1 /* 2 * Copyright (C) 2004-2010 NXP Software 3 * Copyright (C) 2010 The Android Open Source Project 4 * 5 * Licensed under the Apache License, Version 2.0 (the "License"); 6 * you may not use this file except in compliance with the License. 7 * You may obtain a copy of the License at 8 * 9 * http://www.apache.org/licenses/LICENSE-2.0 10 * 11 * Unless required by applicable law or agreed to in writing, software 12 * distributed under the License is distributed on an "AS IS" BASIS, 13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 14 * See the License for the specific language governing permissions and 15 * limitations under the License. 16 */ 17 18 #ifndef FILTERS_H 19 #define FILTERS_H 20 21 #ifdef __cplusplus 22 extern "C" { 23 #endif /* __cplusplus */ 24 25 #include "LVM_Types.h" 26 27 /************************************************************************************/ 28 /* */ 29 /* Structures */ 30 /* */ 31 /************************************************************************************/ 32 33 /* 34 * Biquad with coefficients A0, A1, A2, B1 and B2 coefficients 35 */ 36 /* Single precision (16-bit) Biquad section coefficients */ 37 typedef struct 38 { 39 LVM_INT16 A0; 40 LVM_INT16 A1; 41 LVM_INT16 A2; 42 LVM_INT16 B1; 43 LVM_INT16 B2; 44 LVM_UINT16 Scale; 45 } BiquadA012B12CoefsSP_t; 46 47 48 /* 49 * Biquad with coefficients A0, A1 and B1 coefficients 50 */ 51 /* Single precision (16-bit) Biquad section coefficients */ 52 typedef struct 53 { 54 LVM_INT16 A0; 55 LVM_INT16 A1; 56 LVM_INT16 B1; 57 LVM_UINT16 Scale; 58 } BiquadA01B1CoefsSP_t; 59 60 61 #ifdef __cplusplus 62 } 63 #endif /* __cplusplus */ 64 65 #endif /* FILTERS_H */ 66 67
