For MPEG-2 files you still need to install the QuickTime MPEG-2 Playback Component, which is not preinstalled in Lion and Mountain Lion. You don. The QuickTime framework provides the following: In macOS, QuickTime sends video playback to the Quartz Extreme. Mar 11, 2016 . In order to use MPEG Streamclip this morning on my Mac mini (El Capitan), I copied the QT MPEG2 Component from my iMac (Yosemite)
QuickTime Player can now play up to 24 channels of audio. MPEG-2 playback is available via the QuickTime MPEG-2 Playback Component, sold separately. Apr 21, 2016 MPEG -2 playback component enables QuickTime users to import and play back any MPEG-2 file. MPEG-2 does not provide the decoding.