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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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| 26 #define ScriptProcessorNode_h | 26 #define ScriptProcessorNode_h |
| 27 | 27 |
| 28 #include "base/gtest_prod_util.h" | 28 #include "base/gtest_prod_util.h" |
| 29 #include "modules/webaudio/AudioNode.h" | 29 #include "modules/webaudio/AudioNode.h" |
| 30 #include "platform/audio/AudioBus.h" | 30 #include "platform/audio/AudioBus.h" |
| 31 #include "wtf/Forward.h" | 31 #include "wtf/Forward.h" |
| 32 #include "wtf/PassRefPtr.h" | 32 #include "wtf/PassRefPtr.h" |
| 33 #include "wtf/RefPtr.h" | 33 #include "wtf/RefPtr.h" |
| 34 #include "wtf/Vector.h" | 34 #include "wtf/Vector.h" |
| 35 | 35 |
| 36 #if ENABLE(WEB_AUDIO) | |
| 37 | |
| 38 namespace blink { | 36 namespace blink { |
| 39 | 37 |
| 40 class AbstractAudioContext; | 38 class AbstractAudioContext; |
| 41 class AudioBuffer; | 39 class AudioBuffer; |
| 42 | 40 |
| 43 // ScriptProcessorNode is an AudioNode which allows for arbitrary synthesis or p
rocessing directly using JavaScript. | 41 // ScriptProcessorNode is an AudioNode which allows for arbitrary synthesis or p
rocessing directly using JavaScript. |
| 44 // The API allows for a variable number of inputs and outputs, although it must
have at least one input or output. | 42 // The API allows for a variable number of inputs and outputs, although it must
have at least one input or output. |
| 45 // This basic implementation supports no more than one input and output. | 43 // This basic implementation supports no more than one input and output. |
| 46 // The "onaudioprocess" attribute is an event listener which will get called per
iodically with an AudioProcessingEvent which has | 44 // The "onaudioprocess" attribute is an event listener which will get called per
iodically with an AudioProcessingEvent which has |
| 47 // AudioBuffers for each input and output. | 45 // AudioBuffers for each input and output. |
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| 107 | 105 |
| 108 DEFINE_ATTRIBUTE_EVENT_LISTENER(audioprocess); | 106 DEFINE_ATTRIBUTE_EVENT_LISTENER(audioprocess); |
| 109 size_t bufferSize() const; | 107 size_t bufferSize() const; |
| 110 | 108 |
| 111 private: | 109 private: |
| 112 ScriptProcessorNode(AbstractAudioContext&, float sampleRate, size_t bufferSi
ze, unsigned numberOfInputChannels, unsigned numberOfOutputChannels); | 110 ScriptProcessorNode(AbstractAudioContext&, float sampleRate, size_t bufferSi
ze, unsigned numberOfInputChannels, unsigned numberOfOutputChannels); |
| 113 }; | 111 }; |
| 114 | 112 |
| 115 } // namespace blink | 113 } // namespace blink |
| 116 | 114 |
| 117 #endif // ENABLE(WEB_AUDIO) | |
| 118 | |
| 119 #endif // ScriptProcessorNode_h | 115 #endif // ScriptProcessorNode_h |
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