Here is our first Timelapse video. It was created at today’s HackJam.
We followed the instructions via this link http://www.raspberrypi-spy.co.uk/2013/05/creating-timelapse-videos-with-the-raspberry-pi-camera/
We used the command to take a photo every 10 seconds (10000 milliseconds) for a 5 minute period (300000 milliseconds) resulting in a sequence of 30 images. This was the command we typed into LX Terminal on our Raspberry Pi.
raspistill -o myimage_%04d.jpg -tl 10000 -t 300000
We then had to combine the images into a video. We used “avconv”. You can install this useful library with the following command:-
sudo apt-get -y install libav-tools
To construct the video file from our image sequence we used the command below. We cropped the images and create a standard 1280×720 resolution. Please note this must be entered as a single line command:-
avconv -r 10 -i timelapse_%04d.jpg -r 10 -vcodec libx264 -crf 20 -g 15 -vf crop=2592:1458,scale=1280:720 timelapse.mp4
The video was quite fast so I used iMovie just to slow it down a little, I also added the movie again but in reverse.
We are planning to do more Timelapse video’s in the near future.