grabber api and feature unification (#462)

* move setvideomode to common place

* implement more croping and 3d support

* more api unification

* more refactoring

* osx fix

* next step

* add a mock for osx grabber. Now it is possible to test compile on none osx platforms.

* more unifications ...

* remove obsolete includes and grabbers are not dyn allocated. dispmanx needs rework an probaly not work atm

* first version of dispmanx mock. it compiles, but outputs a black image

* now dispmanx mock works!

* activate mocks in travis linux build
prepare dispmanx to rgb image out

* dispmanx now with image rgb output
fix deadlock with w/h -1 in grabber v4l
cleanups

* fix json

* fix some runtime stuff

* Update FramebufferWrapper.cpp

fix missing code

* unify grabframe

* 3d and croping for amlogic

* fix setimage not working

* make use of templates
save some codelines

* save more code lines

include/grabber/V4L2Wrapper.h

@@ -1,11 +1,6 @@
 #pragma once
 
-// Hyperion includes
-#include <hyperion/Hyperion.h>
-#include <hyperion/ImageProcessor.h>
 #include <hyperion/GrabberWrapper.h>
-
-// Grabber includes
 #include <grabber/V4L2Grabber.h>
 
 class V4L2Wrapper : public GrabberWrapper
@@ -17,8 +12,8 @@ public:
 			int input,
 			VideoStandard videoStandard,
 			PixelFormat pixelFormat,
-			int width,
-			int height,
+			unsigned width,
+			unsigned height,
 			int frameDecimation,
 			int pixelDecimation,
 			double redSignalThreshold,
@@ -26,7 +21,7 @@ public:
 			double blueSignalThreshold,
 			const int priority,
 			bool useGrabbingMode);
-	virtual ~V4L2Wrapper();
+	virtual ~V4L2Wrapper() {};
 
 	bool getSignalDetectionEnable();
 
@@ -36,7 +31,6 @@ public slots:
 
 	void setCropping(int cropLeft, int cropRight, int cropTop, int cropBottom);
 	void setSignalDetectionOffset(double verticalMin, double horizontalMin, double verticalMax, double horizontalMax);
-	void setVideoMode(VideoMode mode);
 	void setSignalDetectionEnable(bool enable);
 
 // signals:
@@ -50,12 +44,6 @@ private slots:
 	void checkSources();
 
 private:
-	/// The timeout of the led colors [ms]
-	const int _timeout_ms;
-
 	/// The V4L2 grabber
 	V4L2Grabber _grabber;
-
-	/// The list with computed led colors
-	std::vector<ColorRgb> _ledColors;
 };