Avisynth TMPGEnc color problem

[Baz]

Archived from groups: rec.video.desktop (More info?)

Converting an AVI to mpeg-2 using Avisynth and TMPGEnc.
Colors are reversed red <-> blue.

When same avi us converted without avisynth colors are fine.
If avi is run through VDub and saved uncompressed colors are fine.

Anyone got any clues about this?

 

[Guest]

Archived from groups: rec.video.desktop (More info?)

Baz wrote:
>
> Converting an AVI to mpeg-2 using Avisynth and TMPGEnc.
> Colors are reversed red <-> blue.
>
> When same avi us converted without avisynth colors are fine.
> If avi is run through VDub and saved uncompressed colors are fine.
>
> Anyone got any clues about this?
>
Yes, the U and V channels are probably swapped, use

AviSource(..)
SwapUV()

Wilbert

 

[Baz]

Archived from groups: rec.video.desktop (More info?)

">>
>> Converting an AVI to mpeg-2 using Avisynth and TMPGEnc.
>> Colors are reversed red <-> blue.
>> Anyone got any clues about this?
>>
> Yes, the U and V channels are probably swapped, use
>
> AviSource(..)
> SwapUV()
>
> Wilbert

Bingo!

Thanks Wilbert