What happened to x265 from 2.9 to 3.x? The bitrate dropped (and the QP increased) and the visual output quality has suffered at the same crf with the same command line. I read the release notes here:
https://x265.readthedocs.io/en/defau...easenotes.html but they don't shed a ton of light. I know they made the old veryslow = new slower and effectively made a new preset between placebo and the old veryslow, but I've been using placebo so that doesn't explain it.
My typical 1080p command line switches for 8 bit 4:2:0 input.
Code:
--crf 16.0 -p placebo --no-sao --aq-strength 1.15 --vbv-maxrate 25000 --vbv-bufsize 25000 --level 5.0 --keyint 120 --open-gop -D 10 --colorprim "bt709" --transfer "bt709" --colormatrix "bt709" --sar 1:1