Cleanup of iOS AudioDevice implementation

webrtc/modules/audio_device/audio_device_impl.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_IMPL_H
 #define WEBRTC_AUDIO_DEVICE_AUDIO_DEVICE_IMPL_H
 
 #if defined(WEBRTC_INCLUDE_INTERNAL_AUDIO_DEVICE)
 
 #include "webrtc/base/checks.h"
 #include "webrtc/base/scoped_ptr.h"
 #include "webrtc/modules/audio_device/audio_device_buffer.h"
 #include "webrtc/modules/audio_device/include/audio_device.h"
 
-namespace webrtc
-{
+namespace webrtc {
 
 class AudioDeviceGeneric;
 class AudioManager;
 class CriticalSectionWrapper;
 
-class AudioDeviceModuleImpl : public AudioDeviceModule
-{
-public:
-    enum PlatformType
-    {
-        kPlatformNotSupported = 0,
-        kPlatformWin32 = 1,
-        kPlatformWinCe = 2,
-        kPlatformLinux = 3,
-        kPlatformMac = 4,
-        kPlatformAndroid = 5,
-        kPlatformIOS = 6
-    };
-
-    int32_t CheckPlatform();
-    int32_t CreatePlatformSpecificObjects();
-    int32_t AttachAudioBuffer();
-
-    AudioDeviceModuleImpl(const int32_t id, const AudioLayer audioLayer);
-    virtual ~AudioDeviceModuleImpl();
-
-public: // RefCountedModule
- int64_t TimeUntilNextProcess() override;
- int32_t Process() override;
-
-public:
-    // Factory methods (resource allocation/deallocation)
-    static AudioDeviceModule* Create(
-        const int32_t id,
-        const AudioLayer audioLayer = kPlatformDefaultAudio);
-
-    // Retrieve the currently utilized audio layer
-    int32_t ActiveAudioLayer(AudioLayer* audioLayer) const override;
-
-    // Error handling
-    ErrorCode LastError() const override;
-    int32_t RegisterEventObserver(AudioDeviceObserver* eventCallback) override;
-
-    // Full-duplex transportation of PCM audio
-    int32_t RegisterAudioCallback(AudioTransport* audioCallback) override;
-
-    // Main initializaton and termination
-    int32_t Init() override;
-    int32_t Terminate() override;
-    bool Initialized() const override;
-
-    // Device enumeration
-    int16_t PlayoutDevices() override;
-    int16_t RecordingDevices() override;
-    int32_t PlayoutDeviceName(uint16_t index,
+class AudioDeviceModuleImpl : public AudioDeviceModule {
+ public:
+  enum PlatformType {
+    kPlatformNotSupported = 0,
+    kPlatformWin32 = 1,
+    kPlatformWinCe = 2,
+    kPlatformLinux = 3,
+    kPlatformMac = 4,
+    kPlatformAndroid = 5,
+    kPlatformIOS = 6
+  };
+
+  int32_t CheckPlatform();
+  int32_t CreatePlatformSpecificObjects();
+  int32_t AttachAudioBuffer();
+
+  AudioDeviceModuleImpl(const int32_t id, const AudioLayer audioLayer);
+  virtual ~AudioDeviceModuleImpl();
+
+  int64_t TimeUntilNextProcess() override;
+  int32_t Process() override;
+
+  // Factory methods (resource allocation/deallocation)
+  static AudioDeviceModule* Create(
+      const int32_t id,
+      const AudioLayer audioLayer = kPlatformDefaultAudio);
+
+  // Retrieve the currently utilized audio layer
+  int32_t ActiveAudioLayer(AudioLayer* audioLayer) const override;
+
+  // Error handling
+  ErrorCode LastError() const override;
+  int32_t RegisterEventObserver(AudioDeviceObserver* eventCallback) override;
+
+  // Full-duplex transportation of PCM audio
+  int32_t RegisterAudioCallback(AudioTransport* audioCallback) override;
+
+  // Main initializaton and termination
+  int32_t Init() override;
+  int32_t Terminate() override;
+  bool Initialized() const override;
+
+  // Device enumeration
+  int16_t PlayoutDevices() override;
+  int16_t RecordingDevices() override;
+  int32_t PlayoutDeviceName(uint16_t index,
+                            char name[kAdmMaxDeviceNameSize],
+                            char guid[kAdmMaxGuidSize]) override;
+  int32_t RecordingDeviceName(uint16_t index,
                               char name[kAdmMaxDeviceNameSize],
                               char guid[kAdmMaxGuidSize]) override;
-    int32_t RecordingDeviceName(uint16_t index,
-                                char name[kAdmMaxDeviceNameSize],
-                                char guid[kAdmMaxGuidSize]) override;
-
-    // Device selection
-    int32_t SetPlayoutDevice(uint16_t index) override;
-    int32_t SetPlayoutDevice(WindowsDeviceType device) override;
-    int32_t SetRecordingDevice(uint16_t index) override;
-    int32_t SetRecordingDevice(WindowsDeviceType device) override;
-
-    // Audio transport initialization
-    int32_t PlayoutIsAvailable(bool* available) override;
-    int32_t InitPlayout() override;
-    bool PlayoutIsInitialized() const override;
-    int32_t RecordingIsAvailable(bool* available) override;
-    int32_t InitRecording() override;
-    bool RecordingIsInitialized() const override;
-
-    // Audio transport control
-    int32_t StartPlayout() override;
-    int32_t StopPlayout() override;
-    bool Playing() const override;
-    int32_t StartRecording() override;
-    int32_t StopRecording() override;
-    bool Recording() const override;
-
-    // Microphone Automatic Gain Control (AGC)
-    int32_t SetAGC(bool enable) override;
-    bool AGC() const override;
-
-    // Volume control based on the Windows Wave API (Windows only)
-    int32_t SetWaveOutVolume(uint16_t volumeLeft,
-                             uint16_t volumeRight) override;
-    int32_t WaveOutVolume(uint16_t* volumeLeft,
-                          uint16_t* volumeRight) const override;
-
-    // Audio mixer initialization
-    int32_t InitSpeaker() override;
-    bool SpeakerIsInitialized() const override;
-    int32_t InitMicrophone() override;
-    bool MicrophoneIsInitialized() const override;
-
-    // Speaker volume controls
-    int32_t SpeakerVolumeIsAvailable(bool* available) override;
-    int32_t SetSpeakerVolume(uint32_t volume) override;
-    int32_t SpeakerVolume(uint32_t* volume) const override;
-    int32_t MaxSpeakerVolume(uint32_t* maxVolume) const override;
-    int32_t MinSpeakerVolume(uint32_t* minVolume) const override;
-    int32_t SpeakerVolumeStepSize(uint16_t* stepSize) const override;
-
-    // Microphone volume controls
-    int32_t MicrophoneVolumeIsAvailable(bool* available) override;
-    int32_t SetMicrophoneVolume(uint32_t volume) override;
-    int32_t MicrophoneVolume(uint32_t* volume) const override;
-    int32_t MaxMicrophoneVolume(uint32_t* maxVolume) const override;
-    int32_t MinMicrophoneVolume(uint32_t* minVolume) const override;
-    int32_t MicrophoneVolumeStepSize(uint16_t* stepSize) const override;
-
-    // Speaker mute control
-    int32_t SpeakerMuteIsAvailable(bool* available) override;
-    int32_t SetSpeakerMute(bool enable) override;
-    int32_t SpeakerMute(bool* enabled) const override;
-
-    // Microphone mute control
-    int32_t MicrophoneMuteIsAvailable(bool* available) override;
-    int32_t SetMicrophoneMute(bool enable) override;
-    int32_t MicrophoneMute(bool* enabled) const override;
-
-    // Microphone boost control
-    int32_t MicrophoneBoostIsAvailable(bool* available) override;
-    int32_t SetMicrophoneBoost(bool enable) override;
-    int32_t MicrophoneBoost(bool* enabled) const override;
-
-    // Stereo support
-    int32_t StereoPlayoutIsAvailable(bool* available) const override;
-    int32_t SetStereoPlayout(bool enable) override;
-    int32_t StereoPlayout(bool* enabled) const override;
-    int32_t StereoRecordingIsAvailable(bool* available) const override;
-    int32_t SetStereoRecording(bool enable) override;
-    int32_t StereoRecording(bool* enabled) const override;
-    int32_t SetRecordingChannel(const ChannelType channel) override;
-    int32_t RecordingChannel(ChannelType* channel) const override;
-
-    // Delay information and control
-    int32_t SetPlayoutBuffer(const BufferType type,
-                             uint16_t sizeMS = 0) override;
-    int32_t PlayoutBuffer(BufferType* type, uint16_t* sizeMS) const override;
-    int32_t PlayoutDelay(uint16_t* delayMS) const override;
-    int32_t RecordingDelay(uint16_t* delayMS) const override;
-
-    // CPU load
-    int32_t CPULoad(uint16_t* load) const override;
-
-    // Recording of raw PCM data
-    int32_t StartRawOutputFileRecording(
-        const char pcmFileNameUTF8[kAdmMaxFileNameSize]) override;
-    int32_t StopRawOutputFileRecording() override;
-    int32_t StartRawInputFileRecording(
-        const char pcmFileNameUTF8[kAdmMaxFileNameSize]) override;
-    int32_t StopRawInputFileRecording() override;
-
-    // Native sample rate controls (samples/sec)
-    int32_t SetRecordingSampleRate(const uint32_t samplesPerSec) override;
-    int32_t RecordingSampleRate(uint32_t* samplesPerSec) const override;
-    int32_t SetPlayoutSampleRate(const uint32_t samplesPerSec) override;
-    int32_t PlayoutSampleRate(uint32_t* samplesPerSec) const override;
-
-    // Mobile device specific functions
-    int32_t ResetAudioDevice() override;
-    int32_t SetLoudspeakerStatus(bool enable) override;
-    int32_t GetLoudspeakerStatus(bool* enabled) const override;
-
-    bool BuiltInAECIsAvailable() const override;
-
-    int32_t EnableBuiltInAEC(bool enable) override;
-    bool BuiltInAECIsEnabled() const override;
-
-public:
-    int32_t Id() {return _id;}
+
+  // Device selection
+  int32_t SetPlayoutDevice(uint16_t index) override;
+  int32_t SetPlayoutDevice(WindowsDeviceType device) override;
+  int32_t SetRecordingDevice(uint16_t index) override;
+  int32_t SetRecordingDevice(WindowsDeviceType device) override;
+
+  // Audio transport initialization
+  int32_t PlayoutIsAvailable(bool* available) override;
+  int32_t InitPlayout() override;
+  bool PlayoutIsInitialized() const override;
+  int32_t RecordingIsAvailable(bool* available) override;
+  int32_t InitRecording() override;
+  bool RecordingIsInitialized() const override;
+
+  // Audio transport control
+  int32_t StartPlayout() override;
+  int32_t StopPlayout() override;
+  bool Playing() const override;
+  int32_t StartRecording() override;
+  int32_t StopRecording() override;
+  bool Recording() const override;
+
+  // Microphone Automatic Gain Control (AGC)
+  int32_t SetAGC(bool enable) override;
+  bool AGC() const override;
+
+  // Volume control based on the Windows Wave API (Windows only)
+  int32_t SetWaveOutVolume(uint16_t volumeLeft, uint16_t volumeRight) override;
+  int32_t WaveOutVolume(uint16_t* volumeLeft,
+                        uint16_t* volumeRight) const override;
+
+  // Audio mixer initialization
+  int32_t InitSpeaker() override;
+  bool SpeakerIsInitialized() const override;
+  int32_t InitMicrophone() override;
+  bool MicrophoneIsInitialized() const override;
+
+  // Speaker volume controls
+  int32_t SpeakerVolumeIsAvailable(bool* available) override;
+  int32_t SetSpeakerVolume(uint32_t volume) override;
+  int32_t SpeakerVolume(uint32_t* volume) const override;
+  int32_t MaxSpeakerVolume(uint32_t* maxVolume) const override;
+  int32_t MinSpeakerVolume(uint32_t* minVolume) const override;
+  int32_t SpeakerVolumeStepSize(uint16_t* stepSize) const override;
+
+  // Microphone volume controls
+  int32_t MicrophoneVolumeIsAvailable(bool* available) override;
+  int32_t SetMicrophoneVolume(uint32_t volume) override;
+  int32_t MicrophoneVolume(uint32_t* volume) const override;
+  int32_t MaxMicrophoneVolume(uint32_t* maxVolume) const override;
+  int32_t MinMicrophoneVolume(uint32_t* minVolume) const override;
+  int32_t MicrophoneVolumeStepSize(uint16_t* stepSize) const override;
+
+  // Speaker mute control
+  int32_t SpeakerMuteIsAvailable(bool* available) override;
+  int32_t SetSpeakerMute(bool enable) override;
+  int32_t SpeakerMute(bool* enabled) const override;
+
+  // Microphone mute control
+  int32_t MicrophoneMuteIsAvailable(bool* available) override;
+  int32_t SetMicrophoneMute(bool enable) override;
+  int32_t MicrophoneMute(bool* enabled) const override;
+
+  // Microphone boost control
+  int32_t MicrophoneBoostIsAvailable(bool* available) override;
+  int32_t SetMicrophoneBoost(bool enable) override;
+  int32_t MicrophoneBoost(bool* enabled) const override;
+
+  // Stereo support
+  int32_t StereoPlayoutIsAvailable(bool* available) const override;
+  int32_t SetStereoPlayout(bool enable) override;
+  int32_t StereoPlayout(bool* enabled) const override;
+  int32_t StereoRecordingIsAvailable(bool* available) const override;
+  int32_t SetStereoRecording(bool enable) override;
+  int32_t StereoRecording(bool* enabled) const override;
+  int32_t SetRecordingChannel(const ChannelType channel) override;
+  int32_t RecordingChannel(ChannelType* channel) const override;
+
+  // Delay information and control
+  int32_t SetPlayoutBuffer(const BufferType type, uint16_t sizeMS = 0) override;
+  int32_t PlayoutBuffer(BufferType* type, uint16_t* sizeMS) const override;
+  int32_t PlayoutDelay(uint16_t* delayMS) const override;
+  int32_t RecordingDelay(uint16_t* delayMS) const override;
+
+  // CPU load
+  int32_t CPULoad(uint16_t* load) const override;
+
+  // Recording of raw PCM data
+  int32_t StartRawOutputFileRecording(
+      const char pcmFileNameUTF8[kAdmMaxFileNameSize]) override;
+  int32_t StopRawOutputFileRecording() override;
+  int32_t StartRawInputFileRecording(
+      const char pcmFileNameUTF8[kAdmMaxFileNameSize]) override;
+  int32_t StopRawInputFileRecording() override;
+
+  // Native sample rate controls (samples/sec)
+  int32_t SetRecordingSampleRate(const uint32_t samplesPerSec) override;
+  int32_t RecordingSampleRate(uint32_t* samplesPerSec) const override;
+  int32_t SetPlayoutSampleRate(const uint32_t samplesPerSec) override;
+  int32_t PlayoutSampleRate(uint32_t* samplesPerSec) const override;
+
+  // Mobile device specific functions
+  int32_t ResetAudioDevice() override;
+  int32_t SetLoudspeakerStatus(bool enable) override;
+  int32_t GetLoudspeakerStatus(bool* enabled) const override;
+
+  bool BuiltInAECIsAvailable() const override;
+
+  int32_t EnableBuiltInAEC(bool enable) override;
+  bool BuiltInAECIsEnabled() const override;
+
+  int GetPlayoutAudioParameters(AudioParameters* params) const override;
+  int GetRecordAudioParameters(AudioParameters* params) const override;
+
+  int32_t Id() { return _id; }
 #if defined(WEBRTC_ANDROID)
-    // Only use this acccessor for test purposes on Android.
-    AudioManager* GetAndroidAudioManagerForTest() {
-      return _audioManagerAndroid.get();
-    }
+  // Only use this acccessor for test purposes on Android.
+  AudioManager* GetAndroidAudioManagerForTest() {
+    return _audioManagerAndroid.get();
+  }
 #endif
-    AudioDeviceBuffer* GetAudioDeviceBuffer() {
-      return &_audioDeviceBuffer;
-    }
-
-private:
-    PlatformType Platform() const;
-    AudioLayer PlatformAudioLayer() const;
-
-private:
-    CriticalSectionWrapper&      _critSect;
-    CriticalSectionWrapper&      _critSectEventCb;
-    CriticalSectionWrapper&      _critSectAudioCb;
-
-    AudioDeviceObserver*         _ptrCbAudioDeviceObserver;
-
-    AudioDeviceGeneric*          _ptrAudioDevice;
-
-    AudioDeviceBuffer            _audioDeviceBuffer;
+  AudioDeviceBuffer* GetAudioDeviceBuffer() { return &_audioDeviceBuffer; }
+
+ private:
+  PlatformType Platform() const;
+  AudioLayer PlatformAudioLayer() const;
+
+  CriticalSectionWrapper& _critSect;
+  CriticalSectionWrapper& _critSectEventCb;
+  CriticalSectionWrapper& _critSectAudioCb;
+
+  AudioDeviceObserver* _ptrCbAudioDeviceObserver;
+
+  AudioDeviceGeneric* _ptrAudioDevice;
+
+  AudioDeviceBuffer _audioDeviceBuffer;
 #if defined(WEBRTC_ANDROID)
-    rtc::scoped_ptr<AudioManager> _audioManagerAndroid;
+  rtc::scoped_ptr<AudioManager> _audioManagerAndroid;
 #endif
-    int32_t                      _id;
-    AudioLayer                   _platformAudioLayer;
-    int64_t                      _lastProcessTime;
-    PlatformType                 _platformType;
-    bool                         _initialized;
-    mutable ErrorCode            _lastError;
+  int32_t _id;
+  AudioLayer _platformAudioLayer;
+  int64_t _lastProcessTime;
+  PlatformType _platformType;
+  bool _initialized;
+  mutable ErrorCode _lastError;
 };
 
 }  // namespace webrtc
 
 #endif  // defined(WEBRTC_INCLUDE_INTERNAL_AUDIO_DEVICE)
 
 #endif  // WEBRTC_MODULES_INTERFACE_AUDIO_DEVICE_IMPL_H_