[vorbis-dev] Vorbis over RTP - first attempt

[Tor-Einar Jarnbjo]

Hi again,

after the discussion the last few days, I started doing some coding and 
first of all have a first very simple, quick and dirty demo client:

http://www.j-ogg.de/rtp/index.html

During the coding, I've run into a few problems:

- I was planning to replace the identification header with appropriate 
entries in the SDP descriptor. However, the frame sizes are defined here 
(why not in the setup header) and if we'll allow different codebooks 
(and then likely different frame sizes), there must be a way to get 
these together with the new setup header.

- The flags in the audio packets describing the frame length (short or 
long) for the previous and next packets are problematic when handling 
packet loss.

- Streaming CMML as a complete XML document is difficult enough for 
unicast transmission (packet loss handling) and impossible for multicast 
purposes. Would it be a feasible solution to drop the document header 
<?xml...><cmml> and footer </cmml> and demand RTP packets to contain 
separate entities, which may be decoded as standalone XML snippets (e.g. 
just one clip or title element in one RTP packet)?

<p>Tor

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