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/*
* 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_INCLUDE_AUDIO_DEVICE_H_
#define MODULES_AUDIO_DEVICE_INCLUDE_AUDIO_DEVICE_H_
#include "webrtc/modules/audio_device/include/audio_device_defines.h"
#include "webrtc/modules/interface/module.h"
namespace webrtc {
class AudioDeviceModule : public RefCountedModule {
public:
enum ErrorCode {
kAdmErrNone = 0,
kAdmErrArgument = 1
};
enum AudioLayer {
kPlatformDefaultAudio = 0,
kWindowsWaveAudio = 1,
kWindowsCoreAudio = 2,
kLinuxAlsaAudio = 3,
kLinuxPulseAudio = 4,
kAndroidJavaAudio = 5,
kAndroidJavaInputAndOpenSLESOutputAudio = 6,
kDummyAudio = 8
};
enum WindowsDeviceType {
kDefaultCommunicationDevice = -1,
kDefaultDevice = -2
};
enum BufferType {
kFixedBufferSize = 0,
kAdaptiveBufferSize = 1
};
enum ChannelType {
kChannelLeft = 0,
kChannelRight = 1,
kChannelBoth = 2
};
public:
// Retrieve the currently utilized audio layer
virtual int32_t ActiveAudioLayer(AudioLayer* audioLayer) const = 0;
// Error handling
virtual ErrorCode LastError() const = 0;
virtual int32_t RegisterEventObserver(AudioDeviceObserver* eventCallback) = 0;
// Full-duplex transportation of PCM audio
virtual int32_t RegisterAudioCallback(AudioTransport* audioCallback) = 0;
// Main initialization and termination
virtual int32_t Init() = 0;
virtual int32_t Terminate() = 0;
virtual bool Initialized() const = 0;
// Device enumeration
virtual int16_t PlayoutDevices() = 0;
virtual int16_t RecordingDevices() = 0;
virtual int32_t PlayoutDeviceName(uint16_t index,
char name[kAdmMaxDeviceNameSize],
char guid[kAdmMaxGuidSize]) = 0;
virtual int32_t RecordingDeviceName(uint16_t index,
char name[kAdmMaxDeviceNameSize],
char guid[kAdmMaxGuidSize]) = 0;
// Device selection
virtual int32_t SetPlayoutDevice(uint16_t index) = 0;
virtual int32_t SetPlayoutDevice(WindowsDeviceType device) = 0;
virtual int32_t SetRecordingDevice(uint16_t index) = 0;
virtual int32_t SetRecordingDevice(WindowsDeviceType device) = 0;
// Audio transport initialization
virtual int32_t PlayoutIsAvailable(bool* available) = 0;
virtual int32_t InitPlayout() = 0;
virtual bool PlayoutIsInitialized() const = 0;
virtual int32_t RecordingIsAvailable(bool* available) = 0;
virtual int32_t InitRecording() = 0;
virtual bool RecordingIsInitialized() const = 0;
// Audio transport control
virtual int32_t StartPlayout() = 0;
virtual int32_t StopPlayout() = 0;
virtual bool Playing() const = 0;
virtual int32_t StartRecording() = 0;
virtual int32_t StopRecording() = 0;
virtual bool Recording() const = 0;
// Microphone Automatic Gain Control (AGC)
virtual int32_t SetAGC(bool enable) = 0;
virtual bool AGC() const = 0;
// Volume control based on the Windows Wave API (Windows only)
virtual int32_t SetWaveOutVolume(uint16_t volumeLeft,
uint16_t volumeRight) = 0;
virtual int32_t WaveOutVolume(uint16_t* volumeLeft,
uint16_t* volumeRight) const = 0;
// Audio mixer initialization
virtual int32_t InitSpeaker() = 0;
virtual bool SpeakerIsInitialized() const = 0;
virtual int32_t InitMicrophone() = 0;
virtual bool MicrophoneIsInitialized() const = 0;
// Speaker volume controls
virtual int32_t SpeakerVolumeIsAvailable(bool* available) = 0;
virtual int32_t SetSpeakerVolume(uint32_t volume) = 0;
virtual int32_t SpeakerVolume(uint32_t* volume) const = 0;
virtual int32_t MaxSpeakerVolume(uint32_t* maxVolume) const = 0;
virtual int32_t MinSpeakerVolume(uint32_t* minVolume) const = 0;
virtual int32_t SpeakerVolumeStepSize(uint16_t* stepSize) const = 0;
// Microphone volume controls
virtual int32_t MicrophoneVolumeIsAvailable(bool* available) = 0;
virtual int32_t SetMicrophoneVolume(uint32_t volume) = 0;
virtual int32_t MicrophoneVolume(uint32_t* volume) const = 0;
virtual int32_t MaxMicrophoneVolume(uint32_t* maxVolume) const = 0;
virtual int32_t MinMicrophoneVolume(uint32_t* minVolume) const = 0;
virtual int32_t MicrophoneVolumeStepSize(uint16_t* stepSize) const = 0;
// Speaker mute control
virtual int32_t SpeakerMuteIsAvailable(bool* available) = 0;
virtual int32_t SetSpeakerMute(bool enable) = 0;
virtual int32_t SpeakerMute(bool* enabled) const = 0;
// Microphone mute control
virtual int32_t MicrophoneMuteIsAvailable(bool* available) = 0;
virtual int32_t SetMicrophoneMute(bool enable) = 0;
virtual int32_t MicrophoneMute(bool* enabled) const = 0;
// Microphone boost control
virtual int32_t MicrophoneBoostIsAvailable(bool* available) = 0;
virtual int32_t SetMicrophoneBoost(bool enable) = 0;
virtual int32_t MicrophoneBoost(bool* enabled) const = 0;
// Stereo support
virtual int32_t StereoPlayoutIsAvailable(bool* available) const = 0;
virtual int32_t SetStereoPlayout(bool enable) = 0;
virtual int32_t StereoPlayout(bool* enabled) const = 0;
virtual int32_t StereoRecordingIsAvailable(bool* available) const = 0;
virtual int32_t SetStereoRecording(bool enable) = 0;
virtual int32_t StereoRecording(bool* enabled) const = 0;
virtual int32_t SetRecordingChannel(const ChannelType channel) = 0;
virtual int32_t RecordingChannel(ChannelType* channel) const = 0;
// Delay information and control
virtual int32_t SetPlayoutBuffer(const BufferType type,
uint16_t sizeMS = 0) = 0;
virtual int32_t PlayoutBuffer(BufferType* type, uint16_t* sizeMS) const = 0;
virtual int32_t PlayoutDelay(uint16_t* delayMS) const = 0;
virtual int32_t RecordingDelay(uint16_t* delayMS) const = 0;
// CPU load
virtual int32_t CPULoad(uint16_t* load) const = 0;
// Recording of raw PCM data
virtual int32_t StartRawOutputFileRecording(
const char pcmFileNameUTF8[kAdmMaxFileNameSize]) = 0;
virtual int32_t StopRawOutputFileRecording() = 0;
virtual int32_t StartRawInputFileRecording(
const char pcmFileNameUTF8[kAdmMaxFileNameSize]) = 0;
virtual int32_t StopRawInputFileRecording() = 0;
// Native sample rate controls (samples/sec)
virtual int32_t SetRecordingSampleRate(const uint32_t samplesPerSec) = 0;
virtual int32_t RecordingSampleRate(uint32_t* samplesPerSec) const = 0;
virtual int32_t SetPlayoutSampleRate(const uint32_t samplesPerSec) = 0;
virtual int32_t PlayoutSampleRate(uint32_t* samplesPerSec) const = 0;
// Mobile device specific functions
virtual int32_t ResetAudioDevice() = 0;
virtual int32_t SetLoudspeakerStatus(bool enable) = 0;
virtual int32_t GetLoudspeakerStatus(bool* enabled) const = 0;
// Only supported on Android.
// TODO(henrika): Make pure virtual after updating Chromium.
virtual bool BuiltInAECIsAvailable() const { return false; }
virtual bool BuiltInAGCIsAvailable() const { return false; }
virtual bool BuiltInNSIsAvailable() const { return false; }
// Enables the built-in audio effects. Only supported on Android.
// TODO(henrika): Make pure virtual after updating Chromium.
virtual int32_t EnableBuiltInAEC(bool enable) { return -1; }
virtual int32_t EnableBuiltInAGC(bool enable) { return -1; }
virtual int32_t EnableBuiltInNS(bool enable) { return -1; }
// Don't use.
virtual bool BuiltInAECIsEnabled() const { return false; }
// Only supported on iOS.
// TODO(henrika): Make pure virtual after updating Chromium.
virtual int GetPlayoutAudioParameters(AudioParameters* params) const {
return -1;
}
virtual int GetRecordAudioParameters(AudioParameters* params) const {
return -1;
}
protected:
virtual ~AudioDeviceModule() {}
};
AudioDeviceModule* CreateAudioDeviceModule(
int32_t id, AudioDeviceModule::AudioLayer audioLayer);
} // namespace webrtc
#endif // MODULES_AUDIO_DEVICE_INCLUDE_AUDIO_DEVICE_H_
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