initial commit

resolution.go

@@ -0,0 +1,42 @@
+package model
+
+import (
+	"fmt"
+	"strconv"
+	"strings"
+)
+
+type Resolution int
+
+const (
+	Resolution4K     Resolution = 2160
+	ResolutionQuadHD Resolution = 1440
+	ResolutionFullHD Resolution = 1080
+	ResolutionHD     Resolution = 720
+	ResolutionSD     Resolution = 480
+
+	ResolutionUnknown Resolution = 0
+)
+
+func ParseResolution(str string) (Resolution, error) {
+	switch strings.TrimSpace(str) {
+	case "4K":
+		return Resolution4K, nil
+	case "HD":
+		return ResolutionHD, nil
+	case "SD":
+		return ResolutionSD, nil
+	default:
+		v, err := strconv.Atoi(strings.TrimSuffix(str, "p"))
+		return Resolution(v), err
+	}
+}
+
+func (r Resolution) String() string {
+	switch r {
+	case Resolution4K:
+		return "4K"
+	default:
+		return fmt.Sprintf("%dp", r)
+	}
+}