[Bug 709814] [examples/overlay] avoid to unref sink if not found. Also fix logic to find a sink in one of the example.

[GStreamer (bugzilla.gnome.org)]

https://bugzilla.gnome.org/show_bug.cgi?id=709814
  GStreamer | gst-plugins-base | git

Julien Isorce <julien.isorce> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
         Resolution|                            |FIXED

--- Comment #4 from Julien Isorce <julien.isorce at gmail.com> 2013-10-10 15:21:56 UTC ---
commit 973d1dcf39308a01f79b9bafe6bfa288523a1f0b
Author: Julien Isorce <julien.isorce at collabora.co.uk>
Date:   Thu Oct 10 14:09:19 2013 +0100

    examples/overlay: handle the case when xvimagesink is not found

    So that ximagesink can have a chance to be found.
    In qtgv-videooverlay.

commit e0dfbe9dfaabe9ca5828885f8d8b16433223aa5f
Author: Julien Isorce <julien.isorce at collabora.co.uk>
Date:   Thu Oct 10 14:01:44 2013 +0100

    examples/overlay: unref sink only when found

    In gtk-videooverlay and qt-videooverlay examples.

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