Initial commit

.gitignore

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+node_modules

.npmignore

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+support
+test
+examples
+*.sock

History.md

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+
+0.0.1 / 2010-01-03
+==================
+
+  * Initial release

Makefile

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+
+test:
+	@./node_modules/.bin/mocha \
+		--require should \
+		--reporter spec
+
+.PHONY: test

Readme.md

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+
+# exif
+
+  EXIF extraction with exiftool.
+
+### Example
+
+```js
+var exif = require('exif');
+
+exif(file, function(err, obj){
+  console.log(obj);
+})
+```
+
+```json
+{
+  "exiftool version number": "9.08",
+  "file name": "forest.jpeg",
+  "directory": "test/fixtures",
+  "file size": "497 kB",
+  "file modification date time": "2012:12:11 14:45:59-08:00",
+  "file access date time": "2012:12:13 16:18:36-08:00",
+  "file inode change date time": "2012:12:11 14:45:59-08:00",
+  "file permissions": "rw-------",
+  "file type": "JPEG",
+  "mime type": "image/jpeg",
+  "jfif version": "1.01",
+  "exif byte order": "Big-endian (Motorola, MM)",
+  "photometric interpretation": "Color Filter Array",
+  "make": "NIKON CORPORATION",
+  "camera model name": "NIKON D7000",
+  "orientation": "Horizontal (normal)",
+  "x resolution": "72",
+  "y resolution": "72",
+  "resolution unit": "inches",
+  "software": "Pixelmator 2.1.1",
+  "modify date": "2012:10:08 19:10:63.50",
+  "exposure time": "1/80",
+  "f number": "5.6",
+  "exposure program": "Aperture-priority AE",
+  "iso": "500",
+  "date time original": "2012:10:07 11:36:30.50",
+  "create date": "2012:10:07 11:36:30.50",
+  "exposure compensation": "-2",
+  "max aperture value": "4.0",
+  "metering mode": "Multi-segment",
+  "light source": "Unknown",
+  "flash": "Off, Did not fire",
+  "focal length": "10.0 mm (35 mm equivalent: 15.0 mm)",
+  "sub sec time": "50",
+  "sub sec time original": "50",
+  "sub sec time digitized": "50",
+  "color space": "sRGB",
+  "exif image width": "1971",
+  "exif image height": "1306",
+  "sensing method": "One-chip color area",
+  "custom rendered": "Normal",
+  "exposure mode": "Auto",
+  "white balance": "Auto",
+  "digital zoom ratio": "1",
+  "focal length in 35mm format": "15 mm",
+  "scene capture type": "Standard",
+  "gain control": "Low gain up",
+  "contrast": "Normal",
+  "saturation": "Normal",
+  "sharpness": "Normal",
+  "subject distance range": "Unknown",
+  "profile cmm type": "Lino",
+  "profile version": "2.1.0",
+  "profile class": "Display Device Profile",
+  "color space data": "RGB",
+  "profile connection space": "XYZ",
+  "profile date time": "1998:02:09 06:49:00",
+  "profile file signature": "acsp",
+  "primary platform": "Microsoft Corporation",
+  "cmm flags": "Not Embedded, Independent",
+  "device manufacturer": "IEC",
+  "device model": "sRGB",
+  "device attributes": "Reflective, Glossy, Positive, Color",
+  "rendering intent": "Perceptual",
+  "connection space illuminant": "0.9642 1 0.82491",
+  "profile creator": "HP",
+  "profile id": "0",
+  "profile copyright": "Copyright (c) 1998 Hewlett-Packard Company",
+  "profile description": "sRGB IEC61966-2.1",
+  "media white point": "0.95045 1 1.08905",
+  "media black point": "0 0 0",
+  "red matrix column": "0.43607 0.22249 0.01392",
+  "green matrix column": "0.38515 0.71687 0.09708",
+  "blue matrix column": "0.14307 0.06061 0.7141",
+  "device mfg desc": "IEC http://www.iec.ch",
+  "device model desc": "IEC 61966-2.1 Default RGB colour space - sRGB",
+  "viewing cond desc": "Reference Viewing Condition in IEC61966-2.1",
+  "viewing cond illuminant": "19.6445 20.3718 16.8089",
+  "viewing cond surround": "3.92889 4.07439 3.36179",
+  "viewing cond illuminant type": "D50",
+  "luminance": "76.03647 80 87.12462",
+  "measurement observer": "CIE 1931",
+  "measurement backing": "0 0 0",
+  "measurement geometry": "Unknown (0)",
+  "measurement flare": "0.999%",
+  "measurement illuminant": "D65",
+  "technology": "Cathode Ray Tube Display",
+  "red tone reproduction curve": "(Binary data 2060 bytes, use -b option to extract)",
+  "green tone reproduction curve": "(Binary data 2060 bytes, use -b option to extract)",
+  "blue tone reproduction curve": "(Binary data 2060 bytes, use -b option to extract)",
+  "xmp toolkit": "XMP Core 4.4.0",
+  "serial number": "5044750",
+  "lens": "Sigma 10-20mm F4-5.6 EX DC HSM",
+  "image number": "6069",
+  "flash compensation": "0",
+  "image width": "900",
+  "image height": "596",
+  "encoding process": "Baseline DCT, Huffman coding",
+  "bits per sample": "8",
+  "color components": "3",
+  "y cb cr sub sampling": "YCbCr4:4:4 (1 1)",
+  "aperture": "5.6",
+  "image size": "900x596",
+  "scale factor to 35 mm equivalent": "1.5",
+  "shutter speed": "1/80",
+  "circle of confusion": "0.020 mm",
+  "field of view": "100.4 deg",
+  "hyperfocal distance": "0.89 m",
+  "lens id": "Unknown (809257734)",
+  "light value": "9.0"
+}
+```
+
+## License 
+
+  MIT

index.js

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+
+/**
+ * Module dependencies.
+ */
+
+var exec = require('child_process').exec
+  , command = require('shelly');
+
+/**
+ * Fetch EXIF data from `file` and invoke `fn(err, data)`.
+ *
+ * @param {String} file
+ * @param {Function} fn
+ * @api public
+ */
+
+module.exports = function(file, fn){
+  var cmd = command('exiftool ?', file);
+  exec(cmd, function(err, str){
+    if (err) return fn(err);
+
+    var obj = str.split('\n').reduce(function(obj, line){
+      var i = line.indexOf(':');
+      var key = slug(line.slice(0, i));
+      var val = line.slice(i + 1, line.length).trim();
+      if ('' == key || '' == val) return obj;
+      obj[key] = val;
+      return obj;
+    }, {});
+
+    fn(null, obj);
+  });
+};
+
+/**
+ * Slug `str`.
+ */
+
+function slug(str) {
+  return str
+    .trim()
+    .replace(/[^\w]+/g, ' ')
+    .toLowerCase();
+}

package.json

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+{
+  "name": "exif",
+  "version": "0.0.1",
+  "description": "EXIF extraction with exiftool",
+  "keywords": [],
+  "author": "TJ Holowaychuk <[email protected]>",
+  "dependencies": {
+    "shelly": "0.0.3"
+  },
+  "devDependencies": {
+    "mocha": "*",
+    "better-assert": "*"
+  },
+  "main": "index"
+}

test/index.js

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+
+var exif = require('..');
+var assert = require('better-assert');
+
+describe('exif(file, fn)', function(){
+  it('respond with EXIF json data', function(done){
+    exif('test/fixtures/forest.jpeg', function(err, o){
+      if (err) return done(err);
+      assert('forest.jpeg' == o['file name']);
+      done();
+    });
+  })
+})