Public bug reported: The Shotwell thumbnailer is limited in the way it does seeking in some video formats, resulting in data that is not the full video frame but only interframe data, resulting in mostly gray thumbnails for such video formats. This is not a GStreamer bug, since Totem thumbnailer works fine, so it's a difference in how GStreamer is used.
This can be tested manually with: /usr/lib/shotwell/shotwell-video-thumbnailer video.MTS > out.png Sony AVCHD format (MTS) is one example, while the MP4 from Sony's better XAVC S format works fine. This Ubuntu bug is for following the upstream bug report. [Test Case] wget http://kernelcat.com/shotwell/20141230125000.MTS totem-video-thumbnailer -r 20141230125000.MTS totem.png /usr/lib/shotwell/shotwell-video-thumbnailer 20141230125000.MTS > shotwell.png ffmpegthumbnailer -s0 -i20141230125000.MTS -offmpeg.png Totem and ffmpegthumbnailer generate a correct thumbnail, Shotwell does not. ** Affects: shotwell Importance: Unknown Status: Unknown ** Affects: shotwell (Ubuntu) Importance: Medium Status: New ** Bug watch added: GNOME Bug Tracker #718989 https://bugzilla.gnome.org/show_bug.cgi?id=718989 ** Also affects: shotwell via https://bugzilla.gnome.org/show_bug.cgi?id=718989 Importance: Unknown Status: Unknown -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1406546 Title: Gray thumbnails generated for some videos To manage notifications about this bug go to: https://bugs.launchpad.net/shotwell/+bug/1406546/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs