コード例 #1
0
ファイル: rafimage.cpp プロジェクト: wjbeaver/Hide-Seep
    void RafImage::readMetadata()
    {
#ifdef DEBUG
        std::cerr << "Reading RAF file " << io_->path() << "\n";
#endif
        if (io_->open() != 0) throw Error(9, io_->path(), strError());
        IoCloser closer(*io_);
        // Ensure that this is the correct image type
        if (!isRafType(*io_, false)) {
            if (io_->error() || io_->eof()) throw Error(14);
            throw Error(3, "RAF");
        }
        byte const* pData = io_->mmap();
        long size = io_->size();
        if (size < 88 + 4) throw Error(14); // includes the test for -1
        uint32_t const start = getULong(pData + 84, bigEndian) + 12;
        if (static_cast<uint32_t>(size) < start) throw Error(14);
        clearMetadata();
        ByteOrder bo = TiffParser::decode(exifData_,
                                          iptcData_,
                                          xmpData_,
                                          pData + start,
                                          size - start);

        exifData_["Exif.Image2.JPEGInterchangeFormat"] = getULong(pData + 84, bigEndian);
        exifData_["Exif.Image2.JPEGInterchangeFormatLength"] = getULong(pData + 88, bigEndian);

        setByteOrder(bo);
    } // RafImage::readMetadata
コード例 #2
0
bool OrfHeader::read(const byte* pData, uint32_t size)
{
    if (size < 8) return false;

    if (pData[0] == 0x49 && pData[1] == 0x49) {
        setByteOrder(littleEndian);
    }
    else if (pData[0] == 0x4d && pData[1] == 0x4d) {
        setByteOrder(bigEndian);
    }
    else {
        return false;
    }
    if (tag() != getUShort(pData + 2, byteOrder())) return false;
    setOffset(getULong(pData + 4, byteOrder()));
    if (offset() != 0x00000008) return false;

    return true;
} // OrfHeader::read
コード例 #3
0
    bool Cr2Header::read(const byte* pData, uint32_t size)
    {
        if (size < 16) return false;

        if (pData[0] == 0x49 && pData[1] == 0x49) {
            setByteOrder(littleEndian);
        }
        else if (pData[0] == 0x4d && pData[1] == 0x4d) {
            setByteOrder(bigEndian);
        }
        else {
            return false;
        }
        if (tag() != getUShort(pData + 2, byteOrder())) return false;
        setOffset(getULong(pData + 4, byteOrder()));
        if (0 != memcmp(pData + 8, cr2sig_, 4)) return false;
        offset2_ = getULong(pData + 12, byteOrder());

        return true;
    } // Cr2Header::read
コード例 #4
0
    void PsdImage::processResourceBlock(uint16_t resourceId, uint32_t resourceSize)
    {
        switch(resourceId)
        {
            case kPhotoshopResourceID_IPTC_NAA:
            {
                DataBuf rawIPTC(resourceSize);
                io_->read(rawIPTC.pData_, rawIPTC.size_);
                if (io_->error() || io_->eof()) throw Error(14);
                if (IptcParser::decode(iptcData_, rawIPTC.pData_, rawIPTC.size_)) {
#ifndef SUPPRESS_WARNINGS
                    std::cerr << "Warning: Failed to decode IPTC metadata.\n";
#endif
                    iptcData_.clear();
                }
                break;
            }

            case kPhotoshopResourceID_ExifInfo:
            {
                DataBuf rawExif(resourceSize);
                io_->read(rawExif.pData_, rawExif.size_);
                if (io_->error() || io_->eof()) throw Error(14);
                ByteOrder bo = ExifParser::decode(exifData_, rawExif.pData_, rawExif.size_);
                setByteOrder(bo);
                if (rawExif.size_ > 0 && byteOrder() == invalidByteOrder) {
#ifndef SUPPRESS_WARNINGS
                    std::cerr << "Warning: Failed to decode Exif metadata.\n";
#endif
                    exifData_.clear();
                }
                break;
            }

            case kPhotoshopResourceID_XMPPacket:
            {
                DataBuf xmpPacket(resourceSize);
                io_->read(xmpPacket.pData_, xmpPacket.size_);
                if (io_->error() || io_->eof()) throw Error(14);
                xmpPacket_.assign(reinterpret_cast<char *>(xmpPacket.pData_), xmpPacket.size_);
                if (xmpPacket_.size() > 0 && XmpParser::decode(xmpData_, xmpPacket_)) {
#ifndef SUPPRESS_WARNINGS
                    std::cerr << "Warning: Failed to decode XMP metadata.\n";
#endif
                }
                break;
            }

            default:
            {
                break;
            }
        }
    }
コード例 #5
0
    bool OrfHeader::read(const byte* pData, uint32_t size)
    {
        if (size < 8) return false;

        if (pData[0] == 0x49 && pData[1] == 0x49) {
            setByteOrder(littleEndian);
        }
        else if (pData[0] == 0x4d && pData[1] == 0x4d) {
            setByteOrder(bigEndian);
        }
        else {
            return false;
        }
        uint16_t sig = getUShort(pData + 2, byteOrder());
        if (tag() != sig && 0x5352 != sig) return false; // #658: Added 0x5352 for SP-560UZ
        sig_ = sig;
        setOffset(getULong(pData + 4, byteOrder()));
        if (offset() != 0x00000008) return false;

        return true;
    } // OrfHeader::read
コード例 #6
0
    void MrwImage::readMetadata()
    {
#ifdef DEBUG
        std::cerr << "Reading MRW file " << io_->path() << "\n";
#endif
        if (io_->open() != 0) {
            throw Error(9, io_->path(), strError());
        }
        IoCloser closer(*io_);
        // Ensure that this is the correct image type
        if (!isMrwType(*io_, false)) {
            if (io_->error() || io_->eof()) throw Error(14);
            throw Error(3, "MRW");
        }
        clearMetadata();

        // Find the TTW block and read it into a buffer
        uint32_t const len = 8;
        byte tmp[len];
        io_->read(tmp, len);
        uint32_t pos = len;
        uint32_t const end = getULong(tmp + 4, bigEndian);

        pos += len;
        if (pos > end) throw Error(14);
        io_->read(tmp, len);
        if (io_->error() || io_->eof()) throw Error(14);

        while (memcmp(tmp + 1, "TTW", 3) != 0) {
            uint32_t const siz = getULong(tmp + 4, bigEndian);
            pos += siz;
            if (pos > end) throw Error(14);
            io_->seek(siz, BasicIo::cur);
            if (io_->error() || io_->eof()) throw Error(14);

            pos += len;
            if (pos > end) throw Error(14);
            io_->read(tmp, len);
            if (io_->error() || io_->eof()) throw Error(14);
        }

        DataBuf buf(getULong(tmp + 4, bigEndian));
        io_->read(buf.pData_, buf.size_);
        if (io_->error() || io_->eof()) throw Error(14);

        ByteOrder bo = TiffParser::decode(exifData_,
                                          iptcData_,
                                          xmpData_,
                                          buf.pData_,
                                          buf.size_);
        setByteOrder(bo);
    } // MrwImage::readMetadata
コード例 #7
0
    uint32_t PsdImage::writeExifData(const ExifData& exifData, BasicIo& out)
    {
        uint32_t resLength = 0;
        byte buf[8];

        if (exifData.count() > 0) {
            Blob blob;
            ByteOrder bo = byteOrder();
            if (bo == invalidByteOrder) {
                bo = littleEndian;
                setByteOrder(bo);
            }
            ExifParser::encode(blob, bo, exifData);

            if (blob.size() > 0) {
#ifdef DEBUG
                std::cerr << std::hex << "write: resourceId: " << kPhotoshopResourceID_ExifInfo << "\n";
                std::cerr << std::dec << "Writing ExifInfo: size: " << blob.size() << "\n";
#endif
                ul2Data(buf, kPhotoshopResourceType, bigEndian);
                if (out.write(buf, 4) != 4) throw Error(21);
                us2Data(buf, kPhotoshopResourceID_ExifInfo, bigEndian);
                if (out.write(buf, 2) != 2) throw Error(21);
                us2Data(buf, 0, bigEndian);                      // NULL resource name
                if (out.write(buf, 2) != 2) throw Error(21);
                ul2Data(buf, blob.size(), bigEndian);
                if (out.write(buf, 4) != 4) throw Error(21);
                // Write encoded Exif data
                if (out.write(&blob[0], blob.size()) != static_cast<long>(blob.size())) throw Error(21);
                resLength += blob.size() + 12;
                if (blob.size() & 1)    // even padding
                {
                    buf[0] = 0;
                    if (out.write(buf, 1) != 1) throw Error(21);
                    resLength++;
                }
            }
        }
        return resLength;
    } // PsdImage::writeExifData
コード例 #8
0
    void Jp2Image::readMetadata()
    {
#ifdef DEBUG
        std::cerr << "Exiv2::Jp2Image::readMetadata: Reading JPEG-2000 file " << io_->path() << "\n";
#endif
        if (io_->open() != 0)
        {
            throw Error(9, io_->path(), strError());
        }
        IoCloser closer(*io_);
        // Ensure that this is the correct image type
        if (!isJp2Type(*io_, true))
        {
            if (io_->error() || io_->eof()) throw Error(14);
            throw Error(3, "JPEG-2000");
        }

        long              position  = 0;
        Jp2BoxHeader      box       = {0,0};
        Jp2BoxHeader      subBox    = {0,0};
        Jp2ImageHeaderBox ihdr      = {0,0,0,0,0,0,0,0};
        Jp2UuidBox        uuid      = {{0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0}};

        while (io_->read((byte*)&box, sizeof(box)) == sizeof(box))
        {
            position      = io_->tell();
            box.boxLength = getLong((byte*)&box.boxLength, bigEndian);
#ifdef DEBUG
            std::cout << "Exiv2::Jp2Image::readMetadata: Position: " << position << "\n";
            std::cout << "Exiv2::Jp2Image::readMetadata: Find box type: " << std::string((const char*)&box.boxType)
                      << " lenght: " << box.boxLength << "\n";
#endif
            box.boxType   = getLong((byte*)&box.boxType, bigEndian);

            if (box.boxLength == 0)
            {
#ifdef DEBUG
                std::cout << "Exiv2::Jp2Image::readMetadata: Null Box size has been found. "
                             "This is the last box of file.\n";
#endif
                return;
            }
            if (box.boxLength == 1)
            {
                // FIXME. Special case. the real box size is given in another place.
            }

            switch(box.boxType)
            {
                case kJp2BoxTypeJp2Header:
                {
#ifdef DEBUG
                    std::cout << "Exiv2::Jp2Image::readMetadata: JP2Header box found\n";
#endif

                    if (io_->read((byte*)&subBox, sizeof(subBox)) == sizeof(subBox))
                    {
                        subBox.boxLength = getLong((byte*)&subBox.boxLength, bigEndian);
                        subBox.boxType   = getLong((byte*)&subBox.boxType, bigEndian);

                        if((subBox.boxType == kJp2BoxTypeImageHeader) &&
                           (io_->read((byte*)&ihdr, sizeof(ihdr)) == sizeof(ihdr)))
                        {
#ifdef DEBUG
                           std::cout << "Exiv2::Jp2Image::readMetadata: Ihdr data found\n";
#endif

                            ihdr.imageHeight            = getLong((byte*)&ihdr.imageHeight, bigEndian);
                            ihdr.imageWidth             = getLong((byte*)&ihdr.imageWidth, bigEndian);
                            ihdr.componentCount         = getShort((byte*)&ihdr.componentCount, bigEndian);
                            ihdr.compressionTypeProfile = getShort((byte*)&ihdr.compressionTypeProfile, bigEndian);

                            pixelWidth_  = ihdr.imageWidth;
                            pixelHeight_ = ihdr.imageHeight;
                        }
                    }
                    break;
                }

                case kJp2BoxTypeUuid:
                {
#ifdef DEBUG
                    std::cout << "Exiv2::Jp2Image::readMetadata: UUID box found\n";
#endif

                    if (io_->read((byte*)&uuid, sizeof(uuid)) == sizeof(uuid))
                    {
                        DataBuf rawData;
                        long    bufRead;

                        if(memcmp(uuid.uuid, kJp2UuidExif, sizeof(uuid)) == 0)
                        {
#ifdef DEBUG
                           std::cout << "Exiv2::Jp2Image::readMetadata: Exif data found\n";
#endif

                            // we've hit an embedded Exif block
                            rawData.alloc(box.boxLength - (sizeof(box) + sizeof(uuid)));
                            bufRead = io_->read(rawData.pData_, rawData.size_);
                            if (io_->error()) throw Error(14);
                            if (bufRead != rawData.size_) throw Error(20);

                            if (rawData.size_ > 0)
                            {
                                // Find the position of Exif header in bytes array.

                                const byte exifHeader[] = { 0x45, 0x78, 0x69, 0x66, 0x00, 0x00 };
                                long pos = -1;

                                for (long i=0 ; i < rawData.size_-(long)sizeof(exifHeader) ; i++)
                                {
                                    if (memcmp(exifHeader, &rawData.pData_[i], sizeof(exifHeader)) == 0)
                                    {
                                        pos = i;
                                        break;
                                    }
                                }

                                // If found it, store only these data at from this place.

                                if (pos !=-1)
                                {
#ifdef DEBUG
                                    std::cout << "Exiv2::Jp2Image::readMetadata: Exif header found at position " << pos << "\n";
#endif
                                    pos = pos + sizeof(exifHeader);
                                    ByteOrder bo = TiffParser::decode(exifData(),
                                                                      iptcData(),
                                                                      xmpData(),
                                                                      rawData.pData_ + pos,
                                                                      rawData.size_ - pos);
                                    setByteOrder(bo);
                                }
                            }
                            else
                            {
#ifndef SUPPRESS_WARNINGS
                                EXV_WARNING << "Failed to decode Exif metadata.\n";
#endif
                                exifData_.clear();
                            }
                        }
                        else if(memcmp(uuid.uuid, kJp2UuidIptc, sizeof(uuid)) == 0)
                        {
                            // we've hit an embedded IPTC block
#ifdef DEBUG
                           std::cout << "Exiv2::Jp2Image::readMetadata: Iptc data found\n";
#endif
                            rawData.alloc(box.boxLength - (sizeof(box) + sizeof(uuid)));
                            bufRead = io_->read(rawData.pData_, rawData.size_);
                            if (io_->error()) throw Error(14);
                            if (bufRead != rawData.size_) throw Error(20);

                            if (IptcParser::decode(iptcData_, rawData.pData_, rawData.size_))
                            {
#ifndef SUPPRESS_WARNINGS
                                EXV_WARNING << "Failed to decode IPTC metadata.\n";
#endif
                                iptcData_.clear();
                            }
                        }
                        else if(memcmp(uuid.uuid, kJp2UuidXmp, sizeof(uuid)) == 0)
                        {
                            // we've hit an embedded XMP block
#ifdef DEBUG
                           std::cout << "Exiv2::Jp2Image::readMetadata: Xmp data found\n";
#endif

                            rawData.alloc(box.boxLength - (sizeof(box) + sizeof(uuid)));
                            bufRead = io_->read(rawData.pData_, rawData.size_);
                            if (io_->error()) throw Error(14);
                            if (bufRead != rawData.size_) throw Error(20);
                            xmpPacket_.assign(reinterpret_cast<char *>(rawData.pData_), rawData.size_);

                            std::string::size_type idx = xmpPacket_.find_first_of('<');
                            if (idx != std::string::npos && idx > 0)
                            {
#ifndef SUPPRESS_WARNINGS
                                EXV_WARNING << "Removing " << static_cast<uint32_t>(idx)
                                            << " characters from the beginning of the XMP packet\n";
#endif
                                xmpPacket_ = xmpPacket_.substr(idx);
                            }

                            if (xmpPacket_.size() > 0 && XmpParser::decode(xmpData_, xmpPacket_))
                            {
#ifndef SUPPRESS_WARNINGS
                                EXV_WARNING << "Failed to decode XMP metadata.\n";
#endif
                            }
                        }
                    }
                    break;
                }

                default:
                {
                    break;
                }
            }

            // Move to the next box.

            io_->seek(static_cast<long>(position - sizeof(box) + box.boxLength), BasicIo::beg);
            if (io_->error() || io_->eof()) throw Error(14);
        }

    } // Jp2Image::readMetadata
コード例 #9
0
ファイル: qiconvcodec.cpp プロジェクト: phen89/rtqt
QByteArray QIconvCodec::convertFromUnicode(const QChar *uc, int len, ConverterState *convState) const
{
    char *inBytes;
    char *outBytes;
    size_t inBytesLeft;

#if defined(GNU_LIBICONV)
    const char **inBytesPtr = const_cast<const char **>(&inBytes);
#else
    char **inBytesPtr = &inBytes;
#endif

    IconvState *temporaryState = 0;
    QThreadStorage<QIconvCodec::IconvState *> *ts = fromUnicodeState();
    IconvState *&state = (qt_locale_initialized && ts) ? ts->localData() : temporaryState;
    if (!state) {
        iconv_t cd = QIconvCodec::createIconv_t(0, UTF16);
        if (cd != reinterpret_cast<iconv_t>(-1)) {
            if (!setByteOrder(cd)) {
                perror("QIconvCodec::convertFromUnicode: using Latin-1 for conversion, iconv failed for BOM");

                iconv_close(cd);
                cd = reinterpret_cast<iconv_t>(-1);

                return QString(uc, len).toLatin1();
            }
        }
        state = new IconvState(cd);
    }
    if (state->cd == reinterpret_cast<iconv_t>(-1)) {
        static int reported = 0;
        if (!reported++) {
            fprintf(stderr,
                    "QIconvCodec::convertFromUnicode: using Latin-1 for conversion, iconv_open failed\n");
        }
        delete temporaryState;
        return QString(uc, len).toLatin1();
    }
 
    size_t outBytesLeft = len;
    QByteArray ba(outBytesLeft, Qt::Uninitialized);
    outBytes = ba.data();

    // now feed iconv() the real data
    inBytes = const_cast<char *>(reinterpret_cast<const char *>(uc));
    inBytesLeft = len * sizeof(QChar);

    QByteArray in;
    if (convState && convState->remainingChars) {
        // we have one surrogate char to be prepended
        in.resize(sizeof(QChar) + len);
        inBytes = in.data();

        QChar remaining = convState->state_data[0];
        memcpy(in.data(), &remaining, sizeof(QChar));
        memcpy(in.data() + sizeof(QChar), uc, inBytesLeft);

        inBytesLeft += sizeof(QChar);
        convState->remainingChars = 0;
    }

    int invalidCount = 0;
    while (inBytesLeft != 0) {
        if (iconv(state->cd, inBytesPtr, &inBytesLeft, &outBytes, &outBytesLeft) == (size_t) -1) {
            if (errno == EINVAL && convState) {
                // buffer ends in a surrogate
                Q_ASSERT(inBytesLeft == 2);
                convState->remainingChars = 1;
                convState->state_data[0] = uc[len - 1].unicode();
                break;
            }

            switch (errno) {
            case EILSEQ:
                ++invalidCount;
                // fall through
            case EINVAL:
                {
                    inBytes += sizeof(QChar);
                    inBytesLeft -= sizeof(QChar);
                    break;
                }
            case E2BIG:
                {
                    int offset = ba.size() - outBytesLeft;
                    ba.resize(ba.size() * 2);
                    outBytes = ba.data() + offset;
                    outBytesLeft = ba.size() - offset;
                    break;
                }
            default:
                {
                    // note, cannot use qWarning() since we are implementing the codecForLocale :)
                    perror("QIconvCodec::convertFromUnicode: using Latin-1 for conversion, iconv failed");

                    // reset to initial state
                    iconv(state->cd, 0, &inBytesLeft, 0, &outBytesLeft);

                    delete temporaryState;
                    return QString(uc, len).toLatin1();
                }
            }
        }
    }

    // reset to initial state
    iconv(state->cd, 0, &inBytesLeft, 0, &outBytesLeft);
    setByteOrder(state->cd);

    ba.resize(ba.size() - outBytesLeft);

    if (convState)
        convState->invalidChars = invalidCount;

    delete temporaryState;
    return ba;
}
コード例 #10
0
QByteArray QIconvCodec::convertFromUnicode(const QChar *uc, int len, ConverterState *convState) const
{
    char *inBytes;
    char *outBytes;
    size_t inBytesLeft;

#if defined(GNU_LIBICONV)
    const char **inBytesPtr = const_cast<const char **>(&inBytes);
#else
    char **inBytesPtr = &inBytes;
#endif

    QThreadStorage<QIconvCodec::IconvState *> *ts = fromUnicodeState();
    if (!qt_locale_initialized || !ts) {
        // we're running after the Q_GLOBAL_STATIC has been deleted
        // or before the QCoreApplication initialization
        // bad programmer, no cookie for you
        if (!len)
            // this is a special case - zero-sized string should be
            // translated to empty but not-null QByteArray.
            return QByteArray("");
        return QString::fromRawData(uc, len).toLatin1();
    }
    IconvState *&state = ts->localData();
    if (!state) {
        state = new IconvState(QIconvCodec::createIconv_t(0, UTF16));
        if (state->cd == reinterpret_cast<iconv_t>(-1)) {
            if (!setByteOrder(state->cd)) {
                perror("QIconvCodec::convertFromUnicode: using Latin-1 for conversion, iconv failed for BOM");

                iconv_close(state->cd);
                state->cd = reinterpret_cast<iconv_t>(-1);

                return QString(uc, len).toLatin1();
            }
        }
    }
    if (state->cd == reinterpret_cast<iconv_t>(-1)) {
        static int reported = 0;
        if (!reported++) {
            fprintf(stderr,
                    "QIconvCodec::convertFromUnicode: using Latin-1 for conversion, iconv_open failed\n");
        }
        return QString(uc, len).toLatin1();
    }
 
    size_t outBytesLeft = len;
    QByteArray ba(outBytesLeft, Qt::Uninitialized);
    outBytes = ba.data();

    // now feed iconv() the real data
    inBytes = const_cast<char *>(reinterpret_cast<const char *>(uc));
    inBytesLeft = len * sizeof(QChar);

    QByteArray in;
    if (convState && convState->remainingChars) {
        // we have one surrogate char to be prepended
        in.resize(sizeof(QChar) + len);
        inBytes = in.data();

        QChar remaining = convState->state_data[0];
        memcpy(in.data(), &remaining, sizeof(QChar));
        memcpy(in.data() + sizeof(QChar), uc, inBytesLeft);

        inBytesLeft += sizeof(QChar);
        convState->remainingChars = 0;
    }

    int invalidCount = 0;
    while (inBytesLeft != 0) {
        if (iconv(state->cd, inBytesPtr, &inBytesLeft, &outBytes, &outBytesLeft) == (size_t) -1) {
            if (errno == EINVAL && convState) {
                // buffer ends in a surrogate
                Q_ASSERT(inBytesLeft == 2);
                convState->remainingChars = 1;
                convState->state_data[0] = uc[len - 1].unicode();
                break;
            }

            switch (errno) {
            case EILSEQ:
                ++invalidCount;
                // fall through
            case EINVAL:
                {
                    inBytes += sizeof(QChar);
                    inBytesLeft -= sizeof(QChar);
                    break;
                }
            case E2BIG:
                {
                    int offset = ba.size() - outBytesLeft;
                    ba.resize(ba.size() * 2);
                    outBytes = ba.data() + offset;
                    outBytesLeft = ba.size() - offset;
                    break;
                }
            default:
                {
                    // note, cannot use qWarning() since we are implementing the codecForLocale :)
                    perror("QIconvCodec::convertFromUnicode: using Latin-1 for conversion, iconv failed");

                    // reset to initial state
                    iconv(state->cd, 0, &inBytesLeft, 0, &outBytesLeft);

                    return QString(uc, len).toLatin1();
                }
            }
        }
    }

    // reset to initial state
    iconv(state->cd, 0, &inBytesLeft, 0, &outBytesLeft);
    setByteOrder(state->cd);

    ba.resize(ba.size() - outBytesLeft);

    if (convState)
        convState->invalidChars = invalidCount;

    return ba;
}
コード例 #11
0
    void JpegBase::doWriteMetadata(BasicIo& outIo)
    {
        if (!io_->isopen()) throw Error(20);
        if (!outIo.isopen()) throw Error(21);

        // Ensure that this is the correct image type
        if (!isThisType(*io_, true)) {
            if (io_->error() || io_->eof()) throw Error(20);
            throw Error(22);
        }

        const long bufMinSize = 36;
        long bufRead = 0;
        DataBuf buf(bufMinSize);
        const long seek = io_->tell();
        int count = 0;
        int search = 0;
        int insertPos = 0;
        int comPos = 0;
        int skipApp1Exif = -1;
        int skipApp1Xmp = -1;
        int skipApp13Ps3 = -1;
        int skipCom = -1;
        DataBuf psData;
        DataBuf rawExif;

        // Write image header
        if (writeHeader(outIo)) throw Error(21);

        // Read section marker
        int marker = advanceToMarker();
        if (marker < 0) throw Error(22);

        // First find segments of interest. Normally app0 is first and we want
        // to insert after it. But if app0 comes after com, app1 and app13 then
        // don't bother.
        while (marker != sos_ && marker != eoi_ && search < 5) {
            // Read size and signature (ok if this hits EOF)
            bufRead = io_->read(buf.pData_, bufMinSize);
            if (io_->error()) throw Error(20);
            uint16_t size = getUShort(buf.pData_, bigEndian);

            if (marker == app0_) {
                if (size < 2) throw Error(22);
                insertPos = count + 1;
                if (io_->seek(size-bufRead, BasicIo::cur)) throw Error(22);
            }
            else if (   skipApp1Exif == -1
                     && marker == app1_ && memcmp(buf.pData_ + 2, exifId_, 6) == 0) {
                if (size < 8) throw Error(22);
                skipApp1Exif = count;
                ++search;
                // Seek to beginning and read the current Exif data
                io_->seek(8 - bufRead, BasicIo::cur);
                rawExif.alloc(size - 8);
                io_->read(rawExif.pData_, rawExif.size_);
                if (io_->error() || io_->eof()) throw Error(22);
            }
            else if (marker == app1_ && memcmp(buf.pData_ + 2, xmpId_, 29) == 0) {
                if (size < 31) throw Error(22);
                skipApp1Xmp = count;
                ++search;
                if (io_->seek(size-bufRead, BasicIo::cur)) throw Error(22);
            }
            else if (marker == app13_ && memcmp(buf.pData_ + 2, Photoshop::ps3Id_, 14) == 0) {
#ifdef DEBUG
                std::cerr << "Found APP13 Photoshop PS3 segment\n";
#endif
                if (size < 16) throw Error(22);
                skipApp13Ps3 = count;
                ++search;
                io_->seek(16 - bufRead, BasicIo::cur);
                psData.alloc(size - 16);
                // Load PS data now to allow reinsertion at any point
                io_->read(psData.pData_, size - 16);
                if (io_->error() || io_->eof()) throw Error(20);
            }
            else if (marker == com_ && skipCom == -1) {
                if (size < 2) throw Error(22);
                // Jpegs can have multiple comments, but for now only handle
                // the first one (most jpegs only have one anyway).
                skipCom = count;
                ++search;
                if (io_->seek(size-bufRead, BasicIo::cur)) throw Error(22);
            }
            else {
                if (size < 2) throw Error(22);
                if (io_->seek(size-bufRead, BasicIo::cur)) throw Error(22);
            }
            // As in jpeg-6b/wrjpgcom.c:
            // We will insert the new comment marker just before SOFn.
            // This (a) causes the new comment to appear after, rather than before,
            // existing comments; and (b) ensures that comments come after any JFIF
            // or JFXX markers, as required by the JFIF specification.
            if (   comPos == 0
                && (   marker == sof0_
                    || marker == sof1_
                    || marker == sof2_
                    || marker == sof3_
                    || marker == sof5_
                    || marker == sof6_
                    || marker == sof7_
                    || marker == sof9_
                    || marker == sof10_
                    || marker == sof11_
                    || marker == sof13_
                    || marker == sof14_
                    || marker == sof15_)) {
                comPos = count;
                ++search;
            }
            marker = advanceToMarker();
            if (marker < 0) throw Error(22);
            ++count;
        }
        if (comPos == 0) {
            if (marker == eoi_) comPos = count;
            else comPos = insertPos;
            ++search;
        }
        if (exifData_.count() > 0) ++search;
        if (writeXmpFromPacket() == false && xmpData_.count() > 0) ++search;
        if (writeXmpFromPacket() == true && xmpPacket_.size() > 0) ++search;
        if (iptcData_.count() > 0) ++search;
        if (!comment_.empty()) ++search;

        io_->seek(seek, BasicIo::beg);
        count = 0;
        marker = advanceToMarker();
        if (marker < 0) throw Error(22);

        // To simplify this a bit, new segments are inserts at either the start
        // or right after app0. This is standard in most jpegs, but has the
        // potential to change segment ordering (which is allowed).
        // Segments are erased if there is no assigned metadata.
        while (marker != sos_ && search > 0) {
            // Read size and signature (ok if this hits EOF)
            bufRead = io_->read(buf.pData_, bufMinSize);
            if (io_->error()) throw Error(20);
            // Careful, this can be a meaningless number for empty
            // images with only an eoi_ marker
            uint16_t size = getUShort(buf.pData_, bigEndian);

            if (insertPos == count) {
                byte tmpBuf[64];
                // Write Exif data first so that - if there is no app0 - we
                // create "Exif images" according to the Exif standard.
                if (exifData_.count() > 0) {
                    Blob blob;
                    ByteOrder bo = byteOrder();
                    if (bo == invalidByteOrder) {
                        bo = littleEndian;
                        setByteOrder(bo);
                    }
                    WriteMethod wm = ExifParser::encode(blob,
                                                        rawExif.pData_,
                                                        rawExif.size_,
                                                        bo,
                                                        exifData_);
                    const byte* pExifData = rawExif.pData_;
                    uint32_t exifSize = rawExif.size_;
                    if (wm == wmIntrusive) {
                        pExifData = blob.size() > 0 ? &blob[0] : 0;
                        exifSize = static_cast<uint32_t>(blob.size());
                    }
                    if (exifSize > 0) {
                        // Write APP1 marker, size of APP1 field, Exif id and Exif data
                        tmpBuf[0] = 0xff;
                        tmpBuf[1] = app1_;

                        if (exifSize + 8 > 0xffff) throw Error(37, "Exif");
                        us2Data(tmpBuf + 2, static_cast<uint16_t>(exifSize + 8), bigEndian);
                        std::memcpy(tmpBuf + 4, exifId_, 6);
                        if (outIo.write(tmpBuf, 10) != 10) throw Error(21);

                        // Write new Exif data buffer
                        if (   outIo.write(pExifData, exifSize)
                            != static_cast<long>(exifSize)) throw Error(21);
                        if (outIo.error()) throw Error(21);
                        --search;
                    }
                }
                if (writeXmpFromPacket() == false) {
                    if (XmpParser::encode(xmpPacket_, xmpData_) > 1) {
#ifndef SUPPRESS_WARNINGS
                        std::cerr << "Error: Failed to encode XMP metadata.\n";
#endif
                    }
                }
                if (xmpPacket_.size() > 0) {
                    // Write APP1 marker, size of APP1 field, XMP id and XMP packet
                    tmpBuf[0] = 0xff;
                    tmpBuf[1] = app1_;

                    if (xmpPacket_.size() + 31 > 0xffff) throw Error(37, "XMP");
                    us2Data(tmpBuf + 2, static_cast<uint16_t>(xmpPacket_.size() + 31), bigEndian);
                    std::memcpy(tmpBuf + 4, xmpId_, 29);
                    if (outIo.write(tmpBuf, 33) != 33) throw Error(21);

                    // Write new XMP packet
                    if (   outIo.write(reinterpret_cast<const byte*>(xmpPacket_.data()), static_cast<long>(xmpPacket_.size()))
                        != static_cast<long>(xmpPacket_.size())) throw Error(21);
                    if (outIo.error()) throw Error(21);
                    --search;
                }
                if (psData.size_ > 0 || iptcData_.count() > 0) {
                    // Set the new IPTC IRB, keeps existing IRBs but removes the
                    // IPTC block if there is no new IPTC data to write
                    DataBuf newPsData = Photoshop::setIptcIrb(psData.pData_,
                                                              psData.size_,
                                                              iptcData_);
                    if (newPsData.size_ > 0) {
                        // Write APP13 marker, new size, and ps3Id
                        tmpBuf[0] = 0xff;
                        tmpBuf[1] = app13_;

                        if (newPsData.size_ + 16 > 0xffff) throw Error(37, "IPTC");
                        us2Data(tmpBuf + 2, static_cast<uint16_t>(newPsData.size_ + 16), bigEndian);
                        std::memcpy(tmpBuf + 4, Photoshop::ps3Id_, 14);
                        if (outIo.write(tmpBuf, 18) != 18) throw Error(21);
                        if (outIo.error()) throw Error(21);

                        // Write new Photoshop IRB data buffer
                        if (   outIo.write(newPsData.pData_, newPsData.size_)
                            != newPsData.size_) throw Error(21);
                        if (outIo.error()) throw Error(21);
                    }
                    if (iptcData_.count() > 0) {
                        --search;
                    }
                }
            }
            if (comPos == count) {
                if (!comment_.empty()) {
                    byte tmpBuf[4];
                    // Write COM marker, size of comment, and string
                    tmpBuf[0] = 0xff;
                    tmpBuf[1] = com_;

                    if (comment_.length() + 3 > 0xffff) throw Error(37, "JPEG comment");
                    us2Data(tmpBuf + 2, static_cast<uint16_t>(comment_.length() + 3), bigEndian);

                    if (outIo.write(tmpBuf, 4) != 4) throw Error(21);
                    if (outIo.write((byte*)comment_.data(), (long)comment_.length())
                        != (long)comment_.length()) throw Error(21);
                    if (outIo.putb(0)==EOF) throw Error(21);
                    if (outIo.error()) throw Error(21);
                    --search;
                }
                --search;
            }
            if (marker == eoi_) {
                break;
            }
            else if (   skipApp1Exif == count
                     || skipApp1Xmp  == count
                     || skipApp13Ps3 == count
                     || skipCom      == count) {
                --search;
                io_->seek(size-bufRead, BasicIo::cur);
            }
            else {
                if (size < 2) throw Error(22);
                buf.alloc(size+2);
                io_->seek(-bufRead-2, BasicIo::cur);
                io_->read(buf.pData_, size+2);
                if (io_->error() || io_->eof()) throw Error(20);
                if (outIo.write(buf.pData_, size+2) != size+2) throw Error(21);
                if (outIo.error()) throw Error(21);
            }

            // Next marker
            marker = advanceToMarker();
            if (marker < 0) throw Error(22);
            ++count;
        }

        // Copy rest of the Io
        io_->seek(-2, BasicIo::cur);
        buf.alloc(4096);
        long readSize = 0;
        while ((readSize=io_->read(buf.pData_, buf.size_))) {
            if (outIo.write(buf.pData_, readSize) != readSize) throw Error(21);
        }
        if (outIo.error()) throw Error(21);

    } // JpegBase::doWriteMetadata
コード例 #12
0
    void JpegBase::readMetadata()
    {
        int rc = 0; // Todo: this should be the return value

        if (io_->open() != 0) throw Error(9, io_->path(), strError());
        IoCloser closer(*io_);
        // Ensure that this is the correct image type
        if (!isThisType(*io_, true)) {
            if (io_->error() || io_->eof()) throw Error(14);
            throw Error(15);
        }
        clearMetadata();
        int search = 5;
        const long bufMinSize = 36;
        long bufRead = 0;
        DataBuf buf(bufMinSize);
        Blob iptcBlob;
        bool foundPsData = false;
        bool foundExifData = false;

        // Read section marker
        int marker = advanceToMarker();
        if (marker < 0) throw Error(15);

        while (marker != sos_ && marker != eoi_ && search > 0) {
            // Read size and signature (ok if this hits EOF)
            std::memset(buf.pData_, 0x0, buf.size_);
            bufRead = io_->read(buf.pData_, bufMinSize);
            if (io_->error()) throw Error(14);
            if (bufRead < 2) throw Error(15);
            uint16_t size = getUShort(buf.pData_, bigEndian);

            if (foundPsData && marker != app13_) {
                // For IPTC, decrement search only after all app13 segments are
                // loaded, assuming they all appear in sequence. But decode IPTC
                // data after the loop, in case an app13 is the last segment
                // before sos or eoi.
                foundPsData = false;
                if (--search == 0) break;
            }

            if (   !foundExifData
                && marker == app1_ && memcmp(buf.pData_ + 2, exifId_, 6) == 0) {
                if (size < 8) {
                    rc = 1;
                    break;
                }
                // Seek to beginning and read the Exif data
                io_->seek(8 - bufRead, BasicIo::cur);
                DataBuf rawExif(size - 8);
                io_->read(rawExif.pData_, rawExif.size_);
                if (io_->error() || io_->eof()) throw Error(14);
                ByteOrder bo = ExifParser::decode(exifData_, rawExif.pData_, rawExif.size_);
                setByteOrder(bo);
                if (rawExif.size_ > 0 && byteOrder() == invalidByteOrder) {
#ifndef SUPPRESS_WARNINGS
                    std::cerr << "Warning: Failed to decode Exif metadata.\n";
#endif
                    exifData_.clear();
                }
                --search;
                foundExifData = true;
            }
            else if (marker == app1_ && memcmp(buf.pData_ + 2, xmpId_, 29) == 0) {
                if (size < 31) {
                    rc = 6;
                    break;
                }
                // Seek to beginning and read the XMP packet
                io_->seek(31 - bufRead, BasicIo::cur);
                DataBuf xmpPacket(size - 31);
                io_->read(xmpPacket.pData_, xmpPacket.size_);
                if (io_->error() || io_->eof()) throw Error(14);
                xmpPacket_.assign(reinterpret_cast<char*>(xmpPacket.pData_), xmpPacket.size_);
                if (xmpPacket_.size() > 0 && XmpParser::decode(xmpData_, xmpPacket_)) {
#ifndef SUPPRESS_WARNINGS
                    std::cerr << "Warning: Failed to decode XMP metadata.\n";
#endif
                }
                --search;
            }
            else if (   marker == app13_
                     && memcmp(buf.pData_ + 2, Photoshop::ps3Id_, 14) == 0) {
                if (size < 16) {
                    rc = 2;
                    break;
                }
                // Read the rest of the APP13 segment
                io_->seek(16 - bufRead, BasicIo::cur);
                DataBuf psData(size - 16);
                io_->read(psData.pData_, psData.size_);
                if (io_->error() || io_->eof()) throw Error(14);
                const byte *record = 0;
                uint32_t sizeIptc = 0;
                uint32_t sizeHdr = 0;
#ifdef DEBUG
                std::cerr << "Found app13 segment, size = " << size << "\n";
                //hexdump(std::cerr, psData.pData_, psData.size_);
#endif
                // Find actual IPTC data within the APP13 segment
                const byte* pEnd = psData.pData_ + psData.size_;
                const byte* pCur = psData.pData_;
                while (   pCur < pEnd
                       && 0 == Photoshop::locateIptcIrb(pCur,
                                                        static_cast<long>(pEnd - pCur),
                                                        &record,
                                                        &sizeHdr,
                                                        &sizeIptc)) {
                    if (sizeIptc) {
#ifdef DEBUG
                        std::cerr << "Found IPTC IRB, size = " << sizeIptc << "\n";
#endif
                        append(iptcBlob, record + sizeHdr, sizeIptc);
                    }
                    pCur = record + sizeHdr + sizeIptc;
                    pCur += (sizeIptc & 1);
                }
                foundPsData = true;
            }
            else if (marker == com_ && comment_.empty())
            {
                if (size < 2) {
                    rc = 3;
                    break;
                }
                // JPEGs can have multiple comments, but for now only read
                // the first one (most jpegs only have one anyway). Comments
                // are simple single byte ISO-8859-1 strings.
                io_->seek(2 - bufRead, BasicIo::cur);
                DataBuf comment(size - 2);
                io_->read(comment.pData_, comment.size_);
                if (io_->error() || io_->eof()) throw Error(14);
                comment_.assign(reinterpret_cast<char*>(comment.pData_), comment.size_);
                while (   comment_.length()
                       && comment_.at(comment_.length()-1) == '\0') {
                    comment_.erase(comment_.length()-1);
                }
                --search;
            }
            else if (   pixelHeight_ == 0
                     && (   marker == sof0_  || marker == sof1_  || marker == sof2_
                         || marker == sof3_  || marker == sof5_  || marker == sof6_
                         || marker == sof7_  || marker == sof9_  || marker == sof10_
                         || marker == sof11_ || marker == sof13_ || marker == sof14_
                         || marker == sof15_)) {
                // We hit a SOFn (start-of-frame) marker
                if (size < 8) {
                    rc = 7;
                    break;
                }
                pixelHeight_ = getUShort(buf.pData_ + 3, bigEndian);
                pixelWidth_ = getUShort(buf.pData_ + 5, bigEndian);
                if (pixelHeight_ != 0) --search;
                // Skip the remainder of the segment
                io_->seek(size-bufRead, BasicIo::cur);
            }
            else {
                if (size < 2) {
                    rc = 4;
                    break;
                }
                // Skip the remainder of the unknown segment
                if (io_->seek(size - bufRead, BasicIo::cur)) throw Error(14);
            }
            // Read the beginning of the next segment
            marker = advanceToMarker();
            if (marker < 0) {
                rc = 5;
                break;
            }
        } // while there are segments to process

        if (   iptcBlob.size() > 0
            && IptcParser::decode(iptcData_,
                                  &iptcBlob[0],
                                  static_cast<uint32_t>(iptcBlob.size()))) {
#ifndef SUPPRESS_WARNINGS
            std::cerr << "Warning: Failed to decode IPTC metadata.\n";
#endif
            iptcData_.clear();
        }

        if (rc != 0) {
#ifndef SUPPRESS_WARNINGS
            std::cerr << "Warning: JPEG format error, rc = " << rc << "\n";
#endif
        }
    } // JpegBase::readMetadata
コード例 #13
0
ファイル: UTF32Encoding.cpp プロジェクト: Chingliu/poco
UTF32Encoding::UTF32Encoding(int byteOrderMark)
{
	setByteOrder(byteOrderMark);
}
コード例 #14
0
ファイル: UTF32Encoding.cpp プロジェクト: Chingliu/poco
UTF32Encoding::UTF32Encoding(ByteOrderType byteOrder)
{
	setByteOrder(byteOrder);
}
コード例 #15
0
ファイル: psdimage.cpp プロジェクト: jmue/exiv2
    void PsdImage::readResourceBlock(uint16_t resourceId, uint32_t resourceSize)
    {
        switch(resourceId)
        {
            case kPhotoshopResourceID_IPTC_NAA:
            {
                DataBuf rawIPTC(resourceSize);
                io_->read(rawIPTC.pData_, rawIPTC.size_);
                if (io_->error() || io_->eof()) throw Error(14);
                if (IptcParser::decode(iptcData_, rawIPTC.pData_, rawIPTC.size_)) {
#ifndef SUPPRESS_WARNINGS
                    EXV_WARNING << "Failed to decode IPTC metadata.\n";
#endif
                    iptcData_.clear();
                }
                break;
            }

            case kPhotoshopResourceID_ExifInfo:
            {
                DataBuf rawExif(resourceSize);
                io_->read(rawExif.pData_, rawExif.size_);
                if (io_->error() || io_->eof()) throw Error(14);
                ByteOrder bo = ExifParser::decode(exifData_, rawExif.pData_, rawExif.size_);
                setByteOrder(bo);
                if (rawExif.size_ > 0 && byteOrder() == invalidByteOrder) {
#ifndef SUPPRESS_WARNINGS
                    EXV_WARNING << "Failed to decode Exif metadata.\n";
#endif
                    exifData_.clear();
                }
                break;
            }

            case kPhotoshopResourceID_XMPPacket:
            {
                DataBuf xmpPacket(resourceSize);
                io_->read(xmpPacket.pData_, xmpPacket.size_);
                if (io_->error() || io_->eof()) throw Error(14);
                xmpPacket_.assign(reinterpret_cast<char *>(xmpPacket.pData_), xmpPacket.size_);
                if (xmpPacket_.size() > 0 && XmpParser::decode(xmpData_, xmpPacket_)) {
#ifndef SUPPRESS_WARNINGS
                    EXV_WARNING << "Failed to decode XMP metadata.\n";
#endif
                }
                break;
            }

            // - PS 4.0 preview data is fetched from ThumbnailResource
            // - PS >= 5.0 preview data is fetched from ThumbnailResource2
            case kPhotoshopResourceID_ThumbnailResource:
            case kPhotoshopResourceID_ThumbnailResource2:
            {
                /*
                  Photoshop thumbnail resource header

                  offset  length    name            description
                  ======  ========  ====            ===========
                   0      4 bytes   format          = 1 (kJpegRGB). Also supports kRawRGB (0).
                   4      4 bytes   width           Width of thumbnail in pixels.
                   8      4 bytes   height          Height of thumbnail in pixels.
                  12      4 bytes   widthbytes      Padded row bytes as (width * bitspixel + 31) / 32 * 4.
                  16      4 bytes   size            Total size as widthbytes * height * planes
                  20      4 bytes   compressedsize  Size after compression. Used for consistentcy check.
                  24      2 bytes   bitspixel       = 24. Bits per pixel.
                  26      2 bytes   planes          = 1. Number of planes.
                  28      variable  data            JFIF data in RGB format.
                                                    Note: For resource ID 1033 the data is in BGR format.
                */
                byte buf[28];
                if (io_->read(buf, 28) != 28)
                {
                    throw Error(3, "Photoshop");
                }
                NativePreview nativePreview;
                nativePreview.position_ = io_->tell();
                nativePreview.size_ = getLong(buf + 20, bigEndian);    // compressedsize
                nativePreview.width_ = getLong(buf + 4, bigEndian);
                nativePreview.height_ = getLong(buf + 8, bigEndian);
                const uint32_t format = getLong(buf + 0, bigEndian);

                if (nativePreview.size_ > 0 && nativePreview.position_ >= 0) {
                    io_->seek(static_cast<long>(nativePreview.size_), BasicIo::cur);
                    if (io_->error() || io_->eof()) throw Error(14);

                    if (format == 1) {
                        nativePreview.filter_ = "";
                        nativePreview.mimeType_ = "image/jpeg";
                        nativePreviews_.push_back(nativePreview);
                    } else {
                        // unsupported format of native preview
                    }
                }
                break;
            }

            default:
            {
                break;
            }
        }
    } // PsdImage::readResourceBlock