86afe9d661
This CL adds fairly significant changes to the echo removal functionality, the main ones being. -More centralized control over the echo removal. -Updated echo suppression gain behavior. -Significantly increased usage of the linear adaptive filter. -New echo removal functionality when the linear filter is not usable. This CL is chained to the CL https://codereview.webrtc.org/2784023002/ BUG=webrtc:6018 Review-Url: https://codereview.webrtc.org/2782423003 Cr-Commit-Position: refs/heads/master@{#17575}
42 lines
1.4 KiB
C++
42 lines
1.4 KiB
C++
/*
|
|
* Copyright (c) 2017 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 WEBRTC_MODULES_AUDIO_PROCESSING_AEC3_OUTPUT_SELECTOR_H_
|
|
#define WEBRTC_MODULES_AUDIO_PROCESSING_AEC3_OUTPUT_SELECTOR_H_
|
|
|
|
#include "webrtc/base/array_view.h"
|
|
#include "webrtc/base/constructormagic.h"
|
|
|
|
namespace webrtc {
|
|
|
|
// Performs the selection between which of the linear aec output and the
|
|
// microphone signal should be used as the echo suppressor output.
|
|
class OutputSelector {
|
|
public:
|
|
OutputSelector();
|
|
~OutputSelector();
|
|
|
|
// Forms the most appropriate output signal.
|
|
void FormLinearOutput(bool use_subtractor_output,
|
|
rtc::ArrayView<const float> subtractor_output,
|
|
rtc::ArrayView<float> capture);
|
|
|
|
// Returns true if the linear aec output is the one used.
|
|
bool UseSubtractorOutput() const { return use_subtractor_output_; }
|
|
|
|
private:
|
|
bool use_subtractor_output_ = false;
|
|
RTC_DISALLOW_COPY_AND_ASSIGN(OutputSelector);
|
|
};
|
|
|
|
} // namespace webrtc
|
|
|
|
#endif // WEBRTC_MODULES_AUDIO_PROCESSING_AEC3_OUTPUT_SELECTOR_H_
|