Handbrake: Deinterlacing

[chewbacalips]

Would you guys recommend using deinterlace on Handbrake? If so, what settings on Handbrake would you recommend? Fast, slow, slower?

If I'm not mistaken, the actual footage on my DVDs is interlaced (i.e., it's not the TV that's playing it with interlacing, it's the way the video was manufactured).

[manono]

Would you guys recommend using deinterlace on Handbrake? If so, what settings on Handbrake would you recommend? Fast, slow, slower?
No one's going to recommend anything without a sample. What if someone recommends a deinterlacer and deinterlacing isn't required?
If I'm not mistaken, the actual footage on my DVDs is interlaced
How have you determined this? Like I said, provide a sample. 10 seconds with steady movement will be plenty.

[chewbacalips]

Hi. Thanks for the reply. I don't know how to provide a sample unfortunately. I'm not only new to Handbrake, I'm new to Mac.

Anyway, I'm looking at ripping my Simpsons DVD of Season 9. Watching them in VLC, I can see interlacing pretty frequently.

In my initial question, I suppose I'm looking for the pros and cons of using the deinterlacer. I know using it will slow down the processing, but will it reduce picture quality?

[manono]

If it's the Simpsons my guess is all it needs is an IVTC. I don't use Handbrake and that guy dreams up new names for everything so I have no idea what he calls an IVTC. Read the guide or wait for someone to come along that knows about that program. In any event, a straight deinterlace, no matter which one you choose, would be about the worst thing you could do to the episodes.

And if you're on a Mac, there aren't too many people around here that use one. Using a Mac for the kind of work many here are interested in is like trying to box with one hand tied behind your back. You might have better luck at the Mac Forum over at Videohelp.com which is more active than the one here.

[manolito]

I don't use Handbrake and that guy dreams up new names for everything so I have no idea what he calls an IVTC.

He (better: They) call(s) it 'Detelecine', and to me this makes at least as much sense as 'IVTC'.

Handbrake actually uses a quite advanced algo to do this. If you set the target framerate 'Same as source' then the result will be a VFR file if the source is a combination of hard and soft telecined content.

Have a look here:
https://trac.handbrake.fr/wiki/Telecine#detelecine


Cheers
manolito

[manono]

Why reinvent the wheel? It's been known as IVTC (and InVerse TeleCine makes perfect sense) way longer than handbrake has been around. And he/they also have the utter gall to rip off the Decomb name for some sort of deinterlacing. And TIVTC can also create VFR encodes should the source be some sort of a hybrid.

But if you can help the OP with his handbrake settings, then good. Try and discourage him from just deinterlacing The Simpsons.

[GodofaGap]

HandBrake uses a detelecine filter called pullup (because it's the opposite of pulldown). It's a very advanced inverse telecine filter from the MPlayer project.

Hihi. :devil: