Add jpegli

image/decode_jpegli.go

@@ -0,0 +1,31 @@
+//go:build jpegli
+
+// Package image.
+package image
+
+import (
+	"image"
+	"io"
+
+	"github.com/gen2brain/jpegli"
+)
+
+// NewDecoder returns a new Decoder.
+func NewDecoder(r io.Reader) *Decoder {
+	return &Decoder{r}
+}
+
+// Decoder struct.
+type Decoder struct {
+	r io.Reader
+}
+
+// Decode decodes image from JPEG.
+func (d Decoder) Decode() (image.Image, error) {
+	return jpegli.DecodeWithOptions(d.r, &jpegli.DecodingOptions{
+		DCTMethod:       jpegli.DCTIFast,
+		FancyUpsampling: false,
+		BlockSmoothing:  false,
+		ArithCode:       true,
+	})
+}