Any 2021 lossless video comparison?

[FranceBB]

Originally Posted by poisondeathray

For direct input, I used demuxer lavf , src was prores file . If your binary does not have high bit depth support you won't get that "resize [warning]: converting from yuv422p10le to yuv422p16le"

About the "resize warning", I deal with 10bit and 12bit sources all the time and I find it a bit annoying to go to 16bit planar every time in Avisynth only for x264 to then use the Sierra A2-4 error diffusion dithering to go back to 10bit planar...

Sometimes I get 10bit sources I don't have to apply any post processing to 'cause they're already fine and I'd just like to encode them to 10bit H.264, so going from 10bit planar to 16bit and then back to 10bit is a bit of a waste.
I just wish x264 supported all Avisynth high bit depth input (10bit, 12bit, 14bit) and not just 8bit and 16bit...