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View Full Version : Resize Filter, Final File Size, and AviSynth Question


Polarbear
11th June 2003, 01:25
Hello Everyone,

Three fairly trivial / general questions. Hope you folks don't mind helping out with the responses if you have the answers.


1) What is the difference between Sharp Bicubic vs. Lanczos (sharp) resizing filters? Are there benefits in choosing one over another? I used to favor Sharp Bicubic in the old-school days, and recently just saw Lanczos filter in the later builds of Gknot.

2) In Gknot 0.28.4 beta (and 0.28) w/ Divx 5.0.5, the file size predictor at the Bitrate panel, I always seemed to end up w/ ~1400MB final file size regardless of the source or using higher total file size predictor, ie., 1430MB. I want to sqeeze an extra 30 megabytes of data into the encoded .avi movies, so is it just the nature in the inaccuracy of file size prediction or my setup is wrong somewhere?

3) I previously installed AviSynth 2.0.8, how do I know that I am currently using the latest version of AviSynth during encoding process that came with the GK 0.28.4 beta package? Or does installing the beta rip-pack immediately ensures that encodings after that all use the newest AviSynth?

Thank you all in advance,

Cheers,
-Polarbear

hakko504
11th June 2003, 08:19
Avisynth.org have the answer (http://www.avisynth.org/index.php?page=Resize) Strange. Load the following AviSynth script into the VirtualDub that you use in Gordian Knot:version()

Polarbear
11th June 2003, 08:48
Thanx for the prompt reply.

1) Ditto.
2) Ditto. It seems that using Sharp Bicubic Filter allowed me to have the proper, or very close to estimated file size of 1430MB, but not using Lanczos.
3) Newb me, how do I load that particular .avs script w/ VirtualDubMod?

Thanx again,
-Polarbear

hakko504
11th June 2003, 08:55
Again we turn to avisynth.org (http://www.avisynth.org/index.php?page=YourFirstScript) and read the page YourFirstScript (http://www.avisynth.org/index.php?page=YourFirstScript)

But if you want to speed it up a bit you can press the 'start' button, find the Avisynth directory, and click the 'example script' directory, in which you'll find a script called 'version.avs'

Polarbear
11th June 2003, 10:30
Ahhh,

Danke.
.avs is treated as a plain ol' .avi, understood.
Version 2.52 it said.

Thank you very much,
-Polarbear