[FFmpeg-devel] GOM Player on the Blacklisted Projects

[Diego Biurrun]

On Tue, Mar 25, 2008 at 04:22:43PM +0900, ??? Ethan Park wrote:
> 
> > -----Original Message-----
> > From: Diego Biurrun [mailto:diego at biurrun.de]
> > Sent: Tuesday, March 25, 2008 3:57 AM
> > 
> > On Mon, Mar 24, 2008 at 10:53:33AM +0900, ??? Ethan Park wrote:
> > > > -----Original Message-----
> > > > From: Diego Biurrun [mailto:diego at biurrun.de]
> > > > Sent: Friday, February 08, 2008 2:12 AM
> > > >
> > > > I would appreciate avoiding top-posting in email communication,
> > > > thank you in advance.
> > > >
> > > > On Tue, Feb 05, 2008 at 05:34:36PM +0900, ??? Ethan Park wrote:
> > > > >
> > > > > My name is Ethan Park, and I am the product manager for GOM Player.
> > > >
> > > > I am Diego Biurrun, I am the MPlayer webmaster and also happen to
> > > > handle its legal affairs.
> > > >
> > > > > I noticed that our product is on the Blacklisted Projects list on
> > > > > your website (http://www.mplayerhq.hu/design7/projects.html).
> > > > >
> > > > > We have always mentioned FFmpeg with a link to the modified source
> > > > > code under Copyright Info on our Korean version of GOM Player
> > > > > (which is the most important version for us as it has more than
> > > > > 10x users than the English version), however we have failed to do
> > > > > so on our English version up until version 2.1.8. This wasn?t
> > > > > intentional, but rather a lack of our translation effort. We do
> > > > > sincerely apologize for violating your terms. However, we have not
> > > > > received your ?requests to mark [the] originals? as mentioned on
> > > > > your website, unfortunately.
> > > > >
> > > > > Our most up to date GOM Player (Version 2.1.9.3752) does give
> > > > > credit to FFmpeg, includes a copy of LGPL, and provides a link to
> > > > > the URL where you can obtain the modified source code of FFmpeg
> > > > > for free of charge.
> > > > >
> > > > > I hope you will consider removing our product from your blacklist.
> > > >
> > > > We are investigating the issue, you shall hear from us soon.
> > >
> > > Diego-
> > > Can you please give us an update on this issue?
> > 
> > We have not yet investigated this in detail, but I notice the following
> > issues:
> > 
> > - The source code tarball contains no license file.
> > - It's completely unclear which version of FFmpeg your code is based on
> >   and what changes you made.
> > 
> > - There are a bunch of files with incompatible licenses, namely
> > 
> > skl_dct.h
> > skl_dct.c
> > i386/skl_dct_sse.asm
> > i386/skl_dct_sse2.asm
> > i386/skl_nasm.h
> > 
> > /********************************************************
> >  * Some code. Copyright (C) 2003 by Pascal Massimino.   *
> >  * All Rights Reserved.      (http://skal.planet-d.net) *
> >  * For Educational/Academic use ONLY. See 'LICENSE.TXT'.*
> > ********************************************************/
> > 
> > You seem to be using these illegally.  There is no LICENSE.TXT file
> > included in the zip file you provide.
> > 
> > Then there are these two files:
> > 
> > i386/skl_fdct_mmx.asm
> > i386/skl_fdct_sse2.asm
> > 
> > These files are licensed under the GPL, not the LGPL.  You ship the binary
> > together with the LGPL license, but by using these two files all of the
> > binary is covered by the GPL, not the LGPL.
> > 
> > Furthermore, this does not appear to be the source code for the complete
> > application.
> 
> I forwarded your email to our development team, and they made the following changes.
> 
> Source files deleted:
> 	skl_dct.h
> 	skl_dct.c
> 	i386/skl_dct_sse.asm
> 	i386/skl_dct_sse2.asm
> 	i386/skl_nasm.h
> 	i386/skl_fdct_mmx.asm
> 	i386/skl_fdct_sse2.asm

This is of course insufficient.  You used and distributed these files,
you have to abide by the license and respect Pascal's copyright.

> Changes made:
> 	Original source:
> 		libavcodec version 51.40.4
> 		libavutil version 49.4.0

That's a good start, but not very precise.  A sufficiently precise
answer would be the Subversion revision number you based your work on.

> 	Changes:
> 		libavcodec ported to win32 dll using MinGW

That's also a good start, but not precise enough.  A sufficiently
precise answer would be a diff file with your changes.

> Our next release will be shipped with the changes made today, and the
> source code will be uploaded to our server shortly.

Let us know when you do this.

Diego
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