OLD | NEW |
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 |
(...skipping 22 matching lines...) Expand all Loading... |
33 #include "platform/audio/DirectConvolver.h" | 33 #include "platform/audio/DirectConvolver.h" |
34 #include "platform/audio/FFTConvolver.h" | 34 #include "platform/audio/FFTConvolver.h" |
35 #include "platform/audio/ReverbAccumulationBuffer.h" | 35 #include "platform/audio/ReverbAccumulationBuffer.h" |
36 #include "platform/audio/ReverbConvolverStage.h" | 36 #include "platform/audio/ReverbConvolverStage.h" |
37 #include "platform/audio/ReverbInputBuffer.h" | 37 #include "platform/audio/ReverbInputBuffer.h" |
38 #include "wtf/OwnPtr.h" | 38 #include "wtf/OwnPtr.h" |
39 #include "wtf/RefCounted.h" | 39 #include "wtf/RefCounted.h" |
40 #include "wtf/Vector.h" | 40 #include "wtf/Vector.h" |
41 | 41 |
42 namespace blink { | 42 namespace blink { |
43 class WebThread; | |
44 } | |
45 | |
46 namespace blink { | |
47 | 43 |
48 class AudioChannel; | 44 class AudioChannel; |
| 45 class WebThread; |
49 | 46 |
50 class PLATFORM_EXPORT ReverbConvolver { | 47 class PLATFORM_EXPORT ReverbConvolver { |
51 WTF_MAKE_NONCOPYABLE(ReverbConvolver); | 48 WTF_MAKE_NONCOPYABLE(ReverbConvolver); |
52 public: | 49 public: |
53 // maxFFTSize can be adjusted (from say 2048 to 32768) depending on how much
precision is necessary. | 50 // maxFFTSize can be adjusted (from say 2048 to 32768) depending on how much
precision is necessary. |
54 // For certain tweaky de-convolving applications the phase errors add up qui
ckly and lead to non-sensical results with | 51 // For certain tweaky de-convolving applications the phase errors add up qui
ckly and lead to non-sensical results with |
55 // larger FFT sizes and single-precision floats. In these cases 2048 is a g
ood size. | 52 // larger FFT sizes and single-precision floats. In these cases 2048 is a g
ood size. |
56 // If not doing multi-threaded convolution, then should not go > 8192. | 53 // If not doing multi-threaded convolution, then should not go > 8192. |
57 ReverbConvolver(AudioChannel* impulseResponse, size_t renderSliceSize, size_
t maxFFTSize, size_t convolverRenderPhase, bool useBackgroundThreads); | 54 ReverbConvolver(AudioChannel* impulseResponse, size_t renderSliceSize, size_
t maxFFTSize, size_t convolverRenderPhase, bool useBackgroundThreads); |
58 ~ReverbConvolver(); | 55 ~ReverbConvolver(); |
(...skipping 17 matching lines...) Expand all Loading... |
76 ReverbInputBuffer m_inputBuffer; | 73 ReverbInputBuffer m_inputBuffer; |
77 | 74 |
78 // First stage will be of size m_minFFTSize. Each next stage will be twice
as big until we hit m_maxFFTSize. | 75 // First stage will be of size m_minFFTSize. Each next stage will be twice
as big until we hit m_maxFFTSize. |
79 size_t m_minFFTSize; | 76 size_t m_minFFTSize; |
80 size_t m_maxFFTSize; | 77 size_t m_maxFFTSize; |
81 | 78 |
82 // But don't exceed this size in the real-time thread (if we're doing backgr
ound processing). | 79 // But don't exceed this size in the real-time thread (if we're doing backgr
ound processing). |
83 size_t m_maxRealtimeFFTSize; | 80 size_t m_maxRealtimeFFTSize; |
84 | 81 |
85 // Background thread and synchronization | 82 // Background thread and synchronization |
86 OwnPtr<blink::WebThread> m_backgroundThread; | 83 OwnPtr<WebThread> m_backgroundThread; |
87 }; | 84 }; |
88 | 85 |
89 } // namespace blink | 86 } // namespace blink |
90 | 87 |
91 #endif // ReverbConvolver_h | 88 #endif // ReverbConvolver_h |
OLD | NEW |