Dissolve & compression problem

[Various]

Hi folks,

I have two clips that I want to dissolve.

One is an avs file that is itself a dissolve of several image files. When I open this in VirtualDub it shows up as uncompressed video.
a=AviSource("file1.avs")

The 2nd is an avi file. I have two versions of it: uncompressed and HuffyUV lossless compressed.
b=AviSource("file2.avi")

I have found that when I do...
c=Dissolve(a,b, 45)

If the b file is the compressed one, the dissolve fails in VirtualDub, which complains of incompatible clips in the dissolve.

If I use the uncompressed avi file, it works.

My question:
How can I make VirtualDub think that the avs file is HuffyUV-compressed?

If I use avi uncompressed file, my disc space will run out...

Thanks.

[IanB]

@Various,

1. It help immensly if you quote the exact error text when asking for help. (click on the messagebox and type Control-C to copy the text to the clipboard)

2. It also help if you include a copy of the exact script you are having a problem with.


Dissolve like most combining filters needs the video format of the 2 clips to be identical.

You can use one of the *ConvertTo... filters to change the pixel format of one clips to match the other.

* ConvertToRGB(), ConvertToYUY2() or ConvertToYV12()


Probably the next problem you may run into is making the FPS exactly the same for both clips, you can useClip1.AssumeFPS(Clip2)to make Clip1 the same as Clip2.

[stickboy]

Why did you start another thread instead of continuing your original thread (http://forum.doom9.org/showthread.php?t=134876) (in which I gave you mostly the same advice as IanB)?

[neuron2]

His a and b clips are delivering different color spaces so they cannot be dissolved together. One must be converted to match.