Added image handler to v4l2 grabber to send colors to Hyperion

Former-commit-id: be6fb4dd8080b3325ba6161f48c093f8a145786d

include/grabber/DispmanxWrapper.h

@@ -73,7 +73,7 @@ private:
 	const int _updateInterval_ms;
 	/// The timeout of the led colors [ms]
 	const int _timeout_ms;
-	/// The priority of the led colors [ms]
+	/// The priority of the led colors
 	const int _priority;
 
 	/// The timer for generating events with the specified update rate

include/grabber/V4L2Wrapper.h

@@ -0,0 +1,59 @@
+#pragma once
+
+// Hyperion includes
+#include <hyperion/Hyperion.h>
+#include <hyperion/ImageProcessor.h>
+
+// Grabber includes
+#include <grabber/V4L2Grabber.h>
+
+class V4L2Wrapper : public QObject
+{
+	Q_OBJECT
+
+public:
+	V4L2Wrapper(const std::string & device,
+			int input,
+			VideoStandard videoStandard,
+			int width,
+			int height,
+			int frameDecimation,
+			int pixelDecimation,
+			Hyperion * hyperion,
+			int hyperionPriority);
+	virtual ~V4L2Wrapper();
+
+public slots:
+	void start();
+
+	void stop();
+
+	void setCropping(int cropLeft,
+					 int cropRight,
+					 int cropTop,
+					 int cropBottom);
+
+	void set3D(VideoMode mode);
+
+private slots:
+	void newFrame(const Image<ColorRgb> & image);
+
+private:
+	/// The timeout of the led colors [ms]
+	const int _timeout_ms;
+
+	/// The priority of the led colors
+	const int _priority;
+
+	/// The V4L2 grabber
+	V4L2Grabber _grabber;
+
+	/// The processor for transforming images to led colors
+	ImageProcessor * _processor;
+
+	/// The Hyperion instance
+	Hyperion * _hyperion;
+
+	/// The list with computed led colors
+	std::vector<ColorRgb> _ledColors;
+};