@asianslut Another useful tool in Windows is Auto-Movie-Thumbnailer, available at https://funk.eu/amt/ . (It passes all the virus screens as being clean, and no, I don't get a commission, because it's free.)
The interface is a bit clunky (but not hard to use), and it has the advantage that you can take a whole folder of video files, drag it into the AMT window, and it will automatically make a preview for each video file, with the same name as the video file, but with a .jpg extension.
This is really handy if you are uploading a torrent with lots of video files--it lets users preview each video and then decide what they want to download. (I wish every multi-video-file torrent would do this.) A recent torrent upload at https://www.gaytor.rent/details.php?id=621a84ace470aa893f627acd8bc2072f2b01bc20a40d0974 seems to have used this software.
The default settings will then be applied to each video file, and that works OK for this purpose. It can be amusing, though...in the torrent above, one of the videos was very short so the preview file had only one image--a super close-up of the guy's dick head. One could do worse...
