[gst-devel] tags and metadata

[David Schleef]

On Wed, Jan 21, 2004 at 09:41:14PM +0100, Thomas Vander Stichele wrote:
> El mi??, 21-01-2004 a las 21:34, David Schleef escribi??:
> 
> > Right now, I suggest leaving streaminfo and metadata combined into
> > the same tag, and the application should assume that everything
> > associated with certain tags (e.g., "codec" or "length") be
> > considered streaminfo, and everything else be considered metadata.
> > That quite closely approximates what we actually want, since "length"
> > in an id3 tag doesn't somehow magically become metadata.
> 
> Sounds like a plan, but ...
> > After 0.8, perhaps we should add this information to the tag registry
> > itself, to indicate the purpose of each tag.
> 
> suppose I could get this done this week, is there any reason we would
> really want to subject ourselves to a lot of pain by waiting for another
> cycle to get this in ?

Add a flags to gst_tag_register() and GstTagInfo, and a retrieval
function.  Seems pretty low-risk.

I suggest GST_TAG_FLAGS_DERIVED for information that was formerly
streaminfo -- indicating that the information is derived from
the stream or other data, instead of being "independent".



dave...