henrike@webrtc.org | 28e2075 | 2013-07-10 00:45:36 +0000 | [diff] [blame] | 1 | /* |
kjellander | b24317b | 2016-02-10 07:54:43 -0800 | [diff] [blame] | 2 | * Copyright 2012 The WebRTC project authors. All Rights Reserved. |
henrike@webrtc.org | 28e2075 | 2013-07-10 00:45:36 +0000 | [diff] [blame] | 3 | * |
kjellander | b24317b | 2016-02-10 07:54:43 -0800 | [diff] [blame] | 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. |
henrike@webrtc.org | 28e2075 | 2013-07-10 00:45:36 +0000 | [diff] [blame] | 9 | */ |
| 10 | |
Steve Anton | 10542f2 | 2019-01-11 09:11:00 -0800 | [diff] [blame] | 11 | #ifndef PC_PEER_CONNECTION_H_ |
| 12 | #define PC_PEER_CONNECTION_H_ |
henrike@webrtc.org | 28e2075 | 2013-07-10 00:45:36 +0000 | [diff] [blame] | 13 | |
perkj | d61bf80 | 2016-03-24 03:16:19 -0700 | [diff] [blame] | 14 | #include <map> |
kwiberg | d1fe281 | 2016-04-27 06:47:29 -0700 | [diff] [blame] | 15 | #include <memory> |
Steve Anton | 75737c0 | 2017-11-06 10:37:17 -0800 | [diff] [blame] | 16 | #include <set> |
| 17 | #include <string> |
perkj | d61bf80 | 2016-03-24 03:16:19 -0700 | [diff] [blame] | 18 | #include <vector> |
henrike@webrtc.org | 28e2075 | 2013-07-10 00:45:36 +0000 | [diff] [blame] | 19 | |
Piotr (Peter) Slatala | e0c2e97 | 2018-10-08 09:43:21 -0700 | [diff] [blame] | 20 | #include "api/media_transport_interface.h" |
Steve Anton | 10542f2 | 2019-01-11 09:11:00 -0800 | [diff] [blame] | 21 | #include "api/peer_connection_interface.h" |
| 22 | #include "api/turn_customizer.h" |
| 23 | #include "pc/ice_server_parsing.h" |
| 24 | #include "pc/jsep_transport_controller.h" |
| 25 | #include "pc/peer_connection_factory.h" |
| 26 | #include "pc/peer_connection_internal.h" |
| 27 | #include "pc/rtc_stats_collector.h" |
| 28 | #include "pc/rtp_transceiver.h" |
| 29 | #include "pc/stats_collector.h" |
| 30 | #include "pc/stream_collection.h" |
Steve Anton | 10542f2 | 2019-01-11 09:11:00 -0800 | [diff] [blame] | 31 | #include "pc/webrtc_session_description_factory.h" |
Amit Hilbuch | dbb49df | 2019-01-23 14:54:24 -0800 | [diff] [blame] | 32 | #include "rtc_base/unique_id_generator.h" |
henrike@webrtc.org | 28e2075 | 2013-07-10 00:45:36 +0000 | [diff] [blame] | 33 | |
| 34 | namespace webrtc { |
henrike@webrtc.org | 28e2075 | 2013-07-10 00:45:36 +0000 | [diff] [blame] | 35 | |
deadbeef | eb45981 | 2015-12-15 19:24:43 -0800 | [diff] [blame] | 36 | class MediaStreamObserver; |
perkj | f0dcfe2 | 2016-03-10 18:32:00 +0100 | [diff] [blame] | 37 | class VideoRtpReceiver; |
skvlad | 11a9cbf | 2016-10-07 11:53:05 -0700 | [diff] [blame] | 38 | class RtcEventLog; |
deadbeef | ab9b2d1 | 2015-10-14 11:33:11 -0700 | [diff] [blame] | 39 | |
Steve Anton | 75737c0 | 2017-11-06 10:37:17 -0800 | [diff] [blame] | 40 | // PeerConnection is the implementation of the PeerConnection object as defined |
| 41 | // by the PeerConnectionInterface API surface. |
| 42 | // The class currently is solely responsible for the following: |
| 43 | // - Managing the session state machine (signaling state). |
| 44 | // - Creating and initializing lower-level objects, like PortAllocator and |
| 45 | // BaseChannels. |
| 46 | // - Owning and managing the life cycle of the RtpSender/RtpReceiver and track |
| 47 | // objects. |
| 48 | // - Tracking the current and pending local/remote session descriptions. |
| 49 | // The class currently is jointly responsible for the following: |
| 50 | // - Parsing and interpreting SDP. |
| 51 | // - Generating offers and answers based on the current state. |
| 52 | // - The ICE state machine. |
| 53 | // - Generating stats. |
Steve Anton | 2d8609c | 2018-01-23 16:38:46 -0800 | [diff] [blame] | 54 | class PeerConnection : public PeerConnectionInternal, |
Steve Anton | 75737c0 | 2017-11-06 10:37:17 -0800 | [diff] [blame] | 55 | public DataChannelProviderInterface, |
Bjorn Mellem | 175aa2e | 2018-11-08 11:23:22 -0800 | [diff] [blame] | 56 | public DataChannelSink, |
Zhi Huang | 365381f | 2018-04-13 16:44:34 -0700 | [diff] [blame] | 57 | public JsepTransportController::Observer, |
Steve Anton | ad18276 | 2018-09-05 20:22:40 +0000 | [diff] [blame] | 58 | public rtc::MessageHandler, |
henrike@webrtc.org | 28e2075 | 2013-07-10 00:45:36 +0000 | [diff] [blame] | 59 | public sigslot::has_slots<> { |
| 60 | public: |
Harald Alvestrand | 8ebba74 | 2018-05-31 14:00:34 +0200 | [diff] [blame] | 61 | enum class UsageEvent : int { |
| 62 | TURN_SERVER_ADDED = 0x01, |
| 63 | STUN_SERVER_ADDED = 0x02, |
| 64 | DATA_ADDED = 0x04, |
| 65 | AUDIO_ADDED = 0x08, |
| 66 | VIDEO_ADDED = 0x10, |
| 67 | SET_LOCAL_DESCRIPTION_CALLED = 0x20, |
| 68 | SET_REMOTE_DESCRIPTION_CALLED = 0x40, |
| 69 | CANDIDATE_COLLECTED = 0x80, |
| 70 | REMOTE_CANDIDATE_ADDED = 0x100, |
| 71 | ICE_STATE_CONNECTED = 0x200, |
Qingsi Wang | 7fc821d | 2018-07-12 12:54:53 -0700 | [diff] [blame] | 72 | CLOSE_CALLED = 0x400, |
Harald Alvestrand | 056d811 | 2018-07-16 19:18:58 +0200 | [diff] [blame] | 73 | PRIVATE_CANDIDATE_COLLECTED = 0x800, |
| 74 | MAX_VALUE = 0x1000, |
Harald Alvestrand | 8ebba74 | 2018-05-31 14:00:34 +0200 | [diff] [blame] | 75 | }; |
| 76 | |
zhihuang | 38ede13 | 2017-06-15 12:52:32 -0700 | [diff] [blame] | 77 | explicit PeerConnection(PeerConnectionFactory* factory, |
| 78 | std::unique_ptr<RtcEventLog> event_log, |
| 79 | std::unique_ptr<Call> call); |
henrike@webrtc.org | 28e2075 | 2013-07-10 00:45:36 +0000 | [diff] [blame] | 80 | |
deadbeef | 653b8e0 | 2015-11-11 12:55:10 -0800 | [diff] [blame] | 81 | bool Initialize( |
| 82 | const PeerConnectionInterface::RTCConfiguration& configuration, |
Benjamin Wright | cab5888 | 2018-05-02 15:12:47 -0700 | [diff] [blame] | 83 | PeerConnectionDependencies dependencies); |
deadbeef | 653b8e0 | 2015-11-11 12:55:10 -0800 | [diff] [blame] | 84 | |
deadbeef | a67696b | 2015-09-29 11:56:26 -0700 | [diff] [blame] | 85 | rtc::scoped_refptr<StreamCollectionInterface> local_streams() override; |
| 86 | rtc::scoped_refptr<StreamCollectionInterface> remote_streams() override; |
| 87 | bool AddStream(MediaStreamInterface* local_stream) override; |
| 88 | void RemoveStream(MediaStreamInterface* local_stream) override; |
henrike@webrtc.org | 28e2075 | 2013-07-10 00:45:36 +0000 | [diff] [blame] | 89 | |
Steve Anton | 2d6c76a | 2018-01-05 17:10:52 -0800 | [diff] [blame] | 90 | RTCErrorOr<rtc::scoped_refptr<RtpSenderInterface>> AddTrack( |
Steve Anton | f9381f0 | 2017-12-14 10:23:57 -0800 | [diff] [blame] | 91 | rtc::scoped_refptr<MediaStreamTrackInterface> track, |
Seth Hampson | 845e878 | 2018-03-02 11:34:10 -0800 | [diff] [blame] | 92 | const std::vector<std::string>& stream_ids) override; |
deadbeef | e1f9d83 | 2016-01-14 15:35:42 -0800 | [diff] [blame] | 93 | bool RemoveTrack(RtpSenderInterface* sender) override; |
Steve Anton | 24db573 | 2018-07-23 10:27:33 -0700 | [diff] [blame] | 94 | RTCError RemoveTrackNew( |
| 95 | rtc::scoped_refptr<RtpSenderInterface> sender) override; |
deadbeef | e1f9d83 | 2016-01-14 15:35:42 -0800 | [diff] [blame] | 96 | |
Steve Anton | 9158ef6 | 2017-11-27 13:01:52 -0800 | [diff] [blame] | 97 | RTCErrorOr<rtc::scoped_refptr<RtpTransceiverInterface>> AddTransceiver( |
| 98 | rtc::scoped_refptr<MediaStreamTrackInterface> track) override; |
| 99 | RTCErrorOr<rtc::scoped_refptr<RtpTransceiverInterface>> AddTransceiver( |
| 100 | rtc::scoped_refptr<MediaStreamTrackInterface> track, |
| 101 | const RtpTransceiverInit& init) override; |
| 102 | RTCErrorOr<rtc::scoped_refptr<RtpTransceiverInterface>> AddTransceiver( |
| 103 | cricket::MediaType media_type) override; |
| 104 | RTCErrorOr<rtc::scoped_refptr<RtpTransceiverInterface>> AddTransceiver( |
| 105 | cricket::MediaType media_type, |
| 106 | const RtpTransceiverInit& init) override; |
| 107 | |
Steve Anton | 8c0f7a7 | 2017-10-03 10:03:10 -0700 | [diff] [blame] | 108 | // Gets the DTLS SSL certificate associated with the audio transport on the |
| 109 | // remote side. This will become populated once the DTLS connection with the |
| 110 | // peer has been completed, as indicated by the ICE connection state |
| 111 | // transitioning to kIceConnectionCompleted. |
| 112 | // Note that this will be removed once we implement RTCDtlsTransport which |
| 113 | // has standardized method for getting this information. |
| 114 | // See https://www.w3.org/TR/webrtc/#rtcdtlstransport-interface |
| 115 | std::unique_ptr<rtc::SSLCertificate> GetRemoteAudioSSLCertificate(); |
| 116 | |
Zhi Huang | 70b820f | 2018-01-27 14:16:15 -0800 | [diff] [blame] | 117 | // Version of the above method that returns the full certificate chain. |
| 118 | std::unique_ptr<rtc::SSLCertChain> GetRemoteAudioSSLCertChain(); |
| 119 | |
deadbeef | fac0655 | 2015-11-25 11:26:01 -0800 | [diff] [blame] | 120 | rtc::scoped_refptr<RtpSenderInterface> CreateSender( |
deadbeef | bd7d8f7 | 2015-12-18 16:58:44 -0800 | [diff] [blame] | 121 | const std::string& kind, |
| 122 | const std::string& stream_id) override; |
deadbeef | fac0655 | 2015-11-25 11:26:01 -0800 | [diff] [blame] | 123 | |
deadbeef | 70ab1a1 | 2015-09-28 16:53:55 -0700 | [diff] [blame] | 124 | std::vector<rtc::scoped_refptr<RtpSenderInterface>> GetSenders() |
| 125 | const override; |
| 126 | std::vector<rtc::scoped_refptr<RtpReceiverInterface>> GetReceivers() |
| 127 | const override; |
Steve Anton | 9158ef6 | 2017-11-27 13:01:52 -0800 | [diff] [blame] | 128 | std::vector<rtc::scoped_refptr<RtpTransceiverInterface>> GetTransceivers() |
| 129 | const override; |
deadbeef | 70ab1a1 | 2015-09-28 16:53:55 -0700 | [diff] [blame] | 130 | |
deadbeef | a67696b | 2015-09-29 11:56:26 -0700 | [diff] [blame] | 131 | rtc::scoped_refptr<DataChannelInterface> CreateDataChannel( |
henrike@webrtc.org | 28e2075 | 2013-07-10 00:45:36 +0000 | [diff] [blame] | 132 | const std::string& label, |
deadbeef | a67696b | 2015-09-29 11:56:26 -0700 | [diff] [blame] | 133 | const DataChannelInit* config) override; |
Henrik Boström | 1df1bf8 | 2018-03-20 13:24:20 +0100 | [diff] [blame] | 134 | // WARNING: LEGACY. See peerconnectioninterface.h |
deadbeef | a67696b | 2015-09-29 11:56:26 -0700 | [diff] [blame] | 135 | bool GetStats(StatsObserver* observer, |
| 136 | webrtc::MediaStreamTrackInterface* track, |
| 137 | StatsOutputLevel level) override; |
Henrik Boström | 1df1bf8 | 2018-03-20 13:24:20 +0100 | [diff] [blame] | 138 | // Spec-complaint GetStats(). See peerconnectioninterface.h |
hbos | 74e1a4f | 2016-09-15 23:33:01 -0700 | [diff] [blame] | 139 | void GetStats(RTCStatsCollectorCallback* callback) override; |
Henrik Boström | 1df1bf8 | 2018-03-20 13:24:20 +0100 | [diff] [blame] | 140 | void GetStats( |
| 141 | rtc::scoped_refptr<RtpSenderInterface> selector, |
| 142 | rtc::scoped_refptr<RTCStatsCollectorCallback> callback) override; |
| 143 | void GetStats( |
| 144 | rtc::scoped_refptr<RtpReceiverInterface> selector, |
| 145 | rtc::scoped_refptr<RTCStatsCollectorCallback> callback) override; |
Harald Alvestrand | 8906187 | 2018-01-02 14:08:34 +0100 | [diff] [blame] | 146 | void ClearStatsCache() override; |
henrike@webrtc.org | 28e2075 | 2013-07-10 00:45:36 +0000 | [diff] [blame] | 147 | |
deadbeef | a67696b | 2015-09-29 11:56:26 -0700 | [diff] [blame] | 148 | SignalingState signaling_state() override; |
henrike@webrtc.org | 28e2075 | 2013-07-10 00:45:36 +0000 | [diff] [blame] | 149 | |
deadbeef | a67696b | 2015-09-29 11:56:26 -0700 | [diff] [blame] | 150 | IceConnectionState ice_connection_state() override; |
Jonas Olsson | 1204690 | 2018-12-06 11:25:14 +0100 | [diff] [blame] | 151 | IceConnectionState standardized_ice_connection_state() override; |
Jonas Olsson | 635474e | 2018-10-18 15:58:17 +0200 | [diff] [blame] | 152 | PeerConnectionState peer_connection_state() override; |
deadbeef | a67696b | 2015-09-29 11:56:26 -0700 | [diff] [blame] | 153 | IceGatheringState ice_gathering_state() override; |
henrike@webrtc.org | 28e2075 | 2013-07-10 00:45:36 +0000 | [diff] [blame] | 154 | |
deadbeef | a67696b | 2015-09-29 11:56:26 -0700 | [diff] [blame] | 155 | const SessionDescriptionInterface* local_description() const override; |
| 156 | const SessionDescriptionInterface* remote_description() const override; |
deadbeef | fe4a8a4 | 2016-12-20 17:56:17 -0800 | [diff] [blame] | 157 | const SessionDescriptionInterface* current_local_description() const override; |
| 158 | const SessionDescriptionInterface* current_remote_description() |
| 159 | const override; |
| 160 | const SessionDescriptionInterface* pending_local_description() const override; |
| 161 | const SessionDescriptionInterface* pending_remote_description() |
| 162 | const override; |
henrike@webrtc.org | 28e2075 | 2013-07-10 00:45:36 +0000 | [diff] [blame] | 163 | |
| 164 | // JSEP01 |
deadbeef | a67696b | 2015-09-29 11:56:26 -0700 | [diff] [blame] | 165 | void CreateOffer(CreateSessionDescriptionObserver* observer, |
| 166 | const RTCOfferAnswerOptions& options) override; |
hta | a2a49d9 | 2016-03-04 02:51:39 -0800 | [diff] [blame] | 167 | void CreateAnswer(CreateSessionDescriptionObserver* observer, |
| 168 | const RTCOfferAnswerOptions& options) override; |
deadbeef | a67696b | 2015-09-29 11:56:26 -0700 | [diff] [blame] | 169 | void SetLocalDescription(SetSessionDescriptionObserver* observer, |
| 170 | SessionDescriptionInterface* desc) override; |
Henrik Boström | a4ecf55 | 2017-11-23 14:17:07 +0000 | [diff] [blame] | 171 | void SetRemoteDescription(SetSessionDescriptionObserver* observer, |
| 172 | SessionDescriptionInterface* desc) override; |
Henrik Boström | 3163867 | 2017-11-23 17:48:32 +0100 | [diff] [blame] | 173 | void SetRemoteDescription( |
| 174 | std::unique_ptr<SessionDescriptionInterface> desc, |
| 175 | rtc::scoped_refptr<SetRemoteDescriptionObserverInterface> observer) |
| 176 | override; |
deadbeef | 46c7389 | 2016-11-16 19:42:04 -0800 | [diff] [blame] | 177 | PeerConnectionInterface::RTCConfiguration GetConfiguration() override; |
deadbeef | a67696b | 2015-09-29 11:56:26 -0700 | [diff] [blame] | 178 | bool SetConfiguration( |
deadbeef | 293e926 | 2017-01-11 12:28:30 -0800 | [diff] [blame] | 179 | const PeerConnectionInterface::RTCConfiguration& configuration, |
| 180 | RTCError* error) override; |
| 181 | bool SetConfiguration( |
| 182 | const PeerConnectionInterface::RTCConfiguration& configuration) override { |
| 183 | return SetConfiguration(configuration, nullptr); |
| 184 | } |
deadbeef | a67696b | 2015-09-29 11:56:26 -0700 | [diff] [blame] | 185 | bool AddIceCandidate(const IceCandidateInterface* candidate) override; |
Honghai Zhang | 7fb69db | 2016-03-14 11:59:18 -0700 | [diff] [blame] | 186 | bool RemoveIceCandidates( |
| 187 | const std::vector<cricket::Candidate>& candidates) override; |
henrike@webrtc.org | 28e2075 | 2013-07-10 00:45:36 +0000 | [diff] [blame] | 188 | |
Niels Möller | 0c4f7be | 2018-05-07 14:01:37 +0200 | [diff] [blame] | 189 | RTCError SetBitrate(const BitrateSettings& bitrate) override; |
zstein | 4b97980 | 2017-06-02 14:37:37 -0700 | [diff] [blame] | 190 | |
Alex Narest | 78609d5 | 2017-10-20 10:37:47 +0200 | [diff] [blame] | 191 | void SetBitrateAllocationStrategy( |
| 192 | std::unique_ptr<rtc::BitrateAllocationStrategy> |
| 193 | bitrate_allocation_strategy) override; |
| 194 | |
henrika | 5f6bf24 | 2017-11-01 11:06:56 +0100 | [diff] [blame] | 195 | void SetAudioPlayout(bool playout) override; |
| 196 | void SetAudioRecording(bool recording) override; |
| 197 | |
Harald Alvestrand | ad88c88 | 2018-11-28 16:47:46 +0100 | [diff] [blame] | 198 | rtc::scoped_refptr<DtlsTransportInterface> LookupDtlsTransportByMid( |
| 199 | const std::string& mid) override; |
Harald Alvestrand | 4a7b3ac | 2019-01-17 10:39:40 +0100 | [diff] [blame] | 200 | rtc::scoped_refptr<DtlsTransport> LookupDtlsTransportByMidInternal( |
| 201 | const std::string& mid); |
Harald Alvestrand | ad88c88 | 2018-11-28 16:47:46 +0100 | [diff] [blame] | 202 | |
Elad Alon | 99c3fe5 | 2017-10-13 16:29:40 +0200 | [diff] [blame] | 203 | RTC_DEPRECATED bool StartRtcEventLog(rtc::PlatformFile file, |
| 204 | int64_t max_size_bytes) override; |
Bjorn Terelius | de93943 | 2017-11-20 17:38:14 +0100 | [diff] [blame] | 205 | bool StartRtcEventLog(std::unique_ptr<RtcEventLogOutput> output, |
| 206 | int64_t output_period_ms) override; |
ivoc | 14d5dbe | 2016-07-04 07:06:55 -0700 | [diff] [blame] | 207 | void StopRtcEventLog() override; |
| 208 | |
deadbeef | a67696b | 2015-09-29 11:56:26 -0700 | [diff] [blame] | 209 | void Close() override; |
henrike@webrtc.org | 28e2075 | 2013-07-10 00:45:36 +0000 | [diff] [blame] | 210 | |
Steve Anton | 2d8609c | 2018-01-23 16:38:46 -0800 | [diff] [blame] | 211 | // PeerConnectionInternal implementation. |
| 212 | rtc::Thread* network_thread() const override { |
| 213 | return factory_->network_thread(); |
| 214 | } |
| 215 | rtc::Thread* worker_thread() const override { |
| 216 | return factory_->worker_thread(); |
| 217 | } |
| 218 | rtc::Thread* signaling_thread() const override { |
| 219 | return factory_->signaling_thread(); |
perkj | d61bf80 | 2016-03-24 03:16:19 -0700 | [diff] [blame] | 220 | } |
deadbeef | ab9b2d1 | 2015-10-14 11:33:11 -0700 | [diff] [blame] | 221 | |
Steve Anton | be5e208 | 2018-01-24 15:29:17 -0800 | [diff] [blame] | 222 | std::string session_id() const override { return session_id_; } |
Steve Anton | 75737c0 | 2017-11-06 10:37:17 -0800 | [diff] [blame] | 223 | |
Steve Anton | 2d8609c | 2018-01-23 16:38:46 -0800 | [diff] [blame] | 224 | bool initial_offerer() const override { |
Zhi Huang | e830e68 | 2018-03-30 10:48:35 -0700 | [diff] [blame] | 225 | return transport_controller_ && transport_controller_->initial_offerer(); |
Steve Anton | 2d8609c | 2018-01-23 16:38:46 -0800 | [diff] [blame] | 226 | } |
Steve Anton | 75737c0 | 2017-11-06 10:37:17 -0800 | [diff] [blame] | 227 | |
Steve Anton | 2d8609c | 2018-01-23 16:38:46 -0800 | [diff] [blame] | 228 | std::vector< |
| 229 | rtc::scoped_refptr<RtpTransceiverProxyWithInternal<RtpTransceiver>>> |
Steve Anton | b886711 | 2018-02-13 10:07:54 -0800 | [diff] [blame] | 230 | GetTransceiversInternal() const override { |
Steve Anton | 2d8609c | 2018-01-23 16:38:46 -0800 | [diff] [blame] | 231 | return transceivers_; |
| 232 | } |
| 233 | |
Steve Anton | a41959e | 2018-11-28 11:15:33 -0800 | [diff] [blame] | 234 | absl::string_view GetLocalTrackIdBySsrc(uint32_t ssrc) override; |
| 235 | absl::string_view GetRemoteTrackIdBySsrc(uint32_t ssrc) override; |
Steve Anton | 2d8609c | 2018-01-23 16:38:46 -0800 | [diff] [blame] | 236 | |
| 237 | sigslot::signal1<DataChannel*>& SignalDataChannelCreated() override { |
| 238 | return SignalDataChannelCreated_; |
| 239 | } |
| 240 | |
| 241 | cricket::RtpDataChannel* rtp_data_channel() const override { |
Steve Anton | 75737c0 | 2017-11-06 10:37:17 -0800 | [diff] [blame] | 242 | return rtp_data_channel_; |
Steve Anton | 978b876 | 2017-09-29 12:15:02 -0700 | [diff] [blame] | 243 | } |
Steve Anton | 2d8609c | 2018-01-23 16:38:46 -0800 | [diff] [blame] | 244 | |
Steve Anton | be5e208 | 2018-01-24 15:29:17 -0800 | [diff] [blame] | 245 | std::vector<rtc::scoped_refptr<DataChannel>> sctp_data_channels() |
Steve Anton | 2d8609c | 2018-01-23 16:38:46 -0800 | [diff] [blame] | 246 | const override { |
| 247 | return sctp_data_channels_; |
| 248 | } |
| 249 | |
Danil Chapovalov | 66cadcc | 2018-06-19 16:47:43 +0200 | [diff] [blame] | 250 | absl::optional<std::string> sctp_content_name() const override { |
Zhi Huang | e830e68 | 2018-03-30 10:48:35 -0700 | [diff] [blame] | 251 | return sctp_mid_; |
Steve Anton | 75737c0 | 2017-11-06 10:37:17 -0800 | [diff] [blame] | 252 | } |
Steve Anton | 2d8609c | 2018-01-23 16:38:46 -0800 | [diff] [blame] | 253 | |
Danil Chapovalov | 66cadcc | 2018-06-19 16:47:43 +0200 | [diff] [blame] | 254 | absl::optional<std::string> sctp_transport_name() const override; |
Steve Anton | 75737c0 | 2017-11-06 10:37:17 -0800 | [diff] [blame] | 255 | |
Qingsi Wang | 72a43a1 | 2018-02-20 16:03:18 -0800 | [diff] [blame] | 256 | cricket::CandidateStatsList GetPooledCandidateStats() const override; |
Steve Anton | 5dfde18 | 2018-02-06 10:34:40 -0800 | [diff] [blame] | 257 | std::map<std::string, std::string> GetTransportNamesByMid() const override; |
| 258 | std::map<std::string, cricket::TransportStats> GetTransportStatsByNames( |
| 259 | const std::set<std::string>& transport_names) override; |
Steve Anton | 2d8609c | 2018-01-23 16:38:46 -0800 | [diff] [blame] | 260 | Call::Stats GetCallStats() override; |
Steve Anton | 75737c0 | 2017-11-06 10:37:17 -0800 | [diff] [blame] | 261 | |
Steve Anton | 2d8609c | 2018-01-23 16:38:46 -0800 | [diff] [blame] | 262 | bool GetLocalCertificate( |
| 263 | const std::string& transport_name, |
| 264 | rtc::scoped_refptr<rtc::RTCCertificate>* certificate) override; |
Taylor Brandstetter | c392866 | 2018-02-23 13:04:51 -0800 | [diff] [blame] | 265 | std::unique_ptr<rtc::SSLCertChain> GetRemoteSSLCertChain( |
Steve Anton | 2d8609c | 2018-01-23 16:38:46 -0800 | [diff] [blame] | 266 | const std::string& transport_name) override; |
| 267 | bool IceRestartPending(const std::string& content_name) const override; |
| 268 | bool NeedsIceRestart(const std::string& content_name) const override; |
| 269 | bool GetSslRole(const std::string& content_name, rtc::SSLRole* role) override; |
Steve Anton | 7464fca | 2018-01-19 11:10:37 -0800 | [diff] [blame] | 270 | |
Harald Alvestrand | 1979384 | 2018-06-25 12:03:50 +0200 | [diff] [blame] | 271 | void ReturnHistogramVeryQuicklyForTesting() { |
| 272 | return_histogram_very_quickly_ = true; |
| 273 | } |
Harald Alvestrand | 7a1c7f7 | 2018-08-01 10:50:16 +0200 | [diff] [blame] | 274 | void RequestUsagePatternReportForTesting(); |
Harald Alvestrand | 1979384 | 2018-06-25 12:03:50 +0200 | [diff] [blame] | 275 | |
henrike@webrtc.org | 28e2075 | 2013-07-10 00:45:36 +0000 | [diff] [blame] | 276 | protected: |
deadbeef | a67696b | 2015-09-29 11:56:26 -0700 | [diff] [blame] | 277 | ~PeerConnection() override; |
henrike@webrtc.org | 28e2075 | 2013-07-10 00:45:36 +0000 | [diff] [blame] | 278 | |
| 279 | private: |
Henrik Boström | 3163867 | 2017-11-23 17:48:32 +0100 | [diff] [blame] | 280 | class SetRemoteDescriptionObserverAdapter; |
| 281 | friend class SetRemoteDescriptionObserverAdapter; |
| 282 | |
Steve Anton | 4171afb | 2017-11-20 10:20:22 -0800 | [diff] [blame] | 283 | struct RtpSenderInfo { |
| 284 | RtpSenderInfo() : first_ssrc(0) {} |
Seth Hampson | 845e878 | 2018-03-02 11:34:10 -0800 | [diff] [blame] | 285 | RtpSenderInfo(const std::string& stream_id, |
Steve Anton | 4171afb | 2017-11-20 10:20:22 -0800 | [diff] [blame] | 286 | const std::string sender_id, |
| 287 | uint32_t ssrc) |
Seth Hampson | 845e878 | 2018-03-02 11:34:10 -0800 | [diff] [blame] | 288 | : stream_id(stream_id), sender_id(sender_id), first_ssrc(ssrc) {} |
Steve Anton | 4171afb | 2017-11-20 10:20:22 -0800 | [diff] [blame] | 289 | bool operator==(const RtpSenderInfo& other) { |
Seth Hampson | 845e878 | 2018-03-02 11:34:10 -0800 | [diff] [blame] | 290 | return this->stream_id == other.stream_id && |
Steve Anton | 4171afb | 2017-11-20 10:20:22 -0800 | [diff] [blame] | 291 | this->sender_id == other.sender_id && |
| 292 | this->first_ssrc == other.first_ssrc; |
deadbeef | bda7e0b | 2015-12-08 17:13:40 -0800 | [diff] [blame] | 293 | } |
Seth Hampson | 845e878 | 2018-03-02 11:34:10 -0800 | [diff] [blame] | 294 | std::string stream_id; |
Steve Anton | 4171afb | 2017-11-20 10:20:22 -0800 | [diff] [blame] | 295 | std::string sender_id; |
| 296 | // An RtpSender can have many SSRCs. The first one is used as a sort of ID |
| 297 | // for communicating with the lower layers. |
| 298 | uint32_t first_ssrc; |
deadbeef | ab9b2d1 | 2015-10-14 11:33:11 -0700 | [diff] [blame] | 299 | }; |
deadbeef | ab9b2d1 | 2015-10-14 11:33:11 -0700 | [diff] [blame] | 300 | |
Steve Anton | ad18276 | 2018-09-05 20:22:40 +0000 | [diff] [blame] | 301 | // Implements MessageHandler. |
| 302 | void OnMessage(rtc::Message* msg) override; |
| 303 | |
Steve Anton | afb0bb7 | 2018-02-20 11:35:37 -0800 | [diff] [blame] | 304 | // Plan B helpers for getting the voice/video media channels for the single |
| 305 | // audio/video transceiver, if it exists. |
| 306 | cricket::VoiceMediaChannel* voice_media_channel() const; |
| 307 | cricket::VideoMediaChannel* video_media_channel() const; |
Steve Anton | 6077675 | 2018-01-10 11:51:34 -0800 | [diff] [blame] | 308 | |
Steve Anton | 4171afb | 2017-11-20 10:20:22 -0800 | [diff] [blame] | 309 | std::vector<rtc::scoped_refptr<RtpSenderProxyWithInternal<RtpSenderInternal>>> |
| 310 | GetSendersInternal() const; |
| 311 | std::vector< |
| 312 | rtc::scoped_refptr<RtpReceiverProxyWithInternal<RtpReceiverInternal>>> |
| 313 | GetReceiversInternal() const; |
| 314 | |
| 315 | rtc::scoped_refptr<RtpTransceiverProxyWithInternal<RtpTransceiver>> |
| 316 | GetAudioTransceiver() const; |
| 317 | rtc::scoped_refptr<RtpTransceiverProxyWithInternal<RtpTransceiver>> |
| 318 | GetVideoTransceiver() const; |
| 319 | |
Steve Anton | afb0bb7 | 2018-02-20 11:35:37 -0800 | [diff] [blame] | 320 | rtc::scoped_refptr<RtpTransceiverProxyWithInternal<RtpTransceiver>> |
| 321 | GetFirstAudioTransceiver() const; |
| 322 | |
deadbeef | ab9b2d1 | 2015-10-14 11:33:11 -0700 | [diff] [blame] | 323 | void CreateAudioReceiver(MediaStreamInterface* stream, |
Steve Anton | 4171afb | 2017-11-20 10:20:22 -0800 | [diff] [blame] | 324 | const RtpSenderInfo& remote_sender_info); |
perkj | f0dcfe2 | 2016-03-10 18:32:00 +0100 | [diff] [blame] | 325 | |
deadbeef | ab9b2d1 | 2015-10-14 11:33:11 -0700 | [diff] [blame] | 326 | void CreateVideoReceiver(MediaStreamInterface* stream, |
Steve Anton | 4171afb | 2017-11-20 10:20:22 -0800 | [diff] [blame] | 327 | const RtpSenderInfo& remote_sender_info); |
Henrik Boström | 933d8b0 | 2017-10-10 10:05:16 -0700 | [diff] [blame] | 328 | rtc::scoped_refptr<RtpReceiverInterface> RemoveAndStopReceiver( |
Steve Anton | 4171afb | 2017-11-20 10:20:22 -0800 | [diff] [blame] | 329 | const RtpSenderInfo& remote_sender_info); |
korniltsev.anatoly | ec390b5 | 2017-07-24 17:00:25 -0700 | [diff] [blame] | 330 | |
| 331 | // May be called either by AddStream/RemoveStream, or when a track is |
| 332 | // added/removed from a stream previously added via AddStream. |
| 333 | void AddAudioTrack(AudioTrackInterface* track, MediaStreamInterface* stream); |
| 334 | void RemoveAudioTrack(AudioTrackInterface* track, |
| 335 | MediaStreamInterface* stream); |
| 336 | void AddVideoTrack(VideoTrackInterface* track, MediaStreamInterface* stream); |
| 337 | void RemoveVideoTrack(VideoTrackInterface* track, |
| 338 | MediaStreamInterface* stream); |
henrike@webrtc.org | 28e2075 | 2013-07-10 00:45:36 +0000 | [diff] [blame] | 339 | |
Steve Anton | f9381f0 | 2017-12-14 10:23:57 -0800 | [diff] [blame] | 340 | // AddTrack implementation when Unified Plan is specified. |
| 341 | RTCErrorOr<rtc::scoped_refptr<RtpSenderInterface>> AddTrackUnifiedPlan( |
| 342 | rtc::scoped_refptr<MediaStreamTrackInterface> track, |
Seth Hampson | 845e878 | 2018-03-02 11:34:10 -0800 | [diff] [blame] | 343 | const std::vector<std::string>& stream_ids); |
Steve Anton | f9381f0 | 2017-12-14 10:23:57 -0800 | [diff] [blame] | 344 | // AddTrack implementation when Plan B is specified. |
| 345 | RTCErrorOr<rtc::scoped_refptr<RtpSenderInterface>> AddTrackPlanB( |
| 346 | rtc::scoped_refptr<MediaStreamTrackInterface> track, |
Seth Hampson | 845e878 | 2018-03-02 11:34:10 -0800 | [diff] [blame] | 347 | const std::vector<std::string>& stream_ids); |
Steve Anton | f9381f0 | 2017-12-14 10:23:57 -0800 | [diff] [blame] | 348 | |
| 349 | // Returns the first RtpTransceiver suitable for a newly added track, if such |
| 350 | // transceiver is available. |
| 351 | rtc::scoped_refptr<RtpTransceiverProxyWithInternal<RtpTransceiver>> |
| 352 | FindFirstTransceiverForAddedTrack( |
| 353 | rtc::scoped_refptr<MediaStreamTrackInterface> track); |
| 354 | |
Steve Anton | f9381f0 | 2017-12-14 10:23:57 -0800 | [diff] [blame] | 355 | rtc::scoped_refptr<RtpTransceiverProxyWithInternal<RtpTransceiver>> |
| 356 | FindTransceiverBySender(rtc::scoped_refptr<RtpSenderInterface> sender); |
| 357 | |
Steve Anton | 22da89f | 2018-01-25 13:58:07 -0800 | [diff] [blame] | 358 | // Internal implementation for AddTransceiver family of methods. If |
| 359 | // |fire_callback| is set, fires OnRenegotiationNeeded callback if successful. |
Steve Anton | 9158ef6 | 2017-11-27 13:01:52 -0800 | [diff] [blame] | 360 | RTCErrorOr<rtc::scoped_refptr<RtpTransceiverInterface>> AddTransceiver( |
| 361 | cricket::MediaType media_type, |
| 362 | rtc::scoped_refptr<MediaStreamTrackInterface> track, |
Steve Anton | 22da89f | 2018-01-25 13:58:07 -0800 | [diff] [blame] | 363 | const RtpTransceiverInit& init, |
| 364 | bool fire_callback = true); |
Steve Anton | 9158ef6 | 2017-11-27 13:01:52 -0800 | [diff] [blame] | 365 | |
Steve Anton | 02ee47c | 2018-01-10 16:26:06 -0800 | [diff] [blame] | 366 | rtc::scoped_refptr<RtpSenderProxyWithInternal<RtpSenderInternal>> |
| 367 | CreateSender(cricket::MediaType media_type, |
Steve Anton | 111fdfd | 2018-06-25 13:03:36 -0700 | [diff] [blame] | 368 | const std::string& id, |
Steve Anton | 02ee47c | 2018-01-10 16:26:06 -0800 | [diff] [blame] | 369 | rtc::scoped_refptr<MediaStreamTrackInterface> track, |
Florent Castelli | 892acf0 | 2018-10-01 22:47:20 +0200 | [diff] [blame] | 370 | const std::vector<std::string>& stream_ids, |
| 371 | const std::vector<RtpEncodingParameters>& send_encodings); |
Steve Anton | 02ee47c | 2018-01-10 16:26:06 -0800 | [diff] [blame] | 372 | |
| 373 | rtc::scoped_refptr<RtpReceiverProxyWithInternal<RtpReceiverInternal>> |
| 374 | CreateReceiver(cricket::MediaType media_type, const std::string& receiver_id); |
| 375 | |
Steve Anton | f9381f0 | 2017-12-14 10:23:57 -0800 | [diff] [blame] | 376 | // Create a new RtpTransceiver of the given type and add it to the list of |
| 377 | // transceivers. |
| 378 | rtc::scoped_refptr<RtpTransceiverProxyWithInternal<RtpTransceiver>> |
Steve Anton | 02ee47c | 2018-01-10 16:26:06 -0800 | [diff] [blame] | 379 | CreateAndAddTransceiver( |
| 380 | rtc::scoped_refptr<RtpSenderProxyWithInternal<RtpSenderInternal>> sender, |
| 381 | rtc::scoped_refptr<RtpReceiverProxyWithInternal<RtpReceiverInternal>> |
| 382 | receiver); |
Steve Anton | f9381f0 | 2017-12-14 10:23:57 -0800 | [diff] [blame] | 383 | |
Steve Anton | ba81867 | 2017-11-06 10:21:57 -0800 | [diff] [blame] | 384 | void SetIceConnectionState(IceConnectionState new_state); |
Jonas Olsson | 635474e | 2018-10-18 15:58:17 +0200 | [diff] [blame] | 385 | void SetStandardizedIceConnectionState( |
| 386 | PeerConnectionInterface::IceConnectionState new_state); |
| 387 | void SetConnectionState( |
| 388 | PeerConnectionInterface::PeerConnectionState new_state); |
| 389 | |
Steve Anton | ba81867 | 2017-11-06 10:21:57 -0800 | [diff] [blame] | 390 | // Called any time the IceGatheringState changes |
| 391 | void OnIceGatheringChange(IceGatheringState new_state); |
| 392 | // New ICE candidate has been gathered. |
| 393 | void OnIceCandidate(std::unique_ptr<IceCandidateInterface> candidate); |
| 394 | // Some local ICE candidates have been removed. |
Honghai Zhang | 7fb69db | 2016-03-14 11:59:18 -0700 | [diff] [blame] | 395 | void OnIceCandidatesRemoved( |
Steve Anton | ba81867 | 2017-11-06 10:21:57 -0800 | [diff] [blame] | 396 | const std::vector<cricket::Candidate>& candidates); |
henrike@webrtc.org | 28e2075 | 2013-07-10 00:45:36 +0000 | [diff] [blame] | 397 | |
Steve Anton | ba81867 | 2017-11-06 10:21:57 -0800 | [diff] [blame] | 398 | // Update the state, signaling if necessary. |
henrike@webrtc.org | 28e2075 | 2013-07-10 00:45:36 +0000 | [diff] [blame] | 399 | void ChangeSignalingState(SignalingState signaling_state); |
| 400 | |
deadbeef | eb45981 | 2015-12-15 19:24:43 -0800 | [diff] [blame] | 401 | // Signals from MediaStreamObserver. |
| 402 | void OnAudioTrackAdded(AudioTrackInterface* track, |
| 403 | MediaStreamInterface* stream); |
| 404 | void OnAudioTrackRemoved(AudioTrackInterface* track, |
| 405 | MediaStreamInterface* stream); |
| 406 | void OnVideoTrackAdded(VideoTrackInterface* track, |
| 407 | MediaStreamInterface* stream); |
| 408 | void OnVideoTrackRemoved(VideoTrackInterface* track, |
| 409 | MediaStreamInterface* stream); |
| 410 | |
Henrik Boström | 3163867 | 2017-11-23 17:48:32 +0100 | [diff] [blame] | 411 | void PostSetSessionDescriptionSuccess( |
| 412 | SetSessionDescriptionObserver* observer); |
henrike@webrtc.org | 28e2075 | 2013-07-10 00:45:36 +0000 | [diff] [blame] | 413 | void PostSetSessionDescriptionFailure(SetSessionDescriptionObserver* observer, |
Steve Anton | ad18276 | 2018-09-05 20:22:40 +0000 | [diff] [blame] | 414 | RTCError&& error); |
deadbeef | ab9b2d1 | 2015-10-14 11:33:11 -0700 | [diff] [blame] | 415 | void PostCreateSessionDescriptionFailure( |
| 416 | CreateSessionDescriptionObserver* observer, |
Harald Alvestrand | 5081c0c | 2018-03-09 15:18:03 +0100 | [diff] [blame] | 417 | RTCError error); |
henrike@webrtc.org | 28e2075 | 2013-07-10 00:45:36 +0000 | [diff] [blame] | 418 | |
Steve Anton | 8a00691 | 2017-12-04 15:25:56 -0800 | [diff] [blame] | 419 | // Synchronous implementations of SetLocalDescription/SetRemoteDescription |
| 420 | // that return an RTCError instead of invoking a callback. |
| 421 | RTCError ApplyLocalDescription( |
| 422 | std::unique_ptr<SessionDescriptionInterface> desc); |
| 423 | RTCError ApplyRemoteDescription( |
| 424 | std::unique_ptr<SessionDescriptionInterface> desc); |
| 425 | |
Steve Anton | dcc3c02 | 2017-12-22 16:02:54 -0800 | [diff] [blame] | 426 | // Updates the local RtpTransceivers according to the JSEP rules. Called as |
| 427 | // part of setting the local/remote description. |
| 428 | RTCError UpdateTransceiversAndDataChannels( |
| 429 | cricket::ContentSource source, |
Seth Hampson | ae8a90a | 2018-02-13 15:33:48 -0800 | [diff] [blame] | 430 | const SessionDescriptionInterface& new_session, |
| 431 | const SessionDescriptionInterface* old_local_description, |
Karl Wiberg | 106d92d | 2019-02-14 10:17:47 +0100 | [diff] [blame^] | 432 | const SessionDescriptionInterface* old_remote_description) |
| 433 | RTC_RUN_ON(signaling_thread()); |
Steve Anton | dcc3c02 | 2017-12-22 16:02:54 -0800 | [diff] [blame] | 434 | |
| 435 | // Either creates or destroys the transceiver's BaseChannel according to the |
| 436 | // given media section. |
| 437 | RTCError UpdateTransceiverChannel( |
| 438 | rtc::scoped_refptr<RtpTransceiverProxyWithInternal<RtpTransceiver>> |
| 439 | transceiver, |
| 440 | const cricket::ContentInfo& content, |
| 441 | const cricket::ContentGroup* bundle_group); |
| 442 | |
Steve Anton | fa2260d | 2017-12-28 16:38:23 -0800 | [diff] [blame] | 443 | // Either creates or destroys the local data channel according to the given |
| 444 | // media section. |
| 445 | RTCError UpdateDataChannel(cricket::ContentSource source, |
| 446 | const cricket::ContentInfo& content, |
Karl Wiberg | 106d92d | 2019-02-14 10:17:47 +0100 | [diff] [blame^] | 447 | const cricket::ContentGroup* bundle_group) |
| 448 | RTC_RUN_ON(signaling_thread()); |
Steve Anton | fa2260d | 2017-12-28 16:38:23 -0800 | [diff] [blame] | 449 | |
Steve Anton | dcc3c02 | 2017-12-22 16:02:54 -0800 | [diff] [blame] | 450 | // Associate the given transceiver according to the JSEP rules. |
| 451 | RTCErrorOr< |
| 452 | rtc::scoped_refptr<RtpTransceiverProxyWithInternal<RtpTransceiver>>> |
| 453 | AssociateTransceiver(cricket::ContentSource source, |
Seth Hampson | ae8a90a | 2018-02-13 15:33:48 -0800 | [diff] [blame] | 454 | SdpType type, |
Steve Anton | dcc3c02 | 2017-12-22 16:02:54 -0800 | [diff] [blame] | 455 | size_t mline_index, |
| 456 | const cricket::ContentInfo& content, |
Seth Hampson | ae8a90a | 2018-02-13 15:33:48 -0800 | [diff] [blame] | 457 | const cricket::ContentInfo* old_local_content, |
| 458 | const cricket::ContentInfo* old_remote_content); |
Steve Anton | dcc3c02 | 2017-12-22 16:02:54 -0800 | [diff] [blame] | 459 | |
| 460 | // Returns the RtpTransceiver, if found, that is associated to the given MID. |
| 461 | rtc::scoped_refptr<RtpTransceiverProxyWithInternal<RtpTransceiver>> |
| 462 | GetAssociatedTransceiver(const std::string& mid) const; |
| 463 | |
| 464 | // Returns the RtpTransceiver, if found, that was assigned to the given mline |
| 465 | // index in CreateOffer. |
| 466 | rtc::scoped_refptr<RtpTransceiverProxyWithInternal<RtpTransceiver>> |
| 467 | GetTransceiverByMLineIndex(size_t mline_index) const; |
| 468 | |
| 469 | // Returns an RtpTransciever, if available, that can be used to receive the |
| 470 | // given media type according to JSEP rules. |
| 471 | rtc::scoped_refptr<RtpTransceiverProxyWithInternal<RtpTransceiver>> |
| 472 | FindAvailableTransceiverToReceive(cricket::MediaType media_type) const; |
| 473 | |
Steve Anton | ed10bd9 | 2017-12-05 10:52:59 -0800 | [diff] [blame] | 474 | // Returns the media section in the given session description that is |
| 475 | // associated with the RtpTransceiver. Returns null if none found or this |
| 476 | // RtpTransceiver is not associated. Logic varies depending on the |
| 477 | // SdpSemantics specified in the configuration. |
| 478 | const cricket::ContentInfo* FindMediaSectionForTransceiver( |
| 479 | rtc::scoped_refptr<RtpTransceiverProxyWithInternal<RtpTransceiver>> |
| 480 | transceiver, |
| 481 | const SessionDescriptionInterface* sdesc) const; |
| 482 | |
Henrik Boström | afa07dd | 2018-12-20 11:06:02 +0100 | [diff] [blame] | 483 | // Runs the algorithm **set the associated remote streams** specified in |
| 484 | // https://w3c.github.io/webrtc-pc/#set-associated-remote-streams. |
| 485 | void SetAssociatedRemoteStreams( |
| 486 | rtc::scoped_refptr<RtpReceiverInternal> receiver, |
| 487 | const std::vector<std::string>& stream_ids, |
| 488 | std::vector<rtc::scoped_refptr<MediaStreamInterface>>* added_streams, |
| 489 | std::vector<rtc::scoped_refptr<MediaStreamInterface>>* removed_streams); |
| 490 | |
Steve Anton | 0f5400a | 2018-07-17 14:25:36 -0700 | [diff] [blame] | 491 | // Runs the algorithm **process the removal of a remote track** specified in |
| 492 | // the WebRTC specification. |
| 493 | // This method will update the following lists: |
| 494 | // |remove_list| is the list of transceivers for which the receiving track is |
| 495 | // being removed. |
| 496 | // |removed_streams| is the list of streams which no longer have a receiving |
| 497 | // track so should be removed. |
| 498 | // https://w3c.github.io/webrtc-pc/#process-remote-track-removal |
| 499 | void ProcessRemovalOfRemoteTrack( |
| 500 | rtc::scoped_refptr<RtpTransceiverProxyWithInternal<RtpTransceiver>> |
| 501 | transceiver, |
| 502 | std::vector<rtc::scoped_refptr<RtpTransceiverInterface>>* remove_list, |
| 503 | std::vector<rtc::scoped_refptr<MediaStreamInterface>>* removed_streams); |
| 504 | |
Henrik Boström | afa07dd | 2018-12-20 11:06:02 +0100 | [diff] [blame] | 505 | void RemoveRemoteStreamsIfEmpty( |
| 506 | const std::vector<rtc::scoped_refptr<MediaStreamInterface>>& |
| 507 | remote_streams, |
| 508 | std::vector<rtc::scoped_refptr<MediaStreamInterface>>* removed_streams); |
| 509 | |
Steve Anton | 52d8677 | 2018-02-20 15:48:12 -0800 | [diff] [blame] | 510 | void OnNegotiationNeeded(); |
| 511 | |
henrike@webrtc.org | 28e2075 | 2013-07-10 00:45:36 +0000 | [diff] [blame] | 512 | bool IsClosed() const { |
| 513 | return signaling_state_ == PeerConnectionInterface::kClosed; |
| 514 | } |
| 515 | |
deadbeef | ab9b2d1 | 2015-10-14 11:33:11 -0700 | [diff] [blame] | 516 | // Returns a MediaSessionOptions struct with options decided by |options|, |
| 517 | // the local MediaStreams and DataChannels. |
Steve Anton | dcc3c02 | 2017-12-22 16:02:54 -0800 | [diff] [blame] | 518 | void GetOptionsForOffer(const PeerConnectionInterface::RTCOfferAnswerOptions& |
| 519 | offer_answer_options, |
| 520 | cricket::MediaSessionOptions* session_options); |
| 521 | void GetOptionsForPlanBOffer( |
| 522 | const PeerConnectionInterface::RTCOfferAnswerOptions& |
| 523 | offer_answer_options, |
| 524 | cricket::MediaSessionOptions* session_options); |
| 525 | void GetOptionsForUnifiedPlanOffer( |
| 526 | const PeerConnectionInterface::RTCOfferAnswerOptions& |
| 527 | offer_answer_options, |
deadbeef | ab9b2d1 | 2015-10-14 11:33:11 -0700 | [diff] [blame] | 528 | cricket::MediaSessionOptions* session_options); |
| 529 | |
Steve Anton | 22da89f | 2018-01-25 13:58:07 -0800 | [diff] [blame] | 530 | RTCError HandleLegacyOfferOptions(const RTCOfferAnswerOptions& options); |
| 531 | void RemoveRecvDirectionFromReceivingTransceiversOfType( |
| 532 | cricket::MediaType media_type); |
| 533 | void AddUpToOneReceivingTransceiverOfType(cricket::MediaType media_type); |
| 534 | std::vector< |
| 535 | rtc::scoped_refptr<RtpTransceiverProxyWithInternal<RtpTransceiver>>> |
| 536 | GetReceivingTransceiversOfType(cricket::MediaType media_type); |
| 537 | |
deadbeef | ab9b2d1 | 2015-10-14 11:33:11 -0700 | [diff] [blame] | 538 | // Returns a MediaSessionOptions struct with options decided by |
| 539 | // |constraints|, the local MediaStreams and DataChannels. |
Steve Anton | dcc3c02 | 2017-12-22 16:02:54 -0800 | [diff] [blame] | 540 | void GetOptionsForAnswer(const RTCOfferAnswerOptions& offer_answer_options, |
zhihuang | 1c378ed | 2017-08-17 14:10:50 -0700 | [diff] [blame] | 541 | cricket::MediaSessionOptions* session_options); |
Steve Anton | dcc3c02 | 2017-12-22 16:02:54 -0800 | [diff] [blame] | 542 | void GetOptionsForPlanBAnswer( |
| 543 | const PeerConnectionInterface::RTCOfferAnswerOptions& |
| 544 | offer_answer_options, |
| 545 | cricket::MediaSessionOptions* session_options); |
| 546 | void GetOptionsForUnifiedPlanAnswer( |
| 547 | const PeerConnectionInterface::RTCOfferAnswerOptions& |
| 548 | offer_answer_options, |
| 549 | cricket::MediaSessionOptions* session_options); |
hta | a2a49d9 | 2016-03-04 02:51:39 -0800 | [diff] [blame] | 550 | |
zhihuang | 1c378ed | 2017-08-17 14:10:50 -0700 | [diff] [blame] | 551 | // Generates MediaDescriptionOptions for the |session_opts| based on existing |
| 552 | // local description or remote description. |
| 553 | void GenerateMediaDescriptionOptions( |
| 554 | const SessionDescriptionInterface* session_desc, |
Steve Anton | 1d03a75 | 2017-11-27 14:30:09 -0800 | [diff] [blame] | 555 | RtpTransceiverDirection audio_direction, |
| 556 | RtpTransceiverDirection video_direction, |
Danil Chapovalov | 66cadcc | 2018-06-19 16:47:43 +0200 | [diff] [blame] | 557 | absl::optional<size_t>* audio_index, |
| 558 | absl::optional<size_t>* video_index, |
| 559 | absl::optional<size_t>* data_index, |
hta | a2a49d9 | 2016-03-04 02:51:39 -0800 | [diff] [blame] | 560 | cricket::MediaSessionOptions* session_options); |
deadbeef | ab9b2d1 | 2015-10-14 11:33:11 -0700 | [diff] [blame] | 561 | |
Steve Anton | fa2260d | 2017-12-28 16:38:23 -0800 | [diff] [blame] | 562 | // Generates the active MediaDescriptionOptions for the local data channel |
| 563 | // given the specified MID. |
| 564 | cricket::MediaDescriptionOptions GetMediaDescriptionOptionsForActiveData( |
| 565 | const std::string& mid) const; |
| 566 | |
| 567 | // Generates the rejected MediaDescriptionOptions for the local data channel |
| 568 | // given the specified MID. |
| 569 | cricket::MediaDescriptionOptions GetMediaDescriptionOptionsForRejectedData( |
| 570 | const std::string& mid) const; |
| 571 | |
| 572 | // Returns the MID for the data section associated with either the |
| 573 | // RtpDataChannel or SCTP data channel, if it has been set. If no data |
| 574 | // channels are configured this will return nullopt. |
Danil Chapovalov | 66cadcc | 2018-06-19 16:47:43 +0200 | [diff] [blame] | 575 | absl::optional<std::string> GetDataMid() const; |
Steve Anton | fa2260d | 2017-12-28 16:38:23 -0800 | [diff] [blame] | 576 | |
Steve Anton | 4171afb | 2017-11-20 10:20:22 -0800 | [diff] [blame] | 577 | // Remove all local and remote senders of type |media_type|. |
deadbeef | faac497 | 2015-11-12 15:33:07 -0800 | [diff] [blame] | 578 | // Called when a media type is rejected (m-line set to port 0). |
Steve Anton | 4171afb | 2017-11-20 10:20:22 -0800 | [diff] [blame] | 579 | void RemoveSenders(cricket::MediaType media_type); |
deadbeef | faac497 | 2015-11-12 15:33:07 -0800 | [diff] [blame] | 580 | |
deadbeef | bda7e0b | 2015-12-08 17:13:40 -0800 | [diff] [blame] | 581 | // Makes sure a MediaStreamTrack is created for each StreamParam in |streams|, |
| 582 | // and existing MediaStreamTracks are removed if there is no corresponding |
| 583 | // StreamParam. If |default_track_needed| is true, a default MediaStreamTrack |
| 584 | // is created if it doesn't exist; if false, it's removed if it exists. |
| 585 | // |media_type| is the type of the |streams| and can be either audio or video. |
deadbeef | ab9b2d1 | 2015-10-14 11:33:11 -0700 | [diff] [blame] | 586 | // If a new MediaStream is created it is added to |new_streams|. |
Steve Anton | 4171afb | 2017-11-20 10:20:22 -0800 | [diff] [blame] | 587 | void UpdateRemoteSendersList( |
deadbeef | ab9b2d1 | 2015-10-14 11:33:11 -0700 | [diff] [blame] | 588 | const std::vector<cricket::StreamParams>& streams, |
deadbeef | bda7e0b | 2015-12-08 17:13:40 -0800 | [diff] [blame] | 589 | bool default_track_needed, |
deadbeef | ab9b2d1 | 2015-10-14 11:33:11 -0700 | [diff] [blame] | 590 | cricket::MediaType media_type, |
| 591 | StreamCollection* new_streams); |
| 592 | |
Steve Anton | 4171afb | 2017-11-20 10:20:22 -0800 | [diff] [blame] | 593 | // Triggered when a remote sender has been seen for the first time in a remote |
deadbeef | ab9b2d1 | 2015-10-14 11:33:11 -0700 | [diff] [blame] | 594 | // session description. It creates a remote MediaStreamTrackInterface |
| 595 | // implementation and triggers CreateAudioReceiver or CreateVideoReceiver. |
Steve Anton | 4171afb | 2017-11-20 10:20:22 -0800 | [diff] [blame] | 596 | void OnRemoteSenderAdded(const RtpSenderInfo& sender_info, |
| 597 | cricket::MediaType media_type); |
deadbeef | ab9b2d1 | 2015-10-14 11:33:11 -0700 | [diff] [blame] | 598 | |
Steve Anton | 4171afb | 2017-11-20 10:20:22 -0800 | [diff] [blame] | 599 | // Triggered when a remote sender has been removed from a remote session |
| 600 | // description. It removes the remote sender with id |sender_id| from a remote |
deadbeef | ab9b2d1 | 2015-10-14 11:33:11 -0700 | [diff] [blame] | 601 | // MediaStream and triggers DestroyAudioReceiver or DestroyVideoReceiver. |
Steve Anton | 4171afb | 2017-11-20 10:20:22 -0800 | [diff] [blame] | 602 | void OnRemoteSenderRemoved(const RtpSenderInfo& sender_info, |
| 603 | cricket::MediaType media_type); |
deadbeef | ab9b2d1 | 2015-10-14 11:33:11 -0700 | [diff] [blame] | 604 | |
| 605 | // Finds remote MediaStreams without any tracks and removes them from |
| 606 | // |remote_streams_| and notifies the observer that the MediaStreams no longer |
| 607 | // exist. |
| 608 | void UpdateEndedRemoteMediaStreams(); |
| 609 | |
deadbeef | ab9b2d1 | 2015-10-14 11:33:11 -0700 | [diff] [blame] | 610 | // Loops through the vector of |streams| and finds added and removed |
| 611 | // StreamParams since last time this method was called. |
Steve Anton | 4171afb | 2017-11-20 10:20:22 -0800 | [diff] [blame] | 612 | // For each new or removed StreamParam, OnLocalSenderSeen or |
| 613 | // OnLocalSenderRemoved is invoked. |
| 614 | void UpdateLocalSenders(const std::vector<cricket::StreamParams>& streams, |
| 615 | cricket::MediaType media_type); |
deadbeef | ab9b2d1 | 2015-10-14 11:33:11 -0700 | [diff] [blame] | 616 | |
Steve Anton | 4171afb | 2017-11-20 10:20:22 -0800 | [diff] [blame] | 617 | // Triggered when a local sender has been seen for the first time in a local |
deadbeef | ab9b2d1 | 2015-10-14 11:33:11 -0700 | [diff] [blame] | 618 | // session description. |
| 619 | // This method triggers CreateAudioSender or CreateVideoSender if the rtp |
| 620 | // streams in the local SessionDescription can be mapped to a MediaStreamTrack |
| 621 | // in a MediaStream in |local_streams_| |
Steve Anton | 4171afb | 2017-11-20 10:20:22 -0800 | [diff] [blame] | 622 | void OnLocalSenderAdded(const RtpSenderInfo& sender_info, |
| 623 | cricket::MediaType media_type); |
deadbeef | ab9b2d1 | 2015-10-14 11:33:11 -0700 | [diff] [blame] | 624 | |
Steve Anton | 4171afb | 2017-11-20 10:20:22 -0800 | [diff] [blame] | 625 | // Triggered when a local sender has been removed from a local session |
deadbeef | ab9b2d1 | 2015-10-14 11:33:11 -0700 | [diff] [blame] | 626 | // description. |
| 627 | // This method triggers DestroyAudioSender or DestroyVideoSender if a stream |
| 628 | // has been removed from the local SessionDescription and the stream can be |
| 629 | // mapped to a MediaStreamTrack in a MediaStream in |local_streams_|. |
Steve Anton | 4171afb | 2017-11-20 10:20:22 -0800 | [diff] [blame] | 630 | void OnLocalSenderRemoved(const RtpSenderInfo& sender_info, |
| 631 | cricket::MediaType media_type); |
deadbeef | ab9b2d1 | 2015-10-14 11:33:11 -0700 | [diff] [blame] | 632 | |
| 633 | void UpdateLocalRtpDataChannels(const cricket::StreamParamsVec& streams); |
Karl Wiberg | 106d92d | 2019-02-14 10:17:47 +0100 | [diff] [blame^] | 634 | void UpdateRemoteRtpDataChannels(const cricket::StreamParamsVec& streams) |
| 635 | RTC_RUN_ON(signaling_thread()); |
deadbeef | ab9b2d1 | 2015-10-14 11:33:11 -0700 | [diff] [blame] | 636 | void UpdateClosingRtpDataChannels( |
| 637 | const std::vector<std::string>& active_channels, |
| 638 | bool is_local_update); |
| 639 | void CreateRemoteRtpDataChannel(const std::string& label, |
Karl Wiberg | 106d92d | 2019-02-14 10:17:47 +0100 | [diff] [blame^] | 640 | uint32_t remote_ssrc) |
| 641 | RTC_RUN_ON(signaling_thread()); |
deadbeef | ab9b2d1 | 2015-10-14 11:33:11 -0700 | [diff] [blame] | 642 | |
| 643 | // Creates channel and adds it to the collection of DataChannels that will |
| 644 | // be offered in a SessionDescription. |
| 645 | rtc::scoped_refptr<DataChannel> InternalCreateDataChannel( |
| 646 | const std::string& label, |
Karl Wiberg | 106d92d | 2019-02-14 10:17:47 +0100 | [diff] [blame^] | 647 | const InternalDataChannelInit* config) RTC_RUN_ON(signaling_thread()); |
deadbeef | ab9b2d1 | 2015-10-14 11:33:11 -0700 | [diff] [blame] | 648 | |
| 649 | // Checks if any data channel has been added. |
| 650 | bool HasDataChannels() const; |
| 651 | |
| 652 | void AllocateSctpSids(rtc::SSLRole role); |
| 653 | void OnSctpDataChannelClosed(DataChannel* channel); |
| 654 | |
deadbeef | ab9b2d1 | 2015-10-14 11:33:11 -0700 | [diff] [blame] | 655 | void OnDataChannelDestroyed(); |
Steve Anton | ba81867 | 2017-11-06 10:21:57 -0800 | [diff] [blame] | 656 | // Called when a valid data channel OPEN message is received. |
deadbeef | ab9b2d1 | 2015-10-14 11:33:11 -0700 | [diff] [blame] | 657 | void OnDataChannelOpenMessage(const std::string& label, |
Karl Wiberg | 106d92d | 2019-02-14 10:17:47 +0100 | [diff] [blame^] | 658 | const InternalDataChannelInit& config) |
| 659 | RTC_RUN_ON(signaling_thread()); |
| 660 | |
Bjorn Mellem | 175aa2e | 2018-11-08 11:23:22 -0800 | [diff] [blame] | 661 | // Parses and handles open messages. Returns true if the message is an open |
| 662 | // message, false otherwise. |
| 663 | bool HandleOpenMessage_s(const cricket::ReceiveDataParams& params, |
| 664 | const rtc::CopyOnWriteBuffer& buffer) |
| 665 | RTC_RUN_ON(signaling_thread()); |
deadbeef | ab9b2d1 | 2015-10-14 11:33:11 -0700 | [diff] [blame] | 666 | |
Steve Anton | 4171afb | 2017-11-20 10:20:22 -0800 | [diff] [blame] | 667 | // Returns true if the PeerConnection is configured to use Unified Plan |
| 668 | // semantics for creating offers/answers and setting local/remote |
| 669 | // descriptions. If this is true the RtpTransceiver API will also be available |
| 670 | // to the user. If this is false, Plan B semantics are assumed. |
Steve Anton | 79e7960 | 2017-11-20 10:25:56 -0800 | [diff] [blame] | 671 | // TODO(bugs.webrtc.org/8530): Flip the default to be Unified Plan once |
| 672 | // sufficient time has passed. |
| 673 | bool IsUnifiedPlan() const { |
| 674 | return configuration_.sdp_semantics == SdpSemantics::kUnifiedPlan; |
| 675 | } |
Steve Anton | 4171afb | 2017-11-20 10:20:22 -0800 | [diff] [blame] | 676 | |
Steve Anton | 06817cd | 2018-12-18 15:55:30 -0800 | [diff] [blame] | 677 | // The offer/answer machinery assumes the media section MID is present and |
| 678 | // unique. To support legacy end points that do not supply a=mid lines, this |
| 679 | // method will modify the session description to add MIDs generated according |
| 680 | // to the SDP semantics. |
| 681 | void FillInMissingRemoteMids(cricket::SessionDescription* remote_description); |
| 682 | |
Steve Anton | 4171afb | 2017-11-20 10:20:22 -0800 | [diff] [blame] | 683 | // Is there an RtpSender of the given type? |
zhihuang | 1c378ed | 2017-08-17 14:10:50 -0700 | [diff] [blame] | 684 | bool HasRtpSender(cricket::MediaType type) const; |
deadbeef | fac0655 | 2015-11-25 11:26:01 -0800 | [diff] [blame] | 685 | |
Steve Anton | 4171afb | 2017-11-20 10:20:22 -0800 | [diff] [blame] | 686 | // Return the RtpSender with the given track attached. |
| 687 | rtc::scoped_refptr<RtpSenderProxyWithInternal<RtpSenderInternal>> |
| 688 | FindSenderForTrack(MediaStreamTrackInterface* track) const; |
deadbeef | 70ab1a1 | 2015-09-28 16:53:55 -0700 | [diff] [blame] | 689 | |
Steve Anton | 4171afb | 2017-11-20 10:20:22 -0800 | [diff] [blame] | 690 | // Return the RtpSender with the given id, or null if none exists. |
| 691 | rtc::scoped_refptr<RtpSenderProxyWithInternal<RtpSenderInternal>> |
| 692 | FindSenderById(const std::string& sender_id) const; |
| 693 | |
| 694 | // Return the RtpReceiver with the given id, or null if none exists. |
| 695 | rtc::scoped_refptr<RtpReceiverProxyWithInternal<RtpReceiverInternal>> |
| 696 | FindReceiverById(const std::string& receiver_id) const; |
| 697 | |
| 698 | std::vector<RtpSenderInfo>* GetRemoteSenderInfos( |
| 699 | cricket::MediaType media_type); |
| 700 | std::vector<RtpSenderInfo>* GetLocalSenderInfos( |
| 701 | cricket::MediaType media_type); |
| 702 | const RtpSenderInfo* FindSenderInfo(const std::vector<RtpSenderInfo>& infos, |
Emircan Uysaler | bc609ea | 2018-03-27 21:57:18 +0000 | [diff] [blame] | 703 | const std::string& stream_id, |
Steve Anton | 4171afb | 2017-11-20 10:20:22 -0800 | [diff] [blame] | 704 | const std::string sender_id) const; |
deadbeef | ab9b2d1 | 2015-10-14 11:33:11 -0700 | [diff] [blame] | 705 | |
| 706 | // Returns the specified SCTP DataChannel in sctp_data_channels_, |
| 707 | // or nullptr if not found. |
| 708 | DataChannel* FindDataChannelBySid(int sid) const; |
| 709 | |
Taylor Brandstetter | a1c3035 | 2016-05-13 08:15:11 -0700 | [diff] [blame] | 710 | // Called when first configuring the port allocator. |
Harald Alvestrand | b2a7478 | 2018-06-28 13:54:07 +0200 | [diff] [blame] | 711 | bool InitializePortAllocator_n( |
| 712 | const cricket::ServerAddresses& stun_servers, |
| 713 | const std::vector<cricket::RelayServerConfig>& turn_servers, |
| 714 | const RTCConfiguration& configuration); |
deadbeef | 293e926 | 2017-01-11 12:28:30 -0800 | [diff] [blame] | 715 | // Called when SetConfiguration is called to apply the supported subset |
| 716 | // of the configuration on the network thread. |
| 717 | bool ReconfigurePortAllocator_n( |
| 718 | const cricket::ServerAddresses& stun_servers, |
| 719 | const std::vector<cricket::RelayServerConfig>& turn_servers, |
| 720 | IceTransportsType type, |
| 721 | int candidate_pool_size, |
Jonas Oreland | bdcee28 | 2017-10-10 14:01:40 +0200 | [diff] [blame] | 722 | bool prune_turn_ports, |
Qingsi Wang | db53f8e | 2018-02-20 14:45:49 -0800 | [diff] [blame] | 723 | webrtc::TurnCustomizer* turn_customizer, |
Danil Chapovalov | 66cadcc | 2018-06-19 16:47:43 +0200 | [diff] [blame] | 724 | absl::optional<int> stun_candidate_keepalive_interval); |
Taylor Brandstetter | a1c3035 | 2016-05-13 08:15:11 -0700 | [diff] [blame] | 725 | |
Elad Alon | 99c3fe5 | 2017-10-13 16:29:40 +0200 | [diff] [blame] | 726 | // Starts output of an RTC event log to the given output object. |
ivoc | 14d5dbe | 2016-07-04 07:06:55 -0700 | [diff] [blame] | 727 | // This function should only be called from the worker thread. |
Bjorn Terelius | de93943 | 2017-11-20 17:38:14 +0100 | [diff] [blame] | 728 | bool StartRtcEventLog_w(std::unique_ptr<RtcEventLogOutput> output, |
| 729 | int64_t output_period_ms); |
Elad Alon | 99c3fe5 | 2017-10-13 16:29:40 +0200 | [diff] [blame] | 730 | |
Elad Alon | acb2417 | 2017-10-06 14:32:13 +0200 | [diff] [blame] | 731 | // Stops recording an RTC event log. |
ivoc | 14d5dbe | 2016-07-04 07:06:55 -0700 | [diff] [blame] | 732 | // This function should only be called from the worker thread. |
| 733 | void StopRtcEventLog_w(); |
| 734 | |
Steve Anton | 038834f | 2017-07-14 15:59:59 -0700 | [diff] [blame] | 735 | // Ensures the configuration doesn't have any parameters with invalid values, |
| 736 | // or values that conflict with other parameters. |
| 737 | // |
| 738 | // Returns RTCError::OK() if there are no issues. |
| 739 | RTCError ValidateConfiguration(const RTCConfiguration& config) const; |
| 740 | |
Steve Anton | ba81867 | 2017-11-06 10:21:57 -0800 | [diff] [blame] | 741 | cricket::ChannelManager* channel_manager() const; |
Steve Anton | ba81867 | 2017-11-06 10:21:57 -0800 | [diff] [blame] | 742 | |
Steve Anton | f847081 | 2017-12-04 10:46:21 -0800 | [diff] [blame] | 743 | enum class SessionError { |
| 744 | kNone, // No error. |
| 745 | kContent, // Error in BaseChannel SetLocalContent/SetRemoteContent. |
| 746 | kTransport, // Error from the underlying transport. |
| 747 | }; |
| 748 | |
Steve Anton | 75737c0 | 2017-11-06 10:37:17 -0800 | [diff] [blame] | 749 | // Returns the last error in the session. See the enum above for details. |
Steve Anton | f847081 | 2017-12-04 10:46:21 -0800 | [diff] [blame] | 750 | SessionError session_error() const { return session_error_; } |
| 751 | const std::string& session_error_desc() const { return session_error_desc_; } |
Steve Anton | 75737c0 | 2017-11-06 10:37:17 -0800 | [diff] [blame] | 752 | |
Amit Hilbuch | dd9390c | 2018-11-13 16:26:05 -0800 | [diff] [blame] | 753 | cricket::ChannelInterface* GetChannel(const std::string& content_name); |
Steve Anton | 75737c0 | 2017-11-06 10:37:17 -0800 | [diff] [blame] | 754 | |
| 755 | // Get current SSL role used by SCTP's underlying transport. |
| 756 | bool GetSctpSslRole(rtc::SSLRole* role); |
| 757 | |
Steve Anton | 75737c0 | 2017-11-06 10:37:17 -0800 | [diff] [blame] | 758 | cricket::IceConfig ParseIceConfig( |
| 759 | const PeerConnectionInterface::RTCConfiguration& config) const; |
| 760 | |
Steve Anton | 75737c0 | 2017-11-06 10:37:17 -0800 | [diff] [blame] | 761 | // Implements DataChannelProviderInterface. |
| 762 | bool SendData(const cricket::SendDataParams& params, |
| 763 | const rtc::CopyOnWriteBuffer& payload, |
| 764 | cricket::SendDataResult* result) override; |
| 765 | bool ConnectDataChannel(DataChannel* webrtc_data_channel) override; |
| 766 | void DisconnectDataChannel(DataChannel* webrtc_data_channel) override; |
| 767 | void AddSctpDataStream(int sid) override; |
| 768 | void RemoveSctpDataStream(int sid) override; |
| 769 | bool ReadyToSendData() const override; |
| 770 | |
| 771 | cricket::DataChannelType data_channel_type() const; |
| 772 | |
Bjorn Mellem | 175aa2e | 2018-11-08 11:23:22 -0800 | [diff] [blame] | 773 | // Implements DataChannelSink. |
| 774 | void OnDataReceived(int channel_id, |
| 775 | DataMessageType type, |
| 776 | const rtc::CopyOnWriteBuffer& buffer) override; |
| 777 | void OnChannelClosing(int channel_id) override; |
| 778 | void OnChannelClosed(int channel_id) override; |
| 779 | |
Steve Anton | 75737c0 | 2017-11-06 10:37:17 -0800 | [diff] [blame] | 780 | // Called when an RTCCertificate is generated or retrieved by |
| 781 | // WebRTCSessionDescriptionFactory. Should happen before setLocalDescription. |
| 782 | void OnCertificateReady( |
| 783 | const rtc::scoped_refptr<rtc::RTCCertificate>& certificate); |
| 784 | void OnDtlsSrtpSetupFailure(cricket::BaseChannel*, bool rtcp); |
| 785 | |
Steve Anton | 75737c0 | 2017-11-06 10:37:17 -0800 | [diff] [blame] | 786 | // Non-const versions of local_description()/remote_description(), for use |
| 787 | // internally. |
| 788 | SessionDescriptionInterface* mutable_local_description() { |
| 789 | return pending_local_description_ ? pending_local_description_.get() |
| 790 | : current_local_description_.get(); |
| 791 | } |
| 792 | SessionDescriptionInterface* mutable_remote_description() { |
| 793 | return pending_remote_description_ ? pending_remote_description_.get() |
| 794 | : current_remote_description_.get(); |
| 795 | } |
| 796 | |
| 797 | // Updates the error state, signaling if necessary. |
Steve Anton | f847081 | 2017-12-04 10:46:21 -0800 | [diff] [blame] | 798 | void SetSessionError(SessionError error, const std::string& error_desc); |
Steve Anton | 75737c0 | 2017-11-06 10:37:17 -0800 | [diff] [blame] | 799 | |
Zhi Huang | e830e68 | 2018-03-30 10:48:35 -0700 | [diff] [blame] | 800 | RTCError UpdateSessionState(SdpType type, |
| 801 | cricket::ContentSource source, |
| 802 | const cricket::SessionDescription* description); |
Steve Anton | 75737c0 | 2017-11-06 10:37:17 -0800 | [diff] [blame] | 803 | // Push the media parts of the local or remote session description |
| 804 | // down to all of the channels. |
Steve Anton | 3828c06 | 2017-12-06 10:34:51 -0800 | [diff] [blame] | 805 | RTCError PushdownMediaDescription(SdpType type, |
Steve Anton | 8a00691 | 2017-12-04 15:25:56 -0800 | [diff] [blame] | 806 | cricket::ContentSource source); |
Steve Anton | 75737c0 | 2017-11-06 10:37:17 -0800 | [diff] [blame] | 807 | bool PushdownSctpParameters_n(cricket::ContentSource source); |
| 808 | |
Steve Anton | 8a00691 | 2017-12-04 15:25:56 -0800 | [diff] [blame] | 809 | RTCError PushdownTransportDescription(cricket::ContentSource source, |
Steve Anton | 3828c06 | 2017-12-06 10:34:51 -0800 | [diff] [blame] | 810 | SdpType type); |
Steve Anton | 75737c0 | 2017-11-06 10:37:17 -0800 | [diff] [blame] | 811 | |
| 812 | // Returns true and the TransportInfo of the given |content_name| |
| 813 | // from |description|. Returns false if it's not available. |
| 814 | static bool GetTransportDescription( |
| 815 | const cricket::SessionDescription* description, |
| 816 | const std::string& content_name, |
| 817 | cricket::TransportDescription* info); |
| 818 | |
Steve Anton | 75737c0 | 2017-11-06 10:37:17 -0800 | [diff] [blame] | 819 | // Enables media channels to allow sending of media. |
Steve Anton | ed10bd9 | 2017-12-05 10:52:59 -0800 | [diff] [blame] | 820 | // This enables media to flow on all configured audio/video channels and the |
| 821 | // RtpDataChannel. |
| 822 | void EnableSending(); |
Steve Anton | 3fe1b15 | 2017-12-12 10:20:08 -0800 | [diff] [blame] | 823 | |
Steve Anton | 8af2186 | 2017-12-15 11:20:13 -0800 | [diff] [blame] | 824 | // Destroys all BaseChannels and destroys the SCTP data channel, if present. |
| 825 | void DestroyAllChannels(); |
Steve Anton | 3fe1b15 | 2017-12-12 10:20:08 -0800 | [diff] [blame] | 826 | |
Steve Anton | 75737c0 | 2017-11-06 10:37:17 -0800 | [diff] [blame] | 827 | // Returns the media index for a local ice candidate given the content name. |
| 828 | // Returns false if the local session description does not have a media |
| 829 | // content called |content_name|. |
| 830 | bool GetLocalCandidateMediaIndex(const std::string& content_name, |
| 831 | int* sdp_mline_index); |
| 832 | // Uses all remote candidates in |remote_desc| in this session. |
| 833 | bool UseCandidatesInSessionDescription( |
| 834 | const SessionDescriptionInterface* remote_desc); |
| 835 | // Uses |candidate| in this session. |
| 836 | bool UseCandidate(const IceCandidateInterface* candidate); |
| 837 | // Deletes the corresponding channel of contents that don't exist in |desc|. |
| 838 | // |desc| can be null. This means that all channels are deleted. |
| 839 | void RemoveUnusedChannels(const cricket::SessionDescription* desc); |
| 840 | |
| 841 | // Allocates media channels based on the |desc|. If |desc| doesn't have |
| 842 | // the BUNDLE option, this method will disable BUNDLE in PortAllocator. |
| 843 | // This method will also delete any existing media channels before creating. |
Steve Anton | dcc3c02 | 2017-12-22 16:02:54 -0800 | [diff] [blame] | 844 | RTCError CreateChannels(const cricket::SessionDescription& desc); |
| 845 | |
| 846 | // If the BUNDLE policy is max-bundle, then we know for sure that all |
| 847 | // transports will be bundled from the start. This method returns the BUNDLE |
| 848 | // group if that's the case, or null if BUNDLE will be negotiated later. An |
| 849 | // error is returned if max-bundle is specified but the session description |
| 850 | // does not have a BUNDLE group. |
| 851 | RTCErrorOr<const cricket::ContentGroup*> GetEarlyBundleGroup( |
| 852 | const cricket::SessionDescription& desc) const; |
Steve Anton | 75737c0 | 2017-11-06 10:37:17 -0800 | [diff] [blame] | 853 | |
| 854 | // Helper methods to create media channels. |
Zhi Huang | e830e68 | 2018-03-30 10:48:35 -0700 | [diff] [blame] | 855 | cricket::VoiceChannel* CreateVoiceChannel(const std::string& mid); |
| 856 | cricket::VideoChannel* CreateVideoChannel(const std::string& mid); |
| 857 | bool CreateDataChannel(const std::string& mid); |
Steve Anton | 75737c0 | 2017-11-06 10:37:17 -0800 | [diff] [blame] | 858 | |
Zhi Huang | e830e68 | 2018-03-30 10:48:35 -0700 | [diff] [blame] | 859 | bool CreateSctpTransport_n(const std::string& mid); |
Steve Anton | 75737c0 | 2017-11-06 10:37:17 -0800 | [diff] [blame] | 860 | // For bundling. |
Steve Anton | 75737c0 | 2017-11-06 10:37:17 -0800 | [diff] [blame] | 861 | void DestroySctpTransport_n(); |
| 862 | // SctpTransport signal handlers. Needed to marshal signals from the network |
| 863 | // to signaling thread. |
| 864 | void OnSctpTransportReadyToSendData_n(); |
| 865 | // This may be called with "false" if the direction of the m= section causes |
| 866 | // us to tear down the SCTP connection. |
| 867 | void OnSctpTransportReadyToSendData_s(bool ready); |
| 868 | void OnSctpTransportDataReceived_n(const cricket::ReceiveDataParams& params, |
| 869 | const rtc::CopyOnWriteBuffer& payload); |
| 870 | // Beyond just firing the signal to the signaling thread, listens to SCTP |
| 871 | // CONTROL messages on unused SIDs and processes them as OPEN messages. |
| 872 | void OnSctpTransportDataReceived_s(const cricket::ReceiveDataParams& params, |
| 873 | const rtc::CopyOnWriteBuffer& payload); |
Taylor Brandstetter | cdd05f0 | 2018-05-31 13:23:32 -0700 | [diff] [blame] | 874 | void OnSctpClosingProcedureStartedRemotely_n(int sid); |
| 875 | void OnSctpClosingProcedureComplete_n(int sid); |
Steve Anton | 75737c0 | 2017-11-06 10:37:17 -0800 | [diff] [blame] | 876 | |
Bjorn Mellem | 175aa2e | 2018-11-08 11:23:22 -0800 | [diff] [blame] | 877 | bool SetupMediaTransportForDataChannels_n(const std::string& mid) |
| 878 | RTC_RUN_ON(network_thread()); |
| 879 | void OnMediaTransportStateChanged_n() RTC_RUN_ON(network_thread()); |
| 880 | void TeardownMediaTransportForDataChannels_n() RTC_RUN_ON(network_thread()); |
| 881 | |
Steve Anton | 75737c0 | 2017-11-06 10:37:17 -0800 | [diff] [blame] | 882 | bool ValidateBundleSettings(const cricket::SessionDescription* desc); |
| 883 | bool HasRtcpMuxEnabled(const cricket::ContentInfo* content); |
| 884 | // Below methods are helper methods which verifies SDP. |
Steve Anton | 8a00691 | 2017-12-04 15:25:56 -0800 | [diff] [blame] | 885 | RTCError ValidateSessionDescription(const SessionDescriptionInterface* sdesc, |
| 886 | cricket::ContentSource source); |
Steve Anton | 75737c0 | 2017-11-06 10:37:17 -0800 | [diff] [blame] | 887 | |
Steve Anton | 3828c06 | 2017-12-06 10:34:51 -0800 | [diff] [blame] | 888 | // Check if a call to SetLocalDescription is acceptable with a session |
| 889 | // description of the given type. |
| 890 | bool ExpectSetLocalDescription(SdpType type); |
| 891 | // Check if a call to SetRemoteDescription is acceptable with a session |
| 892 | // description of the given type. |
| 893 | bool ExpectSetRemoteDescription(SdpType type); |
Steve Anton | 75737c0 | 2017-11-06 10:37:17 -0800 | [diff] [blame] | 894 | // Verifies a=setup attribute as per RFC 5763. |
| 895 | bool ValidateDtlsSetupAttribute(const cricket::SessionDescription* desc, |
Steve Anton | 3828c06 | 2017-12-06 10:34:51 -0800 | [diff] [blame] | 896 | SdpType type); |
Steve Anton | 75737c0 | 2017-11-06 10:37:17 -0800 | [diff] [blame] | 897 | |
| 898 | // Returns true if we are ready to push down the remote candidate. |
| 899 | // |remote_desc| is the new remote description, or NULL if the current remote |
| 900 | // description should be used. Output |valid| is true if the candidate media |
| 901 | // index is valid. |
| 902 | bool ReadyToUseRemoteCandidate(const IceCandidateInterface* candidate, |
| 903 | const SessionDescriptionInterface* remote_desc, |
| 904 | bool* valid); |
| 905 | |
| 906 | // Returns true if SRTP (either using DTLS-SRTP or SDES) is required by |
| 907 | // this session. |
| 908 | bool SrtpRequired() const; |
| 909 | |
Zhi Huang | e830e68 | 2018-03-30 10:48:35 -0700 | [diff] [blame] | 910 | // JsepTransportController signal handlers. |
Alex Loiko | 9289eda | 2018-11-23 16:18:59 +0000 | [diff] [blame] | 911 | void OnTransportControllerConnectionState(cricket::IceConnectionState state); |
Steve Anton | 75737c0 | 2017-11-06 10:37:17 -0800 | [diff] [blame] | 912 | void OnTransportControllerGatheringState(cricket::IceGatheringState state); |
| 913 | void OnTransportControllerCandidatesGathered( |
| 914 | const std::string& transport_name, |
| 915 | const std::vector<cricket::Candidate>& candidates); |
| 916 | void OnTransportControllerCandidatesRemoved( |
| 917 | const std::vector<cricket::Candidate>& candidates); |
| 918 | void OnTransportControllerDtlsHandshakeError(rtc::SSLHandshakeError error); |
| 919 | |
Steve Anton | f847081 | 2017-12-04 10:46:21 -0800 | [diff] [blame] | 920 | const char* SessionErrorToString(SessionError error) const; |
Steve Anton | 75737c0 | 2017-11-06 10:37:17 -0800 | [diff] [blame] | 921 | std::string GetSessionErrorMsg(); |
| 922 | |
Steve Anton | 8e20f17 | 2018-03-06 10:55:04 -0800 | [diff] [blame] | 923 | // Report the UMA metric SdpFormatReceived for the given remote offer. |
| 924 | void ReportSdpFormatReceived(const SessionDescriptionInterface& remote_offer); |
| 925 | |
Steve Anton | 0ffaaa2 | 2018-02-23 10:31:30 -0800 | [diff] [blame] | 926 | // Report inferred negotiated SDP semantics from a local/remote answer to the |
| 927 | // UMA observer. |
| 928 | void ReportNegotiatedSdpSemantics(const SessionDescriptionInterface& answer); |
| 929 | |
Steve Anton | 75737c0 | 2017-11-06 10:37:17 -0800 | [diff] [blame] | 930 | // Invoked when TransportController connection completion is signaled. |
| 931 | // Reports stats for all transports in use. |
| 932 | void ReportTransportStats(); |
| 933 | |
| 934 | // Gather the usage of IPv4/IPv6 as best connection. |
| 935 | void ReportBestConnectionState(const cricket::TransportStats& stats); |
| 936 | |
Steve Anton | c7b964c | 2018-02-01 14:39:45 -0800 | [diff] [blame] | 937 | void ReportNegotiatedCiphers(const cricket::TransportStats& stats, |
| 938 | const std::set<cricket::MediaType>& media_types); |
Steve Anton | 75737c0 | 2017-11-06 10:37:17 -0800 | [diff] [blame] | 939 | |
Harald Alvestrand | 8ebba74 | 2018-05-31 14:00:34 +0200 | [diff] [blame] | 940 | void NoteUsageEvent(UsageEvent event); |
| 941 | void ReportUsagePattern() const; |
| 942 | |
Steve Anton | 75737c0 | 2017-11-06 10:37:17 -0800 | [diff] [blame] | 943 | void OnSentPacket_w(const rtc::SentPacket& sent_packet); |
| 944 | |
| 945 | const std::string GetTransportName(const std::string& content_name); |
| 946 | |
Steve Anton | 6fec880 | 2017-12-04 10:37:29 -0800 | [diff] [blame] | 947 | // Destroys and clears the BaseChannel associated with the given transceiver, |
| 948 | // if such channel is set. |
| 949 | void DestroyTransceiverChannel( |
| 950 | rtc::scoped_refptr<RtpTransceiverProxyWithInternal<RtpTransceiver>> |
| 951 | transceiver); |
| 952 | |
| 953 | // Destroys the RTP data channel and/or the SCTP data channel and clears it. |
Steve Anton | 75737c0 | 2017-11-06 10:37:17 -0800 | [diff] [blame] | 954 | void DestroyDataChannel(); |
| 955 | |
Amit Hilbuch | dd9390c | 2018-11-13 16:26:05 -0800 | [diff] [blame] | 956 | // Destroys the given ChannelInterface. |
| 957 | // The channel cannot be accessed after this method is called. |
| 958 | void DestroyChannelInterface(cricket::ChannelInterface* channel); |
Steve Anton | 6fec880 | 2017-12-04 10:37:29 -0800 | [diff] [blame] | 959 | |
Zhi Huang | 365381f | 2018-04-13 16:44:34 -0700 | [diff] [blame] | 960 | // JsepTransportController::Observer override. |
Taylor Brandstetter | cbaa254 | 2018-04-16 16:42:14 -0700 | [diff] [blame] | 961 | // |
| 962 | // Called by |transport_controller_| when processing transport information |
| 963 | // from a session description, and the mapping from m= sections to transports |
| 964 | // changed (as a result of BUNDLE negotiation, or m= sections being |
| 965 | // rejected). |
Piotr (Peter) Slatala | cc8e8bb | 2018-11-15 08:26:19 -0800 | [diff] [blame] | 966 | bool OnTransportChanged(const std::string& mid, |
| 967 | RtpTransportInternal* rtp_transport, |
| 968 | cricket::DtlsTransportInternal* dtls_transport, |
| 969 | MediaTransportInterface* media_transport) override; |
Zhi Huang | e830e68 | 2018-03-30 10:48:35 -0700 | [diff] [blame] | 970 | |
Harald Alvestrand | 7a1c7f7 | 2018-08-01 10:50:16 +0200 | [diff] [blame] | 971 | // Returns the observer. Will crash on CHECK if the observer is removed. |
| 972 | PeerConnectionObserver* Observer() const; |
| 973 | |
Benjamin Wright | 8c27cca | 2018-10-25 10:16:44 -0700 | [diff] [blame] | 974 | // Returns the CryptoOptions for this PeerConnection. This will always |
| 975 | // return the RTCConfiguration.crypto_options if set and will only default |
| 976 | // back to the PeerConnectionFactory settings if nothing was set. |
| 977 | CryptoOptions GetCryptoOptions(); |
| 978 | |
Anton Sukhanov | 98a462c | 2018-10-17 13:15:42 -0700 | [diff] [blame] | 979 | // Returns rtp transport, result can not be nullptr. |
| 980 | RtpTransportInternal* GetRtpTransport(const std::string& mid) { |
| 981 | auto rtp_transport = transport_controller_->GetRtpTransport(mid); |
| 982 | RTC_DCHECK(rtp_transport); |
| 983 | return rtp_transport; |
| 984 | } |
| 985 | |
| 986 | // Returns media transport, if PeerConnection was created with configuration |
| 987 | // to use media transport. Otherwise returns nullptr. |
| 988 | MediaTransportInterface* GetMediaTransport(const std::string& mid) { |
| 989 | auto media_transport = transport_controller_->GetMediaTransport(mid); |
Bjorn Mellem | a9bbd86 | 2018-11-02 09:07:48 -0700 | [diff] [blame] | 990 | RTC_DCHECK((configuration_.use_media_transport || |
| 991 | configuration_.use_media_transport_for_data_channels) == |
Piotr (Peter) Slatala | 97fc11f | 2018-10-18 12:57:59 -0700 | [diff] [blame] | 992 | (media_transport != nullptr)) |
| 993 | << "configuration_.use_media_transport=" |
| 994 | << configuration_.use_media_transport |
Bjorn Mellem | a9bbd86 | 2018-11-02 09:07:48 -0700 | [diff] [blame] | 995 | << ", configuration_.use_media_transport_for_data_channels=" |
| 996 | << configuration_.use_media_transport_for_data_channels |
Piotr (Peter) Slatala | 97fc11f | 2018-10-18 12:57:59 -0700 | [diff] [blame] | 997 | << ", (media_transport != nullptr)=" << (media_transport != nullptr); |
Anton Sukhanov | 98a462c | 2018-10-17 13:15:42 -0700 | [diff] [blame] | 998 | return media_transport; |
| 999 | } |
| 1000 | |
Karl Wiberg | 106d92d | 2019-02-14 10:17:47 +0100 | [diff] [blame^] | 1001 | sigslot::signal1<DataChannel*> SignalDataChannelCreated_ |
| 1002 | RTC_GUARDED_BY(signaling_thread()); |
Steve Anton | 2d8609c | 2018-01-23 16:38:46 -0800 | [diff] [blame] | 1003 | |
henrike@webrtc.org | 28e2075 | 2013-07-10 00:45:36 +0000 | [diff] [blame] | 1004 | // Storing the factory as a scoped reference pointer ensures that the memory |
| 1005 | // in the PeerConnectionFactoryImpl remains available as long as the |
| 1006 | // PeerConnection is running. It is passed to PeerConnection as a raw pointer. |
| 1007 | // However, since the reference counting is done in the |
deadbeef | ab9b2d1 | 2015-10-14 11:33:11 -0700 | [diff] [blame] | 1008 | // PeerConnectionFactoryInterface all instances created using the raw pointer |
henrike@webrtc.org | 28e2075 | 2013-07-10 00:45:36 +0000 | [diff] [blame] | 1009 | // will refer to the same reference count. |
buildbot@webrtc.org | d4e598d | 2014-07-29 17:36:52 +0000 | [diff] [blame] | 1010 | rtc::scoped_refptr<PeerConnectionFactory> factory_; |
Steve Anton | ba81867 | 2017-11-06 10:21:57 -0800 | [diff] [blame] | 1011 | PeerConnectionObserver* observer_ = nullptr; |
terelius | 3386025 | 2017-05-12 23:37:18 -0700 | [diff] [blame] | 1012 | |
| 1013 | // The EventLog needs to outlive |call_| (and any other object that uses it). |
| 1014 | std::unique_ptr<RtcEventLog> event_log_; |
| 1015 | |
Steve Anton | ba81867 | 2017-11-06 10:21:57 -0800 | [diff] [blame] | 1016 | SignalingState signaling_state_ = kStable; |
| 1017 | IceConnectionState ice_connection_state_ = kIceConnectionNew; |
Alex Loiko | 9289eda | 2018-11-23 16:18:59 +0000 | [diff] [blame] | 1018 | PeerConnectionInterface::IceConnectionState |
| 1019 | standardized_ice_connection_state_ = kIceConnectionNew; |
Jonas Olsson | 635474e | 2018-10-18 15:58:17 +0200 | [diff] [blame] | 1020 | PeerConnectionInterface::PeerConnectionState connection_state_ = |
| 1021 | PeerConnectionState::kNew; |
| 1022 | |
Steve Anton | ba81867 | 2017-11-06 10:21:57 -0800 | [diff] [blame] | 1023 | IceGatheringState ice_gathering_state_ = kIceGatheringNew; |
deadbeef | 46c7389 | 2016-11-16 19:42:04 -0800 | [diff] [blame] | 1024 | PeerConnectionInterface::RTCConfiguration configuration_; |
henrike@webrtc.org | 28e2075 | 2013-07-10 00:45:36 +0000 | [diff] [blame] | 1025 | |
Zach Stein | e20867f | 2018-08-02 13:20:15 -0700 | [diff] [blame] | 1026 | // TODO(zstein): |async_resolver_factory_| can currently be nullptr if it |
| 1027 | // is not injected. It should be required once chromium supplies it. |
| 1028 | std::unique_ptr<AsyncResolverFactory> async_resolver_factory_; |
kwiberg | d1fe281 | 2016-04-27 06:47:29 -0700 | [diff] [blame] | 1029 | std::unique_ptr<cricket::PortAllocator> port_allocator_; |
Benjamin Wright | d6f86e8 | 2018-05-08 13:12:25 -0700 | [diff] [blame] | 1030 | std::unique_ptr<rtc::SSLCertificateVerifier> tls_cert_verifier_; |
Qingsi Wang | a2d6067 | 2018-04-11 16:57:45 -0700 | [diff] [blame] | 1031 | int port_allocator_flags_ = 0; |
deadbeef | ab9b2d1 | 2015-10-14 11:33:11 -0700 | [diff] [blame] | 1032 | |
zhihuang | 8f65cdf | 2016-05-06 18:40:30 -0700 | [diff] [blame] | 1033 | // One PeerConnection has only one RTCP CNAME. |
| 1034 | // https://tools.ietf.org/html/draft-ietf-rtcweb-rtp-usage-26#section-4.9 |
| 1035 | std::string rtcp_cname_; |
| 1036 | |
deadbeef | ab9b2d1 | 2015-10-14 11:33:11 -0700 | [diff] [blame] | 1037 | // Streams added via AddStream. |
| 1038 | rtc::scoped_refptr<StreamCollection> local_streams_; |
| 1039 | // Streams created as a result of SetRemoteDescription. |
| 1040 | rtc::scoped_refptr<StreamCollection> remote_streams_; |
| 1041 | |
kwiberg | d1fe281 | 2016-04-27 06:47:29 -0700 | [diff] [blame] | 1042 | std::vector<std::unique_ptr<MediaStreamObserver>> stream_observers_; |
deadbeef | eb45981 | 2015-12-15 19:24:43 -0800 | [diff] [blame] | 1043 | |
Steve Anton | 4171afb | 2017-11-20 10:20:22 -0800 | [diff] [blame] | 1044 | // These lists store sender info seen in local/remote descriptions. |
| 1045 | std::vector<RtpSenderInfo> remote_audio_sender_infos_; |
| 1046 | std::vector<RtpSenderInfo> remote_video_sender_infos_; |
| 1047 | std::vector<RtpSenderInfo> local_audio_sender_infos_; |
| 1048 | std::vector<RtpSenderInfo> local_video_sender_infos_; |
deadbeef | ab9b2d1 | 2015-10-14 11:33:11 -0700 | [diff] [blame] | 1049 | |
| 1050 | SctpSidAllocator sid_allocator_; |
| 1051 | // label -> DataChannel |
| 1052 | std::map<std::string, rtc::scoped_refptr<DataChannel>> rtp_data_channels_; |
| 1053 | std::vector<rtc::scoped_refptr<DataChannel>> sctp_data_channels_; |
deadbeef | bd29246 | 2015-12-14 18:15:29 -0800 | [diff] [blame] | 1054 | std::vector<rtc::scoped_refptr<DataChannel>> sctp_data_channels_to_free_; |
deadbeef | ab9b2d1 | 2015-10-14 11:33:11 -0700 | [diff] [blame] | 1055 | |
deadbeef | bda7e0b | 2015-12-08 17:13:40 -0800 | [diff] [blame] | 1056 | bool remote_peer_supports_msid_ = false; |
deadbeef | 70ab1a1 | 2015-09-28 16:53:55 -0700 | [diff] [blame] | 1057 | |
terelius | 3386025 | 2017-05-12 23:37:18 -0700 | [diff] [blame] | 1058 | std::unique_ptr<Call> call_; |
terelius | 3386025 | 2017-05-12 23:37:18 -0700 | [diff] [blame] | 1059 | std::unique_ptr<StatsCollector> stats_; // A pointer is passed to senders_ |
| 1060 | rtc::scoped_refptr<RTCStatsCollector> stats_collector_; |
| 1061 | |
deadbeef | a601f5c | 2016-06-06 14:27:39 -0700 | [diff] [blame] | 1062 | std::vector< |
Steve Anton | 4171afb | 2017-11-20 10:20:22 -0800 | [diff] [blame] | 1063 | rtc::scoped_refptr<RtpTransceiverProxyWithInternal<RtpTransceiver>>> |
| 1064 | transceivers_; |
Henrik Boström | 5b14778 | 2018-12-04 11:25:05 +0100 | [diff] [blame] | 1065 | // In Unified Plan, if we encounter remote SDP that does not contain an a=msid |
| 1066 | // line we create and use a stream with a random ID for our receivers. This is |
| 1067 | // to support legacy endpoints that do not support the a=msid attribute (as |
| 1068 | // opposed to streamless tracks with "a=msid:-"). |
| 1069 | rtc::scoped_refptr<MediaStreamInterface> missing_msid_default_stream_; |
Amit Hilbuch | ae3df54 | 2019-01-07 12:13:08 -0800 | [diff] [blame] | 1070 | // MIDs will be generated using this generator which will keep track of |
| 1071 | // all the MIDs that have been seen over the life of the PeerConnection. |
Amit Hilbuch | dbb49df | 2019-01-23 14:54:24 -0800 | [diff] [blame] | 1072 | rtc::UniqueStringGenerator mid_generator_; |
Steve Anton | 75737c0 | 2017-11-06 10:37:17 -0800 | [diff] [blame] | 1073 | |
Steve Anton | f847081 | 2017-12-04 10:46:21 -0800 | [diff] [blame] | 1074 | SessionError session_error_ = SessionError::kNone; |
| 1075 | std::string session_error_desc_; |
Steve Anton | 75737c0 | 2017-11-06 10:37:17 -0800 | [diff] [blame] | 1076 | |
| 1077 | std::string session_id_; |
Steve Anton | 75737c0 | 2017-11-06 10:37:17 -0800 | [diff] [blame] | 1078 | |
Zhi Huang | e830e68 | 2018-03-30 10:48:35 -0700 | [diff] [blame] | 1079 | std::unique_ptr<JsepTransportController> transport_controller_; |
Steve Anton | 75737c0 | 2017-11-06 10:37:17 -0800 | [diff] [blame] | 1080 | std::unique_ptr<cricket::SctpTransportInternalFactory> sctp_factory_; |
Steve Anton | 75737c0 | 2017-11-06 10:37:17 -0800 | [diff] [blame] | 1081 | // |rtp_data_channel_| is used if in RTP data channel mode, |sctp_transport_| |
| 1082 | // when using SCTP. |
| 1083 | cricket::RtpDataChannel* rtp_data_channel_ = nullptr; |
| 1084 | |
| 1085 | std::unique_ptr<cricket::SctpTransportInternal> sctp_transport_; |
Zhi Huang | e830e68 | 2018-03-30 10:48:35 -0700 | [diff] [blame] | 1086 | // |sctp_mid_| is the content name (MID) in SDP. |
Danil Chapovalov | 66cadcc | 2018-06-19 16:47:43 +0200 | [diff] [blame] | 1087 | absl::optional<std::string> sctp_mid_; |
Steve Anton | 75737c0 | 2017-11-06 10:37:17 -0800 | [diff] [blame] | 1088 | // Value cached on signaling thread. Only updated when SctpReadyToSendData |
| 1089 | // fires on the signaling thread. |
| 1090 | bool sctp_ready_to_send_data_ = false; |
| 1091 | // Same as signals provided by SctpTransport, but these are guaranteed to |
| 1092 | // fire on the signaling thread, whereas SctpTransport fires on the networking |
| 1093 | // thread. |
| 1094 | // |sctp_invoker_| is used so that any signals queued on the signaling thread |
| 1095 | // from the network thread are immediately discarded if the SctpTransport is |
| 1096 | // destroyed (due to m= section being rejected). |
| 1097 | // TODO(deadbeef): Use a proxy object to ensure that method calls/signals |
| 1098 | // are marshalled to the right thread. Could almost use proxy.h for this, |
| 1099 | // but it doesn't have a mechanism for marshalling sigslot::signals |
| 1100 | std::unique_ptr<rtc::AsyncInvoker> sctp_invoker_; |
| 1101 | sigslot::signal1<bool> SignalSctpReadyToSendData; |
| 1102 | sigslot::signal2<const cricket::ReceiveDataParams&, |
| 1103 | const rtc::CopyOnWriteBuffer&> |
| 1104 | SignalSctpDataReceived; |
Taylor Brandstetter | cdd05f0 | 2018-05-31 13:23:32 -0700 | [diff] [blame] | 1105 | sigslot::signal1<int> SignalSctpClosingProcedureStartedRemotely; |
| 1106 | sigslot::signal1<int> SignalSctpClosingProcedureComplete; |
Steve Anton | 75737c0 | 2017-11-06 10:37:17 -0800 | [diff] [blame] | 1107 | |
Bjorn Mellem | 175aa2e | 2018-11-08 11:23:22 -0800 | [diff] [blame] | 1108 | // Whether this peer is the caller. Set when the local description is applied. |
| 1109 | absl::optional<bool> is_caller_ RTC_GUARDED_BY(signaling_thread()); |
| 1110 | |
| 1111 | // Content name (MID) for media transport data channels in SDP. |
| 1112 | absl::optional<std::string> media_transport_data_mid_; |
| 1113 | |
| 1114 | // Media transport used for data channels. Thread-safe. |
| 1115 | MediaTransportInterface* media_transport_ = nullptr; |
| 1116 | |
| 1117 | // Cached value of whether the media transport is ready to send. |
| 1118 | bool media_transport_ready_to_send_data_ RTC_GUARDED_BY(signaling_thread()) = |
| 1119 | false; |
| 1120 | |
| 1121 | // Used to invoke media transport signals on the signaling thread. |
| 1122 | std::unique_ptr<rtc::AsyncInvoker> media_transport_invoker_; |
| 1123 | |
| 1124 | // Identical to the signals for SCTP, but from media transport: |
| 1125 | sigslot::signal1<bool> SignalMediaTransportWritable_s |
| 1126 | RTC_GUARDED_BY(signaling_thread()); |
| 1127 | sigslot::signal2<const cricket::ReceiveDataParams&, |
| 1128 | const rtc::CopyOnWriteBuffer&> |
| 1129 | SignalMediaTransportReceivedData_s RTC_GUARDED_BY(signaling_thread()); |
| 1130 | sigslot::signal1<int> SignalMediaTransportChannelClosing_s |
| 1131 | RTC_GUARDED_BY(signaling_thread()); |
| 1132 | sigslot::signal1<int> SignalMediaTransportChannelClosed_s |
| 1133 | RTC_GUARDED_BY(signaling_thread()); |
| 1134 | |
Steve Anton | 75737c0 | 2017-11-06 10:37:17 -0800 | [diff] [blame] | 1135 | std::unique_ptr<SessionDescriptionInterface> current_local_description_; |
| 1136 | std::unique_ptr<SessionDescriptionInterface> pending_local_description_; |
| 1137 | std::unique_ptr<SessionDescriptionInterface> current_remote_description_; |
| 1138 | std::unique_ptr<SessionDescriptionInterface> pending_remote_description_; |
| 1139 | bool dtls_enabled_ = false; |
| 1140 | // Specifies which kind of data channel is allowed. This is controlled |
| 1141 | // by the chrome command-line flag and constraints: |
| 1142 | // 1. If chrome command-line switch 'enable-sctp-data-channels' is enabled, |
| 1143 | // constraint kEnableDtlsSrtp is true, and constaint kEnableRtpDataChannels is |
| 1144 | // not set or false, SCTP is allowed (DCT_SCTP); |
| 1145 | // 2. If constraint kEnableRtpDataChannels is true, RTP is allowed (DCT_RTP); |
| 1146 | // 3. If both 1&2 are false, data channel is not allowed (DCT_NONE). |
| 1147 | cricket::DataChannelType data_channel_type_ = cricket::DCT_NONE; |
| 1148 | // List of content names for which the remote side triggered an ICE restart. |
| 1149 | std::set<std::string> pending_ice_restarts_; |
| 1150 | |
| 1151 | std::unique_ptr<WebRtcSessionDescriptionFactory> webrtc_session_desc_factory_; |
| 1152 | |
| 1153 | // Member variables for caching global options. |
| 1154 | cricket::AudioOptions audio_options_; |
| 1155 | cricket::VideoOptions video_options_; |
Harald Alvestrand | 8ebba74 | 2018-05-31 14:00:34 +0200 | [diff] [blame] | 1156 | |
| 1157 | int usage_event_accumulator_ = 0; |
Harald Alvestrand | 1979384 | 2018-06-25 12:03:50 +0200 | [diff] [blame] | 1158 | bool return_histogram_very_quickly_ = false; |
Amit Hilbuch | bcd39d4 | 2019-01-25 17:13:56 -0800 | [diff] [blame] | 1159 | |
| 1160 | // This object should be used to generate any SSRC that is not explicitly |
| 1161 | // specified by the user (or by the remote party). |
| 1162 | // The generator is not used directly, instead it is passed on to the |
| 1163 | // channel manager and the session description factory. |
| 1164 | rtc::UniqueRandomIdGenerator ssrc_generator_; |
henrike@webrtc.org | 28e2075 | 2013-07-10 00:45:36 +0000 | [diff] [blame] | 1165 | }; |
| 1166 | |
| 1167 | } // namespace webrtc |
| 1168 | |
Steve Anton | 10542f2 | 2019-01-11 09:11:00 -0800 | [diff] [blame] | 1169 | #endif // PC_PEER_CONNECTION_H_ |