Problem Converting from mpeg2 to mpeg2 in half D1 (flashing effects)

[noobsaibot]

Hi, I'm converting some mpeg2 source 720x480 29,97 material, to mpeg2 at 352x480 (half D1) using Avisynth and CCE, but the final result has some flashing effects during fast motion areas on the film. But these artifacts can only be seen on the final authored disc (PC monitor or TV w/ standalone player).

This is how I'm doing. I use vobedit and demux the m2v's and the mpa's from the vob set. Then I use DGindex to open these newly created m2v. In preview mode it tells me "ntsc interlaced 29.97" I have DGindex in "honour pulldown flags settings". Then I save the project (d2v file). After all this I use cce with this script:

LoadPlugin("I:\DGMPGDec\DGDecode.dll")
mpeg2source("I:\temp\jaspion\18.d2v")
BilinearResize(352,480)

Inside cce I use a custom template, vbr 2 passes, 29,97. The encoding goes fine, the resulting mpv is playable ok with no artifacts, but after authoring I can see this annoying flashing thing in fast moving areas. Later I tried encoding the same file using tmpgenc xpress, using similiar parameters (output to 352x480, etc and everything else as default) the resulting file is also OK and the authored one DON'T have those flashing artifacts. And since I have something like 50 clips to encode I would like to use cce, cause whereas cce do it in 20 min per file, tmpgenc does in 50min.
Can you help?[/code]

[jimmalenko]

At a guess I would say that TMPGEnc xpress is setting the field order correctly, whereas CCE isn't.

[noobsaibot]

Is it possible to change this field order manually in cce so that I could do a test?

[guns1inger]

Open the configuration page and click on Advanced. Change the offset line from 1 to 0 and encode

[noobsaibot]

Thank you both for pointing out the problem and solving it.

[jimmalenko]

Cool ... good stuff