Re: [sdw] WebVMT: Review metadata extension mechanism (#1102)

Additional metadata extension is an important feature for syncing sensor data with video, e.g. acceleration for dashcams. It's currently omitted, but mentioned as a [planned feature](http://w3c.github.io/sdw/proposals/geotagging/webvmt/#datasync) in the Editor's Draft.

There should be prescribed terminology for common values, e.g. speed, acceleration, camera direction, etc., and a freeform identifier, e.g. `custom`, for the inclusion of arbitrary data. The aim is to make the data sync both interoperable and extensible, while avoiding collisions.

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Received on Thursday, 22 November 2018 14:20:32 UTC