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function RGB48YV12toRGB48Y(clip c)
{
    vers = VersionNumber()
    tPref = IsFunction("FTurnLeft") ? "F" : ""
    w = c.Width
    h = c.Height
    
    y = (vers < 2.60) ? c : c.ConvertToY8()
    u = (vers < 2.60) ? c.UtoY() : c.UtoY8()
    v = (vers < 2.60) ? c.VtoY() : c.VtoY8()

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###### nnedi3_resize16 v3.0      ######      by mawen1250      ######      2013.11.15      ######
###### from v2.8 on, nnedi3_resize16 only supports AviSynth v2.6                           ######
###### Requirements: masktools v2.0a48, dither v1.24.0, nnedi3 v0.9.4,                     ######
######               SmoothAdjust v2.90, Contra-Sharpen mod 3.4,                           ######
######               FTurn v1.3.5 (not necessarily required but will improve speed)        ######
###### Accept Y8, YV12, YV16, YV24 input, use nnedi3 and Dither_resize16(nr) for scaling   ######
###### output format can be 8bit/16bit Y8/YV12/YV16/YV24 or RGB32/RGB24/RGB48YV12/RGB48Y   ######


Function nnedi3_resize16(clip input, int "target_width", int "target_height", float "src_left", float "src_top",

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function StackedNto16(clip c, int n)
{
    Assert(8 <= n <= 15, "StackedNto16: bitdepth should be in range 8-15")
    h = c.Height / 2
    msb = c.Crop(0,0,0,-h)
    lsb = c.Crop(0,h,0,0)
    shamt = string(16-n)
     
    msb16 = (n != 8) ? msb.mt_lutxy(lsb, "x " + shamt + " << y 8 " + shamt + " - >> +", v=3, u=3) : lsb
    lsb16 = (n != 8) ? lsb.mt_lut("x " + shamt + " << 255 &u", v=3, u=3) : msb