[Webkit-unassigned] [Bug 212780] New: audio (and sometimes video) element get paused and stays paused when another app uses audio

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=212780

            Bug ID: 212780
           Summary: audio (and sometimes video) element get paused and
                    stays paused when another app uses audio
           Product: WebKit
           Version: Safari 13
          Hardware: iPhone / iPad
                OS: iOS 13
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: Media
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: makarand at gmail.com

Some audio (and sometimes video) elements stay in paused state even after Safari gains foreground.

To repro this issue check out sample app @ https://makarandp0.github.io/safariAudioGetsPaused/

Steps
1) Click "Synthetic Audio" - This will create an audio track local and remote (using webrtc) and attach them to audio elements.
2) Go to Youtube (or other application) and play some content - Notice that audio elements on sample page gets paused - which is Okay.

3) Go back to Safari - 
Actual: notice that Local Audio Track starts playing but Remote Audio Element stays muted.
Expected: Both audio elements should receive "play" event and start playing.

I have seen this with both audio and video tracks, both synthetic and the ones obtained using `getUserMedia`.

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