ffmpeg.rb

class Ffmpeg < Formula
  desc "Play, record, convert, and stream audio and video"
  homepage "https://ffmpeg.org/"
  url "https://ffmpeg.org/releases/ffmpeg-5.0.tar.xz"
  sha256 "51e919f7d205062c0fd4fae6243a84850391115104ccf1efc451733bc0ac7298"
  # None of these parts are used by default, you have to explicitly pass `--enable-gpl`
  # to configure to activate them. In this case, FFmpeg's license changes to GPL v2+.
  license "GPL-2.0-or-later"
  head "https://github.com/FFmpeg/FFmpeg.git", branch: "master"

  livecheck do
    url "https://ffmpeg.org/download.html"
    regex(/href=.*?ffmpeg[._-]v?(\d+(?:\.\d+)+)\.t/i)
  end

  bottle do
    sha256 arm64_monterey: "f807e6b2e26f5ddce60ca8f15b919c062b562f1b43d8a2c069ee9e05909f37c9"
    sha256 arm64_big_sur:  "5b1cc9597fe6c19ddf2cf500776af90f6760df1fe4c8d07d13b57f41bda7eb8e"
    sha256 monterey:       "6d42fbce2174305767276f48ae0ab1d28c1584b6ad74886f0245f9eb3afbdca2"
    sha256 big_sur:        "0059bc1449f6215d2a2b94958b8e77e36e08d90accef23be53f3e15f949ba570"
    sha256 catalina:       "fa7fbd12e162d3d15b1f4d51225fdb68f6fdb264935b2837e9b9f2633c1f0886"
    sha256 x86_64_linux:   "f1d6f528baff08e5d093d199e321cf3cb535d35b660b8d1b29ab14066e1436e1"
  end

  depends_on "nasm" => :build
  depends_on "pkg-config" => :build
  depends_on "aom"
  depends_on "dav1d"
  depends_on "fontconfig"
  depends_on "freetype"
  depends_on "frei0r"
  depends_on "gnutls"
  depends_on "lame"
  depends_on "libass"
  depends_on "libbluray"
  depends_on "librist"
  depends_on "libsoxr"
  depends_on "libvidstab"
  depends_on "libvmaf"
  depends_on "libvorbis"
  depends_on "libvpx"
  depends_on "opencore-amr"
  depends_on "openjpeg"
  depends_on "opus"
  depends_on "rav1e"
  depends_on "rubberband"
  depends_on "sdl2"
  depends_on "snappy"
  depends_on "speex"
  depends_on "srt"
  depends_on "tesseract"
  depends_on "theora"
  depends_on "webp"
  depends_on "x264"
  depends_on "x265"
  depends_on "xvid"
  depends_on "xz"
  depends_on "zeromq"
  depends_on "zimg"

  uses_from_macos "bzip2"
  uses_from_macos "libxml2"
  uses_from_macos "zlib"

  on_linux do
    depends_on "libxv"
    depends_on "gcc" # because rubbernand is compiled with gcc
  end

  fails_with gcc: "5"

  def install
    args = %W[
      --prefix=#{prefix}
      --enable-shared
      --enable-pthreads
      --enable-version3
      --cc=#{ENV.cc}
      --host-cflags=#{ENV.cflags}
      --host-ldflags=#{ENV.ldflags}
      --enable-ffplay
      --enable-gnutls
      --enable-gpl
      --enable-libaom
      --enable-libbluray
      --enable-libdav1d
      --enable-libmp3lame
      --enable-libopus
      --enable-librav1e
      --enable-librist
      --enable-librubberband
      --enable-libsnappy
      --enable-libsrt
      --enable-libtesseract
      --enable-libtheora
      --enable-libvidstab
      --enable-libvmaf
      --enable-libvorbis
      --enable-libvpx
      --enable-libwebp
      --enable-libx264
      --enable-libx265
      --enable-libxml2
      --enable-libxvid
      --enable-lzma
      --enable-libfontconfig
      --enable-libfreetype
      --enable-frei0r
      --enable-libass
      --enable-libopencore-amrnb
      --enable-libopencore-amrwb
      --enable-libopenjpeg
      --enable-libspeex
      --enable-libsoxr
      --enable-libzmq
      --enable-libzimg
      --disable-libjack
      --disable-indev=jack
    ]

    # Needs corefoundation, coremedia, corevideo
    args << "--enable-videotoolbox" if OS.mac?

    # Replace hardcoded default VMAF model path
    %w[doc/filters.texi libavfilter/vf_libvmaf.c].each do |f|
      inreplace f, "/usr/local/share/model", HOMEBREW_PREFIX/"share/libvmaf/model"
      # Since libvmaf v2.0.0, `.pkl` model files have been deprecated in favor of `.json` model files.
      inreplace f, "vmaf_v0.6.1.pkl", "vmaf_v0.6.1.json"
    end

    system "./configure", *args
    system "make", "install"

    # Build and install additional FFmpeg tools
    system "make", "alltools"
    bin.install Dir["tools/*"].select { |f| File.executable? f }

    # Fix for Non-executables that were installed to bin/
    mv bin/"python", pkgshare/"python", force: true
  end

  test do
    # Create an example mp4 file
    mp4out = testpath/"video.mp4"
    system bin/"ffmpeg", "-filter_complex", "testsrc=rate=1:duration=1", mp4out
    assert_predicate mp4out, :exist?
  end
end