Re: TextTrack API changes

On Fri, Apr 26, 2013 at 4:10 AM, Jerry Smith (WINDOWS) <
jdsmith@microsoft.com> wrote:

>  Silvia;****
>
> ** **
>
> I’ve looked at the specs for TextTrackCue and WebVTTCue.  They are quite
> different.  I’d like to confirm some aspects of this proposed change:****
>
> ** **
>
> **-          **It makes TextTrackCue an abstract interface, but preserves
> the existing TextTrackCue object for compatibility – correct?
>
Not so much for compatibility, but rather to provide a generic interface to
all format-specific TextTrackCue objects that implementers can rely on.


>  Does that suggest TextTrackCue is a base implementation and WebVTTCue a
> proposed variant?’
>
Yes.


> ****
>
> **-          **How will the WebVTTCue affect implementation of the track
> element itself?  The details of it appear to require changes beyond the que
> object itself.  If it does, that does not seem a proper way to evolve a
> standardized element.
>
 I don't understand. There are no other changes FAIK. Can you explain what
you mean?

Thanks,
Silvia.