[Vorbis-dev] Question about the identification header

[Simon OUALID]

Hi,

I'm writing a little API in java that read/write ogg's comments (in the 
comment header), as well as reading the information header. All the 
"read" part is done and is working well, but I am having a little 
problem while coding the "write" part of the API.

In the docs (I use 
http://www.xiph.org/ogg/vorbis/doc/Vorbis_I_spec.html#id4726648), I 
founded everything I want but there is still some bytes in the 
identification header that I can't understand. And I saw (using some app 
to write tags), thats these bytes change when the comments header length 
change, I guess that it is the file length or something, but I can't 
find anything about them in the docs (I'm sure that I just don't found 
the right part...).

Those bytes are located between the end of the identification header 
(after the framing flag bit), and the comment header (at the 0x03, 
following by the 'vorbis' bytes).

How the datas are organised here, what they represent ? Any help would 
be appreciated, I just need to know what I have to write here... :)

Thanks in advance,

Simon