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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 | 13 * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' AND |
14 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | 14 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE | 15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
16 * ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS BE LIABLE | 16 * ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS BE LIABLE |
17 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL | 17 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
18 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR | 18 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR |
19 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER | 19 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER |
20 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT | 20 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
21 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY | 21 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
22 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH | 22 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH |
23 * DAMAGE. | 23 * DAMAGE. |
24 */ | 24 */ |
25 | 25 |
26 #ifndef AudioResampler_h | 26 #ifndef AudioResampler_h |
27 #define AudioResampler_h | 27 #define AudioResampler_h |
28 | 28 |
| 29 #include <memory> |
29 #include "platform/audio/AudioBus.h" | 30 #include "platform/audio/AudioBus.h" |
30 #include "platform/audio/AudioResamplerKernel.h" | 31 #include "platform/audio/AudioResamplerKernel.h" |
31 #include "platform/audio/AudioSourceProvider.h" | 32 #include "platform/audio/AudioSourceProvider.h" |
32 #include "wtf/Allocator.h" | 33 #include "wtf/Allocator.h" |
33 #include "wtf/Noncopyable.h" | 34 #include "wtf/Noncopyable.h" |
34 #include "wtf/Vector.h" | 35 #include "wtf/Vector.h" |
35 #include <memory> | |
36 | 36 |
37 namespace blink { | 37 namespace blink { |
38 | 38 |
39 // AudioResampler resamples the audio stream from an AudioSourceProvider. | 39 // AudioResampler resamples the audio stream from an AudioSourceProvider. |
40 // The audio stream may be single or multi-channel. | 40 // The audio stream may be single or multi-channel. |
41 // The default constructor defaults to single-channel (mono). | 41 // The default constructor defaults to single-channel (mono). |
42 | 42 |
43 class PLATFORM_EXPORT AudioResampler { | 43 class PLATFORM_EXPORT AudioResampler { |
44 DISALLOW_NEW(); | 44 DISALLOW_NEW(); |
45 WTF_MAKE_NONCOPYABLE(AudioResampler); | 45 WTF_MAKE_NONCOPYABLE(AudioResampler); |
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68 | 68 |
69 private: | 69 private: |
70 double m_rate; | 70 double m_rate; |
71 Vector<std::unique_ptr<AudioResamplerKernel>> m_kernels; | 71 Vector<std::unique_ptr<AudioResamplerKernel>> m_kernels; |
72 RefPtr<AudioBus> m_sourceBus; | 72 RefPtr<AudioBus> m_sourceBus; |
73 }; | 73 }; |
74 | 74 |
75 } // namespace blink | 75 } // namespace blink |
76 | 76 |
77 #endif // AudioResampler_h | 77 #endif // AudioResampler_h |
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