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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 // 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) |
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22 #include <deque> | 22 #include <deque> |
23 | 23 |
24 #include "base/gtest_prod_util.h" | 24 #include "base/gtest_prod_util.h" |
25 #include "base/memory/scoped_ptr.h" | 25 #include "base/memory/scoped_ptr.h" |
26 #include "base/memory/weak_ptr.h" | 26 #include "base/memory/weak_ptr.h" |
27 #include "base/synchronization/lock.h" | 27 #include "base/synchronization/lock.h" |
28 #include "media/base/audio_decoder.h" | 28 #include "media/base/audio_decoder.h" |
29 #include "media/base/audio_renderer.h" | 29 #include "media/base/audio_renderer.h" |
30 #include "media/base/audio_renderer_sink.h" | 30 #include "media/base/audio_renderer_sink.h" |
31 #include "media/base/decryptor.h" | 31 #include "media/base/decryptor.h" |
| 32 #include "media/base/media_log.h" |
32 #include "media/base/time_source.h" | 33 #include "media/base/time_source.h" |
33 #include "media/filters/audio_renderer_algorithm.h" | 34 #include "media/filters/audio_renderer_algorithm.h" |
34 #include "media/filters/decoder_stream.h" | 35 #include "media/filters/decoder_stream.h" |
35 | 36 |
36 namespace base { | 37 namespace base { |
37 class SingleThreadTaskRunner; | 38 class SingleThreadTaskRunner; |
38 } | 39 } |
39 | 40 |
40 namespace media { | 41 namespace media { |
41 | 42 |
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57 // | 58 // |
58 // |decoders| contains the AudioDecoders to use when initializing. | 59 // |decoders| contains the AudioDecoders to use when initializing. |
59 // | 60 // |
60 // |set_decryptor_ready_cb| is fired when the audio decryptor is available | 61 // |set_decryptor_ready_cb| is fired when the audio decryptor is available |
61 // (only applicable if the stream is encrypted and we have a decryptor). | 62 // (only applicable if the stream is encrypted and we have a decryptor). |
62 AudioRendererImpl( | 63 AudioRendererImpl( |
63 const scoped_refptr<base::SingleThreadTaskRunner>& task_runner, | 64 const scoped_refptr<base::SingleThreadTaskRunner>& task_runner, |
64 AudioRendererSink* sink, | 65 AudioRendererSink* sink, |
65 ScopedVector<AudioDecoder> decoders, | 66 ScopedVector<AudioDecoder> decoders, |
66 const SetDecryptorReadyCB& set_decryptor_ready_cb, | 67 const SetDecryptorReadyCB& set_decryptor_ready_cb, |
67 const AudioHardwareConfig& hardware_params); | 68 const AudioHardwareConfig& hardware_params, |
| 69 const scoped_refptr<MediaLog>& media_log); |
68 virtual ~AudioRendererImpl(); | 70 virtual ~AudioRendererImpl(); |
69 | 71 |
70 // TimeSource implementation. | 72 // TimeSource implementation. |
71 virtual void StartTicking() OVERRIDE; | 73 virtual void StartTicking() OVERRIDE; |
72 virtual void StopTicking() OVERRIDE; | 74 virtual void StopTicking() OVERRIDE; |
73 virtual void SetPlaybackRate(float rate) OVERRIDE; | 75 virtual void SetPlaybackRate(float rate) OVERRIDE; |
74 virtual void SetMediaTime(base::TimeDelta time) OVERRIDE; | 76 virtual void SetMediaTime(base::TimeDelta time) OVERRIDE; |
75 virtual base::TimeDelta CurrentMediaTime() OVERRIDE; | 77 virtual base::TimeDelta CurrentMediaTime() OVERRIDE; |
76 | 78 |
77 // AudioRenderer implementation. | 79 // AudioRenderer implementation. |
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256 | 258 |
257 // NOTE: Weak pointers must be invalidated before all other member variables. | 259 // NOTE: Weak pointers must be invalidated before all other member variables. |
258 base::WeakPtrFactory<AudioRendererImpl> weak_factory_; | 260 base::WeakPtrFactory<AudioRendererImpl> weak_factory_; |
259 | 261 |
260 DISALLOW_COPY_AND_ASSIGN(AudioRendererImpl); | 262 DISALLOW_COPY_AND_ASSIGN(AudioRendererImpl); |
261 }; | 263 }; |
262 | 264 |
263 } // namespace media | 265 } // namespace media |
264 | 266 |
265 #endif // MEDIA_FILTERS_AUDIO_RENDERER_IMPL_H_ | 267 #endif // MEDIA_FILTERS_AUDIO_RENDERER_IMPL_H_ |
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