Class: Media::Command::Converter

Inherits:
Object
  • Object
show all
Defined in:
lib/media/command/converter.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(args = {}, &block) ⇒ Converter

Returns a new instance of Converter.



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# File 'lib/media/command/converter.rb', line 11

def initialize(args={}, &block)
  @options = Array args.fetch(:options, [])
  @inputs  = Array args.fetch(:inputs, [])
  @outputs = Array args.fetch(:outputs, [])
  
  @cmd      = args.fetch(:cmd, 'ffmpeg')
  @subshell = args.fetch(:subshell, Subshell)
  @progress = args.fetch(:progress, Progress)
  
  block.arity < 1 ? instance_eval(&block) : block.call(self) if block_given?
end

Instance Attribute Details

#inputs ⇒ Object

Returns the value of attribute inputs.



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# File 'lib/media/command/converter.rb', line 9

def inputs
  @inputs
end

#options(value = nil) ⇒ Object Also known as: options=

Returns the value of attribute options.



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# File 'lib/media/command/converter.rb', line 9

def options
  @options
end

#outputs ⇒ Object

Returns the value of attribute outputs.



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# File 'lib/media/command/converter.rb', line 9

def outputs
  @outputs
end

Instance Method Details

#add_input(url, &block) ⇒ Object Also known as: input 



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# File 'lib/media/command/converter.rb', line 54

def add_input(url, &block)
  @inputs << Input.new(url: url, &block)
end

#add_output(url, &block) ⇒ Object Also known as: output 



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# File 'lib/media/command/converter.rb', line 59

def add_output(url, &block)
  @outputs << Output.new(url: url, &block)
end

#call(&blk) ⇒ Object 



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# File 'lib/media/command/converter.rb', line 23

def call(&blk)
  progress = @progress.new
  
  process = @subshell.new(cmd: to_a).call do |line|   
    progress.update(line, &blk)
  end
  progress.complete(&blk) if process.success?
  
  process
end

#to_a ⇒ Object 



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# File 'lib/media/command/converter.rb', line 34

def to_a
  [
    @cmd,
    (required_options + options).map(&:to_a),
    inputs.map(&:to_a),
    outputs.map(&:to_a)
  ].flatten
end

#to_s ⇒ Object 



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# File 'lib/media/command/converter.rb', line 43

def to_s
  to_a.join(' ')
end