You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
737 lines
29 KiB
C++
737 lines
29 KiB
C++
// SPDX-License-Identifier: GPL-2.0-or-later
|
|
|
|
// included header files
|
|
#include "bmffimage.hpp"
|
|
|
|
#include "basicio.hpp"
|
|
#include "config.h"
|
|
#include "error.hpp"
|
|
#include "enforce.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>
|
|
|
|
#define TAG_ftyp 0x66747970 /**< "ftyp" File type box */
|
|
#define TAG_avif 0x61766966 /**< "avif" AVIF */
|
|
#define TAG_avio 0x6176696f /**< "avio" AVIF */
|
|
#define TAG_avis 0x61766973 /**< "avis" AVIF */
|
|
#define TAG_heic 0x68656963 /**< "heic" HEIC */
|
|
#define TAG_heif 0x68656966 /**< "heif" HEIF */
|
|
#define TAG_heim 0x6865696d /**< "heim" HEIC */
|
|
#define TAG_heis 0x68656973 /**< "heis" HEIC */
|
|
#define TAG_heix 0x68656978 /**< "heix" HEIC */
|
|
#define TAG_mif1 0x6d696631 /**< "mif1" HEIF */
|
|
#define TAG_crx 0x63727820 /**< "crx " Canon CR3 */
|
|
#define TAG_jxl 0x6a786c20 /**< "jxl " JPEG XL file type */
|
|
#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 Extension */
|
|
#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" Colour information */
|
|
#define TAG_exif 0x45786966 /**< "Exif" Used by JXL*/
|
|
#define TAG_xml 0x786d6c20 /**< "xml " Used by JXL*/
|
|
#define TAG_thmb 0x54484d42 /**< "THMB" Canon thumbnail */
|
|
#define TAG_prvw 0x50525657 /**< "PRVW" Canon preview image */
|
|
|
|
// *****************************************************************************
|
|
// class member definitions
|
|
#ifdef EXV_ENABLE_BMFF
|
|
namespace Exiv2
|
|
{
|
|
static bool enabled = false;
|
|
EXIV2API bool enableBMFF(bool enable)
|
|
{
|
|
enabled = enable ;
|
|
return true ;
|
|
}
|
|
|
|
std::string Iloc::toString() const
|
|
{
|
|
return Internal::stringFormat("ID = %u from,length = %u,%u", ID_, start_, length_);
|
|
}
|
|
|
|
BmffImage::BmffImage(BasicIo::UniquePtr io, bool /* create */)
|
|
: Image(ImageType::bmff, mdExif | mdIptc | mdXmp, std::move(io))
|
|
{
|
|
} // BmffImage::BmffImage
|
|
|
|
std::string BmffImage::toAscii(long n)
|
|
{
|
|
const auto p = reinterpret_cast<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 || box == TAG_thmb || box == TAG_prvw;
|
|
}
|
|
|
|
static bool skipBox(uint32_t box)
|
|
{
|
|
// Allows boxHandler() to optimise the reading of files by identifying
|
|
// box types that we're not interested in. Box types listed here must
|
|
// not appear in the cases in switch (box_type) in boxHandler().
|
|
return box == TAG_mdat; // mdat is where the main image lives and can be huge
|
|
}
|
|
|
|
std::string BmffImage::mimeType() const
|
|
{
|
|
switch (fileType_) {
|
|
case TAG_avif:
|
|
case TAG_avio:
|
|
case TAG_avis:
|
|
return "image/avif";
|
|
case TAG_heic:
|
|
case TAG_heim:
|
|
case TAG_heis:
|
|
case TAG_heix:
|
|
return "image/heic";
|
|
case TAG_heif:
|
|
case TAG_mif1:
|
|
return "image/heif";
|
|
case TAG_crx:
|
|
return "image/x-canon-cr3";
|
|
case TAG_jxl:
|
|
return "image/jxl"; // https://github.com/novomesk/qt-jpegxl-image-plugin/issues/1
|
|
default:
|
|
return "image/generic";
|
|
}
|
|
}
|
|
|
|
uint32_t BmffImage::pixelWidth() const
|
|
{
|
|
auto imageWidth = exifData_.findKey(Exiv2::ExifKey("Exif.Photo.PixelXDimension"));
|
|
if (imageWidth != exifData_.end() && imageWidth->count() > 0) {
|
|
return imageWidth->toUint32();
|
|
}
|
|
return pixelWidth_;
|
|
}
|
|
|
|
uint32_t BmffImage::pixelHeight() const
|
|
{
|
|
auto imageHeight = exifData_.findKey(Exiv2::ExifKey("Exif.Photo.PixelYDimension"));
|
|
if (imageHeight != exifData_.end() && imageHeight->count() > 0) {
|
|
return imageHeight->toUint32();
|
|
}
|
|
return pixelHeight_;
|
|
}
|
|
|
|
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 = uuid.cmpBytes(0, uuidCano, 16) == 0 ? "cano"
|
|
: uuid.cmpBytes(0, uuidXmp, 16) == 0 ? "xmp"
|
|
: uuid.cmpBytes(0, uuidCanp, 16) == 0 ? "canp"
|
|
: "";
|
|
return result;
|
|
}
|
|
|
|
long BmffImage::boxHandler(std::ostream& out /* = std::cout*/ ,
|
|
Exiv2::PrintStructureOption option /* = kpsNone */,
|
|
const long pbox_end,
|
|
int depth)
|
|
{
|
|
long address = 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
|
|
|
|
// 8-byte buffer for parsing the box length and type.
|
|
byte hdrbuf[2 * sizeof(uint32_t)];
|
|
|
|
size_t hdrsize = sizeof(hdrbuf);
|
|
enforce(hdrsize <= static_cast<size_t>(pbox_end - address), Exiv2::kerCorruptedMetadata);
|
|
if (io_->read(reinterpret_cast<byte*>(&hdrbuf), sizeof(hdrbuf)) != sizeof(hdrbuf))
|
|
return pbox_end;
|
|
|
|
// The box length is encoded as a uint32_t by default, but the special value 1 means
|
|
// that it's a uint64_t.
|
|
uint64_t box_length = getLong(reinterpret_cast<byte*>(&hdrbuf[0]), endian_);
|
|
uint32_t box_type = getLong(reinterpret_cast<byte*>(&hdrbuf[sizeof(uint32_t)]), endian_);
|
|
bool bLF = true;
|
|
|
|
if ( bTrace ) {
|
|
bLF = true;
|
|
out << indent(depth) << "Exiv2::BmffImage::boxHandler: " << toAscii(box_type)
|
|
<< Internal::stringFormat(" %8ld->%lu ", address, box_length);
|
|
}
|
|
|
|
if (box_length == 1) {
|
|
// The box size is encoded as a uint64_t, so we need to read another 8 bytes.
|
|
hdrsize += 8;
|
|
enforce(hdrsize <= static_cast<size_t>(pbox_end - address), Exiv2::kerCorruptedMetadata);
|
|
DataBuf data(8);
|
|
io_->read(data.data(), data.size());
|
|
box_length = data.read_uint64(0, endian_);
|
|
}
|
|
|
|
// read data in box and restore file position
|
|
long restore = io_->tell();
|
|
enforce(box_length >= hdrsize, Exiv2::kerCorruptedMetadata);
|
|
enforce(box_length - hdrsize <= static_cast<uint64_t>(pbox_end - restore), Exiv2::kerCorruptedMetadata);
|
|
|
|
const size_t buffer_size = static_cast<size_t>(box_length - hdrsize);
|
|
if (skipBox(box_type)) {
|
|
if (bTrace) {
|
|
out << std::endl;
|
|
}
|
|
// The enforce() above checks that restore + buffer_size won't
|
|
// exceed pbox_end, and by implication, won't exceed LONG_MAX
|
|
return restore + static_cast<long>(buffer_size);
|
|
}
|
|
|
|
DataBuf data(buffer_size);
|
|
const long box_end = restore + static_cast<long>(data.size());
|
|
io_->read(data.data(), data.size());
|
|
io_->seek(restore, BasicIo::beg);
|
|
|
|
size_t skip = 0; // read position in data.pData_
|
|
uint8_t version = 0;
|
|
uint32_t flags = 0;
|
|
|
|
if (fullBox(box_type)) {
|
|
enforce(data.size() - skip >= 4, Exiv2::kerCorruptedMetadata);
|
|
flags = data.read_uint32(skip, endian_); // version/flags
|
|
version = static_cast<uint8_t>(flags >> 24);
|
|
flags &= 0x00ffffff;
|
|
skip += 4;
|
|
}
|
|
|
|
switch (box_type) {
|
|
// See notes in skipBox()
|
|
case TAG_ftyp: {
|
|
enforce(data.size() >= 4, Exiv2::kerCorruptedMetadata);
|
|
fileType_ = data.read_uint32(0, endian_);
|
|
if ( bTrace ) {
|
|
out << "brand: " << toAscii(fileType_);
|
|
}
|
|
} break;
|
|
|
|
// 8.11.6.1
|
|
case TAG_iinf: {
|
|
if ( bTrace ) {
|
|
out << std::endl;
|
|
bLF = false;
|
|
}
|
|
|
|
enforce(data.size() - skip >= 2, Exiv2::kerCorruptedMetadata);
|
|
uint16_t n = data.read_uint16(skip, endian_);
|
|
skip += 2;
|
|
|
|
io_->seek(skip, BasicIo::cur);
|
|
while (n-- > 0) {
|
|
io_->seek(boxHandler(out,option,box_end,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
|
|
enforce(data.size() - skip >= 8, Exiv2::kerCorruptedMetadata);
|
|
/* getLong (data.pData_+skip,endian_) ; */ skip += 4;
|
|
uint16_t ID = data.read_uint16(skip, endian_);
|
|
skip += 2;
|
|
/* getShort(data.pData_+skip,endian_) ; */ skip += 2; // protection
|
|
std::string id;
|
|
// Check that the string has a '\0' terminator.
|
|
const char* str = data.c_str(skip);
|
|
const size_t maxlen = data.size() - skip;
|
|
enforce(maxlen > 0 && strnlen(str, maxlen) < maxlen, Exiv2::kerCorruptedMetadata);
|
|
std::string name(str);
|
|
if (name.find("Exif") != std::string::npos) { // "Exif" or "ExifExif"
|
|
exifID_ = ID;
|
|
id=" *** Exif ***";
|
|
} else if (name.find("mime\0xmp") != std::string::npos ||
|
|
name.find("mime\0application/rdf+xml") != std::string::npos) {
|
|
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 (io_->tell() < box_end) {
|
|
io_->seek(boxHandler(out,option,box_end,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: {
|
|
enforce(data.size() - skip >= 2, Exiv2::kerCorruptedMetadata);
|
|
uint8_t u = data.read_uint8(skip++);
|
|
uint16_t offsetSize = u >> 4;
|
|
uint16_t lengthSize = u & 0xF;
|
|
#if 0
|
|
uint16_t indexSize = 0 ;
|
|
u = data.read_uint8(skip++);
|
|
if ( version == 1 || version == 2 ) {
|
|
indexSize = u & 0xF ;
|
|
}
|
|
#else
|
|
skip++;
|
|
#endif
|
|
enforce(data.size() - skip >= (version < 2u ? 2u : 4u), Exiv2::kerCorruptedMetadata);
|
|
uint32_t itemCount = version < 2 ? data.read_uint16(skip, endian_)
|
|
: data.read_uint32(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;
|
|
}
|
|
size_t step = (static_cast<size_t>(box_length) - 16) / itemCount; // length of data per item.
|
|
size_t base = skip;
|
|
for (uint32_t i = 0; i < itemCount; i++) {
|
|
skip = base + i * step; // move in 14, 16 or 18 byte steps
|
|
enforce(data.size() - skip >= (version > 2u ? 4u : 2u), Exiv2::kerCorruptedMetadata);
|
|
enforce(data.size() - skip >= step, Exiv2::kerCorruptedMetadata);
|
|
uint32_t ID = version > 2 ? data.read_uint32(skip, endian_)
|
|
: data.read_uint16(skip, endian_);
|
|
uint32_t offset = step==14 || step==16 ? data.read_uint32(skip + step - 8, endian_)
|
|
: step== 18 ? data.read_uint32(skip + 4, endian_)
|
|
: 0 ;
|
|
|
|
uint32_t ldata = data.read_uint32(skip + step - 4, endian_);
|
|
if ( bTrace ) {
|
|
out << indent(depth)
|
|
<< Internal::stringFormat("%8ld | %8ld | 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: {
|
|
enforce(data.size() - skip >= 12, Exiv2::kerCorruptedMetadata);
|
|
skip += 4;
|
|
uint32_t width = data.read_uint32(skip, endian_);
|
|
skip += 4;
|
|
uint32_t height = data.read_uint32(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() >= (skip + 4 + 8)) { // .____.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.read_uint8(skip+0);
|
|
uint8_t prec = data.read_uint8(skip+1);
|
|
uint8_t approx = data.read_uint8(skip+2);
|
|
std::string colour_type = std::string(data.c_str(), 4);
|
|
skip+=4;
|
|
if ( colour_type == "rICC" || colour_type == "prof" ) {
|
|
DataBuf profile(data.c_data(skip),data.size()-skip);
|
|
setIccProfile(std::move(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.c_data(skip),data.size()-skip);
|
|
setIccProfile(std::move(profile));
|
|
}
|
|
}
|
|
} break;
|
|
|
|
case TAG_uuid: {
|
|
DataBuf uuid(16);
|
|
io_->read(uuid.data(), uuid.size());
|
|
std::string name = uuidName(uuid);
|
|
if ( bTrace ) {
|
|
out << " uuidName " << name << std::endl;
|
|
bLF = false;
|
|
}
|
|
if (name == "cano" || name == "canp" ) {
|
|
if (name == "canp") {
|
|
// based on
|
|
// https://github.com/lclevy/canon_cr3/blob/7be75d6/parse_cr3.py#L271
|
|
io_->seek(8, BasicIo::cur);
|
|
}
|
|
while (io_->tell() < box_end) {
|
|
io_->seek(boxHandler(out,option,box_end,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;
|
|
case TAG_exif:
|
|
parseTiff(Internal::Tag::root, box_length,address+8);
|
|
break;
|
|
case TAG_xml:
|
|
parseXmp(box_length,io_->tell());
|
|
break;
|
|
case TAG_thmb:
|
|
switch (version) {
|
|
case 0: // JPEG
|
|
parseCr3Preview(data, out, bTrace, version, skip, skip+2, skip+4, skip+12);
|
|
break;
|
|
case 1: // HDR
|
|
parseCr3Preview(data, out, bTrace, version, skip+2, skip+4, skip+8, skip+12);
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
break;
|
|
case TAG_prvw:
|
|
switch (version) {
|
|
case 0: // JPEG
|
|
case 1: // HDR
|
|
parseCr3Preview(data, out, bTrace, version, skip+2, skip+4, skip+8, skip+12);
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
break;
|
|
|
|
default: break ; /* do nothing */
|
|
}
|
|
if (bLF && bTrace) out << std::endl;
|
|
|
|
// return address of next box
|
|
return box_end;
|
|
}
|
|
|
|
void BmffImage::parseTiff(uint32_t root_tag, uint64_t length,uint64_t start)
|
|
{
|
|
enforce(start <= io_->size(), kerCorruptedMetadata);
|
|
enforce(length <= io_->size() - start, kerCorruptedMetadata);
|
|
enforce(start <= std::numeric_limits<uint64_t>::max(), kerCorruptedMetadata);
|
|
enforce(length <= std::numeric_limits<uint64_t>::max(), kerCorruptedMetadata);
|
|
|
|
// read and parse exif data
|
|
long restore = io_->tell();
|
|
DataBuf exif(static_cast<size_t>(length));
|
|
io_->seek(static_cast<long>(start),BasicIo::beg);
|
|
if ( exif.size() > 8 && io_->read(exif.data(),exif.size()) == exif.size() ) {
|
|
// hunt for "II" or "MM"
|
|
long eof = 0xffffffff; // impossible value for punt
|
|
long punt = eof;
|
|
for ( size_t i = 0 ; i < exif.size() -8 && punt==eof ; i+=2) {
|
|
if ( exif.read_uint8(i) == exif.read_uint8(i+1) )
|
|
if ( exif.read_uint8(i) == 'I' || exif.read_uint8(i) == 'M' )
|
|
punt = static_cast<long>(i);
|
|
}
|
|
if ( punt != eof ) {
|
|
Internal::TiffParserWorker::decode(exifData(), iptcData(), xmpData(), exif.c_data(punt),
|
|
static_cast<uint32_t>(exif.size()-punt), root_tag,
|
|
Internal::TiffMapping::findDecoder);
|
|
}
|
|
}
|
|
io_->seek(restore,BasicIo::beg);
|
|
}
|
|
|
|
void BmffImage::parseTiff(uint32_t root_tag, uint64_t length)
|
|
{
|
|
if (length > 8) {
|
|
enforce(length - 8 <= io_->size() - io_->tell(), kerCorruptedMetadata);
|
|
enforce(length - 8 <= std::numeric_limits<uint64_t>::max(), kerCorruptedMetadata);
|
|
DataBuf data(static_cast<size_t>(length) - 8);
|
|
const size_t bufRead = io_->read(data.data(), data.size());
|
|
|
|
if (io_->error())
|
|
throw Error(kerFailedToReadImageData);
|
|
if (bufRead != data.size())
|
|
throw Error(kerInputDataReadFailed);
|
|
|
|
Internal::TiffParserWorker::decode(exifData(), iptcData(), xmpData(),
|
|
data.c_data(), static_cast<uint32_t>(data.size()), root_tag,
|
|
Internal::TiffMapping::findDecoder);
|
|
}
|
|
}
|
|
|
|
void BmffImage::parseXmp(uint64_t length,uint64_t start)
|
|
{
|
|
if (length > 8) {
|
|
enforce(start <= io_->size(), kerCorruptedMetadata);
|
|
enforce(length <= io_->size() - start, kerCorruptedMetadata);
|
|
|
|
long restore = io_->tell() ;
|
|
enforce(start <= std::numeric_limits<uint64_t>::max(), kerCorruptedMetadata);
|
|
io_->seek(static_cast<long>(start),BasicIo::beg);
|
|
|
|
enforce(length < std::numeric_limits<uint64_t>::max(), kerCorruptedMetadata);
|
|
DataBuf xmp(static_cast<size_t>(length+1));
|
|
xmp.write_uint8(static_cast<size_t>(length), 0); // ensure xmp is null terminated!
|
|
if ( io_->read(xmp.data(), static_cast<size_t>(length)) != length )
|
|
throw Error(kerInputDataReadFailed);
|
|
if ( io_->error() )
|
|
throw Error(kerFailedToReadImageData);
|
|
try {
|
|
Exiv2::XmpParser::decode(xmpData(), std::string(xmp.c_str()));
|
|
} catch (...) {
|
|
throw Error(kerFailedToReadImageData);
|
|
}
|
|
|
|
io_->seek(restore,BasicIo::beg);
|
|
}
|
|
}
|
|
|
|
/// \todo instead of passing the last 4 parameters, pass just one and build the different offsets inside
|
|
void BmffImage::parseCr3Preview(DataBuf &data,
|
|
std::ostream& out,
|
|
bool bTrace,
|
|
uint8_t version,
|
|
size_t width_offset,
|
|
size_t height_offset,
|
|
size_t size_offset,
|
|
size_t relative_position)
|
|
{
|
|
// Derived from https://github.com/lclevy/canon_cr3
|
|
long here = io_->tell();
|
|
enforce(here >= 0 &&
|
|
here <= std::numeric_limits<long>::max() - static_cast<long>(relative_position),
|
|
kerCorruptedMetadata);
|
|
NativePreview nativePreview;
|
|
nativePreview.position_ = here + static_cast<long>(relative_position);
|
|
nativePreview.width_ = data.read_uint16(width_offset, endian_);
|
|
nativePreview.height_ = data.read_uint16(height_offset, endian_);
|
|
nativePreview.size_ = data.read_uint32(size_offset, endian_);
|
|
nativePreview.filter_ = "";
|
|
switch (version) {
|
|
case 0:
|
|
nativePreview.mimeType_ = "image/jpeg";
|
|
break;
|
|
default:
|
|
nativePreview.mimeType_ = "application/octet-stream";
|
|
break;
|
|
}
|
|
nativePreviews_.push_back(nativePreview);
|
|
|
|
if (bTrace) {
|
|
out << Internal::stringFormat("width,height,size = %u,%u,%u",
|
|
nativePreview.width_,
|
|
nativePreview.height_,
|
|
nativePreview.size_);
|
|
}
|
|
}
|
|
|
|
void BmffImage::setComment(std::string_view /*comment*/)
|
|
{
|
|
// bmff files are read-only
|
|
throw(Error(kerInvalidSettingForImage, "Image comment", "BMFF"));
|
|
}
|
|
|
|
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_;
|
|
xmpID_ = unknownID_;
|
|
|
|
long address = 0;
|
|
const long file_end = static_cast<long>(io_->size());
|
|
while (address < file_end) {
|
|
io_->seek(address, BasicIo::beg);
|
|
address = boxHandler(std::cout,kpsNone,file_end,0);
|
|
}
|
|
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(iccProfile_.c_str(), 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;
|
|
const long file_end = static_cast<long>(io_->size());
|
|
while (address < file_end) {
|
|
io_->seek(address, BasicIo::beg);
|
|
address = boxHandler(out,option,file_end,depth);
|
|
}
|
|
}; break;
|
|
}
|
|
}
|
|
|
|
void BmffImage::writeMetadata()
|
|
{
|
|
// bmff files are read-only
|
|
throw(Error(kerInvalidSettingForImage, "Image comment", "BMFF"));
|
|
} // BmffImage::writeMetadata
|
|
|
|
// *************************************************************************
|
|
// free functions
|
|
Image::UniquePtr newBmffInstance(BasicIo::UniquePtr io, bool create)
|
|
{
|
|
auto image = std::make_unique<BmffImage>(std::move(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;
|
|
}
|
|
|
|
// bmff should start with "ftyp"
|
|
bool const is_ftyp = (buf[4] == 'f' && buf[5] == 't' && buf[6] == 'y' && buf[7] == 'p');
|
|
// jxl files have a special start indicator of "JXL "
|
|
bool const is_jxl = (buf[4] == 'J' && buf[5] == 'X' && buf[6] == 'L' && buf[7] == ' ');
|
|
|
|
// MOV(quicktime) files seem to also start with ftyp, but we don't want to process them
|
|
// so check that we don't encounter "qt "
|
|
// FIXME what others types can we abort early here?
|
|
bool const is_video = (buf[8] == 'q' && buf[9] == 't' && buf[10] == ' ' && buf[11] == ' ');
|
|
bool matched = is_jxl || (is_ftyp && !is_video);
|
|
if (!advance || !matched) {
|
|
iIo.seek(static_cast<long>(0), BasicIo::beg);
|
|
}
|
|
return matched;
|
|
}
|
|
} // namespace Exiv2
|
|
#else // ifdef EXV_ENABLE_BMFF
|
|
namespace Exiv2
|
|
{
|
|
EXIV2API bool enableBMFF(bool)
|
|
{
|
|
return false ;
|
|
}
|
|
}
|
|
#endif
|