[Webkit-unassigned] [Bug 184885] New: Video "looping" during live HLS playback since iOS11

bugzilla-daemon at webkit.org bugzilla-daemon at webkit.org
Mon Apr 23 09:12:17 PDT 2018


            Bug ID: 184885
           Summary: Video "looping" during live HLS playback since iOS11
           Product: WebKit
           Version: Safari 11
          Hardware: iPhone / iPad
                OS: iOS 11
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: Media Elements
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: bikegriffith at gmail.com

During live HLS playback, the video appears to randomly and sporadically rewind and replay one or more segments. Use reports suggest a frequency up to 4 times per hour during live playback. The exact scenario is difficult to reproduce, but it is happening with some regular frequency during live streaming. We've had numerous reports from end-users and have found other reports on forums.

It appears to primarily affect iOS11+ devices during live HLS playback, possibly on spotty internet connections.  We've heard some users have the issue frequently on Wifi and then switch to LTE and it clears up.

The symptom is often described as:
* Video Looping
* Video Rewinding
* Video Skipping Back
* Video Replaying Last Few Seconds

[0] Forum discussion about bug at https://www.giantbomb.com/forums/bug-reporting-33/videos-keep-rewinding-back-last-5-seconds-1814605/
[1] Other user reported at https://discussions.apple.com/thread/8082640
[2] Other user reported at https://discussions.apple.com/thread/8247396
[3] Other user reported at https://discussions.apple.com/thread/8203039

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