The La Darsena Webcam Project

# Wheel knob:
Modus P

# Lense:
Autofocus ON

# Menu settings:
Menu 1: Quality:         M normal
        Beep:            Disable
        Image review:    Off
        Red eye reduct:  Disable
        Flash control:   Disable Flash firing
Menu 3: ISO Auto         Max: 800
Menu 4: Live View Shot:  Enable
        AF Mode:         Live Mode
Menu 7: Auto power off:  Off		
Menu 8: LCD brightness:  As dark as possible
Menu 9: Custom Functions M1: 0 
                         M2: 0
                         M3: 2 On, Long exp. noise reduction

apt-get update
apt-get upgrade
apt-get install imagemagick     # image manipulation
apt-get install exiftool        # read/write exif data
apt-get install rsync           # to upload images to server
apt-get install syslog-ng       # we want a nice syslog

/root
     /images                       # temporary directory for images
     /outbox                       # files in outbox are being sent to webserver
     eos-capture.sh                # the main program
     eos-checkimage.sh             # check the focus after captured
     eos-focusreset.sh             # rest the focus manually
     eos-upload-all.sh             # upload all old images in /root/outbox
     eos-upload-latest.sh          # upload latest image in /root/outbox
	 
/etc/systemd/system/
     eos-capture.timer             # a systemd timer is much better than cron jobs
     eos-capture.service           # starts /root/eos-capture.sh
     eos-upload-all.service        # starts /root/eos-upload-all.sh
     eos-upload-latest.service     # starts /root/eos-upload-latest.sh

#!/bin/bash
#
# /root/eos-capture.sh
# Capture images from a Canon EOS 1200D

cd /root/images || exit 1

NOW=$(date +"%Y%m%d-%H%M") 
FILENAME="webcam_$NOW.jpg"
SERVERTARGET="your.webserver.tld:/yourpathtodirectory/webcam/inbox"
# iso: 0= auto, 1=ISO 100, 2=ISO 200, 3=ISO 400, 4=ISO 800
# Best is ISO auto and limit ISO to 800 in camera menu
ISO="0"
# imageformat: 0=Large-Fine, 1=Large-Normal, 2=Medium-Fine, 3=Medium-Normal
RESOLUTION=3

# capture image
# eosremoterelease=5 takes the picture immediately, without autofocussing
gphoto2 --force-overwrite --set-config imageformat=$RESOLUTION \
        --set-config iso=$ISO --set-config eosremoterelease=Immediate \
        --wait-event-and-download=40s --set-config eosremoterelease=4 \
        --filename $FILENAME >/dev/null

# if the image has been downloaded successfuly
if [ -f $FILENAME ]; then
    echo "$FILENAME captured successfully. Checking focus..."
    /root/eos-checkimage.sh $FILENAME
    # crop image to 16:9, keep resolution
    mogrify -crop 3456x1944+0+0 $FILENAME 
    # OK, now we can move the image into the outbox
    mv $FILENAME /root/outbox

# no image downloaded, something must be wrong	
else
    echo "error: Image $FILENAME not downloaded!"
    # log to system.log
    logger -p syslog.error -t [insert_php]include("webcam-project.inc");[/insert_php][$$] $FILENAME not downloaded, resetting camera
    # here you should reset the camera by switching of power for 1 second
fi

#!/bin/bash
#
# /root/eos-checkimage.sh
# Check the focus of the image and the temperature of the camera
#
cd /root/images || exit 1

if [ "" ]; then
  FILENAME=
else
  FILENAME=$(ls -1t | head -1)
fi

#echo "Checking image exif data of $FILENAME"
FOCUSDATA=$(exiftool -a -u -g1 $FILENAME | egrep 'Focus Distance|Camera Temp' \
          | sed 's/Focus Distance //g' | sed 's/Camera //g' \
          | tr '\n' ' ' | sed 's/  //g' )

IFS=' ' read -ra FIELD <<< "$FOCUSDATA"

TEMPERATURE=${FIELD[1]}
FOCUS=${FIELD[4]}

# if field 4 is "inf" then there is one field less to determine FOCUS2
if [ ${FIELD[4]} = "inf" ]; then
   FOCUS2=${FIELD[6]}
else
   FOCUS2=${FIELD[7]}
fi

# lower focus should be either 5.27
if [ "$FOCUS2" != "5.27" ]; then
  echo "Image out of focus. Performing focus reset (Lower: $FOCUS2)"
  FOCUSMSG="focus reset!"
  /root/eos-focusreset.sh
fi

# Oh yes, the EOS has a temperature sensor, perfect to switch on the cooler fan
if [ "$TEMPERATURE" -gt 42 ]; then
  echo "Cooler fan ON ($TEMPERATURE C)"
  # switch on your cooler fan here
else
  echo "Cooler fan OFF ($TEMPERATURE C)"
  # switch off your cooler fan here
fi

# log to system.log
logger -p local0.info -t eos-checkimage.sh[$$] "$FILENAME focus: $FOCUS/$FOCUS2 \
       camera: $TEMPERATURE°C ($TEMPERATUREMSG) $FOCUSMSG"

#!/bin/bash
#
# /root/eos-focusreset.sh
# Reset the focus manually. Autofocus often fails, especially in the night
#
# Choice: 0 Near 1
# Choice: 1 Near 2
# Choice: 2 Near 3
# Choice: 3 None
# Choice: 4 Far 1
# Choice: 5 Far 2
# Choice: 6 Far 3
#
# focus reset 1x6 4x1 4x4
# and
# focus reset 1x6 3x1 0x0
# are identical	

# the best manual focus setup for landscape
echo "focus reset 1x6 3x1 0x0"
gphoto2 --quiet --set-config evfmode=1 \
    --set-config viewfinder=1 --wait-event=1s \
    --set-config manualfocusdrive=6 --wait-event=1s \
    --set-config manualfocusdrive=1 --wait-event=1s \
    --set-config manualfocusdrive=1 --wait-event=1s \
    --set-config manualfocusdrive=1 --wait-event=1s \
    >/dev/null

#!/bin/bash
#
# /root/eos-upload-all.sh
# upload all abandoned images in outbox, in case we were offline

SERVERTARGET="your.webserver.tld:/yourpathtodirectory/webcam/inbox"

cd /root/outbox || exit 1

# uploading old images is not that important, so limit bandwith to minimum
rsync -Pazq --bwlimit=25 --remove-source-files . $SERVERTARGET

#!/bin/bash
#
# /root/eos-upload-all.sh
# upload latest image, it has priority before any old images

SERVERTARGET="your.webserver.tld:/yourpathtodirectory/webcam/inbox"

cd /root/outbox || exit 1

LATEST=$(ls -1t | head -1)
rsync -Pazq --bwlimit=60 --remove-source-files $LATEST $SERVERTARGET

[Unit]
Description=Take a photo every minute

[Timer]
OnCalendar=*:*:00
AccuracySec=100ms

[Install]
WantedBy=multi-user.target

[Unit]
Description=Take a photo with the EOS camera
Wants=eos-upload-latest.service
Before=eos-upload-latest.service

[Service]
Type=oneshot
ExecStart=/root/eos-capture.sh

[Unit]
Description=Upload the latest image
Wants=eos-upload-all.service
Before=eos-upload-all.service

[Service]
Type=oneshot
ExecStart=/root/eos-upload-latest.sh

[Unit]
Description=Upload all images

[Service]
Type=oneshot
ExecStart=/root/eos-upload-all.sh

/inbox                # the directory where the Raspi uploads the images
/logo                 # our logo
/tmp                  # temp dir for creatiung the time lapse movie
/img                   
    /hd               # the final hd 1920x1080 images
    /hires            # high resulution images
    /thb              # thumbnails
    /org              # the archive of the original image without label
    /movie            # the time lapse movies
image-processor.sh 	  # waits for arriving images an processes them
maketimelapse.sh      # script to create the time lapse movie

#!/bin/bash
#
# image-processor.sh
# process incoming images and add labels

# make sure we are in same directory as the script itself
cd "$(dirname "[insert_php]include("webcam-project.inc");[/insert_php]")"

# waiting for incoming file
while [ ! -f inbox/webcam_*.jpg ]; do
  sleep 5
done

for filepath in inbox/webcam_*.jpg; do

  echo processing $filepath
  filename="${filepath##*/}"  
  ext="${filename##*.}"
  filename="${filename%.*}"
  filedate="${filename:7:4}-${filename:11:2}-${filename:13:2} ${filename:16:2}:${filename:18:2}"
  datestr="${filename:13:2}/${filename:11:2}/${filename:7:4} ${filename:16:2}:${filename:18:2}"
  DAYSTR="${filename:13:2}/${filename:11:2}/${filename:7:4}"
  HOURSTR="${filename:16:2}:${filename:18:2}" 

  # if you have a weather station, please add the temperature here:
  AIRTEMP="15°C"

  # write a copyright message into the image
  exiftool -overwrite_original -title='Webcam La Darsena, Lago di Como' \
    -copyright='La Darsena, Tremezzo' $filepath

  # create thumbnail without label
  convert $filepath -resize 192x108 "img/thb/$filename.jpg" \
    && touch "img/thb/$filename.jpg" --date="$filedate"

  # create label for 1920x1080 and hires
  convert \
    -size 322x162 xc:'#0000' \
    -fill "#000A" -draw "roundrectangle 0,0,322,162,15,15" \
    -fill "#949597" -gravity northwest -draw "line 20,125 300,125" \
    -font Courier-Bold -pointsize 19 \
    -fill black     -gravity northwest -annotate +21+138 "$datestr" \
    -fill "#949597" -gravity northwest -annotate +20+137 "$datestr" \
    -fill black     -gravity northeast -annotate +37+138 "$AIRTEMP" \
    -fill "#949597" -gravity northeast -annotate +38+137 "$AIRTEMP" \
    -font Courier-Bold -pointsize 13 \
    -fill black     -gravity northeast -annotate +19+138 "°C" \
    -fill "#949597" -gravity northeast -annotate +20+137 "°C" \
    logo/logo-ladarsena-webcam-280.png -gravity northwest -geometry +20+17 -composite \
    label-1920.png 

  # resize source image to 1920x1080 and put label on it
  convert $filepath -resize 1920x1080 label-1920.png -geometry +20+20 \
    -composite "img/hd/$filename.jpg" && touch "img/hd/$filename.jpg" \
    --date="$filedate"

  # put same label on hires image
  convert $filepath label-1920.png -geometry +20+20 -composite "img/hires/$filename.jpg" \
    && touch "img/hires/$filename.jpg" --date="$filedate"

  rm label-1920.png

  # the source file we just move to org
  touch $filepath --date="$filedate"
  mv $filepath img/org

  # get filename of latest file and soft link it
  LATEST=$(ls -t img/thb/webcam_*.jpg | head -1)
  CURRENT=$(basename $LATEST)
  ln -sf $CURRENT img/thb/webcam-ladarsena.jpg
  ln -sf $CURRENT img/hd/webcam-ladarsena.jpg
  ln -sf $CURRENT img/hires/webcam-ladarsena.jpg

done

[Unit]
Description=Process incoming webcam images
After=network.target

[Service]
ExecStart=/var/www/darsenacam/webcam-processor.sh
User=root
Restart=always

[Install]
WantedBy=multi-user.target

#!/bin/bash
#
# maketimelapse.sh
# create a time lapse movie of all images from yesterday

# make sure we are in same directory as the script itself
cd "$(dirname "[insert_php]include("webcam-project.inc");[/insert_php]")"

# if script is calles without a date then use yesterdays date from 2 hours ago
 to make a clip of a certain date call "maketimelapse.sh 20151225"

if [ -z "" ]; then
 # yesterday
 CLIPDATE=`date --date='- 2 hours' +'%Y%m%d'`
 else
 CLIPDATE=
fi

# find jpg files and softlink them to tmp
find img/hd -type f  -name "webcam_$CLIPDATE*.jpg" -print | sort | \
  xargs -I {} sh -c 'ln -s "../img/hd/$(basename "")" \
  tmp/$(basename "");' - {}

# rename softlinks numeric ascending
x=1;
for i in tmp/*jpg; do 
  counter=$(printf %05d $x);
  mv $i tmp/img"$counter".jpg;
  x=$(($x+1));
done

# now create the video without audio
avconv -y -r 24 -f image2 -i tmp/img%05d.jpg -s hd720 -an input.mp4

rm -R tmp/*.jpg

filedate="${CLIPDATE:0:4}-${CLIPDATE:4:2}-${CLIPDATE:6:2} 23:59"
touch --date="${filedate}" webcam-ladarsena_$CLIPDATE.mp4
mv webcam-ladarsena_$CLIPDATE.mp4 img/movie/daily