[FFmpeg-user] Concat command for ffmpeg fails "Unsafe file name" - why?

[Reindl Harald]

Am 16.03.23 um 12:10 schrieb Bo Berglund:
> Does it matter where on the command line safe is put (in the beginning or at the
> end before the output file name)?
> Maybe it must be defined before ffmpeg reaches file arguments?
> Or does it read ALL arguments before starting to process them?
in general:
params before "-i" are input params
params before the output file are output params

generic options don't matter but i would place them in top of all other 
params