remoting/host/ipc_audio_capturer.h

   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_