audio_manager_mac.h revision 5821806d5e7f356e8fa4b058a389a808ea183019
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 MEDIA_AUDIO_MAC_AUDIO_MANAGER_MAC_H_ 6#define MEDIA_AUDIO_MAC_AUDIO_MANAGER_MAC_H_ 7 8#include "base/basictypes.h" 9#include "base/callback.h" 10#include "base/compiler_specific.h" 11#include "media/audio/audio_manager_base.h" 12 13namespace media { 14 15// Mac OS X implementation of the AudioManager singleton. This class is internal 16// to the audio output and only internal users can call methods not exposed by 17// the AudioManager class. 18class MEDIA_EXPORT AudioManagerMac : public AudioManagerBase { 19 public: 20 AudioManagerMac(); 21 22 // Implementation of AudioManager. 23 virtual bool HasAudioOutputDevices() OVERRIDE; 24 virtual bool HasAudioInputDevices() OVERRIDE; 25 virtual void GetAudioInputDeviceNames(media::AudioDeviceNames* device_names) 26 OVERRIDE; 27 28 // Implementation of AudioManagerBase. 29 virtual AudioOutputStream* MakeLinearOutputStream( 30 const AudioParameters& params) OVERRIDE; 31 virtual AudioOutputStream* MakeLowLatencyOutputStream( 32 const AudioParameters& params) OVERRIDE; 33 virtual AudioInputStream* MakeLinearInputStream( 34 const AudioParameters& params, const std::string& device_id) OVERRIDE; 35 virtual AudioInputStream* MakeLowLatencyInputStream( 36 const AudioParameters& params, const std::string& device_id) OVERRIDE; 37 38 protected: 39 virtual ~AudioManagerMac(); 40 41 private: 42 // Listens for output device changes. 43 base::Closure listener_cb_; 44 45 DISALLOW_COPY_AND_ASSIGN(AudioManagerMac); 46}; 47 48} // namespace media 49 50#endif // MEDIA_AUDIO_MAC_AUDIO_MANAGER_MAC_H_ 51