[ekiga] Ekiga: Make sure video preview is stopped on exit.

[Damien Sandras <dsandras src gnome org>]

commit a6a44860358a654a08b28bfb79977ffc3089550d
Author: Damien Sandras <dsandras seconix com>
Date:   Sat Oct 24 09:44:34 2015 +0200

    Ekiga: Make sure video preview is stopped on exit.

 lib/engine/gui/gtk-frontend/ekiga-app.cpp |    5 +++++
 1 files changed, 5 insertions(+), 0 deletions(-)
---
diff --git a/lib/engine/gui/gtk-frontend/ekiga-app.cpp b/lib/engine/gui/gtk-frontend/ekiga-app.cpp
index 3353d2e..511612f 100644
--- a/lib/engine/gui/gtk-frontend/ekiga-app.cpp
+++ b/lib/engine/gui/gtk-frontend/ekiga-app.cpp
@@ -559,6 +559,11 @@ gm_application_shutdown (GApplication *app)
   GmApplication *self = GM_APPLICATION (app);
 
   g_return_if_fail (self);
+  {
+    boost::shared_ptr<Ekiga::VideoInputCore> video_input_core =
+      self->priv->core.get<Ekiga::VideoInputCore> ("videoinput-core");
+    video_input_core->stop_preview ();
+  }
 
   self->priv->fof_menu.reset ();
   self->priv->banks_menu.clear ();