I can't figure this out. DotCrawl? Rainbow Effect? Both?

[Rain_1]

Hi there..

I've been reading forums all day and i can't get rid of this problem..

It's a Broadcast capture of a cartoon (through composite, so bare with me), but i can't get rid of the weavy outlines. I don't know if it's rainbow effect, dotcrawl or what. I guessed it was rainbow effect and dotcrawl (because i usually get both of those lots on animation captures), but using DeDot with higher settings does absolutely nothing.

Here's my avs sample.

LoadPlugin("C:\avs\TomsMoComp.dll")
LoadPlugin("C:\avs\de.dll")
AviSource("D:\capture.avi")
DeDot(20,20,25,5)
TomsMoComp(0,15,1)
Crop(28,2,-14,-2)
Lanczos4Resize(640,480)

i've changed dedot settings down to 0,40,25,5 and it makes zero difference on the outputted file.

Here's a video snippet of it. I'm content with most of it (the deinterlacing and everything). But the damn wavy lines are more than annoying.

http://media.putfile.com/capture-test44

Any more videos/pictures you'd need, just ask here and i'll upload.
If putfile sucks too much for it, could somebody please suggest a better hosting service? :D

Thanks in advance and sorry to ask, but i just can't figure this one out.

[DarkNite]

That's a whole lot of crosstalk there. Have you tried tcomb or bifrost on this source?

[Guest]

Don't capture composite video!

[Rain_1]

Don't be an ass!

[Mug Funky]

umm... probably not a good idea to insult the mods. :rolleyes: remember you're the one asking for help.

if it's analog broadcast then obviously there's no option but to live with composite at least somewhere in the chain. if you've got an s-video output on any of your equipment, then try that and see if that device has a better comb filter than your capture card. often they're all very similar, but it's best to try everything you've got.

but sometimes the artefacts are so bad there's no way to kill them without nuking the actual detail as well. in these cases you're out of luck, but if you've got other equipment you can use, give it a try and see how that works out for you.

[Rain_1]

I obviously don't have an option over composite - if i had, i wouldn't be using it.

I'm trying things with bifrost and i'm getting better results, but i'm still tweaking it a bit. I'll obviously post results later (and probably ask for more help)

[Revgen]

What kind of chipset does your capture card use?

[Rain_1]

I don't know for sure (since my card is a really old Geforce2 TI and i don't feel like popping the hood of this computer again), but from all i gathered (including capture width), it's a SAA7108, or one of the SAA alternates.

[Guest]

Don't be an ass! Please read and follow forum rules, specifically, rule 4. Thank you.
:readrule:

[Revgen]

I was asking because Dscaler is able to access certain chipsets and tweak the chipset's comb filtering settings at the hardware level. You may be able to eliminate the noise your experiencing. The SAA7133 and the SAA7135 are both supported by Dscaler.

I don't know if Dscaler works directly with your card though, you could try it out and see. If you can use it with your card, you should then be able to record using Huffyuv.

[Rain_1]

Hmm.. interesting... the thing is, i don't reall like dscaler that much - and the capture tests i made, it only captures one field (apparently).. yeah, that kinda fixes all problems, but then again, it's only one field.

Also, most of this problem is obviously because of the channel quality it's being broadcasted. I have much much less problems when the source is either a DVD or a videogame console - yes, even on composite.

[Anonymouses]

I have much much less problems when the source is either a DVD or a videogame console - yes, even on composite.

You capture DVDs to your hard drive instead of just straight ripping the mpeg2 files?

[Revgen]

Which version are you using?
The latest version ( 4.1.14 ) captures full interlacing.