Benny Prijono | 60b980e | 2006-04-03 22:41:26 +0000 | [diff] [blame^] | 1 | /* $Id$ */ |
| 2 | /* |
| 3 | * Copyright (C) 2003-2006 Benny Prijono <benny@prijono.org> |
| 4 | * |
| 5 | * This program is free software; you can redistribute it and/or modify |
| 6 | * it under the terms of the GNU General Public License as published by |
| 7 | * the Free Software Foundation; either version 2 of the License, or |
| 8 | * (at your option) any later version. |
| 9 | * |
| 10 | * This program is distributed in the hope that it will be useful, |
| 11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 13 | * GNU General Public License for more details. |
| 14 | * |
| 15 | * You should have received a copy of the GNU General Public License |
| 16 | * along with this program; if not, write to the Free Software |
| 17 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
| 18 | */ |
| 19 | |
| 20 | |
| 21 | /* Include all headers. */ |
| 22 | #include <pjsip.h> |
| 23 | #include <pjmedia.h> |
| 24 | #include <pjmedia-codec.h> |
| 25 | #include <pjsip_ua.h> |
| 26 | #include <pjsip_simple.h> |
| 27 | #include <pjlib-util.h> |
| 28 | #include <pjlib.h> |
| 29 | |
| 30 | #include <stdlib.h> |
| 31 | |
| 32 | #define THIS_FILE "siprtp.c" |
| 33 | #define MAX_CALLS 1024 |
| 34 | #define RTP_START_PORT 44100 |
| 35 | |
| 36 | |
| 37 | /* A bidirectional media stream */ |
| 38 | struct media_stream |
| 39 | { |
| 40 | /* Static: */ |
| 41 | pj_uint16_t port; /* RTP port (RTCP is +1) */ |
| 42 | |
| 43 | /* Current stream info: */ |
| 44 | pjmedia_stream_info si; /* Current stream info. */ |
| 45 | |
| 46 | /* More info: */ |
| 47 | unsigned clock_rate; /* clock rate */ |
| 48 | unsigned samples_per_frame; /* samples per frame */ |
| 49 | unsigned bytes_per_frame; /* frame size. */ |
| 50 | |
| 51 | /* Sockets: */ |
| 52 | pj_sock_t rtp_sock; /* RTP socket. */ |
| 53 | pj_sock_t rtcp_sock; /* RTCP socket. */ |
| 54 | |
| 55 | /* RTP session: */ |
| 56 | pjmedia_rtp_session out_sess; /* outgoing RTP session */ |
| 57 | pjmedia_rtp_session in_sess; /* incoming RTP session */ |
| 58 | |
| 59 | /* RTCP stats: */ |
| 60 | pjmedia_rtcp_session rtcp; /* incoming RTCP session. */ |
| 61 | pjmedia_rtcp_pkt rem_rtcp; /* received RTCP stat. */ |
| 62 | |
| 63 | /* Thread: */ |
| 64 | pj_bool_t thread_quit_flag; /* worker thread quit flag */ |
| 65 | pj_thread_t *thread; /* RTP/RTCP worker thread */ |
| 66 | }; |
| 67 | |
| 68 | |
| 69 | struct call |
| 70 | { |
| 71 | unsigned index; |
| 72 | pjsip_inv_session *inv; |
| 73 | unsigned media_count; |
| 74 | struct media_stream media[2]; |
| 75 | }; |
| 76 | |
| 77 | |
| 78 | static struct app |
| 79 | { |
| 80 | unsigned max_calls; |
| 81 | unsigned thread_count; |
| 82 | int sip_port; |
| 83 | int rtp_start_port; |
| 84 | char *local_addr; |
| 85 | pj_str_t local_uri; |
| 86 | pj_str_t local_contact; |
| 87 | |
| 88 | pj_str_t uri_to_call; |
| 89 | |
| 90 | pj_caching_pool cp; |
| 91 | pj_pool_t *pool; |
| 92 | |
| 93 | pjsip_endpoint *sip_endpt; |
| 94 | pj_bool_t thread_quit; |
| 95 | pj_thread_t *thread[1]; |
| 96 | |
| 97 | pjmedia_endpt *med_endpt; |
| 98 | struct call call[MAX_CALLS]; |
| 99 | } app; |
| 100 | |
| 101 | |
| 102 | |
| 103 | /* |
| 104 | * Prototypes: |
| 105 | */ |
| 106 | |
| 107 | /* Callback to be called when SDP negotiation is done in the call: */ |
| 108 | static void call_on_media_update( pjsip_inv_session *inv, |
| 109 | pj_status_t status); |
| 110 | |
| 111 | /* Callback to be called when invite session's state has changed: */ |
| 112 | static void call_on_state_changed( pjsip_inv_session *inv, |
| 113 | pjsip_event *e); |
| 114 | |
| 115 | /* Callback to be called when dialog has forked: */ |
| 116 | static void call_on_forked(pjsip_inv_session *inv, pjsip_event *e); |
| 117 | |
| 118 | /* Callback to be called to handle incoming requests outside dialogs: */ |
| 119 | static pj_bool_t on_rx_request( pjsip_rx_data *rdata ); |
| 120 | |
| 121 | /* Worker thread prototype */ |
| 122 | static int worker_thread(void *arg); |
| 123 | |
| 124 | /* Create SDP for call */ |
| 125 | static pj_status_t create_sdp( pj_pool_t *pool, |
| 126 | struct call *call, |
| 127 | pjmedia_sdp_session **p_sdp); |
| 128 | |
| 129 | /* Destroy the call's media */ |
| 130 | static void destroy_call_media(unsigned call_index); |
| 131 | |
| 132 | /* Display error */ |
| 133 | static void app_perror(const char *sender, const char *title, |
| 134 | pj_status_t status); |
| 135 | |
| 136 | |
| 137 | /* This is a PJSIP module to be registered by application to handle |
| 138 | * incoming requests outside any dialogs/transactions. The main purpose |
| 139 | * here is to handle incoming INVITE request message, where we will |
| 140 | * create a dialog and INVITE session for it. |
| 141 | */ |
| 142 | static pjsip_module mod_siprtp = |
| 143 | { |
| 144 | NULL, NULL, /* prev, next. */ |
| 145 | { "mod-siprtpapp", 13 }, /* Name. */ |
| 146 | -1, /* Id */ |
| 147 | PJSIP_MOD_PRIORITY_APPLICATION, /* Priority */ |
| 148 | NULL, /* load() */ |
| 149 | NULL, /* start() */ |
| 150 | NULL, /* stop() */ |
| 151 | NULL, /* unload() */ |
| 152 | &on_rx_request, /* on_rx_request() */ |
| 153 | NULL, /* on_rx_response() */ |
| 154 | NULL, /* on_tx_request. */ |
| 155 | NULL, /* on_tx_response() */ |
| 156 | NULL, /* on_tsx_state() */ |
| 157 | }; |
| 158 | |
| 159 | |
| 160 | /* |
| 161 | * Init SIP stack |
| 162 | */ |
| 163 | static pj_status_t init_sip() |
| 164 | { |
| 165 | unsigned i; |
| 166 | pj_status_t status; |
| 167 | |
| 168 | /* init PJLIB-UTIL: */ |
| 169 | status = pjlib_util_init(); |
| 170 | PJ_ASSERT_RETURN(status == PJ_SUCCESS, status); |
| 171 | |
| 172 | /* Must create a pool factory before we can allocate any memory. */ |
| 173 | pj_caching_pool_init(&app.cp, &pj_pool_factory_default_policy, 0); |
| 174 | |
| 175 | /* Create application pool for misc. */ |
| 176 | app.pool = pj_pool_create(&app.cp.factory, "app", 1000, 1000, NULL); |
| 177 | |
| 178 | /* Create global endpoint: */ |
| 179 | { |
| 180 | const pj_str_t *hostname; |
| 181 | const char *endpt_name; |
| 182 | |
| 183 | /* Endpoint MUST be assigned a globally unique name. |
| 184 | * The name will be used as the hostname in Warning header. |
| 185 | */ |
| 186 | |
| 187 | /* For this implementation, we'll use hostname for simplicity */ |
| 188 | hostname = pj_gethostname(); |
| 189 | endpt_name = hostname->ptr; |
| 190 | |
| 191 | /* Create the endpoint: */ |
| 192 | |
| 193 | status = pjsip_endpt_create(&app.cp.factory, endpt_name, |
| 194 | &app.sip_endpt); |
| 195 | PJ_ASSERT_RETURN(status == PJ_SUCCESS, status); |
| 196 | } |
| 197 | |
| 198 | |
| 199 | /* Add UDP transport. */ |
| 200 | { |
| 201 | pj_sockaddr_in addr; |
| 202 | |
| 203 | addr.sin_family = PJ_AF_INET; |
| 204 | addr.sin_addr.s_addr = 0; |
| 205 | addr.sin_port = pj_htons((pj_uint16_t)app.sip_port); |
| 206 | |
| 207 | status = pjsip_udp_transport_start( app.sip_endpt, &addr, NULL, |
| 208 | 1, NULL); |
| 209 | if (status != PJ_SUCCESS) |
| 210 | return status; |
| 211 | } |
| 212 | |
| 213 | /* |
| 214 | * Init transaction layer. |
| 215 | * This will create/initialize transaction hash tables etc. |
| 216 | */ |
| 217 | status = pjsip_tsx_layer_init_module(app.sip_endpt); |
| 218 | PJ_ASSERT_RETURN(status == PJ_SUCCESS, status); |
| 219 | |
| 220 | /* Initialize UA layer. */ |
| 221 | status = pjsip_ua_init_module( app.sip_endpt, NULL ); |
| 222 | PJ_ASSERT_RETURN(status == PJ_SUCCESS, status); |
| 223 | |
| 224 | /* Init invite session module. */ |
| 225 | { |
| 226 | pjsip_inv_callback inv_cb; |
| 227 | |
| 228 | /* Init the callback for INVITE session: */ |
| 229 | pj_memset(&inv_cb, 0, sizeof(inv_cb)); |
| 230 | inv_cb.on_state_changed = &call_on_state_changed; |
| 231 | inv_cb.on_new_session = &call_on_forked; |
| 232 | inv_cb.on_media_update = &call_on_media_update; |
| 233 | |
| 234 | /* Initialize invite session module: */ |
| 235 | status = pjsip_inv_usage_init(app.sip_endpt, &inv_cb); |
| 236 | PJ_ASSERT_RETURN(status == PJ_SUCCESS, 1); |
| 237 | } |
| 238 | |
| 239 | /* Register our module to receive incoming requests. */ |
| 240 | status = pjsip_endpt_register_module( app.sip_endpt, &mod_siprtp); |
| 241 | PJ_ASSERT_RETURN(status == PJ_SUCCESS, status); |
| 242 | |
| 243 | |
| 244 | /* Start worker threads */ |
| 245 | for (i=0; i<app.thread_count; ++i) { |
| 246 | pj_thread_create( app.pool, "app", &worker_thread, NULL, |
| 247 | 0, 0, &app.thread[i]); |
| 248 | } |
| 249 | |
| 250 | /* Done */ |
| 251 | return PJ_SUCCESS; |
| 252 | } |
| 253 | |
| 254 | |
| 255 | /* |
| 256 | * Destroy SIP |
| 257 | */ |
| 258 | static void destroy_sip() |
| 259 | { |
| 260 | unsigned i; |
| 261 | |
| 262 | app.thread_quit = 1; |
| 263 | for (i=0; i<app.thread_count; ++i) { |
| 264 | if (app.thread[i]) { |
| 265 | pj_thread_join(app.thread[i]); |
| 266 | pj_thread_destroy(app.thread[i]); |
| 267 | app.thread[i] = NULL; |
| 268 | } |
| 269 | } |
| 270 | |
| 271 | if (app.sip_endpt) { |
| 272 | pjsip_endpt_destroy(app.sip_endpt); |
| 273 | app.sip_endpt = NULL; |
| 274 | } |
| 275 | |
| 276 | if (app.pool) { |
| 277 | pj_pool_release(app.pool); |
| 278 | app.pool = NULL; |
| 279 | pj_caching_pool_destroy(&app.cp); |
| 280 | } |
| 281 | } |
| 282 | |
| 283 | |
| 284 | /* |
| 285 | * Init media stack. |
| 286 | */ |
| 287 | static pj_status_t init_media() |
| 288 | { |
| 289 | pj_ioqueue_t *ioqueue; |
| 290 | unsigned i, count; |
| 291 | pj_uint16_t rtp_port; |
| 292 | pj_str_t temp; |
| 293 | pj_sockaddr_in addr; |
| 294 | pj_status_t status; |
| 295 | |
| 296 | |
| 297 | /* Get the ioqueue from the SIP endpoint */ |
| 298 | ioqueue = pjsip_endpt_get_ioqueue(app.sip_endpt); |
| 299 | |
| 300 | |
| 301 | /* Initialize media endpoint so that at least error subsystem is properly |
| 302 | * initialized. |
| 303 | */ |
| 304 | status = pjmedia_endpt_create(&app.cp.factory, ioqueue, 1, |
| 305 | &app.med_endpt); |
| 306 | PJ_ASSERT_RETURN(status == PJ_SUCCESS, status); |
| 307 | |
| 308 | |
| 309 | /* Determine address to bind socket */ |
| 310 | pj_memset(&addr, 0, sizeof(addr)); |
| 311 | addr.sin_family = PJ_AF_INET; |
| 312 | i = pj_inet_aton(pj_cstr(&temp, app.local_addr), &addr.sin_addr); |
| 313 | if (i == 0) { |
| 314 | PJ_LOG(3,(THIS_FILE, |
| 315 | "Error: invalid local address %s (expecting IP)", |
| 316 | app.local_addr)); |
| 317 | return -1; |
| 318 | } |
| 319 | |
| 320 | |
| 321 | /* RTP port counter */ |
| 322 | rtp_port = (pj_uint16_t)(app.rtp_start_port & 0xFFFE); |
| 323 | |
| 324 | |
| 325 | /* Init media sockets. */ |
| 326 | for (i=0, count=0; i<app.max_calls; ++i, ++count) { |
| 327 | |
| 328 | int retry; |
| 329 | |
| 330 | app.call[i].index = i; |
| 331 | |
| 332 | /* Repeat binding media socket to next port when fails to bind |
| 333 | * to current port number. |
| 334 | */ |
| 335 | retry = 0; |
| 336 | do { |
| 337 | struct media_stream *m = &app.call[i].media[0]; |
| 338 | |
| 339 | ++retry; |
| 340 | rtp_port += 2; |
| 341 | m->port = rtp_port; |
| 342 | |
| 343 | /* Create and bind RTP socket */ |
| 344 | status = pj_sock_socket(PJ_AF_INET, PJ_SOCK_DGRAM, 0, |
| 345 | &m->rtp_sock); |
| 346 | if (status != PJ_SUCCESS) |
| 347 | goto on_error; |
| 348 | |
| 349 | addr.sin_port = pj_htons(rtp_port); |
| 350 | status = pj_sock_bind(m->rtp_sock, &addr, sizeof(addr)); |
| 351 | if (status != PJ_SUCCESS) { |
| 352 | pj_sock_close(m->rtp_sock), m->rtp_sock=0; |
| 353 | continue; |
| 354 | } |
| 355 | |
| 356 | |
| 357 | /* Create and bind RTCP socket */ |
| 358 | status = pj_sock_socket(PJ_AF_INET, PJ_SOCK_DGRAM, 0, |
| 359 | &m->rtcp_sock); |
| 360 | if (status != PJ_SUCCESS) |
| 361 | goto on_error; |
| 362 | |
| 363 | addr.sin_port = pj_htons((pj_uint16_t)(rtp_port+1)); |
| 364 | status = pj_sock_bind(m->rtcp_sock, &addr, sizeof(addr)); |
| 365 | if (status != PJ_SUCCESS) { |
| 366 | pj_sock_close(m->rtp_sock), m->rtp_sock=0; |
| 367 | pj_sock_close(m->rtcp_sock), m->rtcp_sock=0; |
| 368 | continue; |
| 369 | } |
| 370 | |
| 371 | } while (status != PJ_SUCCESS && retry < 100); |
| 372 | |
| 373 | if (status != PJ_SUCCESS) |
| 374 | goto on_error; |
| 375 | |
| 376 | } |
| 377 | |
| 378 | /* Done */ |
| 379 | return PJ_SUCCESS; |
| 380 | |
| 381 | on_error: |
| 382 | for (i=0; i<count; ++i) { |
| 383 | struct media_stream *m = &app.call[i].media[0]; |
| 384 | |
| 385 | pj_sock_close(m->rtp_sock), m->rtp_sock=0; |
| 386 | pj_sock_close(m->rtcp_sock), m->rtcp_sock=0; |
| 387 | } |
| 388 | |
| 389 | return status; |
| 390 | } |
| 391 | |
| 392 | |
| 393 | /* |
| 394 | * Destroy media. |
| 395 | */ |
| 396 | static void destroy_media() |
| 397 | { |
| 398 | unsigned i; |
| 399 | |
| 400 | for (i=0; i<app.max_calls; ++i) { |
| 401 | struct media_stream *m = &app.call[i].media[0]; |
| 402 | |
| 403 | if (m->rtp_sock) |
| 404 | pj_sock_close(m->rtp_sock), m->rtp_sock = 0; |
| 405 | |
| 406 | if (m->rtcp_sock) |
| 407 | pj_sock_close(m->rtcp_sock), m->rtcp_sock = 0; |
| 408 | } |
| 409 | |
| 410 | if (app.med_endpt) { |
| 411 | pjmedia_endpt_destroy(app.med_endpt); |
| 412 | app.med_endpt = NULL; |
| 413 | } |
| 414 | } |
| 415 | |
| 416 | |
| 417 | /* |
| 418 | * Make outgoing call. |
| 419 | */ |
| 420 | static pj_status_t make_call(const pj_str_t *dst_uri) |
| 421 | { |
| 422 | unsigned i; |
| 423 | struct call *call; |
| 424 | pjsip_dialog *dlg; |
| 425 | pjmedia_sdp_session *sdp; |
| 426 | pjsip_tx_data *tdata; |
| 427 | pj_status_t status; |
| 428 | |
| 429 | |
| 430 | /* Find unused call slot */ |
| 431 | for (i=0; i<app.max_calls; ++i) { |
| 432 | if (app.call[i].inv == NULL) |
| 433 | break; |
| 434 | } |
| 435 | |
| 436 | if (i == app.max_calls) |
| 437 | return PJ_ETOOMANY; |
| 438 | |
| 439 | call = &app.call[i]; |
| 440 | |
| 441 | /* Create UAC dialog */ |
| 442 | status = pjsip_dlg_create_uac( pjsip_ua_instance(), |
| 443 | &app.local_uri, /* local URI */ |
| 444 | &app.local_contact, /* local Contact */ |
| 445 | dst_uri, /* remote URI */ |
| 446 | dst_uri, /* remote target */ |
| 447 | &dlg); /* dialog */ |
| 448 | if (status != PJ_SUCCESS) |
| 449 | return status; |
| 450 | |
| 451 | /* Create SDP */ |
| 452 | create_sdp( dlg->pool, call, &sdp); |
| 453 | |
| 454 | /* Create the INVITE session. */ |
| 455 | status = pjsip_inv_create_uac( dlg, sdp, 0, &call->inv); |
| 456 | if (status != PJ_SUCCESS) { |
| 457 | pjsip_dlg_terminate(dlg); |
| 458 | return status; |
| 459 | } |
| 460 | |
| 461 | |
| 462 | /* Attach call data to invite session */ |
| 463 | call->inv->mod_data[mod_siprtp.id] = call; |
| 464 | |
| 465 | |
| 466 | /* Create initial INVITE request. |
| 467 | * This INVITE request will contain a perfectly good request and |
| 468 | * an SDP body as well. |
| 469 | */ |
| 470 | status = pjsip_inv_invite(call->inv, &tdata); |
| 471 | PJ_ASSERT_RETURN(status == PJ_SUCCESS, status); |
| 472 | |
| 473 | |
| 474 | /* Send initial INVITE request. |
| 475 | * From now on, the invite session's state will be reported to us |
| 476 | * via the invite session callbacks. |
| 477 | */ |
| 478 | status = pjsip_inv_send_msg(call->inv, tdata); |
| 479 | PJ_ASSERT_RETURN(status == PJ_SUCCESS, status); |
| 480 | |
| 481 | |
| 482 | return PJ_SUCCESS; |
| 483 | } |
| 484 | |
| 485 | |
| 486 | /* |
| 487 | * Receive incoming call |
| 488 | */ |
| 489 | static void process_incoming_call(pjsip_rx_data *rdata) |
| 490 | { |
| 491 | unsigned i; |
| 492 | struct call *call; |
| 493 | pjsip_dialog *dlg; |
| 494 | pjmedia_sdp_session *sdp; |
| 495 | pjsip_tx_data *tdata; |
| 496 | pj_status_t status; |
| 497 | |
| 498 | /* Find free call slot */ |
| 499 | for (i=0; i<app.max_calls; ++i) { |
| 500 | if (app.call[i].inv == NULL) |
| 501 | break; |
| 502 | } |
| 503 | |
| 504 | if (i == app.max_calls) { |
| 505 | const pj_str_t reason = pj_str("Too many calls"); |
| 506 | pjsip_endpt_respond_stateless( app.sip_endpt, rdata, |
| 507 | 500, &reason, |
| 508 | NULL, NULL); |
| 509 | return; |
| 510 | } |
| 511 | |
| 512 | call = &app.call[i]; |
| 513 | |
| 514 | /* Create UAS dialog */ |
| 515 | status = pjsip_dlg_create_uas( pjsip_ua_instance(), rdata, |
| 516 | &app.local_contact, &dlg); |
| 517 | if (status != PJ_SUCCESS) { |
| 518 | const pj_str_t reason = pj_str("Unable to create dialog"); |
| 519 | pjsip_endpt_respond_stateless( app.sip_endpt, rdata, |
| 520 | 500, &reason, |
| 521 | NULL, NULL); |
| 522 | return; |
| 523 | } |
| 524 | |
| 525 | /* Create SDP */ |
| 526 | create_sdp( dlg->pool, call, &sdp); |
| 527 | |
| 528 | /* Create UAS invite session */ |
| 529 | status = pjsip_inv_create_uas( dlg, rdata, sdp, 0, &call->inv); |
| 530 | if (status != PJ_SUCCESS) { |
| 531 | pjsip_dlg_terminate(dlg); |
| 532 | return; |
| 533 | } |
| 534 | |
| 535 | /* Attach call data to invite session */ |
| 536 | call->inv->mod_data[mod_siprtp.id] = call; |
| 537 | |
| 538 | /* Create 200 response .*/ |
| 539 | status = pjsip_inv_initial_answer(call->inv, rdata, 200, |
| 540 | NULL, NULL, &tdata); |
| 541 | PJ_ASSERT_ON_FAIL(status == PJ_SUCCESS, return); |
| 542 | |
| 543 | /* Send the 200 response. */ |
| 544 | status = pjsip_inv_send_msg(call->inv, tdata); |
| 545 | PJ_ASSERT_ON_FAIL(status == PJ_SUCCESS, return); |
| 546 | |
| 547 | |
| 548 | /* Done */ |
| 549 | } |
| 550 | |
| 551 | |
| 552 | /* Callback to be called when dialog has forked: */ |
| 553 | static void call_on_forked(pjsip_inv_session *inv, pjsip_event *e) |
| 554 | { |
| 555 | PJ_UNUSED_ARG(inv); |
| 556 | PJ_UNUSED_ARG(e); |
| 557 | |
| 558 | PJ_TODO( HANDLE_FORKING ); |
| 559 | } |
| 560 | |
| 561 | |
| 562 | /* Callback to be called to handle incoming requests outside dialogs: */ |
| 563 | static pj_bool_t on_rx_request( pjsip_rx_data *rdata ) |
| 564 | { |
| 565 | /* Respond (statelessly) any non-INVITE requests with 500 */ |
| 566 | if (rdata->msg_info.msg->line.req.method.id != PJSIP_INVITE_METHOD) { |
| 567 | pj_str_t reason = pj_str("Unsupported Operation"); |
| 568 | pjsip_endpt_respond_stateless( app.sip_endpt, rdata, |
| 569 | 500, &reason, |
| 570 | NULL, NULL); |
| 571 | return PJ_TRUE; |
| 572 | } |
| 573 | |
| 574 | /* Handle incoming INVITE */ |
| 575 | process_incoming_call(rdata); |
| 576 | |
| 577 | /* Done */ |
| 578 | return PJ_TRUE; |
| 579 | } |
| 580 | |
| 581 | |
| 582 | /* Callback to be called when invite session's state has changed: */ |
| 583 | static void call_on_state_changed( pjsip_inv_session *inv, |
| 584 | pjsip_event *e) |
| 585 | { |
| 586 | PJ_UNUSED_ARG(e); |
| 587 | |
| 588 | if (inv->state == PJSIP_INV_STATE_DISCONNECTED) { |
| 589 | struct call *call = inv->mod_data[mod_siprtp.id]; |
| 590 | |
| 591 | if (!call) |
| 592 | return; |
| 593 | |
| 594 | call->inv = NULL; |
| 595 | inv->mod_data[mod_siprtp.id] = NULL; |
| 596 | |
| 597 | destroy_call_media(call->index); |
| 598 | } |
| 599 | } |
| 600 | |
| 601 | |
| 602 | /* Utility */ |
| 603 | static void app_perror(const char *sender, const char *title, |
| 604 | pj_status_t status) |
| 605 | { |
| 606 | char errmsg[PJ_ERR_MSG_SIZE]; |
| 607 | |
| 608 | pj_strerror(status, errmsg, sizeof(errmsg)); |
| 609 | PJ_LOG(3,(sender, "%s: %s [status=%d]", title, errmsg, status)); |
| 610 | } |
| 611 | |
| 612 | |
| 613 | /* Worker thread */ |
| 614 | static int worker_thread(void *arg) |
| 615 | { |
| 616 | PJ_UNUSED_ARG(arg); |
| 617 | |
| 618 | while (!app.thread_quit) { |
| 619 | pj_time_val timeout = {0, 10}; |
| 620 | pjsip_endpt_handle_events(app.sip_endpt, &timeout); |
| 621 | } |
| 622 | |
| 623 | return 0; |
| 624 | } |
| 625 | |
| 626 | |
| 627 | /* Usage */ |
| 628 | static const char *USAGE = |
| 629 | "Usage: \n" |
| 630 | " siprtp [options] => to start in server mode \n" |
| 631 | " siprtp [options] URL => to start in client mode \n" |
| 632 | "\n" |
| 633 | "where options are: \n" |
| 634 | " --count=N, -c Set number of calls to create (default:1) \n" |
| 635 | " --port=PORT -p Set local SIP port (default: 5060) \n" |
| 636 | " --rtp-port=PORT -r Set start of RTP port (default: 4000) \n" |
| 637 | " --ip-addr=IP -i Set local IP address to use (otherwise it will\n" |
| 638 | " try to determine local IP address from hostname)\n" |
| 639 | ; |
| 640 | |
| 641 | |
| 642 | /* Init application options */ |
| 643 | static pj_status_t init_options(int argc, char *argv[]) |
| 644 | { |
| 645 | static char ip_addr[32]; |
| 646 | static char local_uri[64]; |
| 647 | |
| 648 | struct pj_getopt_option long_options[] = { |
| 649 | { "count", 1, 0, 'c' }, |
| 650 | { "port", 1, 0, 'p' }, |
| 651 | { "rtp-port", 1, 0, 'r' }, |
| 652 | { "ip-addr", 1, 0, 'i' }, |
| 653 | { NULL, 0, 0, 0 }, |
| 654 | }; |
| 655 | int c; |
| 656 | int option_index; |
| 657 | |
| 658 | /* Get local IP address for the default IP address */ |
| 659 | { |
| 660 | const pj_str_t *hostname; |
| 661 | pj_sockaddr_in tmp_addr; |
| 662 | char *addr; |
| 663 | |
| 664 | hostname = pj_gethostname(); |
| 665 | pj_sockaddr_in_init(&tmp_addr, hostname, 0); |
| 666 | addr = pj_inet_ntoa(tmp_addr.sin_addr); |
| 667 | pj_ansi_strcpy(ip_addr, addr); |
| 668 | } |
| 669 | |
| 670 | /* Init default */ |
| 671 | app.max_calls = 1; |
| 672 | app.thread_count = 1; |
| 673 | app.sip_port = 5060; |
| 674 | app.rtp_start_port = 4000; |
| 675 | app.local_addr = ip_addr; |
| 676 | |
| 677 | /* Parse options */ |
| 678 | pj_optind = 0; |
| 679 | while((c=pj_getopt_long(argc,argv, "c:p:r:i:", |
| 680 | long_options, &option_index))!=-1) |
| 681 | { |
| 682 | switch (c) { |
| 683 | case 'c': |
| 684 | app.max_calls = atoi(pj_optarg); |
| 685 | if (app.max_calls < 0 || app.max_calls > MAX_CALLS) { |
| 686 | PJ_LOG(3,(THIS_FILE, "Invalid max calls value %s", pj_optarg)); |
| 687 | return 1; |
| 688 | } |
| 689 | break; |
| 690 | case 'p': |
| 691 | app.sip_port = atoi(pj_optarg); |
| 692 | break; |
| 693 | case 'r': |
| 694 | app.rtp_start_port = atoi(pj_optarg); |
| 695 | break; |
| 696 | case 'i': |
| 697 | app.local_addr = pj_optarg; |
| 698 | break; |
| 699 | default: |
| 700 | puts(USAGE); |
| 701 | return 1; |
| 702 | } |
| 703 | } |
| 704 | |
| 705 | /* Check if URL is specified */ |
| 706 | if (pj_optind < argc) |
| 707 | app.uri_to_call = pj_str(argv[pj_optind]); |
| 708 | |
| 709 | /* Build local URI and contact */ |
| 710 | pj_ansi_sprintf( local_uri, "sip:%s:%d", app.local_addr, app.sip_port); |
| 711 | app.local_uri = pj_str(local_uri); |
| 712 | app.local_contact = app.local_uri; |
| 713 | |
| 714 | |
| 715 | return PJ_SUCCESS; |
| 716 | } |
| 717 | |
| 718 | |
| 719 | ////////////////////////////////////////////////////////////////////////////// |
| 720 | /* |
| 721 | * MEDIA STUFFS |
| 722 | */ |
| 723 | |
| 724 | /* |
| 725 | * Create SDP session for a call. |
| 726 | */ |
| 727 | static pj_status_t create_sdp( pj_pool_t *pool, |
| 728 | struct call *call, |
| 729 | pjmedia_sdp_session **p_sdp) |
| 730 | { |
| 731 | pj_time_val tv; |
| 732 | pjmedia_sdp_session *sdp; |
| 733 | pjmedia_sdp_media *m; |
| 734 | pjmedia_sdp_attr *attr; |
| 735 | struct media_stream *audio = &call->media[0]; |
| 736 | |
| 737 | PJ_ASSERT_RETURN(pool && p_sdp, PJ_EINVAL); |
| 738 | |
| 739 | |
| 740 | /* Create and initialize basic SDP session */ |
| 741 | sdp = pj_pool_zalloc (pool, sizeof(pjmedia_sdp_session)); |
| 742 | |
| 743 | pj_gettimeofday(&tv); |
| 744 | sdp->origin.user = pj_str("pjsip-siprtp"); |
| 745 | sdp->origin.version = sdp->origin.id = tv.sec + 2208988800UL; |
| 746 | sdp->origin.net_type = pj_str("IN"); |
| 747 | sdp->origin.addr_type = pj_str("IP4"); |
| 748 | sdp->origin.addr = *pj_gethostname(); |
| 749 | sdp->name = pj_str("pjsip"); |
| 750 | |
| 751 | /* Since we only support one media stream at present, put the |
| 752 | * SDP connection line in the session level. |
| 753 | */ |
| 754 | sdp->conn = pj_pool_zalloc (pool, sizeof(pjmedia_sdp_conn)); |
| 755 | sdp->conn->net_type = pj_str("IN"); |
| 756 | sdp->conn->addr_type = pj_str("IP4"); |
| 757 | sdp->conn->addr = pj_str(app.local_addr); |
| 758 | |
| 759 | |
| 760 | /* SDP time and attributes. */ |
| 761 | sdp->time.start = sdp->time.stop = 0; |
| 762 | sdp->attr_count = 0; |
| 763 | |
| 764 | /* Create media stream 0: */ |
| 765 | |
| 766 | sdp->media_count = 1; |
| 767 | m = pj_pool_zalloc (pool, sizeof(pjmedia_sdp_media)); |
| 768 | sdp->media[0] = m; |
| 769 | |
| 770 | /* Standard media info: */ |
| 771 | m->desc.media = pj_str("audio"); |
| 772 | m->desc.port = audio->port; |
| 773 | m->desc.port_count = 1; |
| 774 | m->desc.transport = pj_str("RTP/AVP"); |
| 775 | |
| 776 | /* Add format and rtpmap for each codec. */ |
| 777 | m->desc.fmt_count = 1; |
| 778 | m->attr_count = 0; |
| 779 | |
| 780 | { |
| 781 | pjmedia_sdp_rtpmap rtpmap; |
| 782 | pjmedia_sdp_attr *attr; |
| 783 | |
| 784 | PJ_TODO(PARAMETERIZE_CODEC); |
| 785 | |
| 786 | m->desc.fmt[0] = pj_str("0"); |
| 787 | rtpmap.pt = pj_str("0"); |
| 788 | rtpmap.clock_rate = 8000; |
| 789 | rtpmap.enc_name = pj_str("pcmu"); |
| 790 | rtpmap.param.slen = 0; |
| 791 | |
| 792 | pjmedia_sdp_rtpmap_to_attr(pool, &rtpmap, &attr); |
| 793 | m->attr[m->attr_count++] = attr; |
| 794 | } |
| 795 | |
| 796 | /* Add sendrecv attribute. */ |
| 797 | attr = pj_pool_zalloc(pool, sizeof(pjmedia_sdp_attr)); |
| 798 | attr->name = pj_str("sendrecv"); |
| 799 | m->attr[m->attr_count++] = attr; |
| 800 | |
| 801 | #if 1 |
| 802 | /* |
| 803 | * Add support telephony event |
| 804 | */ |
| 805 | m->desc.fmt[m->desc.fmt_count++] = pj_str("101"); |
| 806 | /* Add rtpmap. */ |
| 807 | attr = pj_pool_zalloc(pool, sizeof(pjmedia_sdp_attr)); |
| 808 | attr->name = pj_str("rtpmap"); |
| 809 | attr->value = pj_str(":101 telephone-event/8000"); |
| 810 | m->attr[m->attr_count++] = attr; |
| 811 | /* Add fmtp */ |
| 812 | attr = pj_pool_zalloc(pool, sizeof(pjmedia_sdp_attr)); |
| 813 | attr->name = pj_str("fmtp"); |
| 814 | attr->value = pj_str(":101 0-15"); |
| 815 | m->attr[m->attr_count++] = attr; |
| 816 | #endif |
| 817 | |
| 818 | /* Done */ |
| 819 | *p_sdp = sdp; |
| 820 | |
| 821 | return PJ_SUCCESS; |
| 822 | } |
| 823 | |
| 824 | |
| 825 | /* Media thread */ |
| 826 | static int media_thread(void *arg) |
| 827 | { |
| 828 | struct media_stream *strm = arg; |
| 829 | char packet[1500]; |
| 830 | pj_time_val next_rtp, next_rtcp; |
| 831 | |
| 832 | pj_gettimeofday(&next_rtp); |
| 833 | next_rtp.msec += strm->samples_per_frame * 1000 / strm->clock_rate; |
| 834 | pj_time_val_normalize(&next_rtp); |
| 835 | |
| 836 | next_rtcp = next_rtp; |
| 837 | next_rtcp.sec += 5; |
| 838 | |
| 839 | |
| 840 | while (!strm->thread_quit_flag) { |
| 841 | pj_fd_set_t set; |
| 842 | pj_time_val now, lesser, timeout; |
| 843 | int rc; |
| 844 | |
| 845 | /* Determine how long to sleep */ |
| 846 | if (PJ_TIME_VAL_LT(next_rtp, next_rtcp)) |
| 847 | lesser = next_rtp; |
| 848 | else |
| 849 | lesser = next_rtcp; |
| 850 | |
| 851 | pj_gettimeofday(&now); |
| 852 | if (PJ_TIME_VAL_LTE(lesser, now)) |
| 853 | timeout.sec = timeout.msec = 0; |
| 854 | else { |
| 855 | timeout = lesser; |
| 856 | PJ_TIME_VAL_SUB(timeout, now); |
| 857 | } |
| 858 | |
| 859 | PJ_FD_ZERO(&set); |
| 860 | PJ_FD_SET(strm->rtp_sock, &set); |
| 861 | PJ_FD_SET(strm->rtcp_sock, &set); |
| 862 | |
| 863 | rc = pj_sock_select(FD_SETSIZE, &set, NULL, NULL, &timeout); |
| 864 | |
| 865 | if (PJ_FD_ISSET(strm->rtp_sock, &set)) { |
| 866 | |
| 867 | /* |
| 868 | * Process incoming RTP packet. |
| 869 | */ |
| 870 | pj_status_t status; |
| 871 | pj_ssize_t size; |
| 872 | const pjmedia_rtp_hdr *hdr; |
| 873 | const void *payload; |
| 874 | unsigned payload_len; |
| 875 | |
| 876 | size = sizeof(packet); |
| 877 | status = pj_sock_recv(strm->rtp_sock, packet, &size, 0); |
| 878 | if (status != PJ_SUCCESS) { |
| 879 | app_perror(THIS_FILE, "RTP recv() error", status); |
| 880 | continue; |
| 881 | } |
| 882 | |
| 883 | /* Decode RTP packet. */ |
| 884 | status = pjmedia_rtp_decode_rtp(&strm->in_sess, |
| 885 | packet, size, |
| 886 | &hdr, |
| 887 | &payload, &payload_len); |
| 888 | if (status != PJ_SUCCESS) { |
| 889 | app_perror(THIS_FILE, "RTP decode error", status); |
| 890 | continue; |
| 891 | } |
| 892 | |
| 893 | /* Update RTP session */ |
| 894 | status = pjmedia_rtp_session_update(&strm->in_sess, hdr); |
| 895 | if (status != PJ_SUCCESS && |
| 896 | status != PJMEDIA_RTP_ESESSPROBATION && |
| 897 | status != PJMEDIA_RTP_ESESSRESTART) |
| 898 | { |
| 899 | app_perror(THIS_FILE, "RTP update error", status); |
| 900 | PJ_LOG(3,(THIS_FILE,"RTP packet detail: pt=%d, seq=%d", |
| 901 | hdr->pt, pj_ntohs(hdr->seq))); |
| 902 | continue; |
| 903 | } |
| 904 | |
| 905 | /* Update the RTCP session. */ |
| 906 | pjmedia_rtcp_rx_rtp(&strm->rtcp, pj_ntohs(hdr->seq), |
| 907 | pj_ntohl(hdr->ts)); |
| 908 | |
| 909 | } else if (PJ_FD_ISSET(strm->rtcp_sock, &set)) { |
| 910 | |
| 911 | /* |
| 912 | * Process incoming RTCP |
| 913 | */ |
| 914 | pj_status_t status; |
| 915 | pj_ssize_t size; |
| 916 | |
| 917 | size = sizeof(packet); |
| 918 | status = pj_sock_recv( strm->rtcp_sock, packet, &size, 0); |
| 919 | if (status != PJ_SUCCESS) |
| 920 | app_perror(THIS_FILE, "Error receiving RTCP packet", status); |
| 921 | else { |
| 922 | if (size > sizeof(strm->rem_rtcp)) |
| 923 | PJ_LOG(3,(THIS_FILE, "Error: RTCP packet too large")); |
| 924 | else |
| 925 | pj_memcpy(&strm->rem_rtcp, packet, size); |
| 926 | } |
| 927 | } |
| 928 | |
| 929 | |
| 930 | pj_gettimeofday(&now); |
| 931 | |
| 932 | if (PJ_TIME_VAL_LTE(next_rtp, now)) { |
| 933 | /* |
| 934 | * Time to send RTP packet. |
| 935 | */ |
| 936 | pj_status_t status; |
| 937 | const pjmedia_rtp_hdr *hdr; |
| 938 | pj_ssize_t size; |
| 939 | int hdrlen; |
| 940 | |
| 941 | /* Format RTP header */ |
| 942 | status = pjmedia_rtp_encode_rtp( &strm->out_sess, strm->si.tx_pt, |
| 943 | 0, /* marker bit */ |
| 944 | strm->bytes_per_frame, |
| 945 | strm->samples_per_frame, |
| 946 | &hdr, &hdrlen); |
| 947 | if (status == PJ_SUCCESS) { |
| 948 | |
| 949 | /* Copy RTP header to packet */ |
| 950 | pj_memcpy(packet, hdr, hdrlen); |
| 951 | |
| 952 | /* Zero the payload */ |
| 953 | pj_memset(packet+hdrlen, 0, strm->bytes_per_frame); |
| 954 | |
| 955 | /* Send RTP packet */ |
| 956 | size = hdrlen + strm->bytes_per_frame; |
| 957 | status = pj_sock_sendto( strm->rtp_sock, packet, &size, 0, |
| 958 | &strm->si.rem_addr, |
| 959 | sizeof(strm->si.rem_addr)); |
| 960 | |
| 961 | if (status != PJ_SUCCESS) |
| 962 | app_perror(THIS_FILE, "Error sending RTP packet", status); |
| 963 | |
| 964 | } |
| 965 | |
| 966 | /* Update RTCP SR */ |
| 967 | pjmedia_rtcp_tx_rtp( &strm->rtcp, (pj_uint16_t)strm->bytes_per_frame); |
| 968 | |
| 969 | /* Schedule next send */ |
| 970 | next_rtp.msec += strm->samples_per_frame * 1000 / strm->clock_rate; |
| 971 | pj_time_val_normalize(&next_rtp); |
| 972 | } |
| 973 | |
| 974 | |
| 975 | if (PJ_TIME_VAL_LTE(next_rtcp, now)) { |
| 976 | /* |
| 977 | * Time to send RTCP packet. |
| 978 | */ |
| 979 | pjmedia_rtcp_pkt *rtcp_pkt; |
| 980 | int rtcp_len; |
| 981 | pj_sockaddr_in rem_addr; |
| 982 | pj_ssize_t size; |
| 983 | int port; |
| 984 | pj_status_t status; |
| 985 | |
| 986 | /* Build RTCP packet */ |
| 987 | pjmedia_rtcp_build_rtcp(&strm->rtcp, &rtcp_pkt, &rtcp_len); |
| 988 | |
| 989 | |
| 990 | /* Calculate address based on RTP address */ |
| 991 | rem_addr = strm->si.rem_addr; |
| 992 | port = pj_ntohs(strm->si.rem_addr.sin_port) + 1; |
| 993 | rem_addr.sin_port = pj_htons((pj_uint16_t)port); |
| 994 | |
| 995 | /* Send packet */ |
| 996 | size = rtcp_len; |
| 997 | status = pj_sock_sendto(strm->rtcp_sock, rtcp_pkt, &size, 0, |
| 998 | &rem_addr, sizeof(rem_addr)); |
| 999 | if (status != PJ_SUCCESS) { |
| 1000 | app_perror(THIS_FILE, "Error sending RTCP packet", status); |
| 1001 | } |
| 1002 | |
| 1003 | |
| 1004 | next_rtcp.sec += 5; |
| 1005 | } |
| 1006 | |
| 1007 | } |
| 1008 | |
| 1009 | return 0; |
| 1010 | } |
| 1011 | |
| 1012 | |
| 1013 | /* Callback to be called when SDP negotiation is done in the call: */ |
| 1014 | static void call_on_media_update( pjsip_inv_session *inv, |
| 1015 | pj_status_t status) |
| 1016 | { |
| 1017 | struct call *call; |
| 1018 | pj_pool_t *pool; |
| 1019 | struct media_stream *audio; |
| 1020 | pjmedia_sdp_session *local_sdp, *remote_sdp; |
| 1021 | |
| 1022 | |
| 1023 | call = inv->mod_data[mod_siprtp.id]; |
| 1024 | pool = inv->dlg->pool; |
| 1025 | audio = &call->media[0]; |
| 1026 | |
| 1027 | /* If this is a mid-call media update, then destroy existing media */ |
| 1028 | if (audio->thread != NULL) |
| 1029 | destroy_call_media(call->index); |
| 1030 | |
| 1031 | |
| 1032 | /* Do nothing if media negotiation has failed */ |
| 1033 | if (status != PJ_SUCCESS) { |
| 1034 | app_perror(THIS_FILE, "SDP negotiation failed", status); |
| 1035 | return; |
| 1036 | } |
| 1037 | |
| 1038 | |
| 1039 | /* Capture stream definition from the SDP */ |
| 1040 | pjmedia_sdp_neg_get_active_local(inv->neg, &local_sdp); |
| 1041 | pjmedia_sdp_neg_get_active_remote(inv->neg, &remote_sdp); |
| 1042 | |
| 1043 | status = pjmedia_stream_info_from_sdp(&audio->si, inv->pool, app.med_endpt, |
| 1044 | local_sdp, remote_sdp, 0); |
| 1045 | if (status != PJ_SUCCESS) { |
| 1046 | app_perror(THIS_FILE, "Error creating stream info from SDP", status); |
| 1047 | return; |
| 1048 | } |
| 1049 | |
| 1050 | |
| 1051 | audio->clock_rate = audio->si.fmt.sample_rate; |
| 1052 | audio->samples_per_frame = audio->clock_rate * 20 / 1000; |
| 1053 | audio->bytes_per_frame = 160; |
| 1054 | PJ_TODO(TAKE_CODEC_INFO_FROM_ARGUMENT); |
| 1055 | |
| 1056 | |
| 1057 | pjmedia_rtp_session_init(&audio->out_sess, audio->si.tx_pt, |
| 1058 | (pj_uint32_t)audio); |
| 1059 | pjmedia_rtp_session_init(&audio->in_sess, audio->si.fmt.pt, 0); |
| 1060 | pjmedia_rtcp_init(&audio->rtcp, 0); |
| 1061 | |
| 1062 | /* Start media thread. */ |
| 1063 | audio->thread_quit_flag = 0; |
| 1064 | status = pj_thread_create( inv->pool, "media", &media_thread, audio, |
| 1065 | 0, 0, &audio->thread); |
| 1066 | if (status != PJ_SUCCESS) { |
| 1067 | app_perror(THIS_FILE, "Error creating media thread", status); |
| 1068 | } |
| 1069 | } |
| 1070 | |
| 1071 | |
| 1072 | |
| 1073 | /* Destroy call's media */ |
| 1074 | static void destroy_call_media(unsigned call_index) |
| 1075 | { |
| 1076 | struct media_stream *audio = &app.call[call_index].media[0]; |
| 1077 | |
| 1078 | if (audio->thread) { |
| 1079 | audio->thread_quit_flag = 1; |
| 1080 | pj_thread_join(audio->thread); |
| 1081 | pj_thread_destroy(audio->thread); |
| 1082 | audio->thread = NULL; |
| 1083 | audio->thread_quit_flag = 0; |
| 1084 | } |
| 1085 | } |
| 1086 | |
| 1087 | |
| 1088 | ///////////////////////////////////////////////////////////////////////////// |
| 1089 | /* |
| 1090 | * USER INTERFACE STUFFS |
| 1091 | */ |
| 1092 | |
| 1093 | static const char *good_number(char *buf, pj_int32_t val) |
| 1094 | { |
| 1095 | if (val < 1000) { |
| 1096 | pj_ansi_sprintf(buf, "%d", val); |
| 1097 | } else if (val < 1000000) { |
| 1098 | pj_ansi_sprintf(buf, "%d.%dK", |
| 1099 | val / 1000, |
| 1100 | (val % 1000) / 100); |
| 1101 | } else { |
| 1102 | pj_ansi_sprintf(buf, "%d.%02dM", |
| 1103 | val / 1000000, |
| 1104 | (val % 1000000) / 10000); |
| 1105 | } |
| 1106 | |
| 1107 | return buf; |
| 1108 | } |
| 1109 | |
| 1110 | |
| 1111 | static void print_call(int call_index) |
| 1112 | { |
| 1113 | int len; |
| 1114 | pjsip_inv_session *inv = app.call[call_index].inv; |
| 1115 | pjsip_dialog *dlg = inv->dlg; |
| 1116 | struct media_stream *audio = &app.call[call_index].media[0]; |
| 1117 | char userinfo[128]; |
| 1118 | char packets[16]; |
| 1119 | |
| 1120 | /* Dump invite sesion info. */ |
| 1121 | |
| 1122 | len = pjsip_hdr_print_on(dlg->remote.info, userinfo, sizeof(userinfo)); |
| 1123 | if (len < 1) |
| 1124 | pj_ansi_strcpy(userinfo, "<--uri too long-->"); |
| 1125 | else |
| 1126 | userinfo[len] = '\0'; |
| 1127 | |
| 1128 | printf("Call #%d: %s\n", call_index, pjsip_inv_state_name(inv->state)); |
| 1129 | printf(" %s\n", userinfo); |
| 1130 | |
| 1131 | if (app.call[call_index].media[0].thread == NULL) { |
| 1132 | return; |
| 1133 | } |
| 1134 | |
| 1135 | printf(" Stream #0: audio %.*s@%dHz, %d bytes/sec\n", |
| 1136 | (int)audio->si.fmt.encoding_name.slen, |
| 1137 | audio->si.fmt.encoding_name.ptr, |
| 1138 | audio->clock_rate, |
| 1139 | audio->bytes_per_frame * audio->clock_rate / audio->samples_per_frame); |
| 1140 | printf(" RX pkt=%s, fraction lost=%5.2f%%, jitter=%dms\n", |
| 1141 | good_number(packets, audio->rtcp.received), |
| 1142 | audio->rtcp.rtcp_pkt.rr.fract_lost/255.0, |
| 1143 | pj_ntohl(audio->rtcp.rtcp_pkt.rr.jitter) * 1000 / audio->clock_rate); |
| 1144 | printf(" TX pkt=%s, fraction lost=%5.2f%%, jitter=%dms\n", |
| 1145 | good_number(packets, pj_ntohl(audio->rtcp.rtcp_pkt.sr.sender_pcount)), |
| 1146 | audio->rem_rtcp.rr.fract_lost/255.0, |
| 1147 | pj_ntohl(audio->rem_rtcp.rr.jitter) * 1000 / audio->clock_rate); |
| 1148 | } |
| 1149 | |
| 1150 | |
| 1151 | static void list_calls() |
| 1152 | { |
| 1153 | unsigned i; |
| 1154 | puts("List all calls:"); |
| 1155 | for (i=0; i<app.max_calls; ++i) { |
| 1156 | if (!app.call[i].inv) |
| 1157 | continue; |
| 1158 | print_call(i); |
| 1159 | } |
| 1160 | } |
| 1161 | |
| 1162 | static void hangup_call(unsigned index) |
| 1163 | { |
| 1164 | pjsip_tx_data *tdata; |
| 1165 | pj_status_t status; |
| 1166 | |
| 1167 | if (app.call[index].inv == NULL) |
| 1168 | return; |
| 1169 | |
| 1170 | status = pjsip_inv_end_session(app.call[index].inv, 603, NULL, &tdata); |
| 1171 | if (status==PJ_SUCCESS && tdata!=NULL) |
| 1172 | pjsip_inv_send_msg(app.call[index].inv, tdata); |
| 1173 | } |
| 1174 | |
| 1175 | static void hangup_all_calls() |
| 1176 | { |
| 1177 | unsigned i; |
| 1178 | for (i=0; i<app.max_calls; ++i) { |
| 1179 | if (!app.call[i].inv) |
| 1180 | continue; |
| 1181 | hangup_call(i); |
| 1182 | } |
| 1183 | } |
| 1184 | |
| 1185 | static pj_bool_t simple_input(const char *title, char *buf, pj_size_t len) |
| 1186 | { |
| 1187 | char *p; |
| 1188 | |
| 1189 | printf("%s (empty to cancel): ", title); fflush(stdout); |
| 1190 | fgets(buf, len, stdin); |
| 1191 | |
| 1192 | /* Remove trailing newlines. */ |
| 1193 | for (p=buf; ; ++p) { |
| 1194 | if (*p=='\r' || *p=='\n') *p='\0'; |
| 1195 | else if (!*p) break; |
| 1196 | } |
| 1197 | |
| 1198 | if (!*buf) |
| 1199 | return PJ_FALSE; |
| 1200 | |
| 1201 | return PJ_TRUE; |
| 1202 | } |
| 1203 | |
| 1204 | |
| 1205 | static const char *MENU = |
| 1206 | "\n" |
| 1207 | "Enter menu character:\n" |
| 1208 | " l List all calls\n" |
| 1209 | " h Hangup a call\n" |
| 1210 | " H Hangup all calls\n" |
| 1211 | " q Quit\n" |
| 1212 | "\n"; |
| 1213 | |
| 1214 | |
| 1215 | /* Main screen menu */ |
| 1216 | static void console_main() |
| 1217 | { |
| 1218 | char input1[10]; |
| 1219 | unsigned i; |
| 1220 | |
| 1221 | for (;;) { |
| 1222 | printf(">>> "); fflush(stdout); |
| 1223 | fgets(input1, sizeof(input1), stdin); |
| 1224 | |
| 1225 | switch (input1[0]) { |
| 1226 | case 'l': |
| 1227 | list_calls(); |
| 1228 | break; |
| 1229 | |
| 1230 | case 'h': |
| 1231 | if (!simple_input("Call number to hangup", input1, sizeof(input1))) |
| 1232 | break; |
| 1233 | |
| 1234 | i = atoi(input1); |
| 1235 | hangup_call(i); |
| 1236 | break; |
| 1237 | |
| 1238 | case 'H': |
| 1239 | hangup_all_calls(); |
| 1240 | break; |
| 1241 | |
| 1242 | case 'q': |
| 1243 | goto on_exit; |
| 1244 | |
| 1245 | default: |
| 1246 | printf("%s", MENU); |
| 1247 | break; |
| 1248 | } |
| 1249 | |
| 1250 | fflush(stdout); |
| 1251 | } |
| 1252 | |
| 1253 | on_exit: |
| 1254 | ; |
| 1255 | } |
| 1256 | |
| 1257 | |
| 1258 | /* Notification on incoming messages */ |
| 1259 | static pj_bool_t console_on_rx_msg(pjsip_rx_data *rdata) |
| 1260 | { |
| 1261 | PJ_LOG(4,(THIS_FILE, "RX %d bytes %s from %s:%d:\n" |
| 1262 | "%s\n" |
| 1263 | "--end msg--", |
| 1264 | rdata->msg_info.len, |
| 1265 | pjsip_rx_data_get_info(rdata), |
| 1266 | rdata->pkt_info.src_name, |
| 1267 | rdata->pkt_info.src_port, |
| 1268 | rdata->msg_info.msg_buf)); |
| 1269 | |
| 1270 | /* Always return false, otherwise messages will not get processed! */ |
| 1271 | return PJ_FALSE; |
| 1272 | } |
| 1273 | |
| 1274 | /* Notification on outgoing messages */ |
| 1275 | static pj_status_t console_on_tx_msg(pjsip_tx_data *tdata) |
| 1276 | { |
| 1277 | |
| 1278 | /* Important note: |
| 1279 | * tp_info field is only valid after outgoing messages has passed |
| 1280 | * transport layer. So don't try to access tp_info when the module |
| 1281 | * has lower priority than transport layer. |
| 1282 | */ |
| 1283 | |
| 1284 | PJ_LOG(4,(THIS_FILE, "TX %d bytes %s to %s:%d:\n" |
| 1285 | "%s\n" |
| 1286 | "--end msg--", |
| 1287 | (tdata->buf.cur - tdata->buf.start), |
| 1288 | pjsip_tx_data_get_info(tdata), |
| 1289 | tdata->tp_info.dst_name, |
| 1290 | tdata->tp_info.dst_port, |
| 1291 | tdata->buf.start)); |
| 1292 | |
| 1293 | /* Always return success, otherwise message will not get sent! */ |
| 1294 | return PJ_SUCCESS; |
| 1295 | } |
| 1296 | |
| 1297 | /* The module instance. */ |
| 1298 | static pjsip_module msg_logger = |
| 1299 | { |
| 1300 | NULL, NULL, /* prev, next. */ |
| 1301 | { "mod-siprtp-log", 14 }, /* Name. */ |
| 1302 | -1, /* Id */ |
| 1303 | PJSIP_MOD_PRIORITY_TRANSPORT_LAYER-1,/* Priority */ |
| 1304 | NULL, /* load() */ |
| 1305 | NULL, /* start() */ |
| 1306 | NULL, /* stop() */ |
| 1307 | NULL, /* unload() */ |
| 1308 | &console_on_rx_msg, /* on_rx_request() */ |
| 1309 | &console_on_rx_msg, /* on_rx_response() */ |
| 1310 | &console_on_tx_msg, /* on_tx_request. */ |
| 1311 | &console_on_tx_msg, /* on_tx_response() */ |
| 1312 | NULL, /* on_tsx_state() */ |
| 1313 | |
| 1314 | }; |
| 1315 | |
| 1316 | |
| 1317 | |
| 1318 | |
| 1319 | /* |
| 1320 | * main() |
| 1321 | */ |
| 1322 | int main(int argc, char *argv[]) |
| 1323 | { |
| 1324 | pj_status_t status; |
| 1325 | |
| 1326 | status = pj_init(); |
| 1327 | if (status != PJ_SUCCESS) |
| 1328 | return 1; |
| 1329 | |
| 1330 | status = init_options(argc, argv); |
| 1331 | if (status != PJ_SUCCESS) |
| 1332 | return 1; |
| 1333 | |
| 1334 | status = init_sip(); |
| 1335 | if (status != PJ_SUCCESS) { |
| 1336 | app_perror(THIS_FILE, "Initialization has failed", status); |
| 1337 | destroy_sip(); |
| 1338 | return 1; |
| 1339 | } |
| 1340 | |
| 1341 | pjsip_endpt_register_module(app.sip_endpt, &msg_logger); |
| 1342 | |
| 1343 | status = init_media(); |
| 1344 | if (status != PJ_SUCCESS) { |
| 1345 | app_perror(THIS_FILE, "Media initialization failed", status); |
| 1346 | destroy_sip(); |
| 1347 | return 1; |
| 1348 | } |
| 1349 | |
| 1350 | if (app.uri_to_call.slen) { |
| 1351 | unsigned i; |
| 1352 | |
| 1353 | for (i=0; i<app.max_calls; ++i) { |
| 1354 | status = make_call(&app.uri_to_call); |
| 1355 | if (status != PJ_SUCCESS) { |
| 1356 | app_perror(THIS_FILE, "Error making call", status); |
| 1357 | break; |
| 1358 | } |
| 1359 | } |
| 1360 | } |
| 1361 | |
| 1362 | console_main(); |
| 1363 | |
| 1364 | |
| 1365 | destroy_media(); |
| 1366 | destroy_sip(); |
| 1367 | |
| 1368 | return 0; |
| 1369 | } |
| 1370 | |