diff options
Diffstat (limited to 'gr-trellis/src/lib/trellis_pccc_decoder_combined_fi.cc')
-rw-r--r-- | gr-trellis/src/lib/trellis_pccc_decoder_combined_fi.cc | 147 |
1 files changed, 147 insertions, 0 deletions
diff --git a/gr-trellis/src/lib/trellis_pccc_decoder_combined_fi.cc b/gr-trellis/src/lib/trellis_pccc_decoder_combined_fi.cc new file mode 100644 index 000000000..e87487087 --- /dev/null +++ b/gr-trellis/src/lib/trellis_pccc_decoder_combined_fi.cc @@ -0,0 +1,147 @@ +/* -*- c++ -*- */ +/* + * Copyright 2004,2010 Free Software Foundation, Inc. + * + * This file is part of GNU Radio + * + * GNU Radio is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 3, or (at your option) + * any later version. + * + * GNU Radio is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with GNU Radio; see the file COPYING. If not, write to + * the Free Software Foundation, Inc., 51 Franklin Street, + * Boston, MA 02110-1301, USA. + */ + +// WARNING: this file is machine generated. Edits will be over written + +#ifdef HAVE_CONFIG_H +#include "config.h" +#endif + +#include <trellis_pccc_decoder_combined_fi.h> +#include <gr_io_signature.h> +#include <assert.h> +#include <iostream> +#include "core_algorithms.h" + + +static const float INF = 1.0e9; + +trellis_pccc_decoder_combined_fi_sptr +trellis_make_pccc_decoder_combined_fi ( + const fsm &FSMo, int STo0, int SToK, + const fsm &FSMi, int STi0, int STiK, + const interleaver &INTERLEAVER, + int blocklength, + int repetitions, + trellis_siso_type_t SISO_TYPE, + int D, + const std::vector<float> &TABLE, + trellis_metric_type_t METRIC_TYPE, + float scaling +) +{ + return gnuradio::get_initial_sptr (new trellis_pccc_decoder_combined_fi ( + FSMo, STo0, SToK, + FSMi, STi0, STiK, + INTERLEAVER, + blocklength, + repetitions, + SISO_TYPE, + D, + TABLE,METRIC_TYPE, + scaling + )); +} + +trellis_pccc_decoder_combined_fi::trellis_pccc_decoder_combined_fi ( + const fsm &FSMo, int STo0, int SToK, + const fsm &FSMi, int STi0, int STiK, + const interleaver &INTERLEAVER, + int blocklength, + int repetitions, + trellis_siso_type_t SISO_TYPE, + int D, + const std::vector<float> &TABLE, + trellis_metric_type_t METRIC_TYPE, + float scaling +) + : gr_block ("pccc_decoder_combined_fi", + gr_make_io_signature (1, 1, sizeof (float)), + gr_make_io_signature (1, 1, sizeof (int))), + d_FSMo (FSMo), d_STo0 (STo0), d_SToK (SToK), + d_FSMi (FSMi), d_STi0 (STi0), d_STiK (STiK), + d_INTERLEAVER (INTERLEAVER), + d_blocklength (blocklength), + d_repetitions (repetitions), + d_SISO_TYPE (SISO_TYPE), + d_D (D), + d_TABLE (TABLE), + d_METRIC_TYPE (METRIC_TYPE), + d_scaling (scaling) +{ + assert(d_FSMo.I() == d_FSMi.I()); + set_relative_rate (1.0 / ((double) d_D)); + set_output_multiple (d_blocklength); +} + +void trellis_pccc_decoder_combined_fi::set_scaling(float scaling) +{ + d_scaling = scaling; +} + + +void +trellis_pccc_decoder_combined_fi::forecast (int noutput_items, gr_vector_int &ninput_items_required) +{ + assert (noutput_items % d_blocklength == 0); + int input_required = d_D * noutput_items ; + ninput_items_required[0] = input_required; +} + + + +//=========================================================== + +int +trellis_pccc_decoder_combined_fi::general_work (int noutput_items, + gr_vector_int &ninput_items, + gr_vector_const_void_star &input_items, + gr_vector_void_star &output_items) +{ + assert (noutput_items % d_blocklength == 0); + int nblocks = noutput_items / d_blocklength; + + float (*p2min)(float, float) = NULL; + if(d_SISO_TYPE == TRELLIS_MIN_SUM) + p2min = &min; + else if(d_SISO_TYPE == TRELLIS_SUM_PRODUCT) + p2min = &min_star; + + + const float *in = (const float *) input_items[0]; + int *out = (int *) output_items[0]; + for (int n=0;n<nblocks;n++) { + pccc_decoder_combined( + d_FSMo, d_STo0, d_SToK, + d_FSMi, d_STi0, d_STiK, + d_INTERLEAVER, d_blocklength, d_repetitions, + p2min, + d_D,d_TABLE, + d_METRIC_TYPE, + d_scaling, + &(in[n*d_blocklength*d_D]),&(out[n*d_blocklength]) + ); + } + + consume_each (d_D * noutput_items ); + return noutput_items; +} |