homebrew-core/Formula/fdk-aac-encoder.rb

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class FdkAacEncoder < Formula
desc "Command-line encoder frontend for libfdk-aac"
homepage "https://github.com/nu774/fdkaac"
url "https://github.com/nu774/fdkaac/archive/v0.6.2.tar.gz"
sha256 "de758d6e651e81e9be89d2972612fc5b96cb70321234c3339f35483b636458ad"
2015-07-19 13:55:46 +00:00
bottle do
cellar :any
sha256 "e0a16df6937c67fdbe68a326ba1bcdebfe0ede86f60b98be9645cfe49c0d9adb" => :yosemite
sha256 "7fa6eec6baaf3f62860ccec0a6c27557d8fc9674d2ab9408a8b6159be2101819" => :mavericks
sha256 "5ff4e41972f3b9f9424e49541616f8bda05ccc3b5f707c8be068c60d5bdee725" => :mountain_lion
end
depends_on "autoconf" => :build
depends_on "automake" => :build
depends_on "libtool" => :build
depends_on "pkg-config" => :build
depends_on "fdk-aac"
def install
system "autoreconf", "-i"
system "./configure", "--disable-debug",
"--disable-dependency-tracking",
"--disable-silent-rules",
"--prefix=#{prefix}",
"--mandir=#{man}"
system "make", "install"
end
test do
# generate test tone pcm file
sample_rate = 44100
two_pi = 2 * Math::PI
num_samples = sample_rate
frequency = 440.0
max_amplitude = 0.2
position_in_period = 0.0
position_in_period_delta = frequency / sample_rate
samples = [].fill(0.0, 0, num_samples)
num_samples.times do |i|
samples[i] = Math.sin(position_in_period * two_pi) * max_amplitude
position_in_period += position_in_period_delta
if position_in_period >= 1.0
position_in_period -= 1.0
end
end
samples.map! do |sample|
(sample * 32767.0).round
end
File.open("#{testpath}/tone.pcm", "wb") do |f|
f.syswrite(samples.flatten.pack("s*"))
end
system "#{bin}/fdkaac", "-R", "--raw-channels", "1", "-m",
"1", "#{testpath}/tone.pcm", "--title", "Test Tone"
end
end