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      1 /*
      2  * libjingle
      3  * Copyright 2011, Google Inc.
      4  *
      5  * Redistribution and use in source and binary forms, with or without
      6  * modification, are permitted provided that the following conditions are met:
      7  *
      8  *  1. Redistributions of source code must retain the above copyright notice,
      9  *     this list of conditions and the following disclaimer.
     10  *  2. Redistributions in binary form must reproduce the above copyright notice,
     11  *     this list of conditions and the following disclaimer in the documentation
     12  *     and/or other materials provided with the distribution.
     13  *  3. The name of the author may not be used to endorse or promote products
     14  *     derived from this software without specific prior written permission.
     15  *
     16  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
     17  * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
     18  * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
     19  * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
     20  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
     21  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
     22  * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
     23  * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
     24  * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
     25  * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     26  */
     27 #ifndef TALK_APP_WEBRTC_PEERCONNECTIONFACTORY_H_
     28 #define TALK_APP_WEBRTC_PEERCONNECTIONFACTORY_H_
     29 
     30 #include <string>
     31 
     32 #include "talk/app/webrtc/mediastreaminterface.h"
     33 #include "talk/app/webrtc/peerconnectioninterface.h"
     34 #include "talk/base/scoped_ptr.h"
     35 #include "talk/base/thread.h"
     36 #include "talk/session/media/channelmanager.h"
     37 
     38 namespace webrtc {
     39 
     40 class PeerConnectionFactory : public PeerConnectionFactoryInterface,
     41                               public talk_base::MessageHandler {
     42  public:
     43   virtual void SetOptions(const Options& options) {
     44     options_ = options;
     45   }
     46 
     47   virtual talk_base::scoped_refptr<PeerConnectionInterface>
     48       CreatePeerConnection(
     49           const PeerConnectionInterface::IceServers& configuration,
     50           const MediaConstraintsInterface* constraints,
     51           DTLSIdentityServiceInterface* dtls_identity_service,
     52           PeerConnectionObserver* observer);
     53 
     54   virtual talk_base::scoped_refptr<PeerConnectionInterface>
     55       CreatePeerConnection(
     56           const PeerConnectionInterface::IceServers& configuration,
     57           const MediaConstraintsInterface* constraints,
     58           PortAllocatorFactoryInterface* allocator_factory,
     59           DTLSIdentityServiceInterface* dtls_identity_service,
     60           PeerConnectionObserver* observer);
     61   bool Initialize();
     62 
     63   virtual talk_base::scoped_refptr<MediaStreamInterface>
     64       CreateLocalMediaStream(const std::string& label);
     65 
     66   virtual talk_base::scoped_refptr<AudioSourceInterface> CreateAudioSource(
     67       const MediaConstraintsInterface* constraints);
     68 
     69   virtual talk_base::scoped_refptr<VideoSourceInterface> CreateVideoSource(
     70       cricket::VideoCapturer* capturer,
     71       const MediaConstraintsInterface* constraints);
     72 
     73   virtual talk_base::scoped_refptr<VideoTrackInterface>
     74       CreateVideoTrack(const std::string& id,
     75                        VideoSourceInterface* video_source);
     76 
     77   virtual talk_base::scoped_refptr<AudioTrackInterface>
     78       CreateAudioTrack(const std::string& id,
     79                        AudioSourceInterface* audio_source);
     80 
     81   virtual cricket::ChannelManager* channel_manager();
     82   virtual talk_base::Thread* signaling_thread();
     83   virtual talk_base::Thread* worker_thread();
     84   const Options& options() const { return options_; }
     85 
     86  protected:
     87   PeerConnectionFactory();
     88   PeerConnectionFactory(
     89       talk_base::Thread* worker_thread,
     90       talk_base::Thread* signaling_thread,
     91       AudioDeviceModule* default_adm,
     92       cricket::WebRtcVideoEncoderFactory* video_encoder_factory,
     93       cricket::WebRtcVideoDecoderFactory* video_decoder_factory);
     94   virtual ~PeerConnectionFactory();
     95 
     96 
     97  private:
     98   bool Initialize_s();
     99   void Terminate_s();
    100   talk_base::scoped_refptr<AudioSourceInterface> CreateAudioSource_s(
    101       const MediaConstraintsInterface* constraints);
    102   talk_base::scoped_refptr<VideoSourceInterface> CreateVideoSource_s(
    103       cricket::VideoCapturer* capturer,
    104       const MediaConstraintsInterface* constraints);
    105   talk_base::scoped_refptr<PeerConnectionInterface> CreatePeerConnection_s(
    106       const PeerConnectionInterface::IceServers& configuration,
    107       const MediaConstraintsInterface* constraints,
    108       PortAllocatorFactoryInterface* allocator_factory,
    109       DTLSIdentityServiceInterface* dtls_identity_service,
    110       PeerConnectionObserver* observer);
    111   // Implements talk_base::MessageHandler.
    112   void OnMessage(talk_base::Message* msg);
    113 
    114   bool owns_ptrs_;
    115   talk_base::Thread* signaling_thread_;
    116   talk_base::Thread* worker_thread_;
    117   Options options_;
    118   talk_base::scoped_refptr<PortAllocatorFactoryInterface> allocator_factory_;
    119   // External Audio device used for audio playback.
    120   talk_base::scoped_refptr<AudioDeviceModule> default_adm_;
    121   talk_base::scoped_ptr<cricket::ChannelManager> channel_manager_;
    122   // External Video encoder factory. This can be NULL if the client has not
    123   // injected any. In that case, video engine will use the internal SW encoder.
    124   talk_base::scoped_ptr<cricket::WebRtcVideoEncoderFactory>
    125       video_encoder_factory_;
    126   // External Video decoder factory. This can be NULL if the client has not
    127   // injected any. In that case, video engine will use the internal SW decoder.
    128   talk_base::scoped_ptr<cricket::WebRtcVideoDecoderFactory>
    129       video_decoder_factory_;
    130 };
    131 
    132 }  // namespace webrtc
    133 
    134 #endif  // TALK_APP_WEBRTC_PEERCONNECTIONFACTORY_H_
    135