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DTL · 28th June 2022, 20:06

" that version, updated?"

The most currently developed new feature of internal shifting for MDegrainN need at least AVX2 CPU to run faster in compare with old versions. And still have only YV12 format supported in this mode with Y-block size of 8x8. So it will not run faster at old AVX-only chip.

" always wondered if there is a way to do it automatically"

Initial estimation of the thSAD may be with MShow(showsad=true). To make it work stable I use single pair of frames search:

Code:

super = MSuper(mt=false, pel=1)
forward_vec1 = MAnalyse(super, isb = false, delta = 1, search=3, chroma=true, mt=false)
MShow(super,forward_vec1, showsad=true)

With multi-mode of MAnalyse it typically not shows SAD stable enough.

" increasing tr and thsad at the same time"

thSAD mostly control 'quality by blurring' and tr the 'amount of degraining'. So initially it is good to set as high thSAD as still not too much degrade fine details but already making degraining with relatively low tr like 3. And next increase tr to balance speed/degraining ratio. And look for the ratio of thSAD vs thSCD1 value - if thSAD > thSCD1 visibly (also if mean SAD by MShow(showsad=true) is > thSCD1) - need to start raise thSCD1 too.

28th June 2022, 20:06	#790 \| Link
DTL Registered User Join Date: Jul 2018 Posts: 1,070	" that version, updated?" The most currently developed new feature of internal shifting for MDegrainN need at least AVX2 CPU to run faster in compare with old versions. And still have only YV12 format supported in this mode with Y-block size of 8x8. So it will not run faster at old AVX-only chip. " always wondered if there is a way to do it automatically" Initial estimation of the thSAD may be with MShow(showsad=true). To make it work stable I use single pair of frames search: Code: super = MSuper(mt=false, pel=1) forward_vec1 = MAnalyse(super, isb = false, delta = 1, search=3, chroma=true, mt=false) MShow(super,forward_vec1, showsad=true) With multi-mode of MAnalyse it typically not shows SAD stable enough. " increasing tr and thsad at the same time" thSAD mostly control 'quality by blurring' and tr the 'amount of degraining'. So initially it is good to set as high thSAD as still not too much degrade fine details but already making degraining with relatively low tr like 3. And next increase tr to balance speed/degraining ratio. And look for the ratio of thSAD vs thSCD1 value - if thSAD > thSCD1 visibly (also if mean SAD by MShow(showsad=true) is > thSCD1) - need to start raise thSCD1 too. Last edited by DTL; 28th June 2022 at 20:16.