Crate exif

This is a pure-Rust library to parse Exif data. This library can parse TIFF and JPEG images and extract Exif attributes.

Examples

An example to parse JPEG/TIFF files:

for path in &["tests/exif.jpg", "tests/exif.tif"] {
    let file = std::fs::File::open(path).unwrap();
    let reader = exif::Reader::new(
        &mut std::io::BufReader::new(&file)).unwrap();
    for f in reader.fields() {
        println!("{} {} {}",
                 f.tag, f.thumbnail, f.value.display_as(f.tag));
    }
}

Compatibility

Major changes between 0.2.3 and 0.3 are listed below.

• Enum Error has two new variants: TooBig and NotSupported.
• Value::Undefined has the 2nd member to keep the offset of the value.
• Struct DateTime has two new fields: nanosecond and offset.
• The tag constants have been changed to associated constants of struct Tag. Use Tag::TagName instead of tag::TagName.

Modules

experimental	The interfaces in this module are experimental and unstable.
tag	A module that contains Exif tag constants.

Structs

DateTime	A struct used to parse a DateTime field.
Field	A TIFF field.
Rational	An unsigned rational number, which is a pair of 32-bit unsigned integers.
Reader	The Reader struct reads a JPEG or TIFF image, parses the Exif attributes in it, and holds the results.
SRational	A signed rational number, which is a pair of 32-bit signed integers.
Tag	A tag of a TIFF field.

Enums

Context	An enum that indicates how a tag number is interpreted.
Error	An error type returned when parsing Exif data.
Value	Types and values of TIFF fields (for Exif attributes).

Functions

get_exif_attr_from_jpeg	Get the Exif attribute information segment from a JPEG file.
parse_exif	Parse the Exif attributes in the TIFF format.