1 files changed, 131 insertions, 0 deletions
diff --git a/gr-atsc/lib/qa_convolutional_interleaver.cc b/gr-atsc/lib/qa_convolutional_interleaver.cc
new file mode 100644
index 0000000000..c7b8494f1e
--- /dev/null
+++ b/gr-atsc/lib/qa_convolutional_interleaver.cc
@@ -0,0 +1,131 @@
+/* -*- 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.
+ */
+
+#include <cppunit/TestAssert.h>
+#include "qa_convolutional_interleaver.h"
+
+void
+qa_convolutional_interleaver::t0 ()
+{
+  static int input[16] = {
+     1,  2,  3,  4,
+     5,  6,  7,  8,
+     9, 10, 11, 12,
+    13, 14, 15, 16
+  };
+
+  static int output[16] = {
+     1,  0, 0, 0,
+     5,  2, 0, 0,
+     9,  6, 3, 0,
+    13, 10, 7, 4
+  };
+
+  // test interleaver
+  intl = new convolutional_interleaver<int>(true, 4, 1);
+
+  for (int i = 0; i < 16; i++)
+    CPPUNIT_ASSERT_EQUAL (output[i], intl->transform (input[i]));
+}
+
+void
+qa_convolutional_interleaver::t1 ()
+{
+  static int input[16] = {
+     1,  0, 0, 0,
+     5,  2, 0, 0,
+     9,  6, 3, 0,
+    13, 10, 7, 4
+  };
+
+  static int output[16] = {
+     0,  0, 0, 0,
+     0,  0, 0, 0,
+     0,  0, 0, 0,
+     1,  2, 3, 4
+  };
+
+  // test deinterleaver
+  intl = new convolutional_interleaver<int>(false, 4, 1);
+
+  for (int i = 0; i < 16; i++)
+    CPPUNIT_ASSERT_EQUAL (output[i], intl->transform (input[i]));
+}
+
+void
+qa_convolutional_interleaver::t2 ()
+{
+  intl = new convolutional_interleaver<int>(true, 4, 1);
+  deintl = new convolutional_interleaver<int>(false, 4, 1);
+
+  int	icount = 6000;
+  int	dcount = 6000;
+
+  int	end_to_end_delay = intl->end_to_end_delay ();
+  for (int i = 0; i < end_to_end_delay; i++){
+    CPPUNIT_ASSERT_EQUAL (0, deintl->transform (intl->transform (icount++)));
+  }
+
+  for (int i = 0; i < 3 * end_to_end_delay; i++){
+    CPPUNIT_ASSERT_EQUAL (dcount++, deintl->transform (intl->transform (icount++)));
+  }
+}
+
+void
+qa_convolutional_interleaver::t3 ()
+{
+  intl = new convolutional_interleaver<int>(true, 4, 2);
+  deintl = new convolutional_interleaver<int>(false, 4, 2);
+
+  int	icount = 6000;
+  int	dcount = 6000;
+
+  int	end_to_end_delay = intl->end_to_end_delay ();
+  for (int i = 0; i < end_to_end_delay; i++){
+    CPPUNIT_ASSERT_EQUAL (0, deintl->transform (intl->transform (icount++)));
+  }
+
+  for (int i = 0; i < 3 * end_to_end_delay; i++){
+    CPPUNIT_ASSERT_EQUAL (dcount++, deintl->transform (intl->transform (icount++)));
+  }
+}
+
+void
+qa_convolutional_interleaver::t4 ()
+{
+  intl = new convolutional_interleaver<int>(true, 52, 4);
+  deintl = new convolutional_interleaver<int>(false, 52, 4);
+
+  int	icount = 6000;
+  int	dcount = 6000;
+
+  int	end_to_end_delay = intl->end_to_end_delay ();
+  CPPUNIT_ASSERT_EQUAL (10608, end_to_end_delay);
+
+  for (int i = 0; i < end_to_end_delay; i++){
+    CPPUNIT_ASSERT_EQUAL (0, deintl->transform (intl->transform (icount++)));
+  }
+
+  for (int i = 0; i < 3 * end_to_end_delay; i++){
+    CPPUNIT_ASSERT_EQUAL (dcount++, deintl->transform (intl->transform (icount++)));
+  }
+}