1 /* 2 * Copyright (C) 2016 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_NS_CORE_H_ 18 #define ANDROID_EFFECT_NS_CORE_H_ 19 20 #include <system/audio_effect.h> 21 22 #if __cplusplus 23 extern "C" { 24 #endif 25 26 // The NS 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_NS_ = 29 { 0x58b4b260, 0x8e06, 0x11e0, 0xaa8e, { 0x00, 0x02, 0xa5, 0xd5, 0xc5, 0x1b } }; 30 const effect_uuid_t * const FX_IID_NS = &FX_IID_NS_; 31 32 typedef enum 33 { 34 NS_PARAM_LEVEL, // noise suppression level (t_ns_level) 35 NS_PARAM_PROPERTIES, 36 NS_PARAM_TYPE // noise suppression type (t_ns_type) 37 } t_ns_params; 38 39 // noise suppression level 40 typedef enum { 41 NS_LEVEL_LOW, 42 NS_LEVEL_MEDIUM, 43 NS_LEVEL_HIGH 44 } t_ns_level; 45 46 // noise suppression type 47 typedef enum { 48 NS_TYPE_SINGLE_CHANNEL, 49 NS_TYPE_MULTI_CHANNEL 50 } t_ns_type; 51 52 // s_ns_settings groups all current ns settings for backup and restore. 53 typedef struct s_ns_settings { 54 uint32_t level; 55 uint32_t type; 56 } t_ns_settings; 57 58 #if __cplusplus 59 } // extern "C" 60 #endif 61 62 63 #endif /*ANDROID_EFFECT_NS_CORE_H_*/ 64
