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 #include "LVM_Types.h"
22 
23 /************************************************************************************/
24 /*                                                                                  */
25 /*    Structures                                                                    */
26 /*                                                                                  */
27 /************************************************************************************/
28 
29 /*
30  * Biquad with coefficients A0, A1, A2, B1 and B2 coefficients
31  */
32 /* Single precision (16-bit) Biquad section coefficients */
33 typedef struct
34 {
35     LVM_FLOAT   A0;
36     LVM_FLOAT   A1;
37     LVM_FLOAT   A2;
38     LVM_FLOAT   B1;
39     LVM_FLOAT   B2;
40     LVM_UINT16  Scale;
41 } BiquadA012B12CoefsSP_t;
42 /*
43  * Biquad with coefficients A0, A1 and B1 coefficients
44  */
45 /* Single precision (16-bit) Biquad section coefficients */
46 typedef struct
47 {
48     LVM_FLOAT   A0;
49     LVM_FLOAT   A1;
50     LVM_FLOAT   B1;
51     LVM_UINT16  Scale;
52 } BiquadA01B1CoefsSP_t;
53 
54 #endif      /* FILTERS_H */
55 
56