Hybrid DVD

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Re: Hybrid DVD

Postby mirkosp » Wed Feb 06, 2013 2:28 pm

There isn't much more to show... I generally do a lossless for the normal ivtc, a separate script for the ivtc_txt60mc, and put them back together in a final script
Code: Select all
DGDecode_Mpeg2Source("source.d2v")
#ivtc here

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DGDecode_Mpeg2Source("source.d2v")
trim(5773,6526).ivtc_txt60mc(0)

Code: Select all
ep    = AVISource("decimated_source.avi")
txt  = AVISource("text_compensated_scene.avi")
ep.trim(0,1127)+txt+ep.trim(5221,0)
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Re: Hybrid DVD

Postby x265 » Wed Feb 06, 2013 2:43 pm

ivtc_txt60mc(0) << why have you used 0 over here?
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Re: Hybrid DVD

Postby mirkosp » Wed Feb 06, 2013 3:08 pm

mirkosp wrote:For instance, if you trim and the part you apply it on is a cnncc, you'd use ivtc_txt60mc(0) to tell it that pattern (1 for ccnnc, 2 for cccnn, 3 for ncccn, 4 for nnccc ─ going beyond will result in the filter doing a %5, so 5 gets counted as 0, 6 as 1 and so on).
Obviously, if there is a pattern change, you need to make different trims and use it with different values and then put it back together.
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Re: Hybrid DVD

Postby x265 » Thu Feb 07, 2013 9:41 am

How do i find the pattern?
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Re: Hybrid DVD

Postby mirkosp » Thu Feb 07, 2013 1:24 pm

From GizmoTech's YATTA guide that never got finished:
IVTC Patern Matching:

So you're asking yourself, "Well Bludgers, how do I find a pattern in a scene"? There are really 2 easy ways to quickly find pattern. They involved tracking down an "NcccN" pattern.
First Method: Fast action
Identify a point in the scene (perferably near the start) where a hand/arm/body moves. Identify the first point of movement where it N matches, then set the next 3 frames C and hope that the next frame is a N match. Assuming all goes well, you've just identified a NcccN pattern, which, when moving to the next frame and Activating Auto Patern allows you to just play through the rest of the scene confident in knowing you've achived pattern.
Second Method: Mouth Transitions
The more dificult way, is to identify changes in mouth sizes. Alot of mouth transitions are done in frames of 5, which make identifying mouth transitions usually quite fast. Find a change where a mouth goes from big(er) to small(er) (or vice versa) and make sure it is an N match. Set the next 3 frames to C, and then the 4th frame, in theory, should be a N match on a nother transition. Assuming you were lucky and hit a NcccN pattern, you can now activate auto pattern and finish out the scene automatically.

Now an important point of note. In most cases a scene will NOT change pattern from start to finish, however there are rare occasions where the scene will change pattern mid stream.
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Re: Hybrid DVD

Postby Mister Hatt » Fri Feb 08, 2013 11:22 pm

The easiest way really is to find a pan and just try different pulldown() combos for a succession of 5 frames. That's what I do for 1PN clips.
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