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;
logging = fax_get_logging_state(fax_state);
span_log_bump_samples(logging, SAMPLES_PER_CHUNK);
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);
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_telephony(in_handle))
{
fprintf(stderr, " Cannot close audio file '%s'\n", decode_test_file);
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);
}
}
return 0;
}
static void exchange(faxtester_state_t *s)
{
int16_t amp[SAMPLES_PER_CHUNK];
int16_t out_amp[2*SAMPLES_PER_CHUNK];
int len;
int i;
int total_audio_time;
logging_state_t *logging;
output_tiff_file_name = OUTPUT_TIFF_FILE_NAME;
if (log_audio)
{
if ((out_handle = sf_open_telephony_write(OUTPUT_WAVE_FILE_NAME, 2)) == NULL)
{
fprintf(stderr, " Cannot create audio file '%s'\n", OUTPUT_WAVE_FILE_NAME);
printf("Test failed\n");
exit(2);
}
/*endif*/
}
/*endif*/
total_audio_time = 0;
faxtester_set_transmit_on_idle(s, true);
s->far_fax = fax_init(NULL, false);
s->far_t30 = fax_get_t30_state(s->far_fax);
s->far_tag = 'A';
if (s->far_fax)
logging = fax_get_logging_state(s->far_fax);
else
logging = t38_terminal_get_logging_state(s->far_t38);
span_log_set_level(logging, SPAN_LOG_SHOW_SEVERITY | SPAN_LOG_SHOW_PROTOCOL | SPAN_LOG_SHOW_TAG | SPAN_LOG_SHOW_SAMPLE_TIME | SPAN_LOG_FLOW);
span_log_set_tag(logging, "A");
logging = t30_get_logging_state(s->far_t30);
span_log_set_level(logging, SPAN_LOG_SHOW_SEVERITY | SPAN_LOG_SHOW_PROTOCOL | SPAN_LOG_SHOW_TAG | SPAN_LOG_SHOW_SAMPLE_TIME | SPAN_LOG_FLOW);
span_log_set_tag(logging, "A");
#if 0
span_log_set_level(&fax.modems.v27ter_rx.logging, SPAN_LOG_SHOW_SEVERITY | SPAN_LOG_SHOW_PROTOCOL | SPAN_LOG_SHOW_TAG | SPAN_LOG_SHOW_SAMPLE_TIME | SPAN_LOG_FLOW);
span_log_set_tag(&fax.modems.v27ter_rx.logging, "A");
span_log_set_level(&fax.modems.v29_rx.logging, SPAN_LOG_SHOW_SEVERITY | SPAN_LOG_SHOW_PROTOCOL | SPAN_LOG_SHOW_TAG | SPAN_LOG_SHOW_SAMPLE_TIME | SPAN_LOG_FLOW);
span_log_set_tag(&fax.modems.v29_rx.logging, "A");
span_log_set_level(&fax.modems.v17_rx.logging, SPAN_LOG_SHOW_SEVERITY | SPAN_LOG_SHOW_PROTOCOL | SPAN_LOG_SHOW_TAG | SPAN_LOG_SHOW_SAMPLE_TIME | SPAN_LOG_FLOW);
span_log_set_tag(&fax.modems.v17_rx.logging, "A");
#endif
while (faxtester_next_step(s) == 0)
;
/*endwhile*/
for (;;)
{
len = fax_tx(s->far_fax, amp, SAMPLES_PER_CHUNK);
faxtester_rx(s, amp, len);
if (log_audio)
{
for (i = 0; i < len; i++)
out_amp[2*i + 0] = amp[i];
/*endfor*/
}
/*endif*/
total_audio_time += SAMPLES_PER_CHUNK;
logging = t30_get_logging_state(s->far_t30);
span_log_bump_samples(logging, len);
#if 0
span_log_bump_samples(&fax.modems.v27ter_rx.logging, len);
span_log_bump_samples(&fax.modems.v29_rx.logging, len);
span_log_bump_samples(&fax.modems.v17_rx.logging, len);
#endif
logging = fax_get_logging_state(s->far_fax);
span_log_bump_samples(logging, len);
logging = faxtester_get_logging_state(s);
span_log_bump_samples(logging, len);
len = faxtester_tx(s, amp, SAMPLES_PER_CHUNK);
if (fax_rx(s->far_fax, amp, len))
break;
/*endif*/
if (log_audio)
{
for (i = 0; i < len; i++)
out_amp[2*i + 1] = amp[i];
/*endfor*/
if (sf_writef_short(out_handle, out_amp, SAMPLES_PER_CHUNK) != SAMPLES_PER_CHUNK)
break;
/*endif*/
}
/*endif*/
if (s->test_for_call_clear && !s->far_end_cleared_call)
{
s->call_clear_timer += len;
if (!t30_call_active(s->far_t30))
{
span_log(faxtester_get_logging_state(s), SPAN_LOG_FLOW, "Far end cleared after %dms (limits %dms to %dms)\n", s->call_clear_timer/8, s->timein_x, s->timeout);
if (s->call_clear_timer/8 < s->timein_x || s->call_clear_timer/8 > s->timeout_x)
{
printf("Test failed\n");
exit(2);
}
span_log(faxtester_get_logging_state(s), SPAN_LOG_FLOW, "Clear time OK\n");
s->far_end_cleared_call = true;
s->test_for_call_clear = false;
while (faxtester_next_step(s) == 0)
;
/*endwhile*/
}
/*endif*/
}
/*endif*/
}
/*endfor*/
if (log_audio)
{
if (sf_close_telephony(out_handle))
{
fprintf(stderr, " Cannot close audio file '%s'\n", OUTPUT_WAVE_FILE_NAME);
printf("Test failed\n");
exit(2);
}
/*endif*/
}
/*endif*/
}
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_SUPPORT_T81_COMPRESSION
| T30_SUPPORT_T85_COMPRESSION
| T30_SUPPORT_T85_L0_COMPRESSION);
}
else
{
t30_set_supported_compressions(t30_state[i],
T30_SUPPORT_T4_1D_COMPRESSION
| T30_SUPPORT_T4_2D_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;
}
static int t30_tests(int t38_mode, int use_ecm, int use_gui, int log_audio, int test_sending, int g1050_model_no, int g1050_speed_pattern_no)
{
t38_terminal_state_t *t38_state;
fax_state_t *fax_state;
uint8_t msg[1024];
char buf[1024];
int len;
int msg_len;
int t30_len;
int t31_len;
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 k;
int outframes;
int ret;
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];
SNDFILE *wave_handle;
SNDFILE *in_handle;
at_state_t *at_state;
#if defined(WIN32)
DWORD read_bytes;
OVERLAPPED o;
#endif
/* Test the T.31 modem against the full FAX machine in spandsp */
/* Set up the test environment */
t38_version = 1;
without_pacing = FALSE;
use_tep = FALSE;
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);
}
}
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);
}
}
srand48(0x1234567);
if ((path_a_to_b = g1050_init(g1050_model_no, g1050_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(g1050_model_no, g1050_speed_pattern_no, 100, 33)) == NULL)
{
fprintf(stderr, "Failed to start IP network path model\n");
exit(2);
}
t38_state = NULL;
fax_state = NULL;
if (test_sending)
{
if (t38_mode)
{
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);
}
else
{
fax_state = fax_init(NULL, FALSE);
t30 = fax_get_t30_state(fax_state);
}
t30_set_rx_file(t30, OUTPUT_FILE_NAME, -1);
countdown = 0;
}
else
{
if (t38_mode)
{
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);
}
else
{
fax_state = fax_init(NULL, TRUE);
t30 = fax_get_t30_state(fax_state);
}
t30_set_tx_file(t30, INPUT_FILE_NAME, -1, -1);
countdown = 250;
}
t30_set_ecm_capability(t30, use_ecm);
if (t38_mode)
{
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');
if (t38_mode)
logging = t38_terminal_get_logging_state(t38_state);
else
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, (t38_mode) ? "T.38" : "FAX");
if (t38_mode)
{
t38_core = t38_terminal_get_t38_core_state(t38_state);
logging = t38_core_get_logging_state(t38_core);
span_log_set_level(logging, SPAN_LOG_DEBUG | SPAN_LOG_SHOW_TAG | SPAN_LOG_SHOW_SAMPLE_TIME);
span_log_set_tag(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");
}
else
{
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");
}
memset(silence, 0, sizeof(silence));
memset(t30_amp, 0, sizeof(t30_amp));
/* Now set up and run the T.31 modem */
if ((t31_state = t31_init(NULL, at_tx_handler, &modem[0], t31_call_control, &modem[0], t31_tx_packet_handler, NULL)) == NULL)
{
fprintf(stderr, " Cannot start the T.31 modem\n");
exit(2);
}
at_state = t31_get_at_state(t31_state);
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");
logging = at_get_logging_state(at_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 (t38_mode)
{
t38_core = t31_get_t38_core_state(t31_state);
logging = t38_core_get_logging_state(t38_core);
span_log_set_level(logging, SPAN_LOG_DEBUG | SPAN_LOG_SHOW_TAG | SPAN_LOG_SHOW_SAMPLE_TIME);
span_log_set_tag(logging, "T.31");
t31_set_mode(t31_state, TRUE);
t38_set_t38_version(t38_core, t38_version);
}
at_reset_call_info(at_state);
at_set_call_info(at_state, "DATE", "1231");
at_set_call_info(at_state, "TIME", "1200");
at_set_call_info(at_state, "NAME", "Name");
at_set_call_info(at_state, "NMBR", "123456789");
at_set_call_info(at_state, "ANID", "987654321");
at_set_call_info(at_state, "USER", "User");
at_set_call_info(at_state, "CDID", "234567890");
at_set_call_info(at_state, "NDID", "345678901");
#if defined(ENABLE_GUI)
if (use_gui)
start_media_monitor();
#endif
while (!done)
{
/* Deal with call setup, through the AT interface. */
if (test_sending)
{
}
else
{
if (answered == 0)
{
if (--countdown == 0)
{
t31_call_event(t31_state, AT_CALL_EVENT_ALERTING);
countdown = 250;
}
}
else if (answered == 1)
{
printf("ZZZ\n");
answered = 2;
t31_call_event(t31_state, AT_CALL_EVENT_ANSWERED);
}
}
ret = modem_wait_sock(modem[0].master, 20, MODEM_POLL_READ);
if ((ret & MODEM_POLL_READ))
{
#if defined(WIN32)
o.hEvent = CreateEvent(NULL, TRUE, FALSE, NULL);
/* Initialize the rest of the OVERLAPPED structure to zero. */
o.Internal = 0;
o.InternalHigh = 0;
o.Offset = 0;
o.OffsetHigh = 0;
assert(o.hEvent);
if (!ReadFile(modem->master, buf, avail, &read_bytes, &o))
GetOverlappedResult(modem->master, &o, &read_bytes, TRUE);
CloseHandle (o.hEvent);
if ((len = read_bytes))
#else
if ((len = read(modem[0].master, buf, 1024)))
#endif
{
int i;
printf("YYY %d - ", len);
for (i = 0; i < len; i++)
printf(" 0x%02x", buf[i] & 0xFF);
printf("\n");
t31_at_rx(t31_state, buf, len);
}
}
if (answered == 2)
{
if (t38_mode)
{
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
/* Bump the G.1050 models along */
when += (float) SAMPLES_PER_CHUNK/(float) SAMPLE_RATE;
/* Bump things along on the t38_terminal side */
span_log_bump_samples(t38_terminal_get_logging_state(t38_state), SAMPLES_PER_CHUNK);
t38_core = t38_terminal_get_t38_core_state(t38_state);
span_log_bump_samples(t38_core_get_logging_state(t38_core), SAMPLES_PER_CHUNK);
t38_terminal_send_timeout(t38_state, SAMPLES_PER_CHUNK);
t31_t38_send_timeout(t31_state, SAMPLES_PER_CHUNK);
}
else
{
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;
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;
if (log_audio)
{
outframes = sf_writef_short(wave_handle, out_amp, SAMPLES_PER_CHUNK);
if (outframes != SAMPLES_PER_CHUNK)
break;
}
/* Bump things along on the FAX machine side */
span_log_bump_samples(fax_get_logging_state(fax_state), SAMPLES_PER_CHUNK);
}
/* Bump things along on the FAX machine side */
span_log_bump_samples(t30_get_logging_state(t30), SAMPLES_PER_CHUNK);
/* Bump things along on the T.31 modem side */
t38_core = t31_get_t38_core_state(t31_state);
span_log_bump_samples(t38_core_get_logging_state(t38_core), SAMPLES_PER_CHUNK);
span_log_bump_samples(t31_get_logging_state(t31_state), SAMPLES_PER_CHUNK);
span_log_bump_samples(at_get_logging_state(t31_get_at_state(t31_state)), SAMPLES_PER_CHUNK);
}
}
if (t38_mode)
t38_terminal_release(t38_state);
if (decode_test_file)
{
if (sf_close_telephony(in_handle))
{
fprintf(stderr, " Cannot close audio file '%s'\n", decode_test_file);
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);
}
}
if (!done)
{
printf("Tests failed\n");
return 2;
}
return 0;
}
static int t30_tests(int t38_mode, int use_gui, int log_audio, int test_sending, int g1050_model_no, int g1050_speed_pattern_no)
{
t38_terminal_state_t *t38_state;
fax_state_t *fax_state;
int fast_send;
int fast_send_tcf;
int fast_blocks;
int msg_len;
int t30_len;
int t31_len;
int t38_version;
int without_pacing;
int use_tep;
int seq_no;
int i;
int k;
int outframes;
uint8_t fast_buf[1000];
uint8_t msg[1024];
double tx_when;
double rx_when;
t30_state_t *t30;
t38_core_state_t *t38_core;
logging_state_t *logging;
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];
SNDFILE *wave_handle;
SNDFILE *in_handle;
/* Test the T.31 modem against the full FAX machine in spandsp */
/* Set up the test environment */
t38_version = 1;
without_pacing = false;
use_tep = false;
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);
}
}
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);
}
}
srand48(0x1234567);
if ((path_a_to_b = g1050_init(g1050_model_no, g1050_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(g1050_model_no, g1050_speed_pattern_no, 100, 33)) == NULL)
{
fprintf(stderr, "Failed to start IP network path model\n");
exit(2);
}
t38_state = NULL;
fax_state = NULL;
if (test_sending)
{
if (t38_mode)
{
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);
}
else
{
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
{
if (t38_mode)
{
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);
}
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;
}
if (t38_mode)
{
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');
if (t38_mode)
logging = t38_terminal_get_logging_state(t38_state);
else
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, (t38_mode) ? "T.38" : "FAX");
if (t38_mode)
{
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");
}
else
{
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");
}
memset(silence, 0, sizeof(silence));
memset(t30_amp, 0, sizeof(t30_amp));
/* Now set up and run the T.31 modem */
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 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");
logging = at_get_logging_state(t31_get_at_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 (t38_mode)
{
t38_core = t31_get_t38_core_state(t31_state);
logging = t38_core_get_logging_state(t38_core);
span_log_set_level(logging, SPAN_LOG_DEBUG | SPAN_LOG_SHOW_TAG | SPAN_LOG_SHOW_SAMPLE_TIME);
span_log_set_tag(logging, "T.31");
t31_set_mode(t31_state, true);
t38_set_t38_version(t38_core, t38_version);
}
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)
{
if (countdown)
{
/* Deal with call setup, through the AT interface. */
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;
}
}
if (kick)
{
/* Work through the script */
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)
{
/* If we are sending TCF, its simply zeros */
memset(fast_buf, 0, 36);
if (fast_blocks == 1)
{
/* Tell the modem this is the end of the TCF data */
fast_buf[34] = DLE;
fast_buf[35] = ETX;
}
}
else
{
/* If we are sending image data, we need to make it look like genuine image data,
with proper EOL and RTC markers. */
if (fast_blocks > 1)
{
/* Create a chunk of white page, 1728 pixels wide. */
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;
}
}
else
{
/* Create the end of page condition. */
for (i = 0; i < 36; i += 3)
{
fast_buf[i] = 0x00;
fast_buf[i + 1] = 0x08;
fast_buf[i + 2] = 0x80;
}
/* Tell the modem this is the end of the image data. */
fast_buf[34] = DLE;
fast_buf[35] = ETX;
}
}
t31_at_rx(t31_state, (char *) fast_buf, 36);
if (--fast_blocks == 0)
fast_send = false;
}
if (t38_mode)
{
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
/* Bump the G.1050 models along */
when += (float) SAMPLES_PER_CHUNK/(float) SAMPLE_RATE;
/* Bump things along on the t38_terminal side */
span_log_bump_samples(t38_terminal_get_logging_state(t38_state), SAMPLES_PER_CHUNK);
t38_core = t38_terminal_get_t38_core_state(t38_state);
span_log_bump_samples(t38_core_get_logging_state(t38_core), SAMPLES_PER_CHUNK);
t38_terminal_send_timeout(t38_state, SAMPLES_PER_CHUNK);
t31_t38_send_timeout(t31_state, SAMPLES_PER_CHUNK);
}
else
{
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;
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;
if (log_audio)
{
outframes = sf_writef_short(wave_handle, out_amp, SAMPLES_PER_CHUNK);
if (outframes != SAMPLES_PER_CHUNK)
break;
}
/* Bump things along on the FAX machine side */
span_log_bump_samples(fax_get_logging_state(fax_state), SAMPLES_PER_CHUNK);
}
/* Bump things along on the FAX machine side */
span_log_bump_samples(t30_get_logging_state(t30), SAMPLES_PER_CHUNK);
/* Bump things along on the T.31 modem side */
t38_core = t31_get_t38_core_state(t31_state);
span_log_bump_samples(t38_core_get_logging_state(t38_core), SAMPLES_PER_CHUNK);
span_log_bump_samples(t31_get_logging_state(t31_state), SAMPLES_PER_CHUNK);
span_log_bump_samples(at_get_logging_state(t31_get_at_state(t31_state)), SAMPLES_PER_CHUNK);
}
if (t38_mode)
t38_terminal_release(t38_state);
if (decode_test_file)
{
if (sf_close_telephony(in_handle))
{
fprintf(stderr, " Cannot close audio file '%s'\n", decode_test_file);
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);
}
}
if (!done || !sequence_terminated)
{
printf("Tests failed\n");
return -1;
}
return 0;
}
int main(int argc, char *argv[])
{
int16_t t38_amp_b[SAMPLES_PER_CHUNK];
int16_t t30_amp_b[SAMPLES_PER_CHUNK];
int16_t out_amp[2*SAMPLES_PER_CHUNK];
int t38_len_b;
int t30_len_b;
int msg_len;
uint8_t msg[1024];
int log_audio;
int outframes;
SNDFILE *wave_handle;
int t38_version;
int use_ecm;
int use_tep;
int feedback_audio;
int use_transmit_on_idle;
const char *input_file_name;
int i;
int seq_no;
int g1050_model_no;
int g1050_speed_pattern_no;
double tx_when;
double rx_when;
int use_gui;
int supported_modems;
int opt;
t30_state_t *t30;
t38_core_state_t *t38_core;
logging_state_t *logging;
log_audio = false;
t38_version = 1;
use_ecm = false;
input_file_name = INPUT_FILE_NAME;
simulate_incrementing_repeats = false;
g1050_model_no = 0;
g1050_speed_pattern_no = 1;
use_gui = false;
use_tep = false;
feedback_audio = false;
use_transmit_on_idle = true;
supported_modems = T30_SUPPORT_V27TER | T30_SUPPORT_V29 | T30_SUPPORT_V17;
while ((opt = getopt(argc, argv, "efgi:Ilm:M:s:tv:")) != -1)
{
switch (opt)
{
case 'e':
use_ecm = true;
break;
case 'f':
feedback_audio = true;
break;
case 'g':
#if defined(ENABLE_GUI)
use_gui = true;
#else
fprintf(stderr, "Graphical monitoring not available\n");
exit(2);
#endif
break;
case 'i':
input_file_name = optarg;
break;
case 'I':
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 's':
g1050_speed_pattern_no = atoi(optarg);
break;
case 't':
use_tep = true;
break;
case 'v':
t38_version = atoi(optarg);
break;
default:
//usage();
exit(2);
break;
}
}
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_FILE_NAME_WAVE, 2)) == NULL)
{
fprintf(stderr, " Cannot create audio file '%s'\n", OUTPUT_FILE_NAME_WAVE);
exit(2);
}
}
srand48(0x1234567);
if ((path_a_to_b = g1050_init(g1050_model_no, g1050_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(g1050_model_no, g1050_speed_pattern_no, 100, 33)) == NULL)
{
fprintf(stderr, "Failed to start IP network path model\n");
exit(2);
}
if ((t38_state_a = t38_terminal_init(NULL, true, tx_packet_handler_a, &t38_state_b)) == NULL)
{
fprintf(stderr, "Cannot start the T.38 channel\n");
exit(2);
}
t30 = t38_terminal_get_t30_state(t38_state_a);
t38_core = t38_terminal_get_t38_core_state(t38_state_a);
t38_set_t38_version(t38_core, t38_version);
logging = t38_terminal_get_logging_state(t38_state_a);
span_log_set_level(logging, SPAN_LOG_DEBUG | SPAN_LOG_SHOW_TAG | SPAN_LOG_SHOW_SAMPLE_TIME);
span_log_set_tag(logging, "T.38-A");
logging = t38_core_get_logging_state(t38_core);
span_log_set_level(logging, SPAN_LOG_DEBUG | SPAN_LOG_SHOW_TAG | SPAN_LOG_SHOW_SAMPLE_TIME);
span_log_set_tag(logging, "T.38-A");
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-A");
t30_set_supported_modems(t30, supported_modems);
t30_set_tx_ident(t30, "11111111");
t30_set_tx_file(t30, input_file_name, -1, -1);
t30_set_phase_b_handler(t30, phase_b_handler, (void *) (intptr_t) 'A');
t30_set_phase_d_handler(t30, phase_d_handler, (void *) (intptr_t) 'A');
t30_set_phase_e_handler(t30, phase_e_handler, (void *) (intptr_t) 'A');
t30_set_ecm_capability(t30, use_ecm);
if (use_ecm)
t30_set_supported_compressions(t30, T30_SUPPORT_T4_1D_COMPRESSION | T30_SUPPORT_T4_2D_COMPRESSION | T30_SUPPORT_T6_COMPRESSION);
if ((t38_state_b = t38_gateway_init(NULL, tx_packet_handler_b, &t38_state_a)) == NULL)
{
fprintf(stderr, "Cannot start the T.38 channel\n");
exit(2);
}
t38_core = t38_gateway_get_t38_core_state(t38_state_b);
t38_gateway_set_transmit_on_idle(t38_state_b, use_transmit_on_idle);
t38_set_t38_version(t38_core, t38_version);
t38_gateway_set_ecm_capability(t38_state_b, use_ecm);
logging = t38_gateway_get_logging_state(t38_state_b);
span_log_set_level(logging, SPAN_LOG_DEBUG | SPAN_LOG_SHOW_TAG | SPAN_LOG_SHOW_SAMPLE_TIME);
span_log_set_tag(logging, "T.38-B");
logging = t38_core_get_logging_state(t38_core);
span_log_set_level(logging, SPAN_LOG_DEBUG | SPAN_LOG_SHOW_TAG | SPAN_LOG_SHOW_SAMPLE_TIME);
span_log_set_tag(logging, "T.38-B");
memset(t38_amp_b, 0, sizeof(t38_amp_b));
if ((fax_state_b = fax_init(NULL, false)) == NULL)
{
fprintf(stderr, "Cannot start FAX\n");
exit(2);
}
t30 = fax_get_t30_state(fax_state_b);
fax_set_transmit_on_idle(fax_state_b, use_transmit_on_idle);
fax_set_tep_mode(fax_state_b, use_tep);
t30_set_supported_modems(t30, supported_modems);
t30_set_tx_ident(t30, "22222222");
t30_set_tx_nsf(t30, (const uint8_t *) "\x50\x00\x00\x00Spandsp\x00", 12);
t30_set_rx_file(t30, OUTPUT_FILE_NAME, -1);
t30_set_phase_b_handler(t30, phase_b_handler, (void *) (intptr_t) 'B');
t30_set_phase_d_handler(t30, phase_d_handler, (void *) (intptr_t) 'B');
t30_set_phase_e_handler(t30, phase_e_handler, (void *) (intptr_t) 'B');
t30_set_ecm_capability(t30, use_ecm);
if (use_ecm)
t30_set_supported_compressions(t30, T30_SUPPORT_T4_1D_COMPRESSION | T30_SUPPORT_T4_2D_COMPRESSION | T30_SUPPORT_T6_COMPRESSION);
logging = fax_get_logging_state(fax_state_b);
span_log_set_level(logging, SPAN_LOG_DEBUG | SPAN_LOG_SHOW_TAG | SPAN_LOG_SHOW_SAMPLE_TIME);
span_log_set_tag(logging, "FAX-B ");
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-B ");
memset(t30_amp_b, 0, sizeof(t30_amp_b));
#if defined(ENABLE_GUI)
if (use_gui)
start_media_monitor();
#endif
for (;;)
{
logging = t38_terminal_get_logging_state(t38_state_a);
span_log_bump_samples(logging, SAMPLES_PER_CHUNK);
t38_core = t38_terminal_get_t38_core_state(t38_state_a);
logging = t38_core_get_logging_state(t38_core);
span_log_bump_samples(logging, SAMPLES_PER_CHUNK);
t30 = t38_terminal_get_t30_state(t38_state_a);
logging = t30_get_logging_state(t30);
span_log_bump_samples(logging, SAMPLES_PER_CHUNK);
logging = t38_gateway_get_logging_state(t38_state_b);
span_log_bump_samples(logging, SAMPLES_PER_CHUNK);
t38_core = t38_gateway_get_t38_core_state(t38_state_b);
logging = t38_core_get_logging_state(t38_core);
span_log_bump_samples(logging, SAMPLES_PER_CHUNK);
logging = fax_get_logging_state(fax_state_b);
span_log_bump_samples(logging, SAMPLES_PER_CHUNK);
t30 = fax_get_t30_state(fax_state_b);
logging = t30_get_logging_state(t30);
span_log_bump_samples(logging, SAMPLES_PER_CHUNK);
memset(out_amp, 0, sizeof(out_amp));
t38_terminal_send_timeout(t38_state_a, SAMPLES_PER_CHUNK);
t30_len_b = fax_tx(fax_state_b, t30_amp_b, 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_b < SAMPLES_PER_CHUNK)
{
memset(t30_amp_b + t30_len_b, 0, sizeof(int16_t)*(SAMPLES_PER_CHUNK - t30_len_b));
t30_len_b = SAMPLES_PER_CHUNK;
}
}
if (feedback_audio)
{
for (i = 0; i < t30_len_b; i++)
t30_amp_b[i] += t38_amp_b[i] >> 1;
}
if (log_audio)
{
for (i = 0; i < t30_len_b; i++)
out_amp[2*i + 1] = t30_amp_b[i];
}
if (t38_gateway_rx(t38_state_b, t30_amp_b, t30_len_b))
break;
t38_len_b = t38_gateway_tx(t38_state_b, t38_amp_b, SAMPLES_PER_CHUNK);
if (!use_transmit_on_idle)
{
if (t38_len_b < SAMPLES_PER_CHUNK)
{
memset(t38_amp_b + t38_len_b, 0, sizeof(int16_t)*(SAMPLES_PER_CHUNK - t38_len_b));
t38_len_b = SAMPLES_PER_CHUNK;
}
}
if (log_audio)
{
for (i = 0; i < t38_len_b; i++)
out_amp[2*i] = t38_amp_b[i];
}
if (fax_rx(fax_state_b, t38_amp_b, SAMPLES_PER_CHUNK))
break;
when += (float) SAMPLES_PER_CHUNK/(float) SAMPLE_RATE;
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 = t38_gateway_get_t38_core_state(t38_state_b);
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_a);
t38_core_rx_ifp_packet(t38_core, 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;
}
if (done[0] && done[1])
break;
#if defined(ENABLE_GUI)
if (use_gui)
media_monitor_update_display();
#endif
}
t38_terminal_release(t38_state_a);
fax_release(fax_state_b);
if (log_audio)
{
if (sf_close(wave_handle) != 0)
{
fprintf(stderr, " Cannot close audio file '%s'\n", OUTPUT_FILE_NAME_WAVE);
exit(2);
}
}
if (!succeeded[0] || !succeeded[1])
{
printf("Tests failed\n");
exit(2);
}
printf("Tests passed\n");
return 0;
}
int main(int argc, char *argv[])
{
t30_state_t *t30;
logging_state_t *logging;
const char *input_file_name;
int t38_version;
int caller;
int use_ecm;
int use_tep;
int options;
int supported_modems;
int fill_removal;
int opt;
int t38_terminal_operation;
uint32_t src_addr;
uint16_t src_port;
uint32_t dest_addr;
uint16_t dest_port;
caller = false;
use_ecm = false;
t38_version = 0;
options = 0;
input_file_name = INPUT_FILE_NAME;
fill_removal = false;
use_tep = false;
use_transmit_on_idle = true;
supported_modems = T30_SUPPORT_V27TER | T30_SUPPORT_V29 | T30_SUPPORT_V17;
t38_terminal_operation = true;
log_audio = false;
src_addr = 0;
src_port = 0;
dest_addr = 0;
dest_port = 0;
while ((opt = getopt(argc, argv, "cD:d:eFGi:lm:oS:s:tv:")) != -1)
{
switch (opt)
{
case 'c':
caller = true;
break;
case 'D':
dest_addr = parse_inet_addr(optarg);
break;
case 'd':
dest_port = atoi(optarg);
break;
case 'e':
use_ecm = true;
break;
case 'F':
fill_removal = true;
break;
case 'G':
t38_terminal_operation = false;
break;
case 'i':
input_file_name = optarg;
break;
case 'l':
log_audio = true;
break;
case 'm':
supported_modems = atoi(optarg);
break;
case 'o':
options = atoi(optarg);
break;
case 'S':
src_addr = parse_inet_addr(optarg);
break;
case 's':
src_port = atoi(optarg);
break;
case 't':
use_tep = true;
break;
case 'v':
t38_version = atoi(optarg);
break;
default:
//usage();
exit(2);
break;
}
}
printf("Using T.38 version %d\n", t38_version);
if (t38_terminal_operation)
{
if ((t38_terminal_state = t38_terminal_init(NULL, caller, tx_packet_handler, NULL)) == NULL)
{
fprintf(stderr, "Cannot start the T.38 channel\n");
exit(2);
}
t30 = t38_terminal_get_t30_state(t38_terminal_state);
t38_core = t38_terminal_get_t38_core_state(t38_terminal_state);
t38_set_t38_version(t38_core, t38_version);
t38_terminal_set_config(t38_terminal_state, options);
t38_terminal_set_tep_mode(t38_terminal_state, use_tep);
t38_terminal_set_fill_bit_removal(t38_terminal_state, fill_removal);
logging = t38_terminal_get_logging_state(t38_terminal_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");
logging = t38_core_get_logging_state(t38_core);
span_log_set_level(logging, SPAN_LOG_DEBUG | SPAN_LOG_SHOW_TAG | SPAN_LOG_SHOW_SAMPLE_TIME);
span_log_set_tag(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");
t30_set_supported_modems(t30, supported_modems);
t30_set_tx_ident(t30, "11111111");
t30_set_tx_nsf(t30, (const uint8_t *) "\x50\x00\x00\x00Spandsp\x00", 12);
if (caller)
t30_set_tx_file(t30, INPUT_TIFF_FILE_NAME, -1, -1);
else
t30_set_rx_file(t30, OUTPUT_TIFF_FILE_NAME, -1);
t30_set_phase_b_handler(t30, phase_b_handler, (void *) (intptr_t) 'A');
t30_set_phase_d_handler(t30, phase_d_handler, (void *) (intptr_t) 'A');
t30_set_phase_e_handler(t30, phase_e_handler, (void *) (intptr_t) 'A');
t30_set_ecm_capability(t30, use_ecm);
t30_set_supported_compressions(t30, T4_COMPRESSION_T4_1D | T4_COMPRESSION_T4_2D | T4_COMPRESSION_T6 | T4_COMPRESSION_T85);
if (pcap_scan_pkts(input_file_name, src_addr, src_port, dest_addr, dest_port, t38_terminal_timing_update, process_packet, NULL))
exit(2);
/* Push the time along, to flush out any remaining activity from the application. */
now.tv_sec += 60;
t38_terminal_timing_update(NULL, &now);
}
else
{
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);
}
}
if ((t38_gateway_state = t38_gateway_init(NULL, tx_packet_handler, NULL)) == NULL)
{
fprintf(stderr, "Cannot start the T.38 channel\n");
exit(2);
}
t38_core = t38_gateway_get_t38_core_state(t38_gateway_state);
t38_gateway_set_transmit_on_idle(t38_gateway_state, use_transmit_on_idle);
t38_set_t38_version(t38_core, t38_version);
t38_gateway_set_ecm_capability(t38_gateway_state, use_ecm);
logging = t38_gateway_get_logging_state(t38_gateway_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");
logging = t38_core_get_logging_state(t38_core);
span_log_set_level(logging, SPAN_LOG_DEBUG | SPAN_LOG_SHOW_TAG | SPAN_LOG_SHOW_SAMPLE_TIME);
span_log_set_tag(logging, "T.38");
if ((fax_state = fax_init(NULL, caller)) == NULL)
{
fprintf(stderr, "Cannot start FAX\n");
exit(2);
}
t30 = fax_get_t30_state(fax_state);
fax_set_transmit_on_idle(fax_state, use_transmit_on_idle);
fax_set_tep_mode(fax_state, use_tep);
t30_set_supported_modems(t30, supported_modems);
t30_set_tx_ident(t30, "22222222");
t30_set_tx_nsf(t30, (const uint8_t *) "\x50\x00\x00\x00Spandsp\x00", 12);
if (caller)
t30_set_tx_file(t30, INPUT_TIFF_FILE_NAME, -1, -1);
else
t30_set_rx_file(t30, OUTPUT_TIFF_FILE_NAME, -1);
t30_set_phase_b_handler(t30, phase_b_handler, (void *) (intptr_t) 'B');
t30_set_phase_d_handler(t30, phase_d_handler, (void *) (intptr_t) 'B');
t30_set_phase_e_handler(t30, phase_e_handler, (void *) (intptr_t) 'B');
t30_set_ecm_capability(t30, use_ecm);
t30_set_supported_compressions(t30, T4_COMPRESSION_T4_1D | T4_COMPRESSION_T4_2D | T4_COMPRESSION_T6);
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 ");
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 ");
if (pcap_scan_pkts(input_file_name, src_addr, src_port, dest_addr, dest_port, t38_gateway_timing_update, process_packet, NULL))
exit(2);
/* Push the time along, to flush out any remaining activity from the application. */
now.tv_sec += 60;
t38_gateway_timing_update(NULL, &now);
fax_release(fax_state);
t38_gateway_release(t38_gateway_state);
if (log_audio)
{
if (sf_close_telephony(wave_handle))
{
fprintf(stderr, " Cannot close audio file '%s'\n", OUTPUT_WAVE_FILE_NAME);
exit(2);
}
}
}
}
static int t38_gateway_timing_update(void *user_data, struct timeval *ts)
{
t30_state_t *t30;
logging_state_t *logging;
int samples;
int partial;
int64_t when;
int64_t diff;
int16_t t38_amp[SAMPLES_PER_CHUNK];
int16_t t30_amp[SAMPLES_PER_CHUNK];
int16_t out_amp[2*SAMPLES_PER_CHUNK];
int t38_len;
int t30_len;
int outframes;
int i;
memcpy(&now, ts, sizeof(now));
when = ts->tv_sec*1000000LL + ts->tv_usec;
if (current == 0)
{
if (started)
current = when;
return 0;
}
diff = when - current;
samples = diff/125LL;
while (samples > 0)
{
partial = (samples > SAMPLES_PER_CHUNK) ? SAMPLES_PER_CHUNK : samples;
//fprintf(stderr, "Update time by %d samples\n", partial);
logging = t38_gateway_get_logging_state(t38_gateway_state);
span_log_bump_samples(logging, partial);
logging = t38_core_get_logging_state(t38_core);
span_log_bump_samples(logging, partial);
logging = fax_get_logging_state(fax_state);
span_log_bump_samples(logging, partial);
t30 = fax_get_t30_state(fax_state);
logging = t30_get_logging_state(t30);
span_log_bump_samples(logging, partial);
memset(out_amp, 0, sizeof(out_amp));
t30_len = fax_tx(fax_state, t30_amp, partial);
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 < partial)
{
memset(t30_amp + t30_len, 0, sizeof(int16_t)*(partial - t30_len));
t30_len = partial;
}
}
if (log_audio)
{
for (i = 0; i < t30_len; i++)
out_amp[2*i + 1] = t30_amp[i];
}
if (t38_gateway_rx(t38_gateway_state, t30_amp, t30_len))
break;
t38_len = t38_gateway_tx(t38_gateway_state, t38_amp, partial);
if (!use_transmit_on_idle)
{
if (t38_len < partial)
{
memset(t38_amp + t38_len, 0, sizeof(int16_t)*(partial - t38_len));
t38_len = partial;
}
}
if (log_audio)
{
for (i = 0; i < t38_len; i++)
out_amp[2*i] = t38_amp[i];
}
if (fax_rx(fax_state, t38_amp, partial))
break;
if (log_audio)
{
outframes = sf_writef_short(wave_handle, out_amp, partial);
if (outframes != partial)
break;
}
if (done)
break;
current = when;
samples -= partial;
}
return 0;
}
int main(int argc, char *argv[])
{
SNDFILE *wave_handle;
SNDFILE *input_wave_handle;
int i;
int j;
int k;
struct machine_s *mc;
int outframes;
char buf[128 + 1];
int16_t silence[SAMPLES_PER_CHUNK];
int16_t out_amp[2*SAMPLES_PER_CHUNK];
int alldone;
const char *input_tiff_file_name;
const char *input_audio_file_name;
int log_audio;
int use_ecm;
int use_tep;
int use_transmit_on_idle;
#if defined(WITH_SPANDSP_INTERNALS)
int use_line_hits;
#endif
int polled_mode;
int reverse_flow;
int use_page_limits;
int supported_modems;
int signal_level;
int noise_level;
float signal_scaling;
time_t start_time;
time_t end_time;
int scan_line_time;
char *page_header_info;
int opt;
t30_state_t *t30;
logging_state_t *logging;
log_audio = false;
input_tiff_file_name = INPUT_TIFF_FILE_NAME;
input_audio_file_name = NULL;
use_ecm = false;
#if defined(WITH_SPANDSP_INTERNALS)
use_line_hits = false;
#endif
use_tep = false;
polled_mode = false;
page_header_info = NULL;
reverse_flow = false;
use_transmit_on_idle = true;
use_receiver_not_ready = false;
use_page_limits = false;
signal_level = 0;
noise_level = -99;
scan_line_time = 0;
supported_modems = T30_SUPPORT_V27TER | T30_SUPPORT_V29 | T30_SUPPORT_V17;
while ((opt = getopt(argc, argv, "ehH:i:I:lm:n:prRs:S:tTw:")) != -1)
{
switch (opt)
{
case 'e':
use_ecm = true;
break;
#if defined(WITH_SPANDSP_INTERNALS)
case 'h':
use_line_hits = true;
break;
#endif
case 'H':
page_header_info = optarg;
break;
case 'i':
input_tiff_file_name = optarg;
break;
case 'I':
input_audio_file_name = optarg;
break;
case 'l':
log_audio = true;
break;
case 'm':
supported_modems = atoi(optarg);
break;
case 'n':
noise_level = atoi(optarg);
break;
case 'p':
polled_mode = true;
break;
case 'r':
reverse_flow = true;
break;
case 'R':
use_receiver_not_ready = true;
break;
case 's':
signal_level = atoi(optarg);
break;
case 'S':
scan_line_time = atoi(optarg);
break;
case 't':
use_tep = true;
break;
case 'T':
use_page_limits = true;
break;
case 'w':
t30_state_to_wreck = atoi(optarg);
break;
default:
//usage();
exit(2);
break;
}
}
input_wave_handle = NULL;
if (input_audio_file_name)
{
if ((input_wave_handle = sf_open_telephony_read(input_audio_file_name, 1)) == NULL)
{
fprintf(stderr, " Cannot open audio file '%s'\n", input_audio_file_name);
exit(2);
}
}
wave_handle = NULL;
if (log_audio)
{
if ((wave_handle = sf_open_telephony_write(OUTPUT_FILE_NAME_WAVE, 2)) == NULL)
{
fprintf(stderr, " Cannot create audio file '%s'\n", OUTPUT_FILE_NAME_WAVE);
exit(2);
}
}
memset(silence, 0, sizeof(silence));
for (j = 0; j < FAX_MACHINES; j++)
{
machines[j].chan = j;
mc = &machines[j];
i = mc->chan + 1;
sprintf(buf, "%d%d%d%d%d%d%d%d", i, i, i, i, i, i, i, i);
if (reverse_flow)
mc->fax = fax_init(NULL, (mc->chan & 1) ? true : false);
else
mc->fax = fax_init(NULL, (mc->chan & 1) ? false : true);
mc->awgn = NULL;
signal_scaling = 1.0f;
if (noise_level > -99)
{
mc->awgn = awgn_init_dbm0(NULL, 1234567, noise_level);
signal_scaling = powf(10.0f, signal_level/20.0f);
printf("Signal scaling %f\n", signal_scaling);
}
fax_set_transmit_on_idle(mc->fax, use_transmit_on_idle);
fax_set_tep_mode(mc->fax, use_tep);
t30 = fax_get_t30_state(mc->fax);
t30_set_tx_ident(t30, buf);
t30_set_tx_sub_address(t30, "Sub-address");
t30_set_tx_sender_ident(t30, "Sender ID");
t30_set_tx_password(t30, "Password");
t30_set_tx_polled_sub_address(t30, "Polled sub-address");
t30_set_tx_selective_polling_address(t30, "Selective polling address");
t30_set_tx_page_header_info(t30, page_header_info);
t30_set_tx_nsf(t30, (const uint8_t *) "\x50\x00\x00\x00Spandsp\x00", 12);
t30_set_ecm_capability(t30, use_ecm);
t30_set_supported_t30_features(t30,
T30_SUPPORT_IDENTIFICATION
| T30_SUPPORT_SELECTIVE_POLLING
| T30_SUPPORT_SUB_ADDRESSING);
if ((mc->chan & 1))
t30_set_minimum_scan_line_time(t30, scan_line_time);
t30_set_supported_image_sizes(t30,
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,
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_supported_modems(t30, supported_modems);
if (use_ecm)
#if defined(SPANDSP_SUPPORT_T85)
t30_set_supported_compressions(t30, T30_SUPPORT_T4_1D_COMPRESSION | T30_SUPPORT_T4_2D_COMPRESSION | T30_SUPPORT_T6_COMPRESSION | T30_SUPPORT_T85_COMPRESSION);
#else
t30_set_supported_compressions(t30, T30_SUPPORT_T4_1D_COMPRESSION | T30_SUPPORT_T4_2D_COMPRESSION | T30_SUPPORT_T6_COMPRESSION);
#endif
if ((mc->chan & 1))
{
if (polled_mode)
{
if (use_page_limits)
t30_set_tx_file(t30, input_tiff_file_name, 3, 6);
else
t30_set_tx_file(t30, input_tiff_file_name, -1, -1);
}
else
{
sprintf(buf, "fax_tests_%d.tif", (mc->chan + 1)/2);
t30_set_rx_file(t30, buf, -1);
t30_set_rx_encoding(t30, T4_COMPRESSION_ITU_T6);
}
}
else
{
if (polled_mode)
{
sprintf(buf, "fax_tests_%d.tif", (mc->chan + 1)/2);
t30_set_rx_file(t30, buf, -1);
t30_set_rx_encoding(t30, T4_COMPRESSION_ITU_T6);
}
else
{
if (use_page_limits)
t30_set_tx_file(t30, input_tiff_file_name, 3, 6);
else
t30_set_tx_file(t30, input_tiff_file_name, -1, -1);
}
}
t30_set_phase_b_handler(t30, phase_b_handler, (void *) (intptr_t) mc->chan + 'A');
t30_set_phase_d_handler(t30, phase_d_handler, (void *) (intptr_t) mc->chan + 'A');
t30_set_phase_e_handler(t30, phase_e_handler, (void *) (intptr_t) mc->chan + 'A');
t30_set_real_time_frame_handler(t30, real_time_frame_handler, (void *) (intptr_t) mc->chan + 'A');
t30_set_document_handler(t30, document_handler, (void *) (intptr_t) mc->chan + 'A');
sprintf(mc->tag, "FAX-%d", j + 1);
logging = t30_get_logging_state(t30);
span_log_set_level(logging, SPAN_LOG_SHOW_SEVERITY | SPAN_LOG_SHOW_PROTOCOL | SPAN_LOG_SHOW_TAG | SPAN_LOG_SHOW_SAMPLE_TIME | SPAN_LOG_FLOW);
span_log_set_tag(logging, mc->tag);
if ((j & 1))
{
span_log_set_level(&t30->t4.rx.logging, SPAN_LOG_SHOW_SEVERITY | SPAN_LOG_SHOW_PROTOCOL | SPAN_LOG_SHOW_TAG | SPAN_LOG_SHOW_SAMPLE_TIME | SPAN_LOG_FLOW);
span_log_set_tag(&t30->t4.rx.logging, mc->tag);
}
else
{
span_log_set_level(&t30->t4.tx.logging, SPAN_LOG_SHOW_SEVERITY | SPAN_LOG_SHOW_PROTOCOL | SPAN_LOG_SHOW_TAG | SPAN_LOG_SHOW_SAMPLE_TIME | SPAN_LOG_FLOW);
span_log_set_tag(&t30->t4.tx.logging, mc->tag);
}
logging = fax_get_logging_state(mc->fax);
span_log_set_level(logging, SPAN_LOG_SHOW_SEVERITY | SPAN_LOG_SHOW_PROTOCOL | SPAN_LOG_SHOW_TAG | SPAN_LOG_SHOW_SAMPLE_TIME | SPAN_LOG_FLOW);
span_log_set_tag(logging, mc->tag);
memset(mc->amp, 0, sizeof(mc->amp));
mc->total_audio_time = 0;
mc->done = false;
}
time(&start_time);
for (;;)
{
alldone = true;
for (j = 0; j < FAX_MACHINES; j++)
{
mc = &machines[j];
if ((j & 1) == 0 && input_audio_file_name)
{
mc->len = sf_readf_short(input_wave_handle, mc->amp, SAMPLES_PER_CHUNK);
if (mc->len == 0)
break;
}
else
{
mc->len = fax_tx(mc->fax, mc->amp, SAMPLES_PER_CHUNK);
if (mc->awgn)
{
for (k = 0; k < mc->len; k++)
mc->amp[k] = ((int16_t) (mc->amp[k]*signal_scaling)) + awgn(mc->awgn);
}
}
mc->total_audio_time += 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 (mc->len < SAMPLES_PER_CHUNK)
{
memset(mc->amp + mc->len, 0, sizeof(int16_t)*(SAMPLES_PER_CHUNK - mc->len));
mc->len = SAMPLES_PER_CHUNK;
}
}
t30 = fax_get_t30_state(mc->fax);
logging = t30_get_logging_state(t30);
span_log_bump_samples(logging, mc->len);
logging = fax_get_logging_state(mc->fax);
span_log_bump_samples(logging, mc->len);
if (log_audio)
{
for (k = 0; k < mc->len; k++)
out_amp[2*k + j] = mc->amp[k];
}
if (machines[j ^ 1].len < SAMPLES_PER_CHUNK)
memset(machines[j ^ 1].amp + machines[j ^ 1].len, 0, sizeof(int16_t)*(SAMPLES_PER_CHUNK - machines[j ^ 1].len));
t30 = fax_get_t30_state(mc->fax);
#if defined(WITH_SPANDSP_INTERNALS)
if (use_line_hits)
{
/* TODO: This applies very crude line hits. improve it */
if (t30->state == 22)
{
if (++mc->error_delay == 100)
{
fprintf(stderr, "HIT %d!\n", j);
mc->error_delay = 0;
for (k = 0; k < 5; k++)
mc->amp[k] = 0;
}
}
}
if (t30->state == t30_state_to_wreck)
memset(machines[j ^ 1].amp, 0, sizeof(int16_t)*SAMPLES_PER_CHUNK);
#endif
if (fax_rx(mc->fax, machines[j ^ 1].amp, SAMPLES_PER_CHUNK))
break;
if (!mc->done)
alldone = false;
}
if (log_audio)
{
outframes = sf_writef_short(wave_handle, out_amp, SAMPLES_PER_CHUNK);
if (outframes != SAMPLES_PER_CHUNK)
break;
}
if (alldone || j < FAX_MACHINES)
break;
}
time(&end_time);
for (j = 0; j < FAX_MACHINES; j++)
{
mc = &machines[j];
fax_release(mc->fax);
}
if (log_audio)
{
if (sf_close(wave_handle))
{
fprintf(stderr, " Cannot close audio file '%s'\n", OUTPUT_FILE_NAME_WAVE);
exit(2);
}
}
if (input_audio_file_name)
{
if (sf_close(input_wave_handle))
{
fprintf(stderr, " Cannot close audio file '%s'\n", input_audio_file_name);
exit(2);
}
}
printf("Total audio time = %ds (wall time %ds)\n", machines[0].total_audio_time/8000, (int) (end_time - start_time));
return 0;
}