Picture Chooser on Windows phone smash images with exif rotation

[baumerik]

If you choose an image from Library which have a Exif Rotation stored the image is destroyed see Attachments:

• Image with exif orientation
• Image without exif orientation
• Result with exif rotation

The Lumia Camera App, which is default, always store the rotation as Exif Property. So every image taken by this camera app cannot be selected.

we use this function:

var pictureChooserTask = Mvx.Resolve<IMvxPictureChooserTask>();
return await pictureChooserTask.ChoosePictureFromLibraryAsync(1280, 75);

as fix we have ignored the rotation on processing the image(see my Commit).

var pixelData = await decoder.GetPixelDataAsync(
                BitmapPixelFormat.Rgba8,
                BitmapAlphaMode.Straight,
                transform,
                ExifOrientationMode.RespectExifOrientation,
                ColorManagementMode.DoNotColorManage);

Changed to this

var pixelData = await decoder.GetPixelDataAsync(
                BitmapPixelFormat.Rgba8,
                BitmapAlphaMode.Straight,
                transform,
                ExifOrientationMode.IgnoreExifOrientation,
                ColorManagementMode.DoNotColorManage);

Is this a solution or prefer you another way?