[Webkit-unassigned] [Bug 220242] New: [GStreamer][MSE] WPT framesize tests are flaky failure

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=220242

            Bug ID: 220242
           Summary: [GStreamer][MSE] WPT framesize tests are flaky failure
           Product: WebKit
           Version: WebKit Nightly Build
          Hardware: Unspecified
                OS: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: WebKitGTK
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: aboya at igalia.com
                CC: bugs-noreply at webkitgtk.org

All WPT MSE framesize tests are known to be flaky (having occasional failures) and have been so for a very long time. 

https://bugs.webkit.org/show_bug.cgi?id=220103 improved the handling of video size but wasn't enough to fix these tests.

The failures are probably caused by rapid flushing as the tests append overlapping ranges. Flushes received before playback has started are tricky to implement since GStreamer elements are generally not well tested for that use case.

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