[Bug 667222] dvdspu: use refcounting instead of explicit copy

[GStreamer (bugzilla.gnome.org)]

https://bugzilla.gnome.org/show_bug.cgi?id=667222
  GStreamer | gst-plugins-bad | git

Tobias Mueller <gnome-bugs> changed:

           What    |Removed                     |Added
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             Status|NEEDINFO                    |NEW

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