bcec8b0b21
This is from the upstream library commit id 3326535126e435f1ba647885ce43a8f0f3d317eb, corresponding to Chromium 88.0.4290.1.
45 lines
1.3 KiB
C++
45 lines
1.3 KiB
C++
/*
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* Copyright (c) 2016 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_ECHO_DETECTOR_CIRCULAR_BUFFER_H_
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#define MODULES_AUDIO_PROCESSING_ECHO_DETECTOR_CIRCULAR_BUFFER_H_
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#include <stddef.h>
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#include <vector>
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#include "absl/types/optional.h"
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namespace webrtc {
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// Ring buffer containing floating point values.
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struct CircularBuffer {
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public:
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explicit CircularBuffer(size_t size);
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~CircularBuffer();
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void Push(float value);
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absl::optional<float> Pop();
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size_t Size() const { return nr_elements_in_buffer_; }
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// This function fills the buffer with zeros, but does not change its size.
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void Clear();
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private:
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std::vector<float> buffer_;
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size_t next_insertion_index_ = 0;
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// This is the number of elements that have been pushed into the circular
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// buffer, not the allocated buffer size.
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size_t nr_elements_in_buffer_ = 0;
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};
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} // namespace webrtc
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#endif // MODULES_AUDIO_PROCESSING_ECHO_DETECTOR_CIRCULAR_BUFFER_H_
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