Periodic Screenshots (every 10 seconds) on Mac OS X

make_video.md

How to browse that easily like playing a video? I guess it's not really necessary to make a movie, I can just browse by file. If I wanted to create a super-fast movie where every screencap was a frame, I could install ffmpeg and ImageMagick and use the convert utility:

brew install imagemagick
brew install ffmpeg
convert 2015-04-13/*.jpg 2015-04-13-timelapse.mpeg

Makefile

help:
	@echo "Please use \`make <target>' where <target> is one of"
	@echo "  screencap       To start recording screencaps and clean up yesterday's captures."
	@echo "  cleanyesterday  Just delete yesterday's captures."
	@echo "  captoday        Just start recording screencaps for today."

screencap:
	./remove_yesterday_recording.sh
	./start_recording.sh

cleanyesterday:
	./remove_yesterday_recording.sh

captoday:
	./start_recording.sh

remove_yesterday_recording.sh

#!/bin/bash
yesterday_folder=$(date -r $((`date +%s` - 86400)) '+%Y-%m-%d')
if [ -d $yesterday_folder ]; then
  echo "Deleting screencaps from yesterday's folder $yesterday_folder"
  rm -rf ./$yesterday_folder
else
  echo "Yesterday's folder doesn't exist, nothing to remove."
fi

start_recording.sh

#!/bin/bash
today_folder=$(date +%Y-%m-%d)
if [ ! -d $today_folder ]; then
  echo "Today's folder does not exist, creating $today_folder"
  mkdir -p $today_folder
else
  echo "Today's folder already exists."
fi

while [ 1 ]; do
  screencap_name=$(date +%Y-%m-%d-%H-%M-%S)
  screencapture -t jpg -x $today_folder/$screencap_name.jpg
  sleep 10
done