public XmpDirectory Extract([NotNull] byte[] xmpBytes, int offset, int length)
{
if (offset < 0)
{
throw new ArgumentOutOfRangeException(nameof(offset), "Must be zero or greater.");
}
if (length < 0)
{
throw new ArgumentOutOfRangeException(nameof(length), "Must be zero or greater.");
}
if (xmpBytes.Length < offset + length)
{
throw new ArgumentException("Extends beyond length of byte array.", nameof(length));
}
// Trim any trailing null bytes
// https://github.com/drewnoakes/metadata-extractor-dotnet/issues/154
while (xmpBytes[offset + length - 1] == 0)
{
length--;
}
var directory = new XmpDirectory();
try
{
var xmpMeta = XmpMetaFactory.ParseFromBuffer(xmpBytes, offset, length);
directory.SetXmpMeta(xmpMeta);
}
catch (XmpException e)
{
directory.AddError("Error processing XMP data: " + e.Message);
}
return(directory);
}
public DirectoryList ReadJpegSegments(IEnumerable <JpegSegment> segments)
{
// Ensure collection materialised (avoiding multiple lazy enumeration)
segments = segments.ToList();
var directories = segments
.Where(IsXmpSegment)
.Select(segment => Extract(segment.Bytes, JpegSegmentPreambleBytes.Length, segment.Bytes.Length - JpegSegmentPreambleBytes.Length))
.Cast <Directory>()
.ToList();
var extensionGroups = segments.Where(IsExtendedXmpSegment).GroupBy(GetExtendedDataGuid);
foreach (var extensionGroup in extensionGroups)
{
var buffer = new MemoryStream();
foreach (var segment in extensionGroup)
{
var N = JpegSegmentPreambleExtensionBytes.Length + 32 + 4 + 4;
buffer.Write(segment.Bytes, N, segment.Bytes.Length - N);
}
buffer.Position = 0;
var directory = new XmpDirectory();
var xmpMeta = XmpMetaFactory.Parse(buffer);
directory.SetXmpMeta(xmpMeta);
directories.Add(directory);
}
return(directories);
}
/// <exception cref="XmpException"/>
private static void ProcessXmpTags(XmpDirectory directory, IXmpMeta xmpMeta)
{
// store the XMPMeta object on the directory in case others wish to use it
directory.SetXmpMeta(xmpMeta);
// read all the tags and send them to the directory
// I've added some popular tags, feel free to add more tags
ProcessXmpTag(xmpMeta, directory, XmpDirectory.TagLensInfo, FormatType.String);
ProcessXmpTag(xmpMeta, directory, XmpDirectory.TagLens, FormatType.String);
ProcessXmpTag(xmpMeta, directory, XmpDirectory.TagCameraSerialNumber, FormatType.String);
ProcessXmpTag(xmpMeta, directory, XmpDirectory.TagFirmware, FormatType.String);
ProcessXmpTag(xmpMeta, directory, XmpDirectory.TagMake, FormatType.String);
ProcessXmpTag(xmpMeta, directory, XmpDirectory.TagModel, FormatType.String);
ProcessXmpTag(xmpMeta, directory, XmpDirectory.TagExposureTime, FormatType.String);
ProcessXmpTag(xmpMeta, directory, XmpDirectory.TagExposureProgram, FormatType.Int);
ProcessXmpTag(xmpMeta, directory, XmpDirectory.TagApertureValue, FormatType.Rational);
ProcessXmpTag(xmpMeta, directory, XmpDirectory.TagFNumber, FormatType.Rational);
ProcessXmpTag(xmpMeta, directory, XmpDirectory.TagFocalLength, FormatType.Rational);
ProcessXmpTag(xmpMeta, directory, XmpDirectory.TagShutterSpeed, FormatType.Rational);
ProcessXmpDateTag(xmpMeta, directory, XmpDirectory.TagDateTimeOriginal);
ProcessXmpDateTag(xmpMeta, directory, XmpDirectory.TagDateTimeDigitized);
ProcessXmpTag(xmpMeta, directory, XmpDirectory.TagRating, FormatType.Double);
ProcessXmpTag(xmpMeta, directory, XmpDirectory.TagLabel, FormatType.String);
// this requires further research
// processXmpTag(xmpMeta, directory, Schema.DUBLIN_CORE_SPECIFIC_PROPERTIES, "dc:title", XmpDirectory.TAG_TITLE, FMT_STRING);
ProcessXmpTag(xmpMeta, directory, XmpDirectory.TagSubject, FormatType.StringArray);
// processXmpDateTag(xmpMeta, directory, Schema.DUBLIN_CORE_SPECIFIC_PROPERTIES, "dc:date", XmpDirectory.TAG_DATE);
// processXmpTag(xmpMeta, directory, Schema.DUBLIN_CORE_SPECIFIC_PROPERTIES, "dc:type", XmpDirectory.TAG_TYPE, FMT_STRING);
// processXmpTag(xmpMeta, directory, Schema.DUBLIN_CORE_SPECIFIC_PROPERTIES, "dc:description", XmpDirectory.TAG_DESCRIPTION, FMT_STRING);
// processXmpTag(xmpMeta, directory, Schema.DUBLIN_CORE_SPECIFIC_PROPERTIES, "dc:relation", XmpDirectory.TAG_RELATION, FMT_STRING);
// processXmpTag(xmpMeta, directory, Schema.DUBLIN_CORE_SPECIFIC_PROPERTIES, "dc:coverage", XmpDirectory.TAG_COVERAGE, FMT_STRING);
// processXmpTag(xmpMeta, directory, Schema.DUBLIN_CORE_SPECIFIC_PROPERTIES, "dc:creator", XmpDirectory.TAG_CREATOR, FMT_STRING);
// processXmpTag(xmpMeta, directory, Schema.DUBLIN_CORE_SPECIFIC_PROPERTIES, "dc:publisher", XmpDirectory.TAG_PUBLISHER, FMT_STRING);
// processXmpTag(xmpMeta, directory, Schema.DUBLIN_CORE_SPECIFIC_PROPERTIES, "dc:contributor", XmpDirectory.TAG_CONTRIBUTOR, FMT_STRING);
// processXmpTag(xmpMeta, directory, Schema.DUBLIN_CORE_SPECIFIC_PROPERTIES, "dc:rights", XmpDirectory.TAG_RIGHTS, FMT_STRING);
// processXmpTag(xmpMeta, directory, Schema.DUBLIN_CORE_SPECIFIC_PROPERTIES, "dc:format", XmpDirectory.TAG_FORMAT, FMT_STRING);
// processXmpTag(xmpMeta, directory, Schema.DUBLIN_CORE_SPECIFIC_PROPERTIES, "dc:identifier", XmpDirectory.TAG_IDENTIFIER, FMT_STRING);
// processXmpTag(xmpMeta, directory, Schema.DUBLIN_CORE_SPECIFIC_PROPERTIES, "dc:language", XmpDirectory.TAG_LANGUAGE, FMT_STRING);
// processXmpTag(xmpMeta, directory, Schema.DUBLIN_CORE_SPECIFIC_PROPERTIES, "dc:audience", XmpDirectory.TAG_AUDIENCE, FMT_STRING);
// processXmpTag(xmpMeta, directory, Schema.DUBLIN_CORE_SPECIFIC_PROPERTIES, "dc:provenance", XmpDirectory.TAG_PROVENANCE, FMT_STRING);
// processXmpTag(xmpMeta, directory, Schema.DUBLIN_CORE_SPECIFIC_PROPERTIES, "dc:rightsHolder", XmpDirectory.TAG_RIGHTS_HOLDER, FMT_STRING);
// processXmpTag(xmpMeta, directory, Schema.DUBLIN_CORE_SPECIFIC_PROPERTIES, "dc:instructionalMethod", XmpDirectory.TAG_INSTRUCTIONAL_METHOD,
// FMT_STRING);
// processXmpTag(xmpMeta, directory, Schema.DUBLIN_CORE_SPECIFIC_PROPERTIES, "dc:accrualMethod", XmpDirectory.TAG_ACCRUAL_METHOD, FMT_STRING);
// processXmpTag(xmpMeta, directory, Schema.DUBLIN_CORE_SPECIFIC_PROPERTIES, "dc:accrualPeriodicity", XmpDirectory.TAG_ACCRUAL_PERIODICITY,
// FMT_STRING);
// processXmpTag(xmpMeta, directory, Schema.DUBLIN_CORE_SPECIFIC_PROPERTIES, "dc:accrualPolicy", XmpDirectory.TAG_ACCRUAL_POLICY, FMT_STRING);
foreach (var prop in xmpMeta.Properties)
{
var path = prop.Path;
var value = prop.Value;
if (path != null && value != null)
{
directory.AddProperty(path, value);
}
}
}
private static void ProcessXmpTags([NotNull] XmpDirectory directory, [NotNull] IXmpMeta xmpMeta)
{
// store the XMPMeta object on the directory in case others wish to use it
directory.SetXmpMeta(xmpMeta);
// extract selected XMP tags
ProcessXmpTag(xmpMeta, directory, XmpDirectory.TagLensInfo, FormatType.String);
ProcessXmpTag(xmpMeta, directory, XmpDirectory.TagLens, FormatType.String);
ProcessXmpTag(xmpMeta, directory, XmpDirectory.TagCameraSerialNumber, FormatType.String);
ProcessXmpTag(xmpMeta, directory, XmpDirectory.TagFirmware, FormatType.String);
ProcessXmpTag(xmpMeta, directory, XmpDirectory.TagMake, FormatType.String);
ProcessXmpTag(xmpMeta, directory, XmpDirectory.TagModel, FormatType.String);
ProcessXmpTag(xmpMeta, directory, XmpDirectory.TagExposureTime, FormatType.String);
ProcessXmpTag(xmpMeta, directory, XmpDirectory.TagExposureProgram, FormatType.Int);
ProcessXmpTag(xmpMeta, directory, XmpDirectory.TagApertureValue, FormatType.Rational);
ProcessXmpTag(xmpMeta, directory, XmpDirectory.TagFNumber, FormatType.Rational);
ProcessXmpTag(xmpMeta, directory, XmpDirectory.TagFocalLength, FormatType.Rational);
ProcessXmpTag(xmpMeta, directory, XmpDirectory.TagShutterSpeed, FormatType.Rational);
ProcessXmpTag(xmpMeta, directory, XmpDirectory.TagDateTimeOriginal, FormatType.String);
ProcessXmpTag(xmpMeta, directory, XmpDirectory.TagDateTimeDigitized, FormatType.String);
ProcessXmpTag(xmpMeta, directory, XmpDirectory.TagBaseUrl, FormatType.String);
ProcessXmpTag(xmpMeta, directory, XmpDirectory.TagCreateDate, FormatType.String);
ProcessXmpTag(xmpMeta, directory, XmpDirectory.TagCreatorTool, FormatType.String);
ProcessXmpTag(xmpMeta, directory, XmpDirectory.TagIdentifier, FormatType.String);
ProcessXmpTag(xmpMeta, directory, XmpDirectory.TagMetadataDate, FormatType.String);
ProcessXmpTag(xmpMeta, directory, XmpDirectory.TagModifyDate, FormatType.String);
ProcessXmpTag(xmpMeta, directory, XmpDirectory.TagNickname, FormatType.String);
ProcessXmpTag(xmpMeta, directory, XmpDirectory.TagRating, FormatType.Double);
ProcessXmpTag(xmpMeta, directory, XmpDirectory.TagLabel, FormatType.String);
ProcessXmpTag(xmpMeta, directory, XmpDirectory.TagSubject, FormatType.StringArray);
// this requires further research
// ProcessXmpTag(xmpMeta, directory, Schema.DUBLIN_CORE_SPECIFIC_PROPERTIES, "dc:title", XmpDirectory.TAG_TITLE, FMT_STRING);
// ProcessXmpDateTag(xmpMeta, directory, Schema.DUBLIN_CORE_SPECIFIC_PROPERTIES, "dc:date", XmpDirectory.TAG_DATE);
// ProcessXmpTag(xmpMeta, directory, Schema.DUBLIN_CORE_SPECIFIC_PROPERTIES, "dc:type", XmpDirectory.TAG_TYPE, FMT_STRING);
// ProcessXmpTag(xmpMeta, directory, Schema.DUBLIN_CORE_SPECIFIC_PROPERTIES, "dc:description", XmpDirectory.TAG_DESCRIPTION, FMT_STRING);
// ProcessXmpTag(xmpMeta, directory, Schema.DUBLIN_CORE_SPECIFIC_PROPERTIES, "dc:relation", XmpDirectory.TAG_RELATION, FMT_STRING);
// ProcessXmpTag(xmpMeta, directory, Schema.DUBLIN_CORE_SPECIFIC_PROPERTIES, "dc:coverage", XmpDirectory.TAG_COVERAGE, FMT_STRING);
// ProcessXmpTag(xmpMeta, directory, Schema.DUBLIN_CORE_SPECIFIC_PROPERTIES, "dc:creator", XmpDirectory.TAG_CREATOR, FMT_STRING);
// ProcessXmpTag(xmpMeta, directory, Schema.DUBLIN_CORE_SPECIFIC_PROPERTIES, "dc:publisher", XmpDirectory.TAG_PUBLISHER, FMT_STRING);
// ProcessXmpTag(xmpMeta, directory, Schema.DUBLIN_CORE_SPECIFIC_PROPERTIES, "dc:contributor", XmpDirectory.TAG_CONTRIBUTOR, FMT_STRING);
// ProcessXmpTag(xmpMeta, directory, Schema.DUBLIN_CORE_SPECIFIC_PROPERTIES, "dc:rights", XmpDirectory.TAG_RIGHTS, FMT_STRING);
// ProcessXmpTag(xmpMeta, directory, Schema.DUBLIN_CORE_SPECIFIC_PROPERTIES, "dc:format", XmpDirectory.TAG_FORMAT, FMT_STRING);
// ProcessXmpTag(xmpMeta, directory, Schema.DUBLIN_CORE_SPECIFIC_PROPERTIES, "dc:identifier", XmpDirectory.TAG_IDENTIFIER, FMT_STRING);
// ProcessXmpTag(xmpMeta, directory, Schema.DUBLIN_CORE_SPECIFIC_PROPERTIES, "dc:language", XmpDirectory.TAG_LANGUAGE, FMT_STRING);
// ProcessXmpTag(xmpMeta, directory, Schema.DUBLIN_CORE_SPECIFIC_PROPERTIES, "dc:audience", XmpDirectory.TAG_AUDIENCE, FMT_STRING);
// ProcessXmpTag(xmpMeta, directory, Schema.DUBLIN_CORE_SPECIFIC_PROPERTIES, "dc:provenance", XmpDirectory.TAG_PROVENANCE, FMT_STRING);
// ProcessXmpTag(xmpMeta, directory, Schema.DUBLIN_CORE_SPECIFIC_PROPERTIES, "dc:rightsHolder", XmpDirectory.TAG_RIGHTS_HOLDER, FMT_STRING);
// ProcessXmpTag(xmpMeta, directory, Schema.DUBLIN_CORE_SPECIFIC_PROPERTIES, "dc:instructionalMethod", XmpDirectory.TAG_INSTRUCTIONAL_METHOD, FMT_STRING);
// ProcessXmpTag(xmpMeta, directory, Schema.DUBLIN_CORE_SPECIFIC_PROPERTIES, "dc:accrualMethod", XmpDirectory.TAG_ACCRUAL_METHOD, FMT_STRING);
// ProcessXmpTag(xmpMeta, directory, Schema.DUBLIN_CORE_SPECIFIC_PROPERTIES, "dc:accrualPeriodicity", XmpDirectory.TAG_ACCRUAL_PERIODICITY, FMT_STRING);
// ProcessXmpTag(xmpMeta, directory, Schema.DUBLIN_CORE_SPECIFIC_PROPERTIES, "dc:accrualPolicy", XmpDirectory.TAG_ACCRUAL_POLICY, FMT_STRING);
}
public XmpDirectory Extract([NotNull] byte[] xmpBytes, int offset, int length)
{
var directory = new XmpDirectory();
try
{
var xmpMeta = XmpMetaFactory.ParseFromBuffer(xmpBytes, offset, length);
directory.SetXmpMeta(xmpMeta);
}
catch (XmpException e)
{
directory.AddError("Error processing XMP data: " + e.Message);
}
return(directory);
}
public XmpDirectory Extract([NotNull] byte[] xmpBytes, int offset, int length)
{
if (offset < 0)
{
throw new ArgumentOutOfRangeException(nameof(offset), "Must be zero or greater.");
}
if (length < 0)
{
throw new ArgumentOutOfRangeException(nameof(length), "Must be zero or greater.");
}
if (xmpBytes.Length < offset + length)
{
throw new ArgumentException("Extends beyond length of byte array.", nameof(length));
}
// Trim any trailing null bytes
// https://github.com/drewnoakes/metadata-extractor-dotnet/issues/154
while (xmpBytes[offset + length - 1] == 0)
{
length--;
}
var directory = new XmpDirectory();
try
{
// Limit photoshop:DocumentAncestors node as it can reach over 100000 items and make parsing extremely slow.
// This is not a typical value but it may happen https://forums.adobe.com/thread/2081839
var parseOptions = new ParseOptions();
parseOptions.SetXMPNodesToLimit(new Dictionary <string, int>()
{
{ "photoshop:DocumentAncestors", 1000 }
});
var xmpMeta = XmpMetaFactory.ParseFromBuffer(xmpBytes, offset, length, parseOptions);
directory.SetXmpMeta(xmpMeta);
}
catch (XmpException e)
{
directory.AddError("Error processing XMP data: " + e.Message);
}
return(directory);
}
/// <summary>
/// Performs the XMP data extraction.
/// </summary>
/// <remarks>
/// The extraction is done with Adobe's XMPCore library.
/// </remarks>
//public XmpDirectory Extract([NotNull] string xmpString) => Extract(Encoding.UTF8.GetBytes(xmpString));
/// <exception cref="XmpException"/>
private static void ProcessXmpTags(XmpDirectory directory, IXmpMeta xmpMeta)
{
// store the XMPMeta object on the directory in case others wish to use it
directory.SetXmpMeta(xmpMeta);
// read all the tags and send them to the directory
// I've added some popular tags, feel free to add more tags
ProcessXmpTag(xmpMeta, directory, XmpDirectory.TagLensInfo, FormatType.String);
ProcessXmpTag(xmpMeta, directory, XmpDirectory.TagLens, FormatType.String);
ProcessXmpTag(xmpMeta, directory, XmpDirectory.TagCameraSerialNumber, FormatType.String);
ProcessXmpTag(xmpMeta, directory, XmpDirectory.TagFirmware, FormatType.String);
ProcessXmpTag(xmpMeta, directory, XmpDirectory.TagMake, FormatType.String);
ProcessXmpTag(xmpMeta, directory, XmpDirectory.TagModel, FormatType.String);
ProcessXmpTag(xmpMeta, directory, XmpDirectory.TagExposureTime, FormatType.String);
ProcessXmpTag(xmpMeta, directory, XmpDirectory.TagExposureProgram, FormatType.Int);
ProcessXmpTag(xmpMeta, directory, XmpDirectory.TagApertureValue, FormatType.Rational);
ProcessXmpTag(xmpMeta, directory, XmpDirectory.TagFNumber, FormatType.Rational);
ProcessXmpTag(xmpMeta, directory, XmpDirectory.TagFocalLength, FormatType.Rational);
ProcessXmpTag(xmpMeta, directory, XmpDirectory.TagShutterSpeed, FormatType.Rational);
ProcessXmpTag(xmpMeta, directory, XmpDirectory.TagDateTimeOriginal, FormatType.String);
ProcessXmpTag(xmpMeta, directory, XmpDirectory.TagDateTimeDigitized, FormatType.String);
ProcessXmpTag(xmpMeta, directory, XmpDirectory.TagBaseUrl, FormatType.String);
ProcessXmpTag(xmpMeta, directory, XmpDirectory.TagCreateDate, FormatType.String);
ProcessXmpTag(xmpMeta, directory, XmpDirectory.TagCreatorTool, FormatType.String);
ProcessXmpTag(xmpMeta, directory, XmpDirectory.TagIdentifier, FormatType.String);
ProcessXmpTag(xmpMeta, directory, XmpDirectory.TagMetadataDate, FormatType.String);
ProcessXmpTag(xmpMeta, directory, XmpDirectory.TagModifyDate, FormatType.String);
ProcessXmpTag(xmpMeta, directory, XmpDirectory.TagNickname, FormatType.String);
ProcessXmpTag(xmpMeta, directory, XmpDirectory.TagRating, FormatType.Double);
ProcessXmpTag(xmpMeta, directory, XmpDirectory.TagLabel, FormatType.String);
// this requires further research
// processXmpTag(xmpMeta, directory, Schema.DUBLIN_CORE_SPECIFIC_PROPERTIES, "dc:title", XmpDirectory.TAG_TITLE, FMT_STRING);
ProcessXmpTag(xmpMeta, directory, XmpDirectory.TagSubject, FormatType.StringArray);
// processXmpDateTag(xmpMeta, directory, Schema.DUBLIN_CORE_SPECIFIC_PROPERTIES, "dc:date", XmpDirectory.TAG_DATE);
// processXmpTag(xmpMeta, directory, Schema.DUBLIN_CORE_SPECIFIC_PROPERTIES, "dc:type", XmpDirectory.TAG_TYPE, FMT_STRING);
// processXmpTag(xmpMeta, directory, Schema.DUBLIN_CORE_SPECIFIC_PROPERTIES, "dc:description", XmpDirectory.TAG_DESCRIPTION, FMT_STRING);
// processXmpTag(xmpMeta, directory, Schema.DUBLIN_CORE_SPECIFIC_PROPERTIES, "dc:relation", XmpDirectory.TAG_RELATION, FMT_STRING);
// processXmpTag(xmpMeta, directory, Schema.DUBLIN_CORE_SPECIFIC_PROPERTIES, "dc:coverage", XmpDirectory.TAG_COVERAGE, FMT_STRING);
// processXmpTag(xmpMeta, directory, Schema.DUBLIN_CORE_SPECIFIC_PROPERTIES, "dc:creator", XmpDirectory.TAG_CREATOR, FMT_STRING);
// processXmpTag(xmpMeta, directory, Schema.DUBLIN_CORE_SPECIFIC_PROPERTIES, "dc:publisher", XmpDirectory.TAG_PUBLISHER, FMT_STRING);
// processXmpTag(xmpMeta, directory, Schema.DUBLIN_CORE_SPECIFIC_PROPERTIES, "dc:contributor", XmpDirectory.TAG_CONTRIBUTOR, FMT_STRING);
// processXmpTag(xmpMeta, directory, Schema.DUBLIN_CORE_SPECIFIC_PROPERTIES, "dc:rights", XmpDirectory.TAG_RIGHTS, FMT_STRING);
// processXmpTag(xmpMeta, directory, Schema.DUBLIN_CORE_SPECIFIC_PROPERTIES, "dc:format", XmpDirectory.TAG_FORMAT, FMT_STRING);
// processXmpTag(xmpMeta, directory, Schema.DUBLIN_CORE_SPECIFIC_PROPERTIES, "dc:identifier", XmpDirectory.TAG_IDENTIFIER, FMT_STRING);
// processXmpTag(xmpMeta, directory, Schema.DUBLIN_CORE_SPECIFIC_PROPERTIES, "dc:language", XmpDirectory.TAG_LANGUAGE, FMT_STRING);
// processXmpTag(xmpMeta, directory, Schema.DUBLIN_CORE_SPECIFIC_PROPERTIES, "dc:audience", XmpDirectory.TAG_AUDIENCE, FMT_STRING);
// processXmpTag(xmpMeta, directory, Schema.DUBLIN_CORE_SPECIFIC_PROPERTIES, "dc:provenance", XmpDirectory.TAG_PROVENANCE, FMT_STRING);
// processXmpTag(xmpMeta, directory, Schema.DUBLIN_CORE_SPECIFIC_PROPERTIES, "dc:rightsHolder", XmpDirectory.TAG_RIGHTS_HOLDER, FMT_STRING);
// processXmpTag(xmpMeta, directory, Schema.DUBLIN_CORE_SPECIFIC_PROPERTIES, "dc:instructionalMethod", XmpDirectory.TAG_INSTRUCTIONAL_METHOD, FMT_STRING);
// processXmpTag(xmpMeta, directory, Schema.DUBLIN_CORE_SPECIFIC_PROPERTIES, "dc:accrualMethod", XmpDirectory.TAG_ACCRUAL_METHOD, FMT_STRING);
// processXmpTag(xmpMeta, directory, Schema.DUBLIN_CORE_SPECIFIC_PROPERTIES, "dc:accrualPeriodicity", XmpDirectory.TAG_ACCRUAL_PERIODICITY, FMT_STRING);
// processXmpTag(xmpMeta, directory, Schema.DUBLIN_CORE_SPECIFIC_PROPERTIES, "dc:accrualPolicy", XmpDirectory.TAG_ACCRUAL_POLICY, FMT_STRING);
foreach (var prop in xmpMeta.Properties)
{
var path = prop.Path;
var value = prop.Value;
if (path != null && value != null)
directory.AddProperty(path, value);
}
}