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_ECHO_PATH_VARIABILITY_H_ 12 #define MODULES_AUDIO_PROCESSING_AEC3_ECHO_PATH_VARIABILITY_H_ 13 14 namespace webrtc { 15 16 struct EchoPathVariability { 17 enum class DelayAdjustment { 18 kNone, 19 kBufferReadjustment, 20 kBufferFlush, 21 kDelayReset, 22 kNewDetectedDelay 23 }; 24 25 EchoPathVariability(bool gain_change, 26 DelayAdjustment delay_change, 27 bool clock_drift); 28 AudioPathChangedEchoPathVariability29 bool AudioPathChanged() const { 30 return gain_change || delay_change != DelayAdjustment::kNone; 31 } 32 bool gain_change; 33 DelayAdjustment delay_change; 34 bool clock_drift; 35 }; 36 37 } // namespace webrtc 38 39 #endif // MODULES_AUDIO_PROCESSING_AEC3_ECHO_PATH_VARIABILITY_H_ 40