WebM Licensing Problems Resolved
breser writes "The WebM licensing problems have been resolved. The copyright license is straight BSD now, and the patent license is separate and has no impact on the copyright license. Quoting Chris DiBona: 'As it was originally written, if a patent action was brought against Google, the patent license terminated. This provision itself is not unusual in an OSS license, and similar provisions exist in the 2nd Apache License and in version 3 of the GPL. The twist was that ours terminated "any" rights and not just rights to the patents, which made our license GPLv3 and GPLv2 incompatible. Also, in doing this, we effectively created a potentially new open source copyright license, something we are loath to do. Using patent language borrowed from both the Apache and GPLv3 patent clauses, in this new iteration of the patent clause we've decoupled patents from copyright, thus preserving the pure BSD nature of the copyright license. This means we are no longer creating a new open source copyright license, and the patent grant can exist on its own.'"
There's no doubt that Google has made an effort to make its licensing terms more consistent and compatible with existing FOSS licenses. Maybe some of this could have been resolved beforehand if Google had talked to such organizations as the OSI and FSF.
But one important problem remains even with the new licensing terms: there's no indemnification or holding harmless in the event of patent-related problems. I asked at the end of this blog post whether it would be fair for Google to reap most of the rewards if WebM becomes a success while the commercial adopters of WebM would bear the risk in case things go wrong on the patent front. By not even providing some basic indemnification, Google calls into question that it's really sure there aren't going to be any problems.
I am no expert on licenses, but according to GNU, the 3-clause BSD license used by WebM is GPL-compatible. http://www.gnu.org/licenses/license-list.html#GPLCompatibleLicenses
This is done with programmable DSPs these days, which means making them do WebM is not going to be a huge hurdle.