If you take a photo with your Jolla phone, the date and time is not saved in the EXIF data. I like to have these data stored in my pictures, so they can easy be renamed. I wrote a script to add the date and time to the EXIF data based on the timestamp on the filesystem.
The script does the following:
- Add the EXIF timestamp according to the filesystem timestamp
- Renames the photo like YYYY-mm-dd_HH-MM-SS
- Rotates the photo correctly
Here is the script:
set -o errexit
set -o nounset
set -o pipefail
DATEFORMAT=”%Y-%m-%d_%H-%M-%S”
print_help(){
cat << EOI Usage: fixjollaphotos file [files …] This scripts does the following for your pictures taken by your Jolla phone: * Add the EXIF timestamp according to the filesystem timestamp * Renames the photo like YYYY-mm-dd_HH-MM-SS * Rotates the photo correctly The tools exiftool and jhead must be installed. EOI } check_dependencies(){ FAIL=0 for tool in $@ do if ! hash “$tool” &> /dev/null
then
echo “The tool $tool does not exist.”
FAIL=1
fi
done
if [[ “$FAIL” == 1 ]]
then
exit 1
fi
}
fix_photo(){
echo -n Fixing “$file -> ”
touch –reference=”$file” $file.savedate
# Add dummy timestamp, so we can it modify later
exiftool -“DateTimeOriginal=1984:05:23 13:37:42” “$file” &> /dev/null
touch –reference=”$file.savedate” $file
# Set EXIF timestamp to the file timestamp
jhead -dsft “$file” &> /dev/null
rm “$file.savedate”
# Correct timezone (Timestamp of file is UTC)
TIMEOFFSET=”$(date +%:z)”
jhead -ta${TIMEOFFSET} “$file” &> /dev/null
# Rotate the photo
jhead -autorot “$file” &> /dev/null
# Rename the file, print new filename and OK
jhead -nf$DATEFORMAT “$file” | awk ‘{ ORS=””; print $NF }’
rm “${file}_original”
echo ” [OK]”
}
main(){
check_dependencies jhead exiftool
for file in “$@”
do
fix_photo “$file”
done
}
The script can also be found in my Scripts GitHub repository: fixjollaphotos.
Example:
Fixing Test/20160724_001.jpg -> Test/2016-08-25_16-37-12.jpg [OK]
After that, the photo has the correct EXIF date and time, is rotated correctly and renamed nicely. Simple, but very useful! 🙂