Add support for native V4L implementation on Linux/RPi

image/encode.go

@@ -0,0 +1,31 @@
+// +build !jpeg
+
+// Package image.
+package image
+
+import (
+	"image"
+	"io"
+
+	jpeg "github.com/antonini/golibjpegturbo"
+)
+
+// NewEncoder returns a new Encoder.
+func NewEncoder(w io.Writer) *Encoder {
+	return &Encoder{w}
+}
+
+// Encoder struct.
+type Encoder struct {
+	w io.Writer
+}
+
+// Encode encodes image to JPEG.
+func (e Encoder) Encode(img image.Image) error {
+	err := jpeg.Encode(e.w, img, &jpeg.Options{Quality: 75})
+	if err != nil {
+		return err
+	}
+
+	return nil
+}