[gstreamermm] Init: Add the is_initialized() and the deinit() functions.

[Josà Alburquerque <jaalburqu src gnome org>]

commit 883627a94c760ff8b82cc547d157e42de5e66419
Author: Josà Alburquerque <jaalburqu svn gnome org>
Date:   Wed Sep 19 15:36:24 2012 -0400

    Init: Add the is_initialized() and the deinit() functions.
    
    	* gstreamer/gstreamermm/init.{cc,h}: Wrap the GStreamer
    	gst_is_initialized() and gst_deinit() functions.
    
    	Bug #684148 (kangaba yandex ru).

 ChangeLog                     |   11 ++++++++++-
 gstreamer/gstreamermm/init.cc |   10 ++++++++++
 gstreamer/gstreamermm/init.h  |   22 ++++++++++++++++++++--
 3 files changed, 40 insertions(+), 3 deletions(-)
---
diff --git a/ChangeLog b/ChangeLog
index 6fabe5f..0d65537 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,12 @@
+2012-09-19  Josà Alburquerque  <jaalburquerque gmail com>
+
+	Init: Add the is_initialized() and the deinit() functions.
+
+	* gstreamer/gstreamermm/init.{cc,h}: Wrap the GStreamer
+	gst_is_initialized() and gst_deinit() functions.
+
+	Bug #684148 (kangaba yandex ru).
+
 2012-09-14  Josà Alburquerque  <jaalburquerque gmail com>
 
 	Plug-ins: Speed up initialization by avoiding their loading on startup.
@@ -41,7 +50,7 @@
 	wrapping tests to create an Event, Message and Query to ensure that
 	the new create() methods work.
 
-	Bug #683580 (kangaba yandex ru)
+	Bug #683580 (kangaba yandex ru).
 
 2012-09-11  Josà Alburquerque  <jaalburquerque gmail com>
 
diff --git a/gstreamer/gstreamermm/init.cc b/gstreamer/gstreamermm/init.cc
index 0205428..5db40b2 100644
--- a/gstreamer/gstreamermm/init.cc
+++ b/gstreamer/gstreamermm/init.cc
@@ -113,6 +113,16 @@ bool init_check()
   return result;
 }
 
+bool is_initialized()
+{
+  return static_cast<bool>(gst_is_initialized());
+}
+
+void deinit()
+{
+  gst_deinit();
+}
+
 Glib::OptionGroup get_option_group()
 {
   return Glib::OptionGroup(gst_init_get_option_group());
diff --git a/gstreamer/gstreamermm/init.h b/gstreamer/gstreamermm/init.h
index 5e53c20..9cb009b 100644
--- a/gstreamer/gstreamermm/init.h
+++ b/gstreamer/gstreamermm/init.h
@@ -105,7 +105,7 @@ void init();
  * @return true if GStreamer could be initialized.
  * @throw Glib::Error
  */
-  bool init_check(int& argc, char**& argv);
+bool init_check(int& argc, char**& argv);
 
 /** Initializes gstreamermm gracefully without parsing command line arguments.
  *
@@ -130,7 +130,25 @@ void init();
  * @return true if GStreamer could be initialized.
  * @throw Glib::Error
  */
-  bool init_check();
+bool init_check();
+
+/** Use this function to check if GStreamer has been initialized.
+ * @return <tt>true</tt> if initialization has been done, <tt>false</tt>
+ * otherwise.
+ */
+bool is_initialized(void);
+
+/**  Clean up any resources created by GStreamer upon initialization.
+ *
+ * It is normally not needed to call this function in a normal application as
+ * the resources will automatically be freed when the program terminates.
+ * This function is therefore mostly used by testsuites and other memory
+ * profiling tools.
+ *
+ * After this call GStreamer (including this method) should not be used
+ * anymore. 
+ */
+void deinit();
 
 /** Returns a Glib::OptionGroup with GStreamer's argument specifications. The
  * group is set up to use standard GOption callbacks, so when using this group