audio_device_module_win.h

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/*

 *  Copyright (c) 2018 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_WIN_AUDIO_DEVICE_MODULE_WIN_H_

#define MODULES_AUDIO_DEVICE_WIN_AUDIO_DEVICE_MODULE_WIN_H_

#include <memory>

#include <string>

#include "api/audio/audio_device.h"

#include "api/scoped_refptr.h"

#include "api/task_queue/task_queue_factory.h"

namespace webrtc {

class AudioDeviceBuffer;

namespace webrtc_win {

// This interface represents the main input-related parts of the complete

// AudioDeviceModule interface.

class AudioInput {

 public:

  virtual ~AudioInput() {}

  virtual int Init() = 0;

  virtual int Terminate() = 0;

  virtual int NumDevices() const = 0;

  virtual int SetDevice(int index) = 0;

  virtual int SetDevice(AudioDeviceModule::WindowsDeviceType device) = 0;

  virtual int DeviceName(int index, std::string* name, std::string* guid) = 0;

  virtual void AttachAudioBuffer(AudioDeviceBuffer* audio_buffer) = 0;

  virtual bool RecordingIsInitialized() const = 0;

  virtual int InitRecording() = 0;

  virtual int StartRecording() = 0;

  virtual int StopRecording() = 0;

  virtual bool Recording() = 0;

  virtual int VolumeIsAvailable(bool* available) = 0;

  virtual int RestartRecording() = 0;

  virtual bool Restarting() const = 0;

  virtual int SetSampleRate(uint32_t sample_rate) = 0;

};

// This interface represents the main output-related parts of the complete

// AudioDeviceModule interface.

class AudioOutput {

 public:

  virtual ~AudioOutput() {}

  virtual int Init() = 0;

  virtual int Terminate() = 0;

  virtual int NumDevices() const = 0;

  virtual int SetDevice(int index) = 0;

  virtual int SetDevice(AudioDeviceModule::WindowsDeviceType device) = 0;

  virtual int DeviceName(int index, std::string* name, std::string* guid) = 0;

  virtual void AttachAudioBuffer(AudioDeviceBuffer* audio_buffer) = 0;

  virtual bool PlayoutIsInitialized() const = 0;

  virtual int InitPlayout() = 0;

  virtual int StartPlayout() = 0;

  virtual int StopPlayout() = 0;

  virtual bool Playing() = 0;

  virtual int VolumeIsAvailable(bool* available) = 0;

  virtual int RestartPlayout() = 0;

  virtual bool Restarting() const = 0;

  virtual int SetSampleRate(uint32_t sample_rate) = 0;

};

// Combines an AudioInput and an AudioOutput implementation to build an

// AudioDeviceModule. Hides most parts of the full ADM interface.

rtc::scoped_refptr<AudioDeviceModuleForTest>

CreateWindowsCoreAudioAudioDeviceModuleFromInputAndOutput(

    std::unique_ptr<AudioInput> audio_input,

    std::unique_ptr<AudioOutput> audio_output,

    TaskQueueFactory* task_queue_factory);

}  // namespace webrtc_win

}  // namespace webrtc

#endif  // MODULES_AUDIO_DEVICE_WIN_AUDIO_DEVICE_MODULE_WIN_H_