Quicktime screen recorder! Then count the frames with ffmpeg. https://superuser.com/questions/542989/getting-the-video-frame-number-in-vlc https://superuser.co

Quicktime screen recorder! Then count the frames with ffmpeg. https://superuser.com/questions/542989/getting-the-video-frame-number-in-vlc https://superuser.com/questions/542989/getting-the-video-fra...