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
22extern "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 */
37typedef 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 */
52typedef 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