c-ares is a C library that performs DNS requests and name resolution asynchronously.

Some non-signal processing blocks. These functions are also in gnuradio-core. Part of the main gnuradio build.

Some channel oriented processing blocks. These functions are also in gnuradio-core. Part of the main gnuradio build.

ATSC support, gr-atsc ported to a new framework, as well as DVB-S2, DVB-T, DVB-T2 digital video broadcast standards. Part of the main gnuradio build.

Library for Fourier transform techniques used in gnuradio. Uses single precision FFT from libfftw3-single3. Part of the main gnuradio build.

Library of filter blocks used in gnuradio. Implements FIR, IIR and FFT filters, as well as Polyphase filterbank and PFB arbitrary resampler methods. Part of the main gnuradio build.