public void GetMetadata(FileItem fileItem)
{
try
{
PhotoUtils.WaitForFile(fileItem.FileName);
Exiv2Helper exiv2Helper = new Exiv2Helper();
exiv2Helper.Load(fileItem);
if (fileItem.FileInfo.ExifTags.ContainName("Exif.Image.Orientation"))
{
if (fileItem.FileInfo.ExifTags["Exif.Image.Orientation"] == "bottom, right")
{
fileItem.AutoRotation = 2;
}
//if (fileItem.FileInfo.ExifTags["Exif.Image.Orientation"] == "top, left")
// writeableBitmap = writeableBitmap.Rotate(180);
if (fileItem.FileInfo.ExifTags["Exif.Image.Orientation"] == "right, top")
{
fileItem.AutoRotation = 1;
}
if (fileItem.FileInfo.ExifTags["Exif.Image.Orientation"] == "left, bottom")
{
fileItem.AutoRotation = 3;
}
}
}
catch (Exception exception)
{
Log.Error("Error loading metadata ", exception);
}
}
/// <summary>
/// Will load the small thumbnail attached to file item
/// If the cach not yet generated will retun null
/// </summary>
/// <param name="fileItem"></param>
/// <param name="width">The desired with, if 0 the full size will be loaded</param>
/// <returns></returns>
public WriteableBitmap LoadSmallImage(FileItem fileItem, int width = 0)
{
if (!File.Exists(fileItem.SmallThumb))
{
return(null);
}
PhotoUtils.WaitForFile(fileItem.SmallThumb);
try
{
BitmapImage bi = new BitmapImage();
bi.BeginInit();
if (width > 0)
{
bi.DecodePixelWidth = width;
}
bi.CacheOption = BitmapCacheOption.OnLoad;
bi.UriSource = new Uri(fileItem.SmallThumb);
bi.EndInit();
WriteableBitmap bitmap = BitmapFactory.ConvertToPbgra32Format(bi);
//bitmap.Freeze();
return(bitmap);
}
catch (Exception exception)
{
Log.Error("Error loading image", exception);
}
return(null);
}
public void RemoveThumbs()
{
try
{
if (File.Exists(SmallThumb))
{
PhotoUtils.WaitForFile(SmallThumb);
File.Delete(SmallThumb);
}
if (File.Exists(LargeThumb))
{
PhotoUtils.WaitForFile(LargeThumb);
File.Delete(LargeThumb);
}
if (File.Exists(InfoFile))
{
PhotoUtils.WaitForFile(InfoFile);
File.Delete(InfoFile);
}
}
catch (Exception ex)
{
Log.Error("Unable to remove thumb data", ex);
}
}
public void LoadInfo()
{
try
{
if (File.Exists(InfoFile))
{
PhotoUtils.WaitForFile(InfoFile);
XmlSerializer mySerializer =
new XmlSerializer(typeof(FileInfo));
FileStream myFileStream = new FileStream(InfoFile, FileMode.Open);
FileInfo = (FileInfo)mySerializer.Deserialize(myFileStream);
myFileStream.Close();
}
}
catch (Exception e)
{
Log.Error(e);
}
}
public WriteableBitmap LoadImage(FileItem fileItem, bool fullres, bool showfocuspoints)
{
if (fileItem == null)
{
return(null);
}
if (!File.Exists(fileItem.LargeThumb) && !fullres)
{
return(null);
}
if (File.Exists(fileItem.InfoFile))
{
fileItem.LoadInfo();
}
if (fileItem.FileInfo == null)
{
fileItem.FileInfo = new FileInfo();
}
try
{
BitmapDecoder bmpDec = null;
if (fullres && fileItem.IsRaw)
{
try
{
string dcraw_exe = Path.Combine(Settings.ApplicationFolder, "dcraw.exe");
if (File.Exists(dcraw_exe))
{
string thumb = Path.Combine(Path.GetTempPath(),
Path.GetFileNameWithoutExtension(fileItem.FileName) + ".thumb.jpg");
PhotoUtils.RunAndWait(dcraw_exe,
string.Format(" -e -O \"{0}\" \"{1}\"", thumb, fileItem.FileName));
if (File.Exists(thumb))
{
bmpDec = BitmapDecoder.Create(new Uri(thumb), BitmapCreateOptions.None, BitmapCacheOption.OnLoad);
File.Delete(thumb);
}
}
}
catch (Exception exception)
{
Log.Error("Error get dcraw thumb", exception);
}
}
PhotoUtils.WaitForFile(fullres ? fileItem.FileName : fileItem.LargeThumb);
if (bmpDec == null)
{
bmpDec = BitmapDecoder.Create(new Uri(fullres ? fileItem.FileName : fileItem.LargeThumb),
BitmapCreateOptions.None,
BitmapCacheOption.OnLoad);
}
// if no future processing required
if (!showfocuspoints && ServiceProvider.Settings.RotateIndex == 0 && !ServiceProvider.Settings.FlipPreview)
{
fileItem.Loading = false;
var b = new WriteableBitmap(bmpDec.Frames[0]);
b.Freeze();
return(b);
}
var bitmap = BitmapFactory.ConvertToPbgra32Format(bmpDec.Frames[0]);
if (showfocuspoints && !fileItem.Transformed)
{
DrawFocusPoints(fileItem, bitmap);
}
if (ServiceProvider.Settings.RotateIndex != 0)
{
switch (ServiceProvider.Settings.RotateIndex)
{
case 1:
bitmap = bitmap.Rotate(90);
break;
case 2:
bitmap = bitmap.Rotate(180);
break;
case 3:
bitmap = bitmap.Rotate(270);
break;
}
}
if (ServiceProvider.Settings.FlipPreview)
{
bitmap = bitmap.Flip(WriteableBitmapExtensions.FlipMode.Vertical);
}
bitmap.Freeze();
return(bitmap);
}
catch (Exception exception)
{
Log.Error("Error loading image", exception);
if (exception.GetType() == typeof(OutOfMemoryException) && fullres)
{
return(LoadImage(fileItem, false));
}
}
return(null);
}
public void GenerateCache(FileItem fileItem)
{
bool deleteFile = false;
if (fileItem == null)
{
return;
}
if (!File.Exists(fileItem.FileName))
{
return;
}
if ((File.Exists(fileItem.LargeThumb) && File.Exists(fileItem.SmallThumb)) && File.Exists(fileItem.InfoFile))
{
return;
}
if (fileItem.Loading)
{
return;
}
fileItem.Loading = true;
PhotoUtils.WaitForFile(fileItem.FileName);
string filename = fileItem.FileName;
if (fileItem.IsMovie)
{
try
{
string ffmpeg_exe = Path.Combine(Settings.ApplicationFolder, "ffmpeg.exe");
if (File.Exists(ffmpeg_exe))
{
string thumb = Path.Combine(Path.GetDirectoryName(fileItem.FileName),
Path.GetFileNameWithoutExtension(fileItem.FileName) + ".thumb.jpg");
PhotoUtils.RunAndWait(ffmpeg_exe, String.Format("-i \"{0}\" -ss 00:00:01.000 -f image2 -vframes 1 \"{1}\"", fileItem.FileName, thumb));
if (File.Exists(thumb))
{
deleteFile = true;
filename = thumb;
}
}
}
catch (Exception exception)
{
Log.Error("Error get video thumb", exception);
}
}
if (fileItem.IsRaw)
{
try
{
string dcraw_exe = Path.Combine(Settings.ApplicationFolder, "dcraw.exe");
if (File.Exists(dcraw_exe))
{
string thumb = Path.Combine(Path.GetTempPath(),
Path.GetFileNameWithoutExtension(fileItem.FileName) + ".thumb.jpg");
PhotoUtils.RunAndWait(dcraw_exe,
string.Format(" -e -O \"{0}\" \"{1}\"", thumb, fileItem.FileName));
if (File.Exists(thumb))
{
deleteFile = true;
filename = thumb;
}
}
}
catch (Exception exception)
{
Log.Error("Error get dcraw thumb", exception);
}
}
GetMetadata(fileItem);
try
{
using (MagickImage image = new MagickImage(filename))
{
fileItem.FileInfo.SetSize(image.Width, image.Height);
double dw = (double)LargeThumbSize / image.Width;
image.FilterType = FilterType.Box;
image.Thumbnail((int)(image.Width * dw), (int)(image.Height * dw));
if (!ServiceProvider.Settings.DisableHardwareAccelerationNew)
{
image.UnsharpMask(1, 1, 0.5, 0.1);
}
PhotoUtils.CreateFolder(fileItem.LargeThumb);
image.Write(fileItem.LargeThumb);
fileItem.IsLoaded = true;
fileItem.Loading = false;
dw = (double)SmallThumbSize / image.Width;
image.Thumbnail((int)(image.Width * dw), (int)(image.Height * dw));
if (!ServiceProvider.Settings.DisableHardwareAccelerationNew)
{
image.UnsharpMask(1, 1, 0.5, 0.1);
}
PhotoUtils.CreateFolder(fileItem.SmallThumb);
image.Write(fileItem.SmallThumb);
fileItem.Thumbnail = LoadImage(fileItem.SmallThumb);
}
fileItem.SaveInfo();
SetImageInfo(fileItem);
if (deleteFile)
{
File.Delete(filename);
}
OnMetaDataUpdated(fileItem);
}
catch (Exception exception)
{
Log.Error("Error generating cache " + fileItem.FileName, exception);
}
fileItem.Loading = false;
}