/* * 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 #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_