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 AUDIO_DEVICE_AUDIO_MIXER_MANAGER_PULSE_LINUX_H_ 12 #define AUDIO_DEVICE_AUDIO_MIXER_MANAGER_PULSE_LINUX_H_ 13 14 #include "modules/audio_device/include/audio_device.h" 15 #include "modules/audio_device/linux/pulseaudiosymboltable_linux.h" 16 #include "rtc_base/thread_checker.h" 17 #include "typedefs.h" // NOLINT(build/include) 18 19 #include <pulse/pulseaudio.h> 20 #include <stdint.h> 21 22 #ifndef UINT32_MAX 23 #define UINT32_MAX ((uint32_t)-1) 24 #endif 25 26 namespace webrtc 27 { 28 29 class AudioMixerManagerLinuxPulse 30 { 31 public: 32 int32_t SetPlayStream(pa_stream* playStream); 33 int32_t SetRecStream(pa_stream* recStream); 34 int32_t OpenSpeaker(uint16_t deviceIndex); 35 int32_t OpenMicrophone(uint16_t deviceIndex); 36 int32_t SetSpeakerVolume(uint32_t volume); 37 int32_t SpeakerVolume(uint32_t& volume) const; 38 int32_t MaxSpeakerVolume(uint32_t& maxVolume) const; 39 int32_t MinSpeakerVolume(uint32_t& minVolume) const; 40 int32_t SpeakerVolumeIsAvailable(bool& available); 41 int32_t SpeakerMuteIsAvailable(bool& available); 42 int32_t SetSpeakerMute(bool enable); 43 int32_t StereoPlayoutIsAvailable(bool& available); 44 int32_t StereoRecordingIsAvailable(bool& available); 45 int32_t SpeakerMute(bool& enabled) const; 46 int32_t MicrophoneMuteIsAvailable(bool& available); 47 int32_t SetMicrophoneMute(bool enable); 48 int32_t MicrophoneMute(bool& enabled) const; 49 int32_t MicrophoneVolumeIsAvailable(bool& available); 50 int32_t SetMicrophoneVolume(uint32_t volume); 51 int32_t MicrophoneVolume(uint32_t& volume) const; 52 int32_t MaxMicrophoneVolume(uint32_t& maxVolume) const; 53 int32_t MinMicrophoneVolume(uint32_t& minVolume) const; 54 int32_t SetPulseAudioObjects(pa_threaded_mainloop* mainloop, 55 pa_context* context); 56 int32_t Close(); 57 int32_t CloseSpeaker(); 58 int32_t CloseMicrophone(); 59 bool SpeakerIsInitialized() const; 60 bool MicrophoneIsInitialized() const; 61 62 public: 63 AudioMixerManagerLinuxPulse(); 64 ~AudioMixerManagerLinuxPulse(); 65 66 private: 67 static void PaSinkInfoCallback(pa_context *c, const pa_sink_info *i, 68 int eol, void *pThis); 69 static void PaSinkInputInfoCallback(pa_context *c, 70 const pa_sink_input_info *i, int eol, 71 void *pThis); 72 static void PaSourceInfoCallback(pa_context *c, const pa_source_info *i, 73 int eol, void *pThis); 74 static void 75 PaSetVolumeCallback(pa_context* /*c*/, int success, void* /*pThis*/); 76 void PaSinkInfoCallbackHandler(const pa_sink_info *i, int eol); 77 void PaSinkInputInfoCallbackHandler(const pa_sink_input_info *i, int eol); 78 void PaSourceInfoCallbackHandler(const pa_source_info *i, int eol); 79 80 void WaitForOperationCompletion(pa_operation* paOperation) const; 81 82 bool GetSinkInputInfo() const; 83 bool GetSinkInfoByIndex(int device_index)const ; 84 bool GetSourceInfoByIndex(int device_index) const; 85 86 private: 87 int16_t _paOutputDeviceIndex; 88 int16_t _paInputDeviceIndex; 89 90 pa_stream* _paPlayStream; 91 pa_stream* _paRecStream; 92 93 pa_threaded_mainloop* _paMainloop; 94 pa_context* _paContext; 95 96 mutable uint32_t _paVolume; 97 mutable uint32_t _paMute; 98 mutable uint32_t _paVolSteps; 99 bool _paSpeakerMute; 100 mutable uint32_t _paSpeakerVolume; 101 mutable uint8_t _paChannels; 102 bool _paObjectsSet; 103 104 // Stores thread ID in constructor. 105 // We can then use ThreadChecker::CalledOnValidThread() to ensure that 106 // other methods are called from the same thread. 107 // Currently only does RTC_DCHECK(thread_checker_.CalledOnValidThread()). 108 rtc::ThreadChecker thread_checker_; 109 }; 110 111 } 112 113 #endif // MODULES_AUDIO_DEVICE_MAIN_SOURCE_LINUX_AUDIO_MIXER_MANAGER_PULSE_LINUX_H_ 114