create-timelapse.sh

#!/bin/bash
#
# Create timelapse movies from images in the output/screen and output/isight folders
#
SOURCES=( screen isight )
# IMGSRC=isight

for src in "${SOURCES[@]}"
do

  COUNTER=0;
  rm output/$src/series/*.jpg

  for i in `find output/$src -name '*.jpg'` ;
  do
    # Write the filename to be friendly with ffmpeg's old filename input
    FILENAME=`printf '%05d.jpg' $COUNTER`
    cp $i output/$src/series/$FILENAME
    let COUNTER=COUNTER+1;
  done

  nice ffmpeg -r 24 -i output/$src/series/%5d.jpg output/videos/timelapse-$src.mov

done

timelapse.sh

#!/bin/bash
# timelapse
#
# Records a sequence of screencaptures at regular intervals on
# Mac OS X.
#
# Can also record using webcam via the imagesnap program.
#
while true; do
    timestamp=$(date '+%Y-%m-%dT%H%M%S');
    echo "Capturing screen at $timestamp."
    # For one screen:
    screencapture -t jpg -x "output/screen/screen1-$timestamp.jpg";
    # For two screens:
    # screencapture -x "screen1-$timestamp.png" "screen2-$timestamp.png";

    # If you have a webcam, you might want to capture that too.
    #echo "Capturing isight at $timestamp."
    #./imagesnap/imagesnap -q "output/isight/isight-$timestamp.jpg";
    # sleep 60;
    sleep 15;
done;