	}
 
+	/// Resize the image
+	/// @param width The width of the image
+	/// @param height The height of the image
+	void resize(const unsigned width, const unsigned height)
+	{
+		if ((width*height) > (_endOfPixels-_pixels))
+		{
+			delete[] _pixels;
+			_pixels = new Pixel_T[width*height + 1];
+			_endOfPixels = _pixels + width*height;
+		}
+
+		_width = width;
+		_height = height;
+	}
+
 	///
 	/// Copies another image into this image. The images should have exactly the same size.
 	///
@@ -165,9 +181,9 @@ private:
 
 private:
 	/// The width of the image
-	const unsigned _width;
+	unsigned _width;
 	/// The height of the image
-	const unsigned _height;
+	unsigned _height;
 
 	/// The pixels of the image
 	Pixel_T* _pixels;

include/utils/VideoMode.h

@@ -0,0 +1,11 @@
+#pragma once
+
+/**
+ * Enumeration of the possible modes in which video can be playing (2D, 3D)
+ */
+enum VideoMode
+{
+	VIDEO_2D,
+	VIDEO_3DSBS,
+	VIDEO_3DTAB
+};

include/xbmcvideochecker/XBMCVideoChecker.h

@@ -16,6 +16,7 @@
 
 // Utils includes
 #include <utils/GrabbingMode.h>
+#include <utils/VideoMode.h>
 
 ///
 /// This class will check if XBMC is playing something. When it does not, this class will send all black data to Hyperion.
@@ -33,13 +34,14 @@ public:
 	///
 	/// @param address Network address of the XBMC instance
 	/// @param port Port number to use (XBMC default = 9090)
-	/// @param interval The interval at which XBMC is polled
 	/// @param grabVideo Whether or not to grab when the XBMC video player is playing
 	/// @param grabPhoto Whether or not to grab when the XBMC photo player is playing
 	/// @param grabAudio Whether or not to grab when the XBMC audio player is playing
 	/// @param grabMenu Whether or not to grab when nothing is playing (in XBMC menu)
+	/// @param grabScreensaver 	Whether or not to grab when the XBMC screensaver is activated
+	/// @param enable3DDetection Wheter or not to enable the detection of 3D movies playing
 	///
-	XBMCVideoChecker(const std::string & address, uint16_t port, uint64_t interval, bool grabVideo, bool grabPhoto, bool grabAudio, bool grabMenu);
+	XBMCVideoChecker(const std::string & address, uint16_t port, bool grabVideo, bool grabPhoto, bool grabAudio, bool grabMenu, bool grabScreensaver, bool enable3DDetection);
 
 	///
 	/// Start polling XBMC
@@ -47,19 +49,34 @@ public:
 	void start();
 
 signals:
+	/// Signal emitted when the grabbing mode changes
 	void grabbingMode(GrabbingMode grabbingMode);
 
-private slots:
-	///
-	/// Send a request to XBMC
-	///
-	void sendRequest();
+	/// Signal emitted when a 3D movie is detected
+	void videoMode(VideoMode videoMode);
 
-	///
+private slots:
 	/// Receive a reply from XBMC
-	///
 	void receiveReply();
 
+	/// Called when connected to XBMC
+	void connected();
+
+	/// Called when disconnected from XBMC
+	void disconnected();
+
+	/// Called when a connection error was encountered
+	void connectionError(QAbstractSocket::SocketError error);
+
+private:
+	/// Set the grabbing mode
+	void setGrabbingMode(GrabbingMode grabbingMode);
+
+	void setScreensaverMode(bool isOnScreensaver);
+
+	/// Set the video mode
+	void setVideoMode(VideoMode videoMode);
+
 private:
 	/// The network address of the XBMC instance
 	const QString _address;
@@ -67,27 +84,42 @@ private:
 	/// The port number of XBMC
 	const uint16_t _port;
 
-	/// The JSON-RPC request message
-	const QByteArray _request;
+	/// The JSON-RPC message to check the active player
+	const QString _activePlayerRequest;
 
-	/// The timer that schedules XBMC queries
-	QTimer _timer;
+	/// The JSON-RPC message to check the currently playing file
+	const QString _currentPlayingItemRequest;
+
+	/// The JSON-RPC message to check the screensaver
+	const QString _checkScreensaverRequest;
 
 	/// The QT TCP Socket with connection to XBMC
 	QTcpSocket _socket;
 
 	/// Flag indicating whether or not to grab when the XBMC video player is playing
-	bool _grabVideo;
+	const bool _grabVideo;
 
 	/// Flag indicating whether or not to grab when the XBMC photo player is playing
-	bool _grabPhoto;
+	const bool _grabPhoto;
 
 	/// Flag indicating whether or not to grab when the XBMC audio player is playing
-	bool _grabAudio;
+	const bool _grabAudio;
 
 	/// Flag indicating whether or not to grab when XBMC is playing nothing (in menu)
-	bool _grabMenu;
+	const bool _grabMenu;
 
-	/// Previous emitted grab state
-	GrabbingMode _previousMode;
+	/// Flag inidcating whether or not to grab when the XBMC screensaver is activated
+	const bool _grabScreensaver;
+
+	/// Flag indicating wheter or not to enable the detection of 3D movies playing
+	const bool _enable3DDetection;
+
+	/// Flag indicating if XBMC is on screensaver
+	bool _previousScreensaverMode;
+
+	/// Previous emitted grab mode
+	GrabbingMode _previousGrabbingMode;
+
+	/// Previous emitted video mode
+	VideoMode _previousVideoMode;
 };

libsrc/dispmanx-grabber/DispmanxFrameGrabber.cpp

@@ -61,10 +61,29 @@ void DispmanxFrameGrabber::setFlags(const int vc_flags)
 	_vc_flags = vc_flags;
 }
 
+void DispmanxFrameGrabber::setVideoMode(const VideoMode videoMode)
+{
+	switch (videoMode) {
+	case VIDEO_3DSBS:
+		vc_dispmanx_rect_set(&_rectangle, 0, 0, _width/2, _height);
+		break;
+	case VIDEO_3DTAB:
+		vc_dispmanx_rect_set(&_rectangle, 0, 0, _width, _height/2);
+		break;
+	case VIDEO_2D:
+	default:
+		vc_dispmanx_rect_set(&_rectangle, 0, 0, _width, _height);
+		break;
+	}
+}
+
 void DispmanxFrameGrabber::grabFrame(Image<ColorRgba> & image)
 {
-	// Sanity check of the given image size
-	assert(image.width() == _width && image.height() == _height);
+	// resize the given image if needed
+	if (image.width() != unsigned(_rectangle.width) || image.height() != unsigned(_rectangle.height))
+	{
+		image.resize(_rectangle.width, _rectangle.height);
+	}
 
 	// Open the connection to the display
 	_vc_display = vc_dispmanx_display_open(0);
@@ -74,7 +93,7 @@ void DispmanxFrameGrabber::grabFrame(Image<ColorRgba> & image)
 
 	// Read the snapshot into the memory
 	void* image_ptr = image.memptr();
-	const unsigned destPitch = _width * sizeof(ColorRgba);
+	const unsigned destPitch = _rectangle.width * sizeof(ColorRgba);
 	vc_dispmanx_resource_read_data(_vc_resource, &_rectangle, image_ptr, destPitch);
 
 	// Close the displaye

libsrc/dispmanx-grabber/DispmanxFrameGrabber.h

@@ -10,6 +10,7 @@
 // Utils includes
 #include <utils/Image.h>
 #include <utils/ColorRgba.h>
+#include <utils/VideoMode.h>
 
 ///
 /// The DispmanxFrameGrabber is used for creating snapshots of the display (screenshots) with a
@@ -34,6 +35,12 @@ public:
 	///
 	void setFlags(const int vc_flags);
 
+	///
+	/// Set the video mode (2D/3D)
+	/// @param[in] mode The new video mode
+	///
+	void setVideoMode(const VideoMode videoMode);
+
 	///
 	/// Captures a single snapshot of the display and writes the data to the given image. The
 	/// provided image should have the same dimensions as the configured values (_width and
@@ -58,8 +65,7 @@ private:
 	int _vc_flags;
 
 	/// With of the captured snapshot [pixels]
-	unsigned _width;
+	const unsigned _width;
 	/// Height of the captured snapshot [pixels]
-	unsigned _height;
-
+	const unsigned _height;
 };

libsrc/dispmanx-grabber/DispmanxWrapper.cpp

@@ -81,3 +81,8 @@ void DispmanxWrapper::setGrabbingMode(const GrabbingMode mode)
 		break;
 	}
 }
+
+void DispmanxWrapper::setVideoMode(const VideoMode mode)
+{
+	_frameGrabber->setVideoMode(mode);
+}

libsrc/hyperion/hyperion.schema.json

@@ -255,6 +255,14 @@
                 "grabMenu" : {
                     "type" : "boolean",
                     "required" : true
+                },
+                "grabScreensaver" : {
+                    "type" : "boolean",
+                    "required" : false
+                },
+                "enable3DDetection" : {
+                    "type" : "boolean",
+                    "required" : false
                 }
             },
             "additionalProperties" : false

libsrc/xbmcvideochecker/XBMCVideoChecker.cpp

@@ -1,52 +1,50 @@
 // Qt includes
 #include <QUrl>
+#include <QRegExp>
+#include <QStringRef>
 
 #include <xbmcvideochecker/XBMCVideoChecker.h>
 
-XBMCVideoChecker::XBMCVideoChecker(const std::string & address, uint16_t port, uint64_t interval_ms, bool grabVideo, bool grabPhoto, bool grabAudio, bool grabMenu) :
+// Request player example:
+// {"id":666,"jsonrpc":"2.0","method":"Player.GetActivePlayers"}
+// {"id":666,"jsonrpc":"2.0","result":[{"playerid":1,"type":"video"}]}
+
+// Request playing item example:
+// {"id":667,"jsonrpc":"2.0","method":"Player.GetItem","params":{"playerid":1,"properties":["file"]}}
+// {"id":667,"jsonrpc":"2.0","result":{"item":{"file":"smb://xbmc:xbmc@192.168.53.12/video/Movies/Avatar (2009)/Avatar.mkv","label":"Avatar","type":"unknown"}}}
+
+// Request if screensaver is on
+// {"id":668,"jsonrpc":"2.0","method":"XBMC.GetInfoBooleans","params":{"booleans":["System.ScreenSaverActive"]}}
+// {"id":668,"jsonrpc":"2.0","result":{"System.ScreenSaverActive":false}}
+
+XBMCVideoChecker::XBMCVideoChecker(const std::string & address, uint16_t port, bool grabVideo, bool grabPhoto, bool grabAudio, bool grabMenu, bool grabScreensaver, bool enable3DDetection) :
 	QObject(),
 	_address(QString::fromStdString(address)),
 	_port(port),
-	_request(R"({"jsonrpc":"2.0","method":"Player.GetActivePlayers","id":666})"),
-	_timer(),
+	_activePlayerRequest(R"({"id":666,"jsonrpc":"2.0","method":"Player.GetActivePlayers"})"),
+	_currentPlayingItemRequest(R"({"id":667,"jsonrpc":"2.0","method":"Player.GetItem","params":{"playerid":%1,"properties":["file"]}})"),
+	_checkScreensaverRequest(R"({"id":668,"jsonrpc":"2.0","method":"XBMC.GetInfoBooleans","params":{"booleans":["System.ScreenSaverActive"]}})"),
 	_socket(),
 	_grabVideo(grabVideo),
 	_grabPhoto(grabPhoto),
 	_grabAudio(grabAudio),
 	_grabMenu(grabMenu),
-	_previousMode(GRABBINGMODE_INVALID)
+	_grabScreensaver(grabScreensaver),
+	_enable3DDetection(enable3DDetection),
+	_previousScreensaverMode(false),
+	_previousGrabbingMode(GRABBINGMODE_INVALID),
+	_previousVideoMode(VIDEO_2D)
 {
-	// setup timer
-	_timer.setSingleShot(false);
-	_timer.setInterval(interval_ms);
-	connect(&_timer, SIGNAL(timeout()), this, SLOT(sendRequest()));
-
 	// setup socket
 	connect(&_socket, SIGNAL(readyRead()), this, SLOT(receiveReply()));
+	connect(&_socket, SIGNAL(disconnected()), this, SLOT(disconnected()));
+	connect(&_socket, SIGNAL(connected()), this, SLOT(connected()));
+	connect(&_socket, SIGNAL(error(QAbstractSocket::SocketError)), this, SLOT(connectionError(QAbstractSocket::SocketError)));
 }
 
 void XBMCVideoChecker::start()
 {
-	_timer.start();
-}
-
-void XBMCVideoChecker::sendRequest()
-{
-	switch (_socket.state())
-	{
-	case QTcpSocket::UnconnectedState:
-		// not connected. try to connect
-		std::cout << "Connecting to " << _address.toStdString() << ":" << _port << " to check XBMC player status" << std::endl;
-		_socket.connectToHost(_address, _port);
-		break;
-	case QTcpSocket::ConnectedState:
-		// write the request on the socket
-		_socket.write(_request);
-		break;
-	default:
-		// whatever. let's check again at the next timer tick
-		break;
-	}
+	disconnected();
 }
 
 void XBMCVideoChecker::receiveReply()
@@ -54,62 +52,195 @@ void XBMCVideoChecker::receiveReply()
 	// expect that the reply is received as a single message. Probably oke considering the size of the expected reply
 	QString reply(_socket.readAll());
 
-	// check if the resply is a reply to one of my requests
-	if (!reply.contains("\"id\":666"))
+	std::cout << "Message from XBMC: " << reply.toStdString() << std::endl;
+
+	if (reply.contains("\"method\":\"Player.OnPlay\""))
 	{
-		// probably not. Leave this mreply as is and don't act on it
+		// send a request for the current player state
+		_socket.write(_activePlayerRequest.toUtf8());
 		return;
 	}
+	else if (reply.contains("\"method\":\"Player.OnStop\""))
+	{
+		// the player has stopped
+		setGrabbingMode(_grabMenu ? GRABBINGMODE_MENU : GRABBINGMODE_OFF);
+		setVideoMode(VIDEO_2D);
+	}
+	else if (reply.contains("\"method\":\"GUI.OnScreensaverActivated\""))
+	{
+		setScreensaverMode(!_grabScreensaver);
+	}
+	else if (reply.contains("\"method\":\"GUI.OnScreensaverDeactivated\""))
+	{
+		setScreensaverMode(false);
+	}
+	else if (reply.contains("\"id\":666"))
+	{
+		// Result of Player.GetActivePlayers
 
-	GrabbingMode newMode = GRABBINGMODE_INVALID;
-	if (reply.contains("video"))
-	{
-		// video is playing
-		newMode = _grabVideo ? GRABBINGMODE_VIDEO : GRABBINGMODE_OFF;
-	}
-	else if (reply.contains("picture"))
-	{
-		// picture viewer is playing
-		newMode = _grabPhoto ? GRABBINGMODE_PHOTO : GRABBINGMODE_OFF;
-	}
-	else if (reply.contains("audio"))
-	{
-		// audio is playing
-		newMode = _grabAudio ? GRABBINGMODE_AUDIO : GRABBINGMODE_OFF;
-	}
-	else
-	{
-		// Nothing is playing.
-		newMode = _grabMenu ? GRABBINGMODE_MENU : GRABBINGMODE_OFF;
-	}
+		// always start a new video in 2D mode
+		emit videoMode(VIDEO_2D);
 
-	// emit new state if applicable
-	if (newMode != _previousMode && newMode != GRABBINGMODE_INVALID)
-	{
-		switch (newMode)
+		if (reply.contains("video"))
 		{
-		case GRABBINGMODE_VIDEO:
-			std::cout << "XBMC checker: switching to VIDEO mode" << std::endl;
-			break;
-		case GRABBINGMODE_PHOTO:
-			std::cout << "XBMC checker: switching to PHOTO mode" << std::endl;
-			break;
-		case GRABBINGMODE_AUDIO:
-			std::cout << "XBMC checker: switching to AUDIO mode" << std::endl;
-			break;
-		case GRABBINGMODE_MENU:
-			std::cout << "XBMC checker: switching to MENU mode" << std::endl;
-			break;
-		case GRABBINGMODE_OFF:
-			std::cout << "XBMC checker: switching to OFF mode" << std::endl;
-			break;
-		case GRABBINGMODE_INVALID:
-			std::cout << "XBMC checker: switching to INVALID mode" << std::endl;
-			break;
-		}
+			// video is playing
+			setGrabbingMode(_grabVideo ? GRABBINGMODE_VIDEO : GRABBINGMODE_OFF);
 
-		emit grabbingMode(newMode);
-		_previousMode = newMode;
+			// we need to get the filename
+			// first retrieve the playerid
+			QString key = "\"playerid\":";
+			QRegExp regex(key + "(\\d+)");
+			int pos = regex.indexIn(reply);
+			if (pos > 0)
+			{
+				// now request info of the playing item
+				QStringRef idText(&reply, pos + key.length(), regex.matchedLength() - key.length());
+				_socket.write(_currentPlayingItemRequest.arg(idText.toString()).toUtf8());
+			}
+		}
+		else if (reply.contains("picture"))
+		{
+			// picture viewer is playing
+			setGrabbingMode(_grabPhoto ? GRABBINGMODE_PHOTO : GRABBINGMODE_OFF);
+		}
+		else if (reply.contains("audio"))
+		{
+			// audio is playing
+			setGrabbingMode(_grabAudio ? GRABBINGMODE_AUDIO : GRABBINGMODE_OFF);
+		}
+		else
+		{
+			// Nothing is playing.
+			setGrabbingMode(_grabMenu ? GRABBINGMODE_MENU : GRABBINGMODE_OFF);
+		}
+	}
+	else if (reply.contains("\"id\":667"))
+	{
+		// result of Player.GetItem
+		// TODO: what if the filename contains a '"'. In Json this should have been escaped
+		QRegExp regex("\"file\":\"((?!\").)*\"");
+		int pos = regex.indexIn(reply);
+		if (pos > 0)
+		{
+			QStringRef filename = QStringRef(&reply, pos+8, regex.matchedLength()-9);
+			if (filename.contains("3DSBS", Qt::CaseInsensitive) || filename.contains("HSBS", Qt::CaseInsensitive))
+			{
+				setVideoMode(VIDEO_3DSBS);
+			}
+			else if (filename.contains("3DTAB", Qt::CaseInsensitive) || filename.contains("HTAB", Qt::CaseInsensitive))
+			{
+				setVideoMode(VIDEO_3DTAB);
+			}
+			else
+			{
+				setVideoMode(VIDEO_2D);
+			}
+		}
+	}
+	else if (reply.contains("\"id\":668"))
+	{
+		// result of System.ScreenSaverActive
+		bool active = reply.contains("\"System.ScreenSaverActive\":true");
+		setScreensaverMode(!_grabScreensaver && active);
 	}
 }
 
+void XBMCVideoChecker::connected()
+{
+	std::cout << "XBMC Connected" << std::endl;
+
+	// send a request for the current player state
+	_socket.write(_activePlayerRequest.toUtf8());
+	_socket.write(_checkScreensaverRequest.toUtf8());
+}
+
+void XBMCVideoChecker::disconnected()
+{
+	std::cout << "XBMC Disconnected" << std::endl;
+
+	// try to connect
+	_socket.connectToHost(_address, _port);
+}
+
+void XBMCVideoChecker::connectionError(QAbstractSocket::SocketError)
+{
+	std::cout << "XBMC Connection error" << std::endl;
+
+	// try to connect again in 1 second
+	QTimer::singleShot(1000, this, SLOT(disconnected()));
+}
+
+void XBMCVideoChecker::setGrabbingMode(GrabbingMode newGrabbingMode)
+{
+	if (newGrabbingMode == _previousGrabbingMode)
+	{
+		// no change
+		return;
+	}
+
+	switch (newGrabbingMode)
+	{
+	case GRABBINGMODE_VIDEO:
+		std::cout << "XBMC checker: switching to VIDEO mode" << std::endl;
+		break;
+	case GRABBINGMODE_PHOTO:
+		std::cout << "XBMC checker: switching to PHOTO mode" << std::endl;
+		break;
+	case GRABBINGMODE_AUDIO:
+		std::cout << "XBMC checker: switching to AUDIO mode" << std::endl;
+		break;
+	case GRABBINGMODE_MENU:
+		std::cout << "XBMC checker: switching to MENU mode" << std::endl;
+		break;
+	case GRABBINGMODE_OFF:
+		std::cout << "XBMC checker: switching to OFF mode" << std::endl;
+		break;
+	case GRABBINGMODE_INVALID:
+		std::cout << "XBMC checker: switching to INVALID mode" << std::endl;
+		break;
+	}
+
+	// only emit the new state when we want to grab in screensaver mode or when the screensaver is deactivated
+	if (!_previousScreensaverMode)
+	{
+		emit grabbingMode(newGrabbingMode);
+	}
+	_previousGrabbingMode = newGrabbingMode;
+}
+
+void XBMCVideoChecker::setScreensaverMode(bool isOnScreensaver)
+{
+	if (isOnScreensaver == _previousScreensaverMode)
+	{
+		// no change
+		return;
+	}
+
+	emit grabbingMode(isOnScreensaver ? GRABBINGMODE_OFF : _previousGrabbingMode);
+	_previousScreensaverMode = isOnScreensaver;
+}
+
+void XBMCVideoChecker::setVideoMode(VideoMode newVideoMode)
+{
+	if (newVideoMode == _previousVideoMode)
+	{
+		// no change
+		return;
+	}
+
+	switch (newVideoMode)
+	{
+	case VIDEO_2D:
+		std::cout << "XBMC checker: switching to 2D mode" << std::endl;
+		break;
+	case VIDEO_3DSBS:
+		std::cout << "XBMC checker: switching to 3D SBS mode" << std::endl;
+		break;
+	case VIDEO_3DTAB:
+		std::cout << "XBMC checker: switching to 3D TAB mode" << std::endl;
+		break;
+	}
+
+	emit videoMode(newVideoMode);
+	_previousVideoMode = newVideoMode;
+}

src/hyperiond/hyperiond.cpp

@@ -123,11 +123,12 @@ int main(int argc, char** argv)
 		xbmcVideoChecker = new XBMCVideoChecker(
 			videoCheckerConfig["xbmcAddress"].asString(),
 			videoCheckerConfig["xbmcTcpPort"].asUInt(),
-			1000,
 			videoCheckerConfig["grabVideo"].asBool(),
 			videoCheckerConfig["grabPictures"].asBool(),
 			videoCheckerConfig["grabAudio"].asBool(),
-			videoCheckerConfig["grabMenu"].asBool());
+			videoCheckerConfig["grabMenu"].asBool(),
+			videoCheckerConfig.get("grabScreensaver", true).asBool(),
+			videoCheckerConfig.get("enable3DDetection", true).asBool());
 
 		xbmcVideoChecker->start();
 		std::cout << "XBMC video checker created and started" << std::endl;
@@ -148,6 +149,7 @@ int main(int argc, char** argv)
 		if (xbmcVideoChecker != nullptr)
 		{
 			QObject::connect(xbmcVideoChecker, SIGNAL(grabbingMode(GrabbingMode)), dispmanx, SLOT(setGrabbingMode(GrabbingMode)));
+			QObject::connect(xbmcVideoChecker, SIGNAL(videoMode(VideoMode)), dispmanx, SLOT(setVideoMode(VideoMode)));
 		}
 
 		dispmanx->start();

test/TestRs232HighSpeed.cpp

@@ -12,8 +12,8 @@ public:
 		// empty
 	}
 
-	int write(const std::vector<ColorRgb> &ledValues) {}
-	int switchOff() {};
+	int write(const std::vector<ColorRgb> &ledValues) { return 0; }
+	int switchOff() { return 0; }
 
 	void writeTestSequence()
 	{