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View Full Version : Dirty manual fix for mix source, possible?


jjabba
8th August 2007, 09:43
I have one of them nice mixed source animes with encoded interlaced frames hiding here and there. (:mad:).
I've experimented manually on one of the vobs and sucessfully made a 23.97 fps Mpeg2 with on-the-fly pulldown. (using CCE and pulldown.exe).
This is what I did:


In DGencoder I made a .d2v from the vob "honoring flags". (mixed->29.97 fps)
I them used "tdecimate" in avisyth for a 29.97 -> 23.97 fps recreation with only progressive frames.
I then encoded the 23.97 material with CCE.
Last, I ran it through pulldown to get it back up to "29.97" during playback.

A quick comparison between the original mixed source VOB and my dirty 23.97 pulldown encode showed no differences between frames apart from the last frame missing. 10266 frames played on original, 10265 on my encode, An almost 1:1 correspondece. :)

To my understanding DVDRB always ignores flags making a frame by frame encode and then use the flags from the original file to rebuild the DVD.
Is there a way to inject DVDRB with my own 23.97 pulldown material before the "rebuild" stage, and somehow use the pulldown flags from the encoded file instead from the source, or would this compleatly mess things up?

jdobbs
8th August 2007, 13:39
My recommendation would be to not preprocess the source. Rebuilder is designed to handle what you are describing (hybrid sources) correctly.

jjabba
8th August 2007, 14:02
If it was a clean "mixed" source I would agree. But since some of the frames are combed in the source, there is a clear win in quality to run it through tdecine first.

I tried the compleate first episode just now, the number of encoded frames in my encode is 35100, the way DVDRB would encode it (mixed source), it would be 41260 frames. (A full 29.97 encode would yeald: 43876 frames)

manono
11th August 2007, 10:16
If you want to IVTC your sources, do the job manually or using Big Three. DVD-RB will return it the way it got it. You're barking up the wrong tree. This has already been discussed ad nauseam.