code: def libvlc_media_get_duration(p_md):
      '''Get duration (in ms) of media descriptor object item.
      @param p_md: media descriptor object.
      @return: duration of media item or -1 on error.
      '''
      f = _Cfunctions.get('libvlc_media_get_duration', None) or \
          _Cfunction('libvlc_media_get_duration', ((1,),), None,
                      ctypes.c_longlong, Media)
      return f(p_mdf libvlc_media_get_duration(p_md):
      '''Get duration (in ms) of media descriptor object item.
      @param p_md: media descriptor object.
      @return: duration of media item or -1 on error.
      '''
      f = _Cfunctions.get('libvlc_media_get_duration', None) or \
          _Cfunction('libvlc_media_get_duration', ((1,),), None,
                      ctypes.c_longlong, Media)
      return f(p_md)
docs: Get duration (in ms) of media descriptor object item.
      @param p_md: media descriptor object.
      @return: duration of media item or -1 on error.