94 lines
2.3 KiB
Python
94 lines
2.3 KiB
Python
import subprocess
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from datetime import datetime
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_file_date_format = "%Y:%m:%d %H:%M:%S%z"
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_original_date_format = "%Y:%m:%d %H:%M:%S.%f%z"
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_date_fields = {
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'file_modification_date/time': _file_date_format,
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'file_access_date/time': _file_date_format,
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'file_inode_change_date/time': _file_date_format,
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'date/time_original': _original_date_format,
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'create_date': _original_date_format,
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'modify_date': _original_date_format,
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}
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_integer_fields = [
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'image_width',
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'image_height',
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'iso',
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'exposure_time',
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'shutter_count',
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'shutter_speed',
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'jpg_from_raw_start',
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'jpg_from_raw_length',
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'thumbnail_offset',
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'thumbnail_length',
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'sr2_sub_ifd_offset',
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'sr2_sub_ifd_length',
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'exif_image_width',
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'exif_image_height',
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'sony_exposure_time',
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'shutter_count_2',
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'sony_exposure_time_2',
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'stops_above_base_iso',
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'sony_iso',
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'iso_setting',
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'iso_auto_min',
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'iso_auto_max',
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'bits_per_sample',
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'strip_byte_counts',
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'rows_per_strip',
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'strip_offsets',
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'x_resolution',
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'y_resolution',
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'samples_per_pixel',
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'sequence_file_number',
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'digital_zoom_ratio',
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'sequence_image_number',
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'focus_position_2',
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]
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_decimal_fields = [
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'aperture',
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'megapixels',
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'light_value',
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'blue_balance',
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'sony_f_number',
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'sony_max_aperture_value',
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'sony_f_number_2',
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'f_number',
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'max_aperture_value',
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'brightness_value',
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]
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def execute_exiftool(img_file: str) -> dict:
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res = subprocess.run(
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['exiftool', img_file],
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capture_output=True,
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text=True,
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)
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if res.returncode != 0:
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raise Exception(res.stderr)
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exif_metadata = {}
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for line in res.stdout.splitlines():
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parts = line.split(':', 1)
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exif_metadata[parts[0].strip().lower().replace(' ', '_')] = parts[1].strip()
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for (date_field, date_format) in _date_fields.items():
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if date_field in exif_metadata:
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exif_metadata[date_field] = datetime.strptime(exif_metadata[date_field], date_format)
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for field in _integer_fields:
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if field in exif_metadata:
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exif_metadata[field] = int(exif_metadata[field])
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for field in _decimal_fields:
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if field in exif_metadata:
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exif_metadata[field] = float(exif_metadata[field])
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return exif_metadata
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