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View Full Version : HELP Remove pulldown, video pulldown error? hard coded blended frames...


xekon
23rd September 2011, 20:14
I am ripping my Dragon Box Z discs.(I've actually been using handbrakeCLI, but would like to see if I can use Avisynth to fix the problem i got to) The first few discs were fine. When I got to disc 4, the first 5 episodes were fine, but the last episode on disc 4 has this interlace error, the error is not present in the opening song, only in the episode.

EDIT: After looking at the source video frame by frame, I noticed a repeating patern, 2 bad frames, 3 good (In the source video), I did some more reading on interlaced, decomb, and detelecine, after reading this page I am positive it has to do with the pulldown: https://trac.handbrake.fr/wiki/Telecine

I am guessing that it is probably hard coded pulldown, and there is probably an error in the sequence or something that makes it get off track?

The Dragon Box Z discs are a collection of 56 discs. (The first 23 episodes came out perfect with handbrakes automatic pulldown removal, but with episode 24, I see the pulldown/telecine error throughout the entire episode. My guess is that the first ones are fine because handbrake detects the pulldown and automatically remove its, which is why the output framerate was 23.976, but the source video is 29.970)

Episode 24 also went from 29.970 to 23.976 BUT! it still has those frames that are messed up. (So it most likely detected the pulldown but screwed up trying to remove it, My guess is that this is an error in the source footage with the pulldown.)

How can I fix this error, even if it takes a lot of work. I am guessing there are some users on this forum that have ran into this before and know what it is that I need to do.

Here is two of the same frame, the top one is with --detelecine when encoding episode 24, it seems to try and blend the pulldown frame but it still looks garbled. The one below is with --detelecine NOT used(which in handbrake is just standard pulldown removal). Also ALL of the other episodes I did NOT use --detelecine, so I think this is a problem with the Pulldown not being properly removed when it gets to episode 24. (which is probably actually an error with the pulldown in the source video, since all the other episodes turned out great!)

http://sites.google.com/site/jakejsite/broke.jpghttp://sites.google.com/site/jakejsite/b2.jpg

==================================First Set==================================
http://sites.google.com/site/jakejsite/a1.jpg
http://sites.google.com/site/jakejsite/a2.jpg
http://sites.google.com/site/jakejsite/a3.jpg

==================================Second Set==================================
http://sites.google.com/site/jakejsite/b1.jpg
http://sites.google.com/site/jakejsite/b2.jpg
http://sites.google.com/site/jakejsite/b3.jpg

mastrboy
23rd September 2011, 20:46
tfm(slow=2,clip2=nnedi3()).tdecimate(mode=1)

xekon
24th September 2011, 06:26
Thank you for the reply, trying to figure out things then I am going to try that.

EDIT: still trying to get dgdecode to work, will post back once i figure things out.