Nom-Exif

Exif/metadata parsing library written in pure Rust with nom.

Supported File Types

• Images
  • JPEG
  • HEIF/HEIC
• Videos
  • MOV
  • MP4

Features

• Zero-copy when appropriate: Use borrowing and slicing instead of copying whenever possible.
• Minimize I/O operations: When metadata is stored at the end/middle of a large file (such as a MOV/HEIC file does), Seek rather than Read to quickly locate the location of the metadata.
• Pay as you go: When extracting Exif data, only the information corresponding to the specified Exif tags are parsed to reduce the overhead when processing a large number of files.

Usage

• Images
  • parse_heif_exif
  • parse_jpeg_exif
• Videos
  • parse_metadata
• examples

CLI Tool rexiftool

Normal output

cargo run --example rexiftool testdata/meta.mov:

com.apple.quicktime.make                => Apple
com.apple.quicktime.model               => iPhone X
com.apple.quicktime.software            => 12.1.2
com.apple.quicktime.location.ISO6709    => +27.1281+100.2508+000.000/
com.apple.quicktime.creationdate        => 2019-02-12T15:27:12+08:00
duration                                => 500
width                                   => 720
height                                  => 1280

Json dump

cargo run --features json_dump --example rexiftool -- -j testdata/meta.mov:

{
  "height": "1280",
  "duration": "500",
  "width": "720",
  "com.apple.quicktime.creationdate": "2019-02-12T15:27:12+08:00",
  "com.apple.quicktime.make": "Apple",
  "com.apple.quicktime.model": "iPhone X",
  "com.apple.quicktime.software": "12.1.2",
  "com.apple.quicktime.location.ISO6709": "+27.1281+100.2508+000.000/"
}