RESOLVED CONFIGURATION CHANGED225295
iOS negotiates h264 high profile but fails to encode it 
https://bugs.webkit.org/show_bug.cgi?id=225295
Summary iOS negotiates h264 high profile but fails to encode it
geir.bakke
Reported 2021-05-03 02:27:09 PDT
Setting up peerConnections between desktop safari and iphone safari (possibly iOS<>iOS as well), they seem to negotiate and use h264 high profile. iOS is not sending any data but receives and renders just fine. Removing high profile by sdp munging seems to fix it partially - but then iOS stutters and sends lots of PLIs (related to #195124?).
Attachments
Add attachment proposed patch, testcase, etc.
Radar WebKit Bug Importer
Comment 1 2021-05-03 04:04:20 PDT
<rdar://problem/77450281>
youenn fablet
Comment 2 2021-05-03 06:43:26 PDT
I tried to do it using whereby.com website with my iMacPro and iPhone 12 but did not repro the issue. @geir, can you give repro steps or the devices that had the issues?
geir.bakke
Comment 3 2021-05-03 23:49:34 PDT
Hi Youenn, I'm reproducing on whereby.com using small room (P2P), 2 participants, iPhone XR safari, Macbook pro intel safari.
youenn fablet
Comment 4 2021-05-05 02:50:52 PDT
As discussed offline with Geir, this is fixed in latest iOS 14.5 release
youenn fablet
Comment 5 2021-05-10 00:31:28 PDT
Reopened for further investigation
youenn fablet
Comment 6 2021-05-17 01:57:32 PDT
Worth checking out iOS 14.6 beta.
youenn fablet
Comment 7 2021-06-07 08:03:40 PDT
I believe this is fixed in iOS 14.6
Note You need to log in before you can comment on or make changes to this bug.