Class: FFMPEG::Transcoder

Inherits:
Object
  • Object
show all
Defined in:
lib/ffmpeg/transcoder.rb

Constant Summary collapse

@@timeout = 
30

Class Attribute Summary collapse

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(input, output_file, options = EncodingOptions.new, transcoder_options = {}) ⇒ Transcoder 



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# File 'lib/ffmpeg/transcoder.rb', line 13

def initialize(input, output_file, options = EncodingOptions.new, transcoder_options = {})
  if input.is_a?(FFMPEG::Movie)
    @movie = input
    @input = input.path
  end
  @output_file = output_file

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

  @transcoder_options = transcoder_options
  @errors = []

  apply_transcoder_options

  @input = @transcoder_options[:input] unless @transcoder_options[:input].nil?

  input_options = @transcoder_options[:input_options] || []
  iopts = []
  input_options.each { |k, v| iopts += ['-' + k.to_s, v] }

  @command = [FFMPEG.ffmpeg_binary, '-y', *iopts, '-i', @input, *@raw_options.to_a, @output_file]
end

Class Attribute Details

.timeout ⇒ Object

Returns the value of attribute timeout.



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# File 'lib/ffmpeg/transcoder.rb', line 10

def timeout
  @timeout
end

Instance Attribute Details

#command ⇒ Object (readonly)

Returns the value of attribute command.



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# File 'lib/ffmpeg/transcoder.rb', line 5

def command
  @command
end

#input ⇒ Object (readonly)

Returns the value of attribute input.



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# File 'lib/ffmpeg/transcoder.rb', line 5

def input
  @input
end

Instance Method Details

#encoded ⇒ Object 



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# File 'lib/ffmpeg/transcoder.rb', line 58

def encoded
  @encoded ||= Movie.new(@output_file)
end

#encoding_succeeded? ⇒ Boolean 



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# File 'lib/ffmpeg/transcoder.rb', line 52

def encoding_succeeded?
  @errors << "no output file created" and return false unless File.exist?(@output_file)
  @errors << "encoded file is invalid" and return false unless encoded.valid?
  true
end

#run(&block) ⇒ Object 



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# File 'lib/ffmpeg/transcoder.rb', line 42

def run(&block)
  transcode_movie(&block)
  if @transcoder_options[:validate]
    validate_output_file(&block)
    return encoded
  else
    return nil
  end
end

#timeout ⇒ Object 



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# File 'lib/ffmpeg/transcoder.rb', line 62

def timeout
  self.class.timeout
end