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10542f21c8
Mechanically generated by running this command: tools_webrtc/do-renames.sh update all-renames.txt && git cl format Then manually updating: tools_webrtc/sanitizers/tsan_suppressions_webrtc.cc Bug: webrtc:10159 No-Presubmit: true No-Tree-Checks: true No-Try: true Change-Id: I54824cd91dada8fc3ee3d098f971bc319d477833 Reviewed-on: https://webrtc-review.googlesource.com/c/115653 Reviewed-by: Karl Wiberg <kwiberg@webrtc.org> Cr-Commit-Position: refs/heads/master@{#26226}
76 lines
2.7 KiB
C++
76 lines
2.7 KiB
C++
/*
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* Copyright (c) 2017 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_ECHO_PATH_DELAY_ESTIMATOR_H_
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#define MODULES_AUDIO_PROCESSING_AEC3_ECHO_PATH_DELAY_ESTIMATOR_H_
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#include <stddef.h>
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#include "absl/types/optional.h"
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#include "api/array_view.h"
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#include "modules/audio_processing/aec3/clockdrift_detector.h"
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#include "modules/audio_processing/aec3/decimator.h"
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#include "modules/audio_processing/aec3/delay_estimate.h"
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#include "modules/audio_processing/aec3/matched_filter.h"
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#include "modules/audio_processing/aec3/matched_filter_lag_aggregator.h"
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#include "rtc_base/constructor_magic.h"
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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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// Estimates the delay of the echo path.
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class EchoPathDelayEstimator {
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public:
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EchoPathDelayEstimator(ApmDataDumper* data_dumper,
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const EchoCanceller3Config& config);
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~EchoPathDelayEstimator();
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// Resets the estimation. If the delay confidence is reset, the reset behavior
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// is as if the call is restarted.
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void Reset(bool reset_delay_confidence);
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// Produce a delay estimate if such is avaliable.
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absl::optional<DelayEstimate> EstimateDelay(
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const DownsampledRenderBuffer& render_buffer,
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rtc::ArrayView<const float> capture);
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// Log delay estimator properties.
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void LogDelayEstimationProperties(int sample_rate_hz, size_t shift) const {
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matched_filter_.LogFilterProperties(sample_rate_hz, shift,
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down_sampling_factor_);
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}
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// Returns the level of detected clockdrift.
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ClockdriftDetector::Level Clockdrift() const {
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return clockdrift_detector_.ClockdriftLevel();
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}
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private:
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ApmDataDumper* const data_dumper_;
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const size_t down_sampling_factor_;
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const size_t sub_block_size_;
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Decimator capture_decimator_;
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MatchedFilter matched_filter_;
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MatchedFilterLagAggregator matched_filter_lag_aggregator_;
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absl::optional<DelayEstimate> old_aggregated_lag_;
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size_t consistent_estimate_counter_ = 0;
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ClockdriftDetector clockdrift_detector_;
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// Internal reset method with more granularity.
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void Reset(bool reset_lag_aggregator, bool reset_delay_confidence);
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RTC_DISALLOW_COPY_AND_ASSIGN(EchoPathDelayEstimator);
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};
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} // namespace webrtc
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#endif // MODULES_AUDIO_PROCESSING_AEC3_ECHO_PATH_DELAY_ESTIMATOR_H_
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