[vorbis-dev] RFC draft for Vorbis over RTP

[illiminable]

----- Original Message ----- 
From: "Aaron Colwell" <acolwell at real.com>
To: <vorbis-dev at xiph.org>
Sent: Thursday, May 27, 2004 7:29 AM
Subject: Re: [vorbis-dev] RFC draft for Vorbis over RTP

<p>> One solution that could help the codebook administration problem that I
> mentioned is to specify an offset and size with the URL. Then the URL can
just
> be an HTTP url to the source file and the offset and size can allow you to
grab
> the codebook chunk right out of it assuming you are using HTTP 1.1. The
> streaming server will likely know where the codebook is in the file so you
> don't have to worry about keeping the codebook and ogg file in sync with
> eachother. For live streams you can just put the codebook in a file and
use
> a 0 offset.
>
> I'll think about the HTTP solution a little more and see if I can think of
any
> other problems or benefits of this solution.
>

The only problem with the grab a byte offset chunk is that it assumes that
the codebook is a contiguous chunk of data, if it is then it's true a byte
offset and length wouold be able to specificy the packet within the page
framing and pluck it out neatly.

Unfortunately, it is possible for the codebook to extend over multiple
pages, many ogg vorbis files have the codebook spanning over two pages,
which means that the server would actually have to know how to read the ogg
page headers and put together spanning packets.

Zen.

<p>--- >8 ----
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