PAL to NTSC Conversation

[manono]

Which when resized for playback will look something like this:

[Hikmet]

Make happy all people is impossible.

Not if you do it correctly. This time you made it about 2.88:1. And it looks 1:1 to me, rather than 16:9. That's not how the image as stored on the NTSC DVD should look. It should probably look something like this:

Yes, this is "1:1":

"720 x 306" + Black Borders = 720 x 480.


If you want for 4:3;

"720 x 272" + Black Borders = 720 x 480.


If you want for 16:9;

"720 x 362" + Black Borders = 720 x 480.

[jagabo]

Finally!

[Noahtuck]

Finally!

[Hikmet]

Finally!

Problem is invalid use of terms, me and we. We say "Aspect Ratio" for "PAR (Pixel ASpect Ratio)", and say "Aspect Ratio" for "DAR (Display Aspect Ratio)", and cannot understand correctly each other.

[jagabo]

The OP wants to convert from PAL DVD to NTSC DVD. So he's interested in the retaining the correct DAR. He's not interested in square pixel encoding. Since your PAL DVD source is 16:9 DAR, and he presumably would want to make a 16:9 DAR NTSC DVD, all he has to do is resize the 720x576 frame to 720x480. There's no need to crop, resize, then add borders.

Of course, if the source video is interlaced everything changes.

[chef2]

Figured I'd rather bump this than create another 'PAL to NTSC' thread...

What is the best de-interlace method (w/ decent quality and without jitter) for a PAL to NTSC conversion? The PAL dvd's field-order is Top Field and it was captured from a VHS tape.

I also plan on uploading the final output to Youtube. Thanks.

[manono]

What is the best de-interlace method (w/ decent quality and without jitter)...

QTGMC()#for double-rate deinterlacing (aka bobbing)
SelectEven()# to bring it down to single rate

...for a PAL to NTSC conversion?

You're making a DVD from it? Do you want that encoded as progressive too, or is interlaced OK?

[jman98]

Figured I'd rather bump this than create another 'PAL to NTSC' thread...

In the future we'd actually prefer that you just make a new thread. We don't want to turn into another AVS Forum where all the threads run 1000+ posts and it becomes just about impossible to find any useful information any more. One guy started this about a specific problem he faced. It was never intended to become a "from now until the end of time all PAL to NTSC questions must go here" kind of thing.

[jagabo]

And make sure you're video is really interlaced. PAL is often recorded out of phase -- the two fields of each frame come from different film frames rather than from the same film frame. These are easily restored to progressive film frames with TFM(). Or SeparateFields().Trim(1,0).Weave().

[chef2]

Thank you for the suggestions.

@manono - I'm looking to edit/encode the DVD to an h264 file that is ready and playable for Youtube. I normally work with NTSC SD footage (captured from VHS) and render out to 640x480 @ 29.97fps. With this PAL DVD, though, playback and motion is pretty awful.. err, jittery.

@jman98 - will do, thanks

@jagabo - here's a sample of what I'm working with (it's bad, I know):
http://www.sendspace.com/file/ez89pe

[manono]

It's field-blended from an NTSC video source and in a way I don't know how to unblend (or can't be unblended back to NTSC video). I think I'd just deinterlace it. Maybe jagabo or someone else has a better idea.

[jagabo]

I don't see any way to deblend that video either. For interlaced NTSC DVD I'd try something like this:

function SmoothFPS2(clip source, int num, int den)
{ 
   super = MSuper(source, pel=2, hpad=0, vpad=0, rfilter=4)
   backward_1 = MAnalyse(super, chroma=false, isb=true, blksize=16, searchparam=3, plevel=0, search=3, badrange=(-24))
   forward_1 = MAnalyse(super, chroma=false, isb=false, blksize=16, searchparam=3, plevel=0, search=3,  badrange=(-24))
   backward_2 = MRecalculate(super, chroma=false, backward_1, blksize=8, searchparam=1, search=3)
   forward_2 = MRecalculate(super, chroma=false, forward_1, blksize=8, searchparam=1, search=3)
   backward_3 = MRecalculate(super, chroma=false, backward_2, blksize=4, searchparam=0, search=3)
   forward_3 = MRecalculate(super, chroma=false, forward_2, blksize=4, searchparam=0, search=3)
   MBlockFps(source, super, backward_3, forward_3, num, den, mode=0)
}

Mpeg2Source("sample.d2v", CPU=6, Info=3) 
AssumeTFF()
QTGMC(preset="fast")
SmoothFPS2(60000,1001)
BicubicResize(720,480)
SeparateFields()
SelectEvery(4,0,3)
Weave()