[FFmpeg-devel] [PATCH] VP8 de/encode via libvpx

[Hervé W.]

On 20 May 2010 13:54, Diego Biurrun <diego at biurrun.de> wrote:
> On Thu, May 20, 2010 at 12:26:48PM +0300, Uoti Urpala wrote:
>> On Thu, 2010-05-20 at 10:12 +0200, Diego Biurrun wrote:
>> > Ah, so the patent grant only covers this implementation! ?Once we come
>> > up with our native and faster decoder, we will be liable again. ?Good
>> > job Google!
>> >
>> > Also note the language about "necessarily infringed" - if Google comes
>> > up with some clever tricks to speed up this implementation tenfold and
>> > then go on to patent it, you are *not* granted a license. ?You can,
>> > after all, implement VP8 the slow way...
>>
>> Well what else would you expect such a patent license to say? It could
>> hardly specify that it'd cover any patent in any code whatsoever as long
>> as that code managed to decode VP8 as one of its functions.
>
> I would expect such a patent license to cover any VP8 implementation, not
> just a particular implementation of VP8 made by Google. ?I wouldn't mind
> language that excluded code not related to handling VP8, but covering
> just a single implementation is not good enough.

Apparently there's slightly different license for their implementation
and the bitstream specification. The bitstream license seems to extend
to other implementations as well.
http://www.webmproject.org/license/

-V