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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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| 102 | 102 |
| 103 DECLARE_VIRTUAL_TRACE(); | 103 DECLARE_VIRTUAL_TRACE(); |
| 104 | 104 |
| 105 // Is the destination node initialized and ready to handle audio? | 105 // Is the destination node initialized and ready to handle audio? |
| 106 bool isDestinationInitialized() const { | 106 bool isDestinationInitialized() const { |
| 107 AudioDestinationNode* dest = destination(); | 107 AudioDestinationNode* dest = destination(); |
| 108 return dest ? dest->audioDestinationHandler().isInitialized() : false; | 108 return dest ? dest->audioDestinationHandler().isInitialized() : false; |
| 109 } | 109 } |
| 110 | 110 |
| 111 // Document notification | 111 // Document notification |
| 112 void stop() final; | 112 void contextDestroyed() final; |
| 113 bool hasPendingActivity() const final; | 113 bool hasPendingActivity() const final; |
| 114 | 114 |
| 115 // Cannnot be called from the audio thread. | 115 // Cannnot be called from the audio thread. |
| 116 AudioDestinationNode* destination() const; | 116 AudioDestinationNode* destination() const; |
| 117 | 117 |
| 118 size_t currentSampleFrame() const { | 118 size_t currentSampleFrame() const { |
| 119 // TODO: What is the correct value for the current frame if the destination
node has gone | 119 // TODO: What is the correct value for the current frame if the destination
node has gone |
| 120 // away? 0 is a valid frame. | 120 // away? 0 is a valid frame. |
| 121 return m_destinationNode | 121 return m_destinationNode |
| 122 ? m_destinationNode->audioDestinationHandler() | 122 ? m_destinationNode->audioDestinationHandler() |
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| 410 Member<PeriodicWave> m_periodicWaveTriangle; | 410 Member<PeriodicWave> m_periodicWaveTriangle; |
| 411 | 411 |
| 412 // This is considering 32 is large enough for multiple channels audio. | 412 // This is considering 32 is large enough for multiple channels audio. |
| 413 // It is somewhat arbitrary and could be increased if necessary. | 413 // It is somewhat arbitrary and could be increased if necessary. |
| 414 enum { MaxNumberOfChannels = 32 }; | 414 enum { MaxNumberOfChannels = 32 }; |
| 415 }; | 415 }; |
| 416 | 416 |
| 417 } // namespace blink | 417 } // namespace blink |
| 418 | 418 |
| 419 #endif // BaseAudioContext_h | 419 #endif // BaseAudioContext_h |
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