  The GstLAL library, derived from Gstreamer and the LIGO Algorithm Library,
supports a stream-based approach to gravitational-wave data processing.
Although GstLAL was primarily designed to search for gravitational-wave
signatures of merging black holes and neutron stars, it has also contributed to
other gravitational-wave searches, data calibration, and
detector-characterization efforts. GstLAL has played an integral role in all of
the LIGO-Virgo collaboration detections, and its low-latency configuration has
enabled rapid electromagnetic follow-up for dozens of compact binary
candidates.
