public async Task <ImageInfo> DecodeAsync(Stream imageStream)
{
var output = default(ImageInfo);
try
{
var decoder = await BitmapDecoder.CreateAsync(imageStream.AsRandomAccessStream()).AsTask().ConfigureAwait(false);
var codecId = decoder.DecoderInformation.CodecId;
if (codecId == BitmapDecoder.BmpDecoderId)
{
output = ImageInfo.Bmp((int)decoder.PixelWidth, (int)decoder.PixelHeight);
}
else if (codecId == BitmapDecoder.GifDecoderId)
{
output = ImageInfo.Gif((int)decoder.PixelWidth, (int)decoder.PixelHeight);
}
else if (codecId == BitmapDecoder.JpegDecoderId)
{
output = ImageInfo.Jpeg((int)decoder.PixelWidth, (int)decoder.PixelHeight);
}
else if (codecId == BitmapDecoder.PngDecoderId)
{
output = ImageInfo.Png((int)decoder.PixelWidth, (int)decoder.PixelHeight);
}
}
catch
{
output = null;
}
return(output);
}
public async Task <ImageInfo> DecodeAsync(Stream imageStream)
{
var output = default(ImageInfo);
try
{
var format = await Image.DetectFormatAsync(imageStream).ConfigureAwait(false);
if (format != null)
{
var imageInfo = Image.Identify(imageStream);
if (SixLabors.ImageSharp.Formats.Bmp.BmpFormat.Instance.MimeTypes.Contains(format.DefaultMimeType))
{
output = ImageInfo.Bmp(imageInfo.Width, imageInfo.Height);
}
else if (SixLabors.ImageSharp.Formats.Gif.GifFormat.Instance.MimeTypes.Contains(format.DefaultMimeType))
{
output = ImageInfo.Gif(imageInfo.Width, imageInfo.Height);
}
else if (SixLabors.ImageSharp.Formats.Jpeg.JpegFormat.Instance.MimeTypes.Contains(format.DefaultMimeType))
{
output = ImageInfo.Jpeg(imageInfo.Width, imageInfo.Height);
}
else if (SixLabors.ImageSharp.Formats.Png.PngFormat.Instance.MimeTypes.Contains(format.DefaultMimeType))
{
output = ImageInfo.Png(imageInfo.Width, imageInfo.Height);
}
}
}
catch
{
output = null;
}
return(output);
}
public Task <ImageInfo> DecodeAsync(Stream imageStream)
{
var output = default(ImageInfo);
try
{
var decoder = BitmapDecoder.Create(imageStream, BitmapCreateOptions.None, BitmapCacheOption.None);
if (decoder != null)
{
var frame = decoder.Frames[0];
if (decoder is BmpBitmapDecoder)
{
output = ImageInfo.Bmp(frame.PixelWidth, frame.PixelHeight);
}
else if (decoder is GifBitmapDecoder)
{
output = ImageInfo.Gif(frame.PixelWidth, frame.PixelHeight);
}
else if (decoder is JpegBitmapDecoder)
{
output = ImageInfo.Jpeg(frame.PixelWidth, frame.PixelHeight);
}
else if (decoder is PngBitmapDecoder)
{
output = ImageInfo.Png(frame.PixelWidth, frame.PixelHeight);
}
}
}
catch
{
output = null;
}
return(Task.FromResult(output));
}
