Controlling the gop structure

[arnie.d]

Hi,

I want to re-encode a DVD but I want to keep the gop structure excactly the same as the original. In IfoEdit I can extract the gopstructure and save at as a txt files. It will look like this:

IBBP
IPBBPBBPBB
IBBPBBPBBPBB
IBBPBBPBBPBB
IBBPBBPBBPBB
IBBPBBPBBPBB

or this:

0,I
1,P
2,B
3,B
4,P
5,B
6,B
7,P
8,B

In cce you can only load a chapter file that has this structure:

%TCTYPE
01:00:00:11
01:00:02:21
01:00:03:03

Is there a way to convert the first or the second into the third? Or is there any other way to control the I frames in CCE?

[Mug Funky]

it'd be great to be able to do this, but i don't know of any encoder that can.

also, the only application i can see for it is authoring multiangle discs. in this case, you're probably out of luck because the original will no doubt have too high a max bitrate (needs 8mbps - combined audio + subs as maximum).

if you want to multiangle, you're probably better off encoding the lot at a predictible GOP structure (12, 2b, closed), and ensure they're the exact same length.

[arnie.d]

Tsunami mpeg encoder can do it.

With cce you can select a multi-angle option to keep GOP structure of two encoded files the same.

But I don't want to use it for multi-angle purposes. I want to resize and filter the september Star Wars release. But to keep the original menu (and chapters) I want to keep the GOP structure of the entire movie the same as the original.

[Trahald]

Tsunami mpeg encoder can do it.Yep

With cce you can select a multi-angle option to keep GOP structure of two encoded files the same.the angle option makes the gop structure predictable (by basically making them all the same) but is not intended to mirror a specific structure like the one you have.

tmpgenc is an excellent encoder and if you have a special need like the one you have then you may want to use it in this case.