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

Hervé W. H.O.W.aka.V+ffmpeg
Fri May 21 11:13:26 CEST 2010

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.


More information about the ffmpeg-devel mailing list