Strange Result using Scrip in VitualDubMod

[Ensign]

I have been trying to the "Stack Horizontal" in VitualDubMod 1.5.10.2 using the Stack script.

What I want to do is have a video on one side playing as on the other side a slide show video is playing.

Both videos are 352x240 VCD MPEG-1 that I converted (using VitualDubMod) to AVI using the Cinepak codec)

In the past. I had no problems, but, I have come up with two problems that I hope someone can help me with.

The first is that the resulting video is (even in preview mode) upside down and fliped.

This I can fix, but, the second problem is the one that I can't seem to fix.

The resulting video act like it was chromakey. The image from the slide show video superimposed on the first video. Plus there is a lot of pixilated "noise" and even parts that are transparent. Just like one would see on TV when the weatherman does not match the green background.

For a example I have enclosed a still from VitualDubMod to illustrate what a mean.

What can be the problem?

The original videos?

The conversion process?

The software?

Thanks for any help.

[guns1inger]

What happens if you use the original mpeg, or convert it to something lossless instead of cinepack ?

[jagabo]

I was able to partially duplicate your problem using AviSource() and Cinepak. Using DirectShowSource() instead worked fine.

v1 = DirectShowSource("E:\cinepak1.avi")
v2 = DirectShowSource("E:\cinepak2.avi")
return StackHorizontal(v1, v2)

AviSource() and Cinepak just don't seem to get along. Using Lagarith or Xvid worked fine with AviSource().

[Ensign]

By trial and error I have found that if I use uncompressed AVI then the problem goes away.

But, the result is way to big files.

I will try using Xvid or DirectShowSource and see what happens.

BTW

I did try using the orginal MPEG files, but, I kep getting a pop-up saying that either something is missing, or that the "StackHorizontal" command is unknown!

[Cornucopia]

Just about every implementation of Cinepak I've seen has used palettized color (<16bit). This seems like it could be a (bad) interaction between the palettes of the 2 images.

Nobody should be using Cinepak anymore...

Scott

[jagabo]

It even happens when opening a single cinepak file with AVISource(), without stacking. That is, just AviSource("cinepak.avi") returns a messed up picture.

[Ensign]

Just letting everybody know that using Xvid did slove the all the problems that I had with the Stack command.

From now on I will use Xvid when I Stack.

As for why I still use Cinepak

First, it the first codec listed on my codec list

Second, nobody I send files to has the ability to view MPEG-4 type video

Now on to other questions.

But, that's for another forum :P

Thanks for the help