[vorbis] Time for Vorbis File 1.1? (was Vorbis Comment question)

Alejandro G. Belluscio baldusi at uol.com.ar
Wed Mar 5 10:25:19 PST 2003



Hello Benjamin,

Wednesday, March 05, 2003, 2:53:02 PM, you wrote:

>> Do you truly feel there is a need for another format? Tags
>> currently work quite well for me.

Benjamin> I had the impression that the Holy Metadata Format would
Benjamin> allow such things as lyrics/subtitles, etc (as in, show the
Benjamin> metadata stream in sync with the data) or some such. There
Benjamin> is probably only a slight demand for that at the moment, but
Benjamin> it's a case where tags fall short.
  That's because VorbisComment is not used for that. Is for some
"scratch over the CD" info. Someone with knowledge of this necesities
should make a standard. Then you could multiplex it into an ogg file.
An should write a reference routine, too.
  Please note that a Vorbis 1.0 file can't be multiplexed, only
concatenated. So you should wait for a Vorbis 2.0 specification. Or
1.1 and write a proposal yourself changing the multiplex capability
and adding your lyrics/subtitles code. Which if I'm not mistaken is
being made into Theora, but IIRC it's actually a picture of the text,
not text data per se.
  So a Vorbis File 1.1 specification should include:
  - Ogg multiplexing.
  - Lyrics specification.
  - Images thumbnails specification (like embeding and PNG or JPEG
    into an ogg stream, plus some metadata comment).
  - Multiplexed same song/different bitrates version.
  - Sugestions?

Before Monty flames me: I know that should anyone want to make a
proposal he's better writing the code and specifications before making
a formal proposition or any kind of big noise. So take this as just a
small user's survey.

<p>>> What are the limitations of the tag system that make it
>> inappropriate as a metadata format?
Benjamin> The limitations: tags are too embroiled in parsing debates.
Not parsing, since vorbiscomment is shamefully easy to parse. It's
about the scope of the metadata that's in question.


-- 
Best regards,
 Alejandro Belluscio

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