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1 /* | 1 /* |
2 * Copyright (c) 2014 The WebRTC project authors. All Rights Reserved. | 2 * Copyright (c) 2014 The WebRTC project authors. All Rights Reserved. |
3 * | 3 * |
4 * Use of this source code is governed by a BSD-style license | 4 * Use of this source code is governed by a BSD-style license |
5 * that can be found in the LICENSE file in the root of the source | 5 * that can be found in the LICENSE file in the root of the source |
6 * tree. An additional intellectual property rights grant can be found | 6 * tree. An additional intellectual property rights grant can be found |
7 * in the file PATENTS. All contributing project authors may | 7 * in the file PATENTS. All contributing project authors may |
8 * be found in the AUTHORS file in the root of the source tree. | 8 * be found in the AUTHORS file in the root of the source tree. |
9 */ | 9 */ |
10 | 10 |
11 #ifndef WEBRTC_COMMON_AUDIO_REAL_FOURIER_H_ | 11 #ifndef WEBRTC_COMMON_AUDIO_REAL_FOURIER_H_ |
12 #define WEBRTC_COMMON_AUDIO_REAL_FOURIER_H_ | 12 #define WEBRTC_COMMON_AUDIO_REAL_FOURIER_H_ |
13 | 13 |
14 #include <complex> | 14 #include <complex> |
15 #include <memory> | 15 #include <memory> |
16 | 16 |
17 #include "webrtc/base/scoped_ptr.h" | |
18 #include "webrtc/system_wrappers/include/aligned_malloc.h" | 17 #include "webrtc/system_wrappers/include/aligned_malloc.h" |
19 | 18 |
20 // Uniform interface class for the real DFT and its inverse, for power-of-2 | 19 // Uniform interface class for the real DFT and its inverse, for power-of-2 |
21 // input lengths. Also contains helper functions for buffer allocation, taking | 20 // input lengths. Also contains helper functions for buffer allocation, taking |
22 // care of any memory alignment requirements the underlying library might have. | 21 // care of any memory alignment requirements the underlying library might have. |
23 | 22 |
24 namespace webrtc { | 23 namespace webrtc { |
25 | 24 |
26 class RealFourier { | 25 class RealFourier { |
27 public: | 26 public: |
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67 // not needed. | 66 // not needed. |
68 virtual void Inverse(const std::complex<float>* src, float* dest) const = 0; | 67 virtual void Inverse(const std::complex<float>* src, float* dest) const = 0; |
69 | 68 |
70 virtual int order() const = 0; | 69 virtual int order() const = 0; |
71 }; | 70 }; |
72 | 71 |
73 } // namespace webrtc | 72 } // namespace webrtc |
74 | 73 |
75 #endif // WEBRTC_COMMON_AUDIO_REAL_FOURIER_H_ | 74 #endif // WEBRTC_COMMON_AUDIO_REAL_FOURIER_H_ |
76 | 75 |
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