Selur's Little Message Board

if i using x264 2-pass mode, how to set QP=0? or QP=0 can only set in CRF mode?

There is no way to combine --qp=0 and 2pass encoding.
If you want lossless encoding with x264, you would have to:

• set "x264->Base->Restriction Settings->AVC Profile" to either 'High4:4:4' or 'None'
  
• set "x264->Base->General Settings->Encoding Mode' to 'constant quantizer (1-pass)'
  
• enabled "x264->Base->General Settings->Lossless'
  

this way Hybrid would use --cq=0.

Cu Selur

OK, thanks