224105 2021-04-02 07:36:12 -0700 [GStreamer] compositing/video/video-clip-change-src.html is flaky failing. 2026-03-24 07:00:40 -0700 1 1 1 Unclassified WebKit Media WebKit Nightly Build Unspecified Unspecified RESOLVED DUPLICATE 309438 https://bugs.webkit.org/show_bug.cgi?id=208219 https://bugs.webkit.org/show_bug.cgi?id=169918 P2 Normal --- 1 clopez webkit-unassigned bugs-noreply csaavedra philn oldest_to_newest 1746491 0 425019 clopez 2021-04-02 07:36:12 -0700 Created attachment 425019 image diff of the failure This tests is flaky and sometimes it fails. When it fails it gives this failure: https://build.webkit.org/results/GTK-Linux-64-bit-Release-Tests/r275410%20(977)/compositing/video/video-clip-change-src-diffs.html This test is also flaky for Mac (see bug 208219 ) but the failure there is different 1746547 1 clopez 2021-04-02 09:57:17 -0700 Updated expectations on r275423 1924449 2 dpino 2023-01-10 07:45:55 -0800 The test or tests filed under this bug are not failing anymore. Test expectations updated in https://commits.webkit.org/258724@main. 1991820 3 philn 2023-11-11 04:37:57 -0800 This is flaky again. Reopening. 2188153 4 csaavedra 2026-03-07 23:27:44 -0800 Updating expectation as it's now passing and timing out. stderr: 0:00:02.937615025 9986 0x7fbd800019f0 ERROR videometa gstvideometa.c:424:default_map: plane 1, no memory at offset 99840 0:00:02.937635514 9986 0x7fbd800019f0 ERROR default video-frame.c:168:gst_video_frame_map_id: failed to map video frame plane 1 0:00:02.937743375 9986 0x55a9aca6b770 ERROR webkitcommon GStreamerCommon.cpp:1087:operator():<regular-media-player-7> Got message: error message: 0x7fbb001ddca0, time 99:99:99.999999999, seq-num 3888, element 'avdec_h264-2', GstMessageError, gerror=(GError)NULL, debug=(string)"../../../../../jhbuild/checkout/gstreamer/subprojects/gst-libav/ext/libav/gstavviddec.c\(1888\):\ get_output_buffer\ \(\):\ /GstPlayBin:regular-media-player-7/GstURIDecodeBin:uridecodebin7/GstDecodeBin:decodebin7/avdec_h264:avdec_h264-2:\012The\ video\ memory\ allocated\ from\ downstream\ pool\ could\ not\ mapped\ for\ read\ and\ write."; 0:00:02.937768652 9986 0x55a9aca6b770 ERROR webkitmediaplayer MediaPlayerPrivateGStreamer.cpp:2132:handleMessage:<regular-media-player-7> Cannot access memory for read and write operation. (url=file:///sdk/webkit/LayoutTests/media/content/test.mp4) (code=7) Sample run: https://build.webkit.org/results/GTK-Linux-64-bit-Release-Tests/308879@main%20(23819)/results.html Historical: https://results.webkit.org/?suite=layout-tests&test=compositing%2Fvideo%2Fvideo-clip-change-src.html&platform=GTK&platform=WPE 2193130 5 philn 2026-03-24 07:00:40 -0700 *** This bug has been marked as a duplicate of bug 309438 *** 425019 2021-04-02 07:36:12 -0700 2021-04-02 07:36:12 -0700 image diff of the failure video-clip-change-src-diff.png image/png 6123 clopez iVBORw0KGgoAAAANSUhEUgAAAyAAAAJYCAAAAAC/Hd2sAAAAAmJLR0QA/4ePzL8AABekSURBVHic 7d17fFTlncfx75kk3JLJ5AohyMVAGEeUm+IiWEHUolV7WS9l8bK8dq2XVVzbta3W+tLeltX6stTd rXW7btVdBVtXaysiVC1WRRYEBRQEQuQWDAkREnLP5Hf2j7kwQDxWnUwm5PP+Q+c855nJ78zrfDnn zPPMGQkAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAABeNpotCgZD ZnZxMPhjs4ZgMLjT7D+CwTPMbEZwzINm1cFgcL/ZT4PB881sUjD4a7OKYDDYZnZPMPg1MwsGg0+b 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