implement set videomode via json api (#457)

* implement set videomode via json api

* refactor grabbers:
- new base class
- move shared code to base class

* fix osx

* rework all cmakelist files with auto file collection. except leddevices (need further restructuring)

* store current video and grabbing mode

* add json stuff

* remove grabbingmode - we do not want to expose it

include/grabber/AmlogicGrabber.h

@@ -1,18 +1,14 @@
 #pragma once
 
-// STL includes
-#include <cstdint>
-#include <utils/Logger.h>
 // Utils includes
-#include <utils/Image.h>
 #include <utils/ColorBgr.h>
-#include <utils/VideoMode.h>
+#include <hyperion/Grabber.h>
 
 ///
 /// The DispmanxFrameGrabber is used for creating snapshots of the display (screenshots) with a
 /// downsized and scaled resolution.
 ///
-class AmlogicGrabber
+class AmlogicGrabber : public Grabber
 {
 public:
 	///
@@ -24,12 +20,6 @@ public:
 	AmlogicGrabber(const unsigned width, const unsigned height);
 	~AmlogicGrabber();
 
-	///
-	/// 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
@@ -47,14 +37,6 @@ public:
 	 */
 	bool isVideoPlaying();
 private:
-
-	/// With of the captured snapshot [pixels]
-	const unsigned _width;
-	/// Height of the captured snapshot [pixels]
-	const unsigned _height;
-
 	/** The snapshot/capture device of the amlogic video chip */
 	int _amlogicCaptureDev;
-	
-	Logger * _log;
 };