[FFmpeg-user] Improved documentation of -filter_complex_script

[Michael Koch]

Am 24.07.2023 um 02:48 schrieb Gordon Charles:
> The documentation for filter_complex_script reads:
>
> -filter_complex_script filename (global)
>
> This option is similar to -filter_complex, the only difference is that 
> its argument is the name of the file from which
> a complex filtergraph description is to be read.
>
> Unlike the filter_complex command line option which supports 
> multi-line input through the shell supported methods,
> I could not find:
>
> 1) an example of a multi-line input
> 2) a statement that multi-line input is not supported

Please show an example of a multi-line script file that didn't work.
I agree that the documentation for -filter_complex_script should be 
improved.
According to my notes, multi-line input is supported, empty lines are 
allowed, but comments are not allowed.

Michael