tool to add skeleton (was Re: [Vorbis-dev] Re: [ogg-dev] Peer review draft for the new)

[Ian Malone]

Ivo Emanuel Gonçalves wrote:
> On 10/19/07, Aaron Colwell <acolwell at real.com> wrote:
>> I'm assuming your referring to the audio/vorbis-config type.
> 
> Yes.
> 
>> Xiph's philosophy of allowing unique
>> codebooks for every encode and Ogg's chaining feature make this necessary.
> 
> I see.
> 
> I wonder; would it be possible to change this behavior on Vorbis RTP
> as it's Oggless?  Or would that make for an impossible implementation
> so drastic would be the change?
> 

This is a codec issue; you would have to specify a subset of Vorbis
to be allowed with fixed codebooks or disallow chaining.  Making a
specific Vorbis subset is pretty drastic.  Disallowing chaining is
apparently part of the Vorbis RTP proposal
<http://wiki.xiph.org/index.php/VorbisRTP>, but you still need to
have the code-books to start decoding (it's just you only need one
set).  I don't know enough about RTP to say the out-of-band
mechanism is needed for that but reading the IETF draft it seems
to be preferred for good reasons (delivery not guaranteed for
RTP streams).

-- 
imalone