CRF with AV1

[Selur]

aomenc supports:

--end-usage=<arg>           Rate control mode
                                             vbr, cbr, cq, q

cq 'constrained quality' is probably the most similar to crf.

svt-av1 supports:

--rc                         Rate control mode, default is 0 [0: CRF or CQP (if `--aq-mode` is 0), 1: VBR, 2: CBR]
  -q, --qp                         Initial QP level value, default is 35 [1-63]
      --crf                        Constant Rate Factor value, setting this value is equal to `--rc 0 --aq-mode 2 --qp x`, default is 35 [1-63]
      --tbr                        Target Bitrate (kbps), only applicable for VBR and CBR encoding, default is 7000 [1-100000]
      --mbr                        Maximum Bitrate (kbps) only applicable for CRF encoding, default is 0 [1-100000]

so using "constant quantizer / rate control" with 'CRF' enabled is what you want, since it sets `--rc 0 --aq-mode 2 --qp x`


Cu Selur