Bug 215213

Summary:	[iOS 14] MediaStream becomes inactive after video it was assigned to is removed from the DOM
Product:	WebKit	Reporter:	Artjom <artjomvinnikov>
Component:	Media	Assignee:	Nobody <webkit-unassigned>
Status:	RESOLVED DUPLICATE
Severity:	Normal	CC:	webkit-bug-importer, youennf
Priority:	P2	Keywords:	InRadar
Version:	Other
Hardware:	iPhone / iPad
OS:	Other

Description Artjom 2020-08-06 05:09:36 PDT

OS: iOS 14 Beta 3

Steps:

1. Request a stream with getUserMedia and feed it into <video> via srcObject
2. Remove video from the DOM
3. After ~5 seconds camera stream becomes inactive. Camera recording icon gets hidden from url bar, and stream.active returns false.

Small demo to reproduce: https://codesandbox.io/s/smoosh-thunder-1frcl?file=/index.html

Not sure if this is desired behaviour, but it doesn't happen with Safari 13.

Comment 1 Radar WebKit Bug Importer 2020-08-06 10:44:00 PDT

<rdar://problem/66634379>

Comment 2 youenn fablet 2020-08-06 10:54:06 PDT

Thanks Artjom, this might be the memory leak that happens when video element is not rendered but playing.
This should be fixed by https://bugs.webkit.org/show_bug.cgi?id=214262 patch in https://trac.webkit.org/changeset/264312.
I would think this change is included in latest iOS beta 4.
Can you validate this?

Comment 3 Artjom 2020-08-10 00:25:36 PDT

(In reply to youenn fablet from comment #2)
> Thanks Artjom, this might be the memory leak that happens when video element
> is not rendered but playing.
> This should be fixed by https://bugs.webkit.org/show_bug.cgi?id=214262 patch
> in https://trac.webkit.org/changeset/264312.
> I would think this change is included in latest iOS beta 4.
> Can you validate this?

Yes, updating to Beta 4 resolved the issue. Thanks.

Comment 4 Alexey Proskuryakov 2020-08-10 09:29:37 PDT


*** This bug has been marked as a duplicate of bug 214262 ***