hyperion.ng/include/grabber/AmlogicGrabber.h
redpanther 8fdf97e693 prepare standalone amlogic grabber
activate internal amlogic grabber forwarding


Former-commit-id: 21dabf759935836eef556baeb8a27e362e95ae96
2016-02-24 14:42:25 +01:00

59 lines
1.5 KiB
C++

#pragma once
// STL includes
#include <cstdint>
// Utils includes
#include <utils/Image.h>
#include <utils/ColorBgr.h>
#include <utils/VideoMode.h>
///
/// The DispmanxFrameGrabber is used for creating snapshots of the display (screenshots) with a
/// downsized and scaled resolution.
///
class AmlogicGrabber
{
public:
///
/// Construct a AmlogicGrabber that will capture snapshots with specified dimensions.
///
/// @param[in] width The width of the captured screenshot
/// @param[in] height The heigth of the captured screenshot
///
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
/// _height)
///
/// @param[out] image The snapped screenshot (should be initialized with correct width and
/// height)
/// @return Zero on success else negative
///
int grabFrame(Image<ColorBgr> & image);
/**
* Returns true if video is playing over the amlogic chip
* @return True if video is playing else false
*/
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;
};