ABuffer.cpp revision 96e92b58b7e9647b4c7c2f54b62a1b357ab06b66
1/* 2 * Copyright (C) 2010 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#include "ABuffer.h" 18 19#include "ADebug.h" 20#include "ALooper.h" 21#include "AMessage.h" 22#include "MediaBufferBase.h" 23 24namespace android { 25 26ABuffer::ABuffer(size_t capacity) 27 : mMediaBufferBase(NULL), 28 mData(malloc(capacity)), 29 mCapacity(capacity), 30 mRangeOffset(0), 31 mRangeLength(capacity), 32 mInt32Data(0), 33 mOwnsData(true) { 34} 35 36ABuffer::ABuffer(void *data, size_t capacity) 37 : mMediaBufferBase(NULL), 38 mData(data), 39 mCapacity(capacity), 40 mRangeOffset(0), 41 mRangeLength(capacity), 42 mInt32Data(0), 43 mOwnsData(false) { 44} 45 46// static 47sp<ABuffer> ABuffer::CreateAsCopy(const void *data, size_t capacity) 48{ 49 sp<ABuffer> res = new ABuffer(capacity); 50 memcpy(res->data(), data, capacity); 51 return res; 52} 53 54ABuffer::~ABuffer() { 55 if (mOwnsData) { 56 if (mData != NULL) { 57 free(mData); 58 mData = NULL; 59 } 60 } 61 62 if (mFarewell != NULL) { 63 mFarewell->post(); 64 } 65 66 setMediaBufferBase(NULL); 67} 68 69void ABuffer::setRange(size_t offset, size_t size) { 70 CHECK_LE(offset, mCapacity); 71 CHECK_LE(offset + size, mCapacity); 72 73 mRangeOffset = offset; 74 mRangeLength = size; 75} 76 77void ABuffer::setFarewellMessage(const sp<AMessage> msg) { 78 mFarewell = msg; 79} 80 81sp<AMessage> ABuffer::meta() { 82 if (mMeta == NULL) { 83 mMeta = new AMessage; 84 } 85 return mMeta; 86} 87 88MediaBufferBase *ABuffer::getMediaBufferBase() { 89 if (mMediaBufferBase != NULL) { 90 mMediaBufferBase->add_ref(); 91 } 92 return mMediaBufferBase; 93} 94 95void ABuffer::setMediaBufferBase(MediaBufferBase *mediaBuffer) { 96 if (mMediaBufferBase != NULL) { 97 mMediaBufferBase->release(); 98 } 99 mMediaBufferBase = mediaBuffer; 100} 101 102} // namespace android 103 104