Bug 232916

Summary: WebKit Cocoa doesn't support change of resolution mid-stream
Product: WebKit Reporter: Jean-Yves Avenard [:jya] <jean-yves.avenard>
Component: MediaAssignee: Nobody <webkit-unassigned>
Status: NEW ---    
Severity: Normal CC: webkit-bug-importer
Priority: P2 Keywords: InRadar
Version: Other   
Hardware: Unspecified   
OS: Unspecified   
See Also: https://bugs.webkit.org/show_bug.cgi?id=231084

Description Jean-Yves Avenard [:jya] 2021-11-09 17:08:54 PST 
Seen in bug 231084.

The AVFoundation only supports AVC1 content where the H264 SPS/PPS NAL are defined out of bound and static.

AVC3 allows for SPS/PPS to be in-band and to have the content change mid-stream.

We do not support those files and we can't detect a change of resolution.
Comment 1 Radar WebKit Bug Importer 2021-11-09 17:09:40 PST 
<rdar://problem/85230716>