217 lines
8.0 KiB
C++
217 lines
8.0 KiB
C++
/*
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* Copyright (c) 2011 The WebRTC project authors. All Rights Reserved.
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*
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* Use of this source code is governed by a BSD-style license
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* that can be found in the LICENSE file in the root of the source
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* tree. An additional intellectual property rights grant can be found
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* in the file PATENTS. All contributing project authors may
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* be found in the AUTHORS file in the root of the source tree.
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*/
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#ifndef WEBRTC_AUDIO_DEVICE_AUDIO_DEVICE_H
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#define WEBRTC_AUDIO_DEVICE_AUDIO_DEVICE_H
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#include "module.h"
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#include "audio_device_defines.h"
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namespace webrtc {
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class AudioDeviceModule : public Module
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{
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public:
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enum ErrorCode
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{
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kAdmErrNone = 0,
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kAdmErrArgument = 1
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};
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enum AudioLayer
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{
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kPlatformDefaultAudio = 0,
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kWindowsWaveAudio = 1,
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kWindowsCoreAudio = 2,
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kLinuxAlsaAudio = 3,
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kLinuxPulseAudio = 4,
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kDummyAudio = 5
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};
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enum WindowsDeviceType
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{
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kDefaultCommunicationDevice = -1,
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kDefaultDevice = -2
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};
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enum BufferType
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{
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kFixedBufferSize = 0,
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kAdaptiveBufferSize = 1
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};
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enum ChannelType
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{
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kChannelLeft = 0,
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kChannelRight = 1,
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kChannelBoth = 2
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};
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public:
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// Factory methods (resource allocation/deallocation)
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static AudioDeviceModule* Create(
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const int32_t id,
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const AudioLayer audioLayer = kPlatformDefaultAudio);
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static void Destroy(AudioDeviceModule* module);
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// Retrieve the currently utilized audio layer
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virtual int32_t ActiveAudioLayer(AudioLayer* audioLayer) const = 0;
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// Module methods
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static int32_t GetVersion(char* version,
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uint32_t& remainingBufferInBytes,
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uint32_t& position);
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virtual int32_t ChangeUniqueId(const int32_t id) = 0;
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// Error handling
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virtual ErrorCode LastError() const = 0;
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virtual int32_t RegisterEventObserver(
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AudioDeviceObserver* eventCallback) = 0;
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// Full-duplex transportation of PCM audio
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virtual int32_t RegisterAudioCallback(AudioTransport* audioCallback) = 0;
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// Main initialization and termination
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virtual int32_t Init() = 0;
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virtual int32_t Terminate() = 0;
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virtual bool Initialized() const = 0;
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// Device enumeration
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virtual int16_t PlayoutDevices() = 0;
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virtual int16_t RecordingDevices() = 0;
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virtual int32_t PlayoutDeviceName(uint16_t index,
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char name[kAdmMaxDeviceNameSize],
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char guid[kAdmMaxGuidSize]) = 0;
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virtual int32_t RecordingDeviceName(uint16_t index,
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char name[kAdmMaxDeviceNameSize],
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char guid[kAdmMaxGuidSize]) = 0;
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// Device selection
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virtual int32_t SetPlayoutDevice(uint16_t index) = 0;
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virtual int32_t SetPlayoutDevice(WindowsDeviceType device) = 0;
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virtual int32_t SetRecordingDevice(uint16_t index) = 0;
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virtual int32_t SetRecordingDevice(WindowsDeviceType device) = 0;
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// Audio transport initialization
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virtual int32_t PlayoutIsAvailable(bool* available) = 0;
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virtual int32_t InitPlayout() = 0;
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virtual bool PlayoutIsInitialized() const = 0;
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virtual int32_t RecordingIsAvailable(bool* available) = 0;
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virtual int32_t InitRecording() = 0;
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virtual bool RecordingIsInitialized() const = 0;
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// Audio transport control
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virtual int32_t StartPlayout() = 0;
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virtual int32_t StopPlayout() = 0;
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virtual bool Playing() const = 0;
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virtual int32_t StartRecording() = 0;
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virtual int32_t StopRecording() = 0;
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virtual bool Recording() const = 0;
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// Microphone Automatic Gain Control (AGC)
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virtual int32_t SetAGC(bool enable) = 0;
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virtual bool AGC() const = 0;
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// Volume control based on the Windows Wave API (Windows only)
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virtual int32_t SetWaveOutVolume(uint16_t volumeLeft,
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uint16_t volumeRight) = 0;
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virtual int32_t WaveOutVolume(uint16_t* volumeLeft,
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uint16_t* volumeRight) const = 0;
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// Audio mixer initialization
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virtual int32_t SpeakerIsAvailable(bool* available) = 0;
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virtual int32_t InitSpeaker() = 0;
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virtual bool SpeakerIsInitialized() const = 0;
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virtual int32_t MicrophoneIsAvailable(bool* available) = 0;
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virtual int32_t InitMicrophone() = 0;
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virtual bool MicrophoneIsInitialized() const = 0;
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// Speaker volume controls
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virtual int32_t SpeakerVolumeIsAvailable(bool* available) = 0;
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virtual int32_t SetSpeakerVolume(uint32_t volume) = 0;
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virtual int32_t SpeakerVolume(uint32_t* volume) const = 0;
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virtual int32_t MaxSpeakerVolume(uint32_t* maxVolume) const = 0;
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virtual int32_t MinSpeakerVolume(uint32_t* minVolume) const = 0;
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virtual int32_t SpeakerVolumeStepSize(uint16_t* stepSize) const = 0;
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// Microphone volume controls
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virtual int32_t MicrophoneVolumeIsAvailable(bool* available) = 0;
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virtual int32_t SetMicrophoneVolume(uint32_t volume) = 0;
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virtual int32_t MicrophoneVolume(uint32_t* volume) const = 0;
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virtual int32_t MaxMicrophoneVolume(uint32_t* maxVolume) const = 0;
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virtual int32_t MinMicrophoneVolume(uint32_t* minVolume) const = 0;
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virtual int32_t MicrophoneVolumeStepSize(uint16_t* stepSize) const = 0;
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// Speaker mute control
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virtual int32_t SpeakerMuteIsAvailable(bool* available) = 0;
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virtual int32_t SetSpeakerMute(bool enable) = 0;
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virtual int32_t SpeakerMute(bool* enabled) const = 0;
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// Microphone mute control
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virtual int32_t MicrophoneMuteIsAvailable(bool* available) = 0;
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virtual int32_t SetMicrophoneMute(bool enable) = 0;
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virtual int32_t MicrophoneMute(bool* enabled) const = 0;
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// Microphone boost control
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virtual int32_t MicrophoneBoostIsAvailable(bool* available) = 0;
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virtual int32_t SetMicrophoneBoost(bool enable) = 0;
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virtual int32_t MicrophoneBoost(bool* enabled) const = 0;
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// Stereo support
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virtual int32_t StereoPlayoutIsAvailable(bool* available) const = 0;
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virtual int32_t SetStereoPlayout(bool enable) = 0;
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virtual int32_t StereoPlayout(bool* enabled) const = 0;
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virtual int32_t StereoRecordingIsAvailable(bool* available) const = 0;
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virtual int32_t SetStereoRecording(bool enable) = 0;
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virtual int32_t StereoRecording(bool* enabled) const = 0;
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virtual int32_t SetRecordingChannel(const ChannelType channel) = 0;
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virtual int32_t RecordingChannel(ChannelType* channel) const = 0;
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// Delay information and control
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virtual int32_t SetPlayoutBuffer(const BufferType type,
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uint16_t sizeMS = 0) = 0;
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virtual int32_t PlayoutBuffer(BufferType* type,
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uint16_t* sizeMS) const = 0;
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virtual int32_t PlayoutDelay(uint16_t* delayMS) const = 0;
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virtual int32_t RecordingDelay(uint16_t* delayMS) const = 0;
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// CPU load
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virtual int32_t CPULoad(uint16_t* load) const = 0;
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// Recording of raw PCM data
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virtual int32_t StartRawOutputFileRecording(
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const char pcmFileNameUTF8[kAdmMaxFileNameSize]) = 0;
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virtual int32_t StopRawOutputFileRecording() = 0;
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virtual int32_t StartRawInputFileRecording(
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const char pcmFileNameUTF8[kAdmMaxFileNameSize]) = 0;
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virtual int32_t StopRawInputFileRecording() = 0;
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// Native sample rate controls (samples/sec)
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virtual int32_t SetRecordingSampleRate(const uint32_t samplesPerSec) = 0;
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virtual int32_t RecordingSampleRate(uint32_t* samplesPerSec) const = 0;
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virtual int32_t SetPlayoutSampleRate(const uint32_t samplesPerSec) = 0;
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virtual int32_t PlayoutSampleRate(uint32_t* samplesPerSec) const = 0;
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// Mobile device specific functions
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virtual int32_t ResetAudioDevice() = 0;
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virtual int32_t SetLoudspeakerStatus(bool enable) = 0;
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virtual int32_t GetLoudspeakerStatus(bool* enabled) const = 0;
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// Android specific function
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static int32_t SetAndroidObjects(void* javaVM, void* env, void* context);
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protected:
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virtual ~AudioDeviceModule() {};
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};
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} // namespace webrtc
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#endif // WEBRTC_AUDIO_DEVICE_AUDIO_DEVICE_H
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