Using AviSynth scripts (for a n00b)

[bakonfreek]

Could someone recommend me a program that I can use to process AviSynth scripts (and convert it to an AVI file) in less than 4 hours per 1 second? I apologize for how n00bish this sounds but I just got my computer back and my batch file I had that did this for me was deleted.

[Asmodian]

AVI? Are you sure you want AVIs? We would give better answers with more information (for example it is hard to know how fast something will encode without knowing what computer you are using)

This might replace your batch file but will write H.264 video into a mkv file. It assumes x264.exe (http://x264.nl/) is in the path or the same directory.
x264 --preset veryslow --tune film --crf 19 --output %~n1.mkv %1

[StickHorsie]

Depending on what you want your avisynth script to do, any program running the script can take anything from 30 minutes to a day and a half for a 90-minute movie on a simple, medium-speed PC (like mine). You'll have to show us the script before we can help you guess why it's taking so long. ;)

If you just crop and/or resize, it should run pretty quick, but if you use a slow denoiser plus a lot of other fancy stuff, 1 or 2 frames per second isn't very exceptional.