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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 WEBRTC_AUDIO_DEVICE_AUDIO_DEVICE_IPHONE_H
#define WEBRTC_AUDIO_DEVICE_AUDIO_DEVICE_IPHONE_H
#include <AudioUnit/AudioUnit.h>
#include "webrtc/modules/audio_device/audio_device_generic.h"
#include "webrtc/system_wrappers/interface/critical_section_wrapper.h"
namespace webrtc {
class ThreadWrapper;
const uint32_t N_REC_SAMPLES_PER_SEC = 44000;
const uint32_t N_PLAY_SAMPLES_PER_SEC = 44000;
const uint32_t N_REC_CHANNELS = 1; // default is mono recording
const uint32_t N_PLAY_CHANNELS = 1; // default is mono playout
const uint32_t N_DEVICE_CHANNELS = 8;
const uint32_t ENGINE_REC_BUF_SIZE_IN_SAMPLES = (N_REC_SAMPLES_PER_SEC / 100);
const uint32_t ENGINE_PLAY_BUF_SIZE_IN_SAMPLES = (N_PLAY_SAMPLES_PER_SEC / 100);
// Number of 10 ms recording blocks in recording buffer
const uint16_t N_REC_BUFFERS = 20;
class AudioDeviceIPhone : public AudioDeviceGeneric {
public:
AudioDeviceIPhone(const int32_t id);
~AudioDeviceIPhone();
// Retrieve the currently utilized audio layer
virtual int32_t
ActiveAudioLayer(AudioDeviceModule::AudioLayer& audioLayer) const;
// Main initializaton and termination
virtual int32_t Init();
virtual int32_t Terminate();
virtual bool Initialized() const;
// Device enumeration
virtual int16_t PlayoutDevices();
virtual int16_t RecordingDevices();
virtual int32_t PlayoutDeviceName(uint16_t index,
char name[kAdmMaxDeviceNameSize],
char guid[kAdmMaxGuidSize]);
virtual int32_t RecordingDeviceName(uint16_t index,
char name[kAdmMaxDeviceNameSize],
char guid[kAdmMaxGuidSize]);
// Device selection
virtual int32_t SetPlayoutDevice(uint16_t index);
virtual int32_t
SetPlayoutDevice(AudioDeviceModule::WindowsDeviceType device);
virtual int32_t SetRecordingDevice(uint16_t index);
virtual int32_t SetRecordingDevice(
AudioDeviceModule::WindowsDeviceType device);
// Audio transport initialization
virtual int32_t PlayoutIsAvailable(bool& available);
virtual int32_t InitPlayout();
virtual bool PlayoutIsInitialized() const;
virtual int32_t RecordingIsAvailable(bool& available);
virtual int32_t InitRecording();
virtual bool RecordingIsInitialized() const;
// Audio transport control
virtual int32_t StartPlayout();
virtual int32_t StopPlayout();
virtual bool Playing() const;
virtual int32_t StartRecording();
virtual int32_t StopRecording();
virtual bool Recording() const;
// Microphone Automatic Gain Control (AGC)
virtual int32_t SetAGC(bool enable);
virtual bool AGC() const;
// Volume control based on the Windows Wave API (Windows only)
virtual int32_t SetWaveOutVolume(uint16_t volumeLeft, uint16_t volumeRight);
virtual int32_t WaveOutVolume(uint16_t& volumeLeft,
uint16_t& volumeRight) const;
// Audio mixer initialization
virtual int32_t InitSpeaker();
virtual bool SpeakerIsInitialized() const;
virtual int32_t InitMicrophone();
virtual bool MicrophoneIsInitialized() const;
// Speaker volume controls
virtual int32_t SpeakerVolumeIsAvailable(bool& available);
virtual int32_t SetSpeakerVolume(uint32_t volume);
virtual int32_t SpeakerVolume(uint32_t& volume) const;
virtual int32_t MaxSpeakerVolume(uint32_t& maxVolume) const;
virtual int32_t MinSpeakerVolume(uint32_t& minVolume) const;
virtual int32_t SpeakerVolumeStepSize(uint16_t& stepSize) const;
// Microphone volume controls
virtual int32_t MicrophoneVolumeIsAvailable(bool& available);
virtual int32_t SetMicrophoneVolume(uint32_t volume);
virtual int32_t MicrophoneVolume(uint32_t& volume) const;
virtual int32_t MaxMicrophoneVolume(uint32_t& maxVolume) const;
virtual int32_t MinMicrophoneVolume(uint32_t& minVolume) const;
virtual int32_t
MicrophoneVolumeStepSize(uint16_t& stepSize) const;
// Microphone mute control
virtual int32_t MicrophoneMuteIsAvailable(bool& available);
virtual int32_t SetMicrophoneMute(bool enable);
virtual int32_t MicrophoneMute(bool& enabled) const;
// Speaker mute control
virtual int32_t SpeakerMuteIsAvailable(bool& available);
virtual int32_t SetSpeakerMute(bool enable);
virtual int32_t SpeakerMute(bool& enabled) const;
// Microphone boost control
virtual int32_t MicrophoneBoostIsAvailable(bool& available);
virtual int32_t SetMicrophoneBoost(bool enable);
virtual int32_t MicrophoneBoost(bool& enabled) const;
// Stereo support
virtual int32_t StereoPlayoutIsAvailable(bool& available);
virtual int32_t SetStereoPlayout(bool enable);
virtual int32_t StereoPlayout(bool& enabled) const;
virtual int32_t StereoRecordingIsAvailable(bool& available);
virtual int32_t SetStereoRecording(bool enable);
virtual int32_t StereoRecording(bool& enabled) const;
// Delay information and control
virtual int32_t
SetPlayoutBuffer(const AudioDeviceModule::BufferType type,
uint16_t sizeMS);
virtual int32_t PlayoutBuffer(AudioDeviceModule::BufferType& type,
uint16_t& sizeMS) const;
virtual int32_t PlayoutDelay(uint16_t& delayMS) const;
virtual int32_t RecordingDelay(uint16_t& delayMS) const;
// CPU load
virtual int32_t CPULoad(uint16_t& load) const;
public:
virtual bool PlayoutWarning() const;
virtual bool PlayoutError() const;
virtual bool RecordingWarning() const;
virtual bool RecordingError() const;
virtual void ClearPlayoutWarning();
virtual void ClearPlayoutError();
virtual void ClearRecordingWarning();
virtual void ClearRecordingError();
public:
virtual void AttachAudioBuffer(AudioDeviceBuffer* audioBuffer);
// Reset Audio Deivce (for mobile devices only)
virtual int32_t ResetAudioDevice();
// enable or disable loud speaker (for iphone only)
virtual int32_t SetLoudspeakerStatus(bool enable);
virtual int32_t GetLoudspeakerStatus(bool& enabled) const;
private:
void Lock() {
_critSect.Enter();
}
void UnLock() {
_critSect.Leave();
}
int32_t Id() {
return _id;
}
// Init and shutdown
int32_t InitPlayOrRecord();
int32_t ShutdownPlayOrRecord();
void UpdateRecordingDelay();
void UpdatePlayoutDelay();
static OSStatus RecordProcess(void *inRefCon,
AudioUnitRenderActionFlags *ioActionFlags,
const AudioTimeStamp *timeStamp,
UInt32 inBusNumber,
UInt32 inNumberFrames,
AudioBufferList *ioData);
static OSStatus PlayoutProcess(void *inRefCon,
AudioUnitRenderActionFlags *ioActionFlags,
const AudioTimeStamp *timeStamp,
UInt32 inBusNumber,
UInt32 inNumberFrames,
AudioBufferList *ioData);
OSStatus RecordProcessImpl(AudioUnitRenderActionFlags *ioActionFlags,
const AudioTimeStamp *timeStamp,
uint32_t inBusNumber,
uint32_t inNumberFrames);
OSStatus PlayoutProcessImpl(uint32_t inNumberFrames,
AudioBufferList *ioData);
static bool RunCapture(void* ptrThis);
bool CaptureWorkerThread();
private:
AudioDeviceBuffer* _ptrAudioBuffer;
CriticalSectionWrapper& _critSect;
ThreadWrapper* _captureWorkerThread;
uint32_t _captureWorkerThreadId;
int32_t _id;
AudioUnit _auVoiceProcessing;
private:
bool _initialized;
bool _isShutDown;
bool _recording;
bool _playing;
bool _recIsInitialized;
bool _playIsInitialized;
bool _recordingDeviceIsSpecified;
bool _playoutDeviceIsSpecified;
bool _micIsInitialized;
bool _speakerIsInitialized;
bool _AGC;
// The sampling rate to use with Audio Device Buffer
uint32_t _adbSampFreq;
// Delay calculation
uint32_t _recordingDelay;
uint32_t _playoutDelay;
uint32_t _playoutDelayMeasurementCounter;
uint32_t _recordingDelayHWAndOS;
uint32_t _recordingDelayMeasurementCounter;
// Errors and warnings count
uint16_t _playWarning;
uint16_t _playError;
uint16_t _recWarning;
uint16_t _recError;
// Playout buffer, needed for 44.0 / 44.1 kHz mismatch
int16_t _playoutBuffer[ENGINE_PLAY_BUF_SIZE_IN_SAMPLES];
uint32_t _playoutBufferUsed; // How much is filled
// Recording buffers
int16_t
_recordingBuffer[N_REC_BUFFERS][ENGINE_REC_BUF_SIZE_IN_SAMPLES];
uint32_t _recordingLength[N_REC_BUFFERS];
uint32_t _recordingSeqNumber[N_REC_BUFFERS];
uint32_t _recordingCurrentSeq;
// Current total size all data in buffers, used for delay estimate
uint32_t _recordingBufferTotalSize;
};
} // namespace webrtc
#endif // MODULES_AUDIO_DEVICE_MAIN_SOURCE_MAC_AUDIO_DEVICE_IPHONE_H_
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