#!/bin/sh

# Video2GeoEXIF
# Converts a video into a serie of JPEG images with timestamp (must use JOSM)
# Author: PanierAvide

echo "Video2GeoEXIF"

if [ $# == "2" ]; then
	if [ -r $1 ]; then
		# Video to images (r = fps, must be changed depending of your camera)
		ffmpeg -i $1 -r 1.265 img-%8d.jpg

		# Create minimal EXIF
		jhead -mkexif *.jpg

		# Convert date to UNIX timestamp
		date_unix=`date -u --date="$2" +%s`
		seconds=0

		# Change images timestamp (1 image per second)
		for i in `ls *.jpg`; do
			time=$(($date_unix+$seconds))
			ts=`date -u --date="@$time" +"%Y:%m:%d-%T"` # timestamp -> date
			jhead -ts$ts $i # Add timestamp on the image
			seconds=$(($seconds+1))
		done

		# Copy date from EXIF
		jhead -ft *.jpg

		# Edit images in JOSM
		echo "Go to JOSM"

		read key

		# Set orientation to default value
		exiftool -Orientation=1 -overwrite_original -n *.jpg
	else
		echo "The video isn't readable"
	fi
else
	echo "Usage: video2geoexif video.mp4 start_date"
	echo "Date format: YYYY-MM-DD HH:MM:SS"
fi