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1 // Copyright 2013 The Chromium Authors. All rights reserved. | 1 // Copyright 2013 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 #ifndef MEDIA_AUDIO_CLOCKLESS_AUDIO_SINK_H_ | 5 #ifndef MEDIA_AUDIO_CLOCKLESS_AUDIO_SINK_H_ |
6 #define MEDIA_AUDIO_CLOCKLESS_AUDIO_SINK_H_ | 6 #define MEDIA_AUDIO_CLOCKLESS_AUDIO_SINK_H_ |
7 | 7 |
8 #include "base/memory/scoped_ptr.h" | 8 #include "base/memory/scoped_ptr.h" |
9 #include "base/time/time.h" | 9 #include "base/time/time.h" |
10 #include "media/base/audio_renderer_sink.h" | 10 #include "media/base/audio_renderer_sink.h" |
11 | 11 |
12 namespace base { | 12 namespace base { |
13 class SingleThreadTaskRunner; | 13 class SingleThreadTaskRunner; |
14 } | 14 } |
15 | 15 |
16 namespace media { | 16 namespace media { |
17 class AudioBus; | 17 class AudioBus; |
18 class ClocklessAudioSinkThread; | 18 class ClocklessAudioSinkThread; |
19 | 19 |
20 // Implementation of an AudioRendererSink that consumes the audio as fast as | 20 // Implementation of an AudioRendererSink that consumes the audio as fast as |
21 // possible. This class does not support multiple Play()/Pause() events. | 21 // possible. This class does not support multiple Play()/Pause() events. |
22 class MEDIA_EXPORT ClocklessAudioSink | 22 class MEDIA_EXPORT ClocklessAudioSink |
23 : NON_EXPORTED_BASE(public AudioRendererSink) { | 23 : NON_EXPORTED_BASE(public AudioRendererSink) { |
24 public: | 24 public: |
25 ClocklessAudioSink(); | 25 ClocklessAudioSink(); |
26 | 26 |
27 // AudioRendererSink implementation. | 27 // AudioRendererSink implementation. |
28 virtual void Initialize(const AudioParameters& params, | 28 virtual void Initialize(const AudioParameters& params, |
29 RenderCallback* callback) OVERRIDE; | 29 RenderCallback* callback) override; |
30 virtual void Start() OVERRIDE; | 30 virtual void Start() override; |
31 virtual void Stop() OVERRIDE; | 31 virtual void Stop() override; |
32 virtual void Pause() OVERRIDE; | 32 virtual void Pause() override; |
33 virtual void Play() OVERRIDE; | 33 virtual void Play() override; |
34 virtual bool SetVolume(double volume) OVERRIDE; | 34 virtual bool SetVolume(double volume) override; |
35 | 35 |
36 // Returns the time taken to consume all the audio. | 36 // Returns the time taken to consume all the audio. |
37 base::TimeDelta render_time() { return playback_time_; } | 37 base::TimeDelta render_time() { return playback_time_; } |
38 | 38 |
39 protected: | 39 protected: |
40 virtual ~ClocklessAudioSink(); | 40 virtual ~ClocklessAudioSink(); |
41 | 41 |
42 private: | 42 private: |
43 scoped_ptr<ClocklessAudioSinkThread> thread_; | 43 scoped_ptr<ClocklessAudioSinkThread> thread_; |
44 bool initialized_; | 44 bool initialized_; |
45 bool playing_; | 45 bool playing_; |
46 | 46 |
47 // Time taken in last set of Render() calls. | 47 // Time taken in last set of Render() calls. |
48 base::TimeDelta playback_time_; | 48 base::TimeDelta playback_time_; |
49 | 49 |
50 DISALLOW_COPY_AND_ASSIGN(ClocklessAudioSink); | 50 DISALLOW_COPY_AND_ASSIGN(ClocklessAudioSink); |
51 }; | 51 }; |
52 | 52 |
53 } // namespace media | 53 } // namespace media |
54 | 54 |
55 #endif // MEDIA_AUDIO_CLOCKLESS_AUDIO_SINK_H_ | 55 #endif // MEDIA_AUDIO_CLOCKLESS_AUDIO_SINK_H_ |
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