Update captions after player init

[rahmaniali-ir]

I have a working player with one caption track and it's working fine. But I need to add the functionality to update the caption after it's been initialized, to give the users the ability to select a different subtitle.

The problem is that I can not give the list of all available subtitles to the player when initializing, because they are '.srt' files so I have to convert the selected one to '.vtt' first.

I need a way to update the config after init, or a way to update the player to use the new converted subtitle.
I've been searching and trying different solutions and hacks that I could think of or find online, but no results yet.

Any solutions?