[vlc] parameters in x264 module

[Aurele]

Dear all,

when i see the API documentation of VLC on 
http://www.videolan.org/developers/vlc/doc/doxygen/html/, the x264 
module contains pass, stats parameters for multi pass H264 encoding. But 
i've got source code of VLC 0.8.6i and i'ven't  seen  these  parameters. 
In which version VLC contains these parameters ?

I also want to know if it is possible to add parameters, in the x264 
module, to set quant matrices.

Thanks,

Aurele