author | Tero Marttila <terom@fixme.fi> |
Wed, 17 Jun 2009 16:45:01 +0300 | |
changeset 130 | 94888270dae0 |
parent 98 | d7d98c4479ab |
permissions | -rwxr-xr-x |
54 | 1 |
#!/usr/bin/env python |
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# -*- coding: utf-8 -*- |
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# |
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# Library to extract EXIF information from digital camera image files |
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# http://sourceforge.net/projects/exif-py/ |
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# |
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# VERSION 1.1.0 |
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# |
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# To use this library call with: |
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# f = open(path_name, 'rb') |
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# tags = EXIF.process_file(f) |
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# |
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# To ignore MakerNote tags, pass the -q or --quick |
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# command line arguments, or as |
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# tags = EXIF.process_file(f, details=False) |
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# |
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# To stop processing after a certain tag is retrieved, |
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# pass the -t TAG or --stop-tag TAG argument, or as |
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# tags = EXIF.process_file(f, stop_tag='TAG') |
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# |
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# where TAG is a valid tag name, ex 'DateTimeOriginal' |
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# |
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# These 2 are useful when you are retrieving a large list of images |
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# |
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# |
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# To return an error on invalid tags, |
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# pass the -s or --strict argument, or as |
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# tags = EXIF.process_file(f, strict=True) |
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# |
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# Otherwise these tags will be ignored |
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# |
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# Returned tags will be a dictionary mapping names of EXIF tags to their |
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# values in the file named by path_name. You can process the tags |
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# as you wish. In particular, you can iterate through all the tags with: |
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# for tag in tags.keys(): |
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# if tag not in ('JPEGThumbnail', 'TIFFThumbnail', 'Filename', |
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# 'EXIF MakerNote'): |
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# print "Key: %s, value %s" % (tag, tags[tag]) |
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# (This code uses the if statement to avoid printing out a few of the |
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# tags that tend to be long or boring.) |
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# |
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# The tags dictionary will include keys for all of the usual EXIF |
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# tags, and will also include keys for Makernotes used by some |
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# cameras, for which we have a good specification. |
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# |
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# Note that the dictionary keys are the IFD name followed by the |
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# tag name. For example: |
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# 'EXIF DateTimeOriginal', 'Image Orientation', 'MakerNote FocusMode' |
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# |
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# Copyright (c) 2002-2007 Gene Cash All rights reserved |
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# Copyright (c) 2007-2008 Ianaré Sévi All rights reserved |
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# |
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# Redistribution and use in source and binary forms, with or without |
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# modification, are permitted provided that the following conditions |
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# are met: |
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# |
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# 1. Redistributions of source code must retain the above copyright |
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# notice, this list of conditions and the following disclaimer. |
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# |
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# 2. Redistributions in binary form must reproduce the above |
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# copyright notice, this list of conditions and the following |
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# disclaimer in the documentation and/or other materials provided |
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# with the distribution. |
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# |
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# 3. Neither the name of the authors nor the names of its contributors |
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# may be used to endorse or promote products derived from this |
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# software without specific prior written permission. |
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# |
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# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
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# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
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# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
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# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
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# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
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# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
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# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
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# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
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# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
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# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
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# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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# |
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# |
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# ----- See 'changes.txt' file for all contributors and changes ----- # |
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# |
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98
d7d98c4479ab
modify EXIF.py to use mmap in the hope of slightly better improvements with less syscalls
Tero Marttila <terom@fixme.fi>
parents:
54
diff
changeset
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import mmap |
54 | 85 |
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# Don't throw an exception when given an out of range character. |
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def make_string(seq): |
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str = '' |
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for c in seq: |
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# Screen out non-printing characters |
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if 32 <= c and c < 256: |
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str += chr(c) |
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# If no printing chars |
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if not str: |
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return seq |
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return str |
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# Special version to deal with the code in the first 8 bytes of a user comment. |
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# First 8 bytes gives coding system e.g. ASCII vs. JIS vs Unicode |
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def make_string_uc(seq): |
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code = seq[0:8] |
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seq = seq[8:] |
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# Of course, this is only correct if ASCII, and the standard explicitly |
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# allows JIS and Unicode. |
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return make_string(seq) |
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# field type descriptions as (length, abbreviation, full name) tuples |
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FIELD_TYPES = ( |
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(0, 'X', 'Proprietary'), # no such type |
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(1, 'B', 'Byte'), |
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(1, 'A', 'ASCII'), |
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(2, 'S', 'Short'), |
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(4, 'L', 'Long'), |
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(8, 'R', 'Ratio'), |
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(1, 'SB', 'Signed Byte'), |
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(1, 'U', 'Undefined'), |
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(2, 'SS', 'Signed Short'), |
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(4, 'SL', 'Signed Long'), |
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(8, 'SR', 'Signed Ratio'), |
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) |
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# dictionary of main EXIF tag names |
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# first element of tuple is tag name, optional second element is |
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# another dictionary giving names to values |
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EXIF_TAGS = { |
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0x0100: ('ImageWidth', ), |
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0x0101: ('ImageLength', ), |
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0x0102: ('BitsPerSample', ), |
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0x0103: ('Compression', |
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{1: 'Uncompressed', |
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2: 'CCITT 1D', |
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3: 'T4/Group 3 Fax', |
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4: 'T6/Group 4 Fax', |
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5: 'LZW', |
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6: 'JPEG (old-style)', |
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7: 'JPEG', |
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8: 'Adobe Deflate', |
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9: 'JBIG B&W', |
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10: 'JBIG Color', |
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32766: 'Next', |
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32769: 'Epson ERF Compressed', |
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32771: 'CCIRLEW', |
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32773: 'PackBits', |
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32809: 'Thunderscan', |
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32895: 'IT8CTPAD', |
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32896: 'IT8LW', |
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32897: 'IT8MP', |
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32898: 'IT8BL', |
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32908: 'PixarFilm', |
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32909: 'PixarLog', |
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32946: 'Deflate', |
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32947: 'DCS', |
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34661: 'JBIG', |
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34676: 'SGILog', |
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34677: 'SGILog24', |
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34712: 'JPEG 2000', |
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34713: 'Nikon NEF Compressed', |
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65000: 'Kodak DCR Compressed', |
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65535: 'Pentax PEF Compressed'}), |
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0x0106: ('PhotometricInterpretation', ), |
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0x0107: ('Thresholding', ), |
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0x010A: ('FillOrder', ), |
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0x010D: ('DocumentName', ), |
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0x010E: ('ImageDescription', ), |
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0x010F: ('Make', ), |
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0x0110: ('Model', ), |
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0x0111: ('StripOffsets', ), |
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0x0112: ('Orientation', |
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{1: 'Horizontal (normal)', |
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2: 'Mirrored horizontal', |
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3: 'Rotated 180', |
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4: 'Mirrored vertical', |
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5: 'Mirrored horizontal then rotated 90 CCW', |
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6: 'Rotated 90 CW', |
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7: 'Mirrored horizontal then rotated 90 CW', |
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8: 'Rotated 90 CCW'}), |
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0x0115: ('SamplesPerPixel', ), |
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0x0116: ('RowsPerStrip', ), |
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0x0117: ('StripByteCounts', ), |
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0x011A: ('XResolution', ), |
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0x011B: ('YResolution', ), |
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0x011C: ('PlanarConfiguration', ), |
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0x011D: ('PageName', make_string), |
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0x0128: ('ResolutionUnit', |
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{1: 'Not Absolute', |
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2: 'Pixels/Inch', |
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3: 'Pixels/Centimeter'}), |
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0x012D: ('TransferFunction', ), |
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0x0131: ('Software', ), |
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0x0132: ('DateTime', ), |
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0x013B: ('Artist', ), |
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0x013E: ('WhitePoint', ), |
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0x013F: ('PrimaryChromaticities', ), |
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0x0156: ('TransferRange', ), |
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0x0200: ('JPEGProc', ), |
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0x0201: ('JPEGInterchangeFormat', ), |
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0x0202: ('JPEGInterchangeFormatLength', ), |
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0x0211: ('YCbCrCoefficients', ), |
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0x0212: ('YCbCrSubSampling', ), |
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0x0213: ('YCbCrPositioning', |
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{1: 'Centered', |
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2: 'Co-sited'}), |
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0x0214: ('ReferenceBlackWhite', ), |
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||
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0x4746: ('Rating', ), |
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||
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0x828D: ('CFARepeatPatternDim', ), |
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0x828E: ('CFAPattern', ), |
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0x828F: ('BatteryLevel', ), |
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0x8298: ('Copyright', ), |
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0x829A: ('ExposureTime', ), |
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0x829D: ('FNumber', ), |
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0x83BB: ('IPTC/NAA', ), |
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0x8769: ('ExifOffset', ), |
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0x8773: ('InterColorProfile', ), |
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0x8822: ('ExposureProgram', |
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{0: 'Unidentified', |
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1: 'Manual', |
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2: 'Program Normal', |
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3: 'Aperture Priority', |
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4: 'Shutter Priority', |
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5: 'Program Creative', |
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6: 'Program Action', |
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7: 'Portrait Mode', |
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8: 'Landscape Mode'}), |
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0x8824: ('SpectralSensitivity', ), |
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0x8825: ('GPSInfo', ), |
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0x8827: ('ISOSpeedRatings', ), |
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0x8828: ('OECF', ), |
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0x9000: ('ExifVersion', make_string), |
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0x9003: ('DateTimeOriginal', ), |
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0x9004: ('DateTimeDigitized', ), |
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0x9101: ('ComponentsConfiguration', |
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{0: '', |
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1: 'Y', |
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2: 'Cb', |
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3: 'Cr', |
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4: 'Red', |
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5: 'Green', |
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6: 'Blue'}), |
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0x9102: ('CompressedBitsPerPixel', ), |
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0x9201: ('ShutterSpeedValue', ), |
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0x9202: ('ApertureValue', ), |
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0x9203: ('BrightnessValue', ), |
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0x9204: ('ExposureBiasValue', ), |
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0x9205: ('MaxApertureValue', ), |
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0x9206: ('SubjectDistance', ), |
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0x9207: ('MeteringMode', |
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{0: 'Unidentified', |
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1: 'Average', |
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2: 'CenterWeightedAverage', |
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3: 'Spot', |
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4: 'MultiSpot', |
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5: 'Pattern'}), |
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0x9208: ('LightSource', |
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{0: 'Unknown', |
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1: 'Daylight', |
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2: 'Fluorescent', |
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3: 'Tungsten', |
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9: 'Fine Weather', |
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10: 'Flash', |
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11: 'Shade', |
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12: 'Daylight Fluorescent', |
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13: 'Day White Fluorescent', |
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14: 'Cool White Fluorescent', |
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15: 'White Fluorescent', |
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17: 'Standard Light A', |
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18: 'Standard Light B', |
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19: 'Standard Light C', |
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20: 'D55', |
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21: 'D65', |
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22: 'D75', |
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255: 'Other'}), |
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0x9209: ('Flash', |
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{0: 'No', |
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1: 'Fired', |
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5: 'Fired (?)', # no return sensed |
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7: 'Fired (!)', # return sensed |
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9: 'Fill Fired', |
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13: 'Fill Fired (?)', |
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15: 'Fill Fired (!)', |
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16: 'Off', |
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24: 'Auto Off', |
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25: 'Auto Fired', |
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29: 'Auto Fired (?)', |
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31: 'Auto Fired (!)', |
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32: 'Not Available'}), |
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0x920A: ('FocalLength', ), |
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0x9214: ('SubjectArea', ), |
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0x927C: ('MakerNote', ), |
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0x9286: ('UserComment', make_string_uc), |
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0x9290: ('SubSecTime', ), |
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0x9291: ('SubSecTimeOriginal', ), |
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0x9292: ('SubSecTimeDigitized', ), |
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||
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# used by Windows Explorer |
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0x9C9B: ('XPTitle', ), |
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0x9C9C: ('XPComment', ), |
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0x9C9D: ('XPAuthor', ), #(ignored by Windows Explorer if Artist exists) |
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0x9C9E: ('XPKeywords', ), |
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0x9C9F: ('XPSubject', ), |
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||
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0xA000: ('FlashPixVersion', make_string), |
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0xA001: ('ColorSpace', |
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{1: 'sRGB', |
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2: 'Adobe RGB', |
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65535: 'Uncalibrated'}), |
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0xA002: ('ExifImageWidth', ), |
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0xA003: ('ExifImageLength', ), |
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0xA005: ('InteroperabilityOffset', ), |
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0xA20B: ('FlashEnergy', ), # 0x920B in TIFF/EP |
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0xA20C: ('SpatialFrequencyResponse', ), # 0x920C |
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0xA20E: ('FocalPlaneXResolution', ), # 0x920E |
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0xA20F: ('FocalPlaneYResolution', ), # 0x920F |
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0xA210: ('FocalPlaneResolutionUnit', ), # 0x9210 |
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0xA214: ('SubjectLocation', ), # 0x9214 |
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0xA215: ('ExposureIndex', ), # 0x9215 |
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0xA217: ('SensingMethod', # 0x9217 |
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{1: 'Not defined', |
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2: 'One-chip color area', |
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3: 'Two-chip color area', |
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4: 'Three-chip color area', |
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5: 'Color sequential area', |
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7: 'Trilinear', |
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8: 'Color sequential linear'}), |
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0xA300: ('FileSource', |
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{1: 'Film Scanner', |
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2: 'Reflection Print Scanner', |
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3: 'Digital Camera'}), |
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0xA301: ('SceneType', |
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{1: 'Directly Photographed'}), |
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0xA302: ('CVAPattern', ), |
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0xA401: ('CustomRendered', |
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{0: 'Normal', |
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1: 'Custom'}), |
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0xA402: ('ExposureMode', |
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{0: 'Auto Exposure', |
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1: 'Manual Exposure', |
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2: 'Auto Bracket'}), |
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0xA403: ('WhiteBalance', |
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{0: 'Auto', |
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1: 'Manual'}), |
|
343 |
0xA404: ('DigitalZoomRatio', ), |
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0xA405: ('FocalLengthIn35mmFilm', ), |
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345 |
0xA406: ('SceneCaptureType', |
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{0: 'Standard', |
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347 |
1: 'Landscape', |
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348 |
2: 'Portrait', |
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3: 'Night)'}), |
|
350 |
0xA407: ('GainControl', |
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{0: 'None', |
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352 |
1: 'Low gain up', |
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2: 'High gain up', |
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354 |
3: 'Low gain down', |
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4: 'High gain down'}), |
|
356 |
0xA408: ('Contrast', |
|
357 |
{0: 'Normal', |
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358 |
1: 'Soft', |
|
359 |
2: 'Hard'}), |
|
360 |
0xA409: ('Saturation', |
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361 |
{0: 'Normal', |
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362 |
1: 'Soft', |
|
363 |
2: 'Hard'}), |
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364 |
0xA40A: ('Sharpness', |
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365 |
{0: 'Normal', |
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366 |
1: 'Soft', |
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2: 'Hard'}), |
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368 |
0xA40B: ('DeviceSettingDescription', ), |
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369 |
0xA40C: ('SubjectDistanceRange', ), |
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0xA500: ('Gamma', ), |
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0xC4A5: ('PrintIM', ), |
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0xEA1C: ('Padding', ), |
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} |
|
374 |
||
375 |
# interoperability tags |
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INTR_TAGS = { |
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377 |
0x0001: ('InteroperabilityIndex', ), |
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378 |
0x0002: ('InteroperabilityVersion', ), |
|
379 |
0x1000: ('RelatedImageFileFormat', ), |
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380 |
0x1001: ('RelatedImageWidth', ), |
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381 |
0x1002: ('RelatedImageLength', ), |
|
382 |
} |
|
383 |
||
384 |
# GPS tags (not used yet, haven't seen camera with GPS) |
|
385 |
GPS_TAGS = { |
|
386 |
0x0000: ('GPSVersionID', ), |
|
387 |
0x0001: ('GPSLatitudeRef', ), |
|
388 |
0x0002: ('GPSLatitude', ), |
|
389 |
0x0003: ('GPSLongitudeRef', ), |
|
390 |
0x0004: ('GPSLongitude', ), |
|
391 |
0x0005: ('GPSAltitudeRef', ), |
|
392 |
0x0006: ('GPSAltitude', ), |
|
393 |
0x0007: ('GPSTimeStamp', ), |
|
394 |
0x0008: ('GPSSatellites', ), |
|
395 |
0x0009: ('GPSStatus', ), |
|
396 |
0x000A: ('GPSMeasureMode', ), |
|
397 |
0x000B: ('GPSDOP', ), |
|
398 |
0x000C: ('GPSSpeedRef', ), |
|
399 |
0x000D: ('GPSSpeed', ), |
|
400 |
0x000E: ('GPSTrackRef', ), |
|
401 |
0x000F: ('GPSTrack', ), |
|
402 |
0x0010: ('GPSImgDirectionRef', ), |
|
403 |
0x0011: ('GPSImgDirection', ), |
|
404 |
0x0012: ('GPSMapDatum', ), |
|
405 |
0x0013: ('GPSDestLatitudeRef', ), |
|
406 |
0x0014: ('GPSDestLatitude', ), |
|
407 |
0x0015: ('GPSDestLongitudeRef', ), |
|
408 |
0x0016: ('GPSDestLongitude', ), |
|
409 |
0x0017: ('GPSDestBearingRef', ), |
|
410 |
0x0018: ('GPSDestBearing', ), |
|
411 |
0x0019: ('GPSDestDistanceRef', ), |
|
412 |
0x001A: ('GPSDestDistance', ), |
|
413 |
0x001D: ('GPSDate', ), |
|
414 |
} |
|
415 |
||
416 |
# Ignore these tags when quick processing |
|
417 |
# 0x927C is MakerNote Tags |
|
418 |
# 0x9286 is user comment |
|
419 |
IGNORE_TAGS=(0x9286, 0x927C) |
|
420 |
||
421 |
# http://tomtia.plala.jp/DigitalCamera/MakerNote/index.asp |
|
422 |
def nikon_ev_bias(seq): |
|
423 |
# First digit seems to be in steps of 1/6 EV. |
|
424 |
# Does the third value mean the step size? It is usually 6, |
|
425 |
# but it is 12 for the ExposureDifference. |
|
426 |
# |
|
427 |
# Check for an error condition that could cause a crash. |
|
428 |
# This only happens if something has gone really wrong in |
|
429 |
# reading the Nikon MakerNote. |
|
430 |
if len( seq ) < 4 : return "" |
|
431 |
# |
|
432 |
if seq == [252, 1, 6, 0]: |
|
433 |
return "-2/3 EV" |
|
434 |
if seq == [253, 1, 6, 0]: |
|
435 |
return "-1/2 EV" |
|
436 |
if seq == [254, 1, 6, 0]: |
|
437 |
return "-1/3 EV" |
|
438 |
if seq == [0, 1, 6, 0]: |
|
439 |
return "0 EV" |
|
440 |
if seq == [2, 1, 6, 0]: |
|
441 |
return "+1/3 EV" |
|
442 |
if seq == [3, 1, 6, 0]: |
|
443 |
return "+1/2 EV" |
|
444 |
if seq == [4, 1, 6, 0]: |
|
445 |
return "+2/3 EV" |
|
446 |
# Handle combinations not in the table. |
|
447 |
a = seq[0] |
|
448 |
# Causes headaches for the +/- logic, so special case it. |
|
449 |
if a == 0: |
|
450 |
return "0 EV" |
|
451 |
if a > 127: |
|
452 |
a = 256 - a |
|
453 |
ret_str = "-" |
|
454 |
else: |
|
455 |
ret_str = "+" |
|
456 |
b = seq[2] # Assume third value means the step size |
|
457 |
whole = a / b |
|
458 |
a = a % b |
|
459 |
if whole != 0: |
|
460 |
ret_str = ret_str + str(whole) + " " |
|
461 |
if a == 0: |
|
462 |
ret_str = ret_str + "EV" |
|
463 |
else: |
|
464 |
r = Ratio(a, b) |
|
465 |
ret_str = ret_str + r.__repr__() + " EV" |
|
466 |
return ret_str |
|
467 |
||
468 |
# Nikon E99x MakerNote Tags |
|
469 |
MAKERNOTE_NIKON_NEWER_TAGS={ |
|
470 |
0x0001: ('MakernoteVersion', make_string), # Sometimes binary |
|
471 |
0x0002: ('ISOSetting', make_string), |
|
472 |
0x0003: ('ColorMode', ), |
|
473 |
0x0004: ('Quality', ), |
|
474 |
0x0005: ('Whitebalance', ), |
|
475 |
0x0006: ('ImageSharpening', ), |
|
476 |
0x0007: ('FocusMode', ), |
|
477 |
0x0008: ('FlashSetting', ), |
|
478 |
0x0009: ('AutoFlashMode', ), |
|
479 |
0x000B: ('WhiteBalanceBias', ), |
|
480 |
0x000C: ('WhiteBalanceRBCoeff', ), |
|
481 |
0x000D: ('ProgramShift', nikon_ev_bias), |
|
482 |
# Nearly the same as the other EV vals, but step size is 1/12 EV (?) |
|
483 |
0x000E: ('ExposureDifference', nikon_ev_bias), |
|
484 |
0x000F: ('ISOSelection', ), |
|
485 |
0x0011: ('NikonPreview', ), |
|
486 |
0x0012: ('FlashCompensation', nikon_ev_bias), |
|
487 |
0x0013: ('ISOSpeedRequested', ), |
|
488 |
0x0016: ('PhotoCornerCoordinates', ), |
|
489 |
# 0x0017: Unknown, but most likely an EV value |
|
490 |
0x0018: ('FlashBracketCompensationApplied', nikon_ev_bias), |
|
491 |
0x0019: ('AEBracketCompensationApplied', ), |
|
492 |
0x001A: ('ImageProcessing', ), |
|
493 |
0x001B: ('CropHiSpeed', ), |
|
494 |
0x001D: ('SerialNumber', ), # Conflict with 0x00A0 ? |
|
495 |
0x001E: ('ColorSpace', ), |
|
496 |
0x001F: ('VRInfo', ), |
|
497 |
0x0020: ('ImageAuthentication', ), |
|
498 |
0x0022: ('ActiveDLighting', ), |
|
499 |
0x0023: ('PictureControl', ), |
|
500 |
0x0024: ('WorldTime', ), |
|
501 |
0x0025: ('ISOInfo', ), |
|
502 |
0x0080: ('ImageAdjustment', ), |
|
503 |
0x0081: ('ToneCompensation', ), |
|
504 |
0x0082: ('AuxiliaryLens', ), |
|
505 |
0x0083: ('LensType', ), |
|
506 |
0x0084: ('LensMinMaxFocalMaxAperture', ), |
|
507 |
0x0085: ('ManualFocusDistance', ), |
|
508 |
0x0086: ('DigitalZoomFactor', ), |
|
509 |
0x0087: ('FlashMode', |
|
510 |
{0x00: 'Did Not Fire', |
|
511 |
0x01: 'Fired, Manual', |
|
512 |
0x07: 'Fired, External', |
|
513 |
0x08: 'Fired, Commander Mode ', |
|
514 |
0x09: 'Fired, TTL Mode'}), |
|
515 |
0x0088: ('AFFocusPosition', |
|
516 |
{0x0000: 'Center', |
|
517 |
0x0100: 'Top', |
|
518 |
0x0200: 'Bottom', |
|
519 |
0x0300: 'Left', |
|
520 |
0x0400: 'Right'}), |
|
521 |
0x0089: ('BracketingMode', |
|
522 |
{0x00: 'Single frame, no bracketing', |
|
523 |
0x01: 'Continuous, no bracketing', |
|
524 |
0x02: 'Timer, no bracketing', |
|
525 |
0x10: 'Single frame, exposure bracketing', |
|
526 |
0x11: 'Continuous, exposure bracketing', |
|
527 |
0x12: 'Timer, exposure bracketing', |
|
528 |
0x40: 'Single frame, white balance bracketing', |
|
529 |
0x41: 'Continuous, white balance bracketing', |
|
530 |
0x42: 'Timer, white balance bracketing'}), |
|
531 |
0x008A: ('AutoBracketRelease', ), |
|
532 |
0x008B: ('LensFStops', ), |
|
533 |
0x008C: ('NEFCurve1', ), # ExifTool calls this 'ContrastCurve' |
|
534 |
0x008D: ('ColorMode', ), |
|
535 |
0x008F: ('SceneMode', ), |
|
536 |
0x0090: ('LightingType', ), |
|
537 |
0x0091: ('ShotInfo', ), # First 4 bytes are a version number in ASCII |
|
538 |
0x0092: ('HueAdjustment', ), |
|
539 |
# ExifTool calls this 'NEFCompression', should be 1-4 |
|
540 |
0x0093: ('Compression', ), |
|
541 |
0x0094: ('Saturation', |
|
542 |
{-3: 'B&W', |
|
543 |
-2: '-2', |
|
544 |
-1: '-1', |
|
545 |
0: '0', |
|
546 |
1: '1', |
|
547 |
2: '2'}), |
|
548 |
0x0095: ('NoiseReduction', ), |
|
549 |
0x0096: ('NEFCurve2', ), # ExifTool calls this 'LinearizationTable' |
|
550 |
0x0097: ('ColorBalance', ), # First 4 bytes are a version number in ASCII |
|
551 |
0x0098: ('LensData', ), # First 4 bytes are a version number in ASCII |
|
552 |
0x0099: ('RawImageCenter', ), |
|
553 |
0x009A: ('SensorPixelSize', ), |
|
554 |
0x009C: ('Scene Assist', ), |
|
555 |
0x009E: ('RetouchHistory', ), |
|
556 |
0x00A0: ('SerialNumber', ), |
|
557 |
0x00A2: ('ImageDataSize', ), |
|
558 |
# 00A3: unknown - a single byte 0 |
|
559 |
# 00A4: In NEF, looks like a 4 byte ASCII version number ('0200') |
|
560 |
0x00A5: ('ImageCount', ), |
|
561 |
0x00A6: ('DeletedImageCount', ), |
|
562 |
0x00A7: ('TotalShutterReleases', ), |
|
563 |
# First 4 bytes are a version number in ASCII, with version specific |
|
564 |
# info to follow. Its hard to treat it as a string due to embedded nulls. |
|
565 |
0x00A8: ('FlashInfo', ), |
|
566 |
0x00A9: ('ImageOptimization', ), |
|
567 |
0x00AA: ('Saturation', ), |
|
568 |
0x00AB: ('DigitalVariProgram', ), |
|
569 |
0x00AC: ('ImageStabilization', ), |
|
570 |
0x00AD: ('Responsive AF', ), # 'AFResponse' |
|
571 |
0x00B0: ('MultiExposure', ), |
|
572 |
0x00B1: ('HighISONoiseReduction', ), |
|
573 |
0x00B7: ('AFInfo', ), |
|
574 |
0x00B8: ('FileInfo', ), |
|
575 |
# 00B9: unknown |
|
576 |
0x0100: ('DigitalICE', ), |
|
577 |
0x0103: ('PreviewCompression', |
|
578 |
{1: 'Uncompressed', |
|
579 |
2: 'CCITT 1D', |
|
580 |
3: 'T4/Group 3 Fax', |
|
581 |
4: 'T6/Group 4 Fax', |
|
582 |
5: 'LZW', |
|
583 |
6: 'JPEG (old-style)', |
|
584 |
7: 'JPEG', |
|
585 |
8: 'Adobe Deflate', |
|
586 |
9: 'JBIG B&W', |
|
587 |
10: 'JBIG Color', |
|
588 |
32766: 'Next', |
|
589 |
32769: 'Epson ERF Compressed', |
|
590 |
32771: 'CCIRLEW', |
|
591 |
32773: 'PackBits', |
|
592 |
32809: 'Thunderscan', |
|
593 |
32895: 'IT8CTPAD', |
|
594 |
32896: 'IT8LW', |
|
595 |
32897: 'IT8MP', |
|
596 |
32898: 'IT8BL', |
|
597 |
32908: 'PixarFilm', |
|
598 |
32909: 'PixarLog', |
|
599 |
32946: 'Deflate', |
|
600 |
32947: 'DCS', |
|
601 |
34661: 'JBIG', |
|
602 |
34676: 'SGILog', |
|
603 |
34677: 'SGILog24', |
|
604 |
34712: 'JPEG 2000', |
|
605 |
34713: 'Nikon NEF Compressed', |
|
606 |
65000: 'Kodak DCR Compressed', |
|
607 |
65535: 'Pentax PEF Compressed',}), |
|
608 |
0x0201: ('PreviewImageStart', ), |
|
609 |
0x0202: ('PreviewImageLength', ), |
|
610 |
0x0213: ('PreviewYCbCrPositioning', |
|
611 |
{1: 'Centered', |
|
612 |
2: 'Co-sited'}), |
|
613 |
0x0010: ('DataDump', ), |
|
614 |
} |
|
615 |
||
616 |
MAKERNOTE_NIKON_OLDER_TAGS = { |
|
617 |
0x0003: ('Quality', |
|
618 |
{1: 'VGA Basic', |
|
619 |
2: 'VGA Normal', |
|
620 |
3: 'VGA Fine', |
|
621 |
4: 'SXGA Basic', |
|
622 |
5: 'SXGA Normal', |
|
623 |
6: 'SXGA Fine'}), |
|
624 |
0x0004: ('ColorMode', |
|
625 |
{1: 'Color', |
|
626 |
2: 'Monochrome'}), |
|
627 |
0x0005: ('ImageAdjustment', |
|
628 |
{0: 'Normal', |
|
629 |
1: 'Bright+', |
|
630 |
2: 'Bright-', |
|
631 |
3: 'Contrast+', |
|
632 |
4: 'Contrast-'}), |
|
633 |
0x0006: ('CCDSpeed', |
|
634 |
{0: 'ISO 80', |
|
635 |
2: 'ISO 160', |
|
636 |
4: 'ISO 320', |
|
637 |
5: 'ISO 100'}), |
|
638 |
0x0007: ('WhiteBalance', |
|
639 |
{0: 'Auto', |
|
640 |
1: 'Preset', |
|
641 |
2: 'Daylight', |
|
642 |
3: 'Incandescent', |
|
643 |
4: 'Fluorescent', |
|
644 |
5: 'Cloudy', |
|
645 |
6: 'Speed Light'}), |
|
646 |
} |
|
647 |
||
648 |
# decode Olympus SpecialMode tag in MakerNote |
|
649 |
def olympus_special_mode(v): |
|
650 |
a={ |
|
651 |
0: 'Normal', |
|
652 |
1: 'Unknown', |
|
653 |
2: 'Fast', |
|
654 |
3: 'Panorama'} |
|
655 |
b={ |
|
656 |
0: 'Non-panoramic', |
|
657 |
1: 'Left to right', |
|
658 |
2: 'Right to left', |
|
659 |
3: 'Bottom to top', |
|
660 |
4: 'Top to bottom'} |
|
661 |
if v[0] not in a or v[2] not in b: |
|
662 |
return v |
|
663 |
return '%s - sequence %d - %s' % (a[v[0]], v[1], b[v[2]]) |
|
664 |
||
665 |
MAKERNOTE_OLYMPUS_TAGS={ |
|
666 |
# ah HAH! those sneeeeeaky bastids! this is how they get past the fact |
|
667 |
# that a JPEG thumbnail is not allowed in an uncompressed TIFF file |
|
668 |
0x0100: ('JPEGThumbnail', ), |
|
669 |
0x0200: ('SpecialMode', olympus_special_mode), |
|
670 |
0x0201: ('JPEGQual', |
|
671 |
{1: 'SQ', |
|
672 |
2: 'HQ', |
|
673 |
3: 'SHQ'}), |
|
674 |
0x0202: ('Macro', |
|
675 |
{0: 'Normal', |
|
676 |
1: 'Macro', |
|
677 |
2: 'SuperMacro'}), |
|
678 |
0x0203: ('BWMode', |
|
679 |
{0: 'Off', |
|
680 |
1: 'On'}), |
|
681 |
0x0204: ('DigitalZoom', ), |
|
682 |
0x0205: ('FocalPlaneDiagonal', ), |
|
683 |
0x0206: ('LensDistortionParams', ), |
|
684 |
0x0207: ('SoftwareRelease', ), |
|
685 |
0x0208: ('PictureInfo', ), |
|
686 |
0x0209: ('CameraID', make_string), # print as string |
|
687 |
0x0F00: ('DataDump', ), |
|
688 |
0x0300: ('PreCaptureFrames', ), |
|
689 |
0x0404: ('SerialNumber', ), |
|
690 |
0x1000: ('ShutterSpeedValue', ), |
|
691 |
0x1001: ('ISOValue', ), |
|
692 |
0x1002: ('ApertureValue', ), |
|
693 |
0x1003: ('BrightnessValue', ), |
|
694 |
0x1004: ('FlashMode', ), |
|
695 |
0x1004: ('FlashMode', |
|
696 |
{2: 'On', |
|
697 |
3: 'Off'}), |
|
698 |
0x1005: ('FlashDevice', |
|
699 |
{0: 'None', |
|
700 |
1: 'Internal', |
|
701 |
4: 'External', |
|
702 |
5: 'Internal + External'}), |
|
703 |
0x1006: ('ExposureCompensation', ), |
|
704 |
0x1007: ('SensorTemperature', ), |
|
705 |
0x1008: ('LensTemperature', ), |
|
706 |
0x100b: ('FocusMode', |
|
707 |
{0: 'Auto', |
|
708 |
1: 'Manual'}), |
|
709 |
0x1017: ('RedBalance', ), |
|
710 |
0x1018: ('BlueBalance', ), |
|
711 |
0x101a: ('SerialNumber', ), |
|
712 |
0x1023: ('FlashExposureComp', ), |
|
713 |
0x1026: ('ExternalFlashBounce', |
|
714 |
{0: 'No', |
|
715 |
1: 'Yes'}), |
|
716 |
0x1027: ('ExternalFlashZoom', ), |
|
717 |
0x1028: ('ExternalFlashMode', ), |
|
718 |
0x1029: ('Contrast int16u', |
|
719 |
{0: 'High', |
|
720 |
1: 'Normal', |
|
721 |
2: 'Low'}), |
|
722 |
0x102a: ('SharpnessFactor', ), |
|
723 |
0x102b: ('ColorControl', ), |
|
724 |
0x102c: ('ValidBits', ), |
|
725 |
0x102d: ('CoringFilter', ), |
|
726 |
0x102e: ('OlympusImageWidth', ), |
|
727 |
0x102f: ('OlympusImageHeight', ), |
|
728 |
0x1034: ('CompressionRatio', ), |
|
729 |
0x1035: ('PreviewImageValid', |
|
730 |
{0: 'No', |
|
731 |
1: 'Yes'}), |
|
732 |
0x1036: ('PreviewImageStart', ), |
|
733 |
0x1037: ('PreviewImageLength', ), |
|
734 |
0x1039: ('CCDScanMode', |
|
735 |
{0: 'Interlaced', |
|
736 |
1: 'Progressive'}), |
|
737 |
0x103a: ('NoiseReduction', |
|
738 |
{0: 'Off', |
|
739 |
1: 'On'}), |
|
740 |
0x103b: ('InfinityLensStep', ), |
|
741 |
0x103c: ('NearLensStep', ), |
|
742 |
||
743 |
# TODO - these need extra definitions |
|
744 |
# http://search.cpan.org/src/EXIFTOOL/Image-ExifTool-6.90/html/TagNames/Olympus.html |
|
745 |
0x2010: ('Equipment', ), |
|
746 |
0x2020: ('CameraSettings', ), |
|
747 |
0x2030: ('RawDevelopment', ), |
|
748 |
0x2040: ('ImageProcessing', ), |
|
749 |
0x2050: ('FocusInfo', ), |
|
750 |
0x3000: ('RawInfo ', ), |
|
751 |
} |
|
752 |
||
753 |
# 0x2020 CameraSettings |
|
754 |
MAKERNOTE_OLYMPUS_TAG_0x2020={ |
|
755 |
0x0100: ('PreviewImageValid', |
|
756 |
{0: 'No', |
|
757 |
1: 'Yes'}), |
|
758 |
0x0101: ('PreviewImageStart', ), |
|
759 |
0x0102: ('PreviewImageLength', ), |
|
760 |
0x0200: ('ExposureMode', |
|
761 |
{1: 'Manual', |
|
762 |
2: 'Program', |
|
763 |
3: 'Aperture-priority AE', |
|
764 |
4: 'Shutter speed priority AE', |
|
765 |
5: 'Program-shift'}), |
|
766 |
0x0201: ('AELock', |
|
767 |
{0: 'Off', |
|
768 |
1: 'On'}), |
|
769 |
0x0202: ('MeteringMode', |
|
770 |
{2: 'Center Weighted', |
|
771 |
3: 'Spot', |
|
772 |
5: 'ESP', |
|
773 |
261: 'Pattern+AF', |
|
774 |
515: 'Spot+Highlight control', |
|
775 |
1027: 'Spot+Shadow control'}), |
|
776 |
0x0300: ('MacroMode', |
|
777 |
{0: 'Off', |
|
778 |
1: 'On'}), |
|
779 |
0x0301: ('FocusMode', |
|
780 |
{0: 'Single AF', |
|
781 |
1: 'Sequential shooting AF', |
|
782 |
2: 'Continuous AF', |
|
783 |
3: 'Multi AF', |
|
784 |
10: 'MF'}), |
|
785 |
0x0302: ('FocusProcess', |
|
786 |
{0: 'AF Not Used', |
|
787 |
1: 'AF Used'}), |
|
788 |
0x0303: ('AFSearch', |
|
789 |
{0: 'Not Ready', |
|
790 |
1: 'Ready'}), |
|
791 |
0x0304: ('AFAreas', ), |
|
792 |
0x0401: ('FlashExposureCompensation', ), |
|
793 |
0x0500: ('WhiteBalance2', |
|
794 |
{0: 'Auto', |
|
795 |
16: '7500K (Fine Weather with Shade)', |
|
796 |
17: '6000K (Cloudy)', |
|
797 |
18: '5300K (Fine Weather)', |
|
798 |
20: '3000K (Tungsten light)', |
|
799 |
21: '3600K (Tungsten light-like)', |
|
800 |
33: '6600K (Daylight fluorescent)', |
|
801 |
34: '4500K (Neutral white fluorescent)', |
|
802 |
35: '4000K (Cool white fluorescent)', |
|
803 |
48: '3600K (Tungsten light-like)', |
|
804 |
256: 'Custom WB 1', |
|
805 |
257: 'Custom WB 2', |
|
806 |
258: 'Custom WB 3', |
|
807 |
259: 'Custom WB 4', |
|
808 |
512: 'Custom WB 5400K', |
|
809 |
513: 'Custom WB 2900K', |
|
810 |
514: 'Custom WB 8000K', }), |
|
811 |
0x0501: ('WhiteBalanceTemperature', ), |
|
812 |
0x0502: ('WhiteBalanceBracket', ), |
|
813 |
0x0503: ('CustomSaturation', ), # (3 numbers: 1. CS Value, 2. Min, 3. Max) |
|
814 |
0x0504: ('ModifiedSaturation', |
|
815 |
{0: 'Off', |
|
816 |
1: 'CM1 (Red Enhance)', |
|
817 |
2: 'CM2 (Green Enhance)', |
|
818 |
3: 'CM3 (Blue Enhance)', |
|
819 |
4: 'CM4 (Skin Tones)'}), |
|
820 |
0x0505: ('ContrastSetting', ), # (3 numbers: 1. Contrast, 2. Min, 3. Max) |
|
821 |
0x0506: ('SharpnessSetting', ), # (3 numbers: 1. Sharpness, 2. Min, 3. Max) |
|
822 |
0x0507: ('ColorSpace', |
|
823 |
{0: 'sRGB', |
|
824 |
1: 'Adobe RGB', |
|
825 |
2: 'Pro Photo RGB'}), |
|
826 |
0x0509: ('SceneMode', |
|
827 |
{0: 'Standard', |
|
828 |
6: 'Auto', |
|
829 |
7: 'Sport', |
|
830 |
8: 'Portrait', |
|
831 |
9: 'Landscape+Portrait', |
|
832 |
10: 'Landscape', |
|
833 |
11: 'Night scene', |
|
834 |
13: 'Panorama', |
|
835 |
16: 'Landscape+Portrait', |
|
836 |
17: 'Night+Portrait', |
|
837 |
19: 'Fireworks', |
|
838 |
20: 'Sunset', |
|
839 |
22: 'Macro', |
|
840 |
25: 'Documents', |
|
841 |
26: 'Museum', |
|
842 |
28: 'Beach&Snow', |
|
843 |
30: 'Candle', |
|
844 |
35: 'Underwater Wide1', |
|
845 |
36: 'Underwater Macro', |
|
846 |
39: 'High Key', |
|
847 |
40: 'Digital Image Stabilization', |
|
848 |
44: 'Underwater Wide2', |
|
849 |
45: 'Low Key', |
|
850 |
46: 'Children', |
|
851 |
48: 'Nature Macro'}), |
|
852 |
0x050a: ('NoiseReduction', |
|
853 |
{0: 'Off', |
|
854 |
1: 'Noise Reduction', |
|
855 |
2: 'Noise Filter', |
|
856 |
3: 'Noise Reduction + Noise Filter', |
|
857 |
4: 'Noise Filter (ISO Boost)', |
|
858 |
5: 'Noise Reduction + Noise Filter (ISO Boost)'}), |
|
859 |
0x050b: ('DistortionCorrection', |
|
860 |
{0: 'Off', |
|
861 |
1: 'On'}), |
|
862 |
0x050c: ('ShadingCompensation', |
|
863 |
{0: 'Off', |
|
864 |
1: 'On'}), |
|
865 |
0x050d: ('CompressionFactor', ), |
|
866 |
0x050f: ('Gradation', |
|
867 |
{'-1 -1 1': 'Low Key', |
|
868 |
'0 -1 1': 'Normal', |
|
869 |
'1 -1 1': 'High Key'}), |
|
870 |
0x0520: ('PictureMode', |
|
871 |
{1: 'Vivid', |
|
872 |
2: 'Natural', |
|
873 |
3: 'Muted', |
|
874 |
256: 'Monotone', |
|
875 |
512: 'Sepia'}), |
|
876 |
0x0521: ('PictureModeSaturation', ), |
|
877 |
0x0522: ('PictureModeHue?', ), |
|
878 |
0x0523: ('PictureModeContrast', ), |
|
879 |
0x0524: ('PictureModeSharpness', ), |
|
880 |
0x0525: ('PictureModeBWFilter', |
|
881 |
{0: 'n/a', |
|
882 |
1: 'Neutral', |
|
883 |
2: 'Yellow', |
|
884 |
3: 'Orange', |
|
885 |
4: 'Red', |
|
886 |
5: 'Green'}), |
|
887 |
0x0526: ('PictureModeTone', |
|
888 |
{0: 'n/a', |
|
889 |
1: 'Neutral', |
|
890 |
2: 'Sepia', |
|
891 |
3: 'Blue', |
|
892 |
4: 'Purple', |
|
893 |
5: 'Green'}), |
|
894 |
0x0600: ('Sequence', ), # 2 or 3 numbers: 1. Mode, 2. Shot number, 3. Mode bits |
|
895 |
0x0601: ('PanoramaMode', ), # (2 numbers: 1. Mode, 2. Shot number) |
|
896 |
0x0603: ('ImageQuality2', |
|
897 |
{1: 'SQ', |
|
898 |
2: 'HQ', |
|
899 |
3: 'SHQ', |
|
900 |
4: 'RAW'}), |
|
901 |
0x0901: ('ManometerReading', ), |
|
902 |
} |
|
903 |
||
904 |
||
905 |
MAKERNOTE_CASIO_TAGS={ |
|
906 |
0x0001: ('RecordingMode', |
|
907 |
{1: 'Single Shutter', |
|
908 |
2: 'Panorama', |
|
909 |
3: 'Night Scene', |
|
910 |
4: 'Portrait', |
|
911 |
5: 'Landscape'}), |
|
912 |
0x0002: ('Quality', |
|
913 |
{1: 'Economy', |
|
914 |
2: 'Normal', |
|
915 |
3: 'Fine'}), |
|
916 |
0x0003: ('FocusingMode', |
|
917 |
{2: 'Macro', |
|
918 |
3: 'Auto Focus', |
|
919 |
4: 'Manual Focus', |
|
920 |
5: 'Infinity'}), |
|
921 |
0x0004: ('FlashMode', |
|
922 |
{1: 'Auto', |
|
923 |
2: 'On', |
|
924 |
3: 'Off', |
|
925 |
4: 'Red Eye Reduction'}), |
|
926 |
0x0005: ('FlashIntensity', |
|
927 |
{11: 'Weak', |
|
928 |
13: 'Normal', |
|
929 |
15: 'Strong'}), |
|
930 |
0x0006: ('Object Distance', ), |
|
931 |
0x0007: ('WhiteBalance', |
|
932 |
{1: 'Auto', |
|
933 |
2: 'Tungsten', |
|
934 |
3: 'Daylight', |
|
935 |
4: 'Fluorescent', |
|
936 |
5: 'Shade', |
|
937 |
129: 'Manual'}), |
|
938 |
0x000B: ('Sharpness', |
|
939 |
{0: 'Normal', |
|
940 |
1: 'Soft', |
|
941 |
2: 'Hard'}), |
|
942 |
0x000C: ('Contrast', |
|
943 |
{0: 'Normal', |
|
944 |
1: 'Low', |
|
945 |
2: 'High'}), |
|
946 |
0x000D: ('Saturation', |
|
947 |
{0: 'Normal', |
|
948 |
1: 'Low', |
|
949 |
2: 'High'}), |
|
950 |
0x0014: ('CCDSpeed', |
|
951 |
{64: 'Normal', |
|
952 |
80: 'Normal', |
|
953 |
100: 'High', |
|
954 |
125: '+1.0', |
|
955 |
244: '+3.0', |
|
956 |
250: '+2.0'}), |
|
957 |
} |
|
958 |
||
959 |
MAKERNOTE_FUJIFILM_TAGS={ |
|
960 |
0x0000: ('NoteVersion', make_string), |
|
961 |
0x1000: ('Quality', ), |
|
962 |
0x1001: ('Sharpness', |
|
963 |
{1: 'Soft', |
|
964 |
2: 'Soft', |
|
965 |
3: 'Normal', |
|
966 |
4: 'Hard', |
|
967 |
5: 'Hard'}), |
|
968 |
0x1002: ('WhiteBalance', |
|
969 |
{0: 'Auto', |
|
970 |
256: 'Daylight', |
|
971 |
512: 'Cloudy', |
|
972 |
768: 'DaylightColor-Fluorescent', |
|
973 |
769: 'DaywhiteColor-Fluorescent', |
|
974 |
770: 'White-Fluorescent', |
|
975 |
1024: 'Incandescent', |
|
976 |
3840: 'Custom'}), |
|
977 |
0x1003: ('Color', |
|
978 |
{0: 'Normal', |
|
979 |
256: 'High', |
|
980 |
512: 'Low'}), |
|
981 |
0x1004: ('Tone', |
|
982 |
{0: 'Normal', |
|
983 |
256: 'High', |
|
984 |
512: 'Low'}), |
|
985 |
0x1010: ('FlashMode', |
|
986 |
{0: 'Auto', |
|
987 |
1: 'On', |
|
988 |
2: 'Off', |
|
989 |
3: 'Red Eye Reduction'}), |
|
990 |
0x1011: ('FlashStrength', ), |
|
991 |
0x1020: ('Macro', |
|
992 |
{0: 'Off', |
|
993 |
1: 'On'}), |
|
994 |
0x1021: ('FocusMode', |
|
995 |
{0: 'Auto', |
|
996 |
1: 'Manual'}), |
|
997 |
0x1030: ('SlowSync', |
|
998 |
{0: 'Off', |
|
999 |
1: 'On'}), |
|
1000 |
0x1031: ('PictureMode', |
|
1001 |
{0: 'Auto', |
|
1002 |
1: 'Portrait', |
|
1003 |
2: 'Landscape', |
|
1004 |
4: 'Sports', |
|
1005 |
5: 'Night', |
|
1006 |
6: 'Program AE', |
|
1007 |
256: 'Aperture Priority AE', |
|
1008 |
512: 'Shutter Priority AE', |
|
1009 |
768: 'Manual Exposure'}), |
|
1010 |
0x1100: ('MotorOrBracket', |
|
1011 |
{0: 'Off', |
|
1012 |
1: 'On'}), |
|
1013 |
0x1300: ('BlurWarning', |
|
1014 |
{0: 'Off', |
|
1015 |
1: 'On'}), |
|
1016 |
0x1301: ('FocusWarning', |
|
1017 |
{0: 'Off', |
|
1018 |
1: 'On'}), |
|
1019 |
0x1302: ('AEWarning', |
|
1020 |
{0: 'Off', |
|
1021 |
1: 'On'}), |
|
1022 |
} |
|
1023 |
||
1024 |
MAKERNOTE_CANON_TAGS = { |
|
1025 |
0x0006: ('ImageType', ), |
|
1026 |
0x0007: ('FirmwareVersion', ), |
|
1027 |
0x0008: ('ImageNumber', ), |
|
1028 |
0x0009: ('OwnerName', ), |
|
1029 |
} |
|
1030 |
||
1031 |
# this is in element offset, name, optional value dictionary format |
|
1032 |
MAKERNOTE_CANON_TAG_0x001 = { |
|
1033 |
1: ('Macromode', |
|
1034 |
{1: 'Macro', |
|
1035 |
2: 'Normal'}), |
|
1036 |
2: ('SelfTimer', ), |
|
1037 |
3: ('Quality', |
|
1038 |
{2: 'Normal', |
|
1039 |
3: 'Fine', |
|
1040 |
5: 'Superfine'}), |
|
1041 |
4: ('FlashMode', |
|
1042 |
{0: 'Flash Not Fired', |
|
1043 |
1: 'Auto', |
|
1044 |
2: 'On', |
|
1045 |
3: 'Red-Eye Reduction', |
|
1046 |
4: 'Slow Synchro', |
|
1047 |
5: 'Auto + Red-Eye Reduction', |
|
1048 |
6: 'On + Red-Eye Reduction', |
|
1049 |
16: 'external flash'}), |
|
1050 |
5: ('ContinuousDriveMode', |
|
1051 |
{0: 'Single Or Timer', |
|
1052 |
1: 'Continuous'}), |
|
1053 |
7: ('FocusMode', |
|
1054 |
{0: 'One-Shot', |
|
1055 |
1: 'AI Servo', |
|
1056 |
2: 'AI Focus', |
|
1057 |
3: 'MF', |
|
1058 |
4: 'Single', |
|
1059 |
5: 'Continuous', |
|
1060 |
6: 'MF'}), |
|
1061 |
10: ('ImageSize', |
|
1062 |
{0: 'Large', |
|
1063 |
1: 'Medium', |
|
1064 |
2: 'Small'}), |
|
1065 |
11: ('EasyShootingMode', |
|
1066 |
{0: 'Full Auto', |
|
1067 |
1: 'Manual', |
|
1068 |
2: 'Landscape', |
|
1069 |
3: 'Fast Shutter', |
|
1070 |
4: 'Slow Shutter', |
|
1071 |
5: 'Night', |
|
1072 |
6: 'B&W', |
|
1073 |
7: 'Sepia', |
|
1074 |
8: 'Portrait', |
|
1075 |
9: 'Sports', |
|
1076 |
10: 'Macro/Close-Up', |
|
1077 |
11: 'Pan Focus'}), |
|
1078 |
12: ('DigitalZoom', |
|
1079 |
{0: 'None', |
|
1080 |
1: '2x', |
|
1081 |
2: '4x'}), |
|
1082 |
13: ('Contrast', |
|
1083 |
{0xFFFF: 'Low', |
|
1084 |
0: 'Normal', |
|
1085 |
1: 'High'}), |
|
1086 |
14: ('Saturation', |
|
1087 |
{0xFFFF: 'Low', |
|
1088 |
0: 'Normal', |
|
1089 |
1: 'High'}), |
|
1090 |
15: ('Sharpness', |
|
1091 |
{0xFFFF: 'Low', |
|
1092 |
0: 'Normal', |
|
1093 |
1: 'High'}), |
|
1094 |
16: ('ISO', |
|
1095 |
{0: 'See ISOSpeedRatings Tag', |
|
1096 |
15: 'Auto', |
|
1097 |
16: '50', |
|
1098 |
17: '100', |
|
1099 |
18: '200', |
|
1100 |
19: '400'}), |
|
1101 |
17: ('MeteringMode', |
|
1102 |
{3: 'Evaluative', |
|
1103 |
4: 'Partial', |
|
1104 |
5: 'Center-weighted'}), |
|
1105 |
18: ('FocusType', |
|
1106 |
{0: 'Manual', |
|
1107 |
1: 'Auto', |
|
1108 |
3: 'Close-Up (Macro)', |
|
1109 |
8: 'Locked (Pan Mode)'}), |
|
1110 |
19: ('AFPointSelected', |
|
1111 |
{0x3000: 'None (MF)', |
|
1112 |
0x3001: 'Auto-Selected', |
|
1113 |
0x3002: 'Right', |
|
1114 |
0x3003: 'Center', |
|
1115 |
0x3004: 'Left'}), |
|
1116 |
20: ('ExposureMode', |
|
1117 |
{0: 'Easy Shooting', |
|
1118 |
1: 'Program', |
|
1119 |
2: 'Tv-priority', |
|
1120 |
3: 'Av-priority', |
|
1121 |
4: 'Manual', |
|
1122 |
5: 'A-DEP'}), |
|
1123 |
23: ('LongFocalLengthOfLensInFocalUnits', ), |
|
1124 |
24: ('ShortFocalLengthOfLensInFocalUnits', ), |
|
1125 |
25: ('FocalUnitsPerMM', ), |
|
1126 |
28: ('FlashActivity', |
|
1127 |
{0: 'Did Not Fire', |
|
1128 |
1: 'Fired'}), |
|
1129 |
29: ('FlashDetails', |
|
1130 |
{14: 'External E-TTL', |
|
1131 |
13: 'Internal Flash', |
|
1132 |
11: 'FP Sync Used', |
|
1133 |
7: '2nd("Rear")-Curtain Sync Used', |
|
1134 |
4: 'FP Sync Enabled'}), |
|
1135 |
32: ('FocusMode', |
|
1136 |
{0: 'Single', |
|
1137 |
1: 'Continuous'}), |
|
1138 |
} |
|
1139 |
||
1140 |
MAKERNOTE_CANON_TAG_0x004 = { |
|
1141 |
7: ('WhiteBalance', |
|
1142 |
{0: 'Auto', |
|
1143 |
1: 'Sunny', |
|
1144 |
2: 'Cloudy', |
|
1145 |
3: 'Tungsten', |
|
1146 |
4: 'Fluorescent', |
|
1147 |
5: 'Flash', |
|
1148 |
6: 'Custom'}), |
|
1149 |
9: ('SequenceNumber', ), |
|
1150 |
14: ('AFPointUsed', ), |
|
1151 |
15: ('FlashBias', |
|
1152 |
{0xFFC0: '-2 EV', |
|
1153 |
0xFFCC: '-1.67 EV', |
|
1154 |
0xFFD0: '-1.50 EV', |
|
1155 |
0xFFD4: '-1.33 EV', |
|
1156 |
0xFFE0: '-1 EV', |
|
1157 |
0xFFEC: '-0.67 EV', |
|
1158 |
0xFFF0: '-0.50 EV', |
|
1159 |
0xFFF4: '-0.33 EV', |
|
1160 |
0x0000: '0 EV', |
|
1161 |
0x000C: '0.33 EV', |
|
1162 |
0x0010: '0.50 EV', |
|
1163 |
0x0014: '0.67 EV', |
|
1164 |
0x0020: '1 EV', |
|
1165 |
0x002C: '1.33 EV', |
|
1166 |
0x0030: '1.50 EV', |
|
1167 |
0x0034: '1.67 EV', |
|
1168 |
0x0040: '2 EV'}), |
|
1169 |
19: ('SubjectDistance', ), |
|
1170 |
} |
|
1171 |
||
1172 |
# extract multibyte integer in Motorola format (little endian) |
|
1173 |
def s2n_motorola(str): |
|
1174 |
x = 0 |
|
1175 |
for c in str: |
|
1176 |
x = (x << 8) | ord(c) |
|
1177 |
return x |
|
1178 |
||
1179 |
# extract multibyte integer in Intel format (big endian) |
|
1180 |
def s2n_intel(str): |
|
1181 |
x = 0 |
|
1182 |
y = 0L |
|
1183 |
for c in str: |
|
1184 |
x = x | (ord(c) << y) |
|
1185 |
y = y + 8 |
|
1186 |
return x |
|
1187 |
||
1188 |
# ratio object that eventually will be able to reduce itself to lowest |
|
1189 |
# common denominator for printing |
|
1190 |
def gcd(a, b): |
|
1191 |
if b == 0: |
|
1192 |
return a |
|
1193 |
else: |
|
1194 |
return gcd(b, a % b) |
|
1195 |
||
1196 |
class Ratio: |
|
1197 |
def __init__(self, num, den): |
|
1198 |
self.num = num |
|
1199 |
self.den = den |
|
1200 |
||
1201 |
def __repr__(self): |
|
1202 |
self.reduce() |
|
1203 |
if self.den == 1: |
|
1204 |
return str(self.num) |
|
1205 |
return '%d/%d' % (self.num, self.den) |
|
1206 |
||
1207 |
def reduce(self): |
|
1208 |
div = gcd(self.num, self.den) |
|
1209 |
if div > 1: |
|
1210 |
self.num = self.num / div |
|
1211 |
self.den = self.den / div |
|
1212 |
||
1213 |
# for ease of dealing with tags |
|
1214 |
class IFD_Tag: |
|
1215 |
def __init__(self, printable, tag, field_type, values, field_offset, |
|
1216 |
field_length): |
|
1217 |
# printable version of data |
|
1218 |
self.printable = printable |
|
1219 |
# tag ID number |
|
1220 |
self.tag = tag |
|
1221 |
# field type as index into FIELD_TYPES |
|
1222 |
self.field_type = field_type |
|
1223 |
# offset of start of field in bytes from beginning of IFD |
|
1224 |
self.field_offset = field_offset |
|
1225 |
# length of data field in bytes |
|
1226 |
self.field_length = field_length |
|
1227 |
# either a string or array of data items |
|
1228 |
self.values = values |
|
1229 |
||
1230 |
def __str__(self): |
|
1231 |
return self.printable |
|
1232 |
||
1233 |
def __repr__(self): |
|
1234 |
return '(0x%04X) %s=%s @ %d' % (self.tag, |
|
1235 |
FIELD_TYPES[self.field_type][2], |
|
1236 |
self.printable, |
|
1237 |
self.field_offset) |
|
1238 |
||
1239 |
# class that handles an EXIF header |
|
1240 |
class EXIF_header: |
|
1241 |
def __init__(self, file, endian, offset, fake_exif, strict, debug=0): |
|
1242 |
self.file = file |
|
98
d7d98c4479ab
modify EXIF.py to use mmap in the hope of slightly better improvements with less syscalls
Tero Marttila <terom@fixme.fi>
parents:
54
diff
changeset
|
1243 |
self.mmap = mmap.mmap(file.fileno(), 0, access=mmap.ACCESS_READ) |
54 | 1244 |
self.endian = endian |
1245 |
self.offset = offset |
|
1246 |
self.fake_exif = fake_exif |
|
1247 |
self.strict = strict |
|
1248 |
self.debug = debug |
|
1249 |
self.tags = {} |
|
98
d7d98c4479ab
modify EXIF.py to use mmap in the hope of slightly better improvements with less syscalls
Tero Marttila <terom@fixme.fi>
parents:
54
diff
changeset
|
1250 |
|
d7d98c4479ab
modify EXIF.py to use mmap in the hope of slightly better improvements with less syscalls
Tero Marttila <terom@fixme.fi>
parents:
54
diff
changeset
|
1251 |
def pread(self, reloffset, length): |
d7d98c4479ab
modify EXIF.py to use mmap in the hope of slightly better improvements with less syscalls
Tero Marttila <terom@fixme.fi>
parents:
54
diff
changeset
|
1252 |
"""Read <length> bytes from self.file at relative offset <offset>""" |
d7d98c4479ab
modify EXIF.py to use mmap in the hope of slightly better improvements with less syscalls
Tero Marttila <terom@fixme.fi>
parents:
54
diff
changeset
|
1253 |
|
d7d98c4479ab
modify EXIF.py to use mmap in the hope of slightly better improvements with less syscalls
Tero Marttila <terom@fixme.fi>
parents:
54
diff
changeset
|
1254 |
offset = self.offset + reloffset |
d7d98c4479ab
modify EXIF.py to use mmap in the hope of slightly better improvements with less syscalls
Tero Marttila <terom@fixme.fi>
parents:
54
diff
changeset
|
1255 |
|
d7d98c4479ab
modify EXIF.py to use mmap in the hope of slightly better improvements with less syscalls
Tero Marttila <terom@fixme.fi>
parents:
54
diff
changeset
|
1256 |
return self.mmap[offset:offset + length] |
54 | 1257 |
|
1258 |
# convert slice to integer, based on sign and endian flags |
|
1259 |
# usually this offset is assumed to be relative to the beginning of the |
|
1260 |
# start of the EXIF information. For some cameras that use relative tags, |
|
1261 |
# this offset may be relative to some other starting point. |
|
1262 |
def s2n(self, offset, length, signed=0): |
|
98
d7d98c4479ab
modify EXIF.py to use mmap in the hope of slightly better improvements with less syscalls
Tero Marttila <terom@fixme.fi>
parents:
54
diff
changeset
|
1263 |
slice=self.pread(offset, length) |
54 | 1264 |
if self.endian == 'I': |
1265 |
val=s2n_intel(slice) |
|
1266 |
else: |
|
1267 |
val=s2n_motorola(slice) |
|
1268 |
# Sign extension ? |
|
1269 |
if signed: |
|
1270 |
msb=1L << (8*length-1) |
|
1271 |
if val & msb: |
|
1272 |
val=val-(msb << 1) |
|
1273 |
return val |
|
1274 |
||
1275 |
# convert offset to string |
|
1276 |
def n2s(self, offset, length): |
|
1277 |
s = '' |
|
1278 |
for dummy in range(length): |
|
1279 |
if self.endian == 'I': |
|
1280 |
s = s + chr(offset & 0xFF) |
|
1281 |
else: |
|
1282 |
s = chr(offset & 0xFF) + s |
|
1283 |
offset = offset >> 8 |
|
1284 |
return s |
|
1285 |
||
1286 |
# return first IFD |
|
1287 |
def first_IFD(self): |
|
1288 |
return self.s2n(4, 4) |
|
1289 |
||
1290 |
# return pointer to next IFD |
|
1291 |
def next_IFD(self, ifd): |
|
1292 |
entries=self.s2n(ifd, 2) |
|
1293 |
return self.s2n(ifd+2+12*entries, 4) |
|
1294 |
||
1295 |
# return list of IFDs in header |
|
1296 |
def list_IFDs(self): |
|
1297 |
i=self.first_IFD() |
|
1298 |
a=[] |
|
1299 |
while i: |
|
1300 |
a.append(i) |
|
1301 |
i=self.next_IFD(i) |
|
1302 |
return a |
|
1303 |
||
1304 |
# return list of entries in this IFD |
|
1305 |
def dump_IFD(self, ifd, ifd_name, dict=EXIF_TAGS, relative=0, stop_tag='UNDEF'): |
|
1306 |
entries=self.s2n(ifd, 2) |
|
1307 |
for i in range(entries): |
|
1308 |
# entry is index of start of this IFD in the file |
|
1309 |
entry = ifd + 2 + 12 * i |
|
1310 |
tag = self.s2n(entry, 2) |
|
1311 |
||
1312 |
# get tag name early to avoid errors, help debug |
|
1313 |
tag_entry = dict.get(tag) |
|
1314 |
if tag_entry: |
|
1315 |
tag_name = tag_entry[0] |
|
1316 |
else: |
|
1317 |
tag_name = 'Tag 0x%04X' % tag |
|
1318 |
||
1319 |
# ignore certain tags for faster processing |
|
1320 |
if not (not detailed and tag in IGNORE_TAGS): |
|
1321 |
field_type = self.s2n(entry + 2, 2) |
|
1322 |
||
1323 |
# unknown field type |
|
1324 |
if not 0 < field_type < len(FIELD_TYPES): |
|
1325 |
if not self.strict: |
|
1326 |
continue |
|
1327 |
else: |
|
1328 |
raise ValueError('unknown type %d in tag 0x%04X' % (field_type, tag)) |
|
1329 |
||
1330 |
typelen = FIELD_TYPES[field_type][0] |
|
1331 |
count = self.s2n(entry + 4, 4) |
|
1332 |
# Adjust for tag id/type/count (2+2+4 bytes) |
|
1333 |
# Now we point at either the data or the 2nd level offset |
|
1334 |
offset = entry + 8 |
|
1335 |
||
1336 |
# If the value fits in 4 bytes, it is inlined, else we |
|
1337 |
# need to jump ahead again. |
|
1338 |
if count * typelen > 4: |
|
1339 |
# offset is not the value; it's a pointer to the value |
|
1340 |
# if relative we set things up so s2n will seek to the right |
|
1341 |
# place when it adds self.offset. Note that this 'relative' |
|
1342 |
# is for the Nikon type 3 makernote. Other cameras may use |
|
1343 |
# other relative offsets, which would have to be computed here |
|
1344 |
# slightly differently. |
|
1345 |
if relative: |
|
1346 |
tmp_offset = self.s2n(offset, 4) |
|
1347 |
offset = tmp_offset + ifd - 8 |
|
1348 |
if self.fake_exif: |
|
1349 |
offset = offset + 18 |
|
1350 |
else: |
|
1351 |
offset = self.s2n(offset, 4) |
|
1352 |
||
1353 |
field_offset = offset |
|
1354 |
if field_type == 2: |
|
1355 |
# special case: null-terminated ASCII string |
|
1356 |
# XXX investigate |
|
1357 |
# sometimes gets too big to fit in int value |
|
1358 |
if count != 0 and count < (2**31): |
|
98
d7d98c4479ab
modify EXIF.py to use mmap in the hope of slightly better improvements with less syscalls
Tero Marttila <terom@fixme.fi>
parents:
54
diff
changeset
|
1359 |
values = self.pread(offset, count) |
54 | 1360 |
#print values |
1361 |
# Drop any garbage after a null. |
|
1362 |
values = values.split('\x00', 1)[0] |
|
1363 |
else: |
|
1364 |
values = '' |
|
1365 |
else: |
|
1366 |
values = [] |
|
1367 |
signed = (field_type in [6, 8, 9, 10]) |
|
1368 |
||
1369 |
# XXX investigate |
|
1370 |
# some entries get too big to handle could be malformed |
|
1371 |
# file or problem with self.s2n |
|
1372 |
if count < 1000: |
|
1373 |
for dummy in range(count): |
|
1374 |
if field_type in (5, 10): |
|
1375 |
# a ratio |
|
1376 |
value = Ratio(self.s2n(offset, 4, signed), |
|
1377 |
self.s2n(offset + 4, 4, signed)) |
|
1378 |
else: |
|
1379 |
value = self.s2n(offset, typelen, signed) |
|
1380 |
values.append(value) |
|
1381 |
offset = offset + typelen |
|
1382 |
# The test above causes problems with tags that are |
|
1383 |
# supposed to have long values! Fix up one important case. |
|
1384 |
elif tag_name == 'MakerNote' : |
|
1385 |
for dummy in range(count): |
|
1386 |
value = self.s2n(offset, typelen, signed) |
|
1387 |
values.append(value) |
|
1388 |
offset = offset + typelen |
|
1389 |
#else : |
|
1390 |
# print "Warning: dropping large tag:", tag, tag_name |
|
1391 |
||
1392 |
# now 'values' is either a string or an array |
|
1393 |
if count == 1 and field_type != 2: |
|
1394 |
printable=str(values[0]) |
|
1395 |
elif count > 50 and len(values) > 20 : |
|
1396 |
printable=str( values[0:20] )[0:-1] + ", ... ]" |
|
1397 |
else: |
|
1398 |
printable=str(values) |
|
1399 |
||
1400 |
# compute printable version of values |
|
1401 |
if tag_entry: |
|
1402 |
if len(tag_entry) != 1: |
|
1403 |
# optional 2nd tag element is present |
|
1404 |
if callable(tag_entry[1]): |
|
1405 |
# call mapping function |
|
1406 |
printable = tag_entry[1](values) |
|
1407 |
else: |
|
1408 |
printable = '' |
|
1409 |
for i in values: |
|
1410 |
# use lookup table for this tag |
|
1411 |
printable += tag_entry[1].get(i, repr(i)) |
|
1412 |
||
1413 |
self.tags[ifd_name + ' ' + tag_name] = IFD_Tag(printable, tag, |
|
1414 |
field_type, |
|
1415 |
values, field_offset, |
|
1416 |
count * typelen) |
|
1417 |
if self.debug: |
|
1418 |
print ' debug: %s: %s' % (tag_name, |
|
1419 |
repr(self.tags[ifd_name + ' ' + tag_name])) |
|
1420 |
||
1421 |
if tag_name == stop_tag: |
|
1422 |
break |
|
1423 |
||
1424 |
# extract uncompressed TIFF thumbnail (like pulling teeth) |
|
1425 |
# we take advantage of the pre-existing layout in the thumbnail IFD as |
|
1426 |
# much as possible |
|
1427 |
def extract_TIFF_thumbnail(self, thumb_ifd): |
|
1428 |
entries = self.s2n(thumb_ifd, 2) |
|
1429 |
# this is header plus offset to IFD ... |
|
1430 |
if self.endian == 'M': |
|
1431 |
tiff = 'MM\x00*\x00\x00\x00\x08' |
|
1432 |
else: |
|
1433 |
tiff = 'II*\x00\x08\x00\x00\x00' |
|
1434 |
# ... plus thumbnail IFD data plus a null "next IFD" pointer |
|
98
d7d98c4479ab
modify EXIF.py to use mmap in the hope of slightly better improvements with less syscalls
Tero Marttila <terom@fixme.fi>
parents:
54
diff
changeset
|
1435 |
tiff += self.pread(thumb_ifd, entries*12+2)+'\x00\x00\x00\x00' |
54 | 1436 |
|
1437 |
# fix up large value offset pointers into data area |
|
1438 |
for i in range(entries): |
|
1439 |
entry = thumb_ifd + 2 + 12 * i |
|
1440 |
tag = self.s2n(entry, 2) |
|
1441 |
field_type = self.s2n(entry+2, 2) |
|
1442 |
typelen = FIELD_TYPES[field_type][0] |
|
1443 |
count = self.s2n(entry+4, 4) |
|
1444 |
oldoff = self.s2n(entry+8, 4) |
|
1445 |
# start of the 4-byte pointer area in entry |
|
1446 |
ptr = i * 12 + 18 |
|
1447 |
# remember strip offsets location |
|
1448 |
if tag == 0x0111: |
|
1449 |
strip_off = ptr |
|
1450 |
strip_len = count * typelen |
|
1451 |
# is it in the data area? |
|
1452 |
if count * typelen > 4: |
|
1453 |
# update offset pointer (nasty "strings are immutable" crap) |
|
1454 |
# should be able to say "tiff[ptr:ptr+4]=newoff" |
|
1455 |
newoff = len(tiff) |
|
1456 |
tiff = tiff[:ptr] + self.n2s(newoff, 4) + tiff[ptr+4:] |
|
1457 |
# remember strip offsets location |
|
1458 |
if tag == 0x0111: |
|
1459 |
strip_off = newoff |
|
1460 |
strip_len = 4 |
|
1461 |
# get original data and store it |
|
98
d7d98c4479ab
modify EXIF.py to use mmap in the hope of slightly better improvements with less syscalls
Tero Marttila <terom@fixme.fi>
parents:
54
diff
changeset
|
1462 |
tiff += self.pread(oldoff, count * typelen) |
54 | 1463 |
|
1464 |
# add pixel strips and update strip offset info |
|
1465 |
old_offsets = self.tags['Thumbnail StripOffsets'].values |
|
1466 |
old_counts = self.tags['Thumbnail StripByteCounts'].values |
|
1467 |
for i in range(len(old_offsets)): |
|
1468 |
# update offset pointer (more nasty "strings are immutable" crap) |
|
1469 |
offset = self.n2s(len(tiff), strip_len) |
|
1470 |
tiff = tiff[:strip_off] + offset + tiff[strip_off + strip_len:] |
|
1471 |
strip_off += strip_len |
|
1472 |
# add pixel strip to end |
|
98
d7d98c4479ab
modify EXIF.py to use mmap in the hope of slightly better improvements with less syscalls
Tero Marttila <terom@fixme.fi>
parents:
54
diff
changeset
|
1473 |
tiff += self.pread(old_offsets[i], old_counts[i]) |
54 | 1474 |
|
1475 |
self.tags['TIFFThumbnail'] = tiff |
|
1476 |
||
1477 |
# decode all the camera-specific MakerNote formats |
|
1478 |
||
1479 |
# Note is the data that comprises this MakerNote. The MakerNote will |
|
1480 |
# likely have pointers in it that point to other parts of the file. We'll |
|
1481 |
# use self.offset as the starting point for most of those pointers, since |
|
1482 |
# they are relative to the beginning of the file. |
|
1483 |
# |
|
1484 |
# If the MakerNote is in a newer format, it may use relative addressing |
|
1485 |
# within the MakerNote. In that case we'll use relative addresses for the |
|
1486 |
# pointers. |
|
1487 |
# |
|
1488 |
# As an aside: it's not just to be annoying that the manufacturers use |
|
1489 |
# relative offsets. It's so that if the makernote has to be moved by the |
|
1490 |
# picture software all of the offsets don't have to be adjusted. Overall, |
|
1491 |
# this is probably the right strategy for makernotes, though the spec is |
|
1492 |
# ambiguous. (The spec does not appear to imagine that makernotes would |
|
1493 |
# follow EXIF format internally. Once they did, it's ambiguous whether |
|
1494 |
# the offsets should be from the header at the start of all the EXIF info, |
|
1495 |
# or from the header at the start of the makernote.) |
|
1496 |
def decode_maker_note(self): |
|
1497 |
note = self.tags['EXIF MakerNote'] |
|
1498 |
||
1499 |
# Some apps use MakerNote tags but do not use a format for which we |
|
1500 |
# have a description, so just do a raw dump for these. |
|
1501 |
#if self.tags.has_key('Image Make'): |
|
1502 |
make = self.tags['Image Make'].printable |
|
1503 |
#else: |
|
1504 |
# make = '' |
|
1505 |
||
1506 |
# model = self.tags['Image Model'].printable # unused |
|
1507 |
||
1508 |
# Nikon |
|
1509 |
# The maker note usually starts with the word Nikon, followed by the |
|
1510 |
# type of the makernote (1 or 2, as a short). If the word Nikon is |
|
1511 |
# not at the start of the makernote, it's probably type 2, since some |
|
1512 |
# cameras work that way. |
|
1513 |
if 'NIKON' in make: |
|
1514 |
if note.values[0:7] == [78, 105, 107, 111, 110, 0, 1]: |
|
1515 |
if self.debug: |
|
1516 |
print "Looks like a type 1 Nikon MakerNote." |
|
1517 |
self.dump_IFD(note.field_offset+8, 'MakerNote', |
|
1518 |
dict=MAKERNOTE_NIKON_OLDER_TAGS) |
|
1519 |
elif note.values[0:7] == [78, 105, 107, 111, 110, 0, 2]: |
|
1520 |
if self.debug: |
|
1521 |
print "Looks like a labeled type 2 Nikon MakerNote" |
|
1522 |
if note.values[12:14] != [0, 42] and note.values[12:14] != [42L, 0L]: |
|
1523 |
raise ValueError("Missing marker tag '42' in MakerNote.") |
|
1524 |
# skip the Makernote label and the TIFF header |
|
1525 |
self.dump_IFD(note.field_offset+10+8, 'MakerNote', |
|
1526 |
dict=MAKERNOTE_NIKON_NEWER_TAGS, relative=1) |
|
1527 |
else: |
|
1528 |
# E99x or D1 |
|
1529 |
if self.debug: |
|
1530 |
print "Looks like an unlabeled type 2 Nikon MakerNote" |
|
1531 |
self.dump_IFD(note.field_offset, 'MakerNote', |
|
1532 |
dict=MAKERNOTE_NIKON_NEWER_TAGS) |
|
1533 |
return |
|
1534 |
||
1535 |
# Olympus |
|
1536 |
if make.startswith('OLYMPUS'): |
|
1537 |
self.dump_IFD(note.field_offset+8, 'MakerNote', |
|
1538 |
dict=MAKERNOTE_OLYMPUS_TAGS) |
|
1539 |
# XXX TODO |
|
1540 |
#for i in (('MakerNote Tag 0x2020', MAKERNOTE_OLYMPUS_TAG_0x2020),): |
|
1541 |
# self.decode_olympus_tag(self.tags[i[0]].values, i[1]) |
|
1542 |
#return |
|
1543 |
||
1544 |
# Casio |
|
1545 |
if 'CASIO' in make or 'Casio' in make: |
|
1546 |
self.dump_IFD(note.field_offset, 'MakerNote', |
|
1547 |
dict=MAKERNOTE_CASIO_TAGS) |
|
1548 |
return |
|
1549 |
||
1550 |
# Fujifilm |
|
1551 |
if make == 'FUJIFILM': |
|
1552 |
# bug: everything else is "Motorola" endian, but the MakerNote |
|
1553 |
# is "Intel" endian |
|
1554 |
endian = self.endian |
|
1555 |
self.endian = 'I' |
|
1556 |
# bug: IFD offsets are from beginning of MakerNote, not |
|
1557 |
# beginning of file header |
|
1558 |
offset = self.offset |
|
1559 |
self.offset += note.field_offset |
|
1560 |
# process note with bogus values (note is actually at offset 12) |
|
1561 |
self.dump_IFD(12, 'MakerNote', dict=MAKERNOTE_FUJIFILM_TAGS) |
|
1562 |
# reset to correct values |
|
1563 |
self.endian = endian |
|
1564 |
self.offset = offset |
|
1565 |
return |
|
1566 |
||
1567 |
# Canon |
|
1568 |
if make == 'Canon': |
|
1569 |
self.dump_IFD(note.field_offset, 'MakerNote', |
|
1570 |
dict=MAKERNOTE_CANON_TAGS) |
|
1571 |
for i in (('MakerNote Tag 0x0001', MAKERNOTE_CANON_TAG_0x001), |
|
1572 |
('MakerNote Tag 0x0004', MAKERNOTE_CANON_TAG_0x004)): |
|
1573 |
self.canon_decode_tag(self.tags[i[0]].values, i[1]) |
|
1574 |
return |
|
1575 |
||
1576 |
||
1577 |
# XXX TODO decode Olympus MakerNote tag based on offset within tag |
|
1578 |
def olympus_decode_tag(self, value, dict): |
|
1579 |
pass |
|
1580 |
||
1581 |
# decode Canon MakerNote tag based on offset within tag |
|
1582 |
# see http://www.burren.cx/david/canon.html by David Burren |
|
1583 |
def canon_decode_tag(self, value, dict): |
|
1584 |
for i in range(1, len(value)): |
|
1585 |
x=dict.get(i, ('Unknown', )) |
|
1586 |
if self.debug: |
|
1587 |
print i, x |
|
1588 |
name=x[0] |
|
1589 |
if len(x) > 1: |
|
1590 |
val=x[1].get(value[i], 'Unknown') |
|
1591 |
else: |
|
1592 |
val=value[i] |
|
1593 |
# it's not a real IFD Tag but we fake one to make everybody |
|
1594 |
# happy. this will have a "proprietary" type |
|
1595 |
self.tags['MakerNote '+name]=IFD_Tag(str(val), None, 0, None, |
|
1596 |
None, None) |
|
1597 |
||
1598 |
# process an image file (expects an open file object) |
|
1599 |
# this is the function that has to deal with all the arbitrary nasty bits |
|
1600 |
# of the EXIF standard |
|
1601 |
def process_file(f, stop_tag='UNDEF', details=True, strict=False, debug=False): |
|
1602 |
# yah it's cheesy... |
|
1603 |
global detailed |
|
1604 |
detailed = details |
|
1605 |
||
1606 |
# by default do not fake an EXIF beginning |
|
1607 |
fake_exif = 0 |
|
1608 |
||
1609 |
# determine whether it's a JPEG or TIFF |
|
1610 |
data = f.read(12) |
|
1611 |
if data[0:4] in ['II*\x00', 'MM\x00*']: |
|
1612 |
# it's a TIFF file |
|
1613 |
f.seek(0) |
|
1614 |
endian = f.read(1) |
|
1615 |
f.read(1) |
|
1616 |
offset = 0 |
|
1617 |
elif data[0:2] == '\xFF\xD8': |
|
1618 |
# it's a JPEG file |
|
1619 |
while data[2] == '\xFF' and data[6:10] in ('JFIF', 'JFXX', 'OLYM', 'Phot'): |
|
1620 |
length = ord(data[4])*256+ord(data[5]) |
|
1621 |
f.read(length-8) |
|
1622 |
# fake an EXIF beginning of file |
|
1623 |
data = '\xFF\x00'+f.read(10) |
|
1624 |
fake_exif = 1 |
|
1625 |
if data[2] == '\xFF' and data[6:10] == 'Exif': |
|
1626 |
# detected EXIF header |
|
1627 |
offset = f.tell() |
|
1628 |
endian = f.read(1) |
|
1629 |
else: |
|
1630 |
# no EXIF information |
|
1631 |
return {} |
|
1632 |
else: |
|
1633 |
# file format not recognized |
|
1634 |
return {} |
|
1635 |
||
1636 |
# deal with the EXIF info we found |
|
1637 |
if debug: |
|
1638 |
print {'I': 'Intel', 'M': 'Motorola'}[endian], 'format' |
|
1639 |
hdr = EXIF_header(f, endian, offset, fake_exif, strict, debug) |
|
1640 |
ifd_list = hdr.list_IFDs() |
|
1641 |
ctr = 0 |
|
1642 |
for i in ifd_list: |
|
1643 |
if ctr == 0: |
|
1644 |
IFD_name = 'Image' |
|
1645 |
elif ctr == 1: |
|
1646 |
IFD_name = 'Thumbnail' |
|
1647 |
thumb_ifd = i |
|
1648 |
else: |
|
1649 |
IFD_name = 'IFD %d' % ctr |
|
1650 |
if debug: |
|
1651 |
print ' IFD %d (%s) at offset %d:' % (ctr, IFD_name, i) |
|
1652 |
hdr.dump_IFD(i, IFD_name, stop_tag=stop_tag) |
|
1653 |
# EXIF IFD |
|
1654 |
exif_off = hdr.tags.get(IFD_name+' ExifOffset') |
|
1655 |
if exif_off: |
|
1656 |
if debug: |
|
1657 |
print ' EXIF SubIFD at offset %d:' % exif_off.values[0] |
|
1658 |
hdr.dump_IFD(exif_off.values[0], 'EXIF', stop_tag=stop_tag) |
|
1659 |
# Interoperability IFD contained in EXIF IFD |
|
1660 |
intr_off = hdr.tags.get('EXIF SubIFD InteroperabilityOffset') |
|
1661 |
if intr_off: |
|
1662 |
if debug: |
|
1663 |
print ' EXIF Interoperability SubSubIFD at offset %d:' \ |
|
1664 |
% intr_off.values[0] |
|
1665 |
hdr.dump_IFD(intr_off.values[0], 'EXIF Interoperability', |
|
1666 |
dict=INTR_TAGS, stop_tag=stop_tag) |
|
1667 |
# GPS IFD |
|
1668 |
gps_off = hdr.tags.get(IFD_name+' GPSInfo') |
|
1669 |
if gps_off: |
|
1670 |
if debug: |
|
1671 |
print ' GPS SubIFD at offset %d:' % gps_off.values[0] |
|
1672 |
hdr.dump_IFD(gps_off.values[0], 'GPS', dict=GPS_TAGS, stop_tag=stop_tag) |
|
1673 |
ctr += 1 |
|
1674 |
||
1675 |
# extract uncompressed TIFF thumbnail |
|
1676 |
thumb = hdr.tags.get('Thumbnail Compression') |
|
1677 |
if thumb and thumb.printable == 'Uncompressed TIFF': |
|
1678 |
hdr.extract_TIFF_thumbnail(thumb_ifd) |
|
1679 |
||
1680 |
# JPEG thumbnail (thankfully the JPEG data is stored as a unit) |
|
1681 |
thumb_off = hdr.tags.get('Thumbnail JPEGInterchangeFormat') |
|
1682 |
if thumb_off: |
|
1683 |
f.seek(offset+thumb_off.values[0]) |
|
1684 |
size = hdr.tags['Thumbnail JPEGInterchangeFormatLength'].values[0] |
|
1685 |
hdr.tags['JPEGThumbnail'] = f.read(size) |
|
1686 |
||
1687 |
# deal with MakerNote contained in EXIF IFD |
|
1688 |
# (Some apps use MakerNote tags but do not use a format for which we |
|
1689 |
# have a description, do not process these). |
|
1690 |
if 'EXIF MakerNote' in hdr.tags and 'Image Make' in hdr.tags and detailed: |
|
1691 |
hdr.decode_maker_note() |
|
1692 |
||
1693 |
# Sometimes in a TIFF file, a JPEG thumbnail is hidden in the MakerNote |
|
1694 |
# since it's not allowed in a uncompressed TIFF IFD |
|
1695 |
if 'JPEGThumbnail' not in hdr.tags: |
|
1696 |
thumb_off=hdr.tags.get('MakerNote JPEGThumbnail') |
|
1697 |
if thumb_off: |
|
1698 |
f.seek(offset+thumb_off.values[0]) |
|
1699 |
hdr.tags['JPEGThumbnail']=file.read(thumb_off.field_length) |
|
1700 |
||
1701 |
return hdr.tags |
|
1702 |
||
1703 |
||
1704 |
# show command line usage |
|
1705 |
def usage(exit_status): |
|
1706 |
msg = 'Usage: EXIF.py [OPTIONS] file1 [file2 ...]\n' |
|
1707 |
msg += 'Extract EXIF information from digital camera image files.\n\nOptions:\n' |
|
1708 |
msg += '-q --quick Do not process MakerNotes.\n' |
|
1709 |
msg += '-t TAG --stop-tag TAG Stop processing when this tag is retrieved.\n' |
|
1710 |
msg += '-s --strict Run in strict mode (stop on errors).\n' |
|
1711 |
msg += '-d --debug Run in debug mode (display extra info).\n' |
|
1712 |
print msg |
|
1713 |
sys.exit(exit_status) |
|
1714 |
||
1715 |
# library test/debug function (dump given files) |
|
1716 |
if __name__ == '__main__': |
|
1717 |
import sys |
|
1718 |
import getopt |
|
1719 |
||
1720 |
# parse command line options/arguments |
|
1721 |
try: |
|
1722 |
opts, args = getopt.getopt(sys.argv[1:], "hqsdt:v", ["help", "quick", "strict", "debug", "stop-tag="]) |
|
1723 |
except getopt.GetoptError: |
|
1724 |
usage(2) |
|
1725 |
if args == []: |
|
1726 |
usage(2) |
|
1727 |
detailed = True |
|
1728 |
stop_tag = 'UNDEF' |
|
1729 |
debug = False |
|
1730 |
strict = False |
|
1731 |
for o, a in opts: |
|
1732 |
if o in ("-h", "--help"): |
|
1733 |
usage(0) |
|
1734 |
if o in ("-q", "--quick"): |
|
1735 |
detailed = False |
|
1736 |
if o in ("-t", "--stop-tag"): |
|
1737 |
stop_tag = a |
|
1738 |
if o in ("-s", "--strict"): |
|
1739 |
strict = True |
|
1740 |
if o in ("-d", "--debug"): |
|
1741 |
debug = True |
|
1742 |
||
1743 |
# output info for each file |
|
1744 |
for filename in args: |
|
1745 |
try: |
|
1746 |
file=open(filename, 'rb') |
|
1747 |
except: |
|
1748 |
print "'%s' is unreadable\n"%filename |
|
1749 |
continue |
|
1750 |
print filename + ':' |
|
1751 |
# get the tags |
|
1752 |
data = process_file(file, stop_tag=stop_tag, details=detailed, strict=strict, debug=debug) |
|
1753 |
if not data: |
|
1754 |
print 'No EXIF information found' |
|
1755 |
continue |
|
1756 |
||
1757 |
x=data.keys() |
|
1758 |
x.sort() |
|
1759 |
for i in x: |
|
1760 |
if i in ('JPEGThumbnail', 'TIFFThumbnail'): |
|
1761 |
continue |
|
1762 |
try: |
|
1763 |
print ' %s (%s): %s' % \ |
|
1764 |
(i, FIELD_TYPES[data[i].field_type][2], data[i].printable) |
|
1765 |
except: |
|
1766 |
print 'error', i, '"', data[i], '"' |
|
1767 |
if 'JPEGThumbnail' in data: |
|
1768 |
print 'File has JPEG thumbnail' |
|
1769 |
||
1770 |