Video Encode to DVD (PAL) displays noise horizontal strippes when h/w acc/tion used

[t610425]

Hello everybody,

This is my 1st post, so here is my info:
Takis from Athens Greece, newbie.

For the last couple of days I try to figure out what is wrong with my DVD encoding.

I try to convert VHS tapes to DVDs. I have already done some (S)VCDs without problems, and since my new DVD burner arrived I figured to use DVDs indtead.

Ha!

I use TMPG+ 2.5 and the project wizard to create the m2v files. In all my inocense I burned my first DVD with IfoEit & Disk Juggler and when I played it to my Stand alone player there are relly heavy horizontal sripes, mainly when the camera pans or tilts. When I say stripes these are thick stripes, (1/10th of the screen each) spliting the screen at three or four depending on the camera movement speed.

I played the disk with PowerDVD with the same results, but with Media Player it shows fine, NO STRIPES.

Then I turned HW Video Acceleration off at PowerDVD and the stripes are gone!

Problem is I can not turn Video acceleration off on my SA player.

Your advice is much appreciated, sorry for the long post.

Takis

[scharfis_brain]

it seems to be Interlaced video, which was resized the wrong way.

please post a screenshot and your exact way from VHS to DVD.

[t610425]

Originally posted by scharfis_brain
it seems to be Interlaced video, which was resized the wrong way.

please post a screenshot and your exact way from VHS to DVD.

That's obviously my case :(

So VHS-> path:
Cpture SVideo via Pinnacle PCTV, using the open bt8xxx driver, that allows full screen capture 720x576 with virtualdub.
Audio 48k
compression picvideo (setting 19)
Reprocess in VD using crop and resize back to 720x576 becubic 0.75 (I think this is where is scrued, I did not check the "Interlaced" flag).

Convert to MPEG2 VBR in TMPG using the wizard. TMPG would suject "Bottom field first" when openning the AVI, which I happily was changing to "Top field first"!!

I tried feeding the original captured file in TMPG and it correctly parses it as "Top field 1st".


So obviously it is the resize process that creates the problem!

Thanks very much for the help!

One more question:

TMPG when parsing the AVI states it as "PAL 4:3 704x576". The file is 720x576. What is the difference between " "PAL 4:3 704x576" and "PAL 4:3 625 lines"?

Tnx again, you made my day!

Takis

[scharfis_brain]

oh, I really know this difference, But I am too lazy in this Monent to try to explain this 704 <-> 720 -thing.

Why do you resize your VHS-capture?
instead of resizing try cropping an then letterboxing at margins of 8 pixels.