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| 1 // Copyright 2014 The Chromium Authors. All rights reserved. | 1 // Copyright 2014 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_AUDIO_OUTPUT_STREAM_SINK_H_ | 5 #ifndef MEDIA_AUDIO_AUDIO_OUTPUT_STREAM_SINK_H_ |
| 6 #define MEDIA_AUDIO_AUDIO_OUTPUT_STREAM_SINK_H_ | 6 #define MEDIA_AUDIO_AUDIO_OUTPUT_STREAM_SINK_H_ |
| 7 | 7 |
| 8 #include <string> | |
| 9 | |
| 10 #include "base/compiler_specific.h" | 8 #include "base/compiler_specific.h" |
| 11 #include "base/single_thread_task_runner.h" | 9 #include "base/single_thread_task_runner.h" |
| 12 #include "base/synchronization/lock.h" | 10 #include "base/synchronization/lock.h" |
| 13 #include "media/audio/audio_io.h" | 11 #include "media/audio/audio_io.h" |
| 14 #include "media/base/audio_renderer_sink.h" | 12 #include "media/base/audio_renderer_sink.h" |
| 15 #include "media/base/media_export.h" | 13 #include "media/base/media_export.h" |
| 16 | 14 |
| 17 namespace media { | 15 namespace media { |
| 18 | 16 |
| 19 // Wrapper which exposes the browser side audio interface (AudioOutputStream) as | 17 // Wrapper which exposes the browser side audio interface (AudioOutputStream) as |
| 20 // if it were a renderer side audio interface (AudioRendererSink). Note: This | 18 // if it were a renderer side audio interface (AudioRendererSink). Note: This |
| 21 // will not work for sandboxed renderers. | 19 // will not work for sandboxed renderers. |
| 22 // | 20 // |
| 23 // TODO(dalecurtis): Delete this class once we have a proper mojo audio service; | 21 // TODO(dalecurtis): Delete this class once we have a proper mojo audio service; |
| 24 // tracked by http://crbug.com/425368 | 22 // tracked by http://crbug.com/425368 |
| 25 class MEDIA_EXPORT AudioOutputStreamSink | 23 class MEDIA_EXPORT AudioOutputStreamSink |
| 26 : NON_EXPORTED_BASE(public AudioRendererSink), | 24 : NON_EXPORTED_BASE(public AudioRendererSink), |
| 27 public AudioOutputStream::AudioSourceCallback { | 25 public AudioOutputStream::AudioSourceCallback { |
| 28 public: | 26 public: |
| 29 AudioOutputStreamSink(); | 27 AudioOutputStreamSink(); |
| 30 | 28 |
| 31 // AudioRendererSink implementation. | 29 // AudioRendererSink implementation. |
| 32 void Initialize(const AudioParameters& params, | 30 void Initialize(const AudioParameters& params, |
| 33 RenderCallback* callback) override; | 31 RenderCallback* callback) override; |
| 34 void Start() override; | 32 void Start() override; |
| 35 void Stop() override; | 33 void Stop() override; |
| 36 void Pause() override; | 34 void Pause() override; |
| 37 void Play() override; | 35 void Play() override; |
| 38 bool SetVolume(double volume) override; | 36 bool SetVolume(double volume) override; |
| 39 void SwitchOutputDevice(const std::string& device_id, | |
| 40 const GURL& security_origin, | |
| 41 const SwitchOutputDeviceCB& callback) override; | |
| 42 | 37 |
| 43 // AudioSourceCallback implementation. | 38 // AudioSourceCallback implementation. |
| 44 int OnMoreData(AudioBus* dest, uint32 total_bytes_delay) override; | 39 int OnMoreData(AudioBus* dest, uint32 total_bytes_delay) override; |
| 45 void OnError(AudioOutputStream* stream) override; | 40 void OnError(AudioOutputStream* stream) override; |
| 46 | 41 |
| 47 private: | 42 private: |
| 48 ~AudioOutputStreamSink() override; | 43 ~AudioOutputStreamSink() override; |
| 49 | 44 |
| 50 // Helper methods for running AudioManager methods on the audio thread. | 45 // Helper methods for running AudioManager methods on the audio thread. |
| 51 void DoStart(); | 46 void DoStart(); |
| (...skipping 24 matching lines...) Expand all Loading... |
| 76 // Lock and callback for forwarding OnMoreData() calls into Render() calls. | 71 // Lock and callback for forwarding OnMoreData() calls into Render() calls. |
| 77 base::Lock callback_lock_; | 72 base::Lock callback_lock_; |
| 78 RenderCallback* active_render_callback_; | 73 RenderCallback* active_render_callback_; |
| 79 | 74 |
| 80 DISALLOW_COPY_AND_ASSIGN(AudioOutputStreamSink); | 75 DISALLOW_COPY_AND_ASSIGN(AudioOutputStreamSink); |
| 81 }; | 76 }; |
| 82 | 77 |
| 83 } // namepace media | 78 } // namepace media |
| 84 | 79 |
| 85 #endif // MEDIA_AUDIO_AUDIO_OUTPUT_STREAM_SINK_H_ | 80 #endif // MEDIA_AUDIO_AUDIO_OUTPUT_STREAM_SINK_H_ |
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