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- # IResize by Gavino and IanB and mod by A.SONY to use Custom resizer and Extra resizer parameters may be passed via res_params. like this IResize(240,480,resifilter="LanczosResize",res_params=",taps=5")
- # some parameters are special for 420 (yv12 in vanilla avs)
- # v 1.11
- function IResize(clip c, int NewWidth, int NewHeight, string "resifilter", string "res_params", bool "mpeg2", Float "src_left", Float "src_top", string "cresifilter", string "cres_params") {
- avs26 = VersionNumber() < 2.60 ? false : true
- avspmt = Findstr(VersionString(), "AviSynth+") != 0 && Findstr(VersionString(), "r1576") == 0
- resifilter = default ( resifilter, "Spline36resize" )
- res_params = default(res_params, "")
- mpeg2 = default(mpeg2, true)
- src_left = default(src_left, 0)
- src_top = default(src_top, 0)
- res_params_c = default(cres_params, res_params)
- cresifilter = default(cresifilter, resifilter)
- chr420 = avspmt ? c.is420() : c.isyv12()
- slumSep = chr420 && avs26
- slumres = slumSep ? avspmt ? "ConvertToY()." : "ConvertToY8()." : ""
- c_width = Width(c)
- ch420m = slumSep && mpeg2 ? NewWidth == c_width : false
- wShift = ch420m ? 0.25*(1.0-Float(c_width/2.0)/Float(NewWidth/2.0)) : 0
- c
- SeparateFields()
- Shift = (GetParity() ? -0.25 : 0.25) * (Height()/Float(NewHeight/2)-1.0)
- v2=last
- SelectEven(v2)
- euvcl = slumSep ? avspmt ? Interleave(ExtractU(),ExtractV()) : Interleave(UToY8(),VToY8()) : nop()
- eschrres = slumSep ? "euvcl." : ""
- E = Eval(slumres + resifilter + "(NewWidth, NewHeight/2, src_left=src_left, src_top=src_top + Shift" + res_params + ")")
- Ec = chr420 ? Eval(eschrres + cresifilter + "(slumSep ? NewWidth/2 : NewWidth, slumSep ? NewHeight/4 : NewHeight/2, src_left=wShift + (slumSep ? src_left==0 ? 0 : src_left/2 : src_left), src_top=slumSep ? Shift + (src_top==0 ? 0 : src_top/2) : src_top + 2*Shift" + res_params_c + ")") : nop()
- SelectOdd(v2)
- ouvcl = slumSep ? avspmt ? Interleave(ExtractU(),ExtractV()) : Interleave(UToY8(),VToY8()) : nop()
- oschrres = slumSep ? "ouvcl." : ""
- O = Eval(slumres + resifilter + "(NewWidth, NewHeight/2, src_left=src_left, src_top=src_top + (-Shift)" + res_params + ")")
- Oc = chr420 ? Eval(oschrres + cresifilter + "(slumSep ? NewWidth/2 : NewWidth, slumSep ? NewHeight/4 : NewHeight/2, src_left=wShift + (slumSep ? src_left==0 ? 0 : src_left/2 : src_left), src_top=slumSep ? -Shift + (src_top==0 ? 0 : src_top/2) : src_top + -2*shift" + res_params_c + ")") : nop()
- Interleave(E, O)
- chr420 ? avs26 ? avspmt ? CombinePlanes(last, Interleave(Ec.Selecteven(),Oc.Selecteven()), Interleave(Ec.SelectOdd(),Oc.SelectOdd()), planes="YUV", source_planes="YYY", pixel_type=c.PixelType()) : YtoUV( Interleave(Ec.Selecteven(),Oc.Selecteven()), Interleave(Ec.SelectOdd(),Oc.SelectOdd()), last ) : MergeChroma(Interleave(Ec, Oc)) : Last
- Weave()
- }
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