[FFmpeg-user] In and out-range Scale option able to correct 0-255 video to 0-235?

[Christoph Gerstbauer]

Hello,

is this ffmpeg scale option a possible method to "crop" input vidoe with 
0-255 values to an output encoding of 16-235 values?
I am not shure about, if it does that correction or if it only writes a 
metadata flag "tv/full" into the final output file.

https://www.ffmpeg.org/ffmpeg-filters.html#scale-1

‘in_range’
‘out_range’

Best Regards
CHristoph