#include <gr_sync_block.h>
Inheritance diagram for gr_sync_block:
Override work to provide the signal processing implementation.
Public Member Functions | |
virtual int | work (int noutput_items, gr_vector_const_void_star &input_items, gr_vector_void_star &output_items)=0 |
just like gr_block::general_work, only this arranges to call consume_each for you | |
void | forecast (int noutput_items, gr_vector_int &ninput_items_required) |
Estimate input requirements given output request. | |
int | general_work (int noutput_items, gr_vector_int &ninput_items, gr_vector_const_void_star &input_items, gr_vector_void_star &output_items) |
compute output items from input items | |
int | fixed_rate_ninput_to_noutput (int ninput) |
Given ninput samples, return number of output samples that will be produced. N.B. this is only defined if fixed_rate returns true. Generally speaking, you don't need to override this. | |
int | fixed_rate_noutput_to_ninput (int noutput) |
Given noutput samples, return number of input samples required to produce noutput. N.B. this is only defined if fixed_rate returns true. Generally speaking, you don't need to override this. | |
Protected Member Functions | |
gr_sync_block (const std::string &name, gr_io_signature_sptr input_signature, gr_io_signature_sptr output_signature) |
gr_sync_block::gr_sync_block | ( | const std::string & | name, | |
gr_io_signature_sptr | input_signature, | |||
gr_io_signature_sptr | output_signature | |||
) | [protected] |
int gr_sync_block::fixed_rate_ninput_to_noutput | ( | int | ninput | ) | [virtual] |
Given ninput samples, return number of output samples that will be produced. N.B. this is only defined if fixed_rate returns true. Generally speaking, you don't need to override this.
Reimplemented from gr_block.
Reimplemented in gr_sync_decimator.
int gr_sync_block::fixed_rate_noutput_to_ninput | ( | int | noutput | ) | [virtual] |
Given noutput samples, return number of input samples required to produce noutput. N.B. this is only defined if fixed_rate returns true. Generally speaking, you don't need to override this.
Reimplemented from gr_block.
Reimplemented in gr_sync_decimator, and gr_sync_interpolator.
void gr_sync_block::forecast | ( | int | noutput_items, | |
gr_vector_int & | ninput_items_required | |||
) | [virtual] |
Estimate input requirements given output request.
noutput_items | number of output items to produce | |
ninput_items_required | number of input items required on each input stream |
noutput_items
, estimate the number of data items required on each input stream. The estimate doesn't have to be exact, but should be close.
Reimplemented from gr_block.
Reimplemented in gr_sync_decimator, and gr_sync_interpolator.
int gr_sync_block::general_work | ( | int | noutput_items, | |
gr_vector_int & | ninput_items, | |||
gr_vector_const_void_star & | input_items, | |||
gr_vector_void_star & | output_items | |||
) | [virtual] |
compute output items from input items
noutput_items | number of output items to write on each output stream | |
ninput_items | number of input items available on each input stream | |
input_items | vector of pointers to the input items, one entry per input stream | |
output_items | vector of pointers to the output items, one entry per output stream |
Implements gr_block.
Reimplemented in gr_sync_decimator, and gr_sync_interpolator.
virtual int gr_sync_block::work | ( | int | noutput_items, | |
gr_vector_const_void_star & | input_items, | |||
gr_vector_void_star & | output_items | |||
) | [pure virtual] |
just like gr_block::general_work, only this arranges to call consume_each for you
The user must override work to define the signal processing code
Implemented in gr_fft_filter_ccc, gr_fft_filter_fff, gr_filter_delay_fc, gr_fir_filter_ccc, gr_fir_filter_ccf, gr_fir_filter_fcc, gr_fir_filter_fff, gr_fir_filter_fsf, gr_fir_filter_scc, gr_freq_xlating_fir_filter_ccc, gr_freq_xlating_fir_filter_ccf, gr_freq_xlating_fir_filter_fcc, gr_freq_xlating_fir_filter_fcf, gr_freq_xlating_fir_filter_scc, gr_freq_xlating_fir_filter_scf, gr_hilbert_fc, gr_iir_filter_ffd, gr_interp_fir_filter_ccc, gr_interp_fir_filter_ccf, gr_interp_fir_filter_fcc, gr_interp_fir_filter_fff, gr_interp_fir_filter_fsf, gr_interp_fir_filter_scc, gr_single_pole_avg_filter_ff, gr_single_pole_iir_filter_cc, gr_single_pole_iir_filter_ff, gr_single_pole_rec_filter_ff, gr_single_zero_avg_filter_ff, gr_single_zero_rec_filter_ff, gr_add_cc, gr_add_const_cc, gr_add_const_ff, gr_add_const_ii, gr_add_const_sf, gr_add_const_ss, gr_add_ff, gr_add_ii, gr_add_ss, gr_agc_cc, gr_agc_ff, gr_bytes_to_syms, gr_char_to_float, gr_check_counting_s, gr_check_lfsr_32k_s, gr_chunks_to_symbols_bc, gr_chunks_to_symbols_bf, gr_complex_to_interleaved_short, gr_complex_to_float, gr_complex_to_real, gr_complex_to_imag, gr_complex_to_mag, gr_complex_to_arg, gr_conjugate_cc, gr_costas_loop_cc, gr_deinterleave, gr_divide_cc, gr_divide_ff, gr_divide_ii, gr_divide_ss, gr_fake_channel_encoder_pp, gr_fake_channel_decoder_pp, gr_fft_vcc, gr_fft_vfc, gr_float_to_char, gr_float_to_complex, gr_float_to_short, gr_float_to_uchar, gr_frequency_modulator_fc, gr_head, gr_interleave, gr_interleaved_short_to_complex, gr_kludge_copy, gr_lfsr_32k_source_s, gr_lms_dfe_cc, gr_lms_dfe_ff, gr_multiply_cc, gr_multiply_const_cc, gr_multiply_const_ff, gr_multiply_const_ii, gr_multiply_const_ss, gr_multiply_ff, gr_multiply_ii, gr_multiply_ss, gr_mute_cc, gr_mute_ff, gr_mute_ii, gr_mute_ss, gr_nlog10_ff, gr_noise_source_c, gr_noise_source_f, gr_noise_source_i, gr_noise_source_s, gr_null_sink, gr_null_source, gr_pa_2x2_phase_combiner, gr_packet_sink, gr_phase_modulator_fc, gr_probe_avg_mag_sqrd_c, gr_probe_avg_mag_sqrd_f, gr_probe_signal_f, gr_quadrature_demod_cf, gr_rms_cf, gr_rms_ff, gr_short_to_float, gr_sig_source_c, gr_sig_source_f, gr_sig_source_i, gr_sig_source_s, gr_simple_squelch_cc, gr_skiphead, gr_stream_to_streams, gr_stream_to_vector, gr_streams_to_stream, gr_streams_to_vector, gr_sub_cc, gr_sub_ff, gr_sub_ii, gr_sub_ss, gr_threshold_ff, gr_throttle, gr_uchar_to_float, gr_vco_f, gr_vector_sink_b, gr_vector_sink_c, gr_vector_sink_f, gr_vector_sink_i, gr_vector_sink_s, gr_vector_source_b, gr_vector_source_c, gr_vector_source_f, gr_vector_source_i, gr_vector_source_s, gr_vector_to_stream, gr_vector_to_streams, gr_file_descriptor_sink, gr_file_descriptor_source, gr_file_sink, gr_file_source, gr_message_sink, gr_message_source, and gr_oscope_sink_f.