Bug 309438

https://results.webkit.org/?suite=layout-tests&test=media%2Fremote-control-command-scrubbing.html&platform=GTK&platform=WPE https://build.webkit.org/results/GTK-Linux-64-bit-Release-Tests/308879@main%20(23819)/results.html 0:00:08.781789309 650221 0x7f0900001120 ERROR videometa gstvideometa.c:424:default_map: plane 1, no memory at offset 99840 0:00:08.781802564 650221 0x7f0900001120 ERROR default video-frame.c:168:gst_video_frame_map_id: failed to map video frame plane 1 0:00:08.785723698 650221 0x557320cd5760 ERROR webkitcommon GStreamerCommon.cpp:1087:operator():<regular-media-player-8> Got message: error message: 0x7f06a0027ba0, time 99:99:99.999999999, seq-num 6880, element 'avdec_h264-6', GstMessageError, gerror=(GError)NULL, debug=(string)"../../../../../jhbuild/checkout/gstreamer/subprojects/gst-libav/ext/libav/gstavviddec.c\(1888\):\ get_output_buffer\ \(\):\ /GstPlayBin:regular-media-player-8/GstURIDecodeBin:uridecodebin8/GstDecodeBin:decodebin8/avdec_h264:avdec_h264-6:\012The\ video\ memory\ allocated\ from\ downstream\ pool\ could\ not\ mapped\ for\ read\ and\ write."; 0:00:08.785742483 650221 0x557320cd5760 ERROR webkitmediaplayer MediaPlayerPrivateGStreamer.cpp:2132:handleMessage:<regular-media-player-8> Cannot access memory for read and write operation. (url=file:///sdk/webkit/LayoutTests/media/content/test.mp4) (code=7)