diff options
Diffstat (limited to 'gr-atsc/lib/qa_atsci_viterbi_decoder.cc')
| -rw-r--r-- | gr-atsc/lib/qa_atsci_viterbi_decoder.cc | 178 |
1 files changed, 0 insertions, 178 deletions
diff --git a/gr-atsc/lib/qa_atsci_viterbi_decoder.cc b/gr-atsc/lib/qa_atsci_viterbi_decoder.cc deleted file mode 100644 index 7f72b22c14..0000000000 --- a/gr-atsc/lib/qa_atsci_viterbi_decoder.cc +++ /dev/null @@ -1,178 +0,0 @@ -/* -*- c++ -*- */ -/* - * Copyright 2002 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. - */ - -#ifdef HAVE_CONFIG_H -#include <config.h> -#endif - -#include <cppunit/TestAssert.h> -#include "qa_atsci_viterbi_decoder.h" -#include "qa_atsci_trellis_encoder.h" -#include <cstdio> -#include <string.h> -#include <stdlib.h> -#include <time.h> - -#define NELEM(x) (sizeof (x) / sizeof (x[0])) - - -static const int NCODERS = atsci_viterbi_decoder::NCODERS; - -#if 0 -static void -map_to_soft_symbols (atsc_soft_data_segment &out, - const atsc_data_segment &in) -{ - for (unsigned int i = 0; i < NELEM (in.data); i++){ - out.data[i] = in.data[i] * 2 - 7; - } -} -#endif - -static void -pad_decoder_input (atsc_soft_data_segment out[NCODERS]) -{ - memset(out, 0, sizeof(*out)*NCODERS); - - // add data segment sync - for (int i = 0; i < NCODERS; i++){ - out[i].data[0] = 5; - out[i].data[1] = -5; - out[i].data[2] = -5; - out[i].data[3] = 5; - out[i].pli.set_regular_seg (false, i); - } -} - -void -qa_atsci_viterbi_decoder::t0 () -{ -#if 0 - atsci_trellis_encoder enc; - atsc_mpeg_packet_rs_encoded encoder_in[NCODERS]; - atsc_data_segment encoder_out[NCODERS]; - atsc_soft_data_segment decoder_in[NCODERS]; - atsc_soft_data_segment decoder_in_pad[NCODERS]; - atsc_mpeg_packet_rs_encoded decoder_out[NCODERS]; - atsc_mpeg_packet_rs_encoded decoder_out_pad[NCODERS]; - - - memset (encoder_in, 0, sizeof (encoder_in)); - memset (encoder_out, 0, sizeof (encoder_out)); - memset (decoder_out_pad, 0, sizeof (decoder_out_pad)); - - srandom (1); - - for (int i = 0; i < NCODERS; i++){ - for (unsigned int j = 0; j < NELEM (encoder_in[i].data); j++){ - int t = (random () >> 8) & 0xff; // 8 random bits - encoder_in[i].data[j] = t; - } - } - - fflush (stdout); - printf ("@@@ ENCODER INPUT @@@\n"); - for (int i = 0; i < NCODERS; i++){ - for (unsigned int j = 0; j < NELEM (encoder_in[i].data); j++){ - printf ("%d\n", encoder_in[i].data[j]); - } - } - - enc.reset (); - enc.encode (encoder_out, encoder_in); - - printf ("@@@ ENCODER OUTPUT @@@\n"); - for (int i = 0; i < NCODERS; i++){ - for (unsigned int j = 0; j < NELEM (encoder_out[i].data); j++){ - printf ("%d\n", encoder_out[i].data[j]); - } - } - - for (int i = 0; i < NCODERS; i++) - map_to_soft_symbols (decoder_in[i], encoder_out[i]); - - viterbi.reset (); - - // this has only the previous (non-existant) output - viterbi.decode (decoder_out_pad, decoder_in); - - // now we'll see the real output - pad_decoder_input (decoder_in_pad); - viterbi.decode (decoder_out, decoder_in_pad); - - printf ("@@@ DECODER OUTPUT @@@\n"); - for (int i = 0; i < NCODERS; i++){ - for (unsigned int j = 0; j < NELEM (decoder_out[i].data); j++){ - printf ("%d\n", decoder_out[i].data[j]); - } - } - fflush (stdout); -#endif -} - -void -qa_atsci_viterbi_decoder::t1 () -{ - atsc_soft_data_segment decoder_in[NCODERS]; - atsc_soft_data_segment decoder_in_pad[NCODERS]; - atsc_mpeg_packet_rs_encoded decoder_out[NCODERS]; - atsc_mpeg_packet_rs_encoded decoder_out_pad[NCODERS]; - atsc_mpeg_packet_rs_encoded expected_out[NCODERS]; - static const float raw_input[NCODERS * NELEM (decoder_in[0].data)] = { -#include "qa_atsci_viterbi_decoder_t1_input.dat" - }; - static const unsigned char raw_output[NCODERS * NELEM (expected_out[0].data)] = { -#include "qa_atsci_viterbi_decoder_t1_output.dat" - }; - - - // load up input - const float *ri = &raw_input[0]; - for (int i = 0; i < NCODERS; i++){ - for (unsigned int j = 0; j < NELEM (decoder_in[i].data); j++){ - decoder_in[i].data[j] = *ri++; - } - decoder_in[i].pli.set_regular_seg (false, i); - } - - // load up expected output - const unsigned char *ro = &raw_output[0]; - for (int i = 0; i < NCODERS; i++){ - for (unsigned int j = 0; j < NELEM (expected_out[i].data); j++){ - expected_out[i].data[j] = *ro++; - } - expected_out[i].pli.set_regular_seg (false, i); - } - - viterbi.reset (); - - // this has only the previous (non-existant) output - viterbi.decode (decoder_out_pad, decoder_in); - - // now we'll see the real output - pad_decoder_input (decoder_in_pad); - viterbi.decode (decoder_out, decoder_in_pad); - - for (int i = 0; i < NCODERS; i++){ // check the result - CPPUNIT_ASSERT (expected_out[i] == decoder_out[i]); - } -} |