1 /*
2  * libjingle
3  * Copyright 2012 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_APP_WEBRTC_LOCALAUDIOSOURCE_H_
29 #define TALK_APP_WEBRTC_LOCALAUDIOSOURCE_H_
30 
31 #include "talk/app/webrtc/mediastreaminterface.h"
32 #include "talk/app/webrtc/notifier.h"
33 #include "talk/app/webrtc/peerconnectioninterface.h"
34 #include "talk/media/base/mediachannel.h"
35 #include "webrtc/base/scoped_ptr.h"
36 
37 // LocalAudioSource implements AudioSourceInterface.
38 // This contains settings for switching audio processing on and off.
39 
40 namespace webrtc {
41 
42 class MediaConstraintsInterface;
43 
44 class LocalAudioSource : public Notifier<AudioSourceInterface> {
45  public:
46   // Creates an instance of LocalAudioSource.
47   static rtc::scoped_refptr<LocalAudioSource> Create(
48       const PeerConnectionFactoryInterface::Options& options,
49       const MediaConstraintsInterface* constraints);
50 
state()51   SourceState state() const override { return source_state_; }
remote()52   bool remote() const override { return false; }
53 
options()54   virtual const cricket::AudioOptions& options() const { return options_; }
55 
AddSink(AudioTrackSinkInterface * sink)56   void AddSink(AudioTrackSinkInterface* sink) override {}
RemoveSink(AudioTrackSinkInterface * sink)57   void RemoveSink(AudioTrackSinkInterface* sink) override {}
58 
59  protected:
LocalAudioSource()60   LocalAudioSource() : source_state_(kInitializing) {}
~LocalAudioSource()61   ~LocalAudioSource() override {}
62 
63  private:
64   void Initialize(const PeerConnectionFactoryInterface::Options& options,
65                   const MediaConstraintsInterface* constraints);
66 
67   cricket::AudioOptions options_;
68   SourceState source_state_;
69 };
70 
71 }  // namespace webrtc
72 
73 #endif  // TALK_APP_WEBRTC_LOCALAUDIOSOURCE_H_
74