Robin Mills
4 years ago
committed by
GitHub
commit
9e2ac47cf9
@ -0,0 +1,170 @@
|
|||||||
|
// ***************************************************************** -*- C++ -*-
|
||||||
|
/*
|
||||||
|
* Copyright (C) 2021 Exiv2 authors
|
||||||
|
* This program is part of the Exiv2 distribution.
|
||||||
|
*
|
||||||
|
* This program is free software; you can redistribute it and/or
|
||||||
|
* modify it under the terms of the GNU General Public License
|
||||||
|
* as published by the Free Software Foundation; either version 2
|
||||||
|
* of the License, or (at your option) any later version.
|
||||||
|
*
|
||||||
|
* This program 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 General Public License for more details.
|
||||||
|
*
|
||||||
|
* You should have received a copy of the GNU General Public License
|
||||||
|
* along with this program; if not, write to the Free Software
|
||||||
|
* Foundation, Inc., 51 Franklin Street, 5th Floor, Boston, MA 02110-1301 USA.
|
||||||
|
*/
|
||||||
|
|
||||||
|
#pragma once
|
||||||
|
|
||||||
|
// *****************************************************************************
|
||||||
|
#include "exiv2lib_export.h"
|
||||||
|
|
||||||
|
// included header files
|
||||||
|
#include "image.hpp"
|
||||||
|
#include "iostream"
|
||||||
|
|
||||||
|
// *****************************************************************************
|
||||||
|
// namespace extensions
|
||||||
|
namespace Exiv2
|
||||||
|
{
|
||||||
|
EXIV2API bool enableBMFF(bool enable = true);
|
||||||
|
|
||||||
|
struct Iloc
|
||||||
|
{
|
||||||
|
Iloc(uint32_t ID = 0, uint32_t start = 0, uint32_t length = 0) : ID_(ID), start_(start), length_(length){};
|
||||||
|
virtual ~Iloc(){};
|
||||||
|
|
||||||
|
uint32_t ID_;
|
||||||
|
uint32_t start_;
|
||||||
|
uint32_t length_;
|
||||||
|
|
||||||
|
std::string toString() const;
|
||||||
|
}; // class Iloc
|
||||||
|
|
||||||
|
// *****************************************************************************
|
||||||
|
// class definitions
|
||||||
|
|
||||||
|
// Add Base Media File Format to the supported image formats
|
||||||
|
namespace ImageType
|
||||||
|
{
|
||||||
|
const int bmff = 19; //!< BMFF (bmff) image type (see class BMFF)
|
||||||
|
}
|
||||||
|
|
||||||
|
/*!
|
||||||
|
@brief Class to access BMFF images.
|
||||||
|
*/
|
||||||
|
class EXIV2API BmffImage : public Image
|
||||||
|
{
|
||||||
|
public:
|
||||||
|
//! @name Creators
|
||||||
|
//@{
|
||||||
|
/*!
|
||||||
|
@brief Constructor to open a BMFF image. Since the
|
||||||
|
constructor can not return a result, callers should check the
|
||||||
|
good() method after object construction to determine success
|
||||||
|
or failure.
|
||||||
|
@param io An auto-pointer that owns a BasicIo instance used for
|
||||||
|
reading and writing image metadata. \b Important: The constructor
|
||||||
|
takes ownership of the passed in BasicIo instance through the
|
||||||
|
auto-pointer. Callers should not continue to use the BasicIo
|
||||||
|
instance after it is passed to this method. Use the Image::io()
|
||||||
|
method to get a temporary reference.
|
||||||
|
@param create Specifies if an existing image should be read (false)
|
||||||
|
or if a new file should be created (true).
|
||||||
|
*/
|
||||||
|
BmffImage(BasicIo::AutoPtr io, bool create);
|
||||||
|
//@}
|
||||||
|
|
||||||
|
//@{
|
||||||
|
/*!
|
||||||
|
@brief parse embedded tiff file (Exif metadata)
|
||||||
|
@param root_tag root of parse tree Tag::root, Tag::cmt2 etc.
|
||||||
|
@param length tiff block length
|
||||||
|
@param start offset in file (default, io_->tell())
|
||||||
|
@
|
||||||
|
*/
|
||||||
|
void parseTiff(uint32_t root_tag, uint32_t length);
|
||||||
|
void parseTiff(uint32_t root_tag, uint32_t length,uint32_t start);
|
||||||
|
//@}
|
||||||
|
|
||||||
|
//@{
|
||||||
|
/*!
|
||||||
|
@brief parse embedded xmp/xml
|
||||||
|
@param length xmp block length
|
||||||
|
@param start offset in file
|
||||||
|
@
|
||||||
|
*/
|
||||||
|
void parseXmp(uint32_t length,uint32_t start);
|
||||||
|
//@}
|
||||||
|
|
||||||
|
//! @name Manipulators
|
||||||
|
//@{
|
||||||
|
void readMetadata() /* override */;
|
||||||
|
void writeMetadata() /* override */;
|
||||||
|
void setComment(const std::string& comment) /* override */;
|
||||||
|
void printStructure(std::ostream& out, Exiv2::PrintStructureOption option,int depth);
|
||||||
|
//@}
|
||||||
|
|
||||||
|
//! @name Accessors
|
||||||
|
//@{
|
||||||
|
std::string mimeType() const /* override */;
|
||||||
|
int pixelWidth() const;
|
||||||
|
int pixelHeight() const;
|
||||||
|
//@}
|
||||||
|
|
||||||
|
Exiv2::ByteOrder endian_ ;
|
||||||
|
|
||||||
|
private:
|
||||||
|
void openOrThrow();
|
||||||
|
/*!
|
||||||
|
@brief recursiveBoxHandler
|
||||||
|
@throw Error if we visit a box more than once
|
||||||
|
@return address of next box
|
||||||
|
@warning This function should only be called by readMetadata()
|
||||||
|
*/
|
||||||
|
long boxHandler(std::ostream& out=std::cout, Exiv2::PrintStructureOption option=kpsNone,int depth = 0);
|
||||||
|
std::string indent(int i)
|
||||||
|
{
|
||||||
|
return std::string(2*i,' ');
|
||||||
|
}
|
||||||
|
|
||||||
|
uint32_t fileType_;
|
||||||
|
std::set<uint64_t> visits_;
|
||||||
|
uint64_t visits_max_;
|
||||||
|
uint16_t unknownID_; // 0xffff
|
||||||
|
uint16_t exifID_;
|
||||||
|
uint16_t xmpID_;
|
||||||
|
std::map<uint32_t, Iloc> ilocs_;
|
||||||
|
bool bReadMetadata_;
|
||||||
|
//@}
|
||||||
|
|
||||||
|
/*!
|
||||||
|
@brief box utilities
|
||||||
|
*/
|
||||||
|
std::string toAscii(long n);
|
||||||
|
std::string boxName(uint32_t box);
|
||||||
|
bool superBox(uint32_t box);
|
||||||
|
bool fullBox(uint32_t box);
|
||||||
|
std::string uuidName(Exiv2::DataBuf& uuid);
|
||||||
|
|
||||||
|
}; // class BmffImage
|
||||||
|
|
||||||
|
// *****************************************************************************
|
||||||
|
// template, inline and free functions
|
||||||
|
|
||||||
|
// These could be static private functions on Image subclasses but then
|
||||||
|
// ImageFactory needs to be made a friend.
|
||||||
|
/*!
|
||||||
|
@brief Create a new BMFF instance and return an auto-pointer to it.
|
||||||
|
Caller owns the returned object and the auto-pointer ensures that
|
||||||
|
it will be deleted.
|
||||||
|
*/
|
||||||
|
EXIV2API Image::AutoPtr newBmffInstance(BasicIo::AutoPtr io, bool create);
|
||||||
|
|
||||||
|
//! Check if the file iIo is a BMFF image.
|
||||||
|
EXIV2API bool isBmffType(BasicIo& iIo, bool advance);
|
||||||
|
} // namespace Exiv2
|
||||||
@ -0,0 +1,608 @@
|
|||||||
|
// ***************************************************************** -*- C++ -*-
|
||||||
|
/*
|
||||||
|
* Copyright (C) 2021 Exiv2 authors
|
||||||
|
* This program is part of the Exiv2 distribution.
|
||||||
|
*
|
||||||
|
* This program is free software; you can redistribute it and/or
|
||||||
|
* modify it under the terms of the GNU General Public License
|
||||||
|
* as published by the Free Software Foundation; either version 2
|
||||||
|
* of the License, or (at your option) any later version.
|
||||||
|
*
|
||||||
|
* This program 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 General Public License for more details.
|
||||||
|
*
|
||||||
|
* You should have received a copy of the GNU General Public License
|
||||||
|
* along with this program; if not, write to the Free Software
|
||||||
|
* Foundation, Inc., 51 Franklin Street, 5th Floor, Boston, MA 02110-1301 USA.
|
||||||
|
*/
|
||||||
|
|
||||||
|
// *****************************************************************************
|
||||||
|
|
||||||
|
// #define EXIV2_DEBUG_MESSAGES
|
||||||
|
|
||||||
|
// included header files
|
||||||
|
#include "bmffimage.hpp"
|
||||||
|
|
||||||
|
#include "basicio.hpp"
|
||||||
|
#include "config.h"
|
||||||
|
#include "error.hpp"
|
||||||
|
#include "futils.hpp"
|
||||||
|
#include "image.hpp"
|
||||||
|
#include "image_int.hpp"
|
||||||
|
#include "safe_op.hpp"
|
||||||
|
#include "tiffimage.hpp"
|
||||||
|
#include "tiffimage_int.hpp"
|
||||||
|
#include "types.hpp"
|
||||||
|
#include "unused.h"
|
||||||
|
|
||||||
|
// + standard includes
|
||||||
|
#include <cassert>
|
||||||
|
#include <cstdio>
|
||||||
|
#include <cstring>
|
||||||
|
#include <iostream>
|
||||||
|
#include <string>
|
||||||
|
|
||||||
|
struct BmffBoxHeader
|
||||||
|
{
|
||||||
|
uint32_t length;
|
||||||
|
uint32_t type;
|
||||||
|
};
|
||||||
|
|
||||||
|
#define TAG_ftyp 0x66747970 /**< "ftyp" File type box */
|
||||||
|
#define TAG_avif 0x61766966 /**< "avif" AVIF */
|
||||||
|
#define TAG_heic 0x68656963 /**< "heic" HEIC */
|
||||||
|
#define TAG_heif 0x68656966 /**< "heif" HEIF */
|
||||||
|
#define TAG_crx 0x63727820 /**< "crx " Canon CR3 */
|
||||||
|
#define TAG_moov 0x6d6f6f76 /**< "moov" Movie */
|
||||||
|
#define TAG_meta 0x6d657461 /**< "meta" Metadata */
|
||||||
|
#define TAG_mdat 0x6d646174 /**< "mdat" Media data */
|
||||||
|
#define TAG_uuid 0x75756964 /**< "uuid" UUID */
|
||||||
|
#define TAG_dinf 0x64696e66 /**< "dinf" Data information */
|
||||||
|
#define TAG_iprp 0x69707270 /**< "iprp" Item properties */
|
||||||
|
#define TAG_ipco 0x6970636f /**< "ipco" Item property container */
|
||||||
|
#define TAG_iinf 0x69696e66 /**< "iinf" Item info */
|
||||||
|
#define TAG_iloc 0x696c6f63 /**< "iloc" Item location */
|
||||||
|
#define TAG_ispe 0x69737065 /**< "ispe" Image spatial extents */
|
||||||
|
#define TAG_infe 0x696e6665 /**< "infe" Item Info Extention */
|
||||||
|
#define TAG_ipma 0x69706d61 /**< "ipma" Item Property Association */
|
||||||
|
#define TAG_cmt1 0x434d5431 /**< "CMT1" ifd0Id */
|
||||||
|
#define TAG_cmt2 0x434D5432 /**< "CMD2" exifID */
|
||||||
|
#define TAG_cmt3 0x434D5433 /**< "CMT3" canonID */
|
||||||
|
#define TAG_cmt4 0x434D5434 /**< "CMT4" gpsID */
|
||||||
|
#define TAG_colr 0x636f6c72 /**< "colr" */
|
||||||
|
|
||||||
|
// *****************************************************************************
|
||||||
|
// class member definitions
|
||||||
|
namespace Exiv2
|
||||||
|
{
|
||||||
|
static bool enabled = false;
|
||||||
|
|
||||||
|
EXIV2API bool enableBMFF(bool enable)
|
||||||
|
{
|
||||||
|
#ifdef EXV_ENABLE_BMFF
|
||||||
|
enabled = enable;
|
||||||
|
return true;
|
||||||
|
#else
|
||||||
|
UNUSED(enable);
|
||||||
|
return false;
|
||||||
|
#endif // EXV_ENABLE_BMFF
|
||||||
|
}
|
||||||
|
|
||||||
|
std::string Iloc::toString() const
|
||||||
|
{
|
||||||
|
return Internal::stringFormat("ID = %u from,length = %u,%u", ID_, start_, length_);
|
||||||
|
}
|
||||||
|
|
||||||
|
BmffImage::BmffImage(BasicIo::AutoPtr io, bool /* create */)
|
||||||
|
: Image(ImageType::bmff, mdExif | mdIptc | mdXmp, io)
|
||||||
|
, endian_(Exiv2::bigEndian)
|
||||||
|
{
|
||||||
|
pixelWidth_ = 0;
|
||||||
|
pixelHeight_ = 0;
|
||||||
|
bReadMetadata_ = false;
|
||||||
|
} // BmffImage::BmffImage
|
||||||
|
|
||||||
|
std::string BmffImage::toAscii(long n)
|
||||||
|
{
|
||||||
|
const char* p = (const char*)&n;
|
||||||
|
std::string result;
|
||||||
|
for (int i = 0; i < 4; i++) {
|
||||||
|
char c = p[isBigEndianPlatform() ? i : (3 - i)];
|
||||||
|
result += (32<=c && c<127) ? c // only allow 7-bit printable ascii
|
||||||
|
: c==0 ? '_' // show 0 as _
|
||||||
|
: '.' ; // others .
|
||||||
|
}
|
||||||
|
return result;
|
||||||
|
}
|
||||||
|
|
||||||
|
bool BmffImage::superBox(uint32_t box)
|
||||||
|
{
|
||||||
|
return box == TAG_moov || box == TAG_dinf || box == TAG_iprp || box == TAG_ipco || box == TAG_meta ||
|
||||||
|
box == TAG_iinf || box == TAG_iloc;
|
||||||
|
}
|
||||||
|
|
||||||
|
bool BmffImage::fullBox(uint32_t box)
|
||||||
|
{
|
||||||
|
return box == TAG_meta || box == TAG_iinf || box == TAG_iloc;
|
||||||
|
}
|
||||||
|
|
||||||
|
std::string BmffImage::mimeType() const
|
||||||
|
{
|
||||||
|
switch (fileType_) {
|
||||||
|
case TAG_avif:
|
||||||
|
return "image/avif";
|
||||||
|
case TAG_heic:
|
||||||
|
case TAG_heif:
|
||||||
|
return "image/heif";
|
||||||
|
case TAG_crx:
|
||||||
|
return "image/x-canon-cr3";
|
||||||
|
default:
|
||||||
|
return "image/generic";
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
int BmffImage::pixelWidth() const
|
||||||
|
{
|
||||||
|
ExifData::const_iterator imageWidth = exifData_.findKey(Exiv2::ExifKey("Exif.Photo.PixelXDimension"));
|
||||||
|
if (imageWidth != exifData_.end() && imageWidth->count() > 0) {
|
||||||
|
return imageWidth->toLong();
|
||||||
|
}
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
|
|
||||||
|
int BmffImage::pixelHeight() const
|
||||||
|
{
|
||||||
|
ExifData::const_iterator imageHeight = exifData_.findKey(Exiv2::ExifKey("Exif.Photo.PixelYDimension"));
|
||||||
|
if (imageHeight != exifData_.end() && imageHeight->count() > 0) {
|
||||||
|
return imageHeight->toLong();
|
||||||
|
}
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
|
|
||||||
|
std::string BmffImage::uuidName(Exiv2::DataBuf& uuid)
|
||||||
|
{
|
||||||
|
const char* uuidCano = "\x85\xC0\xB6\x87\x82\xF\x11\xE0\x81\x11\xF4\xCE\x46\x2B\x6A\x48";
|
||||||
|
const char* uuidXmp = "\xBE\x7A\xCF\xCB\x97\xA9\x42\xE8\x9C\x71\x99\x94\x91\xE3\xAF\xAC";
|
||||||
|
const char* uuidCanp = "\xEA\xF4\x2B\x5E\x1C\x98\x4B\x88\xB9\xFB\xB7\xDC\x40\x6E\x4D\x16";
|
||||||
|
const char* result = std::memcmp(uuid.pData_, uuidCano, 16) == 0 ? "cano"
|
||||||
|
: std::memcmp(uuid.pData_, uuidXmp, 16) == 0 ? "xmp"
|
||||||
|
: std::memcmp(uuid.pData_, uuidCanp, 16) == 0 ? "canp"
|
||||||
|
: "";
|
||||||
|
return result;
|
||||||
|
}
|
||||||
|
|
||||||
|
long BmffImage::boxHandler(std::ostream& out /* = std::cout*/ , Exiv2::PrintStructureOption option /* = kpsNone */,int depth /* =0 */)
|
||||||
|
{
|
||||||
|
long result = (long)io_->size();
|
||||||
|
long address = (long)io_->tell();
|
||||||
|
// never visit a box twice!
|
||||||
|
if ( depth == 0 ) visits_.clear();
|
||||||
|
if (visits_.find(address) != visits_.end() || visits_.size() > visits_max_) {
|
||||||
|
throw Error(kerCorruptedMetadata);
|
||||||
|
}
|
||||||
|
visits_.insert(address);
|
||||||
|
|
||||||
|
bool bTrace = option == kpsBasic || option == kpsRecursive ;
|
||||||
|
#ifdef EXIV2_DEBUG_MESSAGES
|
||||||
|
bTrace = true ;
|
||||||
|
#endif
|
||||||
|
|
||||||
|
BmffBoxHeader box = {0, 0};
|
||||||
|
if (io_->read((byte*)&box, sizeof(box)) != sizeof(box))
|
||||||
|
return result;
|
||||||
|
|
||||||
|
box.length = getLong((byte*)&box.length, endian_);
|
||||||
|
box.type = getLong((byte*)&box.type, endian_);
|
||||||
|
bool bLF = true;
|
||||||
|
|
||||||
|
if ( bTrace ) {
|
||||||
|
bLF = true;
|
||||||
|
out << indent(depth) << "Exiv2::BmffImage::boxHandler: " << toAscii(box.type)
|
||||||
|
<< Internal::stringFormat(" %8ld->%u ", address, box.length);
|
||||||
|
}
|
||||||
|
|
||||||
|
if (box.length == 1) {
|
||||||
|
DataBuf data(8);
|
||||||
|
io_->read(data.pData_, data.size_);
|
||||||
|
result = (long) getULongLong(data.pData_, endian_);
|
||||||
|
// sanity check
|
||||||
|
if (result < 8 || result+address > (long)io_->size()) {
|
||||||
|
result = (long)io_->size();
|
||||||
|
box.length = result;
|
||||||
|
} else {
|
||||||
|
box.length = (long) (io_->size() - address);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
// read data in box and restore file position
|
||||||
|
long restore = io_->tell();
|
||||||
|
DataBuf data(box.length - 8);
|
||||||
|
io_->read(data.pData_, data.size_);
|
||||||
|
io_->seek(restore, BasicIo::beg);
|
||||||
|
|
||||||
|
uint32_t skip = 0; // read position in data.pData_
|
||||||
|
uint8_t version = 0;
|
||||||
|
uint32_t flags = 0;
|
||||||
|
|
||||||
|
if (fullBox(box.type)) {
|
||||||
|
flags = getLong(data.pData_ + skip, endian_); // version/flags
|
||||||
|
version = (int8_t)flags >> 24;
|
||||||
|
version &= 0x00ffffff;
|
||||||
|
skip += 4;
|
||||||
|
}
|
||||||
|
|
||||||
|
switch (box.type) {
|
||||||
|
case TAG_ftyp: {
|
||||||
|
fileType_ = getLong(data.pData_, endian_);
|
||||||
|
if ( bTrace ) {
|
||||||
|
out << "brand: " << toAscii(fileType_);
|
||||||
|
}
|
||||||
|
} break;
|
||||||
|
|
||||||
|
// 8.11.6.1
|
||||||
|
case TAG_iinf: {
|
||||||
|
if ( bTrace ) {
|
||||||
|
out << std::endl;
|
||||||
|
bLF = false;
|
||||||
|
}
|
||||||
|
|
||||||
|
int n = getShort(data.pData_ + skip, endian_);
|
||||||
|
skip += 2;
|
||||||
|
|
||||||
|
io_->seek(skip, BasicIo::cur);
|
||||||
|
while (n-- > 0) {
|
||||||
|
io_->seek(boxHandler(out,option,depth + 1), BasicIo::beg);
|
||||||
|
}
|
||||||
|
} break;
|
||||||
|
|
||||||
|
// 8.11.6.2
|
||||||
|
case TAG_infe: { // .__._.__hvc1_ 2 0 0 1 0 1 0 0 104 118 99 49 0
|
||||||
|
/* getLong (data.pData_+skip,endian_) ; */ skip += 4;
|
||||||
|
uint16_t ID = getShort(data.pData_ + skip, endian_);
|
||||||
|
skip += 2;
|
||||||
|
/* getShort(data.pData_+skip,endian_) ; */ skip += 2; // protection
|
||||||
|
std::string id;
|
||||||
|
std::string name((const char*)data.pData_ + skip);
|
||||||
|
if ( !name.find("Exif") ) { // "Exif" or "ExifExif"
|
||||||
|
exifID_ = ID;
|
||||||
|
id=" *** Exif ***";
|
||||||
|
} else if ( !name.find("mime\0xmp") || !name.find("mime\0application/rdf+xml") ) {
|
||||||
|
xmpID_ = ID;
|
||||||
|
id=" *** XMP ***";
|
||||||
|
}
|
||||||
|
if ( bTrace ) {
|
||||||
|
out << Internal::stringFormat("ID = %3d ", ID) << name << " " << id;
|
||||||
|
}
|
||||||
|
} break;
|
||||||
|
|
||||||
|
case TAG_moov:
|
||||||
|
case TAG_iprp:
|
||||||
|
case TAG_ipco:
|
||||||
|
case TAG_meta: {
|
||||||
|
if ( bTrace ) {
|
||||||
|
out << std::endl;
|
||||||
|
bLF = false;
|
||||||
|
}
|
||||||
|
io_->seek(skip, BasicIo::cur);
|
||||||
|
while ((long)io_->tell() < (long)(address + box.length)) {
|
||||||
|
io_->seek(boxHandler(out,option,depth + 1), BasicIo::beg);
|
||||||
|
}
|
||||||
|
// post-process meta box to recover Exif and XMP
|
||||||
|
if (box.type == TAG_meta) {
|
||||||
|
if ( ilocs_.find(exifID_) != ilocs_.end()) {
|
||||||
|
const Iloc& iloc = ilocs_.find(exifID_)->second;
|
||||||
|
if ( bTrace ) {
|
||||||
|
out << indent(depth) << "Exiv2::BMFF Exif: " << iloc.toString() << std::endl;
|
||||||
|
}
|
||||||
|
parseTiff(Internal::Tag::root,iloc.length_,iloc.start_);
|
||||||
|
}
|
||||||
|
if ( ilocs_.find(xmpID_) != ilocs_.end()) {
|
||||||
|
const Iloc& iloc = ilocs_.find(xmpID_)->second;
|
||||||
|
if ( bTrace ) {
|
||||||
|
out << indent(depth) << "Exiv2::BMFF XMP: " << iloc.toString() << std::endl;
|
||||||
|
}
|
||||||
|
parseXmp(iloc.length_,iloc.start_);
|
||||||
|
}
|
||||||
|
ilocs_.clear() ;
|
||||||
|
}
|
||||||
|
} break;
|
||||||
|
|
||||||
|
// 8.11.3.1
|
||||||
|
case TAG_iloc: {
|
||||||
|
uint8_t u = data.pData_[skip++];
|
||||||
|
uint16_t offsetSize = u >> 4;
|
||||||
|
uint16_t lengthSize = u & 0xF;
|
||||||
|
#if 0
|
||||||
|
uint16_t indexSize = 0 ;
|
||||||
|
u = data.pData_[skip++];
|
||||||
|
if ( version == 1 || version == 2 ) {
|
||||||
|
indexSize = u & 0xF ;
|
||||||
|
}
|
||||||
|
#else
|
||||||
|
skip++;
|
||||||
|
#endif
|
||||||
|
uint32_t itemCount = version < 2 ? getShort(data.pData_ + skip, endian_)
|
||||||
|
: getLong(data.pData_ + skip, endian_);
|
||||||
|
skip += version < 2 ? 2 : 4;
|
||||||
|
if (itemCount && itemCount < box.length / 14 && offsetSize == 4 && lengthSize == 4 &&
|
||||||
|
((box.length - 16) % itemCount) == 0) {
|
||||||
|
if ( bTrace ) {
|
||||||
|
out << std::endl;
|
||||||
|
bLF = false;
|
||||||
|
}
|
||||||
|
uint32_t step = (box.length - 16) / itemCount; // length of data per item.
|
||||||
|
uint32_t base = skip;
|
||||||
|
for (uint32_t i = 0; i < itemCount; i++) {
|
||||||
|
skip = base + i * step; // move in 14, 16 or 18 byte steps
|
||||||
|
uint32_t ID = version > 2 ? getLong(data.pData_ + skip, endian_)
|
||||||
|
: getShort(data.pData_ + skip, endian_);
|
||||||
|
uint32_t offset = step==14 || step==16 ? getLong(data.pData_ + skip + step - 8, endian_)
|
||||||
|
: step== 18 ? getLong(data.pData_ + skip + 4, endian_)
|
||||||
|
: 0 ;
|
||||||
|
|
||||||
|
uint32_t ldata = getLong(data.pData_ + skip + step - 4, endian_);
|
||||||
|
if ( bTrace ) {
|
||||||
|
out << indent(depth)
|
||||||
|
<< Internal::stringFormat("%8ld | %8u | ID | %4u | %6u,%6u", address + skip, step,
|
||||||
|
ID, offset, ldata)
|
||||||
|
<< std::endl;
|
||||||
|
}
|
||||||
|
// save data for post-processing in meta box
|
||||||
|
if ( offset && ldata && ID != unknownID_ ) {
|
||||||
|
ilocs_[ID] = Iloc(ID, offset, ldata);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
} break;
|
||||||
|
|
||||||
|
case TAG_ispe: {
|
||||||
|
skip += 4;
|
||||||
|
int width = (int)getLong(data.pData_ + skip, endian_);
|
||||||
|
skip += 4;
|
||||||
|
int height = (int)getLong(data.pData_ + skip, endian_);
|
||||||
|
skip += 4;
|
||||||
|
if ( bTrace ) {
|
||||||
|
out << "pixelWidth_, pixelHeight_ = " << Internal::stringFormat("%d, %d", width, height);
|
||||||
|
}
|
||||||
|
// HEIC files can have multiple ispe records
|
||||||
|
// Store largest width/height
|
||||||
|
if (width > pixelWidth_ && height > pixelHeight_) {
|
||||||
|
pixelWidth_ = width;
|
||||||
|
pixelHeight_ = height;
|
||||||
|
}
|
||||||
|
} break;
|
||||||
|
|
||||||
|
// 12.1.5.2
|
||||||
|
case TAG_colr: {
|
||||||
|
if ( data.size_ >= (long) (skip+4+sizeof(box)) ) { // .____.HLino..__mntrR 2 0 0 0 0 12 72 76 105 110 111 2 16 ...
|
||||||
|
// https://www.ics.uci.edu/~dan/class/267/papers/jpeg2000.pdf
|
||||||
|
uint8_t meth = data.pData_[skip+0];
|
||||||
|
uint8_t prec = data.pData_[skip+1];
|
||||||
|
uint8_t approx = data.pData_[skip+2];
|
||||||
|
std::string colour_type = std::string((char*)data.pData_,4) ;
|
||||||
|
skip+=4;
|
||||||
|
if ( colour_type == "rICC" || colour_type == "prof" ) {
|
||||||
|
DataBuf profile(data.pData_+skip,data.size_-skip);
|
||||||
|
setIccProfile(profile);
|
||||||
|
} else if ( meth == 2 && prec == 0 && approx == 0 ) {
|
||||||
|
// JP2000 files have a 3 byte head // 2 0 0 icc......
|
||||||
|
skip -= 1 ;
|
||||||
|
DataBuf profile(data.pData_+skip,data.size_-skip);
|
||||||
|
setIccProfile(profile);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
} break;
|
||||||
|
|
||||||
|
case TAG_uuid: {
|
||||||
|
DataBuf uuid(16);
|
||||||
|
io_->read(uuid.pData_, uuid.size_);
|
||||||
|
std::string name = uuidName(uuid);
|
||||||
|
if ( bTrace ) {
|
||||||
|
out << " uuidName " << name << std::endl;
|
||||||
|
bLF = false;
|
||||||
|
}
|
||||||
|
if (name == "cano") {
|
||||||
|
while ((long)io_->tell() < (long)(address + box.length)) {
|
||||||
|
io_->seek(boxHandler(out,option,depth + 1), BasicIo::beg);
|
||||||
|
}
|
||||||
|
} else if ( name == "xmp" ) {
|
||||||
|
parseXmp(box.length,io_->tell());
|
||||||
|
}
|
||||||
|
} break;
|
||||||
|
|
||||||
|
case TAG_cmt1:
|
||||||
|
parseTiff(Internal::Tag::root, box.length);
|
||||||
|
break;
|
||||||
|
case TAG_cmt2:
|
||||||
|
parseTiff(Internal::Tag::cmt2, box.length);
|
||||||
|
break;
|
||||||
|
case TAG_cmt3:
|
||||||
|
parseTiff(Internal::Tag::cmt3, box.length);
|
||||||
|
break;
|
||||||
|
case TAG_cmt4:
|
||||||
|
parseTiff(Internal::Tag::cmt4, box.length);
|
||||||
|
break;
|
||||||
|
|
||||||
|
default: break ; /* do nothing */
|
||||||
|
}
|
||||||
|
if ( bLF&& bTrace) out << std::endl;
|
||||||
|
|
||||||
|
// return address of next box
|
||||||
|
result = static_cast<long>(address + box.length);
|
||||||
|
|
||||||
|
return result;
|
||||||
|
}
|
||||||
|
|
||||||
|
void BmffImage::parseTiff(uint32_t root_tag, uint32_t length,uint32_t start)
|
||||||
|
{
|
||||||
|
// read and parse exif data
|
||||||
|
long restore = io_->tell();
|
||||||
|
DataBuf exif(length);
|
||||||
|
io_->seek(start,BasicIo::beg);
|
||||||
|
if ( exif.size_ > 8 && io_->read(exif.pData_,exif.size_) == exif.size_ ) {
|
||||||
|
// hunt for "II" or "MM"
|
||||||
|
long eof = 0xffffffff; // impossible value for punt
|
||||||
|
long punt = eof;
|
||||||
|
for ( long i = 0 ; i < exif.size_ -8 && punt==eof ; i+=2) {
|
||||||
|
if ( exif.pData_[i] == exif.pData_[i+1] )
|
||||||
|
if ( exif.pData_[i] == 'I' || exif.pData_[i] == 'M' )
|
||||||
|
punt = i;
|
||||||
|
}
|
||||||
|
if ( punt != eof ) {
|
||||||
|
Internal::TiffParserWorker::decode(exifData(), iptcData(), xmpData(),
|
||||||
|
exif.pData_+punt, exif.size_-punt, root_tag,
|
||||||
|
Internal::TiffMapping::findDecoder);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
io_->seek(restore,BasicIo::beg);
|
||||||
|
}
|
||||||
|
|
||||||
|
void BmffImage::parseTiff(uint32_t root_tag, uint32_t length)
|
||||||
|
{
|
||||||
|
if (length > 8) {
|
||||||
|
DataBuf data(length - 8);
|
||||||
|
long bufRead = io_->read(data.pData_, data.size_);
|
||||||
|
|
||||||
|
if (io_->error())
|
||||||
|
throw Error(kerFailedToReadImageData);
|
||||||
|
if (bufRead != data.size_)
|
||||||
|
throw Error(kerInputDataReadFailed);
|
||||||
|
|
||||||
|
Internal::TiffParserWorker::decode(exifData(), iptcData(), xmpData(),
|
||||||
|
data.pData_, data.size_, root_tag,
|
||||||
|
Internal::TiffMapping::findDecoder);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
void BmffImage::parseXmp(uint32_t length,uint32_t start)
|
||||||
|
{
|
||||||
|
if (length > 8) {
|
||||||
|
long restore = io_->tell() ;
|
||||||
|
io_->seek(start,BasicIo::beg);
|
||||||
|
|
||||||
|
DataBuf xmp(length+1);
|
||||||
|
xmp.pData_[length]=0 ; // ensure xmp is null terminated!
|
||||||
|
if ( io_->read(xmp.pData_, length) != length )
|
||||||
|
throw Error(kerInputDataReadFailed);
|
||||||
|
if ( io_->error() )
|
||||||
|
throw Error(kerFailedToReadImageData);
|
||||||
|
try {
|
||||||
|
Exiv2::XmpParser::decode(xmpData(),std::string((char*)xmp.pData_));
|
||||||
|
} catch (...) {
|
||||||
|
throw Error(kerFailedToReadImageData);
|
||||||
|
}
|
||||||
|
|
||||||
|
io_->seek(restore,BasicIo::beg);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
void BmffImage::setComment(const std::string& /*comment*/)
|
||||||
|
{
|
||||||
|
// bmff files are read-only
|
||||||
|
throw(Error(kerInvalidSettingForImage, "Image comment", "BMFF"));
|
||||||
|
} // BmffImage::setComment
|
||||||
|
|
||||||
|
void BmffImage::openOrThrow()
|
||||||
|
{
|
||||||
|
if (io_->open() != 0) {
|
||||||
|
throw Error(kerDataSourceOpenFailed, io_->path(), strError());
|
||||||
|
}
|
||||||
|
// Ensure that this is the correct image type
|
||||||
|
if (!isBmffType(*io_, false)) {
|
||||||
|
if (io_->error() || io_->eof())
|
||||||
|
throw Error(kerFailedToReadImageData);
|
||||||
|
throw Error(kerNotAnImage, "BMFF");
|
||||||
|
}
|
||||||
|
} // Bmff::openOrThrow();
|
||||||
|
|
||||||
|
void BmffImage::readMetadata()
|
||||||
|
{
|
||||||
|
openOrThrow();
|
||||||
|
IoCloser closer(*io_);
|
||||||
|
|
||||||
|
clearMetadata();
|
||||||
|
ilocs_.clear();
|
||||||
|
visits_max_ = io_->size() / 16;
|
||||||
|
unknownID_ = 0xffff;
|
||||||
|
exifID_ = unknownID_;
|
||||||
|
|
||||||
|
long address = 0;
|
||||||
|
while (address < (long)io_->size()) {
|
||||||
|
io_->seek(address, BasicIo::beg);
|
||||||
|
address = boxHandler(std::cout,kpsNone);
|
||||||
|
}
|
||||||
|
bReadMetadata_ = true;
|
||||||
|
} // BmffImage::readMetadata
|
||||||
|
|
||||||
|
void BmffImage::printStructure(std::ostream& out, Exiv2::PrintStructureOption option,int depth)
|
||||||
|
{
|
||||||
|
if ( !bReadMetadata_ ) readMetadata();
|
||||||
|
|
||||||
|
switch (option) {
|
||||||
|
default: break; // do nothing
|
||||||
|
|
||||||
|
case kpsIccProfile : {
|
||||||
|
out.write((const char*)iccProfile_.pData_,iccProfile_.size_);
|
||||||
|
} break;
|
||||||
|
|
||||||
|
#ifdef EXV_HAVE_XMP_TOOLKIT
|
||||||
|
case kpsXMP : {
|
||||||
|
std::string xmp;
|
||||||
|
if ( Exiv2::XmpParser::encode(xmp, xmpData()) ) {
|
||||||
|
throw Exiv2::Error(Exiv2::kerErrorMessage, "Failed to serialize XMP data");
|
||||||
|
}
|
||||||
|
out << xmp;
|
||||||
|
} break;
|
||||||
|
#endif
|
||||||
|
case kpsBasic : // drop
|
||||||
|
case kpsRecursive : {
|
||||||
|
openOrThrow();
|
||||||
|
IoCloser closer(*io_);
|
||||||
|
|
||||||
|
long address = 0;
|
||||||
|
while (address < (long)io_->size()) {
|
||||||
|
io_->seek(address, BasicIo::beg);
|
||||||
|
address = boxHandler(out,option,depth);
|
||||||
|
}
|
||||||
|
}; break;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
void BmffImage::writeMetadata()
|
||||||
|
{
|
||||||
|
// bmff files are read-only
|
||||||
|
throw(Error(kerInvalidSettingForImage, "Image comment", "BMFF"));
|
||||||
|
} // BmffImage::writeMetadata
|
||||||
|
|
||||||
|
// *************************************************************************
|
||||||
|
// free functions
|
||||||
|
Image::AutoPtr newBmffInstance(BasicIo::AutoPtr io, bool create)
|
||||||
|
{
|
||||||
|
Image::AutoPtr image(new BmffImage(io, create));
|
||||||
|
if (!image->good()) {
|
||||||
|
image.reset();
|
||||||
|
}
|
||||||
|
return image;
|
||||||
|
}
|
||||||
|
|
||||||
|
bool isBmffType(BasicIo& iIo, bool advance)
|
||||||
|
{
|
||||||
|
if (!enabled) {
|
||||||
|
return false;
|
||||||
|
}
|
||||||
|
const int32_t len = 12;
|
||||||
|
byte buf[len];
|
||||||
|
iIo.read(buf, len);
|
||||||
|
if (iIo.error() || iIo.eof()) {
|
||||||
|
return false;
|
||||||
|
}
|
||||||
|
|
||||||
|
bool matched = buf[4] == 'f' && buf[5] == 't' && buf[6] == 'y' && buf[7] == 'p';
|
||||||
|
if (!advance || !matched) {
|
||||||
|
iIo.seek(static_cast<long>(0), BasicIo::beg);
|
||||||
|
}
|
||||||
|
return matched;
|
||||||
|
}
|
||||||
|
} // namespace Exiv2
|
||||||
Binary file not shown.
Binary file not shown.
Binary file not shown.
Binary file not shown.
Binary file not shown.
Binary file not shown.
Binary file not shown.
Binary file not shown.
|
Before Width: | Height: | Size: 1.9 MiB After Width: | Height: | Size: 1.9 MiB |
Binary file not shown.
Loading…
Reference in New Issue