Support for iOS devices and Safari on MacOS for live camera feed (needs new Capture code to be integrated)

[waridrox]

Please describe the desired behavior.

• Currently on (iOS 14/ iPadOS) in safari or chrome browser, the live camera feed cannot be loaded both on https://spectralworkbench.org/capture or on localhost:8080/examples/capture/. This means that iOS users are out of luck since these popular browsers can't support the live feed.

• On safari for MacOS there's a different scenario observed where on localhost, live feed does load after prompting for camera access. But at https://spectralworkbench.org/capture it doesn't.

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Additional context (optional)

Tested on iPhone simulator 1 at localhost

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Tested on iPhone simulator 2 at https://spectralworkbench.org/capture

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Tested on iPadOS on Safari at https://spectralworkbench.org/capture

RPReplay_Final1616509391.MP4

[jywarren]

This should be achievable with the new Capture code in publiclab/spectral-workbench.js#219, and so we should note that substantial project would solve this and many other issues in this repository. Thank you, it's a great suggestion!!!

[jywarren]

This may be complete now!

[jywarren]

Aha - it still gets stuck on the initial frame -- it connects to camera on iOS but freezes immediately. Should debug with an iOS device!

[jywarren]

publiclab/spectral-workbench.js#266