[FFmpeg-devel] Fwd: framebuffer device demuxer

[Diego Biurrun]

On Thu, Jan 27, 2011 at 12:03:43AM +0100, Stefano Sabatini wrote:
> On date Wednesday 2011-01-26 23:56:05 +0100, Diego Biurrun encoded:
> > On Wed, Jan 26, 2011 at 11:18:38PM +0100, Stefano Sabatini wrote:
> > > On date Wednesday 2011-01-26 10:55:56 +0100, Diego Biurrun encoded:
> > > > On Tue, Jan 25, 2011 at 11:47:35PM +0100, Stefano Sabatini wrote:
> > > > > 
> > > > > --- /dev/null
> > > > > +++ b/libavdevice/framebuffer.c
> > > > > @@ -0,0 +1,220 @@
> > > > > +
> > > > > +/**
> > > > > + * @file
> > > > > + * Linux Frame Buffer input device
> > > > 
> > > > framebuffer
> > > > 
> > > > > + * Based on code from fbgrab.c by Gunnar Monell.
> > > > 
> > > > What license was that code?
> > > 
> > > GPL, I concluded that there is not enough code in common to impose the
> > > use of GPL, though I have no problem at re-licensing the file under
> > > GPL if someone insists on this.
> > 
> > Your "based on" wording suggests more than that.  This is dangerous
> > territory, which parts are based on what?  If you want to be absolutely
> > sure, you could ask Gunnar to allow you to use his code under LGPL.
> 
> I believe the original contributor used the fbgrab.c code as template
> to see how to use the device, for example to see which ioctls to call
> and how to use them. Apart from that, there is not much more in
> common. Anyway I'll try to contact Gunnar and ask if he has problems
> with relicensing, hoping he's still around and fine.
> 
> In the meaningwhile we can adopt gpl if you insist.

I don't insist.  In this case the relationship does indeed appear to be
very far.  But please reword your "based on" to "inspired by" or "some
ideas from" or similar.  Your wording gave me the wrong impression, it
can give others a wrong impression as well.

Diego