gboolean gst_object_get_g_value_array (GstObject * object, const gchar * property_name,
GstClockTime timestamp, GstClockTime interval,
guint n_values, GValue *values);
gboolean gst_object_get_g_value_array (GstObject * object, const gchar * property_name,
GstClockTime timestamp, GstClockTime interval,
guint n_values, GValue *values);