Emeric Vigier | 2f62582 | 2012-08-06 11:09:52 -0400 | [diff] [blame] | 1 | // Copyright (C) 1999-2005 Open Source Telecom Corporation. |
| 2 | // |
| 3 | // This program is free software; you can redistribute it and/or modify |
| 4 | // it under the terms of the GNU General Public License as published by |
| 5 | // the Free Software Foundation; either version 2 of the License, or |
| 6 | // (at your option) any later version. |
| 7 | // |
| 8 | // This program is distributed in the hope that it will be useful, |
| 9 | // but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 10 | // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 11 | // GNU General Public License for more details. |
| 12 | // |
| 13 | // You should have received a copy of the GNU General Public License |
| 14 | // along with this program; if not, write to the Free Software |
| 15 | // Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. |
| 16 | // |
| 17 | // As a special exception, you may use this file as part of a free software |
| 18 | // library without restriction. Specifically, if other files instantiate |
| 19 | // templates or use macros or inline functions from this file, or you compile |
| 20 | // this file and link it with other files to produce an executable, this |
| 21 | // file does not by itself cause the resulting executable to be covered by |
| 22 | // the GNU General Public License. This exception does not however |
| 23 | // invalidate any other reasons why the executable file might be covered by |
| 24 | // the GNU General Public License. |
| 25 | // |
| 26 | // This exception applies only to the code released under the name GNU |
| 27 | // ccRTP. If you copy code from other releases into a copy of GNU |
| 28 | // ccRTP, as the General Public License permits, the exception does |
| 29 | // not apply to the code that you add in this way. To avoid misleading |
| 30 | // anyone as to the status of such modified files, you must delete |
| 31 | // this exception notice from them. |
| 32 | // |
| 33 | // If you write modifications of your own for GNU ccRTP, it is your choice |
| 34 | // whether to permit this exception to apply to your modifications. |
| 35 | // If you do not wish that, delete this exception notice. |
| 36 | // |
| 37 | |
| 38 | /** |
| 39 | * @file rtp.h |
| 40 | * |
| 41 | * @short Generic and audio/video profile specific RTP interface of |
| 42 | * ccRTP. |
| 43 | * |
| 44 | * The classes and types in this header provide general RTP |
| 45 | * functionality (following RFC 3550) as well as audio/video RTP |
| 46 | * profile specific functionality (following RFC 3551). |
| 47 | **/ |
| 48 | |
| 49 | #ifndef CCXX_RTP_RTP_H_ |
| 50 | #define CCXX_RTP_RTP_H_ |
| 51 | |
| 52 | #include <ccrtp/cqueue.h> |
| 53 | #include <ccrtp/channel.h> |
| 54 | |
| 55 | #ifdef CCXX_NAMESPACES |
| 56 | namespace ost { |
| 57 | #endif |
| 58 | |
| 59 | /** |
| 60 | * @defgroup sessions RTP sessions. |
| 61 | * @{ |
| 62 | **/ |
| 63 | |
| 64 | /** |
| 65 | * @class RTPSessionBase |
| 66 | * |
| 67 | * Generic RTP protocol stack for exchange of realtime data. This |
| 68 | * stack uses the concept of packet send and receive queues to schedule |
| 69 | * and buffer outgoing packets and to arrange or reorder incoming packets |
| 70 | * as they arrive. |
| 71 | * |
| 72 | * This is a template class that allows customization of two aspects: |
| 73 | * the underlying network and the control protocol. The RTPDataChannel |
| 74 | * and RTCPChannel template parameters specify the socket types to |
| 75 | * use. The ServiceQueue template parameter specify which packet queue |
| 76 | * is used. |
| 77 | * |
| 78 | * RTPSessionBase objects do not have any threading policy, thus |
| 79 | * allowing to customize this aspect in derived classes (see |
| 80 | * SingleThreadRTPSession or RTPSessionPoolBase). |
| 81 | * |
| 82 | * @author David Sugar <dyfet@ostel.com> |
| 83 | * @short RTP protocol stack based on Common C++. |
| 84 | **/ |
| 85 | template <class RTPDataChannel = DualRTPUDPIPv4Channel, |
| 86 | class RTCPChannel = DualRTPUDPIPv4Channel, |
| 87 | class ServiceQueue = AVPQueue> |
| 88 | class __EXPORT TRTPSessionBase : public ServiceQueue |
| 89 | { |
| 90 | public: |
| 91 | /** |
| 92 | * Builds a session waiting for packets in a host address. |
| 93 | * |
| 94 | * @param ia Network address this socket is to be bound. |
| 95 | * @param dataPort Transport port the data socket is to be bound. |
| 96 | * @param controlPort Transport port the control socket is to be bound. |
| 97 | * @param membersSize Initial size of the membership table. |
| 98 | * @param app Application this session is associated to. |
| 99 | * */ |
| 100 | TRTPSessionBase(const InetHostAddress& ia, tpport_t dataPort, |
| 101 | tpport_t controlPort, uint32 membersSize, |
| 102 | RTPApplication& app) : |
| 103 | ServiceQueue(membersSize,app) |
| 104 | { build(ia,dataPort,controlPort); } |
| 105 | |
| 106 | /** |
| 107 | * Builds a session with the specified ssrc identifier for the |
| 108 | * local source. |
| 109 | * |
| 110 | * @param ssrc SSRC identifier for the local source. |
| 111 | * @param ia Network address this socket is to be bound. |
| 112 | * @param dataPort Transport port the data socket is to be bound. |
| 113 | * @param controlPort Transport port the control socket is to be bound. |
| 114 | * @param membersSize Initial size of the membership table. |
| 115 | * @param app Application this session is associated to. |
| 116 | **/ |
| 117 | TRTPSessionBase(uint32 ssrc, |
| 118 | const InetHostAddress& ia, |
| 119 | tpport_t dataPort, tpport_t controlPort, |
| 120 | uint32 membersSize, RTPApplication& app): |
| 121 | ServiceQueue(ssrc,membersSize,app) |
| 122 | { build(ia,dataPort,controlPort); } |
| 123 | |
| 124 | /** |
| 125 | * Builds a session waiting for packets in a multicast address. |
| 126 | * TODO: ssrc constructor for multicast! |
| 127 | * |
| 128 | * @param ia Multicast address this socket is to be bound. |
| 129 | * @param dataPort Transport port the data socket is to be bound. |
| 130 | * @param controlPort Transport port the control socket is to be bound. |
| 131 | * @param membersSize Initial size of the membership table. |
| 132 | * @param app Application this session is associated to. |
| 133 | * @param iface Index (from 0 to n) of network interface to join to |
| 134 | * multicast group. |
| 135 | **/ |
| 136 | TRTPSessionBase(const InetMcastAddress& ia, tpport_t dataPort, |
| 137 | tpport_t controlPort, uint32 membersSize, |
| 138 | RTPApplication& app, uint32 iface) : |
| 139 | ServiceQueue(membersSize,app) |
| 140 | { build(ia,dataPort,controlPort,iface); } |
| 141 | |
| 142 | /** |
| 143 | * Builds a session waiting for packets in a multicast |
| 144 | * address, with the specified ssrc identifier for the local |
| 145 | * source. |
| 146 | * |
| 147 | * @param ssrc SSRC identifier for the local source. |
| 148 | * @param ia Multicast address this socket is to be bound. |
| 149 | * @param dataPort Transport port the data socket is to be bound. |
| 150 | * @param controlPort Transport port the control socket is to be bound. |
| 151 | * @param membersSize Initial size of the membership table. |
| 152 | * @param app Application this session is associated to. |
| 153 | * @param iface Index (from 0 to n) of network interface to join to |
| 154 | * multicast group. |
| 155 | **/ |
| 156 | TRTPSessionBase(uint32 ssrc, |
| 157 | const InetMcastAddress& ia, tpport_t dataPort, |
| 158 | tpport_t controlPort, uint32 membersSize, |
| 159 | RTPApplication& app, uint32 iface) : |
| 160 | ServiceQueue(ssrc,membersSize,app) |
| 161 | { build(ia,dataPort,controlPort,iface); } |
| 162 | |
| 163 | virtual size_t dispatchBYE(const std::string &str) |
| 164 | { |
| 165 | return QueueRTCPManager::dispatchBYE(str); |
| 166 | } |
| 167 | |
| 168 | /** |
| 169 | * Set the value of the TTL field in the sent packets. |
| 170 | * |
| 171 | * @param ttl Time To Live |
| 172 | * @return error code from the socket operation |
| 173 | */ |
| 174 | inline Socket::Error |
| 175 | setMcastTTL(uint8 ttl) |
| 176 | { |
| 177 | Socket::Error error = dso->setMulticast(true); |
| 178 | if ( error ) return error; |
| 179 | error = dso->setTimeToLive(ttl); |
| 180 | if ( error ) return error; |
| 181 | error = cso->setMulticast(true); |
| 182 | if ( error ) return error; |
| 183 | return cso->setTimeToLive(ttl); |
| 184 | } |
| 185 | |
| 186 | inline virtual |
| 187 | ~TRTPSessionBase() |
| 188 | { |
| 189 | endSocket(); |
| 190 | } |
| 191 | |
| 192 | inline RTPDataChannel *getDSO(void) |
| 193 | {return dso;} |
| 194 | |
| 195 | protected: |
| 196 | /** |
| 197 | * @param timeout maximum timeout to wait, in microseconds |
| 198 | */ |
| 199 | inline bool |
| 200 | isPendingData(microtimeout_t timeout) |
| 201 | { return dso->isPendingRecv(timeout); } |
| 202 | |
| 203 | InetHostAddress |
| 204 | getDataSender(tpport_t *port = NULL) const |
| 205 | { return dso->getSender(port); } |
| 206 | |
| 207 | inline size_t |
| 208 | getNextDataPacketSize() const |
| 209 | { return dso->getNextPacketSize(); } |
| 210 | |
| 211 | /** |
| 212 | * Receive data from the data channel/socket. |
| 213 | * |
| 214 | * @param buffer Memory region to read to. |
| 215 | * @param len Maximum number of octets to get. |
| 216 | * @param na Source network address. |
| 217 | * @param tp Source transport port. |
| 218 | * @return Number of octets actually read. |
| 219 | */ |
| 220 | inline size_t |
| 221 | recvData(unsigned char* buffer, size_t len, |
| 222 | InetHostAddress& na, tpport_t& tp) |
| 223 | { na = dso->getSender(tp); return dso->recv(buffer, len); } |
| 224 | |
| 225 | inline void |
| 226 | setDataPeer(const InetAddress &host, tpport_t port) |
| 227 | { dso->setPeer(host,port); } |
| 228 | |
| 229 | |
| 230 | /** |
| 231 | * @param buffer memory region to write from |
| 232 | * @param len number of octets to write |
| 233 | */ |
| 234 | inline size_t |
| 235 | sendData(const unsigned char* const buffer, size_t len) |
| 236 | { return dso->send(buffer, len); } |
| 237 | |
| 238 | inline SOCKET getDataRecvSocket() const |
| 239 | { return dso->getRecvSocket(); } |
| 240 | |
| 241 | /** |
| 242 | * @param timeout maximum timeout to wait, in microseconds |
| 243 | * @return whether there are packets waiting to be picked |
| 244 | */ |
| 245 | inline bool |
| 246 | isPendingControl(microtimeout_t timeout) |
| 247 | { return cso->isPendingRecv(timeout); } |
| 248 | |
| 249 | InetHostAddress |
| 250 | getControlSender(tpport_t *port = NULL) const |
| 251 | { return cso->getSender(port); } |
| 252 | |
| 253 | /** |
| 254 | * Receive data from the control channel/socket. |
| 255 | * |
| 256 | * @param buffer Buffer where to get data. |
| 257 | * @param len Maximum number of octets to get. |
| 258 | * @param na Source network address. |
| 259 | * @param tp Source transport port. |
| 260 | * @return Number of octets actually read. |
| 261 | **/ |
| 262 | inline size_t |
| 263 | recvControl(unsigned char *buffer, size_t len, |
| 264 | InetHostAddress& na, tpport_t& tp) |
| 265 | { na = cso->getSender(tp); return cso->recv(buffer,len); } |
| 266 | |
| 267 | inline void |
| 268 | setControlPeer(const InetAddress &host, tpport_t port) |
| 269 | { cso->setPeer(host,port); } |
| 270 | |
| 271 | /** |
| 272 | * @return number of octets actually written |
| 273 | * @param buffer |
| 274 | * @param len |
| 275 | */ |
| 276 | inline size_t |
| 277 | sendControl(const unsigned char* const buffer, size_t len) |
| 278 | { return cso->send(buffer,len); } |
| 279 | |
| 280 | inline SOCKET getControlRecvSocket() const |
| 281 | { return cso->getRecvSocket(); } |
| 282 | |
| 283 | /** |
| 284 | * Join a multicast group. |
| 285 | * |
| 286 | * @param ia address of the multicast group |
| 287 | * @return error code from the socket operation |
| 288 | */ |
| 289 | inline Socket::Error |
| 290 | joinGroup(const InetMcastAddress& ia, uint32 iface) |
| 291 | { |
| 292 | Socket::Error error = dso->setMulticast(true); |
| 293 | if ( error ) return error; |
| 294 | error = dso->join(ia,iface); |
| 295 | if ( error ) return error; |
| 296 | error = cso->setMulticast(true); |
| 297 | if ( error ) { |
| 298 | dso->drop(ia); |
| 299 | return error; |
| 300 | } |
| 301 | error = cso->join(ia,iface); |
| 302 | if ( error ) { |
| 303 | dso->drop(ia); |
| 304 | return error; |
| 305 | } |
| 306 | return Socket::errSuccess; |
| 307 | } |
| 308 | |
| 309 | /** |
| 310 | * Leave a multicast group. |
| 311 | * |
| 312 | * @param ia address of the multicast group |
| 313 | * @return error code from the socket operation |
| 314 | */ |
| 315 | inline Socket::Error |
| 316 | leaveGroup(const InetMcastAddress& ia) |
| 317 | { |
| 318 | Socket::Error error = dso->setMulticast(false); |
| 319 | if ( error ) return error; |
| 320 | error = dso->leaveGroup(ia); |
| 321 | if ( error ) return error; |
| 322 | error = cso->setMulticast(false); |
| 323 | if ( error ) return error; |
| 324 | return cso->leaveGroup(ia); |
| 325 | } |
| 326 | |
| 327 | inline void |
| 328 | endSocket() |
| 329 | { |
| 330 | if (dso) { |
| 331 | dso->endSocket(); |
| 332 | delete dso; |
| 333 | } |
| 334 | dso = NULL; |
| 335 | if (cso) { |
| 336 | cso->endSocket(); |
| 337 | delete cso; |
| 338 | } |
| 339 | cso = NULL; |
| 340 | } |
| 341 | |
| 342 | private: |
| 343 | void |
| 344 | build(const InetHostAddress& ia, tpport_t dataPort, |
| 345 | tpport_t controlPort) |
| 346 | { |
| 347 | if ( 0 == controlPort ) { |
| 348 | dataBasePort = even_port(dataPort); |
| 349 | controlBasePort = dataBasePort + 1; |
| 350 | } else { |
| 351 | dataBasePort = dataPort; |
| 352 | controlBasePort = controlPort; |
| 353 | } |
| 354 | dso = new RTPDataChannel(ia,dataBasePort); |
| 355 | cso = new RTCPChannel(ia,controlBasePort); |
| 356 | } |
| 357 | |
| 358 | void |
| 359 | build(const InetMcastAddress& ia, tpport_t dataPort, |
| 360 | tpport_t controlPort, uint32 iface) |
| 361 | { |
| 362 | if ( 0 == controlPort ) { |
| 363 | dataBasePort = even_port(dataPort); |
| 364 | controlBasePort = dataBasePort + 1; |
| 365 | } else { |
| 366 | dataBasePort = dataPort; |
| 367 | controlBasePort = controlPort; |
| 368 | } |
| 369 | dso = new RTPDataChannel(InetHostAddress("0.0.0.0"),dataBasePort); |
| 370 | cso = new RTCPChannel(InetHostAddress("0.0.0.0"),controlBasePort); |
| 371 | joinGroup(ia,iface); |
| 372 | } |
| 373 | |
| 374 | /** |
| 375 | * Ensure a port number is odd. If it is an even number, return |
| 376 | * the next lower (odd) port number. |
| 377 | * |
| 378 | * @param port number to filter |
| 379 | * @return filtered (odd) port number |
| 380 | */ |
| 381 | inline tpport_t |
| 382 | odd_port(tpport_t port) |
| 383 | { return (port & 0x01)? (port) : (port - 1); } |
| 384 | |
| 385 | /** |
| 386 | * Ensure a port number is even. If it is an odd number, return |
| 387 | * the next lower (even) port number. |
| 388 | * |
| 389 | * @param port number to filter |
| 390 | * @return filtered (even) port number |
| 391 | */ |
| 392 | inline tpport_t |
| 393 | even_port(tpport_t port) |
| 394 | { return (port & 0x01)? (port - 1) : (port); } |
| 395 | |
| 396 | tpport_t dataBasePort; |
| 397 | tpport_t controlBasePort; |
| 398 | |
| 399 | protected: |
| 400 | RTPDataChannel* dso; |
| 401 | RTCPChannel* cso; |
| 402 | friend class RTPSessionBaseHandler; |
| 403 | }; |
| 404 | |
| 405 | /** |
| 406 | * @class SingleThreadRTPSession |
| 407 | * |
| 408 | * This template class adds the threading aspect to the RTPSessionBase |
| 409 | * template in one of the many possible ways. It inherits from a |
| 410 | * single execution thread that schedules sending of outgoing packets |
| 411 | * and receipt of incoming packets. |
| 412 | * |
| 413 | * @author Federico Montesino Pouzols <fedemp@altern.org> |
| 414 | **/ |
| 415 | template |
| 416 | <class RTPDataChannel = DualRTPUDPIPv4Channel, |
| 417 | class RTCPChannel = DualRTPUDPIPv4Channel, |
| 418 | class ServiceQueue = AVPQueue> |
| 419 | class __EXPORT SingleThreadRTPSession : |
| 420 | protected Thread, |
| 421 | public TRTPSessionBase<RTPDataChannel,RTCPChannel,ServiceQueue> |
| 422 | { |
| 423 | public: |
| 424 | SingleThreadRTPSession(const InetHostAddress& ia, |
| 425 | tpport_t dataPort = DefaultRTPDataPort, |
| 426 | tpport_t controlPort = 0, |
| 427 | int pri = 0, |
| 428 | uint32 memberssize = |
| 429 | MembershipBookkeeping::defaultMembersHashSize, |
| 430 | RTPApplication& app = defaultApplication() |
| 431 | #if defined(_MSC_VER) && _MSC_VER >= 1300 |
| 432 | ); |
| 433 | #else |
| 434 | ): |
| 435 | Thread(pri), |
| 436 | TRTPSessionBase<RTPDataChannel,RTCPChannel,ServiceQueue> |
| 437 | (ia,dataPort,controlPort,memberssize,app) |
| 438 | { } |
| 439 | #endif |
| 440 | |
| 441 | SingleThreadRTPSession(uint32 ssrc, const InetHostAddress& ia, |
| 442 | tpport_t dataPort = DefaultRTPDataPort, |
| 443 | tpport_t controlPort = 0, |
| 444 | int pri = 0, |
| 445 | uint32 memberssize = |
| 446 | MembershipBookkeeping::defaultMembersHashSize, |
| 447 | RTPApplication& app = defaultApplication() |
| 448 | #if defined(_MSC_VER) && _MSC_VER >= 1300 |
| 449 | ); |
| 450 | #else |
| 451 | ): |
| 452 | Thread(pri), |
| 453 | TRTPSessionBase<RTPDataChannel,RTCPChannel,ServiceQueue> |
| 454 | (ssrc, ia,dataPort,controlPort,memberssize,app) |
| 455 | { } |
| 456 | #endif |
| 457 | |
| 458 | SingleThreadRTPSession(const InetMcastAddress& ia, |
| 459 | tpport_t dataPort = DefaultRTPDataPort, |
| 460 | tpport_t controlPort = 0, |
| 461 | int pri = 0, |
| 462 | uint32 memberssize = |
| 463 | MembershipBookkeeping::defaultMembersHashSize, |
| 464 | RTPApplication& app = defaultApplication(), |
| 465 | uint32 iface = 0 |
| 466 | #if defined(_MSC_VER) && _MSC_VER >= 1300 |
| 467 | ); |
| 468 | #else |
| 469 | ): |
| 470 | Thread(pri), |
| 471 | TRTPSessionBase<RTPDataChannel,RTCPChannel,ServiceQueue> |
| 472 | (ia,dataPort,controlPort,memberssize,app,iface) |
| 473 | { } |
| 474 | #endif |
| 475 | |
| 476 | SingleThreadRTPSession(uint32 ssrc, const InetMcastAddress& ia, |
| 477 | tpport_t dataPort = DefaultRTPDataPort, |
| 478 | tpport_t controlPort = 0, |
| 479 | int pri = 0, |
| 480 | uint32 memberssize = |
| 481 | MembershipBookkeeping::defaultMembersHashSize, |
| 482 | RTPApplication& app = defaultApplication(), |
| 483 | uint32 iface = 0 |
| 484 | #if defined(_MSC_VER) && _MSC_VER >= 1300 |
| 485 | ); |
| 486 | #else |
| 487 | ): |
| 488 | Thread(pri), |
| 489 | TRTPSessionBase<RTPDataChannel,RTCPChannel,ServiceQueue> |
| 490 | (ssrc,ia,dataPort,controlPort,memberssize,app,iface) |
| 491 | { } |
| 492 | #endif |
| 493 | |
| 494 | |
| 495 | ~SingleThreadRTPSession() |
| 496 | { |
| 497 | if (isRunning()) { |
| 498 | disableStack(); Thread::join(); |
| 499 | } |
| 500 | } |
| 501 | |
| 502 | #if defined(_MSC_VER) && _MSC_VER >= 1300 |
| 503 | virtual void startRunning(); |
| 504 | #else |
| 505 | /** |
| 506 | * Activate stack and start service thread. |
| 507 | **/ |
| 508 | void |
| 509 | startRunning() |
| 510 | { enableStack(); Thread::start(); } |
| 511 | #endif |
| 512 | |
| 513 | |
| 514 | protected: |
| 515 | inline void disableStack(void) |
| 516 | {TRTPSessionBase<RTPDataChannel,RTCPChannel,ServiceQueue>::disableStack();} |
| 517 | |
| 518 | inline void enableStack(void) |
| 519 | {TRTPSessionBase<RTPDataChannel,RTCPChannel,ServiceQueue>::enableStack();} |
| 520 | |
| 521 | inline microtimeout_t getSchedulingTimeout(void) |
| 522 | {return TRTPSessionBase<RTPDataChannel,RTCPChannel,ServiceQueue>::getSchedulingTimeout();} |
| 523 | |
| 524 | inline void controlReceptionService(void) |
| 525 | {TRTPSessionBase<RTPDataChannel,RTCPChannel,ServiceQueue>::controlReceptionService();} |
| 526 | |
| 527 | inline void controlTransmissionService(void) |
| 528 | {TRTPSessionBase<RTPDataChannel,RTCPChannel,ServiceQueue>::controlTransmissionService();} |
| 529 | |
| 530 | inline timeval getRTCPCheckInterval(void) |
| 531 | {return TRTPSessionBase<RTPDataChannel,RTCPChannel,ServiceQueue>::getRTCPCheckInterval();} |
| 532 | |
| 533 | inline size_t dispatchDataPacket(void) |
| 534 | {return TRTPSessionBase<RTPDataChannel,RTCPChannel,ServiceQueue>::dispatchDataPacket();} |
| 535 | |
| 536 | #if defined(_MSC_VER) && _MSC_VER >= 1300 |
| 537 | virtual void run(void); |
| 538 | |
| 539 | virtual void timerTick(void); |
| 540 | |
| 541 | virtual bool isPendingData(microtimeout_t timeout); |
| 542 | #else |
| 543 | |
| 544 | virtual void timerTick(void) |
| 545 | {return;} |
| 546 | |
| 547 | virtual bool isPendingData(microtimeout_t timeout) |
| 548 | {return TRTPSessionBase<RTPDataChannel,RTCPChannel,ServiceQueue>::isPendingData(timeout);} |
| 549 | |
| 550 | /** |
| 551 | * Single runnable method for this RTP stacks, schedules |
| 552 | * outgoing and incoming RTP data and RTCP packets. |
| 553 | **/ |
| 554 | virtual void run(void) |
| 555 | { |
| 556 | microtimeout_t timeout = 0; |
| 557 | while ( ServiceQueue::isActive() ) { |
| 558 | if ( timeout < 1000 ){ // !(timeout/1000) |
| 559 | timeout = getSchedulingTimeout(); |
| 560 | } |
| 561 | setCancel(cancelDeferred); |
| 562 | controlReceptionService(); |
| 563 | controlTransmissionService(); |
| 564 | setCancel(cancelImmediate); |
| 565 | microtimeout_t maxWait = |
| 566 | timeval2microtimeout(getRTCPCheckInterval()); |
| 567 | // make sure the scheduling timeout is |
| 568 | // <= the check interval for RTCP |
| 569 | // packets |
| 570 | timeout = (timeout > maxWait)? maxWait : timeout; |
| 571 | if ( timeout < 1000 ) { // !(timeout/1000) |
| 572 | setCancel(cancelDeferred); |
| 573 | dispatchDataPacket(); |
| 574 | setCancel(cancelImmediate); |
| 575 | timerTick(); |
| 576 | } else { |
| 577 | if ( isPendingData(timeout/1000) ) { |
| 578 | setCancel(cancelDeferred); |
| 579 | if (ServiceQueue::isActive()) { // take in only if active |
| 580 | takeInDataPacket(); |
| 581 | } |
| 582 | setCancel(cancelImmediate); |
| 583 | } |
| 584 | timeout = 0; |
| 585 | } |
| 586 | } |
| 587 | dispatchBYE("GNU ccRTP stack finishing."); |
| 588 | // Thread::exit(); |
| 589 | } |
| 590 | |
| 591 | #endif |
| 592 | |
| 593 | inline size_t takeInDataPacket(void) |
| 594 | {return TRTPSessionBase<RTPDataChannel,RTCPChannel,ServiceQueue>::takeInDataPacket();} |
| 595 | |
| 596 | inline size_t dispatchBYE(const std::string &str) |
| 597 | {return TRTPSessionBase<RTPDataChannel,RTCPChannel,ServiceQueue>::dispatchBYE(str);} |
| 598 | }; |
| 599 | |
| 600 | /** |
| 601 | * @typedef RTPSession |
| 602 | * |
| 603 | * Uses two pairs of sockets for RTP data and RTCP |
| 604 | * transmission/reception. |
| 605 | * |
| 606 | * @short UDP/IPv4 RTP Session scheduled by one thread of execution. |
| 607 | **/ |
| 608 | typedef SingleThreadRTPSession<> RTPSession; |
| 609 | |
| 610 | /** |
| 611 | * @typedef RTPSocket |
| 612 | * |
| 613 | * Alias for RTPSession. |
| 614 | **/ |
| 615 | typedef RTPSession RTPSocket; |
| 616 | |
| 617 | /** |
| 618 | * @typedef SymmetricRTPSession |
| 619 | * |
| 620 | * Uses one pair of sockets, (1) for RTP data and (2) for RTCP |
| 621 | * transmission/reception. |
| 622 | * |
| 623 | * @short Symmetric UDP/IPv4 RTP session scheduled by one thread of execution. |
| 624 | **/ |
| 625 | typedef SingleThreadRTPSession<SymmetricRTPChannel, |
| 626 | SymmetricRTPChannel> SymmetricRTPSession; |
| 627 | |
| 628 | #ifdef CCXX_IPV6 |
| 629 | |
| 630 | /** |
| 631 | * @class RTPSessionBaseIPV6 |
| 632 | * |
| 633 | * Generic RTP protocol stack for exchange of realtime data. This |
| 634 | * stack uses the concept of packet send and receive queues to schedule |
| 635 | * and buffer outgoing packets and to arrange or reorder incoming packets |
| 636 | * as they arrive. |
| 637 | * |
| 638 | * This is a template class that allows customization of two aspects: |
| 639 | * the underlying network and the control protocol. The RTPDataChannel |
| 640 | * and RTCPChannel template parameters specify the socket types to |
| 641 | * use. The ServiceQueue template parameter specify which packet queue |
| 642 | * is used. |
| 643 | * |
| 644 | * RTPSessionBase objects do not have any threading policy, thus |
| 645 | * allowing to customize this aspect in derived classes (see |
| 646 | * SingleThreadRTPSession or RTPSessionPoolBase). |
| 647 | * |
| 648 | * @author David Sugar <dyfet@ostel.com> |
| 649 | * @short RTP protocol stack based on Common C++. |
| 650 | **/ |
| 651 | template <class RTPDataChannel = DualRTPUDPIPv6Channel, |
| 652 | class RTCPChannel = DualRTPUDPIPv6Channel, |
| 653 | class ServiceQueue = AVPQueue> |
| 654 | class __EXPORT TRTPSessionBaseIPV6 : public ServiceQueue |
| 655 | { |
| 656 | public: |
| 657 | /** |
| 658 | * Builds a session waiting for packets in a host address. |
| 659 | * |
| 660 | * @param ia Network address this socket is to be bound. |
| 661 | * @param dataPort Transport port the data socket is to be bound. |
| 662 | * @param controlPort Transport port the control socket is to be bound. |
| 663 | * @param membersSize Initial size of the membership table. |
| 664 | * @param app Application this session is associated to. |
| 665 | * */ |
| 666 | TRTPSessionBaseIPV6(const IPV6Host& ia, tpport_t dataPort, |
| 667 | tpport_t controlPort, uint32 membersSize, |
| 668 | RTPApplication& app) : |
| 669 | ServiceQueue(membersSize,app) |
| 670 | { build(ia,dataPort,controlPort); } |
| 671 | |
| 672 | /** |
| 673 | * Builds a session with the specified ssrc identifier for the |
| 674 | * local source. |
| 675 | * |
| 676 | * @param ssrc SSRC identifier for the local source. |
| 677 | * @param ia Network address this socket is to be bound. |
| 678 | * @param dataPort Transport port the data socket is to be bound. |
| 679 | * @param controlPort Transport port the control socket is to be bound. |
| 680 | * @param membersSize Initial size of the membership table. |
| 681 | * @param app Application this session is associated to. |
| 682 | **/ |
| 683 | TRTPSessionBaseIPV6(uint32 ssrc, |
| 684 | const IPV6Host& ia, |
| 685 | tpport_t dataPort, tpport_t controlPort, |
| 686 | uint32 membersSize, RTPApplication& app): |
| 687 | ServiceQueue(ssrc,membersSize,app) |
| 688 | { build(ia,dataPort,controlPort); } |
| 689 | |
| 690 | /** |
| 691 | * Builds a session waiting for packets in a multicast address. |
| 692 | * TODO: ssrc constructor for multicast! |
| 693 | * |
| 694 | * @param ia Multicast address this socket is to be bound. |
| 695 | * @param dataPort Transport port the data socket is to be bound. |
| 696 | * @param controlPort Transport port the control socket is to be bound. |
| 697 | * @param membersSize Initial size of the membership table. |
| 698 | * @param app Application this session is associated to. |
| 699 | * @param iface Index (from 0 to n) of network interface to join to |
| 700 | * multicast group. |
| 701 | **/ |
| 702 | TRTPSessionBaseIPV6(const IPV6Multicast& ia, tpport_t dataPort, |
| 703 | tpport_t controlPort, uint32 membersSize, |
| 704 | RTPApplication& app, uint32 iface) : |
| 705 | ServiceQueue(membersSize,app) |
| 706 | { build(ia,dataPort,controlPort,iface); } |
| 707 | |
| 708 | /** |
| 709 | * Builds a session waiting for packets in a multicast |
| 710 | * address, with the specified ssrc identifier for the local |
| 711 | * source. |
| 712 | * |
| 713 | * @param ssrc SSRC identifier for the local source. |
| 714 | * @param ia Multicast address this socket is to be bound. |
| 715 | * @param dataPort Transport port the data socket is to be bound. |
| 716 | * @param controlPort Transport port the control socket is to be bound. |
| 717 | * @param membersSize Initial size of the membership table. |
| 718 | * @param app Application this session is associated to. |
| 719 | * @param iface Index (from 0 to n) of network interface to join to |
| 720 | * multicast group. |
| 721 | **/ |
| 722 | TRTPSessionBaseIPV6(uint32 ssrc, |
| 723 | const IPV6Multicast& ia, tpport_t dataPort, |
| 724 | tpport_t controlPort, uint32 membersSize, |
| 725 | RTPApplication& app, uint32 iface) : |
| 726 | ServiceQueue(ssrc,membersSize,app) |
| 727 | { build(ia,dataPort,controlPort,iface); } |
| 728 | |
| 729 | virtual size_t dispatchBYE(const std::string &str) |
| 730 | { |
| 731 | return QueueRTCPManager::dispatchBYE(str); |
| 732 | } |
| 733 | |
| 734 | inline virtual |
| 735 | ~TRTPSessionBaseIPV6() |
| 736 | { |
| 737 | endSocket(); |
| 738 | } |
| 739 | |
| 740 | inline RTPDataChannel *getDSO(void) |
| 741 | {return dso;} |
| 742 | |
| 743 | protected: |
| 744 | /** |
| 745 | * @param timeout maximum timeout to wait, in microseconds |
| 746 | */ |
| 747 | inline bool |
| 748 | isPendingData(microtimeout_t timeout) |
| 749 | { return dso->isPendingRecv(timeout); } |
| 750 | |
| 751 | inline IPV6Host |
| 752 | getDataSender(tpport_t *port = NULL) const |
| 753 | { return dso->getSender(port); } |
| 754 | |
| 755 | inline size_t |
| 756 | getNextDataPacketSize() const |
| 757 | { return dso->getNextPacketSize(); } |
| 758 | |
| 759 | /** |
| 760 | * Receive data from the data channel/socket. |
| 761 | * |
| 762 | * @param buffer Memory region to read to. |
| 763 | * @param len Maximum number of octets to get. |
| 764 | * @param na Source network address. |
| 765 | * @param tp Source transport port. |
| 766 | * @return Number of octets actually read. |
| 767 | */ |
| 768 | inline size_t |
| 769 | recvData(unsigned char* buffer, size_t len, |
| 770 | IPV6Host& na, tpport_t& tp) |
| 771 | { na = dso->getSender(tp); return dso->recv(buffer, len); } |
| 772 | |
| 773 | inline void |
| 774 | setDataPeerIPV6(const IPV6Host &host, tpport_t port) |
| 775 | { dso->setPeer(host,port); } |
| 776 | |
| 777 | /** |
| 778 | * @param buffer memory region to write from |
| 779 | * @param len number of octets to write |
| 780 | */ |
| 781 | inline size_t |
| 782 | sendDataIPV6(const unsigned char* const buffer, size_t len) |
| 783 | { return dso->send(buffer, len); } |
| 784 | |
| 785 | inline SOCKET getDataRecvSocket() const |
| 786 | { return dso->getRecvSocket(); } |
| 787 | |
| 788 | /** |
| 789 | * @param timeout maximum timeout to wait, in microseconds |
| 790 | * @return whether there are packets waiting to be picked |
| 791 | */ |
| 792 | inline bool |
| 793 | isPendingControl(microtimeout_t timeout) |
| 794 | { return cso->isPendingRecv(timeout); } |
| 795 | |
| 796 | inline IPV6Host |
| 797 | getControlSender(tpport_t *port = NULL) const |
| 798 | { return cso->getSender(port); } |
| 799 | |
| 800 | /** |
| 801 | * Receive data from the control channel/socket. |
| 802 | * |
| 803 | * @param buffer Buffer where to get data. |
| 804 | * @param len Maximum number of octets to get. |
| 805 | * @param na Source network address. |
| 806 | * @param tp Source transport port. |
| 807 | * @return Number of octets actually read. |
| 808 | **/ |
| 809 | inline size_t |
| 810 | recvControl(unsigned char *buffer, size_t len, |
| 811 | IPV6Host& na, tpport_t& tp) |
| 812 | { na = cso->getSender(tp); return cso->recv(buffer,len); } |
| 813 | |
| 814 | inline void |
| 815 | setControlPeerIPV6(const IPV6Host &host, tpport_t port) |
| 816 | { cso->setPeer(host,port); } |
| 817 | |
| 818 | /** |
| 819 | * @return number of octets actually written |
| 820 | * @param buffer |
| 821 | * @param len |
| 822 | */ |
| 823 | inline size_t |
| 824 | sendControl(const unsigned char* const buffer, size_t len) |
| 825 | { return cso->send(buffer,len); } |
| 826 | |
| 827 | inline SOCKET getControlRecvSocket() const |
| 828 | { return cso->getRecvSocket(); } |
| 829 | |
| 830 | inline void |
| 831 | endSocket() |
| 832 | { |
| 833 | dso->endSocket(); |
| 834 | cso->endSocket(); |
| 835 | if (dso) delete dso; |
| 836 | dso = NULL; |
| 837 | if (cso) delete cso; |
| 838 | cso = NULL; |
| 839 | } |
| 840 | |
| 841 | private: |
| 842 | void |
| 843 | build(const IPV6Host& ia, tpport_t dataPort, |
| 844 | tpport_t controlPort) |
| 845 | { |
| 846 | if ( 0 == controlPort ) { |
| 847 | dataBasePort = even_port(dataPort); |
| 848 | controlBasePort = dataBasePort + 1; |
| 849 | } else { |
| 850 | dataBasePort = dataPort; |
| 851 | controlBasePort = controlPort; |
| 852 | } |
| 853 | dso = new RTPDataChannel(ia,dataBasePort); |
| 854 | cso = new RTCPChannel(ia,controlBasePort); |
| 855 | } |
| 856 | |
| 857 | void |
| 858 | build(const IPV6Multicast& ia, tpport_t dataPort, |
| 859 | tpport_t controlPort, uint32 iface) |
| 860 | { |
| 861 | if ( 0 == controlPort ) { |
| 862 | dataBasePort = even_port(dataPort); |
| 863 | controlBasePort = dataBasePort + 1; |
| 864 | } else { |
| 865 | dataBasePort = dataPort; |
| 866 | controlBasePort = controlPort; |
| 867 | } |
| 868 | dso = new RTPDataChannel(IPV6Host("0.0.0.0"),dataBasePort); |
| 869 | cso = new RTCPChannel(IPV6Host("0.0.0.0"),controlBasePort); |
| 870 | joinGroup(ia,iface); |
| 871 | } |
| 872 | |
| 873 | /** |
| 874 | * Join a multicast group. |
| 875 | * |
| 876 | * @param ia address of the multicast group |
| 877 | * @return error code from the socket operation |
| 878 | */ |
| 879 | inline Socket::Error |
| 880 | joinGroup(const IPV6Multicast& ia, uint32 iface) |
| 881 | { |
| 882 | Socket::Error error = dso->setMulticast(true); |
| 883 | if ( error ) return error; |
| 884 | error = dso->join(ia,iface); |
| 885 | if ( error ) return error; |
| 886 | error = cso->setMulticast(true); |
| 887 | if ( error ) { |
| 888 | dso->drop(ia); |
| 889 | return error; |
| 890 | } |
| 891 | error = cso->join(ia,iface); |
| 892 | if ( error ) { |
| 893 | dso->drop(ia); |
| 894 | return error; |
| 895 | } |
| 896 | return Socket::errSuccess; |
| 897 | } |
| 898 | |
| 899 | /** |
| 900 | * Leave a multicast group. |
| 901 | * |
| 902 | * @param ia address of the multicast group |
| 903 | * @return error code from the socket operation |
| 904 | */ |
| 905 | inline Socket::Error |
| 906 | leaveGroup(const IPV6Multicast& ia) |
| 907 | { |
| 908 | Socket::Error error = dso->setMulticast(false); |
| 909 | if ( error ) return error; |
| 910 | error = dso->leaveGroup(ia); |
| 911 | if ( error ) return error; |
| 912 | error = cso->setMulticast(false); |
| 913 | if ( error ) return error; |
| 914 | return cso->leaveGroup(ia); |
| 915 | } |
| 916 | |
| 917 | /** |
| 918 | * Set the value of the TTL field in the sent packets. |
| 919 | * |
| 920 | * @param ttl Time To Live |
| 921 | * @return error code from the socket operation |
| 922 | */ |
| 923 | inline Socket::Error |
| 924 | setMcastTTL(uint8 ttl) |
| 925 | { |
| 926 | Socket::Error error = dso->setMulticast(true); |
| 927 | if ( error ) return error; |
| 928 | error = dso->setTimeToLive(ttl); |
| 929 | if ( error ) return error; |
| 930 | error = cso->setMulticast(true); |
| 931 | if ( error ) return error; |
| 932 | return cso->setTimeToLive(ttl); |
| 933 | } |
| 934 | |
| 935 | /** |
| 936 | * Ensure a port number is odd. If it is an even number, return |
| 937 | * the next lower (odd) port number. |
| 938 | * |
| 939 | * @param port number to filter |
| 940 | * @return filtered (odd) port number |
| 941 | */ |
| 942 | inline tpport_t |
| 943 | odd_port(tpport_t port) |
| 944 | { return (port & 0x01)? (port) : (port - 1); } |
| 945 | |
| 946 | /** |
| 947 | * Ensure a port number is even. If it is an odd number, return |
| 948 | * the next lower (even) port number. |
| 949 | * |
| 950 | * @param port number to filter |
| 951 | * @return filtered (even) port number |
| 952 | */ |
| 953 | inline tpport_t |
| 954 | even_port(tpport_t port) |
| 955 | { return (port & 0x01)? (port - 1) : (port); } |
| 956 | |
| 957 | tpport_t dataBasePort; |
| 958 | tpport_t controlBasePort; |
| 959 | |
| 960 | protected: |
| 961 | RTPDataChannel* dso; |
| 962 | RTCPChannel* cso; |
| 963 | friend class RTPSessionBaseHandler; |
| 964 | }; |
| 965 | |
| 966 | /** |
| 967 | * @class SingleThreadRTPSessionIPV6 |
| 968 | * |
| 969 | * This template class adds the threading aspect to the RTPSessionBase |
| 970 | * template in one of the many possible ways. It inherits from a |
| 971 | * single execution thread that schedules sending of outgoing packets |
| 972 | * and receipt of incoming packets. |
| 973 | * |
| 974 | * @author David Sugar <dyfet@gnutelephony.org> |
| 975 | **/ |
| 976 | template |
| 977 | <class RTPDataChannel = DualRTPUDPIPv6Channel, |
| 978 | class RTCPChannel = DualRTPUDPIPv6Channel, |
| 979 | class ServiceQueue = AVPQueue> |
| 980 | class __EXPORT SingleThreadRTPSessionIPV6 : |
| 981 | protected Thread, |
| 982 | public TRTPSessionBaseIPV6<RTPDataChannel,RTCPChannel,ServiceQueue> |
| 983 | { |
| 984 | public: |
| 985 | SingleThreadRTPSessionIPV6(const IPV6Host& ia, |
| 986 | tpport_t dataPort = DefaultRTPDataPort, |
| 987 | tpport_t controlPort = 0, |
| 988 | int pri = 0, |
| 989 | uint32 memberssize = |
| 990 | MembershipBookkeeping::defaultMembersHashSize, |
| 991 | RTPApplication& app = defaultApplication() |
| 992 | #if defined(_MSC_VER) && _MSC_VER >= 1300 |
| 993 | ); |
| 994 | #else |
| 995 | ): |
| 996 | Thread(pri), |
| 997 | TRTPSessionBaseIPV6<RTPDataChannel,RTCPChannel,ServiceQueue> |
| 998 | (ia,dataPort,controlPort,memberssize,app) |
| 999 | { } |
| 1000 | #endif |
| 1001 | |
| 1002 | SingleThreadRTPSessionIPV6(const IPV6Multicast& ia, |
| 1003 | tpport_t dataPort = DefaultRTPDataPort, |
| 1004 | tpport_t controlPort = 0, |
| 1005 | int pri = 0, |
| 1006 | uint32 memberssize = |
| 1007 | MembershipBookkeeping::defaultMembersHashSize, |
| 1008 | RTPApplication& app = defaultApplication(), |
| 1009 | uint32 iface = 0 |
| 1010 | #if defined(_MSC_VER) && _MSC_VER >= 1300 |
| 1011 | ); |
| 1012 | #else |
| 1013 | ): |
| 1014 | Thread(pri), |
| 1015 | TRTPSessionBaseIPV6<RTPDataChannel,RTCPChannel,ServiceQueue> |
| 1016 | (ia,dataPort,controlPort,memberssize,app,iface) |
| 1017 | { } |
| 1018 | #endif |
| 1019 | |
| 1020 | ~SingleThreadRTPSessionIPV6() |
| 1021 | { |
| 1022 | if (isRunning()) { |
| 1023 | disableStack(); Thread::join(); |
| 1024 | } |
| 1025 | } |
| 1026 | |
| 1027 | #if defined(_MSC_VER) && _MSC_VER >= 1300 |
| 1028 | virtual void startRunning(); |
| 1029 | #else |
| 1030 | /** |
| 1031 | * Activate stack and start service thread. |
| 1032 | **/ |
| 1033 | void |
| 1034 | startRunning() |
| 1035 | { enableStack(); Thread::start(); } |
| 1036 | #endif |
| 1037 | |
| 1038 | |
| 1039 | protected: |
| 1040 | inline void enableStack(void) |
| 1041 | {TRTPSessionBase<RTPDataChannel,RTCPChannel,ServiceQueue>::enableStack();} |
| 1042 | |
| 1043 | inline void disableStack(void) |
| 1044 | {TRTPSessionBase<RTPDataChannel,RTCPChannel,ServiceQueue>::disableStack();} |
| 1045 | |
| 1046 | inline microtimeout_t getSchedulingTimeout(void) |
| 1047 | {return TRTPSessionBase<RTPDataChannel,RTCPChannel,ServiceQueue>::getSchedulingTimeout();} |
| 1048 | |
| 1049 | inline void controlReceptionService(void) |
| 1050 | {TRTPSessionBase<RTPDataChannel,RTCPChannel,ServiceQueue>::controlReceptionService();} |
| 1051 | |
| 1052 | inline void controlTransmissionService(void) |
| 1053 | {TRTPSessionBase<RTPDataChannel,RTCPChannel,ServiceQueue>::controlTransmissionService();} |
| 1054 | |
| 1055 | inline timeval getRTCPCheckInterval(void) |
| 1056 | {return TRTPSessionBase<RTPDataChannel,RTCPChannel,ServiceQueue>::getRTCPCheckInterval();} |
| 1057 | |
| 1058 | inline size_t dispatchDataPacket(void) |
| 1059 | {return TRTPSessionBase<RTPDataChannel,RTCPChannel,ServiceQueue>::dispatchDataPacket();} |
| 1060 | |
| 1061 | #if defined(_MSC_VER) && _MSC_VER >= 1300 |
| 1062 | virtual void run(void); |
| 1063 | |
| 1064 | virtual void timerTick(void); |
| 1065 | |
| 1066 | virtual bool isPendingData(microtimeout_t timeout); |
| 1067 | #else |
| 1068 | |
| 1069 | virtual void timerTick(void) |
| 1070 | {return;} |
| 1071 | |
| 1072 | virtual bool isPendingData(microtimeout_t timeout) |
| 1073 | {return TRTPSessionBase<RTPDataChannel,RTCPChannel,ServiceQueue>::isPendingData(timeout);} |
| 1074 | |
| 1075 | /** |
| 1076 | * Single runnable method for this RTP stacks, schedules |
| 1077 | * outgoing and incoming RTP data and RTCP packets. |
| 1078 | **/ |
| 1079 | virtual void run(void) |
| 1080 | { |
| 1081 | microtimeout_t timeout = 0; |
| 1082 | while ( ServiceQueue::isActive() ) { |
| 1083 | if ( timeout < 1000 ){ // !(timeout/1000) |
| 1084 | timeout = getSchedulingTimeout(); |
| 1085 | } |
| 1086 | setCancel(cancelDeferred); |
| 1087 | controlReceptionService(); |
| 1088 | controlTransmissionService(); |
| 1089 | setCancel(cancelImmediate); |
| 1090 | microtimeout_t maxWait = |
| 1091 | timeval2microtimeout(getRTCPCheckInterval()); |
| 1092 | // make sure the scheduling timeout is |
| 1093 | // <= the check interval for RTCP |
| 1094 | // packets |
| 1095 | timeout = (timeout > maxWait)? maxWait : timeout; |
| 1096 | if ( timeout < 1000 ) { // !(timeout/1000) |
| 1097 | setCancel(cancelDeferred); |
| 1098 | dispatchDataPacket(); |
| 1099 | setCancel(cancelImmediate); |
| 1100 | timerTick(); |
| 1101 | } else { |
| 1102 | if ( isPendingData(timeout/1000) ) { |
| 1103 | setCancel(cancelDeferred); |
| 1104 | takeInDataPacket(); |
| 1105 | setCancel(cancelImmediate); |
| 1106 | } |
| 1107 | timeout = 0; |
| 1108 | } |
| 1109 | } |
| 1110 | dispatchBYE("GNU ccRTP stack finishing."); |
| 1111 | Thread::exit(); |
| 1112 | } |
| 1113 | |
| 1114 | #endif |
| 1115 | |
| 1116 | inline size_t takeInDataPacket(void) |
| 1117 | {return TRTPSessionBase<RTPDataChannel,RTCPChannel,ServiceQueue>::takeInDataPacket();} |
| 1118 | |
| 1119 | inline size_t dispatchBYE(const std::string &str) |
| 1120 | {return TRTPSessionBase<RTPDataChannel,RTCPChannel,ServiceQueue>::dispatchBYE(str);} |
| 1121 | }; |
| 1122 | |
| 1123 | /** |
| 1124 | * @typedef RTPSession |
| 1125 | * |
| 1126 | * Uses two pairs of sockets for RTP data and RTCP |
| 1127 | * transmission/reception. |
| 1128 | * |
| 1129 | * @short UDP/IPv6 RTP Session scheduled by one thread of execution. |
| 1130 | **/ |
| 1131 | typedef SingleThreadRTPSessionIPV6<> RTPSessionIPV6; |
| 1132 | |
| 1133 | /** |
| 1134 | * @typedef RTPSocket |
| 1135 | * |
| 1136 | * Alias for RTPSession. |
| 1137 | **/ |
| 1138 | typedef RTPSessionIPV6 RTPSocketIPV6; |
| 1139 | |
| 1140 | /** |
| 1141 | * @typedef SymmetricRTPSession |
| 1142 | * |
| 1143 | * Uses one pair of sockets, (1) for RTP data and (2) for RTCP |
| 1144 | * transmission/reception. |
| 1145 | * |
| 1146 | * @short Symmetric UDP/IPv6 RTP session scheduled by one thread of execution. |
| 1147 | **/ |
| 1148 | typedef SingleThreadRTPSessionIPV6<SymmetricRTPChannelIPV6, |
| 1149 | SymmetricRTPChannelIPV6> SymmetricRTPSessionIPV6; |
| 1150 | |
| 1151 | |
| 1152 | #endif |
| 1153 | |
| 1154 | /** @}*/ // sessions |
| 1155 | |
| 1156 | #ifdef CCXX_NAMESPACES |
| 1157 | } |
| 1158 | #endif |
| 1159 | |
| 1160 | #endif //CCXX_RTP_RTP_H_ |
| 1161 | |
| 1162 | /** EMACS ** |
| 1163 | * Local variables: |
| 1164 | * mode: c++ |
| 1165 | * c-basic-offset: 8 |
| 1166 | * End: |
| 1167 | */ |