On Wednesday 30 August 2006 00:39, Lance Hanlen wrote: > On 8/29/06, Dieter <[EMAIL PROTECTED]> wrote: > > > Theora's IP is designed from the ground > > > up to be as "patent-free" as our system(s) of government allow. > > > > That's great. But since the common sources of video (over the air > > broadcasts, DVDs, etc.) are mpeg, we need to be able to decode > > mpeg. > > In fact, MPEG and Theora are different ways of saying the same thing. > Video uses several fundamental cores, if you have one standard worked > out you have done the dog work for all of them, it's just a question > of details (but that's where the devil is :)
Actually, way back (before Vorbis was standardised even) there was a tarkin-dev mailinglist and the beginnings of a Tarkin video codec project over at Xiph. That codec was based on 3D wavelets. And I've had ideas of a codec that doesn't even have the concept of a frame for a while, but I haven't had time to work it out. Of course, neither of these are mainstream, and they probably wouldn't have become mainstream anyway due to patent uncertainty. Video compression is a patent minefield, but at least for MPEG you have some idea of where the mines are, and since it's widespread the (perceived) risk is lower. Just saying that there are other options. Lourens
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