설치
$ brew install gstreamer gst-plugins-base gst-plugins-good
테스트 명령
$ gst-launch-1.0 videotestsrc ! videoconvert ! autovideosink
$ brew install gstreamer gst-plugins-base gst-plugins-good
$ gst-launch-1.0 videotestsrc ! videoconvert ! autovideosink