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On OS X, read Exif tags using Cocoa's built-in functionality

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This allows for RAW files Exif reading. Fixes #234.
This commit is contained in:
Virgil Dupras
2013-11-10 12:00:16 -05:00
parent 76f45fb5a6
commit 1d9573cf6f
4 changed files with 37 additions and 7 deletions
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16
core_pe/photo.py
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@@ -49,6 +49,15 @@ class Photo(fs.File):
self._cached_orientation = 0
return self._cached_orientation
def _get_exif_timestamp(self):
try:
with self.path.open('rb') as fp:
exifdata = exif.get_fields(fp)
return exifdata['DateTimeOriginal']
except Exception:
logging.info("Couldn't read EXIF of picture: %s", self.path)
return ''
@classmethod
def can_handle(cls, path):
return fs.File.can_handle(path) and get_file_ext(path[-1]) in cls.HANDLED_EXTS
@@ -89,12 +98,7 @@ class Photo(fs.File):
if self._get_orientation() in {5, 6, 7, 8}:
self.dimensions = (self.dimensions[1], self.dimensions[0])
elif field == 'exif_timestamp':
try:
with self.path.open('rb') as fp:
exifdata = exif.get_fields(fp)
self.exif_timestamp = exifdata['DateTimeOriginal']
except Exception:
logging.info("Couldn't read EXIF of picture: %s", self.path)
self.exif_timestamp = self._get_exif_timestamp()
def get_blocks(self, block_count_per_side):
return self._plat_get_blocks(block_count_per_side, self._get_orientation())