Topic: Cache/Indexing?

Is there any way to do an offline analysis for encoding with an index file?

Perhaps something to cache/index the movie (frames) and then used as reference for encoding-only purposes.

Might be a stretch of a request, as I'm not entirely sure which filters or programs can help with this.

Re: Cache/Indexing?

No way.
Why you need that?
If you have powerful enough CPU (and GPU) you can watch smoothed video in realtime.
If you don't have it then you can save smoothed video with encode it to a new file and watch it an any time with not so powerful PC.