Bug 276562 - [ iOS18 ] 3 wpt/webcodecs/* layout tests are constantly failing.
Summary: [ iOS18 ] 3 wpt/webcodecs/* layout tests are constantly failing.
Status: NEW
Alias: None
Product: WebKit
Classification: Unclassified
Component: Web Audio (show other bugs)
Version: WebKit Nightly Build
Hardware: Unspecified Unspecified
: P2 Normal
Assignee: Nobody
URL:
Keywords: InRadar
Depends on:
Blocks:
 
Reported: 2024-07-12 16:24 PDT by Ben Schwartz
Modified: 2024-07-12 16:43 PDT (History)
3 users (show)

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Description Ben Schwartz 2024-07-12 16:24:29 PDT 
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
Comment 1 Ben Schwartz 2024-07-12 16:30:04 PDT 
It appears that the failures stem from an issue with h264. The unexpected failures are:

  imported/w3c/web-platform-tests/webcodecs/full-cycle-test.https.any.html?h264_annexb
  imported/w3c/web-platform-tests/webcodecs/full-cycle-test.https.any.html?h264_avc
  imported/w3c/web-platform-tests/webcodecs/full-cycle-test.https.any.worker.html?h264_annexb
Comment 2 Radar WebKit Bug Importer 2024-07-12 16:30:13 PDT 
<rdar://problem/131640556>
Comment 3 Ben Schwartz 2024-07-12 16:31:08 PDT 
^ and: imported/w3c/web-platform-tests/webcodecs/videoDecoder-codec-specific.https.any.html?h264_annexb
Comment 4 EWS 2024-07-12 16:43:05 PDT 
Test gardening commit 280929@main (1168d5b38082): <https://commits.webkit.org/280929@main>

Reviewed commits have been landed. Closing PR #30773 and removing active labels.