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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 |
| (...skipping 21 matching lines...) Expand all Loading... |
| 32 #include "platform/PlatformExport.h" | 32 #include "platform/PlatformExport.h" |
| 33 #include "platform/audio/AudioArray.h" | 33 #include "platform/audio/AudioArray.h" |
| 34 #include "wtf/Allocator.h" | 34 #include "wtf/Allocator.h" |
| 35 #include <complex> | 35 #include <complex> |
| 36 #include <sys/types.h> | 36 #include <sys/types.h> |
| 37 | 37 |
| 38 #if USE(WEBAUDIO_IPP) | 38 #if USE(WEBAUDIO_IPP) |
| 39 #include <ipps.h> | 39 #include <ipps.h> |
| 40 #endif // USE(WEBAUDIO_IPP) | 40 #endif // USE(WEBAUDIO_IPP) |
| 41 | 41 |
| 42 #if ENABLE(WEB_AUDIO) | |
| 43 | |
| 44 namespace blink { | 42 namespace blink { |
| 45 | 43 |
| 46 // A basic biquad (two-zero / two-pole digital filter) | 44 // A basic biquad (two-zero / two-pole digital filter) |
| 47 // | 45 // |
| 48 // It can be configured to a number of common and very useful filters: | 46 // It can be configured to a number of common and very useful filters: |
| 49 // lowpass, highpass, shelving, parameteric, notch, allpass, ... | 47 // lowpass, highpass, shelving, parameteric, notch, allpass, ... |
| 50 | 48 |
| 51 class PLATFORM_EXPORT Biquad final { | 49 class PLATFORM_EXPORT Biquad final { |
| 52 DISALLOW_NEW(); | 50 DISALLOW_NEW(); |
| 53 public: | 51 public: |
| (...skipping 50 matching lines...) Expand 10 before | Expand all | Expand 10 after Loading... |
| 104 // Filter memory | 102 // Filter memory |
| 105 double m_x1; // input delayed by 1 sample | 103 double m_x1; // input delayed by 1 sample |
| 106 double m_x2; // input delayed by 2 samples | 104 double m_x2; // input delayed by 2 samples |
| 107 double m_y1; // output delayed by 1 sample | 105 double m_y1; // output delayed by 1 sample |
| 108 double m_y2; // output delayed by 2 samples | 106 double m_y2; // output delayed by 2 samples |
| 109 #endif | 107 #endif |
| 110 }; | 108 }; |
| 111 | 109 |
| 112 } // namespace blink | 110 } // namespace blink |
| 113 | 111 |
| 114 #endif // ENABLE(WEB_AUDIO) | |
| 115 | |
| 116 #endif // Biquad_h | 112 #endif // Biquad_h |
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Chromium Code Reviews
Issue 1557363002:
Remove the WEB_AUDIO compile time flag (Closed)
Base URL: https://chromium.googlesource.com/chromium/src.git@master