1 — I was checking the server and noticed that the /media endpoint classifies images as video — is that correct?
2 — I’ve already seen some threads about this, but it’s worth asking again: what are the chances of Caspar implementing frame-by-frame and slow-mo? I mean not like an EVS or vMix Replay system that records in parallel and has tons of features, but something more like mpv, VLC, or even YouTube’s player.
During some tests I ended up with a JS script that sends two commands on different channels and uses SRT + FFmpeg vf, basically a huge workaround. Caspar itself accepts a command like Play 1-10 “File” VF setpts=2.0PTS, but if the command is Play 1-10 “File” SEEK 123 setpts=2.0PTS you’ll run into problems.
Another test was frame-by-frame using pause and then call + seek, but the issue is that you flood the server and risk crashing it. I also tested VLC with NDI and mpv with SRT, but they don’t perform well either.
There is a fork, that can do slow motion just like an EVS. That said, I don’t know if it’s still maintained.
For a simpler feature feel free to add a feature request at GitHub.