clang-format audio_device/mac.

webrtc/modules/audio_device/mac/audio_device_mac.h

 /*
  *  Copyright (c) 2012 The WebRTC project authors. All Rights Reserved.
  *
  *  Use of this source code is governed by a BSD-style license
  *  that can be found in the LICENSE file in the root of the source
  *  tree. An additional intellectual property rights grant can be found
  *  in the file PATENTS.  All contributing project authors may
  *  be found in the AUTHORS file in the root of the source tree.
  */
 
 #ifndef WEBRTC_AUDIO_DEVICE_AUDIO_DEVICE_MAC_H
 #define WEBRTC_AUDIO_DEVICE_AUDIO_DEVICE_MAC_H
 
 #include "webrtc/base/scoped_ptr.h"
 #include "webrtc/base/thread_annotations.h"
 #include "webrtc/modules/audio_device/audio_device_generic.h"
 #include "webrtc/modules/audio_device/mac/audio_mixer_manager_mac.h"
 #include "webrtc/system_wrappers/include/critical_section_wrapper.h"
 
 #include <AudioToolbox/AudioConverter.h>
 #include <CoreAudio/CoreAudio.h>
 #include <mach/semaphore.h>
 
 struct PaUtilRingBuffer;
 
 namespace rtc {
 class PlatformThread;
 }  // namespace rtc
 
-namespace webrtc
-{
+namespace webrtc {
 class EventWrapper;
 
 const uint32_t N_REC_SAMPLES_PER_SEC = 48000;
 const uint32_t N_PLAY_SAMPLES_PER_SEC = 48000;
 
-const uint32_t N_REC_CHANNELS = 1; // default is mono recording
-const uint32_t N_PLAY_CHANNELS = 2; // default is stereo playout
+const uint32_t N_REC_CHANNELS = 1;   // default is mono recording
+const uint32_t N_PLAY_CHANNELS = 2;  // default is stereo playout
 const uint32_t N_DEVICE_CHANNELS = 64;
 
 const int kBufferSizeMs = 10;
 
 const uint32_t ENGINE_REC_BUF_SIZE_IN_SAMPLES =
     N_REC_SAMPLES_PER_SEC * kBufferSizeMs / 1000;
 const uint32_t ENGINE_PLAY_BUF_SIZE_IN_SAMPLES =
     N_PLAY_SAMPLES_PER_SEC * kBufferSizeMs / 1000;
 
 const int N_BLOCKS_IO = 2;
-const int N_BUFFERS_IN = 2;  // Must be at least N_BLOCKS_IO.
+const int N_BUFFERS_IN = 2;   // Must be at least N_BLOCKS_IO.
 const int N_BUFFERS_OUT = 3;  // Must be at least N_BLOCKS_IO.
 
 const uint32_t TIMER_PERIOD_MS = 2 * 10 * N_BLOCKS_IO * 1000000;
 
 const uint32_t REC_BUF_SIZE_IN_SAMPLES =
     ENGINE_REC_BUF_SIZE_IN_SAMPLES * N_DEVICE_CHANNELS * N_BUFFERS_IN;
 const uint32_t PLAY_BUF_SIZE_IN_SAMPLES =
     ENGINE_PLAY_BUF_SIZE_IN_SAMPLES * N_PLAY_CHANNELS * N_BUFFERS_OUT;
 
 const int kGetMicVolumeIntervalMs = 1000;
 
-class AudioDeviceMac: public AudioDeviceGeneric
-{
-public:
-    AudioDeviceMac(const int32_t id);
-    ~AudioDeviceMac();
-
-    // Retrieve the currently utilized audio layer
-    virtual int32_t
-        ActiveAudioLayer(AudioDeviceModule::AudioLayer& audioLayer) const;
-
-    // Main initializaton and termination
-    virtual int32_t Init();
-    virtual int32_t Terminate();
-    virtual bool Initialized() const;
-
-    // Device enumeration
-    virtual int16_t PlayoutDevices();
-    virtual int16_t RecordingDevices();
-    virtual int32_t PlayoutDeviceName(
-        uint16_t index,
-        char name[kAdmMaxDeviceNameSize],
-        char guid[kAdmMaxGuidSize]);
-    virtual int32_t RecordingDeviceName(
-        uint16_t index,
-        char name[kAdmMaxDeviceNameSize],
-        char guid[kAdmMaxGuidSize]);
-
-    // Device selection
-    virtual int32_t SetPlayoutDevice(uint16_t index);
-    virtual int32_t SetPlayoutDevice(
-        AudioDeviceModule::WindowsDeviceType device);
-    virtual int32_t SetRecordingDevice(uint16_t index);
-    virtual int32_t SetRecordingDevice(
-        AudioDeviceModule::WindowsDeviceType device);
-
-    // Audio transport initialization
-    virtual int32_t PlayoutIsAvailable(bool& available);
-    virtual int32_t InitPlayout();
-    virtual bool PlayoutIsInitialized() const;
-    virtual int32_t RecordingIsAvailable(bool& available);
-    virtual int32_t InitRecording();
-    virtual bool RecordingIsInitialized() const;
-
-    // Audio transport control
-    virtual int32_t StartPlayout();
-    virtual int32_t StopPlayout();
-    virtual bool Playing() const;
-    virtual int32_t StartRecording();
-    virtual int32_t StopRecording();
-    virtual bool Recording() const;
-
-    // Microphone Automatic Gain Control (AGC)
-    virtual int32_t SetAGC(bool enable);
-    virtual bool AGC() const;
-
-    // Volume control based on the Windows Wave API (Windows only)
-    virtual int32_t SetWaveOutVolume(uint16_t volumeLeft, uint16_t volumeRight);
-    virtual int32_t WaveOutVolume(uint16_t& volumeLeft,
-                                  uint16_t& volumeRight) const;
-
-    // Audio mixer initialization
-    virtual int32_t InitSpeaker();
-    virtual bool SpeakerIsInitialized() const;
-    virtual int32_t InitMicrophone();
-    virtual bool MicrophoneIsInitialized() const;
-
-    // Speaker volume controls
-    virtual int32_t SpeakerVolumeIsAvailable(bool& available);
-    virtual int32_t SetSpeakerVolume(uint32_t volume);
-    virtual int32_t SpeakerVolume(uint32_t& volume) const;
-    virtual int32_t MaxSpeakerVolume(uint32_t& maxVolume) const;
-    virtual int32_t MinSpeakerVolume(uint32_t& minVolume) const;
-    virtual int32_t SpeakerVolumeStepSize(uint16_t& stepSize) const;
-
-    // Microphone volume controls
-    virtual int32_t MicrophoneVolumeIsAvailable(bool& available);
-    virtual int32_t SetMicrophoneVolume(uint32_t volume);
-    virtual int32_t MicrophoneVolume(uint32_t& volume) const;
-    virtual int32_t MaxMicrophoneVolume(uint32_t& maxVolume) const;
-    virtual int32_t MinMicrophoneVolume(uint32_t& minVolume) const;
-    virtual int32_t
-        MicrophoneVolumeStepSize(uint16_t& stepSize) const;
-
-    // Microphone mute control
-    virtual int32_t MicrophoneMuteIsAvailable(bool& available);
-    virtual int32_t SetMicrophoneMute(bool enable);
-    virtual int32_t MicrophoneMute(bool& enabled) const;
-
-    // Speaker mute control
-    virtual int32_t SpeakerMuteIsAvailable(bool& available);
-    virtual int32_t SetSpeakerMute(bool enable);
-    virtual int32_t SpeakerMute(bool& enabled) const;
-
-    // Microphone boost control
-    virtual int32_t MicrophoneBoostIsAvailable(bool& available);
-    virtual int32_t SetMicrophoneBoost(bool enable);
-    virtual int32_t MicrophoneBoost(bool& enabled) const;
-
-    // Stereo support
-    virtual int32_t StereoPlayoutIsAvailable(bool& available);
-    virtual int32_t SetStereoPlayout(bool enable);
-    virtual int32_t StereoPlayout(bool& enabled) const;
-    virtual int32_t StereoRecordingIsAvailable(bool& available);
-    virtual int32_t SetStereoRecording(bool enable);
-    virtual int32_t StereoRecording(bool& enabled) const;
-
-    // Delay information and control
-    virtual int32_t
-        SetPlayoutBuffer(const AudioDeviceModule::BufferType type,
-                         uint16_t sizeMS);
-    virtual int32_t PlayoutBuffer(AudioDeviceModule::BufferType& type,
-                                  uint16_t& sizeMS) const;
-    virtual int32_t PlayoutDelay(uint16_t& delayMS) const;
-    virtual int32_t RecordingDelay(uint16_t& delayMS) const;
-
-    // CPU load
-    virtual int32_t CPULoad(uint16_t& load) const;
-
-    virtual bool PlayoutWarning() const;
-    virtual bool PlayoutError() const;
-    virtual bool RecordingWarning() const;
-    virtual bool RecordingError() const;
-    virtual void ClearPlayoutWarning();
-    virtual void ClearPlayoutError();
-    virtual void ClearRecordingWarning();
-    virtual void ClearRecordingError();
-
-    virtual void AttachAudioBuffer(AudioDeviceBuffer* audioBuffer);
-
-private:
-    virtual int32_t MicrophoneIsAvailable(bool& available);
-    virtual int32_t SpeakerIsAvailable(bool& available);
-
-    static void AtomicSet32(int32_t* theValue, int32_t newValue);
-    static int32_t AtomicGet32(int32_t* theValue);
-
-    static void logCAMsg(const TraceLevel level,
-                         const TraceModule module,
-                         const int32_t id, const char *msg,
-                         const char *err);
-
-    int32_t GetNumberDevices(const AudioObjectPropertyScope scope,
-                             AudioDeviceID scopedDeviceIds[],
-                             const uint32_t deviceListLength);
-
-    int32_t GetDeviceName(const AudioObjectPropertyScope scope,
-                          const uint16_t index, char* name);
-
-    int32_t InitDevice(uint16_t userDeviceIndex,
-                       AudioDeviceID& deviceId, bool isInput);
-
-    // Always work with our preferred playout format inside VoE.
-    // Then convert the output to the OS setting using an AudioConverter.
-    OSStatus SetDesiredPlayoutFormat();
-
-    static OSStatus
-        objectListenerProc(AudioObjectID objectId, UInt32 numberAddresses,
-                           const AudioObjectPropertyAddress addresses[],
-                           void* clientData);
-
-    OSStatus
-        implObjectListenerProc(AudioObjectID objectId, UInt32 numberAddresses,
-                               const AudioObjectPropertyAddress addresses[]);
-
-    int32_t HandleDeviceChange();
-
-    int32_t
-        HandleStreamFormatChange(AudioObjectID objectId,
+class AudioDeviceMac : public AudioDeviceGeneric {
+ public:
+  AudioDeviceMac(const int32_t id);
+  ~AudioDeviceMac();
+
+  // Retrieve the currently utilized audio layer
+  virtual int32_t ActiveAudioLayer(
+      AudioDeviceModule::AudioLayer& audioLayer) const;
+
+  // Main initializaton and termination
+  virtual int32_t Init();
+  virtual int32_t Terminate();
+  virtual bool Initialized() const;
+
+  // Device enumeration
+  virtual int16_t PlayoutDevices();
+  virtual int16_t RecordingDevices();
+  virtual int32_t PlayoutDeviceName(uint16_t index,
+                                    char name[kAdmMaxDeviceNameSize],
+                                    char guid[kAdmMaxGuidSize]);
+  virtual int32_t RecordingDeviceName(uint16_t index,
+                                      char name[kAdmMaxDeviceNameSize],
+                                      char guid[kAdmMaxGuidSize]);
+
+  // Device selection
+  virtual int32_t SetPlayoutDevice(uint16_t index);
+  virtual int32_t SetPlayoutDevice(AudioDeviceModule::WindowsDeviceType device);
+  virtual int32_t SetRecordingDevice(uint16_t index);
+  virtual int32_t SetRecordingDevice(
+      AudioDeviceModule::WindowsDeviceType device);
+
+  // Audio transport initialization
+  virtual int32_t PlayoutIsAvailable(bool& available);
+  virtual int32_t InitPlayout();
+  virtual bool PlayoutIsInitialized() const;
+  virtual int32_t RecordingIsAvailable(bool& available);
+  virtual int32_t InitRecording();
+  virtual bool RecordingIsInitialized() const;
+
+  // Audio transport control
+  virtual int32_t StartPlayout();
+  virtual int32_t StopPlayout();
+  virtual bool Playing() const;
+  virtual int32_t StartRecording();
+  virtual int32_t StopRecording();
+  virtual bool Recording() const;
+
+  // Microphone Automatic Gain Control (AGC)
+  virtual int32_t SetAGC(bool enable);
+  virtual bool AGC() const;
+
+  // Volume control based on the Windows Wave API (Windows only)
+  virtual int32_t SetWaveOutVolume(uint16_t volumeLeft, uint16_t volumeRight);
+  virtual int32_t WaveOutVolume(uint16_t& volumeLeft,
+                                uint16_t& volumeRight) const;
+
+  // Audio mixer initialization
+  virtual int32_t InitSpeaker();
+  virtual bool SpeakerIsInitialized() const;
+  virtual int32_t InitMicrophone();
+  virtual bool MicrophoneIsInitialized() const;
+
+  // Speaker volume controls
+  virtual int32_t SpeakerVolumeIsAvailable(bool& available);
+  virtual int32_t SetSpeakerVolume(uint32_t volume);
+  virtual int32_t SpeakerVolume(uint32_t& volume) const;
+  virtual int32_t MaxSpeakerVolume(uint32_t& maxVolume) const;
+  virtual int32_t MinSpeakerVolume(uint32_t& minVolume) const;
+  virtual int32_t SpeakerVolumeStepSize(uint16_t& stepSize) const;
+
+  // Microphone volume controls
+  virtual int32_t MicrophoneVolumeIsAvailable(bool& available);
+  virtual int32_t SetMicrophoneVolume(uint32_t volume);
+  virtual int32_t MicrophoneVolume(uint32_t& volume) const;
+  virtual int32_t MaxMicrophoneVolume(uint32_t& maxVolume) const;
+  virtual int32_t MinMicrophoneVolume(uint32_t& minVolume) const;
+  virtual int32_t MicrophoneVolumeStepSize(uint16_t& stepSize) const;
+
+  // Microphone mute control
+  virtual int32_t MicrophoneMuteIsAvailable(bool& available);
+  virtual int32_t SetMicrophoneMute(bool enable);
+  virtual int32_t MicrophoneMute(bool& enabled) const;
+
+  // Speaker mute control
+  virtual int32_t SpeakerMuteIsAvailable(bool& available);
+  virtual int32_t SetSpeakerMute(bool enable);
+  virtual int32_t SpeakerMute(bool& enabled) const;
+
+  // Microphone boost control
+  virtual int32_t MicrophoneBoostIsAvailable(bool& available);
+  virtual int32_t SetMicrophoneBoost(bool enable);
+  virtual int32_t MicrophoneBoost(bool& enabled) const;
+
+  // Stereo support
+  virtual int32_t StereoPlayoutIsAvailable(bool& available);
+  virtual int32_t SetStereoPlayout(bool enable);
+  virtual int32_t StereoPlayout(bool& enabled) const;
+  virtual int32_t StereoRecordingIsAvailable(bool& available);
+  virtual int32_t SetStereoRecording(bool enable);
+  virtual int32_t StereoRecording(bool& enabled) const;
+
+  // Delay information and control
+  virtual int32_t SetPlayoutBuffer(const AudioDeviceModule::BufferType type,
+                                   uint16_t sizeMS);
+  virtual int32_t PlayoutBuffer(AudioDeviceModule::BufferType& type,
+                                uint16_t& sizeMS) const;
+  virtual int32_t PlayoutDelay(uint16_t& delayMS) const;
+  virtual int32_t RecordingDelay(uint16_t& delayMS) const;
+
+  // CPU load
+  virtual int32_t CPULoad(uint16_t& load) const;
+
+  virtual bool PlayoutWarning() const;
+  virtual bool PlayoutError() const;
+  virtual bool RecordingWarning() const;
+  virtual bool RecordingError() const;
+  virtual void ClearPlayoutWarning();
+  virtual void ClearPlayoutError();
+  virtual void ClearRecordingWarning();
+  virtual void ClearRecordingError();
+
+  virtual void AttachAudioBuffer(AudioDeviceBuffer* audioBuffer);
+
+ private:
+  virtual int32_t MicrophoneIsAvailable(bool& available);
+  virtual int32_t SpeakerIsAvailable(bool& available);
+
+  static void AtomicSet32(int32_t* theValue, int32_t newValue);
+  static int32_t AtomicGet32(int32_t* theValue);
+
+  static void logCAMsg(const TraceLevel level,
+                       const TraceModule module,
+                       const int32_t id,
+                       const char* msg,
+                       const char* err);
+
+  int32_t GetNumberDevices(const AudioObjectPropertyScope scope,
+                           AudioDeviceID scopedDeviceIds[],
+                           const uint32_t deviceListLength);
+
+  int32_t GetDeviceName(const AudioObjectPropertyScope scope,
+                        const uint16_t index,
+                        char* name);
+
+  int32_t InitDevice(uint16_t userDeviceIndex,
+                     AudioDeviceID& deviceId,
+                     bool isInput);
+
+  // Always work with our preferred playout format inside VoE.
+  // Then convert the output to the OS setting using an AudioConverter.
+  OSStatus SetDesiredPlayoutFormat();
+
+  static OSStatus objectListenerProc(
+      AudioObjectID objectId,
+      UInt32 numberAddresses,
+      const AudioObjectPropertyAddress addresses[],
+      void* clientData);
+
+  OSStatus implObjectListenerProc(AudioObjectID objectId,
+                                  UInt32 numberAddresses,
+                                  const AudioObjectPropertyAddress addresses[]);
+
+  int32_t HandleDeviceChange();
+
+  int32_t HandleStreamFormatChange(AudioObjectID objectId,
+                                   AudioObjectPropertyAddress propertyAddress);
+
+  int32_t HandleDataSourceChange(AudioObjectID objectId,
                                  AudioObjectPropertyAddress propertyAddress);
 
-    int32_t
-        HandleDataSourceChange(AudioObjectID objectId,
-                               AudioObjectPropertyAddress propertyAddress);
-
-    int32_t
-        HandleProcessorOverload(AudioObjectPropertyAddress propertyAddress);
-
-    static OSStatus deviceIOProc(AudioDeviceID device,
-                                 const AudioTimeStamp *now,
-                                 const AudioBufferList *inputData,
-                                 const AudioTimeStamp *inputTime,
-                                 AudioBufferList *outputData,
+  int32_t HandleProcessorOverload(AudioObjectPropertyAddress propertyAddress);
+
+  static OSStatus deviceIOProc(AudioDeviceID device,
+                               const AudioTimeStamp* now,
+                               const AudioBufferList* inputData,
+                               const AudioTimeStamp* inputTime,
+                               AudioBufferList* outputData,
+                               const AudioTimeStamp* outputTime,
+                               void* clientData);
+
+  static OSStatus outConverterProc(
+      AudioConverterRef audioConverter,
+      UInt32* numberDataPackets,
+      AudioBufferList* data,
+      AudioStreamPacketDescription** dataPacketDescription,
+      void* userData);
+
+  static OSStatus inDeviceIOProc(AudioDeviceID device,
+                                 const AudioTimeStamp* now,
+                                 const AudioBufferList* inputData,
+                                 const AudioTimeStamp* inputTime,
+                                 AudioBufferList* outputData,
                                  const AudioTimeStamp* outputTime,
-                                 void *clientData);
-
-    static OSStatus
-        outConverterProc(AudioConverterRef audioConverter,
-                         UInt32 *numberDataPackets, AudioBufferList *data,
-                         AudioStreamPacketDescription **dataPacketDescription,
-                         void *userData);
-
-    static OSStatus inDeviceIOProc(AudioDeviceID device,
-                                   const AudioTimeStamp *now,
-                                   const AudioBufferList *inputData,
-                                   const AudioTimeStamp *inputTime,
-                                   AudioBufferList *outputData,
-                                   const AudioTimeStamp *outputTime,
-                                   void *clientData);
-
-    static OSStatus
-        inConverterProc(AudioConverterRef audioConverter,
-                        UInt32 *numberDataPackets, AudioBufferList *data,
-                        AudioStreamPacketDescription **dataPacketDescription,
-                        void *inUserData);
-
-    OSStatus implDeviceIOProc(const AudioBufferList *inputData,
-                              const AudioTimeStamp *inputTime,
-                              AudioBufferList *outputData,
-                              const AudioTimeStamp *outputTime);
-
-    OSStatus implOutConverterProc(UInt32 *numberDataPackets,
-                                  AudioBufferList *data);
-
-    OSStatus implInDeviceIOProc(const AudioBufferList *inputData,
-                                const AudioTimeStamp *inputTime);
-
-    OSStatus implInConverterProc(UInt32 *numberDataPackets,
-                                 AudioBufferList *data);
-
-    static bool RunCapture(void*);
-    static bool RunRender(void*);
-    bool CaptureWorkerThread();
-    bool RenderWorkerThread();
-
-    bool KeyPressed();
-
-    AudioDeviceBuffer* _ptrAudioBuffer;
-
-    CriticalSectionWrapper& _critSect;
-
-    EventWrapper& _stopEventRec;
-    EventWrapper& _stopEvent;
-
-    // TODO(pbos): Replace with direct members, just start/stop, no need to
-    // recreate the thread.
-    // Only valid/running between calls to StartRecording and StopRecording.
-    rtc::scoped_ptr<rtc::PlatformThread> capture_worker_thread_;
-
-    // Only valid/running between calls to StartPlayout and StopPlayout.
-    rtc::scoped_ptr<rtc::PlatformThread> render_worker_thread_;
-
-    int32_t _id;
-
-    AudioMixerManagerMac _mixerManager;
-
-    uint16_t _inputDeviceIndex;
-    uint16_t _outputDeviceIndex;
-    AudioDeviceID _inputDeviceID;
-    AudioDeviceID _outputDeviceID;
+                                 void* clientData);
+
+  static OSStatus inConverterProc(
+      AudioConverterRef audioConverter,
+      UInt32* numberDataPackets,
+      AudioBufferList* data,
+      AudioStreamPacketDescription** dataPacketDescription,
+      void* inUserData);
+
+  OSStatus implDeviceIOProc(const AudioBufferList* inputData,
+                            const AudioTimeStamp* inputTime,
+                            AudioBufferList* outputData,
+                            const AudioTimeStamp* outputTime);
+
+  OSStatus implOutConverterProc(UInt32* numberDataPackets,
+                                AudioBufferList* data);
+
+  OSStatus implInDeviceIOProc(const AudioBufferList* inputData,
+                              const AudioTimeStamp* inputTime);
+
+  OSStatus implInConverterProc(UInt32* numberDataPackets,
+                               AudioBufferList* data);
+
+  static bool RunCapture(void*);
+  static bool RunRender(void*);
+  bool CaptureWorkerThread();
+  bool RenderWorkerThread();
+
+  bool KeyPressed();
+
+  AudioDeviceBuffer* _ptrAudioBuffer;
+
+  CriticalSectionWrapper& _critSect;
+
+  EventWrapper& _stopEventRec;
+  EventWrapper& _stopEvent;
+
+  // TODO(pbos): Replace with direct members, just start/stop, no need to
+  // recreate the thread.
+  // Only valid/running between calls to StartRecording and StopRecording.
+  rtc::scoped_ptr<rtc::PlatformThread> capture_worker_thread_;
+
+  // Only valid/running between calls to StartPlayout and StopPlayout.
+  rtc::scoped_ptr<rtc::PlatformThread> render_worker_thread_;
+
+  int32_t _id;
+
+  AudioMixerManagerMac _mixerManager;
+
+  uint16_t _inputDeviceIndex;
+  uint16_t _outputDeviceIndex;
+  AudioDeviceID _inputDeviceID;
+  AudioDeviceID _outputDeviceID;
 #if __MAC_OS_X_VERSION_MAX_ALLOWED >= 1050
-    AudioDeviceIOProcID _inDeviceIOProcID;
-    AudioDeviceIOProcID _deviceIOProcID;
+  AudioDeviceIOProcID _inDeviceIOProcID;
+  AudioDeviceIOProcID _deviceIOProcID;
 #endif
-    bool _inputDeviceIsSpecified;
-    bool _outputDeviceIsSpecified;
-
-    uint8_t _recChannels;
-    uint8_t _playChannels;
-
-    Float32* _captureBufData;
-    SInt16* _renderBufData;
-
-    SInt16 _renderConvertData[PLAY_BUF_SIZE_IN_SAMPLES];
-
-    AudioDeviceModule::BufferType _playBufType;
-
-    bool _initialized;
-    bool _isShutDown;
-    bool _recording;
-    bool _playing;
-    bool _recIsInitialized;
-    bool _playIsInitialized;
-    bool _AGC;
-
-    // Atomically set varaibles
-    int32_t _renderDeviceIsAlive;
-    int32_t _captureDeviceIsAlive;
-
-    bool _twoDevices;
-    bool _doStop; // For play if not shared device or play+rec if shared device
-    bool _doStopRec; // For rec if not shared device
-    bool _macBookPro;
-    bool _macBookProPanRight;
-
-    AudioConverterRef _captureConverter;
-    AudioConverterRef _renderConverter;
-
-    AudioStreamBasicDescription _outStreamFormat;
-    AudioStreamBasicDescription _outDesiredFormat;
-    AudioStreamBasicDescription _inStreamFormat;
-    AudioStreamBasicDescription _inDesiredFormat;
-
-    uint32_t _captureLatencyUs;
-    uint32_t _renderLatencyUs;
-
-    // Atomically set variables
-    mutable int32_t _captureDelayUs;
-    mutable int32_t _renderDelayUs;
-
-    int32_t _renderDelayOffsetSamples;
-
-    uint16_t _playBufDelayFixed; // fixed playback delay
-
-    uint16_t _playWarning;
-    uint16_t _playError;
-    uint16_t _recWarning;
-    uint16_t _recError;
-
-    PaUtilRingBuffer* _paCaptureBuffer;
-    PaUtilRingBuffer* _paRenderBuffer;
-
-    semaphore_t _renderSemaphore;
-    semaphore_t _captureSemaphore;
-
-    int _captureBufSizeSamples;
-    int _renderBufSizeSamples;
-
-    // Typing detection
-    // 0x5c is key "9", after that comes function keys.
-    bool prev_key_state_[0x5d];
-
-    int get_mic_volume_counter_ms_;
+  bool _inputDeviceIsSpecified;
+  bool _outputDeviceIsSpecified;
+
+  uint8_t _recChannels;
+  uint8_t _playChannels;
+
+  Float32* _captureBufData;
+  SInt16* _renderBufData;
+
+  SInt16 _renderConvertData[PLAY_BUF_SIZE_IN_SAMPLES];
+
+  AudioDeviceModule::BufferType _playBufType;
+
+  bool _initialized;
+  bool _isShutDown;
+  bool _recording;
+  bool _playing;
+  bool _recIsInitialized;
+  bool _playIsInitialized;
+  bool _AGC;
+
+  // Atomically set varaibles
+  int32_t _renderDeviceIsAlive;
+  int32_t _captureDeviceIsAlive;
+
+  bool _twoDevices;
+  bool _doStop;  // For play if not shared device or play+rec if shared device
+  bool _doStopRec;  // For rec if not shared device
+  bool _macBookPro;
+  bool _macBookProPanRight;
+
+  AudioConverterRef _captureConverter;
+  AudioConverterRef _renderConverter;
+
+  AudioStreamBasicDescription _outStreamFormat;
+  AudioStreamBasicDescription _outDesiredFormat;
+  AudioStreamBasicDescription _inStreamFormat;
+  AudioStreamBasicDescription _inDesiredFormat;
+
+  uint32_t _captureLatencyUs;
+  uint32_t _renderLatencyUs;
+
+  // Atomically set variables
+  mutable int32_t _captureDelayUs;
+  mutable int32_t _renderDelayUs;
+
+  int32_t _renderDelayOffsetSamples;
+
+  uint16_t _playBufDelayFixed;  // fixed playback delay
+
+  uint16_t _playWarning;
+  uint16_t _playError;
+  uint16_t _recWarning;
+  uint16_t _recError;
+
+  PaUtilRingBuffer* _paCaptureBuffer;
+  PaUtilRingBuffer* _paRenderBuffer;
+
+  semaphore_t _renderSemaphore;
+  semaphore_t _captureSemaphore;
+
+  int _captureBufSizeSamples;
+  int _renderBufSizeSamples;
+
+  // Typing detection
+  // 0x5c is key "9", after that comes function keys.
+  bool prev_key_state_[0x5d];
+
+  int get_mic_volume_counter_ms_;
 };
 
 }  // namespace webrtc
 
 #endif  // MODULES_AUDIO_DEVICE_MAIN_SOURCE_MAC_AUDIO_DEVICE_MAC_H_