documentation for bluescreen and alpha mask

[ramsiva]

where can i find documentation for mosaic, bluescreen and alpha masking. I need to know what all the available options for vfilter module, chroma module and where to mention u,v, ut, vt values for bluescreen filtering.
I am not finding anything online except for this,

http://wiki.videolan.org/Documentation: ... bluescreen

please direct me to the right place.
thanks

[VLC_help]

All options can be found from http://wiki.videolan.org/VLC_command-line_help