poor telecined anime

[axi0n]

Hi, I have here an anime title infamous for it's inconsistent telecine pattern (RahXephon series). It switches hundreds of times per episode. My question is if it is at all possible to ivtc it into progressive somehow, or if I should just use ntsc interlaced in my xvid. I am not on Windows with those advanced tools like Avisynth. I'm using the linux command line. I have tried many filter combinations built into transcode and mplayer/mencoder but nothing seems to give me results without skipping/duplicating frames...offsetting the final stream's audio to an unwatchable state. Thanks for any help.

[jel]

hi axi0n and welcome to the forum!

as you have not received much of a response here in the newbie section, i will move this thread to the avisynth usage forum, where hopefully one of the anime encoding gurus there can help you out.

good luck
j

[Mug Funky]

you could try one of the brute-force IVTC methods.

usually with difficult stuff i just throw Tdeint at it, but TIVTC is probably more suitable (i use tdeint to get double-framerate output, so i can blend it down to PAL if need be and create more IVTC headaches :))

[edit]

oops, should have read more

doesn't mencoder have a brute-force IVTC method as well? it's got several IVTC/decimate filters.

[neuron2]

He said he's on Linux and so can't use Avisynth.

[bill_baroud]

Avisynth doesn't work with WINE ?
(http://forum.doom9.org/archive/index.php/t-75413.html)

[axi0n]

Avisynth doesn't work with WINE ?
(http://forum.doom9.org/archive/index.php/t-75413.html)

No it has problems. Anyway, as I've stated I'm using command line only as I'm writing a shell script. (No X environment on my workstation.)

[axi0n]

I have tried:

pullup,softskip: many duplicate frames
softpulldown,ivtc=1: many duplicate frames

and I've tried the old way of doing things with filmdint, but it drops and dupes frames....and worse of all deinterlaces frames much more often than it should

and I just confirmed all of these methods leave at least some interlaced frames behind :(

[M7S]

Latest version of AviDemux has TDeint filter, but afaik you can't use AviDemux without running X.

Regards,
M7S

[oldcpu]

No it has problems. Anyway, as I've stated I'm using command line only as I'm writing a shell script. (No X environment on my workstation.)
This thread is well above my technical expertise, so I'm reluctant to contribute. Still, I saw this page on deinterlacing, and I offer it up in the hope it might contribute to solving your problem: http://tibit.org/video/

[axi0n]

Thanks all for the help. I have decided to use transcode for this particular series (RahXephon). With transcode I can use the filter combo:

transcode -J ivtc,32detect=force_mode=3,decimate

to inverse telecine what it can...and only deinterlace the interlaced frames that slip through. The only problem I have with transcode is audio sync. Using this filter chain ALWAYS puts the audio way out of sync. To make matters worse, it isn't always fixable either, due to the fact that the number of interlaced frames that slip by but should have otherwise been discarded is random. That means on most encodes the desynchronization is not constant and adding or subtracting an offset will not solve the problem. I would really like to solve this problem because this ivtc method yields the best results (imo) for bad telecined dvd's. I usually use mencoder and have never had ANY desynchronization issues before when ivtc-ing so I'm not really sure what to do here.

Thanks all for the suggestions so far. I especially found the site above, which compares deint methods, interesting.