color loss in CCE 2.5

[shinakuma8]

I am pretty much a noob. I don't know much about the advanced topic in encoding so bare with me.

currently, I'm re-encoding mpeg1 into mpeg2. my setup is avisynth 2.5 -> cce 2.5 sp patched with 2.62 matrix. I noticed that the mpeg2 I get lost some color when I compare it to the original mpeg1. the color just isn't as bright as the original. Before, when I used avisynth 2.0 into cce without the matrix patch, I noticed the same color loss. it's noticible both played back on PC and standalone dvd player. can someone shed some light? Is this expected, like the norm when you re-encode, or am I doing something wrong here? any help is appretiated.

[auenf]

thats possibly your luminance setting.

Enf...

[bb]

Originally posted by shinakuma8
my setup is avisynth 2.5 -> cce 2.5 sp patched with 2.62 matrix.
Do you get the color loss with the original matrix, too?

bb

[shinakuma8]

Originally posted by auenf
thats possibly your luminance setting.

sorry, I don't mess around with any of that luminance stuff in my script. All I do is, import source, resize, change framerate, convert to YUY2 colorspace. (a while ago, when I had the same problem, I was doing import source and convolution3d filter, it also resulted in the same color loss problem.)

Originally posted by bb
Do you get the color loss with the original matrix, too?

yes. I got it with the original matrix. maybe it's not even a CCE problem.

here's what I came across through just some random surfing.

http://geocities.com/maussie01au/SVCD_2.html

in which, it mentioned that for DV Type 1, if you use avisynth, it cause a color shift that you have to manually correct. maybe I'm experiencing a similar problem with MPEG1 in avisynth. although I haven't found anything regarding my problem. now I'm not sure if it's a CCE problem, or a AVISYNTH problem or just a crappy DirectShow Filter problem. Maybe I will use MPEGDecoder instead and see if the problem still exist.

[beeebeeebeee]

Open CCE, go to the Options menu>Misc and uncheck "Try decoding in 32-bit RGB format." I had a similar problem a while back and this fixed the colors for me.

[shinakuma8]

doesn't CCE decode in YUY2 if my source feed is YUY2?

[beeebeeebeee]

Who truly knows how accurate CCE is in determining whether an AVI is in YUV2 or RGB format under XP? I mean after switching over from Win98 I found that CCE in XP doesn't act very normal. I assume that CCE 2.5 is not fully XP compatible (that's why they released later versions).

In any case, run a test clip by unchecking RGB and see if that results in normal color. It never hurts to try.

As Hunter says, "It works for me." :)