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I just upgraded to macOS Mojave on Macbook Air. I press command + shift + 5 on keyboard, it prompts a window where I select part of screen and then I begin recording my screen. The video quality is good and even the default microphone works well.

However, it is a little mysterious to me what program it is using for this. In the past, it would use QuickTime. However, I do not see QuickTime or any menu bar visible when this screen sharing utility launches. Also, after I save, and open it, it suggests to open in Quicktime.

Is it using QuickTime behind the scenes, albeit without a menu bar?

  • when you play it who does it – Ruskes Oct 29 '18 at 4:32
  • @Buscar웃 it gives me a list of options and I use Quicktime. That is, after it is saved. If you have Mojave, you can see exactly what I am talking about by pressing command + shift + 5 on computer. – Donato Oct 29 '18 at 4:41
  • I do not have Mojave at this time – Ruskes Oct 29 '18 at 5:07
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If you start screen recording then open the activity monitor.
You will see a process name screencapture.
Click process info botton will see more detail.
It seems like a system level functions and use intel quick sync to encode. screencapture

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    The tool is called "Screenshot" and it is an App that is bundled with macOS and can be found in the Utilities folder. The shortcut keys are set by default to launch the App. – Allan Nov 2 '18 at 14:20
  • @Allan You're right, but /usr/sbin/screencapture is the background process that did the actual recording work. – maP1E bluE Nov 2 '18 at 14:27
  • They are one in the same; there's no different process and is most definitely not a "system level" (which denotes something that happens at the kernel level) process. – Allan Nov 2 '18 at 14:50

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