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[Tim Bentley <1589675@xxxxxxxxxxxxxxxxxx>]

The get_vlc method detects missing VLC then gets ignored!

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https://bugs.launchpad.net/bugs/1589675

Title:
  OpenLP on Linux crashes on startup when VLC not installed

Status in OpenLP:
  Confirmed

Bug description:
  Similar to bug #966086

  **OpenLP Bug Report**
  Version: {'build': None, 'version': '2.4.1', 'full': '2.4.1'}

  --- Details of the Exception. ---

  this occurred as OpenLP was opened

   --- Exception Traceback ---
  Traceback (most recent call last):
    File "/usr/bin/openlp", line 44, in <module>
      main()
    File "/usr/share/openlp/openlp/core/__init__.py", line 391, in main
      sys.exit(application.run(qt_args))
    File "/usr/share/openlp/openlp/core/__init__.py", line 142, in run
      Registry().execute('bootstrap_initialise')
    File "/usr/share/openlp/openlp/core/common/registry.py", line 137, in execute
      result = function(*args, **kwargs)
    File "/usr/share/openlp/openlp/core/lib/pluginmanager.py", line 60, in bootstrap_initialise
      self.hook_media_manager()
    File "/usr/share/openlp/openlp/core/lib/pluginmanager.py", line 122, in hook_media_manager
      plugin.create_media_manager_item()
    File "/usr/share/openlp/openlp/core/lib/plugin.py", line 204, in create_media_manager_item
      self.media_item = self.media_item_class(self.main_window.media_dock_manager.media_dock, self)
    File "/usr/share/openlp/openlp/plugins/media/lib/mediaitem.py", line 58, in __init__
      super(MediaMediaItem, self).__init__(parent, plugin)
    File "/usr/share/openlp/openlp/core/lib/mediamanageritem.py", line 82, in __init__
      self.setup_item()
    File "/usr/share/openlp/openlp/plugins/media/lib/mediaitem.py", line 90, in setup_item
      self.media_controller.setup_display(self.display_controller.preview_display, False)
    File "/usr/share/openlp/openlp/core/ui/media/mediacontroller.py", line 322, in setup_display
      player.setup(display)
    File "/usr/share/openlp/openlp/core/ui/media/vlcplayer.py", line 157, in setup
      display.vlc_instance = vlc.Instance(command_line_options)
    File "/usr/share/openlp/openlp/core/ui/media/vendor/vlc.py", line 1411, in __new__
      return libvlc_new(len(args), args)
    File "/usr/share/openlp/openlp/core/ui/media/vendor/vlc.py", line 3630, in libvlc_new
      ctypes.c_void_p, ctypes.c_int, ListPOINTER(ctypes.c_char_p))
    File "/usr/share/openlp/openlp/core/ui/media/vendor/vlc.py", line 246, in _Cfunction
      raise NameError('no function %r' % (name,))
  NameError: no function 'libvlc_new'

  --- System information ---
  Platform: Linux-4.2.0-36-generic-i686-with-Ubuntu-15.10-wily
  Desktop: GNOME

  --- Library Versions ---
  Python: 3.4.3+
  Qt5: 5.4.2
  PyQt5: 5.4.2
  QtWebkit: 538.1
  SQLAlchemy: 1.0.8
  SQLAlchemy Migrate: -
  BeautifulSoup: 4.3.2
  lxml: 3.4.4
  Chardet: 2.3.0
  PyEnchant: 1.6.6
  Mako: 1.0.2
  pyICU: -
  pyUNO bridge: 5.0
  VLC: -

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