Does x264 have the algorithm about deciding the inital qp?

[Albert6677]

I have found that there are many papers about deciding the initial qp. But after reading the source code, I did not fount anything about it in x264.

I read the paper, it says the initial qp depends on the levels of bit per pixel.

Could you please tell me whether you have found this algorithm or not?
If it doesn't, why not？

Thank you!

[imcold]

No idea what paper you're talking about, but initial QP very much depends on what ratecontrol mode; you probably want to search for MBtree algorithm.