View Full Version : Wavy Lines from Interlaced source
sh03z
10th May 2004, 23:31
Hello,
I have a DVD I am backing up, and whatever I try, I can't figure out how to encode it.
I tried the following settings:
(CCE 2.67)
Video:
Add sequence end code checked
GOP sequence 3-4
Lum. Level 16-235
Offset line 0
Quality:
Block scanning order alternate
Intra block DC precision 10
Quantizer Characteristics 16
as a 2 pass multipass VBR
My problem is, instead of the DVD/TV deinterlacing all the lines, they show up as little waves on the screen.
Any suggestions?
I've tried it one 3 TV/DVD players.
Thanks
sh03z
11th May 2004, 19:22
anybody able to help me?
DDogg
11th May 2004, 20:26
Well, "I have a DVD I am backing up" - you did not give very much information about the source to allow people to make a comment. What did dvd2avi report? film, hybrid, interlaced, what? TFF or BFF? From your CCE settings it seems to be interlaced? What bitrate did you use in CCE? My goodness we don't even know if Pal or ntsc :) /add: OK, I can see from title of post it is interlaced.
1> If it is interlaced, first add 'AssumeTFF().SeparateFields()' to the bottom of a standard script using nothing but the mpeg2source line. Drag in to VDub and advance a frame at a time until you notice if a arm waving or something like that progresses forward each frame or goes forward and then backward and then forward. If so you have BFF source and CCE would need to be set properly. See CCE FAQ.
sh03z
11th May 2004, 22:12
it is interlaced DVD,tff, 4:3 full screen, NTSC
I used a VBR of 4500-5500-7000
DDogg
11th May 2004, 22:24
You did the check above to verify TFF? You can't depend on dvd2avi to tell you. Loading the avs in the tmpg wizard is also reliable, at least I'm pretty sure it is.
sh03z
11th May 2004, 22:39
it's definatly TFF, I just tested it again
when I choose BFF, that's when It goes back/forth
sh03z
12th May 2004, 05:17
DDog, next time you look at this post again:
Here is some more information:
I encoded a interlaced movie onto DVD-R about a month ago.
It plays fine on everything.
So, I "tweaked" some settings in CCE, and now it seems I can't find the old settings that worked for me.
The "new" settings produce DVDs that have wavy and distorted pictures.
Here was my avs script for the very first one, that came out great:
---------
LoadPlugin("somewhere\MPEG2Dec3dg.dll")
LoadPlugin("somewhere\ChromaShift.dll")
avisource("somename.avi")
ChromaShift(C=-6)
BicubicResize(720,480,0,0.75)
Tweak(Bright=30)
---------
joshyg2
12th May 2004, 05:54
just a suggestion, if you are resizing a Interlaced source, if you are resizing the vertical different than the source, eg. changing x480 to x576 or something like that, you sould use the following in your script:
separatefields()
BicubicResize(720,240,0,0.75)
weave()
instead of using just:
BicubicResize(720,480,0,0.75)
sh03z
12th May 2004, 06:11
@joshyg2:
Hrm, I think you found my problem.
After looking over all my scripts,
the ones that were "wavy" all had borders added.
I tested this theory in XVCDs on my DVD player and here's what happened:
I made 3 XVCDs.
the first one had a telecided version of the source, with borders added.
the second had the source without any filters with borders added.
the third one had the source without any filters or borders added.
it was the third one that looked the best. it still had some lines in it, but i suppose I should try a full DVD before I make a judgement.
Thank you very much, I think I'm headed in the right direction.
sh03z
12th May 2004, 21:09
Ahh, the odd resizing was my source of the wavy lines.
Thank you very much joshyg2 & DDog, problem solved.
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