Getting started with deinterlacing

[Comatose]

Hi!

So, I've decided to backup all my DVDs into PS3 compatible H264 and burn them on BR discs, but I'm not sure how to get started on deinterlacing them.

It seems that there are some that are FILM, some that are interlaced (NTSC 23.976 fps), and some that are interlaced and telecined (NTSC 29.97 fps)... or at least, that's what I've been able to learn from filter docs and old tutorials.


The problem is that I'm not sure if 23.976 fps + interlacing artifacts = pure interlaced video, and if 29.97 + interlacing artifacts means it's also been telecined.

I'm also not sure which filters I should use to deinterlace, so I was hoping I could upload a short sample and somebody might explain exactly what this is, how to deal with it, and also tell me about the other kinds of interlacing out there (and also name widely used filters for each kind of interlacing).

The sample I uploaded is at - http://www.mediafire.com/?2didxds1mev - this one is 23.976 fps interlaced.


Thanks :)

[45tripp]

http://www.doom9.org/ivtc-tut.htm

LoadPlugin("C:\Program Files\AviSynth 2.5\dgdecode.dll")
mpeg2Source("blah.demuxed.d2v")
telecide()
decimate(5)

[Comatose]

That seems to be outdated, as it doesn't mention any of tritical's filters which I've been using religiously for anime.

Anyway, I didn't think DGIndex would use Force Film again because I used it before (had another DVD that was 99% FILM), but it did, so I thought this was just interlaced @ 23.976 fps -_-
Loaded the m2v and noticed it's at 29.97 fps o_o

Thanks =p

[Blue_MiSfit]

Interlaced 23.976fps is very uncommon.

It's very common to see content that's actually FILM telecined to 29.97. Have you stepped through the fields frame by frame to figure out what you're REALLY doing instead of hoping the flags are accurate?

~MiSfit

[rebkell]

tfm()
tdecimate()

should work fine on the clip you uploaded, I'm still trying to understand too much to explain anything. :)

[Comatose]

Have you stepped through the fields frame by frame to figure out what you're REALLY doing instead of hoping the flags are accurate?
See, this is the reason for my post... I don't actually know what I should be looking for and what all this really means.

Could you outline a few basic guidelines please?

[Guest]

I don't actually know what I should be looking for and what all this really means. Moving to the Newbies forum.

[fibbingbear]

I'm also not sure which filters I should use to deinterlace


For what it's worth, I like MeGUI's auto-detect for interlacing, and I use Yadif, although the best thing to do would be to test different interlacers for your content and see which one you like the best.

I know Dark_Shikari has said something like, "MCBob + NNEDI is the best, but you may find it... slow" on this forum, and it's on my todo list of de-interlacers to check.