exif

Dart module to decode Exif data from tiff and jpeg files.

Dart port of ianaré sévi's EXIF library: https://github.com/ianare/exif-py.

Installation

Depend on it

Add this to your package's pubspec.yaml file:

dependencies:
  exif: 

Install it

You can install packages from the command line:

$ pub get

Usage

Simple example:

printExifOf(String path) async {

  Map<String, IfdTag> data = await readExifFromFile(new File(path));

  if (data == null || data.isEmpty) {
    printFunc("No EXIF information found\n");
    return;
  }

  if (data.containsKey('JPEGThumbnail')) {
    printFunc('File has JPEG thumbnail');
    data.remove('JPEGThumbnail');
  }
  if (data.containsKey('TIFFThumbnail')) {
    printFunc('File has TIFF thumbnail');
    data.remove('TIFFThumbnail');
  }

  for (String key in data.keys) {
    printFunc("$key (${data[key].tagType}): ${data[key]}");
  }
  
}

Read from bytes:

printExifOf(String path) async {

  Map<String, IfdTag> data = await readExifFromBytes(await new File(path).readAsBytes());

  if (data == null || data.isEmpty) {
    printFunc("No EXIF information found\n");
    return;
  }

  if (data.containsKey('JPEGThumbnail')) {
    printFunc('File has JPEG thumbnail');
    data.remove('JPEGThumbnail');
  }
  if (data.containsKey('TIFFThumbnail')) {
    printFunc('File has TIFF thumbnail');
    data.remove('TIFFThumbnail');
  }

  for (String key in data.keys) {
    printFunc("$key (${data[key].tagType}): ${data[key]}");
  }
  
}