I am interested in WEBVTT support. WEBVTT is used by YouTube for all of its videos which contains one or more subtitle streams.
However if I have a file with a muxed WEBVTT subtitle stream, I would like to play it with my favourite Media Player, which his Directshow based.
Steps I did already:
https://github.com/mbunkus/mkvtoolnix/issues/1592
-> MKVToolNix can mux WEBVTT according to the specs they released for this.
-> asked nevcairiel, the author of LAV Filters to add support for WEBVTT
Now there is a subtitle renderer needed to support it.
I hope you are interested in it and add support of WEBVTT.
If you have any question, need a sample file or anything else, let me know