/// <inheritdoc/>
public IImageInfo Identify(Configuration configuration, Stream stream)
{
Guard.NotNull(stream, nameof(stream));
using var decoder = new JpegDecoderCore(configuration, this);
return(decoder.Identify(configuration, stream));
}
/// <inheritdoc/>
public Task <Image <TPixel> > DecodeAsync <TPixel>(Configuration configuration, Stream stream, CancellationToken cancellationToken)
where TPixel : unmanaged, IPixel <TPixel>
{
Guard.NotNull(stream, nameof(stream));
using var decoder = new JpegDecoderCore(configuration, this);
return(decoder.DecodeAsync <TPixel>(configuration, stream, cancellationToken));
}
/// <inheritdoc/>
public Image <TPixel> Decode <TPixel>(Configuration configuration, Stream stream)
where TPixel : unmanaged, IPixel <TPixel>
{
Guard.NotNull(stream, nameof(stream));
using var decoder = new JpegDecoderCore(configuration, this);
return(decoder.Decode <TPixel>(configuration, stream));
}
/// <inheritdoc/>
public Task <IImageInfo> IdentifyAsync(Configuration configuration, Stream stream)
{
Guard.NotNull(stream, nameof(stream));
using var decoder = new JpegDecoderCore(configuration, this);
using var bufferedStream = new BufferedReadStream(configuration, stream);
return(decoder.IdentifyAsync(bufferedStream));
}
/// <inheritdoc/>
public async Task <IImageInfo> IdentifyAsync(Configuration configuration, Stream stream)
{
Guard.NotNull(stream, nameof(stream));
using (var decoder = new JpegDecoderCore(configuration, this))
{
return(await decoder.IdentifyAsync(stream).ConfigureAwait(false));
}
}
/// <inheritdoc/>
public Image <TPixel> Decode <TPixel>(Configuration configuration, Stream stream)
where TPixel : struct, IPixel <TPixel>
{
Guard.NotNull(stream, nameof(stream));
using (var decoder = new JpegDecoderCore(configuration, this))
{
return(decoder.Decode <TPixel>(stream));
}
}
/// <inheritdoc/>
public async Task <IImageInfo> IdentifyAsync(Configuration configuration, Stream stream, CancellationToken cancellationToken)
{
Guard.NotNull(stream, nameof(stream));
// The introduction of a local variable that refers to an object the implements
// IDisposable means you must use async/await, where the compiler generates the
// state machine and a continuation.
using (var decoder = new JpegDecoderCore(configuration, this))
{
return(await decoder.IdentifyAsync(configuration, stream, cancellationToken)
.ConfigureAwait(false));
}
}
/// <inheritdoc/>
public Image <TPixel> Decode <TPixel>(Configuration configuration, Stream stream)
where TPixel : struct, IPixel <TPixel>
{
Guard.NotNull(stream, nameof(stream));
using var decoder = new JpegDecoderCore(configuration, this);
try
{
return(decoder.Decode <TPixel>(stream));
}
catch (InvalidMemoryOperationException ex)
{
(int w, int h) = (decoder.ImageWidth, decoder.ImageHeight);
// TODO: use InvalidImageContentException here, if we decide to define it
// https://github.com/SixLabors/ImageSharp/issues/1110
throw new ImageFormatException($"Can not decode image. Failed to allocate buffers for possibly degenerate dimensions: {w}x{h}.", ex);
}
}
/// <inheritdoc/>
public Image <TPixel> Decode <TPixel>(Configuration configuration, Stream stream)
where TPixel : unmanaged, IPixel <TPixel>
{
Guard.NotNull(stream, nameof(stream));
using var decoder = new JpegDecoderCore(configuration, this);
try
{
return(decoder.Decode <TPixel>(stream));
}
catch (InvalidMemoryOperationException ex)
{
(int w, int h) = (decoder.ImageWidth, decoder.ImageHeight);
JpegThrowHelper.ThrowInvalidImageContentException($"Can not decode image. Failed to allocate buffers for possibly degenerate dimensions: {w}x{h}.", ex);
// Not reachable, as the previous statement will throw a exception.
return(null);
}
}