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1 /* | 1 /* |
2 * Copyright (C) 2010, Google Inc. All rights reserved. | 2 * Copyright (C) 2010, Google Inc. All rights reserved. |
3 * | 3 * |
4 * Redistribution and use in source and binary forms, with or without | 4 * Redistribution and use in source and binary forms, with or without |
5 * modification, are permitted provided that the following conditions | 5 * modification, are permitted provided that the following conditions |
6 * are met: | 6 * are met: |
7 * 1. Redistributions of source code must retain the above copyright | 7 * 1. Redistributions of source code must retain the above copyright |
8 * notice, this list of conditions and the following disclaimer. | 8 * notice, this list of conditions and the following disclaimer. |
9 * 2. Redistributions in binary form must reproduce the above copyright | 9 * 2. Redistributions in binary form must reproduce the above copyright |
10 * notice, this list of conditions and the following disclaimer in the | 10 * notice, this list of conditions and the following disclaimer in the |
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173 // The minimum playbackRate value ever used for this source. | 173 // The minimum playbackRate value ever used for this source. |
174 double min_playback_rate_; | 174 double min_playback_rate_; |
175 | 175 |
176 // |min_playback_rate_| may be updated by the audio thread | 176 // |min_playback_rate_| may be updated by the audio thread |
177 // while the main thread checks if the node is in a stoppable | 177 // while the main thread checks if the node is in a stoppable |
178 // state, hence access needs to be atomic. | 178 // state, hence access needs to be atomic. |
179 // | 179 // |
180 // TODO: when the codebase adopts std::atomic<>, use it for | 180 // TODO: when the codebase adopts std::atomic<>, use it for |
181 // |min_playback_rate_|. | 181 // |min_playback_rate_|. |
182 Mutex min_playback_rate_mutex_; | 182 Mutex min_playback_rate_mutex_; |
183 | |
184 // True if the |buffer| attribute has ever been set to a non-null | |
185 // value. Defaults to false. | |
186 bool buffer_has_been_set_; | |
hongchan
2017/07/28 18:45:32
Add ` = false;` and remove the comment about the d
Raymond Toy
2017/07/28 19:16:55
The constructor needs to initialize other things,
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183 }; | 187 }; |
184 | 188 |
185 class AudioBufferSourceNode final : public AudioScheduledSourceNode { | 189 class AudioBufferSourceNode final : public AudioScheduledSourceNode { |
186 DEFINE_WRAPPERTYPEINFO(); | 190 DEFINE_WRAPPERTYPEINFO(); |
187 | 191 |
188 public: | 192 public: |
189 static AudioBufferSourceNode* Create(BaseAudioContext&, ExceptionState&); | 193 static AudioBufferSourceNode* Create(BaseAudioContext&, ExceptionState&); |
190 static AudioBufferSourceNode* Create(BaseAudioContext*, | 194 static AudioBufferSourceNode* Create(BaseAudioContext*, |
191 AudioBufferSourceOptions&, | 195 AudioBufferSourceOptions&, |
192 ExceptionState&); | 196 ExceptionState&); |
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215 private: | 219 private: |
216 AudioBufferSourceNode(BaseAudioContext&); | 220 AudioBufferSourceNode(BaseAudioContext&); |
217 | 221 |
218 Member<AudioParam> playback_rate_; | 222 Member<AudioParam> playback_rate_; |
219 Member<AudioParam> detune_; | 223 Member<AudioParam> detune_; |
220 }; | 224 }; |
221 | 225 |
222 } // namespace blink | 226 } // namespace blink |
223 | 227 |
224 #endif // AudioBufferSourceNode_h | 228 #endif // AudioBufferSourceNode_h |
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