[mediacapture-main] Provide guidelines to persist capture transition indicators for long enough (#724)

youennf has just created a new issue for https://github.com/w3c/mediacapture-main:

== Provide guidelines to persist capture transition indicators for long enough ==
The spec says:
Any false-to-true transition indicated MUST remain observable for a sufficient time that a reasonably-observant user could become aware of it.

Current implementations seem to limit the observability of the transition if getUserMedia is called and the track got stopped shorter after that
The following fiddle https://jsfiddle.net/6axho8Lj/ shows the current behavior. The faster the camera start up time, the shorter the capture indicator. 

Should we provide more guidelines about what is 'sufficient time'. Mention the case of call getUserMedia then stop the tracks?
3 seconds is already used in the spec: 'the UA SHOULD relinquish the device within 3 seconds'.
Is 3 seconds a good suggestion?

Please view or discuss this issue at https://github.com/w3c/mediacapture-main/issues/724 using your GitHub account


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Received on Thursday, 10 September 2020 09:34:05 UTC