2017-11-29 17:02 GMT+01:00 Werner Schindler <Schindler@fct.de>:
We want to integrate ffmpeg.exe in our application
What do you mean with "integrate"? And what exactly do you want to integrate? I ask because I find it difficult to integrate an executable in an application but if you are really just distributing an ffmpeg executable that is called with file names as parameters from your application, the (L)GPL does not effect your application.
Also, we want to deliver ffmpeg.exe with our installer package.
Don't forget to tell your users that your installer installs FFmpeg. Don't forget to tell your users that FFmpeg is distributed under the GPL and show them the GPL. (This assumes you compiled with --enable-gpl, if not, the LGPL applies.) Either make the exact FFmpeg source code you used to compile the binary you are distributing part of your installer or provide it at the same download page where your installer can be found. If your EULA claims that your software belongs to you (I expect your EULA to claim this), make it crystal-clear that you do not own FFmpeg and where FFmpeg can be found. This assumes that you are distributing a stand-alone binary of the ffmpeg application, not libraries that you call from your application. (It also assumes you are not using a funny work-around that does not "use" the libraries directly but actually does through some trick. Calling the ffmpeg executable and passing file names as parameters is not such a trick.) I am not a lawyer, ask your lawyer if you need legal advice.
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As said, please remove this from all emails sent to any public mailing list. And please remember not to top-post here, Carl Eugen