Free Palestine🇵🇸🇵🇸🇵🇸Cross platform super fast single header c++ library to get image size and format without loading/decoding. Support avif, bmp, cur, dds, gif, hdr (pic), heic (heif), icns, ico, j2k, jp2, jpeg (jpg), jpx, ktx, png, psd, qoi, tga, tiff (tif), webp ...
License: MIT License
in this jpeg file, there's a section with comment text (FF FE) of size 3 bytes, unfortunately, it seems that the minimum size of a section is 4 bytes, so the next iteration moves the cursor to the wrong place.
Currently if the likely_formats is not met, it goes on to search all other formats. Which may not be needed by the application.
We can make it into 3 stages:
likely_formats: Checks those first, which is a hint given by the programmer that this file is very likely to be in that format. Say the user gave a .png file, then the library can start parsing using the png parser.supported_formats: If likely_formats failed, it starts looking into the supported formats only, instead of looking into the entire map.must_be_one_of_likely_formats is false, then it starts checking against all other formats.It is also possible to do it in another way, which is we add a single optional format at the top stage, called very_likely_format, which is hinted to the library by the programmer that this format must be checked first, as it is very likely true. Then it can go in likely_formats to look if it wasn't that format.
IIUC it should be able to identify and read HDR files but running imageinfo https://github.com/KhronosGroup/glTF-Sample-Environments/blob/b710a9fe6bcdfb8965530ede36e8279c298261de/footprint_court.hdr gives error
- Error : Unrecognized image format
图像常用信息包括：格式、宽高、DPI及单位、色彩深度/色彩位数/通道位数（1、2、4、8、16），色彩通道（1、3、4，还有索引通道或者其它什么），色彩空间（黑白、索引、sRGB、cmyk等等），压缩方式及质量（仅部分格式）
元数据除了图像自带的Tag，还包括Exif，IPTC，XMP，JFIF / JFXX，ICC Profiles，Photoshop。
Exif信息是识别图像必须要读取的。Exit常用信息包括：宽、高、DPI及单位、色彩通道、通道位数、每像素通道数、色彩空间、原始日期、方向、GPS等等若干。
个人实践：图像格式、宽高像素、宽高DPI及单位、位数、通道数、色彩空间、压缩方式及质量、图像旋转方向、原始日期。这些11项是经常用到的，如果图像数据提供的话必须要能识别。
我现在用ImageMagick和metadata-extractor-dotnet来识别，前者优点是格式全，缺点是要读取全部图像数据，速度太慢。后者能识别各种格式的元数据，但是输出太全面了，外行也看不明白，没啥必要。
ImageInfo比较符合日常需求，识别的图像格式也足够。如果能识别图像格式的主要元数据就非常完美了。
当然，这是个慢功夫的活。
class RawDataReader {
public:
explicit RawDataReader(RawData data) : data_(data) {}
inline size_t size() const { return data_.length; }
inline void read(void *buf, off_t offset, size_t size) const { memcpy(buf, ((char *)data_.data) + offset, size); }
private:
RawData data_;
};
当我批量判断 时，read 函数 出现错误
0x00007FFA714FFD36 (vcruntime140d.dll)处(位于 Compress_test.exe 中)引发的异常: 0xC0000005: 读取位置 0x000001F6BA5397EE 时发生访问冲突。
我的调用如下
unsigned char* ALLImgData;
ALLImgData = new unsigned char[totalSize];
auto info = imageinfo::parseimageinfo::RawDataReader(imageinfo::RawData(ALLImgData, bufferSize));
Is it possible that a C# wrapper will be provided in the future?
Thank you for your excellent work
cmake -B build .
cmake --build build -- all
cmake --build build -- checkCmakelist.txt add：
set (CMAKE_C_COMPILER "/usr/local/bin/afl-clang-fast")
set (CMAKE_CXX_COMPILER "/usr/local/bin/afl-clang-fast++")
./imageinfo id02
READ memory access causes SEGV stack overflow.
ubuntu@ubuntu:~/Desktop/imageinfo/imageinfo/build$ ./imageinfo ../../build/output/default/crashes/id\:000002\,sig\:11\,src\:000007\,time\:76911\,execs\:21200\,op\:havoc\,rep\:16
AddressSanitizer:DEADLYSIGNAL
=================================================================
==3079903==ERROR: AddressSanitizer: SEGV on unknown address 0x6110010000bc (pc 0x555555583ae4 bp 0x7fffffffd7e0 sp 0x7fffffffd230 T0)
==3079903==The signal is caused by a READ memory access.
#0 0x555555583ae3 in {lambda(unsigned long, IIReadInterface&, long&, long&, std::vector<std::array<long, 2ul>, std::allocator<std::array<long, 2ul> > >&)#1}::operator()(unsigned long, IIReadInterface&, long&, long&, std::vector<std::array<long, 2ul>, std::allocator<std::array<long, 2ul> > >&) const (/home/ubuntu/Desktop/imageinfo/imageinfo/build/imageinfo+0x2fae3)
#1 0x5555555843c1 in _ZNSt17_Function_handlerIFbmR15IIReadInterfaceRlS2_RSt6vectorISt5arrayIlLm2EESaIS5_EEEUlmS1_S2_S2_S8_E_E9_M_invokeERKSt9_Any_dataOmS1_S2_S2_S8_ (/home/ubuntu/Desktop/imageinfo/imageinfo/build/imageinfo+0x303c1)
#2 0x55555557cf11 in main (/home/ubuntu/Desktop/imageinfo/imageinfo/build/imageinfo+0x28f11)
#3 0x7ffff7068082 in __libc_start_main ../csu/libc-start.c:308
#4 0x55555556adad in _start (/home/ubuntu/Desktop/imageinfo/imageinfo/build/imageinfo+0x16dad)
AddressSanitizer can not provide additional info.
SUMMARY: AddressSanitizer: SEGV (/home/ubuntu/Desktop/imageinfo/imageinfo/build/imageinfo+0x2fae3) in {lambda(unsigned long, IIReadInterface&, long&, long&, std::vector<std::array<long, 2ul>, std::allocator<std::array<long, 2ul> > >&)#1}::operator()(unsigned long, IIReadInterface&, long&, long&, std::vector<std::array<long, 2ul>, std::allocator<std::array<long, 2ul> > >&) const
==3079903==ABORTINGubuntu@ubuntu:~/Desktop/imageinfo/build$ gdb --args ./imageinfo output/default/crashes/id\:000002\,sig\:11\,src\:000007\,time\:76911\,execs\:21200\,op\:havoc\,rep\:16
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Reading symbols from ./imageinfo...
gdb-peda$ r output/default/crashes/id\:000002\,sig\:11\,src\:000007\,time\:76911\,execs\:21200\,op\:havoc\,rep\:16
Starting program: /home/ubuntu/Desktop/imageinfo/build/imageinfo output/default/crashes/id\:000002\,sig\:11\,src\:000007\,time\:76911\,execs\:21200\,op\:havoc\,rep\:16
Program received signal SIGSEGV, Segmentation fault.
[----------------------------------registers-----------------------------------]
RAX: 0x65cb60 --> 0x726c646821000000 ('')
RBX: 0x6
RCX: 0x100007c
RDX: 0x87
RSI: 0x4477a0 --> 0x0
RDI: 0x4477a0 --> 0x0
RBP: 0xf3000000
RSP: 0x7fffffffda10 --> 0x7fffffffda58 --> 0x65cb60 --> 0x726c646821000000 ('')
RIP: 0x4113d1 (<std::_Function_handler<bool (unsigned long, IIReadInterface&, long&, long&, std::vector<std::array<long, 2ul>, std::allocator<std::array<long, 2ul> > >&), $_0>::_M_invoke(std::_Any_data const&, unsigned long&&, IIReadInterface&, long&, long&, std::vector<std::array<long, 2ul>, std::allocator<std::array<long, 2ul> > >&)+2561>: mov esi,DWORD PTR [rax+rcx*1])
R8 : 0x1
R9 : 0x7fffffffda40 --> 0xf3
R10: 0x40456b --> 0x5f007465736d656d ('memset')
R11: 0x7ffff7c61be0 --> 0x65cc50 --> 0x1a3809
R12: 0x7fffffffdbd0 --> 0xffffffffffffffff
R13: 0xf0ffffe6
R14: 0x7fffffffdbd8 --> 0xffffffffffffffff
R15: 0x4457b0 --> 0x4477a0 --> 0x0
EFLAGS: 0x10206 (carry PARITY adjust zero sign trap INTERRUPT direction overflow)
[-------------------------------------code-------------------------------------]
0x4113c8 <std::_Function_handler<bool (unsigned long, IIReadInterface&, long&, long&, std::vector<std::array<long, 2ul>, std::allocator<std::array<long, 2ul> > >&), $_0>::_M_invoke(std::_Any_data const&, unsigned long&&, IIReadInterface&, long&, long&, std::vector<std::array<long, 2ul>, std::allocator<std::array<long, 2ul> > >&)+2552>: add bl,0x1
0x4113cb <std::_Function_handler<bool (unsigned long, IIReadInterface&, long&, long&, std::vector<std::array<long, 2ul>, std::allocator<std::array<long, 2ul> > >&), $_0>::_M_invoke(std::_Any_data const&, unsigned long&&, IIReadInterface&, long&, long&, std::vector<std::array<long, 2ul>, std::allocator<std::array<long, 2ul> > >&)+2555>: adc bl,0x0
0x4113ce <std::_Function_handler<bool (unsigned long, IIReadInterface&, long&, long&, std::vector<std::array<long, 2ul>, std::allocator<std::array<long, 2ul> > >&), $_0>::_M_invoke(std::_Any_data const&, unsigned long&&, IIReadInterface&, long&, long&, std::vector<std::array<long, 2ul>, std::allocator<std::array<long, 2ul> > >&)+2558>: mov BYTE PTR [rsi+rdx*1],bl
=> 0x4113d1 <std::_Function_handler<bool (unsigned long, IIReadInterface&, long&, long&, std::vector<std::array<long, 2ul>, std::allocator<std::array<long, 2ul> > >&), $_0>::_M_invoke(std::_Any_data const&, unsigned long&&, IIReadInterface&, long&, long&, std::vector<std::array<long, 2ul>, std::allocator<std::array<long, 2ul> > >&)+2561>: mov esi,DWORD PTR [rax+rcx*1]
0x4113d4 <std::_Function_handler<bool (unsigned long, IIReadInterface&, long&, long&, std::vector<std::array<long, 2ul>, std::allocator<std::array<long, 2ul> > >&), $_0>::_M_invoke(std::_Any_data const&, unsigned long&&, IIReadInterface&, long&, long&, std::vector<std::array<long, 2ul>, std::allocator<std::array<long, 2ul> > >&)+2564>: bswap esi
0x4113d6 <std::_Function_handler<bool (unsigned long, IIReadInterface&, long&, long&, std::vector<std::array<long, 2ul>, std::allocator<std::array<long, 2ul> > >&), $_0>::_M_invoke(std::_Any_data const&, unsigned long&&, IIReadInterface&, long&, long&, std::vector<std::array<long, 2ul>, std::allocator<std::array<long, 2ul> > >&)+2566>: cmp DWORD PTR [rax+rcx*1+0x4],0x70727069
0x4113de <std::_Function_handler<bool (unsigned long, IIReadInterface&, long&, long&, std::vector<std::array<long, 2ul>, std::allocator<std::array<long, 2ul> > >&), $_0>::_M_invoke(std::_Any_data const&, unsigned long&&, IIReadInterface&, long&, long&, std::vector<std::array<long, 2ul>, std::allocator<std::array<long, 2ul> > >&)+2574>:
jne 0x411358 <std::_Function_handler<bool (unsigned long, IIReadInterface&, long&, long&, std::vector<std::array<long, 2ul>, std::allocator<std::array<long, 2ul> > >&), $_0>::_M_invoke(std::_Any_data const&, unsigned long&&, IIReadInterface&, long&, long&, std::vector<std::array<long, 2ul>, std::allocator<std::array<long, 2ul> > >&)+2440>: jne 0x411358 <std::_Function_handler<bool (unsigned long, IIReadInterface&, long&, long&, std::vector<std::array<long, 2ul>, std::allocator<std::array<long, 2ul> > >&), $_0>::_M_invoke(std::_Any_data const&, unsigned long&&, IIReadInterface&, long&, long&, std::vector<std::array<long, 2ul>, std::allocator<std::array<long, 2ul> > >&)+2440>
0x4113e4 <std::_Function_handler<bool (unsigned long, IIReadInterface&, long&, long&, std::vector<std::array<long, 2ul>, std::allocator<std::array<long, 2ul> > >&), $_0>::_M_invoke(std::_Any_data const&, unsigned long&&, IIReadInterface&, long&, long&, std::vector<std::array<long, 2ul>, std::allocator<std::array<long, 2ul> > >&)+2580>:
jmp 0x41138d <std::_Function_handler<bool (unsigned long, IIReadInterface&, long&, long&, std::vector<std::array<long, 2ul>, std::allocator<std::array<long, 2ul> > >&), $_0>::_M_invoke(std::_Any_data const&, unsigned long&&, IIReadInterface&, long&, long&, std::vector<std::array<long, 2ul>, std::allocator<std::array<long, 2ul> > >&)+2493>: jmp 0x41138d <std::_Function_handler<bool (unsigned long, IIReadInterface&, long&, long&, std::vector<std::array<long, 2ul>, std::allocator<std::array<long, 2ul> > >&), $_0>::_M_invoke(std::_Any_data const&, unsigned long&&, IIReadInterface&, long&, long&, std::vector<std::array<long, 2ul>, std::allocator<std::array<long, 2ul> > >&)+2493>
[------------------------------------stack-------------------------------------]
0000| 0x7fffffffda10 --> 0x7fffffffda58 --> 0x65cb60 --> 0x726c646821000000 ('')
0008| 0x7fffffffda18 --> 0x8
0016| 0x7fffffffda20 --> 0x4
0024| 0x7fffffffda28 --> 0x0
0032| 0x7fffffffda30 --> 0x0
0040| 0x7fffffffda38 --> 0x0
0048| 0x7fffffffda40 --> 0xf3
0056| 0x7fffffffda48 --> 0x7ffff7b052f6 (<_IO_new_file_fopen+534>: mov rbx,rax)
[------------------------------------------------------------------------------]
Legend: code, data, rodata, value
Stopped reason: SIGSEGV
$_0::operator() (this=<optimized out>, length=0x417, ri=..., width=<optimized out>, height=<optimized out>, entrySizes=...) at /home/ubuntu/Desktop/imageinfo/imageinfo.hpp:498
498 uint32_t boxSize = buffer.readU32BE(offset); off_t offset = 0; // typedef long _off_t; off_t offset = 0;
off_t end = metaLength;
while (offset < end) {
uint32_t boxSize = buffer.readU32BE(offset); // uint32_t readU32BE;
if (buffer.cmpAnyOf(offset + 4, 4, {"iprp", "ipco"})) {
end = offset + boxSize;
offset += 8;
} else if (buffer.cmp(offset + 4, 4, "ispe")) {
width = buffer.readU32BE(offset + 12);
height = buffer.readU32BE(offset + 16);
return true;
} else {
offset += boxSize;
}
}
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