Resize8
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Revision as of 06:52, 10 September 2015 by Raffriff42 (Talk | contribs)
| Abstract | |
|---|---|
| Author | mawen1250 |
| Version | 1.2 |
| Download | Web page (Japanese) |
| Alt. Download | (Google Translation) |
| Documentation | |
| Category | Resizers |
| License | |
| Discussion | doom9.org |
Description
Fixes chroma shift issues of AviSynth's resizers. Required by Xaa
Script
###### Resize8 v1.2 ###### by mawen1250 ###### 2015.02.23 ######
###### Requirements: AviSynth v2.6+, RgTools 0.92.1 or Repair v1.0pre ######
###### Accept Y8, YV12, YV16, YV24, RGB24, RGB32 input, use AviSynth resizers for scaling ######
###### Resize8() is the same as normal resizer with some extra features. ######
###### Chroma placement is correctly handled by it, while AviSynth resizers doesn't. ######
###### Resize8_Separate() processes each plane's source position separately, ######
###### mainly designed for fixing center shift caused by nnedi3, eedi3, eedi2, etc. ######
###### Note that it doesn't correct chroma placement, so usually the result should be ######
###### resized back to the original size, such as what many AA functions do. ######
###### Adaptive anti-ringing algorithm is supported ######
###### Scaling kernel for luma and chroma can be adjusted separately ######
######
###### All the parameters with "_c" represents U/V plane in YV12/YV16/YV24 or Alpha plane in RGB32.
###### The ones without "_c" represents Y plane in Y8/YV12/YV16/YV24 or R/G/B plane in RGB24/RGB32.
Function Resize8(clip input, int "target_width", int "target_height", float "src_left", float "src_top",
\ float "src_width", float "src_height",
\ string "kernel", string "kernel_c", float "a1", float "a2", float "a1_c", float "a2_c",
\ val "noring", val "noring_c", string "cplace", bool "Y", bool "U", bool "V", bool "Alpha")
{
# Properties of input clip
sCSP = input.GetCSP()
IsY8 = sCSP == "Y8"
IsRGB = LeftStr(sCSP, 3) == "RGB"
oCSP = IsY8 || IsRGB ? "YV24" : sCSP
Assert(sCSP=="Y8" || sCSP=="YV12" || sCSP=="YV16" || sCSP=="YV24" || sCSP=="RGB24" || sCSP=="RGB32", """Resize8: only accept Y8, YV12, YV16, YV24, RGB24, RGB32 input""")
sw = input.Width ()
sh = input.Height()
swc = oCSP=="YV24" ? sw : sw/2
shc = oCSP=="YV12" ? sh/2 : sh
# Parameters for size transform
ow = Default(target_width, sw)
oh = Default(target_height, sh)
owc = oCSP=="YV24" ? ow : ow/2
ohc = oCSP=="YV12" ? oh/2 : oh
Assert(!(oCSP=="YV16" && ow!=owc*2), """Resize8: width of YV16 output clip must be MOD2!""")
Assert(!(oCSP=="YV12" && ow!=owc*2), """Resize8: width of YV12 output clip must be MOD2!""")
Assert(!(oCSP=="YV12" && oh!=ohc*2), """Resize8: height of YV12 output clip must be MOD2!""")
src_l = Default(src_left, 0 )
src_t = Default(src_top, 0 )
src_w = Default(src_width, sw )
src_h = Default(src_height, sh )
src_w = src_w<=0 ? sw-src_l+src_w : src_w
src_h = src_h<=0 ? sh-src_t+src_h : src_h
src_lc = oCSP=="YV24" ? src_l : src_l/2.
src_tc = oCSP=="YV12" ? src_t/2. : src_t
src_wc = oCSP=="YV24" ? src_w : src_w/2.
src_hc = oCSP=="YV12" ? src_h/2. : src_h
# Process
return Resize8_main(input, ow, oh, owc, ohc, src_l, src_t, src_lc, src_tc, src_w, src_h, src_wc, src_hc,
\ kernel, kernel_c, a1, a2, a1_c, a2_c, noring, noring_c, cplace, Y, U, V, Alpha)
}
Function Resize8_Separate(clip input, int "target_width", int "target_height", float "src_left", float "src_top",
\ float "src_width", float "src_height",
\ string "kernel", string "kernel_c", float "a1", float "a2", float "a1_c", float "a2_c",
\ val "noring", val "noring_c", bool "Y", bool "U", bool "V", bool "Alpha")
{
# Properties of input clip
sCSP = input.GetCSP()
IsY8 = sCSP == "Y8"
IsRGB = LeftStr(sCSP, 3) == "RGB"
oCSP = IsY8 || IsRGB ? "YV24" : sCSP
Assert(sCSP=="Y8" || sCSP=="YV12" || sCSP=="YV16" || sCSP=="YV24" || sCSP=="RGB24" || sCSP=="RGB32", """Resize8: only accept Y8, YV12, YV16, YV24, RGB24, RGB32 input""")
sw = input.Width ()
sh = input.Height()
swc = oCSP=="YV24" ? sw : sw/2
shc = oCSP=="YV12" ? sh/2 : sh
# Parameters for size transform
ow = Default(target_width, sw)
oh = Default(target_height, sh)
owc = oCSP=="YV24" ? ow : ow/2
ohc = oCSP=="YV12" ? oh/2 : oh
Assert(!(oCSP=="YV16" && ow!=owc*2), """Resize8: width of YV16 output clip must be MOD2!""")
Assert(!(oCSP=="YV12" && ow!=owc*2), """Resize8: width of YV12 output clip must be MOD2!""")
Assert(!(oCSP=="YV12" && oh!=ohc*2), """Resize8: height of YV12 output clip must be MOD2!""")
src_l = Default(src_left, 0 )
src_t = Default(src_top, 0 )
src_w = Default(src_width, sw )
src_h = Default(src_height, sh )
src_w = src_w<=0 ? sw-src_l+src_w : src_w
src_h = src_h<=0 ? sh-src_t+src_h : src_h
src_r = sw - src_w - src_l
src_b = sh - src_h - src_t
src_lc = src_l
src_tc = src_t
src_wc = swc - src_l - src_r
src_hc = shc - src_t - src_b
# Process
return Resize8_main(input, ow, oh, owc, ohc, src_l, src_t, src_lc, src_tc, src_w, src_h, src_wc, src_hc,
\ kernel, kernel_c, a1, a2, a1_c, a2_c, noring, noring_c, "MPEG1", Y, U, V, Alpha)
}
Function Resize8_main(clip input, int "ow", int "oh", int "owc", int "ohc",
\ float "src_l", float "src_t", float "src_lc", float "src_tc",
\ float "src_w", float "src_h", float "src_wc", float "src_hc",
\ string "kernel", string "kernel_c", float "a1", float "a2", float "a1_c", float "a2_c",
\ val "noring", val "noring_c", string "cplace", bool "Y", bool "U", bool "V", bool "Alpha")
{
# All the parameters with "_c" affects U/V plane in YV12/YV16/YV24 or Alpha plane in RGB32.
# The ones without "_c" affects Y plane in Y8/YV12/YV16/YV24 or R/G/B plane in RGB24/RGB32.
# Properties of input clip
sCSP = input.GetCSP()
IsY8 = sCSP == "Y8"
IsRGB = LeftStr(sCSP, 3) == "RGB"
oCSP = IsY8 || IsRGB ? "YV24" : sCSP
Assert(sCSP=="Y8" || sCSP=="YV12" || sCSP=="YV16" || sCSP=="YV24" || sCSP=="RGB24" || sCSP=="RGB32", """Resize8: only accept Y8, YV12, YV16, YV24, RGB24, RGB32 input""")
sw = input.Width ()
sh = input.Height()
swc = oCSP=="YV24" ? sw : sw/2
shc = oCSP=="YV12" ? sh/2 : sh
# Parameters for resampler
yhratio = float(ow ) / float(src_w )
yvratio = float(oh ) / float(src_h )
chratio = float(owc) / float(src_wc)
cvratio = float(ohc) / float(src_hc)
yup = yhratio * yvratio>1
cup = chratio * cvratio>1
kernel = Default(kernel, yup ? "Lanczos4" : "Spline36")
kernel_c = Default(kernel_c, cup ? "Lanczos" : "Spline36")
# "kernel" sets resizing kernel for luma, "kernel_c" sets resizing kernel for chroma
# Supported kernels: Bicubic, Catmull-Rom, Hermite, Mitchell-Netravali, Robidoux, SoftCubic, SoftCubicXX (XX represents softness:[50-100])
# Point, Bilinear, Gauss/Gaussian, Sinc
# Blankman, Blankman2, Blankman3, Blankman4
# Lanczos, Lanczos2, Lanczos3, Lanczos4
# Spline16, Spline36, Spline64
# By default, "Lanczos4" is set for luma upscaling, "Lanczos" is set for chroma upscaling, "Spline36" is set for luma/chroma downscaling.
kernel = RightStr(kernel , 6) == "Resize" ? LeftStr(kernel , StrLen(kernel )-6) : kernel
kernel_c = RightStr(kernel_c, 6) == "Resize" ? LeftStr(kernel_c, StrLen(kernel_c)-6) : kernel_c
defa1 = Defined(a1)
defa2 = Defined(a2)
a1 = defa1 ? a1 : Resize8_undef()
a2 = defa2 ? a2 : Resize8_undef()
a1_c = Defined(a1_c) ? a1_c : defa1 && kernel==kernel_c ? a1 : Resize8_undef()
a2_c = Defined(a2_c) ? a2_c : defa2 && kernel==kernel_c ? a2 : Resize8_undef()
# "a1", "a2", sets parameters for resizer used in luma
# "a1_c", "a2_c" sets parameters for resizer used in chroma
# "a1" represents "b" and "a2" represents "c" for kernel "Bicubic" (default: b = 1/3., c = 1/3.)
# "a1" represents "taps" and "a2" do nothing for kernel "Blackman" (default: taps=4, 1<=taps<=100)
# "a1" represents "taps" and "a2" do nothing for kernel "Lanczos" (default: taps=3, 1<=taps<=100)
# "a1" represents "taps" and "a2" do nothing for kernel "Sinc" (default: taps=4, 1<=taps<= 20)
# "a1" represents "p" and "a2" do nothing for kernel "Gauss" (default: p=30, 1<= p <=100)
# "a1" represents "soft" and "a2" do nothing for kernel "SoftCubic" (default: soft=75, 50<=soft<=100)
# for kernel "SoftCubicXX", "XX" represents "soft" and "a1"/"a2" do nothing
# "a1" do nothing and "a2" do nothing for the rest kernels supported by Resize8:
# "Catmull-Rom", "Hermite", "Mitchell-Netravali", "Robidoux", "Bilinear", "Point", "Spline16", "Spline36", "Spline64"
# Parameters for anti-ringing algorithm
nrkn = kernel == "Point" || kernel == "Bilinear" || kernel == "Gauss" || kernel == "Gaussian" || kernel == "Hermite" || LeftStr(kernel , 9) == "SoftCubic"
nrkn_c = kernel_c == "Point" || kernel_c == "Bilinear" || kernel_c == "Gauss" || kernel_c == "Gaussian" || kernel_c == "Hermite" || LeftStr(kernel_c, 9) == "SoftCubic"
noring = Default(noring, nrkn ? False : True )
noring_c = Default(noring_c, nrkn_c ? False : noring)
# "noring" & "noring_c" can be Bool or Float
# By default, we don't use anti-ringing algorithm for kernels "Point","Bilinear","Gauss"/"Gaussian","Hermite","SoftCubic".
# When "noring" or "noring_c" is True, adaptive anti-ringing is enabled, when no upscaling is applied, anti-ringing is also automatically disabled.
# For the default kernel of upscaling, kernel="Lanczos4"+noring=True is applied for luma, kernel_c="Lanczos"+noring_c=True is applied for chroma.
# For the default kernel of downscaling, kernel="Spline36"+noring=True is applied for luma/chroma, but the adaptive anti-ringing will turn off anti-ringing.
#
# Use repair to remove ringing introduced from resizer
# noring >= 1 : completely use non-ringing repaired clip
# 0 < noring < 1 : noring is the weight of non-ringing repaired clip for merging with normally upscaled clip
# noring <= 0 or False : do not use non-ringing repaired clip
# noring == True : adapt the weight of non-ringing repaired clip according to input and output resolution
Assert(IsFloat(noring ) || IsBool(noring ), """Resize8: "noring" should be either bool or float!""")
Assert(IsFloat(noring_c) || IsBool(noring_c), """Resize8: "noring_c" should be either bool or float!""")
# Parameters for colorspace
cplace = Default(cplace, "MPEG2")
# Placement of the chroma subsamples. Can be one of these strings:
# "MPEG1": 4:2:0 subsampling used in MPEG-1. Chroma samples are located on the center of each group of 4 pixels.
# "MPEG2": Subsampling used in MPEG-2 4:2:x. Chroma samples are located on the left pixel column of the group.
Yt = Default(Y, True )
Ut = Default(U, True )
Vt = Default(V, True )
At = Default(Alpha, True )
# Control whether to process Y/U/V plane(or R/G/B/A plane for RGB24/RGB32 input)
Ut = IsY8 ? False : Ut
Vt = IsY8 ? False : Vt
At = sCSP=="RGB32" ? At : False
# Chroma placement of MPEG-2 YV12(4:2:0) and YV16(4:2:2) is left-aligned,
# thus center-aligned resizer can cause chroma shift after scaling.
# Positive value means left-shift/top-shift, negetive value means right-shift/bottom-shift.
# chshifta = oCSP=="YV24" || cplace=="MPEG1" ? 0 : 0.25-0.25*chratio # Chroma horizontal shift after scaling
# cvshifta = oCSP=="YV24" || cplace=="MPEG1" ? 0 : 0 # Chroma vertical shift after scaling
# chshiftb = oCSP=="YV24" || cplace=="MPEG1" ? 0 : 0.25/chratio-0.25 # Chroma horizontal shift before scaling equivalent to that after scaling
# cvshiftb = oCSP=="YV24" || cplace=="MPEG1" ? 0 : 0 # Chroma vertical shift before scaling equivalent to that after scaling
# So we apply shift before scaling to fix the chroma shift
chfix = oCSP=="YV24" || cplace=="MPEG1" ? 0 : 0.25-0.25/chratio # Chroma horizontal shift fixing before scaling
cvfix = oCSP=="YV24" || cplace=="MPEG1" ? 0 : 0 # Chroma vertical shift fixing before scaling
# Weight calculation of adaptive anti-ringing algorithm
res_mul = yhratio * yvratio
res_mul = min(max(res_mul , 1), 2.25)
nr_wght = IsFloat(noring ) ? noring
\ : noring == True ? Spline(res_mul , 1, 0, 2.25, 1, 3.5, 0, True)
\ : 0
nr_wght = min(max(nr_wght , 0), 1)
res_mul_c = chratio * cvratio
res_mul_c = min(max(res_mul_c, 1), 2.25)
nr_wght_c = IsFloat(noring_c) ? noring_c
\ : noring_c == True ? Spline(res_mul_c, 1, 0, 2.25, 1, 3.5, 0, True)
\ : 0
nr_wght_c = min(max(nr_wght_c, 0), 1)
# Apply resize
IsY8 ? \
Eval("""
Ys = input
Yo = Yt ? Ys."""+Resize8_resstr(ow , oh , src_l , src_t , src_w , src_h , kernel , a1 , a2 )+""" : NOP()
Yg = Yt && nr_wght > 0 ? Ys."""+Resize8_resstr(ow , oh , src_l , src_t , src_w , src_h , "Gauss" , 100 )+""" : NOP()
Yr = Yt && nr_wght > 0 ? Yo.Resize8_Repair(Yg, 1, -1) : NOP()
Ym = Yt ? nr_wght == 1 ? Yr : nr_wght > 0 ? Yo.Merge(Yr, nr_wght ) : Yo : Ys.BlankClip(width=ow , height=oh , color_yuv=$808080)
res = Ym
""") : \
IsRGB ? \
Eval("""
As = At ? input.ShowAlpha("Y8") : NOP()
Rs = input.ShowRed ("Y8")
Gs = input.ShowGreen("Y8")
Bs = input.ShowBlue ("Y8")
Ao = At ? As."""+Resize8_resstr(ow , oh , src_l , src_t , src_w , src_h , kernel_c, a1_c, a2_c)+""" : NOP()
Ro = Yt ? Rs."""+Resize8_resstr(ow , oh , src_l , src_t , src_w , src_h , kernel , a1 , a2 )+""" : NOP()
Go = Ut ? Gs."""+Resize8_resstr(ow , oh , src_l , src_t , src_w , src_h , kernel , a1 , a2 )+""" : NOP()
Bo = Vt ? Bs."""+Resize8_resstr(ow , oh , src_l , src_t , src_w , src_h , kernel , a1 , a2 )+""" : NOP()
Ag = At && nr_wght_c > 0 ? As."""+Resize8_resstr(ow , oh , src_l , src_t , src_w , src_h , "Gauss" , 100 )+""" : NOP()
Rg = Yt && nr_wght > 0 ? Rs."""+Resize8_resstr(ow , oh , src_l , src_t , src_w , src_h , "Gauss" , 100 )+""" : NOP()
Gg = Ut && nr_wght > 0 ? Gs."""+Resize8_resstr(ow , oh , src_l , src_t , src_w , src_h , "Gauss" , 100 )+""" : NOP()
Bg = Vt && nr_wght > 0 ? Bs."""+Resize8_resstr(ow , oh , src_l , src_t , src_w , src_h , "Gauss" , 100 )+""" : NOP()
Ar = At && nr_wght_c > 0 ? Ao.Resize8_Repair(Ag, 1, -1) : NOP()
Rr = Yt && nr_wght > 0 ? Ro.Resize8_Repair(Rg, 1, -1) : NOP()
Gr = Ut && nr_wght > 0 ? Go.Resize8_Repair(Gg, 1, -1) : NOP()
Br = Vt && nr_wght > 0 ? Bo.Resize8_Repair(Bg, 1, -1) : NOP()
Am = At ? nr_wght_c == 1 ? Ar : nr_wght_c > 0 ? Ao.Merge(Ar, nr_wght_c) : Ao : NOP()
Rm = Yt ? nr_wght == 1 ? Rr : nr_wght > 0 ? Ro.Merge(Rr, nr_wght ) : Ro : Rs.BlankClip(width=ow , height=oh , color_yuv=$008080)
Gm = Ut ? nr_wght == 1 ? Gr : nr_wght > 0 ? Go.Merge(Gr, nr_wght ) : Go : Gs.BlankClip(width=ow , height=oh , color_yuv=$008080)
Bm = Vt ? nr_wght == 1 ? Br : nr_wght > 0 ? Bo.Merge(Br, nr_wght ) : Bo : Bs.BlankClip(width=ow , height=oh , color_yuv=$008080)
res = At ? MergeARGB(Am, Rm, Gm, Bm) : MergeRGB(Rm, Gm, Bm, sCSP)
""") : \
Eval("""
Ys = input.ConvertToY8()
Us = input.UtoY8()
Vs = input.VtoY8()
Yo = Yt ? Ys."""+Resize8_resstr(ow , oh , src_l , src_t , src_w , src_h , kernel , a1 , a2 )+""" : NOP()
Uo = Ut ? Us."""+Resize8_resstr(owc, ohc, src_lc+chfix, src_tc+cvfix, src_wc, src_hc, kernel_c, a1_c, a2_c)+""" : NOP()
Vo = Vt ? Vs."""+Resize8_resstr(owc, ohc, src_lc+chfix, src_tc+cvfix, src_wc, src_hc, kernel_c, a1_c, a2_c)+""" : NOP()
Yg = Yt && nr_wght > 0 ? Ys."""+Resize8_resstr(ow , oh , src_l , src_t , src_w , src_h , "Gauss" , 100 )+""" : NOP()
Ug = Ut && nr_wght_c > 0 ? Us."""+Resize8_resstr(owc, ohc, src_lc+chfix, src_tc+cvfix, src_wc, src_hc, "Gauss" , 100 )+""" : NOP()
Vg = Vt && nr_wght_c > 0 ? Vs."""+Resize8_resstr(owc, ohc, src_lc+chfix, src_tc+cvfix, src_wc, src_hc, "Gauss" , 100 )+""" : NOP()
Yr = Yt && nr_wght > 0 ? Yo.Resize8_Repair(Yg, 1, -1) : NOP()
Ur = Ut && nr_wght_c > 0 ? Uo.Resize8_Repair(Ug, 1, -1) : NOP()
Vr = Vt && nr_wght_c > 0 ? Vo.Resize8_Repair(Vg, 1, -1) : NOP()
Ym = Yt ? nr_wght == 1 ? Yr : nr_wght > 0 ? Yo.Merge(Yr, nr_wght ) : Yo : Ys.BlankClip(width=ow , height=oh , color_yuv=$808080)
Um = Ut ? nr_wght_c == 1 ? Ur : nr_wght_c > 0 ? Uo.Merge(Ur, nr_wght_c) : Uo : Us.BlankClip(width=owc, height=ohc, color_yuv=$808080)
Vm = Vt ? nr_wght_c == 1 ? Vr : nr_wght_c > 0 ? Vo.Merge(Vr, nr_wght_c) : Vo : Vs.BlankClip(width=owc, height=ohc, color_yuv=$808080)
res = YtoUV(Um, Vm, Ym)
""")
return res
}
Function Resize8_resstr(int "ow", int "oh", float "src_l", float "src_t", float "src_w", float "src_h",
\ string "kernel", float "a1", float "a2")
{
ow = string(ow)
oh = string(oh)
src_l = string(src_l)
src_t = string(src_t)
src_w = string(src_w)
src_h = string(src_h)
resstr = kernel == "Catmull-Rom" ? "BicubicResize ("+ow+", "+oh+", 0.0 , 0.5 , "+src_l+", "+src_t+", "+src_w+", "+src_h+")"
\ : kernel == "Hermite" ? "BicubicResize ("+ow+", "+oh+", 0.0 , 0.0 , "+src_l+", "+src_t+", "+src_w+", "+src_h+")"
\ : kernel == "Mitchell-Netravali" ? "BicubicResize ("+ow+", "+oh+", 1/3. , 1/3. , "+src_l+", "+src_t+", "+src_w+", "+src_h+")"
\ : kernel == "Robidoux" ? "BicubicResize ("+ow+", "+oh+", 0.3782, 0.3109, "+src_l+", "+src_t+", "+src_w+", "+src_h+")"
\ : kernel == "Bicubic" ? "BicubicResize ("+ow+", "+oh+", "+string(Default(a1, 1/3.))+", "+string(Default(a2, 1/3.))+", "+src_l+", "+src_t+", "+src_w+", "+src_h+")"
\ : kernel == "SoftCubic" ? "BicubicResize ("+ow+", "+oh+", "+string(Default(a1/100., 0.75))+", "+string(Default(1-a1/100., 0.25))+", "+src_l+", "+src_t+", "+src_w+", "+src_h+")"
\ : kernel == "SoftCubic100" ? "BicubicResize ("+ow+", "+oh+", 1.0 , 0.0 , "+src_l+", "+src_t+", "+src_w+", "+src_h+")"
\ : LeftStr(kernel, 9) == "SoftCubic" ? "BicubicResize ("+ow+", "+oh+", "+RightStr(kernel, 2)+"/100., 1-"+RightStr(kernel, 2)+"/100., "+src_l+", "+src_t+", "+src_w+", "+src_h+")"
\ : kernel == "Bilinear" ? "BilinearResize("+ow+", "+oh+", "+src_l+", "+src_t+", "+src_w+", "+src_h+")"
\ : kernel == "Blankman" ? "BlackmanResize("+ow+", "+oh+", "+src_l+", "+src_t+", "+src_w+", "+src_h+", "+string(int(Default(a1, 4)))+")"
\ : kernel == "Blankman2" ? "BlackmanResize("+ow+", "+oh+", "+src_l+", "+src_t+", "+src_w+", "+src_h+", 2)"
\ : kernel == "Blankman3" ? "BlackmanResize("+ow+", "+oh+", "+src_l+", "+src_t+", "+src_w+", "+src_h+", 3)"
\ : kernel == "Blankman4" ? "BlackmanResize("+ow+", "+oh+", "+src_l+", "+src_t+", "+src_w+", "+src_h+", 4)"
\ : kernel == "Gauss" ? "GaussResize ("+ow+", "+oh+", "+src_l+", "+src_t+", "+src_w+", "+src_h+", "+string(int(Default(a1, 30)))+")"
\ : kernel == "Gaussian" ? "GaussResize ("+ow+", "+oh+", "+src_l+", "+src_t+", "+src_w+", "+src_h+", "+string(int(Default(a1, 30)))+")"
\ : kernel == "Lanczos" ? "LanczosResize ("+ow+", "+oh+", "+src_l+", "+src_t+", "+src_w+", "+src_h+", "+string(int(Default(a1, 3)))+")"
\ : kernel == "Lanczos2" ? "LanczosResize ("+ow+", "+oh+", "+src_l+", "+src_t+", "+src_w+", "+src_h+", 2)"
\ : kernel == "Lanczos3" ? "LanczosResize ("+ow+", "+oh+", "+src_l+", "+src_t+", "+src_w+", "+src_h+", 3)"
\ : kernel == "Lanczos4" ? "Lanczos4Resize("+ow+", "+oh+", "+src_l+", "+src_t+", "+src_w+", "+src_h+")"
\ : kernel == "Point" ? "PointResize ("+ow+", "+oh+", "+src_l+", "+src_t+", "+src_w+", "+src_h+")"
\ : kernel == "Sinc" ? "SincResize ("+ow+", "+oh+", "+src_l+", "+src_t+", "+src_w+", "+src_h+", "+string(int(Default(a1, 4)))+")"
\ : kernel == "Spline16" ? "Spline16Resize("+ow+", "+oh+", "+src_l+", "+src_t+", "+src_w+", "+src_h+")"
\ : kernel == "Spline36" ? "Spline36Resize("+ow+", "+oh+", "+src_l+", "+src_t+", "+src_w+", "+src_h+")"
\ : kernel == "Spline64" ? "Spline64Resize("+ow+", "+oh+", "+src_l+", "+src_t+", "+src_w+", "+src_h+")"
\ : "Unknown Kernel"
Assert(resstr!="Unknown Kernel", """Resize8: Unsupported "kernel" or "kernel_c"!""")
return resstr
}
Function Resize8_Repair(clip input, clip source, int "mode", int "modeU", int "modeV")
{
try
{
return input.Repair(source, mode, modeU, modeV)
}
catch(error_msg)
{
return input.ConvertToYV12().Repair(source.ConvertToYV12(), mode, modeU, modeV).ConvertToY8()
}
}
Function Resize8_undef() {}
Function GetCSP(clip c)
{
return c.IsPlanar ? c.IsYV12 ? "YV12" :
\ c.IsYV16 ? "YV16" :
\ c.IsYV24 ? "YV24" : c.GetCSP_Y8_YV411() :
\ c.IsYUY2 ? "YUY2" :
\ c.IsRGB32 ? "RGB32" :
\ c.IsRGB24 ? "RGB24" : "Unknown"
Function GetCSP_Y8_YV411(clip c)
{
try
{
c.UtoY()
csp = "YV411"
}
catch ( error_msg )
{
csp = "Y8"
}
return csp
}
}
