314643 2026-05-12 08:52:27 -0700 [GStreamer][MSE] ended event may not always fire when the duration change 2026-05-15 10:50:30 -0700 1 1 1 Unclassified WebKit Platform WebKit Nightly Build Unspecified Unspecified NEW InRadar P2 Normal --- 314628 1 philn webkit-unassigned jean-yves.avenard webkit-bug-importer oldest_to_newest 2210145 0 philn 2026-05-12 08:52:27 -0700 +++ This bug was initially created as a clone of Bug #314628 +++ Consider the following. a MediaSource is created with data from [0-5][6-10] playback stalls at currentTime = 5. Now the player removes data from [6-10] and set the duration to 5. The ended event will never fire as timeChanged would only be called at the completion of the seek handled by https://searchfox.org/wubkat/source/Source/WebCore/html/HTMLMediaElement.cpp#6060-6061 ``` if (now > dur) seekInternal(dur); ``` this causes the intermittent timeout in the test imported/w3c/web-platform-tests/media-source/mediasource-duration.html 2210433 1 philn 2026-05-13 01:11:58 -0700 Pull request: https://github.com/WebKit/WebKit/pull/64826