Guide for PAL users & decomb.dll or not ?

[psmuk]

Hi i have read through the guides on the main website, and believe I have exhausted all options in DoCCE4U, however my Pal Interlaced DVDs are still jerky. Are there any guides available aimed at PAL region DVD's.

Also with interlaced sources, using the decomb.dll or encoding as interlaced? What are the pros and cons of doing this ?? Is the picture the same quality etc ??

Thanks In Advance

[allright]

In 99% of the cases with PAL movies, remember to UNCHECK the top field first option in docce4u, then your movies should be okay.

It sound weird, but always to the oppesite in this field of what doitfast4u suggest .. only with PAL movies.

[influenza]

I always use decomb and deinterlace the extras. Then just encode as being progressive.

The main movie can almost always be encoded as being progressive, even if it's reported as interlaced.

And beware of the field order as allright said. Uncheck the option most of the time

Edit: for pal extras I always use the standard script dif4u creates when checking the deinterlace box. For me the produced quality (unless the bitrate of the extras is set really low) is pretty fine.

[69Mws]

Originally posted by influenza
I always use decomb and deinterlace the extras. Then just encode as being progressive.

The main movie can almost always be encoded as being progressive, even if it's reported as interlaced.

And beware of the field order as allright said. Uncheck the option most of the time

Edit: for pal extras I always use the standard script dif4u creates when checking the deinterlace box. For me the produced quality (unless the bitrate of the extras is set really low) is pretty fine.

What avg bitrate are you using on your extra-stuff? I experienced an avg bitrate of 1850 doesn't look very nice on interlaced PAL material, no matter if I deinterlace or not. I read here somewhere once that interlaced material needs higher bitrate than progressive sources in order to look well, which are my obervations as well.

(BTW: I encoded the extras of "Bowling For Columbine" just for fun at avg 1200 with deinterlacing...it looked awful....you better do not try this at home, kids... :D)

I'd say starting at avg 2000 looks nice on interlaced streams.

Best thing would be like with "The Ring", 'cause there was the extra-stuff (deleted scenes) progressive, which also came out very nice@avg 1850 :)

Greetz
69Mws

[69Mws]

@psmuk:

one con of deinterlacing is surely that it slows down encoding speed a lot :(

Normally I have an encoding speed between 1.7 and 2.0x using CCE 2.66.01.07. With deinterlacing speed drops to ~1.2x on my machine.

Greetz
69Mws

[influenza]

I never go below 2000 for the bitrate on the extras. It all depends on the legth of the main movie and # of extras.

Sometimes it's possible to have the extras at 2600 and the main at 3700. It just all depends.