diff options
Diffstat (limited to 'gr-atsc/src/lib/qa_atsci_randomizer.cc')
-rw-r--r-- | gr-atsc/src/lib/qa_atsci_randomizer.cc | 145 |
1 files changed, 0 insertions, 145 deletions
diff --git a/gr-atsc/src/lib/qa_atsci_randomizer.cc b/gr-atsc/src/lib/qa_atsci_randomizer.cc deleted file mode 100644 index c12582dfd..000000000 --- a/gr-atsc/src/lib/qa_atsci_randomizer.cc +++ /dev/null @@ -1,145 +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. - */ - -#include <qa_atsci_randomizer.h> - -#include <cppunit/TestAssert.h> -#include <string.h> - -static unsigned int expected_initial_states[] = { - 0x018f, - 0xd3db, - 0xbaf1, - 0x8e64, - 0x4732, - 0x2399, - 0xc2d0, - 0x6168 -}; - -static unsigned char expected_initial_values[] = { - 0xc0, - 0x6d, - 0x3f, - 0x99, - 0x38, - 0x6a, - 0x29, - 0x52 -}; - -#define NELEMENTS(ary) ((sizeof (ary)) / sizeof (ary[0])) - -void -qa_atsci_randomizer::t0_compare_output_maps () -{ - for (int i = 0; i < 0x10000; i++){ - unsigned char slow = atsci_randomizer::slow_output_map(i); - unsigned char fast = atsci_randomizer::fast_output_map(i); - CPPUNIT_ASSERT_EQUAL (slow, fast); - } -} - -void -qa_atsci_randomizer::t1_initial_states () -{ - // LFSR should start with expected states - - for (unsigned int i = 0; i < NELEMENTS (expected_initial_values); i++){ - unsigned int got = randomizer.state(); - randomizer.clk (); - CPPUNIT_ASSERT_EQUAL (expected_initial_states[i], got); - } -} - -void -qa_atsci_randomizer::t2_initial_values () -{ - // LFSR should start with expected values - - for (unsigned int i = 0; i < NELEMENTS (expected_initial_values); i++){ - unsigned char got = randomizer.output_and_clk (); - CPPUNIT_ASSERT_EQUAL (expected_initial_values[i], got); - } -} - -void -qa_atsci_randomizer::t3_reset () -{ - // LFSR should start with expected values - - for (unsigned int i = 0; i < NELEMENTS (expected_initial_values); i++){ - unsigned char got = randomizer.output_and_clk (); - CPPUNIT_ASSERT_EQUAL (expected_initial_values[i], got); - } - - randomizer.reset (); // reset LFSR - - // and now should repeat expected values - - for (unsigned int i = 0; i < NELEMENTS (expected_initial_values); i++){ - unsigned char got = randomizer.output_and_clk (); - CPPUNIT_ASSERT_EQUAL (expected_initial_values[i], got); - } -} - -void -qa_atsci_randomizer::t4_high_level () -{ - static const int N = 5; - - atsc_mpeg_packet in[N]; - atsc_mpeg_packet_no_sync middle[N]; - atsc_mpeg_packet out[N]; - - memset (in, 0, sizeof (in)); - memset (middle, 0, sizeof (middle)); - memset (out, 0, sizeof (out)); - - // setup input test data - - int counter = 0xff; - for (int n = 0; n < N; n++){ - in[n].data[0] = MPEG_SYNC_BYTE; - for (int i = 0; i < ATSC_MPEG_DATA_LENGTH; i++) - in[n].data[i + 1] = counter++; - } - - // randomize N packets - - for (int n = 0; n < N; n++) - randomizer.randomize (middle[n], in[n]); - - // reset LFSR and derandomize N packets - - randomizer.reset (); // reset LFSR - - for (int n = 0; n < N; n++) - randomizer.derandomize (out[n], middle[n]); - - // compare packets - - for (int n = 0; n < N; n++){ - CPPUNIT_ASSERT (in[n] == out[n]); - } -} - |