[FFmpeg-devel] Possible violation of FFmpeg's license by Transgaming's Cider

Diego 'Flameeyes' Pettenò flameeyes
Sat Dec 22 14:20:28 CET 2007


I stumbled through this yesterday, it might be of interest to you guys,
but I'm not a lawyer, so it might be all right and just being me
thinking negatively.

I bought a copy of Command & Conquer 3 for Mac; the game has been ported
to Mac by Transgaming (of Cedega fame), through their Cider toolkit
(which is probably just based on Cedega itself, although I admit I don't
know enough of that).

On the game's manual, there is a list of copyright holders, many Free
Software projects are listed, including libpng, libjpeg, cg toolkit,
dmalloc, SDL, bstring, iniparser, Squish of course ReWind and Wine, but
also FFmpeg:

"The Cider libquartz.dylib component includes portions of ffmpeg,
Copyright (C) 2000-2006 Fabrice Bellard, et al."

I do have libquartz.dylib on the DVD, but I can't find any copy of the
LGPL license nor the corresponding source code on either the DVD or the
manual, nor I find a written offer to send me the source code.

The only reference to source code is at the end of the page:

"Source code to the LGPL components is available via CVS access through:

I'm not sure if that is enough to be compliant with LGPL license, as if
I recall correctly you need to provide the source code, or a written
offer, together with the binary form.

I wonder if I should also submit this to the other projects involved.

Diego "Flameeyes" Petten?
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