public (int width, int height) GetSize(Stream inputContent)
{
using var input = DrImage.FromStream(inputContent);
inputContent.Position = 0;
using var imageReader = new ImagePropertyReader(inputContent);
int width = input.Width;
int height = input.Height;
ImagePropertyReader.Orientation?orientation = imageReader.FindOrientation();
if (orientation != null)
{
switch (orientation.Value)
{
case ImagePropertyReader.Orientation.D270:
case ImagePropertyReader.Orientation.D90:
int tmp = width;
width = height;
height = tmp;
break;
}
}
return(width, height);
}
private void EnsureExifImageRotation(DrImage image, Stream imageContent)
{
imageContent.Position = 0;
using (var imageReader = new ImagePropertyReader(imageContent))
{
ImagePropertyReader.Orientation?orientation = imageReader.FindOrientation();
if (orientation != null)
{
switch (orientation.Value)
{
case ImagePropertyReader.Orientation.D270:
image.RotateFlip(RotateFlipType.Rotate90FlipNone);
break;
case ImagePropertyReader.Orientation.D180:
image.RotateFlip(RotateFlipType.Rotate180FlipNone);
break;
case ImagePropertyReader.Orientation.D90:
image.RotateFlip(RotateFlipType.Rotate270FlipNone);
break;
}
}
}
}
private void SetProperties(Image entity, Stream imageContent, bool isWhenIncluded = true)
{
using (ImagePropertyReader propertyReader = new ImagePropertyReader(imageContent))
{
entity.Location.Longitude = propertyReader.FindLongitude();
entity.Location.Latitude = propertyReader.FindLatitude();
entity.Location.Altitude = propertyReader.FindAltitude();
if (isWhenIncluded)
{
DateTime?when = propertyReader.FindTakenWhen();
if (when != null)
{
entity.When = when.Value;
}
}
}
}