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

Kostya kostya.shishkov
Sat Dec 22 15:28:13 CET 2007

On Sat, Dec 22, 2007 at 03:16:59PM +0100, Michael Niedermayer wrote:
> On Sat, Dec 22, 2007 at 02:20:28PM +0100, Diego 'Flameeyes' Petten? wrote:
> > 
> > Hi,
> > 
> > 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:
> > http:/transgaming.org/cvs/".
> > 
> > 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.
> Personally i dont mind how source is provided as long as it is in a reasonable
> way ...
> but, when i click on:
> "CVS download instructions" i reach a page telling me
> "You must read this carefully and agree to it all before you can download the software on this site. "
> I dont have to agree to the LGPL or any of the other hundread licenses
> on that page. This does not exempt them from the requirement of providing
> the source to me (if i had the binary that is)!
> oddly viewcvs is not behind such clickthrough, but i failed to find any
> ffmpeg code in there, anyone knows in which directory/file it is?

> [...]

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