OS X El Capitan: The Missing Manual

QuickTime Player

A QuickTime movie is a video file you can play from your hard drive, a CD or DVD, or the Internet. Like any movie, it creates the illusion of motion by flashing many individual frames (photos) per second before your eyes, while also playing a synchronized soundtrack.

The cornerstone of OS X’s built-in movie-playback software is QuickTime Player, which sits in your Applications folder. Despite its name, QuickTime Player also lets you edit movies and even record new ones, either using your Mac’s built-in camera or by recording screen activity. Finally, when everything looks good, you can post your masterpiece to YouTube, Facebook, Vimeo, or another online site.

You can open a movie file by double-clicking it. When QuickTime Player first opens, you get a very cool, borderless playback window. Just hit the space bar to play the movie.

There’s a control toolbar at the bottom of the window (Figure 14-3), but it fades away after a few seconds—or immediately, if you move the cursor out of the frame. The toolbar reappears anytime your mouse moves back into the movie frame. These are the controls:

• Rotate or flip. The Edit menu contains commands for Rotate Right, Rotate Left, Flip Horizontal, and Flip Vertical. Those commands can be handy when a movie turns out to be flipped or rotated—or when you want to flip or rotate it for creative purposes.

• Volume slider (…). Click in the slider, ...