1/* 2 * Copyright (C) 2020 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 17package android.hardware.audio.effect@7.0; 18 19/** 20 * This callback interface contains functions that can be used by the effect 21 * engine 'process' function to exchange input and output audio buffers. 22 */ 23interface IEffectBufferProviderCallback { 24 /** 25 * Called to retrieve a buffer where data should read from by 'process' 26 * function. 27 * 28 * @return buffer audio buffer for processing 29 */ 30 getBuffer() generates (AudioBuffer buffer); 31 32 /** 33 * Called to provide a buffer with the data written by 'process' function. 34 * 35 * @param buffer audio buffer for processing 36 */ 37 putBuffer(AudioBuffer buffer); 38}; 39