The matroska specification allows one to attach an image file to your video (actually you can store whatever you want in it). In jaunty totem-video-thumbnailer used these in the video embedded images to generate a thumbnail for this movie and only generated a thumbnail from a video frame if there was no image file embedded. In the attached example matroska file (example.mkv) I added the Ubuntu Logo and therefore it is used as a thumbnail in Jaunty in karmic the image is ignored. The nice thing is that you can store the film poster or the cover of the DVD in the movie and it is used as the thumbnail this makes the movies far more easy to recognise than an arbitrary frame of the movie. Another advantage is that thumbnail generation is much faster. Only few programs and devices support this behaviour therefore I found it really nice that the totem-video-thumbnailer supported it and converted my whole collection of movies into the matroska format and added the covers of the DVDs.
You can check whether a matroska file has an image embedded by issuing the following command mkvmerge -i <movie.mkv> I hope I could explain what I would expect. -- videos embedded pictures are no longer used as thumbnails https://bugs.launchpad.net/bugs/437580 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs