/// <summary>
/// Читает угол поворота из EXIF
/// </summary>
/// <param name="file"></param>
/// <param name="exifRotationAngle"></param>
public static void ReadRotationAngleFromEXIF(string file, out RotationAngle exifRotationAngle)
{
exifRotationAngle = RotationAngle.Zero;
using (StreamOnFile newStreamOnFile = new StreamOnFile(file))
{
IImageDecoder newIImageDecoder;
OpenNETCF.Drawing.Imaging.IImagingFactory newImagingFactory = new OpenNETCF.Drawing.Imaging.ImagingFactoryClass();
int r = newImagingFactory.CreateImageDecoder(newStreamOnFile, DecoderInitFlag.DecoderInitFlagNone, out newIImageDecoder);
// Ниже используется своя функция обработки EXIF, так как на Philips попытка проверить
// jpeg из-за некорректных данных рушится в COM. Это случается из-за параметра DecoderInitFlag.DecoderInitFlagNone
// ImageProperty[] items = ImageUtils.GetAllProperties(newIImageDecoder);
ImageProperty[] items = GetAllPropertiesInternal(newIImageDecoder);
if (items.Length == 0)
{
newImagingFactory.CreateImageDecoder(newStreamOnFile, DecoderInitFlag.DecoderInitFlagBuiltIn1st, out newIImageDecoder);
items = GetAllPropertiesInternal(newIImageDecoder);
}
foreach (ImageProperty item in items)
{
if (item.Id == ImageTag.TAG_ORIENTATION)
{
try
{
switch (Convert.ToInt16(item.GetValue()))
{
case 3:
exifRotationAngle = RotationAngle.Clockwise180;
break;
case 6:
exifRotationAngle = RotationAngle.Clockwise90;
break;
case 8:
exifRotationAngle = RotationAngle.Clockwise270;
break;
default:
throw new Exception();
break;
}
}
catch (Exception)
{
exifRotationAngle = RotationAngle.Zero;
}
}
}
}
}
/// <summary>
/// Loads specified image property from the given image
/// </summary>
/// <param name="imagePath">path to the image file</param>
/// <param name="property">Property tag</param>
/// <returns>Property</returns>
public static ImageProperty LoadProperty(string imagePath, ImageTag property)
{
if (imagePath == null)
{
throw new ArgumentNullException();
}
StreamOnFile st = new StreamOnFile(imagePath);
IImageDecoder decoder = null;
ImagingFactory factory = new ImagingFactoryClass();
factory.CreateImageDecoder(st, DecoderInitFlag.DecoderInitFlagNone, out decoder);
return(LoadProperty(decoder, property));
}
/// <summary>
/// Читает угол поворота из EXIF
/// </summary>
/// <param name="file"></param>
/// <param name="exifRotationAngle"></param>
public static void ReadRotationAngleFromEXIF(string file, out RotationAngle exifRotationAngle)
{
exifRotationAngle = RotationAngle.Zero;
using (StreamOnFile newStreamOnFile = new StreamOnFile(file))
{
IImageDecoder newIImageDecoder;
OpenNETCF.Drawing.Imaging.IImagingFactory newImagingFactory = new OpenNETCF.Drawing.Imaging.ImagingFactoryClass();
int r = newImagingFactory.CreateImageDecoder(newStreamOnFile, DecoderInitFlag.DecoderInitFlagNone, out newIImageDecoder);
// Ниже используется своя функция обработки EXIF, так как на Philips попытка проверить
// jpeg из-за некорректных данных рушится в COM. Это случается из-за параметра DecoderInitFlag.DecoderInitFlagNone
// ImageProperty[] items = ImageUtils.GetAllProperties(newIImageDecoder);
ImageProperty[] items = GetAllPropertiesInternal(newIImageDecoder);
if (items.Length == 0)
{
newImagingFactory.CreateImageDecoder(newStreamOnFile, DecoderInitFlag.DecoderInitFlagBuiltIn1st, out newIImageDecoder);
items = GetAllPropertiesInternal(newIImageDecoder);
}
foreach (ImageProperty item in items)
{
if (item.Id == ImageTag.TAG_ORIENTATION)
{
try
{
switch (Convert.ToInt16(item.GetValue()))
{
case 3:
exifRotationAngle = RotationAngle.Clockwise180;
break;
case 6:
exifRotationAngle = RotationAngle.Clockwise90;
break;
case 8:
exifRotationAngle = RotationAngle.Clockwise270;
break;
default:
throw new Exception();
break;
}
}
catch (Exception)
{
exifRotationAngle = RotationAngle.Zero;
}
}
}
}
}
