Hi! I have a DVD with a frame order like this:
1 - A
2 - B
3 - C
4 - D
5 - D
6 - E
7 - F
8 - G
9 - H
10 - H
What is this style referred to as? I was able to get a clean 24 frames using IVTC, using the frame blend option (whatever it was called) using Virtual Dub 2.
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Is it NTSC frame rate?
If so you can set the IVTC filter to
reduce frame rate/auto detect/adaptive
to recover the film underlying film frames -
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NO. IVTC (Inverse telecine) undoes the telecine from the DVD, to leave 4 unique frames followed by a duplicate.
To remove the duplicate yielding the original 24 (23.976) unique frames use "reduce frame rate" as mentioned above.
If you're not sure it's right, provide a 30 second sample showing some movement -
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It depends on how you are viewing it, and how it's being processed. Some hardware or software might be deinterlacing it , for example
What hardware, what software, what configuration, what decoder, what renderer, what settings are being used to view the "ripped" DVD ? Is it a 1:1 rip , or a "copy " of the DVD, or is it not really a "rip", but a re-encode ? -
On typical NTSC DVD's produced from film stock (old Hollywood movies, etc),
without any vdub filters being active you would normally see
3 "clean" frames + 2 with combing. This is the 3/2 pulldown pattern,
4 source film frames become 5 video frames (because of the 29.97 fps NTSC requirement),.
if you enable the IVTC filter but not "reduce frames" you'll see 4 "clean" frames + 1 dup if you step through frame by frame
(The IVTC filter extracts the missing clean frame from the 2 combed frames)
https://en.wikipedia.org/wiki/Three-two_pull_down
EDIT - if your DVD file really has 4 good frames and one dup straight off, then maybe all it needs
is to decimate out the dup frameLast edited by davexnet; 25th Sep 2024 at 19:08.
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