Minutes from Media Timed Events call 11 October 2021

Dear all,

The minutes from the Media & Entertainment IG, Media Timed Events call on unbounded cues in WebVTT are available [1].

We discussed:

* The proposed DataCue API [2] matches expected use cases, with 'type' field and 'value' which can be any data structure. There is a need to create a registry of types so that applications can recognise and understand how to interpret different cue schemes, and avoid use of conflicting definitions.

* Consistent cue identifiers between WebVTT documents in segmented media may not be needed. Instead, identifiers of the domain-specific timed metadata objects may be useful. Input is needed from TTWG members.

* Separating the DataCue API proposal from the browser parsing of emsg boxes proposal.

Action items:

* Chris to update the DataCue explainer:
  * Describe the need for a type registry
  * Separate the emsg box parsing proposal
* Chris to follow up with TTWG members on requirements for cue identifiers
* Chris to follow up DASH-IF on scope of emsg ids

Next meeting: 15 November 2021 at 16:00 UTC

Many thanks,

Chris (for the MEIG co-chairs)

[1] https://www.w3.org/2021/10/11-me-minutes.html
[2] https://github.com/WICG/datacue/blob/main/explainer.md