| /* |
| * 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 SpeakerIsAvailable(bool& available); |
| virtual int32_t InitSpeaker(); |
| virtual bool SpeakerIsInitialized() const; |
| virtual int32_t MicrophoneIsAvailable(bool& available); |
| 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_ |
