License impact of opencore-amr and vo-aacenc/amrwbenc

Alessio Treglia alessio at
Wed Feb 8 11:47:30 UTC 2012

On Wed, Feb 8, 2012 at 12:39 PM, Fabian Greffrath <fabian at> wrote:
> Well, in Debian gstreamer0.10-plugins-bad is linked against vo-aacenc and
> vo-amrwbenc and gstreamer0.10-plugins-ugly is linked against opencore-amr,
> but according to their respective debian/copyright files, the packages are
> still released under the terms of the GPL-2+. Is this simply an oversight
> and should get changed to GPL-3?

Yes, AFAIK GPL-2+ makes the package redistributable under GPL-3 and then
debian/copyright could be adapted to reflect that and avoid any licensing issue.

> For the same reason we have a libav-extra package in Debian which provides a
> libavcodec library linked against the aforementioned libraries. According to
> its debian/copyright file, the GPL-3 applies to the resulting binary
> packages. What does this mean for packages linking against this variant of
> libavcodec? What are the exact license incompatibilities that we want to
> avoid by providing this variant? Does this mean that a package which is
> licensed under GPL-2 (not 2+) cannot get linked against the GPL-3'ed
> libavcodec?

Still AFAIK, no, that such of package couldn't, right because of the
incompatibility between GPL-2 and Apache-2.0

Alessio Treglia          |
Debian Developer         | alessio at
Ubuntu Core Developer    | quadrispro at
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