|  | /* | 
|  | *  Copyright (c) 2018 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 API_AUDIO_ECHO_CANCELLER3_FACTORY_H_ | 
|  | #define API_AUDIO_ECHO_CANCELLER3_FACTORY_H_ | 
|  |  | 
|  | #include <memory> | 
|  |  | 
|  | #include "api/audio/echo_canceller3_config.h" | 
|  | #include "api/audio/echo_control.h" | 
|  | #include "rtc_base/system/rtc_export.h" | 
|  |  | 
|  | namespace webrtc { | 
|  |  | 
|  | class RTC_EXPORT EchoCanceller3Factory : public EchoControlFactory { | 
|  | public: | 
|  | // Factory producing EchoCanceller3 instances with the default configuration. | 
|  | EchoCanceller3Factory(); | 
|  |  | 
|  | // Factory producing EchoCanceller3 instances with the specified | 
|  | // configuration. | 
|  | explicit EchoCanceller3Factory(const EchoCanceller3Config& config); | 
|  |  | 
|  | // Creates an EchoCanceller3 with a specified channel count and sampling rate. | 
|  | std::unique_ptr<EchoControl> Create(int sample_rate_hz, | 
|  | int num_render_channels, | 
|  | int num_capture_channels) override; | 
|  |  | 
|  | private: | 
|  | const EchoCanceller3Config config_; | 
|  | }; | 
|  | }  // namespace webrtc | 
|  |  | 
|  | #endif  // API_AUDIO_ECHO_CANCELLER3_FACTORY_H_ |