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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 
     28 #ifndef TALK_MEDIA_WEBRTCMEDIAENGINE_H_
     29 #define TALK_MEDIA_WEBRTCMEDIAENGINE_H_
     30 
     31 #include "talk/media/base/mediaengine.h"
     32 #include "talk/media/webrtc/webrtcexport.h"
     33 
     34 namespace webrtc {
     35 class AudioDeviceModule;
     36 class VideoCaptureModule;
     37 }
     38 namespace cricket {
     39 class WebRtcVideoDecoderFactory;
     40 class WebRtcVideoEncoderFactory;
     41 }
     42 
     43 
     44 #if !defined(LIBPEERCONNECTION_LIB) && \
     45     !defined(LIBPEERCONNECTION_IMPLEMENTATION)
     46 
     47 WRME_EXPORT
     48 cricket::MediaEngineInterface* CreateWebRtcMediaEngine(
     49     webrtc::AudioDeviceModule* adm, webrtc::AudioDeviceModule* adm_sc,
     50     cricket::WebRtcVideoEncoderFactory* encoder_factory,
     51     cricket::WebRtcVideoDecoderFactory* decoder_factory);
     52 
     53 WRME_EXPORT
     54 void DestroyWebRtcMediaEngine(cricket::MediaEngineInterface* media_engine);
     55 
     56 namespace cricket {
     57 
     58 class WebRtcMediaEngine : public cricket::MediaEngineInterface {
     59  public:
     60   WebRtcMediaEngine(
     61       webrtc::AudioDeviceModule* adm,
     62       webrtc::AudioDeviceModule* adm_sc,
     63       cricket::WebRtcVideoEncoderFactory* encoder_factory,
     64       cricket::WebRtcVideoDecoderFactory* decoder_factory)
     65       : delegate_(CreateWebRtcMediaEngine(
     66           adm, adm_sc, encoder_factory, decoder_factory)) {
     67   }
     68   virtual ~WebRtcMediaEngine() {
     69     DestroyWebRtcMediaEngine(delegate_);
     70   }
     71   virtual bool Init(talk_base::Thread* worker_thread) OVERRIDE {
     72     return delegate_->Init(worker_thread);
     73   }
     74   virtual void Terminate() OVERRIDE {
     75     delegate_->Terminate();
     76   }
     77   virtual int GetCapabilities() OVERRIDE {
     78     return delegate_->GetCapabilities();
     79   }
     80   virtual VoiceMediaChannel* CreateChannel() OVERRIDE {
     81     return delegate_->CreateChannel();
     82   }
     83   virtual VideoMediaChannel* CreateVideoChannel(
     84       VoiceMediaChannel* voice_media_channel) OVERRIDE {
     85     return delegate_->CreateVideoChannel(voice_media_channel);
     86   }
     87   virtual SoundclipMedia* CreateSoundclip() OVERRIDE {
     88     return delegate_->CreateSoundclip();
     89   }
     90   virtual bool SetAudioOptions(int options) OVERRIDE {
     91     return delegate_->SetAudioOptions(options);
     92   }
     93   virtual bool SetVideoOptions(int options) OVERRIDE {
     94     return delegate_->SetVideoOptions(options);
     95   }
     96   virtual bool SetAudioDelayOffset(int offset) OVERRIDE {
     97     return delegate_->SetAudioDelayOffset(offset);
     98   }
     99   virtual bool SetDefaultVideoEncoderConfig(
    100       const VideoEncoderConfig& config) OVERRIDE {
    101     return delegate_->SetDefaultVideoEncoderConfig(config);
    102   }
    103   virtual bool SetSoundDevices(
    104       const Device* in_device, const Device* out_device) OVERRIDE {
    105     return delegate_->SetSoundDevices(in_device, out_device);
    106   }
    107   virtual bool GetOutputVolume(int* level) OVERRIDE {
    108     return delegate_->GetOutputVolume(level);
    109   }
    110   virtual bool SetOutputVolume(int level) OVERRIDE {
    111     return delegate_->SetOutputVolume(level);
    112   }
    113   virtual int GetInputLevel() OVERRIDE {
    114     return delegate_->GetInputLevel();
    115   }
    116   virtual bool SetLocalMonitor(bool enable) OVERRIDE {
    117     return delegate_->SetLocalMonitor(enable);
    118   }
    119   virtual bool SetLocalRenderer(VideoRenderer* renderer) OVERRIDE {
    120     return delegate_->SetLocalRenderer(renderer);
    121   }
    122   virtual const std::vector<AudioCodec>& audio_codecs() OVERRIDE {
    123     return delegate_->audio_codecs();
    124   }
    125   virtual const std::vector<RtpHeaderExtension>&
    126       audio_rtp_header_extensions() OVERRIDE {
    127     return delegate_->audio_rtp_header_extensions();
    128   }
    129   virtual const std::vector<VideoCodec>& video_codecs() OVERRIDE {
    130     return delegate_->video_codecs();
    131   }
    132   virtual const std::vector<RtpHeaderExtension>&
    133       video_rtp_header_extensions() OVERRIDE {
    134     return delegate_->video_rtp_header_extensions();
    135   }
    136   virtual void SetVoiceLogging(int min_sev, const char* filter) OVERRIDE {
    137     delegate_->SetVoiceLogging(min_sev, filter);
    138   }
    139   virtual void SetVideoLogging(int min_sev, const char* filter) OVERRIDE {
    140     delegate_->SetVideoLogging(min_sev, filter);
    141   }
    142   virtual bool RegisterVoiceProcessor(
    143       uint32 ssrc, VoiceProcessor* video_processor,
    144       MediaProcessorDirection direction) OVERRIDE {
    145     return delegate_->RegisterVoiceProcessor(ssrc, video_processor, direction);
    146   }
    147   virtual bool UnregisterVoiceProcessor(
    148       uint32 ssrc, VoiceProcessor* video_processor,
    149       MediaProcessorDirection direction) OVERRIDE {
    150     return delegate_->UnregisterVoiceProcessor(ssrc, video_processor,
    151         direction);
    152   }
    153   virtual VideoFormat GetStartCaptureFormat() const OVERRIDE {
    154     return delegate_->GetStartCaptureFormat();
    155   }
    156   virtual sigslot::repeater2<VideoCapturer*, CaptureState>&
    157       SignalVideoCaptureStateChange() {
    158     return delegate_->SignalVideoCaptureStateChange();
    159   }
    160 
    161  private:
    162   cricket::MediaEngineInterface* delegate_;
    163 };
    164 
    165 }  // namespace cricket
    166 #else
    167 
    168 #include "talk/media/webrtc/webrtcvideoengine.h"
    169 #include "talk/media/webrtc/webrtcvoiceengine.h"
    170 
    171 namespace cricket {
    172 typedef CompositeMediaEngine<WebRtcVoiceEngine, WebRtcVideoEngine>
    173         WebRtcCompositeMediaEngine;
    174 
    175 class WebRtcMediaEngine : public WebRtcCompositeMediaEngine {
    176  public:
    177   WebRtcMediaEngine(webrtc::AudioDeviceModule* adm,
    178       webrtc::AudioDeviceModule* adm_sc,
    179       WebRtcVideoEncoderFactory* encoder_factory,
    180       WebRtcVideoDecoderFactory* decoder_factory) {
    181     voice_.SetAudioDeviceModule(adm, adm_sc);
    182     video_.SetVoiceEngine(&voice_);
    183     video_.EnableTimedRender();
    184     video_.SetExternalEncoderFactory(encoder_factory);
    185     video_.SetExternalDecoderFactory(decoder_factory);
    186   }
    187 };
    188 
    189 }  // namespace cricket
    190 
    191 #endif  // !defined(LIBPEERCONNECTION_LIB) &&
    192         // !defined(LIBPEERCONNECTION_IMPLEMENTATION)
    193 
    194 #endif  // TALK_MEDIA_WEBRTCMEDIAENGINE_H_
    195