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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}
65 lines
2.3 KiB
C++
65 lines
2.3 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 <vector>
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#include "absl/types/optional.h"
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#include "api/audio/echo_canceller3_config.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/downsampled_render_buffer.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/constructormagic.h"
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namespace webrtc {
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class ApmDataDumper;
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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 soft-reset is specified, only the matched
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// filters are reset.
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void Reset(bool soft_reset);
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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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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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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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