question about "disable interlaced"

[hank315]

Have a question about the "disable interlaced" setting in the AVS options.
ATM I'm working on a version of the new HC encoder which can be easily used with RB so I want to use as many as possible of the arguments including the -interlaced flag.
This flag only seems to work if it is set before the preparation.
As an innocent user I did set it after the preparation and ended up with a DVD which was completely DCT field encoded with a source DVD which is progressive.
But I'm absolutely not a RB-expert so I m just wondering if there's a reason for handling the interlaced setting this way?

[Sir Didymus]

Hi Hank315! :)

The prepare phase is used for building up all of the avisynth scripts (the *.avs files) AND the encoding control files (like rebuilder.ecl) in the D2VAVS folder.

So the "disable interlaced" setting should be ticked before the prepare phase, in order to allow the encoder applying the proper settings in the encode step...

Hope it answer your question...

By the way, keep up with your excellent work with HC...

Cheers,
SD

Edit: of course it is still possible to modify these files off-line (manually, or with some thirdy party applications) in order to change the application behaviour...

[hank315]

With HC I'm trying to emulate Quenc input so it will use AVS input but I can't see the difference in the AVS scripts if the interlaced flag is set before preparation or not.
IMHO it should just be a flag which is sent to the encoder and could also be set after the preparation :confused:

[jptheripper]

its probably i difference in the ecl file as opposed to the avs file

[jdobbs]

The PREPARE phase scans the original MPEG stream and records the settings.

That flag get's reset during rebuild, so the encoder's setting will be overwritten anyway. The only reason it is there is because of some PAL movies that are in reality progressive, but for some reason are marked as interlaced.

DVD-RB sets the MPEG stream flags (e.g. rff/tff) as well -- this is necessary to convert the stream back to it's original form (especially for telecined and hybrid streams).