[FEATURE] Ability to write out image or videos with boxes + labels saved on them

[mattdawkins]

Another minor issue but people in vpview use this a bit, though slightly more internally than externally but still a bit externally, for making powerpoint figures and things for presentations

[subdavis]

It would be ideal to do this with a celery task since ffmpeg is really what does this. If someone happens to have the ffmpeg script to do this handy, I know I've seen a version that Roddy has in perl.

It will require separate implementations in web and desktop (and still frames are actually easy to generate client-side). Which is more important?

[mattdawkins]

Neither are that important short-term (e.g. for tutorial), but desktop probably since this feature would see use on some other programs besides viame