274599 2024-05-23 11:04:40 -0700 REGRESSION(iOS 17.5): getUserMedia camera access doesn't work in the simulator 2024-05-27 07:02:38 -0700 1 1 1 Unclassified WebKit Media WebKit Nightly Build Unspecified Unspecified RESOLVED DUPLICATE 272551 InRadar P2 Normal --- 1 ajuma webkit-unassigned ahmad.saleem792 bfulgham jer.noble thorton webkit-bug-importer wenson_hsieh youennf oldest_to_newest 2037386 0 ajuma 2024-05-23 11:04:40 -0700 Prior to iOS 17.5, getUserMedia camera access worked in the simulator (in WKWebView-based apps but not in Safari) in the sense that after the user accepted the permission prompt, the web page would receive a test pattern simulating a video stream coming from the camera. Chrome for iOS relies on this behavior for unit and integration tests involving camera permission prompts. However, on iOS 17.5, this no longer works -- after the user accepts the prompt, the video capture fails. In the console, we get the following output on https://webrtc.github.io/samples/src/content/getusermedia/gum/: [Log] Got stream with constraints: – {audio: false, video: true} (user-script:29, line 1) [Log] Using video device: Mock video device 1 (user-script:29, line 1) [Error] A MediaStreamTrack ended due to a capture failure 2037613 1 webkit-bug-importer 2024-05-24 06:28:37 -0700 <rdar://problem/128678958> 2037767 2 bfulgham 2024-05-24 14:33:20 -0700 Hi Ali: Could you please confirm which iOS version worked properly? Was it iOS 17.4, or even an earlier release? 2037951 3 ajuma 2024-05-26 14:34:43 -0700 (In reply to Brent Fulgham from comment #2) > Hi Ali: Could you please confirm which iOS version worked properly? Was it > iOS 17.4, or even an earlier release? It was working in 17.4 (as well as in earlier releases). 2038009 4 youennf 2024-05-27 02:26:35 -0700 *** This bug has been marked as a duplicate of bug 272551 *** 2038011 5 youennf 2024-05-27 02:27:54 -0700 This is probably a dupe of https://bugs.webkit.org/show_bug.cgi?id=272551. @Ali, do you see release logging in the GPU process like: "Unable to set media environment, failing capture."? 2038046 6 ajuma 2024-05-27 06:58:48 -0700 (In reply to youenn fablet from comment #5) > This is probably a dupe of https://bugs.webkit.org/show_bug.cgi?id=272551. > @Ali, do you see release logging in the GPU process like: > "Unable to set media environment, failing capture."? Yes, I do see that logging. Thanks for the pointer to the fix! 2038050 7 youennf 2024-05-27 07:02:38 -0700 (In reply to Ali Juma from comment #6) > (In reply to youenn fablet from comment #5) > > This is probably a dupe of https://bugs.webkit.org/show_bug.cgi?id=272551. > > @Ali, do you see release logging in the GPU process like: > > "Unable to set media environment, failing capture."? > > Yes, I do see that logging. Thanks for the pointer to the fix! It might be a fallout of https://bugs.webkit.org/show_bug.cgi?id=270995