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Old 18th January 2017, 14:24   #4625  |  Link
ChaosKing
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Join Date: Dec 2005
Location: Germany
Posts: 1,795
I get some kind of strange banding with the latest x265 version.
input/output is 10bit. It is a high motion scene and the difference in bitrate/filesize is about 16% (the x265 encode is smaller)
But this "banding" appears also (less visible) in static scenes where is no movement.

Is there something to reduce the "banding"?

Code:
x265 2.2+22-20217c8af8ac:[Windows][GCC 6.3.0][64 bit] 10bit
--crf 18 --no-strong-intra-smoothing --rd 6 --rd-refine --psy-rd 2.6 --aq-motion --me star --psy-rdoq 2 --opt-cu-delta-qp --tu-inter-depth 4 --tu-intra-depth 4  --preset veryslow --output-depth 10 --deblock -3:-3 --qpstep 6 --min-keyint 1  --ref 6 --bframes 12 --subme 5 --limit-refs 3 --aq-mode 3 --aq-strength 0.8 --ctu 64 --min-cu-size 8 --rect --amp
http://i.imgur.com/gL8hyOV.png






It's also visible with --medium, but also very blurry compared to the x264 version on the left.

Code:
--crf 18  --preset medium --output-depth 10 --input-depth 10
http://i.imgur.com/HkxjvjX.png
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Last edited by ChaosKing; 18th January 2017 at 14:52.
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