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-rw-r--r--gr-atsc/lib/qa_atsci_trellis_encoder.cc116
1 files changed, 116 insertions, 0 deletions
diff --git a/gr-atsc/lib/qa_atsci_trellis_encoder.cc b/gr-atsc/lib/qa_atsci_trellis_encoder.cc
new file mode 100644
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+++ b/gr-atsc/lib/qa_atsci_trellis_encoder.cc
@@ -0,0 +1,116 @@
+/* -*- 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_trellis_encoder.h"
+#include <cstdio>
+#include <string.h>
+#include <stdlib.h>
+#include <time.h>
+#include <string.h>
+
+#define NELEM(x) (sizeof (x) / sizeof (x[0]))
+
+
+static const int NCODERS = atsci_trellis_encoder::NCODERS;
+
+void
+qa_atsci_trellis_encoder::t0 ()
+{
+#if 0 // generate i/o test data for t1
+
+ atsc_mpeg_packet_rs_encoded in[NCODERS];
+ atsc_data_segment out[NCODERS];
+
+
+ memset (in, 0, sizeof (in));
+ memset (out, 0, sizeof (out));
+
+ srandom (1);
+
+ printf ("@@@ INPUT @@@\n");
+ for (int i = 0; i < NCODERS; i++){
+ for (unsigned int j = 0; j < NELEM (in[i].data); j++){
+ int t = (random () >> 8) & 0xff; // 8 random bits
+ in[i].data[j] = t;
+ printf ("%d\n", t);
+ }
+ }
+
+ enc.reset ();
+ enc.encode (out, in);
+
+ printf ("@@@ OUTPUT @@@\n");
+ for (int i = 0; i < NCODERS; i++){
+ for (unsigned int j = 0; j < NELEM (out[i].data); j++){
+ printf ("%d\n", out[i].data[j]);
+ }
+ }
+#endif
+}
+
+void
+qa_atsci_trellis_encoder::t1 ()
+{
+ atsc_mpeg_packet_rs_encoded in[NCODERS];
+ atsc_data_segment expected_out[NCODERS];
+ atsc_data_segment actual_out[NCODERS];
+ static const unsigned char raw_input[NCODERS * NELEM (in[0].data)] = {
+#include "qa_atsci_trellis_encoder_t1_input.dat"
+ };
+ static const unsigned char raw_output[NCODERS * NELEM (expected_out[0].data)] = {
+#include "qa_atsci_trellis_encoder_t1_output.dat"
+ };
+
+
+ // load up input
+ const unsigned char *r = &raw_input[0];
+ for (int i = 0; i < NCODERS; i++){
+ in[i].pli.set_regular_seg (false, i);
+ for (unsigned int j = 0; j < NELEM (in[i].data); j++){
+ in[i].data[j] = *r++;
+ }
+ }
+
+ // load up expected output
+ r = &raw_output[0];
+ for (int i = 0; i < NCODERS; i++){
+ expected_out[i].pli.set_regular_seg (false, i);
+ for (unsigned int j = 0; j < NELEM (expected_out[i].data); j++){
+ expected_out[i].data[j] = *r++;
+ }
+ }
+
+ memset (&actual_out, 0, sizeof (actual_out)); // ensure zero
+
+ enc.reset ();
+ enc.encode (actual_out, in); // trellis code test data
+
+ for (int i = 0; i < NCODERS; i++){ // check the result
+ CPPUNIT_ASSERT (expected_out[i] == actual_out[i]);
+ CPPUNIT_ASSERT (expected_out[i].pli == actual_out[i].pli);
+ }
+}