webrtc/modules/audio_processing/aec3/moving_average.h
Yves Gerey 988cc0870b [Cleanup] Add missing #include. Remove useless ones.
This CL is the result of running include-what-you-use tool on part
of the code base (audio target and dependencies) plus manual fixes.

bug: webrtc:8311
Change-Id: I277d281ce943c3ecc1bd45fd8d83055931743604
Reviewed-on: https://webrtc-review.googlesource.com/c/106280
Commit-Queue: Yves Gerey <yvesg@google.com>
Reviewed-by: Mirko Bonadei <mbonadei@webrtc.org>
Reviewed-by: Patrik Höglund <phoglund@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#25311}
2018-10-23 11:32:56 +00:00

44 lines
1.3 KiB
C++

/*
* Copyright (c) 2018 The WebRTC project authors. All Rights Reserved.
*
* Use of this source code is governed by a BSD-style license
* that can be found in the LICENSE file in the root of the source
* tree. An additional intellectual property rights grant can be found
* in the file PATENTS. All contributing project authors may
* be found in the AUTHORS file in the root of the source tree.
*/
#ifndef MODULES_AUDIO_PROCESSING_AEC3_MOVING_AVERAGE_H_
#define MODULES_AUDIO_PROCESSING_AEC3_MOVING_AVERAGE_H_
#include <stddef.h>
#include <vector>
#include "api/array_view.h"
namespace webrtc {
namespace aec3 {
class MovingAverage {
public:
// Creates an instance of MovingAverage that accepts inputs of length num_elem
// and averages over mem_len inputs.
MovingAverage(size_t num_elem, size_t mem_len);
~MovingAverage();
// Computes the average of input and mem_len-1 previous inputs and stores the
// result in output.
void Average(rtc::ArrayView<const float> input, rtc::ArrayView<float> output);
private:
const size_t num_elem_;
const size_t mem_len_;
const float scaling_;
std::vector<float> memory_;
size_t mem_index_;
};
} // namespace aec3
} // namespace webrtc
#endif // MODULES_AUDIO_PROCESSING_AEC3_MOVING_AVERAGE_H_