| /* |
| * Copyright (C) 2010 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. |
| */ |
| |
| #ifndef A_BUFFER_H_ |
| |
| #define A_BUFFER_H_ |
| |
| #include <sys/types.h> |
| #include <stdint.h> |
| |
| #include <media/stagefright/foundation/ABase.h> |
| #include <utils/RefBase.h> |
| |
| namespace android { |
| |
| struct AMessage; |
| |
| struct ABuffer : public RefBase { |
| explicit ABuffer(size_t capacity); |
| ABuffer(void *data, size_t capacity); |
| |
| uint8_t *base() { return (uint8_t *)mData; } |
| uint8_t *data() { return (uint8_t *)mData + mRangeOffset; } |
| size_t capacity() const { return mCapacity; } |
| size_t size() const { return mRangeLength; } |
| size_t offset() const { return mRangeOffset; } |
| |
| void setRange(size_t offset, size_t size); |
| |
| // create buffer from dup of some memory block |
| static sp<ABuffer> CreateAsCopy(const void *data, size_t capacity); |
| |
| void setInt32Data(int32_t data) { mInt32Data = data; } |
| int32_t int32Data() const { return mInt32Data; } |
| |
| sp<AMessage> meta(); |
| |
| protected: |
| virtual ~ABuffer(); |
| |
| private: |
| sp<AMessage> mMeta; |
| |
| void *mData; |
| size_t mCapacity; |
| size_t mRangeOffset; |
| size_t mRangeLength; |
| |
| int32_t mInt32Data; |
| |
| bool mOwnsData; |
| |
| DISALLOW_EVIL_CONSTRUCTORS(ABuffer); |
| }; |
| |
| } // namespace android |
| |
| #endif // A_BUFFER_H_ |