/* * HEIF codec. * Copyright (c) 2018 struktur AG, Dirk Farin <farin@struktur.de> * * This file is part of libheif. * * libheif is free software: you can redistribute it and/or modify * it under the terms of the GNU Lesser General Public License as * published by the Free Software Foundation, either version 3 of * the License, or (at your option) any later version. * * libheif is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public License * along with libheif. If not, see <http://www.gnu.org/licenses/>. */ #ifndef LIBHEIF_HEIF_LIMITS_H #define LIBHEIF_HEIF_LIMITS_H #if defined(HAVE_CONFIG_H) #include "config.h" #endif #if defined(HAVE_INTTYPES_H) #include <inttypes.h> #endif #if defined(HAVE_STDDEF_H) #include <stddef.h> #endif static const size_t MAX_CHILDREN_PER_BOX = 1024; static const int MAX_ILOC_ITEMS = 1024; static const int MAX_ILOC_EXTENTS_PER_ITEM = 32; static const int MAX_MEMORY_BLOCK_SIZE = 50*1024*1024; // 50 MB // Artificial limit to avoid allocating too much memory. static const int MAX_IMAGE_WIDTH = 16384; static const int MAX_IMAGE_HEIGHT = 16384; // Maximum nesting level of boxes in input files. // We put a limit on this to avoid unlimited stack usage by malicious input files. static const int MAX_BOX_NESTING_LEVEL = 20; static const int MAX_BOX_SIZE = 0x7FFFFFFF; // 2 GB #endif // LIBHEIF_HEIF_LIMITS_H