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

I think there may be two separate requirements here.

My proposal is for a `TextTrackCue` (and thereby a `DataCue`) that persists until the end of the media, which is a common use case for WebVMT, i.e. annotate the map and remain visible. In the case of live streaming, the end of media time is unknown and the idea is to allow `Infinity` to represent the end of media time - a simple extension of the [existing HTML standard](
https://www.w3.org/TR/html52/semantics-embedded-content.html#offsets-into-the-media-resource) for `media.duration`. 

This is documented in [w3c/sdw issue #1106](https://github.com/w3c/sdw/issues/1106).  Please note that no update step is required for this solution.

The two-step process you describe may also be valuable, but that requirement and its use cases should be clearly identified. It may also be applicable to WebVMT, but is beyond the scope of my current proposal.

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Received on Friday, 8 March 2019 15:31:46 UTC