code: def audio_output_enumerate_devices(self):
          
          r = []
          head = libvlc_audio_output_list_get(self)
          if head:
              i = head
              while i:
                  i = i.contents
                  d = [{'id':       libvlc_audio_output_device_id      (self, i.name, d),
                        'longname': libvlc_audio_output_device_longname(self, i.name, d)}
                     for d in range(libvlc_audio_output_device_count   (self, i.name))]
                  r.append({'name': i.name, 'description': i.description, 'devices': d})
                  i = i.next
              libvlc_audio_output_list_release(head)
          return r
docs: Enumerate the defined audio output devices.
  
          @return: list of dicts {name:, description:, devices:}