[media-and-entertainment] CfC: Publish Requirements for Media Timed Events as an updated Interest Group Note (#36)

chrisn has just created a new issue for https://github.com/w3c/media-and-entertainment:

== CfC: Publish Requirements for Media Timed Events as an updated Interest Group Note ==
This is a call for consensus to publish the use case and requirements document [1] from the Media Timed Events Task Force as an updated Interest Group Note, following a [decision][2] taken during the Task Force call on Monday 20th April.

I invite review feedback from Interest Group members. All feedback on the current draft is welcome.

Significant changes since [initial publication][3] include:

- Document renamed "Requirements for Media Timed Events"
- Clarified terminology (media timed events vs DOM events, cues, etc)
- Added timing accuracy requirements to each use case
- Added detail to DASH specific events in the "Control messages for media streaming clients" use case
- Added more references to "Subtitle and caption synchronization" use cases
- Added "Media stream with video and synchronized graphics" use case, and merged with the "Media analysis visualization" use case
- Added "Live event coverage" use case
- Added detail on HLS timed metadata support
- Updated references to the latest related MPEG standards
- Corrected description of "time marches on" steps
- Added recommendation for cues with unbounded duration
- Added recommendation to allow updates to media timed event information

So far, this work has produced the following outcomes:

- Started incubation work on [DataCue API][4] in the Web Platform Incubator Community Group (WICG)
- An active collaboration with the [DASH-IF Event TF][5] on DataCue
- A [proposal][6] to improve TextTrackCue event synchronization in HTML, and [implementation work in Chromium][7]
- A [proposed change][8] to the TextTrackCue API to allow for events with unbounded duration

Please respond before the end of Wednesday 6th May.

Positive responses are encouraged (e.g., as a "thumbs-up" on this GitHub issue), silence will be taken as consent. If you disagree with publishing at this stage, please leave a comment to indicate your rationale.

[1]: https://w3c.github.io/me-media-timed-events/
[2]: https://lists.w3.org/Archives/Public/public-web-and-tv/2020Apr/0028.html
[3]: https://www.w3.org/TR/2019/NOTE-media-timed-events-20190516/
[4]: https://github.com/wicg/datacue
[5]: https://github.com/Dash-Industry-Forum/Events
[6]: https://github.com/whatwg/html/issues/5306
[7]: https://bugs.chromium.org/p/chromium/issues/detail?id=576310
[8]: https://github.com/whatwg/html/issues/5297

Please view or discuss this issue at https://github.com/w3c/media-and-entertainment/issues/36 using your GitHub account

Received on Wednesday, 22 April 2020 12:36:16 UTC