Re: [me-media-timed-events] Add recommendation for events with unknown end time (#39)

There are use cases for both, I think. In general I agree with @rjksmith that a new cue beginning has no necessary impact on any other cues, however I also think we may need the semantic of "update the end time of an existing cue"; doing so requires a syntax for signalling, and requires cues to be appropriately identified, which they can be (but in general they probably are not). See https://www.w3.org/TR/html51/semantics-embedded-content.html#cue - the identifier is an arbitrary string.

There is an API to allow selection of "the cue(s) with this identifier": https://www.w3.org/TR/html51/semantics-embedded-content.html#dom-texttrackcuelist-getcuebyid which could potentially be used; it only returns the first result so it would be important to specify usable ids in order to make it work.

So the picture is mixed here: it's possible to do some of what is needed, but there's no syntax, for example in WebVTT, to allow the use case to be signalled. It could only be done with javascript which would have to get notification of the updates through some other mechanism.

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Received on Tuesday, 12 March 2019 20:41:59 UTC