45 lines
1.5 KiB
C
45 lines
1.5 KiB
C
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/*
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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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