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comparison spandsp-0.0.3/spandsp-0.0.3/tests/v42_tests.c @ 5:f762bf195c4b

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import spandsp-0.0.3
author Peter Meerwald <pmeerw@cosy.sbg.ac.at>
date Fri, 25 Jun 2010 16:00:21 +0200
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4:26cd8f1ef0b1 5:f762bf195c4b
1 /*
2 * SpanDSP - a series of DSP components for telephony
3 *
4 * v42_tests.c
5 *
6 * Written by Steve Underwood <steveu@coppice.org>
7 *
8 * Copyright (C) 2004 Steve Underwood
9 *
10 * All rights reserved.
11 *
12 * This program is free software; you can redistribute it and/or modify
13 * it under the terms of the GNU General Public License version 2, as
14 * published by the Free Software Foundation.
15 *
16 * This program is distributed in the hope that it will be useful,
17 * but WITHOUT ANY WARRANTY; without even the implied warranty of
18 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19 * GNU General Public License for more details.
20 *
21 * You should have received a copy of the GNU General Public License
22 * along with this program; if not, write to the Free Software
23 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
24 *
25 * $Id: v42_tests.c,v 1.19 2006/11/19 14:07:28 steveu Exp $
26 */
27
28 /* THIS IS A WORK IN PROGRESS. IT IS NOT FINISHED. */
29
30 /*! \page v42_tests_page V.42 tests
31 \section v42_tests_page_sec_1 What does it do?
32 These tests connect two instances of V.42 back to back. V.42 frames are
33 then exchanged between them.
34 */
35
36 #ifdef HAVE_CONFIG_H
37 #include <config.h>
38 #endif
39
40 #include <stdio.h>
41 #include <inttypes.h>
42 #include <stdlib.h>
43 #include <string.h>
44 #if defined(HAVE_TGMATH_H)
45 #include <tgmath.h>
46 #endif
47 #if defined(HAVE_MATH_H)
48 #include <math.h>
49 #endif
50 #include <assert.h>
51 #include <tiffio.h>
52
53 #include "spandsp.h"
54
55 v42_state_t caller;
56 v42_state_t answerer;
57
58 int rx_next[3] = {0};
59 int tx_next[3] = {0};
60
61 static void v42_status(void *user_data, int status)
62 {
63 int x;
64
65 x = (intptr_t) user_data;
66 printf("%d: Status is '%s' (%d)\n", x, lapm_status_to_str(status), status);
67 //if (status == LAPM_DATA)
68 // lapm_tx_iframe((x == 1) ? &caller.lapm : &answerer.lapm, "ABCDEFGHIJ", 10, 1);
69 }
70
71 static void v42_frames(void *user_data, const uint8_t *msg, int len)
72 {
73 int i;
74 int x;
75
76 x = (intptr_t) user_data;
77 for (i = 0; i < len; i++)
78 {
79 if (msg[i] != (rx_next[x] & 0xFF))
80 printf("%d: Mismatch 0x%02X 0x%02X\n", x, msg[i], rx_next[x] & 0xFF);
81 rx_next[x]++;
82 }
83 printf("%d: Got frame len %d\n", x, len);
84 }
85
86 int main(int argc, char *argv[])
87 {
88 int i;
89 int bit;
90 uint8_t buf[1024];
91
92 v42_init(&caller, TRUE, TRUE, v42_frames, (void *) 1);
93 v42_init(&answerer, FALSE, TRUE, v42_frames, (void *) 2);
94 v42_set_status_callback(&caller, v42_status, (void *) 1);
95 v42_set_status_callback(&answerer, v42_status, (void *) 2);
96 span_log_set_level(&caller.logging, SPAN_LOG_SHOW_SEVERITY | SPAN_LOG_SHOW_PROTOCOL | SPAN_LOG_FLOW);
97 span_log_set_tag(&caller.logging, "caller");
98 span_log_set_level(&caller.lapm.logging, SPAN_LOG_SHOW_SEVERITY | SPAN_LOG_SHOW_PROTOCOL | SPAN_LOG_FLOW);
99 span_log_set_tag(&caller.lapm.logging, "caller");
100 span_log_set_level(&answerer.logging, SPAN_LOG_SHOW_SEVERITY | SPAN_LOG_SHOW_PROTOCOL | SPAN_LOG_FLOW);
101 span_log_set_tag(&answerer.logging, "answerer");
102 span_log_set_level(&answerer.lapm.logging, SPAN_LOG_SHOW_SEVERITY | SPAN_LOG_SHOW_PROTOCOL | SPAN_LOG_FLOW);
103 span_log_set_tag(&answerer.lapm.logging, "answerer");
104 for (i = 0; i < 100000; i++)
105 {
106 bit = v42_tx_bit(&caller);
107 v42_rx_bit(&answerer, bit);
108 bit = v42_tx_bit(&answerer);
109 if (i%10000 == 0)
110 bit ^= 1;
111 v42_rx_bit(&caller, bit);
112 span_schedule_update(&caller.lapm.sched, 4);
113 span_schedule_update(&answerer.lapm.sched, 4);
114 buf[0] = tx_next[1];
115 if (lapm_tx(&caller.lapm, buf, 1) == 1)
116 tx_next[1]++;
117 buf[0] = tx_next[2];
118 if (lapm_tx(&answerer.lapm, buf, 1) == 1)
119 tx_next[2]++;
120 }
121 return 0;
122 }
123 /*- End of function --------------------------------------------------------*/
124 /*- End of file ------------------------------------------------------------*/

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