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Side by Side Diff: third_party/WebKit/Source/platform/audio/DynamicsCompressorKernel.cpp

Issue 2050123002: Remove OwnPtr from Blink. (Closed) Base URL: https://chromium.googlesource.com/chromium/src.git@master
Patch Set: First attempt to land. Created 4 years, 6 months ago
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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
11 * notice, this list of conditions and the following disclaimer in the 11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution. 12 * documentation and/or other materials provided with the distribution.
13 * 3. Neither the name of Apple Computer, Inc. ("Apple") nor the names of 13 * 3. Neither the name of Apple Computer, Inc. ("Apple") nor the names of
14 * its contributors may be used to endorse or promote products derived 14 * its contributors may be used to endorse or promote products derived
15 * from this software without specific prior written permission. 15 * from this software without specific prior written permission.
16 * 16 *
17 * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY 17 * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY
18 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 18 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
19 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 19 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
20 * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY 20 * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY
21 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 21 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
22 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 22 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
23 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND 23 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
24 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 24 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
26 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 26 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27 */ 27 */
28 28
29 #include "platform/audio/DynamicsCompressorKernel.h"
30 #include "platform/audio/AudioUtilities.h" 29 #include "platform/audio/AudioUtilities.h"
31 #include "platform/audio/DenormalDisabler.h" 30 #include "platform/audio/DenormalDisabler.h"
31 #include "platform/audio/DynamicsCompressorKernel.h"
32 #include "wtf/MathExtras.h" 32 #include "wtf/MathExtras.h"
33 #include "wtf/PtrUtil.h"
33 #include <algorithm> 34 #include <algorithm>
34 #include <cmath> 35 #include <cmath>
35 36
36 namespace blink { 37 namespace blink {
37 38
38 using namespace AudioUtilities; 39 using namespace AudioUtilities;
39 40
40 // Metering hits peaks instantly, but releases this fast (in seconds). 41 // Metering hits peaks instantly, but releases this fast (in seconds).
41 const float meteringReleaseTimeConstant = 0.325f; 42 const float meteringReleaseTimeConstant = 0.325f;
42 43
(...skipping 22 matching lines...) Expand all
65 m_meteringReleaseK = static_cast<float>(discreteTimeConstantForSampleRate(me teringReleaseTimeConstant, sampleRate)); 66 m_meteringReleaseK = static_cast<float>(discreteTimeConstantForSampleRate(me teringReleaseTimeConstant, sampleRate));
66 } 67 }
67 68
68 void DynamicsCompressorKernel::setNumberOfChannels(unsigned numberOfChannels) 69 void DynamicsCompressorKernel::setNumberOfChannels(unsigned numberOfChannels)
69 { 70 {
70 if (m_preDelayBuffers.size() == numberOfChannels) 71 if (m_preDelayBuffers.size() == numberOfChannels)
71 return; 72 return;
72 73
73 m_preDelayBuffers.clear(); 74 m_preDelayBuffers.clear();
74 for (unsigned i = 0; i < numberOfChannels; ++i) 75 for (unsigned i = 0; i < numberOfChannels; ++i)
75 m_preDelayBuffers.append(adoptPtr(new AudioFloatArray(MaxPreDelayFrames) )); 76 m_preDelayBuffers.append(wrapUnique(new AudioFloatArray(MaxPreDelayFrame s)));
76 } 77 }
77 78
78 void DynamicsCompressorKernel::setPreDelayTime(float preDelayTime) 79 void DynamicsCompressorKernel::setPreDelayTime(float preDelayTime)
79 { 80 {
80 // Re-configure look-ahead section pre-delay if delay time has changed. 81 // Re-configure look-ahead section pre-delay if delay time has changed.
81 unsigned preDelayFrames = preDelayTime * sampleRate(); 82 unsigned preDelayFrames = preDelayTime * sampleRate();
82 if (preDelayFrames > MaxPreDelayFrames - 1) 83 if (preDelayFrames > MaxPreDelayFrames - 1)
83 preDelayFrames = MaxPreDelayFrames - 1; 84 preDelayFrames = MaxPreDelayFrames - 1;
84 85
85 if (m_lastPreDelayFrames != preDelayFrames) { 86 if (m_lastPreDelayFrames != preDelayFrames) {
(...skipping 376 matching lines...) Expand 10 before | Expand all | Expand 10 after
462 m_preDelayBuffers[i]->zero(); 463 m_preDelayBuffers[i]->zero();
463 464
464 m_preDelayReadIndex = 0; 465 m_preDelayReadIndex = 0;
465 m_preDelayWriteIndex = DefaultPreDelayFrames; 466 m_preDelayWriteIndex = DefaultPreDelayFrames;
466 467
467 m_maxAttackCompressionDiffDb = -1; // uninitialized state 468 m_maxAttackCompressionDiffDb = -1; // uninitialized state
468 } 469 }
469 470
470 } // namespace blink 471 } // namespace blink
471 472
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