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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 * | 7 * |
8 * 1. Redistributions of source code must retain the above copyright | 8 * 1. Redistributions of source code must retain the above copyright |
9 * notice, this list of conditions and the following disclaimer. | 9 * notice, this list of conditions and the following disclaimer. |
10 * 2. Redistributions in binary form must reproduce the above copyright | 10 * 2. Redistributions in binary form must reproduce the above copyright |
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33 #include "core/dom/DOMTypedArray.h" | 33 #include "core/dom/DOMTypedArray.h" |
34 #include "modules/ModulesExport.h" | 34 #include "modules/ModulesExport.h" |
35 #include "wtf/PassRefPtr.h" | 35 #include "wtf/PassRefPtr.h" |
36 #include "wtf/RefPtr.h" | 36 #include "wtf/RefPtr.h" |
37 #include "wtf/Vector.h" | 37 #include "wtf/Vector.h" |
38 #include "wtf/build_config.h" | 38 #include "wtf/build_config.h" |
39 | 39 |
40 namespace blink { | 40 namespace blink { |
41 | 41 |
42 class AudioBus; | 42 class AudioBus; |
| 43 class AudioBufferOptions; |
| 44 class BaseAudioContext; |
43 class ExceptionState; | 45 class ExceptionState; |
44 | 46 |
45 class MODULES_EXPORT AudioBuffer final : public GarbageCollected<AudioBuffer>, p
ublic ScriptWrappable { | 47 class MODULES_EXPORT AudioBuffer final : public GarbageCollected<AudioBuffer>, p
ublic ScriptWrappable { |
46 DEFINE_WRAPPERTYPEINFO(); | 48 DEFINE_WRAPPERTYPEINFO(); |
47 public: | 49 public: |
48 static AudioBuffer* create(unsigned numberOfChannels, size_t numberOfFrames,
float sampleRate); | 50 static AudioBuffer* create(unsigned numberOfChannels, size_t numberOfFrames,
float sampleRate); |
49 static AudioBuffer* create(unsigned numberOfChannels, size_t numberOfFrames,
float sampleRate, ExceptionState&); | 51 static AudioBuffer* create(unsigned numberOfChannels, size_t numberOfFrames,
float sampleRate, ExceptionState&); |
| 52 static AudioBuffer* create(BaseAudioContext*, const AudioBufferOptions&, Exc
eptionState&); |
50 | 53 |
51 // Returns 0 if data is not a valid audio file. | 54 // Returns 0 if data is not a valid audio file. |
52 static AudioBuffer* createFromAudioFileData(const void* data, size_t dataSiz
e, bool mixToMono, float sampleRate); | 55 static AudioBuffer* createFromAudioFileData(const void* data, size_t dataSiz
e, bool mixToMono, float sampleRate); |
53 | 56 |
54 static AudioBuffer* createFromAudioBus(AudioBus*); | 57 static AudioBuffer* createFromAudioBus(AudioBus*); |
55 | 58 |
56 // Format | 59 // Format |
57 size_t length() const { return m_length; } | 60 size_t length() const { return m_length; } |
58 double duration() const { return length() / static_cast<double>(sampleRate()
); } | 61 double duration() const { return length() / static_cast<double>(sampleRate()
); } |
59 float sampleRate() const { return m_sampleRate; } | 62 float sampleRate() const { return m_sampleRate; } |
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84 | 87 |
85 float m_sampleRate; | 88 float m_sampleRate; |
86 size_t m_length; | 89 size_t m_length; |
87 | 90 |
88 HeapVector<Member<DOMFloat32Array>> m_channels; | 91 HeapVector<Member<DOMFloat32Array>> m_channels; |
89 }; | 92 }; |
90 | 93 |
91 } // namespace blink | 94 } // namespace blink |
92 | 95 |
93 #endif // AudioBuffer_h | 96 #endif // AudioBuffer_h |
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