B&W capture

[Tsphere]

Hi,
I got an old Marx Brothers film and I want to capture it.
Since I'm using WDM drivers with my Geforce, I'll probably have to use VirtualVCR for the capture.

My question is wether or not there is a way to reduce the filesize at capture, since it doesn't need to capture Chroma. Note that I can't use huffyuv since I lack HD space.

From a search in the forum I found there is a way to serve greyscale using Avisynth (possible to use with VirtualVCR?), or to encode greyscale using Xvid.
Since I want to encode first in lossless (or near lossless) quality, but still capitalize on the chroma-less input, I want to know what is my best option.

Thanks,
Tsphere

[scharfis_brain]

when setting up your capturing preferences, like resolutiion and framerate you can also set the preferred colorspace
(commonly YUY).

Set your Colorspace to Greyscale (or whatever it is called)

[Arachnotron]

Isn't Y8 greyscale?
Of course, finding a driver that let's you use it is another thing. And then finding a codec that can handle Y8 colorspace...

[theeht]

In my (brief) experience, I find that as long as you set your saturation to 0 (i.e. no color), you will get better compression when capturing. So, that's something.

As for encoding, you can include in your Avisynth script

Greyscale()

Though I don't know if that's really necessary if you've captured with 0 saturation.

By the way. I learned about the Avisynth greyscale function by searching these forums.