fps problem

[outcomes]

to bring back the fps
from 29 to 23.976
i ivtc it like this

# IVTC
AssumeTFF()
Telecide(order=1, guide=1)
Decimate(mode=3,threshold=.04)

but i always get jerky playback why?
i get frame losses like its jerky
why is that
am i doing wrong ivtc..I do this ot every source to get the fps from 29 to 23
if this is wrong then how can i brinf back fps from 29 o 23 without giving jerky play back

[manono]

Hi-

First, you don't IVTC PAL material. Second, it has to have been telecined to begin with (a film source originally) and not a 29.97fps video source. Third, you have to make your D2V Project File using Video->Field Operation->Honor Pulldown Flags, and not Forced Film.

And Mode=3 is for a mix of film and video and may not be applicable here.

If none of that helps, then please provide a sample. Use DGIndex and the [ and ] buttons to isolate a small section with movement (10 seconds is plenty), go File->Save Project and Demux Video, upload the resulting M2V to some 3rd party upload site such as MediaFire, and then provide us with the link.

[outcomes]

here it is manono
http://www.sendspace.com/file/f1qfmb

to brink back the fps from 29 to 23 and it gave me jerky play back or you can say frame losses
I used what is bold in black



# Created with Gordian Knot
#
# http://gknot.doom9.org

# PLUGINS
LoadPlugin("C:\PROGRA~1\GORDIA~1\DGMPGDec\DGDecode.dll")
LoadPlugin("C:\PROGRA~1\GORDIA~1\AviSynthPlugins\decomb.dll")
LoadPlugin("C:\Program Files\AviSynth 2.5\plugins\TIVTC.dll")

# SOURCE
mpeg2source()

# IVTC
AssumeTFF()
Telecide(order=1, guide=1)
Decimate(mode=3,threshold=.04)


# CROPPING
crop(6,60,708,356)

# RESIZING
LanczosResize(688,288)


try using the script i used and see how bad the resluts are and how you get a jerky payback
i always have trouble with ivtc..
how can i stop this jerkiness

[CWR03]

try using the script i used and see how bad the resluts are and how you get a jerky payback
Of course it will. IVTC isn't for converting 29.97 to 23.976 frames per second. It is for correcting material that has been telecined. Film isn't usually telecined when it's converted to DVD, therefore forcing IVTC (Inverse telecine) is only going to screw up your video.

I created a .d2v with DGIndex with Field Operation set to "Force Film," encoded it with Gordian Knot and under Field Operation selected "None," and the output is perfect.

[Guest]

Film isn't usually telecined when it's converted to DVD, therefore forcing IVTC (Inverse telecine) is only going to screw up your video. Huh? Of course film is telecined for DVD.

I created a .d2v with DGIndex with Field Operation set to "Force Film," encoded it with Gordian Knot and under Field Operation selected "None," and the output is perfect. If Force Film works, then it is telecined. Force Film is just one method of performing IVTC.

But anyway, the sample posted is not telecined with 3:2 pulldown. It is telecined using frame duplication, i.e., it is progressive with an extra full frame every 4 frames. So it can be processed with just this:

MPEG2Source("E:\tmp\VTS_02_1.demuxed.d2v")
decimate(5)

[manono]

Are you sure, outcomes, that this is from a retail DVD and not something someone has already butchered and that you downloaded somewhere? The reason I ask is if it's the original retail DVD, then the Indian DVD production companies have royally screwed up another one. Isn't this Om Shanti Om, or not?

Anyway, you have a duplicate frame in every 5 frames. Even the source plays with a stutter. Make the D2V Project File using Honor Pulldown Flags and then a simple:

Decimate()

cleans it up nicely. You could do it the way you did in your script, but it's unnecessary and as I suggested earlier, that Mode=3 is the wrong mode and is responsible for the result playing jerky (and blurry).

[Guest]

Missed my post, manono? :)

[manono]

Oops, yes, I missed your edit. I saw your original post, which looked to me as if you were only replying to CWR03 without having downloaded outcomes' sample and I completely missed what you wrote later. At least I agree with your assessment. :) Also, I edited my own reply after trying to figure out what made outcomes' version play jerky. And still didn't notice your edit.

[Guest]

No problem. He won't have to seek a second opinion now. :)

[CWR03]

Huh? Of course film is telecined for DVD.
I see, I mistakenly assumed that if a method that didn't involve IVTC gave a result that played smoothly that it wasn't telecined.

[outcomes]

thanks manono and neuron2
that works and looks very nice
one more thing can we keep this thread open if i have nay more questions later on

btw this movie is not om shanti om and yes this is retail bro:p