[Bug 649040] Add volume control to qt-gstreamer example player

[GStreamer (bugzilla.gnome.org)]

https://bugzilla.gnome.org/show_bug.cgi?id=649040
  GStreamer | qt-gstreamer | 0.10.1

Marco Ballesio <gibrovacco> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
 Attachment #186946|0                           |1
        is obsolete|                            |

--- Comment #5 from Marco Ballesio <gibrovacco at gmail.com> 2011-05-01 12:34:47 UTC ---
Created an attachment (id=186971)
 View: https://bugzilla.gnome.org/attachment.cgi?id=186971
 Review: https://bugzilla.gnome.org/review?bug=649040&attachment=186971

beautified patch

here it is, just to be sure I've passed it through astyle, keeping only the
modifications it introduced in the new methods.

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