[Webkit-unassigned] [Bug 222898] New: getUserMedia memory leak when switching camera

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=222898

            Bug ID: 222898
           Summary: getUserMedia memory leak when switching camera
           Product: WebKit
           Version: Safari 14
          Hardware: iPhone / iPad
                OS: iOS 14
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: WebRTC
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: darius.chris.k at gmail.com
                CC: youennf at gmail.com

Created attachment 422547

  --> https://bugs.webkit.org/attachment.cgi?id=422547&action=review

Memory timeline recording

Releasing an old media stream and getting a new media stream with a different camera seems to leak memory, though not for every switch, or to the same extent on every website. You can see in the attached image my reproduction on https://webrtc.github.io/samples/src/content/devices/input-output/ - the memory use for 'Pages' doubles as I continually switch between front and back camera, and after I stop switching at around 160s, does not ever go back down. On more complex Angular/React websites with a higher memory footprint, a single switch is even causing some devices to reload the page and produce a jetsam event. Let me know if there are any more details I can provide to help.

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