Quote:
Originally Posted by _kermit
I've tried this on a 1 min. clip:
--vbv-maxrate 15000 --deblock=-2:-2 --amp --aq-strength 0.85 --selective-sao 1 --rskip --output-depth 10 --aq-mode 3
with CRF 18-22 in 1.0 steps.
CRF 18 results in 5.1Mbit/s (the original has 37Mbit), but all still have the same issue.
Anything else that can help?
Obviously otherwise only using very high bitrate might solve this or not re-encoing at all or accepting that this might happen.
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Perhaps stick with the default Aq strength for the time being. CRF 18 with Aq mode 3 really should look good.
I take it you're running the latest build?
In the interest of narrowing the problem down, maybe try the "slower" preset. I'd also see if --qg-size 64 can help and there's always good old Aq-mode 1.
Is the source very grainy?