[Webkit-unassigned] [Bug 276562] New: [ iOS18 ] 2 wpt/webcodecs/* layout tests are constantly failing.

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=276562

            Bug ID: 276562
           Summary: [ iOS18 ] 2 wpt/webcodecs/* layout tests are
                    constantly failing.
           Product: WebKit
           Version: WebKit Nightly Build
          Hardware: Unspecified
                OS: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: Web Audio
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: ben_schwartz at apple.com
                CC: cdumez at apple.com,
                    webkit-bot-watchers-bugzilla at group.apple.com,
                    webkit-bug-importer at group.apple.com

The following two tests (and many variants) are constantly failing on iOS 18:

imported/w3c/web-platform-tests/webcodecs/full-cycle-test.https.any.html
imported/w3c/web-platform-tests/webcodecs/full-cycle-test.https.any.worker.html

HISTORY:

No link, as we don't currently perform automated testing on iOS 18 in CI.

TEXT DIFF:

Most diffs have lines similar to "+(Encoder Configuration) AllowFrameReordering is not supported for H264_Baseline_3_0", or "DataError: Key frame is required".

REPRODUCIBILITY:

I was able to reproduce this issue on the latest iOS 18 simulator ToT using the following command:

run-webkit-tests --ios-simulator -v --clobber-old-results imported/w3c/web-platform-tests/webcodecs/full-cycle-test.https.any.html imported/w3c/web-platform-tests/webcodecs/full-cycle-test.https.any.worker.html

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