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

Issue 2801083003: Rewrite references to "wtf/" to "platform/wtf/" in modules. (Closed)
Patch Set: Rebase again^3. Will try landing directly. Created 3 years, 8 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
11 * documentation and/or other materials provided with the distribution. 11 * documentation and/or other materials provided with the distribution.
12 * 12 *
13 * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' AND 13 * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' AND
14 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 14 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
16 * ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS BE LIABLE 16 * ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS BE LIABLE
17 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 17 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
18 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 18 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
19 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER 19 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
20 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 20 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
21 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 21 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
22 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH 22 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
23 * DAMAGE. 23 * DAMAGE.
24 */ 24 */
25 25
26 #include "modules/webaudio/BiquadDSPKernel.h" 26 #include "modules/webaudio/BiquadDSPKernel.h"
27 #include <limits.h>
27 #include "platform/audio/AudioUtilities.h" 28 #include "platform/audio/AudioUtilities.h"
28 #include "wtf/MathExtras.h" 29 #include "platform/wtf/MathExtras.h"
29 #include "wtf/Vector.h" 30 #include "platform/wtf/Vector.h"
30 #include <limits.h>
31 31
32 namespace blink { 32 namespace blink {
33 33
34 // FIXME: As a recursive linear filter, depending on its parameters, a biquad 34 // FIXME: As a recursive linear filter, depending on its parameters, a biquad
35 // filter can have an infinite tailTime. In practice, Biquad filters do not 35 // filter can have an infinite tailTime. In practice, Biquad filters do not
36 // usually (except for very high resonance values) have a tailTime of longer 36 // usually (except for very high resonance values) have a tailTime of longer
37 // than approx. 200ms. This value could possibly be calculated based on the 37 // than approx. 200ms. This value could possibly be calculated based on the
38 // settings of the Biquad. 38 // settings of the Biquad.
39 static const double kMaxBiquadDelayTime = 0.2; 39 static const double kMaxBiquadDelayTime = 0.2;
40 40
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200 200
201 double BiquadDSPKernel::TailTime() const { 201 double BiquadDSPKernel::TailTime() const {
202 return kMaxBiquadDelayTime; 202 return kMaxBiquadDelayTime;
203 } 203 }
204 204
205 double BiquadDSPKernel::LatencyTime() const { 205 double BiquadDSPKernel::LatencyTime() const {
206 return 0; 206 return 0;
207 } 207 }
208 208
209 } // namespace blink 209 } // namespace blink
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