private void ParseJpgMetaData(string filename, MediaFileMetaData metaData)
{
// https://github.com/drewnoakes/metadata-extractor-images/blob/master/jpg/metadata/dotnet/FujiFilm%20X10.jpg.txt
var metadataExtractorDirectories = ImageMetadataReader.ReadMetadata(filename); // very fast!
var exifIfd0Directory = metadataExtractorDirectories.OfType <ExifIfd0Directory>().FirstOrDefault();
var cameraModel = exifIfd0Directory?.GetDescription(ExifDirectoryBase.TagModel);
var copyright = exifIfd0Directory?.GetDescription(ExifDirectoryBase.TagCopyright)?.Trim();
var subIfdDirectory = metadataExtractorDirectories.OfType <ExifSubIfdDirectory>().FirstOrDefault(); // contains image related data
var exposureTime = subIfdDirectory?.GetDescription(ExifDirectoryBase.TagExposureTime);
var isoSpeed = subIfdDirectory?.GetDescription(ExifDirectoryBase.TagIsoEquivalent);
var focalLength = subIfdDirectory?.GetDescription(ExifDirectoryBase.TagFocalLength);
var dateTimeTakenString = subIfdDirectory?.GetDescription(ExifDirectoryBase.TagDateTimeOriginal);
var aperture = subIfdDirectory?.GetDescription(ExifDirectoryBase.TagAperture);
var widthInPixel = subIfdDirectory?.GetDescription(ExifDirectoryBase.TagExifImageWidth);
var heightInPixel = subIfdDirectory?.GetDescription(ExifDirectoryBase.TagExifImageHeight);
metaData.Copyright = copyright;
metaData.CameraModel = cameraModel;
metaData.Width = widthInPixel;
metaData.Height = heightInPixel;
metaData.IsoValue = isoSpeed;
metaData.ExposureTime = exposureTime;
metaData.FocalLength = focalLength;
metaData.Aperture = aperture;
metaData.DateTakenString = dateTimeTakenString;
metaData.DateTaken = ParseExifDate(dateTimeTakenString);
}
public List <MediaFileMetaData> ReadAllFiles(string selectedFolder)
{
var result = new List <MediaFileMetaData>();
if (string.IsNullOrWhiteSpace(selectedFolder) || !Directory.Exists(selectedFolder))
{
return(result);
}
var files = Directory.GetFiles(selectedFolder).ToList();
foreach (var file in files)
{
var metaData = new MediaFileMetaData();
try
{
var fileInfo = new FileInfo(file);
metaData.FilePath = fileInfo.DirectoryName;
metaData.CurrentFilename = fileInfo.Name;
metaData.FileSize = fileInfo.Length;
metaData.FileType = GetFileType(file);
switch (metaData.FileType)
{
case FileTypeEnum.Jpg:
ParseJpgMetaData(file, metaData);
break;
case FileTypeEnum.Mp4:
ParseMp4MetaData(file, metaData);
break;
case FileTypeEnum.Undefined:
metaData.IncludeInRenaming = false;
break;
}
}
catch (Exception e)
{
metaData.ParsingRemarks += $"Error: {e.Message}";
Console.WriteLine(e);
}
result.Add(metaData);
}
return(result.OrderBy(mf => mf.DateTaken ?? new DateTime()).ToList());
}
private string ReplaceCustomFields(string template, MediaFileMetaData mediaFile)
{
var newFilename = template;
if (template.Contains("%F1"))
{
newFilename = newFilename.Replace("%F1", mediaFile.CustomField1);
}
if (template.Contains("%V"))
{
var isVideo = mediaFile.FileType == FileTypeEnum.Mp4 || mediaFile.FileType == FileTypeEnum.Mov;
newFilename = newFilename.Replace("%V", isVideo ? "v" : "");
}
return(newFilename);
}
private string ReplaceDateFields(string template, MediaFileMetaData mediaFile)
{
var newFilename = template;
if (template.Contains("%Y"))
{
newFilename = newFilename.Replace("%Y", mediaFile.DateTaken?.Year.ToString());
}
if (template.Contains("%M"))
{
newFilename = newFilename.Replace("%M", mediaFile.DateTaken?.Month.ToString().PadLeft(2, '0'));
}
newFilename = newFilename.Replace("%D", mediaFile.DateTaken?.Day.ToString().PadLeft(2, '0'));
return(newFilename);
}
private void ParseMp4MetaData(string filename, MediaFileMetaData metaData)
{
// https://github.com/drewnoakes/metadata-extractor-images/blob/master/mp4/metadata/dotnet/sample_mpeg4.mp4.txt
var metadataExtractorDirectories = ImageMetadataReader.ReadMetadata(filename); // very fast!
var quickTimeMovieHeader = metadataExtractorDirectories.OfType <QuickTimeMovieHeaderDirectory>().FirstOrDefault();
var dateTimeTakenString = quickTimeMovieHeader?.GetDescription(QuickTimeMovieHeaderDirectory.TagCreated);
var quickTimeTrackHeaderLast = metadataExtractorDirectories.OfType <QuickTimeTrackHeaderDirectory>().FirstOrDefault();
var widthInPixel = quickTimeTrackHeaderLast?.GetDescription(QuickTimeTrackHeaderDirectory.TagWidth);
var heightInPixel = quickTimeTrackHeaderLast?.GetDescription(QuickTimeTrackHeaderDirectory.TagHeight);
//metaData.CameraModel = cameraModel;
metaData.Width = widthInPixel;
metaData.Height = heightInPixel;
metaData.DateTakenString = dateTimeTakenString;
metaData.DateTaken = ParseMp4Date(dateTimeTakenString);
}