[ashlar]

I tried installing a portable version on my machine. From what I see DSPlayer is not going to work with YouTube, without some serious work on the code. MPEG Dash passes info to LAV Splitter that LAV Splitter is simply incapable of handling.

We should try and find a way to work with this https://ys.3dyd.com/home/ but, again, I think it would mean re-working how the YouTube Kodi plugin works.

And I find that difficult to get, I mean, the YT plugin own threat is usually full of their own problems, perhaps I'm wrong, but I don't think the dev would be very interested , seems to me he's really busy. What do u think?

I think it depends... the filter I linked above takes the regular YouTube URL and plays it back according to settings in the filter itself. Theoretically, it might not be too hard to have an option that simply passes on the video url to DSPlayer to play it back. But I'm no programmer, unfortunately.
What happens now, from what I understand, is that the plugin accesses the video and does the filter's work before passing the stream to VideoPlayer. And DSPlayer is not able to understand that.