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 <media/EffectsFactoryApi.h>
21
22 #include <audio_effects/effect_ns.h>
23 /**
24 * returns true if this interface is not associated with an initialized Noise Suppression effect
25 */
NO_NOISESUPPRESS(IAndroidNoiseSuppression * v)26 static inline bool NO_NOISESUPPRESS(IAndroidNoiseSuppression* v) {
27 return (v->mNSEffect == 0);
28 }
29
IAndroidNoiseSuppression_SetEnabled(SLAndroidNoiseSuppressionItf self,SLboolean enabled)30 SLresult IAndroidNoiseSuppression_SetEnabled(SLAndroidNoiseSuppressionItf self, SLboolean enabled)
31 {
32 SL_ENTER_INTERFACE
33
34 IAndroidNoiseSuppression *thiz = (IAndroidNoiseSuppression *) self;
35 interface_lock_exclusive(thiz);
36 thiz->mEnabled = (SLboolean) enabled;
37 if (NO_NOISESUPPRESS(thiz)) {
38 result = SL_RESULT_CONTROL_LOST;
39 } else {
40 android::status_t status = thiz->mNSEffect->setEnabled((bool) thiz->mEnabled);
41 result = android_fx_statusToResult(status);
42 }
43 interface_unlock_exclusive(thiz);
44
45 SL_LEAVE_INTERFACE
46 }
47
IAndroidNoiseSuppression_IsEnabled(SLAndroidNoiseSuppressionItf self,SLboolean * pEnabled)48 SLresult IAndroidNoiseSuppression_IsEnabled(SLAndroidNoiseSuppressionItf self, SLboolean *pEnabled)
49 {
50 SL_ENTER_INTERFACE
51
52 if (NULL == pEnabled) {
53 result = SL_RESULT_PARAMETER_INVALID;
54 } else {
55 IAndroidNoiseSuppression *thiz = (IAndroidNoiseSuppression *) self;
56 interface_lock_exclusive(thiz);
57 if (NO_NOISESUPPRESS(thiz)) {
58 result = SL_RESULT_CONTROL_LOST;
59 } else {
60 *pEnabled = (SLboolean) thiz->mNSEffect->getEnabled();
61 result = SL_RESULT_SUCCESS;
62 }
63 interface_unlock_exclusive(thiz);
64 }
65 SL_LEAVE_INTERFACE
66 }
67
IAndroidNoiseSuppression_IsAvailable(SLAndroidNoiseSuppressionItf self,SLboolean * pEnabled)68 SLresult IAndroidNoiseSuppression_IsAvailable(SLAndroidNoiseSuppressionItf self,
69 SLboolean *pEnabled)
70 {
71 SL_ENTER_INTERFACE
72
73 *pEnabled = false;
74
75 uint32_t numEffects = 0;
76 int ret = EffectQueryNumberEffects(&numEffects);
77 if (ret != 0) {
78 ALOGE("IAndroidNoiseSuppression_IsAvailable() error %d querying number of effects", ret);
79 result = SL_RESULT_FEATURE_UNSUPPORTED;
80 } else {
81 ALOGV("EffectQueryNumberEffects() numEffects=%d", numEffects);
82
83 effect_descriptor_t fxDesc;
84 for (uint32_t i = 0 ; i < numEffects ; i++) {
85 if (EffectQueryEffect(i, &fxDesc) == 0) {
86 ALOGV("effect %d is called %s", i, fxDesc.name);
87 if (memcmp(&fxDesc.type, SL_IID_ANDROIDNOISESUPPRESSION,
88 sizeof(effect_uuid_t)) == 0) {
89 ALOGI("found effect \"%s\" from %s", fxDesc.name, fxDesc.implementor);
90 *pEnabled = true;
91 break;
92 }
93 }
94 }
95 result = SL_RESULT_SUCCESS;
96 }
97 SL_LEAVE_INTERFACE
98 }
99
100 static const struct SLAndroidNoiseSuppressionItf_ IAndroidNoiseSuppression_Itf = {
101 IAndroidNoiseSuppression_SetEnabled,
102 IAndroidNoiseSuppression_IsEnabled,
103 IAndroidNoiseSuppression_IsAvailable
104 };
105
IAndroidNoiseSuppression_init(void * self)106 void IAndroidNoiseSuppression_init(void *self)
107 {
108 IAndroidNoiseSuppression *thiz = (IAndroidNoiseSuppression *) self;
109 thiz->mItf = &IAndroidNoiseSuppression_Itf;
110 thiz->mEnabled = SL_BOOLEAN_FALSE;
111 memset(&thiz->mNSDescriptor, 0, sizeof(effect_descriptor_t));
112 // placement new (explicit constructor)
113 (void) new (&thiz->mNSEffect) android::sp<android::AudioEffect>();
114 }
115
IAndroidNoiseSuppression_deinit(void * self)116 void IAndroidNoiseSuppression_deinit(void *self)
117 {
118 IAndroidNoiseSuppression *thiz = (IAndroidNoiseSuppression *) self;
119 // explicit destructor
120 thiz->mNSEffect.~sp();
121 }
122
IAndroidNoiseSuppression_Expose(void * self)123 bool IAndroidNoiseSuppression_Expose(void *self)
124 {
125 IAndroidNoiseSuppression *thiz = (IAndroidNoiseSuppression *) self;
126 if (!android_fx_initEffectDescriptor(SL_IID_ANDROIDNOISESUPPRESSION, &thiz->mNSDescriptor)) {
127 SL_LOGE("Noise Suppression initialization failed.");
128 return false;
129 }
130 return true;
131 }
132