Tristan Matthews | 0a329cc | 2013-07-17 13:20:14 -0400 | [diff] [blame] | 1 | /* $Id$ */ |
| 2 | /* |
| 3 | * Copyright (C) 2008-2011 Teluu Inc. (http://www.teluu.com) |
| 4 | * Copyright (C) 2003-2008 Benny Prijono <benny@prijono.org> |
| 5 | * |
| 6 | * This program is free software; you can redistribute it and/or modify |
| 7 | * it under the terms of the GNU General Public License as published by |
| 8 | * the Free Software Foundation; either version 2 of the License, or |
| 9 | * (at your option) any later version. |
| 10 | * |
| 11 | * This program is distributed in the hope that it will be useful, |
| 12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 14 | * GNU General Public License for more details. |
| 15 | * |
| 16 | * You should have received a copy of the GNU General Public License |
| 17 | * along with this program; if not, write to the Free Software |
| 18 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
| 19 | */ |
| 20 | #include <pjmedia/conference.h> |
| 21 | #include <pjmedia/alaw_ulaw.h> |
| 22 | #include <pjmedia/errno.h> |
| 23 | #include <pjmedia/port.h> |
| 24 | #include <pjmedia/silencedet.h> |
| 25 | #include <pjmedia/sound_port.h> |
| 26 | #include <pj/array.h> |
| 27 | #include <pj/assert.h> |
| 28 | #include <pj/log.h> |
| 29 | #include <pj/math.h> |
| 30 | #include <pj/pool.h> |
| 31 | #include <pj/string.h> |
| 32 | |
| 33 | #if defined(PJMEDIA_CONF_USE_SWITCH_BOARD) && PJMEDIA_CONF_USE_SWITCH_BOARD!=0 |
| 34 | |
| 35 | /* CONF_DEBUG enables detailed operation of the conference bridge. |
| 36 | * Beware that it prints large amounts of logs (several lines per frame). |
| 37 | */ |
| 38 | //#define CONF_DEBUG |
| 39 | #ifdef CONF_DEBUG |
| 40 | # include <stdio.h> |
| 41 | # define TRACE_(x) PJ_LOG(5,x) |
| 42 | #else |
| 43 | # define TRACE_(x) |
| 44 | #endif |
| 45 | |
| 46 | #define THIS_FILE "conf_switch.c" |
| 47 | |
| 48 | #define SIGNATURE PJMEDIA_CONF_SWITCH_SIGNATURE |
| 49 | #define SIGNATURE_PORT PJMEDIA_PORT_SIGNATURE('S', 'W', 'T', 'P') |
| 50 | #define NORMAL_LEVEL 128 |
| 51 | #define SLOT_TYPE unsigned |
| 52 | #define INVALID_SLOT ((SLOT_TYPE)-1) |
| 53 | #define BUFFER_SIZE PJMEDIA_CONF_SWITCH_BOARD_BUF_SIZE |
| 54 | #define MAX_LEVEL (32767) |
| 55 | #define MIN_LEVEL (-32768) |
| 56 | |
| 57 | /* |
| 58 | * DON'T GET CONFUSED WITH TX/RX!! |
| 59 | * |
| 60 | * TX and RX directions are always viewed from the conference bridge's point |
| 61 | * of view, and NOT from the port's point of view. So TX means the bridge |
| 62 | * is transmitting to the port, RX means the bridge is receiving from the |
| 63 | * port. |
| 64 | */ |
| 65 | |
| 66 | |
| 67 | /** |
| 68 | * This is a port connected to conference bridge. |
| 69 | */ |
| 70 | struct conf_port |
| 71 | { |
| 72 | SLOT_TYPE slot; /**< Array of listeners. */ |
| 73 | pj_str_t name; /**< Port name. */ |
| 74 | pjmedia_port *port; /**< get_frame() and put_frame() */ |
| 75 | pjmedia_port_op rx_setting; /**< Can we receive from this port */ |
| 76 | pjmedia_port_op tx_setting; /**< Can we transmit to this port */ |
| 77 | unsigned listener_cnt; /**< Number of listeners. */ |
| 78 | SLOT_TYPE *listener_slots;/**< Array of listeners. */ |
| 79 | unsigned transmitter_cnt;/**<Number of transmitters. */ |
| 80 | |
| 81 | /* Shortcut for port info. */ |
| 82 | pjmedia_port_info *info; |
| 83 | unsigned samples_per_frame; |
| 84 | |
| 85 | /* Calculated signal levels: */ |
| 86 | unsigned tx_level; /**< Last tx level to this port. */ |
| 87 | unsigned rx_level; /**< Last rx level from this port. */ |
| 88 | |
| 89 | /* The normalized signal level adjustment. |
| 90 | * A value of 128 (NORMAL_LEVEL) means there's no adjustment. |
| 91 | */ |
| 92 | unsigned tx_adj_level; /**< Adjustment for TX. */ |
| 93 | unsigned rx_adj_level; /**< Adjustment for RX. */ |
| 94 | |
| 95 | pj_timestamp ts_clock; |
| 96 | pj_timestamp ts_rx; |
| 97 | pj_timestamp ts_tx; |
| 98 | |
| 99 | /* Tx buffer is a temporary buffer to be used when there's mismatch |
| 100 | * between port's ptime with conference's ptime. This buffer is used as |
| 101 | * the source to buffer the samples until there are enough samples to |
| 102 | * fulfill a complete frame to be transmitted to the port. |
| 103 | */ |
| 104 | pj_uint8_t tx_buf[BUFFER_SIZE]; /**< Tx buffer. */ |
| 105 | }; |
| 106 | |
| 107 | |
| 108 | /* |
| 109 | * Conference bridge. |
| 110 | */ |
| 111 | struct pjmedia_conf |
| 112 | { |
| 113 | unsigned options; /**< Bitmask options. */ |
| 114 | unsigned max_ports; /**< Maximum ports. */ |
| 115 | unsigned port_cnt; /**< Current number of ports. */ |
| 116 | unsigned connect_cnt; /**< Total number of connections */ |
| 117 | pjmedia_port *master_port; /**< Port zero's port. */ |
| 118 | char master_name_buf[80]; /**< Port0 name buffer. */ |
| 119 | pj_mutex_t *mutex; /**< Conference mutex. */ |
| 120 | struct conf_port **ports; /**< Array of ports. */ |
| 121 | pj_uint8_t buf[BUFFER_SIZE]; /**< Common buffer. */ |
| 122 | }; |
| 123 | |
| 124 | |
| 125 | /* Prototypes */ |
| 126 | static pj_status_t put_frame(pjmedia_port *this_port, |
| 127 | pjmedia_frame *frame); |
| 128 | static pj_status_t get_frame(pjmedia_port *this_port, |
| 129 | pjmedia_frame *frame); |
| 130 | static pj_status_t destroy_port(pjmedia_port *this_port); |
| 131 | |
| 132 | |
| 133 | /* |
| 134 | * Create port. |
| 135 | */ |
| 136 | static pj_status_t create_conf_port( pj_pool_t *pool, |
| 137 | pjmedia_conf *conf, |
| 138 | pjmedia_port *port, |
| 139 | const pj_str_t *name, |
| 140 | struct conf_port **p_conf_port) |
| 141 | { |
| 142 | struct conf_port *conf_port; |
| 143 | pjmedia_frame *f; |
| 144 | |
| 145 | PJ_ASSERT_RETURN(pool && conf && port && name && p_conf_port, PJ_EINVAL); |
| 146 | |
| 147 | /* Check port's buffer size */ |
| 148 | if (port->info.fmt.id == PJMEDIA_FORMAT_PCM && |
| 149 | PJMEDIA_PIA_SPF(&port->info)*2 > BUFFER_SIZE - sizeof(pjmedia_frame)) |
| 150 | { |
| 151 | pj_assert(!"Too small buffer size for audio switchboard. " |
| 152 | "Try increase PJMEDIA_CONF_SWITCH_BOARD_BUF_SIZE"); |
| 153 | return PJ_ETOOSMALL; |
| 154 | } |
| 155 | |
| 156 | /* Create port. */ |
| 157 | conf_port = PJ_POOL_ZALLOC_T(pool, struct conf_port); |
| 158 | |
| 159 | /* Set name */ |
| 160 | pj_strdup_with_null(pool, &conf_port->name, name); |
| 161 | |
| 162 | /* Default has tx and rx enabled. */ |
| 163 | conf_port->rx_setting = PJMEDIA_PORT_ENABLE; |
| 164 | conf_port->tx_setting = PJMEDIA_PORT_ENABLE; |
| 165 | |
| 166 | /* Default level adjustment is 128 (which means no adjustment) */ |
| 167 | conf_port->tx_adj_level = NORMAL_LEVEL; |
| 168 | conf_port->rx_adj_level = NORMAL_LEVEL; |
| 169 | |
| 170 | /* Create transmit flag array */ |
| 171 | conf_port->listener_slots = (SLOT_TYPE*) |
| 172 | pj_pool_zalloc(pool, |
| 173 | conf->max_ports * sizeof(SLOT_TYPE)); |
| 174 | PJ_ASSERT_RETURN(conf_port->listener_slots, PJ_ENOMEM); |
| 175 | |
| 176 | /* Save some port's infos, for convenience. */ |
| 177 | conf_port->port = port; |
| 178 | conf_port->info = &port->info; |
| 179 | conf_port->samples_per_frame = PJMEDIA_PIA_SPF(&port->info); |
| 180 | |
| 181 | /* Init pjmedia_frame structure in the TX buffer. */ |
| 182 | f = (pjmedia_frame*)conf_port->tx_buf; |
| 183 | f->buf = conf_port->tx_buf + sizeof(pjmedia_frame); |
| 184 | |
| 185 | /* Done */ |
| 186 | *p_conf_port = conf_port; |
| 187 | return PJ_SUCCESS; |
| 188 | } |
| 189 | |
| 190 | /* |
| 191 | * Create port zero for the sound device. |
| 192 | */ |
| 193 | static pj_status_t create_sound_port( pj_pool_t *pool, |
| 194 | pjmedia_conf *conf ) |
| 195 | { |
| 196 | struct conf_port *conf_port; |
| 197 | pj_str_t name = { "Master/sound", 12 }; |
| 198 | pj_status_t status; |
| 199 | |
| 200 | status = create_conf_port(pool, conf, conf->master_port, &name, &conf_port); |
| 201 | if (status != PJ_SUCCESS) |
| 202 | return status; |
| 203 | |
| 204 | /* Add the port to the bridge */ |
| 205 | conf_port->slot = 0; |
| 206 | conf->ports[0] = conf_port; |
| 207 | conf->port_cnt++; |
| 208 | |
| 209 | PJ_LOG(5,(THIS_FILE, "Sound device successfully created for port 0")); |
| 210 | return PJ_SUCCESS; |
| 211 | } |
| 212 | |
| 213 | /* |
| 214 | * Create conference bridge. |
| 215 | */ |
| 216 | PJ_DEF(pj_status_t) pjmedia_conf_create( pj_pool_t *pool, |
| 217 | unsigned max_ports, |
| 218 | unsigned clock_rate, |
| 219 | unsigned channel_count, |
| 220 | unsigned samples_per_frame, |
| 221 | unsigned bits_per_sample, |
| 222 | unsigned options, |
| 223 | pjmedia_conf **p_conf ) |
| 224 | { |
| 225 | pjmedia_conf *conf; |
| 226 | const pj_str_t name = { "Conf", 4 }; |
| 227 | pj_status_t status; |
| 228 | |
| 229 | /* Can only accept 16bits per sample, for now.. */ |
| 230 | PJ_ASSERT_RETURN(bits_per_sample == 16, PJ_EINVAL); |
| 231 | |
| 232 | PJ_LOG(5,(THIS_FILE, "Creating conference bridge with %d ports", |
| 233 | max_ports)); |
| 234 | |
| 235 | /* Create and init conf structure. */ |
| 236 | conf = PJ_POOL_ZALLOC_T(pool, pjmedia_conf); |
| 237 | PJ_ASSERT_RETURN(conf, PJ_ENOMEM); |
| 238 | |
| 239 | conf->ports = (struct conf_port**) |
| 240 | pj_pool_zalloc(pool, max_ports*sizeof(void*)); |
| 241 | PJ_ASSERT_RETURN(conf->ports, PJ_ENOMEM); |
| 242 | |
| 243 | conf->options = options; |
| 244 | conf->max_ports = max_ports; |
| 245 | |
| 246 | /* Create and initialize the master port interface. */ |
| 247 | conf->master_port = PJ_POOL_ZALLOC_T(pool, pjmedia_port); |
| 248 | PJ_ASSERT_RETURN(conf->master_port, PJ_ENOMEM); |
| 249 | |
| 250 | pjmedia_port_info_init(&conf->master_port->info, &name, SIGNATURE, |
| 251 | clock_rate, channel_count, bits_per_sample, |
| 252 | samples_per_frame); |
| 253 | |
| 254 | conf->master_port->port_data.pdata = conf; |
| 255 | conf->master_port->port_data.ldata = 0; |
| 256 | |
| 257 | conf->master_port->get_frame = &get_frame; |
| 258 | conf->master_port->put_frame = &put_frame; |
| 259 | conf->master_port->on_destroy = &destroy_port; |
| 260 | |
| 261 | |
| 262 | /* Create port zero for sound device. */ |
| 263 | status = create_sound_port(pool, conf); |
| 264 | if (status != PJ_SUCCESS) |
| 265 | return status; |
| 266 | |
| 267 | /* Create mutex. */ |
| 268 | status = pj_mutex_create_recursive(pool, "conf", &conf->mutex); |
| 269 | if (status != PJ_SUCCESS) |
| 270 | return status; |
| 271 | |
| 272 | /* Done */ |
| 273 | |
| 274 | *p_conf = conf; |
| 275 | |
| 276 | return PJ_SUCCESS; |
| 277 | } |
| 278 | |
| 279 | |
| 280 | /* |
| 281 | * Pause sound device. |
| 282 | */ |
| 283 | static pj_status_t pause_sound( pjmedia_conf *conf ) |
| 284 | { |
| 285 | /* Do nothing. */ |
| 286 | PJ_UNUSED_ARG(conf); |
| 287 | return PJ_SUCCESS; |
| 288 | } |
| 289 | |
| 290 | /* |
| 291 | * Resume sound device. |
| 292 | */ |
| 293 | static pj_status_t resume_sound( pjmedia_conf *conf ) |
| 294 | { |
| 295 | /* Do nothing. */ |
| 296 | PJ_UNUSED_ARG(conf); |
| 297 | return PJ_SUCCESS; |
| 298 | } |
| 299 | |
| 300 | |
| 301 | /** |
| 302 | * Destroy conference bridge. |
| 303 | */ |
| 304 | PJ_DEF(pj_status_t) pjmedia_conf_destroy( pjmedia_conf *conf ) |
| 305 | { |
| 306 | PJ_ASSERT_RETURN(conf != NULL, PJ_EINVAL); |
| 307 | |
| 308 | /* Destroy mutex */ |
| 309 | pj_mutex_destroy(conf->mutex); |
| 310 | |
| 311 | return PJ_SUCCESS; |
| 312 | } |
| 313 | |
| 314 | |
| 315 | /* |
| 316 | * Destroy the master port (will destroy the conference) |
| 317 | */ |
| 318 | static pj_status_t destroy_port(pjmedia_port *this_port) |
| 319 | { |
| 320 | pjmedia_conf *conf = (pjmedia_conf*) this_port->port_data.pdata; |
| 321 | return pjmedia_conf_destroy(conf); |
| 322 | } |
| 323 | |
| 324 | /* |
| 325 | * Get port zero interface. |
| 326 | */ |
| 327 | PJ_DEF(pjmedia_port*) pjmedia_conf_get_master_port(pjmedia_conf *conf) |
| 328 | { |
| 329 | /* Sanity check. */ |
| 330 | PJ_ASSERT_RETURN(conf != NULL, NULL); |
| 331 | |
| 332 | /* Can only return port interface when PJMEDIA_CONF_NO_DEVICE was |
| 333 | * present in the option. |
| 334 | */ |
| 335 | PJ_ASSERT_RETURN((conf->options & PJMEDIA_CONF_NO_DEVICE) != 0, NULL); |
| 336 | |
| 337 | return conf->master_port; |
| 338 | } |
| 339 | |
| 340 | |
| 341 | /* |
| 342 | * Set master port name. |
| 343 | */ |
| 344 | PJ_DEF(pj_status_t) pjmedia_conf_set_port0_name(pjmedia_conf *conf, |
| 345 | const pj_str_t *name) |
| 346 | { |
| 347 | unsigned len; |
| 348 | |
| 349 | /* Sanity check. */ |
| 350 | PJ_ASSERT_RETURN(conf != NULL && name != NULL, PJ_EINVAL); |
| 351 | |
| 352 | len = name->slen; |
| 353 | if (len > sizeof(conf->master_name_buf)) |
| 354 | len = sizeof(conf->master_name_buf); |
| 355 | |
| 356 | if (len > 0) pj_memcpy(conf->master_name_buf, name->ptr, len); |
| 357 | |
| 358 | conf->ports[0]->name.ptr = conf->master_name_buf; |
| 359 | conf->ports[0]->name.slen = len; |
| 360 | |
| 361 | conf->master_port->info.name = conf->ports[0]->name; |
| 362 | |
| 363 | return PJ_SUCCESS; |
| 364 | } |
| 365 | |
| 366 | /* |
| 367 | * Add stream port to the conference bridge. |
| 368 | */ |
| 369 | PJ_DEF(pj_status_t) pjmedia_conf_add_port( pjmedia_conf *conf, |
| 370 | pj_pool_t *pool, |
| 371 | pjmedia_port *strm_port, |
| 372 | const pj_str_t *port_name, |
| 373 | unsigned *p_port ) |
| 374 | { |
| 375 | struct conf_port *conf_port; |
| 376 | unsigned index; |
| 377 | pj_status_t status; |
| 378 | |
| 379 | PJ_ASSERT_RETURN(conf && pool && strm_port, PJ_EINVAL); |
| 380 | /* |
| 381 | PJ_ASSERT_RETURN(conf->clock_rate == strm_port->info.clock_rate, |
| 382 | PJMEDIA_ENCCLOCKRATE); |
| 383 | PJ_ASSERT_RETURN(conf->channel_count == strm_port->info.channel_count, |
| 384 | PJMEDIA_ENCCHANNEL); |
| 385 | PJ_ASSERT_RETURN(conf->bits_per_sample == strm_port->info.bits_per_sample, |
| 386 | PJMEDIA_ENCBITS); |
| 387 | */ |
| 388 | |
| 389 | /* Port's samples per frame should be equal to or multiplication of |
| 390 | * conference's samples per frame. |
| 391 | */ |
| 392 | /* |
| 393 | Not sure if this is needed! |
| 394 | PJ_ASSERT_RETURN((conf->samples_per_frame % |
| 395 | strm_port->info.samples_per_frame==0) || |
| 396 | (strm_port->info.samples_per_frame % |
| 397 | conf->samples_per_frame==0), |
| 398 | PJMEDIA_ENCSAMPLESPFRAME); |
| 399 | */ |
| 400 | |
| 401 | /* If port_name is not specified, use the port's name */ |
| 402 | if (!port_name) |
| 403 | port_name = &strm_port->info.name; |
| 404 | |
| 405 | pj_mutex_lock(conf->mutex); |
| 406 | |
| 407 | if (conf->port_cnt >= conf->max_ports) { |
| 408 | pj_assert(!"Too many ports"); |
| 409 | pj_mutex_unlock(conf->mutex); |
| 410 | return PJ_ETOOMANY; |
| 411 | } |
| 412 | |
| 413 | /* Find empty port in the conference bridge. */ |
| 414 | for (index=0; index < conf->max_ports; ++index) { |
| 415 | if (conf->ports[index] == NULL) |
| 416 | break; |
| 417 | } |
| 418 | |
| 419 | pj_assert(index != conf->max_ports); |
| 420 | |
| 421 | /* Create conf port structure. */ |
| 422 | status = create_conf_port(pool, conf, strm_port, port_name, &conf_port); |
| 423 | if (status != PJ_SUCCESS) { |
| 424 | pj_mutex_unlock(conf->mutex); |
| 425 | return status; |
| 426 | } |
| 427 | |
| 428 | /* Put the port. */ |
| 429 | conf_port->slot = index; |
| 430 | conf->ports[index] = conf_port; |
| 431 | conf->port_cnt++; |
| 432 | |
| 433 | /* Done. */ |
| 434 | if (p_port) { |
| 435 | *p_port = index; |
| 436 | } |
| 437 | |
| 438 | pj_mutex_unlock(conf->mutex); |
| 439 | |
| 440 | return PJ_SUCCESS; |
| 441 | } |
| 442 | |
| 443 | |
| 444 | /* |
| 445 | * Add passive port. |
| 446 | */ |
| 447 | PJ_DEF(pj_status_t) pjmedia_conf_add_passive_port( pjmedia_conf *conf, |
| 448 | pj_pool_t *pool, |
| 449 | const pj_str_t *name, |
| 450 | unsigned clock_rate, |
| 451 | unsigned channel_count, |
| 452 | unsigned samples_per_frame, |
| 453 | unsigned bits_per_sample, |
| 454 | unsigned options, |
| 455 | unsigned *p_slot, |
| 456 | pjmedia_port **p_port ) |
| 457 | { |
| 458 | PJ_UNUSED_ARG(conf); |
| 459 | PJ_UNUSED_ARG(pool); |
| 460 | PJ_UNUSED_ARG(name); |
| 461 | PJ_UNUSED_ARG(clock_rate); |
| 462 | PJ_UNUSED_ARG(channel_count); |
| 463 | PJ_UNUSED_ARG(samples_per_frame); |
| 464 | PJ_UNUSED_ARG(bits_per_sample); |
| 465 | PJ_UNUSED_ARG(options); |
| 466 | PJ_UNUSED_ARG(p_slot); |
| 467 | PJ_UNUSED_ARG(p_port); |
| 468 | |
| 469 | return PJ_ENOTSUP; |
| 470 | } |
| 471 | |
| 472 | |
| 473 | |
| 474 | /* |
| 475 | * Change TX and RX settings for the port. |
| 476 | */ |
| 477 | PJ_DEF(pj_status_t) pjmedia_conf_configure_port( pjmedia_conf *conf, |
| 478 | unsigned slot, |
| 479 | pjmedia_port_op tx, |
| 480 | pjmedia_port_op rx) |
| 481 | { |
| 482 | struct conf_port *conf_port; |
| 483 | |
| 484 | /* Check arguments */ |
| 485 | PJ_ASSERT_RETURN(conf && slot<conf->max_ports, PJ_EINVAL); |
| 486 | |
| 487 | pj_mutex_lock(conf->mutex); |
| 488 | |
| 489 | /* Port must be valid. */ |
| 490 | conf_port = conf->ports[slot]; |
| 491 | if (conf_port == NULL) { |
| 492 | pj_mutex_unlock(conf->mutex); |
| 493 | return PJ_EINVAL; |
| 494 | } |
| 495 | |
| 496 | if (tx != PJMEDIA_PORT_NO_CHANGE) |
| 497 | conf_port->tx_setting = tx; |
| 498 | |
| 499 | if (rx != PJMEDIA_PORT_NO_CHANGE) |
| 500 | conf_port->rx_setting = rx; |
| 501 | |
| 502 | pj_mutex_unlock(conf->mutex); |
| 503 | |
| 504 | return PJ_SUCCESS; |
| 505 | } |
| 506 | |
| 507 | |
| 508 | /* |
| 509 | * Connect port. |
| 510 | */ |
| 511 | PJ_DEF(pj_status_t) pjmedia_conf_connect_port( pjmedia_conf *conf, |
| 512 | unsigned src_slot, |
| 513 | unsigned sink_slot, |
| 514 | int level ) |
| 515 | { |
| 516 | struct conf_port *src_port, *dst_port; |
| 517 | pj_bool_t start_sound = PJ_FALSE; |
| 518 | pjmedia_audio_format_detail *src_afd, *dst_afd; |
| 519 | unsigned i; |
| 520 | |
| 521 | /* Check arguments */ |
| 522 | PJ_ASSERT_RETURN(conf && src_slot<conf->max_ports && |
| 523 | sink_slot<conf->max_ports, PJ_EINVAL); |
| 524 | |
| 525 | /* For now, level MUST be zero. */ |
| 526 | PJ_ASSERT_RETURN(level == 0, PJ_EINVAL); |
| 527 | |
| 528 | pj_mutex_lock(conf->mutex); |
| 529 | |
| 530 | /* Ports must be valid. */ |
| 531 | src_port = conf->ports[src_slot]; |
| 532 | dst_port = conf->ports[sink_slot]; |
| 533 | if (!src_port || !dst_port) { |
| 534 | pj_mutex_unlock(conf->mutex); |
| 535 | return PJ_EINVAL; |
| 536 | } |
| 537 | |
| 538 | src_afd = pjmedia_format_get_audio_format_detail(&src_port->info->fmt, 1); |
| 539 | dst_afd = pjmedia_format_get_audio_format_detail(&dst_port->info->fmt, 1); |
| 540 | |
| 541 | /* Format must match. */ |
| 542 | if (src_port->info->fmt.id != dst_port->info->fmt.id || |
| 543 | src_afd->avg_bps != dst_afd->avg_bps) |
| 544 | { |
| 545 | pj_mutex_unlock(conf->mutex); |
| 546 | return PJMEDIA_ENOTCOMPATIBLE; |
| 547 | } |
| 548 | |
| 549 | /* Clock rate must match. */ |
| 550 | if (src_afd->clock_rate != dst_afd->clock_rate) { |
| 551 | pj_mutex_unlock(conf->mutex); |
| 552 | return PJMEDIA_ENCCLOCKRATE; |
| 553 | } |
| 554 | |
| 555 | /* Channel count must match. */ |
| 556 | if (src_afd->channel_count != dst_afd->channel_count) { |
| 557 | pj_mutex_unlock(conf->mutex); |
| 558 | return PJMEDIA_ENCCHANNEL; |
| 559 | } |
| 560 | |
| 561 | /* Source and sink ptime must be equal or a multiplication factor. */ |
| 562 | if ((src_afd->frame_time_usec % dst_afd->frame_time_usec != 0) && |
| 563 | (dst_afd->frame_time_usec % src_afd->frame_time_usec != 0)) |
| 564 | { |
| 565 | pj_mutex_unlock(conf->mutex); |
| 566 | return PJMEDIA_ENCSAMPLESPFRAME; |
| 567 | } |
| 568 | |
| 569 | /* If sink is currently listening to other ports, it needs to be released |
| 570 | * first before the new connection made. |
| 571 | */ |
| 572 | if (dst_port->transmitter_cnt > 0) { |
| 573 | unsigned j; |
| 574 | pj_bool_t transmitter_found = PJ_FALSE; |
| 575 | |
| 576 | pj_assert(dst_port->transmitter_cnt == 1); |
| 577 | for (j=0; j<conf->max_ports && !transmitter_found; ++j) { |
| 578 | if (conf->ports[j]) { |
| 579 | unsigned k; |
| 580 | |
| 581 | for (k=0; k < conf->ports[j]->listener_cnt; ++k) { |
| 582 | if (conf->ports[j]->listener_slots[k] == sink_slot) { |
| 583 | PJ_LOG(2,(THIS_FILE, "Connection [%d->%d] is " |
| 584 | "disconnected for new connection [%d->%d]", |
| 585 | j, sink_slot, src_slot, sink_slot)); |
| 586 | pjmedia_conf_disconnect_port(conf, j, sink_slot); |
| 587 | transmitter_found = PJ_TRUE; |
| 588 | break; |
| 589 | } |
| 590 | } |
| 591 | } |
| 592 | } |
| 593 | pj_assert(dst_port->transmitter_cnt == 0); |
| 594 | } |
| 595 | |
| 596 | /* Check if connection has been made */ |
| 597 | for (i=0; i<src_port->listener_cnt; ++i) { |
| 598 | if (src_port->listener_slots[i] == sink_slot) |
| 599 | break; |
| 600 | } |
| 601 | |
| 602 | /* Update master port info shortcut, note that application may update |
| 603 | * the master port info when the audio device needs to be reopened with |
| 604 | * a new format to match to ports connection format. |
| 605 | */ |
| 606 | conf->ports[0]->samples_per_frame = PJMEDIA_PIA_SPF(conf->ports[0]->info); |
| 607 | |
| 608 | if (i == src_port->listener_cnt) { |
| 609 | src_port->listener_slots[src_port->listener_cnt] = sink_slot; |
| 610 | ++conf->connect_cnt; |
| 611 | ++src_port->listener_cnt; |
| 612 | ++dst_port->transmitter_cnt; |
| 613 | |
| 614 | if (conf->connect_cnt == 1) |
| 615 | start_sound = 1; |
| 616 | |
| 617 | PJ_LOG(4,(THIS_FILE,"Port %d (%.*s) transmitting to port %d (%.*s)", |
| 618 | src_slot, |
| 619 | (int)src_port->name.slen, |
| 620 | src_port->name.ptr, |
| 621 | sink_slot, |
| 622 | (int)dst_port->name.slen, |
| 623 | dst_port->name.ptr)); |
| 624 | } |
| 625 | |
| 626 | pj_mutex_unlock(conf->mutex); |
| 627 | |
| 628 | /* Sound device must be started without mutex, otherwise the |
| 629 | * sound thread will deadlock (?) |
| 630 | */ |
| 631 | if (start_sound) |
| 632 | resume_sound(conf); |
| 633 | |
| 634 | return PJ_SUCCESS; |
| 635 | } |
| 636 | |
| 637 | |
| 638 | /* |
| 639 | * Disconnect port |
| 640 | */ |
| 641 | PJ_DEF(pj_status_t) pjmedia_conf_disconnect_port( pjmedia_conf *conf, |
| 642 | unsigned src_slot, |
| 643 | unsigned sink_slot ) |
| 644 | { |
| 645 | struct conf_port *src_port, *dst_port; |
| 646 | unsigned i; |
| 647 | |
| 648 | /* Check arguments */ |
| 649 | PJ_ASSERT_RETURN(conf && src_slot<conf->max_ports && |
| 650 | sink_slot<conf->max_ports, PJ_EINVAL); |
| 651 | |
| 652 | pj_mutex_lock(conf->mutex); |
| 653 | |
| 654 | /* Ports must be valid. */ |
| 655 | src_port = conf->ports[src_slot]; |
| 656 | dst_port = conf->ports[sink_slot]; |
| 657 | if (!src_port || !dst_port) { |
| 658 | pj_mutex_unlock(conf->mutex); |
| 659 | return PJ_EINVAL; |
| 660 | } |
| 661 | |
| 662 | /* Check if connection has been made */ |
| 663 | for (i=0; i<src_port->listener_cnt; ++i) { |
| 664 | if (src_port->listener_slots[i] == sink_slot) |
| 665 | break; |
| 666 | } |
| 667 | |
| 668 | if (i != src_port->listener_cnt) { |
| 669 | pjmedia_frame_ext *f; |
| 670 | |
| 671 | pj_assert(src_port->listener_cnt > 0 && |
| 672 | src_port->listener_cnt < conf->max_ports); |
| 673 | pj_assert(dst_port->transmitter_cnt > 0 && |
| 674 | dst_port->transmitter_cnt < conf->max_ports); |
| 675 | pj_array_erase(src_port->listener_slots, sizeof(SLOT_TYPE), |
| 676 | src_port->listener_cnt, i); |
| 677 | --conf->connect_cnt; |
| 678 | --src_port->listener_cnt; |
| 679 | --dst_port->transmitter_cnt; |
| 680 | |
| 681 | /* Cleanup listener TX buffer. */ |
| 682 | f = (pjmedia_frame_ext*)dst_port->tx_buf; |
| 683 | f->base.type = PJMEDIA_FRAME_TYPE_NONE; |
| 684 | f->base.size = 0; |
| 685 | f->samples_cnt = 0; |
| 686 | f->subframe_cnt = 0; |
| 687 | |
| 688 | PJ_LOG(4,(THIS_FILE, |
| 689 | "Port %d (%.*s) stop transmitting to port %d (%.*s)", |
| 690 | src_slot, |
| 691 | (int)src_port->name.slen, |
| 692 | src_port->name.ptr, |
| 693 | sink_slot, |
| 694 | (int)dst_port->name.slen, |
| 695 | dst_port->name.ptr)); |
| 696 | } |
| 697 | |
| 698 | pj_mutex_unlock(conf->mutex); |
| 699 | |
| 700 | if (conf->connect_cnt == 0) { |
| 701 | pause_sound(conf); |
| 702 | } |
| 703 | |
| 704 | return PJ_SUCCESS; |
| 705 | } |
| 706 | |
| 707 | /* |
| 708 | * Get number of ports currently registered to the conference bridge. |
| 709 | */ |
| 710 | PJ_DEF(unsigned) pjmedia_conf_get_port_count(pjmedia_conf *conf) |
| 711 | { |
| 712 | return conf->port_cnt; |
| 713 | } |
| 714 | |
| 715 | /* |
| 716 | * Get total number of ports connections currently set up in the bridge. |
| 717 | */ |
| 718 | PJ_DEF(unsigned) pjmedia_conf_get_connect_count(pjmedia_conf *conf) |
| 719 | { |
| 720 | return conf->connect_cnt; |
| 721 | } |
| 722 | |
| 723 | |
| 724 | /* |
| 725 | * Remove the specified port. |
| 726 | */ |
| 727 | PJ_DEF(pj_status_t) pjmedia_conf_remove_port( pjmedia_conf *conf, |
| 728 | unsigned port ) |
| 729 | { |
| 730 | struct conf_port *conf_port; |
| 731 | unsigned i; |
| 732 | |
| 733 | /* Check arguments */ |
| 734 | PJ_ASSERT_RETURN(conf && port < conf->max_ports, PJ_EINVAL); |
| 735 | |
| 736 | /* Suspend the sound devices. |
| 737 | * Don't want to remove port while port is being accessed by sound |
| 738 | * device's threads! |
| 739 | */ |
| 740 | |
| 741 | pj_mutex_lock(conf->mutex); |
| 742 | |
| 743 | /* Port must be valid. */ |
| 744 | conf_port = conf->ports[port]; |
| 745 | if (conf_port == NULL) { |
| 746 | pj_mutex_unlock(conf->mutex); |
| 747 | return PJ_EINVAL; |
| 748 | } |
| 749 | |
| 750 | conf_port->tx_setting = PJMEDIA_PORT_DISABLE; |
| 751 | conf_port->rx_setting = PJMEDIA_PORT_DISABLE; |
| 752 | |
| 753 | /* Remove this port from transmit array of other ports. */ |
| 754 | for (i=0; i<conf->max_ports; ++i) { |
| 755 | unsigned j; |
| 756 | struct conf_port *src_port; |
| 757 | |
| 758 | src_port = conf->ports[i]; |
| 759 | |
| 760 | if (!src_port) |
| 761 | continue; |
| 762 | |
| 763 | if (src_port->listener_cnt == 0) |
| 764 | continue; |
| 765 | |
| 766 | for (j=0; j<src_port->listener_cnt; ++j) { |
| 767 | if (src_port->listener_slots[j] == port) { |
| 768 | pj_array_erase(src_port->listener_slots, sizeof(SLOT_TYPE), |
| 769 | src_port->listener_cnt, j); |
| 770 | pj_assert(conf->connect_cnt > 0); |
| 771 | --conf->connect_cnt; |
| 772 | --src_port->listener_cnt; |
| 773 | break; |
| 774 | } |
| 775 | } |
| 776 | } |
| 777 | |
| 778 | /* Update transmitter_cnt of ports we're transmitting to */ |
| 779 | while (conf_port->listener_cnt) { |
| 780 | unsigned dst_slot; |
| 781 | struct conf_port *dst_port; |
| 782 | pjmedia_frame_ext *f; |
| 783 | |
| 784 | dst_slot = conf_port->listener_slots[conf_port->listener_cnt-1]; |
| 785 | dst_port = conf->ports[dst_slot]; |
| 786 | --dst_port->transmitter_cnt; |
| 787 | --conf_port->listener_cnt; |
| 788 | pj_assert(conf->connect_cnt > 0); |
| 789 | --conf->connect_cnt; |
| 790 | |
| 791 | /* Cleanup & reinit listener TX buffer. */ |
| 792 | f = (pjmedia_frame_ext*)dst_port->tx_buf; |
| 793 | f->base.type = PJMEDIA_FRAME_TYPE_NONE; |
| 794 | f->base.size = 0; |
| 795 | f->samples_cnt = 0; |
| 796 | f->subframe_cnt = 0; |
| 797 | } |
| 798 | |
| 799 | /* Remove the port. */ |
| 800 | conf->ports[port] = NULL; |
| 801 | --conf->port_cnt; |
| 802 | |
| 803 | pj_mutex_unlock(conf->mutex); |
| 804 | |
| 805 | |
| 806 | /* Stop sound if there's no connection. */ |
| 807 | if (conf->connect_cnt == 0) { |
| 808 | pause_sound(conf); |
| 809 | } |
| 810 | |
| 811 | return PJ_SUCCESS; |
| 812 | } |
| 813 | |
| 814 | |
| 815 | /* |
| 816 | * Enum ports. |
| 817 | */ |
| 818 | PJ_DEF(pj_status_t) pjmedia_conf_enum_ports( pjmedia_conf *conf, |
| 819 | unsigned ports[], |
| 820 | unsigned *p_count ) |
| 821 | { |
| 822 | unsigned i, count=0; |
| 823 | |
| 824 | PJ_ASSERT_RETURN(conf && p_count && ports, PJ_EINVAL); |
| 825 | |
| 826 | /* Lock mutex */ |
| 827 | pj_mutex_lock(conf->mutex); |
| 828 | |
| 829 | for (i=0; i<conf->max_ports && count<*p_count; ++i) { |
| 830 | if (!conf->ports[i]) |
| 831 | continue; |
| 832 | |
| 833 | ports[count++] = i; |
| 834 | } |
| 835 | |
| 836 | /* Unlock mutex */ |
| 837 | pj_mutex_unlock(conf->mutex); |
| 838 | |
| 839 | *p_count = count; |
| 840 | return PJ_SUCCESS; |
| 841 | } |
| 842 | |
| 843 | /* |
| 844 | * Get port info |
| 845 | */ |
| 846 | PJ_DEF(pj_status_t) pjmedia_conf_get_port_info( pjmedia_conf *conf, |
| 847 | unsigned slot, |
| 848 | pjmedia_conf_port_info *info) |
| 849 | { |
| 850 | struct conf_port *conf_port; |
| 851 | const pjmedia_audio_format_detail *afd; |
| 852 | |
| 853 | /* Check arguments */ |
| 854 | PJ_ASSERT_RETURN(conf && slot<conf->max_ports, PJ_EINVAL); |
| 855 | |
| 856 | /* Lock mutex */ |
| 857 | pj_mutex_lock(conf->mutex); |
| 858 | |
| 859 | /* Port must be valid. */ |
| 860 | conf_port = conf->ports[slot]; |
| 861 | if (conf_port == NULL) { |
| 862 | pj_mutex_unlock(conf->mutex); |
| 863 | return PJ_EINVAL; |
| 864 | } |
| 865 | |
| 866 | afd = pjmedia_format_get_audio_format_detail(&conf_port->info->fmt, 1); |
| 867 | |
| 868 | pj_bzero(info, sizeof(pjmedia_conf_port_info)); |
| 869 | |
| 870 | info->slot = slot; |
| 871 | info->name = conf_port->name; |
| 872 | info->tx_setting = conf_port->tx_setting; |
| 873 | info->rx_setting = conf_port->rx_setting; |
| 874 | info->listener_cnt = conf_port->listener_cnt; |
| 875 | info->listener_slots = conf_port->listener_slots; |
| 876 | info->transmitter_cnt = conf_port->transmitter_cnt; |
| 877 | info->clock_rate = afd->clock_rate; |
| 878 | info->channel_count = afd->channel_count; |
| 879 | info->samples_per_frame = conf_port->samples_per_frame; |
| 880 | info->bits_per_sample = afd->bits_per_sample; |
| 881 | info->format = conf_port->port->info.fmt; |
| 882 | info->tx_adj_level = conf_port->tx_adj_level - NORMAL_LEVEL; |
| 883 | info->rx_adj_level = conf_port->rx_adj_level - NORMAL_LEVEL; |
| 884 | |
| 885 | /* Unlock mutex */ |
| 886 | pj_mutex_unlock(conf->mutex); |
| 887 | |
| 888 | return PJ_SUCCESS; |
| 889 | } |
| 890 | |
| 891 | |
| 892 | PJ_DEF(pj_status_t) pjmedia_conf_get_ports_info(pjmedia_conf *conf, |
| 893 | unsigned *size, |
| 894 | pjmedia_conf_port_info info[]) |
| 895 | { |
| 896 | unsigned i, count=0; |
| 897 | |
| 898 | PJ_ASSERT_RETURN(conf && size && info, PJ_EINVAL); |
| 899 | |
| 900 | /* Lock mutex */ |
| 901 | pj_mutex_lock(conf->mutex); |
| 902 | |
| 903 | for (i=0; i<conf->max_ports && count<*size; ++i) { |
| 904 | if (!conf->ports[i]) |
| 905 | continue; |
| 906 | |
| 907 | pjmedia_conf_get_port_info(conf, i, &info[count]); |
| 908 | ++count; |
| 909 | } |
| 910 | |
| 911 | /* Unlock mutex */ |
| 912 | pj_mutex_unlock(conf->mutex); |
| 913 | |
| 914 | *size = count; |
| 915 | return PJ_SUCCESS; |
| 916 | } |
| 917 | |
| 918 | |
| 919 | /* |
| 920 | * Get signal level. |
| 921 | */ |
| 922 | PJ_DEF(pj_status_t) pjmedia_conf_get_signal_level( pjmedia_conf *conf, |
| 923 | unsigned slot, |
| 924 | unsigned *tx_level, |
| 925 | unsigned *rx_level) |
| 926 | { |
| 927 | struct conf_port *conf_port; |
| 928 | |
| 929 | /* Check arguments */ |
| 930 | PJ_ASSERT_RETURN(conf && slot<conf->max_ports, PJ_EINVAL); |
| 931 | |
| 932 | /* Lock mutex */ |
| 933 | pj_mutex_lock(conf->mutex); |
| 934 | |
| 935 | /* Port must be valid. */ |
| 936 | conf_port = conf->ports[slot]; |
| 937 | if (conf_port == NULL) { |
| 938 | pj_mutex_unlock(conf->mutex); |
| 939 | return PJ_EINVAL; |
| 940 | } |
| 941 | |
| 942 | if (tx_level != NULL) { |
| 943 | *tx_level = conf_port->tx_level; |
| 944 | } |
| 945 | |
| 946 | if (rx_level != NULL) |
| 947 | *rx_level = conf_port->rx_level; |
| 948 | |
| 949 | /* Unlock mutex */ |
| 950 | pj_mutex_unlock(conf->mutex); |
| 951 | |
| 952 | return PJ_SUCCESS; |
| 953 | } |
| 954 | |
| 955 | |
| 956 | /* |
| 957 | * Adjust RX level of individual port. |
| 958 | */ |
| 959 | PJ_DEF(pj_status_t) pjmedia_conf_adjust_rx_level( pjmedia_conf *conf, |
| 960 | unsigned slot, |
| 961 | int adj_level ) |
| 962 | { |
| 963 | struct conf_port *conf_port; |
| 964 | |
| 965 | /* Check arguments */ |
| 966 | PJ_ASSERT_RETURN(conf && slot<conf->max_ports, PJ_EINVAL); |
| 967 | |
| 968 | /* Value must be from -128 to +127 */ |
| 969 | /* Disabled, you can put more than +127, at your own risk: |
| 970 | PJ_ASSERT_RETURN(adj_level >= -128 && adj_level <= 127, PJ_EINVAL); |
| 971 | */ |
| 972 | PJ_ASSERT_RETURN(adj_level >= -128, PJ_EINVAL); |
| 973 | |
| 974 | /* Lock mutex */ |
| 975 | pj_mutex_lock(conf->mutex); |
| 976 | |
| 977 | /* Port must be valid. */ |
| 978 | conf_port = conf->ports[slot]; |
| 979 | if (conf_port == NULL) { |
| 980 | pj_mutex_unlock(conf->mutex); |
| 981 | return PJ_EINVAL; |
| 982 | } |
| 983 | |
| 984 | /* Level adjustment is applicable only for ports that work with raw PCM. */ |
| 985 | PJ_ASSERT_RETURN(conf_port->info->fmt.id == PJMEDIA_FORMAT_L16, |
| 986 | PJ_EIGNORED); |
| 987 | |
| 988 | /* Set normalized adjustment level. */ |
| 989 | conf_port->rx_adj_level = adj_level + NORMAL_LEVEL; |
| 990 | |
| 991 | /* Unlock mutex */ |
| 992 | pj_mutex_unlock(conf->mutex); |
| 993 | |
| 994 | return PJ_SUCCESS; |
| 995 | } |
| 996 | |
| 997 | |
| 998 | /* |
| 999 | * Adjust TX level of individual port. |
| 1000 | */ |
| 1001 | PJ_DEF(pj_status_t) pjmedia_conf_adjust_tx_level( pjmedia_conf *conf, |
| 1002 | unsigned slot, |
| 1003 | int adj_level ) |
| 1004 | { |
| 1005 | struct conf_port *conf_port; |
| 1006 | |
| 1007 | /* Check arguments */ |
| 1008 | PJ_ASSERT_RETURN(conf && slot<conf->max_ports, PJ_EINVAL); |
| 1009 | |
| 1010 | /* Value must be from -128 to +127 */ |
| 1011 | /* Disabled, you can put more than +127,, at your own risk: |
| 1012 | PJ_ASSERT_RETURN(adj_level >= -128 && adj_level <= 127, PJ_EINVAL); |
| 1013 | */ |
| 1014 | PJ_ASSERT_RETURN(adj_level >= -128, PJ_EINVAL); |
| 1015 | |
| 1016 | /* Lock mutex */ |
| 1017 | pj_mutex_lock(conf->mutex); |
| 1018 | |
| 1019 | /* Port must be valid. */ |
| 1020 | conf_port = conf->ports[slot]; |
| 1021 | if (conf_port == NULL) { |
| 1022 | pj_mutex_unlock(conf->mutex); |
| 1023 | return PJ_EINVAL; |
| 1024 | } |
| 1025 | |
| 1026 | /* Level adjustment is applicable only for ports that work with raw PCM. */ |
| 1027 | PJ_ASSERT_RETURN(conf_port->info->fmt.id == PJMEDIA_FORMAT_L16, |
| 1028 | PJ_EIGNORED); |
| 1029 | |
| 1030 | /* Set normalized adjustment level. */ |
| 1031 | conf_port->tx_adj_level = adj_level + NORMAL_LEVEL; |
| 1032 | |
| 1033 | /* Unlock mutex */ |
| 1034 | pj_mutex_unlock(conf->mutex); |
| 1035 | |
| 1036 | return PJ_SUCCESS; |
| 1037 | } |
| 1038 | |
| 1039 | /* Deliver frm_src to a listener port, eventually call port's put_frame() |
| 1040 | * when samples count in the frm_dst are equal to port's samples_per_frame. |
| 1041 | */ |
| 1042 | static pj_status_t write_frame(struct conf_port *cport_dst, |
| 1043 | const pjmedia_frame *frm_src) |
| 1044 | { |
| 1045 | pjmedia_frame *frm_dst = (pjmedia_frame*)cport_dst->tx_buf; |
| 1046 | |
| 1047 | PJ_TODO(MAKE_SURE_DEST_FRAME_HAS_ENOUGH_SPACE); |
| 1048 | |
| 1049 | frm_dst->type = frm_src->type; |
| 1050 | frm_dst->timestamp = cport_dst->ts_tx; |
| 1051 | |
| 1052 | if (frm_src->type == PJMEDIA_FRAME_TYPE_EXTENDED) { |
| 1053 | |
| 1054 | pjmedia_frame_ext *f_src = (pjmedia_frame_ext*)frm_src; |
| 1055 | pjmedia_frame_ext *f_dst = (pjmedia_frame_ext*)frm_dst; |
| 1056 | unsigned i; |
| 1057 | |
| 1058 | for (i = 0; i < f_src->subframe_cnt; ++i) { |
| 1059 | pjmedia_frame_ext_subframe *sf; |
| 1060 | |
| 1061 | /* Copy frame to listener's TX buffer. */ |
| 1062 | sf = pjmedia_frame_ext_get_subframe(f_src, i); |
| 1063 | pjmedia_frame_ext_append_subframe(f_dst, sf->data, sf->bitlen, |
| 1064 | f_src->samples_cnt / |
| 1065 | f_src->subframe_cnt); |
| 1066 | |
| 1067 | /* Check if it's time to deliver the TX buffer to listener, |
| 1068 | * i.e: samples count in TX buffer equal to listener's |
| 1069 | * samples per frame. |
| 1070 | */ |
| 1071 | if (f_dst->samples_cnt >= cport_dst->samples_per_frame) |
| 1072 | { |
| 1073 | if (cport_dst->slot) { |
| 1074 | pjmedia_port_put_frame(cport_dst->port, |
| 1075 | (pjmedia_frame*)f_dst); |
| 1076 | |
| 1077 | /* Reset TX buffer. */ |
| 1078 | f_dst->subframe_cnt = 0; |
| 1079 | f_dst->samples_cnt = 0; |
| 1080 | } |
| 1081 | |
| 1082 | /* Update TX timestamp. */ |
| 1083 | pj_add_timestamp32(&cport_dst->ts_tx, |
| 1084 | cport_dst->samples_per_frame); |
| 1085 | } |
| 1086 | } |
| 1087 | |
| 1088 | } else if (frm_src->type == PJMEDIA_FRAME_TYPE_AUDIO) { |
| 1089 | |
| 1090 | pj_int16_t *f_start, *f_end; |
| 1091 | |
| 1092 | f_start = (pj_int16_t*)frm_src->buf; |
| 1093 | f_end = f_start + (frm_src->size >> 1); |
| 1094 | |
| 1095 | while (f_start < f_end) { |
| 1096 | unsigned nsamples_to_copy, nsamples_req; |
| 1097 | |
| 1098 | /* Copy frame to listener's TX buffer. |
| 1099 | * Note that if the destination is port 0, just copy the whole |
| 1100 | * available samples. |
| 1101 | */ |
| 1102 | nsamples_to_copy = f_end - f_start; |
| 1103 | nsamples_req = cport_dst->samples_per_frame - |
| 1104 | (frm_dst->size>>1); |
| 1105 | if (cport_dst->slot && nsamples_to_copy > nsamples_req) |
| 1106 | nsamples_to_copy = nsamples_req; |
| 1107 | |
| 1108 | /* Adjust TX level. */ |
| 1109 | if (cport_dst->tx_adj_level != NORMAL_LEVEL) { |
| 1110 | pj_int16_t *p, *p_end; |
| 1111 | |
| 1112 | p = f_start; |
| 1113 | p_end = p + nsamples_to_copy; |
| 1114 | while (p < p_end) { |
| 1115 | pj_int32_t itemp = *p; |
| 1116 | |
| 1117 | /* Adjust the level */ |
| 1118 | itemp = (itemp * cport_dst->tx_adj_level) >> 7; |
| 1119 | |
| 1120 | /* Clip the signal if it's too loud */ |
| 1121 | if (itemp > MAX_LEVEL) itemp = MAX_LEVEL; |
| 1122 | else if (itemp < MIN_LEVEL) itemp = MIN_LEVEL; |
| 1123 | |
| 1124 | /* Put back in the buffer. */ |
| 1125 | *p = (pj_int16_t)itemp; |
| 1126 | ++p; |
| 1127 | } |
| 1128 | } |
| 1129 | |
| 1130 | pjmedia_copy_samples((pj_int16_t*)frm_dst->buf + (frm_dst->size>>1), |
| 1131 | f_start, |
| 1132 | nsamples_to_copy); |
| 1133 | frm_dst->size += nsamples_to_copy << 1; |
| 1134 | f_start += nsamples_to_copy; |
| 1135 | |
| 1136 | /* Check if it's time to deliver the TX buffer to listener, |
| 1137 | * i.e: samples count in TX buffer equal to listener's |
| 1138 | * samples per frame. Note that for destination port 0 this |
| 1139 | * function will just populate all samples in the TX buffer. |
| 1140 | */ |
| 1141 | if (cport_dst->slot == 0) { |
| 1142 | /* Update TX timestamp. */ |
| 1143 | pj_add_timestamp32(&cport_dst->ts_tx, nsamples_to_copy); |
| 1144 | } else if ((frm_dst->size >> 1) == |
| 1145 | cport_dst->samples_per_frame) |
| 1146 | { |
| 1147 | pjmedia_port_put_frame(cport_dst->port, frm_dst); |
| 1148 | |
| 1149 | /* Reset TX buffer. */ |
| 1150 | frm_dst->size = 0; |
| 1151 | |
| 1152 | /* Update TX timestamp. */ |
| 1153 | pj_add_timestamp32(&cport_dst->ts_tx, |
| 1154 | cport_dst->samples_per_frame); |
| 1155 | } |
| 1156 | } |
| 1157 | |
| 1158 | } else if (frm_src->type == PJMEDIA_FRAME_TYPE_NONE) { |
| 1159 | |
| 1160 | /* Check port format. */ |
| 1161 | if (cport_dst->port && |
| 1162 | cport_dst->port->info.fmt.id == PJMEDIA_FORMAT_L16) |
| 1163 | { |
| 1164 | /* When there is already some samples in listener's TX buffer, |
| 1165 | * pad the buffer with "zero samples". |
| 1166 | */ |
| 1167 | if (frm_dst->size != 0) { |
| 1168 | pjmedia_zero_samples((pj_int16_t*)frm_dst->buf, |
| 1169 | cport_dst->samples_per_frame - |
| 1170 | (frm_dst->size>>1)); |
| 1171 | |
| 1172 | frm_dst->type = PJMEDIA_FRAME_TYPE_AUDIO; |
| 1173 | frm_dst->size = cport_dst->samples_per_frame << 1; |
| 1174 | if (cport_dst->slot) { |
| 1175 | pjmedia_port_put_frame(cport_dst->port, frm_dst); |
| 1176 | |
| 1177 | /* Reset TX buffer. */ |
| 1178 | frm_dst->size = 0; |
| 1179 | } |
| 1180 | |
| 1181 | /* Update TX timestamp. */ |
| 1182 | pj_add_timestamp32(&cport_dst->ts_tx, |
| 1183 | cport_dst->samples_per_frame); |
| 1184 | } |
| 1185 | } else { |
| 1186 | pjmedia_frame_ext *f_dst = (pjmedia_frame_ext*)frm_dst; |
| 1187 | |
| 1188 | if (f_dst->samples_cnt != 0) { |
| 1189 | frm_dst->type = PJMEDIA_FRAME_TYPE_EXTENDED; |
| 1190 | pjmedia_frame_ext_append_subframe(f_dst, NULL, 0, (pj_uint16_t) |
| 1191 | (cport_dst->samples_per_frame - f_dst->samples_cnt)); |
| 1192 | if (cport_dst->slot) { |
| 1193 | pjmedia_port_put_frame(cport_dst->port, frm_dst); |
| 1194 | |
| 1195 | /* Reset TX buffer. */ |
| 1196 | f_dst->subframe_cnt = 0; |
| 1197 | f_dst->samples_cnt = 0; |
| 1198 | } |
| 1199 | |
| 1200 | /* Update TX timestamp. */ |
| 1201 | pj_add_timestamp32(&cport_dst->ts_tx, |
| 1202 | cport_dst->samples_per_frame); |
| 1203 | } |
| 1204 | } |
| 1205 | |
| 1206 | /* Synchronize clock. */ |
| 1207 | while (pj_cmp_timestamp(&cport_dst->ts_clock, |
| 1208 | &cport_dst->ts_tx) > 0) |
| 1209 | { |
| 1210 | frm_dst->type = PJMEDIA_FRAME_TYPE_NONE; |
| 1211 | frm_dst->timestamp = cport_dst->ts_tx; |
| 1212 | if (cport_dst->slot) |
| 1213 | pjmedia_port_put_frame(cport_dst->port, frm_dst); |
| 1214 | |
| 1215 | /* Update TX timestamp. */ |
| 1216 | pj_add_timestamp32(&cport_dst->ts_tx, cport_dst->samples_per_frame); |
| 1217 | } |
| 1218 | } |
| 1219 | |
| 1220 | return PJ_SUCCESS; |
| 1221 | } |
| 1222 | |
| 1223 | /* |
| 1224 | * Player callback. |
| 1225 | */ |
| 1226 | static pj_status_t get_frame(pjmedia_port *this_port, |
| 1227 | pjmedia_frame *frame) |
| 1228 | { |
| 1229 | pjmedia_conf *conf = (pjmedia_conf*) this_port->port_data.pdata; |
| 1230 | unsigned ci, i; |
| 1231 | |
| 1232 | /* Lock mutex */ |
| 1233 | pj_mutex_lock(conf->mutex); |
| 1234 | |
| 1235 | /* Call get_frame() from all ports (except port 0) that has |
| 1236 | * receiver and distribute the frame (put the frame to the destination |
| 1237 | * port's buffer to accommodate different ptime, and ultimately call |
| 1238 | * put_frame() of that port) to ports that are receiving from this port. |
| 1239 | */ |
| 1240 | for (i=1, ci=1; i<conf->max_ports && ci<conf->port_cnt; ++i) { |
| 1241 | struct conf_port *cport = conf->ports[i]; |
| 1242 | unsigned master_samples_per_frame; |
| 1243 | |
| 1244 | /* Skip empty port. */ |
| 1245 | if (!cport) |
| 1246 | continue; |
| 1247 | |
| 1248 | /* Var "ci" is to count how many ports have been visited so far. */ |
| 1249 | ++ci; |
| 1250 | |
| 1251 | master_samples_per_frame = PJMEDIA_PIA_SPF(&conf->master_port->info); |
| 1252 | |
| 1253 | /* Update clock of the port. */ |
| 1254 | pj_add_timestamp32(&cport->ts_clock, master_samples_per_frame); |
| 1255 | |
| 1256 | /* Skip if we're not allowed to receive from this port or |
| 1257 | * the port doesn't have listeners. |
| 1258 | */ |
| 1259 | if (cport->rx_setting == PJMEDIA_PORT_DISABLE || |
| 1260 | cport->listener_cnt == 0) |
| 1261 | { |
| 1262 | cport->rx_level = 0; |
| 1263 | pj_add_timestamp32(&cport->ts_rx, master_samples_per_frame); |
| 1264 | continue; |
| 1265 | } |
| 1266 | |
| 1267 | /* Get frame from each port, put it to the listener TX buffer, |
| 1268 | * and eventually call put_frame() of the listener. This loop |
| 1269 | * will also make sure the ptime between conf & port synchronized. |
| 1270 | */ |
| 1271 | while (pj_cmp_timestamp(&cport->ts_clock, &cport->ts_rx) > 0) { |
| 1272 | pjmedia_frame *f = (pjmedia_frame*)conf->buf; |
| 1273 | pj_status_t status; |
| 1274 | unsigned j; |
| 1275 | pj_int32_t level = 0; |
| 1276 | |
| 1277 | pj_add_timestamp32(&cport->ts_rx, cport->samples_per_frame); |
| 1278 | |
| 1279 | f->buf = &conf->buf[sizeof(pjmedia_frame)]; |
| 1280 | f->size = cport->samples_per_frame<<1; |
| 1281 | |
| 1282 | /* Get frame from port. */ |
| 1283 | status = pjmedia_port_get_frame(cport->port, f); |
| 1284 | if (status != PJ_SUCCESS) |
| 1285 | continue; |
| 1286 | |
| 1287 | /* Calculate & adjust RX level. */ |
| 1288 | if (f->type == PJMEDIA_FRAME_TYPE_AUDIO) { |
| 1289 | if (cport->rx_adj_level != NORMAL_LEVEL) { |
| 1290 | pj_int16_t *p = (pj_int16_t*)f->buf; |
| 1291 | pj_int16_t *end; |
| 1292 | |
| 1293 | end = p + (f->size >> 1); |
| 1294 | while (p < end) { |
| 1295 | pj_int32_t itemp = *p; |
| 1296 | |
| 1297 | /* Adjust the level */ |
| 1298 | itemp = (itemp * cport->rx_adj_level) >> 7; |
| 1299 | |
| 1300 | /* Clip the signal if it's too loud */ |
| 1301 | if (itemp > MAX_LEVEL) itemp = MAX_LEVEL; |
| 1302 | else if (itemp < MIN_LEVEL) itemp = MIN_LEVEL; |
| 1303 | |
| 1304 | level += PJ_ABS(itemp); |
| 1305 | |
| 1306 | /* Put back in the buffer. */ |
| 1307 | *p = (pj_int16_t)itemp; |
| 1308 | ++p; |
| 1309 | } |
| 1310 | level /= (f->size >> 1); |
| 1311 | } else { |
| 1312 | level = pjmedia_calc_avg_signal((const pj_int16_t*)f->buf, |
| 1313 | f->size >> 1); |
| 1314 | } |
| 1315 | } else if (f->type == PJMEDIA_FRAME_TYPE_EXTENDED) { |
| 1316 | /* For extended frame, level is unknown, so we just set |
| 1317 | * it to NORMAL_LEVEL. |
| 1318 | */ |
| 1319 | level = NORMAL_LEVEL; |
| 1320 | } |
| 1321 | |
| 1322 | cport->rx_level = pjmedia_linear2ulaw(level) ^ 0xff; |
| 1323 | |
| 1324 | /* Put the frame to all listeners. */ |
| 1325 | for (j=0; j < cport->listener_cnt; ++j) |
| 1326 | { |
| 1327 | struct conf_port *listener; |
| 1328 | |
| 1329 | listener = conf->ports[cport->listener_slots[j]]; |
| 1330 | |
| 1331 | /* Skip if this listener doesn't want to receive audio */ |
| 1332 | if (listener->tx_setting == PJMEDIA_PORT_DISABLE) { |
| 1333 | pj_add_timestamp32(&listener->ts_tx, |
| 1334 | listener->samples_per_frame); |
| 1335 | listener->tx_level = 0; |
| 1336 | continue; |
| 1337 | } |
| 1338 | |
| 1339 | status = write_frame(listener, f); |
| 1340 | if (status != PJ_SUCCESS) { |
| 1341 | listener->tx_level = 0; |
| 1342 | continue; |
| 1343 | } |
| 1344 | |
| 1345 | /* Set listener TX level based on transmitter RX level & |
| 1346 | * listener TX level. |
| 1347 | */ |
| 1348 | listener->tx_level = (cport->rx_level * listener->tx_adj_level) |
| 1349 | >> 8; |
| 1350 | } |
| 1351 | } |
| 1352 | } |
| 1353 | |
| 1354 | /* Keep alive. Update TX timestamp and send frame type NONE to all |
| 1355 | * underflow ports at their own clock. |
| 1356 | */ |
| 1357 | for (i=1, ci=1; i<conf->max_ports && ci<conf->port_cnt; ++i) { |
| 1358 | struct conf_port *cport = conf->ports[i]; |
| 1359 | |
| 1360 | /* Skip empty port. */ |
| 1361 | if (!cport) |
| 1362 | continue; |
| 1363 | |
| 1364 | /* Var "ci" is to count how many ports have been visited so far. */ |
| 1365 | ++ci; |
| 1366 | |
| 1367 | if (cport->tx_setting==PJMEDIA_PORT_MUTE || cport->transmitter_cnt==0) |
| 1368 | { |
| 1369 | pjmedia_frame_ext *f; |
| 1370 | |
| 1371 | /* Clear left-over samples in tx_buffer, if any, so that it won't |
| 1372 | * be transmitted next time we have audio signal. |
| 1373 | */ |
| 1374 | f = (pjmedia_frame_ext*)cport->tx_buf; |
| 1375 | f->base.type = PJMEDIA_FRAME_TYPE_NONE; |
| 1376 | f->base.size = 0; |
| 1377 | f->samples_cnt = 0; |
| 1378 | f->subframe_cnt = 0; |
| 1379 | |
| 1380 | cport->tx_level = 0; |
| 1381 | |
| 1382 | while (pj_cmp_timestamp(&cport->ts_clock, &cport->ts_tx) > 0) |
| 1383 | { |
| 1384 | if (cport->tx_setting == PJMEDIA_PORT_ENABLE) { |
| 1385 | pjmedia_frame tmp_f; |
| 1386 | |
| 1387 | tmp_f.timestamp = cport->ts_tx; |
| 1388 | tmp_f.type = PJMEDIA_FRAME_TYPE_NONE; |
| 1389 | tmp_f.buf = NULL; |
| 1390 | tmp_f.size = 0; |
| 1391 | |
| 1392 | pjmedia_port_put_frame(cport->port, &tmp_f); |
| 1393 | pj_add_timestamp32(&cport->ts_tx, cport->samples_per_frame); |
| 1394 | } |
| 1395 | } |
| 1396 | } |
| 1397 | } |
| 1398 | |
| 1399 | /* Return sound playback frame. */ |
| 1400 | do { |
| 1401 | struct conf_port *this_cport = conf->ports[this_port->port_data.ldata]; |
| 1402 | pjmedia_frame *f_src = (pjmedia_frame*) this_cport->tx_buf; |
| 1403 | |
| 1404 | frame->type = f_src->type; |
| 1405 | |
| 1406 | if (f_src->type == PJMEDIA_FRAME_TYPE_EXTENDED) { |
| 1407 | pjmedia_frame_ext *f_src_ = (pjmedia_frame_ext*)f_src; |
| 1408 | pjmedia_frame_ext *f_dst = (pjmedia_frame_ext*)frame; |
| 1409 | pjmedia_frame_ext_subframe *sf; |
| 1410 | unsigned samples_per_subframe; |
| 1411 | |
| 1412 | if (f_src_->samples_cnt < this_cport->samples_per_frame) { |
| 1413 | f_dst->base.type = PJMEDIA_FRAME_TYPE_NONE; |
| 1414 | f_dst->samples_cnt = 0; |
| 1415 | f_dst->subframe_cnt = 0; |
| 1416 | break; |
| 1417 | } |
| 1418 | |
| 1419 | f_dst->samples_cnt = 0; |
| 1420 | f_dst->subframe_cnt = 0; |
| 1421 | i = 0; |
| 1422 | samples_per_subframe = f_src_->samples_cnt / f_src_->subframe_cnt; |
| 1423 | |
| 1424 | |
| 1425 | while (f_dst->samples_cnt < this_cport->samples_per_frame) { |
| 1426 | sf = pjmedia_frame_ext_get_subframe(f_src_, i++); |
| 1427 | pj_assert(sf); |
| 1428 | pjmedia_frame_ext_append_subframe(f_dst, sf->data, sf->bitlen, |
| 1429 | samples_per_subframe); |
| 1430 | } |
| 1431 | |
| 1432 | /* Shift left TX buffer. */ |
| 1433 | pjmedia_frame_ext_pop_subframes(f_src_, i); |
| 1434 | |
| 1435 | } else if (f_src->type == PJMEDIA_FRAME_TYPE_AUDIO) { |
| 1436 | if ((f_src->size>>1) < this_cport->samples_per_frame) { |
| 1437 | frame->type = PJMEDIA_FRAME_TYPE_NONE; |
| 1438 | frame->size = 0; |
| 1439 | break; |
| 1440 | } |
| 1441 | |
| 1442 | pjmedia_copy_samples((pj_int16_t*)frame->buf, |
| 1443 | (pj_int16_t*)f_src->buf, |
| 1444 | this_cport->samples_per_frame); |
| 1445 | frame->size = this_cport->samples_per_frame << 1; |
| 1446 | |
| 1447 | /* Shift left TX buffer. */ |
| 1448 | f_src->size -= frame->size; |
| 1449 | if (f_src->size) |
| 1450 | pjmedia_move_samples((pj_int16_t*)f_src->buf, |
| 1451 | (pj_int16_t*)f_src->buf + |
| 1452 | this_cport->samples_per_frame, |
| 1453 | f_src->size >> 1); |
| 1454 | } else { /* PJMEDIA_FRAME_TYPE_NONE */ |
| 1455 | pjmedia_frame_ext *f_src_ = (pjmedia_frame_ext*)f_src; |
| 1456 | |
| 1457 | /* Reset source/TX buffer */ |
| 1458 | f_src_->base.size = 0; |
| 1459 | f_src_->samples_cnt = 0; |
| 1460 | f_src_->subframe_cnt = 0; |
| 1461 | } |
| 1462 | } while (0); |
| 1463 | |
| 1464 | /* Unlock mutex */ |
| 1465 | pj_mutex_unlock(conf->mutex); |
| 1466 | |
| 1467 | return PJ_SUCCESS; |
| 1468 | } |
| 1469 | |
| 1470 | /* |
| 1471 | * Recorder callback. |
| 1472 | */ |
| 1473 | static pj_status_t put_frame(pjmedia_port *this_port, |
| 1474 | pjmedia_frame *f) |
| 1475 | { |
| 1476 | pjmedia_conf *conf = (pjmedia_conf*) this_port->port_data.pdata; |
| 1477 | struct conf_port *cport; |
| 1478 | unsigned j; |
| 1479 | pj_int32_t level = 0; |
| 1480 | |
| 1481 | /* Lock mutex */ |
| 1482 | pj_mutex_lock(conf->mutex); |
| 1483 | |
| 1484 | /* Get conf port of this port */ |
| 1485 | cport = conf->ports[this_port->port_data.ldata]; |
| 1486 | if (cport == NULL) { |
| 1487 | /* Unlock mutex */ |
| 1488 | pj_mutex_unlock(conf->mutex); |
| 1489 | return PJ_SUCCESS; |
| 1490 | } |
| 1491 | |
| 1492 | pj_add_timestamp32(&cport->ts_rx, cport->samples_per_frame); |
| 1493 | |
| 1494 | /* Skip if this port is muted/disabled. */ |
| 1495 | if (cport->rx_setting == PJMEDIA_PORT_DISABLE) { |
| 1496 | cport->rx_level = 0; |
| 1497 | /* Unlock mutex */ |
| 1498 | pj_mutex_unlock(conf->mutex); |
| 1499 | return PJ_SUCCESS; |
| 1500 | } |
| 1501 | |
| 1502 | /* Skip if no port is listening to the microphone */ |
| 1503 | if (cport->listener_cnt == 0) { |
| 1504 | cport->rx_level = 0; |
| 1505 | /* Unlock mutex */ |
| 1506 | pj_mutex_unlock(conf->mutex); |
| 1507 | return PJ_SUCCESS; |
| 1508 | } |
| 1509 | |
| 1510 | /* Calculate & adjust RX level. */ |
| 1511 | if (f->type == PJMEDIA_FRAME_TYPE_AUDIO) { |
| 1512 | if (cport->rx_adj_level != NORMAL_LEVEL) { |
| 1513 | pj_int16_t *p = (pj_int16_t*)f->buf; |
| 1514 | pj_int16_t *end; |
| 1515 | |
| 1516 | end = p + (f->size >> 1); |
| 1517 | while (p < end) { |
| 1518 | pj_int32_t itemp = *p; |
| 1519 | |
| 1520 | /* Adjust the level */ |
| 1521 | itemp = (itemp * cport->rx_adj_level) >> 7; |
| 1522 | |
| 1523 | /* Clip the signal if it's too loud */ |
| 1524 | if (itemp > MAX_LEVEL) itemp = MAX_LEVEL; |
| 1525 | else if (itemp < MIN_LEVEL) itemp = MIN_LEVEL; |
| 1526 | |
| 1527 | level += PJ_ABS(itemp); |
| 1528 | |
| 1529 | /* Put back in the buffer. */ |
| 1530 | *p = (pj_int16_t)itemp; |
| 1531 | ++p; |
| 1532 | } |
| 1533 | level /= (f->size >> 1); |
| 1534 | } else { |
| 1535 | level = pjmedia_calc_avg_signal((const pj_int16_t*)f->buf, |
| 1536 | f->size >> 1); |
| 1537 | } |
| 1538 | } else if (f->type == PJMEDIA_FRAME_TYPE_EXTENDED) { |
| 1539 | /* For extended frame, level is unknown, so we just set |
| 1540 | * it to NORMAL_LEVEL. |
| 1541 | */ |
| 1542 | level = NORMAL_LEVEL; |
| 1543 | } |
| 1544 | |
| 1545 | cport->rx_level = pjmedia_linear2ulaw(level) ^ 0xff; |
| 1546 | |
| 1547 | /* Put the frame to all listeners. */ |
| 1548 | for (j=0; j < cport->listener_cnt; ++j) |
| 1549 | { |
| 1550 | struct conf_port *listener; |
| 1551 | pj_status_t status; |
| 1552 | |
| 1553 | listener = conf->ports[cport->listener_slots[j]]; |
| 1554 | |
| 1555 | /* Skip if this listener doesn't want to receive audio */ |
| 1556 | if (listener->tx_setting == PJMEDIA_PORT_DISABLE) { |
| 1557 | pj_add_timestamp32(&listener->ts_tx, |
| 1558 | listener->samples_per_frame); |
| 1559 | listener->tx_level = 0; |
| 1560 | continue; |
| 1561 | } |
| 1562 | |
| 1563 | /* Skip loopback for now. */ |
| 1564 | if (listener == cport) { |
| 1565 | pj_add_timestamp32(&listener->ts_tx, |
| 1566 | listener->samples_per_frame); |
| 1567 | listener->tx_level = 0; |
| 1568 | continue; |
| 1569 | } |
| 1570 | |
| 1571 | status = write_frame(listener, f); |
| 1572 | if (status != PJ_SUCCESS) { |
| 1573 | listener->tx_level = 0; |
| 1574 | continue; |
| 1575 | } |
| 1576 | |
| 1577 | /* Set listener TX level based on transmitter RX level & listener |
| 1578 | * TX level. |
| 1579 | */ |
| 1580 | listener->tx_level = (cport->rx_level * listener->tx_adj_level) >> 8; |
| 1581 | } |
| 1582 | |
| 1583 | /* Unlock mutex */ |
| 1584 | pj_mutex_unlock(conf->mutex); |
| 1585 | |
| 1586 | return PJ_SUCCESS; |
| 1587 | } |
| 1588 | |
| 1589 | #endif |