[Bug 17004] Define a timestamp offset mechanism

https://www.w3.org/Bugs/Public/show_bug.cgi?id=17004

--- Comment #5 from Kevin Streeter <kstreete@adobe.com> 2012-05-24 18:13:22 UTC ---
(In reply to comment #4)

> I wonder if it would be better to handle this with a metadata TextTrack instead
> of something explicitly added to this API. You could add TextTrackCues when you
> append segments of interest. You could hook into the enter & exit events to get
> notified when the timeline enters & exits the cue time range. Would this be
> sufficient?

Using the text track is an interesting idea.  It would be synchronized
properly, and I definitely appreciate the benefit of using an existing
construct.  A couple of questions come to mind:

* How easy is it for the application script to generate a text track on the
fly, in order to insert these events dynamically?

* What is the format of the text track metadata?

* Can there be multiple text tracks, so that the generated one doesn't
interfere with any "real" one that is a part of the content?

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Received on Thursday, 24 May 2012 18:13:27 UTC