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Side by Side Diff: media/audio/audio_input_device.h

Issue 623263003: replace OVERRIDE and FINAL with override and final in media/ (Closed) Base URL: https://chromium.googlesource.com/chromium/src.git@master
Patch Set: Created 6 years, 2 months ago
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1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. 1 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be 2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file. 3 // found in the LICENSE file.
4 4
5 // Low-latency audio capturing class utilizing audio input stream provided 5 // Low-latency audio capturing class utilizing audio input stream provided
6 // by a server (browser) process by use of an IPC interface. 6 // by a server (browser) process by use of an IPC interface.
7 // 7 //
8 // Relationship of classes: 8 // Relationship of classes:
9 // 9 //
10 // AudioInputController AudioInputDevice 10 // AudioInputController AudioInputDevice
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80 NON_EXPORTED_BASE(public ScopedTaskRunnerObserver) { 80 NON_EXPORTED_BASE(public ScopedTaskRunnerObserver) {
81 public: 81 public:
82 // NOTE: Clients must call Initialize() before using. 82 // NOTE: Clients must call Initialize() before using.
83 AudioInputDevice( 83 AudioInputDevice(
84 scoped_ptr<AudioInputIPC> ipc, 84 scoped_ptr<AudioInputIPC> ipc,
85 const scoped_refptr<base::SingleThreadTaskRunner>& io_task_runner); 85 const scoped_refptr<base::SingleThreadTaskRunner>& io_task_runner);
86 86
87 // AudioCapturerSource implementation. 87 // AudioCapturerSource implementation.
88 virtual void Initialize(const AudioParameters& params, 88 virtual void Initialize(const AudioParameters& params,
89 CaptureCallback* callback, 89 CaptureCallback* callback,
90 int session_id) OVERRIDE; 90 int session_id) override;
91 virtual void Start() OVERRIDE; 91 virtual void Start() override;
92 virtual void Stop() OVERRIDE; 92 virtual void Stop() override;
93 virtual void SetVolume(double volume) OVERRIDE; 93 virtual void SetVolume(double volume) override;
94 virtual void SetAutomaticGainControl(bool enabled) OVERRIDE; 94 virtual void SetAutomaticGainControl(bool enabled) override;
95 95
96 protected: 96 protected:
97 friend class base::RefCountedThreadSafe<AudioInputDevice>; 97 friend class base::RefCountedThreadSafe<AudioInputDevice>;
98 virtual ~AudioInputDevice(); 98 virtual ~AudioInputDevice();
99 99
100 // Methods called on IO thread ---------------------------------------------- 100 // Methods called on IO thread ----------------------------------------------
101 // AudioInputIPCDelegate implementation. 101 // AudioInputIPCDelegate implementation.
102 virtual void OnStreamCreated(base::SharedMemoryHandle handle, 102 virtual void OnStreamCreated(base::SharedMemoryHandle handle,
103 base::SyncSocket::Handle socket_handle, 103 base::SyncSocket::Handle socket_handle,
104 int length, 104 int length,
105 int total_segments) OVERRIDE; 105 int total_segments) override;
106 virtual void OnVolume(double volume) OVERRIDE; 106 virtual void OnVolume(double volume) override;
107 virtual void OnStateChanged( 107 virtual void OnStateChanged(
108 AudioInputIPCDelegate::State state) OVERRIDE; 108 AudioInputIPCDelegate::State state) override;
109 virtual void OnIPCClosed() OVERRIDE; 109 virtual void OnIPCClosed() override;
110 110
111 private: 111 private:
112 // Note: The ordering of members in this enum is critical to correct behavior! 112 // Note: The ordering of members in this enum is critical to correct behavior!
113 enum State { 113 enum State {
114 IPC_CLOSED, // No more IPCs can take place. 114 IPC_CLOSED, // No more IPCs can take place.
115 IDLE, // Not started. 115 IDLE, // Not started.
116 CREATING_STREAM, // Waiting for OnStreamCreated() to be called back. 116 CREATING_STREAM, // Waiting for OnStreamCreated() to be called back.
117 RECORDING, // Receiving audio data. 117 RECORDING, // Receiving audio data.
118 }; 118 };
119 119
120 // Methods called on IO thread ---------------------------------------------- 120 // Methods called on IO thread ----------------------------------------------
121 // The following methods are tasks posted on the IO thread that needs to 121 // The following methods are tasks posted on the IO thread that needs to
122 // be executed on that thread. They interact with AudioInputMessageFilter and 122 // be executed on that thread. They interact with AudioInputMessageFilter and
123 // sends IPC messages on that thread. 123 // sends IPC messages on that thread.
124 void StartUpOnIOThread(); 124 void StartUpOnIOThread();
125 void ShutDownOnIOThread(); 125 void ShutDownOnIOThread();
126 void SetVolumeOnIOThread(double volume); 126 void SetVolumeOnIOThread(double volume);
127 void SetAutomaticGainControlOnIOThread(bool enabled); 127 void SetAutomaticGainControlOnIOThread(bool enabled);
128 128
129 // base::MessageLoop::DestructionObserver implementation for the IO loop. 129 // base::MessageLoop::DestructionObserver implementation for the IO loop.
130 // If the IO loop dies before we do, we shut down the audio thread from here. 130 // If the IO loop dies before we do, we shut down the audio thread from here.
131 virtual void WillDestroyCurrentMessageLoop() OVERRIDE; 131 virtual void WillDestroyCurrentMessageLoop() override;
132 132
133 AudioParameters audio_parameters_; 133 AudioParameters audio_parameters_;
134 134
135 CaptureCallback* callback_; 135 CaptureCallback* callback_;
136 136
137 // A pointer to the IPC layer that takes care of sending requests over to 137 // A pointer to the IPC layer that takes care of sending requests over to
138 // the AudioInputRendererHost. Only valid when state_ != IPC_CLOSED and must 138 // the AudioInputRendererHost. Only valid when state_ != IPC_CLOSED and must
139 // only be accessed on the IO thread. 139 // only be accessed on the IO thread.
140 scoped_ptr<AudioInputIPC> ipc_; 140 scoped_ptr<AudioInputIPC> ipc_;
141 141
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167 // TODO(miu): Replace this by changing AudioCapturerSource to accept the 167 // TODO(miu): Replace this by changing AudioCapturerSource to accept the
168 // callback via Start(). See http://crbug.com/151051 for details. 168 // callback via Start(). See http://crbug.com/151051 for details.
169 bool stopping_hack_; 169 bool stopping_hack_;
170 170
171 DISALLOW_IMPLICIT_CONSTRUCTORS(AudioInputDevice); 171 DISALLOW_IMPLICIT_CONSTRUCTORS(AudioInputDevice);
172 }; 172 };
173 173
174 } // namespace media 174 } // namespace media
175 175
176 #endif // MEDIA_AUDIO_AUDIO_INPUT_DEVICE_H_ 176 #endif // MEDIA_AUDIO_AUDIO_INPUT_DEVICE_H_
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