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