NEW 259987
H.264 baseline profile is selected but iPhone sends H.264 high profile in the video stream. 
https://bugs.webkit.org/show_bug.cgi?id=259987
Summary H.264 baseline profile is selected but iPhone sends H.264 high profile in the...
jbookshar
Reported 2023-08-09 12:00:30 PDT
In our SDP logs we see the following. SDP Offer from iPhone a=fmtp:96 level-asymmetry-allowed=1;packetization-mode=1;profile-level-id=640c1f a=fmtp:98 level-asymmetry-allowed=1;packetization-mode=1;profile-level-id=42e01f a=fmtp:100 level-asymmetry-allowed=1;packetization-mode=0;profile-level-id=640c1f a=fmtp:102 level-asymmetry-allowed=1;packetization-mode=0;profile-level-id=42e01f SDP Answer to iPhone a=fmtp:102 profile-level-id=42e028;packetization-mode=1 Then our decoder reports that even though baseline profile is selected, we are receiving high profile in the video stream. WARN 2023-08-09T17:15:20.067Z From: 0x01020101 0x00000031 DEFAULT 1000463: H264Decoder_Cl::parseSPSProfileIdc: profile High profile (100) not supported I believe we have reported this in the past and a patch to iOS 14 resolved it.
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Alexey Proskuryakov
Comment 1 2023-08-10 17:09:45 PDT
Sounds like bug 195124, which is still open.
Radar WebKit Bug Importer
Comment 2 2023-08-16 12:01:15 PDT
<rdar://problem/113980881>
jbookshar
Comment 3 2023-08-17 07:25:20 PDT
(In reply to Alexey Proskuryakov from comment #1) > Sounds like bug 195124, which is still open. Yes Long Cheng my co-worker previously entered this bug but I thought it was fixed. Perhaps this is a duplicate then.
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