supporting video media

media/image.go

@@ -0,0 +1,50 @@
+package media
+
+import (
+	"image"
+	"image/jpeg"
+	"os"
+	"path"
+
+	"github.com/nfnt/resize"
+)
+
+func imageSize(name string) (image.Rectangle, error) {
+	f, err := os.Open(name)
+	if err != nil {
+		return image.ZR, err
+	}
+	defer f.Close()
+
+	cfg, _, err := image.DecodeConfig(f)
+	if err != nil {
+		return image.ZR, err
+	}
+
+	width := cfg.Width
+	height := cfg.Height
+
+	return image.Rect(0, 0, width, height), nil
+}
+
+func ThumbImage(filename string, img image.Image, size image.Rectangle) error {
+	os.MkdirAll(path.Dir(filename), 0755)
+	fthumb, err := os.OpenFile(filename, os.O_CREATE|os.O_WRONLY|os.O_TRUNC, 0655)
+	if err != nil {
+		return err
+	}
+
+	img = resize.Resize(uint(size.Dx()), uint(size.Dy()), img, resize.Bilinear)
+
+	err = jpeg.Encode(fthumb, img, nil)
+	if err != nil {
+		return err
+	}
+
+	err = fthumb.Close()
+	if err != nil {
+		return err
+	}
+
+	return nil
+}