2 files changed, 19 insertions, 0 deletions
diff --git a/gst-libs/gst/xoverlay/xoverlay.c b/gst-libs/gst/xoverlay/xoverlay.c
index 2efe2966..73004f68 100644
--- a/gst-libs/gst/xoverlay/xoverlay.c
+++ b/gst-libs/gst/xoverlay/xoverlay.c
@@ -183,3 +183,20 @@ gst_x_overlay_got_desired_size (GstXOverlay *overlay, guint width, guint height)
   g_signal_emit (G_OBJECT (overlay),
                  gst_x_overlay_signals[DESIRED_SIZE], 0, width, height);
 }
+
+/**
+ * gst_x_overlay_expose:
+ * @overlay: a #GstXOverlay to expose.
+ *
+ * Tell an overlay that it has been exposed. This will redraw the current frame
+ * in the drawable even if the pipeline is PAUSED.
+ */
+void
+gst_x_overlay_expose (GstXOverlay *overlay)
+{
+  GstXOverlayClass *klass = GST_X_OVERLAY_GET_CLASS (overlay);
+
+  if (klass->expose) {
+    klass->expose (overlay);
+  }
+}
diff --git a/gst-libs/gst/xoverlay/xoverlay.h b/gst-libs/gst/xoverlay/xoverlay.h
index 4c684870..d92dc5ff 100644
--- a/gst-libs/gst/xoverlay/xoverlay.h
+++ b/gst-libs/gst/xoverlay/xoverlay.h
@@ -54,6 +54,7 @@ typedef struct _GstXOverlayClass {
   void (* get_desired_size) (GstXOverlay *overlay,
 			     guint *width,
 			     guint *height);
+  void (* expose) (GstXOverlay *overlay);
   
   /* signals */
   void (*have_xwindow_id) (GstXOverlay *overlay,
@@ -70,6 +71,7 @@ GType	gst_x_overlay_get_type		(void);
 /* virtual class function wrappers */
 void gst_x_overlay_set_xwindow_id (GstXOverlay *overlay, XID xwindow_id);
 void gst_x_overlay_get_desired_size (GstXOverlay *overlay, guint *width, guint *height);
+void gst_x_overlay_expose (GstXOverlay *overlay);
 
 /* public methods to fire signals */
 void gst_x_overlay_got_xwindow_id (GstXOverlay *overlay, XID xwindow_id);