1 /*
2  *  Copyright (c) 2011 The WebRTC project authors. All Rights Reserved.
3  *
4  *  Use of this source code is governed by a BSD-style license
5  *  that can be found in the LICENSE file in the root of the source
6  *  tree. An additional intellectual property rights grant can be found
7  *  in the file PATENTS.  All contributing project authors may
8  *  be found in the AUTHORS file in the root of the source tree.
9  */
10 
11 #ifndef WEBRTC_AUDIO_DEVICE_AUDIO_MIXER_MANAGER_MAC_H
12 #define WEBRTC_AUDIO_DEVICE_AUDIO_MIXER_MANAGER_MAC_H
13 
14 #include "webrtc/modules/audio_device/include/audio_device.h"
15 #include "webrtc/system_wrappers/include/critical_section_wrapper.h"
16 #include "webrtc/typedefs.h"
17 
18 #include <CoreAudio/CoreAudio.h>
19 
20 namespace webrtc {
21 
22 class AudioMixerManagerMac {
23  public:
24   int32_t OpenSpeaker(AudioDeviceID deviceID);
25   int32_t OpenMicrophone(AudioDeviceID deviceID);
26   int32_t SetSpeakerVolume(uint32_t volume);
27   int32_t SpeakerVolume(uint32_t& volume) const;
28   int32_t MaxSpeakerVolume(uint32_t& maxVolume) const;
29   int32_t MinSpeakerVolume(uint32_t& minVolume) const;
30   int32_t SpeakerVolumeStepSize(uint16_t& stepSize) const;
31   int32_t SpeakerVolumeIsAvailable(bool& available);
32   int32_t SpeakerMuteIsAvailable(bool& available);
33   int32_t SetSpeakerMute(bool enable);
34   int32_t SpeakerMute(bool& enabled) const;
35   int32_t StereoPlayoutIsAvailable(bool& available);
36   int32_t StereoRecordingIsAvailable(bool& available);
37   int32_t MicrophoneMuteIsAvailable(bool& available);
38   int32_t SetMicrophoneMute(bool enable);
39   int32_t MicrophoneMute(bool& enabled) const;
40   int32_t MicrophoneBoostIsAvailable(bool& available);
41   int32_t SetMicrophoneBoost(bool enable);
42   int32_t MicrophoneBoost(bool& enabled) const;
43   int32_t MicrophoneVolumeIsAvailable(bool& available);
44   int32_t SetMicrophoneVolume(uint32_t volume);
45   int32_t MicrophoneVolume(uint32_t& volume) const;
46   int32_t MaxMicrophoneVolume(uint32_t& maxVolume) const;
47   int32_t MinMicrophoneVolume(uint32_t& minVolume) const;
48   int32_t MicrophoneVolumeStepSize(uint16_t& stepSize) const;
49   int32_t Close();
50   int32_t CloseSpeaker();
51   int32_t CloseMicrophone();
52   bool SpeakerIsInitialized() const;
53   bool MicrophoneIsInitialized() const;
54 
55  public:
56   AudioMixerManagerMac(const int32_t id);
57   ~AudioMixerManagerMac();
58 
59  private:
60   static void logCAMsg(const TraceLevel level,
61                        const TraceModule module,
62                        const int32_t id,
63                        const char* msg,
64                        const char* err);
65 
66  private:
67   CriticalSectionWrapper& _critSect;
68   int32_t _id;
69 
70   AudioDeviceID _inputDeviceID;
71   AudioDeviceID _outputDeviceID;
72 
73   uint16_t _noInputChannels;
74   uint16_t _noOutputChannels;
75 };
76 
77 }  // namespace webrtc
78 
79 #endif  // AUDIO_MIXER_MAC_H
80