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I reconsider converting 30i footage to 30p inside Premiere. It's not the best tool for deinterlacing. Use outside tools like VirtualDub. Much better results.
It may not be the best, but its acceptable and its faster than Dan's method. (No offense to Dan. If I had more time I'd work on Dan's method.)
I'm more interested in other tweaks within Premiere for best look on a large LCD or Plasma HDTV.
Dark lit scenes pose the most problem. When I adjust them to look good in premiere, the resulting sd dvd looks washed out on the HDTV.
> but its acceptable
I guess that depends on the viewer. I've never found it acceptable even on an SDTV myself.
Besides, using SmartDeintlacer inside VirtualDub is actually faster than realtime. It's worth a look.
Dan, sounds like we need a new script! - sd2dvd - Or do one of your other scripts already do a good job of deinterlacing 480i?
Hi David --
This requires DebugMode FrameServer for PPro, AviSynth 2.5.7 + VirtualDub, of course. If you've downloaded my dv60i2film package, you can use the "helper" deinterlacing function.
1.) Frameserve from Premiere using the DebugMode frameserver in YUY2 mode
2.) Create an AviSynth script called "deinterlacer.avs"
ConditionalSmoothBob(DeintMethod=4, combthresh=3, OutputColorSpace="YUY2")
3.) Open the "deinterlacer.avs" file in VirtualDub and save as an .AVI (preferably with lossless compression).
4.) Stop the frameserver, then import your deinterlaced .AVI file into PPro or Encore and export to DVD.
The other option is to Purchase the FieldsKit deinterlacer plugin for PPro and/or After Effects. It seems to be pretty good, but my solution is also good and free :)
Note: You will need to install the Decomb filter in your AviSynth plugin directory:
I tried Dan's script on a short clip and it seems to do a fine job of deinterlacing.
Thanks again, Dan!
Ooops! Thanks for catching that, David. The dv60i2film package now also includes Decomb. I guess I forgot to include it earlier.
Yes, that deinterlacer is very good. Performance on multi-core/processor machines is not too bad either.
After encoding my deinterlaced test clip to mpeg with HC encoder it looks better than the original on my 52" Sony LCD.
> After encoding my deinterlaced test clip to mpeg with HC encoder it looks better than the original
That's great, David. I'm always glad when my advice is useful :)
HC Encoder rocks... A great freeware app. Just make sure you have the "Reload AviSynth" box checked to avoid frame mistmatches on 2-pass encodes.
For some reason v0.23 crashes on me (sometimes) when the "lossless file" box is checked instead :( Oh well, they fixed some other important things in that release, so I'll live without that option.
Ok, I will check the "Reload AviSynth" box although I have not noticed a problem.
There is one other thing though. HCgui tells me I should use pulldown for DVD compliancy after loading your scipts. Do I need to do this?
Only if it is 24p -- in which case it will add 3:2 pulldown flags.
Ok, I found the following material on Wikipedia that has helped me understand why this is required for 24p.
In the soft-telecined case, the material is stored on the DVD at the film rate (24 or 23.976 frame/s) in the original progressive format, with special flags inserted into the MPEG-2 video stream that instruct the DVD player to repeat certain fields so as to accomplish the required pulldown during playback. Progressive scan DVD players additionally offer output at 480p by using these flags to duplicate frames rather than fields.