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HOW TO BUILD

  1. Checkout zimg into ..$(SolutionDir).
  2. Checkout the latest AviSynthPlus into ..$(SolutionDir).
  3. Use provided solution file.
  4. ???
  5. Prophet

HOW TO USE

AviSynth compatibility mode

  • z_PointResize(clip, int target_width, int target_height, float "src_left", float "src_top", float "src_width", float "src_height", string "chromaloc_op", string "dither")
  • z_BilinearResize(clip, int target_width, int target_height, float "src_left", float "src_top", float "src_width", float "src_height", string "chromaloc_op", string "dither")
  • z_BicubicResize(clip, int target_width, int target_height, float "src_left", float "src_top", float "src_width", float "src_height", string "chromaloc_op", string "dither")
  • z_LanczosResize(clip, int target_width, int target_height, float "src_left", float "src_top", float "src_width", float "src_height", string "chromaloc_op", string "dither")
  • z_Lanczos4Resize(clip, int target_width, int target_height, float "src_left", float "src_top", float "src_width", float "src_height", string "chromaloc_op", string "dither")
  • z_Spline16Resize(clip, int target_width, int target_height, float "src_left", float "src_top", float "src_width", float "src_height", string "chromaloc_op", string "dither")
  • z_Spline36Resize(clip, int target_width, int target_height, float "src_left", float "src_top", float "src_width", float "src_height", string "chromaloc_op", string "dither")
  • z_Spline64Resize(clip, int target_width, int target_height, float "src_left", float "src_top", float "src_width", float "src_height", string "chromaloc_op", string "dither")

chromaloc_op - see below for the valid values; dither (same as dither_type) - see below for the valid values;

VapourSynth compatibility mode

z_ConvertFormat(
    clip clip,
    int "width",
    int "height",
    str "pixel_type",
    str "colorspace_op",
    str "chromaloc_op",
    bool "interlaced",
    float "src_left",
    float "src_top",
    float "src_width",
    float "src_height",
    str "resample_filter",
    float "filter_param_a",
    float "filter_param_b",
    str "resample_filter_uv",
    float "filter_param_a_uv",
    float "filter_param_b_uv",
    str "dither_type",
	str "cpu_type",
	float "nominal_luminance",
	bool "approximate_gamma",
    bool "prefer_props")
  • width: output width in pixels
  • height: output height in pixels
  • pixel_type:
    "YV24" ("YUV444", "YUV444P8"), "YV16" ("YUV422", "YUV422P8"), "YV12" ("YUV420", "YUV420P8"), "YV411" ("YUV411", "YUV411P8"), "Y8",
    "YUV444P10", "YUV422P10", "YUV420P10", "Y10",
    "YUV444P12", "YUV422P12", "YUV420P12", "Y12",
    "YUV444P14", "YUV422P14", "YUV420P14", "Y14",
    "YUV444P16", "YUV422P16", "YUV420P16", "Y16",
    "YUV444PS", "YUV422PS", "YUV420PS", "Y32",
    "RGBP" ("RGBP8"),
    "RGBP10",
    "RGBP12",
    "RGBP14",
    "RGBP16",
    "RGBPS",
    "RGBAP" ("RGBAP8"),
    "RGBAP10",
    "RGBAP12",
    "RGBAP14",
    "RGBAP16",
    "RGBAPS",
    "YUVA444" ("YUVA444P8"), "YUVA422" ("YUVA422P8"), "YUVA420" (YUVA420P8"),
    "YUVA444P10", "YUVA422P10", "YUVA420P10",
    "YUVA444P12", "YUVA422P12", "YUVA420P12",
    "YUVA444P14", "YUVA422P14", "YUVA420P14",
    "YUVA444P16", "YUVA422P16", "YUVA420P16",
    "YUVA444PS", "YUVA422PS", "YUVA420PS"
    
  • colorspace_op:
    • matrix
      "rgb" (0),
      "709" (1),
      "unspec" (2),
      "fcc" (4),
      "470bg" ("601") (5),
      "170m" (6), (Equivalent to 470bg)
      "240m" (7),
      "ycgco" (8),
      "2020ncl" ("2020") (9), 
      "2020cl" (10),
      "chromancl" (12),
      "chromacl" (13),
      "ictcp" (14)
      
    • transfer
      "709" (1),
      "unspec" (2),
      "470m" (4),
      "470bg" (5),
      "601" (6), (Equivalent to 709)
      "240m" (7), 
      "linear" (8),
      "log100" (9),
      "log316" (10),
      "xvycc" (11),
      "srgb" (13),
      "2020_10" ("2020") (14), (Equivalent to 709)
      "2020_12" (15), (Equivalent to 709)
      "st2084" (16),
      "std-b67" (18)
      
    • primaries
      "709" (1),
      "unspec" (2),
      "470m" (4),
      "470bg" (5),
      "170m" (6),
      "240m" (7), (Equivalent to 170m)
      "film" (8),
      "2020" (9),
      "st428" ("xyz") (10),
      "st431-2" ("dci-p3") (11),
      "st432-1" ("display-p3") (12),
      "jedec-p22" (22)
      
    • range
      "limited" ("l") (1),
      "full" ("f") (0)
      

Format is: "matS[:transS[:primS[:rangeS]]]=>matD[:transD[:primD[:rangeD]]]" Example JPEG to MPEG: "170m:709:709:f=>709:709:709:l" There is keyword "auto" for source matrix, transfer, primaries, range. When it's used the corresponding input frame properties are used, if such frame properties don't exist either an error is arised or default matrix and color range are used. There is keyword "same" for destination matrix, transfer, primaries, range. When it's used the corresponding source value is applied for destination too so there is no conversion.

  • chromaloc_op (default left):
    "left" ("mpeg2") (0),
    "center" ("jpeg", "mpeg1") (1),
    "top_left" (2),
    "top" (3),
    "bottom_left" (4),
    "bottom" (5)
    

Format is" "[locS]=>[locD]" Example JPEG to MPEG2: "center=>left" There is keyword "auto" for source chromaloc_op. When it's used the corresponding input frame property is used, if such frame property doesn't exist default chromaloc is used. There is keyword "same" for destination chromaloc_op. When it's used the corresponding source value is applied for destination too so there is no conversion.

  • interlaced (default: false): whether to use interlaced mode
  • resample_filter (default bicubic 0/0.5):
    "point",
    "bilinear",
    "bicubic",
    "spline16",
    "spline36",
    "spline64",
    "lanczos"
    
  • filter_param_a: first parameter to resampler
  • filter_param_b: second parameter to resampler Example Bicubic (Mitchell-Netravali): resample_filter="bicubic", filter_param_a=0.333, filter_param_b=0.333 Example 4-tap Lanczos: resample_filter="lanczos", filter_param_a=4
  • resample_filter_uv: resampling mode for chroma (same filters as "resample_filter")
  • filter_param_a_uv: first parameter to chroma resampler
  • filter_param_b_uv: second parameter to chroma resampler
  • dither_type (default "none"):
    "none",
    "ordered",
    "random",
    "error_diffusion"
    
  • cpu_type:
    "none",
    "avx",
    "avx_e" ("ivy"),
    "avx2",
    "avx512f,
    "avx512_skx" ("skx"),
    "avx512_clx",
    "avx512_pmc" ("cannon"),
    "avx512_snc" ("ice"))
    
  • nominal_luminance (default 100.0): nominal peak luminance in cd/m^2 for standard-dynamic range (SDR) systems (more info here)
  • approximate_gamma (default true): evaluating transfer functions at reduced precision

The names of the frame properties that are read and set are: _ChromaLocation, _ColorRange, _Matrix, _Transfer, _Primaries, _SARNum, _SARDen. The frame properties read and set the corresponding numerical index of the parameters. For example: matrix "709" has numerical index 1 and the frame property have value of 1.

See VapourSynth documentation for valid string constants.

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