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Side by Side Diff: Source/modules/webaudio/BiquadDSPKernel.cpp

Issue 403013002: Rename WebCore to blink in Modules (Closed) Base URL: svn://svn.chromium.org/blink/trunk
Patch Set: Created 6 years, 5 months ago
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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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25 #include "config.h" 25 #include "config.h"
26 26
27 #if ENABLE(WEB_AUDIO) 27 #if ENABLE(WEB_AUDIO)
28 28
29 #include "modules/webaudio/BiquadDSPKernel.h" 29 #include "modules/webaudio/BiquadDSPKernel.h"
30 30
31 #include "platform/FloatConversion.h" 31 #include "platform/FloatConversion.h"
32 #include <limits.h> 32 #include <limits.h>
33 #include "wtf/Vector.h" 33 #include "wtf/Vector.h"
34 34
35 namespace WebCore { 35 namespace blink {
36 36
37 // FIXME: As a recursive linear filter, depending on its parameters, a biquad fi lter can have 37 // FIXME: As a recursive linear filter, depending on its parameters, a biquad fi lter can have
38 // an infinite tailTime. In practice, Biquad filters do not usually (except for very high resonance values) 38 // an infinite tailTime. In practice, Biquad filters do not usually (except for very high resonance values)
39 // have a tailTime of longer than approx. 200ms. This value could possibly be ca lculated based on the 39 // have a tailTime of longer than approx. 200ms. This value could possibly be ca lculated based on the
40 // settings of the Biquad. 40 // settings of the Biquad.
41 static const double MaxBiquadDelayTime = 0.2; 41 static const double MaxBiquadDelayTime = 0.2;
42 42
43 void BiquadDSPKernel::updateCoefficientsIfNecessary() 43 void BiquadDSPKernel::updateCoefficientsIfNecessary()
44 { 44 {
45 if (biquadProcessor()->filterCoefficientsDirty()) { 45 if (biquadProcessor()->filterCoefficientsDirty()) {
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183 double BiquadDSPKernel::tailTime() const 183 double BiquadDSPKernel::tailTime() const
184 { 184 {
185 return MaxBiquadDelayTime; 185 return MaxBiquadDelayTime;
186 } 186 }
187 187
188 double BiquadDSPKernel::latencyTime() const 188 double BiquadDSPKernel::latencyTime() const
189 { 189 {
190 return 0; 190 return 0;
191 } 191 }
192 192
193 } // namespace WebCore 193 } // namespace blink
194 194
195 #endif // ENABLE(WEB_AUDIO) 195 #endif // ENABLE(WEB_AUDIO)
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