243982 2022-08-16 02:05:26 -0700 REGRESSION (iOS 16 Beta 5) Video is broken for WebRTC call if User navigates to Youtube and back 2023-08-08 14:56:58 -0700 1 1 1 Unclassified WebKit WebRTC Other iPhone / iPad Other RESOLVED CONFIGURATION CHANGED https://bugs.webkit.org/show_bug.cgi?id=244505 https://bugs.webkit.org/show_bug.cgi?id=259924 InRadar P2 Major --- 1 madara.freimane webkit-unassigned ddp.bkdn madara.freimane webkit-bug-importer youennf oldest_to_newest 1891615 0 461666 madara.freimane 2022-08-16 02:05:26 -0700 Created attachment 461666 sysdiagnose_2022.08.16_11-45-16+0300_iPhone-OS_iPhone_20A5339d.tar.gz Summary: REGRESSION (iOS 16 Beta 5) Video is broken for WebRTC call if User navigates to Youtube and back Tested devices: Bug is reproducible on: - iPhone 13 | iOS 16 Beta 5 (20A5339d) - iPhone 11 Pro Max | iOS 16 Beta 5 (20A5339d) Bug is no reproducible on: - iPhone 11 | iOS 15.6 (19G71) Use case: Precondition: User is in active WebRTC call Permissions for camera and microphone are set to "Ask" in browser settings Steps: 1. iOS 16 User navigates to Youtube and listens music for ~3min 2. iOS 16 User navigates back to the Safari browser 3. iOS 16 User accepts permissions Actual result: The outgoing video is broken, and other User sees the black video from iOS 16 User Expected result: The outgoing video is available, and other User sees the good incoming video from iOS 16 User Reproducibility: 100% Additional information: -Log file added in attachments (defect reproduced on 16.08.22 at 11:45 EET) 1891629 1 461668 madara.freimane 2022-08-16 04:01:26 -0700 Created attachment 461668 sysdiagnose_2022.08.16_13-53-25+0300_iPhone-OS_iPhone_20A5339d.tar.gz Added additional sysdiagnose file: sysdiagnose_2022.08.16_13-53-25+0300_iPhone-OS_iPhone_20A5339d.tar.gz Seems that we have bigger reproducibility if AirPods connected with device => also audio becomes broken. And if we disconnect AirPods and rejoin WebRTC join, we don't have outgoing video and audio and Safari freezes. Let me know if there is a need to add additional information or log file. 1891648 2 youennf 2022-08-16 06:51:39 -0700 From the logs, I can see some errors like: 2022-08-16 11:42:10.311782+0300 0x55A9 Error 0x0 541 com.apple.WebKit.GPU: (WebCore) [com.apple.WebKit:WebRTC] LocalSampleBufferDisplayLayer::layerErrorDidChange (9958DCCA7039740) 2022-08-16 11:42:10.589290+0300 0x55A9 Error 0x0 541 com.apple.WebKit.GPU: (WebCore) [com.apple.WebKit:WebRTC] AudioMediaStreamTrackRendererInternalUnit::createAudioUnit AudioUnitInitialize() failed, error = 560557684 We fixed related errors in the latest iOS 16 beta 6. @Madara, could you have a try? 1891682 3 youennf 2022-08-16 09:19:53 -0700 See also https://bugs.webkit.org/show_bug.cgi?id=243993 1891761 5 webkit-bug-importer 2022-08-16 14:31:24 -0700 <rdar://problem/98748804> 1891764 6 ap 2022-08-16 14:34:31 -0700 Removed sysdiagnoses, as they prevented importing to Radar, and sharing them isn't good for privacy. Will re-attach to radar directly. 1891935 7 madara.freimane 2022-08-17 06:30:06 -0700 Hi unfortunately, I am still able reproduce defects with latest available iOS Beta version: iOS 16 beta 6 (20A5349b), device: iPhone 11 Pro Max I created folder in Google drive and shared it with and there a new sysdiagnose file: https://drive.google.com/file/d/1wvzEYrbKWsZv1zujNIDRNRtEvs9tfBBV/view?usp=sharing sysdiagnose_2022.08.17_14-54-30+0300_iPhone-OS_iPhone_20A5349b.tar.gz 1891936 8 madara.freimane 2022-08-17 06:33:32 -0700 (In reply to Madara Freimane from comment #7) > Hi > unfortunately, I am still able reproduce defects with latest available iOS > Beta version: iOS 16 beta 6 (20A5349b), device: iPhone 11 Pro Max > > I created folder in Google drive and shared it with and there a new > sysdiagnose file: > > https://drive.google.com/file/d/1wvzEYrbKWsZv1zujNIDRNRtEvs9tfBBV/ > view?usp=sharing > > sysdiagnose_2022.08.17_14-54-30+0300_iPhone-OS_iPhone_20A5349b.tar.gz Shared Google drive with Youenn, Alexey and webkit-bug-importer@group.apple.com 1892177 9 madara.freimane 2022-08-18 02:43:15 -0700 Hi! Added additional sysdiagnose file (use case: AirPods connected => navigate to Youtube and back): https://drive.google.com/file/d/1ubW5LCOkLYull6oozHQB3hH1WD52ykPF/view?usp=sharing sysdiagnose_2022.08.18_12-34-27+0300_iPhone-OS_iPhone_20A5349b.tar.gz 1892900 10 youennf 2022-08-22 01:14:04 -0700 From the last sysdiagnose, I can see: 2022-08-18 12:30:25.760241+0300 0x1276 Error 0x0 319 com.apple.WebKit.GPU: (WebCore) [com.apple.WebKit:WebRTC] AudioMediaStreamTrackRendererInternalUnit::createAudioUnit AudioUnitInitialize() failed, error = 560557684 This should be fixed by bug 243249. I also see that we are stopping past captures since a new camera or microphone is selected, (for instance switching from front to back camera): 2022-08-18 12:32:40.462696+0300 0x1276 Error 0x0 319 com.apple.WebKit.GPU: (WebKit) [com.apple.WebKit:WebRTC] Ending microphone source as new source is using a different device. 2022-08-18 12:32:55.025852+0300 0x1276 Error 0x0 319 com.apple.WebKit.GPU: (WebKit) [com.apple.WebKit:WebRTC] Ending camera source as new source is using a different device. @madara, can you detail which WebRTC website you were using and which actions you did on this website. I can see YouTube being used between 12:30 until 12:32. At 12:32, I can see the website is asking for microphone/camera access and is switching from AirPods to iPhone microphone, so we end the AirPods microphone track. 1892920 11 madara.freimane 2022-08-22 02:43:24 -0700 Respecting the confidentiality, an email was sent with additional information to Youenn. Let me know if there is a need to make additional tests / we need to give more information about our issue. 1912618 12 madara.freimane 2022-11-15 08:25:30 -0800 I’m not able to reproduce described issue in ticket with iOS 16.2 Beta 2, build: 20C5043e, iPhone 11 Pro Max.
 @Youenn, should we see the fix with this version? Bug linked with https://bugs.webkit.org/show_bug.cgi?id=244505 1919871 13 madara.freimane 2022-12-16 02:56:27 -0800 Bug is not reproducible anymore. Tested OK on: * iPhone 11 Pro Max | iOS 16.2, build: 20C65 * iPhone 12 Pro Max | iOS 16.2, build: 20C65 * iPhone 14 | iOS 16.2, build: 20C65 Thanks!