1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
|
/*
* libjingle
* Copyright 2012, Google Inc.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
* EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef TALK_APP_WEBRTC_PEERCONNECTION_H_
#define TALK_APP_WEBRTC_PEERCONNECTION_H_
#include <string>
#include "talk/app/webrtc/mediastreamsignaling.h"
#include "talk/app/webrtc/peerconnectionfactory.h"
#include "talk/app/webrtc/peerconnectioninterface.h"
#include "talk/app/webrtc/statscollector.h"
#include "talk/app/webrtc/streamcollection.h"
#include "talk/app/webrtc/webrtcsession.h"
#include "webrtc/base/scoped_ptr.h"
namespace webrtc {
class MediaStreamHandlerContainer;
typedef std::vector<PortAllocatorFactoryInterface::StunConfiguration>
StunConfigurations;
typedef std::vector<PortAllocatorFactoryInterface::TurnConfiguration>
TurnConfigurations;
// PeerConnectionImpl implements the PeerConnection interface.
// It uses MediaStreamSignaling and WebRtcSession to implement
// the PeerConnection functionality.
class PeerConnection : public PeerConnectionInterface,
public MediaStreamSignalingObserver,
public IceObserver,
public rtc::MessageHandler,
public sigslot::has_slots<> {
public:
explicit PeerConnection(PeerConnectionFactory* factory);
bool Initialize(
const PeerConnectionInterface::RTCConfiguration& configuration,
const MediaConstraintsInterface* constraints,
PortAllocatorFactoryInterface* allocator_factory,
DTLSIdentityServiceInterface* dtls_identity_service,
PeerConnectionObserver* observer);
virtual rtc::scoped_refptr<StreamCollectionInterface> local_streams();
virtual rtc::scoped_refptr<StreamCollectionInterface> remote_streams();
virtual bool AddStream(MediaStreamInterface* local_stream);
virtual void RemoveStream(MediaStreamInterface* local_stream);
virtual rtc::scoped_refptr<DtmfSenderInterface> CreateDtmfSender(
AudioTrackInterface* track);
virtual rtc::scoped_refptr<DataChannelInterface> CreateDataChannel(
const std::string& label,
const DataChannelInit* config);
virtual bool GetStats(StatsObserver* observer,
webrtc::MediaStreamTrackInterface* track,
StatsOutputLevel level);
virtual SignalingState signaling_state();
// TODO(bemasc): Remove ice_state() when callers are removed.
virtual IceState ice_state();
virtual IceConnectionState ice_connection_state();
virtual IceGatheringState ice_gathering_state();
virtual const SessionDescriptionInterface* local_description() const;
virtual const SessionDescriptionInterface* remote_description() const;
// JSEP01
virtual void CreateOffer(CreateSessionDescriptionObserver* observer,
const MediaConstraintsInterface* constraints);
virtual void CreateOffer(CreateSessionDescriptionObserver* observer,
const RTCOfferAnswerOptions& options);
virtual void CreateAnswer(CreateSessionDescriptionObserver* observer,
const MediaConstraintsInterface* constraints);
virtual void SetLocalDescription(SetSessionDescriptionObserver* observer,
SessionDescriptionInterface* desc);
virtual void SetRemoteDescription(SetSessionDescriptionObserver* observer,
SessionDescriptionInterface* desc);
// TODO(mallinath) : Deprecated version, remove after all clients are updated.
virtual bool UpdateIce(const IceServers& configuration,
const MediaConstraintsInterface* constraints);
virtual bool UpdateIce(
const PeerConnectionInterface::RTCConfiguration& config);
virtual bool AddIceCandidate(const IceCandidateInterface* candidate);
virtual void RegisterUMAObserver(UMAObserver* observer);
virtual void Close();
protected:
virtual ~PeerConnection();
private:
// Implements MessageHandler.
virtual void OnMessage(rtc::Message* msg);
// Implements MediaStreamSignalingObserver.
virtual void OnAddRemoteStream(MediaStreamInterface* stream) OVERRIDE;
virtual void OnRemoveRemoteStream(MediaStreamInterface* stream) OVERRIDE;
virtual void OnAddDataChannel(DataChannelInterface* data_channel) OVERRIDE;
virtual void OnAddRemoteAudioTrack(MediaStreamInterface* stream,
AudioTrackInterface* audio_track,
uint32 ssrc) OVERRIDE;
virtual void OnAddRemoteVideoTrack(MediaStreamInterface* stream,
VideoTrackInterface* video_track,
uint32 ssrc) OVERRIDE;
virtual void OnRemoveRemoteAudioTrack(
MediaStreamInterface* stream,
AudioTrackInterface* audio_track) OVERRIDE;
virtual void OnRemoveRemoteVideoTrack(
MediaStreamInterface* stream,
VideoTrackInterface* video_track) OVERRIDE;
virtual void OnAddLocalAudioTrack(MediaStreamInterface* stream,
AudioTrackInterface* audio_track,
uint32 ssrc) OVERRIDE;
virtual void OnAddLocalVideoTrack(MediaStreamInterface* stream,
VideoTrackInterface* video_track,
uint32 ssrc) OVERRIDE;
virtual void OnRemoveLocalAudioTrack(
MediaStreamInterface* stream,
AudioTrackInterface* audio_track,
uint32 ssrc) OVERRIDE;
virtual void OnRemoveLocalVideoTrack(
MediaStreamInterface* stream,
VideoTrackInterface* video_track) OVERRIDE;
virtual void OnRemoveLocalStream(MediaStreamInterface* stream);
// Implements IceObserver
virtual void OnIceConnectionChange(IceConnectionState new_state);
virtual void OnIceGatheringChange(IceGatheringState new_state);
virtual void OnIceCandidate(const IceCandidateInterface* candidate);
virtual void OnIceComplete();
// Signals from WebRtcSession.
void OnSessionStateChange(cricket::BaseSession* session,
cricket::BaseSession::State state);
void ChangeSignalingState(SignalingState signaling_state);
bool DoInitialize(IceTransportsType type,
const StunConfigurations& stun_config,
const TurnConfigurations& turn_config,
const MediaConstraintsInterface* constraints,
PortAllocatorFactoryInterface* allocator_factory,
DTLSIdentityServiceInterface* dtls_identity_service,
PeerConnectionObserver* observer);
rtc::Thread* signaling_thread() const {
return factory_->signaling_thread();
}
void PostSetSessionDescriptionFailure(SetSessionDescriptionObserver* observer,
const std::string& error);
bool IsClosed() const {
return signaling_state_ == PeerConnectionInterface::kClosed;
}
// Storing the factory as a scoped reference pointer ensures that the memory
// in the PeerConnectionFactoryImpl remains available as long as the
// PeerConnection is running. It is passed to PeerConnection as a raw pointer.
// However, since the reference counting is done in the
// PeerConnectionFactoryInteface all instances created using the raw pointer
// will refer to the same reference count.
rtc::scoped_refptr<PeerConnectionFactory> factory_;
PeerConnectionObserver* observer_;
UMAObserver* uma_observer_;
SignalingState signaling_state_;
// TODO(bemasc): Remove ice_state_.
IceState ice_state_;
IceConnectionState ice_connection_state_;
IceGatheringState ice_gathering_state_;
rtc::scoped_ptr<cricket::PortAllocator> port_allocator_;
rtc::scoped_ptr<WebRtcSession> session_;
rtc::scoped_ptr<MediaStreamSignaling> mediastream_signaling_;
rtc::scoped_ptr<MediaStreamHandlerContainer> stream_handler_container_;
rtc::scoped_ptr<StatsCollector> stats_;
};
} // namespace webrtc
#endif // TALK_APP_WEBRTC_PEERCONNECTION_H_
|
