no 2pass in autogk 1.6

[LegdocheinEi]

my autogk 1.6 does only 1pass encoding and I can't find any options to change do 2pass.
any help?

[jggimi]

Hello, and welcome to the forum.

My guess is this is because you have selected a target quality percentage, used only for 1-pass quality based (constant Quantizer) encoding.

Instead, select either a predefined size or a custom size encoding, and AGK will perform 2-pass encoding.

If that's not your root cause, then post a log file.

[LegdocheinEi]

my goal is to receive a divx with ac3-sound and dvd-quality.
therefore I used either

- predefined size = maximum quality
or
- target quality (in percentage) = 100

I also tried it with divx and xvid encoding.
I will give it another try and post the log.

[jggimi]

Those are one-pass options. Perhaps you don't understand the purpose of a two pass encoding? Two passes are only used to produce the best possible quality for a predetermined size. You do not want a predetermined size, so 2-pass encoding isn't necessary for you.

The DivX User Guide (available from www.divx.com/divx) describes these options in great detail, and with great clarity.

[LegdocheinEi]

Originally posted by jggimi

My guess is this is because you have selected a target quality percentage, used only for 1-pass quality based (constant Quantizer) encoding.

Instead, select either a predefined size or a custom size encoding, and AGK will perform 2-pass encoding.
[/B]

yes, you are right. that seems to be the reason.
if I change to predefined file-size it does 2pass.
is max. quality with 1pass really the best quality or is predefined size (2gb for example) with 2pass better?
and is ther any way (or programm) to insert chapter-information into the divx-file?

[jggimi]

...is max. quality with 1pass really the best quality...

The short answer is yes, quality based encoding will beat bitrate based encoding unless the bitrates are high enough to make every frame Q2 (or perhaps Q1 with DivX). In that case, the multiple pass encoding is a waste of time and resources.

I mentioned the DivX User Guide above. It's clear and easy to read, and reading it shouldn't take you very long. It will answer most, if not all of your questions about MPEG-4 encoding, whether in DivX, or XviD, or other MPEG-4 codecs. Here's a direct link to the download page, and its available in four different languages: http://www.divx.com/divx/divxpro/guides/

...and is ther any way (or programm) to insert chapter-information into the divx-file?

It would be easier using GK rather than AGK for this. That's because AGK produces .avi video. I may be wrong, but to the best of my recollection, the AVI container doesn't support chapters.

GK can be used for this purpose, as along with AVI, it can also create Matroska (.mkv) or Ogg Mux (.ogm) videos, which do support chapters. And GK includes a tool in its suite called ChapterXtractor, which can automate the adaption of DVD chapter points into .mkv and .ogm videos.