I've been toying around with this for a couple hours. Getting the links is relatively straightforward (I'm using kickass torrents). How do you go about adding the magnet links to transmission-daemon? You can setup a watch directory so that torrents will automatically start downloading when you fetch a torrent file, but that's not what's being done here. I'm assuming you're remotely monitoring the downloads true, correct?
As for ffmpeg, is that automated or do you have to do some manual work every time a torrent is finished?
You could use aria2, which is a command line program so no need to deal with a daemon. Also, you could make it download just parts of a torrent (the start of the torrent for example) instead of the whole thing and take the screenshots from there.
As for ffmpeg, is that automated or do you have to do some manual work every time a torrent is finished?