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104 lines
3.6 KiB
104 lines
3.6 KiB
/*
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* Copyright (C) 2014 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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/* Acoustic Echo Cancellation implementation */
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#include "sles_allinclusive.h"
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#include <system/audio_effects/effect_aec.h>
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/**
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* returns true if this interface is not associated with an initialized AEC effect
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*/
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static inline bool NO_ECHOCANCEL(IAndroidAcousticEchoCancellation* v) {
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return (v->mAECEffect == 0);
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}
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static SLresult IAndroidAcousticEchoCancellation_SetEnabled(
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SLAndroidAcousticEchoCancellationItf self,
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SLboolean enabled)
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{
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SL_ENTER_INTERFACE
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IAndroidAcousticEchoCancellation *thiz = (IAndroidAcousticEchoCancellation *) self;
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interface_lock_exclusive(thiz);
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thiz->mEnabled = (SLboolean) enabled;
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if (NO_ECHOCANCEL(thiz)) {
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result = SL_RESULT_CONTROL_LOST;
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} else {
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android::status_t status = thiz->mAECEffect->setEnabled((bool) thiz->mEnabled);
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result = android_fx_statusToResult(status);
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}
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interface_unlock_exclusive(thiz);
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SL_LEAVE_INTERFACE
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}
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static SLresult IAndroidAcousticEchoCancellation_IsEnabled(
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SLAndroidAcousticEchoCancellationItf self,
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SLboolean *pEnabled)
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{
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SL_ENTER_INTERFACE
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if (NULL == pEnabled) {
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result = SL_RESULT_PARAMETER_INVALID;
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} else {
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IAndroidAcousticEchoCancellation *thiz = (IAndroidAcousticEchoCancellation *) self;
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interface_lock_exclusive(thiz);
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if (NO_ECHOCANCEL(thiz)) {
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result = SL_RESULT_CONTROL_LOST;
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} else {
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*pEnabled = (SLboolean) thiz->mAECEffect->getEnabled();
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result = SL_RESULT_SUCCESS;
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}
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interface_unlock_exclusive(thiz);
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}
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SL_LEAVE_INTERFACE
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}
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static const struct SLAndroidAcousticEchoCancellationItf_ IAndroidAcousticEchoCancellation_Itf = {
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IAndroidAcousticEchoCancellation_SetEnabled,
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IAndroidAcousticEchoCancellation_IsEnabled
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};
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void IAndroidAcousticEchoCancellation_init(void *self)
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{
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IAndroidAcousticEchoCancellation *thiz = (IAndroidAcousticEchoCancellation *) self;
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thiz->mItf = &IAndroidAcousticEchoCancellation_Itf;
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thiz->mEnabled = SL_BOOLEAN_FALSE;
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memset(&thiz->mAECDescriptor, 0, sizeof(effect_descriptor_t));
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// placement new (explicit constructor)
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(void) new (&thiz->mAECEffect) android::sp<android::AudioEffect>();
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}
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void IAndroidAcousticEchoCancellation_deinit(void *self)
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{
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IAndroidAcousticEchoCancellation *thiz = (IAndroidAcousticEchoCancellation *) self;
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// explicit destructor
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thiz->mAECEffect.~sp();
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}
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bool IAndroidAcousticEchoCancellation_Expose(void *self)
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{
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IAndroidAcousticEchoCancellation *thiz = (IAndroidAcousticEchoCancellation *) self;
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if (!android_fx_initEffectDescriptor(SL_IID_ANDROIDACOUSTICECHOCANCELLATION,
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&thiz->mAECDescriptor)) {
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SL_LOGE("Acoustic Echo Cancellation initialization failed.");
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return false;
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}
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return true;
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}
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