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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::RTCConfiguration& configuration,
     50           const MediaConstraintsInterface* constraints,
     51           PortAllocatorFactoryInterface* allocator_factory,
     52           DTLSIdentityServiceInterface* dtls_identity_service,
     53           PeerConnectionObserver* observer);
     54 
     55   bool Initialize();
     56 
     57   virtual talk_base::scoped_refptr<MediaStreamInterface>
     58       CreateLocalMediaStream(const std::string& label);
     59 
     60   virtual talk_base::scoped_refptr<AudioSourceInterface> CreateAudioSource(
     61       const MediaConstraintsInterface* constraints);
     62 
     63   virtual talk_base::scoped_refptr<VideoSourceInterface> CreateVideoSource(
     64       cricket::VideoCapturer* capturer,
     65       const MediaConstraintsInterface* constraints);
     66 
     67   virtual talk_base::scoped_refptr<VideoTrackInterface>
     68       CreateVideoTrack(const std::string& id,
     69                        VideoSourceInterface* video_source);
     70 
     71   virtual talk_base::scoped_refptr<AudioTrackInterface>
     72       CreateAudioTrack(const std::string& id,
     73                        AudioSourceInterface* audio_source);
     74 
     75   virtual bool StartAecDump(talk_base::PlatformFile file);
     76 
     77   virtual cricket::ChannelManager* channel_manager();
     78   virtual talk_base::Thread* signaling_thread();
     79   virtual talk_base::Thread* worker_thread();
     80   const Options& options() const { return options_; }
     81 
     82  protected:
     83   PeerConnectionFactory();
     84   PeerConnectionFactory(
     85       talk_base::Thread* worker_thread,
     86       talk_base::Thread* signaling_thread,
     87       AudioDeviceModule* default_adm,
     88       cricket::WebRtcVideoEncoderFactory* video_encoder_factory,
     89       cricket::WebRtcVideoDecoderFactory* video_decoder_factory);
     90   virtual ~PeerConnectionFactory();
     91 
     92  private:
     93   bool Initialize_s();
     94   void Terminate_s();
     95   talk_base::scoped_refptr<AudioSourceInterface> CreateAudioSource_s(
     96       const MediaConstraintsInterface* constraints);
     97   talk_base::scoped_refptr<VideoSourceInterface> CreateVideoSource_s(
     98       cricket::VideoCapturer* capturer,
     99       const MediaConstraintsInterface* constraints);
    100 
    101   talk_base::scoped_refptr<PeerConnectionInterface> CreatePeerConnection_s(
    102       const PeerConnectionInterface::RTCConfiguration& configuration,
    103       const MediaConstraintsInterface* constraints,
    104       PortAllocatorFactoryInterface* allocator_factory,
    105       DTLSIdentityServiceInterface* dtls_identity_service,
    106       PeerConnectionObserver* observer);
    107 
    108   bool StartAecDump_s(talk_base::PlatformFile file);
    109 
    110   // Implements talk_base::MessageHandler.
    111   void OnMessage(talk_base::Message* msg);
    112 
    113   bool owns_ptrs_;
    114   talk_base::Thread* signaling_thread_;
    115   talk_base::Thread* worker_thread_;
    116   Options options_;
    117   talk_base::scoped_refptr<PortAllocatorFactoryInterface> allocator_factory_;
    118   // External Audio device used for audio playback.
    119   talk_base::scoped_refptr<AudioDeviceModule> default_adm_;
    120   talk_base::scoped_ptr<cricket::ChannelManager> channel_manager_;
    121   // External Video encoder factory. This can be NULL if the client has not
    122   // injected any. In that case, video engine will use the internal SW encoder.
    123   talk_base::scoped_ptr<cricket::WebRtcVideoEncoderFactory>
    124       video_encoder_factory_;
    125   // External Video decoder factory. This can be NULL if the client has not
    126   // injected any. In that case, video engine will use the internal SW decoder.
    127   talk_base::scoped_ptr<cricket::WebRtcVideoDecoderFactory>
    128       video_decoder_factory_;
    129 };
    130 
    131 }  // namespace webrtc
    132 
    133 #endif  // TALK_APP_WEBRTC_PEERCONNECTIONFACTORY_H_
    134