No option for x264 10 bit

[Selur]

I am encoding x264, 10bit, 4:2:2, gop=1 (intra), crf=0, and I am able to set a vbv-maxrate of 120000. This results in files that good enough quality for what I need and fit my space needs. I am unable to set crf 0 & the vbv-maxrate options are greyed out where I am unable to use them.

crf=0 <> qp = 0 <> lossless encoding, to use lossless encoding you need to a. select a profile which supports it "x264->Base->Restriction Settings->AVC Profile" for example 'High 4:4:4' or 'None' b. you need to set encoding mode to 'constant quantizer (1-pass)' and enable 'lossless'.
vbv and crf=0 do not work together, if you use crf=0/cq=0 vbv settings will be ignored by x264.

Cu Selur