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Exif dictionaries changed to ordered dict, #46

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This commit is contained in:
John Evans 2013-06-15 12:36:27 -04:00
commit decd07cbc3
3 changed files with 37 additions and 33 deletions
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5
CHANGES.txt
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@ -1,4 +1,7 @@
Jun 11, 2013 - v0.1.8 Added reduce=-1 option to get lowest resolution
Jun 15, 2013 - v0.1.9 Reading ICC profile headers. Exif dictionaries changed
to ordered dicts.
Jun 14, 2013 - v0.1.8 Added reduce=-1 option to get lowest resolution
thumbnail.
Jun 07, 2013 - v0.1.7 Changed Exif dictionary names from ['Exif', 'Photo',

11
glymur/jp2box.py
View file

@ -11,6 +11,7 @@ References
Extensions
"""
import collections
import copy
import datetime
import math
@ -1713,8 +1714,8 @@ class UUIDBox(Jp2kBox):
more verbose description of the box.
uuid : uuid.UUID
16-byte UUID
data : bytes or dictionary or ElementTree.Element
Vendor-specific UUID data. Exif UUIDs are interpreted as dictionaries.
data : bytes or dict or ElementTree.Element
Vendor-specific data. Exif UUIDs are interpreted as dictionaries.
XMP UUIDs are interpreted as standard XML.
"""
def __init__(self, **kwargs):
@ -1782,7 +1783,7 @@ class UUIDBox(Jp2kBox):
kwargs['data'] = ET.fromstring(text)
elif kwargs['uuid'].bytes == b'JpgTiffExif->JP2':
e = Exif(buffer)
d = {}
d = collections.OrderedDict()
d['Image'] = e.exif_image
d['Photo'] = e.exif_photo
d['GPSInfo'] = e.exif_gpsinfo
@ -1877,7 +1878,7 @@ class _Ifd:
def __init__(self, endian, buffer, offset):
self.endian = endian
self.buffer = buffer
self.processed_ifd = {}
self.processed_ifd = collections.OrderedDict()
self.num_tags, = struct.unpack(endian + 'H',
buffer[offset:offset + 2])
@ -1885,7 +1886,7 @@ class _Ifd:
fmt = self.endian + 'HHII' * self.num_tags
ifd_buffer = buffer[offset + 2:offset + 2 + self.num_tags * 12]
data = struct.unpack(fmt, ifd_buffer)
self.raw_ifd = {}
self.raw_ifd = collections.OrderedDict()
for j, tag in enumerate(data[0::4]):
# The offset to the tag offset/payload is the offset to the IFD
# plus 2 bytes for the number of tags plus 12 bytes for each

54
glymur/test/test_printing.py
View file

@ -837,13 +837,33 @@ class TestPrinting(unittest.TestCase):
lines = ["UUID Box (uuid) @ (77, 638)",
" UUID: 4a706754-6966-6645-7869-662d3e4a5032 (Exif)",
" UUID Data: ",
"{'GPSInfo': {'GPSAltitude': 0.0,",
" 'GPSAltitudeRef': 0,",
" 'GPSDateStamp': '2013:02:09',",
" 'GPSLatitude': [42.0, 20.0, 33.61],",
"{'Image': {'Make': 'HTC',",
" 'Model': 'HTC Glacier',",
" 'XResolution': 72.0,",
" 'YResolution': 72.0,",
" 'ResolutionUnit': 2,",
" 'YCbCrPositioning': 1,",
" 'ExifTag': 138,",
" 'GPSTag': 354},",
" 'Photo': {'ISOSpeedRatings': 76,",
" 'ExifVersion': (48, 50, 50, 48),",
" 'DateTimeOriginal': '2013:02:09 14:47:53',",
" 'DateTimeDigitized': '2013:02:09 14:47:53',",
" 'ComponentsConfiguration': (1, 2, 3, 0),",
" 'FocalLength': 3.53,",
" 'FlashpixVersion': (48, 49, 48, 48),",
" 'ColorSpace': 1,",
" 'PixelXDimension': 2528,",
" 'PixelYDimension': 1424,",
" 'InteroperabilityTag': 324},",
" 'GPSInfo': {'GPSVersionID': (2, 2, 0),",
" 'GPSLatitudeRef': 'N',",
" 'GPSLongitude': [71.0, 5.0, 17.32],",
" 'GPSLatitude': [42.0, 20.0, 33.61],",
" 'GPSLongitudeRef': 'W',",
" 'GPSLongitude': [71.0, 5.0, 17.32],",
" 'GPSAltitudeRef': 0,",
" 'GPSAltitude': 0.0,",
" 'GPSTimeStamp': [19.0, 47.0, 53.0],",
" 'GPSMapDatum': 'WGS-84',",
" 'GPSProcessingMethod': (65,",
" 83,",
@ -860,28 +880,8 @@ class TestPrinting(unittest.TestCase):
" 79,",
" 82,",
" 75),",
" 'GPSTimeStamp': [19.0, 47.0, 53.0],",
" 'GPSVersionID': (2, 2, 0)},",
" 'Image': {'ExifTag': 138,",
" 'GPSTag': 354,",
" 'Make': 'HTC',",
" 'Model': 'HTC Glacier',",
" 'ResolutionUnit': 2,",
" 'XResolution': 72.0,",
" 'YCbCrPositioning': 1,",
" 'YResolution': 72.0},",
" 'Iop': None,",
" 'Photo': {'ColorSpace': 1,",
" 'ComponentsConfiguration': (1, 2, 3, 0),",
" 'DateTimeDigitized': '2013:02:09 14:47:53',",
" 'DateTimeOriginal': '2013:02:09 14:47:53',",
" 'ExifVersion': (48, 50, 50, 48),",
" 'FlashpixVersion': (48, 49, 48, 48),",
" 'FocalLength': 3.53,",
" 'ISOSpeedRatings': 76,",
" 'InteroperabilityTag': 324,",
" 'PixelXDimension': 2528,",
" 'PixelYDimension': 1424}}"]
" 'GPSDateStamp': '2013:02:09'},",
" 'Iop': None}"]
expected = '\n'.join(lines)