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freeswitch/libs/spandsp/tests/bert_tests.c

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/*
* SpanDSP - a series of DSP components for telephony
*
* bert_tests.c - Tests for the BER tester.
*
* Written by Steve Underwood <steveu@coppice.org>
*
* Copyright (C) 2004 Steve Underwood
*
* All rights reserved.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2, as
* published by the Free Software Foundation.
*
* This program 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 this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*
* $Id: bert_tests.c,v 1.28 2009/05/30 15:23:13 steveu Exp $
*/
/*! \file */
/*! \page bert_tests_page BERT tests
\section bert_tests_page_sec_1 What does it do?
These tests exercise each of the BERT standards supported by the BERT module.
*/
#if defined(HAVE_CONFIG_H)
#include "config.h"
#endif
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <assert.h>
#include <sndfile.h>
//#if defined(WITH_SPANDSP_INTERNALS)
#define SPANDSP_EXPOSE_INTERNAL_STRUCTURES
//#endif
#include "spandsp.h"
/* Use a local random generator, so the results are consistent across platforms */
static int my_rand(void)
{
static int rndnum = 1234567;
return (rndnum = 1664525U*rndnum + 1013904223U);
}
/*- End of function --------------------------------------------------------*/
static void reporter(void *user_data, int reason, bert_results_t *results)
{
int channel;
channel = (int) (intptr_t) user_data;
printf("BERT report '%s' ", bert_event_to_str(reason));
switch (reason)
{
case BERT_REPORT_REGULAR:
printf("%d bits, %d bad bits, %d resyncs", results->total_bits, results->bad_bits, results->resyncs);
break;
}
printf("\r");
}
/*- End of function --------------------------------------------------------*/
int8_t test[0x800000];
int main(int argc, char *argv[])
{
bert_state_t tx_bert;
bert_state_t rx_bert;
bert_state_t bert;
bert_results_t bert_results;
int i;
int bit;
int zeros;
int max_zeros;
int failed;
bert_init(&tx_bert, 0, BERT_PATTERN_ZEROS, 300, 20);
bert_init(&rx_bert, 0, BERT_PATTERN_ZEROS, 300, 20);
for (i = 0; i < 511*2; i++)
{
bit = bert_get_bit(&tx_bert);
bert_put_bit(&rx_bert, bit);
}
bert_result(&rx_bert, &bert_results);
printf("Zeros: Bad bits %d/%d\n", bert_results.bad_bits, bert_results.total_bits);
if (bert_results.bad_bits || bert_results.total_bits != 950)
{
printf("Test failed.\n");
exit(2);
}
bert_init(&tx_bert, 0, BERT_PATTERN_ONES, 300, 20);
bert_init(&rx_bert, 0, BERT_PATTERN_ONES, 300, 20);
for (i = 0; i < 511*2; i++)
{
bit = bert_get_bit(&tx_bert);
bert_put_bit(&rx_bert, bit);
}
bert_result(&rx_bert, &bert_results);
printf("Ones: Bad bits %d/%d\n", bert_results.bad_bits, bert_results.total_bits);
if (bert_results.bad_bits || bert_results.total_bits != 950)
{
printf("Test failed.\n");
exit(2);
}
bert_init(&tx_bert, 0, BERT_PATTERN_1_TO_7, 300, 20);
bert_init(&rx_bert, 0, BERT_PATTERN_1_TO_7, 300, 20);
for (i = 0; i < 511*2; i++)
{
bit = bert_get_bit(&tx_bert);
bert_put_bit(&rx_bert, bit);
}
bert_result(&rx_bert, &bert_results);
printf("1 to 7: Bad bits %d/%d\n", bert_results.bad_bits, bert_results.total_bits);
if (bert_results.bad_bits || bert_results.total_bits != 950)
{
printf("Test failed.\n");
exit(2);
}
bert_init(&tx_bert, 0, BERT_PATTERN_1_TO_3, 300, 20);
bert_init(&rx_bert, 0, BERT_PATTERN_1_TO_3, 300, 20);
for (i = 0; i < 511*2; i++)
{
bit = bert_get_bit(&tx_bert);
bert_put_bit(&rx_bert, bit);
}
bert_result(&rx_bert, &bert_results);
printf("1 to 3: Bad bits %d/%d\n", bert_results.bad_bits, bert_results.total_bits);
if (bert_results.bad_bits || bert_results.total_bits != 950)
{
printf("Test failed.\n");
exit(2);
}
bert_init(&tx_bert, 0, BERT_PATTERN_1_TO_1, 300, 20);
bert_init(&rx_bert, 0, BERT_PATTERN_1_TO_1, 300, 20);
for (i = 0; i < 511*2; i++)
{
bit = bert_get_bit(&tx_bert);
bert_put_bit(&rx_bert, bit);
}
bert_result(&rx_bert, &bert_results);
printf("1 to 1: Bad bits %d/%d\n", bert_results.bad_bits, bert_results.total_bits);
if (bert_results.bad_bits || bert_results.total_bits != 950)
{
printf("Test failed.\n");
exit(2);
}
bert_init(&tx_bert, 0, BERT_PATTERN_3_TO_1, 300, 20);
bert_init(&rx_bert, 0, BERT_PATTERN_3_TO_1, 300, 20);
for (i = 0; i < 511*2; i++)
{
bit = bert_get_bit(&tx_bert);
bert_put_bit(&rx_bert, bit);
}
bert_result(&rx_bert, &bert_results);
printf("3 to 1: Bad bits %d/%d\n", bert_results.bad_bits, bert_results.total_bits);
if (bert_results.bad_bits || bert_results.total_bits != 950)
{
printf("Test failed.\n");
exit(2);
}
bert_init(&tx_bert, 0, BERT_PATTERN_7_TO_1, 300, 20);
bert_init(&rx_bert, 0, BERT_PATTERN_7_TO_1, 300, 20);
for (i = 0; i < 511*2; i++)
{
bit = bert_get_bit(&tx_bert);
bert_put_bit(&rx_bert, bit);
}
bert_result(&rx_bert, &bert_results);
printf("7 to 1: Bad bits %d/%d\n", bert_results.bad_bits, bert_results.total_bits);
if (bert_results.bad_bits || bert_results.total_bits != 950)
{
printf("Test failed.\n");
exit(2);
}
bert_init(&tx_bert, 0, BERT_PATTERN_ITU_O153_9, 300, 20);
bert_init(&rx_bert, 0, BERT_PATTERN_ITU_O153_9, 300, 20);
for (i = 0; i < 0x200; i++)
test[i] = 0;
max_zeros = 0;
zeros = 0;
for (i = 0; i < 511*2; i++)
{
bit = bert_get_bit(&tx_bert);
if (bit)
{
if (zeros > max_zeros)
max_zeros = zeros;
zeros = 0;
}
else
{
zeros++;
}
bert_put_bit(&rx_bert, bit);
test[tx_bert.tx.reg]++;
}
failed = FALSE;
if (test[0] != 0)
{
printf("XXX %d %d\n", 0, test[0]);
failed = TRUE;
}
for (i = 1; i < 0x200; i++)
{
if (test[i] != 2)
{
printf("XXX %d %d\n", i, test[i]);
failed = TRUE;
}
}
bert_result(&rx_bert, &bert_results);
printf("O.153(9): Bad bits %d/%d, max zeros %d\n", bert_results.bad_bits, bert_results.total_bits, max_zeros);
if (bert_results.bad_bits || bert_results.total_bits != 986 || failed)
{
printf("Test failed.\n");
exit(2);
}
bert_init(&tx_bert, 0, BERT_PATTERN_ITU_O152_11, 300, 20);
bert_init(&rx_bert, 0, BERT_PATTERN_ITU_O152_11, 300, 20);
for (i = 0; i < 0x800; i++)
test[i] = 0;
max_zeros = 0;
zeros = 0;
for (i = 0; i < 2047*2; i++)
{
bit = bert_get_bit(&tx_bert);
if (bit)
{
if (zeros > max_zeros)
max_zeros = zeros;
zeros = 0;
}
else
{
zeros++;
}
bert_put_bit(&rx_bert, bit);
test[tx_bert.tx.reg]++;
}
failed = FALSE;
if (test[0] != 0)
{
printf("XXX %d %d\n", 0, test[0]);
failed = TRUE;
}
for (i = 1; i < 0x800; i++)
{
if (test[i] != 2)
{
printf("XXX %d %d\n", i, test[i]);
failed = TRUE;
}
}
bert_result(&rx_bert, &bert_results);
printf("O.152(11): Bad bits %d/%d, max zeros %d\n", bert_results.bad_bits, bert_results.total_bits, max_zeros);
if (bert_results.bad_bits || bert_results.total_bits != 4052 || failed)
{
printf("Test failed.\n");
exit(2);
}
bert_init(&tx_bert, 0, BERT_PATTERN_ITU_O151_15, 300, 20);
bert_init(&rx_bert, 0, BERT_PATTERN_ITU_O151_15, 300, 20);
for (i = 0; i < 0x8000; i++)
test[i] = 0;
max_zeros = 0;
zeros = 0;
for (i = 0; i < 32767*2; i++)
{
bit = bert_get_bit(&tx_bert);
if (bit)
{
if (zeros > max_zeros)
max_zeros = zeros;
zeros = 0;
}
else
{
zeros++;
}
bert_put_bit(&rx_bert, bit);
test[tx_bert.tx.reg]++;
}
failed = FALSE;
if (test[0] != 0)
{
printf("XXX %d %d\n", 0, test[0]);
failed = TRUE;
}
for (i = 1; i < 0x8000; i++)
{
if (test[i] != 2)
{
printf("XXX %d %d\n", i, test[i]);
failed = TRUE;
}
}
bert_result(&rx_bert, &bert_results);
printf("O.151(15): Bad bits %d/%d, max zeros %d\n", bert_results.bad_bits, bert_results.total_bits, max_zeros);
if (bert_results.bad_bits || bert_results.total_bits != 65480 || failed)
{
printf("Test failed.\n");
exit(2);
}
bert_init(&tx_bert, 0, BERT_PATTERN_ITU_O151_20, 300, 20);
bert_init(&rx_bert, 0, BERT_PATTERN_ITU_O151_20, 300, 20);
for (i = 0; i < 0x100000; i++)
test[i] = 0;
max_zeros = 0;
zeros = 0;
for (i = 0; i < 1048575*2; i++)
{
bit = bert_get_bit(&tx_bert);
if (bit)
{
if (zeros > max_zeros)
max_zeros = zeros;
zeros = 0;
}
else
{
zeros++;
}
bert_put_bit(&rx_bert, bit);
test[tx_bert.tx.reg]++;
}
failed = FALSE;
if (test[0] != 0)
{
printf("XXX %d %d\n", 0, test[0]);
failed = TRUE;
}
for (i = 1; i < 0x100000; i++)
{
if (test[i] != 2)
printf("XXX %d %d\n", i, test[i]);
}
bert_result(&rx_bert, &bert_results);
printf("O.151(20): Bad bits %d/%d, max zeros %d\n", bert_results.bad_bits, bert_results.total_bits, max_zeros);
if (bert_results.bad_bits || bert_results.total_bits != 2097066 || failed)
{
printf("Test failed.\n");
exit(2);
}
bert_init(&tx_bert, 0, BERT_PATTERN_ITU_O151_23, 300, 20);
bert_init(&rx_bert, 0, BERT_PATTERN_ITU_O151_23, 300, 20);
for (i = 0; i < 0x800000; i++)
test[i] = 0;
max_zeros = 0;
zeros = 0;
for (i = 0; i < 8388607*2; i++)
{
bit = bert_get_bit(&tx_bert);
if (bit)
{
if (zeros > max_zeros)
max_zeros = zeros;
zeros = 0;
}
else
{
zeros++;
}
bert_put_bit(&rx_bert, bit);
test[tx_bert.tx.reg]++;
}
failed = FALSE;
if (test[0] != 0)
{
printf("XXX %d %d\n", 0, test[0]);
failed = TRUE;
}
for (i = 1; i < 0x800000; i++)
{
if (test[i] != 2)
printf("XXX %d %d\n", i, test[i]);
}
bert_result(&rx_bert, &bert_results);
printf("O.151(23): Bad bits %d/%d, max zeros %d\n", bert_results.bad_bits, bert_results.total_bits, max_zeros);
if (bert_results.bad_bits || bert_results.total_bits != 16777136 || failed)
{
printf("Test failed.\n");
exit(2);
}
bert_init(&tx_bert, 0, BERT_PATTERN_QBF, 300, 20);
bert_init(&rx_bert, 0, BERT_PATTERN_QBF, 300, 20);
for (i = 0; i < 100000; i++)
{
bit = bert_get_bit(&tx_bert);
bert_put_bit(&rx_bert, bit);
}
bert_result(&rx_bert, &bert_results);
printf("QBF: Bad bits %d/%d\n", bert_results.bad_bits, bert_results.total_bits);
if (bert_results.bad_bits || bert_results.total_bits != 100000)
{
printf("Test failed.\n");
exit(2);
}
/* Test the mechanism for categorising the error rate into <10^x bands */
/* TODO: The result of this test is not checked automatically */
bert_init(&bert, 15000000, BERT_PATTERN_ITU_O152_11, 300, 20);
bert_set_report(&bert, 100000, reporter, (intptr_t) 0);
for (;;)
{
if ((bit = bert_get_bit(&bert)) == SIG_STATUS_END_OF_DATA)
{
bert_result(&bert, &bert_results);
printf("Rate test: %d bits, %d bad bits, %d resyncs\n", bert_results.total_bits, bert_results.bad_bits, bert_results.resyncs);
if (bert_results.total_bits != 15000000 - 42
||
bert_results.bad_bits != 58
||
bert_results.resyncs != 0)
{
printf("Tests failed\n");
exit(2);
}
break;
//bert_init(&bert, 15000000, BERT_PATTERN_ITU_O152_11, 300, 20);
//bert_set_report(&bert, 100000, reporter, (intptr_t) 0);
//continue;
}
if ((my_rand() & 0x3FFFF) == 0)
bit ^= 1;
//if ((my_rand() & 0xFFF) == 0)
// bert_put_bit(&bert, bit);
bert_put_bit(&bert, bit);
}
printf("Tests passed.\n");
return 0;
}
/*- End of function --------------------------------------------------------*/
/*- End of file ------------------------------------------------------------*/
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