1 /* 2 * Copyright (c) 2017 The WebRTC project authors. All Rights Reserved. 3 * 4 * Use of this source code is governed by a BSD-style license 5 * that can be found in the LICENSE file in the root of the source 6 * tree. An additional intellectual property rights grant can be found 7 * in the file PATENTS. All contributing project authors may 8 * be found in the AUTHORS file in the root of the source tree. 9 */ 10 11 #ifndef MODULES_AUDIO_PROCESSING_AEC3_OUTPUT_SELECTOR_H_ 12 #define MODULES_AUDIO_PROCESSING_AEC3_OUTPUT_SELECTOR_H_ 13 14 #include "api/array_view.h" 15 #include "rtc_base/constructormagic.h" 16 17 namespace webrtc { 18 19 // Performs the selection between which of the linear aec output and the 20 // microphone signal should be used as the echo suppressor output. 21 class OutputSelector { 22 public: 23 OutputSelector(); 24 ~OutputSelector(); 25 26 // Forms the most appropriate output signal. 27 void FormLinearOutput(bool use_subtractor_output, 28 rtc::ArrayView<const float> subtractor_output, 29 rtc::ArrayView<float> capture); 30 31 // Returns true if the linear aec output is the one used. UseSubtractorOutput()32 bool UseSubtractorOutput() const { return use_subtractor_output_; } 33 34 private: 35 bool use_subtractor_output_ = false; 36 RTC_DISALLOW_COPY_AND_ASSIGN(OutputSelector); 37 }; 38 39 } // namespace webrtc 40 41 #endif // MODULES_AUDIO_PROCESSING_AEC3_OUTPUT_SELECTOR_H_ 42