TMPGEnc and Deinterlacing

[boead]

Deinterlacing?

When ripping a DVD, is the source Interlaced or non-interlaced. SmartRip doesn’t say, how do I find out and does it depend on the DVD?

When finally encoding with TMPGEnc It asks for a source type (Interlaced or non-interlaced (progressive). Some guides show this set to ‘non-interlaced (progressive)’ especially with 23fps (force) while others show ‘interlaced’ chosen especially with 29.97fps. Additionally asked for Top or bottom field first?
Can some one explain?

Deinterlacing filter definitely improves image quality by removing interlacing lines. I tried all the varieties and it seems “double’ is softest but shows nearly no lines.
Again, can some one explain the differences?
They are:
Even Field
Even Field (adaptation | animation adaptation | animation adaptation 2)
Odd Field
Odd Field (adaptation | animation adaptation | animation adaptation 2)
Double
Double (adaptation | field | field, adaptation )
Even-Odd Field (Field)
Even-Odd Field (field, adaptation | field, animation adaptation | field, animation adaptation 2)

[Vejita-sama]

Here's the short verison. TV shows are shot at 29.97fps interlaced. You TV can ONLY display 29.97fps interlaced material. Interlaced means that each frame is made of two fields (odd and even) each having 1/2 the lines to be displayed. So you could also call this 60 fields per sec (60fps).

Films are shot at 23.976fps progressive. Progessive = each frame is a still show one after the other.

In orther to play your 23.976fps film source on your 29.97fps TV you need to convert the film source to this format. This is done by a process know as telecide (aka 3:2 pulldown).

So when you use smartripper you'll get VOBs that are 29.97fps (aka a 29.97fps telecided source). This will have interlacing in it. But you can get rid of the interlacing by converting your ripped source back to 23.976fps progress. You can do this w/ DVD2AVI by enabling "force film" or running an inverse telecide (aka IVTC) process. IVTC is very very very slow, force film is fast so do that.

Some DVDs are a mix of progressive, interlaced and 60fps source. So preview it in DVD2AVI, and if it's 90% film or greater use force film. If it's a true progressive source you have two choices:

1) Deinterlace -> VCD
2) Leave alone -> SVCD (MPEG2 supports interlace source)

You know have a progressive source to work with (ie. no interlacing). Remember to use apply the 3:2 pulldown (ie. use TMPGencs VCD_film template) to encode so it can play on your 29.97fps TV.

I skipped a LOT of info/background here. But I think that answers your question.

[boead]

Thanks.

I used the force film' setting on two movies. When I tried to encode them for MPEG2 I could NOT get the audio to sync to the video. The SuperVideoCD (NTSCFilm).mcf sets the source to interlaced and the output to 3:2 pull down. However the size is 480 X 480, why?
If I use it, the image is distorted and again, the audio is out of sync. When using DVD2AVI, 'forced film' is 24.00fps, NOT 23.976fps as it should be. I think this is where the audio sync problem is steaming from.

About a year ago I was successful encoding some Sopranos episodes by using Forced Film and encoding in the same manner you described and all was fine. Since then my system changed from Win9x to Win2k then WinXP and my interest in ripping DVD once again surfaced. The application versions I had then are older then what I recently installed.

[boead]

What about Deinterlacing? Can someone explain the differences?

They are:
Even Field
Even Field (adaptation | animation adaptation | animation adaptation 2)
Odd Field
Odd Field (adaptation | animation adaptation | animation adaptation 2)
Double
Double (adaptation | field | field, adaptation )
Even-Odd Field (Field)
Even-Odd Field (field, adaptation | field, animation adaptation | field, animation adaptation 2)

[Jeomite]

use DVD2AVI v1.76 (stable)... the other ones like v1.82 is not reliable. so use DVD2AVI v1.76 and it will report 23.976fps not 24fps.