300041 2025-10-02 12:55:34 -0700 [GStreamer] Sometimes progressive playback is not resumed after seek 2025-10-03 05:41:25 -0700 1 1 1 Unclassified WebKit New Bugs WebKit Nightly Build Unspecified Unspecified RESOLVED FIXED InRadar P2 Normal --- 1 eocanha eocanha webkit-bug-importer oldest_to_newest 2147909 0 eocanha 2025-10-02 12:55:34 -0700 Sometimes, in a downstream multimedia player, regular video playback remains paused after seek instead of resuming automatically. It will play normally when play() or another seek operation are manually triggered. Log analys shows that in the failing case the browser missed the state transition to 'HaveCurrentData', and application can't resume playback after seek. It was missed because it happened the gstreamer pipeline remains in state transition for too long and can't process buffering events. Normally it goes: seek -> Paused pipeline -> buffering (HaveCurrentData) -> finish_buffering(HaveEnoughData) -> start_playback. However, in the failing case, seek takes too long (~2sec) to set the PAUSED state on the pipeline and we are missing the buffering(HaveCurrentData) stage. See: https://github.com/WebPlatformForEmbedded/WPEWebKit/issues/1561 2147933 1 eocanha 2025-10-02 14:11:57 -0700 Pull request: https://github.com/WebKit/WebKit/pull/51698 2148121 2 ews-feeder 2025-10-03 05:40:18 -0700 Committed 300933@main (293dfbd834b9): <https://commits.webkit.org/300933@main> Reviewed commits have been landed. Closing PR #51698 and removing active labels. 2148122 3 webkit-bug-importer 2025-10-03 05:41:25 -0700 <rdar://problem/161890101>