1 files changed, 114 insertions, 0 deletions
diff --git a/third_party/libwebrtc/modules/audio_device/linux/audio_mixer_manager_pulse_linux.h b/third_party/libwebrtc/modules/audio_device/linux/audio_mixer_manager_pulse_linux.h
new file mode 100644
index 0000000000..546440c4a6
--- /dev/null
+++ b/third_party/libwebrtc/modules/audio_device/linux/audio_mixer_manager_pulse_linux.h
@@ -0,0 +1,114 @@
+/*
+ *  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 AUDIO_DEVICE_AUDIO_MIXER_MANAGER_PULSE_LINUX_H_
+#define AUDIO_DEVICE_AUDIO_MIXER_MANAGER_PULSE_LINUX_H_
+
+#include <pulse/pulseaudio.h>
+#include <stdint.h>
+
+#include "api/sequence_checker.h"
+
+#ifndef UINT32_MAX
+#define UINT32_MAX ((uint32_t)-1)
+#endif
+
+namespace webrtc {
+
+class AudioMixerManagerLinuxPulse {
+ public:
+  int32_t SetPlayStream(pa_stream* playStream);
+  int32_t SetRecStream(pa_stream* recStream);
+  int32_t OpenSpeaker(uint16_t deviceIndex);
+  int32_t OpenMicrophone(uint16_t deviceIndex);
+  int32_t SetSpeakerVolume(uint32_t volume);
+  int32_t SpeakerVolume(uint32_t& volume) const;
+  int32_t MaxSpeakerVolume(uint32_t& maxVolume) const;
+  int32_t MinSpeakerVolume(uint32_t& minVolume) const;
+  int32_t SpeakerVolumeIsAvailable(bool& available);
+  int32_t SpeakerMuteIsAvailable(bool& available);
+  int32_t SetSpeakerMute(bool enable);
+  int32_t StereoPlayoutIsAvailable(bool& available);
+  int32_t StereoRecordingIsAvailable(bool& available);
+  int32_t SpeakerMute(bool& enabled) const;
+  int32_t MicrophoneMuteIsAvailable(bool& available);
+  int32_t SetMicrophoneMute(bool enable);
+  int32_t MicrophoneMute(bool& enabled) const;
+  int32_t MicrophoneVolumeIsAvailable(bool& available);
+  int32_t SetMicrophoneVolume(uint32_t volume);
+  int32_t MicrophoneVolume(uint32_t& volume) const;
+  int32_t MaxMicrophoneVolume(uint32_t& maxVolume) const;
+  int32_t MinMicrophoneVolume(uint32_t& minVolume) const;
+  int32_t SetPulseAudioObjects(pa_threaded_mainloop* mainloop,
+                               pa_context* context);
+  int32_t Close();
+  int32_t CloseSpeaker();
+  int32_t CloseMicrophone();
+  bool SpeakerIsInitialized() const;
+  bool MicrophoneIsInitialized() const;
+
+ public:
+  AudioMixerManagerLinuxPulse();
+  ~AudioMixerManagerLinuxPulse();
+
+ private:
+  static void PaSinkInfoCallback(pa_context* c,
+                                 const pa_sink_info* i,
+                                 int eol,
+                                 void* pThis);
+  static void PaSinkInputInfoCallback(pa_context* c,
+                                      const pa_sink_input_info* i,
+                                      int eol,
+                                      void* pThis);
+  static void PaSourceInfoCallback(pa_context* c,
+                                   const pa_source_info* i,
+                                   int eol,
+                                   void* pThis);
+  static void PaSetVolumeCallback(pa_context* /*c*/,
+                                  int success,
+                                  void* /*pThis*/);
+  void PaSinkInfoCallbackHandler(const pa_sink_info* i, int eol);
+  void PaSinkInputInfoCallbackHandler(const pa_sink_input_info* i, int eol);
+  void PaSourceInfoCallbackHandler(const pa_source_info* i, int eol);
+
+  void WaitForOperationCompletion(pa_operation* paOperation) const;
+
+  bool GetSinkInputInfo() const;
+  bool GetSinkInfoByIndex(int device_index) const;
+  bool GetSourceInfoByIndex(int device_index) const;
+
+ private:
+  int16_t _paOutputDeviceIndex;
+  int16_t _paInputDeviceIndex;
+
+  pa_stream* _paPlayStream;
+  pa_stream* _paRecStream;
+
+  pa_threaded_mainloop* _paMainloop;
+  pa_context* _paContext;
+
+  mutable uint32_t _paVolume;
+  mutable uint32_t _paMute;
+  mutable uint32_t _paVolSteps;
+  bool _paSpeakerMute;
+  mutable uint32_t _paSpeakerVolume;
+  mutable uint8_t _paChannels;
+  bool _paObjectsSet;
+
+  // Stores thread ID in constructor.
+  // We can then use RTC_DCHECK_RUN_ON(&worker_thread_checker_) to ensure that
+  // other methods are called from the same thread.
+  // Currently only does RTC_DCHECK(thread_checker_.IsCurrent()).
+  SequenceChecker thread_checker_;
+};
+
+}  // namespace webrtc
+
+#endif  // MODULES_AUDIO_DEVICE_MAIN_SOURCE_LINUX_AUDIO_MIXER_MANAGER_PULSE_LINUX_H_