@Wilbert,
I recently used your filter on a Mpeg2 to Xvid conversion using AviSynth and VDubMod. The difference, to my eyes at least, was remarkable. I have wondered why past encodes were "less bright" than I expected and needed to be adjusted.
I took a look at the AviSynth plugins that come with Gordian Knot. I did not see ColorMatrix among them, which surprised me given the discussion in the current thread and the following threads:
http://forum.doom9.org/showthread.ph...0&pagenumber=3
http://forum.doom9.org/showthread.php?s=&threadid=81191
Does Gordian Knot handle this problem another way or not at all?
Thanks for your work on this! Happy New Year!
North