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Side by Side Diff: Source/platform/audio/AudioResamplerKernel.h

Issue 400543004: Rename WebCore namespace to blink in Platform (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
(...skipping 10 matching lines...) Expand all
21 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS 21 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
22 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 22 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
23 */ 23 */
24 24
25 #ifndef AudioResamplerKernel_h 25 #ifndef AudioResamplerKernel_h
26 #define AudioResamplerKernel_h 26 #define AudioResamplerKernel_h
27 27
28 #include "platform/PlatformExport.h" 28 #include "platform/PlatformExport.h"
29 #include "platform/audio/AudioArray.h" 29 #include "platform/audio/AudioArray.h"
30 30
31 namespace WebCore { 31 namespace blink {
32 32
33 class AudioResampler; 33 class AudioResampler;
34 34
35 // AudioResamplerKernel does resampling on a single mono channel. 35 // AudioResamplerKernel does resampling on a single mono channel.
36 // It uses a simple linear interpolation for good performance. 36 // It uses a simple linear interpolation for good performance.
37 37
38 class PLATFORM_EXPORT AudioResamplerKernel { 38 class PLATFORM_EXPORT AudioResamplerKernel {
39 public: 39 public:
40 AudioResamplerKernel(AudioResampler*); 40 AudioResamplerKernel(AudioResampler*);
41 41
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65 double m_virtualReadIndex; 65 double m_virtualReadIndex;
66 66
67 // We need to have continuity from one call of process() to the next. 67 // We need to have continuity from one call of process() to the next.
68 // m_lastValues stores the last two sample values from the last call to proc ess(). 68 // m_lastValues stores the last two sample values from the last call to proc ess().
69 // m_fillIndex represents how many buffered samples we have which can be as many as 2. 69 // m_fillIndex represents how many buffered samples we have which can be as many as 2.
70 // For the first call to process() (or after reset()) there will be no buffe red samples. 70 // For the first call to process() (or after reset()) there will be no buffe red samples.
71 float m_lastValues[2]; 71 float m_lastValues[2];
72 unsigned m_fillIndex; 72 unsigned m_fillIndex;
73 }; 73 };
74 74
75 } // namespace WebCore 75 } // namespace blink
76 76
77 #endif // AudioResamplerKernel_h 77 #endif // AudioResamplerKernel_h
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