class Mvtools < Formula
  desc "Filters for motion estimation and compensation"
  homepage "https://github.com/dubhater/vapoursynth-mvtools"
  url "https://github.com/dubhater/vapoursynth-mvtools/archive/v17.tar.gz"
  sha256 "739656d8ea3fb864b72e3e3d167dc1f7fdb8feff4e396cdf9414b367621ca011"
  head "https://github.com/dubhater/vapoursynth-mvtools.git"

  bottle do
    cellar :any
    sha256 "818decc6115f204d38f9ff41134943318ad79e44176e85df3daa8a6e0dafe59f" => :sierra
    sha256 "80a885159e3e524a103f06aa1450164f6eead929a4701f56fef1aae20d1f750d" => :el_capitan
  end

  depends_on "pkg-config" => :build
  depends_on "yasm" => :build
  depends_on "vapoursynth"
  depends_on "fftw"
  depends_on "autoconf" => :build
  depends_on "automake" => :build
  depends_on "libtool" => :build
  depends_on :macos => :el_capitan # due to zimg

  def install
    system "./autogen.sh"
    system "./configure", "--prefix=#{prefix}"
    system "make", "install"
  end

  def caveats
    <<-EOS.undent
      MVTools will not be autoloaded in your VapourSynth scripts. To use it
      use the following code in your scripts:

        core.std.LoadPlugin(path="#{HOMEBREW_PREFIX}/lib/libmvtools.dylib")
    EOS
  end

  test do
    script = <<-PYTHON.undent.split("\n").join(";")
      import vapoursynth as vs
      core = vs.get_core()
      core.std.LoadPlugin(path="#{HOMEBREW_PREFIX}/lib/libmvtools.dylib")
    PYTHON

    system "python3", "-c", script
  end
end