[vorbis] Re: Desirable Properties of a Real Metadata Format

[ChristianHJW]

Geoff Shang wrote:
> On Thu, 16 Oct 2003, Nathan I. Sharfi wrote:
>>>You cannot use XML for streamable metadata, at least not without
>>>changing what you mean by XML.  I wish people would please stop bringing
>>>this up.
>>>jack.
>>Evidently I didn't convey 1) that in my mind this would be in one huge lump
>>at the beginning of the stream before the Vorbis/FLAC/Speex/whatever data or
>>2) my nearly boundless naivete (I don't really know how Ogg handles random
>>blobs of what is text or base64'd binary things (I can imagine that would
>>cause quite a few people to cringe...)
>>That said,  why won't it work?
> Oh it will work if what you want is metadata.  But it won't give you
> streamable interleaved metadata, and having it as a big blob at the
> beginning firstly ignores/overlooks a lot of the flexibility contained in
> the OGG format, and secondly may mean a lot of data having to be streamed
> before you get to the content (depending on the amount of metadata).
> I'm guessing the reason it won't work is due to the nature of XML.  You'd
> have to read all the XML data before you could process any of it, because
> the closing tag would be the last piece of data.  

I am not a programmer, but could a binary version of XML be used to 
overcome these limitations maybe : http://sf.net/projects/ebml

Christian
matroska project admin

--- >8 ----
List archives:  http://www.xiph.org/archives/
Ogg project homepage: http://www.xiph.org/ogg/
To unsubscribe from this list, send a message to 'vorbis-request at xiph.org'
containing only the word 'unsubscribe' in the body.  No subject is needed.
Unsubscribe messages sent to the list will be ignored/filtered.