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View Full Version : Does anybody know a special filter to "deinterlace" PS2 Games MPEG2 movies?


unplugged
14th April 2002, 19:54
I have demultiplexed some MPEG2 stuff from Gran Turismo 3 (Playstation 2 DVD game) .PSS files, after this process I can obtain pure M2V MPEG2 files but when I play them I see that Sony uses an alternate field-interlacing method:
instead of viewing every frame with both 2 fields classically merged *line-by-line*, the pair of fields are placed *entirely* one on the upper half of frame and the 2nd on the bottom.

Does exist a Virtualdub/Avisynth filter to convert this interlaced frames layer-by-layer to line-by-line???



(tried PowerDVD, DVD2AVI, Avisynth, Xmpeg 4.5... same result... I can imagine that originally the content has been purposefully encoded in this way)

I have uploaded the attachment jpg but I don't see it... :confused:

dividee
14th April 2002, 23:04
Try the following script in avisynth:

LoadPlugin("mpeg2dec.dll")
mpeg2source("clip.d2v")
top = Crop(0,0,width,height/2)
bottom = Crop(0,height/2,width,height/2)
Interleave(top,bottom)
AssumeFieldBased.Weave

unplugged
15th April 2002, 08:27
You are a Monster :p

Big thanx!

Neo Neko
15th April 2002, 21:07
Are the PSS files just MEPG2 or would I need a special software to extract and demux em?

unplugged
16th April 2002, 09:11
Originally posted by Neo Neko
Are the PSS files just MEPG2 or would I need a special software to extract and demux em?

You need to demux PSS first, so you obtain one MPEG2 stream (M2V) and one pseudo-ADPCM (aaaargh!! :( quality a bit poor) audio stream.
You can decode the ADPCM audio track with muzzleflash's tool.

take the right tools at

http://muzzleflash.da.ru (best main tools)
http://www.megagames.com/ps2

Dali Lama
16th April 2002, 20:22
Unplugged I d/l those tools and thats ok. But how do I rip the pss fils from my GTA3 DVD? I see a large gta.vol file? How do I take the pss files from that?

Thanks,

Dali

unplugged
16th April 2002, 22:01
To be honest that .PSS file has been extracted by a my friend that own PS2 console and this DVD game.
I haven't asked him which tools he has used but you can try this attachment.
(I don't have PS2 nor any game)