How to encode black & white movies

[Northpack]

Back in GKnot-times I used to encode b&w movies with the option greyscale to save some bits. I wonder how I can enable this option using MeGUI/xvid_encraw?
Another question: is there still an advantage of using xvid's greyscale option on an avs-source with chroma wiped out via greyscale()?
Whats about chroma motion? Does chroma=0 mean that the algorythms will be disabled? Or can I save some time by disabling it on b&w content?

Thanks!

[unskinnyboy]

Back in GKnot-times I used to encode b&w movies with the option greyscale to save some bits. I wonder how I can enable this option using MeGUI/xvid_encraw?You can't at the moment, unless you use this (http://forum.doom9.org/showthread.php?t=145631)build, because the Greyscale encoding feature falls under zones. The zones feature was taken out of MeGUI a while back, but will be put back in again as an extended feature, at some point in the future.
Another question: is there still an advantage of using xvid's greyscale option on an avs-source with chroma wiped out via greyscale()?No.
Whats about chroma motion? Does chroma=0 mean that the algorythms will be disabled? Or can I save some time by disabling it on b&w content? You mean -nochromame? Yes, you can save some time, but a very small amount.

Also, see this (http://forum.doom9.org/showthread.php?t=145853)thread. Much of that is also true for Xvid.

[Northpack]

Ok, that's what I wanted to know. Thanks for the explanation! Do you know why the zones feature was taken out?

[unskinnyboy]

Do you know why the zones feature was taken out?I asked the same question some time back, but didn't receive an answer. But when the Extended Zones feature came along, I presumed that the reason the zones was taken off was to bring them back with more features.