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freeswitch/libs/spandsp/tests/t31_tests.c

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/*
* SpanDSP - a series of DSP components for telephony
*
* t31_tests.c - Tests for the T.31 modem.
*
* 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: t31_tests.c,v 1.72 2009/05/30 15:23:14 steveu Exp $
*/
/*! \file */
/*! \page t31_tests_page T.31 tests
\section t31_tests_page_sec_1 What does it do?
*/
/* Enable the following definition to enable direct probing into the FAX structures */
//#define WITH_SPANDSP_INTERNALS
#if defined(HAVE_CONFIG_H)
#include "config.h"
#endif
#if defined(HAVE_FL_FL_H) && defined(HAVE_FL_FL_CARTESIAN_H) && defined(HAVE_FL_FL_AUDIO_METER_H)
#define ENABLE_GUI
#endif
#include <stdlib.h>
#include <stdio.h>
#include <fcntl.h>
#include <unistd.h>
#include <string.h>
#include <assert.h>
#include <sndfile.h>
//#if defined(WITH_SPANDSP_INTERNALS)
#define SPANDSP_EXPOSE_INTERNAL_STRUCTURES
//#endif
#include "spandsp.h"
#include "spandsp/t30_fcf.h"
#include "spandsp-sim.h"
#if defined(ENABLE_GUI)
#include "media_monitor.h"
#endif
#include "fax_utils.h"
#define INPUT_FILE_NAME "../test-data/itu/fax/itu1.tif"
#define OUTPUT_FILE_NAME "t31.tif"
#define OUTPUT_WAVE_FILE_NAME "t31_tests.wav"
enum
{
ETX = 0x03,
DLE = 0x10,
SUB = 0x1A
};
#define MANUFACTURER "www.soft-switch.org"
#define SAMPLES_PER_CHUNK 160
struct command_response_s
{
const char *command;
int len_command;
const char *response;
int len_response;
};
g1050_state_t *path_a_to_b;
g1050_state_t *path_b_to_a;
double when = 0.0;
#define EXCHANGE(a,b) {a, sizeof(a) - 1, b, sizeof(b) - 1}
#define RESPONSE(b) {"", 0, b, sizeof(b) - 1}
#define FAST_RESPONSE(b) {NULL, -1, b, sizeof(b) - 1}
#define FAST_SEND(b) {(const char *) 1, -2, b, sizeof(b) - 1}
#define FAST_SEND_TCF(b) {(const char *) 2, -2, b, sizeof(b) - 1}
static const struct command_response_s fax_send_test_seq[] =
{
EXCHANGE("ATE0\r", "ATE0\r\r\nOK\r\n"),
EXCHANGE("AT+FCLASS=1\r", "\r\nOK\r\n"),
EXCHANGE("ATD123456789\r", "\r\nCONNECT\r\n"),
//<NSF frame> AT+FRH=3 is implied when dialing in the AT+FCLASS=1 state
//RESPONSE("\xFF\x03\x10\x03"),
//RESPONSE("\r\nOK\r\n"),
//EXCHANGE("AT+FRH=3\r", "\r\nCONNECT\r\n"),
//<CSI frame data>
RESPONSE("\xFF\x03\x40\x31\x31\x31\x31\x31\x31\x31\x31\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x1e\x46\x10\x03"),
RESPONSE("\r\nOK\r\n"),
EXCHANGE("AT+FRH=3\r", "\r\nCONNECT\r\n"),
//<DIS frame data>
RESPONSE("\xFF\x13\x80\x00\xEE\xF8\x80\x80\x91\x80\x80\x80\x18\x78\x57\x10\x03"), // For audio FAXing
//RESPONSE("\xFF\x13\x80\x04\xEE\xF8\x80\x80\x91\x80\x80\x80\x18\xE4\xE7\x10\x03"), // For T.38 FAXing
RESPONSE("\r\nOK\r\n"),
//EXCHANGE("AT+FRH=3\r", "\r\nNO CARRIER\r\n"),
EXCHANGE("AT+FTH=3\r", "\r\nCONNECT\r\n"),
//<TSI frame data>
EXCHANGE("\xFF\x03\x43\x32\x32\x32\x32\x32\x32\x32\x32\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x10\x03", "\r\nCONNECT\r\n"),
//<DCS frame data>
EXCHANGE("\xFF\x13\x83\x01\xC6\x80\x80\x80\x80\x01\xFD\x13\x10\x03", "\r\nOK\r\n"),
//Do a wait for timed silence at this point, or there won't be one in the tests
EXCHANGE("AT+FRS=7\r", "\r\nOK\r\n"),
//EXCHANGE("AT+FTS=8;+FTM=96\r", "\r\nCONNECT\r\n"),
EXCHANGE("AT+FTS=8\r", "\r\nOK\r\n"),
EXCHANGE("AT+FTM=96\r", "\r\nCONNECT\r\n"),
//<TCF data pattern>
FAST_SEND_TCF("\r\nOK\r\n"),
EXCHANGE("AT+FRH=3\r", "\r\nCONNECT\r\n"),
//<CFR frame data>
RESPONSE("\xFF\x13\x84\xEA\x7D\x10\x03"),
RESPONSE("\r\nOK\r\n"),
EXCHANGE("AT+FTM=96\r", "\r\nCONNECT\r\n"),
//<page image data>
FAST_SEND("\r\nOK\r\n"),
//EXCHANGE("AT+FTS=8;+FTH=3\r", "\r\nCONNECT\r\n"),
EXCHANGE("AT+FTS=8\r", "\r\nOK\r\n"),
EXCHANGE("AT+FTH=3\r", "\r\nCONNECT\r\n"),
//<EOP frame data>
EXCHANGE("\xFF\x13\x2E\x10\x03", "\r\nOK\r\n"),
EXCHANGE("AT+FRH=3\r", "\r\nCONNECT\r\n"),
//<MCF frame data>
RESPONSE("\xFF\x13\x8C\xA2\xF1\x10\x03"),
RESPONSE("\r\nOK\r\n"),
EXCHANGE("AT+FTH=3\r", "\r\nCONNECT\r\n"),
// <DCN frame data>
EXCHANGE("\xFF\x13\xFB\x10\x03", "\r\nOK\r\n"),
EXCHANGE("ATH0\r", "\r\nOK\r\n")
};
static const struct command_response_s fax_receive_test_seq[] =
{
EXCHANGE("ATE0\r", "ATE0\r\r\nOK\r\n"),
EXCHANGE("AT+FCLASS=1\r", "\r\nOK\r\n"),
RESPONSE("\r\nRING\r\n"),
EXCHANGE("ATA\r", "\r\nCONNECT\r\n"),
//<CSI frame data>
EXCHANGE("\xFF\x03\x40\x32\x32\x32\x32\x32\x32\x32\x32\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x10\x03", "\r\nCONNECT\r\n"),
//<DIS frame data>
EXCHANGE("\xFF\x13\x80\x01\xCE\xF4\x80\x80\x81\x80\x80\x80\x18\x10\x03", "\r\nOK\r\n"),
EXCHANGE("AT+FRH=3\r", "\r\nCONNECT\r\n"),
//<TSI frame data>
RESPONSE("\xFF\x03\x43\x31\x31\x31\x31\x31\x31\x31\x31\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\x20\xAA\x1F\x10\x03"),
RESPONSE("\r\nOK\r\n"),
EXCHANGE("AT+FRH=3\r", "\r\nCONNECT\r\n"),
//<DCS frame data>
RESPONSE("\xFF\x13\x83\x00\xC6\x74\x53\x00\x10\x03"),
RESPONSE("\r\nOK\r\n"),
EXCHANGE("AT+FRM=96\r", "\r\nCONNECT\r\n"),
//<TCF data>
FAST_RESPONSE(NULL),
RESPONSE("\r\nNO CARRIER\r\n"),
EXCHANGE("AT+FTH=3\r", "\r\nCONNECT\r\n"),
//<CFR frame data>
EXCHANGE("\xFF\x13\x84\x10\x03", "\r\nOK\r\n"),
EXCHANGE("AT+FRM=96\r", "\r\nCONNECT\r\n"),
//<page image data>
FAST_RESPONSE(NULL),
RESPONSE("\r\nNO CARRIER\r\n"),
EXCHANGE("AT+FRH=3\r", "\r\nCONNECT\r\n"),
//<EOP frame data>
RESPONSE("\xFF\x13\x2F\x33\x66\x10\x03"),
RESPONSE("\r\nOK\r\n"),
EXCHANGE("AT+FTH=3\r", "\r\nCONNECT\r\n"),
//<MCF frame data>
EXCHANGE("\xFF\x13\x8C\x10\x03", "\r\nOK\r\n"),
EXCHANGE("AT+FRH=3\r", "\r\nCONNECT\r\n"),
//<DCN frame data>
RESPONSE("\xFF\x13\xfb\x9a\xf6\x10\x03"),
RESPONSE("\r\nOK\r\n"),
EXCHANGE("ATH0\r", "\r\nOK\r\n")
};
char *decode_test_file = NULL;
int countdown = 0;
int command_response_test_step = -1;
char response_buf[1000];
int response_buf_ptr = 0;
int answered = FALSE;
int kick = FALSE;
int dled = FALSE;
int done = FALSE;
static const struct command_response_s *fax_test_seq;
int test_seq_ptr = 0;
t31_state_t *t31_state;
static int phase_b_handler(t30_state_t *s, void *user_data, int result)
{
int i;
char tag[20];
i = (int) (intptr_t) user_data;
snprintf(tag, sizeof(tag), "%c: Phase B:", i);
printf("%c: Phase B handler on channel %c - (0x%X) %s\n", i, i, result, t30_frametype(result));
log_rx_parameters(s, tag);
return T30_ERR_OK;
}
/*- End of function --------------------------------------------------------*/
static int phase_d_handler(t30_state_t *s, void *user_data, int result)
{
int i;
char tag[20];
i = (int) (intptr_t) user_data;
snprintf(tag, sizeof(tag), "%c: Phase D:", i);
printf("%c: Phase D handler on channel %c - (0x%X) %s\n", i, i, result, t30_frametype(result));
log_transfer_statistics(s, tag);
log_tx_parameters(s, tag);
log_rx_parameters(s, tag);
return T30_ERR_OK;
}
/*- End of function --------------------------------------------------------*/
static void phase_e_handler(t30_state_t *s, void *user_data, int result)
{
int i;
char tag[20];
i = (intptr_t) user_data;
snprintf(tag, sizeof(tag), "%c: Phase E:", i);
printf("Phase E handler on channel %c\n", i);
log_transfer_statistics(s, tag);
log_tx_parameters(s, tag);
log_rx_parameters(s, tag);
//exit(0);
}
/*- End of function --------------------------------------------------------*/
static int modem_call_control(t31_state_t *s, void *user_data, int op, const char *num)
{
switch (op)
{
case AT_MODEM_CONTROL_ANSWER:
printf("\nModem control - Answering\n");
answered = TRUE;
break;
case AT_MODEM_CONTROL_CALL:
printf("\nModem control - Dialing '%s'\n", num);
t31_call_event(t31_state, AT_CALL_EVENT_CONNECTED);
break;
case AT_MODEM_CONTROL_HANGUP:
printf("\nModem control - Hanging up\n");
done = TRUE;
break;
case AT_MODEM_CONTROL_OFFHOOK:
printf("\nModem control - Going off hook\n");
break;
case AT_MODEM_CONTROL_DTR:
printf("\nModem control - DTR %d\n", (int) (intptr_t) num);
break;
case AT_MODEM_CONTROL_RTS:
printf("\nModem control - RTS %d\n", (int) (intptr_t) num);
break;
case AT_MODEM_CONTROL_CTS:
printf("\nModem control - CTS %d\n", (int) (intptr_t) num);
break;
case AT_MODEM_CONTROL_CAR:
printf("\nModem control - CAR %d\n", (int) (intptr_t) num);
break;
case AT_MODEM_CONTROL_RNG:
printf("\nModem control - RNG %d\n", (int) (intptr_t) num);
break;
case AT_MODEM_CONTROL_DSR:
printf("\nModem control - DSR %d\n", (int) (intptr_t) num);
break;
default:
printf("\nModem control - operation %d\n", op);
break;
}
/*endswitch*/
return 0;
}
/*- End of function --------------------------------------------------------*/
static int at_tx_handler(at_state_t *s, void *user_data, const uint8_t *buf, size_t len)
{
size_t i;
i = 0;
if (fax_test_seq[test_seq_ptr].command == NULL)
{
/* TCF or non-ECM image data expected */
for ( ; i < len; i++)
{
if (dled)
{
if (buf[i] == ETX)
{
printf("\nFast data ended\n");
response_buf_ptr = 0;
response_buf[response_buf_ptr] = '\0';
test_seq_ptr++;
if (fax_test_seq[test_seq_ptr].command)
kick = TRUE;
break;
}
dled = FALSE;
}
else
{
if (buf[i] == DLE)
dled = TRUE;
}
}
i++;
if (i >= len)
return 0;
}
for ( ; i < len; i++)
{
response_buf[response_buf_ptr++] = buf[i];
putchar(buf[i]);
}
response_buf[response_buf_ptr] = '\0';
printf("Expected ");
for (i = 0; i < response_buf_ptr; i++)
printf("%02x ", fax_test_seq[test_seq_ptr].response[i] & 0xFF);
printf("\n");
printf("Response ");
for (i = 0; i < response_buf_ptr; i++)
printf("%02x ", response_buf[i] & 0xFF);
printf("\n");
printf("Match %d against %d\n", response_buf_ptr, fax_test_seq[test_seq_ptr].len_response);
if (response_buf_ptr >= fax_test_seq[test_seq_ptr].len_response
&&
memcmp(fax_test_seq[test_seq_ptr].response, response_buf, fax_test_seq[test_seq_ptr].len_response) == 0)
{
printf("\nMatched\n");
test_seq_ptr++;
response_buf_ptr = 0;
response_buf[response_buf_ptr] = '\0';
if (fax_test_seq[test_seq_ptr].command)
kick = TRUE;
else
dled = FALSE;
}
return 0;
}
/*- End of function --------------------------------------------------------*/
static int t38_tx_packet_handler(t38_core_state_t *s, void *user_data, const uint8_t *buf, int len, int count)
{
t31_state_t *t;
int i;
/* This routine queues messages between two instances of T.38 processing */
t = (t31_state_t *) user_data;
span_log(&s->logging, SPAN_LOG_FLOW, "Send seq %d, len %d, count %d\n", s->tx_seq_no, len, count);
for (i = 0; i < count; i++)
{
if (g1050_put(path_a_to_b, buf, len, s->tx_seq_no, when) < 0)
printf("Lost packet %d\n", s->tx_seq_no);
}
return 0;
}
/*- End of function --------------------------------------------------------*/
static int t31_tx_packet_handler(t38_core_state_t *s, void *user_data, const uint8_t *buf, int len, int count)
{
//t38_terminal_state_t *t;
int i;
/* This routine queues messages between two instances of T.38 processing */
//t = (t38_terminal_state_t *) user_data;
span_log(&s->logging, SPAN_LOG_FLOW, "Send seq %d, len %d, count %d\n", s->tx_seq_no, len, count);
for (i = 0; i < count; i++)
{
if (g1050_put(path_b_to_a, buf, len, s->tx_seq_no, when) < 0)
printf("Lost packet %d\n", s->tx_seq_no);
}
return 0;
}
/*- End of function --------------------------------------------------------*/
static int t38_tests(int use_gui, int test_sending, int model_no, int speed_pattern_no)
{
t38_terminal_state_t *t38_state;
int fast_send;
int fast_send_tcf;
int fast_blocks;
uint8_t fast_buf[1000];
int msg_len;
uint8_t msg[1024];
int t38_version;
int without_pacing;
int use_tep;
int seq_no;
double tx_when;
double rx_when;
t30_state_t *t30;
t38_core_state_t *t38_core;
logging_state_t *logging;
int i;
t38_version = 1;
without_pacing = FALSE;
use_tep = FALSE;
srand48(0x1234567);
if ((path_a_to_b = g1050_init(model_no, speed_pattern_no, 100, 33)) == NULL)
{
fprintf(stderr, "Failed to start IP network path model\n");
exit(2);
}
if ((path_b_to_a = g1050_init(model_no, speed_pattern_no, 100, 33)) == NULL)
{
fprintf(stderr, "Failed to start IP network path model\n");
exit(2);
}
if ((t31_state = t31_init(NULL, at_tx_handler, NULL, modem_call_control, NULL, t31_tx_packet_handler, NULL)) == NULL)
{
fprintf(stderr, " Cannot start the T.31 T.38 modem\n");
exit(2);
}
logging = t31_get_logging_state(t31_state);
span_log_set_level(logging, SPAN_LOG_DEBUG | SPAN_LOG_SHOW_TAG | SPAN_LOG_SHOW_SAMPLE_TIME);
span_log_set_tag(logging, "T.31");
t38_core = t31_get_t38_core_state(t31_state);
span_log_set_level(&t38_core->logging, SPAN_LOG_DEBUG | SPAN_LOG_SHOW_TAG | SPAN_LOG_SHOW_SAMPLE_TIME);
span_log_set_tag(&t38_core->logging, "T.31");
span_log_set_level(&t31_state->at_state.logging, SPAN_LOG_DEBUG | SPAN_LOG_SHOW_TAG | SPAN_LOG_SHOW_SAMPLE_TIME);
span_log_set_tag(&t31_state->at_state.logging, "T.31");
t31_set_mode(t31_state, TRUE);
t38_set_t38_version(t38_core, t38_version);
if (test_sending)
{
if ((t38_state = t38_terminal_init(NULL, FALSE, t38_tx_packet_handler, t31_state)) == NULL)
{
fprintf(stderr, "Cannot start the T.38 channel\n");
exit(2);
}
t30 = t38_terminal_get_t30_state(t38_state);
t30_set_rx_file(t30, OUTPUT_FILE_NAME, -1);
fax_test_seq = fax_send_test_seq;
countdown = 0;
}
else
{
if ((t38_state = t38_terminal_init(NULL, TRUE, t38_tx_packet_handler, t31_state)) == NULL)
{
fprintf(stderr, "Cannot start the T.38 channel\n");
exit(2);
}
t30 = t38_terminal_get_t30_state(t38_state);
t30_set_tx_file(t30, INPUT_FILE_NAME, -1, -1);
fax_test_seq = fax_receive_test_seq;
countdown = 250;
}
t30 = t38_terminal_get_t30_state(t38_state);
t38_core = t38_terminal_get_t38_core_state(t38_state);
t38_set_t38_version(t38_core, t38_version);
t38_terminal_set_config(t38_state, without_pacing);
t38_terminal_set_tep_mode(t38_state, use_tep);
t30_set_tx_ident(t30, "11111111");
t30_set_supported_modems(t30, T30_SUPPORT_V27TER | T30_SUPPORT_V29 | T30_SUPPORT_V17);
//t30_set_tx_nsf(t30, (const uint8_t *) "\x50\x00\x00\x00Spandsp\x00", 12);
t30_set_phase_b_handler(t30, phase_b_handler, (void *) 'A');
t30_set_phase_d_handler(t30, phase_d_handler, (void *) 'A');
t30_set_phase_e_handler(t30, phase_e_handler, (void *) 'A');
logging = t38_terminal_get_logging_state(t38_state);
span_log_set_level(logging, SPAN_LOG_DEBUG | SPAN_LOG_SHOW_TAG | SPAN_LOG_SHOW_SAMPLE_TIME);
span_log_set_tag(logging, "T.38");
t38_core = t38_terminal_get_t38_core_state(t38_state);
span_log_set_level(&t38_core->logging, SPAN_LOG_DEBUG | SPAN_LOG_SHOW_TAG | SPAN_LOG_SHOW_SAMPLE_TIME);
span_log_set_tag(&t38_core->logging, "T.38");
logging = t30_get_logging_state(t30);
span_log_set_level(logging, SPAN_LOG_DEBUG | SPAN_LOG_SHOW_TAG | SPAN_LOG_SHOW_SAMPLE_TIME);
span_log_set_tag(logging, "T.38");
fast_send = FALSE;
fast_send_tcf = TRUE;
fast_blocks = 0;
kick = TRUE;
#if defined(ENABLE_GUI)
if (use_gui)
start_media_monitor();
#endif
while (!done)
{
logging = t38_terminal_get_logging_state(t38_state);
span_log_bump_samples(logging, SAMPLES_PER_CHUNK);
t38_core = t38_terminal_get_t38_core_state(t38_state);
logging = t38_core_get_logging_state(t38_core);
span_log_bump_samples(logging, SAMPLES_PER_CHUNK);
t30 = t38_terminal_get_t30_state(t38_state);
logging = t30_get_logging_state(t30);
span_log_bump_samples(logging, SAMPLES_PER_CHUNK);
logging = t31_get_logging_state(t31_state);
span_log_bump_samples(logging, SAMPLES_PER_CHUNK);
t38_core = t31_get_t38_core_state(t31_state);
logging = t38_core_get_logging_state(t38_core);
span_log_bump_samples(logging, SAMPLES_PER_CHUNK);
span_log_bump_samples(&t31_state->at_state.logging, SAMPLES_PER_CHUNK);
t38_terminal_send_timeout(t38_state, SAMPLES_PER_CHUNK);
t31_t38_send_timeout(t31_state, SAMPLES_PER_CHUNK);
when += (float) SAMPLES_PER_CHUNK/(float) SAMPLE_RATE;
if (kick)
{
kick = FALSE;
if (fax_test_seq[test_seq_ptr].command > (const char *) 2)
{
if (fax_test_seq[test_seq_ptr].command[0])
{
printf("%s\n", fax_test_seq[test_seq_ptr].command);
t31_at_rx(t31_state, fax_test_seq[test_seq_ptr].command, fax_test_seq[test_seq_ptr].len_command);
}
}
else
{
if (fax_test_seq[test_seq_ptr].command == (const char *) 2)
{
printf("Fast send TCF\n");
fast_send = TRUE;
fast_send_tcf = TRUE;
fast_blocks = 100;
}
else
{
printf("Fast send image\n");
fast_send = TRUE;
fast_send_tcf = FALSE;
fast_blocks = 100;
}
}
}
if (fast_send)
{
/* Send fast modem data */
if (fast_send_tcf)
{
memset(fast_buf, 0, 36);
}
else
{
if (fast_blocks == 1)
{
/* Create the end of page condition */
for (i = 0; i < 36; i += 2)
{
fast_buf[i] = 0x00;
fast_buf[i + 1] = 0x80;
}
}
else
{
/* Create a chunk of white page */
for (i = 0; i < 36; i += 4)
{
fast_buf[i] = 0x00;
fast_buf[i + 1] = 0x80;
fast_buf[i + 2] = 0xB2;
fast_buf[i + 3] = 0x01;
}
}
}
if (fast_blocks == 1)
{
/* Insert EOLs */
fast_buf[35] = ETX;
fast_buf[34] = DLE;
fast_buf[31] =
fast_buf[28] =
fast_buf[25] =
fast_buf[22] =
fast_buf[19] =
fast_buf[16] = 1;
}
t31_at_rx(t31_state, (char *) fast_buf, 36);
if (--fast_blocks == 0)
fast_send = FALSE;
}
if (countdown)
{
if (answered)
{
countdown = 0;
t31_call_event(t31_state, AT_CALL_EVENT_ANSWERED);
}
else if (--countdown == 0)
{
t31_call_event(t31_state, AT_CALL_EVENT_ALERTING);
countdown = 250;
}
}
while ((msg_len = g1050_get(path_a_to_b, msg, 1024, when, &seq_no, &tx_when, &rx_when)) >= 0)
{
#if defined(ENABLE_GUI)
if (use_gui)
media_monitor_rx(seq_no, tx_when, rx_when);
#endif
t38_core = t31_get_t38_core_state(t31_state);
t38_core_rx_ifp_packet(t38_core, msg, msg_len, seq_no);
}
while ((msg_len = g1050_get(path_b_to_a, msg, 1024, when, &seq_no, &tx_when, &rx_when)) >= 0)
{
#if defined(ENABLE_GUI)
if (use_gui)
media_monitor_rx(seq_no, tx_when, rx_when);
#endif
t38_core = t38_terminal_get_t38_core_state(t38_state);
t38_core_rx_ifp_packet(t38_core, msg, msg_len, seq_no);
}
#if defined(ENABLE_GUI)
if (use_gui)
media_monitor_update_display();
#endif
}
t38_terminal_release(t38_state);
return 0;
}
/*- End of function --------------------------------------------------------*/
static int t30_tests(int log_audio, int test_sending)
{
int k;
int outframes;
fax_state_t *fax_state;
int16_t t30_amp[SAMPLES_PER_CHUNK];
int16_t t31_amp[SAMPLES_PER_CHUNK];
int16_t silence[SAMPLES_PER_CHUNK];
int16_t out_amp[2*SAMPLES_PER_CHUNK];
int t30_len;
int t31_len;
SNDFILE *wave_handle;
SNDFILE *in_handle;
int fast_send;
int fast_send_tcf;
int fast_blocks;
uint8_t fast_buf[1000];
t30_state_t *t30;
logging_state_t *logging;
int i;
wave_handle = NULL;
if (log_audio)
{
if ((wave_handle = sf_open_telephony_write(OUTPUT_WAVE_FILE_NAME, 2)) == NULL)
{
fprintf(stderr, " Cannot create audio file '%s'\n", OUTPUT_WAVE_FILE_NAME);
exit(2);
}
}
memset(silence, 0, sizeof(silence));
in_handle = NULL;
if (decode_test_file)
{
if ((in_handle = sf_open_telephony_read(decode_test_file, 1)) == NULL)
{
fprintf(stderr, " Cannot create audio file '%s'\n", decode_test_file);
exit(2);
}
}
if ((t31_state = t31_init(NULL, at_tx_handler, NULL, modem_call_control, NULL, NULL, NULL)) == NULL)
{
fprintf(stderr, " Cannot start the T.31 FAX modem\n");
exit(2);
}
logging = t31_get_logging_state(t31_state);
span_log_set_level(logging, SPAN_LOG_DEBUG | SPAN_LOG_SHOW_TAG | SPAN_LOG_SHOW_SAMPLE_TIME);
span_log_set_tag(logging, "T.31");
if (test_sending)
{
fax_state = fax_init(NULL, FALSE);
t30 = fax_get_t30_state(fax_state);
t30_set_rx_file(t30, OUTPUT_FILE_NAME, -1);
fax_test_seq = fax_send_test_seq;
countdown = 0;
}
else
{
fax_state = fax_init(NULL, TRUE);
t30 = fax_get_t30_state(fax_state);
t30_set_tx_file(t30, INPUT_FILE_NAME, -1, -1);
fax_test_seq = fax_receive_test_seq;
countdown = 250;
}
t30_set_tx_ident(t30, "11111111");
t30_set_supported_modems(t30, T30_SUPPORT_V27TER | T30_SUPPORT_V29 | T30_SUPPORT_V17);
t30_set_phase_b_handler(t30, phase_b_handler, (void *) 'A');
t30_set_phase_d_handler(t30, phase_d_handler, (void *) 'A');
t30_set_phase_e_handler(t30, phase_e_handler, (void *) 'A');
memset(t30_amp, 0, sizeof(t30_amp));
logging = t30_get_logging_state(t30);
span_log_set_level(logging, SPAN_LOG_DEBUG | SPAN_LOG_SHOW_TAG | SPAN_LOG_SHOW_SAMPLE_TIME);
span_log_set_tag(logging, "FAX");
logging = fax_get_logging_state(fax_state);
span_log_set_level(logging, SPAN_LOG_DEBUG | SPAN_LOG_SHOW_TAG | SPAN_LOG_SHOW_SAMPLE_TIME);
span_log_set_tag(logging, "FAX");
fast_send = FALSE;
fast_send_tcf = TRUE;
fast_blocks = 0;
kick = TRUE;
while (!done)
{
if (kick)
{
kick = FALSE;
if (fax_test_seq[test_seq_ptr].command > (const char *) 2)
{
if (fax_test_seq[test_seq_ptr].command[0])
{
printf("%s\n", fax_test_seq[test_seq_ptr].command);
t31_at_rx(t31_state, fax_test_seq[test_seq_ptr].command, fax_test_seq[test_seq_ptr].len_command);
}
}
else
{
if (fax_test_seq[test_seq_ptr].command == (const char *) 2)
{
printf("Fast send TCF\n");
fast_send = TRUE;
fast_send_tcf = TRUE;
fast_blocks = 100;
}
else
{
printf("Fast send image\n");
fast_send = TRUE;
fast_send_tcf = FALSE;
fast_blocks = 100;
}
}
}
if (fast_send)
{
/* Send fast modem data */
if (fast_send_tcf)
{
memset(fast_buf, 0, 36);
}
else
{
if (fast_blocks == 1)
{
/* Create the end of page condition */
for (i = 0; i < 36; i += 2)
{
fast_buf[i] = 0x00;
fast_buf[i + 1] = 0x80;
}
}
else
{
/* Create a chunk of white page */
for (i = 0; i < 36; i += 4)
{
fast_buf[i] = 0x00;
fast_buf[i + 1] = 0x80;
fast_buf[i + 2] = 0xB2;
fast_buf[i + 3] = 0x01;
}
}
}
if (fast_blocks == 1)
{
/* Insert EOLs */
fast_buf[35] = ETX;
fast_buf[34] = DLE;
fast_buf[31] =
fast_buf[28] =
fast_buf[25] =
fast_buf[22] =
fast_buf[19] =
fast_buf[16] = 1;
}
t31_at_rx(t31_state, (char *) fast_buf, 36);
if (--fast_blocks == 0)
fast_send = FALSE;
}
t30_len = fax_tx(fax_state, t30_amp, SAMPLES_PER_CHUNK);
/* The receive side always expects a full block of samples, but the
transmit side may not be sending any when it doesn't need to. We
may need to pad with some silence. */
if (t30_len < SAMPLES_PER_CHUNK)
{
memset(t30_amp + t30_len, 0, sizeof(int16_t)*(SAMPLES_PER_CHUNK - t30_len));
t30_len = SAMPLES_PER_CHUNK;
}
if (log_audio)
{
for (k = 0; k < t30_len; k++)
out_amp[2*k] = t30_amp[k];
}
if (t31_rx(t31_state, t30_amp, t30_len))
break;
if (countdown)
{
if (answered)
{
countdown = 0;
t31_call_event(t31_state, AT_CALL_EVENT_ANSWERED);
}
else if (--countdown == 0)
{
t31_call_event(t31_state, AT_CALL_EVENT_ALERTING);
countdown = 250;
}
}
t31_len = t31_tx(t31_state, t31_amp, SAMPLES_PER_CHUNK);
if (t31_len < SAMPLES_PER_CHUNK)
{
memset(t31_amp + t31_len, 0, sizeof(int16_t)*(SAMPLES_PER_CHUNK - t31_len));
t31_len = SAMPLES_PER_CHUNK;
}
if (log_audio)
{
for (k = 0; k < t31_len; k++)
out_amp[2*k + 1] = t31_amp[k];
}
if (fax_rx(fax_state, t31_amp, SAMPLES_PER_CHUNK))
break;
span_log_bump_samples(&fax_state->logging, SAMPLES_PER_CHUNK);
span_log_bump_samples(&t30->logging, SAMPLES_PER_CHUNK);
if (log_audio)
{
outframes = sf_writef_short(wave_handle, out_amp, SAMPLES_PER_CHUNK);
if (outframes != SAMPLES_PER_CHUNK)
break;
}
}
if (decode_test_file)
{
if (sf_close(in_handle) != 0)
{
fprintf(stderr, " Cannot close audio file '%s'\n", decode_test_file);
exit(2);
}
}
if (log_audio)
{
if (sf_close(wave_handle) != 0)
{
fprintf(stderr, " Cannot close audio file '%s'\n", OUTPUT_WAVE_FILE_NAME);
exit(2);
}
}
return 0;
}
/*- End of function --------------------------------------------------------*/
int main(int argc, char *argv[])
{
int log_audio;
int t38_mode;
int test_sending;
int use_gui;
int opt;
decode_test_file = NULL;
log_audio = FALSE;
test_sending = FALSE;
t38_mode = FALSE;
use_gui = FALSE;
while ((opt = getopt(argc, argv, "d:glrst")) != -1)
{
switch (opt)
{
case 'd':
decode_test_file = optarg;
break;
case 'g':
#if defined(ENABLE_GUI)
use_gui = TRUE;
#else
fprintf(stderr, "Graphical monitoring not available\n");
exit(2);
#endif
break;
case 'l':
log_audio = TRUE;
break;
case 'r':
test_sending = FALSE;
break;
case 's':
test_sending = TRUE;
break;
case 't':
t38_mode = TRUE;
break;
default:
//usage();
exit(2);
break;
}
}
if (t38_mode)
t38_tests(use_gui, test_sending, 0, 1);
else
t30_tests(log_audio, test_sending);
if (done)
{
printf("Tests passed\n");
}
return 0;
}
/*- End of function --------------------------------------------------------*/
/*- End of file ------------------------------------------------------------*/
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