1 /*
2 * Copyright (C) 2014 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 /* Automatic Gain Control implementation */
18 #include "sles_allinclusive.h"
19
20 #include <system/audio_effects/effect_ns.h>
21 /**
22 * returns true if this interface is not associated with an initialized Noise Suppression effect
23 */
NO_NOISESUPPRESS(IAndroidNoiseSuppression * v)24 static inline bool NO_NOISESUPPRESS(IAndroidNoiseSuppression* v) {
25 return (v->mNSEffect == 0);
26 }
27
IAndroidNoiseSuppression_SetEnabled(SLAndroidNoiseSuppressionItf self,SLboolean enabled)28 SLresult IAndroidNoiseSuppression_SetEnabled(SLAndroidNoiseSuppressionItf self, SLboolean enabled)
29 {
30 SL_ENTER_INTERFACE
31
32 IAndroidNoiseSuppression *thiz = (IAndroidNoiseSuppression *) self;
33 interface_lock_exclusive(thiz);
34 thiz->mEnabled = (SLboolean) enabled;
35 if (NO_NOISESUPPRESS(thiz)) {
36 result = SL_RESULT_CONTROL_LOST;
37 } else {
38 android::status_t status = thiz->mNSEffect->setEnabled((bool) thiz->mEnabled);
39 result = android_fx_statusToResult(status);
40 }
41 interface_unlock_exclusive(thiz);
42
43 SL_LEAVE_INTERFACE
44 }
45
IAndroidNoiseSuppression_IsEnabled(SLAndroidNoiseSuppressionItf self,SLboolean * pEnabled)46 SLresult IAndroidNoiseSuppression_IsEnabled(SLAndroidNoiseSuppressionItf self, SLboolean *pEnabled)
47 {
48 SL_ENTER_INTERFACE
49
50 if (NULL == pEnabled) {
51 result = SL_RESULT_PARAMETER_INVALID;
52 } else {
53 IAndroidNoiseSuppression *thiz = (IAndroidNoiseSuppression *) self;
54 interface_lock_exclusive(thiz);
55 if (NO_NOISESUPPRESS(thiz)) {
56 result = SL_RESULT_CONTROL_LOST;
57 } else {
58 *pEnabled = (SLboolean) thiz->mNSEffect->getEnabled();
59 result = SL_RESULT_SUCCESS;
60 }
61 interface_unlock_exclusive(thiz);
62 }
63 SL_LEAVE_INTERFACE
64 }
65
66 static const struct SLAndroidNoiseSuppressionItf_ IAndroidNoiseSuppression_Itf = {
67 IAndroidNoiseSuppression_SetEnabled,
68 IAndroidNoiseSuppression_IsEnabled
69 };
70
IAndroidNoiseSuppression_init(void * self)71 void IAndroidNoiseSuppression_init(void *self)
72 {
73 IAndroidNoiseSuppression *thiz = (IAndroidNoiseSuppression *) self;
74 thiz->mItf = &IAndroidNoiseSuppression_Itf;
75 thiz->mEnabled = SL_BOOLEAN_FALSE;
76 memset(&thiz->mNSDescriptor, 0, sizeof(effect_descriptor_t));
77 // placement new (explicit constructor)
78 (void) new (&thiz->mNSEffect) android::sp<android::AudioEffect>();
79 }
80
IAndroidNoiseSuppression_deinit(void * self)81 void IAndroidNoiseSuppression_deinit(void *self)
82 {
83 IAndroidNoiseSuppression *thiz = (IAndroidNoiseSuppression *) self;
84 // explicit destructor
85 thiz->mNSEffect.~sp();
86 }
87
IAndroidNoiseSuppression_Expose(void * self)88 bool IAndroidNoiseSuppression_Expose(void *self)
89 {
90 IAndroidNoiseSuppression *thiz = (IAndroidNoiseSuppression *) self;
91 if (!android_fx_initEffectDescriptor(SL_IID_ANDROIDNOISESUPPRESSION, &thiz->mNSDescriptor)) {
92 SL_LOGE("Noise Suppression initialization failed.");
93 return false;
94 }
95 return true;
96 }
97