Interesting. I think I have that book sitting around somewhere. Archive: https://archive.today/o7uyU From the post: >>These days a smartphone is a portable film studio that fits in your pocket. The ability to not just readily view but also produce video has led to an explosion of video content easily accessible over the internet. There’s plenty of video and audio editing software available for users of all levels of sophistication. But if you have, say, a thousand video files that you need to automate reducing their volume by 50% and then extract thumbnail images, you don’t want to have to edit each of those files individually yourself. Similarly, you may want to record video, audio, or photos from a laptop’s webcam for some automated process too specialized for off-the-shelf software. Or maybe you’d just like your program to play a funny sound effect. In this chapter, you’ll learn how to control your computer’s microphone, webcam, and speaker hardware from Python and play multimedia files.