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 24 namespace android { 25 26 ABuffer::ABuffer(size_t capacity) 27 : mMediaBufferBase(NULL), 28 mRangeOffset(0), 29 mInt32Data(0), 30 mOwnsData(true) { 31 mData = malloc(capacity); 32 if (mData == NULL) { 33 mCapacity = 0; 34 mRangeLength = 0; 35 } else { 36 mCapacity = capacity; 37 mRangeLength = capacity; 38 } 39 } 40 41 ABuffer::ABuffer(void *data, size_t capacity) 42 : mMediaBufferBase(NULL), 43 mData(data), 44 mCapacity(capacity), 45 mRangeOffset(0), 46 mRangeLength(capacity), 47 mInt32Data(0), 48 mOwnsData(false) { 49 } 50 51 // static 52 sp<ABuffer> ABuffer::CreateAsCopy(const void *data, size_t capacity) 53 { 54 sp<ABuffer> res = new ABuffer(capacity); 55 if (res->base() == NULL) { 56 return NULL; 57 } 58 memcpy(res->data(), data, capacity); 59 return res; 60 } 61 62 ABuffer::~ABuffer() { 63 if (mOwnsData) { 64 if (mData != NULL) { 65 free(mData); 66 mData = NULL; 67 } 68 } 69 70 if (mFarewell != NULL) { 71 mFarewell->post(); 72 } 73 74 setMediaBufferBase(NULL); 75 } 76 77 void ABuffer::setRange(size_t offset, size_t size) { 78 CHECK_LE(offset, mCapacity); 79 CHECK_LE(offset + size, mCapacity); 80 81 mRangeOffset = offset; 82 mRangeLength = size; 83 } 84 85 void ABuffer::setFarewellMessage(const sp<AMessage> msg) { 86 mFarewell = msg; 87 } 88 89 sp<AMessage> ABuffer::meta() { 90 if (mMeta == NULL) { 91 mMeta = new AMessage; 92 } 93 return mMeta; 94 } 95 96 MediaBufferBase *ABuffer::getMediaBufferBase() { 97 if (mMediaBufferBase != NULL) { 98 mMediaBufferBase->add_ref(); 99 } 100 return mMediaBufferBase; 101 } 102 103 void ABuffer::setMediaBufferBase(MediaBufferBase *mediaBuffer) { 104 if (mMediaBufferBase != NULL) { 105 mMediaBufferBase->release(); 106 } 107 mMediaBufferBase = mediaBuffer; 108 } 109 110 } // namespace android 111 112