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Re: [me-media-timed-events] DataCue or a more specific API for DASH and emsg events

From: Chris Needham via GitHub <sysbot+gh@w3.org>
Date: Fri, 15 Jun 2018 20:38:21 +0000
To: public-web-and-tv@w3.org
Message-ID: <issue_comment.created-397735545-1529095101-sysbot+gh@w3.org>
I agree with Mark, the next step for this is to raise the topic in WICG.

This discussion has gone slightly further than I anticipated, the intent behind my original question was to simply determine whether our ask is for `DataCue` or something more specific to `emsg`.

Thank you everyone for your input here. I'll summarise requirements:

* The API must expose `emsg` events to Web applications, and include all fields, including `schema`, `value`, and `message_data`
* The API must allow Web applications to create such events (to allow handling of events in the MPD)
* The API must trigger events at the right point in the media timeline during media playback

Whether the appropriate solution is to expose via an `EMSGCue` or `VTTCue` or other API is best discussed with implementer input, so let's do that in WICG.

The one requirements-level question that I would like to ask before we move the discussion to WICG is: Exactly why is a native API needed, and can the same effect not be achieved through application level script?



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Received on Friday, 15 June 2018 20:38:24 UTC

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