Fix playback problem with RTSP streaming for QMediaPlayer(gstreamer)

Change-Id: Ie920cbb5a377e810aee3e106bb50deb46365ce3b
Reviewed-by:Michael Goddard
(cherry picked from commit 05841ae6a9e0ffac623f9b00565bf33a52a22ecd)
Reviewed-on: http://codereview.qt.nokia.com/983
Reviewed-by: Qt Sanity Bot <qt_sanity_bot@ovi.com>

src/plugins/gstreamer/mediaplayer/qgstreamerplayersession.h

@@ -112,6 +112,8 @@ public:
     static void configureAppSrcElement(GObject*, GObject*, GParamSpec*,QGstreamerPlayerSession* _this);
 #endif
 
+    bool isLiveSource() const;
+
 public slots:
     void loadFromUri(const QNetworkRequest &url);
     void loadFromStream(const QNetworkRequest &url, QIODevice *stream);
@@ -208,10 +210,12 @@ private:
         UnknownSrc,
         SoupHTTPSrc,
         UDPSrc,
-        MMSSrc
+        MMSSrc,
+        RTSPSrc,
     };
     SourceType m_sourceType;
     bool m_everPlayed;
+    bool m_isLiveSource;
 };
 
 #endif // QGSTREAMERPLAYERSESSION_H