#take still images in a loop

#turn on screen
input keyevent KEYCODE_POWER

#IMAGE_CAPTURE starts the camera, but might ask for photo confirmation after each shot
am start -a android.media.action.IMAGE_CAPTURE
input keyevent KEYCODE_FOCUS #not really needed
input keyevent KEYCODE_CAMERA
while [ 1 ];do input keyevent KEYCODE_CAMERA;sleep 5;done &

#Video
am start -a android.media.action.VIDEO_CAPTURE

#find screen backlight value (root needed to change value)
busybox find / -name "backlight" #or busybox find / -name "brightness"
cat /sys/class/backlight #/sys/devices/fd900000.qcom,mdss_mdp/qcom,mdss_fb_primary.155/leds/lcd-backlight/brightness
echo 0 > /sys/class/backlight
#press power button a few times to turn screen back on

#turn shutter sound off
mount -o remount,rw /system #remount system as read/write
cd /system/media/audio/ui/
mv camera_click.ogg camera_click.ogg.old #remove sound
mv camera_click.ogg.old camera_click.ogg #reload sound