Color issue transcoding avi to mpeg2

[Chilipepa]

Hi guys,
It goes like this, Im building a dvd with DVDit Pro6 with avi movies Ive already edit before. Once my dvd is built the movies in it dont look the same as the ones in avi format. I mean everything is fine but the color of the whole movie, looks like lost saturation of color or got too bright specially in highlights. I thought to myself that could be due to the codec or the way DVDit Pro6 transcodes avi to mpeg, so I tried to do it with TMPGEnc Plus, but I got the same result.
May someone give some light over here? I'd appreciate it.
Txs a lot.

[edDV]

avi isn't a format, it is a container for a format.

So you have provided no information on what the input video is.

GSpot is one program that will identify the format / codec being used.

[Chilipepa]

txs edDV,
Downloaded GSpot and checked out. Under video info says
codec: dvsd
name: DVC/DV Video
Stat: codecs are NOT installed
and other info about length, framerate, resolution etc.
Under file info:
Container: OpenDML(avi v2.0)
File length correct

Hope this will do...;--)

[edDV]

Good, so you are using DV camcorder video. DV uses YUV color space. Black is defined as digital level 16 and white is defined as 235 both on a 0-255 8bit video scale. DVD Mpeg2 uses the same color space and levels.

What I think is happening to your video is it's being reprocessed into RGB space where black is zero and white is 255. Then it is being encoded back to MPeg2 YUV color space with those levels instead of 16-235. This would cause clipping of blacks, low color saturation and overly bright whites.

I don't use either encoder so I can't advise the correct settings for DV input video. Maybe someone else can help.

[Chilipepa]

Hi edDV,
Just a short question, so be pacient with me ...
If my video uses YUV color space what is reprocessing it into RGB space before being encoded to mpeg2? Is DVDit Pro or TMPEGnc doin that?
I got eight avi files, six of them created from scratch with Wax, two of them from exported flash movies. I checked those last two I exported from flash with GSpot and they're using _RGB codec (no codec required, thats what GSpot says) and I aint got any problem with them after encoding to mpeg2.
Guess I'll have to try building the avi files with another codec, if that can be done, and try again...
Txs again