SynoVideoGPS.sh

#!/bin/bash
#set -x errexit

# SynoVideoGPS Version 0.1.2

mypass="$1"		# provide user password as first parameter to the script
dir="."			# script should be run from /volumeX/photo/ to scan the entire tree (it is not relevant where on the volume the script is located)
myuser=$USER		# always use WebAPI as currently logged in user
ds_ip="localhost"	# change to IP adress if localhost does not work

#Log into PS
login_token=$( curl -c cookies.txt "http://${ds_ip}/photo/webapi/auth.php?api=SYNO.PhotoStation.Auth&method=login&version=1&username=$myuser&password=$mypass" 2>&1 )
if [[ ! "$login_token" =~ .*sid.* ]]; then
	echo "Login Error."
	exit 1
fi
echo "Login successful. Cookie created..."

#Check if community version of ffmpeg installed
ffmpeg_tool="ffmpeg"
for disk in {1..8}; do
	if test -f "/volume${disk}/@appstore/ffmpeg/bin/ffmpeg"; then
		ffmpeg_tool="/volume${disk}/@appstore/ffmpeg/bin/ffmpeg"
	fi
done


#Scan through subdirectories
counter=0
total=$( find "$dir" -print | grep -v "@eaDir" | wc -l )

find "$dir" -print0 | while IFS= read -r -d '' current_path
do

	#Do nothing for Thumbnails etc.
	if [[ $current_path = *"eaDir"* ]]; then
		continue    	
	fi

	#Prepare progress info
	((counter=counter+1))
	((progress=(counter*100/total)))

	#For all non-directories we can continue depending on file type
	echo -e "[${progress}%]\tScanning $current_path"
	file=$(basename -- "$current_path")

	#Check MOV files from iPhones
	if  [ "${file##*.}" = "MOV" ]; then
		geo_data=$( ${ffmpeg_tool} -i "${current_path}" -f ffmetadata 2>&1 | awk '/com.apple.quicktime.location.ISO6709/{print substr($2,1,length($2)-1)}' )
	
	#Check MP4 files from GoPro
	elif  [ "${file##*.}" = "MP4" ]; then
		geo_data=$( ${ffmpeg_tool} -i "${current_path}" -f ffmetadata 2>&1 | awk '/location /{print substr($3,1,length($3)-1)}' )
	else
		#Skip all other file types
		continue
	fi
	
	# Extract GPS data from ffmpeg output
	GPS_latitude=$( echo $geo_data | awk -F"+|-" '{print substr($0,index($0,$2-1),1) $2}' )
	GPS_longitude=$( echo $geo_data | awk -F"+|-" '{print substr($0,index($0,$3-1),1) $3}' )

	# URLencode GPS data
	GPS_latitude=$( echo "$GPS_latitude" | sed 's/+/%2B/g' | sed 's/-/%2D/g' | sed 's/\./%2E/g' )
	GPS_longitude=$( echo "$GPS_longitude" | sed 's/+/%2B/g' | sed 's/-/%2D/g' | sed 's/\./%2E/g' )

	#Skip if no GPS data found
	if [[ $GPS_latitude != *"%2E"* ]]; then
		continue
	fi
	if [[ $GPS_longitude != *"%2E"* ]]; then
		continue
	fi

	#Print GPS data if something is found
	echo -n " ${geo_data} "
	echo -n " ${GPS_latitude} "
	echo -n " ${GPS_longitude} "

	#Get video path (relative to /photo/) -> cut "/volumeX/photo/"
	video_path=$(dirname "${current_path}" | cut -d'/' -f 4- )
	#echo $video_path

	#Build video ID
	#video_<AlbumPathInHex>_<PhotoPathInHex>
	album_SubID=$(echo -n "${video_path}/" | od -An -t x1 | tr -d '\n ')
	video_SubID=$(echo -n "$file" | od -An -t x1 | tr -d '\n ')
	video_id=$( echo "video_${album_SubID}_${video_SubID}")

	#Save Location to video
	url="http://${ds_ip}/photo/webapi/photo.php?api=SYNO.PhotoStation.Photo&method=edit&version=1&id=${video_id}&gps_lat=${GPS_latitude}&gps_lng=${GPS_longitude}"

	edit_result_token=$( curl -b cookies.txt "$url" 2>&1)

	if [[ ${edit_result_token} != *"true"* ]]; then
		echo "Error: Could not save GPS data"
		exit 1
	fi
	echo "GPS data saved"

done

#Clean up and remove cookies.txt
rm cookies.txt