41 lines
1.1 KiB
C
41 lines
1.1 KiB
C
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/*
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* Copyright (c) 2018 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_AEC3_CLOCKDRIFT_DETECTOR_H_
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#define MODULES_AUDIO_PROCESSING_AEC3_CLOCKDRIFT_DETECTOR_H_
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#include <stddef.h>
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#include <array>
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namespace webrtc {
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class ApmDataDumper;
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struct DownsampledRenderBuffer;
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struct EchoCanceller3Config;
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// Detects clockdrift by analyzing the estimated delay.
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class ClockdriftDetector {
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public:
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enum class Level { kNone, kProbable, kVerified, kNumCategories };
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ClockdriftDetector();
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~ClockdriftDetector();
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void Update(int delay_estimate);
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Level ClockdriftLevel() const { return level_; }
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private:
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std::array<int, 3> delay_history_;
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Level level_;
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size_t stability_counter_;
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};
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} // namespace webrtc
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#endif // MODULES_AUDIO_PROCESSING_AEC3_CLOCKDRIFT_DETECTOR_H_
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