2017-04-16, 11:32
I've found a solution. The Videofilename has to be parsed without any directories:
/sub/title_of_video.mkv ->
plugin://plugin.video.gdrive?mode=playvideo&title=title_of_video.mkv
into Title_of_video.strm
/sub/title_of_video.mkv ->
plugin://plugin.video.gdrive?mode=playvideo&title=title_of_video.mkv
into Title_of_video.strm