Package: gstreamer1.0-plugins-base-apps

"gstreamer1.0-plugins-base-apps" package binaries on Debian:

/usr/bin/gst-device-monitor-1.0 /usr/bin/gst-discoverer-1.0 /usr/bin/gst-play-1.0

You may install this package on Debian with apt-get install gstreamer1.0-plugins-base-apps