Decomb 4.00 release candidate 5

[Guest]

This is the version I'd like to release. No more last minute features!

This version adds manual overrides for deinterlacing and adds display of Telecide's field matching internals to the 'show' function. Also, an appendix on the theory of operation of Telecide has been added to the help file to aid in interpreting the displayed field matching data.

Please post any problems found here. Thank you.

[stickboy]

Donald,

Boy, that documentation is getting longer and longer. :)

Would it be much trouble to add a table of contents to the top with in-page links to the Telecide, FieldDeinterlace, and Decimate parameter details?

[Guest]

@stickboy

Either you are a mind reader or great minds think alike. Or both. :)

Attached is the help file with contents formatted by Darryl Andrews.

[sh0dan]

I get heavy picture distortions (lines displaced), when using the following scripts (also when using 3.91 version):

avisource("660.avi")
crop(16,16,-16,-16)
fielddeinterlace(blend=false)

Input file is PAL, 720 x 576, YUY2, so the cropped size is 688 x 544. Using 2.06 release, but it happends using older versions of Avisynth too.

If I change blend, or remove it, the picture is ok.

(And please excuse me, if it is a faq - I'm actually a decomb newbie :rolleyes: )

[sh0dan]

attached image, so you can see how bad it is here... (from vdub)
Edit: Simpler script:

colorbars(720,576).converttoyuy2()
crop(16,16,-16,-16)
fielddeinterlace(blend=false)

[Guest]

@sh0dan

Man, I can't believe this bug was never found before!

It's the classic "using width instead of pitch" bug in the interpolate loop of FieldDeinterlace(). I won't approve the attachment as it's large and I know exactly what is happening now.

Look for a fixed version tonight. Thanks for finding this.

EDIT: As a temporary workaround (until tonight) put Crop() after FieldDeinterlace().

Is there a smilie for acute embarrassment?

[Guest]

Oh, my. It's even worse than I thought. :(

FieldDeinterlace() doesn't deinterlace when full=true. Oops.

Please see the "release candidate 6" thread for a version that fixes sh0dan's problem and repairs this bug.