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| 1 // Copyright (c) 2011 The Chromium Authors. All rights reserved. |
| 2 // Use of this source code is governed by a BSD-style license that can be |
| 3 // found in the LICENSE file. |
| 4 |
| 5 #include "content/renderer/media/peer_connection_handler.h" |
| 6 |
| 7 #include "base/bind.h" |
| 8 #include "base/logging.h" |
| 9 #include "base/utf_string_conversions.h" |
| 10 #include "content/renderer/media/media_stream_dependency_factory.h" |
| 11 #include "content/renderer/media/media_stream_impl.h" |
| 12 #include "third_party/libjingle/source/talk/base/thread.h" |
| 13 #include "third_party/WebKit/Source/WebKit/chromium/public/WebMediaStreamDescrip
tor.h" |
| 14 #include "third_party/WebKit/Source/WebKit/chromium/public/WebMediaStreamSource.
h" |
| 15 #include "third_party/WebKit/Source/WebKit/chromium/public/WebPeerConnectionHand
lerClient.h" |
| 16 #include "third_party/WebKit/Source/WebKit/chromium/public/WebVector.h" |
| 17 |
| 18 PeerConnectionHandler::PeerConnectionHandler( |
| 19 WebKit::WebPeerConnectionHandlerClient* client, |
| 20 MediaStreamImpl* msi, |
| 21 MediaStreamDependencyFactory* dependency_factory, |
| 22 talk_base::Thread* signaling_thread) |
| 23 : client_(client), |
| 24 media_stream_impl_(msi), |
| 25 dependency_factory_(dependency_factory), |
| 26 message_loop_proxy_(base::MessageLoopProxy::current()), |
| 27 signaling_thread_(signaling_thread), |
| 28 call_state_(NOT_STARTED) { |
| 29 } |
| 30 |
| 31 PeerConnectionHandler::~PeerConnectionHandler() { |
| 32 if (native_peer_connection_.get()) { |
| 33 native_peer_connection_->RegisterObserver(NULL); |
| 34 native_peer_connection_->Close(); |
| 35 } |
| 36 } |
| 37 |
| 38 bool PeerConnectionHandler::SetVideoRenderer( |
| 39 const std::string& stream_label, |
| 40 cricket::VideoRenderer* renderer) { |
| 41 return native_peer_connection_->SetVideoRenderer(stream_label, renderer); |
| 42 } |
| 43 |
| 44 void PeerConnectionHandler::initialize( |
| 45 const WebKit::WebString& server_configuration, |
| 46 const WebKit::WebSecurityOrigin& security_origin) { |
| 47 native_peer_connection_.reset(dependency_factory_->CreatePeerConnection( |
| 48 signaling_thread_)); |
| 49 native_peer_connection_->RegisterObserver(this); |
| 50 } |
| 51 |
| 52 void PeerConnectionHandler::produceInitialOffer( |
| 53 const WebKit::WebVector<WebKit::WebMediaStreamDescriptor>& |
| 54 pending_add_streams) { |
| 55 // We currently don't support creating an initial offer without a stream. |
| 56 // Native PeerConnection will anyway create the initial offer when the first |
| 57 // (and only) stream is added, so it will be done when processPendingStreams |
| 58 // is called if not here. |
| 59 if (pending_add_streams.isEmpty()) { |
| 60 DVLOG(1) << "Can't produce initial offer with no stream."; |
| 61 return; |
| 62 } |
| 63 // TODO(grunell): Support several streams. |
| 64 DCHECK_EQ(pending_add_streams.size(), static_cast<size_t>(1)); |
| 65 AddStream(UTF16ToUTF8(pending_add_streams[0].label())); |
| 66 } |
| 67 |
| 68 void PeerConnectionHandler::handleInitialOffer(const WebKit::WebString& sdp) { |
| 69 native_peer_connection_->SignalingMessage(UTF16ToUTF8(sdp)); |
| 70 } |
| 71 |
| 72 void PeerConnectionHandler::processSDP(const WebKit::WebString& sdp) { |
| 73 native_peer_connection_->SignalingMessage(UTF16ToUTF8(sdp)); |
| 74 } |
| 75 |
| 76 void PeerConnectionHandler::processPendingStreams( |
| 77 const WebKit::WebVector<WebKit::WebMediaStreamDescriptor>& |
| 78 pending_add_streams, |
| 79 const WebKit::WebVector<WebKit::WebMediaStreamDescriptor>& |
| 80 pending_remove_streams) { |
| 81 // TODO(grunell): Support several streams. |
| 82 if (!pending_add_streams.isEmpty()) { |
| 83 DCHECK_EQ(pending_add_streams.size(), static_cast<size_t>(1)); |
| 84 AddStream(UTF16ToUTF8(pending_add_streams[0].label())); |
| 85 } |
| 86 // Currently we ignore remove stream, no support in native PeerConnection. |
| 87 } |
| 88 |
| 89 void PeerConnectionHandler::sendDataStreamMessage( |
| 90 const char* data, |
| 91 size_t length) { |
| 92 // TODO(grunell): Implement. Not supported in native PeerConnection. |
| 93 NOTIMPLEMENTED(); |
| 94 } |
| 95 |
| 96 void PeerConnectionHandler::stop() { |
| 97 if (native_peer_connection_.get()) |
| 98 native_peer_connection_->RegisterObserver(NULL); |
| 99 native_peer_connection_.reset(); |
| 100 // The close function will delete us. |
| 101 media_stream_impl_->ClosePeerConnection(); |
| 102 } |
| 103 |
| 104 // TODO(grunell): Check usage of |
| 105 // WebPeerConnectionHandlerClient::didCompleteICEProcessing. Do we need to call |
| 106 // it? |
| 107 |
| 108 void PeerConnectionHandler::OnSignalingMessage(const std::string& msg) { |
| 109 if (!message_loop_proxy_->BelongsToCurrentThread()) { |
| 110 message_loop_proxy_->PostTask(FROM_HERE, base::Bind( |
| 111 &PeerConnectionHandler::OnSignalingMessage, |
| 112 base::Unretained(this), |
| 113 msg)); |
| 114 return; |
| 115 } |
| 116 client_->didGenerateSDP(UTF8ToUTF16(msg)); |
| 117 } |
| 118 |
| 119 void PeerConnectionHandler::OnAddStream(const std::string& stream_id, |
| 120 bool video) { |
| 121 if (!video) |
| 122 return; |
| 123 |
| 124 if (!message_loop_proxy_->BelongsToCurrentThread()) { |
| 125 message_loop_proxy_->PostTask(FROM_HERE, base::Bind( |
| 126 &PeerConnectionHandler::OnAddStreamCallback, |
| 127 base::Unretained(this), |
| 128 stream_id)); |
| 129 } else { |
| 130 OnAddStreamCallback(stream_id); |
| 131 } |
| 132 } |
| 133 |
| 134 void PeerConnectionHandler::OnRemoveStream( |
| 135 const std::string& stream_id, |
| 136 bool video) { |
| 137 if (!video) |
| 138 return; |
| 139 |
| 140 if (!message_loop_proxy_->BelongsToCurrentThread()) { |
| 141 message_loop_proxy_->PostTask(FROM_HERE, base::Bind( |
| 142 &PeerConnectionHandler::OnRemoveStreamCallback, |
| 143 base::Unretained(this), |
| 144 remote_label_)); |
| 145 } else { |
| 146 OnRemoveStreamCallback(remote_label_); |
| 147 } |
| 148 } |
| 149 |
| 150 void PeerConnectionHandler::AddStream(const std::string label) { |
| 151 // TODO(grunell): Fix code in this function after a new native PeerConnection |
| 152 // version has been rolled out. |
| 153 if (call_state_ == NOT_STARTED) { |
| 154 // TODO(grunell): Add audio and/or video depending on what's enabled |
| 155 // in the stream. |
| 156 std::string audio_label = label; |
| 157 audio_label.append("-audio"); |
| 158 native_peer_connection_->AddStream(audio_label, false); // Audio |
| 159 native_peer_connection_->AddStream(label, true); // Video |
| 160 call_state_ = INITIATING; |
| 161 } |
| 162 if (call_state_ == INITIATING || call_state_ == RECEIVING) { |
| 163 local_label_ = label; |
| 164 if (media_stream_impl_->SetVideoCaptureModule(label)) |
| 165 native_peer_connection_->SetVideoCapture(""); |
| 166 if (call_state_ == INITIATING) |
| 167 native_peer_connection_->Connect(); |
| 168 else if (call_state_ == RECEIVING) |
| 169 call_state_ = SENDING_AND_RECEIVING; |
| 170 } else { |
| 171 DLOG(ERROR) << "Multiple streams not supported"; |
| 172 } |
| 173 } |
| 174 |
| 175 void PeerConnectionHandler::OnAddStreamCallback( |
| 176 const std::string& stream_label) { |
| 177 // TODO(grunell): Fix code in this function after a new native PeerConnection |
| 178 // version has been rolled out. |
| 179 if (call_state_ == NOT_STARTED) { |
| 180 remote_label_ = stream_label; |
| 181 call_state_ = RECEIVING; |
| 182 } else if (call_state_ == INITIATING) { |
| 183 remote_label_ = local_label_; |
| 184 remote_label_ += "-remote"; |
| 185 call_state_ = SENDING_AND_RECEIVING; |
| 186 } |
| 187 |
| 188 // TODO(grunell): Support several tracks. |
| 189 // TODO(grunell): One for audio and one for video? |
| 190 WebKit::WebVector<WebKit::WebMediaStreamSource> |
| 191 source_vector(static_cast<size_t>(1)); |
| 192 source_vector[0].initialize(WebKit::WebString::fromUTF8(""), |
| 193 WebKit::WebMediaStreamSource::TypeVideo, |
| 194 WebKit::WebString::fromUTF8(remote_label_)); |
| 195 WebKit::WebMediaStreamDescriptor descriptor; |
| 196 descriptor.initialize(UTF8ToUTF16(remote_label_), source_vector); |
| 197 client_->didAddRemoteStream(descriptor); |
| 198 } |
| 199 |
| 200 void PeerConnectionHandler::OnRemoveStreamCallback( |
| 201 const std::string& stream_label) { |
| 202 // TODO(grunell): Support several tracks. |
| 203 // TODO(grunell): One for audio and one for video? |
| 204 WebKit::WebVector<WebKit::WebMediaStreamSource> source_vector( |
| 205 static_cast<size_t>(1)); |
| 206 source_vector[0].initialize(WebKit::WebString::fromUTF8(""), |
| 207 WebKit::WebMediaStreamSource::TypeVideo, |
| 208 WebKit::WebString::fromUTF8(stream_label)); |
| 209 WebKit::WebMediaStreamDescriptor descriptor; |
| 210 descriptor.initialize(UTF8ToUTF16(stream_label), source_vector); |
| 211 client_->didRemoveRemoteStream(descriptor); |
| 212 } |
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