Allwinner actually signed up as part of an attempt not to be a GPL violator anymore, along with releasing the source to a bunch of their stuff as GPL or LGPL. Thanks to their newly-found interest in compliance I think they may actually be the only company shipping hardware-accelerated MPEG and h.264 decoders that don't require any kind of closed-source code. (Unfortunately, the VP8 decoder is closed still because VP8 isn't copyleft and they can get away with it.)