exif_parser v0.2.4 ExifParser.ImageFileDirectory View Source
Tiff Image File Directory parser. Parses the IFD that provides the number of tags in the IFD and offset from the start of the file buffer.
Struct
num_entries
The length of the IFD desciptor helps in parsing the IFD. This can be used to find the end of the IFD.
tag_lists
This holds the map of tags. The keys in the map are tag_names and the values are tag_values.
offset
This represents the non-neg-integer that gives the number of bytes offset from the start of tiff buffer.
Link to this section Summary
Functions
This method parses the ifds that are reachable, given the endianess, tiff_buffer, and the offset
The IFDs are parsed from the tiff buffer. The map keys for the IFDs are updated and prettified if passed as argument
Link to this section Types
t() :: %ExifParser.ImageFileDirectory{ num_entries: non_neg_integer(), offset: non_neg_integer(), tag_lists: map() }
Link to this section Functions
parse_ifds( endian :: :little | :big, start_of_tiff :: binary(), offset :: non_neg_integer(), tag_type :: ExifParser.Tag.LookUp.tag_type() ) :: [ExifParser.ImageFileDirectory]
This method parses the ifds that are reachable, given the endianess, tiff_buffer, and the offset.
The IFD are first found and the tags in each of them parsed.
parse_tiff_body( endian :: :little | :big, start_of_tiff :: binary(), offset :: non_neg_integer(), prettify :: Boolean ) :: %{atom: ExifParser.ImageFileDirectory}
The IFDs are parsed from the tiff buffer. The map keys for the IFDs are updated and prettified if passed as argument.
The output is made pretty by default.