251 lines
8.8 KiB
C++
251 lines
8.8 KiB
C++
/*
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* libjingle
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* Copyright 2004--2011, Google Inc.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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* 3. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
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* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
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* EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
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* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
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* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
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* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef TALK_APP_WEBRTC_WEBRTCSESSIONIMPL_H_
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#define TALK_APP_WEBRTC_WEBRTCSESSIONIMPL_H_
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#include <string>
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#include <vector>
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#include "talk/base/messagehandler.h"
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#include "talk/p2p/base/candidate.h"
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#include "talk/session/phone/channel.h"
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#include "talk/session/phone/mediachannel.h"
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#include "talk/app/pc_transport_impl.h"
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#include "talk/app/webrtcsession.h"
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namespace cricket {
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class ChannelManager;
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class Transport;
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class TransportChannel;
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class VoiceChannel;
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class VideoChannel;
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struct ConnectionInfo;
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}
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namespace Json {
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class Value;
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}
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namespace webrtc {
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struct StreamInfo {
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StreamInfo(const std::string stream_id)
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: channel(NULL),
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transport(NULL),
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video(false),
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stream_id(stream_id),
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media_channel(-1) {}
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StreamInfo()
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: channel(NULL),
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transport(NULL),
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video(false),
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media_channel(-1) {}
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cricket::BaseChannel* channel;
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PC_Transport_Impl* transport; //TODO - add RTCP transport channel
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bool video;
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std::string stream_id;
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int media_channel;
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};
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typedef std::vector<cricket::AudioCodec> AudioCodecs;
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typedef std::vector<cricket::VideoCodec> VideoCodecs;
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class ExternalRenderer;
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class PeerConnection;
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class WebRtcChannelManager;
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class WebRTCSessionImpl: public WebRTCSession {
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public:
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WebRTCSessionImpl(const std::string& id,
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const std::string& direction,
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cricket::PortAllocator* allocator,
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WebRtcChannelManager* channelmgr,
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PeerConnection* connection,
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talk_base::Thread* signaling_thread);
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~WebRTCSessionImpl();
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virtual bool Initiate();
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virtual bool OnRemoteDescription(Json::Value& desc);
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virtual bool OnRemoteDescription(const cricket::SessionDescription* sdp,
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std::vector<cricket::Candidate>& candidates);
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virtual bool OnInitiateMessage(const cricket::SessionDescription* sdp,
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std::vector<cricket::Candidate>& candidates);
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virtual void OnMute(bool mute);
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virtual void OnCameraMute(bool mute);
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// Override from BaseSession to allow setting errors from other threads
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// than the signaling thread.
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virtual void SetError(Error error);
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bool muted() const { return muted_; }
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bool camera_muted() const { return camera_muted_; }
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bool CreateP2PTransportChannel(const std::string& stream_id, bool video);
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bool CreateVoiceChannel(const std::string& stream_id);
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bool CreateVideoChannel(const std::string& stream_id);
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bool RemoveStream(const std::string& stream_id);
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void RemoveAllStreams();
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// Returns true if we have either a voice or video stream matching this label.
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bool HasStream(const std::string& label) const;
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bool HasStream(bool video) const;
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// Returns true if there's one or more audio channels in the session.
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bool HasAudioStream() const;
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// Returns true if there's one or more video channels in the session.
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bool HasVideoStream() const;
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void OnCandidateReady(const cricket::Candidate& candidate);
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void OnStateChange(P2PTransportClass::State state,
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cricket::TransportChannel* channel);
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void OnMessageReceived(const char* data, size_t data_size);
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bool SetVideoRenderer(const std::string& stream_id,
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ExternalRenderer* external_renderer);
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bool SetVideoRenderer(int channel_id,
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void* window,
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unsigned int zOrder,
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float left,
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float top,
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float right,
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float bottom);
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sigslot::signal2<cricket::VideoChannel*, std::string&> SignalVideoChannel;
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sigslot::signal2<cricket::VoiceChannel*, std::string&> SignalVoiceChannel;
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sigslot::signal1<WebRTCSessionImpl*> SignalOnRemoveStream;
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void OnVoiceChannelCreated(cricket::VoiceChannel* voice_channel,
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std::string& stream_id);
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void OnVideoChannelCreated(cricket::VideoChannel* video_channel,
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std::string& stream_id);
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void ChannelEnable(cricket::BaseChannel* channel, bool enable);
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std::vector<cricket::Candidate>& local_candidates() {
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return local_candidates_;
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}
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private:
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bool SetVideoRenderer_w(int channel_id,
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void* window,
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unsigned int zOrder,
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float left,
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float top,
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float right,
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float bottom);
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void ChannelEnable_w(cricket::BaseChannel* channel, bool enable);
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void OnVoiceChannelError(cricket::VoiceChannel* voice_channel, uint32 ssrc,
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cricket::VoiceMediaChannel::Error error);
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void OnVideoChannelError(cricket::VideoChannel* video_channel, uint32 ssrc,
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cricket::VideoMediaChannel::Error error);
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// methods signaled by the transport
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void OnRequestSignaling(cricket::Transport* transport);
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void OnCandidatesReady(cricket::Transport* transport,
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const std::vector<cricket::Candidate>& candidates);
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void OnWritableState(cricket::Transport* transport);
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// transport-management overrides from cricket::BaseSession
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virtual cricket::TransportChannel* CreateChannel(
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const std::string& content_name, const std::string& name);
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virtual cricket::TransportChannel* GetChannel(
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const std::string& content_name, const std::string& name);
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virtual void DestroyChannel(
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const std::string& content_name, const std::string& name);
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virtual talk_base::Thread* worker_thread() {
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return NULL;
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}
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void SendLocalDescription();
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void UpdateTransportWritableState();
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bool CheckAllTransportsWritable();
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void StartTransportTimeout(int timeout);
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void ClearTransportTimeout();
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void NotifyTransportState();
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cricket::SessionDescription* CreateOffer();
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cricket::SessionDescription* CreateAnswer(
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const cricket::SessionDescription* answer);
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//from MessageHandler
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virtual void OnMessage(talk_base::Message* message);
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private:
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typedef std::map<std::string, PC_Transport_Impl*> TransportChannelMap;
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cricket::VideoChannel* CreateVideoChannel_w(
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const std::string& content_name,
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bool rtcp,
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cricket::VoiceChannel* voice_channel);
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cricket::VoiceChannel* CreateVoiceChannel_w(
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const std::string& content_name,
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bool rtcp);
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void DestroyVoiceChannel_w(cricket::VoiceChannel* channel);
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void DestroyVideoChannel_w(cricket::VideoChannel* channel);
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void SignalOnWritableState_w(cricket::TransportChannel* channel);
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void SetSessionState(State state);
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void SetSessionState_w();
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bool SetVideoCapture(bool capture);
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cricket::CaptureResult SetVideoCapture_w(bool capture);
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void DisableLocalCandidate(const std::string& name);
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bool OnRemoteDescriptionUpdate(const cricket::SessionDescription* desc,
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std::vector<cricket::Candidate>& candidates);
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void RemoveStreamOnRequest(const cricket::Candidate& candidate);
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void RemoveStream_w(const std::string& stream_id);
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void RemoveAllStreams_w();
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void EnableAllStreams_w();
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void SendLocalDescription_w();
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WebRtcChannelManager* channel_manager_;
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std::vector<StreamInfo*> streams_;
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TransportChannelMap transport_channels_;
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bool all_writable_;
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bool muted_;
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bool camera_muted_;
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int setup_timeout_;
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std::vector<cricket::Candidate> local_candidates_;
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std::vector<cricket::Candidate> remote_candidates_;
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State session_state_;
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bool signal_initiated_;
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};
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} /* namespace webrtc */
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#endif /* TALK_APP_WEBRTC_WEBRTCSESSIONIMPL_H_ */
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