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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 #ifndef AudioResampler_h | 25 #ifndef AudioResampler_h |
| 26 #define AudioResampler_h | 26 #define AudioResampler_h |
| 27 | 27 |
| 28 #include "AudioBus.h" | 28 #include "core/platform/audio/AudioBus.h" |
| 29 #include "AudioResamplerKernel.h" | 29 #include "core/platform/audio/AudioResamplerKernel.h" |
| 30 #include "AudioSourceProvider.h" | 30 #include "core/platform/audio/AudioSourceProvider.h" |
| 31 #include <wtf/OwnPtr.h> | 31 #include <wtf/OwnPtr.h> |
| 32 #include <wtf/Vector.h> | 32 #include <wtf/Vector.h> |
| 33 | 33 |
| 34 namespace WebCore { | 34 namespace WebCore { |
| 35 | 35 |
| 36 // AudioResampler resamples the audio stream from an AudioSourceProvider. | 36 // AudioResampler resamples the audio stream from an AudioSourceProvider. |
| 37 // The audio stream may be single or multi-channel. | 37 // The audio stream may be single or multi-channel. |
| 38 // The default constructor defaults to single-channel (mono). | 38 // The default constructor defaults to single-channel (mono). |
| 39 | 39 |
| 40 class AudioResampler { | 40 class AudioResampler { |
| (...skipping 18 matching lines...) Expand all Loading... |
| 59 | 59 |
| 60 private: | 60 private: |
| 61 double m_rate; | 61 double m_rate; |
| 62 Vector<OwnPtr<AudioResamplerKernel> > m_kernels; | 62 Vector<OwnPtr<AudioResamplerKernel> > m_kernels; |
| 63 RefPtr<AudioBus> m_sourceBus; | 63 RefPtr<AudioBus> m_sourceBus; |
| 64 }; | 64 }; |
| 65 | 65 |
| 66 } // namespace WebCore | 66 } // namespace WebCore |
| 67 | 67 |
| 68 #endif // AudioResampler_h | 68 #endif // AudioResampler_h |
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