hyperion.ng/include/grabber/AmlogicGrabber.h
2020-08-08 13:09:15 +02:00

58 lines
1.5 KiB
C++

#pragma once
// Utils includes
#include <utils/ColorBgr.h>
#include <utils/ColorRgba.h>
#include <hyperion/Grabber.h>
#include <grabber/FramebufferFrameGrabber.h>
///
///
class AmlogicGrabber : public Grabber
{
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(unsigned width, unsigned height);
~AmlogicGrabber() override;
///
/// 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<ColorRgb> & image);
private:
/**
* Returns true if video is playing over the amlogic chip
* @return True if video is playing else false
*/
bool isVideoPlaying();
void closeDev(int &fd);
bool openDev(int &fd, const char* dev);
int grabFrame_amvideocap(Image<ColorRgb> & image);
/** The snapshot/capture device of the amlogic video chip */
int _captureDev;
int _videoDev;
Image<ColorBgr> _image_bgr;
void* _image_ptr;
ssize_t _bytesToRead;
int _lastError;
bool _videoPlaying;
FramebufferFrameGrabber _fbGrabber;
int _grabbingModeNotification;
};