mirror of
https://github.com/mollyim/webrtc.git
synced 2025-05-16 15:20:42 +01:00
db9f7ab9f9
This is a no-op change because rtc::Optional is an alias to absl::optional
This CL generated by running script with parameter 'modules/audio_processing'
find $@ -type f \( -name \*.h -o -name \*.cc \) \
-exec sed -i 's|rtc::Optional|absl::optional|g' {} \+ \
-exec sed -i 's|rtc::nullopt|absl::nullopt|g' {} \+ \
-exec sed -i 's|#include "api/optional.h"|#include "absl/types/optional.h"|' {} \+
find $@ -type f -name BUILD.gn \
-exec sed -r -i 's|"(../)*api:optional"|"//third_party/abseil-cpp/absl/types:optional"|' {} \+;
git cl format
Bug: webrtc:9078
Change-Id: Id29f8de59dba704787c2c38a3d05c60827c181b0
Reviewed-on: https://webrtc-review.googlesource.com/83982
Commit-Queue: Danil Chapovalov <danilchap@webrtc.org>
Reviewed-by: Sam Zackrisson <saza@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#23653}
50 lines
1.4 KiB
C++
50 lines
1.4 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_SKEW_ESTIMATOR_H_
|
|
#define MODULES_AUDIO_PROCESSING_AEC3_SKEW_ESTIMATOR_H_
|
|
|
|
#include <vector>
|
|
|
|
#include "absl/types/optional.h"
|
|
#include "rtc_base/constructormagic.h"
|
|
|
|
namespace webrtc {
|
|
|
|
// Estimator of API call skew between render and capture.
|
|
class SkewEstimator {
|
|
public:
|
|
explicit SkewEstimator(size_t skew_history_size_log2);
|
|
~SkewEstimator();
|
|
|
|
// Resets the estimation.
|
|
void Reset();
|
|
|
|
// Updates the skew data for a render call.
|
|
void LogRenderCall() { ++skew_; }
|
|
|
|
// Updates and computes the skew at a capture call. Returns an optional which
|
|
// is non-null if a reliable skew has been found.
|
|
absl::optional<int> GetSkewFromCapture();
|
|
|
|
private:
|
|
const int skew_history_size_log2_;
|
|
std::vector<float> skew_history_;
|
|
int skew_ = 0;
|
|
int skew_sum_ = 0;
|
|
size_t next_index_ = 0;
|
|
bool sufficient_skew_stored_ = false;
|
|
|
|
RTC_DISALLOW_COPY_AND_ASSIGN(SkewEstimator);
|
|
};
|
|
|
|
} // namespace webrtc
|
|
|
|
#endif // MODULES_AUDIO_PROCESSING_AEC3_SKEW_ESTIMATOR_H_
|