OLD | NEW |
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 // Audio rendering unit utilizing an AudioRendererSink to output data. | 5 // Audio rendering unit utilizing an AudioRendererSink to output data. |
6 // | 6 // |
7 // This class lives inside three threads during it's lifetime, namely: | 7 // This class lives inside three threads during it's lifetime, namely: |
8 // 1. Render thread | 8 // 1. Render thread |
9 // Where the object is created. | 9 // Where the object is created. |
10 // 2. Media thread (provided via constructor) | 10 // 2. Media thread (provided via constructor) |
(...skipping 46 matching lines...) Expand 10 before | Expand all | Expand 10 after Loading... |
57 public: | 57 public: |
58 // |task_runner| is the thread on which AudioRendererImpl will execute. | 58 // |task_runner| is the thread on which AudioRendererImpl will execute. |
59 // | 59 // |
60 // |sink| is used as the destination for the rendered audio. | 60 // |sink| is used as the destination for the rendered audio. |
61 // | 61 // |
62 // |decoders| contains the AudioDecoders to use when initializing. | 62 // |decoders| contains the AudioDecoders to use when initializing. |
63 AudioRendererImpl( | 63 AudioRendererImpl( |
64 const scoped_refptr<base::SingleThreadTaskRunner>& task_runner, | 64 const scoped_refptr<base::SingleThreadTaskRunner>& task_runner, |
65 AudioRendererSink* sink, | 65 AudioRendererSink* sink, |
66 const CreateAudioDecodersCB& create_audio_decoders_cb, | 66 const CreateAudioDecodersCB& create_audio_decoders_cb, |
67 const scoped_refptr<MediaLog>& media_log); | 67 MediaLog* media_log); |
68 ~AudioRendererImpl() override; | 68 ~AudioRendererImpl() override; |
69 | 69 |
70 // TimeSource implementation. | 70 // TimeSource implementation. |
71 void StartTicking() override; | 71 void StartTicking() override; |
72 void StopTicking() override; | 72 void StopTicking() override; |
73 void SetPlaybackRate(double rate) override; | 73 void SetPlaybackRate(double rate) override; |
74 void SetMediaTime(base::TimeDelta time) override; | 74 void SetMediaTime(base::TimeDelta time) override; |
75 base::TimeDelta CurrentMediaTime() override; | 75 base::TimeDelta CurrentMediaTime() override; |
76 bool GetWallClockTimes( | 76 bool GetWallClockTimes( |
77 const std::vector<base::TimeDelta>& media_timestamps, | 77 const std::vector<base::TimeDelta>& media_timestamps, |
(...skipping 132 matching lines...) Expand 10 before | Expand all | Expand 10 after Loading... |
210 // Whether or not we expect to handle config changes. | 210 // Whether or not we expect to handle config changes. |
211 bool expecting_config_changes_; | 211 bool expecting_config_changes_; |
212 | 212 |
213 // The sink (destination) for rendered audio. |sink_| must only be accessed | 213 // The sink (destination) for rendered audio. |sink_| must only be accessed |
214 // on |task_runner_|. |sink_| must never be called under |lock_| or else we | 214 // on |task_runner_|. |sink_| must never be called under |lock_| or else we |
215 // may deadlock between |task_runner_| and the audio callback thread. | 215 // may deadlock between |task_runner_| and the audio callback thread. |
216 scoped_refptr<media::AudioRendererSink> sink_; | 216 scoped_refptr<media::AudioRendererSink> sink_; |
217 | 217 |
218 std::unique_ptr<AudioBufferStream> audio_buffer_stream_; | 218 std::unique_ptr<AudioBufferStream> audio_buffer_stream_; |
219 | 219 |
220 scoped_refptr<MediaLog> media_log_; | 220 MediaLog* media_log_; |
221 | 221 |
222 // Cached copy of hardware params from |sink_|. | 222 // Cached copy of hardware params from |sink_|. |
223 AudioParameters audio_parameters_; | 223 AudioParameters audio_parameters_; |
224 | 224 |
225 RendererClient* client_; | 225 RendererClient* client_; |
226 | 226 |
227 // Callback provided during Initialize(). | 227 // Callback provided during Initialize(). |
228 PipelineStatusCB init_cb_; | 228 PipelineStatusCB init_cb_; |
229 | 229 |
230 // Callback provided to Flush(). | 230 // Callback provided to Flush(). |
(...skipping 74 matching lines...) Expand 10 before | Expand all | Expand 10 after Loading... |
305 | 305 |
306 // NOTE: Weak pointers must be invalidated before all other member variables. | 306 // NOTE: Weak pointers must be invalidated before all other member variables. |
307 base::WeakPtrFactory<AudioRendererImpl> weak_factory_; | 307 base::WeakPtrFactory<AudioRendererImpl> weak_factory_; |
308 | 308 |
309 DISALLOW_COPY_AND_ASSIGN(AudioRendererImpl); | 309 DISALLOW_COPY_AND_ASSIGN(AudioRendererImpl); |
310 }; | 310 }; |
311 | 311 |
312 } // namespace media | 312 } // namespace media |
313 | 313 |
314 #endif // MEDIA_RENDERERS_AUDIO_RENDERER_IMPL_H_ | 314 #endif // MEDIA_RENDERERS_AUDIO_RENDERER_IMPL_H_ |
OLD | NEW |