Converting Fields to Frames Question

[SeeMoreDigital]

I would like to convert a "pure interlaced" PAL 720x576 (25fps) 50i field source to 720x576 50 progressive frames.

I have tried various "Deinterlacer" filter options including both of the "Double Frame Rate" options but I'm unable to make it work.

Is VirtualDub (v1.9.2 Build 31953) able to do what I require?

[scharfis_brain]

only if you feed it with field sequential video and some sort of bob-deinterlacer (that I don't rembmer anymore) which accepts field sequential video.

but why do you want to use Virtualdub for this task?
AVISynth filters are far more advanced than those available for Virtualdub.

[Guest]

I'm unable to make it work.
What have you tried and how did it not work?

[SeeMoreDigital]

What have you tried and how did it not work?When I input a pure interlaced PAL (50i) source and select the following options: -

http://i39.tinypic.com/jsklqw.png

VirtualDub generates one motion frame followed by one still frame.

But here's the thing. I input a pure interlaced NTSC (60i) source and select the same options as above. VirtualDub generates two motion frames... ie: it functions perfectly ;)

[Guest]

Post a sample of your PAL source that acts that way.

[SeeMoreDigital]

Here's a short PAL MPEG-2 720x576i@25fps.m2v source: -

http://www.one.seemoredigital.net/Downloads/MPEG-2_720x576i@25.000fps.zip

And here's a short NTSC MPEG-2 720x480i@29.970fps.m2v source: -

http://www.one.seemoredigital.net/Downloads/MPEG-2_720x480i@29.970fps.zip


Cheers

[scharfis_brain]

the PAL-Video simply is phase shifted progressive video.

[SeeMoreDigital]

the PAL-Video simply is phase shifted progressive video.Is it? I must admit I never even considered such an encoding option. How embarrassing :o

I'll have to double-check back at work but I reckon I've been sent quite a few sources like this. What VirtualDub settings do you recommend I use prior to encoding to say, RGB.avi

And to add to my embarrassment.... I've just found some PAL 720x576i "TV captured" sources and I'm happy to report they work perfectly with VirtualDub

[SeeMoreDigital]

What classification would the following MPEG-2 source fall into?

http://www.one.seemoredigital.net/Downloads/MPEG-2_720x576i@25.000fps_Seat.zip


Cheers

[scharfis_brain]

that's the same: phase shifted progressive.

please learn how to identify it yourselves ;)

[SeeMoreDigital]

please learn how to identify it yourselves ;)Yep... I'll certainly have to do that :)

Can you recommend any settings in VirtualDub to process it?

[Guest]

Telecide is a VirtualDub field matcher:

http://neuron2.net/telecide.html

Use it alone, without Decimate.

Also, see Progressive Frame Restorer here:

http://www.geocities.com/siwalters_uk/fnews.html

[SeeMoreDigital]

Many thanks Donald :)