Avisynth script help jaggies

[Stevie Hyper]

Hay guys last year I purchased a Hauppauge HD PVR and started capturing mma\ufc content off sky hd for use to view on my hard drive. I then decided it was about time to start shrinking the large files down to more manageable sizes. After spending what seems to an a life time of trying and testing Iv now come to a problem I cant seem to find a fix to. I seem to be getting a lot of "jaggies" on the edges of straight lines and moving objects. I use avisynth in megui for my encodes with the script -

AVCSource("C:\Users\Samsung\Videos\Krause v Varner.dga")



separatefields()

Spline64Resize(1280,360) # Spline64 (Sharp)

assumefieldbased().weave()
telecide
santiag()

I was wondering if any of you guys know how to clean and sharpen the edges as everything I seem to do only reduces the quality further?
Thanks in advance guys

[hello_hello]

What's the logic behind resizing after separatefields()? I can't say I've tried it that way myself but does inverse telecine followed by resizing produce a better result?

Doesn't telecide() simply recover progressive frames from telecined video? Are you trying to inverse telecine, ie going from 50.94fps interlaced to 23.976fps progressive, or is the video purely interlaced? If you're removing the telecine, what happens when you let MeGUI analyse the video and add the de-interlacing in the script creator? For inverse telecine:

LoadPlugin("C:\Program Files\MeGUI\tools\avisynth_plugin\Decomb.dll")
Telecide(guide=1).Decimate(mode=3,threshold=2.0)

Spline64Resize(1280,720)

Or try the IVTC filter instead of the Decomb filter:

LoadPlugin("C:\Program Files\MeGUI\tools\avisynth_plugin\TIVTC.dll")
tfm(order=-1).tdecimate(hybrid=1)

Spline64Resize(1280,720)

If the video in question is purely interlaced and the desired output fame rate would be 29.970fps or 25fps etc, Yadif is a good choice from MeGUI's de-interlacing options, but you can't beat QTGMC for quality. It's very slow though.
http://avisynth.nl/index.php/QTGMC
http://forum.doom9.org/showthread.php?t=156028
Or use MeGUI's Yadif with Bob option to output 59.94fps or 50fps progressive video. It'll look much smoother. QTGMC de-interlaces that way by default.

I just noticed you're in England which probably means you're working with 25fps video and you just want normal de-interlacing (Yadif with Bob or QTGMC). Removing pulldown (telecine) is mostly an NTSC problem. Sometimes though, film is converted to PAL's 25fps frame rate using pulldown. Mostly it's just sped up though and the video will either be interlaced or progressive.

If it's progressive video encoded as interlaced, then field matching and resizing might be a better choice than de-interlacing, but once again I'm not sure why you wouldn't just apply the progressive frame recovery and then resize.

LoadPlugin("C:\Program Files\MeGUI\tools\avisynth_plugin\TIVTC.dll")
tfm() # or use telecide() instead.

Spline64Resize(1280, 720)

[jagabo]

For truly interlaced video, like live sports or news, deinterlace first, then resize.