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_AGC_CORE_H_ 18 #define ANDROID_EFFECT_AGC_CORE_H_ 19 20 #include <system/audio_effect.h> 21 22 #if __cplusplus 23 extern "C" { 24 #endif 25 26 // The AGC 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_AGC_ = 29 { 0x0a8abfe0, 0x654c, 0x11e0, 0xba26, { 0x00, 0x02, 0xa5, 0xd5, 0xc5, 0x1b } }; 30 const effect_uuid_t * const FX_IID_AGC = &FX_IID_AGC_; 31 32 33 typedef enum 34 { 35 AGC_PARAM_TARGET_LEVEL, // target output level in millibel 36 AGC_PARAM_COMP_GAIN, // gain in the compression range in millibel 37 AGC_PARAM_LIMITER_ENA, // enable or disable limiter (boolean) 38 AGC_PARAM_PROPERTIES 39 } t_agc_params; 40 41 42 //t_agc_settings groups all current agc settings for backup and restore. 43 typedef struct s_agc_settings { 44 int16_t targetLevel; 45 int16_t compGain; 46 bool limiterEnabled; 47 } t_agc_settings; 48 49 #if __cplusplus 50 } // extern "C" 51 #endif 52 53 54 #endif /*ANDROID_EFFECT_AGC_CORE_H_*/ 55