1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
|
// 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_CHROMEOS_H_
#define MEDIA_AUDIO_CRAS_AUDIO_MANAGER_CHROMEOS_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 "chromeos/audio/audio_device.h"
#include "media/audio/audio_manager_base.h"
#include "media/audio/cras/audio_manager_cras_base.h"
namespace media {
class MEDIA_EXPORT AudioManagerChromeOS : public AudioManagerCrasBase {
public:
AudioManagerChromeOS(std::unique_ptr<AudioThread> audio_thread,
AudioLogFactory* audio_log_factory);
~AudioManagerChromeOS() 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 GetAssociatedOutputDeviceID(
const std::string& input_device_id) override;
std::string GetDefaultInputDeviceID() override;
std::string GetDefaultOutputDeviceID() override;
std::string GetGroupIDOutput(const std::string& output_device_id) override;
std::string GetGroupIDInput(const std::string& input_device_id) override;
bool Shutdown() 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:
// Get default output buffer size for this board.
int GetDefaultOutputBufferSizePerBoard();
// Get if system AEC is supported or not for this board.
bool GetSystemAecSupportedPerBoard();
// Get what the system AEC group ID is for this board.
int32_t GetSystemAecGroupIdPerBoard();
void GetAudioDeviceNamesImpl(bool is_input, AudioDeviceNames* device_names);
std::string GetHardwareDeviceFromDeviceId(
const chromeos::AudioDeviceList& devices,
bool is_input,
const std::string& device_id);
void GetAudioDevices(chromeos::AudioDeviceList* devices);
void GetAudioDevicesOnMainThread(chromeos::AudioDeviceList* devices,
base::WaitableEvent* event);
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);
void GetSystemAecSupportedOnMainThread(bool* system_aec_supported,
base::WaitableEvent* event);
void GetSystemAecGroupIdOnMainThread(int32_t* group_id,
base::WaitableEvent* event);
void WaitEventOrShutdown(base::WaitableEvent* event);
// Signaled if AudioManagerCras is shutting down.
base::WaitableEvent on_shutdown_;
// 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<AudioManagerChromeOS> weak_this_;
base::WeakPtrFactory<AudioManagerChromeOS> weak_ptr_factory_;
DISALLOW_COPY_AND_ASSIGN(AudioManagerChromeOS);
};
} // namespace media
#endif // MEDIA_AUDIO_CRAS_AUDIO_MANAGER_CHROMEOS_H_
|
