Tool for timelapse with PiCamera on Raspberry Pi

rpi_timelapse.py

#!/usr/bin/env python

# shoot jpg images at regular interval for timelapse (store to img/)
#
# build MPEG4 video with jpg files :
#    ffmpeg -framerate 10 -i img/image%04d.jpg -c:v libx264 -r 10 video/timelapse.mp4
#or
#    ffmpeg -framerate 2 -i img/image%04d.jpg video/timelapse2.mp4

import time
from picamera import PiCamera

camera = PiCamera()
camera.resolution = (1024, 768)

for i in range(120):
    camera.capture('img/image{0:04d}.jpg'.format(i))
    time.sleep(30)