timelapse.sh

echo "Creating new motion JPEG..."
echo > timelapse.mjpeg

echo "Concatenating JPEG stream..."
for i in $( find /path/to/your/jpegs -type f -name '*.jpg' | sort ); do
  cat $i >> timelapse.mjpeg
done

echo "Running first FFMPEG pass..."
ffmpeg -y -i timelapse.mjpeg -an \
  -s 320x240 -pass 1 -qscale 4 \
  -f flv timelapse.flv \
  -f mp4 -vcodec h264 timelapse.mp4

echo "Running second FFMPEG pass..."
ffmpeg -y -i timelapse.mjpeg -an \
  -s 320x240 -pass 2 -qscale 4 \
  -f flv timelapse.flv \
  -f mp4 -vcodec h264 timelapse.mp4

echo "Removing FFMPEG multi-pass logs..."
rm ffmpeg*.log

echo "Removing motion JPEG..."
rm timelapse.mjpeg

echo "Done."