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1 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file.
4 
5 #ifndef REMOTING_HOST_IPC_AUDIO_CAPTURER_H_
6 #define REMOTING_HOST_IPC_AUDIO_CAPTURER_H_
7 
8 #include "base/basictypes.h"
9 #include "base/memory/ref_counted.h"
10 #include "base/memory/scoped_ptr.h"
11 #include "base/memory/weak_ptr.h"
12 #include "remoting/host/audio_capturer.h"
13 
14 namespace remoting {
15 
16 class AudioPacket;
17 class DesktopSessionProxy;
18 
19 class IpcAudioCapturer : public AudioCapturer {
20  public:
21   explicit IpcAudioCapturer(
22       scoped_refptr<DesktopSessionProxy> desktop_session_proxy);
23   virtual ~IpcAudioCapturer();
24 
25   // AudioCapturer interface.
26   virtual bool Start(const PacketCapturedCallback& callback) OVERRIDE;
27   virtual void Stop() OVERRIDE;
28   virtual bool IsStarted() OVERRIDE;
29 
30   // Called by DesktopSessionProxy when an audio packet is received.
31   void OnAudioPacket(scoped_ptr<AudioPacket> packet);
32 
33  private:
34   // Invoked when an audio packet was received.
35   PacketCapturedCallback callback_;
36 
37   // Wraps the IPC channel to the desktop session agent.
38   scoped_refptr<DesktopSessionProxy> desktop_session_proxy_;
39 
40   // Used to cancel tasks pending on the capturer when it is stopped.
41   base::WeakPtrFactory<IpcAudioCapturer> weak_factory_;
42 
43   DISALLOW_COPY_AND_ASSIGN(IpcAudioCapturer);
44 };
45 
46 }  // namespace remoting
47 
48 #endif  // REMOTING_HOST_IPC_AUDIO_CAPTURER_H_
49