[Bug 24997] Add "Return values for Text.kind" table

https://www.w3.org/Bugs/Public/show_bug.cgi?id=24997

--- Comment #11 from Bob Lund <b.lund@cablelabs.com> ---
(In reply to Silvia Pfeiffer from comment #9)
> (In reply to Bob Lund from comment #6)
> > For MPEG-4 metadata text track, you've used a list of sample entry codes
> > instead of 'meta' handler type. Beyond, 'mett' and 'metx', I do not know if
> > this list is accurate or not.
> 
> I went through the list at
> https://www.w3.org/community/inbandtracks/wiki/Main_Page#ISOBMFF_2 and
> picked all those that were marked as "TextTrack". This is about how to
> identify that a track is indeed a text track, so if that's wrong, let me
> know what else I should write.

Current text is fine. My mistake - I thought this was related to determination
of metadata kind.

> 
> 
> > For MPEG-2 TS there are many many non-audio/video stream types beyond those
> > explicitly identified as metadata (0x05, 0x80 - 0xff), with no identified
> > use case for exposing them to script.
> 
> If these are not sufficient, can you please let me know how to identify a
> text track of kind @metadata in MPEG-2 TS.

These are fine. I was responding to your question about no default to metadata
in the MPEG-2 case.

> 
> > For MPEG-4, it seems that all metadata tracks would be identified by a
> > handler type of 'meta'. Is there a use case where that is not so?
> 
> That's what the patch says, too.

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Received on Tuesday, 18 March 2014 15:26:38 UTC