Bug#694657: closed by Reinhard Tartler <siretart at tauware.de> (Bug#694657: fixed in libav 6:9.1-1)

[Reinhard Tartler]

On Wed, Jan 9, 2013 at 10:08 PM, Francesco Poli
<invernomuto at paranoici.org> wrote:
> On Wed, 9 Jan 2013 21:11:38 +0100 Reinhard Tartler wrote:
>
>> On Wed, Jan 9, 2013 at 7:18 PM, Francesco Poli
> [...]
>> > Which license is the libavcodec-extra-* package released under?
>> > LGPL-2.1+ or GPL-2+ ?
>>
>> GPL-3+
>
> GPL-3+ is the effective license of the binary package.
> My question was "which is the license for the source files which are
> compiled in order to generate that binary package?".

Oh I'm sorry, I mixed that up. There is no clear answer on that
because it depends. Most of the files are LGPL, but some hand-written
assembler optimizations are GPL-2+. The configure script offers an
--enable-gpl switch that includes those GPL-2+ sources. We do enable
this switch for all packages we produce in Debian.

In theory, we could probably also provide an LGPL build of libavcodec.
Fortunately, nobody has requested that so far.

HTH


-- 
regards,
    Reinhard