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freeswitch/libs/spandsp/tests/fax_tests.c

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/*
* SpanDSP - a series of DSP components for telephony
*
* fax_tests.c - Tests for the audio and T.38 FAX modules.
*
* Written by Steve Underwood <steveu@coppice.org>
*
* Copyright (C) 2005, 2006, 2009, 2010 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.
*/
/*! \file */
/*! \page fax_tests_page FAX tests
\section fax_tests_page_sec_1 What does it do?
These tests exercise the following FAX to FAX paths:
+--Modems-+---------TDM/RTP---------+-Modems--+
| \ / |
| \ / |
T.30 <---+ T.38 gateway T.38 gateway +--->T.30
| \ / |
| \ / |
+---T.38--------+--UDPTL/RTP--+--------T.38---+
T.30<->Modems<-------------------------TDM/RTP------------------------->Modems<->T.30
T.30<->Modems<-TDM/RTP->T.38 gateway<-UDPTL/RTP->T.38 gateway<-TDM/RTP->Modems<->T.30
T.30<->Modems<-TDM/RTP->T.38 gateway<-UDPTL/RTP-------------------------->T.38<->T.30
T.30<->T.38<--------------------------UDPTL/RTP->T.38 gateway<-TDM/RTP->Modems<->T.30
T.30<->T.38<--------------------------UDPTL/RTP-------------------------->T.38<->T.30
*/
/* 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 <inttypes.h>
#include <stdio.h>
#include <fcntl.h>
#include <string.h>
#include <assert.h>
#include <errno.h>
#include <sndfile.h>
#if !defined(_WIN32)
#include <unistd.h>
#endif
#if defined(HAVE_LIBXML_XMLMEMORY_H)
#include <libxml/xmlmemory.h>
#endif
#if defined(HAVE_LIBXML_PARSER_H)
#include <libxml/parser.h>
#endif
#if defined(HAVE_LIBXML_XINCLUDE_H)
#include <libxml/xinclude.h>
#endif
//#if defined(WITH_SPANDSP_INTERNALS)
#define SPANDSP_EXPOSE_INTERNAL_STRUCTURES
//#endif
#include "udptl.h"
#include "spandsp.h"
#include "spandsp-sim.h"
#if defined(ENABLE_GUI)
#include "media_monitor.h"
#endif
#include "fax_tester.h"
#include "fax_utils.h"
#include "pcap_parse.h"
#define SAMPLES_PER_CHUNK 160
#define INPUT_TIFF_FILE_NAME "../test-data/itu/fax/itutests.tif"
#define OUTPUT_TIFF_FILE_NAME "fax_tests.tif"
#define OUTPUT_WAVE_FILE_NAME "fax_tests.wav"
enum
{
AUDIO_FAX,
T38_TERMINAL_FAX,
T38_GATEWAY_FAX
};
int mode[2] = {AUDIO_FAX, AUDIO_FAX};
t30_state_t *t30_state[2];
fax_state_t *fax_state[2];
t38_gateway_state_t *t38_gateway_state[2];
t38_terminal_state_t *t38_state[2];
t38_core_state_t *t38_core_state[2];
g1050_state_t *g1050_path[2];
awgn_state_t *awgn_state[2];
int16_t audio_buffer[2*2][SAMPLES_PER_CHUNK];
int t38_subst_seq[2] = {0, 0};
t30_exchanged_info_t expected_rx_info[2];
int use_receiver_not_ready = FALSE;
int test_local_interrupt = FALSE;
double when = 0.0;
int phase_e_reached[2] = {FALSE, FALSE};
int completed[2] = {FALSE, FALSE};
int succeeded[2] = {FALSE, FALSE};
int t38_simulate_incrementing_repeats = FALSE;
static int phase_b_handler(t30_state_t *s, void *user_data, int result)
{
int i;
int ch;
int status;
int len;
char tag[20];
const char *u;
const uint8_t *v;
i = (int) (intptr_t) user_data;
ch = i + 'A';
snprintf(tag, sizeof(tag), "%c: Phase B", ch);
printf("%c: Phase B handler - (0x%X) %s\n", ch, result, t30_frametype(result));
fax_log_rx_parameters(s, tag);
status = T30_ERR_OK;
if ((u = t30_get_rx_ident(s)))
{
printf("%c: Phase B remote ident '%s'\n", ch, u);
if (expected_rx_info[i].ident[0] && strcmp(expected_rx_info[i].ident, u))
{
printf("%c: Phase B: remote ident incorrect! - expected '%s'\n", ch, expected_rx_info[i].ident);
status = T30_ERR_IDENT_UNACCEPTABLE;
}
}
else
{
if (expected_rx_info[i].ident[0])
{
printf("%c: Phase B: remote ident missing!\n", ch);
status = T30_ERR_IDENT_UNACCEPTABLE;
}
}
if ((u = t30_get_rx_sub_address(s)))
{
printf("%c: Phase B: remote sub-address '%s'\n", ch, u);
if (expected_rx_info[i].sub_address[0] && strcmp(expected_rx_info[i].sub_address, u))
{
printf("%c: Phase B: remote sub-address incorrect! - expected '%s'\n", ch, expected_rx_info[i].sub_address);
status = T30_ERR_SUB_UNACCEPTABLE;
}
}
else
{
if (expected_rx_info[i].sub_address[0])
{
printf("%c: Phase B: remote sub-address missing!\n", ch);
status = T30_ERR_SUB_UNACCEPTABLE;
}
}
if ((u = t30_get_rx_polled_sub_address(s)))
{
printf("%c: Phase B: remote polled sub-address '%s'\n", ch, u);
if (expected_rx_info[i].polled_sub_address[0] && strcmp(expected_rx_info[i].polled_sub_address, u))
{
printf("%c: Phase B: remote polled sub-address incorrect! - expected '%s'\n", ch, expected_rx_info[i].polled_sub_address);
status = T30_ERR_PSA_UNACCEPTABLE;
}
}
else
{
if (expected_rx_info[i].polled_sub_address[0])
{
printf("%c: Phase B: remote polled sub-address missing!\n", ch);
status = T30_ERR_PSA_UNACCEPTABLE;
}
}
if ((u = t30_get_rx_selective_polling_address(s)))
{
printf("%c: Phase B: remote selective polling address '%s'\n", ch, u);
if (expected_rx_info[i].selective_polling_address[0] && strcmp(expected_rx_info[i].selective_polling_address, u))
{
printf("%c: Phase B: remote selective polling address incorrect! - expected '%s'\n", ch, expected_rx_info[i].selective_polling_address);
status = T30_ERR_SEP_UNACCEPTABLE;
}
}
else
{
if (expected_rx_info[i].selective_polling_address[0])
{
printf("%c: Phase B: remote selective polling address missing!\n", ch);
status = T30_ERR_SEP_UNACCEPTABLE;
}
}
if ((u = t30_get_rx_sender_ident(s)))
{
printf("%c: Phase B: remote sender ident '%s'\n", ch, u);
if (expected_rx_info[i].sender_ident[0] && strcmp(expected_rx_info[i].sender_ident, u))
{
printf("%c: Phase B: remote sender ident incorrect! - expected '%s'\n", ch, expected_rx_info[i].sender_ident);
status = T30_ERR_SID_UNACCEPTABLE;
}
}
else
{
if (expected_rx_info[i].sender_ident[0])
{
printf("%c: Phase B: remote sender ident missing!\n", ch);
status = T30_ERR_SID_UNACCEPTABLE;
}
}
if ((u = t30_get_rx_password(s)))
{
printf("%c: Phase B: remote password '%s'\n", ch, u);
if (expected_rx_info[i].password[0] && strcmp(expected_rx_info[i].password, u))
{
printf("%c: Phase B: remote password incorrect! - expected '%s'\n", ch, expected_rx_info[i].password);
status = T30_ERR_PWD_UNACCEPTABLE;
}
}
else
{
if (expected_rx_info[i].password[0])
{
printf("%c: Phase B: remote password missing!\n", ch);
status = T30_ERR_PWD_UNACCEPTABLE;
}
}
if ((len = t30_get_rx_nsf(s, &v)))
{
printf("%c: Phase B: NSF %d bytes\n", ch, len);
if (expected_rx_info[i].nsf_len && (expected_rx_info[i].nsf_len != len || memcmp(expected_rx_info[i].nsf, v, len)))
{
printf("%c: Phase B: remote NSF incorrect! - expected %u bytes\n", ch, (unsigned int) expected_rx_info[i].nsf_len);
}
}
else
{
if (expected_rx_info[i].nsf_len)
{
printf("%c: Phase B: remote NSF missing! - expected %u bytes\n", ch, (unsigned int) expected_rx_info[i].nsf_len);
}
}
if ((len = t30_get_rx_nsc(s, &v)))
{
printf("%c: Phase B: NSC %d bytes\n", ch, len);
if (expected_rx_info[i].nsc_len && (expected_rx_info[i].nsc_len != len || memcmp(expected_rx_info[i].nsc, v, len)))
{
printf("%c: Phase B: remote NSC incorrect! - expected %u bytes\n", ch, (unsigned int) expected_rx_info[i].nsc_len);
}
}
else
{
if (expected_rx_info[i].nsc_len)
{
printf("%c: Phase B: remote NSC missing! - expected %u bytes\n", ch, (unsigned int) expected_rx_info[i].nsc_len);
}
}
if ((len = t30_get_rx_nss(s, &v)))
{
printf("%c: Phase B: NSS %d bytes\n", ch, len);
if (expected_rx_info[i].nss_len && (expected_rx_info[i].nss_len != len || memcmp(expected_rx_info[i].nss, v, len)))
{
printf("%c: Phase B: remote NSS incorrect! - expected %u bytes\n", ch, (unsigned int) expected_rx_info[i].nss_len);
}
}
else
{
if (expected_rx_info[i].nss_len)
{
printf("%c: Phase B: remote NSS missing! - expected %u bytes\n", ch, (unsigned int) expected_rx_info[i].nsf_len);
}
}
return status;
}
/*- 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 + 'A');
printf("%c: Phase D handler - (0x%X) %s\n", i + 'A', result, t30_frametype(result));
fax_log_page_transfer_statistics(s, tag);
fax_log_tx_parameters(s, tag);
fax_log_rx_parameters(s, tag);
if (use_receiver_not_ready)
t30_set_receiver_not_ready(s, 3);
if (test_local_interrupt)
{
if (i == 'A')
{
printf("%c: Initiating interrupt request\n", i);
t30_local_interrupt_request(s, TRUE);
}
else
{
switch (result)
{
case T30_PIP:
case T30_PRI_MPS:
case T30_PRI_EOM:
case T30_PRI_EOP:
printf("%c: Accepting interrupt request\n", i);
t30_local_interrupt_request(s, TRUE);
break;
case T30_PIN:
break;
}
}
}
return T30_ERR_OK;
}
/*- End of function --------------------------------------------------------*/
static void phase_e_handler(t30_state_t *s, void *user_data, int result)
{
int i;
t30_stats_t t;
char tag[20];
i = (int) (intptr_t) user_data;
snprintf(tag, sizeof(tag), "%c: Phase E", i + 'A');
printf("%c: Phase E handler - (%d) %s\n", i + 'A', result, t30_completion_code_to_str(result));
fax_log_final_transfer_statistics(s, tag);
fax_log_tx_parameters(s, tag);
fax_log_rx_parameters(s, tag);
t30_get_transfer_statistics(s, &t);
succeeded[i] = (result == T30_ERR_OK);
phase_e_reached[i] = TRUE;
}
/*- End of function --------------------------------------------------------*/
static void real_time_frame_handler(t30_state_t *s,
void *user_data,
int direction,
const uint8_t *msg,
int len)
{
int i;
i = (intptr_t) user_data;
printf("%c: Real time frame handler - %s, %s, length = %d\n",
i + 'A',
(direction) ? "line->T.30" : "T.30->line",
t30_frametype(msg[2]),
len);
}
/*- End of function --------------------------------------------------------*/
static int document_handler(t30_state_t *s, void *user_data, int event)
{
int i;
i = (intptr_t) user_data;
printf("%c: Document handler - event %d\n", i + 'A', event);
return FALSE;
}
/*- End of function --------------------------------------------------------*/
static void set_t30_callbacks(t30_state_t *t30, int chan)
{
t30_set_phase_b_handler(t30, phase_b_handler, (void *) (intptr_t) chan);
t30_set_phase_d_handler(t30, phase_d_handler, (void *) (intptr_t) chan);
t30_set_phase_e_handler(t30, phase_e_handler, (void *) (intptr_t) chan);
t30_set_real_time_frame_handler(t30, real_time_frame_handler, (void *) (intptr_t) chan);
t30_set_document_handler(t30, document_handler, (void *) (intptr_t) chan);
}
/*- End of function --------------------------------------------------------*/
static void real_time_gateway_frame_handler(t38_gateway_state_t *s,
void *user_data,
int direction,
const uint8_t *msg,
int len)
{
int i;
i = (intptr_t) user_data;
printf("%c: Real time gateway frame handler - %s, %s, length = %d\n",
i + 'A',
(direction) ? "PSTN->T.38" : "T.38->PSTN",
t30_frametype(msg[2]),
len);
}
/*- End of function --------------------------------------------------------*/
static int tx_packet_handler(t38_core_state_t *s, void *user_data, const uint8_t *buf, int len, int count)
{
int i;
int chan;
/* This routine queues messages between two instances of T.38 processing */
chan = (intptr_t) user_data;
if (t38_simulate_incrementing_repeats)
{
for (i = 0; i < count; i++)
{
span_log(&s->logging, SPAN_LOG_FLOW, "Send seq %d, len %d\n", t38_subst_seq[chan], len);
if (g1050_put(g1050_path[chan], buf, len, t38_subst_seq[chan], when) < 0)
printf("Lost packet %d\n", t38_subst_seq[chan]);
t38_subst_seq[chan] = (t38_subst_seq[chan] + 1) & 0xFFFF;
}
}
else
{
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(g1050_path[chan], buf, len, s->tx_seq_no, when) < 0)
printf("Lost packet %d\n", s->tx_seq_no);
}
}
return 0;
}
/*- End of function --------------------------------------------------------*/
int main(int argc, char *argv[])
{
int16_t silence[SAMPLES_PER_CHUNK];
int16_t t30_amp[2][SAMPLES_PER_CHUNK];
int16_t t38_amp[2][SAMPLES_PER_CHUNK];
int16_t t38_amp_hist_a[8][SAMPLES_PER_CHUNK];
int16_t t38_amp_hist_b[8][SAMPLES_PER_CHUNK];
int16_t out_amp[SAMPLES_PER_CHUNK*4];
int16_t *fax_rx_buf[2];
int16_t *fax_tx_buf[2];
int16_t *t38_gateway_rx_buf[2];
int16_t *t38_gateway_tx_buf[2];
int t30_len[2];
int t38_len[2];
int hist_ptr;
int log_audio;
int msg_len;
uint8_t msg[1024];
int outframes;
SNDFILE *wave_handle;
SNDFILE *input_wave_handle;
int use_ecm;
int use_tep;
int feedback_audio;
int use_transmit_on_idle;
int t38_version;
const char *input_tiff_file_name;
const char *decode_file_name;
int i;
int j;
int seq_no;
int g1050_model_no;
int g1050_speed_pattern_no;
int t38_transport;
double tx_when;
double rx_when;
int supported_modems;
int remove_fill_bits;
int opt;
int start_page;
int end_page;
int drop_frame;
int drop_frame_rate;
float signal_scaling;
int signal_level;
int noise_level;
int code_to_look_up;
int scan_line_time;
t38_stats_t t38_stats;
t30_stats_t t30_stats;
logging_state_t *logging;
int expected_pages;
char *page_header_info;
char *page_header_tz;
const char *tag;
char buf[132 + 1];
#if defined(ENABLE_GUI)
int use_gui;
#endif
#if defined(ENABLE_GUI)
use_gui = FALSE;
#endif
log_audio = FALSE;
use_ecm = FALSE;
t38_version = 1;
input_tiff_file_name = INPUT_TIFF_FILE_NAME;
t38_simulate_incrementing_repeats = FALSE;
g1050_model_no = 0;
g1050_speed_pattern_no = 1;
remove_fill_bits = FALSE;
use_tep = FALSE;
feedback_audio = FALSE;
use_transmit_on_idle = TRUE;
supported_modems = T30_SUPPORT_V27TER | T30_SUPPORT_V29 | T30_SUPPORT_V17;
page_header_info = NULL;
page_header_tz = NULL;
drop_frame = 0;
drop_frame_rate = 0;
start_page = -1;
end_page = -1;
signal_level = 0;
noise_level = -99;
scan_line_time = 0;
decode_file_name = NULL;
code_to_look_up = -1;
t38_transport = T38_TRANSPORT_UDPTL;
while ((opt = getopt(argc, argv, "c:d:D:efFgH:i:Ilm:M:n:p:s:tT:u:v:z:")) != -1)
{
switch (opt)
{
case 'c':
code_to_look_up = atoi(optarg);
break;
case 'd':
decode_file_name = optarg;
break;
case 'D':
drop_frame_rate =
drop_frame = atoi(optarg);
break;
case 'e':
use_ecm = TRUE;
break;
case 'f':
feedback_audio = TRUE;
break;
case 'F':
remove_fill_bits = TRUE;
break;
case 'g':
#if defined(ENABLE_GUI)
use_gui = TRUE;
#else
fprintf(stderr, "Graphical monitoring not available\n");
exit(2);
#endif
break;
case 'H':
page_header_info = optarg;
break;
case 'i':
input_tiff_file_name = optarg;
break;
case 'I':
t38_simulate_incrementing_repeats = TRUE;
break;
case 'l':
log_audio = TRUE;
break;
case 'm':
supported_modems = atoi(optarg);
break;
case 'M':
g1050_model_no = optarg[0] - 'A' + 1;
break;
case 'n':
noise_level = atoi(optarg);
break;
case 'p':
for (i = 0; i < 2; i++)
{
switch (optarg[i])
{
case 'A':
mode[i] = AUDIO_FAX;
break;
case 'G':
mode[i] = T38_GATEWAY_FAX;
break;
case 'T':
mode[i] = T38_TERMINAL_FAX;
break;
default:
fprintf(stderr, "Unknown FAX path element %c\n", optarg[i]);
exit(2);
}
}
if ((mode[0] == AUDIO_FAX && mode[1] != AUDIO_FAX)
||
(mode[0] != AUDIO_FAX && mode[1] == AUDIO_FAX))
{
fprintf(stderr, "Invalid FAX path %s\n", optarg);
exit(2);
}
break;
case 's':
g1050_speed_pattern_no = atoi(optarg);
break;
#if 0
case 's':
signal_level = atoi(optarg);
break;
#endif
case 'S':
scan_line_time = atoi(optarg);
break;
case 't':
use_tep = TRUE;
break;
case 'T':
start_page = 0;
end_page = atoi(optarg);
break;
case 'u':
if (strcasecmp(optarg, "udptl") == 0)
t38_transport = T38_TRANSPORT_UDPTL;
else if (strcasecmp(optarg, "rtp") == 0)
t38_transport = T38_TRANSPORT_RTP;
else if (strcasecmp(optarg, "tcp") == 0)
t38_transport = T38_TRANSPORT_TCP;
else if (strcasecmp(optarg, "tcp-tpkt") == 0)
t38_transport = T38_TRANSPORT_TCP_TPKT;
else
{
fprintf(stderr, "Unknown T.38 transport mode\n");
exit(2);
}
break;
case 'v':
t38_version = atoi(optarg);
break;
case 'z':
page_header_tz = optarg;
break;
default:
//usage();
exit(2);
break;
}
}
if (code_to_look_up >= 0)
{
printf("Result code %d is %s\n", code_to_look_up, t30_completion_code_to_str(code_to_look_up));
exit(0);
}
printf("Using T.38 version %d\n", t38_version);
if (use_ecm)
printf("Using ECM\n");
wave_handle = NULL;
if (log_audio)
{
if ((wave_handle = sf_open_telephony_write(OUTPUT_WAVE_FILE_NAME, 4)) == NULL)
{
fprintf(stderr, " Cannot create audio file '%s'\n", OUTPUT_WAVE_FILE_NAME);
exit(2);
}
}
memset(silence, 0, sizeof(silence));
srand48(0x1234567);
/* Set up the nodes */
input_wave_handle = NULL;
if (mode[0] == T38_TERMINAL_FAX)
{
}
else
{
if (decode_file_name)
{
if ((input_wave_handle = sf_open_telephony_read(decode_file_name, 1)) == NULL)
{
fprintf(stderr, " Cannot open audio file '%s'\n", decode_file_name);
exit(2);
}
}
}
for (i = 0; i < 2; i++)
{
tag = (i == 0) ? "A" : "B";
memset(&expected_rx_info[i], 0, sizeof(expected_rx_info[i]));
if (mode[i] == T38_TERMINAL_FAX)
{
if ((t38_state[i] = t38_terminal_init(NULL, (i == 0), tx_packet_handler, (void *) (intptr_t) i)) == NULL)
{
fprintf(stderr, "Cannot start the T.38 terminal instance\n");
exit(2);
}
t30_state[i] = t38_terminal_get_t30_state(t38_state[i]);
t38_core_state[i] = t38_terminal_get_t38_core_state(t38_state[i]);
logging = t38_terminal_get_logging_state(t38_state[i]);
span_log_set_level(logging, SPAN_LOG_DEBUG | SPAN_LOG_SHOW_PROTOCOL | SPAN_LOG_SHOW_TAG | SPAN_LOG_SHOW_SAMPLE_TIME);
span_log_set_tag(logging, tag);
logging = t38_core_get_logging_state(t38_core_state[i]);
span_log_set_level(logging, SPAN_LOG_DEBUG | SPAN_LOG_SHOW_PROTOCOL | SPAN_LOG_SHOW_TAG | SPAN_LOG_SHOW_SAMPLE_TIME);
span_log_set_tag(logging, tag);
logging = t30_get_logging_state(t30_state[i]);
span_log_set_level(logging, SPAN_LOG_DEBUG | SPAN_LOG_SHOW_PROTOCOL | SPAN_LOG_SHOW_TAG | SPAN_LOG_SHOW_SAMPLE_TIME);
span_log_set_tag(logging, tag);
}
else
{
if ((fax_state[i] = fax_init(NULL, (i == 0))) == NULL)
{
fprintf(stderr, "Cannot start FAX instance\n");
exit(2);
}
t30_state[i] = fax_get_t30_state(fax_state[i]);
logging = fax_get_logging_state(fax_state[i]);
span_log_set_level(logging, SPAN_LOG_DEBUG | SPAN_LOG_SHOW_PROTOCOL | SPAN_LOG_SHOW_TAG | SPAN_LOG_SHOW_SAMPLE_TIME);
span_log_set_tag(logging, tag);
logging = fax_modems_get_logging_state(&fax_state[i]->modems);
span_log_set_level(logging, SPAN_LOG_DEBUG | SPAN_LOG_SHOW_PROTOCOL | SPAN_LOG_SHOW_TAG | SPAN_LOG_SHOW_SAMPLE_TIME);
span_log_set_tag(logging, tag);
logging = t30_get_logging_state(t30_state[i]);
span_log_set_level(logging, SPAN_LOG_DEBUG | SPAN_LOG_SHOW_PROTOCOL | SPAN_LOG_SHOW_TAG | SPAN_LOG_SHOW_SAMPLE_TIME);
span_log_set_tag(logging, tag);
if (mode[i] == T38_GATEWAY_FAX)
{
if ((t38_gateway_state[i] = t38_gateway_init(NULL, tx_packet_handler, (void *) (intptr_t) i)) == NULL)
{
fprintf(stderr, "Cannot start the T.38 gateway instancel\n");
exit(2);
}
t38_core_state[i] = t38_gateway_get_t38_core_state(t38_gateway_state[i]);
logging = t38_gateway_get_logging_state(t38_gateway_state[i]);
span_log_set_level(logging, SPAN_LOG_DEBUG | SPAN_LOG_SHOW_PROTOCOL | SPAN_LOG_SHOW_TAG | SPAN_LOG_SHOW_SAMPLE_TIME);
span_log_set_tag(logging, tag);
logging = fax_modems_get_logging_state(&t38_gateway_state[i]->audio.modems);
span_log_set_level(logging, SPAN_LOG_DEBUG | SPAN_LOG_SHOW_PROTOCOL | SPAN_LOG_SHOW_TAG | SPAN_LOG_SHOW_SAMPLE_TIME);
span_log_set_tag(logging, tag);
logging = t38_core_get_logging_state(t38_core_state[i]);
span_log_set_level(logging, SPAN_LOG_DEBUG | SPAN_LOG_SHOW_PROTOCOL | SPAN_LOG_SHOW_TAG | SPAN_LOG_SHOW_SAMPLE_TIME);
span_log_set_tag(logging, tag);
fax_rx_buf[i] = t38_amp[i];
fax_tx_buf[i] = t30_amp[i];
t38_gateway_rx_buf[i] = t30_amp[i];
t38_gateway_tx_buf[i] = t38_amp[i];
}
else
{
fax_rx_buf[i] = t30_amp[i];
fax_tx_buf[i] = t30_amp[i ^ 1];
t38_gateway_rx_buf[i] = NULL;
t38_gateway_tx_buf[i] = NULL;
}
awgn_state[i] = NULL;
signal_scaling = 1.0f;
if (noise_level > -99)
{
awgn_state[i] = awgn_init_dbm0(NULL, 1234567, noise_level);
signal_scaling = powf(10.0f, signal_level/20.0f);
printf("Signal scaling %f\n", signal_scaling);
}
}
set_t30_callbacks(t30_state[i], i);
}
/* Set up the channels */
for (i = 0; i < 2; i++)
{
if ((g1050_path[i] = g1050_init(g1050_model_no, g1050_speed_pattern_no, 100, 33)) == NULL)
{
fprintf(stderr, "Failed to start IP network path model\n");
exit(2);
}
memset(audio_buffer[2*i], 0, SAMPLES_PER_CHUNK*sizeof(int16_t));
memset(audio_buffer[2*i + 1], 0, SAMPLES_PER_CHUNK*sizeof(int16_t));
memset(t30_amp[i], 0, sizeof(t30_amp[i]));
memset(t38_amp[i], 0, sizeof(t38_amp[i]));
}
memset(t38_amp_hist_a, 0, sizeof(t38_amp_hist_a));
memset(t38_amp_hist_b, 0, sizeof(t38_amp_hist_b));
for (i = 0; i < 2; i++)
{
j = i + 1;
sprintf(buf, "%d%d%d%d%d%d%d%d", j, j, j, j, j, j, j, j);
t30_set_tx_ident(t30_state[i], buf);
strcpy(expected_rx_info[i ^ 1].ident, buf);
sprintf(buf, "Sub-address %d", j);
t30_set_tx_sub_address(t30_state[i], buf);
//strcpy(expected_rx_info[i ^ 1].sub_address, buf);
sprintf(buf, "Sender ID %d", j);
t30_set_tx_sender_ident(t30_state[i], buf);
//strcpy(expected_rx_info[i ^ 1].sender_ident, buf);
sprintf(buf, "Password %d", j);
t30_set_tx_password(t30_state[i], buf);
//strcpy(expected_rx_info[i ^ 1].password, buf);
sprintf(buf, "Polled sub-add %d", j);
t30_set_tx_polled_sub_address(t30_state[i], buf);
//strcpy(expected_rx_info[i ^ 1].polled_sub_address, buf);
sprintf(buf, "Select poll add %d", j);
t30_set_tx_selective_polling_address(t30_state[i], buf);
//strcpy(expected_rx_info[i ^ 1].selective_polling_address, buf);
t30_set_tx_page_header_info(t30_state[i], page_header_info);
if (page_header_tz)
t30_set_tx_page_header_tz(t30_state[i], page_header_tz);
if ((i & 1) == 1)
{
t30_set_tx_nsf(t30_state[i], (const uint8_t *) "\x50\x00\x00\x00Spandsp\x00", 12);
expected_rx_info[i ^ 1].nsf = (uint8_t *) "\x50\x00\x00\x00Spandsp\x00";
expected_rx_info[i ^ 1].nsf_len = 12;
}
t30_set_supported_modems(t30_state[i], supported_modems);
t30_set_supported_t30_features(t30_state[i],
T30_SUPPORT_IDENTIFICATION
| T30_SUPPORT_SELECTIVE_POLLING
| T30_SUPPORT_SUB_ADDRESSING);
t30_set_supported_image_sizes(t30_state[i],
T30_SUPPORT_US_LETTER_LENGTH
| T30_SUPPORT_US_LEGAL_LENGTH
| T30_SUPPORT_UNLIMITED_LENGTH
| T30_SUPPORT_215MM_WIDTH
| T30_SUPPORT_255MM_WIDTH
| T30_SUPPORT_303MM_WIDTH);
t30_set_supported_resolutions(t30_state[i],
T30_SUPPORT_STANDARD_RESOLUTION
| T30_SUPPORT_FINE_RESOLUTION
| T30_SUPPORT_SUPERFINE_RESOLUTION
| T30_SUPPORT_R8_RESOLUTION
| T30_SUPPORT_R16_RESOLUTION
| T30_SUPPORT_300_300_RESOLUTION
| T30_SUPPORT_400_400_RESOLUTION
| T30_SUPPORT_600_600_RESOLUTION
| T30_SUPPORT_1200_1200_RESOLUTION
| T30_SUPPORT_300_600_RESOLUTION
| T30_SUPPORT_400_800_RESOLUTION
| T30_SUPPORT_600_1200_RESOLUTION);
t30_set_ecm_capability(t30_state[i], use_ecm);
if (use_ecm)
t30_set_supported_compressions(t30_state[i], T30_SUPPORT_T4_1D_COMPRESSION | T30_SUPPORT_T4_2D_COMPRESSION | T30_SUPPORT_T6_COMPRESSION);
t30_set_minimum_scan_line_time(t30_state[i], scan_line_time);
if (mode[i] == T38_GATEWAY_FAX)
{
t38_gateway_set_transmit_on_idle(t38_gateway_state[i], use_transmit_on_idle);
t38_gateway_set_supported_modems(t38_gateway_state[i], supported_modems);
//t38_gateway_set_nsx_suppression(t38_state[i], NULL, 0, NULL, 0);
t38_gateway_set_fill_bit_removal(t38_gateway_state[i], remove_fill_bits);
t38_gateway_set_real_time_frame_handler(t38_gateway_state[i], real_time_gateway_frame_handler, (void *) (intptr_t) i);
t38_gateway_set_ecm_capability(t38_gateway_state[i], use_ecm);
}
if (mode[i] != AUDIO_FAX)
{
t38_set_t38_version(t38_core_state[i], t38_version);
}
if (mode[i] == T38_TERMINAL_FAX)
{
//t30_set_iaf_mode(t30_state[i], T30_IAF_MODE_NO_FILL_BITS);
switch (t38_transport)
{
case T38_TRANSPORT_UDPTL:
case T38_TRANSPORT_RTP:
t38_terminal_set_fill_bit_removal(t38_state[i], remove_fill_bits);
t38_terminal_set_tep_mode(t38_state[i], use_tep);
break;
case T38_TRANSPORT_TCP:
case T38_TRANSPORT_TCP_TPKT:
t38_terminal_set_fill_bit_removal(t38_state[i], TRUE);
t38_terminal_set_config(t38_state[i], T38_TERMINAL_OPTION_NO_PACING | T38_TERMINAL_OPTION_NO_INDICATORS);
t38_terminal_set_tep_mode(t38_state[i], FALSE);
break;
}
}
else
{
fax_set_transmit_on_idle(fax_state[i], use_transmit_on_idle);
fax_set_tep_mode(fax_state[i], use_tep);
}
}
t30_set_tx_file(t30_state[0], input_tiff_file_name, start_page, end_page);
t30_set_rx_file(t30_state[1], OUTPUT_TIFF_FILE_NAME, -1);
#if defined(ENABLE_GUI)
if (use_gui)
start_media_monitor();
#endif
hist_ptr = 0;
for (;;)
{
memset(out_amp, 0, sizeof(out_amp));
for (i = 0; i < 2; i++)
{
/* Update T.30 timing */
logging = t30_get_logging_state(t30_state[i]);
span_log_bump_samples(logging, SAMPLES_PER_CHUNK);
if (mode[i] == T38_TERMINAL_FAX)
{
/* Update T.38 termination timing */
logging = t38_terminal_get_logging_state(t38_state[i]);
span_log_bump_samples(logging, SAMPLES_PER_CHUNK);
logging = t38_core_get_logging_state(t38_core_state[i]);
span_log_bump_samples(logging, SAMPLES_PER_CHUNK);
completed[i] = t38_terminal_send_timeout(t38_state[i], SAMPLES_PER_CHUNK);
}
else
{
/* Update audio FAX timing */
logging = fax_get_logging_state(fax_state[i]);
span_log_bump_samples(logging, SAMPLES_PER_CHUNK);
fax_rx(fax_state[i], fax_rx_buf[i], SAMPLES_PER_CHUNK);
if (!t30_call_active(t30_state[i]))
{
completed[i] = TRUE;
continue;
}
if (i == 0 && input_wave_handle)
{
t30_len[i] = sf_readf_short(input_wave_handle, fax_tx_buf[i], SAMPLES_PER_CHUNK);
if (t30_len[i] == 0)
break;
}
else
{
t30_len[i] = fax_tx(fax_state[i], fax_tx_buf[i], SAMPLES_PER_CHUNK);
if (!use_transmit_on_idle)
{
/* 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[i] < SAMPLES_PER_CHUNK)
{
memset(t30_amp[i] + t30_len[i], 0, sizeof(int16_t)*(SAMPLES_PER_CHUNK - t30_len[i]));
t30_len[i] = SAMPLES_PER_CHUNK;
}
}
if (awgn_state[i])
{
for (j = 0; j < t30_len[i]; j++)
fax_tx_buf[i][j] = ((int16_t) (fax_tx_buf[i][j]*signal_scaling)) + awgn(awgn_state[i]);
}
}
if (log_audio)
{
for (j = 0; j < t30_len[i]; j++)
out_amp[4*j + 2*i] = t30_amp[i][j];
}
if (feedback_audio)
{
for (j = 0; j < t30_len[i]; j++)
t30_amp[i][j] += t38_amp_hist_a[hist_ptr][j] >> 1;
memcpy(t38_amp_hist_a[hist_ptr], t38_amp[i], sizeof(int16_t)*SAMPLES_PER_CHUNK);
}
if (mode[i] == T38_GATEWAY_FAX)
{
/* Update T.38 gateway timing */
logging = t38_gateway_get_logging_state(t38_gateway_state[i]);
span_log_bump_samples(logging, SAMPLES_PER_CHUNK);
logging = t38_core_get_logging_state(t38_core_state[i]);
span_log_bump_samples(logging, SAMPLES_PER_CHUNK);
if (drop_frame_rate && --drop_frame == 0)
{
drop_frame = drop_frame_rate;
if (t38_gateway_rx_fillin(t38_gateway_state[i], SAMPLES_PER_CHUNK))
break;
}
else
{
if (t38_gateway_rx(t38_gateway_state[i], t38_gateway_rx_buf[i], SAMPLES_PER_CHUNK))
break;
}
t38_len[i] = t38_gateway_tx(t38_gateway_state[i], t38_gateway_tx_buf[i], SAMPLES_PER_CHUNK);
if (!use_transmit_on_idle)
{
if (t38_len[i] < SAMPLES_PER_CHUNK)
{
memset(t38_amp[i] + t38_len[i], 0, sizeof(int16_t)*(SAMPLES_PER_CHUNK - t38_len[i]));
t38_len[i] = SAMPLES_PER_CHUNK;
}
}
if (feedback_audio)
{
for (j = 0; j < t30_len[i]; j++)
t30_amp[i][j] += t38_amp_hist_a[hist_ptr][j] >> 1;
memcpy(t38_amp_hist_a[hist_ptr], t38_amp[i], sizeof(int16_t)*SAMPLES_PER_CHUNK);
}
if (log_audio)
{
for (j = 0; j < t38_len[i]; j++)
out_amp[4*j + 2*i + 1] = t38_amp[i][j];
}
}
}
if (mode[i] != AUDIO_FAX)
{
while ((msg_len = g1050_get(g1050_path[i], 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_rx_ifp_packet(t38_core_state[i ^ 1], msg, msg_len, seq_no);
}
}
}
if (log_audio)
{
outframes = sf_writef_short(wave_handle, out_amp, SAMPLES_PER_CHUNK);
if (outframes != SAMPLES_PER_CHUNK)
break;
}
when += (float) SAMPLES_PER_CHUNK/(float) SAMPLE_RATE;
if (completed[0] && completed[1])
break;
#if defined(ENABLE_GUI)
if (use_gui)
media_monitor_update_display();
#endif
if (++hist_ptr > 3)
hist_ptr = 0;
}
for (i = 0; i < 2; i++)
{
if (mode[i] == T38_GATEWAY_FAX)
{
t38_gateway_get_transfer_statistics(t38_gateway_state[i], &t38_stats);
printf("%c side exchanged %d pages at %dbps, in %s mode\n",
i + 'A',
t38_stats.pages_transferred,
t38_stats.bit_rate,
(t38_stats.error_correcting_mode) ? "ECM" : "non-ECM");
}
}
if (input_wave_handle)
{
if (sf_close_telephony(input_wave_handle))
{
fprintf(stderr, " Cannot close audio file '%s'\n", decode_file_name);
exit(2);
}
}
if (log_audio)
{
if (sf_close_telephony(wave_handle))
{
fprintf(stderr, " Cannot close audio file '%s'\n", OUTPUT_WAVE_FILE_NAME);
exit(2);
}
}
/* Check how many pages should have been transferred */
expected_pages = get_tiff_total_pages(input_tiff_file_name);
if (end_page >= 0 && expected_pages > end_page + 1)
expected_pages = end_page + 1;
if (start_page >= 0)
expected_pages -= start_page;
/* Check how many pages were transferred */
for (i = 0; i < 2; i++)
{
if (!phase_e_reached[i])
break;
if (!succeeded[i])
break;
t30_get_transfer_statistics(t30_state[i], &t30_stats);
if (i & 1)
{
if (t30_stats.pages_tx != 0 || t30_stats.pages_rx != expected_pages)
break;
}
else
{
if (t30_stats.pages_tx != expected_pages || t30_stats.pages_rx != 0)
break;
}
if (mode[i] == T38_TERMINAL_FAX)
t38_terminal_release(t38_state[i]);
else
fax_release(fax_state[i]);
if (mode[i] == T38_GATEWAY_FAX)
t38_gateway_release(t38_gateway_state[i]);
}
if (i < 2)
{
printf("Tests failed\n");
exit(2);
}
printf("Tests passed\n");
return 0;
}
/*- End of function --------------------------------------------------------*/
/*- End of file ------------------------------------------------------------*/
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