How to create random video screenshots on Ubuntu?

[Shaorin]

I'm running Ubuntu 24.04 LTS and i'm not a coder so I was wondering are there any GUI that can create 4 random screenshots from a video file? I don't want them in thumbnail size but full original size and each shot is saved in a separate file and not combined into one giant pic

After doing some googling I found a piece of code that involves using ffmpeg

ffmpeg -i 'crazy stuff.mkv' -vf "select='not(mod(n,10000))',setpts='N/(30*TB)'" -f image2 thumbnail%03d.jpg

but running this code is quite slow as it takes like 5mins. Is there any other faster methods?

[Dooby]

In Windows playing a video in VLC, I can capture 4 screenshots in 12 seconds, scrubbing and pressing SHIFT+S.
It depends on how many videos you have to index I suppose.

[vongooB9]

Hi, I am working on a program that can do this, among other things.

https://vongoob9.gitlab.io/subtitles_contact_sheet_qt/

The simplest way to do this would be to run:

subtitles_contact_sheet --screenshots 4 --jpg videofile.mkv

It has a GUI and many other options to control which frames to capture.