There is a solution for android (java), to create thumbnails from a video that is online and weighs (658mb) about 2 hours and 30 minutes.
I read that ffmpeg, allows you to do such a thing to create thumbnails.
So I have some questions, since the video is online (http), it weighs a lot, so I can not download it:
1) ffmpeg can run on an android app? without having performance problems?
2) Is there probable solution without using ffmpeg?