Class: EXIFR::JPEG::Reader

Inherits:
SimpleDelegator
  • Object
show all
Defined in:
lib/exifr/jpeg.rb

Instance Method Summary collapse

Instance Method Details

#next ⇒ Object 



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# File 'lib/exifr/jpeg.rb', line 91

def next
  c = readbyte while c != 0xFF
  c = readbyte while c == 0xFF
  c
end

#readbyte ⇒ Object 



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# File 'lib/exifr/jpeg.rb', line 87

def readbyte; readchar; end

#readframe ⇒ Object 



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# File 'lib/exifr/jpeg.rb', line 89

def readframe; read(readint - 2); end

#readint ⇒ Object 



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# File 'lib/exifr/jpeg.rb', line 88

def readint; (readbyte << 8) + readbyte; end

#readsof ⇒ Object 



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# File 'lib/exifr/jpeg.rb', line 90

def readsof; [readint, readbyte, readint, readint, readbyte]; end