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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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44 | 44 |
45 public: | 45 public: |
46 MultiChannelResampler(double scaleFactor, unsigned numberOfChannels); | 46 MultiChannelResampler(double scaleFactor, unsigned numberOfChannels); |
47 | 47 |
48 // Process given AudioSourceProvider for streaming applications. | 48 // Process given AudioSourceProvider for streaming applications. |
49 void process(AudioSourceProvider*, | 49 void process(AudioSourceProvider*, |
50 AudioBus* destination, | 50 AudioBus* destination, |
51 size_t framesToProcess); | 51 size_t framesToProcess); |
52 | 52 |
53 private: | 53 private: |
54 // FIXME: the mac port can have a more highly optimized implementation based o
n CoreAudio | 54 // FIXME: the mac port can have a more highly optimized implementation based |
55 // instead of SincResampler. For now the default implementation will be used o
n all ports. | 55 // on CoreAudio instead of SincResampler. For now the default implementation |
| 56 // will be used on all ports. |
56 // https://bugs.webkit.org/show_bug.cgi?id=75118 | 57 // https://bugs.webkit.org/show_bug.cgi?id=75118 |
57 | 58 |
58 // Each channel will be resampled using a high-quality SincResampler. | 59 // Each channel will be resampled using a high-quality SincResampler. |
59 Vector<std::unique_ptr<SincResampler>> m_kernels; | 60 Vector<std::unique_ptr<SincResampler>> m_kernels; |
60 | 61 |
61 unsigned m_numberOfChannels; | 62 unsigned m_numberOfChannels; |
62 }; | 63 }; |
63 | 64 |
64 } // namespace blink | 65 } // namespace blink |
65 | 66 |
66 #endif // MultiChannelResampler_h | 67 #endif // MultiChannelResampler_h |
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