Zhao Liang, Please read disclaimer in android's mp3 decoder http://android.git.kernel.org/?p=platform/external/opencore.git;a=blob;f=codecs_v2/audio/mp3/patent_disclaimer.txt;h=b4bf11d4ab14011ba28ce5ff6090529d2b7b587f;hb=HEAD 2 <#l2> THIS IS NOT A GRANT OF PATENT RIGHTS. 3 <#l3> 4 <#l4> Google makes no representation or warranty that the codecs for which 5 <#l5> source code is made available hereunder are unencumbered by 6 <#l6> third-party patents. Those intending to use this source code in 7 <#l7> hardware or software products are advised that implementations of 8 <#l8> these codecs, including in open source software or shareware, may 9 <#l9> require patent licenses from the relevant patent holders. For codec, google release it doesn't mean it has no patent issue. On Fri, Mar 13, 2009 at 4:58 PM, Liang Zhao <liangzhao.bit at gmail.com> wrote: > Julien, > > I agree with you about LGPL, but for my cases, mp3demux, seems it has few > issues (just my personal oppionion). > I quote an example from Android, in Android formal release, it has openCore > engine with mp3demux sourcecode embedded, and its license is Apache license. > If it has patent issues, google may not release it. > > That's just my guess. :) > > Zhao Liang > > 2009/3/13 Julien Moutte <julien at moutte.net> > > Hi, >> >> Please have a look at paragraph 11 of the LGPL : >> >> --- >> 11. If, as a consequence of a court judgment or allegation of patent >> infringement or for any other reason (not limited to patent issues), >> conditions are imposed on you (whether by court order, agreement or >> otherwise) that contradict the conditions of this License, they do not >> excuse you from the conditions of this License. If you cannot >> distribute so as to satisfy simultaneously your obligations under this >> License and any other pertinent obligations, then as a consequence you >> may not distribute the Library at all. For example, if a patent >> license would not permit royalty-free redistribution of the Library by >> all those who receive copies directly or indirectly through you, then >> the only way you could satisfy both it and this License would be to >> refrain entirely from distribution of the Library. >> --- >> >> That means that any (L)GPL component that you distribute needs to be >> redistributable with no patent restriction. >> >> This is completely incompatible with most patent licensing agreements >> which require you to pay a royalty fee for every unit you ship. >> >> Please find attached a document written by our lawyer on that topic. >> >> Fluendo's products are covering part of this problem. You can license >> proprietary decoders and demuxers that will work with GStreamer and come >> with or without patent licenses. >> >> Hope this helps, >> >> Best regards, >> >> Julien Moutte, >> FLUENDO S.A. >> http://www.fluendo.com >> >> >> >> >> Edward Hervey wrote: >> >>> On Fri, 2009-03-13 at 10:27 +0800, Liang Zhao wrote: >>> >>> >>>> Hi all, >>>> >>>> I plan to port mpegaudioparse and asfdemux in plugin-ugly into my >>>> product for resale, is it reasonable? >>>> >>>> >>> >>> If you mean whether you have the right... it's LGPL, so yes :) >>> >>> >>> >>>> no any license/patent issues? >>>> >>>> >>> >>> Two different things: >>> * The software license (LGPL) : If you make any modifications, try to >>> push them upstream, since anybody buying your 'product' will have the >>> right to demand the exact source code use to build those plugins. >>> >>> * Patents. This is for container formats... and it's, to be honest, a >>> very tricky situation. >>> There are some saying you need to pay royalties (to whom?) and some >>> not (because container formats are trivial). But something tells me that >>> if there was any patents involved ... you would already be covered >>> considering that you must have decoders (asf without wm* decoders is >>> useless, and mpegaudioparse without mp3 decoder also) for which you >>> acquired (or are acquiring, or got the usage rights with the hardware >>> decoders) a usage license. >>> Consult a lawyer. >>> >>> >>> >>>> if have, after I pay the royalty, is it ok? >>>> >>>> >>> >>> The two items above are the only major items to be aware of. But as I >>> said, if you're making a product, you might want to consult a lawyer >>> specialized in that field. >>> >>> Keep us informed of your progress and show us what product it is once >>> it's released :) >>> >>> Edward >>> >>> >>> >>>> -- >>>> BRs. >>>> Zhao Liang >>>> >>>> >>> >> > > ------------------------------------------------------------------------------ > Apps built with the Adobe(R) Flex(R) framework and Flex Builder(TM) are > powering Web 2.0 with engaging, cross-platform capabilities. Quickly and > easily build your RIAs with Flex Builder, the Eclipse(TM)based development > software that enables intelligent coding and step-through debugging. > Download the free 60 day trial. http://p.sf.net/sfu/www-adobe-com > _______________________________________________ > Gstreamer-embedded mailing list > Gstreamer-embedded at lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/gstreamer-embedded > > -- -- Prajnashi S -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.freedesktop.org/archives/gstreamer-embedded/attachments/20090314/ad181c61/attachment.htm>
