desktop-packages team mailing list archive

[Timo Jyrinki <timo.jyrinki@xxxxxxxxxxxxx>]

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 Desktop
Packages, which is subscribed to shotwell in Ubuntu.
https://bugs.launchpad.net/bugs/1406546

Title:
  Gray thumbnails generated for some videos

Status in Shotwell:
  Unknown
Status in shotwell package in Ubuntu:
  New

Bug description:
  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.

To manage notifications about this bug go to:
https://bugs.launchpad.net/shotwell/+bug/1406546/+subscriptions