Comment 6 for bug 1463262

Also just spotted this, after adding a bunch more videos to the Videos directory:

ThumbnailerImageResponse::dbus_call_finished(): D-Bus error: "Handler::create_finished(): unity::ResourceException: RequestBase::thumbnail(): key = /home/phablet/Videos/com.ubuntu.camera/1.mp4\0556085\01433986922.237337000\01433986922.237337000:
    VideoScreenshotter::data(): vs-thumb subprocess crashed"
libust[1988/2009]: Error: Error opening shm /lttng-ust-wait-5-32011 (in get_wait_shm() at lttng-ust-comm.c:958)
libust[1988/2008]: Error: Error opening shm /lttng-ust-wait-5 (in get_wait_shm() at lttng-ust-comm.c:958)
ThumbnailerImageResponse::dbus_call_finished(): D-Bus error: "Handler::create_finished(): unity::ResourceException: RequestBase::thumbnail(): key = /home/phablet/Videos/com.ubuntu.camera/8.mp4\0556165\01433986924.69291831\01433986924.69291831:
    VideoScreenshotter::data(): vs-thumb subprocess crashed"

There are two such messages and, on screen, I see two icons that show the "no artwork found icon". So, it appears that the no artwork found icons are not due to timeouts, but due to gstreamer falling over.