Ton, libavcodec *is* FFmpeg. (Or part of it, anyway.)
The problem that is claimed is that libfaac is included in Blender's version of libavcodec that is distributed with Blender 2.49. The solution is to compile FFmpeg / libavcodec without libfaac. (Throwing out x264 is not an option, as libfaac has more problems than just being GPL-incompatible) It should be a build config change and that's it - but someone has to build a new distribution. Then we should be OK. SVN is down fot the moment, so I haven't been able to look at the 2.49 source to figure out where the change needs to be made. We lose the ability to encode sound using AAC, but nothing more. Could you run this past Carl Hoyos and see if I got this thing right? See here for some others who have run into the same issue: https://bugs.launchpad.net/ubuntu/+source/faac/+bug/374900 http://lists.rpmfusion.org/pipermail/rpmfusion-developers/2009-October/006221.html Also look here for a libfaac license change (?): http://faac.cvs.sourceforge.net/viewvc/faac/faac/libfaac/tns.c?r1=1.8&r2=1.9 Here's the libfaac license, for reference: BEGIN LIBFAAC LICENCE ------------------------------------------------ __________ COPYRIGHTS FAAC is based on the ISO MPEG-4 reference code. For this base code the following license applies: ********************************************************************** This software module was originally developed by FirstName LastName (CompanyName) and edited by FirstName LastName (CompanyName) FirstName LastName (CompanyName) in the course of development of the MPEG-2 NBC/MPEG-4 Audio standard ISO/IEC 13818-7, 14496-1,2 and 3. This software module is an implementation of a part of one or more MPEG-2 NBC/MPEG-4 Audio tools as specified by the MPEG-2 NBC/MPEG-4 Audio standard. ISO/IEC gives users of the MPEG-2 NBC/MPEG-4 Audio standards free license to this software module or modifications thereof for use in hardware or software products claiming conformance to the MPEG-2 NBC/ MPEG-4 Audio standards. Those intending to use this software module in hardware or software products are advised that this use may infringe existing patents. The original developer of this software module and his/her company, the subsequent editors and their companies, and ISO/IEC have no liability for use of this software module or modifications thereof in an implementation. Copyright is not released for non MPEG-2 NBC/MPEG-4 Audio conforming products. The original developer retains full right to use the code for his/her own purpose, assign or donate the code to a third party and to inhibit third party from using the code for non MPEG-2 NBC/MPEG-4 Audio conforming products. This copyright notice must be included in all copies or derivative works. Copyright (c) 1997. ********************************************************************** For the changes made for the FAAC project the GNU Library General Public License (LGPL), version 2 1991 applies. For the changes the following statement applies: ********************************************************************** FAAC - Freeware Advanced Audio Coder Copyright (C) 2001 M. Bakker This library is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation; either version 2.1 of the License, or (at your option) any later version. This library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details. You should have received a copy of the GNU Lesser General Public License along with this library; if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA ********************************************************************** Please note that the use of this software may require the payment of patent royalties. You need to consider this issue before you start building derivative works. We are not warranting or indemnifying you in any way for patent royalities! YOU ARE SOLELY RESPONSIBLE FOR YOUR OWN ACTIONS! END LIBFAAC LICENCE -------------------------------------------------- /LS On 2011-01-06 17:41, Ton Roosendaal wrote: > Hi devs, > > Please advise. I recall libavcodec is quite old already, and probably > obsolete mostly because of FFmpg? > > -Ton- > > ------------------------------------------------------------------------ > Ton Roosendaal Blender Foundation [email protected] www.blender.org > Blender Institute Entrepotdok 57A 1018AD Amsterdam The Netherlands > > Begin forwarded message: > >> From: Carl Eugen Hoyos >> Date: 6 January, 2011 17:15:37 GMT+01:00 >> To: [email protected] >> Subject: Copyright violation distributing faac binaries together >> with GPL software >> >> Hi! >> >> I am an FFmpeg developer and I just found out that Blender binaries >> are distributed containing GPL'd versions of libavcodec linked >> against non-free software (this is a copyright violation). >> >> I don't know where to report this (should I open a bug report?), so >> I write to the only email adress I easily found on the web-site. >> >> I downloaded blender-2.49b-windows, it contains libavcodec.dll, a >> binary distribution of libavcodec. The dll contains code from x264, >> making it GPL (and not LGPL). It also contains code from the libfaac >> project. >> Originally, libfaac claimed to be free software (under the LGPL), >> but unfortunately, this was never true: libfaac is (and always has >> been) proprietary software. >> Since you cannot fulfill the requirements of the GPL for libfaac, >> you cannot distribute a GPL'd version of libavcodec with libfaac >> support enabled. Please remove it from your download page / update >> your libavcodec version. >> >> Thank you, Carl Eugen Hoyos > > _______________________________________________ > Bf-committers mailing list > [email protected] > http://lists.blender.org/mailman/listinfo/bf-committers > _______________________________________________ Bf-committers mailing list [email protected] http://lists.blender.org/mailman/listinfo/bf-committers
