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| 1 /* | |
| 2 * Copyright 2012 The WebRTC project authors. All Rights Reserved. | |
| 3 * | |
| 4 * Use of this source code is governed by a BSD-style license | |
| 5 * that can be found in the LICENSE file in the root of the source | |
| 6 * tree. An additional intellectual property rights grant can be found | |
| 7 * in the file PATENTS. All contributing project authors may | |
| 8 * be found in the AUTHORS file in the root of the source tree. | |
| 9 */ | |
| 10 | |
| 11 #ifndef WEBRTC_API_WEBRTCSESSION_H_ | |
| 12 #define WEBRTC_API_WEBRTCSESSION_H_ | |
| 13 | |
| 14 #include <memory> | |
| 15 #include <set> | |
| 16 #include <string> | |
| 17 #include <vector> | |
| 18 | |
| 19 #include "webrtc/api/datachannel.h" | |
| 20 #include "webrtc/api/dtmfsender.h" | |
| 21 #include "webrtc/api/mediacontroller.h" | |
| 22 #include "webrtc/api/peerconnectioninterface.h" | |
| 23 #include "webrtc/api/statstypes.h" | |
| 24 #include "webrtc/base/constructormagic.h" | |
| 25 #include "webrtc/base/sigslot.h" | |
| 26 #include "webrtc/base/sslidentity.h" | |
| 27 #include "webrtc/base/thread.h" | |
| 28 #include "webrtc/media/base/mediachannel.h" | |
| 29 #include "webrtc/p2p/base/candidate.h" | |
| 30 #include "webrtc/p2p/base/transportcontroller.h" | |
| 31 #include "webrtc/pc/mediasession.h" | |
| 32 | |
| 33 #ifdef HAVE_QUIC | |
| 34 #include "webrtc/api/quicdatatransport.h" | |
| 35 #endif // HAVE_QUIC | |
| 36 | |
| 37 namespace cricket { | |
| 38 | |
| 39 class ChannelManager; | |
| 40 class DataChannel; | |
| 41 class StatsReport; | |
| 42 class VideoChannel; | |
| 43 class VoiceChannel; | |
| 44 | |
| 45 #ifdef HAVE_QUIC | |
| 46 class QuicTransportChannel; | |
| 47 #endif // HAVE_QUIC | |
| 48 | |
| 49 } // namespace cricket | |
| 50 | |
| 51 namespace webrtc { | |
| 52 | |
| 53 class IceRestartAnswerLatch; | |
| 54 class JsepIceCandidate; | |
| 55 class MediaStreamSignaling; | |
| 56 class WebRtcSessionDescriptionFactory; | |
| 57 | |
| 58 extern const char kBundleWithoutRtcpMux[]; | |
| 59 extern const char kCreateChannelFailed[]; | |
| 60 extern const char kInvalidCandidates[]; | |
| 61 extern const char kInvalidSdp[]; | |
| 62 extern const char kMlineMismatch[]; | |
| 63 extern const char kPushDownTDFailed[]; | |
| 64 extern const char kSdpWithoutDtlsFingerprint[]; | |
| 65 extern const char kSdpWithoutSdesCrypto[]; | |
| 66 extern const char kSdpWithoutIceUfragPwd[]; | |
| 67 extern const char kSdpWithoutSdesAndDtlsDisabled[]; | |
| 68 extern const char kSessionError[]; | |
| 69 extern const char kSessionErrorDesc[]; | |
| 70 extern const char kDtlsSetupFailureRtp[]; | |
| 71 extern const char kDtlsSetupFailureRtcp[]; | |
| 72 extern const char kEnableBundleFailed[]; | |
| 73 | |
| 74 // Maximum number of received video streams that will be processed by webrtc | |
| 75 // even if they are not signalled beforehand. | |
| 76 extern const int kMaxUnsignalledRecvStreams; | |
| 77 | |
| 78 // ICE state callback interface. | |
| 79 class IceObserver { | |
| 80 public: | |
| 81 IceObserver() {} | |
| 82 // Called any time the IceConnectionState changes | |
| 83 // TODO(honghaiz): Change the name to OnIceConnectionStateChange so as to | |
| 84 // conform to the w3c standard. | |
| 85 virtual void OnIceConnectionChange( | |
| 86 PeerConnectionInterface::IceConnectionState new_state) {} | |
| 87 // Called any time the IceGatheringState changes | |
| 88 virtual void OnIceGatheringChange( | |
| 89 PeerConnectionInterface::IceGatheringState new_state) {} | |
| 90 // New Ice candidate have been found. | |
| 91 virtual void OnIceCandidate(const IceCandidateInterface* candidate) = 0; | |
| 92 | |
| 93 // Some local ICE candidates have been removed. | |
| 94 virtual void OnIceCandidatesRemoved( | |
| 95 const std::vector<cricket::Candidate>& candidates) = 0; | |
| 96 | |
| 97 // Called whenever the state changes between receiving and not receiving. | |
| 98 virtual void OnIceConnectionReceivingChange(bool receiving) {} | |
| 99 | |
| 100 protected: | |
| 101 ~IceObserver() {} | |
| 102 | |
| 103 private: | |
| 104 RTC_DISALLOW_COPY_AND_ASSIGN(IceObserver); | |
| 105 }; | |
| 106 | |
| 107 // Statistics for all the transports of the session. | |
| 108 typedef std::map<std::string, cricket::TransportStats> TransportStatsMap; | |
| 109 typedef std::map<std::string, std::string> ProxyTransportMap; | |
| 110 | |
| 111 // TODO(pthatcher): Think of a better name for this. We already have | |
| 112 // a TransportStats in transport.h. Perhaps TransportsStats? | |
| 113 struct SessionStats { | |
| 114 ProxyTransportMap proxy_to_transport; | |
| 115 TransportStatsMap transport_stats; | |
| 116 }; | |
| 117 | |
| 118 // A WebRtcSession manages general session state. This includes negotiation | |
| 119 // of both the application-level and network-level protocols: the former | |
| 120 // defines what will be sent and the latter defines how it will be sent. Each | |
| 121 // network-level protocol is represented by a Transport object. Each Transport | |
| 122 // participates in the network-level negotiation. The individual streams of | |
| 123 // packets are represented by TransportChannels. The application-level protocol | |
| 124 // is represented by SessionDecription objects. | |
| 125 class WebRtcSession : | |
| 126 | |
| 127 public DtmfProviderInterface, | |
| 128 public DataChannelProviderInterface, | |
| 129 public sigslot::has_slots<> { | |
| 130 public: | |
| 131 enum State { | |
| 132 STATE_INIT = 0, | |
| 133 STATE_SENTOFFER, // Sent offer, waiting for answer. | |
| 134 STATE_RECEIVEDOFFER, // Received an offer. Need to send answer. | |
| 135 STATE_SENTPRANSWER, // Sent provisional answer. Need to send answer. | |
| 136 STATE_RECEIVEDPRANSWER, // Received provisional answer, waiting for answer. | |
| 137 STATE_INPROGRESS, // Offer/answer exchange completed. | |
| 138 STATE_CLOSED, // Close() was called. | |
| 139 }; | |
| 140 | |
| 141 enum Error { | |
| 142 ERROR_NONE = 0, // no error | |
| 143 ERROR_CONTENT = 1, // channel errors in SetLocalContent/SetRemoteContent | |
| 144 ERROR_TRANSPORT = 2, // transport error of some kind | |
| 145 }; | |
| 146 | |
| 147 WebRtcSession( | |
| 148 webrtc::MediaControllerInterface* media_controller, | |
| 149 rtc::Thread* network_thread, | |
| 150 rtc::Thread* worker_thread, | |
| 151 rtc::Thread* signaling_thread, | |
| 152 cricket::PortAllocator* port_allocator, | |
| 153 std::unique_ptr<cricket::TransportController> transport_controller); | |
| 154 virtual ~WebRtcSession(); | |
| 155 | |
| 156 // These are const to allow them to be called from const methods. | |
| 157 rtc::Thread* network_thread() const { return network_thread_; } | |
| 158 rtc::Thread* worker_thread() const { return worker_thread_; } | |
| 159 rtc::Thread* signaling_thread() const { return signaling_thread_; } | |
| 160 | |
| 161 // The ID of this session. | |
| 162 const std::string& id() const { return sid_; } | |
| 163 | |
| 164 bool Initialize( | |
| 165 const PeerConnectionFactoryInterface::Options& options, | |
| 166 std::unique_ptr<rtc::RTCCertificateGeneratorInterface> cert_generator, | |
| 167 const PeerConnectionInterface::RTCConfiguration& rtc_configuration); | |
| 168 // Deletes the voice, video and data channel and changes the session state | |
| 169 // to STATE_CLOSED. | |
| 170 void Close(); | |
| 171 | |
| 172 // Returns true if we were the initial offerer. | |
| 173 bool initial_offerer() const { return initial_offerer_; } | |
| 174 | |
| 175 // Returns the current state of the session. See the enum above for details. | |
| 176 // Each time the state changes, we will fire this signal. | |
| 177 State state() const { return state_; } | |
| 178 sigslot::signal2<WebRtcSession*, State> SignalState; | |
| 179 | |
| 180 // Returns the last error in the session. See the enum above for details. | |
| 181 Error error() const { return error_; } | |
| 182 const std::string& error_desc() const { return error_desc_; } | |
| 183 | |
| 184 void RegisterIceObserver(IceObserver* observer) { | |
| 185 ice_observer_ = observer; | |
| 186 } | |
| 187 | |
| 188 virtual cricket::VoiceChannel* voice_channel() { | |
| 189 return voice_channel_.get(); | |
| 190 } | |
| 191 virtual cricket::VideoChannel* video_channel() { | |
| 192 return video_channel_.get(); | |
| 193 } | |
| 194 virtual cricket::DataChannel* data_channel() { | |
| 195 return data_channel_.get(); | |
| 196 } | |
| 197 | |
| 198 cricket::BaseChannel* GetChannel(const std::string& content_name); | |
| 199 | |
| 200 cricket::SecurePolicy SdesPolicy() const; | |
| 201 | |
| 202 // Get current ssl role from transport. | |
| 203 bool GetSslRole(const std::string& transport_name, rtc::SSLRole* role); | |
| 204 | |
| 205 // Get current SSL role for this channel's transport. | |
| 206 // If |transport| is null, returns false. | |
| 207 bool GetSslRole(const cricket::BaseChannel* channel, rtc::SSLRole* role); | |
| 208 | |
| 209 void CreateOffer( | |
| 210 CreateSessionDescriptionObserver* observer, | |
| 211 const PeerConnectionInterface::RTCOfferAnswerOptions& options, | |
| 212 const cricket::MediaSessionOptions& session_options); | |
| 213 void CreateAnswer(CreateSessionDescriptionObserver* observer, | |
| 214 const cricket::MediaSessionOptions& session_options); | |
| 215 // The ownership of |desc| will be transferred after this call. | |
| 216 bool SetLocalDescription(SessionDescriptionInterface* desc, | |
| 217 std::string* err_desc); | |
| 218 // The ownership of |desc| will be transferred after this call. | |
| 219 bool SetRemoteDescription(SessionDescriptionInterface* desc, | |
| 220 std::string* err_desc); | |
| 221 bool ProcessIceMessage(const IceCandidateInterface* ice_candidate); | |
| 222 | |
| 223 bool RemoveRemoteIceCandidates( | |
| 224 const std::vector<cricket::Candidate>& candidates); | |
| 225 | |
| 226 cricket::IceConfig ParseIceConfig( | |
| 227 const PeerConnectionInterface::RTCConfiguration& config) const; | |
| 228 | |
| 229 void SetIceConfig(const cricket::IceConfig& ice_config); | |
| 230 | |
| 231 // Start gathering candidates for any new transports, or transports doing an | |
| 232 // ICE restart. | |
| 233 void MaybeStartGathering(); | |
| 234 | |
| 235 const SessionDescriptionInterface* local_description() const { | |
| 236 return local_desc_.get(); | |
| 237 } | |
| 238 const SessionDescriptionInterface* remote_description() const { | |
| 239 return remote_desc_.get(); | |
| 240 } | |
| 241 | |
| 242 // Get the id used as a media stream track's "id" field from ssrc. | |
| 243 virtual bool GetLocalTrackIdBySsrc(uint32_t ssrc, std::string* track_id); | |
| 244 virtual bool GetRemoteTrackIdBySsrc(uint32_t ssrc, std::string* track_id); | |
| 245 | |
| 246 // Implements DtmfProviderInterface. | |
| 247 bool CanInsertDtmf(const std::string& track_id) override; | |
| 248 bool InsertDtmf(const std::string& track_id, | |
| 249 int code, int duration) override; | |
| 250 sigslot::signal0<>* GetOnDestroyedSignal() override; | |
| 251 | |
| 252 // Implements DataChannelProviderInterface. | |
| 253 bool SendData(const cricket::SendDataParams& params, | |
| 254 const rtc::CopyOnWriteBuffer& payload, | |
| 255 cricket::SendDataResult* result) override; | |
| 256 bool ConnectDataChannel(DataChannel* webrtc_data_channel) override; | |
| 257 void DisconnectDataChannel(DataChannel* webrtc_data_channel) override; | |
| 258 void AddSctpDataStream(int sid) override; | |
| 259 void RemoveSctpDataStream(int sid) override; | |
| 260 bool ReadyToSendData() const override; | |
| 261 | |
| 262 // Returns stats for all channels of all transports. | |
| 263 // This avoids exposing the internal structures used to track them. | |
| 264 virtual bool GetTransportStats(SessionStats* stats); | |
| 265 | |
| 266 // Get stats for a specific channel | |
| 267 bool GetChannelTransportStats(cricket::BaseChannel* ch, SessionStats* stats); | |
| 268 | |
| 269 // virtual so it can be mocked in unit tests | |
| 270 virtual bool GetLocalCertificate( | |
| 271 const std::string& transport_name, | |
| 272 rtc::scoped_refptr<rtc::RTCCertificate>* certificate); | |
| 273 | |
| 274 // Caller owns returned certificate | |
| 275 virtual std::unique_ptr<rtc::SSLCertificate> GetRemoteSSLCertificate( | |
| 276 const std::string& transport_name); | |
| 277 | |
| 278 cricket::DataChannelType data_channel_type() const; | |
| 279 | |
| 280 // Returns true if there was an ICE restart initiated by the remote offer. | |
| 281 bool IceRestartPending(const std::string& content_name) const; | |
| 282 | |
| 283 // Set the "needs-ice-restart" flag as described in JSEP. After the flag is | |
| 284 // set, offers should generate new ufrags/passwords until an ICE restart | |
| 285 // occurs. | |
| 286 void SetNeedsIceRestartFlag(); | |
| 287 // Returns true if the ICE restart flag above was set, and no ICE restart has | |
| 288 // occurred yet for this transport (by applying a local description with | |
| 289 // changed ufrag/password). If the transport has been deleted as a result of | |
| 290 // bundling, returns false. | |
| 291 bool NeedsIceRestart(const std::string& content_name) const; | |
| 292 | |
| 293 // Called when an RTCCertificate is generated or retrieved by | |
| 294 // WebRTCSessionDescriptionFactory. Should happen before setLocalDescription. | |
| 295 void OnCertificateReady( | |
| 296 const rtc::scoped_refptr<rtc::RTCCertificate>& certificate); | |
| 297 void OnDtlsSetupFailure(cricket::BaseChannel*, bool rtcp); | |
| 298 | |
| 299 // For unit test. | |
| 300 bool waiting_for_certificate_for_testing() const; | |
| 301 const rtc::scoped_refptr<rtc::RTCCertificate>& certificate_for_testing(); | |
| 302 | |
| 303 void set_metrics_observer( | |
| 304 webrtc::MetricsObserverInterface* metrics_observer) { | |
| 305 metrics_observer_ = metrics_observer; | |
| 306 transport_controller_->SetMetricsObserver(metrics_observer); | |
| 307 } | |
| 308 | |
| 309 // Called when voice_channel_, video_channel_ and data_channel_ are created | |
| 310 // and destroyed. As a result of, for example, setting a new description. | |
| 311 sigslot::signal0<> SignalVoiceChannelCreated; | |
| 312 sigslot::signal0<> SignalVoiceChannelDestroyed; | |
| 313 sigslot::signal0<> SignalVideoChannelCreated; | |
| 314 sigslot::signal0<> SignalVideoChannelDestroyed; | |
| 315 sigslot::signal0<> SignalDataChannelCreated; | |
| 316 sigslot::signal0<> SignalDataChannelDestroyed; | |
| 317 // Called when the whole session is destroyed. | |
| 318 sigslot::signal0<> SignalDestroyed; | |
| 319 | |
| 320 // Called when a valid data channel OPEN message is received. | |
| 321 // std::string represents the data channel label. | |
| 322 sigslot::signal2<const std::string&, const InternalDataChannelInit&> | |
| 323 SignalDataChannelOpenMessage; | |
| 324 #ifdef HAVE_QUIC | |
| 325 QuicDataTransport* quic_data_transport() { | |
| 326 return quic_data_transport_.get(); | |
| 327 } | |
| 328 #endif // HAVE_QUIC | |
| 329 | |
| 330 private: | |
| 331 // Indicates the type of SessionDescription in a call to SetLocalDescription | |
| 332 // and SetRemoteDescription. | |
| 333 enum Action { | |
| 334 kOffer, | |
| 335 kPrAnswer, | |
| 336 kAnswer, | |
| 337 }; | |
| 338 | |
| 339 // Log session state. | |
| 340 void LogState(State old_state, State new_state); | |
| 341 | |
| 342 // Updates the state, signaling if necessary. | |
| 343 virtual void SetState(State state); | |
| 344 | |
| 345 // Updates the error state, signaling if necessary. | |
| 346 // TODO(ronghuawu): remove the SetError method that doesn't take |error_desc|. | |
| 347 virtual void SetError(Error error, const std::string& error_desc); | |
| 348 | |
| 349 bool UpdateSessionState(Action action, cricket::ContentSource source, | |
| 350 std::string* err_desc); | |
| 351 static Action GetAction(const std::string& type); | |
| 352 // Push the media parts of the local or remote session description | |
| 353 // down to all of the channels. | |
| 354 bool PushdownMediaDescription(cricket::ContentAction action, | |
| 355 cricket::ContentSource source, | |
| 356 std::string* error_desc); | |
| 357 | |
| 358 bool PushdownTransportDescription(cricket::ContentSource source, | |
| 359 cricket::ContentAction action, | |
| 360 std::string* error_desc); | |
| 361 | |
| 362 // Helper methods to push local and remote transport descriptions. | |
| 363 bool PushdownLocalTransportDescription( | |
| 364 const cricket::SessionDescription* sdesc, | |
| 365 cricket::ContentAction action, | |
| 366 std::string* error_desc); | |
| 367 bool PushdownRemoteTransportDescription( | |
| 368 const cricket::SessionDescription* sdesc, | |
| 369 cricket::ContentAction action, | |
| 370 std::string* error_desc); | |
| 371 | |
| 372 // Returns true and the TransportInfo of the given |content_name| | |
| 373 // from |description|. Returns false if it's not available. | |
| 374 static bool GetTransportDescription( | |
| 375 const cricket::SessionDescription* description, | |
| 376 const std::string& content_name, | |
| 377 cricket::TransportDescription* info); | |
| 378 | |
| 379 // Returns the name of the transport channel when BUNDLE is enabled, or | |
| 380 // nullptr if the channel is not part of any bundle. | |
| 381 const std::string* GetBundleTransportName( | |
| 382 const cricket::ContentInfo* content, | |
| 383 const cricket::ContentGroup* bundle); | |
| 384 | |
| 385 // Cause all the BaseChannels in the bundle group to have the same | |
| 386 // transport channel. | |
| 387 bool EnableBundle(const cricket::ContentGroup& bundle); | |
| 388 | |
| 389 // Enables media channels to allow sending of media. | |
| 390 void EnableChannels(); | |
| 391 // Returns the media index for a local ice candidate given the content name. | |
| 392 // Returns false if the local session description does not have a media | |
| 393 // content called |content_name|. | |
| 394 bool GetLocalCandidateMediaIndex(const std::string& content_name, | |
| 395 int* sdp_mline_index); | |
| 396 // Uses all remote candidates in |remote_desc| in this session. | |
| 397 bool UseCandidatesInSessionDescription( | |
| 398 const SessionDescriptionInterface* remote_desc); | |
| 399 // Uses |candidate| in this session. | |
| 400 bool UseCandidate(const IceCandidateInterface* candidate); | |
| 401 // Deletes the corresponding channel of contents that don't exist in |desc|. | |
| 402 // |desc| can be null. This means that all channels are deleted. | |
| 403 void RemoveUnusedChannels(const cricket::SessionDescription* desc); | |
| 404 | |
| 405 // Allocates media channels based on the |desc|. If |desc| doesn't have | |
| 406 // the BUNDLE option, this method will disable BUNDLE in PortAllocator. | |
| 407 // This method will also delete any existing media channels before creating. | |
| 408 bool CreateChannels(const cricket::SessionDescription* desc); | |
| 409 | |
| 410 // Helper methods to create media channels. | |
| 411 bool CreateVoiceChannel(const cricket::ContentInfo* content, | |
| 412 const std::string* bundle_transport); | |
| 413 bool CreateVideoChannel(const cricket::ContentInfo* content, | |
| 414 const std::string* bundle_transport); | |
| 415 bool CreateDataChannel(const cricket::ContentInfo* content, | |
| 416 const std::string* bundle_transport); | |
| 417 | |
| 418 // Listens to SCTP CONTROL messages on unused SIDs and process them as OPEN | |
| 419 // messages. | |
| 420 void OnDataChannelMessageReceived(cricket::DataChannel* channel, | |
| 421 const cricket::ReceiveDataParams& params, | |
| 422 const rtc::CopyOnWriteBuffer& payload); | |
| 423 | |
| 424 std::string BadStateErrMsg(State state); | |
| 425 void SetIceConnectionState(PeerConnectionInterface::IceConnectionState state); | |
| 426 void SetIceConnectionReceiving(bool receiving); | |
| 427 | |
| 428 bool ValidateBundleSettings(const cricket::SessionDescription* desc); | |
| 429 bool HasRtcpMuxEnabled(const cricket::ContentInfo* content); | |
| 430 // Below methods are helper methods which verifies SDP. | |
| 431 bool ValidateSessionDescription(const SessionDescriptionInterface* sdesc, | |
| 432 cricket::ContentSource source, | |
| 433 std::string* err_desc); | |
| 434 | |
| 435 // Check if a call to SetLocalDescription is acceptable with |action|. | |
| 436 bool ExpectSetLocalDescription(Action action); | |
| 437 // Check if a call to SetRemoteDescription is acceptable with |action|. | |
| 438 bool ExpectSetRemoteDescription(Action action); | |
| 439 // Verifies a=setup attribute as per RFC 5763. | |
| 440 bool ValidateDtlsSetupAttribute(const cricket::SessionDescription* desc, | |
| 441 Action action); | |
| 442 | |
| 443 // Returns true if we are ready to push down the remote candidate. | |
| 444 // |remote_desc| is the new remote description, or NULL if the current remote | |
| 445 // description should be used. Output |valid| is true if the candidate media | |
| 446 // index is valid. | |
| 447 bool ReadyToUseRemoteCandidate(const IceCandidateInterface* candidate, | |
| 448 const SessionDescriptionInterface* remote_desc, | |
| 449 bool* valid); | |
| 450 | |
| 451 // Returns true if SRTP (either using DTLS-SRTP or SDES) is required by | |
| 452 // this session. | |
| 453 bool SrtpRequired() const; | |
| 454 | |
| 455 void OnTransportControllerConnectionState(cricket::IceConnectionState state); | |
| 456 void OnTransportControllerReceiving(bool receiving); | |
| 457 void OnTransportControllerGatheringState(cricket::IceGatheringState state); | |
| 458 void OnTransportControllerCandidatesGathered( | |
| 459 const std::string& transport_name, | |
| 460 const std::vector<cricket::Candidate>& candidates); | |
| 461 void OnTransportControllerCandidatesRemoved( | |
| 462 const std::vector<cricket::Candidate>& candidates); | |
| 463 | |
| 464 std::string GetSessionErrorMsg(); | |
| 465 | |
| 466 // Invoked when TransportController connection completion is signaled. | |
| 467 // Reports stats for all transports in use. | |
| 468 void ReportTransportStats(); | |
| 469 | |
| 470 // Gather the usage of IPv4/IPv6 as best connection. | |
| 471 void ReportBestConnectionState(const cricket::TransportStats& stats); | |
| 472 | |
| 473 void ReportNegotiatedCiphers(const cricket::TransportStats& stats); | |
| 474 | |
| 475 void OnSentPacket_w(const rtc::SentPacket& sent_packet); | |
| 476 | |
| 477 const std::string GetTransportName(const std::string& content_name); | |
| 478 | |
| 479 void OnDtlsHandshakeError(rtc::SSLHandshakeError error); | |
| 480 | |
| 481 rtc::Thread* const network_thread_; | |
| 482 rtc::Thread* const worker_thread_; | |
| 483 rtc::Thread* const signaling_thread_; | |
| 484 | |
| 485 State state_ = STATE_INIT; | |
| 486 Error error_ = ERROR_NONE; | |
| 487 std::string error_desc_; | |
| 488 | |
| 489 const std::string sid_; | |
| 490 bool initial_offerer_ = false; | |
| 491 | |
| 492 std::unique_ptr<cricket::TransportController> transport_controller_; | |
| 493 MediaControllerInterface* media_controller_; | |
| 494 std::unique_ptr<cricket::VoiceChannel> voice_channel_; | |
| 495 std::unique_ptr<cricket::VideoChannel> video_channel_; | |
| 496 std::unique_ptr<cricket::DataChannel> data_channel_; | |
| 497 cricket::ChannelManager* channel_manager_; | |
| 498 IceObserver* ice_observer_; | |
| 499 PeerConnectionInterface::IceConnectionState ice_connection_state_; | |
| 500 bool ice_connection_receiving_; | |
| 501 std::unique_ptr<SessionDescriptionInterface> local_desc_; | |
| 502 std::unique_ptr<SessionDescriptionInterface> remote_desc_; | |
| 503 // If the remote peer is using a older version of implementation. | |
| 504 bool older_version_remote_peer_; | |
| 505 bool dtls_enabled_; | |
| 506 // Specifies which kind of data channel is allowed. This is controlled | |
| 507 // by the chrome command-line flag and constraints: | |
| 508 // 1. If chrome command-line switch 'enable-sctp-data-channels' is enabled, | |
| 509 // constraint kEnableDtlsSrtp is true, and constaint kEnableRtpDataChannels is | |
| 510 // not set or false, SCTP is allowed (DCT_SCTP); | |
| 511 // 2. If constraint kEnableRtpDataChannels is true, RTP is allowed (DCT_RTP); | |
| 512 // 3. If both 1&2 are false, data channel is not allowed (DCT_NONE). | |
| 513 // The data channel type could be DCT_QUIC if the QUIC data channel is | |
| 514 // enabled. | |
| 515 cricket::DataChannelType data_channel_type_; | |
| 516 // List of content names for which the remote side triggered an ICE restart. | |
| 517 std::set<std::string> pending_ice_restarts_; | |
| 518 | |
| 519 std::unique_ptr<WebRtcSessionDescriptionFactory> webrtc_session_desc_factory_; | |
| 520 | |
| 521 // Member variables for caching global options. | |
| 522 cricket::AudioOptions audio_options_; | |
| 523 cricket::VideoOptions video_options_; | |
| 524 MetricsObserverInterface* metrics_observer_; | |
| 525 | |
| 526 // Declares the bundle policy for the WebRTCSession. | |
| 527 PeerConnectionInterface::BundlePolicy bundle_policy_; | |
| 528 | |
| 529 // Declares the RTCP mux policy for the WebRTCSession. | |
| 530 PeerConnectionInterface::RtcpMuxPolicy rtcp_mux_policy_; | |
| 531 | |
| 532 bool received_first_video_packet_ = false; | |
| 533 bool received_first_audio_packet_ = false; | |
| 534 | |
| 535 #ifdef HAVE_QUIC | |
| 536 std::unique_ptr<QuicDataTransport> quic_data_transport_; | |
| 537 #endif // HAVE_QUIC | |
| 538 | |
| 539 RTC_DISALLOW_COPY_AND_ASSIGN(WebRtcSession); | |
| 540 }; | |
| 541 } // namespace webrtc | |
| 542 | |
| 543 #endif // WEBRTC_API_WEBRTCSESSION_H_ | |
| OLD | NEW |
|---|
Chromium Code Reviews
Issue 2514883002:
Create //webrtc/api:libjingle_peerconnection_api + refactorings. (Closed)
