1/*
2 * Copyright (C) 2011 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_H_
18#define ANDROID_EFFECT_NS_H_
19
20#include <hardware/audio_effect.h>
21
22#if __cplusplus
23extern "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
28static const effect_uuid_t FX_IID_NS_ =
29    { 0x58b4b260, 0x8e06, 0x11e0, 0xaa8e, { 0x00, 0x02, 0xa5, 0xd5, 0xc5, 0x1b } };
30const effect_uuid_t * const FX_IID_NS = &FX_IID_NS_;
31
32typedef enum
33{
34    NS_PARAM_LEVEL,             // noise suppression level (t_ns_level)
35    NS_PARAM_PROPERTIES
36} t_ns_params;
37
38// noise suppression level
39typedef enum {
40    NS_LEVEL_LOW,
41    NS_LEVEL_MEDIUM,
42    NS_LEVEL_HIGH
43} t_ns_level;
44
45// s_ns_settings groups all current ns settings for backup and restore.
46typedef struct s_ns_settings {
47    uint32_t  level;
48} t_ns_settings;
49
50#if __cplusplus
51}  // extern "C"
52#endif
53
54
55#endif /*ANDROID_EFFECT_NS_H_*/
56