The Dirac video codec is nearly fixed and part of it is set to become an SMPTE standard. The BBC has tried hard to ensure it is as unencumbered as possible.
http://dirac.sourceforge.net/specification.html
Apart from the coder and decoder both being somewhat inefficient at present, I understand there isn't much that plays it back as yet (VLC in experimental builds).
What would we need before allowing Dirac-encoded video on Wikimedia?
- d.