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Moth3r

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Join date
26-Oct-2004
Last activity
16-Jul-2017
Posts
4,892

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Post
#227257
Topic
Inverse Telecining: Best method for restoring original frame rates
Time
Originally posted by: Doctor M
Thanks for further proving I have no idea what I'm doing. IVTC makes me feel stupid (that's why I usually avoid it.)

a and b need to be chosen manually
Um what? There are five different combinations for a and b. Two of the five will work equally well for normal 3:2 pulldown. To find which values to use, use the ShowFiveVersions script.
Originally posted by: Doctor M
Am I correct that with doubleweave, almost every frame has to be examined and if the pattern shifted you have to add a new line for that section of film?


The source is a laserdisc capture (2 sided).
Unfortunately, for laserdisc captures it might not be a case of choosing values that work through the whole capture. For example, Pulldown(2, 4) might work at the beginning of the file, but at some scene change the pattern may change and Pulldown(0 ,3) is required for a different portion. This is where manual methods start to become tedious, and automatic filters start to look more attractive.

Originally posted by: Doctor M
I also have a second question (yup, even though the first is still hazy to me):
I tried to contact Citizen regarding his upsizing method to hi-def Xvid. Since I'm looking to turn a letterbox source to anamorphic I'm obviously scaling upward. Normally I'd just plug in a lanczos4 filter, but he did such a nice job I was hoping someone knew what he did exactly beyond his vague "multiple resizes with different filters".
Lanczos should be fine for a letterboxed - anamorphic upsizing. I believe Citizen used an implementaion of Edge Directed Interpolation for upscaling to HD resolution. There's a couple of filters mentioned in this Doom9 thread:
http://forum.doom9.org/showthread.php?t=72174
Post
#227135
Topic
Inverse Telecining: Best method for restoring original frame rates
Time
(I moved this thread to technical discussions.)

What's your source?

A DVD source with well-behaved pulldown is probably best handled using the "force film" option in DGIndex.

Any other source, if the pattern is constant, can be IVTCed very quickly by
doubleweave()
pulldown(a,b) # a and b need to be chosen manually.

Strange/inconsistent pulldown patterns may need to be handled by an automatic AVISynth filter such as Decomb or TIVTC, but this method is obviously slower because of the field matching algorithms in use.

You do not need assumefps(23.976), because the 29.97 fps video is decimated by 4/5 during IVTC to get 23.976.
Post
#226234
Topic
HELP! Trying to Extend Jay&SilentBobStrikeBack! HELP!
Time
Originally posted by: DarthBalls1138
OK i'm an idiot I read ADM's guide and I now realize how to do the things I've been asking, but ofcourse this is all too complicated, isn't there one software program that will just take a dvd and take the main movie along with whatever deleted scenes you want and put them as video files and seperate audio files (for each channel) so that you can just cut and paste them to your hearts content without having to wait 20 years for it all to recode everything and lose a lot of precious quality in the process?!?!?!?!?!?!?!
No.
Post
#226232
Topic
Koyaanisqatsi - IRE Fullscreen Version (MORE IMAGE!) (Released)
Time
Strictly, this thread actually infringes on the forum rules - if the IRE version was released on DVD (even if it is now out of print) then it is not a valid preservation project.

However, I would consider that a very limited release direct from Reggio does not count as a full retail release, therefore this thread may stay (I trust Jay will agree).

Just to let you know I'm paying attention!

And of course, anyone downloading this should already own the MGM release.
Post
#224822
Topic
SUSPIRIA with original sountrack in PCM! Duel Layer (Released)
Time
Originally posted by: Matt_Stevens
This is the first fan-edit that I have offered up to the general public.
I re-read this thread again since it was bumped in the last day or so, and unfortunately I don't think this disc qualifies as a fan edit.

I appreciate that an update of the forum rules is overdue, but I'll take this opportunity to post my own thoughts:

A fan edit is an attempt to improve on or alter an existing film by the insertion, deletion or re-ordering of scenes within the movie. It involves the application of artistic license to the material available.

A custom dvd contains a film essentially the same as a retail release, but with differences in technical details such as video format, sound mix, picture quality or subtitles.

It's fine to discuss the creation of custom DVDs, what you changed, why you did it and how you went about it, but I feel that openly offering to distribute such discs is not a good idea for this forum.

I'll send a note to Jay asking him to take a look at this thread.
Post
#224631
Topic
The New Doctor Who
Time
Originally posted by: Moth3r
... The Tenth Planet. Unfortunately, episode 4 has been lost, so it's unlikely to ever be seen again. Eps. 1-3 may be available as bootlegs, but I've not seen them.
My information was way out of date. A "reconstruction" of episode 4 was done by the BBC, and the whole story was released on VHS in 2000. Don't think it had a DVD release, though.
Post
#224391
Topic
addborders() help in avisynth
Time
Assuming the XviD is sized correctly, it should have a 1:1 pixel aspect ratio.

704/384 = 1.83, so it's not far off 1:1.85. (The aspect ratio of XviDs could be out by up to 3% because of the requirement to use mod16 resolutions.)

The second calculation is correct if the AR is supposed to be 1:1.83.
If it is supposed to be 1:1.85, then Lanczos4Resize(720,473).Addborders(0,3,0,4) would be correct.

Personally I would keep it simple and just use Lanczos4Resize(720,480) - because I have a pragmatic "that's close enough" approach to such calculations!