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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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22 WPDNode::WPDNode(size_t length, | 22 WPDNode::WPDNode(size_t length, |
23 const float* coefficients, | 23 const float* coefficients, |
24 size_t coefficients_length) | 24 size_t coefficients_length) |
25 : // The data buffer has parent data length to be able to contain and filter | 25 : // The data buffer has parent data length to be able to contain and filter |
26 // it. | 26 // it. |
27 data_(new float[2 * length + 1]), | 27 data_(new float[2 * length + 1]), |
28 length_(length), | 28 length_(length), |
29 filter_(FIRFilter::Create(coefficients, | 29 filter_(FIRFilter::Create(coefficients, |
30 coefficients_length, | 30 coefficients_length, |
31 2 * length + 1)) { | 31 2 * length + 1)) { |
32 RTC_DCHECK_GT(length, 0u); | 32 RTC_DCHECK_GT(length, 0); |
33 RTC_DCHECK(coefficients); | 33 RTC_DCHECK(coefficients); |
34 RTC_DCHECK_GT(coefficients_length, 0u); | 34 RTC_DCHECK_GT(coefficients_length, 0); |
35 memset(data_.get(), 0.f, (2 * length + 1) * sizeof(data_[0])); | 35 memset(data_.get(), 0.f, (2 * length + 1) * sizeof(data_[0])); |
36 } | 36 } |
37 | 37 |
38 WPDNode::~WPDNode() {} | 38 WPDNode::~WPDNode() {} |
39 | 39 |
40 int WPDNode::Update(const float* parent_data, size_t parent_data_length) { | 40 int WPDNode::Update(const float* parent_data, size_t parent_data_length) { |
41 if (!parent_data || (parent_data_length / 2) != length_) { | 41 if (!parent_data || (parent_data_length / 2) != length_) { |
42 return -1; | 42 return -1; |
43 } | 43 } |
44 | 44 |
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63 | 63 |
64 int WPDNode::set_data(const float* new_data, size_t length) { | 64 int WPDNode::set_data(const float* new_data, size_t length) { |
65 if (!new_data || length != length_) { | 65 if (!new_data || length != length_) { |
66 return -1; | 66 return -1; |
67 } | 67 } |
68 memcpy(data_.get(), new_data, length * sizeof(data_[0])); | 68 memcpy(data_.get(), new_data, length * sizeof(data_[0])); |
69 return 0; | 69 return 0; |
70 } | 70 } |
71 | 71 |
72 } // namespace webrtc | 72 } // namespace webrtc |
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