[FFmpeg-devel] configure: Fix decklink license dependency

[Jean-Baptiste Kempf]

On Fri, 8 Feb 2019, at 18:31, Elliott Balsley wrote:
> 
> > On Feb 8, 2019, at 01:17, Jean-Baptiste Kempf <jb at videolan.org> wrote:
> > 
> > Decklink SDK has a very weird EULA + headers license that makes it very dubious that it is free.
> > Decklink refuses to clarify for now. That warrants a non-free flag.
> > I know it's very weird, since the SDK has the source code of some of the kernel modules (but not of the glue).
> > 
> > Nvenc is different and has clear headers, and well known driver.
> > 
> 
> I agree it is weird.  I will ping Blackmagic again for clarification, 
> but based on their last statement I think it’s clear that the headers 
> can be distributed under the Boost license contained in each file.

That would be nice.

> Quote: 
> Access to the DeckLink SDK is governed by the EULA and is only available 
> from the Blackmagic Design website. Applications that are built with the 
> SDK are then licensed via the more permissive license contained within 
> the SDK.
> 
> Carl seemed to agree that the headers are not the issue, but the 
> Decklink driver is not considered a system library.  What makes Nvidia a 
> system library if Decklink is not?  They are both closed source drivers 
> used to control a PCIe card.

The source of the driver is in the Linux SDK package, but not of the controlling library.
(This is the opposite of the nVidia drivers, from my understanding)


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Jean-Baptiste Kempf -  President
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