1 // Copyright 2013 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_CRAS_AUDIO_MANAGER_CRAS_H_ 6 #define MEDIA_AUDIO_CRAS_AUDIO_MANAGER_CRAS_H_ 7 8 #include <string> 9 10 #include "base/compiler_specific.h" 11 #include "base/memory/ref_counted.h" 12 #include "media/audio/audio_manager_base.h" 13 14 namespace media { 15 16 class MEDIA_EXPORT AudioManagerCras : public AudioManagerBase { 17 public: 18 AudioManagerCras(AudioLogFactory* audio_log_factory); 19 20 // AudioManager implementation. 21 virtual bool HasAudioOutputDevices() OVERRIDE; 22 virtual bool HasAudioInputDevices() OVERRIDE; 23 virtual void ShowAudioInputSettings() OVERRIDE; 24 virtual void GetAudioInputDeviceNames( 25 AudioDeviceNames* device_names) OVERRIDE; 26 virtual void GetAudioOutputDeviceNames( 27 AudioDeviceNames* device_names) OVERRIDE; 28 virtual AudioParameters GetInputStreamParameters( 29 const std::string& device_id) OVERRIDE; 30 31 // AudioManagerBase implementation. 32 virtual AudioOutputStream* MakeLinearOutputStream( 33 const AudioParameters& params) OVERRIDE; 34 virtual AudioOutputStream* MakeLowLatencyOutputStream( 35 const AudioParameters& params, 36 const std::string& device_id, 37 const std::string& input_device_id) OVERRIDE; 38 virtual AudioInputStream* MakeLinearInputStream( 39 const AudioParameters& params, const std::string& device_id) OVERRIDE; 40 virtual AudioInputStream* MakeLowLatencyInputStream( 41 const AudioParameters& params, const std::string& device_id) OVERRIDE; 42 43 protected: 44 virtual ~AudioManagerCras(); 45 46 virtual AudioParameters GetPreferredOutputStreamParameters( 47 const std::string& output_device_id, 48 const AudioParameters& input_params) OVERRIDE; 49 50 private: 51 // Called by MakeLinearOutputStream and MakeLowLatencyOutputStream. 52 AudioOutputStream* MakeOutputStream(const AudioParameters& params); 53 54 // Called by MakeLinearInputStream and MakeLowLatencyInputStream. 55 AudioInputStream* MakeInputStream(const AudioParameters& params, 56 const std::string& device_id); 57 58 DISALLOW_COPY_AND_ASSIGN(AudioManagerCras); 59 }; 60 61 } // namespace media 62 63 #endif // MEDIA_AUDIO_CRAS_AUDIO_MANAGER_CRAS_H_ 64