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