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/****************************************************************************
*
* (c) 2009-2016 QGROUNDCONTROL PROJECT <http://www.qgroundcontrol.org>
*
* QGroundControl is licensed according to the terms in the file
* COPYING.md in the root of the source code directory.
*
****************************************************************************/
/**
* @file
* @brief QGC Video Surface
* @author Gus Grubba <mavlink@grubba.com>
*/
#ifndef VIDEO_SURFACE_H
#define VIDEO_SURFACE_H
#include <QtCore/QObject>
#if defined(QGC_GST_STREAMING)
#include <gst/gst.h>
#endif
#if defined(QGC_GST_STREAMING)
class VideoSurfacePrivate;
#endif
class VideoSurface : public QObject
{
Q_OBJECT
Q_DISABLE_COPY(VideoSurface)
public:
explicit VideoSurface(QObject *parent = 0);
virtual ~VideoSurface();
/*! Returns the video sink element that provides this surface's image.
* The element will be constructed the first time that this function
* is called. The surface will always keep a reference to this element.
*/
#if defined(QGC_GST_STREAMING)
GstElement* videoSink();
time_t lastFrame() { return _lastFrame; }
void setLastFrame(time_t t) { _lastFrame = t; }
#endif
protected:
#if defined(QGC_GST_STREAMING)
void onUpdate();
static void onUpdateThunk(GstElement* sink, gpointer data);
#endif
private:
friend class VideoItem;
#if defined(QGC_GST_STREAMING)
VideoSurfacePrivate * const _data;
time_t _lastFrame;
bool _refed;
#endif
};
Q_DECLARE_METATYPE(VideoSurface*)
#endif // VIDEO_SURFACE_H