[FFmpeg-devel] [PATCH] G722 decoder

[Diego Biurrun]

On Sun, Mar 22, 2009 at 10:25:58AM -0700, Kenan Gillet wrote:
> On Mar 21, 2009, at 3:58 AM, Diego Biurrun wrote:
> 
> >On Sat, Mar 21, 2009 at 09:24:44AM +0000, Carl Eugen Hoyos wrote:
> >>Diego Biurrun <diego <at> biurrun.de> writes:
> >>
> >>>>+ * G.722 ADPCM audio decoder
> >>>>+ *
> >>>>+ * Copyright (c) 2005 Steve Underwood <steveu at coppice.org>
> >>>>+ * Copyright (c) CMU 1993 Computer Science, Speech Group
> >>>>+ *                        Chengxiang Lu and Alex Hauptmann
> >>>
> >>>Who wrote this?  Do you have permission to license as LGPL?
> >>
> >>The original code can be found here:
> >>http://www.soft-switch.org/downloads/spandsp/
> >>It is already distributed under LGPL
> >
> >No, it is distributed as LGPL 2.1, while FFmpeg is LGPL 2.1 or later.
> >This is incompatible and thus unacceptable.
> >
> >More importantly: Who gave permission to license LGPL 2.1 code as LGPL
> >2.1 or later?
> 
> My bad, i copy-pasted and  overlooked the later in "LGPL 2.1 and  
> later" :(

Sorry to be blunt, but this is quite sloppy and negligent.

> Any suggestions on working this issue out?
> - tracking down the authors, which might be more or less easy/possible

Try sending them emails, they might well be willing to relicense.

> - switching to a compatible and acceptable licence

How would you do that without the authors' permission?

> - dropping the whole thing?

If you fail to get permission from the authors you will have to do this.

Diego