262952 2023-10-10 04:55:10 -0700 [Macos, ios, ipados] Webrtc new audio on an inactive tab not playing 2023-10-17 22:20:24 -0700 1 1 1 Unclassified WebKit WebRTC Safari 17 All All NEW InRadar P2 Normal --- 1 ivan.zahrodskyi webkit-unassigned Kongpheng.Nanthavongsa webkit-bug-importer youennf oldest_to_newest 1983966 0 468147 ivan.zahrodskyi 2023-10-10 04:55:10 -0700 Created attachment 468147 sample to try this problem We noticed problem with audio during webrtc call on inactive tab. Situation: - User is in the webrtc active call from safari. But this user is doing something on another tab (e.q. shares that tab, reads some information or whatever) - another user joins that call, so new audio track is received but there no any way to play that track (because tab is inactive) I created little sample to reproduce this. - open example - press start - open another tab and wait (near 10 seconds) result: - no audio this works fine in chrome but not in safari. Issue is valid for macos and ios. I'm wondering is it some kind of safari limitation? or this is a bug? 1983970 1 webkit-bug-importer 2023-10-10 05:08:05 -0700 <rdar://problem/116733429> 1983971 2 youennf 2023-10-10 05:09:28 -0700 This might be an autoplay issue. To remove the autoplay restriction, you might want to call play() as part of a user gesture. Or if user is capturing. What happens in your example if the JS is calling play() when the start button is triggered? 1983974 3 ivan.zahrodskyi 2023-10-10 05:24:44 -0700 (In reply to youenn fablet from comment #2) > This might be an autoplay issue. > To remove the autoplay restriction, you might want to call play() as part of > a user gesture. Or if user is capturing. > > What happens in your example if the JS is calling play() when the start > button is triggered? still no audio. But anyway in real world scenario where many participants joins a call we a creating video/audio elements dynamically, so how I can remove autoplay restriction in that case. Also I tried to set "Allow All Auto-Play" in safari settings and it doesn't helped. 468147 2023-10-10 04:55:10 -0700 2023-10-10 04:55:10 -0700 sample to try this problem test.html text/html 2200 ivan.zahrodskyi PCFET0NUWVBFIGh0bWw+CjxodG1sIGxhbmc9ImVuIj4KPGhlYWQ+CiAgPG1ldGEgY2hhcnNldD0i VVRGLTgiPgogIDx0aXRsZT5UaXRsZTwvdGl0bGU+CiAgPHN0eWxlPgogICAgdmlkZW8gewogICAg ICB3aWR0aDogMzIwcHg7CiAgICAgIGhlaWdodDogMTgwcHg7CiAgICB9CiAgICBidXR0b24gewog ICAgICB3aWR0aDogMzAwcHg7CiAgICAgIGhlaWdodDogMTAwcHg7CiAgICB9CiAgPC9zdHlsZT4K PC9oZWFkPgo8Ym9keT4KICA8dmlkZW8gaWQ9InJlbW90ZS12aWRlbyIgYXV0b3BsYXk+PC92aWRl bz4KICA8YnV0dG9uIHR5cGU9ImJ1dHRvbiIgcm9sZT0iYnV0dG9uIiBpZD0ic3RhcnQtYnV0dG9u Ij5TVEFSVDwvYnV0dG9uPgoKICA8c2NyaXB0PgogICAgY29uc3QgcmVtb3RlVmlkZW8gPSBkb2N1 bWVudC5nZXRFbGVtZW50QnlJZCgncmVtb3RlLXZpZGVvJyk7CiAgICBhc3luYyBmdW5jdGlvbiBz dGFydCgpIHsKICAgICAgY29uc3Qgc3RyZWFtID0gYXdhaXQgbmF2aWdhdG9yLm1lZGlhRGV2aWNl cy5nZXRVc2VyTWVkaWEoeyB2aWRlbzogdHJ1ZSwgYXVkaW86IHRydWUgfSk7CiAgICAgIGNvbnN0 IGxvY2FsUGVlckNvbm5lY3Rpb24gPSBuZXcgUlRDUGVlckNvbm5lY3Rpb24oKTsKICAgICAgY29u c3QgcmVtb3RlUGVlckNvbm5lY3Rpb24gPSBuZXcgUlRDUGVlckNvbm5lY3Rpb24oKTsKCiAgICAg IGxvY2FsUGVlckNvbm5lY3Rpb24uYWRkVHJhY2soc3RyZWFtLmdldFZpZGVvVHJhY2tzKClbMF0s IHN0cmVhbSk7CiAgICAgIGxvY2FsUGVlckNvbm5lY3Rpb24ub25pY2VjYW5kaWRhdGUgPSBlID0+ IHsKICAgICAgICByZW1vdGVQZWVyQ29ubmVjdGlvbgogICAgICAgICAgLmFkZEljZUNhbmRpZGF0 ZShlLmNhbmRpZGF0ZSkKICAgICAgfTsKICAgICAgcmVtb3RlUGVlckNvbm5lY3Rpb24ub25pY2Vj YW5kaWRhdGUgPSBlID0+IHsKICAgICAgICBsb2NhbFBlZXJDb25uZWN0aW9uCiAgICAgICAgICAu YWRkSWNlQ2FuZGlkYXRlKGUuY2FuZGlkYXRlKQogICAgICB9OwogICAgICByZW1vdGVQZWVyQ29u bmVjdGlvbi5vbnRyYWNrID0gZSA9PiB7CiAgICAgICAgcmVtb3RlVmlkZW8uc3JjT2JqZWN0ID0g ZS5zdHJlYW1zWzBdOwogICAgICAgIC8vIGlmKGUudHJhY2sua2luZCA9PT0gJ2F1ZGlvJykgewog ICAgICAgIC8vICAgICBjb25zdCBhdWRpb1N0cmVhbSA9IG5ldyBNZWRpYVN0cmVhbSgpOwogICAg ICAgIC8vICAgICBhdWRpb1N0cmVhbS5hZGRUcmFjayhlLnRyYWNrKTsKICAgICAgICAvLyAgICAg Y29uc3QgYXVkaW9FbGVtZW50ID0gbmV3IEF1ZGlvKCk7CiAgICAgICAgLy8gICAgIGF1ZGlvRWxl bWVudC5hdXRvcGxheSA9IHRydWU7CiAgICAgICAgLy8gICAgIGF1ZGlvRWxlbWVudC5zcmNPYmpl Y3QgPSBhdWRpb1N0cmVhbTsKICAgICAgICAvLyAgICAgYXVkaW9FbGVtZW50LnBsYXkoKTsKICAg ICAgICAvLyB9CiAgICAgIH07CgogICAgICBjb25zdCBuZWdvdGlhdGUgPSBhc3luYyAoKSA9PiB7 CiAgICAgICAgY29uc3Qgb2ZmZXIgPSBhd2FpdCBsb2NhbFBlZXJDb25uZWN0aW9uLmNyZWF0ZU9m ZmVyKCk7CiAgICAgICAgYXdhaXQgbG9jYWxQZWVyQ29ubmVjdGlvbi5zZXRMb2NhbERlc2NyaXB0 aW9uKG9mZmVyKTsKICAgICAgICBhd2FpdCByZW1vdGVQZWVyQ29ubmVjdGlvbi5zZXRSZW1vdGVE ZXNjcmlwdGlvbihvZmZlcik7CiAgICAgICAgY29uc3QgYW5zd2VyID0gYXdhaXQgcmVtb3RlUGVl ckNvbm5lY3Rpb24uY3JlYXRlQW5zd2VyKCk7CiAgICAgICAgYXdhaXQgcmVtb3RlUGVlckNvbm5l Y3Rpb24uc2V0TG9jYWxEZXNjcmlwdGlvbihhbnN3ZXIpOwogICAgICAgIGF3YWl0IGxvY2FsUGVl ckNvbm5lY3Rpb24uc2V0UmVtb3RlRGVzY3JpcHRpb24oYW5zd2VyKTsKICAgICAgfTsKCiAgICAg IGxvY2FsUGVlckNvbm5lY3Rpb24ub25uZWdvdGlhdGlvbm5lZWRlZCA9IGFzeW5jICgpID0+IGF3 YWl0IG5lZ290aWF0ZSgpOwogICAgICBhd2FpdCBuZWdvdGlhdGUoKTsKCiAgICAgIHNldFRpbWVv dXQoKCkgPT4gewogICAgICAgIGxvY2FsUGVlckNvbm5lY3Rpb24uYWRkVHJhY2soc3RyZWFtLmdl dEF1ZGlvVHJhY2tzKClbMF0sIHN0cmVhbSk7CiAgICAgIH0sIDcwMDApOwogICAgfQoKICAgIGRv Y3VtZW50LmdldEVsZW1lbnRCeUlkKCdzdGFydC1idXR0b24nKS5vbmNsaWNrID0gKCkgPT4gc3Rh cnQoKTsKICA8L3NjcmlwdD4KPC9ib2R5Pgo8L2h0bWw+Cg==