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require 'formula'
class Ffmpeg < Formula
url 'http://ffmpeg.org/releases/ffmpeg-0.8.tar.bz2'
homepage 'http://ffmpeg.org/'
sha1 '461f87c4fc080e10ac0acc48287aaa706021bbc4'
head 'git://git.videolan.org/ffmpeg.git'
depends_on 'yasm' => :build
depends_on 'x264' => :optional
depends_on 'faac' => :optional
depends_on 'lame' => :optional
depends_on 'theora' => :optional
depends_on 'libvorbis' => :optional
depends_on 'libogg' => :optional
depends_on 'libvpx' => :optional
depends_on 'xvid' => :optional
def install
args = ["--prefix=#{prefix}",
"--enable-gpl",
"--enable-version3",
"--enable-nonfree",
"--enable-hardcoded-tables"]
args << "--enable-libx264" if Formula.factory('x264').installed?
args << "--enable-libfaac" if Formula.factory('faac').installed?
args << "--enable-libmp3lame" if Formula.factory('lame').installed?
args << "--enable-libtheora" if Formula.factory('theora').installed?
args << "--enable-libvorbis" if Formula.factory('libvorbis').installed?
args << "--enable-libvpx" if Formula.factory('libvpx').installed?
args << "--enable-libxvid" if Formula.factory('xvid').installed?
# Enable alternate compilers
args << "--cc=clang" if ENV.use_clang?
args << "--cc=llvm-gcc" if ENV.use_llvm?
args << "--cc=gcc" if ENV.use_gcc?
# For 32-bit compilation under gcc 4.2, see:
# http://trac.macports.org/ticket/20938#comment:22
if MacOS.snow_leopard? and Hardware.is_32_bit?
ENV.append_to_cflags "-mdynamic-no-pic"
end
system "./configure", *args
if MacOS.prefer_64_bit?
inreplace 'config.mak' do |s|
shflags = s.get_make_var 'SHFLAGS'
if shflags.gsub!(' -Wl,-read_only_relocs,suppress', '')
s.change_make_var! 'SHFLAGS', shflags
end
end
end
write_version_file if ARGV.build_head?
system "make install"
end
# Makefile expects to run in git repo and generate a version number
# with 'git describe' command (see version.sh) but Homebrew build
# runs in temp copy created via git checkout-index, so 'git describe'
# does not work. Work around by writing VERSION file in build directory
# to be picked up by version.sh. Note that VERSION file will already
# exist in release versions, so this only applies to git HEAD builds.
def write_version_file
return if File.exists?("VERSION")
git_tag = "UNKNOWN"
Dir.chdir(cached_download) do
ver = `./version.sh`.chomp
if not $?.success? or ver == "UNKNOWN"
# fall back to git
ver = `git describe --tags --match N --always`.chomp
if not $?.success?
opoo "Could not determine build version from git repository - set to #{git_tag}"
else
git_tag = "git-#{ver}"
end
else
git_tag = ver
end
end
File.open("VERSION","w") {|f| f.puts git_tag}
end
end
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