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// Copyright 2020 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_CRAS_AUDIO_MANAGER_CRAS_H_
#define MEDIA_AUDIO_CRAS_AUDIO_MANAGER_CRAS_H_
#include <cras_types.h>
#include <memory>
#include <string>
#include <vector>
#include "base/compiler_specific.h"
#include "base/macros.h"
#include "base/memory/ref_counted.h"
#include "media/audio/cras/audio_manager_cras_base.h"
namespace media {
class MEDIA_EXPORT AudioManagerCras : public AudioManagerCrasBase {
public:
AudioManagerCras(std::unique_ptr<AudioThread> audio_thread,
AudioLogFactory* audio_log_factory);
~AudioManagerCras() override;
// AudioManager implementation.
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;
std::string GetDefaultInputDeviceID() override;
std::string GetDefaultOutputDeviceID() override;
std::string GetGroupIDInput(const std::string& device_id) override;
std::string GetGroupIDOutput(const std::string& device_id) override;
std::string GetAssociatedOutputDeviceID(
const std::string& input_device_id) override;
// AudioManagerCrasBase implementation.
bool IsDefault(const std::string& device_id, bool is_input) override;
enum CRAS_CLIENT_TYPE GetClientType() override;
protected:
AudioParameters GetPreferredOutputStreamParameters(
const std::string& output_device_id,
const AudioParameters& input_params) override;
private:
uint64_t GetPrimaryActiveInputNode();
uint64_t GetPrimaryActiveOutputNode();
void GetPrimaryActiveInputNodeOnMainThread(uint64_t* active_input_node_id,
base::WaitableEvent* event);
void GetPrimaryActiveOutputNodeOnMainThread(uint64_t* active_output_node_id,
base::WaitableEvent* event);
void GetDefaultOutputBufferSizeOnMainThread(int32_t* buffer_size,
base::WaitableEvent* event);
// Task runner of browser main thread. CrasAudioHandler should be only
// accessed on this thread.
scoped_refptr<base::SingleThreadTaskRunner> main_task_runner_;
// For posting tasks from audio thread to |main_task_runner_|.
base::WeakPtr<AudioManagerCras> weak_this_;
base::WeakPtrFactory<AudioManagerCras> weak_ptr_factory_;
DISALLOW_COPY_AND_ASSIGN(AudioManagerCras);
};
} // namespace media
#endif // MEDIA_AUDIO_CRAS_AUDIO_MANAGER_CRAS_H_
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