WOMBLE output MPEG2 file shows as field order TFF /BFF and video “flickers&

[eddytor]

I am editing a video montage in Womble MPEG video wizard (DVD edition)

The womble output file is to be authored onto DVD.

The source clips are all in DVD format. Either VOB files or MPEG (originally created by womble) files.

According to GSPOT, the MPEG-2 source clips are all Interlaced “Top Field First” (showing as TFF)

After editing the montage, when Womble outputs the edited MPEG-2 stream the resulting file shows in GSPOT as I/L (interlaced) and both” TFF (top field first) ” and “BFF (bottom field first”.
SEE SCREEN GRAB FROM G-SPOT.

This seems like an error in the Womble output file?

When this TFF/BFF mpeg-2 file is authored onto DVD and then played back via a set-top DVD player on standard CRT TV set – the resulting image flickers.

Has anyone else come across this problem with womble?

If so – how did you work around it?

Hope you can help.

Thanks,

Pete

[byteguy]

First off, make sure you have Womble's December 2005 release: they say that the fixed a bug where it was setting the field order wrong.

If it is just that your field-order flag is set wrong... you can use Restream to change it back. I talked to ReStream's developer about this and it ONLY changes the flag, it does not re-encode the file.

But, it could be that Womble is taking TFF files and actually trying to encode them as BFF files. This will cause the same kind of nasty flicker. I get that when I use TFF files and let Editstudio output mpg files using its default settings of BFF output. The way around that it so change your output settings to force a TFF file. I don't know how to (or even if you can) do this in Womble.

You run into BIG problems if you have a mix of TFF and BFF source files (what are your VOBs?). Some of the high-end NLEs can deal with this. Editstudio cannot. The only way around that is to use something like the field-switch function in VirtualDubMod to write a new copy of one of the files so that all the orders match. You will know you have this problem if some parts of your final video are clear and other parts have a bad flicker.