Bug fixes Part 2

- If the internal v4l2 grabber is switched off, it will now be de-initialized (Issue: #542)
- Extended error detection in MJPEG decompress method
- Default instance capture activation if it is missing in the configuration (https://hyperion-project.org/goto/post?id=13656#post-13656)
- Fixed some small (think)mistakes (https://hyperion-project.org/threads/hdmi-grabber.3302/page-2#post-14887)

include/grabber/V4L2Grabber.h

@@ -17,6 +17,7 @@
 
 #ifdef HAVE_JPEG
 	#include <QImage>
+	#include <QColor>
 	#include <jpeglib.h>
 	#include <csetjmp>
 #endif

libsrc/grabber/v4l2/V4L2Grabber.cpp

@@ -924,7 +924,28 @@ void V4L2Grabber::process_image(const uint8_t * data, int size)
 			return;
 		}
 
-		jpeg_start_decompress(_decompress);
+		_decompress->scale_num = 1;
+		_decompress->scale_denom = 1;
+		_decompress->out_color_space = JCS_RGB;
+		_decompress->dct_method = JDCT_IFAST;
+
+		if (!jpeg_start_decompress(_decompress))
+		{
+			jpeg_abort_decompress(_decompress);
+			jpeg_destroy_decompress(_decompress);
+			delete _decompress;
+			delete _error;
+			return;
+		}
+
+		if (_decompress->out_color_components != 3)
+		{
+			jpeg_abort_decompress(_decompress);
+			jpeg_destroy_decompress(_decompress);
+			delete _decompress;
+			delete _error;
+			return;
+		}
 
 		QImage imageFrame = QImage(_decompress->output_width, _decompress->output_height, QImage::Format_RGB888);
 
@@ -948,20 +969,18 @@ void V4L2Grabber::process_image(const uint8_t * data, int size)
 		imageFrame = imageFrame.copy(rect);
 		imageFrame = imageFrame.scaled(imageFrame.width() / _pixelDecimation, imageFrame.height() / _pixelDecimation,Qt::KeepAspectRatio);
 
-		if ((image.width() != unsigned(imageFrame.width())) && (image.height() != unsigned(imageFrame.height())))
+		if ((image.width() != unsigned(imageFrame.width())) || (image.height() != unsigned(imageFrame.height())))
 			image.resize(imageFrame.width(), imageFrame.height());
 
 		for (int y=0; y<imageFrame.height(); ++y)
-		{
 			for (int x=0; x<imageFrame.width(); ++x)
 			{
-				const QRgb inPixel = imageFrame.pixel(x,y);
+				QColor inPixel(imageFrame.pixel(x,y));
 				ColorRgb & outPixel = image(x,y);
-				outPixel.red   = (inPixel & 0xff0000) >> 16;
+				outPixel.red   = inPixel.red();
-				outPixel.green = (inPixel & 0xff00) >>  8;
+				outPixel.green = inPixel.green();
-				outPixel.blue  = (inPixel & 0xff);
+				outPixel.blue  = inPixel.blue();
 			}
-		}
 	}
 	else
 #endif
@@ -1045,7 +1064,7 @@ void V4L2Grabber::throw_errno_exception(const QString & error)
 
 void V4L2Grabber::setSignalDetectionEnable(bool enable)
 {
-	if(_signalDetectionEnabled != enable)
+	if (_signalDetectionEnabled != enable)
 	{
 		_signalDetectionEnabled = enable;
 		Info(_log, "Signal detection is now %s", enable ? "enabled" : "disabled");
@@ -1059,7 +1078,7 @@ bool V4L2Grabber::getSignalDetectionEnabled()
 
 void V4L2Grabber::setPixelDecimation(int pixelDecimation)
 {
-	if(_pixelDecimation != pixelDecimation)
+	if (_pixelDecimation != pixelDecimation)
 	{
 		_pixelDecimation = pixelDecimation;
 		_imageResampler.setHorizontalPixelDecimation(pixelDecimation);
@@ -1069,7 +1088,7 @@ void V4L2Grabber::setPixelDecimation(int pixelDecimation)
 
 void V4L2Grabber::setDeviceVideoStandard(QString device, VideoStandard videoStandard)
 {
-	if(_deviceName != device || _videoStandard != videoStandard)
+	if (_deviceName != device || _videoStandard != videoStandard)
 	{
 		// extract input of device
 		QChar input = device.at(device.size() - 1);
@@ -1079,9 +1098,9 @@ void V4L2Grabber::setDeviceVideoStandard(QString device, VideoStandard videoStan
 		_deviceName = device;
 		_videoStandard = videoStandard;
 
-		// start if init is a success
+// 		// start if init is a success
-		if(init())
+// 		if(init())
-			start();
+// 			start();
 	}
 }
 
@@ -1092,11 +1111,9 @@ void V4L2Grabber::componentStateChanged(const hyperion::Components component, bo
 		if (_initialized != enable)
 		{
 			if (enable)
-			{
+				start();
-				if(init()) start();
-			}
 			else
-				uninit();
+				stop();
 		}
 	}
 }

libsrc/hyperion/CaptureCont.cpp

@@ -82,6 +82,7 @@ void CaptureCont::setSystemCaptureEnable(const bool& enable)
 		}
 		_systemCaptEnabled = enable;
 		_hyperion->getComponentRegister().componentStateChanged(hyperion::COMP_GRABBER, enable);
+		_hyperion->setComponentState(hyperion::COMP_GRABBER, enable);
 	}
 }
 
@@ -103,6 +104,7 @@ void CaptureCont::setV4LCaptureEnable(const bool& enable)
 		}
 		_v4lCaptEnabled = enable;
 		_hyperion->getComponentRegister().componentStateChanged(hyperion::COMP_V4L, enable);
+		_hyperion->setComponentState(hyperion::COMP_V4L, enable);
 	}
 }
 

libsrc/hyperion/GrabberWrapper.cpp

@@ -104,11 +104,7 @@ void GrabberWrapper::handleSettingsUpdate(const settings::type& type, const QJso
 	if(type == settings::V4L2 || type == settings::SYSTEMCAPTURE)
 	{
 		// extract settings
-		QJsonObject obj;
+		const QJsonObject& obj = config.object();
-		if(config.isArray() && !config.isEmpty())
-			obj = config.array().at(0).toObject();
-		else
-			obj = config.object();
 
 		if(type == settings::SYSTEMCAPTURE  && !_grabberName.startsWith("V4L"))
 		{
@@ -172,5 +168,4 @@ void GrabberWrapper::handleSettingsUpdate(const settings::type& type, const QJso
 
 		}
 	}
-
 }

src/hyperion-v4l2/hyperion-v4l2.cpp

@@ -26,14 +26,6 @@
 
 using namespace commandline;
 
-// save the image as screenshot
-void saveScreenshot(QString filename, const Image<ColorRgb> & image)
-{
-	// store as PNG
-	QImage pngImage((const uint8_t *) image.memptr(), image.width(), image.height(), 3*image.width(), QImage::Format_RGB888);
-	pngImage.save(filename);
-}
-
 int main(int argc, char** argv)
 {
 	Logger *log = Logger::getInstance("V4L2GRABBER");

src/hyperiond/hyperiond.cpp

@@ -57,7 +57,7 @@ HyperionDaemon::HyperionDaemon(QString configFile, const QString rootPath, QObje
 	, _webserver(nullptr)
 	, _jsonServer(nullptr)
 	, _udpListener(nullptr)
-	, _v4l2Grabbers(nullptr)
+	, _v4l2Grabber(nullptr)
 	, _dispmanx(nullptr)
 	, _x11Grabber(nullptr)
 	, _amlGrabber(nullptr)
@@ -83,10 +83,10 @@ HyperionDaemon::HyperionDaemon(QString configFile, const QString rootPath, QObje
 
 	// set inital log lvl if the loglvl wasn't overwritten by arg
 	if(!logLvlOverwrite)
-		handleSettingsUpdate(settings::LOGGER, _settingsManager->getSetting(settings::LOGGER));
+		handleSettingsUpdate(settings::LOGGER, getSetting(settings::LOGGER));
 
 	// init EffectFileHandler
-	EffectFileHandler* efh = new EffectFileHandler(rootPath, _settingsManager->getSetting(settings::EFFECTS), this);
+	EffectFileHandler* efh = new EffectFileHandler(rootPath, getSetting(settings::EFFECTS), this);
 	connect(this, &HyperionDaemon::settingsChanged, efh, &EffectFileHandler::handleSettingsUpdate);
 
 	// spawn all Hyperion instances before network services
@@ -94,7 +94,7 @@ HyperionDaemon::HyperionDaemon(QString configFile, const QString rootPath, QObje
 
 	Info(_log, "Hyperion initialized");
 
-	//connect(_hyperion,SIGNAL(closing()),this,SLOT(freeObjects())); for app restart refactor required
+	//connect(_hyperion,SIGNAL(closing()),this,SLOT(freeObjects())); // TODO for app restart, refactor required
 
 	// listen for setting changes
 	connect(_hyperion, &Hyperion::settingsChanged, this, &HyperionDaemon::settingsChanged);
@@ -111,10 +111,17 @@ HyperionDaemon::HyperionDaemon(QString configFile, const QString rootPath, QObje
 		Warning(_log, "No platform capture can be instantiated, because all grabbers have been left out from the build");
 	#endif
 
-	// init system capture (framegrabber)
+	// get power state of system/v4l2 capture
+	const QJsonObject & grabberConfig = getSetting(settings::INSTCAPTURE).object();
+
+	// init system capture (framegrabber) and update power state
 	handleSettingsUpdate(settings::SYSTEMCAPTURE, getSetting(settings::SYSTEMCAPTURE));
-	// init v4l2 capture
+	_hyperion->setComponentState(hyperion::COMP_GRABBER, grabberConfig["systemEnable"].toBool(true));
+
+	// init v4l2 capture  and update power state
 	handleSettingsUpdate(settings::V4L2, getSetting(settings::V4L2));
+	_hyperion->setComponentState(hyperion::COMP_V4L, grabberConfig["v4lEnable"].toBool(true));
+
 	// ---- network services -----
 	startNetworkServices();
 }
@@ -162,10 +169,10 @@ void HyperionDaemon::freeObjects()
 	delete _fbGrabber;
 	delete _osxGrabber;
 	delete _qtGrabber;
-	delete _v4l2Grabbers;
+	delete _v4l2Grabber;
 	delete _stats;
 
-	_v4l2Grabbers          = nullptr;
+	_v4l2Grabber           = nullptr;
 	_bonjourBrowserWrapper = nullptr;
 	_amlGrabber            = nullptr;
 	_dispmanx              = nullptr;
@@ -384,24 +391,27 @@ void HyperionDaemon::handleSettingsUpdate(const settings::type& type, const QJso
 	{
 
 #ifdef ENABLE_V4L2
+			if(_v4l2Grabber != nullptr)
+				return;
+
 			const QJsonObject & grabberConfig = config.object();
 
-			V4L2Wrapper* grabber = new V4L2Wrapper(
+			_v4l2Grabber = new V4L2Wrapper(
 				grabberConfig["device"].toString("auto"),
 				parseVideoStandard(grabberConfig["standard"].toString("no-change")),
 				parsePixelFormat(grabberConfig["pixelFormat"].toString("no-change")),
 				grabberConfig["sizeDecimation"].toInt(8) );
-			grabber->setSignalThreshold(
+			_v4l2Grabber->setSignalThreshold(
 				grabberConfig["redSignalThreshold"].toDouble(0.0)/100.0,
 				grabberConfig["greenSignalThreshold"].toDouble(0.0)/100.0,
 				grabberConfig["blueSignalThreshold"].toDouble(0.0)/100.0);
-			grabber->setCropping(
+			_v4l2Grabber->setCropping(
 				grabberConfig["cropLeft"].toInt(0),
 				grabberConfig["cropRight"].toInt(0),
 				grabberConfig["cropTop"].toInt(0),
 				grabberConfig["cropBottom"].toInt(0));
-			grabber->setSignalDetectionEnable(grabberConfig["signalDetection"].toBool(true));
+			_v4l2Grabber->setSignalDetectionEnable(grabberConfig["signalDetection"].toBool(true));
-			grabber->setSignalDetectionOffset(
+			_v4l2Grabber->setSignalDetectionOffset(
 				grabberConfig["sDHOffsetMin"].toDouble(0.25),
 				grabberConfig["sDVOffsetMin"].toDouble(0.25),
 				grabberConfig["sDHOffsetMax"].toDouble(0.75),
@@ -409,8 +419,8 @@ void HyperionDaemon::handleSettingsUpdate(const settings::type& type, const QJso
 			Debug(_log, "V4L2 grabber created");
 
 			// connect to HyperionDaemon signal
-			connect(this, &HyperionDaemon::videoMode, grabber, &V4L2Wrapper::setVideoMode);
+			connect(this, &HyperionDaemon::videoMode, _v4l2Grabber, &V4L2Wrapper::setVideoMode);
-			connect(this, &HyperionDaemon::settingsChanged, grabber, &V4L2Wrapper::handleSettingsUpdate);
+			connect(this, &HyperionDaemon::settingsChanged, _v4l2Grabber, &V4L2Wrapper::handleSettingsUpdate);
 #else
 		Error(_log, "The v4l2 grabber can not be instantiated, because it has been left out from the build");
 #endif

src/hyperiond/hyperiond.h

@@ -137,7 +137,7 @@ private:
 	WebServer*                 _webserver;
 	JsonServer*                _jsonServer;
 	UDPListener*               _udpListener;
-	V4L2Wrapper*               _v4l2Grabbers;
+	V4L2Wrapper*               _v4l2Grabber;
 	DispmanxWrapper*           _dispmanx;
 	X11Wrapper*                _x11Grabber;
 	AmlogicWrapper*            _amlGrabber;