--crop parameters don't work as expected

Assuming the format for --crop is WxH+T+L, the following command line will erroneously open a video which is 800-140=660 pixels high, rather than the requested 800 pixels high.

vlc --crop 1920x800+0+140 $(youtube-dl -g https://www.youtube.com/watch?v=gCcx85zbxz4)

Or is the format RxB+T+L? If so, this is non-standard and confusing. From the manual https://wiki.videolan.org/VLC_HowTo/Crop/:

vlc input --vout-filter=crop --crop-geometry=120x120+10+10 120x120 is the wanted resolution (in pixels), and 10+10 is the top-left position where the cropping should start (in pixels)

However, this gives Warning: option --vout-filter no longer exists. so the manual seems outdated to boot.

vlc 3.0.6 on macOS.