Class: Zappa::SubChunkHeader

Inherits:
Object
  • Object
show all
Defined in:
lib/zappa/wave/sub_chunk_header.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(data = nil) ⇒ SubChunkHeader

Returns a new instance of SubChunkHeader.



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# File 'lib/zappa/wave/sub_chunk_header.rb', line 5

def initialize(data = nil)
  @chunk_id = nil
  @chunk_size = 0
  unpack(data) if data
end

Instance Attribute Details

#chunk_id ⇒ Object

Returns the value of attribute chunk_id.



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# File 'lib/zappa/wave/sub_chunk_header.rb', line 3

def chunk_id
  @chunk_id
end

#chunk_size ⇒ Object

Returns the value of attribute chunk_size.



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# File 'lib/zappa/wave/sub_chunk_header.rb', line 3

def chunk_size
  @chunk_size
end

Instance Method Details

#==(other) ⇒ Object 



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# File 'lib/zappa/wave/sub_chunk_header.rb', line 20

def ==(other)
  other.chunk_size == @chunk_size && other.chunk_id = @chunk_id
end

#pack ⇒ Object 



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# File 'lib/zappa/wave/sub_chunk_header.rb', line 11

def pack
  @chunk_id + [@chunk_size].pack('V')
end

#unpack(data) ⇒ Object 



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# File 'lib/zappa/wave/sub_chunk_header.rb', line 15

def unpack(data)
  @chunk_id = data.byteslice(0, 4)
  @chunk_size = data.byteslice(4, 4).unpack('V').first
end