Because i couldn't find anything but the small hint, that subtitle are supported, i'm digging this old threat. It feels like the manual and documentation is really out of date, incomplete and unclear.
I made an Intro-Video, made subtitles with "Subtitle Edit", set them to "english" and saved them as *.ass. The recommended format. After that i used MKVToolKitNix to compile everything into a *.mkv. I added the subtitles as an external file and also put them into the container (i tried every variation with and without the subtitles in the mkv, etc)
The subtitles show up in my videoplayer, but not in the visionaire player.
Because i'm new to vis i just explain what i did: i made a new script-file and added this line:
game:setValue(VGameVideoSubtitleLanguage, "eng")
After that, i removed the checkmark from "definition script".
Then i added "At begin start following action" and added an action to call the script with the line above.
I also tried to call the script when clicking a button and then starting the video.
But yeah, nothing worked. No Subtitles and nothing in the log window. Any ideas what i could have made wrong?
Edit: Uff, ok, forget everything. The wiki says ssa, not ass. So i used ssa now, recompiled the mkv and now it works.