public static async Task EncodeAsync <TPixel>(
this IImageEncoderInternals encoder,
Image <TPixel> image,
Stream stream,
CancellationToken cancellationToken)
where TPixel : unmanaged, IPixel <TPixel>
{
Configuration configuration = image.GetConfiguration();
if (stream.CanSeek)
{
await DoEncodeAsync(stream).ConfigureAwait(false);
}
else
{
using var ms = new MemoryStream();
await DoEncodeAsync(ms);
ms.Position = 0;
await ms.CopyToAsync(stream, configuration.StreamProcessingBufferSize, cancellationToken)
.ConfigureAwait(false);
}
Task DoEncodeAsync(Stream innerStream)
{
try
{
encoder.Encode(image, innerStream, cancellationToken);
return(Task.CompletedTask);
}
catch (OperationCanceledException)
{
return(Task.FromCanceled(cancellationToken));
}
catch (Exception ex)
{
return(Task.FromException(ex));
}
}
}
public static void Encode <TPixel>(
this IImageEncoderInternals encoder,
Image <TPixel> image,
Stream stream)
where TPixel : unmanaged, IPixel <TPixel>
=> encoder.Encode(image, stream, default);
