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Side by Side Diff: webrtc/common_audio/resampler/sinc_resampler.cc

Issue 1413333002: system_wrappers: rename interface -> include (Closed) Base URL: https://chromium.googlesource.com/external/webrtc.git@master
Patch Set: Rebased again! Created 5 years, 1 month ago
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1 /* 1 /*
2 * Copyright (c) 2013 The WebRTC project authors. All Rights Reserved. 2 * Copyright (c) 2013 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
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86 #define _USE_MATH_DEFINES 86 #define _USE_MATH_DEFINES
87 87
88 #include "webrtc/common_audio/resampler/sinc_resampler.h" 88 #include "webrtc/common_audio/resampler/sinc_resampler.h"
89 89
90 #include <assert.h> 90 #include <assert.h>
91 #include <math.h> 91 #include <math.h>
92 #include <string.h> 92 #include <string.h>
93 93
94 #include <limits> 94 #include <limits>
95 95
96 #include "webrtc/system_wrappers/interface/cpu_features_wrapper.h" 96 #include "webrtc/system_wrappers/include/cpu_features_wrapper.h"
97 #include "webrtc/typedefs.h" 97 #include "webrtc/typedefs.h"
98 98
99 namespace webrtc { 99 namespace webrtc {
100 100
101 namespace { 101 namespace {
102 102
103 double SincScaleFactor(double io_ratio) { 103 double SincScaleFactor(double io_ratio) {
104 // |sinc_scale_factor| is basically the normalized cutoff frequency of the 104 // |sinc_scale_factor| is basically the normalized cutoff frequency of the
105 // low-pass filter. 105 // low-pass filter.
106 double sinc_scale_factor = io_ratio > 1.0 ? 1.0 / io_ratio : 1.0; 106 double sinc_scale_factor = io_ratio > 1.0 ? 1.0 / io_ratio : 1.0;
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369 sum1 += *input_ptr * *k1++; 369 sum1 += *input_ptr * *k1++;
370 sum2 += *input_ptr++ * *k2++; 370 sum2 += *input_ptr++ * *k2++;
371 } 371 }
372 372
373 // Linearly interpolate the two "convolutions". 373 // Linearly interpolate the two "convolutions".
374 return static_cast<float>((1.0 - kernel_interpolation_factor) * sum1 + 374 return static_cast<float>((1.0 - kernel_interpolation_factor) * sum1 +
375 kernel_interpolation_factor * sum2); 375 kernel_interpolation_factor * sum2);
376 } 376 }
377 377
378 } // namespace webrtc 378 } // namespace webrtc
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