GNU Radio 3.5.3.2 C++ API
Class List
Here are the classes, structs, unions and interfaces with brief descriptions:
[detail level 123]
oNatsc
oNatsc_sync_tag
oNboost
oNgnuradio
oNgruelInclude this header to use the message passing features
oNpmt
oNsssr
oNuhd
oCAadvarkModels the mammal Aadvark
oCatsc_bit_timing_loopATSC BitTimingLoop3This class accepts a single real input and produces two outputs, the raw symbol (float) and the tag (atsc_syminfo)
oCatsc_data_segment832 3 bit symbols. The low 3 bits in the byte hold the symbol
oCatsc_deinterleaverDeinterleave RS encoded ATSC data ( atsc_mpeg_packet_rs_encoded –> atsc_mpeg_packet_rs_encoded)input: atsc_mpeg_packet_rs_encoded; output: atsc_mpeg_packet_rs_encoded
oCatsc_depadDepad mpeg ts packets from 256 byte atsc_mpeg_packet to 188 byte charinput: atsc_mpeg_packet; output: unsigned char
oCatsc_derandomizer"dewhiten" incoming mpeg transport stream packetsinput: atsc_mpeg_packet_no_sync; output: atsc_mpeg_packet;
oCatsc_ds_to_softdsDebug glue routine (atsc_data_segment –> atsc_soft_data_segment)input: atsc_data_segment; output: atsc_soft_data_segment
oCatsc_equalizerATSC equalizer (float,syminfo –> float,syminfo)first inputs are data samples, second inputs are tags. first outputs are equalized data samples, second outputs are tags
oCatsc_field_sync_demuxATSC Field Sync Demux
oCatsc_field_sync_muxInsert ATSC Field Syncs as required (atsc_data_segment –> atsc_data_segment)input: atsc_data_segment; output: atsc_data_segment
oCatsc_fpllATSC FPLL (2nd Version)A/D –> GrFIRfilterFFF -—> GrAtscFPLL -—>
oCatsc_fs_checkerATSC field sync checker (float,syminfo –> float,syminfo)first output is delayed version of input. second output is set of tags, one-for-one with first output
oCatsc_interleaverInterleave RS encoded ATSC data ( atsc_mpeg_packet_rs_encoded –> atsc_mpeg_packet_rs_encoded)*input: atsc_mpeg_packet_rs_encoded; output: atsc_mpeg_packet_rs_encoded
oCatsc_mpeg_packet
oCatsc_mpeg_packet_no_sync
oCatsc_mpeg_packet_rs_encoded
oCatsc_padPad mpeg ts packets from 188 byte char to to 256 byte atsc_mpeg_packetinput: unsigned char; output: atsc_mpeg_packet
oCatsc_randomizer"Whiten" incoming mpeg transport stream packetsinput: atsc_mpeg_packet; output: atsc_mpeg_packet_no_sync
oCatsc_root_raised_cosine
oCatsc_root_raised_cosine_bandpass
oCatsc_rs_decoderReed-Solomon decoder for ATSCinput: atsc_mpeg_packet_rs_encoded; output: atsc_mpeg_packet_no_sync
oCatsc_rs_encoderReed-Solomon encoder for ATSCinput: atsc_mpeg_packet_no_sync; output: atsc_mpeg_packet_rs_encoded
oCatsc_soft_data_segment
oCatsc_trellis_encoderATSC 12-way interleaved trellis encoder (atsc_mpeg_packet_rs_encoded –> atsc_data_segment)input: atsc_mpeg_packet_rs_encoded; output: atsc_data_segment
oCatsc_viterbi_decoderATSC 12-way interleaved viterbi decoder (atsc_soft_data_segment –> atsc_mpeg_packet_rs_encoded)input: atsc_soft_data_segment; output: atsc_mpeg_packet_rs_encoded
oCatsc_vsbtx_lp
oCatsci_basic_trellis_encoderATSC trellis encoder building block
oCatsci_data_deinterleaverAtsc convolutional data deinterleaver
oCatsci_data_interleaverAtsc convolutional data interleaver
oCatsci_equalizerAbstract base class for ATSC equalizer
oCatsci_equalizer_lms
oCatsci_equalizer_lms2
oCatsci_equalizer_nop
oCatsci_exp2_lp
oCatsci_fake_single_viterbiSingle channel viterbi decoder
oCatsci_fs_checkerAbstract base class for ATSC field sync checker
oCatsci_fs_checker_naiveNaive concrete implementation of field sync checker
oCatsci_fs_correlatorAbstract base class for ATSC field sync correlator
oCatsci_fs_correlator_naiveNaive concrete implementation of field sync correlator
oCatsci_interpolatorInterpolator control for segment and symbol sync recovery
oCatsci_randomizerATSC data "whitener"
oCatsci_reed_solomonATSC Reed-Solomon encoder / decoder
oCatsci_single_viterbiSingle channel viterbi decoder
oCatsci_slicer_agcAutomatic Gain Control class for atsc slicer
oCatsci_sliding_correlatorLook for the PN 511 field sync pattern
oCatsci_sssrATSC Segment and Symbol Sync Recovery
oCatsci_trellis_encoderFancy, schmancy 12-way interleaved trellis encoder for ATSC
oCatsci_viterbi_decoderFancy, schmancy 12-way interleaved viterbi decoder for ATSC
oCaudio_alsa_sinkAudio sink using ALSAThe sink has N input streams of floats, where N depends on the hardware characteristics of the selected device
oCaudio_alsa_sourceAudio source using ALSAThe source has between 1 and N input streams of floats, where N is depends on the hardware characteristics of the selected device
oCaudio_jack_sinkAudio sink using JACKThe sink has one input stream of floats
oCaudio_jack_sourceAudio source using JACKThe source has one input stream of floats
oCaudio_oss_sinkAudio sink using OSSinput signature is one or two streams of floats. Input samples must be in the range [-1,1]
oCaudio_oss_sourceAudio source using OSSOutput signature is one or two streams of floats. Output samples will be in the range [-1,1]
oCaudio_osx_sinkAudio sink using OSXinput signature is one or two streams of floats. Input samples must be in the range [-1,1]
oCaudio_osx_sourceAudio source using OSXInput signature is one or two streams of floats. Samples must be in the range [-1,1]
oCaudio_portaudio_sinkAudio sink using PORTAUDIOInput samples must be in the range [-1,1]
oCaudio_portaudio_sourceAudio source using PORTAUDIOInput samples must be in the range [-1,1]
oCaudio_sinkCreates a sink from an audio device
oCaudio_sourceCreates a source from an audio device
oCaudio_windows_sinkAudio sink using winmm mmsystem (win32 only)input signature is one or two streams of floats. Input samples must be in the range [-1,1]
oCaudio_windows_sourceAudio source using winmm mmsystem (win32 only)Output signature is one or two streams of floats. Output samples will be in the range [-1,1]
oCbit128
oCcircular_buffer
oCCODEC2
oCcomedi_sink_sSink using COMEDI
oCcomedi_source_sSource using COMEDI
oCCOMP
oCconvolutional_interleaverTemplate class for generic convolutional interleaver
oCdigital_binary_slicer_fbSlice float binary symbol outputting 1 bit outputx < 0 –> 0 x >= 0 –> 1
oCdigital_clock_recovery_mm_ccMueller and Müller (M&M) based clock recovery block with complex input, complex output.This implements the Mueller and Müller (M&M) discrete-time error-tracking synchronizer
oCdigital_clock_recovery_mm_ffMueller and Müller (M&M) based clock recovery block with float input, float output.This implements the Mueller and Müller (M&M) discrete-time error-tracking synchronizer
oCdigital_cma_equalizer_ccImplements constant modulus adaptive filter on complex streamThe error value and tap update equations (for p=2) can be found in:
oCdigital_constellationAn abstracted constellation objectThe constellation objects hold the necessary information to pass around constellation information for modulators and demodulators. These objects contain the mapping between the bits and the constellation points used to represent them as well as methods for slicing the symbol space. Various implementations are possible for efficiency and ease of use
oCdigital_constellation_8pskDigital constellation for 8PSK
oCdigital_constellation_bpskDigital constellation for BPSK
oCdigital_constellation_calcdistCalculate Euclidian distance for any constellationConstellation which calculates the distance to each point in the constellation for decision making. Inefficient for large constellations
oCdigital_constellation_decoder_cbConstellation Decoder
oCdigital_constellation_dqpskDigital constellation for DQPSK
oCdigital_constellation_pskDigital_constellation_pskConstellation space is divided into pie slices sectors
oCdigital_constellation_qpskDigital constellation for QPSK
oCdigital_constellation_receiver_cbThis block takes care of receiving generic modulated signals through phase, frequency, and symbol synchronization.This block takes care of receiving generic modulated signals through phase, frequency, and symbol synchronization. It performs carrier frequency and phase locking as well as symbol timing recovery
oCdigital_constellation_rect
oCdigital_constellation_sectorSectorized digital constellationConstellation space is divided into sectors. Each sector is associated with the nearest constellation point
oCdigital_correlate_access_code_bbExamine input for specified access code, one bit at a time.input: stream of bits, 1 bit per input byte (data in LSB) output: stream of bits, 2 bits per output byte (data in LSB, flag in next higher bit)
oCdigital_costas_loop_ccCarrier tracking PLL for QPSKinput: complex; output: complex
The Costas loop can have two output streams: stream 1 is the baseband I and Q; stream 2 is the normalized frequency of the loop
oCdigital_cpmmod_bcGeneric CPM modulator
oCdigital_fll_band_edge_ccFrequency Lock Loop using band-edge filters
oCdigital_gmskmod_bcGMSK modulator
oCdigital_impl_mpsk_snr_estA parent class for SNR estimators, specifically for M-PSK signals in AWGN channels
oCdigital_impl_mpsk_snr_est_m2m4SNR Estimator using 2nd and 4th-order moments
oCdigital_impl_mpsk_snr_est_simpleSNR Estimator using simple mean/variance estimates
oCdigital_impl_mpsk_snr_est_skewSNR Estimator using skewness correction
oCdigital_impl_mpsk_snr_est_svrSignal-to-Variation Ratio SNR Estimator
oCdigital_impl_snr_est_m2m4SNR Estimator using 2nd and 4th-order moments
oCdigital_kurtotic_equalizer_ccImplements a kurtosis-based adaptive equalizer on complex streamY. Guo, J. Zhao, Y. Sun, "Sign kurtosis maximization based blind equalization algorithm," IEEE Conf. on Control, Automation, Robotics and Vision, Vol. 3, Dec. 2004, pp. 2052 - 2057
oCdigital_lms_dd_equalizer_ccLeast-Mean-Square Decision Directed Equalizer (complex in/out)This block implements an LMS-based decision-directed equalizer. It uses a set of weights, w, to correlate against the inputs, u, and a decisions is then made from this output. The error in the decision is used to update teh weight vector
oCdigital_mpsk_receiver_ccThis block takes care of receiving M-PSK modulated signals through phase, frequency, and symbol synchronization.This block takes care of receiving M-PSK modulated signals through phase, frequency, and symbol synchronization. It performs carrier frequency and phase locking as well as symbol timing recovery. It works with (D)BPSK, (D)QPSK, and (D)8PSK as tested currently. It should also work for OQPSK and PI/4 DQPSK
oCdigital_mpsk_snr_est_ccA block for computing SNR of a signal
oCdigital_ofdm_cyclic_prefixerAdds a cyclic prefix vector to an input size long ofdm symbol(vector) and converts vector to a stream output_size long
oCdigital_ofdm_frame_acquisitionTake a vector of complex constellation points in from an FFT and performs a correlation and equalization.This block takes the output of an FFT of a received OFDM symbol and finds the start of a frame based on two known symbols. It also looks at the surrounding bins in the FFT output for the correlation in case there is a large frequency shift in the data. This block assumes that the fine frequency shift has already been corrected and that the samples fall in the middle of one FFT bin
oCdigital_ofdm_frame_sinkTakes an OFDM symbol in, demaps it into bits of 0's and 1's, packs them into packets, and sends to to a message queue sink.NOTE: The mod input parameter simply chooses a pre-defined demapper/slicer. Eventually, we want to be able to pass in a reference to an object to do the demapping and slicing for a given modulation type
oCdigital_ofdm_insert_preambleInsert "pre-modulated" preamble symbols before each payload
oCdigital_ofdm_mapper_bcvTake a stream of bytes in and map to a vector of complex constellation points suitable for IFFT input to be used in an ofdm modulator. Abstract class must be subclassed with specific mapping
oCdigital_ofdm_samplerDoes the rest of the OFDM stuff
oCdigital_probe_mpsk_snr_est_cA probe for computing SNR of a signal
oCFCD_CAPS_STRUCTFCD capabilities that depend on both hardware and firmware
oCfcd_source_cFuncube Dongle source block
oCfcd_source_c_impl
oCflex_mode
oCfsmFinite State Machine Specification class
oCg72x_state
oCgr_adaptive_fir_cccAdaptive FIR filter with gr_complex input, gr_complex output and float taps
oCgr_adaptive_fir_ccfAdaptive FIR filter with gr_complex input, gr_complex output and float taps
oCgr_add_ffAdd streams of complex values
oCgr_additive_scrambler_bb
oCgr_agc2_ccHigh performance Automatic Gain Control classFor Power the absolute value of the complex number is used
oCgr_agc2_ffHigh performance Automatic Gain Control class
oCgr_agc_ccHigh performance Automatic Gain Control classFor Power the absolute value of the complex number is used
oCgr_agc_ffHigh performance Automatic Gain Control classPower is approximated by absolute value
oCgr_align_on_samplenumbers_ss
oCgr_annotator_1to11-to-1 stream annotator testing block. FOR TESTING PURPOSES ONLY
oCgr_annotator_alltoallAll-to-all stream annotator testing block. FOR TESTING PURPOSES ONLY
oCgr_base_error_handler
oCgr_basic_blockThe abstract base class for all signal processing blocks.Basic blocks are the bare abstraction of an entity that has a name, a set of inputs and outputs, and a message queue. These are never instantiated directly; rather, this is the abstract parent class of both gr_hier_block, which is a recursive container, and gr_block, which implements actual signal processing functions
oCgr_bin_statistics_fControl scanning and record frequency domain statistics
oCgr_blockThe abstract base class for all 'terminal' processing blocks.A signal processing flow is constructed by creating a tree of hierarchical blocks, which at any level may also contain terminal nodes that actually implement signal processing functions. This is the base class for all such leaf nodes
oCgr_block_detailImplementation details to support the signal processing abstractionThis class contains implementation detail that should be "out of sight" of almost all users of GNU Radio. This decoupling also means that we can make changes to the guts without having to recompile everything
oCgr_block_executorManage the execution of a single block
oCgr_bufferSingle writer, multiple reader fifo
oCgr_buffer_readerHow we keep track of the readers of a gr_buffer
oCgr_burst_taggerOutput[i] = input[i]
oCgr_bytes_to_symsConvert stream of bytes to stream of +/- 1 symbolsinput: stream of bytes; output: stream of float
oCgr_channel_modelChannel simulator
oCgr_char_to_floatConvert stream of chars to a stream of float
oCgr_char_to_shortConvert stream of chars to a stream of float
oCgr_check_counting_sSink that checks if its input stream consists of a counting sequence
oCgr_check_lfsr_32k_sSink that checks if its input stream consists of a lfsr_32k sequence.This sink is typically used along with gr_lfsr_32k_source_s to test the USRP using its digital loopback mode
oCgr_circular_file
oCgr_complex_to_argComplex in, angle out (float)
oCgr_complex_to_floatConvert a stream of gr_complex to 1 or 2 streams of float
oCgr_complex_to_imagComplex in, imaginary out (float)
oCgr_complex_to_interleaved_shortConvert stream of complex to a stream of interleaved shorts
oCgr_complex_to_magComplex in, magnitude out (float)
oCgr_complex_to_mag_squaredComplex in, magnitude squared out (float)
oCgr_complex_to_realComplex in, real out (float)
oCgr_conjugate_ccOutput = complex conjugate of input
oCgr_copyOutput[i] = input[i]When enabled (default), this block copies its input to its output. When disabled, this block drops its input on the floor
oCgr_correlate_access_code_tag_bbExamine input for specified access code, one bit at a time.input: stream of bits, 1 bit per input byte (data in LSB) output: unaltered stream of bits (plus tags)
oCgr_cpfsk_bcPerform continuous phase 2-level frequency shift keying modulation on an input stream of unpacked bits
oCgr_cpm
oCgr_cpu
oCgr_ctcss_squelch_ffGate or zero output if ctcss tone not present
oCgr_dc_blocker_ccComputationally efficient controllable DC blocker
oCgr_dc_blocker_ffComputationally efficient controllable DC blocker
oCgr_decode_ccsds_27_fbA rate 1/2, k=7 convolutional decoder for the CCSDS standardThis block performs soft-decision convolutional decoding using the Viterbi algorithm
oCgr_deinterleaveDeinterleave a single input into N outputs
oCgr_delayDelay the input by a certain number of samples
oCgr_descrambler_bb
oCgr_diff_decoder_bbY[0] = (x[0] - x[-1]) % MDifferential decoder
oCgr_diff_encoder_bbY[0] = (x[0] + y[-1]) % MDifferential encoder
oCgr_diff_phasor_cc
oCgr_dispatcherInvoke callbacks based on select
oCgr_dpll_bbDetect the peak of a signalIf a peak is detected, this block outputs a 1, or it outputs 0's
oCgr_edgeClass representing a connection between to graph endpoints
oCgr_encode_ccsds_27_bbA rate 1/2, k=7 convolutional encoder for the CCSDS standardThis block performs convolutional encoding using the CCSDS standard polynomial ("Voyager")
oCgr_endpointClass representing a specific input or output graph endpoint
oCgr_error_handlerAbstract error handler
oCgr_fake_channel_decoder_ppRemove fake padding from packetinput: stream of byte vectors; output: stream of byte vectors
oCgr_fake_channel_encoder_ppPad packet with alternating 1,0 pattern.input: stream of byte vectors; output: stream of byte vectors
oCgr_feedforward_agc_ccNon-causal AGC which computes required gain based on max absolute value over nsamples
oCgr_fevalBase class for evaluating a function: void -> voidThis class is designed to be subclassed in Python or C++ and is callable from both places. It uses SWIG's "director" feature to implement the magic. It's slow. Don't use it in a performance critical path
oCgr_feval_ccBase class for evaluating a function: complex -> complexThis class is designed to be subclassed in Python or C++ and is callable from both places. It uses SWIG's "director" feature to implement the magic. It's slow. Don't use it in a performance critical path
oCgr_feval_ddBase class for evaluating a function: double -> doubleThis class is designed to be subclassed in Python or C++ and is callable from both places. It uses SWIG's "director" feature to implement the magic. It's slow. Don't use it in a performance critical path
oCgr_feval_llBase class for evaluating a function: long -> longThis class is designed to be subclassed in Python or C++ and is callable from both places. It uses SWIG's "director" feature to implement the magic. It's slow. Don't use it in a performance critical path
oCgr_fft_filter_cccFast FFT filter with gr_complex input, gr_complex output and gr_complex taps
oCgr_fft_filter_fffFast FFT filter with float input, float output and float taps
oCgr_fft_vccCompute forward or reverse FFT. complex vector in / complex vector out.Abstract base class
oCgr_fft_vcc_fftwCompute forward or reverse FFT. complex vector in / complex vector out.Concrete class that uses FFTW
oCgr_fft_vfcCompute forward FFT. float vector in / complex vector out
oCgr_file_descriptor_sinkWrite stream to file descriptor
oCgr_file_descriptor_sourceRead stream from file descriptor
oCgr_file_error_handler
oCgr_file_sinkWrite stream to file
oCgr_file_sink_baseCommon base class for file sinks
oCgr_file_sourceRead stream from file
oCgr_filter_delay_fcFilter-Delay Combination Block.The block takes one or two float stream and outputs a complex stream. If only one float stream is input, the real output is a delayed version of this input and the imaginary output is the filtered output. If two floats are connected to the input, then the real output is the delayed version of the first input, and the imaginary output is the filtered output. The delay in the real path accounts for the group delay introduced by the filter in the imaginary path. The filter taps needs to be calculated before initializing this block
oCgr_fir_ccc_3dnow3DNow! version of gr_fir_ccc
oCgr_fir_ccc_3dnowext
oCgr_fir_ccc_simdCommon base class for SIMD versions of gr_fir_cccThis base class handles alignment issues common to SSE and 3DNOW subclasses
oCgr_fir_ccc_sseSSE version of gr_fir_ccc
oCgr_fir_ccf_3dnow3DNow! version of gr_fir_ccf
oCgr_fir_ccf_armv7_aArmv7_a using NEON coprocessor version of gr_fir_ccf
oCgr_fir_ccf_simdCommon base class for SIMD versions of gr_fir_ccfThis base class handles alignment issues common to SSE and 3DNOW subclasses
oCgr_fir_ccf_sseSSE version of gr_fir_ccf
oCgr_fir_fcc_3dnow3DNow! version of gr_fir_fcc
oCgr_fir_fcc_simdCommon base class for SIMD versions of gr_fir_fccThis base class handles alignment issues common to SSE and 3DNOW subclasses
oCgr_fir_fcc_sseSSE version of gr_fir_fcc
oCgr_fir_fff_3dnow3DNow! version of gr_fir_fff
oCgr_fir_fff_altivecAltivec version of gr_fir_fff
oCgr_fir_fff_armv7_aArmv7_a using NEON coprocessor version of gr_fir_fff
oCgr_fir_fff_simdCommon base class for SIMD versions of gr_fir_fffThis base class handles alignment issues common to SSE and 3DNOW subclasses
oCgr_fir_fff_sseSSE version of gr_fir_fff
oCgr_fir_fsf_3dnow3DNow! version of gr_fir_fsf
oCgr_fir_fsf_simdCommon base class for SIMD versions of gr_fir_fsfThis base class handles alignment issues common to SSE and 3DNOW subclasses
oCgr_fir_fsf_sseSSE version of gr_fir_fsf
oCgr_fir_scc_3dnow3DNow! version of gr_fir_scc
oCgr_fir_scc_3dnowext3DNow! Ext version of gr_fir_scc
oCgr_fir_scc_simdCommon base class for SIMD versions of gr_fir_sccThis base class handles alignment issues common to SSE and 3DNOW subclasses
oCgr_fir_scc_sseSSE version of gr_fir_scc
oCgr_fir_sysconfig_armv7_a
oCgr_fir_sysconfig_powerpc
oCgr_fir_sysconfig_x86
oCgr_firdesFinite Impulse Response (FIR) filter design functions
oCgr_flat_flowgraphClass specializing gr_flat_flowgraph that has all nodes as gr_blocks, with no hierarchy
oCgr_float_to_charConvert stream of float to a stream of char
oCgr_float_to_complexConvert 1 or 2 streams of float to a stream of gr_complex
oCgr_float_to_intConvert stream of float to a stream of short
oCgr_float_to_shortConvert stream of float to a stream of short
oCgr_float_to_ucharConvert stream of float to a stream of unsigned char
oCgr_flowgraphClass representing a directed, acyclic graph of basic blocks
oCgr_fmdet_cfImplements an IQ slope detector
oCgr_fractional_interpolator_ccInterpolating mmse filter with gr_complex input, gr_complex output
oCgr_fractional_interpolator_ffInterpolating mmse filter with float input, float output
oCgr_framer_sink_1Given a stream of bits and access_code flags, assemble packets.input: stream of bytes from gr_correlate_access_code_bb output: none. Pushes assembled packet into target queue
oCgr_frequency_modulator_fcFrequency modulator blockfloat input; complex baseband output
oCgr_fxptFixed point sine and cosine and friends.fixed pt radians
-2**31 -pi 0 0 2**31-1 pi - epsilon
oCgr_fxpt_ncoNumerically Controlled Oscillator (NCO)
oCgr_fxpt_vcoVoltage Controlled Oscillator (VCO)
oCgr_glfsr_source_bGalois LFSR pseudo-random source
oCgr_glfsr_source_fGalois LFSR pseudo-random source generating float outputs -1.0 - 1.0
oCgr_goertzel_fcGoertzel single-bin DFT calculation
oCgr_headCopies the first N items to the output then signals doneUseful for building test cases
oCgr_hier_block2Hierarchical container class for gr_block's and gr_hier_block2's
oCgr_hier_block2_detail
oCgr_hilbert_fcHilbert transformer.real output is input appropriately delayed. imaginary output is hilbert filtered (90 degree phase shift) version of input
oCgr_histo_sink_fHistogram module
oCgr_iir_filter_ffdIIR filter with float input, float output and double tapsThis filter uses the Direct Form I implementation, where fftaps contains the feed-forward taps, and fbtaps the feedback ones
oCgr_int_to_floatConvert stream of int to a stream of float
oCgr_interleaveInterleave N inputs to a single output
oCgr_interleaved_short_to_complexConvert stream of interleaved shorts to a stream of complex
oCgr_io_signatureI/o signature for input and output ports
oCgr_iqcomp_cc
oCgr_keep_one_in_nDecimate a stream, keeping one item out of every n
oCgr_kludge_copyOutput[i] = input[i]This is a short term kludge to work around a problem with the hierarchical block impl
oCgr_lfsr_32k_source_sLFSR pseudo-random source with period of 2^15 bits (2^11 shorts)This source is typically used along with gr_check_lfsr_32k_s to test the USRP using its digital loopback mode
oCgr_local_sighandlerGet and set signal handler
oCgr_map_bbOutput[i] = map[input[i]]
oCgr_messageMessage class
oCgr_message_sinkGather received items into messages and insert into msgq
oCgr_message_sourceTurn received messages into a stream
oCgr_msg_accepterAccepts messages and inserts them into a message queue, then notifies subclass gr_basic_block there is a message pending
oCgr_msg_handlerAbstract class of message handlers
oCgr_msg_queueThread-safe message queue
oCgr_multiply_ccMultiply streams of complex values
oCgr_multiply_conjugate_ccMultiplies a stream by the conjugate of the second stream
oCgr_multiply_const_ccMultiply stream of complex values with a constant k
oCgr_multiply_const_ffMultiply stream of float values with a constant k
oCgr_multiply_ffMultiply streams of complex values
oCgr_ncoBase class template for Numerically Controlled Oscillator (NCO)
oCgr_nlog10_ffOutput = n*log10(input) + k
oCgr_nopDoes nothing. Used for testing only
oCgr_null_sinkBit bucket
oCgr_null_sourceA source of zeros
oCgr_ofdm_bpsk_demapperTake a vector of complex constellation points in from an FFT and demodulate to a stream of bits. Simple BPSK version
oCgr_ofdm_frame_sink2Takes an OFDM symbol in, demaps it into bits of 0's and 1's, packs them into packets, and sends to to a message queue sink.NOTE: The mod input parameter simply chooses a pre-defined demapper/slicer. Eventually, we want to be able to pass in a reference to an object to do the demapping and slicing for a given modulation type
oCgr_oscope_gutsGuts of oscilloscope trigger and buffer module
oCgr_oscope_sink_fBuilding block for python oscilloscope module.Accepts multiple float streams
oCgr_oscope_sink_xAbstract class for python oscilloscope module.Don't instantiate this. Use gr_oscope_sink_f or gr_oscope_sink_c instead
oCgr_pa_2x2_phase_combinerPa_2x2 phase combinerAnntenas are arranged like this:
oCgr_packet_sinkProcess received bits looking for packet sync, header, and process bits into packet
oCgr_peak_detector2_fbDetect the peak of a signalIf a peak is detected, this block outputs a 1, or it outputs 0's. A separate debug output may be connected, to view the internal EWMA described below
oCgr_pfb_arb_resampler_ccfPolyphase filterbank arbitrary resampler with gr_complex input, gr_complex output and float taps
oCgr_pfb_arb_resampler_fffPolyphase filterbank arbitrary resampler with float input, float output and float taps
oCgr_pfb_channelizer_ccfPolyphase filterbank channelizer with gr_complex input, gr_complex output and float taps
oCgr_pfb_clock_sync_ccfTiming synchronizer using polyphase filterbanks
oCgr_pfb_clock_sync_fffTiming synchronizer using polyphase filterbanks
oCgr_pfb_decimator_ccfPolyphase filterbank bandpass decimator with gr_complex input, gr_complex output and float taps
oCgr_pfb_interpolator_ccfPolyphase filterbank interpolator with gr_complex input, gr_complex output and float taps
oCgr_pfb_synthesis_filterbank_ccfPolyphase synthesis filterbank with gr_complex input, gr_complex output and float taps
oCgr_phase_modulator_fcPhase modulator blockoutput=complex(cos(in*sensitivity),sin(in*sensitivity))
oCgr_pll_carriertracking_ccImplements a PLL which locks to the input frequency and outputs the input signal mixed with that carrier.input: stream of complex; output: stream of complex
oCgr_pll_freqdet_cfImplements a PLL which locks to the input frequency and outputs an estimate of that frequency. Useful for FM Demod.input: stream of complex; output: stream of floats
oCgr_pll_refout_ccImplements a PLL which locks to the input frequency and outputs a carrierinput: stream of complex; output: stream of complex
oCgr_pn_correlator_ccPN code sequential search correlator
oCgr_preferences
oCgr_prefsBase class for representing user preferences a la windows INI files.The real implementation is in Python, and is accessable from C++ via the magic of SWIG directors
oCgr_probe_avg_mag_sqrd_cCompute avg magnitude squared.input: gr_complex
oCgr_probe_avg_mag_sqrd_cfCompute avg magnitude squared.input: gr_complex output: gr_float
oCgr_probe_avg_mag_sqrd_fCompute avg magnitude squared.input: float
oCgr_probe_density_b
oCgr_probe_mpsk_snr_c
oCgr_pwr_squelch_ccGate or zero output when input power below threshold
oCgr_pwr_squelch_ffGate or zero output when input power below threshold
oCgr_quadrature_demod_cfQuadrature demodulator: complex in, float outThis can be used to demod FM, FSK, GMSK, etc. The input is complex baseband
oCgr_rail_ff
oCgr_randomPseudo random number generator
oCgr_regenerate_bbDetect the peak of a signal and repeat every period samplesIf a peak is detected, this block outputs a 1 repeated every period samples until reset by detection of another 1 on the input or stopped after max_regen regenerations have occurred
oCgr_repeatRepeat a sample 'interp' times in output stream
oCgr_rms_cfRMS average power
oCgr_rms_ffRMS average power
oCgr_rotator
oCgr_schedulerAbstract scheduler that takes a flattened flow graph and runs it
oCgr_scheduler_stsConcrete scheduler that uses the single_threaded_scheduler
oCgr_scheduler_tpbConcrete scheduler that uses a kernel thread-per-block
oCgr_scrambler_bb
oCgr_select_handlerAbstract handler for select based notification
oCgr_short_to_charConvert stream of short to a stream of float
oCgr_short_to_floatConvert stream of short to a stream of float
oCgr_signalRepresentation of signal
oCgr_simple_correlatorInverse of gr_simple_framer (more or less)
oCgr_simple_framerAdd sync field, seq number and command field to payload
oCgr_simple_squelch_ccSimple squelch block based on average signal power and threshold in dB
oCgr_single_pole_iirClass template for single pole IIR filter
oCgr_single_pole_iir< gr_complex, i_type, double >
oCgr_single_pole_iir_filter_ccSingle pole IIR filter with complex input, complex outputThe input and output satisfy a difference equation of the form \f{ y[n] - (1-alpha) y[n-1] = alpha x[n] \f}
oCgr_single_pole_iir_filter_ffSingle pole IIR filter with float input, float outputThe input and output satisfy a difference equation of the form \f{ y[n] - (1-alpha) y[n-1] = alpha x[n] \f}
oCgr_single_threaded_schedulerSimple scheduler for stream computations
oCgr_skipheadSkips the first N items, from then on copies items to the outputUseful for building test cases and sources which have metadata or junk at the start
oCgr_squash_ff
oCgr_squelch_base_cc
oCgr_squelch_base_ff
oCgr_stream_muxStream muxing block to multiplex many streams into one with a specified format
oCgr_stream_to_streamsConvert a stream of items into a N streams of itemsConverts a stream of N items into N streams of 1 item. Repeat ad infinitum
oCgr_stream_to_vectorConvert a stream of items into a stream of blocks containing nitems_per_block
oCgr_streams_to_streamConvert N streams of 1 item into a 1 stream of N itemsConvert N streams of 1 item into 1 stream of N items. Repeat ad infinitum
oCgr_streams_to_vectorConvert N streams of items to 1 stream of vector length N
oCgr_stretch_ff
oCgr_sync_blockSynchronous 1:1 input to output with historyOverride work to provide the signal processing implementation
oCgr_sync_decimatorSynchronous N:1 input to output with historyOverride work to provide the signal processing implementation
oCgr_sync_interpolatorSynchronous 1:N input to output with historyOverride work to provide the signal processing implementation
oCgr_tag_t
oCgr_tagged_file_sinkWrite stream to file descriptor
oCgr_testTest class for testing runtime system (setting up buffers and such.)This block does not do any usefull actual data processing. It just exposes setting all standard block parameters using the contructor or public methods
oCgr_threshold_ffPlease fix my documentation
oCgr_throttleThrottle flow of samples such that the average rate does not exceed samples_per_sec.input: one stream of itemsize; output: one stream of itemsize
oCgr_timerImplement timeouts
oCgr_top_blockTop-level hierarchical block representing a flowgraph
oCgr_top_block_implAbstract implementation details of gr_top_blockThe actual implementation of gr_top_block. Separate class allows decoupling of changes from dependent classes
oCgr_tpb_detailUsed by thread-per-block scheduler
oCgr_tpb_thread_bodyThe body of each thread-per-block thread
oCgr_transcendentalA block that performs various transcendental math operations
oCgr_uchar_to_floatConvert stream of unsigned chars to a stream of float
oCgr_udp_sinkWrite stream to an UDP socket
oCgr_udp_sourceRead stream from an UDP socket
oCgr_unpack_k_bits_bbConverts a byte with k relevent bits to k output bytes with 1 bit in the LSB
oCgr_vcoBase class template for Voltage Controlled Oscillator (VCO)
oCgr_vco_fVCO - Voltage controlled oscillatorinput: float stream of control voltages; output: float oscillator output
oCgr_vector_to_streamConvert a stream of blocks of nitems_per_block items into a stream of items
oCgr_vector_to_streamsConvert 1 stream of vectors of length N to N streams of items
oCgr_vmcircbufAbstract class to implement doubly mapped virtual memory circular buffers
oCgr_vmcircbuf_createfilemappingConcrete class to implement circular buffers with mmap and shm_open
oCgr_vmcircbuf_createfilemapping_factoryConcrete factory for circular buffers built using mmap and shm_open
oCgr_vmcircbuf_factoryAbstract factory for creating circular buffers
oCgr_vmcircbuf_mmap_shm_openConcrete class to implement circular buffers with mmap and shm_open
oCgr_vmcircbuf_mmap_shm_open_factoryConcrete factory for circular buffers built using mmap and shm_open
oCgr_vmcircbuf_mmap_tmpfileConcrete class to implement circular buffers with mmap and shm_open
oCgr_vmcircbuf_mmap_tmpfile_factoryConcrete factory for circular buffers built using mmap and shm_open
oCgr_vmcircbuf_sysconfig
oCgr_vmcircbuf_sysv_shmConcrete class to implement circular buffers with mmap and shm_open
oCgr_vmcircbuf_sysv_shm_factoryConcrete factory for circular buffers built using mmap and shm_open
oCgr_wavelet_ffCompute wavelet transform using gsl routines
oCgr_wavfile_sinkWrite stream to a Microsoft PCM (.wav) file
oCgr_wavfile_sourceRead stream from a Microsoft PCM (.wav) file, output floats
oCgr_wvps_ffComputes the Wavelet Power Spectrum from a set of wavelet coefficients
oCgri_agc2_ccHigh performance Automatic Gain Control class
oCgri_agc2_ffHigh performance Automatic Gain Control class with attack and decay rate
oCgri_agc_ccHigh performance Automatic Gain Control class
oCgri_agc_ffHigh performance Automatic Gain Control class
oCgri_control_loop
oCgri_fft_complexFFT: complex in, complex out
oCgri_fft_filter_ccc_genericFast FFT filter with gr_complex input, gr_complex output and gr_complex taps
oCgri_fft_filter_ccc_sseFast FFT filter with gr_complex input, gr_complex output and gr_complex taps
oCgri_fft_filter_fff_generic
oCgri_fft_filter_fff_sse
oCgri_fft_plannerExport reference to planner mutex for those apps that want to use FFTW w/o using the gri_fftw* classes
oCgri_fft_real_fwdFFT: real in, complex out
oCgri_fft_real_revFFT: complex in, float out
oCgri_glfsrGalois Linear Feedback Shift Register using specified polynomial maskGenerates a maximal length pseudo-random sequence of length 2^degree-1
oCgri_goertzelImplements Goertzel single-bin DFT calculation
oCgri_iirBase class template for Infinite Impulse Response filter (IIR)
oCgri_lfsrFibonacci Linear Feedback Shift Register using specified polynomial maskGenerates a maximal length pseudo-random sequence of length 2^degree-1
oCgri_lfsr_15_1_0Linear Feedback Shift Register using primitive polynomial x^15 + x + 1Generates a maximal length pseudo-random sequence of length 2^15 - 1 bits
oCgri_lfsr_32kGenerate pseudo-random sequence of length 32768 bits.This is based on gri_lfsr_15_1_0 with an extra 0 added at the end of the sequence
oCgri_mmse_fir_interpolatorCompute intermediate samples between signal samples x(k*Ts)This implements a Mininum Mean Squared Error interpolator with 8 taps. It is suitable for signals where the bandwidth of interest B = 1/(4*Ts) Where Ts is the time between samples
oCgri_mmse_fir_interpolator_ccCompute intermediate samples between signal samples x(k*Ts)This implements a Mininum Mean Squared Error interpolator with 8 taps. It is suitable for signals where the bandwidth of interest B = 1/(4*Ts) Where Ts is the time between samples
oCgsm_state
oChid_device_info
oChowto_square2_ffSquare2 a stream of floats.This uses the preferred technique: subclassing gr_sync_block
oChowto_square_ffSquare a stream of floats
oCi2cAbstract class for controlling i2c bus
oCi2c_bbioAbstract class that implements bit banging i/o for i2c bus
oCi2c_bbio_ppConcrete class that bit bangs eval board i2c bus using parallel port
oCi2c_bitbangClass for controlling i2c bus
oCimaxdiv_t
oCinterleaverINTERLEAVER class
oCinterleaver_fifoTemplate class for interleaver fifo
oCkiss_fft_cpx
oCkiss_fft_state
oClsp_codebook
oCmicrotune_4702Class for controlling microtune 4702 tuner module
oCmicrotune_4702_eval_boardControl microtune 4702 eval board
oCmicrotune_4937Class for controlling microtune 4937 tuner module
oCmicrotune_4937_eval_boardControl microtune 4937 eval board
oCmicrotune_xxxxAbstract class for controlling microtune {4937,4702} tuner modules
oCmicrotune_xxxx_eval_boardAbstract class for controlling microtune xxxx eval board
oCMODEL
oCmoving_averager_c
oCmoving_averager_f
oCnoaa_hrpt_decoder
oCnoaa_hrpt_deframer
oCnoaa_hrpt_pll_cf
oCoption
oCpager_flex_deinterleaveFlex deinterleave description
oCpager_flex_frameFlex_frame
oCpager_flex_syncFlex sync description
oCpager_slicer_fbSlicer description
oCplinfoPipeline info that flows with data
oCppioAbstract class that provides low level access to parallel port bits
oCppio_ppdevAccess to parallel port bits using the linux ppdev interface
oCqtgui_sink_cA graphical sink to display freq, spec, time, and const plots.This is a QT-based graphical sink the takes a complex stream and plots it. The default action is to plot the signal as a PSD (FFT), spectrogram (waterfall), time domain I&Q, and constellation (I vs. Q) plots. The plots may be turned off by setting the appropriate boolean value in the constructor to False
oCqtgui_sink_fA graphical sink to display freq, spec, and time.This is a QT-based graphical sink the takes a float stream and plots it. The default action is to plot the signal as a PSD (FFT), spectrogram (waterfall), and time domain plots. The plots may be turned off by setting the appropriate boolean value in the constructor to False
oCqtgui_time_sink_cA graphical sink to display multiple signals in time.This is a QT-based graphical sink the takes set of a complex streams and plots them in the time domain. For each signal, both the signal's I and Q parts are plotted, and they are all plotted with a different color, and the set_title and set_color functions can be used to change the lable and color for a given input number
oCqtgui_time_sink_fA graphical sink to display multiple signals in time.This is a QT-based graphical sink the takes set of a float streams and plots them in the time domain. Each signal is plotted with a different color, and the set_title and set_color functions can be used to change the lable and color for a given input number
oCQwtDblClickPlotPicker
oCQwtPickerDblClickPointMachine
oCrs
oCsdr_1000_baseVery low level interface to SDR 1000 xcvr hardware
oCshd_smini_sink
oCshd_smini_source
oCtag_sink_demo
oCtag_source_demo
oCtrellis_constellation_metrics_cfEvaluate metrics for use by the Viterbi algorithm
oCtrellis_permutationPermutation
oCtrellis_siso_combined_f
oCtrellis_siso_f
oCuhd_amsg_source
oCuhd_usrp_sink
oCuhd_usrp_source
oCv_float_u
oCvideo_sdl_sink_sVideo sink using SDL
oCvideo_sdl_sink_ucVideo sink using SDL
oCviterbi_state
oCvocoder_alaw_decode_bsThis block performs alaw audio decoding
oCvocoder_alaw_encode_sbThis block performs g.711 alaw audio encoding
oCvocoder_codec2_decode_psCODEC2 Vocoder Decoder
oCvocoder_codec2_encode_spCODEC2 Vocoder Encoder
oCvocoder_cvsd_decode_bsThis block performs CVSD audio decoding. Its design and implementation is modeled after the CVSD encoder/decoder specifications defined in the Bluetooth standard
oCvocoder_cvsd_encode_sbThis block performs CVSD audio encoding. Its design and implementation is modeled after the CVSD encoder/decoder specifications defined in the Bluetooth standard
oCvocoder_g721_decode_bsThis block performs g721 audio decoding
oCvocoder_g721_encode_sbThis block performs g721 audio encoding
oCvocoder_g723_24_decode_bsThis block performs g723_24 audio decoding
oCvocoder_g723_24_encode_sbThis block performs g723_24 audio encoding
oCvocoder_g723_40_decode_bsThis block performs g723_40 audio decoding
oCvocoder_g723_40_encode_sbThis block performs g723_40 audio encoding
oCvocoder_gsm_fr_decode_psGSM 06.10 Full Rate Vocoder Decoder
oCvocoder_gsm_fr_encode_spGSM 06.10 Full Rate Vocoder Encodershorts in; 33 byte packets out
oCvocoder_ulaw_decode_bsThis block performs ulaw audio decoding
oCvocoder_ulaw_encode_sbThis block performs g.711 ulaw audio encoding
oCvolk_arch_pref
oCVOLK_CPU
oCvolk_func_desc
oCvolk_machine
oCxmm_register
\Cxmm_regs