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  1. Member flaninacupboard's Avatar
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    Aug 2001
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    Northants, England
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    right, i'm in PAL land, so i never had to go near IVTC before. now i've bought myself some DV equipment, and i'm capturing NTSC laserdsics, which are obviously teleclined. i want to take my 29.97 files, ivtc them to 23.976 then speed up to 25fps and save as a PAL mpeg. the problem is, using the IVTC algorithm in TMPGenc is really slow, about triple the movie length (so a 90 minute movie spends 4.5 HOURS in ivtc!) and i've seen various posts reporting it's not accurate anyway! what methods do people use for this?
    before anyone posts telling me to use force film in dvd2avi, that won't work, as it's an analogue capture not a rip.
    does anyone know of a program that can read the "white flags" on the laserdisc itself for accurate and quick ivtc?
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  2. Member DJRumpy's Avatar
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    Sep 2002
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    Dallas, Texas
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    I often use the pulldown in VirtualDub for this. From the Video menu, select 'Frame Rate', Source Rate: No Change, Frame Rate Decimation: Process All, Inverse Telecine : Adaptive.

    It does a decent job.

    You can also use ShowFiveVersions, DoubleWeave, and Pulldown in AVIsynth, but it's not a good solution for what your doing, as most movies change the 3:2 pattern seemingly at random. You usually need an adaptive filter for it (check the AVISynth docs for explanations of these if you dont' know them alrady).

    I would also search google for adaptive pulldown filters for AVISynth, and Virtualdub. I usually just use the first method I mentioned, but I'm sure there are better methods out there.
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