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0b489303d2
Bug: webrtc:12338 Change-Id: I85bff694dd2ead83c939c4d1945eff82e1296001 No-Presubmit: True Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/227161 Commit-Queue: Artem Titov <titovartem@webrtc.org> Reviewed-by: Harald Alvestrand <hta@webrtc.org> Cr-Commit-Position: refs/heads/master@{#34690}
45 lines
1.4 KiB
C++
45 lines
1.4 KiB
C++
/*
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* Copyright (c) 2013 The WebRTC project authors. All Rights Reserved.
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*
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* Use of this source code is governed by a BSD-style license
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* that can be found in the LICENSE file in the root of the source
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* tree. An additional intellectual property rights grant can be found
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* in the file PATENTS. All contributing project authors may
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* be found in the AUTHORS file in the root of the source tree.
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*/
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#ifndef MODULES_AUDIO_PROCESSING_TRANSIENT_WPD_NODE_H_
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#define MODULES_AUDIO_PROCESSING_TRANSIENT_WPD_NODE_H_
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#include <memory>
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namespace webrtc {
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class FIRFilter;
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// A single node of a Wavelet Packet Decomposition (WPD) tree.
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class WPDNode {
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public:
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// Creates a WPDNode. The data vector will contain zeros. The filter will have
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// the coefficients provided.
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WPDNode(size_t length, const float* coefficients, size_t coefficients_length);
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~WPDNode();
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// Updates the node data. `parent_data` / 2 must be equals to `length_`.
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// Returns 0 if correct, and -1 otherwise.
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int Update(const float* parent_data, size_t parent_data_length);
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const float* data() const { return data_.get(); }
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// Returns 0 if correct, and -1 otherwise.
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int set_data(const float* new_data, size_t length);
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size_t length() const { return length_; }
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private:
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std::unique_ptr<float[]> data_;
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size_t length_;
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std::unique_ptr<FIRFilter> filter_;
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};
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} // namespace webrtc
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#endif // MODULES_AUDIO_PROCESSING_TRANSIENT_WPD_NODE_H_
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