Need help with what seems to be a blended source.

[Chainmax]

Some time ago, I asked for help on solving what seemed to be a slight ghosting issue on one of the chapters of my "Rocko's Modern Life" DVDs. It was eventually decided that it would have taken too much work to implement a solution and it was not worth it.
However, on a different part of the DVD, I have now found some pretty awful blending. Like the ghosting, it is very sporadic, but unlike it it's very noticeable. Here is a 13MB vob sample showng the issue at its worst:

http://www.mediafire.com/?nq3u8cinu13rpdd

Please have a look at it and help me solve or at least mitigate this. Thanks in advance.

[StainlessS]

I suspect that you are using directshow which is producing the blending (via Mpeg2 decoder using
deinterlace), using DGIndex, is definitely combed in (mostly) 3/2 pattern.

[Chainmax]

I can assure you that's not the case. I originally noticed the issue on an intermediate YV12 Lagarith encode, then confirmed it twice: once by playing the scene back in VLC and then by stepping through it in a bare Avisynth script with just DGDecode's MPEG2Source(). I am also pretty sure all windows codecs are disabled and that only ffdshow is decoding all video in my machine.

[StainlessS]

Oh dear, did not mean to fluster you, sorry for my mistake.
My lo-rez eyes still dont see any blending. I do see something that looks like a
variety of compression artefact (ringing or halo, not sure which is which),
maybe I need a better set of eyes. Might help someone else (with a better
set of optics) to ID the problem if you could point it out by frame and area.
What I saw was most prominent at about frame 660, the two maids
headwear, (the spikey bits). Hope you find a solution. :)

EDIT: perhaps some chroma mis-alignment frm 136, upper maids hand rhs.

[Chainmax]

Oh no, you did not fluster me at all, I apologize if that post came up as that. :(

One part where the artifacting I am mentioning is when Rocko is screaming: you can see the parts of the uvula in a darker color that seems to come from the inside of the mouth on previous frames. The roof of Rocko's mouth also has exhibits some ghosting from previous frames in a couple of parts. There are other examples, but those are the most noticeable ones. I'll see about posting screenshots later.

[StainlessS]

Whoops sorry Chainmax, I seem to be commenting on the wrong clip from a different thread.
(It aint just my eyes that are dodgy!).
Aarh, I see my mistake, I have several download options, downloading to different directories
and I was looking at the wrong directory. Now looking into the correct directory, I find
that I have 2 copies of your clip (as I just downloaded again).

[Chainmax]

Here are two consecutive frames from the source:

http://i43.tinypic.com/2ag97ae.png

http://i44.tinypic.com/2dihwt5.png

[Chainmax]

Anybody else?

[Chainmax]

No one? I came to think that this is just a source "feature" that cannot be removed, but I would really appreciate it if one of you guys could download the sample and have a look at it.

[StainlessS]

My humble opiion, (now I'm looking at the correct clip),
not a cats chance in hell. (replace cat with snowball if you like).