Exif library for AS3

This library can read and parse Exif information about a JPEG file. The Exif contains various information about the JPEG file such as the thumbnail image of the JPEG file, image resolution and so on.

See http://www.exif.org/Exif2-2.PDF for details of Exif specification.

Demo

You can see a demo SWF in here (source code of this demo).

Download

You can download this library from CodeRepos by using Subversion. This is the only way to obtain this library for now.

To download Exif library for AS3, use following command:

% svn co http://svn.coderepos.org/share/lang/actionscript/ExifInfo .

Examples

Display thumbnail image

The following code displays original JPEG image and thumbnail image.

import jp.shichiseki.exif.*;
var loader:ExifLoader = new ExifLoader();
private function loadImage():void {

  loader.addEventListener(Event.COMPLETE, onComplete);

  loader.load(new URLRequest(“http://www.example.com/sample.jpg”));

}
private function onComplete(e:Event):void {

  // display image

  addChild(loader);

  // display thumbnail image

  var thumbLoader:Loader = new Loader();

  thumbLoader.loadBytes(loader.exif.thumbnailData);

  addChild(thumbLoader);

}

Show Exif IFD informations

The following code shows Exif IFD information.

import jp.shichiseki.exif.*;
var loader:ExifLoader = new ExifLoader();
private function loadImage():void {

  loader.addEventListener(Event.COMPLETE, onComplete);

  loader.load(new URLRequest(“http://www.example.com/sample.jpg”));

}
private function onComplete(e:Event):void {

  if (loader.exif.ifds.primary)

    displayIFD(loader.exif.ifds.primary);

  if (loader.exif.ifds.exif)

    displayIFD(loader.exif.ifds.exif);

  if (loader.exif.ifds.gps)

    displayIFD(loader.exif.ifds.gps);

  if (loader.exif.ifds.interoperability)

    displayIFD(loader.exif.ifds.interoperability);

  if (loader.exif.ifds.thumbnail)

    displayIFD(loader.exif.ifds.thumbnail);

}
private function displayIFD(ifd:IFD):void {

  trace(” — ” + ifd.level + ” — “);

  for (var entry:String in ifd) {

    trace(entry + “: ” + ifd[entry]);

  }

}