View Full Version : NTSC movie, fps = 29.97, interlaced, what do I do ?
emistral
27th February 2003, 10:26
Hi all,
I live in a PAL country and this is my first NTSC movie to back up
I have backup many PAL movies using CCE/scenarist, etc... without any problem but I have read so many information about NTSC especially the fps that I don't know where to start
If I look at DVD2AVI guide, it says that if the frame rate is 29.97 and and the video type is NTSC then I need to do an IVTC.
Do I have to do it and if so how ?
I have never used Avisynth but always VFAPI
Also what do I have to do with the interlaced frame type?
I have read somewhere on the net that pure NTSC can not be IVTC'd ?
So what I am trying now is using DVD2AVI with field checked to none
If there is anybody out there that could help me, that would be much appreciated (also don't tell me to read the guides because this is what I have been doing for the past 2 hours ):)
Thanks
slk001
27th February 2003, 15:49
What is the movie? It probably was originally FILM, so use FORCE FILM option in DVD2AVI. But always TEST this assumption by creating a .AVS script and running your video through VirtualDub.
If it is truly film (and I suspect that it is), then the above will give you a 23.976fps (24fps) sequence that you can then convert to PAL by your favorite method.
emistral
28th February 2003, 00:25
I played the movie with DVD2AVI for at least 10 minutes and it says it is NTSC, 29.97fps, interlaced
The video type does not switch between film and ntsc but it is constantly NTSC
So what I am doing at the moment is framer serving it with DVD2AVI (with video field set to NONE) and VFAPI and then reconverting it with CCE
I don't want to convert it in PAL because my standalone DVD player can output a PAL signal whatever video standard the DVD is.
So I want to keep the quality
It is sure that converting it to PAL would save lots of problems
MickeyNBK
28th February 2003, 03:00
Personally I would use DoitFast4u. Go there, read the guide, download and install the applications it asks for. Then re-rip the disc using their method. After running it through DoItFast4u it will have examined the video and create a basic Avisynth script for you. If your source is interlaced then Avisynth will compensate for this in the AVS script.
Since you are just starting out, I'd suggest getting Avisynth 2.07 so you won't have to modify your script. CCE 2.50, 2.66 and maybe 2.64 should allow you to pull in the AVS files. Since 2.66 has a modified interface I'd suggest to keep things simple and use 2.50 unless you are already familier with 2.66. If you use a different version of CCE then you will have a few more steps so I'd suggest keeping it simple and use one of those versions.
Open CCE, drop in your AVS file then follow one of the guides for either the Robshot or RobA methods to encode.
http://doitfast4u.doom9.org
More info in this thread: http://forum.doom9.org/showthread.php?s=&threadid=40091&highlight=doitfast4u
slk001
28th February 2003, 16:00
Let me say this again, in case you missed it the first time. Use the FORCE FILM option in DVD2AVI, then TEST the assumption that the film is FILM by creating a .AVS script and running your video through VirtualDub.
Don't use DVD2AVI to view your video - it only shows KEY frames.
What is the name of your film?
gopalkk
1st March 2003, 00:04
I worked on lot of DVD9 which are NTSC Interlaced 29.976
The source for these DVD9 are Film (the movies we see in theatre
but shot in India and I hope Film has not NTSC or PAL).
When I preview in DVD2AVI, they are interlaced but not the whole
picture frame. Interlacing is appearing mostly only in areas where
there is motion.
The question is can I apply Force Film on these?
Force Film gave me skipped frames (jerky video or missing frames)
when I tried a year back.
I might be Stupid, if the Force Film works on these as
I always did Decomb.dll Telecide().Decimate(cycle=5) to recover
progressive frame which looses quality as I did not set post=false.
Anyone expertise in this Interace mode?
TIA
MickeyNBK
1st March 2003, 00:22
Easiest solution would be to use Doitfast4u and Avisynth. Doitfast4u will run your video through DVD2AVI and create an AVS script for your video.
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