[vorbis-dev] Is my understanding accurate?

[Ian Pilcher]

Hi all!

I'm working on a Java program to read the metadata from Ogg Vorbis
files, which means interpretting the Ogg framing.  I'm hoping that some-
one can take a look at the following page and tell me if the overview
I've written is accurate.

     http://home.comcast.net/~i.pilcher/OggSegment.html

Also, since the documentation doesn't specifically state whether the
fields in the page header should be interpretted as signed or unsigned,
is the following correct:

     absolute granule position

         -1 (0xffffffffffffffff) is used to indicate that no packets
         end on a page, but it's not clear whether, for example,
         0x8000000000000000 should be interpretted as a valid positive
         value.  (I'll be the first to admit that this question is almost
         certainly academic, but it would still be nice to know.)

     stream serial number

         Doesn't matter; just a bit pattern.

     page sequence no

         Unsigned?

     page checksum

         Doesn't matter.

Thanks!

-- 
========================================================================
Ian Pilcher                                        i.pilcher at comcast.net
========================================================================

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