[Bug 27116] <track> element is used for more than just "explicit external timed text tracks"

https://www.w3.org/Bugs/Public/show_bug.cgi?id=27116

--- Comment #2 from John Foliot <john@foliot.ca> ---
(In reply to Eric Carlson from comment #1)
> A chapter track certainly is an "external timed text track". The format of a
> chapter track is exactly the same as any other kind of timed text track,
> text samples (cues) with display times and durations. The only difference is
> how the UA renders the text samples.

What about metadata (Tracks intended for use from script)? Is the only metadata
allowed metadata with timing information? Do we have an example that we can
reference in the spec, as this seems, at best ambiguous in its definition.

I ask, because now the MediaStream API is also using @kind to reference both
audio and video
(https://w3c.github.io/mediacapture-main/getusermedia.html#dom-mediastreamtrack-kind),
and the Media Capture and Streams [GETUSERMEDIA] draft infers @kind (as not
checked, because "attribute not checked because stream was created with video
option only." - http://www.w3.org/TR/image-capture/#examples) and so it strikes
me now that @kind as a more global attribute is already being used for
information other than timed text data.

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Received on Saturday, 25 October 2014 00:08:12 UTC