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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 |
| 11 * documentation and/or other materials provided with the distribution. | 11 * documentation and/or other materials provided with the distribution. |
| 12 * | 12 * |
| 13 * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' AND AN
Y | 13 * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' AND AN
Y |
| 14 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED | 14 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED |
| 15 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE | 15 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE |
| 16 * DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS BE LIABLE FOR AN
Y | 16 * DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS BE LIABLE FOR AN
Y |
| 17 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES | 17 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES |
| 18 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; | 18 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; |
| 19 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND O
N | 19 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND O
N |
| 20 * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | 20 * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| 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 #include "config.h" | 25 #include "config.h" |
| 26 | 26 |
| 27 #if ENABLE(WEB_AUDIO) | 27 #if ENABLE(WEB_AUDIO) |
| 28 | 28 |
| 29 #include "AudioResampler.h" | 29 #include "core/platform/audio/AudioResampler.h" |
| 30 | 30 |
| 31 #include "AudioBus.h" | |
| 32 #include <algorithm> | 31 #include <algorithm> |
| 32 #include "core/platform/audio/AudioBus.h" |
| 33 #include <wtf/MathExtras.h> | 33 #include <wtf/MathExtras.h> |
| 34 | 34 |
| 35 using namespace std; | 35 using namespace std; |
| 36 | 36 |
| 37 namespace WebCore { | 37 namespace WebCore { |
| 38 | 38 |
| 39 const double AudioResampler::MaxRate = 8.0; | 39 const double AudioResampler::MaxRate = 8.0; |
| 40 | 40 |
| 41 AudioResampler::AudioResampler() | 41 AudioResampler::AudioResampler() |
| 42 : m_rate(1.0) | 42 : m_rate(1.0) |
| (...skipping 76 matching lines...) Expand 10 before | Expand all | Expand 10 after Loading... |
| 119 void AudioResampler::reset() | 119 void AudioResampler::reset() |
| 120 { | 120 { |
| 121 unsigned numberOfChannels = m_kernels.size(); | 121 unsigned numberOfChannels = m_kernels.size(); |
| 122 for (unsigned i = 0; i < numberOfChannels; ++i) | 122 for (unsigned i = 0; i < numberOfChannels; ++i) |
| 123 m_kernels[i]->reset(); | 123 m_kernels[i]->reset(); |
| 124 } | 124 } |
| 125 | 125 |
| 126 } // namespace WebCore | 126 } // namespace WebCore |
| 127 | 127 |
| 128 #endif // ENABLE(WEB_AUDIO) | 128 #endif // ENABLE(WEB_AUDIO) |
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