Class: EXIFR::JPEG::Reader

Inherits:

SimpleDelegator

• Object
• SimpleDelegator
• EXIFR::JPEG::Reader

Defined in:

lib/exifr/jpeg.rb

Instance Method Summary

• #next ⇒ Object
• #readbyte ⇒ Object
• #readframe ⇒ Object
• #readint ⇒ Object
• #readsof ⇒ Object

Instance Method Details

#next ⇒ Object

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

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

#readbyte ⇒ Object

# File 'lib/exifr/jpeg.rb', line 83

def readbyte; readchar; end

#readframe ⇒ Object

# File 'lib/exifr/jpeg.rb', line 85

def readframe; read(readint - 2); end

#readint ⇒ Object

# File 'lib/exifr/jpeg.rb', line 84

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

#readsof ⇒ Object

# File 'lib/exifr/jpeg.rb', line 86

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