45 lines
1.7 KiB
Python
Executable File
45 lines
1.7 KiB
Python
Executable File
# /opt/docker/dev/service_finder/backend/app/services/media_service.py
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from PIL import Image
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from PIL.ExifTags import TAGS, GPSTAGS
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import logging
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from typing import Tuple, Optional
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logger = logging.getLogger(__name__)
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class MediaService:
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@staticmethod
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def _convert_to_degrees(value) -> float:
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""" EXIF racionális koordináták konvertálása tizedes fokká. """
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try:
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d = float(value[0])
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m = float(value[1])
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s = float(value[2])
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return d + (m / 60.0) + (s / 3600.0)
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except (IndexError, ZeroDivisionError, TypeError):
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return 0.0
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@classmethod
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def extract_gps_info(cls, file_path: str) -> Optional[Tuple[float, float]]:
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""" GPS koordináták kinyerése a kép metaadataiból (Robot Hunt alapja). """
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try:
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with Image.open(file_path) as image:
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exif = image._getexif()
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if not exif: return None
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gps_info = {}
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for tag, value in exif.items():
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if TAGS.get(tag) == "GPSInfo":
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for t in value:
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gps_info[GPSTAGS.get(t, t)] = value[t]
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if 'GPSLatitude' in gps_info and 'GPSLongitude' in gps_info:
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lat = cls._convert_to_degrees(gps_info['GPSLatitude'])
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if gps_info.get('GPSLatitudeRef') != "N": lat = -lat
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lon = cls._convert_to_degrees(gps_info['GPSLongitude'])
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if gps_info.get('GPSLongitudeRef') != "E": lon = -lon
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return lat, lon
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except Exception as e:
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logger.warning(f"EXIF kiolvasási hiba ({file_path}): {e}")
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return None |