1 /* 2 * Copyright (c) 2012 The WebRTC project authors. All Rights Reserved. 3 * 4 * Use of this source code is governed by a BSD-style license 5 * that can be found in the LICENSE file in the root of the source 6 * tree. An additional intellectual property rights grant can be found 7 * in the file PATENTS. All contributing project authors may 8 * be found in the AUTHORS file in the root of the source tree. 9 */ 10 11 #ifndef WEBRTC_AUDIO_DEVICE_AUDIO_DEVICE_WAVE_WIN_H 12 #define WEBRTC_AUDIO_DEVICE_AUDIO_DEVICE_WAVE_WIN_H 13 14 #include "webrtc/modules/audio_device/audio_device_generic.h" 15 #include "webrtc/modules/audio_device/win/audio_mixer_manager_win.h" 16 17 #pragma comment( lib, "winmm.lib" ) 18 19 namespace webrtc { 20 class EventWrapper; 21 class ThreadWrapper; 22 23 const uint32_t TIMER_PERIOD_MS = 2; 24 const uint32_t REC_CHECK_TIME_PERIOD_MS = 4; 25 const uint16_t REC_PUT_BACK_DELAY = 4; 26 27 const uint32_t N_REC_SAMPLES_PER_SEC = 48000; 28 const uint32_t N_PLAY_SAMPLES_PER_SEC = 48000; 29 30 const uint32_t N_REC_CHANNELS = 1; // default is mono recording 31 const uint32_t N_PLAY_CHANNELS = 2; // default is stereo playout 32 33 // NOTE - CPU load will not be correct for other sizes than 10ms 34 const uint32_t REC_BUF_SIZE_IN_SAMPLES = (N_REC_SAMPLES_PER_SEC/100); 35 const uint32_t PLAY_BUF_SIZE_IN_SAMPLES = (N_PLAY_SAMPLES_PER_SEC/100); 36 37 enum { N_BUFFERS_IN = 200 }; 38 enum { N_BUFFERS_OUT = 200 }; 39 40 class AudioDeviceWindowsWave : public AudioDeviceGeneric 41 { 42 public: 43 AudioDeviceWindowsWave(const int32_t id); 44 ~AudioDeviceWindowsWave(); 45 46 // Retrieve the currently utilized audio layer 47 virtual int32_t ActiveAudioLayer(AudioDeviceModule::AudioLayer& audioLayer) const; 48 49 // Main initializaton and termination 50 virtual int32_t Init(); 51 virtual int32_t Terminate(); 52 virtual bool Initialized() const; 53 54 // Device enumeration 55 virtual int16_t PlayoutDevices(); 56 virtual int16_t RecordingDevices(); 57 virtual int32_t PlayoutDeviceName( 58 uint16_t index, 59 char name[kAdmMaxDeviceNameSize], 60 char guid[kAdmMaxGuidSize]); 61 virtual int32_t RecordingDeviceName( 62 uint16_t index, 63 char name[kAdmMaxDeviceNameSize], 64 char guid[kAdmMaxGuidSize]); 65 66 // Device selection 67 virtual int32_t SetPlayoutDevice(uint16_t index); 68 virtual int32_t SetPlayoutDevice(AudioDeviceModule::WindowsDeviceType device); 69 virtual int32_t SetRecordingDevice(uint16_t index); 70 virtual int32_t SetRecordingDevice(AudioDeviceModule::WindowsDeviceType device); 71 72 // Audio transport initialization 73 virtual int32_t PlayoutIsAvailable(bool& available); 74 virtual int32_t InitPlayout(); 75 virtual bool PlayoutIsInitialized() const; 76 virtual int32_t RecordingIsAvailable(bool& available); 77 virtual int32_t InitRecording(); 78 virtual bool RecordingIsInitialized() const; 79 80 // Audio transport control 81 virtual int32_t StartPlayout(); 82 virtual int32_t StopPlayout(); 83 virtual bool Playing() const; 84 virtual int32_t StartRecording(); 85 virtual int32_t StopRecording(); 86 virtual bool Recording() const; 87 88 // Microphone Automatic Gain Control (AGC) 89 virtual int32_t SetAGC(bool enable); 90 virtual bool AGC() const; 91 92 // Volume control based on the Windows Wave API (Windows only) 93 virtual int32_t SetWaveOutVolume(uint16_t volumeLeft, uint16_t volumeRight); 94 virtual int32_t WaveOutVolume(uint16_t& volumeLeft, uint16_t& volumeRight) const; 95 96 // Audio mixer initialization 97 virtual int32_t InitSpeaker(); 98 virtual bool SpeakerIsInitialized() const; 99 virtual int32_t InitMicrophone(); 100 virtual bool MicrophoneIsInitialized() const; 101 102 // Speaker volume controls 103 virtual int32_t SpeakerVolumeIsAvailable(bool& available); 104 virtual int32_t SetSpeakerVolume(uint32_t volume); 105 virtual int32_t SpeakerVolume(uint32_t& volume) const; 106 virtual int32_t MaxSpeakerVolume(uint32_t& maxVolume) const; 107 virtual int32_t MinSpeakerVolume(uint32_t& minVolume) const; 108 virtual int32_t SpeakerVolumeStepSize(uint16_t& stepSize) const; 109 110 // Microphone volume controls 111 virtual int32_t MicrophoneVolumeIsAvailable(bool& available); 112 virtual int32_t SetMicrophoneVolume(uint32_t volume); 113 virtual int32_t MicrophoneVolume(uint32_t& volume) const; 114 virtual int32_t MaxMicrophoneVolume(uint32_t& maxVolume) const; 115 virtual int32_t MinMicrophoneVolume(uint32_t& minVolume) const; 116 virtual int32_t MicrophoneVolumeStepSize(uint16_t& stepSize) const; 117 118 // Speaker mute control 119 virtual int32_t SpeakerMuteIsAvailable(bool& available); 120 virtual int32_t SetSpeakerMute(bool enable); 121 virtual int32_t SpeakerMute(bool& enabled) const; 122 123 // Microphone mute control 124 virtual int32_t MicrophoneMuteIsAvailable(bool& available); 125 virtual int32_t SetMicrophoneMute(bool enable); 126 virtual int32_t MicrophoneMute(bool& enabled) const; 127 128 // Microphone boost control 129 virtual int32_t MicrophoneBoostIsAvailable(bool& available); 130 virtual int32_t SetMicrophoneBoost(bool enable); 131 virtual int32_t MicrophoneBoost(bool& enabled) const; 132 133 // Stereo support 134 virtual int32_t StereoPlayoutIsAvailable(bool& available); 135 virtual int32_t SetStereoPlayout(bool enable); 136 virtual int32_t StereoPlayout(bool& enabled) const; 137 virtual int32_t StereoRecordingIsAvailable(bool& available); 138 virtual int32_t SetStereoRecording(bool enable); 139 virtual int32_t StereoRecording(bool& enabled) const; 140 141 // Delay information and control 142 virtual int32_t SetPlayoutBuffer(const AudioDeviceModule::BufferType type, uint16_t sizeMS); 143 virtual int32_t PlayoutBuffer(AudioDeviceModule::BufferType& type, uint16_t& sizeMS) const; 144 virtual int32_t PlayoutDelay(uint16_t& delayMS) const; 145 virtual int32_t RecordingDelay(uint16_t& delayMS) const; 146 147 // CPU load 148 virtual int32_t CPULoad(uint16_t& load) const; 149 150 public: 151 virtual bool PlayoutWarning() const; 152 virtual bool PlayoutError() const; 153 virtual bool RecordingWarning() const; 154 virtual bool RecordingError() const; 155 virtual void ClearPlayoutWarning(); 156 virtual void ClearPlayoutError(); 157 virtual void ClearRecordingWarning(); 158 virtual void ClearRecordingError(); 159 160 public: 161 virtual void AttachAudioBuffer(AudioDeviceBuffer* audioBuffer); 162 163 private: 164 void Lock() { _critSect.Enter(); }; 165 void UnLock() { _critSect.Leave(); }; 166 int32_t Id() {return _id;} 167 bool IsUsingOutputDeviceIndex() const {return _usingOutputDeviceIndex;} 168 AudioDeviceModule::WindowsDeviceType OutputDevice() const {return _outputDevice;} 169 uint16_t OutputDeviceIndex() const {return _outputDeviceIndex;} 170 bool IsUsingInputDeviceIndex() const {return _usingInputDeviceIndex;} 171 AudioDeviceModule::WindowsDeviceType InputDevice() const {return _inputDevice;} 172 uint16_t InputDeviceIndex() const {return _inputDeviceIndex;} 173 174 private: 175 inline int32_t InputSanityCheckAfterUnlockedPeriod() const; 176 inline int32_t OutputSanityCheckAfterUnlockedPeriod() const; 177 178 private: 179 bool KeyPressed() const; 180 181 private: 182 int32_t EnumeratePlayoutDevices(); 183 int32_t EnumerateRecordingDevices(); 184 void TraceSupportFlags(DWORD dwSupport) const; 185 void TraceWaveInError(MMRESULT error) const; 186 void TraceWaveOutError(MMRESULT error) const; 187 int32_t PrepareStartRecording(); 188 int32_t PrepareStartPlayout(); 189 190 int32_t RecProc(LONGLONG& consumedTime); 191 int PlayProc(LONGLONG& consumedTime); 192 193 int32_t GetPlayoutBufferDelay(uint32_t& writtenSamples, uint32_t& playedSamples); 194 int32_t GetRecordingBufferDelay(uint32_t& readSamples, uint32_t& recSamples); 195 int32_t Write(int8_t* data, uint16_t nSamples); 196 int32_t GetClockDrift(const uint32_t plSamp, const uint32_t rcSamp); 197 int32_t MonitorRecording(const uint32_t time); 198 int32_t RestartTimerIfNeeded(const uint32_t time); 199 200 private: 201 static bool ThreadFunc(void*); 202 bool ThreadProcess(); 203 204 static DWORD WINAPI GetCaptureVolumeThread(LPVOID context); 205 DWORD DoGetCaptureVolumeThread(); 206 207 static DWORD WINAPI SetCaptureVolumeThread(LPVOID context); 208 DWORD DoSetCaptureVolumeThread(); 209 210 private: 211 AudioDeviceBuffer* _ptrAudioBuffer; 212 213 CriticalSectionWrapper& _critSect; 214 EventWrapper& _timeEvent; 215 EventWrapper& _recStartEvent; 216 EventWrapper& _playStartEvent; 217 218 HANDLE _hGetCaptureVolumeThread; 219 HANDLE _hShutdownGetVolumeEvent; 220 HANDLE _hSetCaptureVolumeThread; 221 HANDLE _hShutdownSetVolumeEvent; 222 HANDLE _hSetCaptureVolumeEvent; 223 224 ThreadWrapper* _ptrThread; 225 uint32_t _threadID; 226 227 CriticalSectionWrapper& _critSectCb; 228 229 int32_t _id; 230 231 AudioMixerManager _mixerManager; 232 233 bool _usingInputDeviceIndex; 234 bool _usingOutputDeviceIndex; 235 AudioDeviceModule::WindowsDeviceType _inputDevice; 236 AudioDeviceModule::WindowsDeviceType _outputDevice; 237 uint16_t _inputDeviceIndex; 238 uint16_t _outputDeviceIndex; 239 bool _inputDeviceIsSpecified; 240 bool _outputDeviceIsSpecified; 241 242 WAVEFORMATEX _waveFormatIn; 243 WAVEFORMATEX _waveFormatOut; 244 245 HWAVEIN _hWaveIn; 246 HWAVEOUT _hWaveOut; 247 248 WAVEHDR _waveHeaderIn[N_BUFFERS_IN]; 249 WAVEHDR _waveHeaderOut[N_BUFFERS_OUT]; 250 251 uint8_t _recChannels; 252 uint8_t _playChannels; 253 uint16_t _recBufCount; 254 uint16_t _recDelayCount; 255 uint16_t _recPutBackDelay; 256 257 int8_t _recBuffer[N_BUFFERS_IN][4*REC_BUF_SIZE_IN_SAMPLES]; 258 int8_t _playBuffer[N_BUFFERS_OUT][4*PLAY_BUF_SIZE_IN_SAMPLES]; 259 260 AudioDeviceModule::BufferType _playBufType; 261 262 private: 263 bool _initialized; 264 bool _recording; 265 bool _playing; 266 bool _recIsInitialized; 267 bool _playIsInitialized; 268 bool _startRec; 269 bool _stopRec; 270 bool _startPlay; 271 bool _stopPlay; 272 bool _AGC; 273 274 private: 275 uint32_t _prevPlayTime; 276 uint32_t _prevRecTime; 277 uint32_t _prevTimerCheckTime; 278 279 uint16_t _playBufCount; // playout buffer index 280 uint16_t _dTcheckPlayBufDelay; // dT for check of play buffer, {2,5,10} [ms] 281 uint16_t _playBufDelay; // playback delay 282 uint16_t _playBufDelayFixed; // fixed playback delay 283 uint16_t _minPlayBufDelay; // minimum playback delay 284 uint16_t _MAX_minBuffer; // level of (adaptive) min threshold must be < _MAX_minBuffer 285 286 int32_t _erZeroCounter; // counts "buffer-is-empty" events 287 int32_t _intro; 288 int32_t _waitCounter; 289 290 uint32_t _writtenSamples; 291 uint32_t _writtenSamplesOld; 292 uint32_t _playedSamplesOld; 293 294 uint32_t _sndCardPlayDelay; 295 uint32_t _sndCardRecDelay; 296 297 uint32_t _plSampOld; 298 uint32_t _rcSampOld; 299 300 uint32_t _read_samples; 301 uint32_t _read_samples_old; 302 uint32_t _rec_samples_old; 303 304 // State that detects driver problems: 305 int32_t _dc_diff_mean; 306 int32_t _dc_y_prev; 307 int32_t _dc_penalty_counter; 308 int32_t _dc_prevtime; 309 uint32_t _dc_prevplay; 310 311 uint32_t _recordedBytes; // accumulated #recorded bytes (reset periodically) 312 uint32_t _prevRecByteCheckTime; // time when we last checked the recording process 313 314 // CPU load measurements 315 LARGE_INTEGER _perfFreq; 316 LONGLONG _playAcc; // accumulated time for playout callback 317 float _avgCPULoad; // average total (rec+play) CPU load 318 319 int32_t _wrapCounter; 320 321 int32_t _useHeader; 322 int16_t _timesdwBytes; 323 int32_t _no_of_msecleft_warnings; 324 int32_t _writeErrors; 325 int32_t _timerFaults; 326 int32_t _timerRestartAttempts; 327 328 uint16_t _playWarning; 329 uint16_t _playError; 330 uint16_t _recWarning; 331 uint16_t _recError; 332 333 uint32_t _newMicLevel; 334 uint32_t _minMicVolume; 335 uint32_t _maxMicVolume; 336 }; 337 338 } // namespace webrtc 339 340 #endif // WEBRTC_AUDIO_DEVICE_AUDIO_DEVICE_WAVE_WIN_H 341
