x265 HEVC Encoder

brumsky · 24th January 2019, 04:57

@excellentswordfight

I've come to the same conclusion as well. merange should be based off of the CTU. If you leave CTU at 64 then merange should also be reduced. It'll be searching outside of it's original block. Not to say that is bad necessarily though. I've seen certain "high quality" encodes that use meranges larger than the CTU. I'm not 100% sold that it provides tangible differences thoughs.

I personally drop merange to 26 when using CTU 32. Since I never plan on using hex search I should probably change merange to 58 when using CTU64...

Best way to find out is to try it for yourself.

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24th January 2019, 04:57	#8 \| Link
brumsky Registered User Join Date: Jun 2016 Posts: 116	@excellentswordfight I've come to the same conclusion as well. merange should be based off of the CTU. If you leave CTU at 64 then merange should also be reduced. It'll be searching outside of it's original block. Not to say that is bad necessarily though. I've seen certain "high quality" encodes that use meranges larger than the CTU. I'm not 100% sold that it provides tangible differences thoughs. I personally drop merange to 26 when using CTU 32. Since I never plan on using hex search I should probably change merange to 58 when using CTU64... Best way to find out is to try it for yourself.