[FFmpeg-user] Report non Compliance with License

[Reindl Harald]

Am 29.01.2017 um 22:54 schrieb Carl Eugen Hoyos:
> 2017-01-29 21:02 GMT+01:00 Reindl Harald <h.reindl at thelounge.net>:
>>
>> Am 29.01.2017 um 20:53 schrieb Phil Rhodes:
>>>>
>>>>  Make sure the source code corresponds exactly to the library
>>>> binaries you are distributing.
>>>
>>> How is this to be proven?
>>
>> it's impossible to prove it
>
> This is not generally correct:
> The Debian builds are - for example - binary-reproducible.

but these are no debian builds and without repeatable builds you can't 
prove it nor proves a binary with a different hash build from the 
sources that these where not used for the shipped binary

without the 100% exactly build environment including all versions of 
involved software and libraries you can't prove it

>> but it's possible to prove the opposite in some cases
>
> It's usually easy: As reported, Todd, Michael & James, Inc. and Video Surgeon
> are violating the copyrights of the FFmpeg developers

as said: in some cases, in a closed appliance you would even have a 
problem to prove that ffmpeg exists there at all