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View Full Version : Weird COLOR SPACE CONVERSION issue after Windows REINSTALLATION.

Pentajet
12th May 2009, 04:19
I recently had to reinstall Windows XP and I am experiencing an issue when encoding MPEG2 files with CCE and Pro Coder. The chroma are exhibiting the typical issues that one notices after a bad RGB->YUY2 conversion. Before I reinstalled Windows the encodes used to be perfect. I have checked all my settings in AVISynth, Pro-Coder and CCE and I think all the settings are exactly the same as before.

So...what's wrong? Any ideas?
midnightsun
12th May 2009, 08:51
are you feeding those encoders streams not in the colorspace they natively handle (YUY2 for CCE, not sure about ProCoder) so an RGB<->YUV conversion is needed somewhere and some "default" codec is messing it up behind your back perhaps? Do your scripts deliver RGB? Try giving the encoders YUY2 via avisynth if that's the case and see if the colors are ok.
Pentajet
12th May 2009, 12:47
No. I always make sure to use ConverttoYUY2() at the end of each of my scripts for both CCE and ProCoder (surprisingly it used to work for ProCoder too). I also make sure to avoid using any filter that mess the color space like colormatrix and so on. It used to work fine before I reinstalled. the results have always been perfect. Now everything is messed up :(
GrofLuigi
12th May 2009, 20:25
Maybe you had this (http://forum.doom9.org/showthread.php?t=62566) applied on the old installation (and forgot about it)?

Avisynth - Convert (http://avisynth.org/mediawiki/ConvertToYV12)

GL
Pentajet
26th June 2009, 00:31
I tried everything but can't seem to make it work as it used to... Thanks anyway everyone for the replies.
Didée
26th June 2009, 13:35
Your report is pretty useless. Essentially, we know that you reinstalled Windows, and that now something isn't working as it did before. ("Doctor, I feel ill. Please give me medicine that helps.")

Provide input-vs-result screenshots or samples showing your issue. Also provide details about the workflow. In particular, post your Avisynth script.

Poking in the blue, it could be interlaced content not being treated properly. Or, it could be hundreds of other things.