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Side by Side Diff: Source/modules/webaudio/RealtimeAnalyser.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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33 #include "platform/audio/VectorMath.h" 33 #include "platform/audio/VectorMath.h"
34 34
35 #include <algorithm> 35 #include <algorithm>
36 #include <limits.h> 36 #include <limits.h>
37 #include "wtf/Complex.h" 37 #include "wtf/Complex.h"
38 #include "wtf/Float32Array.h" 38 #include "wtf/Float32Array.h"
39 #include "wtf/MainThread.h" 39 #include "wtf/MainThread.h"
40 #include "wtf/MathExtras.h" 40 #include "wtf/MathExtras.h"
41 #include "wtf/Uint8Array.h" 41 #include "wtf/Uint8Array.h"
42 42
43 namespace WebCore { 43 namespace blink {
44 44
45 const double RealtimeAnalyser::DefaultSmoothingTimeConstant = 0.8; 45 const double RealtimeAnalyser::DefaultSmoothingTimeConstant = 0.8;
46 const double RealtimeAnalyser::DefaultMinDecibels = -100; 46 const double RealtimeAnalyser::DefaultMinDecibels = -100;
47 const double RealtimeAnalyser::DefaultMaxDecibels = -30; 47 const double RealtimeAnalyser::DefaultMaxDecibels = -30;
48 48
49 const unsigned RealtimeAnalyser::DefaultFFTSize = 2048; 49 const unsigned RealtimeAnalyser::DefaultFFTSize = 2048;
50 // All FFT implementations are expected to handle power-of-two sizes MinFFTSize <= size <= MaxFFTSize. 50 // All FFT implementations are expected to handle power-of-two sizes MinFFTSize <= size <= MaxFFTSize.
51 const unsigned RealtimeAnalyser::MinFFTSize = 32; 51 const unsigned RealtimeAnalyser::MinFFTSize = 32;
52 const unsigned RealtimeAnalyser::MaxFFTSize = 2048; 52 const unsigned RealtimeAnalyser::MaxFFTSize = 2048;
53 const unsigned RealtimeAnalyser::InputBufferSize = RealtimeAnalyser::MaxFFTSize * 2; 53 const unsigned RealtimeAnalyser::InputBufferSize = RealtimeAnalyser::MaxFFTSize * 2;
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314 if (scaledValue < 0) 314 if (scaledValue < 0)
315 scaledValue = 0; 315 scaledValue = 0;
316 if (scaledValue > UCHAR_MAX) 316 if (scaledValue > UCHAR_MAX)
317 scaledValue = UCHAR_MAX; 317 scaledValue = UCHAR_MAX;
318 318
319 destination[i] = static_cast<unsigned char>(scaledValue); 319 destination[i] = static_cast<unsigned char>(scaledValue);
320 } 320 }
321 } 321 }
322 } 322 }
323 323
324 } // namespace WebCore 324 } // namespace blink
325 325
326 #endif // ENABLE(WEB_AUDIO) 326 #endif // ENABLE(WEB_AUDIO)
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