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[matysek <963955@xxxxxxxxxxxxxxxxxx>]

I just committed some code to linked branch.

In vlcplayer.py we have to use function  .set_nsobject() to tell the vlc
backend where the video should be rendered.

However, the video reset() function does not work on OSX.   Comment this
function makes the playback working in preview.

There are still some remaining issues like:
- control buttons not working
- video on second screen is not displayed
- probably something else

** Branch linked: lp:~mzibricky/openlp/bug-963955

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https://bugs.launchpad.net/bugs/963955

Title:
  VLC backend for Mac OS X

Status in OpenLP - Worship Presentation Software:
  Confirmed

Bug description:
  VLC backend does not work on Mac. Instructing OpenLP to use vlc
  backend causes OpenLP to stuck and the application is not responding.

  Video playback starts when not trying reset video playback in openly.
  However the issue is that playback start in an external window and not
  in openly window.

  Getting vlc backend to work is platform specific thing and this needs
  to be implemented specifically for Mac.

  The issue is: Force vlc backend to render video inside a Qt window of
  OpenLP.

  To fi this we will need implement similar code like the following file:
  http://code.google.com/p/movie-content-editor/source/browse/trunk/VLCMacVideo.py

  Technically speaking wrapping native Mac OS X NSView window into class
  QtGui.QMacCocoaViewContainer.

  Links:

  http://groups.google.com/group/wxpython-mac/browse_thread/thread/550a4f93c1e498bd/ec8197dfa78a8201
  http://www.videolan.org/developers/vlc/projects/macosx/framework/Sources/VLCVideoView.m
  https://developer.apple.com/library/mac/#documentation/Cocoa/Reference/ApplicationKit/Classes/nsview_Class/Reference/NSView.html

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