[vorbis-dev] RFC draft for Vorbis over RTP
giles at xiph.org
Wed May 26 16:06:14 PDT 2004
On Wed, May 26, 2004 at 11:02:00AM +0200, Jack Moffitt wrote:
> Why don't we just say that for transmission of RTP, a single set of
> codecs valid for the entire transmission is required?
This certainly simplifies things in practice with in-band headers
or header request over http. Seems a bit of a wash if there's a separate
Outside of using a separate metadata stream (which would need to be
separate from the header stream, really. otherwise how do you know when
it's changed?) I think allowing in-band comment packets anywhere in the
rtp stream makes a lot of sense. The only reason we don't allow this in
Ogg Vorbis is seeking, which isn't relevent to RTP. You can easily
retransmit without adding much to the bitrate, and it's the one bit of
info you can't reasonably cache. Furthermore, it's much simpler for
clients if than having to support a separate access method just to
change the current artist/title.
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