[gst-devel] GstBuffer metadata
tomasz at grobelny.oswiecenia.net
Mon May 19 22:21:47 CEST 2008
Dnia Monday 19 of May 2008, napisałeś:
> Tomasz Grobelny schrieb:
> > I'm new to GStreamer but I've read a bit of documentation and still have
> > some unanswered questions. Namely: is it possible to associate arbitrary
> > metadata with given GstBuffer? I would like to tag each packet with
> > priority information depending on it's type (for example audio with
> > higher priority and video lower). Then I would use this metadata in
> > different plugin that will transmit GstBuffers to network (eg.
> > dccpsinkserver). The metadata should be ignored if given plugin cannot
> > understand it. Would that be possible? Thanks in advance,
> there is some discussion about exactly that feature on
Hmm... the discussion didn't seem to atract many participants. At least
judging from the list of people who modified the page. And it was started
quite some time ago. Does there exist any timeframe for implementing this
> Maybe you can add your usecase there.
I could and I did. Based on this page I have a few notes:
1. Would such a change be possible in the stable series of GStreamer?
2. "Elements that can use the data need to know the name of the element that
created it." - that seems to be quite a limiting approach. Maybe some kind
of 'metadata type' would suffice?
3. As for invalidating metadata: maybe each 'metadata type' could have a
default merging strategy (append, drop, min, max, etc.)?
BTW, thanks for the link - it gave me the idea of (ab)using offset field for
More information about the gstreamer-devel