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Selur's Little Message Board
[HELP] Movie Trailer - Fix needed - Printable Version

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+--- Thread: [HELP] Movie Trailer - Fix needed (/thread-1926.html)

Pages: 1 2

Movie Trailer - Fix needed - Miranda - 04.08.2021

I've been given a DVD-R, made from an early 1980s PAL VHS dealer tape. To make matters worse, the tape was an NTSC to PAL conversion. The DVD is interlaced, bottom field first. The trailer itself also appears to have baked in interlacing (ghosting on some movement). I believe the trailer also runs at the same speed as the original, so will not require any slowing down.

I need to convert the trailer to progressive 23.976, and hopefully remove the baked in interlacing.

There is no other source for this trailer, unfortuantely.

Is there any way to fix this?

RE: Movie Trailer - Fix needed - Selur - 04.08.2021

Probably not.
You can try to first bob the content, then apply sRestore to 23.976.
If you can send a link to me to a small sample of the source, I can look at it.

Cu Selur

RE: Movie Trailer - Fix needed - Miranda - 04.08.2021

(04.08.2021, 14:14)Selur Wrote: Probably not.
You can try to first bob the content, then apply sRestore to 23.976.
If you can send a link to me to a small sample of the source, I can look at it.

Cu Selur

The source is a trailer compilation, so is a 1.07 GB .VOB file. What is the best way to send a sample?

RE: Movie Trailer - Fix needed - Selur - 04.08.2021

Got no special preference, but GoogleDrive is usually fast.

Cu Selur

RE: Movie Trailer - Fix needed - Miranda - 04.08.2021

Handbrake rip, no filters.

https://drive.google.com/file/d/15ou2ZiLZqk-VzNxalBrZqr6mYo7TTjlr/view?usp=sharing

RE: Movie Trailer - Fix needed - Selur - 04.08.2021

Reencode -> not usefull at all.
You could use mkvtoolnix to cut and split the original and output it as mkv.

Cu Selur

RE: Movie Trailer - Fix needed - Miranda - 04.08.2021

PM sent with link.

RE: Movie Trailer - Fix needed - Selur - 04.08.2021

Okay, since it's 25fps interlaced:
  • keep the scan type as it is
  • enable "Filtering->(De-)Interlace->Telecine->QTGMC Vapoursynth->Bob" (this brings it to 50fps)
  • set "Filtering->(De-)Interlace->Telecine->QTGMC Vapoursynth->Preset" to "Slower"
  • enable "Filtering->Vapoursynth-Frame->Reduction->sRestore"
  • enable "Filtering->Vapoursynth-Frame->Reduction->sRestore->Frate"
  • set "Filtering->Vapoursynth-Frame->Reduction->sRestore->Frate" to "23.976" (this brings it to 23.976fps while only trying to keep no-ghosting frames)
  • optionally set "Filtering->Vapoursynth-Frame->Reduction->sRestore->Speed" to "-25" and try whether adjust the threshold (Thresh) helps if there are scenes with still some ghosting in it.
from there 'normal' filtering is probably the way to go.

Cu Selur

RE: Movie Trailer - Fix needed - Miranda - 04.08.2021

Thanks, I will let you know how it goes.

RE: Movie Trailer - Fix needed - Selur - 04.08.2021

Also check the Vapoursynth Preview when only the bobbing is enabled to see what sRestore is working with, so you don't try to tweak the setitng to archive something that isn't there.

Cu Selur