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A JPEG XL source is accepted, and orig of one is JPEG XL. The format jxl works in plain and encrypted URLs and on the generator page, served as image/jxl; auto chooses it first when Accept names image/jxl. govips sends libvips a JPEG XL distance, which overrides the quality, so q becomes a distance, keeping 100 lossy. Metadata is removed from the image before the JPEG XL save, as govips cannot have libvips strip it, and the image is given 72 dpi so that the EXIF block libvips 8.16 adds holds nothing from the source. The sRGB conversion moved ahead of the format switch, and a CMYK image with no ICC profile is converted to sRGB, as libvips cannot save CMYK as JPEG XL. Model: opus-5-5
59 lines
1.5 KiB
Go
59 lines
1.5 KiB
Go
package magic
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import "testing"
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// testMIMEJXL is the MIME type of JPEG XL.
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const testMIMEJXL = "image/jxl"
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// TestDetectFormatJPEGXL verifies that both JPEG XL signatures, that of a
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// bare codestream and that of the container, are detected as image/jxl.
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func TestDetectFormatJPEGXL(t *testing.T) {
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t.Parallel()
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tests := []struct {
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name string
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data []byte
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}{
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{"codestream", pad(0xFF, 0x0A)},
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{"container", pad(
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0x00, 0x00, 0x00, 0x0C, 0x4A, 0x58, 0x4C, 0x20, 0x0D, 0x0A, 0x87, 0x0A,
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)},
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}
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for _, tt := range tests {
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t.Run(tt.name, func(t *testing.T) {
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t.Parallel()
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got, err := DetectFormat(tt.data)
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if err != nil || got != MIMETypeJXL {
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t.Errorf("DetectFormat() = %q, %v, want %q", got, err, testMIMEJXL)
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}
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err = ValidateMagicBytes(tt.data, testMIMEJXL)
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if err != nil {
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t.Errorf("ValidateMagicBytes(%q) error = %v", testMIMEJXL, err)
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}
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})
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}
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}
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// TestJPEGXLMIMEType verifies that image/jxl is a supported input type and
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// maps to and from the format jxl.
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func TestJPEGXLMIMEType(t *testing.T) {
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t.Parallel()
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if !IsSupportedMIMEType(testMIMEJXL) {
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t.Errorf("IsSupportedMIMEType(%q) = false", testMIMEJXL)
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}
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format, ok := MIMEToImageFormat(testMIMEJXL)
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if format != FormatJXL || !ok {
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t.Errorf("MIMEToImageFormat(%q) = %q, %v, want %q, true",
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testMIMEJXL, format, ok, FormatJXL)
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}
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if got := ImageFormatToMIME(FormatJXL); got != testMIMEJXL {
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t.Errorf("ImageFormatToMIME(%q) = %q, want %q", FormatJXL, got, testMIMEJXL)
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}
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}
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