Class: Scissor::Fragment

Inherits:
Object
  • Object
show all
Defined in:
lib/scissor/fragment.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(filename, start, duration, reverse = false, pitch = 100) ⇒ Fragment

Returns a new instance of Fragment.



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# File 'lib/scissor/fragment.rb', line 7

def initialize(filename, start, duration, reverse = false, pitch = 100)
  @filename = Pathname.new(filename).realpath
  @start = start
  @duration = duration
  @reverse = reverse
  @pitch = pitch

  freeze
end

Instance Attribute Details

#filename ⇒ Object (readonly)

Returns the value of attribute filename.



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# File 'lib/scissor/fragment.rb', line 5

def filename
  @filename
end

#pitch ⇒ Object (readonly)

Returns the value of attribute pitch.



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# File 'lib/scissor/fragment.rb', line 5

def pitch
  @pitch
end

#start ⇒ Object (readonly)

Returns the value of attribute start.



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# File 'lib/scissor/fragment.rb', line 5

def start
  @start
end

Instance Method Details

#create(remaining_start, remaining_length) ⇒ Object 



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# File 'lib/scissor/fragment.rb', line 29

def create(remaining_start, remaining_length)
  new_fragment = nil

  if remaining_start >= duration
    remaining_start -= duration
  else
    if remaining_start + remaining_length >= duration
      new_fragment = self.class.new(
        filename,
        start + remaining_start * pitch.to_f / 100,
        (duration - remaining_start) * pitch.to_f / 100,
        false,
        pitch)

      remaining_length -= duration - remaining_start
      remaining_start = 0
    else
      new_fragment = self.class.new(
        filename,
        start + remaining_start * pitch.to_f / 100,
        remaining_length * pitch.to_f / 100,
        false,
        pitch)

      remaining_start = 0
      remaining_length = 0
    end
  end

  return new_fragment, remaining_start, remaining_length
end

#duration ⇒ Object 



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# File 'lib/scissor/fragment.rb', line 17

def duration
  @duration * (100 / pitch.to_f)
end

#reversed? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/scissor/fragment.rb', line 25

def reversed?
  @reverse
end

#true_duration ⇒ Object 



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# File 'lib/scissor/fragment.rb', line 21

def true_duration
  @duration
end