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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 |
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83 float m_meteringReleaseK; | 83 float m_meteringReleaseK; |
84 float m_meteringGain; | 84 float m_meteringGain; |
85 | 85 |
86 // Lookahead section. | 86 // Lookahead section. |
87 enum { MaxPreDelayFrames = 1024 }; | 87 enum { MaxPreDelayFrames = 1024 }; |
88 enum { MaxPreDelayFramesMask = MaxPreDelayFrames - 1 }; | 88 enum { MaxPreDelayFramesMask = MaxPreDelayFrames - 1 }; |
89 enum { DefaultPreDelayFrames = 256 }; // setPreDelayTime() will override thi
s initial value | 89 enum { DefaultPreDelayFrames = 256 }; // setPreDelayTime() will override thi
s initial value |
90 unsigned m_lastPreDelayFrames; | 90 unsigned m_lastPreDelayFrames; |
91 void setPreDelayTime(float); | 91 void setPreDelayTime(float); |
92 | 92 |
93 Vector<OwnPtr<AudioFloatArray> > m_preDelayBuffers; | 93 Vector<OwnPtr<AudioFloatArray>> m_preDelayBuffers; |
94 int m_preDelayReadIndex; | 94 int m_preDelayReadIndex; |
95 int m_preDelayWriteIndex; | 95 int m_preDelayWriteIndex; |
96 | 96 |
97 float m_maxAttackCompressionDiffDb; | 97 float m_maxAttackCompressionDiffDb; |
98 | 98 |
99 // Static compression curve. | 99 // Static compression curve. |
100 float kneeCurve(float x, float k); | 100 float kneeCurve(float x, float k); |
101 float saturate(float x, float k); | 101 float saturate(float x, float k); |
102 float slopeAt(float x, float k); | 102 float slopeAt(float x, float k); |
103 float kAtSlope(float desiredSlope); | 103 float kAtSlope(float desiredSlope); |
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122 float m_kneeThresholdDb; | 122 float m_kneeThresholdDb; |
123 float m_ykneeThresholdDb; | 123 float m_ykneeThresholdDb; |
124 | 124 |
125 // Internal parameter for the knee portion of the curve. | 125 // Internal parameter for the knee portion of the curve. |
126 float m_K; | 126 float m_K; |
127 }; | 127 }; |
128 | 128 |
129 } // namespace blink | 129 } // namespace blink |
130 | 130 |
131 #endif // DynamicsCompressorKernel_h | 131 #endif // DynamicsCompressorKernel_h |
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