How do I speed up AviSynth processing a VideoFred script?

[MartinS]

I am copying 8 and 16mm cine using a Flir Blackfly MV camera and reversed Schneider-Kreuznack Companon lens (with very good results)

I can capture 2448x2048 stills:

TIFF 24 bit depth 14.7MB ea
png 24 bit depth 4.5MB
jpeg at 250KB

or an MJPEG avi video stream at 136Mb/s

I am processing the captures with a VideoFred script and AviSynth 2.6 with Virtualdub.

The problem is that processing 4 mins of cine from small jpeg's is taking 20 hours! (png's would take many times longer)

I have tried to process an AVI video stream of 1.9 GB and AviSynth crashed with memory warnings. I can cut the video stream into smaller clips but that would play havoc with the stabilising.

It wouldn't be so bad if I were copying only a couple of films but I have 24 hours of both 8 and 16mm to copy!

The results are so good after the VideoFred treatment that I have to find a way of speeding things up.


I am sure that all of this has been discussed before so please exuse me for repeating the question.

All help WILL be useful

Martin