Contains the ability to enumerate through the exif tags in an ifd
# File lib/file_data/formats/exif/ifd.rb, line 16 def read_num_tags stream.read_value(2) end
# File lib/file_data/formats/exif/ifd.rb, line 6 def tags_enum Enumerator.new do |e| read_num_tags.times do tag_start_pos = stream.pos e.yield stream.read_value(2) stream.seek(tag_start_pos + TAG_RECORD_SIZE) end end.lazy end
# File lib/file_data/formats/exif/ifd.rb, line 20 def tags_size(num_tags) num_tags * TAG_RECORD_SIZE end