GitLab

https://bugzilla.gnome.org/show_bug.cgi?id=687416

https://bugzilla.gnome.org/show_bug.cgi?id=629117

This never really took off and is most likely completely
unused. If there is still a need for this, it should
probably be done differently, perhaps inside oggdemux/mux.

Somewhat at least. No idea why it doesn't pick up the description
or example pipeline.

Valgrind is much more useful these days.

This is causing us lots of headaches in 0.10 and needs to be done
differently and properly in 0.11. playbin or decodebin should
reconfigure themselves based on reconfigure events, for example.

This was done in 0.10 to avoid conflict with the rtp elements in
farsight, but the gst-prefixing is no longer needed in 0.11