Bug 187642

Summary: Videos take ~20s to fallback to another source when HLS source 404's
Product: WebKit Reporter: newmuis
Component: MediaAssignee: Nobody <webkit-unassigned>
Status: RESOLVED CONFIGURATION CHANGED    
Severity: Normal CC: bfulgham, eric.carlson, jeremyj-wk, jer.noble, newmuis, webkit-bug-importer
Priority: P2 Keywords: InRadar
Version: Safari 11   
Hardware: Unspecified   
OS: Unspecified   
URL: http://jsfiddle.net/p4u5oLva/8/

Description newmuis 2018-07-13 07:31:11 PDT 
This is a video tag with an MP4 source that fails and falls back to another MP4 source: http://jsfiddle.net/p4u5oLva/9/
When loaded in Safari, it requests the fallback video immediately after the first source fails.

This is a video tag with an HLS source that fails and falls back to another MP4 source: http://jsfiddle.net/p4u5oLva/8/
When loaded in Safari, it requests the fallback video 20 seconds after the first source fails.

Tested with Safari 11.1 (13605.1.33.1.2).
Comment 1 Radar WebKit Bug Importer 2018-07-13 16:11:09 PDT 
<rdar://problem/42185335>
Comment 2 Brent Fulgham 2022-02-12 18:35:34 PST 
WebKit QA confirmed this is resolved, most likely in AVFoundation.