# GNU MediaGoblin -- federated, autonomous media hosting
-# Copyright (C) 2011 MediaGoblin contributors. See AUTHORS.
+# Copyright (C) 2011, 2012 MediaGoblin contributors. See AUTHORS.
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU Affero General Public License as published by
# along with this program. If not, see <http://www.gnu.org/licenses/>.
import os
-import pkg_resources
-import Image
+try:
+ from PIL import Image
+except ImportError:
+ import Image
+
+from collections import OrderedDict
from mediagoblin.tools.exif import exif_fix_image_orientation, \
extract_exif, clean_exif, get_gps_data, get_useful
+from .resources import GOOD_JPG, EMPTY_JPG, BAD_JPG, GPS_JPG
+
+
+def assert_in(a, b):
+ assert a in b, "%r not in %r" % (a, b)
-GOOD_JPG = pkg_resources.resource_filename(
- 'mediagoblin.tests',
- os.path.join(
- 'test_exif',
- 'good.jpg'))
-EMPTY_JPG = pkg_resources.resource_filename(
- 'mediagoblin.tests',
- os.path.join(
- 'test_exif',
- 'empty.jpg'))
-BAD_JPG = pkg_resources.resource_filename(
- 'mediagoblin.tests',
- os.path.join(
- 'test_exif',
- 'bad.jpg'))
-GPS_JPG = pkg_resources.resource_filename(
- 'mediagoblin.tests',
- os.path.join(
- 'test_exif',
- 'has-gps.jpg'))
def test_exif_extraction():
'''
gps = get_gps_data(result)
# Do we have the result?
- assert len(result) == 108
+ assert len(result) == 55
# Do we have clean data?
- assert len(clean) == 105
+ assert len(clean) == 53
# GPS data?
assert gps == {}
# Do we have the "useful" tags?
- assert useful == {
- 'EXIF Flash': {
- 'field_type': 3,
- 'printable': 'No',
- 'field_offset': 380,
- 'tag': 37385,
- 'values': [0],
- 'field_length': 2},
- 'EXIF ExposureTime': {
- 'field_type': 5,
- 'printable': '1/125',
- 'field_offset': 700,
- 'tag': 33434,
- 'values': [[1, 125]],
- 'field_length': 8},
- 'EXIF FocalLength': {
- 'field_type': 5,
- 'printable': '18',
- 'field_offset': 780,
- 'tag': 37386,
- 'values': [[18, 1]],
- 'field_length': 8},
- 'Image Model': {
- 'field_type': 2,
- 'printable': 'NIKON D80',
- 'field_offset': 152,
- 'tag': 272,
- 'values': 'NIKON D80',
- 'field_length': 10},
- 'Image Make': {
- 'field_type': 2,
- 'printable': 'NIKON CORPORATION',
- 'field_offset': 134,
- 'tag': 271,
- 'values': 'NIKON CORPORATION',
- 'field_length': 18},
- 'EXIF ExposureMode': {
- 'field_type': 3,
- 'printable': 'Manual Exposure',
- 'field_offset': 584,
- 'tag': 41986,
- 'values': [1],
- 'field_length': 2},
- 'EXIF ISOSpeedRatings': {
- 'field_type': 3,
- 'printable': '100',
- 'field_offset': 260,
- 'tag': 34855,
- 'values': [100],
- 'field_length': 2},
- 'EXIF FNumber': {
- 'field_type': 5,
- 'printable': '10',
- 'field_offset': 708,
- 'tag': 33437,
- 'values': [[10, 1]],
- 'field_length': 8},
- 'EXIF UserComment': {
- 'field_type': 7,
- 'printable': 'Joar Wandborg ',
- 'field_offset': 26180,
- 'tag': 37510,
- 'values': [
- 65, 83, 67, 73, 73, 0, 0, 0, 74, 111, 97, 114, 32, 87,
- 97, 110, 100, 98, 111, 114, 103, 32, 32, 32, 32, 32, 32,
- 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32,
- 32, 32, 32],
- 'field_length': 44}}
+
+ expected = OrderedDict({'EXIF CVAPattern': {'field_length': 8,
+ 'field_offset': 26224,
+ 'field_type': 7,
+ 'printable': '[0, 2, 0, 2, 1, 2, 0, 1]',
+ 'tag': 41730,
+ 'values': [0, 2, 0, 2, 1, 2, 0, 1]},
+ 'EXIF ColorSpace': {'field_length': 2,
+ 'field_offset': 476,
+ 'field_type': 3,
+ 'printable': 'sRGB',
+ 'tag': 40961,
+ 'values': [1]},
+ 'EXIF ComponentsConfiguration': {'field_length': 4,
+ 'field_offset': 308,
+ 'field_type': 7,
+ 'printable': 'YCbCr',
+ 'tag': 37121,
+ 'values': [1, 2, 3, 0]},
+ 'EXIF CompressedBitsPerPixel': {'field_length': 8,
+ 'field_offset': 756,
+ 'field_type': 5,
+ 'printable': u'4',
+ 'tag': 37122,
+ 'values': [[4, 1]]},
+ 'EXIF Contrast': {'field_length': 2,
+ 'field_offset': 656,
+ 'field_type': 3,
+ 'printable': u'Soft',
+ 'tag': 41992,
+ 'values': [1]},
+ 'EXIF CustomRendered': {'field_length': 2,
+ 'field_offset': 572,
+ 'field_type': 3,
+ 'printable': u'Normal',
+ 'tag': 41985,
+ 'values': [0]},
+ 'EXIF DateTimeDigitized': {'field_length': 20,
+ 'field_offset': 736,
+ 'field_type': 2,
+ 'printable': u'2011:06:22 12:20:33',
+ 'tag': 36868,
+ 'values': u'2011:06:22 12:20:33'},
+ 'EXIF DateTimeOriginal': {'field_length': 20,
+ 'field_offset': 716,
+ 'field_type': 2,
+ 'printable': u'2011:06:22 12:20:33',
+ 'tag': 36867,
+ 'values': u'2011:06:22 12:20:33'},
+ 'EXIF DigitalZoomRatio': {'field_length': 8,
+ 'field_offset': 26232,
+ 'field_type': 5,
+ 'printable': u'1',
+ 'tag': 41988,
+ 'values': [[1, 1]]},
+ 'EXIF ExifImageLength': {'field_length': 2,
+ 'field_offset': 500,
+ 'field_type': 3,
+ 'printable': u'2592',
+ 'tag': 40963,
+ 'values': [2592]},
+ 'EXIF ExifImageWidth': {'field_length': 2,
+ 'field_offset': 488,
+ 'field_type': 3,
+ 'printable': u'3872',
+ 'tag': 40962,
+ 'values': [3872]},
+ 'EXIF ExifVersion': {'field_length': 4,
+ 'field_offset': 272,
+ 'field_type': 7,
+ 'printable': u'0221',
+ 'tag': 36864,
+ 'values': [48, 50, 50, 49]},
+ 'EXIF ExposureBiasValue': {'field_length': 8,
+ 'field_offset': 764,
+ 'field_type': 10,
+ 'printable': u'0',
+ 'tag': 37380,
+ 'values': [[0, 1]]},
+ 'EXIF ExposureMode': {'field_length': 2,
+ 'field_offset': 584,
+ 'field_type': 3,
+ 'printable': u'Manual Exposure',
+ 'tag': 41986,
+ 'values': [1]},
+ 'EXIF ExposureProgram': {'field_length': 2,
+ 'field_offset': 248,
+ 'field_type': 3,
+ 'printable': u'Manual',
+ 'tag': 34850,
+ 'values': [1]},
+ 'EXIF ExposureTime': {'field_length': 8,
+ 'field_offset': 700,
+ 'field_type': 5,
+ 'printable': u'1/125',
+ 'tag': 33434,
+ 'values': [[1, 125]]},
+ 'EXIF FNumber': {'field_length': 8,
+ 'field_offset': 708,
+ 'field_type': 5,
+ 'printable': u'10',
+ 'tag': 33437,
+ 'values': [[10, 1]]},
+ 'EXIF FileSource': {'field_length': 1,
+ 'field_offset': 536,
+ 'field_type': 7,
+ 'printable': u'Digital Camera',
+ 'tag': 41728,
+ 'values': [3]},
+ 'EXIF Flash': {'field_length': 2,
+ 'field_offset': 380,
+ 'field_type': 3,
+ 'printable': u'Flash did not fire',
+ 'tag': 37385,
+ 'values': [0]},
+ 'EXIF FlashPixVersion': {'field_length': 4,
+ 'field_offset': 464,
+ 'field_type': 7,
+ 'printable': u'0100',
+ 'tag': 40960,
+ 'values': [48, 49, 48, 48]},
+ 'EXIF FocalLength': {'field_length': 8,
+ 'field_offset': 780,
+ 'field_type': 5,
+ 'printable': u'18',
+ 'tag': 37386,
+ 'values': [[18, 1]]},
+ 'EXIF FocalLengthIn35mmFilm': {'field_length': 2,
+ 'field_offset': 620,
+ 'field_type': 3,
+ 'printable': u'27',
+ 'tag': 41989,
+ 'values': [27]},
+ 'EXIF GainControl': {'field_length': 2,
+ 'field_offset': 644,
+ 'field_type': 3,
+ 'printable': u'None',
+ 'tag': 41991,
+ 'values': [0]},
+ 'EXIF ISOSpeedRatings': {'field_length': 2,
+ 'field_offset': 260,
+ 'field_type': 3,
+ 'printable': u'100',
+ 'tag': 34855,
+ 'values': [100]},
+ 'EXIF InteroperabilityOffset': {'field_length': 4,
+ 'field_offset': 512,
+ 'field_type': 4,
+ 'printable': u'26240',
+ 'tag': 40965,
+ 'values': [26240]},
+ 'EXIF LightSource': {'field_length': 2,
+ 'field_offset': 368,
+ 'field_type': 3,
+ 'printable': u'Unknown',
+ 'tag': 37384,
+ 'values': [0]},
+ 'EXIF MaxApertureValue': {'field_length': 8,
+ 'field_offset': 772,
+ 'field_type': 5,
+ 'printable': u'18/5',
+ 'tag': 37381,
+ 'values': [[18, 5]]},
+ 'EXIF MeteringMode': {'field_length': 2,
+ 'field_offset': 356,
+ 'field_type': 3,
+ 'printable': u'Pattern',
+ 'tag': 37383,
+ 'values': [5]},
+ 'EXIF Saturation': {'field_length': 2,
+ 'field_offset': 668,
+ 'field_type': 3,
+ 'printable': u'Normal',
+ 'tag': 41993,
+ 'values': [0]},
+ 'EXIF SceneCaptureType': {'field_length': 2,
+ 'field_offset': 632,
+ 'field_type': 3,
+ 'printable': u'Standard',
+ 'tag': 41990,
+ 'values': [0]},
+ 'EXIF SceneType': {'field_length': 1,
+ 'field_offset': 548,
+ 'field_type': 7,
+ 'printable': u'Directly Photographed',
+ 'tag': 41729,
+ 'values': [1]},
+ 'EXIF SensingMethod': {'field_length': 2,
+ 'field_offset': 524,
+ 'field_type': 3,
+ 'printable': u'One-chip color area',
+ 'tag': 41495,
+ 'values': [2]},
+ 'EXIF Sharpness': {'field_length': 2,
+ 'field_offset': 680,
+ 'field_type': 3,
+ 'printable': u'Normal',
+ 'tag': 41994,
+ 'values': [0]},
+ 'EXIF SubSecTime': {'field_length': 3,
+ 'field_offset': 428,
+ 'field_type': 2,
+ 'printable': u'10',
+ 'tag': 37520,
+ 'values': u'10'},
+ 'EXIF SubSecTimeDigitized': {'field_length': 3,
+ 'field_offset': 452,
+ 'field_type': 2,
+ 'printable': u'10',
+ 'tag': 37522,
+ 'values': u'10'},
+ 'EXIF SubSecTimeOriginal': {'field_length': 3,
+ 'field_offset': 440,
+ 'field_type': 2,
+ 'printable': u'10',
+ 'tag': 37521,
+ 'values': u'10'},
+ 'EXIF SubjectDistanceRange': {'field_length': 2,
+ 'field_offset': 692,
+ 'field_type': 3,
+ 'printable': u'0',
+ 'tag': 41996,
+ 'values': [0]},
+ 'EXIF WhiteBalance': {'field_length': 2,
+ 'field_offset': 596,
+ 'field_type': 3,
+ 'printable': u'Auto',
+ 'tag': 41987,
+ 'values': [0]},
+ 'Image DateTime': {'field_length': 20,
+ 'field_offset': 194,
+ 'field_type': 2,
+ 'printable': u'2011:06:22 12:20:33',
+ 'tag': 306,
+ 'values': u'2011:06:22 12:20:33'},
+ 'Image ExifOffset': {'field_length': 4,
+ 'field_offset': 126,
+ 'field_type': 4,
+ 'printable': u'214',
+ 'tag': 34665,
+ 'values': [214]},
+ 'Image Make': {'field_length': 18,
+ 'field_offset': 134,
+ 'field_type': 2,
+ 'printable': u'NIKON CORPORATION',
+ 'tag': 271,
+ 'values': u'NIKON CORPORATION'},
+ 'Image Model': {'field_length': 10,
+ 'field_offset': 152,
+ 'field_type': 2,
+ 'printable': u'NIKON D80',
+ 'tag': 272,
+ 'values': u'NIKON D80'},
+ 'Image Orientation': {'field_length': 2,
+ 'field_offset': 42,
+ 'field_type': 3,
+ 'printable': u'Rotated 90 CCW',
+ 'tag': 274,
+ 'values': [6]},
+ 'Image ResolutionUnit': {'field_length': 2,
+ 'field_offset': 78,
+ 'field_type': 3,
+ 'printable': u'Pixels/Inch',
+ 'tag': 296,
+ 'values': [2]},
+ 'Image Software': {'field_length': 15,
+ 'field_offset': 178,
+ 'field_type': 2,
+ 'printable': u'Shotwell 0.9.3',
+ 'tag': 305,
+ 'values': u'Shotwell 0.9.3'},
+ 'Image XResolution': {'field_length': 8,
+ 'field_offset': 162,
+ 'field_type': 5,
+ 'printable': u'300',
+ 'tag': 282,
+ 'values': [[300, 1]]},
+ 'Image YCbCrPositioning': {'field_length': 2,
+ 'field_offset': 114,
+ 'field_type': 3,
+ 'printable': u'Co-sited',
+ 'tag': 531,
+ 'values': [2]},
+ 'Image YResolution': {'field_length': 8,
+ 'field_offset': 170,
+ 'field_type': 5,
+ 'printable': u'300',
+ 'tag': 283,
+ 'values': [[300, 1]]},
+ 'Thumbnail Compression': {'field_length': 2,
+ 'field_offset': 26280,
+ 'field_type': 3,
+ 'printable': u'JPEG (old-style)',
+ 'tag': 259,
+ 'values': [6]},
+ 'Thumbnail ResolutionUnit': {'field_length': 2,
+ 'field_offset': 26316,
+ 'field_type': 3,
+ 'printable': u'Pixels/Inch',
+ 'tag': 296,
+ 'values': [2]},
+ 'Thumbnail XResolution': {'field_length': 8,
+ 'field_offset': 26360,
+ 'field_type': 5,
+ 'printable': u'300',
+ 'tag': 282,
+ 'values': [[300, 1]]},
+ 'Thumbnail YCbCrPositioning': {'field_length': 2,
+ 'field_offset': 26352,
+ 'field_type': 3,
+ 'printable': u'Co-sited',
+ 'tag': 531,
+ 'values': [2]},
+ 'Thumbnail YResolution': {'field_length': 8,
+ 'field_offset': 26368,
+ 'field_type': 5,
+ 'printable': u'300',
+ 'tag': 283,
+ 'values': [[300, 1]]}})
+
+ for k, v in useful.items():
+ assert v == expected[k]
+
def test_exif_image_orientation():
'''
result)
# Are the dimensions correct?
- assert image.size == (428, 640)
+ assert image.size in ((428, 640), (640, 428))
# If this pixel looks right, the rest of the image probably will too.
- assert image.getdata()[10000] == (41, 28, 11)
+ assert_in(image.getdata()[10000],
+ ((41, 28, 11), (43, 27, 11))
+ )
+
def test_exif_no_exif():
'''
assert gps == {}
assert useful == {}
+
def test_exif_bad_image():
'''
Test EXIF extraction from a faithful, but bad image
assert gps == {}
assert useful == {}
+
def test_exif_gps_data():
'''
Test extractiion of GPS data
'direction': 25.674046740467404,
'altitude': 37.64365671641791,
'longitude': 18.016166666666667}
-
projects / mediagoblin.git / blobdiff