Deinterlace or IVTC transcoder (i.e., without re-encoding)?

[lovelegend]

I have a NTSC DVD and when I played it on media player classic, I would see interlaced pictures. Therefore, I would like to do deinterlacing or IVTC. However, I wanna keep the original video quality, that's why even I know that TMPGEnc has deinterlace and IVTC filters, I don't wanna use it (because it will encode the file)... I also know avisynth may also work but DVDMaestro doesn't take avs files (I need to add subtitles to the DVD, so I must use DVDMaestro)

I am not expert, but as I know deinterlace and IVTC are all about replacing frames and ripping out frames, hence I would like to ask is there any program which can do deinterlace or IVTC without re-encoding the file? :rolleyes:

P.S. My input file is .m2v, and I need my output file be .m2v for feeding DVDMaestro...

[Peter1234]

lovelegend.
It is not possible to deinterlace without re-encoding.

[lovelegend]

then is there any program to determine if a mpg-2 file CBR or VBR, and for VBR it gives you the maximum, average and minimum bitrates?

[Mug Funky]

if your destination is DVD, what need is there to deinterlace? even software DVD players (except those rotten Mac ones) will bob deinterlace on the fly, preserving the original motion data that is captured with interlace scan.

also, with the right directshow filters installed (ffdshow :)), you'll be able to do this with any file that has an "interlaced" flag in it's bitstream.

it is very much a myth that interlacing is a bad thing - it requires some different thinking, and a slightly higher bitrate, but that's all.

with that said, though, i'll be glad when progressive 50/60fps stuff becomes the rule rather than the exception.

[lovelegend]

This is because I can see some combing screens on software players...
maybe the DVD was interlaced badly... :p

[Peter Cheat]

You'll need to find software that can deinterlace through DirectShow (like FFDShow mentioned by Mug Funky). It is not possible to convert interlaced to progressive without reencoding the material because of differences in how interlaced material is treated.

[Mug Funky]

another tip is to not use a mac for viewing DVDs... for whatever reason, they never thought it was worth the bother to include some kind of on-the-fly bob deinterlace, and so if you play back telecined stuff in iDVD, it'll be bloody awful to look at.

all the software players i've seen do deinterlace on playback - winDVD, powerDVD, that crap one that came with "the matrix"...