def get_datetime_of_image(img_path: Path) -> datetime:
meta = ImageMetadata(str(img_path))
meta.read()
return meta.get("Exif.Image.DateTime").value
def read_exif(self, input_temp_file):
fields = [
'ImageSize',
'ProfileDescription',
'ColorType',
'FileType',
'Transparency'
]
fields += self.context.config.EXIF_FIELDS_TO_KEEP
command = [
'-s',
'-s',
]
command += ['-{0}'.format(i) for i in fields]
# T172556 We read EXIF Orientation with pyexiv2 because exiftool is
# unreliable for that field (overzealous in the way it interprets the field).
# We can't replace all use of exiftool with pyexiv2 because ICC profile
# support was only introduced in exiv2 0.26 (not available on Jessie yet)
# and it can only extract the ICC profile, not get its name/description upfront.
# Which would make the sRGB replacement more difficult (it's unclear how many
# variations of the binary content for that family of profiles there are).
metadata = ImageMetadata(input_temp_file.name)
try:
# T178072 pyexviv2 writes to stderr even if the exception is caught
logging.disable(logging.ERROR)
metadata.read()
logging.disable(logging.NOTSET)
if 'Exif.Image.Orientation' in metadata.exif_keys:
# Distinctive key name to avoid colliding with EXIF_FIELDS_TO_KEEP
self.exif['Pyexiv2Orientation'] = metadata.get('Exif.Image.Orientation').value
except IOError:
logging.disable(logging.NOTSET)
self.debug('[IM] Could not read EXIF with pyexiv2')
stdout = Engine.exiftool.command(
context=self.context,
pre=command,
input_temp_file=input_temp_file
)
for s in stdout.splitlines():
values = s.split(': ', 1)
self.exif[values[0]] = values[1]
self.debug('[IM] EXIF: %r' % self.exif)
if 'ImageSize' in self.exif:
self.internal_size = map(int, self.exif['ImageSize'].split('x'))
else:
# Have not been able to find a test file where that EXIF field comes up unpopulated
self.internal_size = (1, 1) # pragma: no cover
# If we encounter any non-sRGB ICC profile, we save it to re-apply
# it to the result
if 'ProfileDescription' not in self.exif:
self.debug('[IM] File has no ICC profile')
return
expected_profile = self.context.config.EXIF_TINYRGB_ICC_REPLACE.lower()
profile = self.exif['ProfileDescription'].lower()
if profile == expected_profile:
self.icc_profile_path = self.context.config.EXIF_TINYRGB_PATH
self.debug('[IM] File has sRGB profile')
return
self.debug('[IM] File has non-sRGB profile')
command = [
'-icc_profile',
'-b',
'-m',
]
self.icc_profile_saved = Engine.exiftool.command(
context=self.context,
pre=command,
input_temp_file=input_temp_file
)
