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Old 13th July 2014, 17:53   #1  |  Link
trumpet205
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Should I deinterlace MBAFF at double frame rate?

As titled. I understand why one would want to deinterlace at double frame rate if the material was shot as interlace to begin with.

What about MBAFF though? My understanding is that it starts with progressive source then selectively interlace some macroblocks on each frame. Does it still make sense to do double frame rate here (29.97i to 59.94p)?
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Old 13th July 2014, 18:19   #2  |  Link
videoh
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MBAFF is just a coding efficiency; it's the content that matters. If the content is interlaced, you can still benefit from double rate deinterlacing.
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Old 13th July 2014, 20:30   #3  |  Link
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Are you able to provide a short sample from your source?
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Old 18th July 2014, 06:09   #4  |  Link
trumpet205
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Here it is, a 10 seconds clip.
https://www.dropbox.com/s/pbmojtc2zwo1q55/clip2.mkv

I wonder if it is worth my effort to use qtgmc. In the past I used Handbrake to decomb the video before using MeGUI to finish the encode (although at the same frame rate; e.g. 29.97i to 29.97p).
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Old 18th July 2014, 21:32   #5  |  Link
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That looks like pure interlaced to me, with blended fields too. I would deinterlace to 59.94p. I didn't test it but QTGMC would be my first try.
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Old 18th July 2014, 22:54   #6  |  Link
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Hard to tell exactly what's up with that clip, but being blended so much, QTGMC would likely be a waste of time. SRestore would be my starting point, but I'd need a much longer clip or one with much more motion to figure out with what parameters. That clip has too little movement. It looks like on some parts of it, every field is merged with the next field, and on other parts, every other field is good but some of the counterparts are a blend of the next+previous, like they were dropped and recreated. Strange editing.
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Old 20th July 2014, 07:39   #7  |  Link
trumpet205
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Well, it is a live concert Blu-ray. I uploaded five more short clips cut at various point of the video.

https://www.dropbox.com/s/7xl2pa333i5b7fy/clip3.mkv
https://www.dropbox.com/s/wv9ligd7giiop9d/clip4.mkv
https://www.dropbox.com/s/oqm9kvd6qn7157s/clip5.mkv
https://www.dropbox.com/s/391jxhr4zmc9s6r/clip6.mkv
https://www.dropbox.com/s/jxq3yrlww6n2phy/clip7.mkv

Not sure if they are fast enough.
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Old 20th July 2014, 10:31   #8  |  Link
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Sorting out the 'live action' parts of the video looks straight forward enough...

But the holographic anime was most probably created at a much higher frequency than the camera used to capture the live action!
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Old 22nd July 2014, 06:52   #9  |  Link
trumpet205
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BTW what does it mean to been blended so much?

The video in question is Blu-ray release of Hatsune Miku Live Party 2013 in Kansai, in case anyone wonders.
http://www.amazon.com/Hatsune-Party-.../dp/B00CHJG4ES

Last edited by trumpet205; 22nd July 2014 at 06:55.
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