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

Francesco Poli invernomuto at paranoici.org
Thu Jan 10 17:30:50 UTC 2013

On Thu, 10 Jan 2013 09:55:12 +0100 Reinhard Tartler wrote:

> 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.

Wait, are you saying that those few GPL-licensed files:

|  Files: libavdevice/x11grab.c
|   libavfilter/yadif.h
|   libavfilter/vf_blackframe.c
|   libavfilter/vf_boxblur.c
|   libavfilter/vf_cropdetect.c
|   libavfilter/vf_delogo.c
|   libavfilter/vf_hqdn3d.c
|   libavfilter/vf_yadif.c
|   libavfilter/x86/yadif.c
|   libavfilter/x86/yadif_template.c
|  License: GPL-2+~Libav

are compiled into, or linked with, each shared object (*.so) shipped in
all Debian binary packages built from the libav source package?

In other words, are you saying that all binary packages built from
the libav Debian source package are effectively under GPL-2+
(except for libavcodec-extra-* and libav-dbg, which are effectively
under GPL-3+)?
Isn't there any binary package effectively under LGPL-2.1+?

Please clarify, since this may heavily affect the resolution of
licensing issues for other packages!

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