Robot8A/mapillary_download
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use new metadata for offset localize

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Stefal 2023-09-18 22:16:07 +02:00
parent 9b3366e2a1
commit 586f5e5607
2 changed files with 22 additions and 15 deletions
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3
download.py
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@ -100,7 +100,8 @@ def write_exif(picture, img_metadata):
# 'captured_at': 1603459736644, 'geometry': {'type': 'Point', 'coordinates': [2.5174596904057, 48.777089857534]}, 'id': '485924785946693'}
with writer.Writer(picture) as image:
image.writePictureMetadata(img_metadata)
image.add_datetimeoriginal(img_metadata)
image.add_lat_lon(img_metadata)
image.add_altitude(img_metadata)
image.add_direction(img_metadata)
image.apply()

34
writer.py
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@ -109,7 +109,7 @@ class Writer():
"""
if metadata.capture_time.utcoffset() is None:
metadata.capture_time = self.localize(metadata)
metadata.capture_time = self.localize(metadata.capture_time, metadata)
# for capture time, override GPSInfo time and DatetimeOriginal
self.updated_exif["Exif.Photo.DateTimeOriginal"] = metadata.capture_time.strftime("%Y:%m:%d %H:%M:%S")
@ -127,7 +127,7 @@ class Writer():
"""
if metadata.capture_time.utcoffset() is None:
metadata.capture_time = self.localize(metadata)
metadata.capture_time = self.localize(metadata.capture_time, metadata)
# for capture time, override DatetimeOriginal and SubSecTimeOriginal
self.updated_exif["Exif.Photo.DateTimeOriginal"] = metadata.capture_time.strftime("%Y:%m:%d %H:%M:%S")
@ -157,22 +157,28 @@ class Writer():
return f"{'+' if offset_hour >= 0 else '-'}{int(abs(offset_hour)):02}:{int(remainer/60):02}"
def localize(self, metadata: PictureMetadata) -> datetime:
def localize(self, naive_dt: datetime, metadata: PictureMetadata) -> datetime:
"""
Localize a datetime in the timezone of the picture
If the picture does not contains GPS position, the datetime will not be modified.
"""
exif = self.exif
try:
lon = exif["Exif.GPSInfo.GPSLongitude"]
lon_ref = exif.get("Exif.GPSInfo.GPSLongitudeRef", "E")
lat = exif["Exif.GPSInfo.GPSLatitude"]
lat_ref = exif.get("Exif.GPSInfo.GPSLatitudeRef", "N")
except KeyError:
return metadata.capture_time # canot localize, returning same date
lon = self._from_dms(lon) * (1 if lon_ref == "E" else -1)
lat = self._from_dms(lat) * (1 if lat_ref == "N" else -1)
new_lat_lon = metadata.longitude is not None and metadata.latitude is not None
if new_lat_lon :
lon = metadata.longitude
lat = metadata.latitude
else:
exif = self.exif
try:
lon = exif["Exif.GPSInfo.GPSLongitude"]
lon_ref = exif.get("Exif.GPSInfo.GPSLongitudeRef", "E")
lat = exif["Exif.GPSInfo.GPSLatitude"]
lat_ref = exif.get("Exif.GPSInfo.GPSLatitudeRef", "N")
lon = self._from_dms(lon) * (1 if lon_ref == "E" else -1)
lat = self._from_dms(lat) * (1 if lat_ref == "N" else -1)
except KeyError:
return metadata.capture_time # canot localize, returning same date
tz_name = tz_finder.timezone_at(lng=lon, lat=lat)
if not tz_name:
@ -180,7 +186,7 @@ class Writer():
tz = pytz.timezone(tz_name)
return tz.localize(metadata.capture_time)
return tz.localize(naive_dt)
def _from_dms(self, val: str) -> float: