Here is a list of all files with brief descriptions:

api.h
NDR651_duc_sink_mk2.h
NDR651_duc_sink_mk2_impl.h
ndr651_sink.h
ndr651_sink_impl.h
NDR651_sync_sink.h
NDR651_sync_sink_impl.h
packet_types.h
single_pole_iir.h
single_pole_iir_filter_ff.h
single_pole_iir_filter_ff_impl.h
snapshot_fft_vector_source.h
snapshot_fft_vector_source_impl.h
snapshot_source_c.h
snapshot_source_c_impl.h
snapshot_vector_source.h
snapshot_vector_source_impl.h
snapshot_vector_source_mk2.h
snapshot_vector_source_mk2_impl.h
vector_keep_m_in_n.h
vector_keep_m_in_n_impl.h
vector_mag_squared_log10_cf.h
vector_mag_squared_log10_cf_impl.h
vector_nlog10_ff.h
vector_nlog10_ff_impl.h
vita_iq_source.h
vita_iq_source_2.h
vita_iq_source_2_impl.h
vita_iq_source_impl.h
vita_iq_source_mk3.h
vita_iq_source_mk3_impl.h
vita_multifile_iq_source.h
vita_multifile_iq_source_impl.h
vita_udp_rx.h
vita_udp_rx_impl.h