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 IMAGE_UTILS_H 17 #define IMAGE_UTILS_H 18 19 #include <cstdio> 20 #include <istream> 21 #include <string> 22 #include "image_type.h" 23 #include "plugin_server.h" 24 25 namespace OHOS { 26 namespace Media { 27 const std::string IMAGE_ENCODE_FORMAT = "encodeFormat"; 28 constexpr uint32_t MALLOC_MAX_LENTH = 0x40000000; 29 30 class ImageUtils { 31 public: 32 static bool GetFileSize(const std::string &pathName, size_t &size); 33 static bool GetFileSize(const int fd, size_t &size); 34 static bool GetInputStreamSize(std::istream &inputStream, size_t &size); 35 static int32_t GetPixelBytes(const PixelFormat &pixelFormat); 36 static bool PathToRealPath(const std::string &path, std::string &realPath); 37 static bool FloatCompareZero(float src); 38 static AlphaType GetValidAlphaTypeByFormat(const AlphaType &dstType, const PixelFormat &format); 39 static bool IsValidImageInfo(const ImageInfo &info); 40 static MultimediaPlugin::PluginServer& GetPluginServer(); 41 static bool CheckMulOverflow(int32_t width, int32_t bytesPerPixel); 42 static bool CheckMulOverflow(int32_t width, int32_t height, int32_t bytesPerPixel); 43 44 private: 45 static uint32_t RegisterPluginServer(); 46 }; 47 } // namespace Media 48 } // namespace OHOS 49 #endif // IMAGE_UTILS_H