Problems with converting Pal to NTSC with D2SROBA

[huntington]

I am trying to convert a pal avi, to a ntsc dvd using D2SROBA and DVD2svcd. I convert like normal, but have the avisynth script come up during the encode so I can change the parameters. I use the bicubic resize, and change the border size so the ratio equals 720X480. I also put in assumefps(23.976). D2SROBA does its thing and I am left with a muxed file that is 23.976 fps with the sound obviously out of sync. The other file I am left with is Encoded_Video_CCE_PAL.mpv. (why does it say pal instead of NTSC?) D2SROBA fails to initiate the pulldown of the video file. The fps is still 23.976 with both the mpv and the mpg muxed file. The length of this file is off a ton too (i guess because of the fps). I tried to do pulldown manually, but it does a 2:3 pulldown instead of a 3:2 pulldown which really confused me. How do I get it do a 3:2 pulldown? Or am I completely wrong about how to do this. I understand fully how to do the audio with besweet, it is just the pulldown that is really confusing me. I have searched through every topic about this subject, and have found no answers. I hope this isn't a completely stupid question and hope I haven't wasted everyones time, but I have searched to the point of insanity. Thanks a lot.

Huntington.

[huntington]

The video file I am trying to convert is a telecine movie, does this mean that it is interlaced? How does one check to see if it is interlaced video? I fear this is a stupid question, sorry.

Huntington

[Nick]

A telecine is a capture from film reels for TV viewing.
It is also a term used to describe the process of converting a 24fps cine film capture to 29.97fps for NTSC.

Normally to convert from cine film to PAL, you would simply speed up the video and audio by a small percentage and stay progressive. Since the speedup required from 24 to 29.97 would be rather more noticeable, the technique is more involved.

There is a program called Bitrate Viewer (do a google) which tells you if video is progressive or interlaced. Alternatively you can do a preview in D2S. In an interlaced frame, vertical edges will show a combing effect.

As far as your conversion is concerned, DVD2SVCD does not natively support PAL2NTSC conversions. You have to do some legwork yourself. No amount of editing the avisynth script will make DVD2SVCD see what you are trying to do, so the file will still say "PAL" in the filename and Pulldown will not run.

I think it is probably a safe assumption that your file is progressive but check before following the instructions below.

The easiest way I can see is to let the entire process complete.
Then go back and run DGPulldown (http://neuron2.net/dgpulldown/dgpulldown103.zip) on the file, choosing the 25 -> 29.97 option. You will now find a file in your project folder called Encoded_Video_CCE_PAL.pulldown.m2v.
Rename the file "Encoded_Video_CCE_PAL.mpv" to "Encoded_Video_CCE_PAL_old.mpv", then rename the new file of "Encoded_Video_CCE_PAL.pulldown.m2v" back to "Encoded_Video_CCE_PAL.mpv" - ie jig the names so the CCE encoded file is now called something else and the new pulldown file has the same name as the CCE file used to have, therefore replacing it.

Now open the file DVD2SVCD_log.txt and then choose "Run" from the start menu. Copy-and-paste the MPlex commandline into the run box and hit OK. When it finishes, open the DVDAuthor.xml file in Notepad. Where it says PAL, change this for NTSC and resave.

Copy the DVDAuthor commandline from the logfile in the same way to run that and hey presto! One NTSC DVD. If you need an image file, just run the MkIsofs commandline as well.

HTH
Nick