GStreamer backend changes for media probing API.

QGstreamerPlayerSession: Using GStreamer buffer probes
to access media data.

Change-Id: Ibc056283fdedaebba90456cc4e86ab63eae5f5f7
Reviewed-by: Michael Goddard <michael.goddard@nokia.com>

src/multimedia/gsttools_headers/qgstutils_p.h

@@ -55,6 +55,7 @@
 
 #include <QtCore/qmap.h>
 #include <gst/gst.h>
+#include <qaudioformat.h>
 
 QT_BEGIN_NAMESPACE
 
@@ -67,6 +68,7 @@ namespace QGstUtils {
 
     QSize capsResolution(const GstCaps *caps);
     QSize capsCorrectedResolution(const GstCaps *caps);
+    QAudioFormat audioFormatForCaps(const GstCaps *caps);
 }
 
 QT_END_NAMESPACE

src/multimedia/gsttools_headers/qvideosurfacegstsink_p.h

@@ -135,6 +135,7 @@ public:
 
     static QVideoSurfaceGstSink *createSink(QAbstractVideoSurface *surface);
     static QVideoSurfaceFormat formatForCaps(GstCaps *caps, int *bytesPerLine = 0);
+    static void setFrameTimeStamps(QVideoFrame *frame, GstBuffer *buffer);
 
     static void handleShowPrerollChange(GObject *o, GParamSpec *p, gpointer d);