Hello, I don't have advanced (and worked) on the NHW codec recently.I however compiled the codec with gcc -O3 setting (the binaries are available from my demo page: http://nhwcodec.blogspot.com ) and just with this optimization (no mmx, sse, avx instructions,... ) the NHW codec is 6x faster to encode and 4x faster to decode than WebP.As I state that my codec is royalty-free, fast with more neatness, these are good speed numbers. For the neatness, I didn't find a good algorithm to make a neatness measurement, so the neatness review is still at visual evaluation for now... For the royalty/patent-free aspect, I remember that I had few months ago this answer from Ralph Giles: "Open source and royalty-free video codec development are definitely on-topic for this list." Can this answer mean that I could have a kind of "guarantee" from Xiph that the NHW codec is royalty-free? Also, I think there are new processings in the NHW codec, would it be better that I patent them? Or can I let it unpatented and open-source? Any feedback is welcome. Cheers, Raphael -------------- next part -------------- An HTML attachment was scrubbed... URL: http://lists.xiph.org/pipermail/theora/attachments/20150115/9ff6fe7d/attachment.htm
Raphael Canut asked:> I could have a kind of "guarantee" from Xiph that the NHW codec is > royalty-free?You probably want a patent attorney which would probably be expensive and even then, in today's world of broken patent systems, I doubt you'd get a "guarantee." -------------- next part -------------- A non-text attachment was scrubbed... Name: not available Type: application/pgp-signature Size: 836 bytes Desc: not available Url : http://lists.xiph.org/pipermail/theora/attachments/20150115/dc9e850e/attachment.pgp
Hello, Yes, that's right.I still think that it would have more weight if I could claim that Xiph has reviewed the source code and find that the NHW codec is royalty/patent-free (better than me alone claiming this...).Maybe it was in this sense that Ralph Giles answered me? Cheers, Raphael 2015-01-15 18:02 GMT+01:00 Jason Self <jason at bluehome.net>:> Raphael Canut asked: > > I could have a kind of "guarantee" from Xiph that the NHW codec is > > royalty-free? > > You probably want a patent attorney which would probably be expensive > and even then, in today's world of broken patent systems, I doubt > you'd get a "guarantee." > > _______________________________________________ > theora mailing list > theora at xiph.org > http://lists.xiph.org/mailman/listinfo/theora > >-------------- next part -------------- An HTML attachment was scrubbed... URL: http://lists.xiph.org/pipermail/theora/attachments/20150115/3938cad4/attachment.htm