1 /* 2 * Copyright (C) 2021 Huawei Device Co., Ltd. 3 * Licensed under the Apache License, Version 2.0 (the "License"); 4 * you may not use this file except in compliance with the License. 5 * You may obtain a copy of the License at 6 * 7 * http://www.apache.org/licenses/LICENSE-2.0 8 * 9 * Unless required by applicable law or agreed to in writing, software 10 * distributed under the License is distributed on an "AS IS" BASIS, 11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12 * See the License for the specific language governing permissions and 13 * limitations under the License. 14 */ 15 16 #ifndef FRAMEWORKS_INNERKITSIMPL_STREAM_INCLUDE_BUFFER_SOURCE_STREAM_H 17 #define FRAMEWORKS_INNERKITSIMPL_STREAM_INCLUDE_BUFFER_SOURCE_STREAM_H 18 19 #include <cstdint> 20 #include <memory> 21 #include <atomic> 22 #include "image/input_data_stream.h" 23 #include "source_stream.h" 24 25 namespace OHOS { 26 namespace Media { 27 class BufferSourceStream : public SourceStream { 28 public: 29 static std::unique_ptr<BufferSourceStream> CreateSourceStream(const uint8_t *data, uint32_t size, 30 bool isUserBuffer = false); 31 BufferSourceStream(uint8_t *data, uint32_t size, uint32_t offset, bool isUserBuffer = false); 32 ~BufferSourceStream() override; 33 bool Read(uint32_t desiredSize, ImagePlugin::DataStreamBuffer &outData) override; 34 bool Read(uint32_t desiredSize, uint8_t *outBuffer, uint32_t bufferSize, uint32_t &readSize) override; 35 bool Peek(uint32_t desiredSize, ImagePlugin::DataStreamBuffer &outData) override; 36 bool Peek(uint32_t desiredSize, uint8_t *outBuffer, uint32_t bufferSize, uint32_t &readSize) override; 37 uint32_t Tell() override; 38 bool Seek(uint32_t position) override; 39 size_t GetStreamSize() override; 40 uint8_t *GetDataPtr() override; 41 uint32_t GetStreamType() override; 42 ImagePlugin::OutputDataStream* ToOutputDataStream() override; 43 44 private: 45 uint8_t *inputBuffer_ = nullptr; 46 size_t dataSize_ = 0; 47 std::atomic_size_t dataOffset_ = 0; 48 bool isUserBuffer_ = false; 49 }; 50 } // namespace Media 51 } // namespace OHOS 52 53 #endif // FRAMEWORKS_INNERKITSIMPL_STREAM_INCLUDE_BUFFER_SOURCE_STREAM_H 54