1f8b3141926967ba37d315cc8d3956d7214958e6bPaul McLean/* 2f8b3141926967ba37d315cc8d3956d7214958e6bPaul McLean * Copyright (C) 2014 The Android Open Source Project 3f8b3141926967ba37d315cc8d3956d7214958e6bPaul McLean * 4f8b3141926967ba37d315cc8d3956d7214958e6bPaul McLean * Licensed under the Apache License, Version 2.0 (the "License"); 5f8b3141926967ba37d315cc8d3956d7214958e6bPaul McLean * you may not use this file except in compliance with the License. 6f8b3141926967ba37d315cc8d3956d7214958e6bPaul McLean * You may obtain a copy of the License at 7f8b3141926967ba37d315cc8d3956d7214958e6bPaul McLean * 8f8b3141926967ba37d315cc8d3956d7214958e6bPaul McLean * http://www.apache.org/licenses/LICENSE-2.0 9f8b3141926967ba37d315cc8d3956d7214958e6bPaul McLean * 10f8b3141926967ba37d315cc8d3956d7214958e6bPaul McLean * Unless required by applicable law or agreed to in writing, software 11f8b3141926967ba37d315cc8d3956d7214958e6bPaul McLean * distributed under the License is distributed on an "AS IS" BASIS, 12f8b3141926967ba37d315cc8d3956d7214958e6bPaul McLean * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13f8b3141926967ba37d315cc8d3956d7214958e6bPaul McLean * See the License for the specific language governing permissions and 14f8b3141926967ba37d315cc8d3956d7214958e6bPaul McLean * limitations under the License. 15f8b3141926967ba37d315cc8d3956d7214958e6bPaul McLean */ 16f8b3141926967ba37d315cc8d3956d7214958e6bPaul McLean 17f8b3141926967ba37d315cc8d3956d7214958e6bPaul McLean/* Acoustic Echo Cancellation implementation */ 18f8b3141926967ba37d315cc8d3956d7214958e6bPaul McLean#include "sles_allinclusive.h" 19f8b3141926967ba37d315cc8d3956d7214958e6bPaul McLean 205639df9d17ff8ae0ab83f1a31187a284044689d7Mikhail Naganov#include <system/audio_effects/effect_aec.h> 21f8b3141926967ba37d315cc8d3956d7214958e6bPaul McLean 22f8b3141926967ba37d315cc8d3956d7214958e6bPaul McLean/** 23f8b3141926967ba37d315cc8d3956d7214958e6bPaul McLean * returns true if this interface is not associated with an initialized AEC effect 24f8b3141926967ba37d315cc8d3956d7214958e6bPaul McLean */ 25f8b3141926967ba37d315cc8d3956d7214958e6bPaul McLeanstatic inline bool NO_ECHOCANCEL(IAndroidAcousticEchoCancellation* v) { 26f8b3141926967ba37d315cc8d3956d7214958e6bPaul McLean return (v->mAECEffect == 0); 27f8b3141926967ba37d315cc8d3956d7214958e6bPaul McLean} 28f8b3141926967ba37d315cc8d3956d7214958e6bPaul McLean 290c7022072205ec9790a5b2c1b626096fc4cba74dGlenn Kastenstatic SLresult IAndroidAcousticEchoCancellation_SetEnabled( 300c7022072205ec9790a5b2c1b626096fc4cba74dGlenn Kasten SLAndroidAcousticEchoCancellationItf self, 31f8b3141926967ba37d315cc8d3956d7214958e6bPaul McLean SLboolean enabled) 32f8b3141926967ba37d315cc8d3956d7214958e6bPaul McLean{ 33f8b3141926967ba37d315cc8d3956d7214958e6bPaul McLean SL_ENTER_INTERFACE 34f8b3141926967ba37d315cc8d3956d7214958e6bPaul McLean 35f8b3141926967ba37d315cc8d3956d7214958e6bPaul McLean IAndroidAcousticEchoCancellation *thiz = (IAndroidAcousticEchoCancellation *) self; 36f8b3141926967ba37d315cc8d3956d7214958e6bPaul McLean interface_lock_exclusive(thiz); 37f8b3141926967ba37d315cc8d3956d7214958e6bPaul McLean thiz->mEnabled = (SLboolean) enabled; 38f8b3141926967ba37d315cc8d3956d7214958e6bPaul McLean if (NO_ECHOCANCEL(thiz)) { 39f8b3141926967ba37d315cc8d3956d7214958e6bPaul McLean result = SL_RESULT_CONTROL_LOST; 40f8b3141926967ba37d315cc8d3956d7214958e6bPaul McLean } else { 41f8b3141926967ba37d315cc8d3956d7214958e6bPaul McLean android::status_t status = thiz->mAECEffect->setEnabled((bool) thiz->mEnabled); 42f8b3141926967ba37d315cc8d3956d7214958e6bPaul McLean result = android_fx_statusToResult(status); 43f8b3141926967ba37d315cc8d3956d7214958e6bPaul McLean } 44f8b3141926967ba37d315cc8d3956d7214958e6bPaul McLean interface_unlock_exclusive(thiz); 45f8b3141926967ba37d315cc8d3956d7214958e6bPaul McLean 46f8b3141926967ba37d315cc8d3956d7214958e6bPaul McLean SL_LEAVE_INTERFACE 47f8b3141926967ba37d315cc8d3956d7214958e6bPaul McLean} 48f8b3141926967ba37d315cc8d3956d7214958e6bPaul McLean 490c7022072205ec9790a5b2c1b626096fc4cba74dGlenn Kastenstatic SLresult IAndroidAcousticEchoCancellation_IsEnabled( 500c7022072205ec9790a5b2c1b626096fc4cba74dGlenn Kasten SLAndroidAcousticEchoCancellationItf self, 51f8b3141926967ba37d315cc8d3956d7214958e6bPaul McLean SLboolean *pEnabled) 52f8b3141926967ba37d315cc8d3956d7214958e6bPaul McLean{ 53f8b3141926967ba37d315cc8d3956d7214958e6bPaul McLean SL_ENTER_INTERFACE 54f8b3141926967ba37d315cc8d3956d7214958e6bPaul McLean 55f8b3141926967ba37d315cc8d3956d7214958e6bPaul McLean if (NULL == pEnabled) { 56f8b3141926967ba37d315cc8d3956d7214958e6bPaul McLean result = SL_RESULT_PARAMETER_INVALID; 57f8b3141926967ba37d315cc8d3956d7214958e6bPaul McLean } else { 58f8b3141926967ba37d315cc8d3956d7214958e6bPaul McLean IAndroidAcousticEchoCancellation *thiz = (IAndroidAcousticEchoCancellation *) self; 59f8b3141926967ba37d315cc8d3956d7214958e6bPaul McLean interface_lock_exclusive(thiz); 60f8b3141926967ba37d315cc8d3956d7214958e6bPaul McLean if (NO_ECHOCANCEL(thiz)) { 61f8b3141926967ba37d315cc8d3956d7214958e6bPaul McLean result = SL_RESULT_CONTROL_LOST; 62f8b3141926967ba37d315cc8d3956d7214958e6bPaul McLean } else { 63f8b3141926967ba37d315cc8d3956d7214958e6bPaul McLean *pEnabled = (SLboolean) thiz->mAECEffect->getEnabled(); 64f8b3141926967ba37d315cc8d3956d7214958e6bPaul McLean result = SL_RESULT_SUCCESS; 65f8b3141926967ba37d315cc8d3956d7214958e6bPaul McLean } 66f8b3141926967ba37d315cc8d3956d7214958e6bPaul McLean interface_unlock_exclusive(thiz); 67f8b3141926967ba37d315cc8d3956d7214958e6bPaul McLean } 68f8b3141926967ba37d315cc8d3956d7214958e6bPaul McLean 69f8b3141926967ba37d315cc8d3956d7214958e6bPaul McLean SL_LEAVE_INTERFACE 70f8b3141926967ba37d315cc8d3956d7214958e6bPaul McLean} 71f8b3141926967ba37d315cc8d3956d7214958e6bPaul McLean 72f8b3141926967ba37d315cc8d3956d7214958e6bPaul McLeanstatic const struct SLAndroidAcousticEchoCancellationItf_ IAndroidAcousticEchoCancellation_Itf = { 73f8b3141926967ba37d315cc8d3956d7214958e6bPaul McLean IAndroidAcousticEchoCancellation_SetEnabled, 74677c796097b542e9ee6cf43a59e754f43c2370dcEric Laurent IAndroidAcousticEchoCancellation_IsEnabled 75f8b3141926967ba37d315cc8d3956d7214958e6bPaul McLean}; 76f8b3141926967ba37d315cc8d3956d7214958e6bPaul McLean 77f8b3141926967ba37d315cc8d3956d7214958e6bPaul McLeanvoid IAndroidAcousticEchoCancellation_init(void *self) 78f8b3141926967ba37d315cc8d3956d7214958e6bPaul McLean{ 79f8b3141926967ba37d315cc8d3956d7214958e6bPaul McLean IAndroidAcousticEchoCancellation *thiz = (IAndroidAcousticEchoCancellation *) self; 80f8b3141926967ba37d315cc8d3956d7214958e6bPaul McLean thiz->mItf = &IAndroidAcousticEchoCancellation_Itf; 81f8b3141926967ba37d315cc8d3956d7214958e6bPaul McLean thiz->mEnabled = SL_BOOLEAN_FALSE; 82f8b3141926967ba37d315cc8d3956d7214958e6bPaul McLean memset(&thiz->mAECDescriptor, 0, sizeof(effect_descriptor_t)); 83f8b3141926967ba37d315cc8d3956d7214958e6bPaul McLean // placement new (explicit constructor) 84f8b3141926967ba37d315cc8d3956d7214958e6bPaul McLean (void) new (&thiz->mAECEffect) android::sp<android::AudioEffect>(); 85f8b3141926967ba37d315cc8d3956d7214958e6bPaul McLean} 86f8b3141926967ba37d315cc8d3956d7214958e6bPaul McLean 87f8b3141926967ba37d315cc8d3956d7214958e6bPaul McLeanvoid IAndroidAcousticEchoCancellation_deinit(void *self) 88f8b3141926967ba37d315cc8d3956d7214958e6bPaul McLean{ 89f8b3141926967ba37d315cc8d3956d7214958e6bPaul McLean IAndroidAcousticEchoCancellation *thiz = (IAndroidAcousticEchoCancellation *) self; 90f8b3141926967ba37d315cc8d3956d7214958e6bPaul McLean // explicit destructor 91f8b3141926967ba37d315cc8d3956d7214958e6bPaul McLean thiz->mAECEffect.~sp(); 92f8b3141926967ba37d315cc8d3956d7214958e6bPaul McLean} 93f8b3141926967ba37d315cc8d3956d7214958e6bPaul McLean 94f8b3141926967ba37d315cc8d3956d7214958e6bPaul McLeanbool IAndroidAcousticEchoCancellation_Expose(void *self) 95f8b3141926967ba37d315cc8d3956d7214958e6bPaul McLean{ 96f8b3141926967ba37d315cc8d3956d7214958e6bPaul McLean IAndroidAcousticEchoCancellation *thiz = (IAndroidAcousticEchoCancellation *) self; 97f8b3141926967ba37d315cc8d3956d7214958e6bPaul McLean if (!android_fx_initEffectDescriptor(SL_IID_ANDROIDACOUSTICECHOCANCELLATION, 98f8b3141926967ba37d315cc8d3956d7214958e6bPaul McLean &thiz->mAECDescriptor)) { 99f8b3141926967ba37d315cc8d3956d7214958e6bPaul McLean SL_LOGE("Acoustic Echo Cancellation initialization failed."); 100f8b3141926967ba37d315cc8d3956d7214958e6bPaul McLean return false; 101f8b3141926967ba37d315cc8d3956d7214958e6bPaul McLean } 102f8b3141926967ba37d315cc8d3956d7214958e6bPaul McLean return true; 103f8b3141926967ba37d315cc8d3956d7214958e6bPaul McLean} 104