class RubberBand::Processor

Attributes

command[R]

Public Class Methods

new(input_file, output_file, options = Options.new) click to toggle source
# File lib/rubberband/processor.rb, line 8
def initialize(input_file, output_file, options = Options.new)
  @input_file = input_file
  @output_file = output_file
  @errors = []

  if options.is_a?(String) || options.is_a?(Options)
    @raw_options = options
  elsif options.is_a?(Hash)
    @raw_options = Options.new(options)
  else
    raise ArgumentError, "Unknown options format '#{options.class}', should be either EncodingOptions, Hash or String."
  end
end

Public Instance Methods

binary() click to toggle source
# File lib/rubberband/processor.rb, line 22
def binary
  binary_path = `which rubberband`
  if $? == 0
    binary_path.strip
  else
    raise "rubberband binary not found!"
  end
end
convert_succeeded?() click to toggle source
# File lib/rubberband/processor.rb, line 49
def convert_succeeded?
  unless File.exists?(@output_file)
    @errors << "no output file created"
    return false
  end
  true
end
run() click to toggle source
# File lib/rubberband/processor.rb, line 31
def run
  @command = "#{binary} #{@raw_options} '#{Shellwords.escape(@input_file)}' '#{Shellwords.escape(@output_file)}'"
  output  = ""

  Open3.popen3(@command) do |stdin, stdout, stderr|
    stderr.each("r") do |line| 
      output << line
    end
  end

  if convert_succeeded?
    true
  else
    errors = @errors.empty? ? "" : " Errors: #{@errors.join(", ")}. "
    raise "Failed encoding: #{errors}. \nCommand: #{@command}. \nFull output: #{output}"
  end
end