1 /* 2 * Copyright (C) 2022 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 package com.android.media.benchmark.library; 18 import android.media.MediaCodec; 19 import java.nio.ByteBuffer; 20 /** 21 * interfaces that can be used to implement 22 * sending of buffers to external and receive using callbacks 23 */ 24 public class IBufferXfer { 25 static class BufferXferInfo { 26 public ByteBuffer buf; 27 public int idx; 28 public Object obj; 29 int flag; 30 int bytesRead; 31 long presentationTimeUs; 32 } 33 34 public interface IReceiveBuffer { 35 // Implemented by sender to get buffers back receiveBuffer(BufferXferInfo info)36 boolean receiveBuffer(BufferXferInfo info); 37 // Establishes a connection between the buffer sender and receiver. 38 // Implemented by the entity that sends the buffers to receiver. 39 // the receiverInterface is the interface of the receiver. 40 // The sender uses this interface to send buffers. connect(IBufferXfer.ISendBuffer receiverInterface)41 boolean connect(IBufferXfer.ISendBuffer receiverInterface); 42 } 43 // Implemented by an entity that does not own the buffers and only 44 // wants to manage the buffers. ( Usually the receiver) 45 // The receiver uses returnIface to return the buffers to sender 46 public interface ISendBuffer { sendBuffer(IBufferXfer.IReceiveBuffer returnIface, BufferXferInfo info)47 boolean sendBuffer(IBufferXfer.IReceiveBuffer returnIface, 48 BufferXferInfo info); 49 } 50 } 51