Hello!
I've played in the last couple of days with an idea of having (binary)
'xml-like' streams in Ogg. This would make possible having metadata:
1) be independant on the codec,
2) could be introduced at any time, not just in the header (consider e.g.
while streaming radio statio you want to send the current's program
name / the current song, etc.. with the stream without having to
"restart"
the stream. Subtitles [lyrics for audio files] could use this stream
as well...).
Another use of such a xml-like stream would be hints for players
(like if there would be more language/quality/resolutin variants
multiplexed together in one ogg).
The advantage over simple key-value pair based stream OTOH is that
we can have structured information stored in the stream.
(I've made some simple programs, that take an xml and convert it to
a ogg based xml-like binary stream and vice-versa. You can find it
at http://www.etf.cuni.cz/~tomasek/pub/ogg/xml2ogg.tgz
Just, please, be warned, that these are quite buggy and not that
nice code yet.)
I can write more about the concept, if someone would be interrested.
PT>
--
Petr Tomasek, http://www.etf.cuni.cz/~tomasek/
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