Webcam upload to Sensr using periodic FTP

linuxftpwebcam01.sh

#!/bin/bash
# Example FTP upload to Sensr from /dev/video0
# (uses ffmpeg to grab frames from webcam)
    
# Sensr FTP information
HOST=f7.sensr.net
USER=cam28
PASS=l4hqpy0ywm
    
echo Starting FtpCam ${HOST} ${USER} ${PASS}
    
# Exit by hitting ^C
trap 'echo EXIT FTPCAM; exit 0'  SIGINT SIGTERM
    
# Set image size
W=640
H=480
    
# Specify the video input dvice
DEV=/dev/video0
    
# Set size, framerate of camera
dov4l -d ${DEV} -s ${W},${H}
dov4l -d ${DEV} -f 25

for (( ; ; ))
do
    # Get two frames.  First frame is usually dirty.
    ffmpeg -f video4linux2 -s ${W}x${H} -y -r 2 -t 4 -i ${DEV} -f image2 -vcodec mjpeg "image%02d.jpg"
    if [ -f image02.jpg ]; then

        # Upload to Sensr via FTP method
        ftp -d -v -n ${HOST} <<EOF
quote user ${USER}
quote pass ${PASS}
passive
binary
put image02.jpg
quit
EOF
        rm image*.jpg
    else
        sleep 5
    fi
done

exit 0