cablelabs/gst-plugins-base — pull request #2 by brendanlong (2013-10-03 20:41:17+00:00)
Title: Add the HTML5 track kind as GST_TAG_TRACK_KIND.

This adds a "kind" tag so we can tell the difference between captions and subtitles.

@lorianderson @s-maynard

The upstream patch isn't getting much attention and Eric thinks this feature is important.

https://bugzilla.gnome.org/show_bug.cgi?id=698853