I have created a Teleprompter application in which I want to add an auto-caption feature. Users will record videos with the generated script, and if they want to add captions to their videos, they can do so and download the video with captions. How can I achieve this in Flutter?

I searched for it and found some libraries, but I will need to add VTT or SRT files for that. I also searched for how to create SRT or VTT files but didn’t find a solution. Can anyone please help with this?