Bug 251403

Summary: WebP video slows to a crawl on the first loop
Product: WebKit Reporter: Brandon <brandonstewart>
Component: MediaAssignee: Nobody <webkit-unassigned>
Status: RESOLVED INVALID    
Severity: Normal CC: ap, e, sabouhallawa, webkit-bug-importer
Priority: P2 Keywords: InRadar
Version: Other   
Hardware: Unspecified   
OS: Unspecified   
See Also: https://bugs.webkit.org/show_bug.cgi?id=248755

Comment 1 Radar WebKit Bug Importer 2023-01-30 16:46:58 PST 
<rdar://problem/104843448>
Comment 2 Eric Portis 2023-01-30 16:52:56 PST 
Looks like this has been noticed by someone else, too (example URL no longer resolves, though): https://discussions.apple.com/thread/252594380
Comment 3 Said Abou-Hallawa 2023-01-31 11:56:44 PST 
The slow animation happens in the first ‘loop’ only. Once the animation starts over, playback occurs at normal speed.
Comment 4 Said Abou-Hallawa 2023-01-31 11:57:39 PST 
rdar://100568410
Comment 5 Alexey Proskuryakov 2023-01-31 13:03:27 PST 
Updating the title, as I observe identical behavior in STP and in shipping Safari.

Also, marking as INVALID, because we currently believe this issue to be below WebKit is system frameworks.