69221db534
This CL adds code to the BlockProcessor, which basically constitutes the second layer in echo canceller 3. The CL includes two incomplete classes (EchoRemover and EchoPathDelayEstimator) which will be completed in upcoming CLs. Because of this, some of the unittests are disabled until those are added. BUG=webrtc:6018 Review-Url: https://codereview.webrtc.org/2611223003 Cr-Commit-Position: refs/heads/master@{#16319}
45 lines
1.5 KiB
C++
45 lines
1.5 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 WEBRTC_MODULES_AUDIO_PROCESSING_AEC3_ECHO_REMOVER_H_
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#define WEBRTC_MODULES_AUDIO_PROCESSING_AEC3_ECHO_REMOVER_H_
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#include <vector>
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#include "webrtc/base/optional.h"
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#include "webrtc/modules/audio_processing/aec3/echo_path_variability.h"
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namespace webrtc {
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// Class for removing the echo from the capture signal.
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class EchoRemover {
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public:
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static EchoRemover* Create(int sample_rate_hz);
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virtual ~EchoRemover() = default;
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// Removes the echo from a block of samples from the capture signal. The
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// supplied render signal is assumed to be pre-aligned with the capture
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// signal.
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virtual void ProcessBlock(
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const rtc::Optional<size_t>& echo_path_delay_samples,
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const EchoPathVariability& echo_path_variability,
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bool capture_signal_saturation,
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const std::vector<std::vector<float>>& render,
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std::vector<std::vector<float>>* capture) = 0;
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// Updates the status on whether echo leakage is detected in the output of the
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// echo remover.
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virtual void UpdateEchoLeakageStatus(bool leakage_detected) = 0;
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};
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} // namespace webrtc
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#endif // WEBRTC_MODULES_AUDIO_PROCESSING_AEC3_ECHO_REMOVER_H_
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