Quote:
Originally Posted by Bhavnahari
If the data that is being reused comes from encoding a downscaled video (scale-factor=2),
it does not make a lot of sense to use intra/inter refinement levels 0/1 as levels 0 and 1 reuse most of the information from
the previous pass with no or minimal re-evaluation of analysis information. This can have a huge impact on the quality of the encode.
We have observed that --refine-inter=3 and --refine-intra=4 gives the best quality, even better than standalone x265 encodes in some cases,
with a performance gain of up to 1.8X.
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My settings then...
Code:
--crf 17 --profile main10 --level-idc 5.1 --output-depth 10 --ctu 32 --amp --vbv-bufsize 160000 --vbv-maxrate 160000 --me star
--max-merge 5 --rc-lookahead 40 --lookahead-slices 4 --gop-lookahead 34 --ref 5 --hdr --hdr-opt --repeat-headers --no-info --no-deblock
--no-sao --no-strong-intra-smoothing --high-tier --refine-inter 3 --refine-intra 4
Of course, display settings are entered too...
Warning:
Code:
x265 [warning]: Intra refinement requires analysis load, analysis-reuse-level 10, scale factor. Disabling intra refine.
x265 [warning]: Inter refinement requires analysis load, analysis-reuse-level 10, scale factor. Disabling inter refine.
Can it be used with CRF? Or? Some parameters missing?