| // Copyright 2013 The Chromium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #ifndef MEDIA_AUDIO_PULSE_AUDIO_MANAGER_PULSE_H_ |
| #define MEDIA_AUDIO_PULSE_AUDIO_MANAGER_PULSE_H_ |
| |
| #include <pulse/pulseaudio.h> |
| |
| #include <memory> |
| #include <string> |
| |
| #include "base/compiler_specific.h" |
| #include "base/macros.h" |
| #include "base/memory/ref_counted.h" |
| #include "media/audio/audio_manager_base.h" |
| |
| namespace media { |
| |
| class MEDIA_EXPORT AudioManagerPulse : public AudioManagerBase { |
| public: |
| AudioManagerPulse(std::unique_ptr<AudioThread> audio_thread, |
| AudioLogFactory* audio_log_factory, |
| pa_threaded_mainloop* pa_mainloop, |
| pa_context* pa_context); |
| |
| AudioManagerPulse(const AudioManagerPulse&) = delete; |
| AudioManagerPulse& operator=(const AudioManagerPulse&) = delete; |
| |
| ~AudioManagerPulse() override; |
| |
| // Implementation of AudioManager. |
| bool HasAudioOutputDevices() override; |
| bool HasAudioInputDevices() override; |
| void GetAudioInputDeviceNames(AudioDeviceNames* device_names) override; |
| void GetAudioOutputDeviceNames(AudioDeviceNames* device_names) override; |
| AudioParameters GetInputStreamParameters( |
| const std::string& device_id) override; |
| const char* GetName() override; |
| |
| // Implementation of AudioManagerBase. |
| AudioOutputStream* MakeLinearOutputStream( |
| const AudioParameters& params, |
| const LogCallback& log_callback) override; |
| AudioOutputStream* MakeLowLatencyOutputStream( |
| const AudioParameters& params, |
| const std::string& device_id, |
| const LogCallback& log_callback) override; |
| AudioInputStream* MakeLinearInputStream( |
| const AudioParameters& params, |
| const std::string& device_id, |
| const LogCallback& log_callback) override; |
| AudioInputStream* MakeLowLatencyInputStream( |
| const AudioParameters& params, |
| const std::string& device_id, |
| const LogCallback& log_callback) override; |
| std::string GetDefaultInputDeviceID() override; |
| std::string GetDefaultOutputDeviceID() override; |
| std::string GetAssociatedOutputDeviceID( |
| const std::string& input_device_id) override; |
| |
| bool DefaultSourceIsMonitor() const { return default_source_is_monitor_; } |
| |
| protected: |
| void ShutdownOnAudioThread() override; |
| AudioParameters GetPreferredOutputStreamParameters( |
| const std::string& output_device_id, |
| const AudioParameters& input_params) override; |
| |
| private: |
| void GetAudioDeviceNames(bool input, media::AudioDeviceNames* device_names); |
| |
| // Callback to get the devices' info like names, used by GetInputDevices(). |
| static void InputDevicesInfoCallback(pa_context* context, |
| const pa_source_info* info, |
| int eol, |
| void* user_data); |
| static void OutputDevicesInfoCallback(pa_context* context, |
| const pa_sink_info* info, |
| int eol, |
| void* user_data); |
| |
| // Callback to get the native sample rate of PulseAudio, used by |
| // UpdateNativeAudioHardwareInfo(). |
| static void AudioHardwareInfoCallback(pa_context* context, |
| const pa_server_info* info, |
| void* user_data); |
| |
| static void DefaultSourceInfoCallback(pa_context* context, |
| const pa_source_info* info, |
| int eol, |
| void* user_data); |
| |
| // Called by MakeLinearOutputStream and MakeLowLatencyOutputStream. |
| AudioOutputStream* MakeOutputStream(const AudioParameters& params, |
| const std::string& device_id, |
| LogCallback log_callback); |
| |
| // Called by MakeLinearInputStream and MakeLowLatencyInputStream. |
| AudioInputStream* MakeInputStream(const AudioParameters& params, |
| const std::string& device_id, |
| LogCallback log_callback); |
| |
| // Updates |native_input_sample_rate_| and |native_channel_count_|. |
| void UpdateNativeAudioHardwareInfo(); |
| |
| pa_threaded_mainloop* input_mainloop_; |
| pa_context* input_context_; |
| AudioDeviceNames* devices_; |
| int native_input_sample_rate_; |
| int native_channel_count_; |
| std::string default_source_name_; |
| bool default_source_is_monitor_; |
| }; |
| |
| } // namespace media |
| |
| #endif // MEDIA_AUDIO_PULSE_AUDIO_MANAGER_PULSE_H_ |