[Webkit-unassigned] [Bug 230698] New: REGRESSION: getUserMedia camera stream fails after viewing a screenshot

bugzilla-daemon at webkit.org bugzilla-daemon at webkit.org
Thu Sep 23 11:00:34 PDT 2021


https://bugs.webkit.org/show_bug.cgi?id=230698

            Bug ID: 230698
           Summary: REGRESSION: getUserMedia camera stream fails after
                    viewing a screenshot
           Product: WebKit
           Version: Other
          Hardware: iPhone / iPad
                OS: Other
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: WebRTC
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: joel at 8thwall.com
                CC: youennf at gmail.com

Created attachment 439068

  --> https://bugs.webkit.org/attachment.cgi?id=439068&action=review

Camera Feed Turning Black on iOS 15

On iOS 15 getUserMedia camera stream fails after viewing a screenshot (instant markup). This previously worked on iOS 14.8.

After the users exits the instant markup view, Safari give no indication of a change (‘VisibilityChange’, ‘pageshow’ are not called). At this point, (video.videoWidth>0 while video.currentTime remains 0).

Reproduction Steps:
1. Open https://webrtc.github.io/samples/src/content/getusermedia/gum/ on iOS15
2. Take a screenshot by pressing the power button and the volume up button
3. Open the screenshot preview (instant markup)
4. Either press delete, or save
5. The camera feed is now black (getUserMedia camera stream has failed)

Attached is an example video on iOS 15

Please let me know if I can provide more info, thank you.

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