[FFmpeg-user] using ffmpeg gnu gpl version 3 in commercial software via command line

[אהרון מלאכי]

Hi

I wolud like to use the binary ffmpeg under gpl gnu version 3 in a
commercial software.
I'll not use or compile the code or any dll, just using the ffmpeg.exe
binary file via command line to cut and covert film.
Do you think it could be a license problem?
Do I need to add credit to FFmpeg in the about box?

Thanks
 Aaron