1 /* 2 * Copyright (C) 2011 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 #ifndef ANDROID_EFFECT_AEC_H_ 18 #define ANDROID_EFFECT_AEC_H_ 19 20 #include <hardware/audio_effect.h> 21 22 #if __cplusplus 23 extern "C" { 24 #endif 25 26 // The AEC type UUID is not defined by OpenSL ES and has been generated from 27 // http://www.itu.int/ITU-T/asn1/uuid.html 28 static const effect_uuid_t FX_IID_AEC_ = 29 { 0x7b491460, 0x8d4d, 0x11e0, 0xbd61, { 0x00, 0x02, 0xa5, 0xd5, 0xc5, 0x1b } }; 30 const effect_uuid_t * const FX_IID_AEC = &FX_IID_AEC_; 31 32 typedef enum 33 { 34 AEC_PARAM_ECHO_DELAY, // echo delay in microseconds 35 AEC_PARAM_PROPERTIES 36 } t_aec_params; 37 38 //t_equalizer_settings groups all current aec settings for backup and restore. 39 typedef struct s_aec_settings { 40 uint32_t echoDelay; 41 } t_aec_settings; 42 43 #if __cplusplus 44 } // extern "C" 45 #endif 46 47 48 #endif /*ANDROID_EFFECT_AEC_H_*/ 49
