[FFmpeg-user] Getting issue in command prompt because of exceeded string limit

[William C Bonner]

I figured out at one point that if my command line was more than about 900
characters long, ffmpeg wouldn't handle it.

I was doing a filter_complex concat operation. My solution was to recognize
the extra long command line and switch to creating a temporary file with
the list of input files, and switch to using the -f concat operation.