[Bug 25355] Move TextTrack.inBandMetadataTrackDispatchType to DataCue.type, and make it optional

https://www.w3.org/Bugs/Public/show_bug.cgi?id=25355

--- Comment #3 from Brendan Long <self@brendanlong.com> ---
(In reply to Aaron Colwell from comment #1)
> I'm concerned about having type strings exposed here. What is the use case
> where the UA can determine the type, but not actually be able to parse the
> data it is returning? If it understands the type, it seems like it should be
> able to return a type specific cue for it. Something like this amplifies my
> concern that unspeced protocols will be allowed because this is starting to
> look like a "hash map" type interface.

As far as I know, every container format has metadata to say what type of data
a stream contains (stream_type for MPEG-TS, CodecID for Matroska and WebM, Ogg
Skeleton has a mime type). By exposing that data, we can tell JavaScript what
the track contains without knowing how to parse it.

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Received on Wednesday, 16 April 2014 17:06:37 UTC