314311 2026-05-07 03:17:57 -0700 [GStreamer] media/media-vp8-hiddenframes.html fails 2026-05-12 06:29:36 -0700 1 1 1 Unclassified WebKit WebKitGTK WebKit Nightly Build Unspecified Unspecified RESOLVED FIXED P2 Normal --- 1 cgarcia philn bugs-noreply fujii philn oldest_to_newest 2208547 0 cgarcia 2026-05-07 03:17:57 -0700 . 2208873 1 fujii 2026-05-07 23:30:26 -0700 This test case has a high fuzzy threshold. > <meta name="fuzzy" content="maxDifference=3-207; totalPixels=27386-57600" /> If I remove this line, both UseSkiaForComposition on and off, actual results show the first frame. This test case expects the last frame. This bug is not a regression of UseSkiaForComposition. I think this is a GStreamer backend bug. 2208962 2 philn 2026-05-08 05:30:51 -0700 I don't see any failure on https://results.webkit.org/?suite=layout-tests&test=media%2Fmedia-vp8-hiddenframes.html&platform=GTK&platform=WPE ? 2209194 3 fujii 2026-05-08 16:37:09 -0700 Needs to "export WEBKIT_USE_SKIA_FOR_COMPOSITION=1" or removing the fuzzy meta element at the moment. There are two problem. 1. the first frame is painted even though the last frame is expected 2. Looks a bit darker if Skia compositor is enabled I think this bug ticket should track the #1 problem because that's the main purpose of the test case. 2209323 4 philn 2026-05-09 03:02:58 -0700 Pull request: https://github.com/WebKit/WebKit/pull/64612 2210064 5 ews-feeder 2026-05-12 01:56:19 -0700 Committed 313064@main (65523b157f07): <https://commits.webkit.org/313064@main> Reviewed commits have been landed. Closing PR #64612 and removing active labels. 2210120 6 ews-feeder 2026-05-12 06:29:36 -0700 Committed 305877.495@webkitglib/2.52 (6df9adc0d72e): <https://commits.webkit.org/305877.495@webkitglib/2.52> Reviewed commits have been landed. Closing PR #64749 and removing active labels.