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path: root/pkgs/by-name/va/vapoursynth/package.nix
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{
  lib,
  stdenv,
  fetchFromGitHub,
  pkg-config,
  autoreconfHook,
  makeWrapper,
  runCommandCC,
  runCommand,
  vapoursynth,
  writeText,
  buildEnv,
  zimg,
  libass,
  python3,
  libiconv,
  testers,
  ApplicationServices,
}:

stdenv.mkDerivation rec {
  pname = "vapoursynth";
  version = "69";

  src = fetchFromGitHub {
    owner = "vapoursynth";
    repo = "vapoursynth";
    rev = "R${version}";
    hash = "sha256-T2bCVNH0dLM9lFYChXzvD6AJM3xEtOVCb2tI10tIXJs=";
  };

  patches = [ ./nix-plugin-loader.patch ];

  nativeBuildInputs = [
    pkg-config
    autoreconfHook
    makeWrapper
  ];
  buildInputs =
    [
      zimg
      libass
      (python3.withPackages (
        ps: with ps; [
          sphinx
          cython
        ]
      ))
    ]
    ++ lib.optionals stdenv.isDarwin [
      libiconv
      ApplicationServices
    ];

  enableParallelBuilding = true;

  passthru = rec {
    # If vapoursynth is added to the build inputs of mpv and then
    # used in the wrapping of it, we want to know once inside the
    # wrapper, what python3 version was used to build vapoursynth so
    # the right python3.sitePackages will be used there.
    inherit python3;

    withPlugins = import ./plugin-interface.nix {
      inherit
        lib
        python3
        buildEnv
        writeText
        runCommandCC
        stdenv
        runCommand
        vapoursynth
        makeWrapper
        withPlugins
        ;
    };

    tests.version = testers.testVersion {
      package = vapoursynth;
      # Check Core version to prevent false positive with API version
      version = "Core R${version}";
    };
  };

  postInstall = ''
    wrapProgram $out/bin/vspipe \
        --prefix PYTHONPATH : $out/${python3.sitePackages}

    # VapourSynth does not include any plugins by default
    # and emits a warning when the system plugin directory does not exist.
    mkdir $out/lib/vapoursynth
  '';

  meta = with lib; {
    broken = stdenv.isDarwin; # see https://github.com/NixOS/nixpkgs/pull/189446 for partial fix
    description = "Video processing framework with the future in mind";
    homepage = "http://www.vapoursynth.com/";
    license = licenses.lgpl21;
    platforms = platforms.x86_64;
    maintainers = with maintainers; [
      rnhmjoj
      sbruder
      snaki
    ];
    mainProgram = "vspipe";
  };
}