PDA

View Full Version : Trouble with IVTC and framerate

CraigBjorn
11th January 2007, 07:20
Ok, I know this should be something really basic, but I've read around and I'm still having trouble.
I ripped a DVD with r4r, the d2v said that it was 100% FILM, so I did as the r4r guide said and I changed the Field_Operation from 0 to 1. Then while setting up the avs file with Gordian Knot I chose to do IVTC. I then encoded and muxed. Now I've got a movie at 23.976 fps, but completely out of sync audio.

I know one of those steps was wrong. Could some one quickly tell me which.
thanx.
Blue_MiSfit
11th January 2007, 08:22
You do one or the other, or neither. NEVER both.

Setting force film in DGIndex will remove soft pulldown and return the true 23.976 fps video. Attempting to IVTC this will do all sorts of bad things.

~MiSfit
CraigBjorn
11th January 2007, 10:30
so if I change just field-operation to 1, then I won't need to change the frame rate in the d2v file?
Blue_MiSfit
11th January 2007, 10:46
you shouldn't ever need to change the frame rate in the d2v file.
neuron2
11th January 2007, 19:50
You should set Force Film in DGIndex rather than editing the D2V file. If you want to edit the D2V file, then yes, you need to set the frame rate correctly as well as the field operation.
CraigBjorn
21st February 2007, 05:00
I think I understand, but I'd just like clarify.
The Robot For Rip guide (http://www.doom9.org/r4r-guide.htm) at the bottom says to edit the Field_Operation to make it equal 1 if it's FILM. Should I do that, but then nothing else involving frame rate or IVTC? or simply leave it alone and IVTC with the .avs ?
neuron2
21st February 2007, 07:02
As I said:

"If you want to edit the D2V file, then yes, you need to set the frame rate correctly as well as the field operation."
manono
21st February 2007, 13:14
Change:

Field_Operation=0
Frame_Rate=29970 (30000/1001)

to:

Field_Operation=1
Frame_Rate=23976 (24000/1001)

Not changing both was the cause of your out-of-synch audio. Once you've Forced Film, you no longer need to IVTC.
Sagar
21st February 2007, 13:15
Can any body tell me avisynth scipt is used for scene detetion
can i used it in C/C++ with api
Jack Cox
21st February 2007, 23:52
Can any body tell me avisynth scipt is used for scene detetion
can i used it in C/C++ with api

And that has what to do with DGIndex let alone this thread?