[Bug 698853] HTML5 kind attribute (subtitles, captions, metadata, descriptions, chapters)

[GStreamer (bugzilla.gnome.org)]

https://bugzilla.gnome.org/show_bug.cgi?id=698853
  GStreamer | gstreamer (core) | git

Brendan Long <self> changed:

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--- Comment #41 from Brendan Long <self at brendanlong.com> 2013-10-07 16:16:21 UTC ---
Created an attachment (id=256646)
 View: https://bugzilla.gnome.org/attachment.cgi?id=256646
 Review: https://bugzilla.gnome.org/review?bug=698853&attachment=256646

Add GST_TAG_TRACK_KIND

Here's this part alone.

The more I think about this, the more I think that this is the best solution.
It would be nice if we could restrict the "kind" to valid ones, but it's hard
to say if the HTML5 WG will add more in the future. It would be nice if we
could automatically generate them from other tags. For example, create
GST_TAG_MATROSKA_ROLE, and have gst_tag_get_track_kind() use that if it exists,
but then that function would be pretty complicated and would need to know about
every format ever, which breaks the modularity of GStreamer.

We could add a get_track_kind (type, taglist), where "type" is audio, video or
text, and it could do the check to see if the kind is valid, but I don't think
that's really any simpler for implementers to use.

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