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View Full Version : Is This A Known Video Pattern?

EpheMeroN
2nd February 2009, 05:50
a,b,a,bb,a,b,a,bb

a = blended / ghosted frame
b = normal frame

The source was taken from a commercial during today's SuperBowl so the source is 1920x1080 @ 29.97fps.

My simple script is the following:

MPEG2Source("C:\Users\User1\Desktop\commercial-01.d2v")
SelectEven()
LanczosResize(720,480)

I'm not sure if there's a way to remove the ghosted / blended frames to make the video 23.976fps or if I just leave as is?
Esurnir
2nd February 2009, 06:09
a,b,a,bb,a,b,a,bb

a = blended / ghosted frame
b = normal frame

The source was taken from a commercial during today's SuperBowl so the source is 1920x1080 @ 29.97fps.

My simple script is the following:

MPEG2Source("C:\Users\User1\Desktop\commercial-01.d2v")
SelectEven()
LanczosResize(720,480)

I'm not sure if there's a way to remove the ghosted / blended frames to make the video 23.976fps or if I just leave as is?

Smell like 3:2 pulldown from afar.

Mind checking in dgindex frame by frame if the interlacing patern look like 3 progressive 2 interlaced 3 progressive ?
stickboy
2nd February 2009, 06:49
Why are you using SelectEven? What's the original pattern?
EpheMeroN
3rd February 2009, 02:26
Why are you using SelectEven? What's the original pattern?
I blame it on having some alcohol in my system last night hehe.

SelectEven() made my video 15fps and completely screwed everything up. The original pattern had the classic pulldown where it went 3 progressive, 2 interlaced, repeat.

The following script gave me nice dvd video @ 23.976 fps:
LoadPlugin("C:\Multimedia\Avisynth 2.5\Plugins\DGDecode.dll")
LoadPlugin("C:\Multimedia\Avisynth 2.5\Plugins\Decomb.dll")

MPEG2Source("C:\Users\User1\Desktop\commercial-01.d2v")

AssumeTFF()

Telecide(guide=1).Decimate(cycle=5)

Spline36Resize(720,480)

Is Spline36Resize a good quality resizer for HD to DVD resizing? I read some users here use that.
Nightshiver
3rd February 2009, 04:10
All depends on what you want. Spline resizers don't give halo's/ringing as much/bad as lanczos does.
EpheMeroN
3rd February 2009, 06:28
All depends on what you want. Spline resizers don't give halo's/ringing as much/bad as lanczos does.
Is this because Lanzcos sharpens much more than a spline resizer does?
Nightshiver
3rd February 2009, 21:20
Not really. Lanczos is a bit sharper than spline36, but hardly noticeable. If you want spline36 to be "sharper", you can increase the taps. Lanczos also doesn't always give ring/halo, depends on the source.