> All other encoders are basically configured by saying "I want to use this scaling factor for the quantization tables, and let's hope that the result will look OK".
crf in x264/x265 is smarter than that, but it's still a closed-form solution. That's probably easier to work with than optimizing for constant SSIM or whatever, it always takes one pass and those objective metrics are not actually very good.
crf in x264/x265 is smarter than that, but it's still a closed-form solution. That's probably easier to work with than optimizing for constant SSIM or whatever, it always takes one pass and those objective metrics are not actually very good.