As has been said, it would be essentially impossible to track down everyone
who's contributed to a project the size of ffmpeg and gain permission of each
to alter the licence, so the discussion is effectively moot. Another reason
it's moot is that open source is effectively a religion to a lot of people,
Stallman is one of its prophets, and the licence he originated is one of its
sacred texts. The question being asked here is perhaps a little naïve but that
explains the vehemence of the response. Asking people to give up GPL is like
pissing on their sainted aunt.
The thing that always makes me laugh about this is a piece written years ago
for O'Reilly in which it was argued that the GPL is unnecessarily confusing,
and the person making that argument had been senior in the Perl community. When
Perl people are criticising something for being impenetrable, it's probably
time to take note.
The thing which makes all this a bit difficult is whether it's possible (or
easy) to prove that a given distributed binary is actually compiled from the
source code one is offering. I'm not sure that this has ever been tested in
court - most of the (L)GPL stuff hasn't, much - but it's not obvious to how
someone could prove that if there were ever a dispute. It would be difficult to
create a build system which would create a bit-identical binary twice from the
same source tree, and other approaches (use of the strings command is often
suggested) are obviously far from conclusive and tremendously easy to fake.
In the end, most open source licences work because people mostly obey the
spirit of them and, I suspect, for no other reason. I suspect many of them are
broken constantly and it's okay because nobody's reading the program flash out
of most of the world's shipped SoCs and trying to figure out what's in there.
P
On Tuesday, 28 November 2023 at 11:40:39 GMT, Rob Hallam
<[email protected]> wrote:
As has been stated, it seems vanishingly unlikely there will be a relicense.
However, it seems there is a misconception about the GPL here:
On Tue, 28 Nov 2023 at 10:24, Suminda Sirinath Salpitikorala
Dharmasena <[email protected]> wrote:
>*GPL means that all forks need to be public, not that the modifications need to
> be upstreamed.
The GPL does not require "all forks need to be public". A private
entity (company, organisation) can use a GPL'd project internally and
they never have to release their code. [0]
This comes up so frequently it has a FAQ:
https://www.gnu.org/licenses/gpl-faq.en.html#GPLRequireSourcePostedPublic
Of course, if the product is released, users have the right to request
a copy of the source to the product. That is of course the point of
copyleft- if you build on the freely-available work of other people,
others should be able to use your work freely too.
Cheers,
Rob
--
[0]: Note that another option would be calling an ffmpeg binary from a
(publically-released) proprietary program, but naturally the source of
ffmpeg (including any modifications) would need to be available on
request; and if the two programs had sufficient shared state, they may
be considered as a single program and so again covered by the GPL.
_______________________________________________
ffmpeg-user mailing list
[email protected]
https://ffmpeg.org/mailman/listinfo/ffmpeg-user
To unsubscribe, visit link above, or email
[email protected] with subject "unsubscribe".
_______________________________________________
ffmpeg-user mailing list
[email protected]
https://ffmpeg.org/mailman/listinfo/ffmpeg-user
To unsubscribe, visit link above, or email
[email protected] with subject "unsubscribe".
