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1 /* | 1 /* |
2 * Copyright (C) 2011 Google Inc. All rights reserved. | 2 * Copyright (C) 2011 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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29 #ifndef DynamicsCompressor_h | 29 #ifndef DynamicsCompressor_h |
30 #define DynamicsCompressor_h | 30 #define DynamicsCompressor_h |
31 | 31 |
32 #include "platform/audio/AudioArray.h" | 32 #include "platform/audio/AudioArray.h" |
33 #include "platform/audio/DynamicsCompressorKernel.h" | 33 #include "platform/audio/DynamicsCompressorKernel.h" |
34 #include "platform/audio/ZeroPole.h" | 34 #include "platform/audio/ZeroPole.h" |
35 #include "wtf/Allocator.h" | 35 #include "wtf/Allocator.h" |
36 #include "wtf/Noncopyable.h" | 36 #include "wtf/Noncopyable.h" |
37 #include "wtf/OwnPtr.h" | 37 #include "wtf/OwnPtr.h" |
38 | 38 |
39 #if ENABLE(WEB_AUDIO) | |
40 | |
41 namespace blink { | 39 namespace blink { |
42 | 40 |
43 class AudioBus; | 41 class AudioBus; |
44 | 42 |
45 // DynamicsCompressor implements a flexible audio dynamics compression effect su
ch as | 43 // DynamicsCompressor implements a flexible audio dynamics compression effect su
ch as |
46 // is commonly used in musical production and game audio. It lowers the volume | 44 // is commonly used in musical production and game audio. It lowers the volume |
47 // of the loudest parts of the signal and raises the volume of the softest parts
, | 45 // of the loudest parts of the signal and raises the volume of the softest parts
, |
48 // making the sound richer, fuller, and more controlled. | 46 // making the sound richer, fuller, and more controlled. |
49 | 47 |
50 class PLATFORM_EXPORT DynamicsCompressor { | 48 class PLATFORM_EXPORT DynamicsCompressor { |
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102 | 100 |
103 OwnPtr<const float*[]> m_sourceChannels; | 101 OwnPtr<const float*[]> m_sourceChannels; |
104 OwnPtr<float*[]> m_destinationChannels; | 102 OwnPtr<float*[]> m_destinationChannels; |
105 | 103 |
106 // The core compressor. | 104 // The core compressor. |
107 DynamicsCompressorKernel m_compressor; | 105 DynamicsCompressorKernel m_compressor; |
108 }; | 106 }; |
109 | 107 |
110 } // namespace blink | 108 } // namespace blink |
111 | 109 |
112 #endif // ENABLE(WEB_AUDIO) | |
113 | |
114 #endif // DynamicsCompressor_h | 110 #endif // DynamicsCompressor_h |
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