text: /*
   *  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 MODULES_AUDIO_DEVICE_AUDIO_DEVICE_IMPL_H_
  #define MODULES_AUDIO_DEVICE_AUDIO_DEVICE_IMPL_H_
  
  #if defined(WEBRTC_INCLUDE_INTERNAL_AUDIO_DEVICE)
  
  #include <memory>
  
  #include "modules/audio_device/audio_device_buffer.h"
  #include BOSS_WEBRTC_U_modules__audio_device__include__audio_device_h //original-code:"modules/audio_device/include/audio_device.h"
  #include BOSS_WEBRTC_U_rtc_base__checks_h //original-code:"rtc_base/checks.h"
  #include BOSS_WEBRTC_U_rtc_base__criticalsection_h //original-code:"rtc_base/criticalsection.h"
  
  namespace webrtc {
  
  class AudioDeviceGeneric;
  class AudioManager;
  
  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 AudioLayer audioLayer);
    ~AudioDeviceModuleImpl() override;
  
    // Retrieve the currently utilized audio layer
    int32_t ActiveAudioLayer(AudioLayer* audioLayer) const 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;
  
    // 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;
  
    // 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;
  
    // 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;
  
    // 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;
  
    // 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;
  
    // Delay information and control
    int32_t PlayoutDelay(uint16_t* delayMS) const override;
  
    bool BuiltInAECIsAvailable() const override;
    int32_t EnableBuiltInAEC(bool enable) override;
    bool BuiltInAGCIsAvailable() const override;
    int32_t EnableBuiltInAGC(bool enable) override;
    bool BuiltInNSIsAvailable() const override;
    int32_t EnableBuiltInNS(bool enable) override;
  
  #if defined(WEBRTC_IOS)
    int GetPlayoutAudioParameters(AudioParameters* params) const override;
    int GetRecordAudioParameters(AudioParameters* params) const override;
  #endif  // WEBRTC_IOS
  
  #if defined(WEBRTC_ANDROID)
    // Only use this acccessor for test purposes on Android.
    AudioManager* GetAndroidAudioManagerForTest() {
      return audio_manager_android_.get();
    }
  #endif
    AudioDeviceBuffer* GetAudioDeviceBuffer() { return &audio_device_buffer_; }
  
   private:
    PlatformType Platform() const;
    AudioLayer PlatformAudioLayer() const;
  
    AudioLayer audio_layer_;
    PlatformType platform_type_ = kPlatformNotSupported;
    bool initialized_ = false;
  #if defined(WEBRTC_ANDROID)
    // Should be declared first to ensure that it outlives other resources.
    std::unique_ptr<AudioManager> audio_manager_android_;
  #endif
    AudioDeviceBuffer audio_device_buffer_;
    std::unique_ptr<AudioDeviceGeneric> audio_device_;
  };
  
  }  // namespace webrtc
  
  #endif  // defined(WEBRTC_INCLUDE_INTERNAL_AUDIO_DEVICE)
  
  #endif  // MODULES_AUDIO_DEVICE_AUDIO_DEVICE_IMPL_H_
  