Change dependency to ExifTool

[derneuere]

We should refactor all calls of ExifRead and refactor it to direct calls of ExifTool via pyexiftool. This will allow us to read all the file formats including video formats.

[derneuere]

librephotos/api/exifreader.py

Lines 7 to 33 in b3e1e80

	def rotate_image(image):
	# If no ExifTags, no rotating needed.
	try:
	# Grab orientation value.
	image_exif = image._getexif()
	image_orientation = image_exif[274]
	# Rotate depending on orientation.
	if image_orientation == 2:
	image = image.transpose(PIL.Image.FLIP_LEFT_RIGHT)
	if image_orientation == 3:
	image = image.transpose(PIL.Image.ROTATE_180)
	if image_orientation == 4:
	image = image.transpose(PIL.Image.FLIP_TOP_BOTTOM)
	if image_orientation == 5:
	image = image.transpose(PIL.Image.FLIP_LEFT_RIGHT).transpose(
	PIL.Image.ROTATE_90)
	if image_orientation == 6:
	image = image.transpose(PIL.Image.ROTATE_270)
	if image_orientation == 7:
	image = image.transpose(PIL.Image.FLIP_TOP_BOTTOM).transpose(
	PIL.Image.ROTATE_90)
	if image_orientation == 8:
	image = image.transpose(PIL.Image.ROTATE_90)
	except:
	pass
	return image

librephotos/api/models.py

Lines 348 to 383 in b3e1e80

	def _extract_date_time_from_exif(self):
	date_format = "%Y:%m:%d %H:%M:%S"
	timestamp_from_exif = None
	with open(self.image_path, 'rb') as fimg:
	exif = exifread.process_file(fimg, details=False)
	serializable = dict(
	[key, value.printable] for key, value in exif.items())
	self.exif_json = serializable
	if 'EXIF DateTimeOriginal' in exif.keys():
	tst_str = exif['EXIF DateTimeOriginal'].values
	try:
	timestamp_from_exif = datetime.strptime(
	tst_str, date_format).replace(tzinfo=pytz.utc)
	except:
	timestamp_from_exif = None
	old_album_date = self._find_album_date()
	if(self.exif_timestamp != timestamp_from_exif):
	self.exif_timestamp = timestamp_from_exif
	if old_album_date is not None:
	old_album_date.photos.remove(self)
	old_album_date.save()
	album_date = None
	if self.exif_timestamp:
	album_date = get_or_create_album_date(date=self.exif_timestamp.date(), owner=self.owner)
	album_date.photos.add(self)
	else:
	album_date = get_or_create_album_date(date=None, owner=self.owner)
	album_date.photos.add(self)
	album_date.save()
	self.save()

librephotos/api/models.py

Lines 385 to 408 in b3e1e80

	def _extract_gps_from_exif(self):
	with open(self.image_path, 'rb') as fimg:
	exif = exifread.process_file(fimg, details=False)
	serializable = dict(
	[key, value.printable] for key, value in exif.items())
	self.exif_json = serializable
	if 'GPS GPSLongitude' in exif.keys():
	self.exif_gps_lon = util.convert_to_degrees(
	exif['GPS GPSLongitude'].values)
	# Check for correct positive/negative degrees
	if exif['GPS GPSLongitudeRef'].values != 'E':
	self.exif_gps_lon = -float(self.exif_gps_lon)
	else:
	self.exif_gps_lon = None
	if 'GPS GPSLatitude' in exif.keys():
	self.exif_gps_lat = util.convert_to_degrees(
	exif['GPS GPSLatitude'].values)
	# Check for correct positive/negative degrees
	if exif['GPS GPSLatitudeRef'].values != 'N':
	self.exif_gps_lat = -float(self.exif_gps_lat)
	else:
	self.exif_gps_lat = None
	self.save()

[derneuere]

Changed!