1 /* 2 * Copyright (c) 2021 - 2023 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 CAMERA_METADATA_INFO_H 17 #define CAMERA_METADATA_INFO_H 18 19 #include <cstdio> 20 #include <cstdint> 21 #include <string> 22 #include "camera_metadata_operator.h" 23 24 static constexpr uint32_t MAX_SUPPORTED_TAGS = 1000; 25 static constexpr uint32_t MAX_SUPPORTED_ITEMS = (12000 * 2 * 2); 26 static constexpr uint32_t MAX_ITEM_CAPACITY = (1000 * 10); 27 static constexpr uint32_t MAX_DATA_CAPACITY = (1000 * 10 * 10 * 10); 28 29 #define METADATA_PACKET_ALIGNMENT \ 30 MaxAlignment(MaxAlignment(DATA_ALIGNMENT, METADATA_ALIGNMENT), ITEM_ALIGNMENT) 31 32 namespace OHOS::Camera { 33 class CameraMetadata { 34 public: 35 CameraMetadata(size_t itemCapacity, size_t dataCapacity); 36 ~CameraMetadata(); 37 38 bool addEntry(uint32_t item, const void *data, size_t data_count); 39 bool updateEntry(uint32_t tag, const void *data, size_t data_count); 40 common_metadata_header_t *get(); 41 const common_metadata_header_t *get() const; 42 bool isValid() const; 43 44 private: 45 common_metadata_header_t *metadata_; 46 47 bool resize_add_metadata(uint32_t item, const void *data, size_t data_count); 48 void replace_metadata(common_metadata_header_t *newMetadata); 49 static uint32_t AlignTo(uint32_t val, uint32_t alignment); 50 static uint32_t MaxAlignment(uint32_t dataAlignment, uint32_t metadataAlignment); 51 static size_t CalculateCameraMetadataMemoryRequired(uint32_t itemCount, uint32_t dataCount); 52 static int UpdateameraMetadataItemSize(camera_metadata_item_entry_t *item, uint32_t dataCount, 53 common_metadata_header_t *dst, const void *data); 54 static int AddCameraMetadataItemVerify(common_metadata_header_t *dst, 55 uint32_t item, const void *data, size_t dataCount, uint32_t *dataType); 56 static int moveMetadataMemery(common_metadata_header_t *dst, 57 camera_metadata_item_entry_t *itemToDelete, size_t dataBytes); 58 static int copyMetadataMemory(common_metadata_header_t *dst, camera_metadata_item_entry_t *item, 59 size_t dataPayloadSize, const void *data); 60 61 public: 62 // Allocate a new camera metadata buffer and return the metadata header 63 static common_metadata_header_t *AllocateCameraMetadataBuffer(uint32_t item_capacity, uint32_t data_capacity); 64 65 // Is camera metadata item exist 66 static bool IsCameraMetadataItemExist(const common_metadata_header_t *src, uint32_t item); 67 68 // Find camera metadata item and fill the found item 69 static int FindCameraMetadataItem(const common_metadata_header_t *src, uint32_t item, 70 camera_metadata_item_t *metadataItem); 71 72 // Find camera metadata item index if the item exists 73 static int FindCameraMetadataItemIndex(const common_metadata_header_t *src, uint32_t item, uint32_t *index, 74 bool isPrintLog = false); 75 76 // Get camera metadata item name 77 static const char *GetCameraMetadataItemName(uint32_t item); 78 79 // Update camera metadata item and fill the updated item 80 static int UpdateCameraMetadataItem(common_metadata_header_t *dst, uint32_t item, const void *data, 81 uint32_t dataCount, camera_metadata_item_t *updatedItem); 82 83 // Update camera metadata item by index and fill the updated item 84 static int UpdateCameraMetadataItemByIndex(common_metadata_header_t *dst, uint32_t index, const void *data, 85 uint32_t dataCount, camera_metadata_item_t *updated_item); 86 87 // Add camera metadata item 88 static int AddCameraMetadataItem(common_metadata_header_t *dst, uint32_t item, const void *data, size_t dataCount); 89 90 // Delete camera metadata item 91 static int DeleteCameraMetadataItem(common_metadata_header_t *dst, uint32_t item); 92 93 // Delete camera metadata item by index 94 static int DeleteCameraMetadataItemByIndex(common_metadata_header_t *dst, uint32_t index); 95 96 // Free camera metadata buffer 97 static void FreeCameraMetadataBuffer(common_metadata_header_t *dst); 98 99 static std::string MetadataItemDump(const common_metadata_header_t *metadataHeader, uint32_t item); 100 101 static std::string FormatCameraMetadataToString(const common_metadata_header_t *metadataHeader); 102 103 // Internal use 104 static camera_metadata_item_entry_t *GetMetadataItems(const common_metadata_header_t *metadataHeader); 105 static uint8_t *GetMetadataData(const common_metadata_header_t *metadataHeader); 106 static int GetCameraMetadataItem(const common_metadata_header_t *src, uint32_t index, camera_metadata_item_t *item); 107 static uint32_t GetCameraMetadataItemCount(const common_metadata_header_t *metadata_header); 108 static uint32_t GetCameraMetadataItemCapacity(const common_metadata_header_t *metadata_header); 109 static uint32_t GetCameraMetadataDataSize(const common_metadata_header_t *metadata_header); 110 static int32_t CopyCameraMetadataItems(common_metadata_header_t *newMetadata, 111 const common_metadata_header_t *oldMetadata); 112 static int32_t CalculateCameraMetadataItemDataSize(uint32_t type, size_t data_count); 113 static int32_t GetCameraMetadataItemType(uint32_t item, uint32_t *data_type); 114 static common_metadata_header_t *FillCameraMetadata(common_metadata_header_t *buffer, size_t memoryRequired, 115 uint32_t itemCapacity, uint32_t dataCapacity); 116 static int32_t GetMetadataSection(uint32_t itemSection, uint32_t *section); 117 static int MetadataExpandItemMem(common_metadata_header_t *dst, camera_metadata_item_entry_t *item, 118 size_t oldItemSize); 119 static int32_t GetAllVendorTags(std::vector<vendorTag_t>& tagVec); 120 }; 121 } // namespace Camera 122 #endif /* CAMERA_METADATA_INFO_H */ 123