/* * Copyright (C) 2014 The Android Open Source Project * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ /* Automatic Gain Control implementation */ #include "sles_allinclusive.h" #include <system/audio_effects/effect_agc.h> /** * returns true if this interface is not associated with an initialized AGC effect */ static inline bool NO_AUTOGAIN(IAndroidAutomaticGainControl* v) { return (v->mAGCEffect == 0); } SLresult IAndroidAutomaticGainControl_SetEnabled(SLAndroidAutomaticGainControlItf self, SLboolean enabled) { SL_ENTER_INTERFACE IAndroidAutomaticGainControl *thiz = (IAndroidAutomaticGainControl *) self; interface_lock_exclusive(thiz); thiz->mEnabled = (SLboolean) enabled; if (NO_AUTOGAIN(thiz)) { result = SL_RESULT_CONTROL_LOST; } else { android::status_t status = thiz->mAGCEffect->setEnabled((bool) thiz->mEnabled); result = android_fx_statusToResult(status); } interface_unlock_exclusive(thiz); SL_LEAVE_INTERFACE } SLresult IAndroidAutomaticGainControl_IsEnabled(SLAndroidAutomaticGainControlItf self, SLboolean *pEnabled) { SL_ENTER_INTERFACE if (NULL == pEnabled) { result = SL_RESULT_PARAMETER_INVALID; } else { IAndroidAutomaticGainControl *thiz = (IAndroidAutomaticGainControl *) self; interface_lock_exclusive(thiz); if (NO_AUTOGAIN(thiz)) { result = SL_RESULT_CONTROL_LOST; } else { *pEnabled = (SLboolean) thiz->mAGCEffect->getEnabled(); result = SL_RESULT_SUCCESS; } interface_unlock_exclusive(thiz); } SL_LEAVE_INTERFACE } static const struct SLAndroidAutomaticGainControlItf_ IAndroidAutomaticGainControl_Itf = { IAndroidAutomaticGainControl_SetEnabled, IAndroidAutomaticGainControl_IsEnabled }; void IAndroidAutomaticGainControl_init(void *self) { IAndroidAutomaticGainControl *thiz = (IAndroidAutomaticGainControl *) self; thiz->mItf = &IAndroidAutomaticGainControl_Itf; thiz->mEnabled = SL_BOOLEAN_FALSE; memset(&thiz->mAGCDescriptor, 0, sizeof(effect_descriptor_t)); // placement new (explicit constructor) (void) new (&thiz->mAGCEffect) android::sp<android::AudioEffect>(); } void IAndroidAutomaticGainControl_deinit(void *self) { IAndroidAutomaticGainControl *thiz = (IAndroidAutomaticGainControl *) self; // explicit destructor thiz->mAGCEffect.~sp(); } bool IAndroidAutomaticGainControl_Expose(void *self) { IAndroidAutomaticGainControl *thiz = (IAndroidAutomaticGainControl *) self; if (!android_fx_initEffectDescriptor(SL_IID_ANDROIDAUTOMATICGAINCONTROL, &thiz->mAGCDescriptor)) { SL_LOGE("Automatic Gain Control initialization failed."); return false; } return true; }