From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from ptmx.org (ptmx.org [178.63.28.110]) by mail.openembedded.org (Postfix) with ESMTP id 547FE65CE7 for ; Wed, 17 Sep 2014 07:09:17 +0000 (UTC) Received: from [192.168.178.14] (chello062178118086.5.14.vie.surfer.at [62.178.118.86]) by ptmx.org (Postfix) with ESMTPSA id 7DD0622EDE; Wed, 17 Sep 2014 09:09:18 +0200 (CEST) Message-ID: <5419339D.5060807@pseudoterminal.org> Date: Wed, 17 Sep 2014 09:09:17 +0200 From: Carlos Rafael Giani User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:31.0) Gecko/20100101 Thunderbird/31.1.1 MIME-Version: 1.0 To: Khem Raj References: <5417FED2.1030106@pseudoterminal.org> In-Reply-To: X-Content-Filtered-By: Mailman/MimeDel 2.1.12 Cc: openembeded-devel Subject: Re: mpg123 recipe LICENSE_FLAGS = "commercial" issue X-BeenThere: openembedded-devel@lists.openembedded.org X-Mailman-Version: 2.1.12 Precedence: list Reply-To: openembedded-devel@lists.openembedded.org List-Id: Using the OpenEmbedded metadata to build Distributions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 17 Sep 2014 07:09:19 -0000 Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 7bit On 2014-09-17 02:20, Khem Raj wrote: > > > On Tuesday, September 16, 2014, Carlos Rafael Giani > > wrote: > > On 2014-09-16 07:43, Khem Raj wrote: > > Hi Carlos/All > > I want to understand why LICENSE_FLAGS = "commercial" was added to > > meta-multimedia/recipes-multimedia/mpg123/mpg123_1.15.3.bb > > > in initial commit and has been carried over upgrades ever since > > The license seems to be LGPL 2.0 and is explained in greater > detail here > > http://mpg123.org/cgi-bin/scm/mpg123/trunk/doc/ROAD_TO_LGPL?revision=2607 > > So what portions of it are having different terms for > commercial distribution ? > > Thanks > > -Khem > > > It's because MPEG audio is subject to royalties > > > In what way where the component is lgpl I would like to understand > > This is also the reason why gst-plugins-ugly and > gstreamer1.0-plugins-ugly have this flag. > > Carlos > *mpg123* is LGPL. But mpg123 is an implementation of an MPEG 1 audio layer 1/2/3 and MPEG 2 audio. MPEG-1 layer 3 is what everybody calls mp3. (mp1 and mp2 are pretty much dead by now.) mp3 itself contains patents, and these are subject to royalties. Technicolor (formerly Thomson) does enforce these royalties. See http://mp3licensing.com/royalty/software.html for their price model. MPEG-2 is controlled by the MPEG LA. Note that these royalties cover the audio technology itself (say, mp3), *not* the implementations. Implementations themselves can be subject to any license, it's up to the authors of the implementations. But if you actually want to use these implementations in a commercial product, you'll have to pay the royalty fees. This is part of the reason why Ogg Vorbis (and Opus) exist. They are an alternative that doesn't require such fees. Therefore, the Vorbis decoder isn't in gst-plugins-ugly, but in gst-plugins-good.