Avisynth is still great for processing video and doing non-interactive editing. It has built in filters for the basic operations you might want to do (such as t

Avisynth is still great for processing video and doing non-interactive editing. It has built in filters for the basic operations you might want to do (such as trimming and concatenating video files). It's basically a scripting language for video. I find it handy for processing interlaced video, and there are tons of external filters that can be installed. Double framerate deinterlacers, even motion-compensated frame rate conversion. I've used those type of filters to get very nice and extremely watchable smooth 60fps video from interlaced PAL DVDs (I have a personal conversion of the PAL Blackadder DVDs into 60fps and it looks wonderful).