AVIsynth video processing

[Tafflad]

When running scripts which have a lot of work to do (QTGMC and MCTemporalDenoise for example) the frame rate can drop and time to process can be long, yet PC processor '% busy' never gets very high.
Can you add more horsepower to Avisynth ? ... is there an option to enable multi threading, or offload video crunching to CUDA GPU ?

Sorry if this is too basic a Q.

[DB83]

There is an 'unofficial' multithreading version of avisynth.

Take a look at this topic which also links to the download.

https://forum.videohelp.com/threads/345792-Using-Avisynth-MT-with-QTGMC

You will see that other settings must be made in your script else this just behaves like a single-threading version.

BTW I never regard cpu getting high as a bad sign. Quite the reverse since higher the number the cpu is over-working.

[Tafflad]

Agreed on CPU setting ... this is the issue, frame rate drops to 4fps ... and my CPU usage is not getting particularly high .... never going above about 27% on processor 1 and about 20% on processor 1 ... so lots of cpu cycles left.
OK if it means a lot of changes in scripts - then I'll leave as is ....

[DB83]

I do not see a lot of changes. Just a few declarations early on.

But I have no opportunity to check this out. Would suggest you edit your topic header which might encourage someone with multithreading experience to come on board and 'hold your hand'

[Tafflad]

I'll update header.
Just checking as some of the processing is taking many Hrs .... and with 80% cpu unused might be a way to reduce time.