Virtualdubmod and Virtualdub read same file differently

[mgh]

Versions Virtualdub 1.6.10,Virtualdubmod 1.5.10 Build 2439
The video as read in virtualdubmod is blocky, the same as read in 1.6.10 is not blocky
As loaded in vdubmod
http://img385.imageshack.us/img385/3518/vdubmod9ct.jpg
As loaded in vdub 1610
http://img385.imageshack.us/img385/3217/vdub16105gv.jpg
:confused:

[setarip_old]

Are ALL of your settings under "Options" identical for both?

[mgh]

Both default settings.
Does not happen with all files-only with avisynth scripts using a specific filter on some of the videos.Output color space of all my avisynth scripts with or without that filter is yv12
Problem seen with vdubmod is also encountered with avs2avi 139. Same artefacts are seen in encoded file.

P.S.Problem possibly with older versions of virtualdub-same artefacts seen with vdub 1.5.4 build 16297/release-P4

[setarip_old]

There's an extreme difference of brightness, contrast, gamma, and/or color saturation in the two examples you've posted (Some settings must be different) - so it's really difficult to compare the "blockiness" you indicated...

[mgh]

The input is the same for both and it is the input that i have shown.If you play the video, there are blocks moving all over the place.
In any case why the extreme difference in input with the same file. :confused:

[stephanV]

VirtualDub 1.6 has native YV12 handling. What are you using for VirtualDubMod?

[mgh]

default settings for virtualdubmod. But as I mentioned this happens only with some videos frameserved via avisynth using a specific filter.

[stephanV]

sorry, you misunderstood me :)

i was asking what yv12 "decoder" you use in VirtualDubMod... xvid, helix, something else?

check in file --> file information

[mgh]

Helix in vdubmod

[stephanV]

have you tried to use another one?

[azsd]

try to add a line

ConvertToRGB32(last)

at the end of your avis script to check is it cause by helix as yv12 decoder.