Red Hat Bugzilla – Bug 458404
x-ogg-skeleton element reported as missing when playing many Ogg Theora videos
Last modified: 2008-11-19 09:52:24 EST
Description of problem:
I've noticed that when playing many Ogg Theora videos I get an error telling me I am lacking the x-ogg-skeleton element. However this being Ogg Theora, the only video format we play out of the box I would expect this to work without problems.
Version-Release number of selected component (if applicable):
Steps to Reproduce:
1. download and open example video in totem or banshee. http://blip.tv/file/get/Geeko-GregKHTalksAboutTheLinuxKernel503.ogg
Note how a dialog is thrown up complaining that a gstreamer element is missing, namely the x-ogg-skeleton one.
Playback of Ogg Theora video
Also happens here: http://www.gnome.org/~federico/docs/rpm2git/rpm2git-intro.ogg
It seems to happen when RecordMyDesktop is used.
# Jeff Ollie Says:
August 7th, 2008 at 10:36 pm e
The Skeleton data is a format for embedding metadata in Ogg streams. I’ve seen this happen with other Oggs produced with recordmydesktop - Skeleton support seems to have been added recently.
So my guess is it is in our libraries but gstreamer hasn't registered the mime-type.
Oh and I should note the movie actually plays for me after I hit cancel on codina.
You can do a little more digging into the Ogg file with "ogginfo" from the vorbis-tools package:
[jcollie@lt21223 ~]$ ogginfo Geeko-GregKHTalksAboutTheLinuxKernel503.ogg
Processing file "Geeko-GregKHTalksAboutTheLinuxKernel503.ogg"...
New logical stream (#1, serial: 771150c2): type skeleton
New logical stream (#2, serial: 5c8876f4): type theora
New logical stream (#3, serial: 369f373a): type vorbis
[jcollie@lt21223 ~]$ ogginfo rpm2git-intro.ogg
Processing file "rpm2git-intro.ogg"...
New logical stream (#1, serial: 360bc2c1): type skeleton
New logical stream (#2, serial: 1bf56800): type theora
New logical stream (#3, serial: 1f4f58a4): type vorbis
But for example if you check the spacewalk video recently published in the Red Hat Magazine blog:
[jcollie@lt21223 ~]$ ogginfo spacewalk.ogg
Processing file "spacewalk.ogg"...
New logical stream (#1, serial: 024951b0): type theora
New logical stream (#2, serial: 124f06d4): type vorbis
Skeleton support appears to have been added in version 0.3.7.1 of recordmydesktop...
This appears to be the same bug in the Gnome bugzilla:
Bug 537599 – gstfile / discover fails for ogg files with skeleton stream
There's a patch available upstream as well.
Building in rawhide. Reopen the bug if it doesn't fix the problem (although I'll probably test it as well in the morning).
Need to add gstpb-0.10.20-ogg-skeleton.patch to F-9 as well.
*** Bug 468853 has been marked as a duplicate of this bug. ***
gstreamer-plugins-base-0.10.19-4.fc9 has been submitted as an update for Fedora 9.
gstreamer-plugins-base-0.10.19-4.fc9 has been pushed to the Fedora 9 testing repository. If problems still persist, please make note of it in this bug report.
If you want to test the update, you can install it with
su -c 'yum --enablerepo=updates-testing update gstreamer-plugins-base'. You can provide feedback for this update here: http://admin.fedoraproject.org/updates/F9/FEDORA-2008-9303
gstreamer-plugins-base-0.10.19-4.fc9 has been pushed to the Fedora 9 stable repository. If problems still persist, please make note of it in this bug report.