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 <pulse/pulseaudio.h> 15 #include <stdint.h> 16 17 #include "rtc_base/thread_checker.h" 18 19 #ifndef UINT32_MAX 20 #define UINT32_MAX ((uint32_t)-1) 21 #endif 22 23 namespace webrtc { 24 25 class AudioMixerManagerLinuxPulse { 26 public: 27 int32_t SetPlayStream(pa_stream* playStream); 28 int32_t SetRecStream(pa_stream* recStream); 29 int32_t OpenSpeaker(uint16_t deviceIndex); 30 int32_t OpenMicrophone(uint16_t deviceIndex); 31 int32_t SetSpeakerVolume(uint32_t volume); 32 int32_t SpeakerVolume(uint32_t& volume) const; 33 int32_t MaxSpeakerVolume(uint32_t& maxVolume) const; 34 int32_t MinSpeakerVolume(uint32_t& minVolume) const; 35 int32_t SpeakerVolumeIsAvailable(bool& available); 36 int32_t SpeakerMuteIsAvailable(bool& available); 37 int32_t SetSpeakerMute(bool enable); 38 int32_t StereoPlayoutIsAvailable(bool& available); 39 int32_t StereoRecordingIsAvailable(bool& available); 40 int32_t SpeakerMute(bool& enabled) const; 41 int32_t MicrophoneMuteIsAvailable(bool& available); 42 int32_t SetMicrophoneMute(bool enable); 43 int32_t MicrophoneMute(bool& enabled) const; 44 int32_t MicrophoneVolumeIsAvailable(bool& available); 45 int32_t SetMicrophoneVolume(uint32_t volume); 46 int32_t MicrophoneVolume(uint32_t& volume) const; 47 int32_t MaxMicrophoneVolume(uint32_t& maxVolume) const; 48 int32_t MinMicrophoneVolume(uint32_t& minVolume) const; 49 int32_t SetPulseAudioObjects(pa_threaded_mainloop* mainloop, 50 pa_context* context); 51 int32_t Close(); 52 int32_t CloseSpeaker(); 53 int32_t CloseMicrophone(); 54 bool SpeakerIsInitialized() const; 55 bool MicrophoneIsInitialized() const; 56 57 public: 58 AudioMixerManagerLinuxPulse(); 59 ~AudioMixerManagerLinuxPulse(); 60 61 private: 62 static void PaSinkInfoCallback(pa_context* c, 63 const pa_sink_info* i, 64 int eol, 65 void* pThis); 66 static void PaSinkInputInfoCallback(pa_context* c, 67 const pa_sink_input_info* i, 68 int eol, 69 void* pThis); 70 static void PaSourceInfoCallback(pa_context* c, 71 const pa_source_info* i, 72 int eol, 73 void* pThis); 74 static void PaSetVolumeCallback(pa_context* /*c*/, 75 int success, 76 void* /*pThis*/); 77 void PaSinkInfoCallbackHandler(const pa_sink_info* i, int eol); 78 void PaSinkInputInfoCallbackHandler(const pa_sink_input_info* i, int eol); 79 void PaSourceInfoCallbackHandler(const pa_source_info* i, int eol); 80 81 void WaitForOperationCompletion(pa_operation* paOperation) const; 82 83 bool GetSinkInputInfo() const; 84 bool GetSinkInfoByIndex(int device_index) const; 85 bool GetSourceInfoByIndex(int device_index) const; 86 87 private: 88 int16_t _paOutputDeviceIndex; 89 int16_t _paInputDeviceIndex; 90 91 pa_stream* _paPlayStream; 92 pa_stream* _paRecStream; 93 94 pa_threaded_mainloop* _paMainloop; 95 pa_context* _paContext; 96 97 mutable uint32_t _paVolume; 98 mutable uint32_t _paMute; 99 mutable uint32_t _paVolSteps; 100 bool _paSpeakerMute; 101 mutable uint32_t _paSpeakerVolume; 102 mutable uint8_t _paChannels; 103 bool _paObjectsSet; 104 105 // Stores thread ID in constructor. 106 // We can then use ThreadChecker::IsCurrent() to ensure that 107 // other methods are called from the same thread. 108 // Currently only does RTC_DCHECK(thread_checker_.IsCurrent()). 109 rtc::ThreadChecker thread_checker_; 110 }; 111 112 } // namespace webrtc 113 114 #endif // MODULES_AUDIO_DEVICE_MAIN_SOURCE_LINUX_AUDIO_MIXER_MANAGER_PULSE_LINUX_H_ 115