I am trying to load an animated PNG (that I previously created successfully using ImageSharp). Unfortunately I get a NullReferenceException when loading the stream:
at SixLabors.ImageSharp.Formats.Png.PngDecoderCore.Identify(BufferedReadStream stream, CancellationToken cancellationToken)
at SixLabors.ImageSharp.Formats.ImageDecoderUtilities.Identify(IImageDecoderInternals decoder, Configuration configuration, Stream stream, CancellationToken cancellationToken)
at SixLabors.ImageSharp.Formats.Png.PngDecoder.Decode(PngDecoderOptions options, Stream stream, CancellationToken cancellationToken)
at SixLabors.ImageSharp.Formats.SpecializedImageDecoder`1.Decode(DecoderOptions options, Stream stream, CancellationToken cancellationToken)
at SixLabors.ImageSharp.Formats.ImageDecoder.<>c__DisplayClass1_0.<Decode>b__0(Stream s)
at SixLabors.ImageSharp.Formats.ImageDecoder.<WithSeekableStream>g__PeformActionAndResetPosition|11_0[T](Stream s, Int64 position, <>c__DisplayClass11_0`1& )
at SixLabors.ImageSharp.Formats.ImageDecoder.WithSeekableStream[T](DecoderOptions options, Stream stream, Func`2 action)
at SixLabors.ImageSharp.Formats.ImageDecoder.Decode(DecoderOptions options, Stream stream)
at SixLabors.ImageSharp.Image.Decode(DecoderOptions options, Stream stream)
at SixLabors.ImageSharp.Image.<>c__DisplayClass80_0.<Load>b__0(Stream s)
at SixLabors.ImageSharp.Image.WithSeekableStream[T](DecoderOptions options, Stream stream, Func`2 action)
at SixLabors.ImageSharp.Image.Load(DecoderOptions options, Stream stream)
at SixLabors.ImageSharp.Image.Load(Stream stream)
The image loads fine for example in Chrome and the animation plays.
Prerequisites
DEBUGandRELEASEmodeImageSharp version
3.1.2
Other ImageSharp packages and versions
SixLabors.ImageSharp.Drawing 2.1.1
Environment (Operating system, version and so on)
Windows 11 23H2
.NET Framework version
.NET 7.0
Description
I am trying to load an animated PNG (that I previously created successfully using ImageSharp). Unfortunately I get a NullReferenceException when loading the stream:
var img = Image.Load(inputStream);The image loads fine for example in Chrome and the animation plays.
Steps to Reproduce
using (var fileStream = await file.OpenAsync(FileAccessMode.Read))var img = Image.Load(inputStream);Images