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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 Receiver
* @author Gus Grubba <mavlink@grubba.com>
*/
#ifndef VIDEORECEIVER_H
#define VIDEORECEIVER_H
#include "QGCLoggingCategory.h"
#include <QObject>
#include <QTimer>
#include <QTcpSocket>
#if defined(QGC_GST_STREAMING)
#include <gst/gst.h>
#endif
Q_DECLARE_LOGGING_CATEGORY(VideoReceiverLog)
class VideoReceiver : public QObject
{
Q_OBJECT
public:
Q_PROPERTY(bool recording READ recording NOTIFY recordingChanged)
Q_PROPERTY(bool streaming READ streaming NOTIFY streamingChanged)
explicit VideoReceiver(QObject* parent = 0);
~VideoReceiver();
#if defined(QGC_GST_STREAMING)
void setVideoSink(GstElement* _sink);
#endif
bool running() { return _running; }
bool recording() { return _recording; }
bool streaming() { return _streaming; }
bool starting() { return _starting; }
bool stopping() { return _stopping; }
signals:
void recordingChanged();
void streamingChanged();
public slots:
void start ();
void stop ();
void setUri (const QString& uri);
void setVideoSavePath (const QString& path);
void stopRecording ();
void startRecording ();
private slots:
#if defined(QGC_GST_STREAMING)
void _timeout ();
void _connected ();
void _socketError (QAbstractSocket::SocketError socketError);
#endif
private:
#if defined(QGC_GST_STREAMING)
typedef struct
{
GstPad* teepad;
GstElement* queue;
GstElement* mux;
GstElement* filesink;
gboolean removing;
} Sink;
bool _running;
bool _recording;
bool _streaming;
bool _starting;
bool _stopping;
Sink* _sink;
GstElement* _tee;
void _onBusMessage(GstMessage* message);
void _eosCB(GstMessage* message);
void _unlinkCB(GstPadProbeInfo* info);
static gboolean _onBusMessage(GstBus* bus, GstMessage* message, gpointer user_data);
static gboolean _eosCallBack(GstBus* bus, GstMessage* message, gpointer user_data);
static GstPadProbeReturn _unlinkCallBack(GstPad* pad, GstPadProbeInfo* info, gpointer user_data);
#endif
QString _uri;
QString _path;
#if defined(QGC_GST_STREAMING)
GstElement* _pipeline;
GstElement* _pipelineStopRec;
GstElement* _videoSink;
#endif
//-- Wait for Video Server to show up before starting
#if defined(QGC_GST_STREAMING)
QTimer _timer;
QTcpSocket* _socket;
bool _serverPresent;
#endif
};
#endif // VIDEORECEIVER_H