KVCD: Colorspace issues
 

Hi,

what is the best colorspace to use (for quallity) for processing and encoding a captured film or dvd rips to mpeg? Can colorspace conversions in avisynth script cause bad quallity in the output?

Holger

You loose something at each colorspace conversion. So the best is to avoid _all_ conversion and work in the colorspace provided by your codec.

Now if you can configure a codec to provide the colorspace you want, the best choice is YV12 (usable only with AVS2.5x) and secondly YUY2.

Thanks, and more questions...

I use the picvideo mjpeg codec to capture from tv. The capture settings in VirtualDub is set to YUY2, so the reading the avi file with AviSynths AVISource command results in a movie in YUY2 colorspace, right?
Is there any way to let avisynth display a clips current colorspace?
Is there any need to convert to YV12 if I want to encode the movie as mpeg-2 for cdr or dvd target? Maybe some of the filters used in the optimal script for avisynth 2.5.2.

Holger

I think these lines wil output you the data you need:

AviSource("xxxxxxx.avi")
Info()