ffmpeg -i ../Downloads/Kiosk-Animation_ZENIG.mov -sws_flags dst_range=full Kiosk-Animation.webm

[swscaler @ 0x7fce07800000] [Eval @ 0x7fff53ef9fc0] Undefined constant or missing '(' in 'dst_range=full'
[swscaler @ 0x7fce07800000] Unable to parse option value "dst_range=full"
Error setting option sws_flags.
Error parsing option 'sws_flags' with argument 'dst_range=full'.
Error splitting the argument list: Invalid argument